AMERICOAN ENT 1C MOLOG-Y. A DESCRIPaMOM OF THIlE INSECTS OF NORTH AMERICA, THOMAS SAY, With tfllutrmtats taawq and tlordnit aftrt ^(ItllC. ED)ITEI) BY J ()HN 1L. LE CONTE. M. MD. WITH A MEMOIR OF THE AUTHOR, BY GEORGE ORD. VOL. II. BOSTON: ESTES & LAURIAT, 143 WASHINGTON STREET. CONTENTS OF VOL. II. Preface. v Descriptions of several new species of North American Insects, (from the Journal of the Academy of Natural Sciences of Philadelphia, Vol. 1, No. 2, June, 1817; pp. 19-23,) 1 Some account of the insect known by the name of Hessian Fly, and of a parasitic insect that feeds on it, (ibid. Vol. 1, No. 3; 1817, pp: 45-48,) 4 D)escriptions of the Thysanourae of the United States, (ibid. Vol. 2, 1821; pp. 11-14;) 7 An account of the Arachnides of the United States, (ibid. Vol. 2, 1821; pp. 59-83,) Descriptions of the Myriapodae of the United States, (ibid. Vol. 2, 1821; pp. 102-114,) 24 On a South American species of Oestrus which inhabits the human body, (ibid. Vol. 2, part 2, 1822, pp. 353 — 360,) 32 Descriptions of Dipterous Insects of the United States, (ibid. Vol. 3, 1823, pp. 9 —54,) 38 continuation, (ibid. Vol. 3, 1823, pp. 73-104,) 67 Descriptions of Coleopterous Insects collected in the late Expedition to the Rocky Mountains, performed by order of Mr. Calhoun, Secretary of War, under the command of Major Long, (ibid. vol. 3, 1823, pp. 139 — 216,) 89 continuation, (ibid. Vol. 3, 1824, pp. 238 —282,) 139 continuation, (ibid. Vol. 3, 1824, pp. 298-331,) 167 continuation, (ibid. Vol. 3, 1824, pp. 403-462,) 187 continuation, (ibid. Vol. 4, 1825, pp. 88-99,) 225 Descriptions of new Hemipterous Insects, collected in the Expedition to the -Rocky Mountains, performed by order of Mr. Calhoun, Secretary of War, under command of Major Long, (ibid. Vol. 4, 1825, pp. 307 —345,) 237 iv. CONTENTS. Descriptions of new species of Hister and Hololepta, inhabiting the United States, (ibid. Vol. 5, 1825, pp. 32 -47,) 260 Descriptions of new species of Coleopterous Insects, inhabiting the United States, (ibid. Vol. 5, Dec. 1825, pp. 160-204,) 271 continuation, (ibid. Vol. 5, Nov. 1826, pp. 237-284,) 304 continuation, (ibid. Vol. 5, 1826, pp. 293-304,) 339 Descriptions of North American Dipterous Insects, (ibid. Vol. 6, 1829, pp. 149-178,) 348 continuation, (ibid. Vol. 6, 1830, pp. 183-188,) 368 Descriptions of new North American Hemipterous Insects, belonging to the first family of the section Homoptera of Latreille, (ibid. Vol. 6, 1830, pp. 235-244.) 371 continuation, (ibid. Vol. 6, 1831; pp. 299 —314,) 378 Descriptions of new North American Neuropterous Insects, and observations on some already described, (ibid. Vol. 8, 1839, pp. 9-46,) 388 A Monograph of North American Insects of the genus Cicindela, (from the Transactions of the American Philosophical Society, new series, Vol. 1, 1818, pp. 401 —426,) 415 Descriptions of Insects of the families of Carabici and Hydrocanthari of Latreille, inhabiting North America, (ibid. Vol. 2, No. 1, 1823; pp. 1-109,) 435 Descriptions of new North American Insects, and observations on some already described, (ibid. Vol. 4, 1834, pp. 409-470,) 521 continuation, (ibid. Vol. 6, 1836; pp. 155-190,) 587 Descriptions of new North American Coleopterous Insects, and observations on some already described, (from the Boston Journal of Natural History, Vol. 1, No. 2, May, 1835, pp. 151-203,) 630 Descriptions of new North American Hymenoptera, and observations on some already described, (ibid. Vol. 1, No. 3, May, 1836,; pp. 210-305. 672 continuation, (ibid. Vol. 1, No. 4, May, 1837; pp. 361 -416 747 Additions and Corrections, 790 Index, 791 PREFACE. While the index of the present volume was passing through the press, I received, through the kindness of a friend, a copy of the first edition of Say's Entomology, a work of extreme rarity, and which I had never before seen. It contains six plates used subsequently in the same work; but as they represent in part species not previously described, the work must be cited, and I therefore subjoin a list of the figures. The date on the title page is 1817. Papilio Philenor... Plate 1 Geotrupes Tityus... 2 Nemognatha immaculata.. 8 Notoxus monodon... 4 bicolor.... 4 Berytus spinosus.... Cicindela formosa... 10-notata *.. 6 Much to my regret the following error was discovered too late for insertion in the corrections on page 790. Page 328 line 10, for L. OUTTATA read L. 6-GUTTATA. A typical specimen of this species in Dr. Melsheimer's collection is the same as Leptostylus interruptus, (Amniscus interruoptus Hald.) A typical specimen of Elater viridis (vol. 1, p. 390) in Dr. Mlelsheimer's cabinet, is the Corymbites afterwards described as C. micans Germar. The other species of Say, mentioned by me as not determined, do not exist in the collections either of Dr. Melsheimer or of the late Dr. Harris. ENTOMOLOGICAL WRITINGS OF THOMAS SAY. [From the Journal of the Academy of Natural Sciences, Vol. 1, No. 2; June, 1817: pp. 19-23] Descriptions of several New Species of North American Insects. Order COLEOPTERA. Genus CICINDELA Linn. Fab. &c. Antennae inserted into the anterior margin of the eye. Palpi filiform, the intermediate and posterior ones nearly equal, penultimate joint of the latter hairy. Thorax short. Elytra flat, rounded at the tip. Clypeus shorter than the labrum. 1. C. FORMOSA, American Entomology, Plate VI.* [Plate XVIII: ante, 1, 35.] 2. C. DECEMNOTATA, American Entomology, Plate VI. [Plate XVIII: ante, 1, 34.] [20] 3. C. DORSALIS.-Brassy: elytra white; two curved lines on each, suture and curved branch near the base green: lip and tail pale. Inhabits New Jersey. Head brassy, naked, with green edges. Labrum, mandibles and palpi white; tips of the mandibles and terminal joint of the palpi dusky. Thorax brassy, varied with green, margin and back longi. tudinally hairy. Scutel green. Elytra white, irregularly punctured; suture green, a lunated branch on each elytron terminating at the middle of the base; disk with two abbreviated lines, of which the anterior is curved outwards and the posterior one inwards, respectively terminating at one of the ends opposite the cen*These reference are to the suppressed first edition of the American Entomology, which I have never seen. The first volume of the second edition reprinted in this work was published in 1824.-LEc. 2 ACADEMY OF NATURAL SCIENCES tre of the other. Body beneath hairy on the sides; hair short, prostrate, cinereous; last segment of the abdomen and tail yellow. ish. On the sea beach of New Jersey; numerous. [Afterwards described by Dejean as C. signata.-LEC.] 4. C. HIRTICOLLIS.-Dull brownish-cupreous, beneath green; trunk and head with cinereous hair; lip white; [21] outer margin of each elytron white, with two abbreviated bands, and an intermediate refracted one; trochanters purple. Inhabits North America. Head coppery, varied with green and blue. Labrum and base of the mandibles white. Thorax very hairy, impressed lines blue. Elytra punctured irregularly with green, a marginal lunale at base, the extremities of which are almost equally prominent; the band is divaricated on the margin so as to join the anterior lunule, but it is interrupted before the terminal lunule, abruptly refracted at the centre of the elytron and curved near its termination, towards the suture. Body beneath green, very hairy. Length rather more than half an inch. Common in Pennsylvania, very much resembles C. trifasciata, for which it is probable it has generally been mistaken. [This description is very indefinite, but the expressions' thorax very hairy,' and'band divaricated on the margin so as to join the anterior lunule,' lead me to refer it to our common sea shore species afterwards described as C. albohirta Dej.; the figure given by Say in the Transactions of the American Philosophical Society (infra) represents perfectly that species. It does not live within the limits of Pennsylvania, though on the banks of rivers beyond the Mississippi it is occasionally seen.-LEc.] 5. C. PUSILLA.-Above black, obscure; elytra with two lunules and a recurved band, white. Body beneath black-blue, or greenish. Trochanters testaceous. Inhabits with the first. [Kansas and Nebraska.] Elytra with a marginal lunule at base and another at the tip, both very narrow and white; an intermediate band, divaricate on the margin, recurved at the middle of the elytron and terminating near the suture behind. Labrum and base of the mandibles whitish; the four basal joints of the antennae purple. Length not quite half of an inch. Found by Mr. Nuttall. The band is often obsolete, or only detached portions of it are visible, the enlarged marginal part is permanent. [22] [Vol. I. OF PHILADELPHIA. 3 Genus NEMOGNATHA Illiger, Zonitis of Fabr. and Latr. Maxillae very much elongated, inflected, filiform. N. IMMACULATA.-Lemon yellow, immaculate. Elytra with scattered punctures. Maxilla not longer than the thorax, and with the antennae and palpi black. N. IMMACULATA, American Entomology, plate III. [Plate VII.; ante, 1, 13.] Inhabits the plains of the Missouri. Antennae black, basal joint pale testaceous. Eyes, maxilla, palpi, tips of the thighs and tarsi black. Elytra irregularly punctured, naked, polished. Comes near to the description of Zonitis pallida of Fabricius, but that insect is said to be large, and may probably be a true Zonitis. Our specimens are not more than half the size of N. vittata. Found on thistles (Cardui) by Mr. Nuttall: numerous. Genus ZONITIS Fabricius and Latreille. Maxillae not elongated. Antennae with the first and the third joint of the same length, the second a little shorter, the third and following cylindric, the last one fusiform, terminating abruptly in a short point. Z. BILINEATA.-Ferruginous. Elytra pale yellowish, with a black fillet. Scutel black. Inhabits with the preceding on thistles. Nuttall. [23] Antennae black, the two basal joints ferruginous. Eyes black. Elytra naked, punctured, the fillet occupies the middle of each elytron and is abbreviated at the base and apex. Scutel black. Tibia fuscous. Less than the preceding insect. In its color and appearance, except as to size, it resembles N. vitatat. Order DIPTERA. Genus DIOPSIS Linn. Head furnished with two inarticulate, immoveable horns. Eyes situated at the extremities of the horns. Antennae small, placed beneath the eyes. D. BREVICORNIS- Black, pedicels short, not so long as the in. terval between the bases. [Ante vol. 1, p. 116.] Inhabits Pennsylvania. Head rufous; vertex brown, thorax blackish, a little blended 1817.] 4 ACADEMY OF NATURAL SCIENCES with cinereous, a lunate impression on each side before, an impressed band on the middle interrupted on the back; and an impressed angulated one behind. Lateral spines short, black; posterior ones longer, rufous. Wings fasciated with brown near the apex. Feet rufous, thighs, and tibia towards the tips, blackish, anterior thighs thickened. Poisers white. Abdomen black immaculate. Length rather more than three-twentieths of an inch. Extremely rare; I found but a single individual in May last seated on a leaf of the Skunk Cabbage, (Pothos foetida) near the Wissahickon Creek a few miles from this city. This insect will be considered as a most interesting addition to the American Fauna. (Achias Fab.) The insects above described I believe to be new, at least they are not noticed in any book to which I have access. [From Vol. 1, No. 3: pp. 45-48.] Some account of the insect known by the name of Hessian Fly, and of a parasitic insect that feeds on it. Read June 24th, 1817. Order DIPTERA. Genus (ECIDOMYIA. Genus Tipula of Linn6 and Degeer. Chirononmus of Fabr. Trichocera of Lamarck. Cecidomyia of Latr. and Meigen. Antenna filiform, joints subequal, globular, hairy. Proboscis salient. Wings incumbent, horizontal. C. DESTRUCTOR.-Head and thorax black; wings black, fulvous at base; feet pale, covered with black hair. Inhabits the Northern and Middle States. Body clothed, with short black hairs; head black; antennae shorter than the body, somewhat smaller toward the tip, verticillate, joints moniliform, separated by a hyaline filament. Thorax gibbous, black, glabrous, and polished. Scutel prominent, color of the thorax rounded behind. Wings ciliate, rounded at tip, blackish, the fulvous color of the base is sometimes extended upon the nerves of the wing, paler and gradully disappearing before the middle; longer than the abdomen. Feet long, slender, [46] thighs fulvous at base, furnished at the tip with [Vol. I. OF PHILADELPHIA. 5 several very acute claws. Poisers, pale nearly as long as the thorax, with a suboval capitulum. Breast sometimes fulvous. Abdomen brownish. Female.-Antenna longer than the thorax, the joints somewhat oval, not separated by filaments. Abdomen elongate-oval, above rectilinear, beneath somewhat ventricose, fulvous, with a dorsal and ventral black vitta widely interrupted by the sutures. Tail more or less acute in the dead specimen in proportion as the oviduct is exserted. Length rather more than three-twentieths of an inch. Eggs elongated, linear, pale fulvous. Larva.-Body somewhat fusiform, whitish; tail acute, rather abruptly attenuated; head incurved and attached by the mouth; above hyaline, exhibiting an internal, abbreviated, visceral, green line; beneath with opaque white clouds, which in the young animal are perfectly separate and about nine on each side, with an intermediate series of smaller ones; as the larva advances to its full stature, these unite so as to exhibit the appearance of regular transverse segments; near the anterior extremity are the rudiments of feet resembling obsolete tubercules, or crenulse; when taken from the culm it is almost inert, exhibiting very little motion to the eye. Length three-twentieths of an inch, breadth one-twentieth. Pupa.-Resembles the mature larva, but is of a dark reddishbrown color; and appears perfectly inert. This well known destroyer of the wheat has received the name of "Hessian Fly," in consequence of an erroneous supposition, that it was imported in some straw with the Hessian troops during the revolutionary war. But the truth is, it is absolutely unknown in Europe, and is a species entirely new to the systemsbeing now for the first time described. The insect described by Mr. Kirby in the Trans. Lin. Soc. of Lond. vol. iv. p. 232, and named by him Tipula Tritici, is without doubt of the same genius with this, but specifically distinct. [47] The history of the changes of this insect, is probably briefly this:-The eggs are deposited by the female in different numbers from one to eight, and perhaps more, upon a single plant of wheat, and in so doing the parent exhibits another instance of that provident care for the welfare of her offspring, which is so strongly evinced by many of the insect race. The egg is not placed at the axilla of either of the leaves indifferently, but display1817.] 6 ACADEMY OF NATURAL SCIENCES ing some portion of botanical knowledge, the fly carefully insinuates her elongated oviduct between the vagina of the inner leaf and the culm nearest the root of the plant, where the larva when excluded from the egg will be in immediate contact with the culm, from which alone its nourishment is derived. In this situation, with the body inverted, the head being invariably towards the roots, or if above, towards the first joint, the infant larva passes the winter. The pressure and puncture of the insect in this state of its being, upon the culm, produces a longitudinal groove of sometimes sufficient depth to receive almost one-half of the side of its body. When several of them are contiguous on the same plant, the pressure on the body of the larva is unequal, and an inequality in the form of the body is the consequence, as well as the destruction of the plant which is subjected to their attack. The perfect fly appears early in June, lives but a short time, deposits its eggs and dies; the insect from these eggs complete the history by preparing for the winter brood. Order HYMENOPTERA. Genus CERAPHRON Latr. Antennae infracted, moniliform, ten or twelve jointed, basal joint long, cylindrical. Abdomen subovate. Inferior wings without apparent nerves. Superior wings with a costal nerve, and a single branch, forming an incomplete radial cellule. C. DESTRUCTOR.-Black, granulated; abdomen glabrous, polished; feet, and base of the antenna, whitish. [48] In the Larva of Cecidomyia destructor.-Head black, opaque, sometimes brassy, granulated over its entire surface; eyes not prominent, rounded in compliance with the curve of the head, and with the stemmata, red-brown; antennae pale brown, furnished with short cinereous hairs, the two basal joints pale yellowish; the terminal ones in the male a little dilated and approximated so as to form an obvious ovate-acute mass. Thorax with the granulae equal to those of the head; black, usually brassy before the line of the base of the wings; nerve of the wings pale brownish; feet whitish with black apophysis. Abdomen ovate-acute, perfectly black, highly polished and furnished with a few short hairs; the segments of the base are sometimes pale yellowish or testaceous. Length one-tenth of an inch. [Vol. I. OF PHILADELPHIA. 7 This is often mistaken for the Hessian fly, in consequence of being found in wheat fields in vast numbers during the devastation committed there by that insect, and many have been deceived by the specious circumstance of its evolution from the pupa itself of the destroying larva, under their own observation. But the truth is the Ceraphron belongs to that vast tribe of insects included by Linn6 under the Genus Ichneumon. True to the manners of its kind the parent deposits her eggs within the bodies of the larva of the Cecidomyia destructor, through a puncture made by her acute oviduct for the purpose; the young, when disclosed from the egg, feeding securely within the body of the larva, at length kills it, but not in general until after its change into the pupa state. Protected by this indurated covering, the parasite undergoes its change, and appears in the perfect state, about the latter part of June. It seems probable that this insect prevents the total loss of our wheat crops, by restraining the increase of the Cecidomyia within certain bounds. The Ichneumon Tipulse of Mr. Kirby is congeneric with this, but is doubtless specifically distinct. [From vol. 2, 1821: pp. 11-14.] Descriptions of the Thysanourae of the United States. Read Nov. 21st, 1820. Genus MACHILIS Latr. Eyes compound, occupying almost all the head; [12] abdomen beneath with an appendage for leaping: tail with three styles, of which one is above the others. M. VARIABILIS.-Superior caudal process more than double the length of the others: false feet bisetous at tip: color cinereous or iridescent, varied with black. Inhabits North America. Cabinet of the Academy. Body above cinereous, somewhat iridescent, varied with black; gibbous portion of the body not differently colored; a more or less regular whitish vitta; false feet white, hirsute, setaceous at 1821.] 8 ACADEMY OF NATURAL SCIENCES tip: superior caudal process more than double the length of the inferior ones. Var. a. Body above unicolor, destitute of the white dorsal vltta. Var. b. Body ferruginous, with dusky lateral spots. Var. c. Body with several snowy spots each side. A common insect in many humid places, probably in almost every temperate part of North America. We observed it as far south as East Florida. It is subject to a great many variations. Genus PODURA. Antennae four jointed, filiform, terminal joint entire; body cylindrical: trunk distinct. 1. P. FASCIATA.-Body yellowish-white with four distant black bands; tail black; bands [13] paler beneath; spring white; antennae blackish; eyes black. Length one-twentieth of an inch. Cabinet of the Academy. In considerable numbers under the bark of decaying live oak, &c., in Georgia and East Florida. 2. P. BICOLOR.-Body plumbeous; feet with a few hairs, rather paler at base; nails small, acute: spring large, white eyes deep black. Length from one tenth to three-twentieths of an inch. Cabinet of the Academy. Our most common species, under stones, &c. 3. P. IRICOLOR.-Body blackish iridescent; thorax with long hairs before; abdomen hairy at tip; feet hairy, whitish; head beneath and antennae hairy. Length nearly one fifth of an inch. Cabinet of the Academy. Inhabits Pennsylvania, common. Genus SMYNTHURUS Latr. Antennae attenuated towards the tip, four-jointed, ultimate joint composed of many smaller ones; trunk and abdomen united into a rounded mass. S. GUTTATUS.-Body yellowish white, with numerous reddishbrown, irregular spots, disposed in bands; numerous, sparse, [Vol. II. OF PHILADELPHIA. 9 white hairs, and two tubercles each side of the middle, which are truncated at tip; beneath white; antenna reddish-brown, hairy; face maculated, a line of irregular spots [14] behind the eyes; eyes black; spring flesh-colored. Length rather more than one-twentieth of an inch. Cabinet of the Academy. Found under the bark of the long leaved Pine (P. palustris) in Georgia. [From Vol. 2, 1821; pp. 59-83.] An account of the ARACHNIDES of the United States. The following descriptions of the Arachnides of this' country, which respire by means of tracheae in the manner of insects, may be regarded as the continuation of a series of essays, of which the "account of the Crustacea," &c., is the first, on the vast orders of articulated animals with articulated feet, (Annulosa of Cuvier) natives of this country. As the nature of this journal precludes the introduction of old matter or known facts, I shall confine myself in its pages, to the description of such of these animals only, as appear to be unknown to naturalists, or to the elucidation of such, as from their obscurity, are not understood. Subclass I. CEPHALOSTOMA TA. Order 1st, POD OSOMA TA. Genus *ANAPHIA.t P1. 5. fig. 7.-a, Trophi. Artificial Character.-Mandibles longer than the rostrum, first joint longer than the second; palpi none; nails single. Natural Character.-Body very slender, composed of four segments bearing feet, and a small suboval caudal process; head prominent, not perceptibly contracted behind, and consisting of a prolongation of the anterior segment of the body: eyes four, [60] inserted on a common tubercle, upon the top of the head: mandibles robust, didactyle, inserted at the extremity of the head, porrected, parallel, two-jointed, longer than the rostrum, first joint *From a, without, and an, tactus the touch. 1821.] 10 ACADEMY OF NATURAL SCIENCES elongated attaining the tip of the rostrum; hand abruptly inflected upon the tip of the rostrum: rostrum porrected, cylindrical, truncated at tip, shorter than the body, and inserted beneath the first segment; palpi none; feet eight, filiform elongated, slender: coxme three-jointed, the middle one longest: thighs one-jointed; tibiee, two-jointed: tarsi two-jointed, the first very short; nails single, arcuated, capable of being inflected. A. PALLIDA.-Body whitish: ocular tubercle acute at tip; eyes sanguineous; hands suboval, slightly hairy, not dilated, inflected vertically, and with the fingers, hardly more than two-thirds the length of the preceding joint; fingers arcuated, crossing each other near the tip; a small, rather acute tubercle at the base of the anterior feet (probably the rudiment of the egg-bearing organ;) coxae second joint clavate; tibia first joint rather shorter than the second. Length of the body one fourth of an inch. Span.of the feet one and one half an inch. Inhabits the coast of South Carolina. Cabinet of the Academy. Of this new genus I found two specimens in the bay of Charleston, S. C., upon the branches of the Gorgonia virgulata, and as they have not the egg-bearing organs, I suppose them to be males. This [61] animal resembles Phoxichilus in being destitute of palpi, but differs from it in having didactyle mandibles and simple nails. In the form of the mandibles it resembles Nymphon and Ammothoea but the want of palpi distinguishes it from those genera, its proper situation is probably next to the genus Phoxichilus. It unquestionably, is generically the same with Phalangium aculeatun of Montague, (Trans. Lin. Soc. vol. 9, tab. 5,) which Dr. Leach, in the article Crustaceology of Brewster's Encyclopeedia, refers to the genus Nymphon, but which, as far as I can discover, he has omitted in his subsequent works. It will of course be a second species of this new genus. Order II. POLYMEROSOMATA. Family 2. SCORPIONIDERE.. Genus BUTHUS Leach. Scorpio Latr. Palpi brachiform, didactyle; eyes eight; abdomen terminated by a caudal process of six articulations, of which the terminal one is armed with a venomous aculeus. [Vol. II. OF PHILADELPHIA. 11 B. VITTATUS. —Fuscous, with three fulvous vittae; sides black. Inhabits Georgia and Florida. Cabinet of the Academy. Body above granulated, granules irregular, distant, three fulvous equal vitta, and an elevated, interrupted vertebral line; sides black, rugose, beneath white; thorax roddish-brown, more scabrous before [62] and behind, hardlymla'rd by the vitta, subemarginate before, and divided by a longitdii4!l xipressed line, region of the dorsal eyes blackish; palpi loner 4hati the body, with granulated lines, carpus with three or four f 3ae granules more conspicuous; hand subovate, greatest diameter about equal to that of the preceding joint; fingers filiform, incurved, longer than the hand, reddish brown, furnished with numerous minute teeth feet paler than the palpi, minutely granulated above and beneath; caudal process color of the palpi, longer than the body, with granulated costa, those of the penultimate segment not more conspicuous; terminal segment subovate, slightly mucronate beneath the aculeus, the costal granula minute. Length from tip of the palpi to tip of the caudal process, one inch and seven-tenths. I found numerous specimens of this species on the sea islands of Georgia and in East Florida, hybernating beneath the bark of trees. The wound inflicted by the puncture of their aculeus, causes much pain and intumescence, but is readily cured by the topical application of the volatile alkali. The species to which vittatus is allied, are the punctatus of Degeer and americanus of Linne, but according to Latreille (v. Sonnini's Buffon) these are both spotted with brown, the caudal process of punctatus being of the length of the body and that of americanus three times the length of the body. [63] It is however very possible that our species may be a variety ofpunctatus. Genus CHELIFER Geoff, Leach. Palpi brachiform, didactyle; thorax with the first segment divided by a transverse indented iine; eyes two; mandibles short. 1. C. MURICATUS.-Third joint of the palpi nearly three times 1821.] 12 ACADEMY OF NATURAL SCIENCES as long as the second, linear, gradually a little attenuated to the base; thorax muricated. Inhabits North America. Cabinet of the Academy. Body ovate, narrowed before, rounded behind; thorax blackbrown opake, gradually narrowed from the base to the tip of the mandibles, armed with numerous short, robust spines; feet rufotestaceous; palpi rufous basal joints subglobular, gibbous behind third joint cylindrical, nearly three times longer than the second, armed with short rigid hairs, and gradually attenuated to the base, fourth joint shorter but somewhat larger than the preceding one, and gradually much attenuated to its base; hand black-brown, above oblong subovate, laterally linear, fingers as long as the hand paler, incurved and furnished with a few elongated, flexible hairs; abdomen above black-brown, and with the feet furnished with minute, spine-like hairs, segments margined with obsolete pale testaceous. Length rather more than one-tenth of an inch. [ 64 ] Common in decaying wood, under bark, in houses, under stones, &c. I found a variety on the river St. John, in East Florida, of which the anterior portion of the abdomen and posterior part of the thorax is rufous. This species considerably resembles C. Hermanni of Leach, (Zool. Misc. vol. 3, p. 49.) 2. C. OBLONGUS.-Second joint of the anterior feet hardly twice as long as the first, rather larger towards the base; thorax polished. Inhabits North America. Cabinet of the Academy. Body oblong, sublinear: thorax reddish-brown, polished; testaceous at base, rather abruptly attenuated from the middle to the tip, and with abbreviated flexible hairs, instead of spinules: feet pale, testaceous; palpi reddish-brown, with dilated, short joints, and furnished with numerous flexible hairs, second and third joints subequal, the latter rather shorter and dilated in the middle: hands ovate, almost truncated at base; fingers shorter than the hand, and with a few longer hairs; abdomen above brownish, slightly hairy, polished, margins of the incisures testaceous. Smaller than the last. Occupies the same situations as the preceding. It bears con[Vol. II. OF PHILADELPHIA. 13 siderable resemblance, in the form of the palpi, to the C. Geoffroyi of Leach, (Zool. Misc. p. 50.) This species, as well as the preceding, are readily distinguishable from the Phalangium acaroides of Linn6, by the mutic antepenultimate segment of the palpi. Order 3. D UOMEROSOMATA. Family 2. PHALANGIDEE. Genus PHALANGIUM. Body rounded; feet elongated; tarsi with numerous joints; mandibles salient much shorter than the body: eyes two, supported on a common tubercle. 1. P. VITTATUM.-Whitish, with a dorsal fuscous vitta; terminal joint of the palpi not pectinated with spines. Inhabits the Southern States. Cabinet of the Academy. Body whitish, truncated and fuscous behind, a dorsal fuscous vitta from the clypeus to the cloaca and lateral fuscous line, above with dense, obtuse granules, beneath with distant ones; three profoundly impressed lines before the middle, of which the anterior one is semicircular including the ocular tubercle, the intermediate one transverse, and the posterior one recurved; ocular tubercle prominent, slightly contracted at base, crowned with from four to six more conspicuous, acute spines: clypeus not elevated, concave beneath the obtuse tip; feet, second pair about fifteen times as long as the body; tarsi capillary, articulations not contracted. Length, female nearly one-fifth of an inch. Male much smaller. The armature of the ocular tubercle is obsolete in the male, and in this sex there are generally two whitish [66] lines, drawn from the base of the occular tubercle to the tip of the clypeus, which are also sometimes visible in the female. I have not found these in coitu, but have considered them of the same species, from their being associated and somewhat similar in form and markings. 2. P. DORSATUM.-Whitish with a dorsal fuscous vitta, joints of the palpi armed with a series of spines. Inhabits the United States. 1821.] ACADEMY OF NATURAL SCIENCES Cabinet of the Academy. Body rounded behind, whitish, a dorsal fuscous vitta continued from the clypeus to the cloaca, and obsoletely punctured with whitish, a few submarginal, obsolete, irregular lines or spots; granules dense, obtuse, not prominent; ocular peduncle prominent, contracted at base, slightly muricated before, obsoletely granulated; clypeus not elevated; palpi rather long, robust; second, third, and fourth joints pectinated on the exterior edge with acute, distant spines; fifth joint more densely pectinated on the inner edge: feet armed with minute distant spines; coxa blackish; pectus with distant very distinct, obtuse granules; radical supports of the feet with a moniliform line each side in the incisures; venter nearly glabrous, granules indistinct: tergum not deflected. Length of the female one-fifth of an inch. Very similar in color to the preceding, but sufficiently distinct by the spinulose palpi, &c. 3. P. NIGRUM.-Body ovate, blackish: clypeus [67] prominent; radical joint of the three anterior pairs of feet armed with a spine; pectus and base of the feet white. Inhabits the Southern States. Cabinet of the Academy. Body ovate, a little dilated each side behind the posterior feet, blackish, with a few obsolete paler spots, above and beneath above granulated, granules spherical, irregularly placed in somewhat reticulated lines; ocular tubercle destitute of spines, with obtuse granules; clypeus prominent, somewhat elevated; feet short, fuscous, whitish at base; second pair hardly four times as long as the body, and, with the first pair, armed with a prominent, cylindric, obtuse spine behind the basal joint; third pair with a similar spine before; pectus whitish; venter blackish. Length, female nearly one-fifth of an inch. A very distinct species, and not uncommon in the Carolina's and Georgia. 4. P. GRANDIS [GRANDE].-Body oval, covered with short spines; ocular tubercle spinous; feet rather short. Inhabits the Southern States. Cabinet of the Academy. Body oblong-oval, scabrous, with approximated, robust, short, [Vol. II. OF PHILADELPHIA. 15 acute, spinules; rufo-ferruginous, two impressed transverse lines before the middle; ocular tubercle prominent, slightly contracted at base, crowned with numerous, robust, acute spinules; clypeus hardly elevated; feet rather short; pectus with numerous, minute acute granules; venter with but few. [68] Length, female nearly-seven-twentieths of an inch. Much the largest species I have seen. Genus GONYLEPTES Kirby. Feet moderate; tarsi from six to ten-jointed; mandibles chelate; maxillse none; palpi unguiculated. G. ORNATUM.-Ocular tubercle hardly elevated, unarmed; hind feet remote; two erect spines behind. Inhabits Georgia and Florida. Cabinet of the Academy. Body ovate reddish-ferruginous, destitute of granules, edge slightly contracted over the insertion of the fourth and fifth pairs of feet, two small acute tubercles on the middle of the disk, and two large, prominent, erect, acute spines on the hind margin, no impressed line before the middle, an anterior arcuated yellow transverse line connected to a posterior undulated one by a yellow line which is crossed near the middle by two obsolete yellow bands; ocular tubercle slightly raised, unarmed; distance between the eyes much greater than their diameters, orbits black; clypeus abruptly somewhat acute in the middle of the tip: mandibles rather small, the fingers subequal, and crossing each other at tip; palpi robust, and when at rest concealing the mandibles; penultimate articulation dilated on the exterior side and elongated and depressed: terminal joint half as long as the preceding, cylindrical; terminal nail elongated, moveable capable of being inflected; [69] feet short, not three times as long as the body, three anterior pairs before the middle, posterior ones behind the middle and remote from the others; fourth and fifth pairs with double nails: abdomen, segments with a series of equidistant, minute tubercles. Length one-fifth of an inch. This remarkably distinct species, we first discovered on Cumberland island Georgia, and subsequently many specimens occurred 1821.] 16 ACADEMY OF NATURAL SCIENCES in East Florida, where it appears to be common. It is not an inhabitant of the Northern States. Family 3. ARANEIDEi'E. Although I have a considerable number of descriptions of Araneides, which I think are new, yet, as I am not sufficiently well acquainted with the species of this family, in their different ages, prudential motives induce me to refrain from publishing them until further investigation shall qualify me for the task. Order 4. MONOMEROSOMA TA. Genus TROMBIDIUM. Body consisting of a thorax and head united and distinct from the abdomen; two anterior pairs of feet distant from the others; eyes pedunculated, lateral; palpi with a moveable appendice beneath their tips. 1. T. SCABRUM.-Body ovate, broadest and very obtusely rounded before, pale reddish, minutely scabrous, surface unequal, with numerous [70] indentations, and with hardly perceptible hairs; thorax obtriangular, short: eyes white; feet whitish. Cabinet of the Academy. In forests, on trees, &c.; not uncommon. 2. T. SERICEUM.-Body oblong-subovate, broadest before, narrowing behind, densely covered with short silken hair; thorax elongated, sublinear, slightly contracted before the middle, and with a darker, central line above: eyes white, placed in a transverse line; feet paler, whitish. Cabinet of the Academy. Inhabits trees, in forests, under stones, &c., and is more common than the preceding. Genus ERYTHRAUS Latr. Body without division, the two anterior pairs of feet not distant from the others; eyes two, sessile; palpi conic, chelate. E. MAMILLATUS.-Body ovate, granulated, reddish-yellow, with a marginal impressed line, edge thickened, a robust, obtusely conic, granulated spine on the anterior lateral edge, before the middle of the disk two indented punctures, a few distant hairs; eyes approximated, whitish; mandibles granu[Vol. II. OF PHILADELPHIA. 17 lated, a rounded tubercle on each of the middle above; feet paler than the body, yellowish, with scattered hairs. Less than one-twentieth of an inch. Under bark of trees, &c. Georgia and East Florida. [71 Genus GAMASUS Latr. Mouth with mandibles; palpi prominent, very distinct, filiform; pulvilli at the apex of the tarsi. 1. G. ANTENNAEPES.-Body ovate, rufous, somewhat narrowed before, hairy and coriaceous; edge of the abdomen membranaceous, white; feet, anterior pair filiform, antenneeform, longer than the body, remaining pairs much more robust, subequal, posterior thighs tridentate near the inferior tip; origin of of the palpi with five or six acute spines above. Cabinet of the Academy. I have frequently observed this species, inhabiting, in considerable numbers, the body of Passalus cornutus. The fore feet are, as their slender appearance indicates, used as antennae to feel the way, and not as feet to support the body. 2. G. SPINIPES.-Body suboval, hirsute, rufous; feet with rather longer distant hairs, second pair very robust, third joint armed beneath with a large, prominent, acute, spine, which is nearly as long as the transverse diameter of the joint, compressed, slightly serrated on its anterior edge, and with an accessory tooth or two at its base: fourth joint with an obtuse tooth beneath, sixth joint with a robust spine before its inferior middle. first and third pairs unarmed, fourth pair dentate beneath the third and fourth joints. Cabinet of the Academy. Inhabits --. [72] Remarkable by the prominent spine of the second pair of feet. 3. G. MUSCULUS.-Body pale, oval, with scattered hairs more numerous each side; feet paler, with a few hairs above, two anterior pairs distant from the others, anterior pair longest, second pair rather more robust. An active little animal, found in great numbers on an anonymous species of Mus, which inhabits East Florida. 5. G. NIDULARIUS.-Body oblong-oval, somewhat depressed, with a slightly elevated margin, and with scattered hairs, whitish 1821.] 2 18 ACADEMY OF NATURAL SCIENCES with internal blackish clouds, and two impressed points in the middle of the back; feet paler, with a few hairs. Cabinet of the Academy. Less than one-fortieth of an inch. Inhabits Hirindo viridis, their nests and young. I am indebted for specimens to Mr. Reynall Coates. 5. G. JULOIDES. —Body oval, pale brownish, depressed, behind vesicular and whitish, the coriaceous epidermis of the tergum terminating before the vesicular posterior margin in an emargination; feet short and very robust; pulvilli dilated, very short. Cabinet of the Academy. I obtained several specimens from the body of Julus maryiaatus. I have also observed it on Polydesmus virginiensis. [73] Genus ORIBITA Lat. Body coriaceous, capitate or rostrated before, palpi and mandibles concealed within the mouth; feet terminated generally by three nails, without pulvillus. 1. O. CONCENTRICA.-Black, opake; tergum concentrically lineated; venter plain. Inhabits Pennsylvania. Cabinet of the Academy. Body spheroidal, black, opake, rounded before and carinated behind, invested with a brown epidermis; disk with about four elevated concentric circles, connected by numerous interstitial elevated lines; posterior carina crenate in compliance with the concentric lines; head, subtriangular, rugose; oral aperture oval, closed by a valvular mentum; eyes two, minute, brownish, elevated on an elongated, slender filiform peduncle; orbits elevated, rather large, placed near the base of the head above; feet rather short, deep black, minutely granulated, terminated by three incurved nails; venter plain, granulated, valves of the cloaca somewhat lineated. A rather common insect, it moves very slowly, and inhabits beneath the bark of trees. I have found it, most frequently, beneath the bark of the common Carya (Nuttall) tomentosa. 2. 0. GLABRATA.-Body glabrous, polished, globular-oval black. Inhabits Georgia and East Florida. [74] [Vol. II. OF PHILADELPHIA. 19 Cabinet of the Academy. Body spheroidal, somewhat oval, glabrous, polished, blackhead longitudinally semi-oval; eyes sessile, near the base of the head each side, remote; feet hairy, pale testaceous, subequal, shorter than the body. I found this species several times under stones, &c. It is sluggish in its movements, like other species of this genus; when alarmed or in danger the feet are thrown forward together over the mouth, and the whole of the thorax is then deflected upon the anterior part of the body; in this state the general form is a solid oval. Genus BDELLA Latr. Palpi elongated, terminated by setae; rostrum conic; eyes four; posterior feet longest. B. OBLONGA.-Body oblong-oval, bright red, paler in the middle and beneath, with a few scattered hairs; rostrum nearly half as long as the body, with two or three pairs of stouter hairs; palpi four jointed, resembling arms; first joint destitute of hairs and longer than the others conjunctly; second and third joints very short; fourth joint longer than the two preceding ones, attenuated towards the base and truncated at tip, with several short hairs and two terminal setae longer than itself, of which the inner one is rather shorter; feet hairy, subequal, pale, the posterior ones rather longer. [75] Length rather more than one-twentieth of an inch. Found in Georgia, under stones, under bark of decaying trees, &c., in rather moist situations. Genus IXODES Latr. Palpi short, simple, valvular, forming with the haustellum a short rostrum; mandibles none; feet with a pedunculated pulvillus and two nails; eyes obsolete or wanting. 1. I. ANNULATUS.-Body oval, pale reddish-brown, tinged with sanguineous, particularly behind, and with several longitudinal and oblique, black, abbreviated lines, scattered punctures, and three abbreviated, longitudinal impressed lines behind; rostrum, with the palpi dilated, rather suddenly contracted at base, and annulated more prominently beneath with about two elevated lines, which on the sides produce an angulated appear1821.] 20 ACADEMY OF NATURAL SCIENCES ance, much shorter than the haustellum, rounded at tip; haustellum, the two superior organs emarginate at tip, exterior division dentate beneath, inferior organ with numerous resupinate teeth resembling fenestrate punctures; posterior to the origin of the palpi above is an orbicular, obscure assemblage of punctures resembling eyes; black dorsal lines of the male somewhat regular, consisting usually of a dorsal line divaricating before, and behind, the middle, furnishing a branch each side, which at the tip of the abdomen [76] is confluent with a lateral line, which also branches off in two or three short lines towards the feet; feet with a short robust nail, and a reclivate pedunculated pulvillus and nails. Found in considerable numbers on a Cervus virginianus, in East Florida. 2. I. ORBICULATUS.-Body nearly orbicular, slightly'narrower before, punctured, ten or twelve longitudinal, abbreviated impressed line on the posterior margin, marginal impressed line none, two longitudinal indented lines before the middle; head transverse subquadrate, posterior edge very obtusely rounded, the posterior angles complying with the general curve; palpi oblong, sublinear. Cabinet of the Academy. Found inhabiting Sciurus capistratus of the Southern States. 3. I. CRENATUS. —Body ovate, with distant deeply impressed punctures, posterior margin lobated by ten or twelve profoundly indented lines, which are abbreviated by an impressed submarginal line, which becomes gradually obsolete before the lateral middle; posterior edge crenulated; thorax none, distinct; head, posterior edge transversely rectilinear, angles slightly arquated backward and rounded at tip; palpi oblong, sublinear and regularly rounded at tip. Cabinet of the Academy. Found in the Southern States, the color is reddish, [ 77] sometimes slightly varied with whitish, particularly behind, and the lobate divisions of the posterior margin are sometimes whitish above, and the disk is obsoletely lineated with black. 4. I. ERRATICUS.-Body oblong-ovate, gradually narrowed before, sides hardly arquated, with distant punctures, those behind more deeply impressed, posterior margin with ten or twelve [Vol. II. OF PHILADELPHIA, 21 impressed lines which are abbreviated by a submarginal impressed line, two abbreviated lines before; head, posterior edge transversely rectilinear, angles extended backward abruptly, and subacute; rostrum rather short; palpi oval-orbicular. Found in the Southern States; the color is reddish or ferruginous, with acute black lines. 5. I. VARIABILIS.-Body oblong-ovate, gradually attenuated before; sides hardly arquated; a few remote, deeply impressed punctures not more numerous behind; posterior margin with about twelve impressed, abbreviated lines; a lateral, impressed, punctured, submarginal line, obsolete behind; two deeply indented, abbreviated lines before; head, hind edge rectilinear, angles abruptly a little extended backwards, acute; rostrum rather short; palpi ovate; color reddish or ferruginous varied with white, incisures of the feet white. Very much resembles the preceding in form; the white of the back is more or less reticulated, and the [78] feet are white above, or only their joints. May not this be I. lineatus, if so, my name must of course be rejected. 6. I. PUNCTULATUS.-Body oblong-ovate, gradually attenuated before, sides hardly arquated, crowded with impressed confluent punctures; thorax destitute of punctures, but with two impressed undulated lines; abbreviated lines of the posterior margin not deeply impressed, almost obsolete; lateral submarginal line deeply impressed, obsolete behind; head, hind edge rectilinear, angles abruptly a little projected backward, acute; rostrum rather short; palpi oval; eyes distinct, impressed: color ferruginous, thorax white lineated or varied with ferruginous, incisures of the feet white. Considerably like the preceding. 7. I. SCAPULARIS.-Body red, with a few short whitish hairs; thorax blackish-oval, well defined, with numerous punctures; tergum, punctures sparsate, and four or five blackish, obsolete, dilated radii on the disk; a deeply indented submarginal line; no abbreviated marginal lines behind; edge rounded; head beneath and above blackish, posterior edge rectilinear, angles abruptly projected backward, very short, acute; eyes distinct, deeply impressed; rostrum slightly canaliculate above, paler than the head; feet blackish-red, ciliate beneath, terminal joint reclivate 1821.] 22 ACADEMY OF NATURAL SCIENCES near the tip on the anterior edge; origin [79] of the anterior ones, armed behind with a large acute spine. Rather common in forests, and frequently found attached to different animals. 8. I. FUSCOUS [FUSCS]. — Body fuscous, ovate, punctured; tergum with a few black, obsolete lines, and a profoundly indented submarginal line, posterior marginal impressed line none; no distinct thorax; edge rounded; head, posterior edge rectilinear, angles not prominent beyond the rectilinear edge; eyes not visible; palpi suboval, terminal joint rather longer than the preceding one. Cabinet of the Academy. A common species. Genus HYDRACHNA Mull. Latr. Rostrum advanced, conic; mandibles none; palpi projecting, terminated by a moveable appendage: body subglobular; feet natatory. H. TRIANGULARIS.-Body white; eyes two, sanguineous; tergum with a black triangular spot near the eyes, posterior portion black, with a white dorsal line terminating in the cloaca. The specimen, from which this portion of a description was taken, I found in Unio cariosus, in which, possibly, it had adventitiously effected a lodgement. [ 80] Genus LIMNOCHARES Latr. Rostrum hardly prominent; palpi incurved, simple; mandibles none; feet natatory. L. EXTENDENS.-Body ovate, red, minutely lineated; tergum with a few indented points; beneath, origin of the feet paler red; feet, second and third pair ciliate with very fine and long hairs, posterior pair destitute of cilia. Length nearly three-twentieths of an inch. A common species, inhabiting stagnant pools, &c., in forests, and shady places. The posterior feet being destitute of ciliae, are only useful in walking; when the animal is swimming, they are extended behind, without distinct motion. The eggs are globular, surrounded by a white gluten, and are deposited on almost any object indifferently, from two hundred to three hundred in number, arranged somewhat symmetrically in parallel, [Vol. II. OF PHILADELPHIA. 23 rectilinear, or undulated series. I have found them about the middle of May. Genus LEPTUS Latr. Feet six; trophi forming a capitate body; palpi conic, quadriarticulate; an obtuse tube, subconic, advanced; body soft. 1. L. ARANEII [ARANEYE].-Body oval, red, with short, distant hairs; head whitish, somewhat rounded, [81] contracted, at base and acute at tip; palpi white, a little hairy, rather surpassing the tip of the head; tergum with a deeper red eye on each side over the interval between the anterior and second pairs of feet, anteriorly indented, and with two lines each of four or five indented points. Length one-thirtieth of an inch. Cabinet of the Academy. Of this species, I have found a specimen adhering near the base of the palpi of an Aranea. The head-like process, is sometimes retracted so as to be not prominent, but is not long withheld in this position. The body is somewhat contractile, not perceptibly as regard its length, but in its breadth, by an irregularly undulated motion of the edge. 2. L. HIsPIDTrS.-Body suboval; head with a distinct neck; palpi more robust at base; feet elongated, much longer than the body, filiform and furnished with numerous robust, incumbent, flexible setae, about twice the diameter of the leg in length. My Cabinet. I took no less than ten of these animals from a Phalangiumr, to which they adhered very strongly; when feeding, they often are supported only by the rostrum and palpi, the body and feet being elevated so as to be sometimes perpendicular to the supporting surface. [82] Genus OCYPETE Leach. Feet six; mouth rostrated, porrected, with mandibles; palpi elongate-conic, with a moveable appendage at base; body soft; eyes two. O. COMATA.-Body subtriangular, very obtusely rounded behind, hirsute, and narrowed by an arquated line to the rostrum: rostrum short, narrowed and emarginated at tip; posterior feet 1821.] 24 ACADEMY OF NATURAL SCIENCES longer than the body, and with much longer hairs than those of the body. Inhabits several species of Tipula. This is readily distinguishable from the 0. rubra Leach, by the elongated hairs of the feet. The specimens in my possession, are so disposed that the trophi cannot be examined, I therefore refer them to this genus by analogy, drawn from habit, &c. [From Vol. 2, 1821, pp. 102-114.] Descriptions of the MYRIAPOD.E of the United States. Read November 21st, 1820. Class MYRIAPODA. Order 1. CHIL 0 GNA THA. Genus JULUS. Body serpentiform, cylindrical; antennae inserted on the anterior margin of the head, second joint longest, terminal one minute; eyes distinct; feet many. 1. J. IMPRESSUS.-Brown, a series of lateral black dots, beneath yellowish-white; ultimate segment mucronate. My Cabinet. Body cylindrical, immarginate, above brownish, beneath yellowish-white appearing glabrous: segments each with a lateral black spot, whitish lines and dots sometimes obsolete, a transverse series of longitudinal abbreviated obsolete impressed lines, and beneath the stigmata with impressed, more distinct ones, ultimate segment mucronate, spiracles not prominent; eyes rather large, conspicuous, black; labrum yellowish white; antennae brownish. A common species inhabiting under stones, and in humid situations, a variety occurs with a very distinct, acute, longitudinal, dorsal line, and variegated head. 2. J. PUNCTATUS.-Body brownish, with an impressed dorsal line, impressed white dots and spots, ultimate segment unarmed. My Cabinet. [103] Vol. II OF PHILADELPHIA. 25 Body cylindrical, immarginate, above dark brown, glabrous, an obsolete, dorsal, whitish, slightly impressed, acute line; segments each with a white dot on either side above, snd a larger transversely oblong lateral one, which is more completely bisected on the posterior segments into two distinct dots, which on the terminal segments resemble the dorsal ones, ultimate one abruptly narrower than the preceding and truncated, anterior segments attenuated to the head, which is wider than the anterior one, anterior segment as long as the second and third ones conjunctly; spiracles somewhat prominent; eyes very distinctly granulated, subtriangular, black; head dark-brown, labrum white. Inhabits the same situations, and is similar in general form to the preceding species, but is less common and rather smaller. The dots, spots and lines are for the most part slightly impressed. 3. J. ANNULATUS.-Body with numerous, elevated, obtuse lines; of which four are above the stigmata; ultimate segment glabrous, unarmed. Inhabits the Southern States. My Cabinet. Body cylindrical, immarginate, above brownish with a slight tint of red, immaculate, beneath yellowish white; segments each with about fifteen elevated obtuse lines, of which four are equal dorsal, a pyriform, larger, oblique one on the stigmata, and about ten decreasing in size to the feet, anterior segment [104] as long as the three succeeding ones conjunctly and glabrous, posterior one glabrous reddish-brown, as long as the two preceding ones, united and obtusely rounded at tip; head whitish before; antennae white; eyes transverse linear, black: vertex not distinctly impressed. A rather common species in the Southern States, inhabiting with the preceding and in decaying wood. 4. J. LACTARIUS.-Body fuscous with a rufous dorsal line, numerous elevated lines, of which about fifteen are above the stigmata, ultimate segment unarmed. My Cabinet. Body cylindrical, above fuscous, with a dorsal rufous vitta and an obsolete one each side; beneath yellowish white; segments each with numerous, elevated, longitudinal lines, of which about 1821.] 26 ACADEMY OF NATURAL SCIENCES fourteen are above the stigmata and about fourteen below, becoming smaller to the origin of the feet, line of the stigmata geminate, anterior segment as long as the second and third conjunctly, and glabrous on the anterior half, posterior segment not so long as the two preceding ones united, widely rounded at tip; head glabrous; antenna reddish-brown: eyes triangular, granulated, deep black. Not uncommon under stones, &c., and when irritated discharges a lacteous globule from the lateral portion of each segment, diffusing a strong and disagreeable odor. [105] 5. J. MARGINATUS.-Body cylindric glabrous, blackish, segments with a rufous margin; ultimate segment unarmed. My Cabinet. Body cylindric, glabrous, polished, blackish, beneath pale reddish; segments margined behind with rufous, anterior segment as long as the three succeeding ones, conjunctly and entirely margined with rufous, second segment slightly, and obtusely angulated at the lateral tip of the anterior one, ultimate segment as long as the two preceding ones united narrowed to the tip which is rounded: head with an impressed line which is obsolete on the front; labrum pale, deeply and widely emarginated at the tip, with a submarginal, infracted series of ten or twelve punctures furnishing hairs, tip ciliated, reddish, obsoletely dentate. Length more than three inches. A very large species inhabiting decaying wood, &c.; when irritated it diffuses an odor like that of muriatic acid, and is infested by Gamasus Juloides. It varies in color; the margin of the segments and all beneath are sometimes white, the ultimate segment is sometimes almost acutely angled at tip, and there is a distinct lateral series of black dots. 6. J. PUSILLUS.-Body with a lateral series of black spots, terminal segment unarmed. Inhabits the middle States. My Cabinet. [106] Body cylindrical, immarginate, above pale, obsoletely reticulate, and varied with reddish; a lateral series of large black spots, numerous longitudinal, parallel, impressed, acute lines beneath the stigmata becoming gradually shorter to the origin of the feet; beneath whitish; head white beneath the antennae; antennae two joints preceeding the last somewhat dilated, not attenuated [Vol. II. OF PHILADELPHIA. 27 at their bases, nor separated by a contraction; eyes black, longitudinally sublunate; ultimate segment unarmed, longer than the penultimate one, rounded at tip and blackish. Length nearly half an inch. Resembles J. impressus in the character of lateral impressed lines, but is distinct by the unarmed terminal segment; I found it rather common on the Eastern shore of Virginia under the bark of Pinus variabilis. Genus POLYDESMUS Latr. Body elongated, linear depressed. segments with a prominent margin; eyes obolete; feet many; antennae, second joint shorter than the third. 1. P. sERRATUS.-Segments with a double transverse series of slightly raised squamiform elevations. My Cabinet. Segments depressed above, with four minute serratures each side, first segment transversely oblong oval, somewhat angulated on each side behind, second, third and fourth segments with but three serratures [107] first rather longer than the second, and with a single obsolete serrature near the posterior angle, each segment with a double transverse series of twelve slightly elevated, squamiform divisions, anterior segment with but a single series; head glabrous, an impressed longitudinal line on the vertex; antenn.e, feet and terminal segment hairy; color, above reddish-brown, beneath yellowish white. Common in similar situations with the preceding. Julus virginiensis of Drury, is also rather common; it appears to be synonymous with J. tridentata of authors. I have found specimens double the usual size in the Southern States. It seems also to vary in having only the second joint of the feet mucronate, and in being destitute of the robust ventral spines between the feet. 2. P. GRANULATUS.-Segments granulated, granules subequal, arranged in four series. My Cabinet. Body with short hair, pale tinged with red beneath, and feet paler; head dusky, with short dense hairs; labrum whitish; segments somewhat convex, granulated, granules rounded, or longi1821.] 28 ACADEMY OF NATURAL SCIENCES tudinally oblong-oval, elevated, obtuse, approximate and arranged transversely in about four nearly regular series, anterior segment transversely oval, narrower than the head or second segment; stigmata elevated. Found in Pennsylvania. [108] Genus POLLYXENUS Latr. Body membranaceous, pennicillate with setae at tip; antennae inserted under the anterior margin of the head. P. FASCICULATUS.-Body pale brown, linear, incisures ciliated fasciculated each side; head deeply ciliated before. Inhabits the Southern States. Segments smooth, ciliate at the incisures, and fasciculate with brown setae each side, terminal pencil cinereous; head semiorbicular, depressed, deeply and densely ciliated on the edge with setse: eyes small, oval, prominent, placed obliquely in the middle of the lateral margin; antennae very short, thick reddish-brown; feet white. Length rather more than one-tenth of an inch. Beneath stones, &c., in humid situations; not very common. Order 2. SYNGNA THA. Genus LITHOBIUS Leach. Antennae conico-setaceous: dorsal scuta alternately much shorter and concealed. L. SPINIPES.-Joints of the feet with short spines at tip, and a single much longer one beneath the tips. [109] My Cabinet. Body chestnut brown, polished, impunctate, with short sparse hairs; segments with reflected lateral edges, first one shortest, transverse, the second quadrate with narrowed angles, five or six posterior ones, each narrowed behind and emarginate on the hind edge, the posterior angles of those near the caudal segment more acute, caudal segment truncate conico-cylindric; antennae pale testaceous, with dense, very short, rigid hair; terminal joint as long as the two preceding ones conjunctly; feet pale testaceous, joints spinous at tip, an elongated spine at the tip of each be[Vol. II. OF PHILADELPHIA. 29 neath, anterior pair shortest, posterior longest and more robust; labium longitudinally indented, impunctate, teeth of the tip black. Length more than one inch. Very common under stones, &c. The specimen from which this description was taken has but thirty joints to the antennae. Genus CERMATIA. C. COLEOPTRATA Villiers. Is an inhabitant of the Southern States; we observed it both in Georgia and East Florida. It is probable, that, like a vast number of the insects now common in our country, it has been introduced by our shipping from abroad. Genus SCOLOPENDRA. Antenuae conico-setaceous; dorsal scuta subequal; eyes, four each side, hemispherical. [110] 1. S. MARGINATA.-Body obscure olivaceous green; segments margined with dark green; head castaneous. Inhabits the Southern States. My Cabinet. Body obscure olivaceous green, beneath whitish or fulvous; segments impunctured, margined each side and behind with black-green; first, third, and fourth shortest, five or six terminal ones more distinctly margined; head chestnut color; antennae green; feet pale, tipped with bluish green, nails blackish; posterior feet hardly longer than the three terminal segments of the body conjunctly; length of the joints hardly equal to double their breadth; first joint spinous beneath and within, and armed with an acute, strong, projecting angle at the tip. Length more than two and a half inches. Rather common in Georgia and East Florida; it is also found in the West Indies, but does not occur so far north as Pennsylvania. 2. S. VIRIDIS.-Body bluish green; base of the feet and all beneath whitish. Inhabits Georgia and East Florida. My Cabinet. Body above bluish green, immaculate; posterior segments margined with pale yellowish; mandibles yellowish-white; feet whitish at base, terminal joints pale bluish-green, posterior pair pale yellow. 1821.] 30 OF PHILADELPHIA. Length about two inches and a half. [111] I have not known this species to inhabit so far north as Pennsylvania. Genus CRYPTOPS Leach. Anterior edge of the labium not denticulated, hardly emarginate; eyes obsolete; posterior pair of feet longest; basal joint unarmed. 1. C. HYALINA.-Body much depressed, white, with a double blackish internal line; hind feet with third joint five toothed. Inhabits Georgia and East Florida. My Cabinet. Head reddish-brown, polished, impunctured, with scattered hairs, no impressed clypeal line; antennae reddish-brown hirsute, joints sessile, cylindric, terminal ones rounded: body white, polished, two black internal lines, a few sparse hairs, impunctured; feet with a few hairs; posterior feet reddish-brown, first joint not so long as double its breadth, and with the second joint armed with numerous short, rigid setae, with an indented line above; third joint four or five toothed within, fourth joint about two toothed. Length three-fifths of an inch. Numerous specimens of this species occurred beneath the decaying bark of a live oak (Q. virens) on the River St. John, East Florida. The appearance of the posterior feet approximates it to Scolopendra; [ 112] but the eyes exclude it from that genus, as the number of the feet does from Lithobius. 2. C. sExsPINOSA.-First joint of the posterior feet two spined. My Cabinet. Body reddish-ferruginous, punctured; second segment shortest, then the fourth and sixth, terminal one indented at tip, and armed beneath with a double, prominent, robust spine; antennae with very short dense hair, joints oval, separated by a very short peduncle; feet, two moveable short spines at the exterior tip of the fourth joint; fifth joint with one beyond the middle and one at tip; posterior feet, the base beneath a conspicuous, elevated, compressed, acute, sub-triangular spine, and a smaller one on the inner side above, near the middle. Not uncommon in decaying wood. It varies in being impunc[Vol. II. OF PHILADELPHIA. 31 tured beneath. I have a fortuitous variety, of which the antennae are clavate and five jointed. 3. C. POSTICA.-Terminal segment of the body longest; posterior feet very short and robust. Inhabits Georgia and East Florida. My Cabinet. Body rufous, paler beneath, punctured; segment with two impressed, longitudinal lines above, and a deeply impressed one beneath; ultimate segment longer than the two preceding ones conjunctly, with two [113] obsolete, impressed, abbreviated lines at base, and an intermediate more distinct, continued one; posterior feet remarkably robust, hardly longer than the ultimate segment; nail very robust, as long as the two preceding joints conjunctly. A very remarkable species, distinguished at once from all others, by the very thick and short posterior pair of feet, the nails of which cross each other, and are much used by the animal in its defence. Genus GEOPHILUS. Posterior pair of feet not remarkably longer than the others; eyes obsolete. 1. G. RUBENS.-Body attenuated before and behind; terminal pair of feet hardly longer than the preceding pair. My Cabinet. Body broadest in the middle, impunctured, red, with short hairs, more numerous on the antennse and feet; segments with two longitudinal impressed lines, and a transverse acute one near the base of each; ultimate segment somewhat longer than the preceding, narrowed and rounded at tip; head beneath, with a blackish spot each side at the base of the mandibles, and another at base of the terminal joint; labium with a profound fissure, not dentated; antennae, terminal joint longer than the preceding ones, and of equal diameter, not attenuated; feet subequal. Very common in decaying wood, under stones, &c. [114] 2. G. ATTENUATUS.-Body attenuated from the head; posterior feet longer than the others. Inhabits the Southern States. Body broadest before and gradually attenuated to the tail; reddish-brown, with a few hairs; head and base of the mandibles 1821.] 32.ACADEMY OF NATURAL SCIENCES above punctured: antennae setaceo-filiform, with numerous short hairs; feet paler than the body; posterior ones longer than the others. Found under stones, &c. [From Vol. 2, part 2, 1822.] On a South American species of (Estrus which inhabits the human body. Read November 26th, 1822. Many of the objects of natural history described by Linn6 are at present, entirely unknown, notwithstanding the laborious and ardent researches that have been made, by a multitude of observers, since the time of the great reformer. This may be in part attributed to the great rarity of some of those objects, but it may be supposed to be more particularly due to his habitual manner of attempting to concentrate all the characters of a being, in the comprehensive significancy of a few words. This excessive conciseness, appears to have been intended to check or discountenance a continuation of the habit of voluminous description, so freely used by his predecessors; but with due deference to his vast and deserved reputation, be it said, that, in the attempt to introduce a necessary reformation in this respect, that great naturalist passed to the opposite extreme. In common with the greater number of naturalists of the present day, I have very often felt the inconvenience of this imaginary improvement'and real detriment in zoology, and heartily wish that brevity may be sacrificed to accuracy, as I am convinced that however desirable every describer may, and, indeed, ought to be, to represent the object before him in as few words as possible, he should, nevertheless, not hesitate to avail himself of as many expletives as will in all probability obviously distinguish his object [354] from others, regardless of the number of words that may be required for this purpose. It is to be regretted that some very distinguished zoologists, perceiving as they must this grand impediment to the determination of species, still, by their example, perpetuate and increase this grievance, considering it sufficient for them to add to a very laconic description, a reference to a cabinet in which the [Vol. II. OF PHILADELPHIA. 33 specimen may be inspected, by the comparatively few persons who have the opportunity. Now, although a reference to a cabinet specimen ought to be considered as the duty of the describer of every animal, plant or mineral, whenever such reference is at all possible, yet it nevertheless seems also indispensable, that a detailed description, including many characters, should at the same time be given for the information of the distant naturalist or traveller, in order that its utility may not be limited exclusively to our compatriots. Amongst a multitude of short and insufficient descriptions, or rather indications, we find in Turton's edition of the Systema Naturae, the following notice, translated from Gmelin, of the existence of a very remarkable insect. " (ESTRUS HOMINIS.-Body entirely brown. Inhabits South America. Linne ap. Pall. nord. Beytr. p. 157. Deposits its eggs under the skin, on the bellies of the natives; the larva, if it be disturbed, penetrates deeper and produces an ulcer which frequently becomes fatal." This insect, for the identifying of which we have [355] manifestly to depend almost entirely on the habitat, does not appear to have been observed by any succeeding writers since it was mentioned by its discoverer. Humboldt, however, when occupied with his highly interesting travels in South America, was struck with certain tumors that he sometimes observed to exist on the bodies of the natives of that country, and which he attributed to the concealed operations of the larva of an (Estrus; but as he had no opportunity of verifying this conjecture by satisfactory examination, he relied upon the form and appearance of the tumors, with a recollection, probably, of the description above quoted. Clarke, the best writer on this genus of insects, observes that the hominis is probably a spurious species, and he further states that it " is, perhaps, merely an accidental deposit of (E. bovis, in the human body, of which there are numerous instances."* So perfectly satisfied was Fabricius of the non-existence of the hominis as a distinct species, that ii his Systema Antliatorum he has taken no notice whatever of this name and description. * Rees' Cyclopedia, article Bots. 1822.] 3 34 ACADEMY OF NATURAL SCIENCES The most eminent of living entomologists, Mr. Latreille, observes* that neither of the authors who have mentioned this insect, saw it in its perfect state; he therefore thinks it probable, that the larvae to which they had reference, were those of the JMusca carnaria [356] of Linnaus, or some other analogous species; for, he adds, all the larvee of (Estrus known, live on quadrupeds of the order Herbivora and Rodentia. Now, although I have not seen the perfect insect, in question, yet my object in this paper is to show, by the aid I think of sufficient data, that there is an U(strus of South America which must be added to the catalogue of the foes of our kind, fully capable of a notable agency in augmenting the afflictions of humanity, and to prove that this species is altogether distinct from bovis, to which the ingenious Clark was disposed to refer it. A few days since, Dr. Harlan presented to me for examination, a small animal preserved in alcohol, that resembled, at first view, a parasitic worm, but, on a slight inspection, it became evident that it was no other than the larva of a species of (Estrus; he informed me that he had received it from Dr. Brick, who had extracted it from his own leg, during a journey in South America. Desc. The form of this larva is clavate, the posterior [anterior. -LEC.] moiety of the whole length being dilated and somewhat depressed; the segments of this portion are armed with transverse series of small, black, horny tubercles, dilated at their bases, near their tips rather suddenly diminishing to a filiform curved hook, pointing forwards with an acute termination; these series are six in number on the back and sides, placed in pairs, and three in number on the abdomen; near the posterior [anterior] termination of the body are [357] numerous minute tubercles of the same character with the others, excepting that they conform to no regular series; the anterior [posterior.-LEC.] moiety of the body is entirely glabrous, cylindrical, or rather elongate conic, of a much smaller diameter than the posterior [anterior] portion, and truncate at the tip; the lips at the posterior [anterior] termination of the body are short, and the intervening fissure of but little width. Total length eleven-twentieths; greatest width more than threetwentieths of an inch. * Nouveau Diet. d'Hist. Nat. article (Estre. [Vol. IT. OF PHILADELPHIA. 35 Cabinet of the Academy. Obs. From this description we may gather the facts, that the larva in question corresponds with that of (E. bovis in being destitute of hooks or holders at the mouth, but it widely differs in general form, as the larva of bovis is oblong-oval, hardly more narrowed at one end than at the other. The-appearance of the series of minute hooks which subserve the functions of feet, in the latter species; also are very different from that of the corresponding armature of this larva, the superior line of each double series being narrow, and seemingly composed of but a row of hooks, whilst the inferior line is much more dilated, and the hooks far more numerous than in the superior line; indeed, the series of hooks of the South American larva are more like those of the larvae of (E. equi and haemorrhoidalis, than those of the imperfect bovis or ovis. But independently of those considerations, the single character of the much attenuated form of the anterior [posterior] part of the body of this larva, at once and eminently distinguishes it from any [358] other yet known in this family; while at the same time, the above description, taken in conjunction with its habitat, forbids the supposition of its belonging to any other group, and will, I think, justify the restoration to its place in the system of the Linneean (Estrus honmnis. To which of Latreille's recently established genera it belongs, is at present impossible to determine, though, for the present, it may, perhaps, be not unsafe to refer it to the Cute[re]bra* of Clark. Since the above was read to the Academy, Dr. Harlan has furnished me with the following interesting extract of a letter, which he received from a gentleman from whose leg this larva was extracted:"After a very sultry day's march, and being very much fatigued, I went to bathe in the Chama, a small stream emptying in the lagoon of Maracaibo. Not long after coming out of the water, I received a sting from some insect, in the left leg, over the upper and fore part of the tibia; it was several days attended with a considerable degree of itching, but without any pain, and I continued on my journey some few days longer without experiencing much inconvenience, except during several periods of * Weidmann in a letter states to me his preference of the term Trypoderma for this genus. 1822.] 36 ACADEMY OF NATURAL SCIENCES perhaps two or three minutes continuance, when an acute pain came on suddenly, and was severe whilst it continued, and then as suddenly subsided. On my arrival, and during my continuance at Il. Rosaria de Cucuta, I walked [359] with difficulty; there was a considerable tumefaction over the tibia, which had the appearance of ordinary bile (phlegmon;) in the centre there was a small black speck; the usual applications were used without any success, and the tumor became more irritated and inflamed, and thus it remained for some days, attended at times with a most acute pain, which for a few minutes was almost intolerable. "In returning to Maracaibo, I had to descend the Cottatumba in an open boat, without any shelter, and being wet to the skin by the cold rains which fell every night, I suffered much, and was almost constantly tormented by the tumor, which became more painful at those particular periods than usual; during this passage, which lasted for twelve days, I was induced to scarify it, and had recourse to the usual topical applications, but without success. At times I imagined that I felt something moving, and suspected that there was something alive beneath the skin. "After my return to Maracaibo I became scarcely able to walk, and was, in a manner, confined to my quarters. In this situation I continued two weeks longer, the tumor having began to discharge, and without any diminution of the painful periods. " Being now nearly worried out, it occurred to me to try a poultice of tobacco, which was used for several nights, having previously scarified the tumor; during the day I frequently dusted it with ashes of segars: as an ingredient I used rum instead of water [360] in making the poultice. On the fourth morning after this remedy, I felt considerable relief, and on the fifth, with a forceps, I drew out the worm which you have now in your possession, and which was then dead. "In a few days the sore assumed a healthy look, and in ten days was perfectly healed up, although, at times, I yet experience a heavy pain in the part from whence the worm has been taken. It had travelled on the periosteum along the the tibia for at least two inches. The severe pain which I experienced from those periods, I attribute to the irritation of some of the branches of the nerves distributed to the parts by the worm in its progress. [Vol. II. OF PHILADELPHIA. 37 Respecting this worm there are different opinions among the Spaniards and Creoles. Ouche is the name it is called by some, who say it is produced by a worm which crawls on the body, from the ground, and penetrating the skin, increases in size. Others maintain that they are produced from the sting of a winged insect which they call Zancudo,* others again, call the insect Husano; for my part, I am rather inclined to think that they are produced from the sting of a winged insect, which deposits its egg. "N. B. Should it even be proved that the form of the anterior part of this larva is owing to the violence used in extracting it, of which there is no appearance, still it will stand as distinct from other known species." [The larva above described, is now supposed to be that of Cuterebra noxialis Goudot, for the characters of which see Annales de la Societe Entomologique de France, 2d series, 2, xli. For a detailed discussion of all the facts known on the subject of (Estri in the human body, consult Keferstein, fiber (Estrus hominis Verb. Zool. Botan. Vereins in Wien, 1856, 637. While travelling in Honduras, several of my companions were very much afflicted with similar larvae; they seem to infest particular portions of the body not usually exposed; the pectoral, dorsal and lumbar regions, the thighs and upper parts of the arm. When the eggs were deposited, was entirely unknown to the patients, none of them having ever observed a fly alight on the body; but from the position of the parasite, it is most probable that the eggs were laid while the patients were bathing. The effects of these intruders are very much exaggerated in the text; they produce a swelling, having the appearance of an ordinary boil, in which, at times, is felt, for a few seconds, an acute pain when the worm moves; the method of extraction is very simple, and but moderately painful. The tumor is held between the thumb and forefinger, a lighted segar is approached to the skin as near as the patient will permit, when the worm becomes restless, and the point of his body will be seen at a very minute orifice in the skin, not before obvious; the segar is immediately dropped, and with both hands the tumor is compressed violently; the worm is thus forced out, sometimes with * The word Zancudo is used by the South American Spaniards to denote several species of Culex.-S. 1822.] 38 ACADEMY OF NATURAL SCIENCES such velocity as to be projected several inches. No inflammation or discharge follows, but the sac immediately closes and heals. Sometimes the worm is so small as to resist this mode of extraction; a piece of tobacco leaf is then gummed over the tumor, (usually with an exudation from the skin of a plantain;) the worm dies in a few hours, and is then readily removed by squeezing the part. I have nothing to add to the description of the larva in the text, as emended by me, except to say that my specimens were regularly clavate, not at all depressed; the form mentioned above was perhaps owing to contraction, produced by the liquor in which the specimen was preserved. The figures given by Mr. Goudot are regularly oval, and not at all clavate. The name Gusano del Monte is commonly applied to the worms by the natives, while the insect is called Zancudo gusano; the word Zancudo means simply long legged, and it is difficult to understand how it could be applied to a species of Cuterebra. The natives assured me that the fly was frequently seen, that it was of a grey color, and resembled an ordinary mosquito, except in being larger. I imagine that some species of Tipula was meant. A similar superstition in the United States has conferred upon those harmless insects the fearful title of Gallinippers.-LEC.] [From Vol. 3, 1823.] Descriptions of Dipterous Insects of the United States. Read Dec. 24th, 1822. The dipterous insects, from which the following descriptions are drawn out, were chiefly collected by myself, during the late expedition to the Rocky Mountains under the command of Major Long, and patronage of Mr. Calhoun, the present Secretary of War. Of these insects, many appear to be common inhabitants of the United States, throughout the immense region included by the Rocky Mountains and the Atlantic ocean, between the parallels of latitude 350 and 41~ north; others are probably restricted to the Western States, and some were seen only in the vicinity of the Missouri river; along the base of the great northern Andes, where numbers of new and highly interesting animals and plants [Vol. III. OF PHILADELPHIA. 39 were for the first time detected by the party, interesting animals of the order under consideration were also collected. The specimens are in my cabinet. CULEX Linn. 1. C. PUNCTIPENNIS.-Body dark rufous, covered with cinereoferruginous hair; feet elongated; wings maculated. Inhabits the United States. Orbits, bright cinereous; eyes deep black; antennae and proboscis deep fuscous or blackish immaculate; thorax dark rufous, with obsolete blackish lines, and covered with cinereo-ferruginous hair; wings hairy, dusky, with a hardly perceptible pale band beyond the middle, and obsolete dusky spots; scutel glabrous, dark rufous, with a longitudinal bluish vitta; halteres yellow at base; feet elongated, deep fuscous or blackish; pectus each side above the posterior feet plumbeous. It is probable this is the species which Fabr. considers as the same with the pulicaris of Europe; it is common on the Mississippi, and troublesome to travellers. When the insect is at rest, the wings being incumbent, one on the other, the pale band is very distinct; when recent, the eyes are greenish-blue. I observed this species in considerable numbers on the Eastern shore of Maryland. The dusky spots on the wings of this species, are occasioned by the thicker growth of hair in those parts. [Belongs to Anopheles: Wiedemann has changed the name to A. crucians.-SACKEN.] 2. C. 5-FASCIATUS.-Body clothed with cinereous hair; abdomen annulate with blackish. Inhabits the Western States. Eyes deep black; antennae fuscous, region of the base paler; proboscis black; thorax with a dilated dorsal fuscous vitta; pectus each side varied with blackish; halteres entirely whitish; scutel glabrous; wings with dusky nervures, immaculate; feet moderate, fuscous; thighs whitish; abdomen cinereous; tergum with five black, broad fasciae; tail black above. [11] Length about one-fifth of an inch; proboscis one-tenth of an inch. This is an exceedingly numerous and troublesome species We found them in great numbers on the Mississippi in May and 1823.] 40 ACADEMY OF NATURAL SCIENCES June. The hairy covering is very deciduous, and when an individual is caught by hand, the back of the thorax, in consequence of being denuded by the touch, exhibits the dorsal vittae of a blackish color confluent at the base, with an oval black spot on each side. The abdominal annuli are sometimes fuscous or even light brown. Legs much shorter than those of the preceding species, but like them in not being annulated. [Also an Anopheles: Wiedemann has named it A. ferruginosus.-SACKEN.] 2. C. DAMNOSUS.-Rostrum and tarsi annulate with white. Inhabits Pennsylvania. Head above with rather long yellow-ferruginous hair; antennae pale-brownish; rostrum blackish; with a broad white band on the middle; thorax black, with three cinereous lines, and clothed with yellow-ferruginous short hair; scutel dull testaceous; pleura grayish; feet pale, covered with blackish hairs; joints of the tarsi, excepting the first, whitish at their bases; tergum brown, basal margins of the segments cinereous-whitish. Length a quarter of an inch. This is one of the most common and troublesome of our mosquitoes. It seems to correspond in some degree with the cingulatus Fabr., although we must infer from his description, that the posterior tarsi [12] only are annulated. Wiedemann considers the cingulatus as the male of his molestus, of which all the tarsi are annulated, like those of our species. I feel, however, perfect confidence in the description of Wiedemann, and therefore must consider our species distinct, inasmuch as the thorax is not " lateribusque niveis;" and from the laudable accuracy of that author, I cannot suppose that he would have overlooked the annulation of the proboscis, which certainly exists in this species. [Wiedemann has changed the name to C. teniorhynchus.SACKEN.] 4. C. TRISERIATUS.-Anterior margin of the wings fuscous; tergum with white spots on each side. Inhabits Pennsylvania. Body brown; stethidium livid-brown; thorax with white hair each side; pleura with two spots of white hair; feet pale, covered [Vol. III. OF PHILADELPHIA. 41 with dusky hair; thighs naked, blackish above near the tip; tergum with a triangular white spot at the base of each segment on each side; each of these spots extends upon the venter in the form of a band, interrupted each side of the middle; thus forming three spots on each series upon that part, the middle ones of which are almost connected into a longitudinal line. Length one-fifth of an inch. i. The white spots contrast strongly with the brown color of the abdomen. CHIRONOMUS Meig. Wied. 1. C. LOBIFERUS.-Segments of the abdomen with a lobe at their bases. [13] Inhabits the United States. Antennae yellowish-brown; thorax pale-cinereous, the three lines testaceous; scutel and metathorax testaceous; wings white, with a brownish obsolete point near the middle; pectus testaceous; feet pale yellowish; tergum somewhat glaucous, the segments with their bases and obsolete longitudinal line black; on the middle of the base of the second, third, fourth and fifth segments is a small longitudinally oval, slightly elevated lobe, extending nearly one-third the length of the segment. Length three-tenths of an inch. [Wiedemann has altered the name to C. lobi/er.-SACKEN.] 2. C. FESTIVUS.-Body pale, when recent light green; pectus, three thoracic lines and scutel testaceous; wings white. Inhabits the United States. Body pale yellowish-brown, when recent, pale-green; head at base of the antennae testaceous; antennae light brown; eyes deep black; thorax trilineate with testaceous; scutel testaceous; wings white, immaculate; pectus testaceous between the two anterior pairs of feet; feet pale, hairy; thighs green; tarsi dusky at the incisures; anteriors nearly naked, with hairy tarsi; abdomen, second, third, fourth and fifth segments tipped with blackish above. Length of female, seven-twentieths of an inch. Observed particularly in the State of Illinois. 3. C. MODESTUS.-Stethidium yellowish, abdomen pea-green. Inhabits Pennsylvania. [ 14] 1823.] 42 ACADEMY OF NATURAL SCIENCES Eyes black; antennae, shaft brown, whitish at base; humerus, scutel, and intervals between the dilated lines of the thorax pale; wings immaculate, costal edge near the tip somewhat dusky; feet greenish-white, anterior tibia and the tarsi dusky. Length one-fifth of an inch. %. 4. C. GEMINATUS.-Thorax fuscous; pleura gray; abdomen white, annulate with black. Inhabits Pennsylvania. Humerus gray, the color being a continuation of that of the pleura; pectus livid; feet white; thighs blackish, pale at base; tibia at base and tip, and tarsi at tip fuscous; abdomen with three broad double bands, formed thus: second segment fuscous with the exception of the posterior margin, third segment fuscous on the basal margin, fourth segment fuscous excepting the posterior edge, fifth segment fuscous on the basal half, sixth and seventh segments entirely fuscous. Length three-twentieths of an inch. 5. C. LINEATUS.-Wings white; stethidium yellowish testaceous, a fuscous longitudinal line on the anterior dilated line. Inhabits Pennsylvania. Thorax pale-greenish, the dilated lines yellowish testaceous, a longitudinal narrow line very distinct and fuscous on the anterior dilated line, and green rather obsolete behind; scutel pale; wings immaculate; feet whitish, incisures of the knees of the intermediate and posterior feet brown; tergum greenish, posterior margins of the incisures dusky. [15 Length 9 nearly three-tenths of an inch. [Wiedemann has changed this into C. lineola.-SACKEN.] C. STIGMATERUS.-Tergum pale, towards the tip glaucous. Inhabits the United States. Antennae pale yellowish-brown; thorax pale cinereous, the lines very pale testaceous, sometimes tinged with dusky; scutel yellowish; metathorax reddish-brown; wings white with a fuscous sub-central stigma; pectus testaceous; feet pale-yellowish; tergum, basal segments pale reddish-brown with whitish tips, terminal segments somewhat glaucous. Length three-tenths of an inch. S. [This has been changed by Wiedemann into C. glaucurus.SACKEN.] [Vol. III. OF PHILADELPHIA. 43 TANYPUS Meig. 1. T. ANNULATUS.-Tergum annulate with dusky; wings clouded with dusky and with three or four blackish points. Inhabits Pennsylvania. Head and stethidium red-brown; thorax, the anterior dilated line with a brown line along its middle; feet white, thighs having an annulus near the tip, and tibia with one at base and two near the tip fuscous; wings with large obsolete dusky spots or clouds, and three or four black-brown points, of which two are towards the middle of the wing, and the remainder on the costal margin near the tip; tergum, segments with a dusky annulus at their bases. Length about three-twentieths of an inch. $. 2. T. TIBIALIS.-Thorax reddish-brown; tibia white [16] at base; abdomen white, a double band on the middle and tip black. Inhabits Pennsylvania. Wings immaculate; poisers white; feet fuscous, basal half of the tibia white; tergum, second joint with a spot each side, two middle segments with each a band, of which the anterior one is much broader, and terminal segments deep fuscous; pleura yellowish. Length T more than one-twentieth of an inch. CORETHRA Meig. C. PUNCTIPENNIS.-Whitish; wings and feet punctured with fuscous. Inhabits Pennsylvania. Hair of the antennae yellowish-white, the centres of the whorls being fuscous, the shaft of the antennae has a decidedly annulated appearance; eyes black; thorax with three pale yellowish-brown abbreviated broad lines, the middle one originating before and terminating at the centre of the disk, the lateral ones originating rather before the middle; feet with numerous small brown punctures; wings with many very obvious brown spots. Size of C. culiciformis Degeer, Meig. MYCETOPHILA Meig. M. ICHNEUMONEA.-Pale yellowish-brown; wings with a fuscous spot; tergum dusky above. [17] Inhabits Pennsylvania. 1823.] 44 ACADEMY OF NATURAL SCIENCES Head tinged with rufous; eyes black; thorax a little hairy, immaculate; feet whitish; tarsi dusky; wings pellucid, nervures pale brown, a fuscous spot on the connecting nervures; abdomen fusiform, somewhat compressed, second, third and fourth segments, particularly the former, reddish-brown above. Length three-twentieths of an inch. This belongs to Meigen's first division of the genus. CAMPYLOMYZA Meig. Wied. C. SCUTELLATA.-Black, scutel testaceous; feet yellowish; wings hyaline, nervures at the base, pale-yellowish; poisers yellowish. Inhabits Missouri. Length nearly one-twentieth of an inch. ERIOPTERA Meig. E. CALIPTERA.-Wings fuscOus spotted with white: intermediate and posterior thighs biannulate with black. Inhabits Missouri. Body pale yellowish; thorax with two fuscous lines above, and one on each side before the wings; wings dark brown, about thirteen spots arranged along the margins, and numerous somewhat smaller ones on the disk, white; nervures hairy; anterior [18] thighs with a blackish line near the tip; intermediate and posterior thighs with an annulus on the middle and another near the tip, blackish; abdomen tinged with brownish, a darker dorsal line and longitudinal incisures. Length more than three-twentieths of an inch. [Wiedemann has altered this to E. caloptera.-SACKEN.] CTENOPHORA Meig. 1. C. FULIGINOSA.-Dusky, wings spotted with white; abdomen lineate with yellow. Inhabits Missouri. Body dark brown; thorax lineate with yellowish before; wings fuliginous, with about three white spots on the anterior margin. and a transverse oblique one on the disk attaining the thinner margin; feet short, pale testaceous, tips of the thighs and of the tibia and tarsi blackish; tergum fuscous, with two dilated yellow [Vol. III. OF PHILADELPHIA. 45 lines; venter yellow, obsolete central vitta and posterior margins of the segments, blackish. Length about seven-tenths of an inch. 2. C. ABDOMINALIS.-Abdomen bright fulvous, margined with black; wings spotted with fuscous. Inhabits Pennsylvania. Head dull yellowish; rostrum, palpi, and antennae, dark fuscous: front with a transverse black line at the base of the antennse, and another each side from the antennae to the rostrum; occiput dusky; thorax cinereous, a double black longitudinal line abbreviated behind, and three black spots on each [19] side, whereof two are oblong, and the intermediate one subquadrate; collar pale, with three black spots; scutel dirty yellowish, an oblique black spot on each side of it; pleura gray, with a longitudinal vitta from the head to the abdomen; wings with four fuscous spots on the costal margin, and a minute one beyond the carpus; nervures fuscous, slightly margined, the middle furcate one submargined with white, costal margin between the spots white, posterior margin from the ultimate nervure to the apex with alternate fuscous and white spots; tergum bright fulvous, basal and apical segments, and a wide lateral vitta, black; venter paler fulvous, posterior segments shaded with dusky, and with a longitudinal black line; feet black, a white annulus at base of the tibia; thighs pale with a black annulus at tip. Length one and a half inches. This is one of our largest and finest species of Linnean Tipula. LIMNOBIA Meig. 1. L. FASCIAPENNIS.-Wings white, with four fuscous marbled bands; feet pale, blackish at the tips of the thighs. Inhabits the United States. Body above rufo-cinereous; eyes deep black; antennae fuscous, first and second joints black, third and fourth, yellowish; palpi black; wings white, [20] with about four, much dilated, marbled, dark brown bands, of which one is terminal, and one elongated to the base, a small costal spot between the second and third bands; halteres dusky, capitulum white; feet pale rufous, thighs tipped with fuscous; abdomen, segmentswith an obsolete, 1823.] 46 ACADEMY OF NATURAL SCIENCES brown, cruciate mark on each, of which the transverse line is black. Length of female, three-fifths of an inch, male rather shorter. This species occurs not unfrequently on the banks of the Mississippi. The nervures of the wings correspond with those of the wing represented on tab. 6, fig. 4, of Meigen's descriptions of European Diptera. 2. L. MACROCERA.-Blackish-piceous, polished; wing threespotted; antenna longer than the body. Inhabits East Florida. Rostrum, first and second joints of the antennae, and the inferior portion of the front, yellowish; vertex piceous; antennae hairy on all their length, third and fourth joints with a small vertical spine at tip; halteres and feet yellowish-white; thighs and tibia at tip dusky; wings with three large fuscous spots, of which one is near the base, the second on the middle of the costal margin not attaining to the edge, and the third forms nearly a band across on the connecting nervures: abdomen less intensely colored than the thorax, the three or four middle segments pale-yellowish at base. Length three-tenths of an inch. The disposition of the wing nervures differs from [21] any of those represented by Meigen, but they are more like those of fig. 7, pi. 5, than any of the others. 3. L. TENUIPES.-Thorax livid; humerus yellowish; wings dusky. Inhabits Pennsylvania. Antennae long, blackish; vertex fuscous; thorax livid; humerus reddish-yellow; nervures arranged as in Meigen's fig. 2, pi. 6; pleurae and pectus reddish-yellow; feet long and slender, blackish, pale at base; tergum brownish-livid, segments on their posterior margins somewhat darker; abdomen whitish. Length two-fifths of an inch. This species may be found in plenty during the autumn at Harrowgate, in humid situations, in company with T. flavic.am Fabr. [This species is united with L. humeralis, below, by Wiedemann, as one species, under the name L. humeralis. —SACKEN.] [Vol. III. OF PHILADELPHIA. 47 4. L. CINCTIPES.-Yellowish; wings varied with dusky; thighs bifasciate beyond the middle. Inhabits Missouri. Body pale-yellowish; thorax trilineate with black, intermediate line double, terminating at the central incisure; lateral lines interrupted before, and continued posteriorly to their union at the base of the tergum; wings varied with blackish; four distant spots on the costal margin, of which the terminal one is semi-circular and the penultimate one is continued in a very irregular band towards the thinner margin; thinner margin with about four much diluted spots, the terminal one being continued as a band across the tip; abdomen yellow, somewhat varied with [ 22 black: thighs with two black annulations beyond the middle. Length about half an inch. The nervures of the wings agree with those of Meigen's fig. 5 of tab. 6, excepting that there are three nervures on the costal margin as in his figures 5, 7 and 8 of tab. 5. 5. L. HUMERALIS.-Dusky, beneath pale; wings hyaline immaculate. Inhabits Pennsylvania. Antennae fuscous, first joint and rostrum dull-yellowish; front and vertex dull cinereous; thorax dark livid; humerus, two obsolete lines, and lateral margin as far as the wings, yellowish; pleura and pectus pale yellow; scutel and metathorax color of the thorax; nervures dark brown, corresponding in arrangement with Meigen's fig. 2, pl. 6; feet dark brown; tergum dull-yellowish. with a black line; venter white. Length two-fifths of an inch. $. 6. L. ROSTRATA.-Feet elongated; wings spotted; rostrum nearly three times as long as the head. Inhabits Pennsylvania and Maryland. Antennae, rostrum and vertex fuscous; thorax cinereous, trilineate with fuscous, the intermediate line abbreviated behind, and the lateral ones abbreviated before; wings with five fuscous sub-equal spots on the costal margin, the penultimate one rather largest, and a spot at each termination of a nervure at the inner [ 23] margin and apex, the connecting nervures also are margined with fuscous; feet pale. Length one quarter of an inch. 9. 1823.] 48 ACADEMY OF NATURAL SCIENCES On flowers: this species resembles L. longirostris Wied. in the form of the rostrum and the arrangement of the nervures, and with that insect it seems entitled to be separated from Limnobia as a distinct genus. [Belongs to Aporosa Macq.-SACKEN.] TIPULA Linn. Meig. 1. T. CUNCTANS.-Wings with a fuscous costal margin: tergum with a dusky line. Inhabits Pennsylvania. Rostrum, mouth and base of the antennae pale reddish-yellow, flagellum dusky; front and vertex cinereous; collar pale, with a. dusky line; thorax brown, two pale distant lines on the disk, confluent behind, and another on each side passing over the wings; wings dusky; nervures fuscous; the fuscous costal margin is interrupted near the stigma, by an obsolete, pale spot; poisers dusky, stipes yellowish; feet blackish; thighs and tibia, paler at base; pleura gray; abdomen, pale brownish-yellow, with a distinct dusky line on the tergum, the segments of which are also margined behind with dusky. Length four-fifths of an inch. Arrangement of the nervures like that of the preceding species 2. T. COSTALIS.-Wings with a fuscous costal margin; [24] antenna annulate; segments of the tergum with an interrupted transverse line. Inhabits Pennsylvania and Maryland. Head cinereous; rostrum and antennae yellowish, segments of the latter, excepting the three basal ones, fuscous at base; thorax yellowish brown, with a darker line; scutel and metathorax pale; pleura whitish; feet dull yellowish-brown; wings with a brown costal margin extending to the extremity of the carpus; tergum light yellow-brown, segments with a fuscous posterior margin, and two linear spots placed in a line transversely. Length three-fifths of an inch. The arrangement of the nervures of the wings is nearly similar to that of Meigen's fig. 9 of pl. 6. 3. T. MACROCERA.-Pale-yellowish; antenna elongated. Inhabits Pennsylvania. Inferior longitudinal half of the rostrum, reddish-brown; palpi [Vol. III. OF PHILADELPHIA. 49 dusky; antennae twice the length of the head and thorax, second joint very small, third joint as long as as the fourth and fifth taken together, the remaining joints a little dusky, dilated at their bases, and somewhat excavated in their middles; wings immaculate; nervures, stigma and interstice of the first and second nervures, dull-yellowish; feet pale-brownish; abdomen somewhat darker than the thorax, with three series of black dots, one lateral, and one ventral; pleura and pectus whitish yellow. [25] Length half an inch. The antennae by their length, the second and third joints, and the form of those of the flagellum, show an alliance with the genus Nephrotoma, but as they have but thirteen joints, the insect must be regarded as a Tipula. 4. T. COLLARIS.-Thorax blued-black, lineate with yellow; tergum yellow with blackish bands. Inhabits Pennsylvania. Head fulvous; antennae, first and second joints, rather paler than the head; palpi fuscous, pale at base; occiput black: thorax blued-black, the collar, two lines each side confluent before and behind, scutel and metathorax, bright yellow, the latter with two confluent blued-black spots at tip; poisers brown, tip of the capitulum yellowish; wings with a brown stigma, nervures brown, differing in arrangement from those of the preceding species and from those figured by Meigen: feet brown, basal portion of the thighs pale; tergum yellow, segments black-brown on their posterior half; venter pale-yellow, segments dusky on their posterior half with a silvery reflection. Length a little less than half an inch. 5. T. ANNULATA.-A dark brown stigma; abdomen pale, annulate with black. Inhabits Pennsylvania. Antennae fuscous, first and second joints whitish; rostrum, and lower portion of the front whitish; vertex and occiput dusky; palpi fuscous; thorax yellowish-brown, [26] the indented lines paler; metathorax light livid; wings with a brown stigmata, nervures brown, arranged like those of Meigen's fig. 9, pl. 6; feet dusky-brownish; abdomen yellowish-white, incisures and their margins black, forming annulations complete. 1823.] 3 50 ACADEMY OF NATURAL SCIENCES Length two-fifths of an inch. 6. T. TRIVITTATA.-Wings four-banded with fuscous; tergum yellow with a dorsal and lateral fuscous vitta. Inhabits Pennsylvania. Head dusky; front, rostrum, and base of the antennae pale; thorax whitish-cinereous, lineate with light brown, the lines double; collar with a brown line, and lateral dusky spot; scutel and metathorax with a brown line; pleura and pectus gray; poisers whitish, capitulum brown; wings with fuscous margined nervures, fuscous bands and white areolae, between the first and second band is a semi-band on the thinner margin, second band enclosing a white spot on the costal margin; feet dusky; tergum with a longitudinal fuscous line, segments with lateral fuscous triangles and a dorsal transverse abbreviated dorsal line near the middle of each. Length one inch. Nervures resembling those of the preceding species. SCIOPHILA Hoff. S. FASCIATA.-Pale-yellowish; thorax trilineate; tergum fasciate with fuscous. [27] Inhabits Pennsylvania and Maryland. Antennae at tip, and vertex fuscous; thorax with a double light-brown middle line attenuated and abbreviated behind, a dark chestnut dilated line on each side abbreviated before, and a small obsolete one above the origin of the wings; pleura with a dusky spot over the insertion of each foot, placed triangularly, the inferior one itself triangular; tibiae and tarsi a little dusky; segments of the tergum fuscous on their posterior margins. Length rather more than one-fifth of an inch. RYPHUS Latr. Meig. 1. R. MARGINATUS.-Wings spotted; thorax trilineate with rufous. Inhabits Pennsylvania. Head dull reddish-brown; vertex blackish; thorax cinereous, with three rufous lines, of which the middle one is abbreviated'behind, and the lateral ones are abbreviated before; wings with [Vol. III. OF PHILADELPHIA. 51 three brownish spots on the costal margin; feet whitish, joints a little dusky; tergum blackish at tip, pale at base. Length less than one-fifth of an inch. The number, form and position of the wing spots, are similar to those of Sciara punctata, Fabr., it differs, however, from that insect, in addition to other peculiarities, by the color of the thoracic lineations. 2. R. ALTERNATUS.-Costal margin of the w ing beyond [28] the middle with three fuscous spots alternating with white ones. Inhabits Pennsylvania. Body blackish-fuscous; thorax with three black lines, of which the intermediate one is double; feet short; wings hyaline, connecting nervures slightly margined with fuscous spots on the costal margin, placed one on the middle of the length, then a white one which is very conspicuous on the edge of the wing, then a brown one,.then another white one divided into two compartments by a nervure, then a third brown one terminated at the tip of the wing by a third white spot. Length to the tip of the wings a quarter of an inch. The habit differs from that of the other species I have seen. SIMULIUM Latr. S. VENUSTUM.-Black; thorax, two perlaceous spots before, and a larger one behind; poisers black, capitulum bright yellow, dilated. Inhabits Shippingsport. Body black; wings whitish, with yellow, andiridescent reflexions. Male, eyes very large, separated only by a simple line, dull reddish yellow, inferior half black; thorax velvet-black, a bright oblique, perlaceous, dilated line each side -before, and a large perlaceous [29] spot or band behind; sides beneath varied with perlaceous; feet, tibia above, and first joint of the four posterior tarsi, white; abdomen with an oblique perlaceous line at base, and two approximate, lateral, perlaceous ones near the tip. Female.-Eyes moderate; thorax plumbeous-black, immaculate; scutel black: abdomen whitish beneath. This very pretty species, perched in considerable numbers on our boat at Shippingsport, Falls of the Ohio. It ran with con1823.] 52 ACADEMY OF NATURAL SCIENCES siderable rapidity, constantly advancing its long anterior feet. Its bite is pungent. BERIS Latr. Meig. B. FUSCITARSIS.-Thorax piceous-black, polished; tergum reddish-brown, inclining to yellowish on the disk, and with brown incisures, Inhabits Pennsylvania. Wing hyaline with a pale-brown stigma and nervures, origin yellowish-white; thorax with the posterior angles piceous; feet, anterior and intermediate pairs yellowish-white; tarsi, excepting the base of the first joint, fuscous, posterior pair reddish-brown, first joint of the tarsi yellowish-white. Length one-fifth of an inch. The scutel of my specimen is wanting; I cannot, therefore, ascertain its number of spines. NEMOLETUS Geoff. Latr. Meig. N. PALLIPES. —Greenish-black, thorax tinged with green; nervures whitish. [303 Inhabits Pennsylvania. Rostelliform process blued-black, polished; antenna brown, situate at the base of the rostelliform process; front with a triangular white spot above the antennae; thorax punctured, a testaceous line before the wings, and another each side on the basal edge; poisers and scale pure yellow-white; costal nervures whitish; feet yellowish, base of the thighs and middle of the posterior edges of the segments of the venter rufous. Length three-twentieths of an inch. L. XYLOPHAGUS Meig. X. TRIANGULARIS. —Black, sub-glabrous; thorax plumbeotu with a black line; feet testaceous. Inhabits Missouri. Body black; head pale plumbeous; antenna and palpi black; proboscis pale rufous; trunk black polished; thorax, disk pale plumbeous, with a longitudinal polished black line, gradually and slightly dilating behind; nervures fuscous; halteres white; feet testaceous, tips of the tarsi and of the posterior thighs and [Vol. III. OF PHILADELPHIA. 53 tibia dusky; tergum polished, with a large opaque triangle at the base of each segment excepting the first. Length two-fifths of an inch. The nervures of the wings are arranged in a similar manner with those of X. ater Fab. Meig. [31 PANGONIA Latr. P. INCISURALIS. [Ante vol. 1, p. 75.] TABANUS L. Latr. T. MOLESTUS.-Thorax cinereous, lineate with fuscous; scutel cinereous; abdomen black-brown, a dilated dorsal vitta. Inhabits Missouri. A frontal, blackish-brown, glabrous, oblong callus, with a dilated obscurely rufous glabrous line above, terminating in a smaller dilatation; antennae black; proboscis black; palpi testaceous; thorax [32] cinereous, with four reddish-brown lines; wings dusky, nervures dark-brown, blackish towards the tip, a black carpal line, and a slight anastomosis; scutel cinereous; pectus pubescent, cinereous; feet black, tibia obscure ferruginous; tergum black, a dilated, cinereous, dorsal vitta, consisting of dilated triangular spots on the third, fourth, fifth and sixth segments, the larger ones before; incisures cinereous. Length less than four-fifths of an inch. This is one of the species which are called prairie flies; it is numerous in the prairies of the State of Missouri, and is very troublesome to the cattle. I have seen cattle in the forests which margin the prairies, when attacked by these insects, start suddenly and plunge into the thickets, that the branches may divest them of their enemies. Travellers are much incommoded by them; many cover their horses with canvas, &c., to shield them from their attacks, or rest in some shaded or secluded situation, during that part of the day when they are most abundant. 2. T. ANNULATUS.-Thorax cinereous-plumbeous; wings immaculate; tergum blackish; incisures cinereous; tibia white. Inhabits Missouri. Body somewhat pubescent; head beneath cinereous downy; antenna rufous; palpi white; proboscis black at tip; thorax cinereo-pluinbeous, testaceous in the middle, and clothed with 1823.] 5: ACADEMY OF NATURAL SCIENCES short prostrate hairs; pectus color of the thorax, downy; feet dusky; tibia white with the exception of the [33 ] tips; wings slightly dusky, immaculate, nervures brownish, immarginate; abdomen blackish-brown, incisures cinereous. Length of the body more than two-fifths of an inch. Smaller than T. lineola. 3. T. STYGIUS.-Violet-black; thorax pale chestnut. Inhabits Arkansa. Hypostoma and front dirty yellowish; antenna and palpi black, callous of the front quadrate, chestnut, with a simple slightly dilated line above; thorax with five cinereous lines; scutel pale chestnut; wings ferruginous, with three fuscous spots, abdomen immaculate; tibia dull chestnut at base. Length nearly nine-tenths of an inch. CHRYSOPS Meig. Latr. C. QUADRIVITTATUS.-Cinereous; tergum with four series of brown lines. Inhabits near the Rocky Mountains. Length to the tip of the abdomen nearly two-fifths of an inch. Body cinereous; head with three black frontal spots placed in a transverse series, the intermediate one smallest, and a larger black spot above the antennae; antennae dark reddish-brown, terminal joint black at tip; thorax blackish, with five narrow, cinereous lines; wings with a large costal spot, anastomosis and obsolete spots fuscous; feet yellowish-brown, [34] tips of the tibia and of the tarsal joints black; tergum with four series of fuscous abbreviated lines, the two dorsal series approximate, the lateral ones distant, between the dorsal series tinged with yellowish-brown. LEPTIS Fab. Meig. 1, L. ORNATA. [Ante vol. 1, p. 26.] Length % nine-twentieths of an inch. This species resembles L. thoracica Fabr., but the wings are not obscure as those of that species; the thighs as well as the tibia are pale, the bands of the tergum are much broader, the thoracic hair differently colored, and the hypostoma and front are covered with silvery hair. [Vol. III. OF PHILADELPHIA. 55 2. L. PUNCTIPENNIS.-Blackish; wings spotted; abdomen pale at base. [35] Inhabits Pennsylvania. Hypostoma dark cinereous, with a fringe of long hair each side; antenns, palpi and rostrum black; vertex blackish-fuscous; stethidium black; thorax varied with cinereous lines; pleura, pectus and coxae dark cinereous; feet pale brownish, thighs more dusky; poisers yellowish white; wings hyaline, tip margin, connecting nervures, margin of the nervures near the thinner edge of the wing, costal margin ending in a carpal spot, fuscous; tergum, four basal segments pale-yellowish, with a dusky basal margin and triangular spot, remaining segments black. Length S more than one-fifth of an inch. 3. L. QUADRATA.-Pale yellowish; thorax lineated; abdomen asciated; wings with a large spot. Inhabits the United States. Body pale-yellowish; head very slightly tinged with plumbeous, excepting the antennas and mouth; thorax with three dilated longitudinal brown lines, of which the lateral ones are interrupted; scutel immaculate; wings whitish, with a brown subquadrate spot, extending from the margin to the centre of the wing, and from near the anterior inner angle of the spot an oblique brown line extends to the thinner margin, nervures brown, white at base; pectus and feet immaculate; tergum with a black band at the base of each segment; halteres with a dusky capitulum. Length to the tip of the wings more than seven-twentieths of an inch. [36] This insect is most closely allied to the Atherix oculata Fab. It occurs in Pennsylvania as well as in the State of Missouri. 4. L. BASILARIS.-Blackish-fuscous; wings hyaline, base or neck only fuscous. Inhabits Pennsylvania. Hypostoma in a particular light cinereous; antennae dark testaceous; thorax and scutel with scattering golden-yellow hairs; pectus and pleura brown; feet white, thighs at base and tips of the tarsi brown; tergum on the posterior margins of the basal segments with yellow hair; venter immaculate, paler at base; 9 head cinereous, vertex and occiput spotted with black. 1823.] 56 ACADEMY OF NATURAL SCIENCES Length v one-fifth of an inch. S rather less. The nervures of the wings are disposed as in Meigen's second division. 5. L. RTJFITHORAX.-Yellowish-testaceous; wings dusky; tergum with a series of black spots. Inhabits Pennsylvania. Antennae dull testaceous, terminal joint black; labia fuscous; thorax in a particular light with two dusky obsolete lines; poisers fuscous; wings fuliginous, particularly on the costal edge, the antepenultimate nervure uniting with the preceding one before it attains to the inner edge of the wing; tibia and tarsi dusky, hind feet elongated, tibia and tip of the thighs above blackish, the tarsi paler; tergum [37] with a longitudinal fusiform black line on each segment, those on the two basal segments rounded and central, posterior segments blackish on their basal margins. Length two-fifths of an inch. Belongs to Meigen's first division. 6. L. FUMIPENNIS.-Wings dusky; tergum brown, annulate with pale testaceous. Inhabits Pennsylvania. Hypostoma cinereous; globular prominence, proboscis and antenne yellowish; thorax fuscous, posterior edge dull testaceous; scutel pale testaceous, fuscous at base; wings, inner and terminal margins hyaline; poisers brown; scapus whitish; feet white; pleura and pectus yellowish-testaceous; tergum fuscous, segments yellowish testaceous on their posterior margins; venter yellowish. Length rather more than one-fifth of an inch. Belongs to Meigen's second tribe. 7. L. FASCIATA. [Ante, vol. 1, p. 28.] 8. L. VERTEBATA. [Ante, vol. 1, p. 27.] [38] 9. L. ALBICORNIS. [Ante, vol. 1, p. 27.] 139] 10. L. PLUMBEA.-Blackish-plumbeous; wings clouded; poisers pale-yellow. Inhabits Pennsylvania. Thorax brown, with five obsolete cinereous lines; wings with a fuscous costal margin, and four dusky arquated bands which do not attain the inner margin, the terminal one is obsolete and [Vol. III. OF PHILADELPHIA. 57 the basal one very short and also obsolete; feet reddish-brown, tibia pale. Length a quarter of an inch nearly. Nervures of the wings as in albicornis. THEREVA Meig. 1. T. TERGIS[SA].-Wings spotted; tergum silvery pruinose. Inhabits East Florida. Body blackish; head blackish-brown, with white hair beneath; antennae, basal joint cinereous with black hair; palpi pale; proboscis dusky; thorax [40] blackish-brown; wings slightly tinged with brownish, and with several brown spots, and brown stigma; feet pale, dusky at the joints; tergum dull testaceous, darker at base, and with a bright silvery reflection in a certain position, posterior margins of the segments white. Length more than seven-twentieths of an inch. The reflected color of the tergum is very similar to that of Musca anilis Linn. It seems to be closely allied to T. pictipennis Wied., but is larger, destitute of bands on the wings, and the color of the antennae, feet, &c. is different. [Changed to T. corrusca by Wiedemann.-SACKEN.] 2. T. NIGRA.-Black; incisures of the tergum and lateral spot on the fifth segment gray. Inhabits Pennsylvania. Head glabrous, polished; hypostoma and all beneath, with gray minute hair; antennae with minute gray hair, and longer sparse black hair on the basal joint; occiput velvet black; wings pellucid, stigmata and nervures brown, costal edge beyond the stigmata pale, each of the two ultimate pairs of nervures uniting before they attain the edge of the wing; poisers brown; scapus pale; pleura, pectus and coxae somewhat glaucous; feet blackish, tibia and tarsi excepting at tip pale, anterior tibia at tip and tarsi blackish; tergum polished, posterior edges of the third or fourth basal segments gray, spot each side of the fifth segment oblongoval oblique. Length three-tenths of an inch. [41 ] 1823.] 58 ACADEMY OF NATURAL SCIENCES STYGIA Meig. 8. ELONGATA.-Blackish, polished; abdomen elongated, incisures yellowish. Inhabits Pennsylvania. Antennae yellowish-white, the third joint dark fuscous, not longer than the preceding joint, but terminated by an elongated style, the second joint is somewhat more robust than the first, which last is not remarkably dilated at tip, neither is it perceptibly obliquely truncated; occiput plumbeous; thorax piceousblack; humerus with a dull rufous spot, which is continued by a curved line to the origin of the wings; pleura with a silvery line; wings hyaline, nervures brown; poisers yellowish-white; feet including the coxae white, tarsi dusky; abdomen elongated, depressed; tergum blackish-brown, darker towards the tip, first segment yellowish at base and tip, second segment yellowish on the posterior margin, the two succeeding segments with a spot on each side at tip, terminal segments immaculate; venter with more of the yellowish color than the black. Length rather more than three-tenths of an inch. The third nervure of the costal margin is much less distant from the second, than the corresponding nervures of S. sabsea Meig., and the first basal cellule is much less elongated, and the superior branch of the apical fork is much less arquated than in that insect. [Wiedemann removes this species to Lomatia, adding at the same time that it probably belongs to some other genus. -SACKEN.] [42] ANTHRAX Latr. 1. A. MORIOIDES.-Black, with numerous ferruginous hairs; wings deep black with white at tip. Inhabits the United States. Body black, covered with short prostrate ferruginous hair on the sides of the stethidium; eyes chestnut-brown, widely emarginate behind; wings deep black, opaque, posterior margin from near the tip to the inner angle hyaline white, black portion occupying nearly two-thirds of the wing, and deeply dentate at tip, an obsolete hyaline spot near the base, about three in the middle [Vol. III. OF PHILADELPHIA. 59 placed transversely, and one near the tip of the opaque portion; poisers pale; capitulum black beneath, and near the tip above; feet pale, tarsi and anterior thighs dusky: tergum with silvery hairs each side at base, and each side near the tip. Length three-tenths of an inch. Very closely allied to A. morio Fab. I observed this species in considerable numbers near Merrimac river, Missouri. The terminal joint of the antenna is rather short, by which character it may be distinguished from A. fulvohirta Wied. It is referable to the fifth tribe of the genus Anthrax, agreeably to Wiedmann's divisions. 2. A. LATERALIS.-Black; wings hyaline; sides with fulvous hair; tergum banded. Inhabits Pennsylvania and Maryland. [ 43] Hypostoma and occipital orbits with white hair: stethidium with fulvous hair, particularly on the sides of the thorax, on the pleura and collar; wings as far as the basal transverse nervure fuscous, costal nervures fuscous, the included areola yellowishbrown, feet, the hair with a whitish reflexion; tergum with a band of prostrate yellowish hair at the base of each segment, and with long fulvous hair each side as far as the middle of the length. Length nearly one-fourth of an inch. It belongs to Wiedemann's fifth tribe. 3. A. SCRIPTA.-Wings varied with black and hyaline; tergum with four series of silvery points. Inhabits Pennsylvania. Head reddish-brown, obscure covered by yellow ferruginous hair, intermixed with longer black hairs, a black band on the hypostoma, a black spot on each frontal orbit, and vertex black; thorax dusky, or blackish, with three black vittae, sides before the wings dull cinereous, bounded beneath by another black line, beneath the posterior angles' is a fascicle of gray hairs, above which are a few ferruginous hairs; scutel reddish-brown, with short black hair, and a small white spot at the subangulated tip; pleura and pectus reddish-brown; feet reddish-brown, tarsi blackish; wings, costal areola with a small hyaline spot, which is the termination of a band extending in a slightly arquated di1823.] 60 ACADEMY OF NATURAL SCIENCES rection to the inner angle of the wing, and interrupted by the nervures into five compartments; the three larger [44] cellules of the hinder margin, with the exception of the margins of the nervures, hyaline; a hyaline rounded spot occupying the exterior half of the central cellule, with a smaller spot on each side of it; sometimes obsolete or double; above this central cellule, and near the costal nervures, are two double distant small hyaline spots; tip of the wing hyaline, the two nervures margined with blackish, the margin of the superior one is generally interrupted in the middle; tergum reddish-brown, covered with black hair, first segment with cinereous hair each side of the scutel; second and third segments with each four small white spots on the posterior edge, the lateral ones on the former linear; fourth with but two, the lateral being obsolete; fifth with a transverse line each side, sometimes crossed by a longitudinal line extending on the posterior segments, and exhibiting a cruciform mark, these marks and dots have a silvery brilliancy. Length seven-tenths of an inch. This species seems to come nearest to Meigen's second tribe, but it differs by having an additional cellule under the large central cellule of the wing. I labelled it in my cabinet with the Fabrician name of capucina, but I cannot identify it with the somewhat detailed description which Meigen quotes from Fabri. cius, nor yet with Pallas's description of the caloptera, that both Meigen and Wiedemann quote, and regard as synonymous with the capucina, which they believe to be a native of Europe. [45] That our insect is totally different from the caloptera no one will for a moment doubt, for the latter is no larger than the morio, whereas our insect is nearly equal to the cerberus in size. In deference therefore to the opinion of the authorities above referred, I describe this species as distinct, though it seems probable that Fabricius had this species in view when he referred to North America as the native country of the capucina. [This is A. Simson Fabr.-SACKEN.] 4. A. ANALIS.-Black; wings hyaline at tip; tail silvery. Inhabits Georgia. Body deep black; wings brown-black opaque, posterior third hyaline; anterior and intermediate tibia piceous on the upper [Vol. III. OP PHILADELPHIA. 61 edge; tergum brilliant silvery at tip, and with a white fascicle each side at base. Length seven-twentleths of an inch. I am indebted to Mr. August G. Oemler, of Savannah, for this fine species. It belongs to Wiedemann's fifth division. r. A. ALTERNATA.-Body villous, above black, beneath and sides cinereous; tergum fasciate with cinereous. Inhabits the United States. Head black; eyes chestnut; front, beneath the antennae bright cinereous; proboscis concealed in a groove to the tip; palpi distinct, exterior; thorax cinereous, tinged with fulvous each side, and at the scutellar suture; wings dusky, pellucid, nervures [46] blackish-brown; base to the first transverse nervures brown opaque; pectus cinereous; feet blackish; scutel edged with cinereous; abdomen each side with dense long hair, which is cinereous on the first and second segments, but on the remaining segments alternating with black; tergum with six or seven cinereous lineolar bands; venter cinereous; segments, particularly the third, black at base. Length of body more than eleven-twentieths of an inch. Found in Pennsylvania, and also in Missouri. It belongs to Wiedemann's fifth tribe. 6. A. IRRORATUS.-Black; wings hyaline, with numerous black punctures. Inhabits the Rocky Mountains. Body deep black, hairy; eyes reddish-brown, tinged with golden; wings hyaline, with numerous irregular, unequal, dark fuscous spots, of which those near the costal margin are larger than those near the posterior margin and tip, the spots along the costal margin are quadrate and alternate somewhat regularly with their hyaline intervals. Length one-fourth of an inch. The nervures of the wings are nearly similar to those of the wing, fig. 22, pl. 17 of Meigen's Diptera Europea.-(Europaischen zweifltigeligen.) [This is A. oedipus Fabr.; A. irrorata Macq., is a different insect.-SACKEN.] 1823.] 62 ACADEMY OF NATURAL SCIENCES 7. A. CALIPTERA.-Fundamental color brown; wings with three-brown bands, and a silvery spot on the costal base. Inhabits Arkansa. [ 47 Thorax black-brown, with very short yellowish hair, and longer hair on the anterior edge, a pale fundamental spot on the posterior angle; feet pale reddish-brown; poisers yellowish; scutel reddish-brown; wings brown at base, then a hyaline arquated equal band divided by nervures into five compartments, then a brown band bifid on each margin, and rather narrower in the middle, then an irregular hyaline band very narrow towards the costal margin, abruptly produced in the middle to the tip of the central cellule, then an irregular brown band including a hyaline triangular spot on the inner margin of the wing, and another at the costal margin which almost separates a portion of the band into a distinct triangular spot, lastly an irregular hyaline spot at tip, costal margin, excepting where it is crossed by the first hyaline band, brown; tergum, fundamental color yellowish-brown, with very short black hair, first segment black, second with white hair on the basal half, and a large black spot on the middle, third with a black spot on the middle, and a white hairy spot on the posterior angle, fourth with a black spot. Length nearly seven-twentieths of an inch. Belongs to Wiedemann's third tribe. ASILUS Lin. Meig. 1. A. VERTEBRATUS.-Tergum pale cinereous; segments blackish at base; tibia testaceous. [48] Inhabits Missouri. Head yellow; proboscis and antennae black; thorax yellowishcinereous, the dusky line divided by a cinereous one; wings reddish-brown; feet black, with cinereous hair, tibia and tarsi above testaceous; tergum whitish-cinereous, with a large transverse blackish subtriangular spot at the base of each segment, terminal anal segments black; venter immaculate. Length to the tip of the wings one inch and two-twentieths. This species belongs to the second tribe in Wiedemann's division of this genus. [This is probably a Promachus Loew.-SACKEN.] [Vol. III OF PHILADELPHIA. 63 2. A. SERICEUS.-Sericeous, somewhat golden; thorax with a dilated brown vitta; colors of the tergum changeable. Inhabits Pennsylvania. Antennae dull yellowish; thorax, vitta attaining the scutel, and in a particular light changing to bright yellow; wings ferruginous, areolae of the thinner margin, and of the tip dusky; feet light chestnut, somewhat sericeous; tergum dark-brown, with bright yellow posterior margins to the segments when viewed from behind or above, bright yellow or golden, with brown posterior margins to the segments when viewed from before; venter blackish-brown, in a particular light ferruginous. Length rather more than one and one-tenth inches. This beautiful species is referable to Meigen's first tribe. [49] OMMATUS Wied. O. TIBIALIS.-Black-brown; abdomen black; tibia white. Inhabits Pennsylvania. Front and hypostoma golden-yellowish; vibrissae gray, near the antenna black; occiput silvery, nearly glabrous; thorax darkbrown, approaching black, with an obsolete narrow brown line on the middle; scutel, metathorax, pleurae, pectus, and coxm silvery; wings pellucid, with black nervures; thighs dark chestnut; tibia white, intermediate and posterior ones near the tip, and tarsi brown. Length eleven-twentieths of an inch. DIOCTRIA Meig. 1. D. 8-PUNCTATA.-Subglabrous, black; abdomen with four white spots on each side. Inhabits the United States. Body black, nearly glabrous, polished; front yellowish; thorax with three yellow lines, of which the exterior ones are dilated before, and include a dusky spot; feet testaceous, tibia and tarsal joints tipped with blackish; tergum punctured, and with a white spot at the lateral tip of the second, third, fourth and fifth segments. Length three-tenths of an inch. This species is an inhabitant both of the western and eastern States. The first joint of the antennae is [50] considerably longer than the second, though not double its length, and the terminal joint is elongated, subcylindrico-compressed, obtuse at tip, with a 1823.] 64 ACADEMY OF NATURAL SCIENCES short spine on the superior surface rather beyond the middle, and a small oblong-ovate denuded space on the inner surface. The wing nervures are arranged as in Dioctria and Dasypogon. Genus DASYPOGON Meig. 1. D. 6-FASCIATUs.-Cinereous; abdomen black, with a white band on each segment. Inhabits Missouri. Body black, densely covered with short cinereous hair; head with longer silvery hair; antennae black; nervures fuscous; tergum black, polished, each segment with a white band at tip, a little dilated in the middle, and occupying about one-third of its proper segment; thighs and tibia testaceous at base; halteres pale. Length seven twentieths of an inch. [The genus Dasypogen formed of the most heterogeneous elements, has been subdivided by Prof. Loew, into seventeen groups or subgenera, comprising the European species only. The American species for the most part belong to new groups, as yet undefined. Those of Say's species which I know to belong to one of Loew's groups, I refer to them, leaving the others in the genus Dasypogon in Meigen's acceptation.-SACKEN.] 2. D. ABDOMINALIS.-Yellow; thorax cinereous; wings dusky. Inhabits Pennsylvania. Body cinereous; head with an impressed line between the antenna; antennae and rostrum black; thorax with an abbreviated, brown line before and a lateral interrupted one; wings dark brown immaculate; abdomen bright-yellow, very slightly tinged with rufous, immaculate; feet pale rufous, tibia [51] dusky at tip, tip of the posterior ones dilated, and first joint of the posterior tarsi also dilated and as long as the three following segments united. Length less than three-tenths of an inch. The head is very wide, the eyes being proportionally very large, the vertex deeply concave, and the stemmata placed on a common elevation. [This is a Discocephala Macq. Synonymous with D. rtfiventris Macq.-SACKEN.] 3. D. TRIFASCIATUS. —Cinereous; tergum black, trifasciate with whitish. Inhabits Pennsylvania and Maryland. [Vol. III. OF PHILADELPHIA. 65 Antennae black, first joint of the style longer than the second; wings dusky, hyaline, nervures as in Meigen's fig. 10, pl. 20, excepting that the central cellule is rather more elongated; tergum velvet-black, a cinereous band at base, a linear one near the middle, and a dilated silvery one on the middle, tip of the tergum cinereous; venter somewhat livid, immaculate. Length S two-fifths of an inch; 2 half an' inch. Found sometimes in sandy districts. The ground-color of the body is black, but this color is concealed by a pruinose covering. [This and the next species belong to Stichopogon Loew.SACKEN.] 4. D. ARGENTEUS.-Cinereous, immaculate; poisers paler yellowish. Inhabits Pennsylvania and Maryland. Antennae black, second joint as long, or slightly longer than the first; first joint of the style longer than the second, which is acicular and minute; mystax and hair of the gense, pure white; vibrissue [52] none; wings hyaline, nervures light brown, arranged as in Meigen's fig. 11, pl. 20. Length from three-tenths to seven-twentieths of an inch. Like the preceding insect, the ground color is black, but this color is concealed by a universal pruinose covering, which has almost a silvery brightness when the animal is living and under the influence of the sun's rays. 5. D. POLITUS.-Tergum blackish-blue; posterior half of the wings fuscous. Inhabits Pennsylvania and Maryland. Hypostoma and front golden-brown, mystax and vibrissae yellowish-brown; vertex brown; genae pure white; antenna black, first joint of the style longer than the second, which is acicular and minute; thorax golden-brown, a double black line abbreviated behind, and a lateral broad dusky line approaching behind near to the scutel; feet rufous, thighs black; wings, basal half hyaline, a hyaline spot on the carpus, and a smaller obsolete one near the apex; nervures arranged nearly as in Meigen's fig. 11, pl. 20; tergum fine blackish-blue, the segments with lateral marginal cinereous triangles. Length nine-twentieths of an inch. 1823.] 5 66 ACADEMY OF NATURAL SCIENCES 6. D. CRUCIATUS.-Thorax margined and spotted with yellow, abdomen black, annulate with yellow. Inhabits Arkansa. Hypostoma yellow; stethidium black; thorax broadly margined with yellow, a humeral triangular [53] spot and a spot each side of the middle connected by a line with the margin, yellow; wings ferruginous, nervures like those of the preceding species; feet ferruginous; pleura spotted with yellow; abdomen black, segments with a broad yellow posterior margin. Length nine-tenths of an inch. A large and fine species, very readily distinguished from others. Genus LAPHRIA Fab. Latr. 1. L. FULVICAUDA. [Ante, 1, 12.] 2. L. GLABRATA.-Black, polished; posterior edges of the segments of the tergum white. [54] Inhabits the United States. Body with very short prostrate, indistinct hair, punctured; hypostoma silvery; tubercle of the vertex brown; occiput plumbeous; collar and line upon the thorax each side before the wings cinereous; pleura and pectus with a cinereous reflexion; wings immaculate, nervures brown, nearly resembling in their arrangement Meigen's fig. 20, pl. 20; poisers whitish; feet reddish-brown, the middle of the thighs, tips of the tibia and tarsi darker, posterior feet beneath densely hairy; the basal and terminal segments destitute of the white edge. Length one-fourth of an inch. Var. a. Feet pale. I have a specimen in which the external branch of the termiminal furcate nervure is continued a short distance beyond its connexion, as in Meigen's fig. 23. The antennae of this species are like those of Dioctria 8-punctata, excepting that they are acute at tip, and the arrangement of the nervures, decides the generic affinity of this insect. [Belongs to Atomosia Macq.-SACKEN.] [Vol. III. OF PHILADELPHIA. 67 [Continuation, from Vol. 3, pp. 73-104.] 3. LAPHRIA MACROCERA.-First joint of the antennae elongated; body black. Inhabits Pennsylvania. Body somewhat polished, with short, prostrate, grayish hair, punctured; antennae, first joint more than four times as long as the second; wings a little dusky, nervures nearly as in the preceding species: poisers pale-yellowish; feet black, tibia and base of the tarsi pale testaceous; tergum on each side and at tip margined with testaceous. Length one-quarter of an inch. This insect closely resembles the preceding species, [74] but the elongated first joint of the antennae, the want of white posterior edges to the abdominal segments, together with the color of the lateral margin and tip of the abdomen, prove it distinct. I had formerly placed both this insect and the preceding under the genus Dioctria, but the disposition of their wing nervures is precisely as in L. ephippium. 4. L. SERICEA. [Ante 1, 12.] 5. L. TERGISSA.-Thorax and three middle segments of the tergum with yellowish hair. [75] Inhabits Pennsylvania. Head black, vibrissae and long hair of the cheek pale yellowish; thorax dark blue, slightly tinged by cupreous, and covered by pale yellowish hair, which, on the anterior part, and on the lateral edge is tinged with ferruginous; pleura blackish-piceous, with two fascicles of ferruginous hair; wing nervures brown, margined; scutel blackish, ciliated with dusky hair; feet blued-black, two anterior pairs of tibia with yellowish hair, posterior thighs clavate, anterior pair of coxa concealed by yellowish hair; tergum blackish, the three intermediate segments with dense pale yellowish hair, which is interrupted in the middle, and does not occupy the basal edge. Length one inch and one-tenth. This is a large robust species, and the nervures of its wings are arranged like those of L. ephippium Fab. 1823.] 68 ACADEMY OF NATURAL SCIENCES LEPTOGASTER Meig. L. ANNULATUS.-Feet whitish, annulate with rufous. Inhabits Pennsylvania. Antennae and trophi whitish; thorax pale cinereous, with three dilated pale brown lines; wings hyaline, immaculate; anterior and intermediate feet white, extremities of the joints tinged with rufous or yellow, posterior feet more robust and elongated, joints yellow, white at base, thighs clavate, bifasciate with rufous near the tip, tibia trifasciate with [76] rufous; abdomen cylindric, elongated, dilated at tip, segments yellow-brown, dark reddishbrown at base and on the terminal submargin, terminal margins white. Length two-fifths of an inch nearly. The nervures of the wings of this insect, do not perfectly correspond with those of L. tipuloides, which circumstance, combined with another highly important difference that this insect exhibits, in having but two nails to the tarsi, would justify the generic separation of the annulatus from the tipuloides, and its reference to a distinct genus. It is not a Phthiria of Wiedemann? [Name changed to L histrio, by Wiedemann.-SACKEN.] HYBOS Meig. H. THORACICUS.-Thorax ferruginous* trilineate; abdomen piceous. Inhabits Pennsylvania. Antennae and rostrum yellow, pale; thorax ferruginous, with three dilated black lines: wings obscure, a dark red-brown stigma; feet reddish-brown, the posterior pair darker than the others, tarsi yellowish; abdomen dull-piceous. Length rather more than one-fifth of an inch. BIBIO Latr. Meig. 1. B. PALLIPES.-Black; tergum with a yellowish-piceous lateral margin. Inhabits Pennsylvania. Body hairy; wings hyaline, a large fuscous stigma, [77] interstice of the first and second nervures yellowish; feet whitish[Yol. III. OF PHILADELPHIA. 69 yellow, spines of the anterior tibia equal; posterior tibia somewhat dilated. Length one-quarter of an inch. %. 2. B. HETEROPTERUS.-Black; wings with a fuscous anterior margin and nervures. Inhabits Maryland. Body immaculate with dusky hair, feet rather long, posterior tibia at tip, and first and second joints of the tarsi dilated; wings brown, the costal margin fuscous, nervures differing somewhat in their arrangements, and the inferior branch of the lower furcate nervure curves backwards at the inner margin so as almost to meet the succeeding nervure at the edge of the wing. Length more than three-tenths of an inch. %. 3. B. ALBIPENNIS.-Black; wings white, with a fuscous stigma. Inhabits Pennsylvania. Body with cinereous hair; head above with black hair; halteres uscous, scapus brown; nervures brown; tarsi black-brown, exterior spine of the anterior tibia much larger than the interior one. Length three-tenths of an inch. This is a very common insect. The wings have a white appearance, and are strongly contrasted with the color of the body, and the brown and definite stigma. The posterior tibia of the male are much more dilated towards the tip than those of the female. 4. B. ARUICULATUS.-Black, thorax and feet rufous. Inhabits Pennsylvania. [78] Wings brownish, more particularly at the costal margin, and with a very distinct stigma; poisers pale, dusky at tip; feet pale rufous, joints and anterior tibia reddish-brown, tarsi dusky at tip, spines of the anterior tibia subequal. Length 9 rather more than one-quarter of an inch. 5. B. ORBATUS.-Black, immaculate; wings fuscous, the central connecting nervure wanting. Inhabits Pennsylvania. Feet and coxae piceous; humeral tubercle piceous; wings dusky, the costal margin particularly; the transverse nervure of 1823.] 70 ACADEMY OF NATURAL SCIENCES the disk, that in other species connects the inner branches of the two bifurcated nervures together, is entirely wanting. Length one-fifth of an inch. [Wiedemann who had specimens communicated by Say before him, describes this species as Dilophus orbatus Say. I collected a Dilophus in Florida which agrees very well with both descriptions. The absence of the central cross nervure is not a constant character; although it is not seen in many specimens, some show the cross nervure distinctly, others have it very faint, and others again show a beginning of it. This cross nervure, when apparent, is situated about half way between the upper cross nervure and the fork. Wiedemann describes the female; the sex is not mentioned by Say, but he evidently refers to the same sex. As I have several males in my possession, and they differ considerably from the female, I take occasion to give the description. D. ORBATUS. — Black, shining: feet black, with black hairs. Wings pale yellowish, tinged with pale brownish along the anterior border; stigma fuscous; nervures near the anterior border brown; the others very pale; central cross nervure sometimes wanting, sometimes distinct, and then situated as in the female. The color of the hairs on the feet, and the position of the cross nervure distinguish the male of this species from the male of another American Dilophus, (D. serraticollis Walker?), which is, besides, a little smaller. The females of the two species are entirely different, and cannot be easily mistaken.-SACKEN.] SCIARA Meig. Wied. S. FEiMORATA.-Black; thighs pale. Inhabits Pennsylvania. Wings hyaline, nervures fuscous; poisers large; coxae and thighs pale, or yellowish-white; abdomen dirty yellowish obscure, lateral margin and posterior margins of the segments blackish. Length less than one-tenth of an inch. DILOPHUS Meig. Wied. 1. D. STIGMATERLUS.-Black; stethidium and thighs rufous; two series of spines on the thorax, wings whitish with a dusky costal spot. [ 79] [Vol. III. OF PHILADELPHIA. 71 Inhabits Missouri. Body deep black; head elongated; antennae black, basal joint pale; eyes oblong-oval; thorax pale rufous, a transverse, uninterrupted series of approximate acute spines on the collar, and a series of rather smaller ones over the insertion of the anterior feet; wings whitish with a distinct black spot on the middle of the costal margin; feet black, trochanters and middle of the thighs pale rufous; anterior tibia with a series of prominent acute spines, on the anterior middle and tip, spines piceous at tip. Length one-quarter of an inch nearly. Taken at Engineer Cantonment. 2. D. SPINIPES.-Black; stcthidium and thighs rufous; two series of spines on the thorax of which the anterior one is interrupted in the middle; wings fuscous. Inhabits Missouri. Body black; head elongated; thorax pale rufous, a transverse series of approximate spines on the collar interrupted in the middle, and a series of smaller ones over the insertion of the anterior feet; wings blackish, costal margin darker; feet black, thighs and basal joints of the anterior pairs pale rufous; anterior tibia with a series of acute prominent spines near the base, middle and at tip. Length from the eyes to tip of the wings three-tenths of an inch. Found near Fort Osage. Differs from the preceding species in being much larger, in having the anterior series of thoracic spines [ 80 ] interrupted in the middle, and in having a triple series of spines on the anterior tibia. 3. D. THORACICuTS.-Black; stethidium, and two anterior pairs of thighs pale rufous; anterior series of thoracic spines uninterrupted. Inhabits Pennsylvania and Maryland. Thoracic spines, scutel and metathorax black; pleura and pectus, excepting the incisures, black; wings fuscous, stigma darker; poisers black; anterior coxae and thighs' excepting the basal and apical incisures, pale rufous; intermediate thighs, ex1823.] 72 ACADEMY OF NATURAL SCIENCES cepting the base and tip, also very pale rufous; anterior tibia spinous before, and beyond the middle and at tip. Length to the tip of the wings nearly one-quarter of an inch. Distinguishable from spinipes by its inferiority in size, and from stigmaterus by its dark colored wings, &c. MYOPA Fab. Latr. 1. M. VESICULOSA. —Head beneath vesicular and white; wings whitish at base. Inhabits Pennsylvania. Body rather robust; rostrum dark reddish-brown; hypostoma and cheeks vesicular, white, slightly tinged with yellow; front and occiput yellowish-brown, the former with two dilated dark lines; antennae reddish-brown, third joint yellowish-white; thorax reddish-brown, obscure, varied with blackish, beneath the scutel deep black; poisers pale yellow; [81] wings a little dusky, slightly darker on the middle of the costal margin, base whitish; pleura and pectus reddish-brown; feet dark reddish-brown, knees, base of the tibia and tarsi, excepting the points of the articulations, yellowish-white; tergum blackish-brown, paler on the margin; S Y. Length nearly three-tenths of an inch. 2. M. LONGICORNIS.-Body black, hairy; wings dusky, pale at base: antennae as long as the head. Inhabits Missouri. Antennae pale on the inner side and beneath; hypostoma pale with a silvery reflexion; front and vertex dusky; proboscis black; thorax with two obsolete pale lines; wings blackish, pale towards the base; poisers whitish; anterior pairs of feet with the thigh beneath, at base and leg, pale; anterior pair of trochanters pale, with a silvery reflexion; posterior feet, thighs pale on the basal moiety; abdomen clavate and hamate at tip. Length about three-tenths of an inch. 3. M. BIANNULATA.-Thorax dark-brown; tergum pale testaceous, annulate with dusky; hind thighs biannulate with brown. Inhabits Pennsylvania. Hypostoma pure silvery; front yellowish rufous; vertex blackish-brown, obscure in the middle; antenna white at base, third [Vol. III. OF PHILADELPHIA. 73 joint yellowish-rufous, the extreme point dusky, style situate near the tip, porrect, black; rostrum nearly as long as the body, blackish, at base white; thorax margined with white; pleura, pectus, and anterior pairs of feet [ 82] white; poisers fuscous; posterior thighs tinged with rufous on the middle, and with a brown annulus each side of the middle, posterior tibia at tip, together with their tarsi, fuscous; tergum reddish-yellow, posterior margins of the segments brown; venter narrow, white; 9 oviduct fuscous on its posterior half. Length nearly % three-tenths, 9 more than seven-twentieths of an inch. The habitus of this insect is entirely different from others of the genus. The body is slender, and not incurved, the rostrum much elongated, and the oviduct of the female resembles an attenuated continuation of the abdomen. [According to Wiedemann, who compared typical specimens, this is M. stylata Fabr.-SACKEN.] CONOPS Fabr. Latr. 1. C. MARGINATA.-Black, slightly hairy; an interrupted line upon the thorax before, and abdominal sutures yellow; costal moiety of the wings fuscous. Inhabits Missouri. Body black, with fine hairs; head yellowish-white; vertex black, a longitudinal line bifarious at the antennae, and transverse above; hypostoma with an impressed black sagittate spot, near the inferior tip of which, on each side, is a small black triangular spot; eyes chestnut; proboscis black; antennae black, basal and terminal joints pale beneath; vertex black, hardly elevated above the eyes; thorax, a yellow, anterior, transverse line interrupted in the middle; scutel ferruginous; wings, costal moiety black; halteres [83] whitish; feet pale reddish-brown: abdomen clavate, incurved at tip, segments, excepting the ultimate one, margined at tip with yellow; central connecting nersure of the wing minute. Length more than two-fifths of an inch. 2. C. SAGITTARIA.-iBlack, slightly hairy; humeral tubercle ferruginous; nearly two-thirds of the wing fuscous. Inhabits Pennsylvania. 1823.] 74 ACADEMY OF NATURAL SCIENCES Body with short hairs; head yellowish white; vertex in one sex black, in the other dirty whitish; front with a longitudinal black line bifarious at the base of the antennae, and a transverse one above; hypostoma with an impressed sagittate spot, on each side, near the base of which is a black spot; proboscis testaceous, blackish at tip; antennae dusky above, beneath terminal joint rufous; scutel dirty rufous; feet rufous; abdomen, segments obsoletely edged with yellowish, that of the petiole with dull cinereous; central connecting nervure of the wings very obvious. Length eleven-twentieths of an inch. This is a larger species than the preceding, with a much more considerable portion of the wings obscured, no interrupted thoracic fascia, and a much longer connecting nervure on the centre of the wing. [Name changed by Wiedemann to C. nigricornis.-SAC-xEN.] ZODION Latr. Z. FULVIFRONS.-Cinereous, front fulvous; thorax with two distant brown lines. [84] Inhabits Maryland and Pennsylvania. Head beneath, mouth, hypostoma and orbital line, pure white; proboscis black; antennae fulvous, first joint ferruginous, second with a dusky line on the superior edge; occiput blackish; poisers pale yellowish, style rufous, feet dull rufous, tibia white on the exterior edge; tergum with two irregular blackish lines, terminal segments testaceous. Length more than three-tenths of an inch. On flowers. 2. Z. ABDOMINALIS.-Testaceous; thorax dusky; proboscis black. Inhabits near the Rocky Mountains. Body with numerous short hairs; head silvery; vertex testaceous; antennae pale rufous; eyes and stemmata reddish-brown; proboscis black; thorax dusky cinereous, with two dorsal abbreviated fuscous lines, and an obsolete intermediate one; wings hyaline, immaculate, nervures at base testaceous, towards the tip fuscous; abdomen and feet testaceous. Length to the tip of the abdomen rather more than one-fourth of an inch. [Vol. III. OF PHILADELPHIA. 75 I obtained an individual at Engineer Cantonment, less than half the above mentioned size. DOLICHOPUS Fab. D. SIPHO. —Green; wings bifasciate; feet whitish. Inhabits the United States. Body green brilliant; hypostoma pruinose; front blue; antennae and palpi black; proboscis yellowish; thorax tinged with blue; scutel blue; wings with two brown or fuliginous, somewhat oblique bands beyond the middle, which do not attain the thinner margin, and are connected on the costal margin by a dilated line of the same color, forming a siphon-like mark; pectus on each side with a somewhat silvery reflection; feet whitish; tarsi dusky. Length one-fourth of an inch. Not uncommon; the terminal segments of the tergum of the male are tinged with golden, but the ultimate segments in each sex is blue. Central nervure furcate, the exterior branch widely angulated and terminating near the tip of the preceding nervure. [Belongs to Psilopus Meig.-SACKEN.] 2. D. uNIFASCIATUS.-Bluish-green; a white band at the base of the abdomen. Inhabits Pennsylvania. Body bluish-green, polished, slender: antennae, palpi and proboscis whitish; scutel blue; wings immaculate; feet whitish; tergum, first segment and half of the second whitish, posterior half of the second segment and third segment much tinged with blue, remaining segments green. Length one-fourth of an inch. Central nervure of the wing furcate, the exterior branch widely angulated and terminating near the tip of the preceding nervure, which is curved very considerably inwards, towards its tip. [Also a Psilopus; the name is changed to P. Sayi by Wiedemann.-SACKEN.] 4. D. oBscURUs.-Blackish-brassy; wings dusky; feet pale. Inhabits Pennsylvania. [ 86] Head dark-silvery; antennae black-brown; mouth blackish; thorax and scutel dark-brassy; wings dusky; feet white, a little 1823.] 76 ACADEMY OF NATURAL SCIENCES dusky on the tarsi; poisers white; tergum rather darker than the thorax. Length less than three-twentieths of an inch. The central nervure of the wing is nearly rectilinear, being hardly perceptibly reflected. 5. D. FEMORATUS.-Green; tibia and tarsi whitish. Inhabits Pennsylvania. Body brilliant green, with bluish reflexions; front pruinose; antennae blackish; proboscis yellowish; wings hyaline; scutel blue; thighs green, and excepting the posterior ones, whitish at tip, tibia white, tarsi dusky; tergum, ultimate joints cupreous at their bases. Length three-twentieths of an inch. The brilliancy and shade of green in this insect are similar to D. sipho; when living, and in the sun's rays, it resembles burnished gold, nervures nearly as in sipho. [Belongs to Psilopus.-SACKEN.] 6. D. CUPREUS.-Green, varied with cupreous; feet whitish, tipped with dusky. Inhabits Maryland. Front pale, with minute silvery hairs; vertex purple-blue; antennae pale, yellowish, black on the upper edge and at tip; palpi and proboscis pale-yellowish; thorax cupreous; scutel greenish-brassy; feet whitish, dusky at tip; tergum green, varied with cupreous, posterior margins of the segments cupreous. Length one-fourth of an inch. [87] This species is more robust than the preceding ones. I obtained several specimens on the eastern shores of Maryland and Virginia. Central nervure abbreviated, but angularly connected near its tip to its parallel branch, by a short nervure, which inclines a little towards the base of the wing. [Name changed by Wiedemann to D. cuprinus, as there was previously a European D. cupreus Fall.-SACKEN.] 7. D. PATIBULATUS.-Green; wings bifasciate; feet black. Inhabits E. Florida. Body green, brilliant; hypostoma pruinose; antennae and palpi black; proboscis piceous-black; wings with two brown or fuligiginous bands beyond the middle, perpendicular to the costal edge, not attaining to the inner margin, and connected on the [Vol. III. OF PHILADELPHIA. 77 costal margin by a dilated line of the same color; feet black; thighs and coxae blackish-blue. Length rather more than three-twentieths of an inch. %. This species closely resembles D. sipho, but it is much smaller, the bands of the wings without any obliquity, and the feet entirely colored. [Belongs to Psilopus. —SACKEN.] SARGUS Latr. Meig. S. VIRIDIS.-Body green, polished; wings dusky; eyes above brassy. Inhabits the United States. Body green, polished, varied with brassy, and in a certain light purplish, and covered by very short hair; eyes very large, brown, when recent deep green, polished beneath, above tinged with brassy, sub-opaque, [88] and separated from the green of the inferior portion, by a red line; antennae black; labia pale; tibia blackish. Length seven-twentieths of an inch. Var. a. Bluish-purple. Var. b. Bluish-purple; abdomen green. A very pretty species; I found it near Cincinnati, perched upon a leaf; it is also an inhabitant of the Atlantic States. It has a bright-green appearance, although covered with very short hairs, but these are hardly discernible to the unassisted eye. It is closely allied to S. xanthopterus Fab., but the joints of its feet are not yellowish, as those of that species are. SCOEVA Fabr. Latr.* 1. S. POLITA. —-Thorax with a yellow line each side, and a cinereous dorsal one; tergum with band and quadrate spots yellow. Inhabits the United States. Head yellow, above the antenna dusky silvery; thorax somewhat olivaceous, a yellow line above the wings, and a dorsal cinereous one: scutel dusky yellowish, with a paler margin; feet whitish; tergum black, basal segment with a basal lateral edge; 1823.] *The name now adopted for this genus is Syrphus Linn.-SACKEN. 78 ACADEMY OF NATURAL SCIENCES second segment with a transverse yellow band on the middle; third and fourth segments with a band and longitudinal line, each side of which latter is a large transverse subtriangular spot, yellow; fifth segment with the yellow spots and base, but destitute of the longitudinal line. Length about three-tenths of an inch. [89] 2. S. OBLIQUA.-Thorax greenish bronze, with a yellow dot before the wings; tergum banded and spotted with yellow. Inhabits the United States. Head yellow, a dusky line above the antennae; orbits yellow to the vertex; antennae blackish on the superior edge; thorax dark green-bronze, a large yellow spot before the wings; scutel bright-yellow; feet whitish, anterior tibia and tarsi a little dilated, the latter with short joints, posterior thighs with one obsolete band and tibia two banded, extremity of all the tarsi dusky; tergum black, first segment with a yellow basal edge; second segment with a band at the base, interrupted into two oblong triangles, a broader one on its middle, yellow; third segment with one band which is sometimes double; fourth and fifth segments each with an oblique oblong oval spot each side, and two longitudinal lines on the middle, yellow. Length about three-tenths of an inch. Resembles the preceding, but there is no line upon the thorax, and the markings of the tergum are different. 3 S. CONCAVA.-Thorax bluish-green, tergum with four yellow bands. Inhabits Pennsylvania. Head whitish, sericeous; antennae pale testaceous; margin of the mouth dusky; thorax bluish-green, with pale cinereous hairs; scutel dusky, somewhat livid; feet whitish, dull rufous at base; pectus dark glaucous, tergum black, quadrifasciate with yellow; [ 90] first band interrupted, triangular each side, the others concave behind, terminal one narrow. Length more than seven-twentieths of an inch. Very much resembles S. ribesii of authors, but the second and third bands of the tergum are widely concave behind, instead of being almost acutely notched, as in the common European species. I obtained several pupae of this insect, adhering by the [Vol. III. OF PHILADELPHIA. 79 inferior part of the abdomen to the rails of a fence. This included insect was evolved on the 22d of April. 4. S. QUADRATA.-Thorax bluish-bronzed; abdomen with eight very large quadrate yellowish spots. Inhabits the United States. Head bluish-bronze, with short cinereous hair; frontal elevation dusky; antennae dark reddish-brown; thorax and scutel bluish-bronze, polished, immaculate; feet testaceous; anterior tibia and tarsi of the male dilated, the joints of the latter much shortened; first and last joints of the posterior tarsi blackish; tergum with eight very large, quadrate, fulvous spots, occupying nearly all the surface, leaving only a dorsal line and incisures black, the two spots of the penultimate segments are hardly separated, sometimes united into a continuous band, and the ultimate or anal segment is immaculate, somewhat livid; venter yellow, whitish at base. Length one-third of an inch nearly. This insect is very nearly related both in form and colors to S. mellina Fab., but the spots of the tergum occupy a far greater portion of that part. [91] 5. S. EMARGINATA.-Thorax dark green, with a yellow margin; tergum banded with yellow. Inhabits East Florida. Front yellow; antennae on the superior margin fuscous; a double blackish spot above the base of the antenna; thorax dark-green, a yellow line each side; scutel yellow; feet yellow, posterior thighs and tibia dusky in the middle; tergum black; first segment yellow on the exterior edge; second segment with a transversely oblong-oval spot on each side, attaining the exterior edge; third segment with the edge of the basal angles, emarginate band on the middle, not attaining the lateral edge, and posterior edge yellow; fourth segment with the edge of the lateral angles (which joins the tip of the preceding segment to form a narrow band,) band on the middle not attaining the lateral edges, and most profoundly emarginate behind, and posterior edge yellow; fifth segment with a triangular basal spot each side, and tip, yellow. Length to the tip of the wings half an inch. 1823.] 80 ACADEMY OF. NATURAL SCIENCES It requires some examination to perceive the difference between this insect and the S. corollw of Fabr., but on inspecting the third and fourth segments of the tergum, it will be observed, that there are at least two more bands on our species; these bands are narrow and are formed by the confluence of the yellow and posterior edges of those segments with the yellow basal angles of the succeeding segments. It is highly probable that the band on the middle [92] of the fourth segment, and perhaps also that on the third are sometimes entirely separated by their posterior emargination, each into two oval spots. 6. S. MARGINATA.-Thorax blackish, with a yellow margin; tergum spotted, banded and edged with yellow. Inhabits the United States. Head yellow, a blackish line above the anteneae; thorax blackish, tinged with olivaceous or glaucous, a lateral yellow line continued to the scutel and an obsolete dorsal cinereous one; scutel yellow; feet pale, posterior tarsi a little dusky at tip; tergum blackish, edged with yellow; first segment with a yellow basal edge; second segment with a yellow band on the middle; third and fourth segments each with a dorsal line and somewhat oblique spot each side confluent with the base yellow, sometimes tinged with rufous; fifth segment with two oblique yellow spots confluent at tip. Length rather more than one-fifth of an inch. This insect is smaller ithan the preceding ones, and may be readily distinguished from them by the yellow abdominal edge, as well as by the different arrangement of its spots. It is subject to vary in the character of its tergum, in having the spots sometimes almost confluent with each other, or in being colored with rufous. 7. S. GEMINATA.-Thorax with a yellow margin; tergum spotted and banded with yellow. Inhabits the United States. Head yellow silvery, at its junction with the thorax [93] glaucous; antenna yellow; thorax bronze-blackish, a yellow line each side, and an obsolete cinereous dorsal one; scutel color of the thorax, with a yellow margin: feet pale, posterior pair with [Vol. III. OF PHILADELPHIA. 81 the thighs and tibia arquated, the former blackish at tip, the latter sub-bifasciate with brown; tergum black; first segments yellow on the basal edge; second segment with a yellow band on the middle; third and fourth segments with each a central longitudinal line, and two triangular spots on each side; fifth segment four spotted. Length about one-fifth of an inch. About equal in size to S. marginata S., from which it may be known by its double lateral spots of the tergum, as well as by the absence of a yellow edging upon this part of the body. [Macquart has placed this as a new genus Toxomerus, describing it also as a new species, T. notatus Macq., Dipt. Exot. 5th Supple. 93; tab. 5, fig. 4.-SACKEN.] 9. S. AFFINIS.-Thorax blued-black; tergum black with three yellow lunules on each side. Inhabits Arkansa. Head whitish, between the superior angles of the eyes black; antennae fuscous; frontal elevation, superior oral angle, and proboscis black; thorax and pectus blued-black, with long dense whitish hair each side; nervures testaceous; scutel pale testaceous; feet whitish, dusky at base; tergum black, with three lunules on each side, and the two terminal segments edged with yellow; venter yellowish, exterior edge and disks of the segments black. Length to the tip of the wings three-fifths of an inch. Size of S. transfuga Fabr., which it very closely [94] resembles, and is to be distinguished by the somewhat darker coloring. Is it not a variety of that species? RHINGIA Fab. R. NASICA. S.-Tergum yellow, incisures and dorsal line black. Inhabits the United States. Front yellow, beneath the mouth dusky; nasus prominent; thorax bronze, with two obsolete cinereous lines on the anterior margin; scutel pale testaceous, a large brown spot on each side; feet pale yellowish, thighs dull red-brown at base, posterior tibia in the middle and first joint of the tarsi dusky; tergum black, a large transversely oblong quadrate yellow spot occupies each 1823.] 5 82 ACADEMY OF NATURAL SCIENCES side of the disk, and extends to the lateral edge of each of the three basal segments. Size of S. rostrata Fab., to which it is very closely allied, but it has a larger portion of black upon the tergum, the incisural lines and the dorsal line being wider, and of a much more intense color; the fourth segment also is much darker than in that insect. I have a female still more like the rostrata; the color and markings of the head, thorax and scutel being similar, and the fourth segment of the tergum is much tinged with yellow, but still the above remark respecting the intensity of the color of the sutures and dorsal lines apply to this specimen. [95] SICUS Meig. S. FENESTRATUS.-Blackish; feet pale, thighs with a black line. Inhabits the Middle States. Antennae yellowish-white; palpi pure white; proboscis color of the antennae; thorax piceous-black; scutel bi-spinous; wings a little dusky; feet whitish, anterior thighs dilated, with generally a black serrated curved line on the inner side, anterior tibia and posterior thighs and tibia with a blackish line on each side, a black spot generally on the first joint of the anterior coxae; tergum brown, last joint black. Length three-twentieths of an inch. [This genus is Tachydromia Meig.-SACKEN.] EMPIS Fab. Lat. 1. E. 5-LINEATA. —Body blackish-cinereous; thorax five-lined; feet dull testaceous. Inhabits Missouri. Eyes sanguineous; front beneath the antennne cinereous; proboscis dark-brown; thorax with three longitudinal, hairy, brown, dorsal lines, obsolete behind, and a lateral one each side; wings brown, somewhat paler at base; feet brown-testaceous; tarsi black. Length to tip of wings nearly half an inch. The nervures of the wings are like those of Tachydromia nigripennis Fab. [Belongs to Rhanmphomyia Meig.-SACKEN.] Vol. III OF PHILADELPHIA. 83 2. E. CILIPES —Body cinereous; thorax quadrilineate with black; wings brown, paler at base. [961 Inhabits Ohio. Body blackish-cinereous; eyes red-brown, those of the male occupying nearly all the head; stemmata black; antennae black, first and second joints with short cinereous hairs; proboscis corneous, black, polished; thorax hairy, two longitudinal, dorsal black lines, obsolete behind, and a lateral one each side; wings brown, paler at base; nervures dark brown; feet black; posterior tibia in the male, dilated towards the tip and deeply hairy above, hairs cinereous; abdomen black, densely ciliated with cinereous hair, attenuated to an acute tip in the female, and in the male the tip is dilated, and abruptly reflected. Length of the body three-tenths of an inch. A rather common insect, about the 16th of May, near Cincinnati. The nervures of the wings are like those of the preceding species, from which it may be distinguished by being smaller and having one line less on the thorax, &c. [Also a Rhamphomyia.-SACKEN.] 3. E. SCOLOPACEA.-Cinereous, with a silvery reflection; feet reddish-brown. Inhabits Pennsylvania and Maryland. Head black; antennas dark reddish-brown; proboscis yellowish; thorax slightly trilineate; tergum immaculate silvery, reflexion brighter than that of the thorax; wings immaculate, nervures pale; feet dull reddish-brown. Length rather more than three-twentieths of an inch. On flowers. [97] CALOBATA Latr. Meig. 1. C. ANTENNZEPES.-Black; feet pale, anterior tarsi white, posterior tarsi white at base. Inhabits the United States. Body elongated, slender, deep black, immaculate; eyes chestnut brown; antennae, terminal joint white; thorax deep-black, with a plumbeous tinge; feet elongated, anterior pair moderate, shorter than the body, black, pale at base, tarsi pure white, intermediate and posterior pairs much longer than the body, pale, 1823.] 84 ACADEMY OF NATURAL SCIENCES thighs beyond the middle, and near the tip annulate with black, tibia black, somewhat pale towards the tip, tarsi black, of the intermediate ones pale on the terminal joint, of the posterior ones, basal joint pure white; abdomen deep black, polished, venter pale beneath on the middle segments. Length of the body three-tenths, of the posterior feet less than three-fifths of an inch. The anterior pair of feet, when compared with the others, are very short, and being extended before the head, considerably elevated above the plane on which the insect moves, and also being constantly vibrated, they assume the appearance of antennae. The whiteness of the anterior tarsi is very distinct and characteristic. This species occurred in the State of Illinois, it is also found in Philadelphia. 2. C. PALLIPES.-Black; mouth, antenne and feet yellowishwhite. [98] Inhabits Missouri. Body black, elongated, slender; front, antenna and mouth yellowish-white; vertex velvet black, opaque, margined each side by a silvery line: thorax with a whitish line each side before the wings: nervures pale; feet including the coxe yellowish-white. Length to the tip of the abdomen, more than one-fourth of an inch. A much smaller species than the preceding. [This species is a Micropeza Meig.-SACKEN.] LOXOCERA Latr. L. CYLINDRICA.-Yellowish-rufous; feet paler. Inhabits Pennsylvania. Body yellowish-rufous; head obsoletely varied with dusky behind the vertex; antennae fuscous, pale at base, beneath the head whitish; thorax with an undulated band on the anterior margin, dorsal line and an obsolete line before the wing, black; wings a little dusky, particularly at tip; feet whitish; abdomen immaculate, Length less than three-tenths of an inch. Var. a. Lineations of the thorax obsolete or wanting. About the size of L. ichnenmonea Fab., but it differs from that i sect in many characters. [Vol. 11I OF PHILADELPHIA. 85 PYROPA Illig. P. PURCATA.-Yellowish, hairy; below the scutel pale plumbeous; wings with two dusky anastomoses. [ 99 ] Inhabits Missouri. Body pale yellowish-brown, hairy; head beneath the antennae and narrow orbits yellowish-white, a little polished; antennae and large spot above bifurcated at tip, rufous; proboscis piceous; thorax lineated obsoletely with brown; wings with two blackish anastomoses; beneath the scutel tinged with pale plumbeous extending downward to the origin of the posterior feet; tergum densely hairy: feet hairy, particularly the anterior pair, the thighs of which are marked by a dilated dusky line above. Length to the wing tips from two-fifths to nine-twentieths of an inch. Rather less than P. lutaria which it very strongly resembles, but may be distinguished by the dusky mark on the anterior thighs. [This genus is Scatophaga Latr.-SACKEN.] OCHTHERA Latr. O. EMPIFORMIS.-Whitish; tergum black; head cinereous, eyes very large, black. Inhabits Illinois. Body whitish; head cinereous, sub-globular; eyes oval, very large, approximating beneath the origin of the antennae black; antennae whitish, abruptly broken outwards at the third joint; rostrum pale; thorax dusky above; feet white, anteriors, thighs dilated, robust, emarginate behind the inferior middle, for the reception of the tips of the tibia, and armed beneath with distant equidistant, rather long setaw, tibia incurved at tip and mucronate, armed beneath with [100] approximate, short, setae, intermediate and posterior feet white, tips of the tarsi blackish abdomen deep black, immaculate. Length of the body one-tenth of an inch. [Wiedemann has changed the name to 0. empidiformis.SACKEN.] 1823.] 86 ACADEMY OF NATURAL SCIENCES SCENOPINUS Latr. Fabr. S. PALLIPES.-Thorax black, a little metallic, a small rufous tubercle on the edge near the humerus; feet pale. Inhabits Pennsylvania. Head black, slightly metallic, with numerous short hairs, giving it a granulated appearance, a glabrous polished frontal and orbital line; thorax with numerous short hairs and with the scutel appearing granulated, an obsolete rufous tubercle on the lateral edge near the humerus; wings a little dusky, nervures brown; poisers yellowish, on the superior surface dark brownish; feet pale-yellowish, tarsi dusky; tergum black, transversely grooved, polished; venter black, with a metallic tinge. Length 9 less than one-fifth of an inch. This species is very closely allied to S fenestratus Fab. BACCHA Meig. B. FUSCIPENNIS.-Bronzed; wings dusky, with a whitish spot ict the extremity. Inhabits Pennsylvania. Body dark bronzed: head yellowish, above the [101] antennae bronzed; wings dark fuliginous, with a hyaline marginal on the thinner margin near the tip and near the base; feet dull testaceous, posterior pair much the longest: abdomen elongated cylindric, tinged with rufous. HELEOMYZA Fall. H. 5-PUNCTATA.-Light reddish-brown; wings with a few fuscous spots; tergum fasciate with black. Inhabits Missouri. Body pale reddish-brown; vertex tinged with fulvous; eyes dull sanguineous; antennae reddish-brown, seta black, plumose, at base separated by a slightly elevated, obtuse, abbreviated carina; front yellowish-testaceous; gula and jugulum, whitish; thorax with numerous black points, and two dorsal series of setse; wings dusky, five blackish spots, of which two are on the:nastomoses and three at the tip, costal edge with short rigid setae; pectus, venter and feet whitish-testaceous, three terminal [Vol. III. OF PHILADELPHIA. 87 tarsal joints black; tergum paler than the thorax, posterior margins of the segments with a definite black band. Length to the tip of the wings seven-twentieths of an inch. Very common on the Missouri; I observed it particularly above Cow Island. [The genus is called Helonmyza Fall.-SACKEN.] OLFERSIA Leach. O. ALBIPENNIS.-Blackish-brown; wings whitish. [102] Inhabits Ardea herodias. Mentum white; thorax with the cruciate lines distinct, the longitudinal line tinged with yellow, humeral tubercle prominent, pale, obtuse; scutel with an impressed line; nervures brown, inner cellule less than half as long as the preceding one which extends to the base of the wing; pectus with a prominent angle each side between the anterior pairs of feet; tergum pale brownish, with a black base, disk and tip. Length one-fifth of an inch. ORNITHOMYIA Latr. Leach. 1. 0. NEBUILOSA.-Head yellow; feet pale; tibia with two reddish-brown lines. Inhabits Strix nebulosa. Eyes blackish-brown; vagina and hypostoma pale; thorax reddish-brown, with a large yellowish humeral spot and three longitudinal lines, of which the intermediate one includes an impressed line, which interrupts a transverse impressed line; humeral angle prominent, subacute; spiracle white; marginal nervures blackish-brown, those of the disk brown; scutel reddish-brown, varied with yellow at base; pectus yellow-white, anterior margin bifurcated; tarsi dark reddish-brown, nails black; abdomen pale-brownish, with black hair, first segment on its anterior face pale-yellow. Length three-tenths of an inch. [103] 2. 0. PALLIDA.-Pale; intermediate cellule of the wing extending nearly to the tip of the outer cellule. Inhabits Sylvia sialis. Eyes blackish-chestnut; antennae chestnut, tip white; labrum bifurcated, white; hypostoma whitish; front yellow-white, a 1823.] 88 ACADEMY OF NATURAL SCIENCES brown lunule above the hypostoma and spot on the vertex; throat and cheeks white; thorax varied with pale-yellowish and pale honey-yellow, impressed cruciform lines distinct; scutel pale honey-yellow, edged with pale-yellow; costal nervures darkbrown at base, and those of the disk brown, the transverse nervure of the intermediate cellule is in contact with that of the preceding cellule; pectus and feet white, tibia with a brown line, tarsi tinged with green; nails black; abdomen yellowish-white. Length less than one-fifth of an inch. 3: 0. CONFLUENTA.-Reddish-brown; costal nervures of the wing confluent before their termination. Inhabits Ardea candidissima. Vertex with a deeper brown spot; occiput pale yellowish; humerus with a pale spot, the angles not all produced, obtuse; costal nervures fuscous; feet yellow-brown, tibia with a darkbrown line, nails black. Length rather more than one-tenth of an inch. The remarkable character of the costal nervures of this species sufficiently distinguish it from others; these nervures are confluent about half the length from the termination of the first cellule to their tip. [Wiedemann observes that the name should be O. confluens.SACKEN.] [104] MELOPHAGUS Latr. Leach. M. DEPRESSUS.-Pale-testaceous; eyes subovate. Inhabits Cervus Virginianus. Body polished, a little hairy, but appearing perfectly glabrous to the eye: hypostoma yellow, with two brown lines; vertex dusky, with three indented punctures; thorax unequal, with an impressed line in the middle, with a dark reddish-brown posterior and lateral edge; feet slightly hairy, claws black; pectus with transverse rows of very short black spines; tergum depressed, punctured, two impressed lines diverge from near the base to the margin, beyond the middle; venter paler than the tergum, with short prostrate black hair-like spines, and an arquated series of spines near the base. Length less than three-twentieths of an inch. [Vol. III. OF PHILADELPHIA. 89 This appears to be a much smaller species than the Hippobosca cervi of Oliv., to which it is very probably allied, though on conl. parison with Oliver's description I conclude it is very sufficiently distinct. It has, like that insect, slight rudiments of wings. [From Jour. Acad. Nat. Sci., Philadelphia, Vol. 3, 1823, pp. 139-216.] Descriptions of Coleopterous Insects collected in the late Expedition to the Rocky Mountains, performed by order of Mr. Calhoun, Secretary of War, under the command of Major Long. Read Oct. 22, 1823. MANTICORA Fab. M. CYLINDRIFORMIS.-Dark chestnut-brown; elytra irregularly punctured. [ 140] Inhabits Arkansa. Body dark chestnut-brown, impunctured: head blackish: labrum bidentate: mandibles very strongly toothed: thorax narrowed behind, not elevated; a longitudinal impressed acute line, a transverse obsolete arquated indented line before originating at the anterior angles, and a still more obsolete line also originating at the anterior angles and forming an angle behind the middle; base not sinuated, with a marginal and obsolete submarginal indented line: scutel none: elytra joined at the suture, rather paler than the thorax; irregularly marked with unequal punctures, many of which are preceded by a slightly elevated point; a submarginal and marginal elevated line, line of the edge acute, not more elevated than the th hers: epipleura with larger and more distinctly scabrous punctures. Length more than one inch. Found at the base of the Rocky Mountains. The abdomen is much less dilated than that of M. maxillosa. [Afterwards the type of Amblychila Say.-LEc.] CICINDELA Lin. Latr. 1. C. SCUTELLARIS. -Green; elytra, excepting the anterior portion of the suture, reddish-brassy polished. Inhabits Arkansa. 1823.] 90 ACADEMY OF NATURAL SCIENCES Head and thorax green, a little varied with violaceous: antennae black at tip: labrum and mandibles at base above, white: elytra abruptly rounded at tip, punctured, a few larger punctures at base; brilliant [ 141 ] reddish-brassy; region of the scutel from the middle of the base to beyond the middle of the suture, green: beneath blue varied with violaceous. Length two-fifths of an inch. A rather small, but very pretty species; it was brought from the Arkansa by Mr. Thomas Nuttall. 2. C. FULGIDA.-Above red-cupreous, brilliant; elytra with two lunules and an intermediate refracted band. Inhabits Missouri Territory. Body, above red-cupreous, highly polished: head hairy before, varied with green and blue each side and before: labrum and exterior base of the mandibles white: antennae black at tip: thorax, impressed lines blue: elytra densely punctured; a dilated lunule at the basal margin, a dilated refracted band behind the middle, and a dilated lunule at the tip, white: beneath, hairy green. Length less than half an inch. In the dilated appearance of its lunules and band, this species very much resembles C. formosa, but it is a much smaller insect, much more highly polished, and not margined with white as in that insect. It inhabits near the mountains on the Nebraska (Platte) and Arkansa rivers. 3. C. LIMBATA.-Elytra white, suture, oblique line and dot green, exterior and basal edge bluish. Body green, varied with blue and purple, and with cinereous hair: antennae black at tip: labrum, and exterior and superior base of the mandibles, white: thorax hairy each side; indented lines violaceous: [142] elytra white, a green sutural vitta narrowed behind, an oblique irregular line behind the middle, and a small triangular dot before the middle, green; exterior edge and basal edge bluish-green or violaceous: beneath hairy: venter purplish. Length less than half an inch. This species, at first sight, resembles C. dorsalis, but is very distinct in its markings and in the form of its thorax. Found on the Nebraska (Platte) and Arkansa rivers. [Unknown to me.-LEc.] [Vol. III. OF PHILADELPHIA. 91 4. C. PULCHRA.-Elytra red-cupreous, highly polished, exterior margin purple, with two white dots. Inhabits Missouri Territory. Body greenish-purpurescent: vertex with a large cupreous spot: front very hairy: antennae, terminal joints black: labrum short, wide, hardly longer in the middle than each side; slightly 3-toothed: mandibles white; teeth, extremity and inferior surface, black: thorax, disk with a larger double purplish-cupreous spot: elytra reddish-cupreous very brilliant; exterior margin purplish-blue, with a humeral white dot and an angular white dot near the middle; punctures numerous, larger, and more profound towards the base, obsolete at tip: pectus hairy each side; postpectus and feet hairy. Var. a. Spot upon the humerus, none. Length less than seven-tenths of an inch. A remarkably splendid insect, and is a large species. It occurs in the country bordering the Platte and Arkansa rivers near the mountains. [143] 5. C. OBSOLETA.-Black; labrum and point on the elytra white; venter purple-black. Inhabits Missouri Territory. Body deep black, opaque: cheeks tinged with purplish, polished: antennae four basal joints dark purplish: labrum and exterior base of the mandibles white: thorax with two transverse indented lines connected by a longitudinal one; lateral margin with cinereous hair: elytra with minute profound punctures towards the base, impunctured towards the tip; a transverse white abbreviated line on the middle of the submargin, and an obsolete apical dusky-yellowish dot: venter tinged with purplish. Length four-fifths of an inch. Var. a. Black, immaculate. This large and fine species we observed to be not uncommon on the banks of the Arkansa river, near the mountains. It seems to be closely related to C. tristis Fab. The elytra exhibit in some lights a silky appearance. BRACHINUS Weber, Latr. B. CYANIPENNIS.-Testaceous; elytra blackish-blue; venter dark reddish-brown. Length near seven-twentieths of an inch. 1823.] 92 ACADEMY OF NATURAL SCIENCES Body pale testaceous, with numerous minute hairs, which on the elytra are yellowish: head with a slight irregular frontal impressed line each side: antennae brown at tip: thorax with a longitudinal impressed line from the head to the scutel: elytra black-blue, [144] with very obtuse hardly impressed grooves: venter testaceous or blackish-piceous. This species was found by Mr. Nuttall in Missouri, and I have since observed great numbers of them near Engineer Cantonment. These chiefly occurred during the winter, in a quarry from which building stone had been taken for the use of Camp Missouri. They were found hybernating in the fissures of the rocks. It differs from the B. fumans in being much inferior in point of size, in this respect approaching nearer to B. crepitans of Europe. The greatest width of the thorax is much more considerable in proportion to the shortest diameter, than that of the fumans, and of course the thorax appears proportionally wider before. The color, also, of the head and thorax is different, and the elytra are far more slightly grooved. It possesses the singular power of crepitating common to its congeners. FERONIA Latr. 1. F. SUPERCILIOSA.-Apterous; black, impunctured; elytra tinged with purplish; basal thoracic lines dilated. Length nearly two-thirds of an inch. Body black, impunctured, glabrous: antennae surpassing the base of the thorax, with brownish hair towards the tip; frontal groove much dilated: labrum and palpi piceous, the former emarginate; thorax wide before, much marrowed behind; dorsal [ 145 ] line distinct, basal lines dilated; a very distinct anterior transverse line; lateral edge rectilinear from near the middle to the posterior angles; posterior angles rounded; base wider than the petiole: elytra tinged with purple; striae profound, impunctured; interstitial lines convex: beneath tinged with piceous. This species, which seems to belong to the genus Pterostichus of Bonelli, is closely allied to that which I have described under the name of stygicus, but the thorax is differently formed, being much wider before, the antennae longer, frontal grooves more dilated, the elytra of a different color and more obtuse. [Vol. III. OF PHILADELPHIA. 93 [This is the same as F. moesta Say, Trans. Am. Phil. Soc. 2, 42.-LEc.] 2. F. HEROS.-Apterous, black; mandible striated; thorax contracted abruptly at base, posterior angles acute; elytral striae slightly impressed, punctured. Length rather more than nine-tenths of an inch. Body black and glabrous: mandibles much and deeply striated: thorax large, convex, rather abruptly contracted at the basal margin; dorsal and anterior and basal lines distinct, basal margin depressed, near the angles rugose; an elevated line on the basal margin near to, and parallel with, the lateral edge; basal angles rectangular: elytra very slightly striated; strive acute, punctured, punctures obsolete towards the tip; interstitial lines flat: beneath black. Brought from the Arkansa by Mr. Thomas Nuttall. It is the largest native species I have seen of this genus, and is probably referable to the genus Pterostichus of Bonelli. [Belongs to Evarthrus Lec.-LEO. [146] 3. F. MACULIFRONS.-Black; thorax narrower than the elytra; vertex with two obsolete piceous spots; elytra with acute impunctured striae. Length more than two-fifths of an inch. Body black, glabrous: vertex with two obsolete piceous spots, placed near the eyes, and very distinct in a particular exposure to the light: antennae piceous, the joints paler at their bases, towards the tip with light brownish hair: palpi, tip of the mandibles and of the labrum piceous, the former tipped with pale yellowish: thorax narrower than the elytra, longitudinally suborbicular; lateral edge a little recurved, particularly at the hind angles, which are not excurved, but obtusely rounded; dorsal line and anterior transverse line impressed, basal lines almost obsolete in the concavity of the lateral base, which is not rugose: elytra with a very slight cupreous reflection; strise acute, impunctured, interstitial lines flat: all beneath piceous. This insect was found in the Arkansa Territory by Mr. Thomas Nuttall. It is so closely allied to the species which I have named placida, as not to be, at first sight, distinguished from it; nevertheless, on comparing it with that species, it will be discovered 1823.] 94 ACADEMY OF NATURAL SCIENCES to be distinct by the spots on the vertex, the somewhat differently formed thorax, and by the perfect smoothness of the cavities of the lateral angles, which have not the slightest appearance of rugosity. [A Platynus of the division Agonum, which I have thus far failed to identify.-LEC.] 4. F. SCUTELLARIS.-Black; posterior thoracic angles rounded; region of the scutel much impressed. Length two-fifths of an inch. [147] Body depressed, black, immaculate; antennae black; thorax with a narrow margin; dorsal line distinct; basal lines dilated, so as to resemble large impressed spots; lateral edge regularly arquated, not excurved behind; basal angles rounded: elytra, obsoletely punctured; interstitial lines a little convex; region of the scutel much impressed; humerus gibbous; coxse and tarsi piceous. 5. F. ERRANS. —Green, polished; beneath black: feet, base of the antennae, of the palpi rufous. Body above polished green: labrum dark reddish-purple: antennae fuscous, basal joint rufous; palpi fuscous; thorax obviously wider than long; dorsal line distinct; basal lines much dilated and with a few punctures: an obvious narrow margin, and reflected edge; lateral edge not excurved behind; posterior angles rounded; base much wider than the petiole: elytra with a very slight reddish reflection; striae very narrow, impunctured; interstitial lines flat: beneath black: feet rufous. This species rembles F. nutans Say, but may be distinguished by a shorter thorax, which is margined and at base wider. [Also a Platynus.-LEC.] 6. F. CONSTRICTA.-Apterous, black; thorax much contracted behind; elytra with punctured striae. Length half an inch. Body apterous, black; antennae fuscous, piceous at base; labrum and palpi piceous: mandibles striated obliquely: thorax convex, wider than long, rather abruptly contracted at the posterior margin, [148] which is depressed; dorsal, basal, and anterior lines distinct, impunctured, the former attaining the base; basal lines double; lateral edge much rounded, abruptly excurved [Vol. III. OF PHILADELPHIA. 95 at the posterior margin; basal angles rectagular, acute; base much narrower than the elytra: elytra with punctured strioe, punctures small; interstitial lines slightly convex; beneath dark piceous or blackish. The form of the body and the curvature of the thorax are very similar to those of F. unicolor Say, nevertheless it is a much smaller insect, the thoracic base is depressed and the posterior angles are acute, and the striae of the elytra are more deeply impressed than in that insect. It was found on the Arkansa river near the Rocky Mountains. It belongs to the genus Pterostichus of Bonelli. [Belongs to Evarthrus.-LEc.] ZABRUS Clairv. Z. AVIDUS.-Black; feet rufous; base of the thorax and stria of the elytra punctured. Length seven-twentieths of an inch. Body deep black: labrum deep piceous: antennae and palpi rufous: thorax short and wide, with a few punctures before, and numerous ones on the posterior depressed margin; dorsal line very distinct; elytra punctured; interstitial lines depressed, a little convex; beneath black: venter deep piceous at tip: feet rufous. [An Amara of the division Liocnemis, afterwards described as A. confinis Dej.-LEc.] [149] CALOSOMA Linn. Latr. I. C. OBSOLETA.-Brownish-black; elytrareticulated and with three series of impressed bluish spots. Inhabits Arkansa. Body brownish black: mandibles rugose and convex on the superior surface: thorax obtusely and minutely rugose, impunctured; region of the posterior angles indented; an abbreviated impressed dorsal line; posterior angles rounded, extended backward a little beyond the basal line: elytra reticulate; longitudinal lines slightly impressed, not more dilated than the transverse ones, which are mostly continuous, their points of intersection marked by a puncture; three series of impressed bluish or violaceous obscure spots on each elytron; lateral margin in a certain light very obscurely purplish. 1823.] 96 ACADEMY OF NATURAL SCIENCES Length seven-tenths of an inch. Found near the Rocky Mountains. [Afterwards described by Dejean as C. luxatum.-LEC.] 2. C. LUXATA.-Brownish-black; elytra reticulate; head and thorax minutely punctured. Inhabits Arkansa. Mandibles flattened above, rugose, with oblique lines: head punctured: antennae, second joint half as long as the third: thorax minutely punctured, punctures larger and confluent on the lateral margin; posterior angles rounded, extending backwards a little beyond the basal line; an impressed longitudinal line: elytra suborbicular, reticulate; longitudinal lines not more dilated or profoundly impressed than [150] the transverse ones, which are not continuous, the points of intersection not distinguished by a puncture; the three punctured strie obsolete, their traces hardly discernible in a certain light and not differently colored. Length more than three-fifths of an inch. This insect has the short, transverse thorax of Calosoma, but the proportions which the joints of the antennae bear to each other are similar to those of many Carabi: the transverse lines are dislocated by the longitudinal ones. [Belongs to Calisthenes: which however is not now adopted by many entomologists.-LEC.] CARABUS Linn. Latr. C. EXTERNUS.-Winged, black, margined with purplish; elytra with three series of obsolete punctures. Length one inch and three-twentieths. Body elongated, deep black: antennas brown at tip; thorax punctured, margined with bluish-purple; lateral edge regularly curved to the base: dorsal and basal lines distinct; basal angles obtusely rounded; elytra striate; strim well impressed, much narrower than the interstitial lines, and with conspicuous, definite punctures; interstitial lines convex, equal, the fourth, eighth, and twelfth each with a series of obsolete small punctures, which do not interrupt them; exterior margin bluish-purple. A large species, brought from Arkansa by Mr. Thomas Nut. tall. It somewhat resembles C. sylvosus, but is larger, the striae of the elytra are much more regular, exhibiting nothing of the gran[Vol. III. OF PHILADELPHIA. 97 ulated appearance [151] of those of that insect, and the curve of the exterior edge of the thorax is regular, or without any tendency to excurvature near the base. [Belongs to Calosoma, and subsequently described as C. longipenne Dej.-LEc.] BEMBIDIUM Latr. 1. B. COXENDIX.-Greenish-brassy, beneath green; tibia and anterior trochanters, testaceous; thorax, basal line oblique each side. Length one-fourth of an inch. Body greenish-brassy, polished: labrum green: antennse dull green, covered with light brownish hair; basal joint testaceous before and greenish behind: palpi greenish, hairy, testaceous on the inferior base: thorax with a green exterior margin; exterior edge excurved at base; dorsal line slightly impressed, narrow; transverse basal line very distinct; basal margin a little rugose, particularly near the angles; angles acute: elytra with a green margin; striae with rather large punctures; beneath dark green: coxwe tibia, and knees beneath, testaceous. Var. a. Feet entirely pale rufous. 2, B. INAEQUALIS.-Bronzed; elytra of unequal surface, and two impressed spots on each elytron. Length less than one-fourth of an inch. Body bronzed above; beneath blackish-green: base of the antennae and of the palpi pale rufous: thorax, dorsal impressed line, and anterior and posterior lines very distinct: elytra, surface uneven, with two very obvious dilated impressed spots on the third interstitial line; stria widely and profoundly [152] punctured, the fourth stria undulated: feet blackish-green, rufous at base. This is a very distinct species; it occurred near Engineer Cantonment. OMOPHRON Latr. O. TESSELATTUS.-Pale, varied with green; elytra somewhat tessellate with green. Inhabits Missouri. Body rufous, punctured; head green behind, between the eyes 1823.] 7 98 ACADEMY OF NATURAL SCIENCES a longitudinal and oblique dilated line united in the form of a W; labrum white: thorax with a green disk and longitudinal impressed line: elytra with punctured striae, green; margin, two undulated bands and tip, pale rufous; pectus and postpectus darker rufous: feet whitish. Length more than one-fourth of an inch. I observed this species in plenty on Elk-horn Creek. The elytra have a tessellated appearance in consequence of the undulations of the bands being subquadrate, particularly the two nearest to the disk. [Afterwards described by Dejean as O. Lecontei.-LEc.] COLYMBETES Clairv. C. vENUSTUS.-Reddish-yellow; thorax at tip and base black; elytra dusky olivaceous with a pale external margin, interrupted base and abbreviated subsutural line. Bodyreddish-yellow: vertex dusky: thorax, anterior [153] margin to the eyes on each side, and posterior margin as far as the middle of the base of each elytron, black: elytra dusky olivaceous or blackish; a yellowish exterior margin attenuated towards the humerus, and a whitish external submargin composed of three somewhat oblique approximate lines, of which the inner one is abbreviated before the middle; a dilated, subtriangular white line from the humerus to the middle of the base, where it abruptly terminates; a subsutural white line from near the base is attenuated and terminated before the middle; disk with two obsolete interrupted lines: venter each side dusky. Length one-third of an inch. Found many specimens in a pond near Bowyer Creek, Missouri. It is also an inhabitant of the Atlantic States. I think it probable that this is the Dytiscus interrogatus of Fabricius. [This was afterwards made the type of Copdotomus Say; it does not appear to differ from D. interrogatus.-LEC.] HYDROPORUS Clairv. H. PARALLELUS.-Black; elytra lineate with yellowish. Inhabits Missouri. Body black: head before and a small obsolete spot on the vertex, rufous: antenae pale at base, dusky at tip: palpi pale, tip [Vol. III. OF PHILADELPHIA. 99 black, thorax varied with reddish-yellow: elytra with several longitudinal reddish-yellow lines, the exterior and interior ones interrupted: feet pale testaceous. Length less than one-fifth of an inch. [154] This species, like many other species of this genus, varies in the number of visible lines of the elytra and in their being more or less interrupted, but the abbreviated lines into which they are sometimes interrupted do not form bands, and at least one line is continuous to near the tip, a character which distinguishes it from the following species. [Previously described as H. catascopium Say, Trans. Am. Phil. Soc. 2, 103, and subsequently as H. interruptus Say, ib,, 4, 445.-LEC.] 2. H. UNDULATUS.-Rufo-testaceous; elytra blackish-olivaceous, literate with testaceous. Inhabits Upper Missouri. Dytiscus undulatus Melsh. Catal. Body rufo-testaceous; thorax, anterior margin black on the middle, posterior margin black in the middle as far as opposite the middle of the base of each elytron: elytra blackish, an irregular marginal spot extends from the humerus to nearly onethird of the length of the elytron, and obsoletely communicates at its dilated middle with a band composed of two or three longitudinal abbreviated lines, of which the inner one is subsutural; a smaller, marginal, irregular literate band behind the middle, and an irregular spot at tip. Length more than three-twentieths of an inch. Found in a pond near Bowyer Creek, Upper Missouri. It is not uncommon in Pennsylvania. P3EDERUS Fabr. P. BINOTATUS.-iReddish-yellow; head, a part of each elytron and the tail, black; feet pale. Body pale yellowish-red, with numerous very short [155] hairs; punctured: head black, larger than the thorax: antennae and trophi pale; thorax longitudinally subovate, punctures dense: elytra each with a large black spot on the exterior side towards the tip: abdomen, terminal segment and tail black: feet whitish. 1823.] 100 ACADEMY OF NATURAL SCIENCES Length three-twentieths of an inch. Found near the Missouri above the confluence of the Platte. It is also an inhabitant of the Eastern States. [I do not know this insect. Erichson, Staphyl. 645, supposes it to belong to Sunius.-LEe.] OXYTELUS Gravenh. 1. O. PALLIPENNIS.-Testaceous; head black; tip of the elypeus elevated and bidentate; thorax wider than than long, with an impressed line. Body pale testaceous, punctured, with very short hairs: head black, punctures sparse before: eyes black, with a golden reflection: clypeus at the middle of the tip, elevated, prominent and bidentated: antennae and carina at base, rufous pale: mandibles porrected, piceous, bifid to the middle; superior segment or tooth rather shorter than the other: palpi pale: thorax wider than long, reddish-brown with an impressed dorsal line: elytra dusky at tip and on the sutural edge: feet whitish. Length about seven-twentieths of an inch. On the banks of the Missouri below the confluence of the Platte river. [This and the three following belong to Bledius.-LEc.] 2. 0. ARMATUS.-Pale reddish-brown; head black; carina at base of the antennae piceous at tip. [156] Female.-Body light reddish-brown, punctured, a little hairy: head black, punctures obsolete; an abbreviated, vertical carina over the anterior portion of the eye, terminating abruptly at the origin of the antennae, and piceous at tip; anterior angles of the clypeus reflected: antennae and palpi pale rufous: mandibles piceous: thorax length and breadth subequal, with a longitudinal impressed line; punctures sparse; edge blackish: elytra, punctures distinct, numerous; sutural edge blackish: thighs testaceous. Length from one-fifth to one-fourth of an inch. Male.-Rather paler than the female; a tubercle between the eyes: thorax with a longitudinal impunctured, dorsal line: tergum darker at tip. Length one-fifth of an inch. [Vol. III. OF PHILADELPHIA. 101 3. 0. MELANOCEPHALUS.-Pale testaceous; head and postpectus black; suture dusky. Body pale testaceous, or whitish: head deep black: antennae and mouth pale testaceous: mandibles unarmed: elytra, suture blackish: postpectus black. Length nearly one-tenth of an inch. Var. a. Abdomen reddish-brown. On the banks of the Missouri above the confluence of the Platte river. 4. O. FASCIATUS.-Blackish; elytra pale yellowish; abdomen reddish-yellow, obsoletely fasciate with dusky. Inhabits Missouri. Body blackish, punctured, hairy: head black, impunctured, covered with very minute granules: antennae and mouth testaceous; mandibles piceous: thorax piceous-black; rather large distinct punctures; posterior edge rounded without angles, and distinct from the elytra: elytra, pale yellowish, dusky at the interior base and suture; numerous rather large distinct punctures; tip obtusely rounded: beneath reddish-brown: feet rather paler: tergum reddish; segments each with a definite, dusky band at tip: venter, each segment with an obsolete blackish transverse line on the middle. Length less than three-twentieths of an inch. Found near Engineer Cantonment. ALEOCHARA Gravenh. A. BIMACULATA.-Black; elytra each with an obsolete, yellowish, subsutural spot behind. A. bimaculata Knoch in Melsheimer's Catalogue. Body black, slightly punctured, hairy: front each side excavated from the insertion of the antennae to the mouth: palpi pale, maxillaries dusky above: thorax each side and angles regularly rounded, slightly hairy; two longitudinal, dilated, hardly impressed, punctured lines behind: scutel transversely triangular: elytra not covering half of the tergum, with very numerous, prostrate hairs; a large obsolete, yellowish, subsutural spot at the tip of each: feet dark piceous towards the tips. Length less than one-fifth of an inch. Found above Fort Osage. [158] 1823.] 102 ACADEMY OF NATURAL SCIENCES TACHINUS Gravenh. T. ATRICAUDATUS.-Rufous, impunctured; head and middle of the antennae and postpectus black; elytra behind, and tip of the abdomen, dark blue. Body yellowish-rufous, impunctured, with few hairs; polished head black: labrum and mouth testaceous: antennae testaceous; from the fifth to the tenth joints inclusive, black: thorax with a few indistinct hairs: elytra with a large deep blue spot on each, the anterior edge of which curves from behind the humerus, to behind the middle of the sutural margin; a subsutural series of remote punctures, and a series exterior to the middle: postpectus black, with large, slightly impressed punctures: feet pale testaceous: abdomen with a few hairs, and distant, larger black ones on the posterior margins of the segments; terminal and anal segments deep blue. Length nearly one-fifth of an inch. Found on the Konza river. [Belongs to Boletobius; previously described as T. cinctus Grav.-LEc.] ANTHOPHAGUS Gravenh. A. BRUNNEUS. —-Reddish-brown; feet and abdomen paler; an impressed thoracic line and dot at base. Body reddish-brown, punctured, with numerous short hairs: head inequal, indented between the eyes and between the antennae: antennae, palpi, and feet testaceous: mandibles piceous at tip: thorax [159] densely punctured, subrotund; posterior angles rectangular; a dorsal impressed line, terminated on the posterior submargin by an impressed dot: elytra densely punctured, posterior lateral angles rounded, sutural tip acute: abdomen pale reddish-brown, segments margined round with dusky, a dusky spot near the tip of the tergum. Length less than one-fourth of an inch. On the banks of the Missouri above the confluence of the Platte river. [Vol. III. OF PHILADELPHIA. 103 BUPRESTIS Linn Latr. 1. B. CONFLUENTA. —— [Ante, 1, 60.] 2. B. LATERALIS.-Black; head and thorax dull brassy, the former canaliculate, the latter with a posterior dorsal and anterior lateral indentation. Inhabits Missouri. Body elongated, black, scabrous: head dull brassy, superficially punctured; a profoundly impressed line abbreviated before: antennae blackish: thorax dull brassy, somewhat scabrous; a round indented spot behind the middle, and an oblique profound oblong one each side, at the anterior termination of which the thoracic edge is dilated; basal edge sinuous: scutel black, subtriangnlar: elytra scabrous, entire, slightly indented at base: tail rounded. Length one-fifth of an inch. Distinguishable by the dilatation of the lateral thoracic edge. [Belongs to Agrilus.-LEc.] 3. B. ATROPURPUREUS.-Black, slightly tinged with bronze or purplish; elytra serrate and mucronate. Inhabits Arkansa. Body punctured: antennae black: labrum piceous: thorax with elevated obtuse punctures and slightly impressed dilated ones each side; an indented spot on the middle of the basal margin: elytra scabrous with minute reflected and depressed points; lateral edge regularly serrated; tip mucronate: beneath dark purplish. Length less than three-tenths of an inch. Taken near the Rocky Mountains. The color to the eye is black, but upon attentive observation it will be perceived to be tinged with purplish. [Belongs to Melanophila. —LE.] [160] 4. B. 6-GUTTATA.-Black-brassy; elytra each with three indented cupreous spots. Inhabits the United States. Buprestis 4-maculata Melsh. Catal. Body blackish with a strong brassy tinge: head punctured; a profound sinus each side for the reception of the antennae; tip emarginate: labrum green: antennae brassy-green: thorax short, transverse, densely punctured; not wider behind, angles rounded 1823.] 104 ACADEMY OF NATURAL SCIENCES scutel triangular, green: elytra with three or four elevated longitudinal lines on each, and three impressed reddish-cupreous spots placed one at the base, one rather before the middle, and the third behind the middle; edge minutely serrate. Length seven-twentieths of an inch. I have been under the necessity of applying another name to this insect, as that given by Mr. Melsheimer is preoccupied by a different species. We found this during our expedition to the Missouri, and it is also an inhabitant of the Atlantic States. [Belongs to Chrysobothris.-LEC.] 5. B. GIBBICOLLIS.-Black; elytra each with two large yellow spots. Inhabits Arkansa. Body black, with a slight violaceous tinge, and with very numerous very short hairs; punctured: thorax gibbous, arising into a very obtuse obsolete tubercle each side above; covered with dense hair; posterior edge rectilinear, angles rounded: scutel orbicular: elytra punctured, destitute of striae; posterior. edge finely serrated; tip entire; a very large [162] elongated spot extending from the base to the middle, and a smaller orbicular one towards the tip: venter violaceous. Length less than three-tenths of an inch. A very pretty insect; but a single specimen was procured. Can this be the B. volvulus Fab.? [A species of Ptosima subsequently described as P. luctuosa Gory.-LEc.] 6. B. GRANULATA.-Green, granulated; elytra with an elevated line, and serrodentate at tip. Inhabits Missouri. Body cylindrical, olive-green, granulated: head punctured, with a profound sinus each side for the reception of the antennae; tip rounded: eyes whitish, with a black oblong moveable pupil: thorax with an oblique indented line each side, and a longitudinal dorsal one; basal edge sinuated; scutel transversely elongated, with an impressed transverse line behind: elytra scabrous or granulated, without strive or punctures; an elevated longitudinal line, and an indented large spot at base; tip serrodentate. Length two-fifths of an inch nearly. [Belongs to Agrilus.-LEc.] [Vol. III. OF PHILADELPHIA. 105 7. B. VIRIDICORNIS.-Head and thorax red-coppery; antenna green; elytra obscure, entire. Inhabits Missouri. Body somewhat depressed: head reticulate, red-coppery: eyes rather large; antennae green: thorax transversely indented each side behind the middle; red-cupreous, reticulated; posterior edge rectilinear: scutel triangular: elytra obscure or slightly brassy, slightly rugose, destitute of strie, rounded at tip, entire or obsoletely serrated: beneath dark brassy, brilliant; tail rounded, entire. Length rather more than one-fifth of an inch. [Belongs to Anthaxia.-LEc.] [1631 8. B. GEMINATA.-Greenish, scabrous; thorax sub-inequal; elytra entire, indented at base. Inhabits Missouri. Buprestis viridis Melsh. Catal. Body greenish or dull cupreous, scabrous: head densely punctured; an indented line on the vertex: antenna blackish-green: thorax sub-inequal; a double obsolete indented spot placed longitudinally on the back, and a lateral oblique one; a carinate line at base near the posterior angles, which are acute; posterior edge sinuate; surface with numerous, somewhat irregular, transverse slightly elevated, abbreviated, confluent lines: elytra scabrous, greenish, tinged with violaceous. Length more than one-fifth of an inch. The B. viridis of Melsheimer is the same with this or a mere variety. I have been under the necessity of changing the name, his being already occupied. [A species of Agrilus.-Lec.] 9. B. DIVARICATA.-Greenish-cnpreous above, beneath cupreous; elytra attenuated and divergent at tip. Inhabits the United States. Head numerously and confluently punctured: mandibles black: eyes pale yellow, or brownish, with a black orbit, oval: thorax confluently punctured, subinequal, indented before the scutel: scutel orbicular, disk impressed; elytra striate, confluently punctured, and with some elevated blackish, abbreviated lines: tips narrowed, elongated, divergent; at the termination truncate, and 1823.] 106 ACADEMY OF NATURAL SCIENCES submucronate on [164] the inner side; beneath, excepting the venter, canaliculate. Length seven-tenths of an inch. Remarkable by the divarication of the tip of the elytra. It very much resembles B. lurida Fab., in general appearance. [Belongs to Dicerca.-LEc.] 10. B. LONGIPES.-Black; immaculate, surface granulated; elytra terminating in an abrupt short point. Inhabits the United States. Body deep black, immaculate; thorax with an obsolete indented line: scutel small, subangulated: elytra finely granulated: an obtuse, obsolete, elevated line from the shoulder to the tip; tip abruptly terminated by a small spine in the centre: beneath polished, slightly tinged with violaceous: tarsi of the intermediate and posterior feet elongated, as long or longer than the tibia; first joint equal to the three following ones conjunctly; fourth joint bilobate, very short. Length half an inch nearly. Found in Pennsylvania and the Western States. [A species of Melanophila, closely allied to M. atropurpurea (ante p. 103,) and considered by some as the European M. appendiculata.-LEc.] 11. B. CYANIPES.-Elytra at tip narrowed, entire and divaricated; scutel transverse. Inhabits Missouri. Body dark cupreous, tinged with greenish: head, before the antennae, green: antennae dark green: thorax confluently punctured: scutel large, angulated each side behind, and excavated in the middle: elytra with darker abbreviated, elevated irregular lines; tips very slightly recurved, divaricated, entire or obsoletely [165] truncate: beneath bright cupreous, not canaliculate; tail deeply emarginate: tarsi blue. Length two-fifths of an inch. This specimen was brought from the Missouri by Mr. Thomas Nuttall. It resembles the divaricata in the manner of terminating of the elytra. [Belongs to Poecilonota.-LEc.] 12. B. CAMPESTRIS. [Ante 1, 60.] [Vol. III. OF PHILADELPHIA. 107 MELASIS Oliv. 1. M. NIGRICORNIS.-Black, cylindrical, punctured; thorax with indented transverse and longitudinal lines. Inhabits Missouri Territory. Body deep black, opaque, immaculate, scabrous: [166] head with an impressed longitudinal line: clypeus with a very profound sinus over the insertion of the antennae, before which it is triangular: antenna, first and second joints simple; remaining ones dilated cordate, the inner lobe more prominent; terminal joint simple, oval, acute: palpi, terminal joint, oval: thorax convex, transversely quadrate, not narrowed before; a longitudinal indented line; two abbreviated somewhat oblique ones at base, And a transverse one on each side of the middle; anterior margin obsoletely tinged with reddish; an impressed point each side of the middle of the posterior margin: elytra striate, strive acute; interstitial lines convex, densely punctured: tibia piceous: tarsi rufous; the penultimate one a little dilated, hairy beneath, and extended beneath the base of the terminal one, but not bilobate. Length more than one-fifth of an inch. Of this species I found but a single specimen. It seems to approach nearest to Fabricius's description of Elater lacunosus, but it cannot be referred to that genus, as it is totally destitute of the pectoral spine and recipient cavity. The position of the head with respect to the thorax, is precisely as in Buyprestis. [A species of Hylochares.-LEC.] 2. M. RUFICORNIS.-Black; antennae, feet, and base of the elytra rufous. Inhabits Arkansa. Body cylindrical, deep brownish-black, with very short hairs; punctures very dense, appearing granulated: antennae robust, subfusiform; joints cordate, rufous; inserted into a very profound sinus of the [167] clypeus, which is somewhat dilated before: palpi yellowish: thorax with an impressed longitudinal line: lateral edges rectilinear from the middle to the tip of the posterior angles: scutel black: elytra striate punctured; basal half rufous: feet rufous: thighs dark piceous: tarsi, penultimate joint a little dilated, and extended beneath the base of the terminal one, but not bilobate. 1823.] 108 ACADEMY OF NATURAL SCIENCES Length more than one-fourth of an inch. A very distinct species from the preceding. Mr. Nuttall brought two specimens from the Arkansa. [A species of Tharops.-LEc.] ELATER Lin. 1. E. AREOLATUS.-Rufo-testaceous; head, scutel and elytral band black. Inhabits Mississippi. Body rufo-testaceous, hairy: head black: clypeus very short, obtusely rounded: antennaB longer than the thorax: thorax short, somewhat transverse: scutel black: elytra striate, punctured; region of the scutel and dilated band on the middle black: feet pale. Length less than one-fifth of an inch. 2. E. DORSALIS.-Ruffous; a thoracic fusiform line, two spots and a band on the elytra, black. Inhabits the United States. Body rufous, hairy, punctured: head deep black: clypeus prominent, rounded: antennae pale testaceous: thorax longitudinally oblong; a dilated, fusiform black dorsal line; posterior angles prominent: [168 ] scutel black: elytra striate punctured; an oblong spot before the middle of each, and a common band behind the middle dilated near the suture, black: feet pale. Length one-fifth of an inch. [I consider this as a Monocrepidius without tarsal lobes. Germar and Lacordaire place it in Cryptohypnus.-LEc.] 3. E. BELLUS.-Black; thorax with a rufous line; elytra rufous varied with black. Inhabits the United States. Elater bellus Knoch in Melsh. Catal. Body black, hairy, punctured: clypeus rounded before: antennae pale testaceous: thorax with a longitudinal vitta and posterior angles rufous; carinated; elytra rufous, varied with black abbreviated lines; tip black, enclosing a rufous spot; feet whitish. Length less than three-twentieths of an inch. Var. a. Anterior thoracic angles rufous. [Vol. III. OF PHILADELPHIA. 109 This insect is not uncommon in the Atlantic States, and is also found west of the Alleghany Mountains. [A true Monocrepidius.-LEc.] 4. E. RECTICOLLIS.-Pale testaceous, hairy; head blackish; lateral thoracic edge rectilinear. Inhabits Missouri. Body pale testaceous, with short dense hair: head blackishpiceous: antennae pale: clypeus rounded: thorax lateral edge rectilinear from near the anterior angles to the tip of the posterior ones: elytra profoundly striate, punctured: feet whitish. Length one-fifth of an inch. [Belongs to Adrastus.-LEc.] 5. E. OBESUS.-Brown, with yellow hair; thorax convex; body short, somewhat dilated. Inhabits Missouri. Body reddish-brown, with yellowish hair and [169] very minute punctures: head and thorax with polished yellow hair, and numerous exceedingly minute punctures; posterior angles prominent, excurved: scutel rounded hairy: elytra with scattered hairs, and obsoletely punctured striae; interstitial spaces slightly convex and with minute punctures: feet rufous. Length two-fifths of an inch. [Unknown to me; it is afterwards (Trans. Am. Phil. Soc.G6, 168,) stated to have the ungues strongly toothed. Cardiophori with this character are known, but none have yet been found in the United States. 6. E. ERYTROPUS-Reddish-brown, or blackish, punctured, hairy; posterior thoracic angles carinated; interstitial elytral lines punctured. Inhabits Missouri and Pennsylvania. Elater erytropus Melsheimer's Catalogue. Body reddish-brown, or blackish, with numerous short prostrate yellow hairs; punctured: head with large, profound, approximated punctures: antennae rufous: clypeus rounded, entire: thorax with large confluent punctures on each side, and small more distant ones on the posterior disk, much smaller than those of the head; posterior angles not excurved, but nearly rectilinear with the posterior half of the lateral edge of the thorax, 1823.] 110 ACADEMY OF NATURAL SCIENCES and carinated above; posterior edge slightly bidentate in the middle: scutel rounded at base: elytra with punctured striae, interstitial lines punctured. Length three-tenths of an inch. A species not distinguished by any remarkable peculiarity. [Belongs to Cardiophorus.-LEC.] 7. E. CONVEXA.-Thorax black, hairy; posterior edge of the thorax with a fissure each side, and tridentate [ 170] in the middle; elytra reddish-brown; feet rufous. Inhabits Missouri. Head and thorax not visibly punctured to an ordinary magnifier; covered with dense prostrate yellow hair: antennae rufous: clypeus rounded: thorax convex; posterior angles very short, carinated only on the exterior edge; posterior edge tridentate in the middle, and with a fissure on each side near the angle; scutel hairy, cordate, emargined at base: elytra reddish-brown, somewhat hairy, with punctured strise; interstitial lines impunctured: beneath reddish-brown, covered with prostrate hair: feet yellowish-rufous. Length more than three-tenths of an inch. Var. a. Black; feet dark rufous. Length less than threetenths of an inch. The interstitial lines of the elytra are totally destitute of punctures, at least none are perceptible even with an ordinary magnifier; the thorax is very convex, and equally impunctured, and marked by four fissures in the posterior edge. [Unknown to me; probably a Cardiophorus.-LEC.] 8. E. TRIANGULARIS.-Clypeus with a very profound sinus each side, for the reception of the antennae; elytra not striate. Inhabits Missouri. Body black, slightly hairy, minutely punctured: head with crowded minute punctures; a very profound sinus each side over the insertion of the antennae, anterior to which the clypeus is dilated; triangular and truncated at tip: antennae dark piceous; [ 171 ] half as long as the body; first joint cylindrical; second, small piceous; third as long as the fourth and fifth conjointly thorax convex; punctures very minute and numerous; lateral edges from near the anterior angles to the posterior ones, rectili[Vol. IIIo OF PHILADELPHIA. 111 near; elytra not distinctly striated, but irregularly punctured: feet pale rufous. Length rather more than three-twentieths of an inch. A small insect, remarkable for the very profound sinuses over the insertion of the antennae. It varies in having the elytra striated, and dull rufous at the base; the third joint of the antenne also is not so long as the two following ones together. [Belongs to Mllicrorhagus.-LEC.] 9. E. MA.NCUS.-Clypeus truncated; body punctured; thorax with an impressed line behind the middle; posterior angles slightly excurved. Inhabits Missouri. Body black, punctured, with short hair: head with large, profound dense punctures: clypeus elevated, emarginate each side near the antennae, and truncated before: antennae and palpi rufous: thorax with an impressed line behind the middle; punctures numerous, profound, equal to those of the head, but not so dense; posterior angles prominent, very slightly excurved, carinate above; posterior edge slightly bidentate near the middle; an elevated, abbreviated line on the posterior margin near the lateral carina: scutel entire at base: elytra punctures of the striae oblong and approximate; interstitial lines with minute punctures furnishing hairs: feet rufous. [172] Length seven-twentieths of an inch. Var. a. Reddish-brown; thorax with a paler anterior margin. An obscurely characterized species, equal in size to conve:xa and mendica, but differing from them, besides other characters, in having the lateral elevated line on the posterior margin, and from the former by the conspicuously punctured and less convex thorax. [A species of Agriotes, afterwards described as A. truncatas and A. striatulus Mels.-LEc.] 10. E. BASILARIS.-Deep black; clypeus emarginate; first and second joints of the antennae and feet pale. Inhabits Missouri. Body deep black, hairy, cylindrical, polished, punctured: head subinequal: clypeus broad and subemarginate at tip: antennae, first and second joints pale rufous; thorax convex, with minute 1823.] 112 ACADEMY OF NATURAL SCIENCES equally distributed punctures, much more distant than the length of their diameters; lateral edge rectilinear from near the anterior angles to the tip of the posterior angles, which are piceous and rather short: scutel oval: elytra striate, the strim punctured: feet pale rufous. Length less than one-fifth of an inch. [Belongs to Limonius.-LEC.] 11. E. AURIPILIS. —Above with dense golden hair; clypeus emarginate; antennae black. Inhabits Arkansa. Head covered with golden hair: clypeus emarginate: antennae black; basal joint rufous: thorax convex, rather narrower at the base, covered with golden hair; a dorsal indented line; posterior angles [173] very short, not excurved, but complying with the curve of the lateral edge: elytra less densely covered with golden hair, excepting at the base; with punctured striae: beneath black, covered with very short prostrate somewhat silvery hair: feet dull rufous. Length two-fifths of an inch. I have seen but a single specimen, which was brought from the Arkansa by Mr. Thomas Nuttall. The hair is much more yellow and less dense than that of E. pennatus Fab. [Also a Limonius.-LEC.] 12. E. ABBREVIATA.-Black, hairy, short; thorax convex, with an impressed longitudinal line; clypeus rounded. Inhabits Missouri. Body short, thick, punctured, hairy: head with profound but dilated punctures; clypeus regularly rounded at tip, and not emarginate each side: antenna black, basal joint piceous: thorax convex; an impressed longitudinal linelfrom base to tip; punctures numerous, profound, small; posterior angles slightly excurved, carinated; posterior margin with a slight carina near the posterior angle: elytra with profound striae not perceptibly punctured; interstitial lines hardly punctured: feet testaceous. Length less than one-fourth of an inch. A short, dilated species; the impressed line of the thorax extends the whole length of that part of the body; the antennae are black. [Vol. III. OF PHILADELPHIA. 113 [A species of Cryptohypnus, afterwards described as C. silaceipes Germ.-LEc.] 13. E. BISECTUS.-Testaceous; head, thoracic line, and suture black. Inhabits Missouri. [174] Body densely hairy; punctured; rufo-testaceous: head black; clypeus prominent; rounded: antennae pale: thorax with a longitudinal, dorsal, black line; posterior angles prominent, excurved: scutel black, convex, rounded: elytra, striae indented; punctures rounded; suture with a common black line, not attaining the tip, dilated at the scutel and at its extremity: postpectus and venter black: feet whitish. Length one-fourth of an inch. [A Monocrepidius, unknown to me.-LEC.] 14. E. CORTICINUS.-Reddish-brown, hairy, punctured; clypeus prominent; rounded; lateral thoracic edge rectilinear. Inhabits the United Seates. Elater corticinus Knoch in Melsh. Catal. Body reddish-brown, hairy, punctured: clypeus prominent; rounded, or very obtusely subangulated before, and each side: antennae longer than the thorax: thorax, hair each side behind the middle prostrate inwards towards the middle; lateral edge perfectly rectilinear from the anterior tip to the tip of the posterior angles; basal margin with an obsolete indented line: elytra striate, punctured: beneath covered with short, prostrate hair: feet rather paler. Length about three-fifths of an inch. Remarkable for the perfectly rectilinear lateral edges of the thorax, and by having the hair of the posterior part of the thorax inclining inwards from each side towards the middle of the width. [A species of Cratonychus.-LEc.] 15. E. SEMIVITTATUS.-Piceous-black; thorax obsoletely testaceous each side: elytra whitish, with a dusky suture and abbreviated line. [175] Inhabits Missouri. Body hairy, punctured, dark piceous or blackish brown: thorax with an impressed dorsal line; lateral margin as far as be1823.] 8 114 ACADEMY OF NATURAL SCIENCES hind the middle, obsoletely testaceous; posterior angles excurved: elytra whitish; suture and line from the humerus to the middle of the disk, reddish-brown obscure: beneath piceous: feet paler. Length less than two-fifths of an inch. This species, at first sight, resembles E. nijricollis of Melsheimer's Catalogue; but it may be readily distinguished by the bicolored thorax, and the abbreviated and sometimes interrupted line on the elytra. [Unknown to me.-LEc.] 16. E. LOBATUS.-Pale brownish, covered with short hair; feet whitish, penultimate tarsal joint elongated beneath the terminal one. Inhabits Mississippi. Body brownish, covered with dense prostrate hair: clypeus broad, rounded before: antennae pale rufous: thorax very minutely punctured; posterior angles prominent, acute, subcarinate above: scutel convex: elytra with profound, punctured striae, punctures oblong, approximate: feet pale, yellowish-white; penultimate tarsal joint elongated and expanded beneath the terminal joint, and very obtusely rounded at tip. Length eleven-twentieths of an inch. This species is sufficiently remarkable by the singular expansion of the penultimate tarsal joint. It [176] is an inhabitant of Pennsylvania as well as of the Western States. [Previously described as E. lividus Degeer, belongs to Monocre1'idius.-LEc.] 17. E. NIGRICOLLIS.-Black; elytra whitish. E. nigricollis Melsh. Catal. Inhabits the United States. Head and thorax black, punctured, somewhat hairy; posterior angles carinate above: scutel black: elytra whitish or pale testaceous, with punctured strie: feet rufous. Length from two-fifths to nine-tenths of an inch. Var. a. Suture and tip of the elytra black. Specimens occurred on the Missouri. [The variety is E. linteus Say.-LEc.] 18. E. CYLINDRFORMIS.-Obsoletely metallic; antenna compressed; thorax with an impressed line. [Vol. III. OF PHILADELPHIA. 115 Inhabits the United States. E. cylindriformis Knoch in Melsh. Catal. Body subeylindric, slightly metallic, hairy, punctured: head confluently punctured: a prominent edge above the antennae, which disappears before; blackish-brasssy: antennae rufous, compressed, longer than the thorax: thorax blackish, tinged with brassy or violaceous; punctures profound, subequally distributed; an indented longitudinal line obsolete on the anterior margin; posterior angles prominent, excurved, slightly carinated: elytra with equally distributed hairs; dusky reddish-brown with a slight brassy tinge, and with punctured striae; interstitial lines with minute punctures furnishing hairs: beneath black, polished: feet and caudal margin rufous. Length nine-twentieths of an inch. This insect is not uncommon: it may be distinguished [177] from E. metallicus of Melsheimer's Catalogue by its much less dilated form of body. [Belongs to Limonius.-LEc.] 19. E. SANGUINIPENNIS.-Black; elytra sanguineous; tarsi piceous. Inhabits the United States. Elater sanguineus Melsh. Catal. Body black, polished, punctured: antennae, second aud third joints obscure rufous: elytra sanguineous, striate; interstitial lines punctured: tarsi piceous. Length three-tenths of an inch. This species approaches E. sanguineus Lin. I found a specimen in the State of Illinois, and it occurs occasionally in Pennsylvania. 20. E. RUBRICOLLIS.-Black; vertex and thorax rufous; elytra striated. Inhabits the United States. Elater rubricollis Melsh. Catal. Body black, punctured vertex obsoletely rufous: antennae, second joint rufous: thorax rufous, edged with black: posterior spines black; a slightly impressed longitudinal dorsal line: elytra striate; interstitial lines convex, punctured: postpectus, disk 1823.] 116 ACADEMY OF NATURAL SCIENCES obsoletely rufous: venter, with an interrupted obsolete rufous line on each side. Length eleven-twentieths of an inch. An inhabitant of Pennsylvania, which I also found in the State of Illinois. [178] LYCUS Fab. 1. L. TERMINALIS.-[Ante, 1, 45.] 2. L. SANGUINIPENNIS.-[Ante, 1, 45.] [179] LAMPYRIS Lin. 1. L. NIGRICANS.-Brownish-black; thorax with a rufous spot each side within the margin. Inhabits the United States. Lampyris nigricans Knoch in Melsh. Catal. Mandibles piceous: antennae compressed, very slightly serrated: thorax with a rufous oblong-oval spot each side, which does not attain either the anterior or basal edges; margin uninterrupted; disk black, elytra minutely scabrous, with about two obsoletely elevated lines: pectus with two rufous spots corresponding with those of the thorax. Length less than one-fourth of an inch. Var. a. Larger and deeper black. Length three-tenths of an inch. Differs from corrusca in being much more oblong, much smaller, the thoracic spots never attaining the edge of the thorax in any part. The variety is found on the Missouri. [Belongs to Photinus as amended by Lacordaire, Gen. Coleop. 4, 321.-LEC.] CANTHARIS Lin. Fab. 1. C. MODESTUS.-Black; front, feet, and margin of the thorax, yellowish; elytral margin and suture pale; second joint of the antennae as long as the third. Inhabits Missouri. [180] Body black; face, first joint of the antenna3, and base of the palpi yellowish: clypeus at tip dusky: thorax quadrate; anterior angles rounded: posterior edge and dilated lateral margin yellowish-rufous: elytra slightly and obtusely scabrous, somewhat [Vol. III. OF PHILADELPHIA. 117 polished; margin and suture whitish: wings black: feet and pectus yellowish-rufous: venter, posterior edge of the segments and lateral edge, yellowish: nails armed with a robust tooth beneath the tip. Length three-eighths of an inch. We have several species of this genus, which, in common with the individual above described, have a very distinct and robust tooth beneath the terminal nails of the tarsi. This character will serve as the basis of a very convenient division of the genus. [A species of Podabrus.-LEc.] 2. C. ANGULATUS.-Black; thorax rufous on the lateral margin. Inhabits the United States. Body black, not distinctly punctured: antennae, second joint half as long as the third; thorax, anterior and posterior angles equally rounded; lateral margin dull rufous: elytra obtusely scabrous, or with dilated, confluent, slightly impressed punctures nails with a robust tooth, or angle beneath. Length one-fourth of an inch. Var. a. Base of the antennae, mouth, and tibia, dirty rufous. Differs from C. diadema Fab., which I suppose to be synonymous with C. angusticollis Hellw. in Melsh. Catal., in being smaller in the proportions of the second and third joints of the antennae, &c. [A true Telephorus.-LEC.] [181] 3. C. BASILARIS. —Blackish; thorax rufous, with a black spot; elytra, margin, tip, and suture, yellowish. Inhabits the United States. Cantharis Pennsylvanica Knoch in Melsheimer's Catalogue. Head black, confluently punctured: before the antennae a pale spot: antenna, joints pale at their bases: thorax short, transverse, rufous; a large black spot on the middle, which often attains the anterior and posterior edges; anterior edge rectilinear, not arquated: elytra minutely and confluently punctured; a yellow exterior margin, suture, and tip: beneath brownish-black: pectus and thighs pale: postpectus and venter generally with the segments edged with pale. 1823.] 118 ACADEMY OF NATURAL SCIENCES Length from two-fifths to more than half an inch. One of our largest species. As it is very distinct from the Pennsylvanicus of Degeer, I take the liberty of changing the name given by Professor Knoch. [Also a Podabrus.-LEC.] 4. C. FRAXINI.-Entirely brownish-black, immaculate. Inhabits the United States. Necydalis fraxini Melsh. Catal. Body black: head, a spot before the eyes, and mandibles, yellowish: palpi piceous: thorax with a minute angle at the basal angles: elytra obtusely scabrous, or with dilated, confluent, slightly impressed punctures, forming irregular transverse lines: feet blackish-brown. Length nearly one-fourth of an inch. [A Telephorus, afterwards described by me as T. nigrita.LEC.] [182] 5. C. RUFIPES.-Black; thorax margined with rufous; elytra with a pale margin and suture. Inhabits the United States. Cantharis rufipes Melsh. Catal. Body black: head, spot before the eyes and mandibles yellowish: palpi pale piceous-brown: thorax with a much dilated rufous lateral margin: elytra with a pale yellowish exterior margin, tip, and suture: feet pale yellowish: thighs in the middle black. Length one-fourth of an inch nearly. Var. a. Exterior margin of the elytra only, yellowish. [Also a Telcphorus.-LEC] 6. C. BILINEATUS.-Rufous; elytra black; thorax with two black lines. Inhabits the United States. Cantharis marginalis Knoch in Melsh. Catal. Body pale rufous: head a band between the eyes, antennae, excepting the basal joint, and palpi, black: thorax with two parallel abbreviated dilated black lines: elytra black; exterior basal margin pale: postpectus behind the intermediate feet black: tibia and tarsi black. Length seven-twentieths of an inch. [Vol. III. OF PHILADELPHIA. 119 I change the name, as that of Knoch has been previously employed for a different species. [Also a Telephorus.-LEC.] MALACHIUS Latr. 1. M. TRIcoLOR —[Ante, 1, 107.] [183] 2. M. NIGRICEPS.-[Ante, 1, 108.] [184] 3. M. NIGRIPENNIS.-[V. M. otiosus, ante, 1, 109.] 4. M. VITTATUS.-[Ante, 1, 108.] [185] 5. M. CIRCUMSCRIPTUs.-Black; thorax rufous each side; elytra margined with yellow. Inhabits Missouri. Body black; region of the mouth and basal joints of the antennee beneath pale; thorax rosaceous, with a dilated spot attaining both extremities: elytra margined all around, excepting at base, with yellow: thighs pale at base: venter, segments edged with whitish. Length less than three-twentieths of an inch. [Belongs to Anthocomus.-LEC.] 6. M. BIPUNCTATUS.-[Ante 1, 107.] [186] PTILINUS Fabr. Latr. 1. P. RUFICORNIS.-Black; antennae, tibia, and tarsi, rufous; antennae with much elongated processes. Inhabits Kentucky. Body black, immaculate, rugose with minute, slightly elevated, acute tubercles; head with a very slightly elevated longitudinal line on the vertex: eyes black-brown: antennae, the processes very much elongated and the joints short; rufous: tibia and tarsi rufous: elytra with numerous impressed punctures, which are irregular near the base, and hardly arranged into strix near the tip: thorax convex, elevated. Length three-twentieths of an inch. 2. P. SERRICOLLIs.-Blackish; elytra chestnut, sericeous; feet pale. Inhabits Missouri. Blackish-brown, sericeous, punctured: head with minute, tubercles: eyes deep black: antennae pale rufous; seven secund an1823.] 120 ACADEMY OF NATURAL SCIENCES terior processes, each one longer than its respective joint; palpi whitish: thorax slightly convex, deflected at the anterior angles; basal edge sinuate, minutely dentate, and with three small salient angles over the scutel; posterior lateral angles acute: scutel distinctly cordate: elytra rather pale chestnut-brown, with slightly impressed punctured strive: beneath rufous: pectus each side black. Length one-fourth of an inch. [187] ANOBIUM Fab. A. CARINATUM.-Brown; thorax carinate behind; elytra punctate striate. Inhabits Mississippi. A. pertinax Melsheimer's Catalogue. Body brown: eyes black: antennae and palpi rufous: clypeus,. labrum, and base of the mandibles, piceous; the latter tipped with black: thorax declivous towards each margin; carinate behind, with an impressed line terminating at the carina; carina dilated and bifid near the middle of the back; an oblique obsolete abbreviated line near the posterior angles; lateral edge about half as long as the central diameter: scutel rounded at tip: elytra profoundly striate; striae obtuse, punctured: punctures transverse, dense: beneath blackish-brown. Length more than one-fourth of an inch. Found on the Missisippi above the mouth of the Ohio. This species approaches A. pertinax Fab., but (as Mr. J. F. Melsheimer, in a letter to me, remarks) it is longer, the thorax differently formed, and always destitute of the fulvous spots sometimes so remarkable in the European specimens. ENOPLIUM Latr. 1. E. MARGINATUM. [Ante 1, 89.] [ 188] 2. E. THORACICUM. [Ante 1, 90.] 3. E. 4-PUNCTATUJM. [Ante 1, 90.] [189] TRICHODES Fab. CLERUS Latr. Leach. 1. T. ORNATUS.-Brassy-blackish; elytra with a humeral spot and two bands pale yellow. Inhabits Arkansa. [Vol. III. OF PHILADELPHIA. 121 Body dark brassy, slightly varied with a tinge of violaceous and bluish; hairy: antennae and palpi rufous: elytra somewhat rugous, impunctured; a large, somewhat irregular spot exterior to the middle of the base, and including a humeral black oval spot; a small longitudinal oval spot before the middle; an oblique band on the middle hardly attaining the suture, and another oblique band before the tip also hardly attaining the suture, pale yellow: tarsi dark rufous. Length seven-twentieths of an inch. Found near the Rocky Mountains. [190] CLERUS Fabr. 1. C. ROSMARUS.-Rufous; elytra with black and yellowish bands; rufous at base; feet and abdomen black; head immacuculate. Inhabits the United States. Clerus rosmarum Knoch in Melsh. Catal. Body rufous, punctured, hairy: head immaculate: eyes deep black: antennae duskyat tip: elytra rufous at base; a black band, before the middle, sometimes wanting or obsolete; a yellowishwhite band on the middle, covered with whitish hair, and pointing backwards at the suture; a dilated black band behind the middle; and a pale rufous tip, covered with pale rufous hair: tibia and venter deep black. Length one-fourth of an inch nearly. Observed in the State of Ohio. It also occurs in the Atlantic States. The tip of the elytra, as well as the band of the middle is of the same color with the hair which covers it. 2. C. NIGRIFRONS.-Rufous, elytra with black and cinereous bands, and rufous base: postpectus, venter and frontal spot, black. Inhabits the United States. Body rufous, hairy; punctures indistinct: head with a black spot between the eyes; eyes black: antennae and palpi blackishpiceous: elytra with a rufous base, occupying more than onethird of the length; a very narrow black band before the middle; [ 191] a narrow whitish band on the middle covered with cinereous hair, and curving backward at the suture; a dilated black band behind the middle; tip black, covered with cinereous 1823.] 122 ACADEMY OF NATURAL SCIENCES hair which conceals a whitish spot, sometimes wanting: feet, postpectus, and venter, deep black. Length about one-fourth of an inch. It inhabits the Atlantic States, and I have also observed it on the Ohio. 3. C. NIGRIPES. —Rufous; head immaculate; feet black; elytra rufous at base, and with black and cinereous bands. Inhabits the United States. Body pale rufous: head immaculate; eyes, antennae, palpi, and tips of the mandibles, black: elytra with a rufous base occupying more than one-third of the length; a very narrow black band before the middle, a narrow whitish band on the middle, covered with cinereous hair, and curving backward at the suture; a dilated black band behind the middle; tip black, covered with cinereous hair, which conceals a whitish spot which is sometimes wanting: feet black. Length less than one-fourth of an inch. This species is very similar to the preceding, and differs in having a rufous postpectus and venter, and immaculate front. It also resembles Clerus dubius Fab., but differs from it, if I am not mistaken in that species, by being much smaller; and besides other differences, by the central band of the elytra curving backward, and not towards the head, as in dubius. [ 192 ] 4. C. HUMERALIS.-Black; humerus with a large rufous spot. Inhabits the United States. Body black, hairy; head greenish-black; antenna pale, the three terminal joints forming an oval mass: palpi pale: thorax greenish-black, dilated each side before the middle into a very obtuse tubercle: elytra violaceous black, with dilated confluent punctures; a large humeral rufous spot: anterior tibia either entirely or only on the inner edge rufous. Length from more than three-twentieths to one fifth of an inch. From Missouri; and is also an inhabitant of the Atlantic States. [Belongs to Hydnocera.-LEC.] SILPHA Fab. Latr. 1. S. CAUDATA.-Black; with short cinereous hair; elytra sinuate at tip, three elevated lines and intermediate series of tubercles. [Vol. III. OF PHILADELPHIA. 123 Inhabits Missouri. Body black, above opaque and covered with dense very short prostrate cinereous hair: thorax with a few blackish dots which are not elevated: scutel with two large obsolete dark spots, lateral edge piceous: elytra with sparse shorter hairs than the thorax; three longitudinal elevated acute lines, on each of which the exterior one is shortest, and the interior one is sinuated at tip; interstitial lines with a series of elevated tubercles; tip sinuate. Length more than half an inch. [193] Found by Mr. Thomas Nuttall on the Upper Missouri, and by myself near the Rocky Mountains. It is closely allied to Silpha suciata, but the thorax is destitute of elevations. [Identical with the European S. lapponica.-LEc.] 2. S. RAMOSA.-Black; elytra with three elevated branched lines. Inhabits Missouri. Body black, confluently punctured, immaculate, dilated: thorax destitute of elevations: elytra, with three longitudinal elevated lines; with numerous small lateral branches, which pass over the interstitial spaces; interstitial spaces minutely scabrous, with elevated points. Length more than three-fifths of an inch. Next in magnitude to americana Fabr., but more closely related to inequalis, from which it is at once distinguishable by the branched lines of the elytra. Found by Mr. Thomas Nuttall on the Upper Missouri. 3. S. TRUNCATA. Elytra smooth; truncate at tip. Inhabits Arkansa. Body oblong, blackish-brown; numerous minute punctures, furnishing short black hairs: thorax plane; an oblique impressed line each side; basal edge profoundly sinuated: elytra dark reddish-brown; shorter than the abdomen; transversely truncate at tip; the exterior angles rounded; surface entirely destitute of elevated lines; a transverse slight elevation on the submargin behind the middle. Length three-fifths of an inch. I found but a single specimen of this insect near [194] the 1823.] 124 ACADEMY OF NATURAL SCIENCES Rocky Mountains. Its elytra are truncated like those of the Necrophagi [Necrophori]. It belongs to Wilkins' genus Necrodes. CATOPS Payk. C. BASILARIS.-Black, covered with very short, yellowish hair; elytra, brown, paler at base. Inhabits Missouri. Body black, covered with numerous short yellowish hairs: eyes fuscous: antennae blackish; two basal joints yellowish-white; eighth joint very small, transverse, shortest; preceding and three terminal joints largest, the latter somewhat piceous: thorax transverse-quadrate, convex, rather narrower before; lateral edge regularly arquated; basal and anterior edge subrectilinear; angles rounded: scutel triangular: elytra brownish, paler at base; a distinct subsutural impressed line: labrum and palpi pale piceous: beneath blackish piceous; feet dark piceous. Length fourteen-hundredths of an inch. Found under wood at Engineer Cantonment on the Missouri. CERCUS Latr. 1. C. PALLIPENNIS.-Black; elytra pale, testaceous. Inhabits Arkansa. Body deep black, punctured; numerous short yellowish hairs: antennae, pale, rufous: elytra, pale, testaceous, immaculate, transversely truncated at tip: [195] tergum, two terminal joints equal in length: feet and venter pale rufous. Length less than three-tenths of an inch. Taken near the Rocky Mountains. [A species of Carpophilus, afterwards described as C. floralis Er. The size given is erroneous, it should be three-twentieths. -LEC.] 2. C. NIGER.-Black, punctured, hirsute; mouth, antennae and feet, yellowish red. Inhabits the United States. Nitidula nigra Melsh. Catal. Body short, oval, brownish-black, hirsute, punctured; hairs very short, yellowish; punctures dilated, dense: head confluently punctured, punctures small: labrum piceous: antennae piceous, third joint but little longer than the second; clava [Vol. III. OF PHILADELPHIA. 125 dusky with pale hair: thorax much wider at base; anterior angles rounded, posterior ones acutely and prominently angulated, with an indented oblique line above; punctures dilated: scutel rounded at tip, base punctured, tip impunctured: elytra covering half of the abdomen, truncate or very obtusely rounded at tip; punctures dilated, distinct, forming regular, approximate series: feet yellowish-red, ciliate. Length about three-twentieths of an inch. Inhabits Missouri and Pennsylvania. [Also a Carpophilus.-LEc.] ENGIS Fabr. 1. E. CONFLUENTA [coNFLUENs].-Black; elytra testaceous, apex and about three spots on each black; margin black. Inhabits Missouri. Head, thorax and scutel black, punctured; elytra yellowish or testaceous; apex black; exterior edge undulated with black; a common line at base about [196] one half the length of the suture, with a small lateral spot; humerus, and larger spot on the middle of each elytron communicating with the margin, black. Length more than one-fifth of an inch. This species was found by Mr. Thomas Nuttall. [A species of Ips, afterwards, described as. Dejeanii Kirby, and I. sepulchralis Randall.-LEc.] 2. E. HEROS.-Black; elytra bifasciate with rufous, the anterior band with an angular black spot. Length three-fourths of an inch. Body black; thorax slightly punctured at the anterior angles, and with dilated confluent punctures in the indented basal lines: elytra impunctured with two broad rufous undulated bands, interrupted at the suture; basal band broadest, with an angular black spot near the humerus, and a common transversely oblongquadrate black spot behind the scutel. It occurs on the Missouri, and is a fine insect, probably one of the largest of the genus. In the colors and form of body it most strikingly resembles E. fasciata Fabr.,but it is much larger, and there is not the slightest oppearance of punctures on the elytra; the humeral black spot is angular, and its anterior angle is extended towards the humeral angle; the basal portion of the 1823.] 126 ACADEMY OF NATURAL SCIENCES basal band is extended very near to the scutel, so as the more completely to inclose the transverse black spot. In the fasciata the elytra are distinctly punctured in striae, the humeral spot is orbicular, and the basal portion of the basal band does not extend towards the scutel further than the middle of the base. In the Philadelphia Museum is a fine specimen of this insect, which was probably caught in Pennsylvania. [Belongs to Dacne.-LEC.] [197] BYTURUS Latr. B. UNICOLOR.-Reddish-yellow, hairy; thorax each side depressed; tergum dusky. Inhabits Arkansa. Eyes black; thorax, posterior angles broadly depressed and slightly reflected, the depression continued on the side, but narrowed towards the anterior angles; wings dusky. Length three-twentieths of an inch. This species is most closely allied to B. tomentosus of authors A single specimen was brought from the Arkansa by Mr. Nuttall. DERMESTES Linn. Latr. D. MARMORATUS.-Marbled with blackish-brown, and cinereous or ferruginous hair, with a large cinereous humeral spot. Inhabits the United States. Antennae reddish-brown: thorax indented before the scutel: pectus blackish: postpectus and coxe with dense white hair: feet blackish; intermediate and posterior thighs with a white band before; spot on the lateral basal margin of the elytra, large, angular: venter with dense white hair; anal segment and lateral spots black-brown. Length from three-tenths to nine-twentieths of an inch. This insect is of frequent occurrence in Missouri and Arkansa, and is a large species. [198] SCAPHIDIUM Fabr. 1. S. 4-GUTTATUM.-Black; thorax with an undulated series of large punctures; elytra with four rufous spots, anterior one panduriform. Inhabits the United States. [Vol. III OF PHILADELPHIA. 127 Scaphidium 4-guttatunm Knoch in Melsh. Catal. Body black: head with minute obsolete punctures; mouth and base of the antennae piceous: thorax obsoletely punctured: an indented undulated transverse line of large profound puncturesat base; elytra with a series of dilated profound punctures at base, abbreviated at the humerus; an impressed subsutural slightly erenated stria; two or three obsolete much abbreviated series of punctures near the middle, and two rufous spots, of which one is subbasal, transverse, panduriform, originating at the exterior edge and extending more than half across the elytron; the other spot subterminal, obtusely lunate. Length one-fifth of an inch nearly. Var. a. Elytra spots obsolete. 2. S. 4-PUSTULATUM.-Black; thorax with an undulated series of large punctures; elytra with four rufous obtusely lunate spots. Inhabits the United States. Scaphidium 4-pustulatum? Knoch in Melsh. Catal. This species is similar to the preceding, excepting that the anterior elytral spot is very obtusely lunate, being emarginate only on the anterior side, a character [ 199] which, as far as my observation has extended, is invariable. HETEROCERUS Bose. Fabr. 1. H. PALLIDUS.-Thorax livid-brown, margin whitish; elytra whitish, lineate, and spotted with dusky. Inhabits Missouri. Head dark livid: clypeus paler, transverse-quadrate, truncate before: labrum prominent: eyes black: antennae whitish: mandibles elongated, slightly arquated; exterior base deeply ciliated; a slight tooth and emargination before the middle; inner edge bidentate near the tip; posterior tooth small: scutel long, triangular, minute: elytra whitish, slightly striated; striae near the suture obsoletely dusky; three undulated, dilated, obsolete, dusky bands: feet white; anterior pair dilated, compressed, and furnished on the exterior and rounded tip with about thirteen prominent spines; spines of the posterior pairs of feet less robust: pectus and venter pale yellowish or whitish. 1823.] 128 ACADEMY OF NATURAL SCIENCES Var. a. Dusky; the bands occupy nearly the whole surface of the elytra, leaving only a few obsolete whitish spots. Length rather more than one-fifth of an inch. Very common on the Missouri. Near Engineer Cantonment I observed a great number of this species in October, flying in the evening, near a sand bar. I obtained a different species, a few years since, on Senipuxten, eastern shore of Maryland. [200] 2. H. PUSILLUS.-Dark reddish-brown impunctured, hairy, hairs short, rather rigid, reflected, whitish: eyes pale reddishbrown: beneath blackish; carina of the pectus piceous: thighs reddish-brown. Length less than one-tenth of an inch. This species was obtained on the shores of the Missouri river below the entrance of the Platte. [H]ELOPHORUS. E. LINEATUS.-Greenish; thorax with five longitudinal impressed lines; elytra grayish. Elophorus griseus? Herbst in Melsh. Catal. Head rugose with approximate elevated punctures, and tinged with bright green: eyes black: antenna pale testaceous; clava dusky pubescent: palpi pale testaceous, dusky at tip: mandibles varied with purple and green above: thorax greenish, sometimes varied with cupreous; rugose, with approximate elevated punctures; transverse-quadrate; anterior angles advanced, posterior ones acute; lateral edge excurved near the base; disk with five, equidistant, longitudinal, strongly impressed lines; scutel minute suborbicular, cupreous: elytra yellowish-gray or whitish-testaceous; striate, striae with dilated, transverse punctures; pectus reddish yellow: postpectus and venter dusky: feet pale testaceous. Length less than three-twentieths of an inch. Found in the river near Engineer Cantonment. The name of griseus has been applied to another species. It is a native also of the Atlantic States. [201] HYDROPHILUS Fab. 1. H. TRIANGULARIS.-Olivaceous-black; postpectus and sides of the venter with dull yellowish hair. Inhabits the United States. [Vol. III. OF PHILADELPHIA. 129 Hydrophilus ater? Melsh. Catal. Body elongate-oval, black, tinged with olivaceous: head with two diverging frontal series of impressed punctures; punctures before the eyes and on the orbits: antennae, palpi and suture of the clypeus yellowish: thorax with a few punctures each side, and an abbreviated oblique series of punctures each side before the middle: elytra, each with four series of punctures, the exterior one double: beneath black: pectus with very short dense yellowish hair before; a bifid prominence for the reception of the anterior tip of the sternum: postpectus covered by short dense yellowish hair: sternum grooved before, rounded at the anterior tip, and elongated, subulate, perfectly rectilinear behind: abdomen glabrous, with a triangular marginal spot of short yellowish hair on each segment. Length from one and one-fifth to one and two-fifths of an inch. I think this a different species from the H. ater of Oliv., inasmuch as no notice is taken, in the description of that insect, of lateral ventral triangles which are so conspicuous in our specimens. It is also a more elongated insect than Olivier's figure represents the ater to be; in this respect approaching [201] much nearer to his figure of oblongus, which, however, is said to have ferruginous thighs, and a but slightly canaliculated sternum. In a certain light, the elytra appear, under a lens, to be marked by seven or eight capillary reddish lines. It is rather rare in Pennsylvania, but I obtained several specimens near the Rocky Mountains. 2. H. OBTUSATUS.-Black, convex, rounded behind; sternum with a slight prominence at the anterior tip. Inhabits the United States. Hlydrophilus carabseoides Melsh. Catal. Body oblong-oval, convex, black: head, a lunate indented line of confluent punctures before the eyes on each side; orbits punctured: palpi and base of the antennae, dark rufous: thorax with a very much abbreviated line of impressed punctures each side before the middle, and a few lateral punctures: elytra very obtusely rounded behind; four series of punctures furnishing minute hairs, the outer one double: beneath sericeous, with minute yellowish hairs: pectus, prominence not bifid; sternum narrow and not canaliculate before, 1823.] 9 130 ACADEMY OF NATURAL SCIENCES slightly emarginate near the anterior tip; posterior moiety a little flattened, with an impressed line; posterior tip rounded and hardly extending beyond the base of the postpectus: feet dark piceous. Length from three-fifths to thirteen-twentieths of an inch. This species, which is found equally in Pennsylvania and on the Missouri, is certainly very closely allied to the H. caraboides of Fabr. The venter as [202] well as the postpectus of this species has a silky appearance in a certain light, occasioned by its minute dense hairs. The posterior termination of the body is more obtusely rounded than the head. [Belongs to Hydrochares.-LEC.] [203] 3. H. NIMBATUS.-Black; head, thorax and elytra margined with yellowish. Inhabits the United States. Iydroph. nimbatus Knoch in Melsh. Catal. Head, two diverging punctured lines; margin yellowish; labrum, margin yellowish: palpi and base of the antennae yellowish: thorax, a much abbreviated impressed oblique line each side before the middle, and another rather longer one on the mid_ dle of the lateral submargin; lateral margin and anterior edge yellowish-white: elytra minutely punctured; lateral margin yellowish-white; beneath black, sericeous with dull yellowish hairs; feet pale: thighs black at base: tarsi dusky: pectus with a bifid prominence: sternum pale, a little dilated before the intermediate feet; punctured; somewhat scabrous near the anterior tip; behind the intermediate feet attenuated, with a slightly impressed line; posterior tip elongated, acute: venter, terminal segments with a rufous spot each side. Length about two-fifths of an inch. A very pretty species and not uncommon. [Hydrophilus lateralis Fab., is an older name of this species. -LEC.] SPiERIDIUM Fab. S. APICIALIS [APICALE].-Obscure, piceous; head black; elytra pale at tip. [204] Body blackish-piceous, punctured, glabrous, oval: head equal, deep black; punctures minute, distinct, dense: antennae picesus; clava obconical, black; maxillary palpi pale piceous, blackish at [Vol. III. OF PHILADELPHIA. 131 tip; thorax angles acute; punctures minute, subequidistant: scutel oblong-triangular, acute: elytra with nine punctured strife; exterior stria abbreviated at the middle; punctures equal, equidistant; tip and posterior outer margin pale reddish-yellow: feet piceous, blackish at base; anterior tibia with two robust spines at tip, and spinose cilae on the exterior edge. Length three-fortieths of an inch. Found at Engineer Cantonment. [Belongs to Cercyon.-LEC.] COPRIS Geoff. Latr. 1. C. ANAGLYPTICUS. —Thorax trituberculate; head horned. Inhabits the United States. Scarab. anaglypticus Knoch in Melsh. Catal. Body black, punctured: clypeus emarginate at tip; horn as long as the clypeus, slightly recurved, simple; punctures confluent: thorax three tuberculate, densely punctured on every part; tubercles placed in a transverse series, the intermediate one transverse and profoundly emarginate; a longitudinal obsolete impressed line above; a transverse indented cavity or puncture each side, beneath which is an oblique elevated line confluent anteriorly with the edge of the thorax; anterior angles emarginate: elytra with profound, [205] indented, crenate, dilated strife; interstitial spaces, punctured. Length seven-twentieths of an inch. This insect appears to be a general inhabitant of the United States; it is not unfrequent on the Upper Missouri and on the Arkansa. It is closely allied to Copris lunaris and emarginatus, but may be distinguished from either by the punctured interstitial spaces of the elytra. It seems also related to C. Ammon, but Olivier attributes to that insect the size only of Sinodendron cylindricun which is certainly less than half the magnitude of our insect. It also resembles the Janus of Panzer, but is much larger. The thoracic tubercles of the female are almost obsolete, and the horn of the head is transverse and much shorter than the head, but the other external characters are the same as those of the male. 1823.] 132 ACADEMY OF NATURAL SCIENCES 2. C. HTSTEROIDES.-Dark cupreous; clypeus emarginate; antennse yellowish. Inhabits the United States. Scarbseus histeroides Knoch in Melsh. Catal. Body punctured; above dark cupreous; beneath blackish-cupreous: clypeus with the punctures obsolete behind, and more distinct before; an impressed line from the anterior canthus of the eye to the lateral edge; anterior edge bidentate, teeth slightly elevated and separated by an emargination: antenna yellow: thorax with an abbreviated impressed line from the middle nearly to the base, nearly obsolete on the disk and [206] anteriorly; lateral submargin with an impressed dot; lateral edge not angulated; elytra striate; stria profound, slightly punctured; interstitial lines flat and impunctured; anterior tibia with series of yellowish cilae; exterior edge four-toothed, the posterior tooth minute or obsolete; terminal spine acute. Length more than one-fourth of an inch. This insect, which occurs in Pennsylvania, I also obtained on the Mississippi near Cape Gerardeau. [Belongs to Choeridium and is the same as Ateuchus capistratus Fab.-LEC.] 3. C. TRIANGULARIS.-Cupreous; head horned; thorax angulated; elytra striated and punctured. Inhabits Arkansa. Body dark reddish-cupreous: clypeus reticulate, margined with black; horn as long as the thorax, recurved, black: thorax minutely scabrous, with a depressed triangular plane upon the surface; the lateral angles very prominent; a large submarginal lateral puncture: elytra regularly striate, with impressed slightly punctured lines; interstitial spaces punctured. Length less than four-fifths of an inch. This species is somewhat larger than C. carnifex, to which it is closely allied, but differs in color, in having an impressed stria upon the elytra, and punctured interstitial spaces; whereas in carnifex the sides of thorax and the elytra are green, and the latter have elevated strive, and irregular elevated abbreviated lines on the interstitial spaces. [A species of Phanaeus; a variety of it was afterwards described by me as P. torrens.-LEc.] [207] [Vol. III. OF PHILADELPHIA. 133 ATEUCHUS Fabr. 1. A. NIGRICORNIS.-Black, minutely scabrous; clypeus sixtoothed, incisure of the posterior tooth much less profound than that of the preceding one; anterior tibia three-toothed. Inhabits the United States. Body deep black, immaculate, slightly scabrous with elevated points or minute lines; head with cupreous reflexions: clypeus six-toothed; the two anterior teeth more prominent, flattened, conic, slightly recurved; lateral ones smaller, more like serratures; the exterior one much the smallest, and separated from the preceding tooth by a slight incisure: antennat black; thorax convex, with cupreous reflexions; an obsolete, indented, longitudinal, obtuse line, near the base; posterior edge regularly arquated; lateral edge angulated in the middle; anterior margin profoundly emarginate for the reception of the head; elytra with numerous elevated points, and with obsolete impunctured striae: anterior tibia dentate upon the exterior edge, the three terminal teeth large. Length more than one-fourth of an inch. I observed this species near Cape Gerardeau, and in the intermediate country between that town and the Rocky Mountains; and as I formerly obtained two specimens in New Jersey, I think it probable that it inhabits a principal portion of our country; but it does not seem to be common anywhere. Those I observed in New Jersey were busily engaged in [208] rolling a small pellet of hog dung, which, however, was not shaped in the spherical form. [This and the two following belong to Canthon Ill. (Coprobius Latr.)-LEC.] 2. A. OBSOLETUS.-Cupreous polished; clypeus bidentate before; elytra obsoletely striated. Inhabits near the Rocky Mountains. Body entirely cupreous, polished, immaculate, with very minute punctures: clypeus slightly margined anteriorly with dull green; an oblique, slightly impressed, glabrous line before the eye; edge bidentate before, and with an obsolete remote tooth each side before the eyes: antennae blackish: thorax a little angulated each side on the edge: elytra obsoletely striated. 1823.] 134 ACADEMY OF NATURAL SCIENCES Length nearly one-fifth of an inch. This species was obtained on the river Platte near the Mountains. The punctures are so minute as not to be visible, but with the aid of a strong magnifier. 3. A. EBENEUS [EBENUS].-Black; clypeus six-toothed; incisure of the posterior tooth as profound as that of the preceding one. Inhabits Missouri. Body deep black, immaculate, scabrous, with slightly elevated, very numerous points: clypeus six-toothed; the two anterior teeth hardly more prominent; the fissure separating the posterior tooth more acute, and as profound as that of the preceding tooth: thorax convex; an obsolete, indented, longitudinal, obtuse line towards the base; posterior edge perceptibly projecting into a slight angle in the middle, lateral edge angulated in the middle, and with irregular denticles behind the middle. elytra with [209] obsolete impunctured strive: anterior tibia with three large teeth. Length two-fifths of an inch. This species very much resembles the preceding, from which it is, however, distinguishable by its superior magnitude, by the much more numerous small tubercles with which its surface is overspread, and by the much more profound fissure which separates the two posterior teeth of the clypeus from each other; from this fissure a distinct line passes upwards and intersects a similar transverse line drawn from the inner canthus of the eye, as in many species of this genus. SCARAB2EUS Latr. S. TRIDENTATUS.-Clypeus with an elevated tridentate line on the anterior submargin. Inhabits Arkansa. Body black, punctured: clypeus scabrous; an obsolete elevated abbreviated line in the middle; an elevated transverse tridentate line on the anterior submargin, confluent each side with the lateral reflected edge; tip much narrowed, emarginate, reflected: thorax, punctures generally diffused: scutel impunctured: elytra with punctured striae: beneath reddish-brown. Length three-fifths of an inch. The maxillae of this insect are horny, and dentated at tip, but [Vol. III. OF PHILADELPHIA. 135 the mandibles are short, unarmed, ciliated on the interior and exterior sides, and not [210] prominent; the labrum also is concealed; the labium is conical and prominent, and the tongue is concealed. The extremity of the clypeus has very much the appearance of the labrum, as the elevated and dentated line resembles a reflected termination of the head. A single specimen was brought from the Arkansa by Mr. Thomas Nuttall. [Belongs to Aphonus Lee. Proc. Acad. Nat. Sc., 8, 21.-LEc.] GEOTRUPES Latr. 1. G. EXCREMENTI.-Black-bronzed, mutic; an impressed rectangular line on the clypeus. Inhabits the United States. Scarabxeus excremeenti Knoch in Melsh. Catal. Body above black bronzed, punctured; beneath dark violaceous: clypeus confluently punctured; summit destitute of punctures; three very obtuse slightly elevated tubercles, of which one is above each eye, and consists of a more elevated portion of a raised line, which passes from above the eye to the edge of the clypeus, another tubercle is situated upon the middle; a profoundly impressed, abbreviated, longitudinal line between the eyes, which divaricates anteriorly into two lines that terminate at the tip of the elevated lateral line: thorax densely punctured each side, punctures rare on the dish; an impressed longitudinal obsolete line, from the base to the middle; an indented, obsolete spot on the lateral submargin, distinguished by more dense punctures; elytra profoundly striate, strie slightly crenate on the inner sides. [211] Length about eleven-twentieths of an inch. This species is common in various parts of the United States. It is found in Pennsylvania, and I obtained specimens at Engineer Cantonment, and at Cape Gerardeau. The tubercles of the head are not more distinct than those of S. stercorcrruis. It strongly resembles S. splendidtus of Fabr., Emiarophagus of Knoch, but differs from both in color, and from the latter, which it more closely resembles, by having the thoracic punctures less numerous, not so much dilated or so profoundly impressed; the 1823.] 136 ACADEMY OF NATURAL SCIENCES color of the miarophagus is dark piceous above and beneath, the legs are slightly violaceous. It is very probable that the excrementi is allied to the Blackburnii of Fab., if not the same. 2. G. FILICORNIS.-Rufous; thorax tridentate; clypeus with an elongated horn. Inhabits Upper Missouri. Body pale brownish-rufous: clypeus, anterior and lateral margins punctured, entire; horn elongated, linear, slightly recurved and compressed, longer than the greatest breadth of the head: thorax unequal; three tubercles, placed in a transverse series, the exterior ones compressed and longitudinal; intermediate tubercle transverse subemarginate; an indented line behind the middle tubercle, and a concavity each side: scutel triangular: elytra with punctured striae. Length one-fourth of an inch. I obtained it near the Council Bluff on the Missouri. Mr. T. Nuttall obtained specimens on the Arkansa. Belongs to the genus Odontmeus Megerle. [212] APHODIUS Illig. 1. A. BICOLOR.-Above black; beneath rufous; clypeus widely emarginate. Inhabits the United States. Scarabwus bicolor. Knoch in Melsh. Catal. Body above deep black immaculate, punctured: clypeus densely punctured, with a very slightly elevated, obtuse, obsolete, central tubercle; anterior edge very obtusely and widely emarginated: thorax densely punctured in every part, excepting upon the anterior edge which is of a pale color: elytra profoundly striated, stripe crenated; interstitial lines minutely punctured: beneath pale reddish-brown: pectus and antennae blackish: postpectus and venter punctured. Var. a. Elytra with a few obsolete hardly perceptible rufous spots. Length one-fifth of an inch. This insect is not uncommon in various parts of the United States. I have found it in Pennsylvania and near Cape Gerardeau on the Mississippi. [Vol. III. OF PHILADELPHIA. 137 2. A. STRIGATUS.-Black, clypeus convex on the disk; feet dark piceous. Inhabits the United States. Scarab. strigatus Knoch in Melsh. Catal. Body deep black, immaculate: clypeus with very minute punctures and larger ones at the base; anteriorly emarginate; middle of the disk convex: thorax with rather large punctures, which are remote on the disk and more numerous each side; posterior angles very obtusely rounded: elytra profoundly [213] striated, striae punctured; interstitial spaces convex: beneath black: feet piceous towards their extremities. Length nearly one-fifth of an inch. Rather a common species; it is found in Pennsylvania and as far west as the Rocky Mountains! It is longer in proportion to its width than A. terminalis. [A species of -Euparia.-LEc.] 3. A. TERMINALIS.-Black, tip of the elytra and feet rufous; clypeus trituberculate. Inhabits the United States. Scarableus stercoreus Melsh. Catal. Body black: clypeus with numerous distinct approximate punctures; three small tuberculi, placed in a transverse line, the intermediate one rather largest; anteriorly emarginate: thorax punctured, punctures subequal and equally distributed; posterior angles subangulated, not obtusely rounded: scutel slightly elevated into a longitudinal line on the posterior disk: elytra with punctured striae; interstitial spaces perfectly flat; tip with a large, common, obscure, rufous spot, sometimes obsolete, or divided into two distant ones: beneath blackish: feet rufous blackish at base. Length more than three-twentieths of an inch. The term stercoreus of Melsh. being preoccupied, I have applied to this species that of terminalis. It is readily distinguishable from our other species by the trituberculate clypeus, and the uniformly distributed punctures of the thorax. 4. A. TENELLA.-Black; elytra and feet rufous. Inhabits the United States. Scarabxsusfimetarius Melsh. Catal. [214] 1823.] 138 ACADEMY OF NATURAL SCIENCES Body black: clypeus truncate or slightly emarginate at tip: thorax punctured, lateral margins rufous, posterior angles obtusely rounded: scutel blackish: elytra rufous, immaculate, striate, the strife punctured: interstitial spaces very minutely punctured and but slightly convex: beneath blackish-piceous: feet rufous. Length more than three-twentieths of an inch. Var. a. Anterior and lateral margins of the clypeus rufous. This species is an inhabitant of Pennsylvania, I also obtained specimens of it in the vicinity of Engineer Cantonment on the Missouri. It is certainly not the same with the insect which Fabricius described under the name of finmetarius, as it is much smaller and the clypeus is not tuberculated. I have therefore adopted a new name for this species 5. A. CONCAVUS.-Thorax impunctured on the disk. Inhabits near the Rocky Mountains. Body black or rufous; beneath piceous: clypeus very obtusely emarginate before: thorax with rather large distant punctures each side; disk, impunctured; posterior angles very obtusely rounded: elytra, strie punctured; interstitial spaces impunctured, flat: anterior tibia strongly tridentate. Length three-tenths of an inch. This species occurred on the Arkansa river near the mountains. It is about equal in size to A. oblongus, but will not be readily confounded with that insect, as the disk of the thorax is impunctured, and the edge of the clypeus is unarmed. The lateral thoracic punctures in one specimen are obsolete. [215] 6. A. oBLONGoS.-Black punctured; clypeus with two tubercles in the anterior emargination. Inhabits the United States. Scarabeus oblongus Knoch in Melsh. Catal. Body black; beneath blackish-piceous: clypeus punctured, punctures confluent before; anterior edge emarginate and with a prominent acute tooth each side of the emargination; a transverse impressed line between the eyes, which is angulated in the middle: thorax punctured: elytra with punctured strise, and very minute punctures in the interstitial spaces. Length three-tenths of an inch. This species appears to be common to most parts of the United [Vol. III. OF PHILADELPHIA. 139 States. I have found it in Pennsylvania and near the Rocky Mountains. It is readily distinguished from our other species of the genus by the bidentate anterior edge of the clypeus and striate elytra. 7. A. FEMORALIS.-Blackish; margins of the elytra and of the thorax pale. Inhabits Missouri. Clypeus blackish-brown, minutely punctured, anteriorly emarginate: thorax with small punctures, which are rather more nunlerous each side; lateral margins dull yellowish-white, with a dusky dot: scutel black: elytra profoundly striated; strie dilated and transversely punctured; interstitial spaces convex, narrow; color dirty yellowish-white, with a dusky, common disk: beneath dark piceous: thighs pale, yellowish-white. Length less than one-fifth of an inch. [216] Var. a. Pale margin of the thorax narrow and destitute of the dusky spot. Found in considerable numbers on human excrement, at the Pawnee villages. [Continuation, pp. 238-282.] TROX Fab. 1. T. CAPILLARIS.-Clypeus rounded at tip, not reflected, elytra tuberculated. Inhabits Upper Missouri. Body cinereous-fuscous: clypeus with two elevated, obtuse tubercles; tip rounded; edge not reflected: thorax inequal, canaliculate, minutely hispid; posterior angles acute: scutel not contracted at base or middle: elytra with elevated, subacute, reflected tubercles placed in regular series, which are alternately smaller and separated by elevated capillary lines: punctures obsolete: beneath black: anterior tibia two-toothed, the terminal one emarginated. Length seven-twentieths of an inch. The clypeus of this insect is not angulated, nor reflected be1824.] 140 ACADEMY OF NATURAL SCIENCES fore; and the slightly elevated, acute or capillary, longitudinal interstitial lines distinguish it from other species. 2. T. SCUTELLARIS.-Thorax inequal, posterior [239] angles rounded; elytra with elevated polished and impressed lines. Inhabits Upper Platte. Body black, the depressions dusky cinereous: clypeus punctured, and with two distinct rounded tubercles; anterior tip angulated; edge reflected; thorax very unequal, punctured; lateral edge entire; posterior angles very obtusely rounded: scutel angularly contracted in the middle, acute at tip: elytra with somewhat capillary impressed striae, and transverse irregular impressed lines, dividing the surface into irregular longitudinallyquadrate, equally elevated, polished spaces; a few remote punctures: feet profoundly punctured; anterior tibia with a very obtuse crenation on the exterior edge. Length thirteen-twentieths of an inch. This I believe to be our largest species; like its kindred, it feeds upon decomposing animal bodies, and is an inhabitant of the superior portion of the extensive region through which the rivers Platte and Arkansa flow. It may be distinguished from its neighboring large species, by the entire lateral thoracic edge, and by the equally elevated polished spaces of the elytra. [Belongs to Omorgus Er.; which is not received as a distinct genus by many entomologists.-LEc.] CETONIA Fab. C. BARBATA.-Hairy, scutellate; elytra glabrous, pale reddishyellow, spotted with black. [240] Inhabits the United States. C. lanius Fab. l Of Melsh. Catal. tonksea Herbst. Body with-long yellowish-cinereous hair; clypeus entire, concealed by the hair; margin reflected: thorax covered with hair, beneath which it is cupreous, varied with blackish; anterior and posterior margin reddish-yellow, the latter emarginate for the reception of the scutel: scutel reddish-yellow varied with black, oblong-triangular, acute: elytra reddish-yellow, with numerous, irregular, black-brown points, and a few obsolete, remote, short [Vol. III. OF PHILADELPHIA. 141 hairs: beneath blackish-cupreous, very hairy: venter glabrous; segments margined with reddish-brown. Length rather more than half an inch. Not uncommon in various parts of our country, and is found at Council Bluff, on the Missouri, and upon the Arkansa. Mr. Melsheimer, in his catalogue, refers to lanius and tonkwea; but it disagrees with the descriptions of each of these insects, by having a very distinct and rather large scutel, inserted at the base into a thoracic emargination. Neither does it agree with the description of C. carnyfex, to which it has also been referred. [This is Cetonia inda, described by Linnaeus and Fabricius.LEC.] TRICHIUS Fab. T. EREMICOLA.-Chestnut color; thorax darker, with an excavation and an anterior elevated line. [241] Inhabits the United States. Trichius eremicola Knoch in Melsh. Catal. Head excavated between the eyes; edge elevated into a tubercle over the insertion of the antennae: anterior edge reflected: thorax with a transverse dilated excavation before the middle, anterior to which is a transverse, elevated, abbreviated line; punctures numerous and dense before, sparse behind: elytra smooth, simply punctured. Length one inch to one inch and a quarter. A rare insect, but occasionally occurring in various parts of the country. Mr. Nuttall brought a specimen from the Missouri. It is allied to T. eremita, but differs from it in many respects, particularly in the sculpture of the thorax and elytra. [A species of Osmoderma. - LEC.] MELOLONTHA Fab. 1. M. LONGITARSA.-Pale, cinereous-testacous; clypeus profoundly emarginate; tarsi elongated. Inhabits Missouri. Body pale, punctured, nearly glabrous: clypeus very densely punctured above, and sparsely so before; anterior edge very profoundly emarginate, the lobes concave above: thorax with numerous, slightly indented, irregular punctures; posterior angles subacute: scutel rounded at tip: elytra with irregular punctures: 1824.] 142 ACADEMY OF NATURAL SCIENCES beneath subglabrous: [242] tarsi elongated, anterior ones as long as the femora and tibia conjunctly: nails armed with a strong tooth near the base. Length nine-twentieths of an inch. It is probably rather rare. The form of the body is cylindrical and elongated; the tarsi are remarkably elongated. [A Lachnosterna.-LEC.] 2. M. LANCEOLATA.-Above with small lanceolate hairs or scales: beneath hairy. Inhabits Missouri and Arkansa. Body short, suboval, black or reddish-brown; nearly covered above with small lanceolate cinereous scales, which arise from impressed punctures: clypeus slightly emarginate, edge reflected: thorax a little dilated each side before the middle into a rounded angle; posterior angles acute; lateral edge slightly crenated: scutel rounded at tip: elytrawith minute elevated points between the scale-like processes; from two to four obsolete, subglabrous lines: pectus and postpectus downy: venter in the male, having a compressed tubercle on the centre of each of the three middle segments, and the penultimate segment much indented: nails one-toothed near the base. Length three-fifths of an inch. This insect is very short in proportion to its thickness; and the remarkable character of the compressed tubercles on the venter of the male readily distinguish it from other species. I found this species near the Rocky Mountains. [243 ] [Belongs to Lachnosterna; was made the type of a distinet genus, Tostegoptera Blanchard —LEC.] 3. M. HIRSUTA.-Castaneous, hairy; hair disposed in lines on the elytra. Inhabits the United States. M. hirsuta Knoch in Melsh. Catal. Head hairy; punctures dilated, crowded, confluent; anterior edge emarginate, slightly reflected: thorax hairy: punctures dilated large, irregular, confluent, with slightly elevated centres, each furnishing a rigid hair: lateral edge minutely crenate, dilated in the middle: scutel punctured each side, rounded at tip: elytra minutely rugose; hair disposed in five or six longitudinal [Vol. III. OF PHILADELPHIA. 143 series on each elytron; breast with short cinereous, prostrate hair. Length seven-tenths of an inch. Readily distinguishable by the regular series of hair on the elytra. Inhabits Pennsylvania; and I observed it on the Missouri. Mr. Nuttall brought specimens from Arkansa. [A Lachnosterna, previously described as M. hirticula Knoch. -Lee.] 4. M. PILOSICOLLTS.-Pale reddish-brown, hairy; thorax and base of the elytra with longer hair. Inhabits the United States. M. pilosicollis Knoch in Melsh. Catal. Body reddish-brown, covered with dense yellowish cinereous hair: head with elongated hair; anterior edge entire, rounded, reflected: punctures dilated, shallow, dense: antennae with scattered hairs; thorax with elongated hair and dilated, shallow, dense punctures: lateral edge dilated in the middle, subangulated; strise none; scutel punctured, [244] hairy, rounded at tip: elytra pale testaceous, densely and equally punctured, and covered with short, reflected, dense hair, and with longer hair at base: pectus and postpectus with long hair. Length half an inch. An inhabitant of various parts of the United States. I observed it on the Missouri and Arkansa. It may be readily distinguished from our other species by the remarkably hairy appearance of the body, and particularly of the head, thorax, base of the elytra and breast. I can hardly suppose this species to be the tristis of Fab., although the hairy appearance of the thorax corresponds with the description of that insect; but the elytra are punctured and hairy, and the scutel is not white; whereas the elytra of tristis are said to be glabrous, and the scutel white. [Also a Lachnosterna, but is M. tristis Fabr.-LEC.] 5. M. VESPERTINA.-Chestnut-brown; clypeus truncate, acutely emarginate each side; elytra sulcated, grooves punctured. Inhabits the United States. Af. vcspertina Melsh. Catal. Head truncate before, margin a little reflected, punctures 1824.] 144 ACADEMY OF NATURAL SCIENCES dense, a minute acute emargination each side near the tip: thorax with dense profound and subequally distributed punctures: scutel punctured, rounded at tip: elytra with dilated, shallow, confluently and irregularly punctured grooves; interstitial lines narrower than the groove, elevated, convex: beneath subglabrous, punctured. [245] Length nearly two-fifths of an inch. Mr. Nuttall obtained several species on the Missouri; it is also found in the Atlantic States. It varies in color, being perhaps generally light chestnut-brown; but it is sometimes dark chestnut, and I have a specimen that is nearly black. [Belongs to Serica of the division Camptorhina, and identical with C. atricapilla Kirby.-LEc.] 6. M. SERICEA. —Dusky, iridescent; elytra concavely striated. Inhabits the United States. M. sericea Knoch in Melsh. Catal. Body light reddish-brown, castaneous, dark-brown, or blackish, strongly iridescent: clypeus densely punctured; with sparse hairs; edge very slightly reflected, anteriorly emarginate: thorax with numerous small, nearly equal, and subequally distributed punctures; lateral edge not dilated in the middle: scutel longer than wide, densely punctured each side nearly to the tip; a longitudinal elevated line; elytra concavely striated, striae confluently punctured: anterior tibia bidentate. Length about seven-twentieths of an inch. This insect is beautifully iridescent, and by this character is readily distinguishable from all other North American insects of this genus that I have seen, with the exception of the M. iricolor nob., which is much smaller, black, and hairy on the head and thorax. It is an inhabitant of Pennsylvania, and we obtained specimens near Council Bluff on the Missouri river. [Also a Serica.-LEc.] [246] 7. M. IRICOLOR.-Blackish-brown, iridescent; with short hair. Inhabits the United States. f. micans Knoch in Melsh. Catal. Body blackish, distinctly iridescent: head hairy, punctured: [Vol. III. OF PHILADELPHIA. 145 clypeus on the anterior margin reflected and emarginate at tip: antennae bright yellow: thorax punctured, with short, numerous, yellowish hairs; a longitudinal, dilated, slightly indented line: elytra finely iridescent, with dilated, punctured, impressed striae: posterior feet robust. Length less than one-quarter of an inch. Knoch's name micans is pre-occupied. My excellent and ingenious friend Mr. John F. Melsheimer, makes the following remarks on this insect in a letter to me: " This insect is very nearly related to M. sericea, but it is still sufficiently distinct, to entitle it to the rank of a peculiar species. It abounds in hilly and mountainous situations, where, in the month of May, the time of the sexual union of the species, it may be seen flying about amongst the whortle-berry bushes, in such profusion, that in a very short time any number desired might be collected: whenever a female alights upon the surface of the ground, she is immediately surrounded by a number of males." [Also a Serica. —LE.] 8. M. 1O-LINEATA.-Above covered with a yellowish down; thorax trilineate, and elytra quadrilineate with white. Inhabits Missouri. [247] Body reddish-brown, covered with a very short spiniform down: clypeus quadrate, slightly wider at tip and truncate, emarginate in the middle; down yellowish, dusky on the tip, and whitish above the eyes: antenna pale yellowish-brown, glabrous: clava elongated, and composed of seven lamina: thorax with yellowish-brown, and three longitudinal lines of white down, of which the lateral ones are interrupted near the anterior tip: scutel with white down, and glabrous margin: elytra with yellowish down; a common sutural line, and three others upon the disk of each elytron of white down; an abbreviated oblique white line from the humerus: pectus and postpectus hairy: feet castancous, with white down; thighs and intermediate and posterior tibia, hairy behind; venter with white down, more dense upon the margins of the segments and in triangular spots each side. Length nearly one inch. A large and beautiful insect, which I first saw above the Paw1824.] 10 146 ACADEMY OF NATURAL SCIENCES nee villages on the Platte; several other specimens, however, occurred during our journey to the mountains. Its color varies from a light chestnut to a black; but the downy or spiny vesture is immutable, though it is very deciduous. It seems to be closely allied to the M. occidentalis; but if Oliver's description of that insect be correct, it is sufficiently distinct. According to him, that species has sometimes only " une ligne [248] longitudinale, blanche, au milieu du corcelet," and the scutel is "marque de deux taches blanchatres " whereas our insect has always three thoracic lines, and but a single scutellar spot. Mr. Nuttall also obtained specimens of this insect on the Arkansas. [A species of Polyphylla.-LEc.] LUCANUS Lin. L. PARALLELUS.-Mandibles one-toothed; elytra striate, punctured. Inhabits the United States. L. parallelus Knoch in Melsh. Catal. Body dark reddish-brown, with dilated punctures: mandibles with an elevated conic tooth arquated inwards, situated on the middle of the superior inner edge, and a smaller tooth on the middle of the inferior inner edge; elytra punctured, striate, stria with much dilated punctures; humeral angle mucronate; tibise, anteriors from four to seven-toothed, interior and posterior ones one-spined on the middle. Length four-fifths of an inch. Female destitute of the tooth of the mandibles. Very distinct from L. parallellipedus by the striated elytra. It is not uncommon in the Atlantic States, and as far west as the Rocky Mountains. [Belongs to Dorcus.-LEC.] [249] PLATYCERUS Latr. P. SECURIDENS.-Mandibles at tip securiform, and about sixtoothed; elytra striate. Inhabits the United States. Lucanus platycerus Melsh. Catal. [Vol. III. OF PHILADELPHIA. 147 Body blackish or dark reddish-brown, tinged with brassy, punctured: mandibles as long as the head; inner side with a robust emarginate tooth at base; an unarmed excavated interval in the middle, and a dilated somewhat securiform tip, armed with about six small teeth; exterior edge with a rounded lobe at base, and elevated angle near the tip: thorax margined, not distinctly sinuous before the posterior angles: elytra punctured; striae almost obsolete and punctured: anterior tibia with more than ten inequal very acute teeth. Length two-fifths of an inch. Very closely allied to Lucanus caraboides, and may possibly prove to be only a variety of that species; but as far as I have had an opportunity of comparing specimens, it differs from caraboides in color, in being rather more robust, and in being destitute of the obtuse sinus or truncation near the posterior angles of the thorax, which is observable in that species. The mandibles of the female are shorter than those of the male, the inner edge sometimes merely dilated and rectilinear, [250] terminating in an angle near the tip; the lobe on the exterior edge, also, is not apparent. It inhabits as far west as the Rocky Mountains. [Previously described by Weber as P. quercus.i —LEc.] ZOPHOSIS Latr. Z. RETICULATA.-Black; posterior angles of the thorax elongated; elytra irregularly reticulate. Inhabits near the Rocky Mountains. Clypeus emarginate before: antennae a little larger towards the three exterior joints not rounded but truncated at tip, the ultimate one subacute at tip, precisely resembling the corresponding joint of Eurychora as represented by Herbst, (pl. 5.) and not larger than the preceding joint: palpi, terminal joint a little larger than the preceding one: mentum widely emarginate, narrower at base, not concealing the base of the maxillae so much as that of Pimelia bipunctata: thorax curvilinearly emarginated before for the reception of the head; punctures very minute, distant; anterior angles obtuse, somewhat prominent; margined each side; posterior angles elongated, acute, closely embracing the humeral angles: scutel none: elytra with obtuse, elevated, irregular, somewhat reticulated lines. 1824.] 148 ACADEMY OF NATURAL SCIENCES Length nearly three-fifths of an inch. Several specimens of this interesting insect occurred under dried bison dung near the Rocky [251] Mountains. They were generally pruinose, or more or less covered with a whitish powder. In form they agree perfectly with the present genus, but the mentum is rather too narrow, and the terminal joint of the palpi is rather too much dilated to correspond perfectly with Mr. Latreille's character of the genus. [Belongs to Eusattus Lee.; a genus closely allied to Praocis Esch.-LEC.] PIMELIA Lat. P. ROTUNDA.-Black, with a few white hairs; anterior thoracic angles prominent, acute. Inhabits Arkansa. Body rounded, black, immaculate, with numerous white hairs arising from excavated punctures: head, anterior termination truncate, and much narrowed by the concavity of the lateral edge; over the insertion of the antenna, a prominent acute angle: antennae blackish-piceous; second, fourth, fifth, and sixth joints, equal; third slightly longer, obconic-cylindric; remaining joints more ovate, two or three terminal ones rather larger, the last acute at tip: palpi dark piceous, terminal joint truncate at tip: thorax very short and wide; anterior angles prominent, acute; punctures of the lateral margin much dilated, excavated, confluent; those of the disk smaller and distinct; lateral edge rectilinear: elytra with profound, excavated punctures at base, and smaller and less indented ones towards the tip. [252] Length less than one-fourth of an inch. This species we observed only within the distance of a hundred miles from the Rocky Mountains. In the form of the body it very closely resembles Olivier's figure of his P. biflata, the P. flavicollis of Fabricius. This new species I believe to be the first of this genus that has yet been found on this continent. The mentum is proportionally much larger than that of P. bipunctata, entirely concealing the mandibles even when viewed laterally, affording space only for a circumscribed play of the palpi, But the antennae differ from those of the bipunctata, which have the terminal joint smaller and shorter than the preceding, and [ ol. III OF PHILADELPHIA. 149 partly included in it; this character, however, Latreille, in the LeUgne Animal, does not state to be essential in this genus. The proportion which the terminal joint of the palpi bears to the preceding joints, is very similar to that of the palpi figured by Olivier, Vol. 3, No. 59, P1. 1, and although this terminal joint is proportionally larger than that of the bipunctata, yet it is not more dilated than that of Tentyria glabra, which is admitted into the same subdivision with Pimelia. The anterior tibiae are not dentated like those of Erodius, but are furnished with small spines on the anterior and posterior edges; the form of the thorax and abdomen agree with Latreille's definition of Pimelia in the R^gne Animal. [Belongs to Edrotes Lec.-LEc.] [253] AKIS Fab. A.? MURICATA.-Black; above with numerous small tubercles and setae; thorax and elytra with widely reflected margins. Inhabits Arkansa at the Rocky Mountains. Body oblong-oval, black; superior surface armed with numerous minute tubercles, from each of which arises a small, recurved, ferruginous seta: clypeus not reflected: antenne, third joint nearly equal to the two succeeding ones conjunctly; fourth, fifth, sixth, seventh, eighth, joints, obconic-cylindric; ninth, tenth, eleventh, rounded, the latter somewhat larger than the preceding one, and subacute at its tip: thorax transverse, dilated, and widely reflected each side, widest behind; anterior margin very profoundly and abruptly emarginated, the emargination receiving the head to the origin of the antennae, and rather too narrow to admit the free motion of the head upward; lateral edge simply arquated; posterior edge rectilinear in the middle, excavated each side; anterior and posterior angles subacute, the latter extending far backwards so as to cover the anterior angles of the elytra: elytra inseparably united, widely reflected each side and behind, the exterior edge continuing the course of the thoracic edge, without any indentation between them: wings none: scutel minute: tibia armed with minute spines. [254] Length thirteen-twentieths of an inch. 1824.] 150 ACADEMY OF NATURAL SCIENCES Occurred under dried bison dung, &c., near the Rocky Monntains. In addition to the above description of the antennae, I may add that the four terminal joints are somewhat more dilated than the others. The mentum, although broader than long and emarginate at tip, is proportionally smaller than that of Scaurus striatus, permitting a view of the mandibles to the base; the palpi are decidedly more dilated at tip than those of Tentyria glabra; in this respect approaching the family of Blapsidm. In form it seems to bear some resemblance to Eztrychora, but the antenna are eleven-jointed. As it does not entirely agree with any genus the characters of which Latreille has noted, it may be proper to remove it to the Blapside, under a separate genus, which may benamed Embaphion. It is still more closely allied to Helkus by its form, and indeed, if external characters only were to be considered, we would certainly be justified in referring it to that genus, but the fact of the maxillae being armed with a horny nail, excludes it entirely and absolutely from the family of which Heleus is a member. [The genus Embaplhion is well grounded, and is more nearly allied to Eleodes than to Akis.-LEc.] ASIDA Latr. 1. A. OPACA.-Black, opaque, scabrous: thorax with acute angles, and lateral reflected margin; elytra subinequal. [255] Inhabits Arkansa. Body black, opaque, scabrous with minute elevated points, which furnish very minute polished hairs: antenna, terminal joint as small as the second: thorax widely emarginate for the reception of the head; anterior angles prominent; lateral margin dilated, reflected; lateral edge arquated, excurved near the base: posterior angle very prominent, acute; posterior edge slightly deflected in the middle, recurved each side towards the angles: scutel minute: elytra with a somewhat inequal surface, destitute of distinct striae or punctures; lateral edge acute, a little reflected at base; humeral angles acute. Length three-fourths of an inch. Found near the Rocky Mountains. The joints of the antenna gradually become a little wider and shorter to the terminal one, which is less than half the size of the preceding joint. The [Vol. III. OF PHILADELPHIA. 151 mentum is much dilated and at tip emarginate, concealing the inferior portion of the maxillae, with the exception of a point near their base. The form of the thorax agrees with Akis, but agreeably to Latreille's definition of that genus, it cannot have a place there. [Belongs to Euschides Lee.; Stenomoropha 1 Sol.-LEc.] 2. A. POLITA.-Black, polished, glabrous; thorax with acute angles and reflected lateral margin. Inhabits Arkansa. Body deep black, polished, glabrous; head rugose with confluent punctures: labrum with [256] minute black hairs above and rufous ones on the anterior edge: thorax with minute, distant punctures; anterior edge concave; anterior and posterior angles acute, not prominent; lateral margin reflected, the edge arquated, not excurved near the base; basal edge nearly rectilinear: scutel minute: elytra slightly and irregularly rugose, destitute of punctures or impressed lines; exterior edge prominent and reflected near the base, rounded towards the tip; humeral angles acute. Length more than half an inch. Like the preceding species, and several of the Blaps, this species occurs under dried bison dung in the extensive region bordering the Rocky Mountains. The antennae and mentum are similar to those of A. opaca. [Also a Euschides.-LEc.] 3. A. ANASTOMOSIS.-Black, covered with short whitish hairs; elytra profoundly grooved. Inhabits Arkansa. Body black, clothed with short, dense yellowish-white hair: antennae hardly attaining the base of the thorax, third joint hardly longer than the fourth, penultimate joint largest, terminal one smallest and rufous: thorax, angles subacute, anterior edge concave; lateral margin hardly reflected; edge arquated, very slightly excurved near the base: basal edge rectilinear: elytra each with three profound and concave grooves at the base, of which the sutural one extends to the tip, and the two others terminate beyond the middle, [257] at the origin of two other much abbreviated grooves, which are confluent before the tip: humerus not rounded. 1824.] 152 ACADEMY OF NATURAL SCIENCES Length nine-twentieths of an inch. This very distinct species is much less robust than the preceding ones, and is considerably contracted at the junction of the thorax and abdomen. Under bison dung with the foregoing species. The terminal joint of the maxillary palpi of these three species, corresponding in its dilatation and form with the definition of the Fabrician genus Blaps by Mr. Latreille, in the Regn-e Animal, I have referred them to the genus Asida, as that to which they are most closely related, though the form of the body perhaps better agrees with Akis. [This is the type, and thus far, the only species of Pactostoma Lec. Journ. Acad. Nat. Sci. 2d ser. 4, 19.-LEc.] BLAPS Fab. Latr. 1. B. SUTURALIS. [Ante 1, 30.] [258] B ACUTA. [Ante 1, 31.] [259] 3. B. OBSCURA. [Ante 1, 32.] 4. B. IISPILABRIS. [Ante 1, 32.] [260] Length from three-fifths to nearly one inch. It is very possible that under this specific denomination, I have confounded two distinct species; but it seems probable that the three preceding species are subject to vary a little in the form of the thorax, and in size. I forbear separating them for the present. [This and the three preceding belong to the genus Eleodes. I do not consider this as sufficiently distinct from E. obscura.-LEc.] 5. B. CARBONARIA.-Black; elytra with five or six regular series of punctures; impressed striae none. Inhabits the margins of the Arkansa river. Body oblong, deep black, immaculate, punctured: head acutely punctured: labrum with black, rigid hairs: thorax subquadrate, punctures smaller than those of the head, and much more distant; lateral edge regularly arquated: anterior edge very slightly concave; posterior edge nearly rectilinear, a little arquated each side near the angles, which are obtuse: scutel slightly indented near the tip, impunctured: elytra with about six regular series of punctures, which are more distant from [Vol. III. OF PHILADELPHIA. 153 each other than the length of their diameters; impressed striae none; interstitial lines with a few [ 261 ] remote, acute, minute punctures; lateral margin irregularly punctured, rounded: thighs robust, mutic. Length seven-tenths to four-fifths of an inch. This species occurred near the Rocky Mountains. [Also an Eleodes. —LEc.] 6. B. AXTRICATA.-Black; elytra irregularly punctured, and destitute of impressed strie. Inhabits Arkansa. Body deep black, narrowed anteriorly, oblong-subovate, immaculate, punctured: head acutely punctured: labrum with rigid hairs: thorax subquadrate, punctures smaller than those of the head and more distant; lateral edge regularly arquated; anterior edge very slightly concave; posterior edge nearly rectilinear, a little arquated each side near the angles which are obtuse: scutel convex, impunctured: elytra destitute of striae, or distinctly regular series of punctures; scabrous with minute slightly elevated points, each of which precedes a puncture; lateral margin rounded. Length about half an inch. This species occurs in the country of the Arkansa and Platte. near the mountains. Mr. Nuttall also obtained specimens on the Upper Missouri. It is somewhat similar to the preceding species, but is shorter, and the sculpture of the elytra sufficiently distinguish it. [Also an Eleodes.-LEc.] 7. B. OBSOLETA.-Black; elytra striate, slightly scabrous; suture obsoletely reddish-brown. [ 262] Inhabits Arkansa and Missouri. Body oblong-subovate, deep black, punctured: head and thorax similar to those of the preceding species: elytra with impressed strise, which are slightly scabrous, with minute elevated points and impressed punctures; interstitial lines also punctured; sutural margin obsoletely reddish-brown. Length from half an inch to more than three-fifths. Like the preceding, this species inhabits the arid plains in the vicinity of the Rocky Mountains. The strie of this insect are 1824.] 154 ACADEMY OF NATURAL SCIENCES very obvious and impressed, and the sutural margin is reddishbrown, but this color is sometimes so indistinct as not to be perceptible but upon close inspection. As in the two preceding species the thighs are unarmed. [A species of Eleocles.-LEC.] 8. B. TRICOSTATA.-Black, with minute hairs; elytra each with three elevated lines. Inhabits Missouri and Arkansa. Body oblong-oval, black, immaculate, with numerous minute prostrate hairs: thorax with numerous minute punctures, furnishing hairs; transversely subquadrate; anterior edge concave; basal edge rectilinear, covering the base of the elytra; lateral edge arquated, near the posterior angles excurved; angles rounded: elytra scabrous, with small elevated points furnishing hairs; three elevated lines above; a common sutural one, and a lateral one on the edge; intermediate spaces broad, flat, not concave, [263] and sometimes with the appearance of a slightly elevated longitudinal line alternating with the others: epipleura simply scabrous. Length three-fifths of an inch. Not unfrequent beyond the Mississippi river. Very distinct. [Also belongs to Eleodes.-LEc,] 9. B. OPAcA.-Black, with minute hairs; elytra destitute of strive or conspicuous punctures, lateral edge acute, Inhabits Missouri and Arkansa. Body black opaque, oval-acute, with very minute prostrate polished whitish hairs: thorax with acute anterior, and obtusely rounded posterior angles; lateral edge not thickened or reflected, sublinear or hardly arquated: elytra destitute of striae and of conspicuous punctures; basal edge concave for the reception of the base of the thorax; humeral angles acute; lateral edge acute. Length two-fifths of an inch. The humeral angles so closely embrace the lateral base of the thorax, as to present hardly an interruption to the regularity of the lateral curve of the body. [This species, as noted by me, (Proc. Acad. Nat. Sc. 1858, p. 182,) has the first and second joints of the anterior tarsi of the [Vol. III. OF PHILADELPHIA. 155 male slightly dilated, and covered beneath with a dense brush of hair, it therefore constitutes a new genus, to which the name Promus, will belong. It differs altogether from Eleodes in its form of body.-LEC.] PEDINUS Latr. P. SUTURALIS.-Black; head and thorax minutely punctured; elytra with punctured strie, and small prostrate hairs. Inhabits Missouri. [264] Head rounded; anterior emargination small: labrum transverse: thorax, punctures distinct, dense: scutel rather large: elytra, striae impressed, punctured; interstitial lines with very minute indentations, furnishing small, pale prostrate hairs: wings none: beneath piceous-black: venter slightly granulated, with very short hairs. Length half an inch. I place this species in the present genus, from the circumstance of its being altogether destitute of wings, although the elytra are not united at the suture. [Unknown to me.-LEc.] OPATRUM Fab. Latr. O. INTERRUPTUM.-Blackish, with an obscure tinge of bronze; elytra with interrupted, punctured striaf. Inhabits the United States. Head black, finely punctured, punctures distinct; an obsolete indentation each side on the posterior margin: elytra brownish, tinged with bronze, with impressed striae irregularly interrupted, and with large impressed punctures; interstitial lines finely punctured: beneath brownish-black. Length nearly one-sixth of an inch. I have found this species in Pennsylvania and Arkansa. [Belongs to Blapstinus.-LEC.] [265] CRYPTICUS Latr. C. OBSOLETUS.- Glabrous, black; beneath piceous. Inhabits Arkansa. Body with very minute, hardly perceptible punctures: mouth pale testaceous: antenna rufo-testaceous, the joints all subequal 1824.] 156 ACADEMY OF NATURAL SCIENCES in length: thorax rather large; posterior angles nearly rectangular, slightly rounded at tip; posterior edge not undulated; elytra with obsolete, hardly obvious punctured strive: beneath piceous, more or less blackish: feet always pale piceous. Length three-twentieths of an inch. TENEBRIO Lin. Fab. Latr. 1. T. BADIUS.-Blackish-brown, oblong-oval, minutely punctured, thorax with larger punctures each side; elytra striate. Inhabits the United States. Ohio. Ten-ebrio badius Knoch in Melsh. Catal. Body black, with a reddish-brown tinge, and very minute dense punctures: head, anterior canthus of the eyes indented; a transverse, indented abbreviated line between the antennae: antennae black-brown, terminal joint dull ferruginous: thorax transversequadrate; anterior angles projecting, rounded; posterior angles acute, rectangular; lateral edge prominent, arquated: larger punctures [266] each side near the posterior angles: elytra with indented punctures stripe; interstitial lines convex, with numerous very minute punctures: beneath dark reddish-brown. Var. a. Reddish-brown. Length nine-twentieths of an inch. It is not unfrequently found in various parts of the country. [A true Tenebrio, but previously described by Beauvois as ilelops tenebrioides.-LEC. 2. T. INTERSTITIALIS.-Blackish-brown, elongated; thorax with an indented spot behind, and somewhat dilated lateral margin. Inhabits the United States. Ohio. Tenebrio depressus Melsh. Catal. Body blackish-brown, elongated, punctured; punctures rather large, confluent: head, lateral margin reflected: thorax quadrate, with an indented spot behind the middle; anterior angles prominent, rounded at tip; lateral margin slightly reflected; lateral edge very slightly arquated; posterior angles acute: scutel rounded at tip: elytra with indented striae, in which are dilated punctures; interstitial lines narrow and with a few minute tubercles. Length seven-twentieths of an inch. [Vol. III. OF PHILADELPHIA. 157 The tubercles which are situated upon some of the interstitial lines of the elytra, are very minute, and on some specimens nearly obsolete. It is an insect of frequent'occurrence. Mr. F. V. Melsheimer named it depressus, but as it does not agree with the description of the depressus as [267] given by Fabricius, Olivier, and Herbst, I have appropriated to it a new designation. 3. T. TERMINATUS.-Blackish-brown; terminal joint of the antenna fulvous. Inhabits Missouri. Body blackish-brown, punctured: palpi, antenna at base, and labrum, piceous; terminal joint of the antennae fulvous: thorax subinequal: a longitudinal impressed line; anterior edge concave: elytra profoundly striated, the strive punctured: scutel dark piceous. Length half an inch. The inferior part of the body varies in its depth of coloring, but is reddish-brown. The fulvous joint of the antenna, impressed thoracic line, and concave anterior thoracic edge, sufficiently distinguish this species from others of this country. [Belongs to Stenochia.-LEC.] DIAPERIS Geoff. Latr. 1. D. EXCAVATA.-Black: head excavated; and with two horns on the vertex; antennae rufous. Inhabits Arkansa. Head with two parallel, prominent, cylindrical, piceous horns, which project forward in a line with the body, and originate between the eyes: front between the horns deeply excavated; an indentation each side before: antennae and palpi pale rufous: mandibles black: thorax minutely punctured; [268] lateral edge nearly rectilinear, or but slightly curved: an indentation each side of the middle on the posterior margin: elytra with impressed punctured strise: beneath punctured: feet dusky rufous or piceous. Length less than one-fifth of an inch. The horns disappear in the female, and are supplied by two short tubercles. This species differs from viridipennis Fab., in color, in being destitute of the two small horns on the front of the clypeus, and in the direction of the horns of the vertex, which 1824.] 158 ACADEMY OF NATURAL SCIENCES in that species are nearly vertical. It was found by Mr. Thomas Nuttall. [Belongs to Platydenza.-LEC.] 2. D.? BIFASCIATA.-Reddish-brown; two bands on the elytra, and region of the scutel black. Body reddish-brown, punctured: head reddish-black: eyes black: palpi whitish: thorax with a dusky obsolete spot on the middle, and another on each side; angles rounded; punctures very minute, dense: elytra yellowish-fulvous, with punctured strife: a broad band in the middle, another near the tip, and scutellar region, black: feet pale reddish-brown. Length less than one-tenth of an inch. Found at Engineer Cantonment. [Belongs to Alphitophagus.-LEC.] CISTELA Fabr. Latr. 1. C. AM(ENA.-Sanguineous; head, elytra, and feet, black. Inhabits Arkansa. [269] Body minutely punctured: head with a transverse indented line between the antennae: mouth beneath, excepting the palpi, pale sanguineous: elytra minutely rugose, and with punctured striae. Length seven-twentieths of an inch. [Probably belongs to Xystropus Sol., but I am not certain to what genus it should be referred.-LEc.] 2. C. BREVIS.-Black; antennae, palpi, and feet, rufous. Inhabits Pennsylvania. Cistela rufipes Melsh. Catal. Body somewhat dilated, wide, and rather short; head indented on the front and on the hypostoma; labrum piceous: antennae and palpi rufous: thorax with a longitudinal, submarginal, abbreviated indentation each side; posterior angles acute: elytra striate, the striae finely punctured; interstitial lines convex: feet entirely rufous. Length more than seven-twentieths of an inch. This species is not the same as the rufipes of Fabricius. [A true Cistela; a variety of this species with fulvous elytra is C. erythroptera Ziegler, Pr. Acad. Nat. Sc. 2, 46.-LEc.] 3. C. BASILLARIS.-Dark chestnut-brown; elytra striate, with a pale rufous spot at the base of each. [Vol. III. OF PHILADELPHIA. 159 Inhabits Pennsylvania. C. bipustulata Knoch in Melsh. Catal. Head punctured: base of the antennae and mouth, dull rufous: thorax hardly punctured, with three indefinite indented lines on the posterior margin; posterior angles rectangular: elytra with punctured strive and interstitial lines: basal [270] spot oval, oblique, extending from the humerus inwards and backwards towards the suture; beneath paler; middle of the pectus blackish. Length one-fifth of an inch. Altogether different from the bipustulata of Illiger. [A species of Mlycetochares.-LEC.] 4. C. FRATERNA.-Dark chestnut brown; elytra punctured, with a pale rufous spot at the base of each. Inhabits Pennsylvania. C. axillaris Knoch in Melsh. Catal. Head punctured; a transverse impressed line between line between the antennae: antennae at base, and mouth dull yellowrufous: thorax punctured, with three indefinite indented lines on the posterior margin; posterior angles nearly rectangular: elytra punctured, destitute of strive, excepting one near the suture; basal spot oval, oblique, extending from the humerus inwards and backwards towards the suture: beneath much paler. Length more than three-twentieths of an inch. Resembles the preceding, but is smaller, and the elytra are not striated. The name axillaris has been employed by Paykull to designate a species altogether different from this. [Belongs to lMycetochares.-LEC.] 5. C. SERICEA.-Pale testaceous, immaculate; elytra obsoletely striated near the suture. Inhabits the United States. Eyes black: mandibles black at tip: antennae slightly darker towards the tip: thorax as well as the head minutely punctured; posterior angles hardly acute: scutel quadrate: elytra minutely punctured; strive obsolete, more obvious near the suture: beneath somewhat paler. Length about one-fifth of an inch. This very common insect is readily distinguished by its pale color. [Belongs to Isomira Muls.-LEC.] [Vol. III. 160 ACADEMY OF NATURAL SCIENCES PYTHO Latr. P. PALLIDA.-Thorax with two impressed lines at base; clypeus emarginate before. Inhabits Arkansa. Body pale reddish-brown, very much depressed, flat above, minutely punctured: clypeus on the anterior edge concave, the angles acute, (more prominent in one sex:) thorax, anterior edge very concave: anterior angles obtusely rounded; posterior edge perfectly rectilinear; posterior angles acute; base with two impressed lines abbreviated before: elytra with punctured strive, lateral edge slightly elevated. Length one-fifth of an inch nearly. This curious species was found on the banks of the river Arkansa by Mr. Thomas Nuttall. It is found in various parts of the United Sates. [Belongs to the genus Adelina Dej., of which, however, I have not yet seen any description.-LEc.] (EDEMERA Latr. 1. (E. RUFICOLLIS.-Black; thorax rufous, with two profoundly indented spots. [272] Inhabits the United States. Necydalis ruficollis Knoch in Melsh. Catal. Body black, with minute hairs: mouth, excepting the palpi, somewhat piceous; beneath yellow: thorax rufous, narrowed behind: two profoundly indented spots placed one each side of the base, a less profoundly indented one at base: elytra purple-black. minutely granulated; three remote elevated lines. Length one-fourth of an inch. Found specimens on the Missouri and near the Rocky Mountains. Mr. Nuttall also obtained them on the Arkansa. [Belongs to Asclera; afterwards described as Ichnomera carinata Newman, Ent. Mag., 5, 378-LEc.] 2. (E. FRAXINI.-Black: thorax rufous, longitudinally oblong, narrowed behind. Inhabits the United States. Necydalisfraxini Melsh. Catal. Body blackish-brown, with minute hairs: mouth piceous an1824.] OF PHILADELPHIA. 161 tennae brown: thorax pale rufous, longitudinally oblong, narrowed towards the base; two very slightly indented dots before the middle, and a hardly perceptible one near the base: elytra confluently and minutely punctured, pubescent: tibia pale. Length three-tenths of an inch. The elytra have some faint appearances of impressed lines. This may probably be the Necydalis thoracica of Fabr.; it is certainly allied to his N. sanguinicollis. [273] [Belongs to Asclera, and is the Fabrician species first mentioned. -LEC.] 3. (E. VESTITA.-Black, hairy; elytra pale brownish; feet testaceous. Inhabits Missouri. Body black, punctured; with dense cinereous hair: head with a dilated, transverse, indented line between the antennae: basal joint of the antennae very obscurely rufous: labrum obscure rufous: maxillary palpi blackish; terminal joint elongated, cylindrical: thorax subcylindric, a little dilated each side before, and gradually contracting to the base, the edge at base a little excurved, an impressed dorsal line at base: scutel minute: elytra pale brownish, not attenuated at tip: densely punctured, and covered with short whitish hair: feet rufo-testaceous: tarsi dusky: thighs simple. Length from three-tenths to two-fifths of an inch. [Unknowxn to me; perhaps an Asclera, but more probably belongs to Stereopalpus.-LEC.] 4. (E. PUNCTICOLLIS.-Black; thorax rufous, with a black spot. Inhabits Missouri. Body black: antennae, two basal joints beneath pale: thorax rufous, narrowed behind, disk somewhat impressed and with a large rounded black spot: elytra minutely granulated, with three remote elevated lines. Length about three-tenths of an inch. Very like (E. ruficollis. [274] [An Asclera.-LEc.] 1824.] 11 162 ACADEMY OF NATURAL SCIENCES DORTHESIA Latr. 1. D. FASCIATA.-Black; elytra yellowish, ovate, black at base; wings with a blackish band. Inhabits Missouri. Body deep black, opaque, punctured: vertex elevated into a carinated tubercle: antennae dilated, brown, paler at base of the processes, concave before; scapus very short, dusky; flabellate processes elongated, robust: front plane: palpi obsoletely annulate with pale: thorax slightly emarginate over the scutel, an impressed, abbreviated, dorsal line: elytra reddish-yellow, subovate; exterior margin from the base to the middle, and basal margin, black; wings white, an irregular fuscous band near the tip: feet black; anterior pair pale rufous, thighs black behind; intermediate pair, tibiae and tarsi pale rufous; posterior tarsi pale rufous. Length three-tenths of an inch nearly. [Dorthesia is a genus of Diptera; the two species here described belong to Myodes.-LEc.] 2. D. FLAVICORNIS.-Black; antennae bright yellow; elytra dark piceous, with a common pale spot. Inhabits Pennsylvania. Mouth with whitish hairs; mandibles pale piceous: thorax minutely granulated, with a polished oblique slightly elevated spot each side of the middle: elytra rounded at tip; a common dull [275] yellowish cinereous spot an tip: wings hyaline: feet dull honey-yellow, posterior pair darker. Length less than one-fifth of an inch. Resembles the preceding, but is smaller, destitute of the band of the wings, and of the impressed thoracic line. RHIPIPHORUS Bose. Latr. R. BICOLOR.-Black; thorax dull rufous; elytra pale testaceous; head truncate above. Inhabits Pennsylvania. R. bicolor Melsh. Catal. Head punctured: vertex much elevated, truncated above, the superior angles rounded: antennae: palpi piceous: thorax dull rufous, punctured; posterior edge black: elytra pale testa[Vol. III, OF PHILADELPHIA. 163 ceous, edged with black, excepting the exterior edge near the base; extreme tip and spot on the anterior part of the humeral tubercle, black: wings fuliginous. Length about a quarter of an inch. This species resembles the male of dimidiatus Fab., and humeratus Fab., but the vertex of those two species, although considerably elevated, is rounded at tip, and the former has a robust spine over the middle lobe of the posterior margin of the thorax. [I have proposed for this species the name R. Sayi, (Journ. Acad. Nat. Sc. 2nd ser. 4, 21), for the following reasons: The name proposed by Say was pre-occupied by Olivier; Dr. Melsheimer on this account substituted the name R. ambiguus, but described under that name a variety of R. pectinatus Fabr., (varicolor Gerstaker). Although Gerstecker has placed R. bicolor 01. as a synonym of R. bimaculatus, this does not obviate the necessity of changing the name imposed by Say under a belief that the name was free. This species is cited by Gerstaecker as a synonym of his R. varicolor, but it differs very much from that species by the anterior face of the vertex being flattened, and the posterior margin so broadly rounded as to appear truncate, as above noted by Say.-LEc.] [276] ANASPIS Geoff. Latr. 1. A. TRILOBA.-Black, covered with dirty yellowish hair; elytra with three black bands, and two spots at base. Inhabits Missouri and Pennsylvania. Body deep black, covered by dense, short, dull yellowish hair: antennae testaceous, black at tip: palpi testaceous: thorax transversely quadrate; angles rounded; posterior margin lobed in the middle, lobe truncate; disk with a trilobate black spot, confluent before: scutel distinct: elytra each with a humeral and scutellar black spot, and three subequal, equidistant black fascia, the last terminal: pectus and postpectus with subargenteous hair: feet black; anteriores, tibia, and tarsi testaceous; posterior pair, tibia and tarsi piceous. Length about three-twentieths of an inch. Considerably resembles Mordella trifasciata of Melsh. Catal. but the species here described has three distinct bands of yel1824.] 164 ACADEMY OF NATURAL SCIENCES lowish hair, the last one of which is not terminal, and the ground color of 3-fasciata is yellow. [Not an Anaspis but a Mordella.-LEC.] 2. A. 4-PUNCTATA.-Black; each elytron with two cinereous points. Inhabits Missouri. Head and thorax densely covered with brownish-cinereous, silky hair: elytra each with two cinereo-argenteous approximate points, rather beyond the [ 277] middle of each elytron, the exterior one somewhat linear, and a smaller obsolete subsutural one near the base. Length three-tenths of an inch. [Belongs to Mordella.-LEc.] MORDELLA Linn. Latr. 1. M. BIDENTATA. —Brown, varied with cinereous, scutel bidentate. Inhabits Missouri. Body light brown, covered with short dense hair: head dusky, with cinereous hair: palpi pale rufous: thorax with cinereous lines somewhat radiating from the middle of the anterior margin: scutel profoundly emarginate at tip, the angles dentiform, acute: elytra brown varied with cinereous; a sutural line, a subterminal arc, one or two abbreviated basal lines, and about three linear spots rather beyond the middle placed 1, 2, of which the inner one is confluent with the sutural line, cinereous, tip angulated or slightly mucronate at the suture. Length seven-twentieths of an inch. The largest species that I have seen native of this country. 2. M. sCAPULARIS.-Black; elytra with a large ferruginous spot on the base of each. Inhabits the United States. olordella bimaculata Melsh. Catal. Head and thorax with obscure yellowish hair: [278] antennae at base, labrum, and palpi rufous: elytra with black hairs, and an oval spot of ferruginous hairs, situated near the base and extending obliquely from the humerus towards the suture: tarsi 1824.] OF PHILADELPHIA. 165 and anterior tibiae, and venter, particularly towards the tip, rufous. Length less than one-fifth of an inch. Fabricius has applied the name bimaculata to a different species; I have therefore changed the name. 3. M. MARGINALIS.-Black; head before and thorax dull rufous. Inhabits Pennsylvania. Hypostoma and inferior part of the front dull yellow-rufous: antenna black: thorax dull yellow-rufous, with a black quadrate oblong spot extending from the middle to the scutel, and another at each lateral angle: elytra immaculate: beneath dull golden sericeous. Length more than three-twentieths of an inch. ANTHICUS Payk. Leach. 1. A. cINcTUS.-Dark rufous; elytra black, rufous at base, a cinereous band before the middle. Inhabits the United States. Body dusky rufous: antennae dusky towards the tip: eyes deep black: thorax subbilobate, contracted rather behind the middle, anterior lobe suborbicular: elytra hirsute, punctured, black, base [279] rufous; a band before the middle and terminal spot cinereous: feet blackish, rufous at base: venter black. Length more than one-eighth of an inch. Var. a. Destitute of the terminal cinereous spot. 2. A. BASILLARIS.-Rufous elytra black, rufous at base. Inhabits the United States. Notoxus melanocephalus? Melsh. Catal. Eyes deep black: thorax broadest before the middle, and narrowed by an almost straight line to the posterior angles: elytra punctured, blackish; base somewhat gibbous and rufous: postpectus and venter piceous. Var. a. Head blackish. Size of the preceding nearly. Resembles the preceding, but the thorax is not so much contracted behind the middle. [Vol. III. 166 ACADEMY OF NATURAL SCIENCES HORIA Fab. Oliv. H. SANGUINIPENNIS.-Body black; elytra sanguineous, immaculate. Inhabits Pennsylvania. Body short, robust, deep black, scabrous, with dense punctures: head lobate at the basal angles, with a slightly elevated, longitudinal, glabrous line on the front; antenna inipunctured; third joint as large or larger than the first; terminal joint [280] acuminated from its middle: mandibles glabrous, and with the palpi impunctured: thorax transverse-quadrate, very obtusely rounded behind: scutel conspicuous, rounded behind, punctures more minute than those of the thorax: elytra very flexible, sanguineous, immaculate: feet punctured; nails denticulated on the middle, tip and base simple. Length more than two-fifths of an inch. This species is an interesting addition to the catalogue of North American insects, as it is the only one of its very limited genus, yet found here: It must be rare, only a single specimen having yet occurred. It is very distinct from the three or four species already known. MELOE Linn. Latr. 1. M. ANGUSTICOLLIS.-Thorax' narrower than the head; elytra and abdomen violaceous. Inhabits Pennsylvania. Body dark violaceous, punctured: head with profound puntures, an impressed, longitudinal, abbreviated, acute, frontal line; and a transverse, elevated, obtuse one connecting the bases of the antennae: thorax slender, narrower than the head, profoundly punctured, widest rather before the middle, and narrowed at tip and base; base emarginate, and slightly margined: elytra rugulose, dark bluish-violaceous: feet slightly hairy, spines [281] of the tibia, and nails ferruginous: abdomen slightly rugulose, dark greenish, or violaceous: tergum each side black, opaque. A rare species, very distinct from the M. americana of Leach, which is not uncommon, and is sometimes gregarious in great numbers; the thorax of angusticollis is strikingly narrower proportionally, as well as the head, than the body; and the colors of [Vol. III. OF PHILADELPHIA. 167 the insect are more violaceous. When taken, it diffused an odor very similar to that of some Blatte. 2. M. CONFERTA.-Black, with dense punctures; antennae regular. Inhabits Missouri and Arkansa. Body black, opaque, punctured; punctures crowded, concave, equally distributed, confluent, furnishing short black hairs:head with separated punctures on the anterior part of the front, distant ones on the clypeus, and remote ones on the labrum: antennae regular: thorax as wide as the head, emarginate at base; sides very slightly arquated, hardly narrower at base; a longitudinal, dorsal, acute, impressed line: elytra scabrous, with minute elevated points, and numerous short black hairs. Length, male half, female four-fifths of an inch. Perfectly distinct from the preceding species, and from the americana, by the very dense and equally distributed punctures of its head and thorax, [282] and by its minutely scabrous elytra. Found in the vicinity of Council Bluff, and near the Rocky Mountains. [Differs from Meloe by the elytra not being imbricated: it forms the genus Henous Hald., but was described by him as H. texanus. -LEC.] [Continuation from Vol. 3, pp. 298-331.] LYTTA Fabr. 1. L. FERRUGINEA.-Black, covered with short ferruginous hair. Inhabits Missouri Territory. Body above invested with crowded ferruginous, short, prostrate hair; beneath darker in consequence of the more sparse hair: eyes brown, oval: antennae hardly larger than the thorax, glabrous, black; basal joint hairy: labrum and palpi glabrous, black: thorax suboval; a longitudinal impressed line, and a basal transverse one. Length about two-fifths of an inch. The antennae are rather short, and exactly filiform. Found on the Missouri by Mr. Nuttall. 2. L. MACULATA.-[Ante, 1, 6.] [299] 1824.] 168 ACADEMY OF NATURAL SCIENCES 3. L. SPHIERICOLLIS,-[Ante, 1, 7.] [300] 4. L. NUTTALLI.-[Ante, 1, 5.] [301] The antennas of this species in the proportional length of the second and third joints, are similar to those of the genus Zonitis, as defined by Latr., Regne Animal, and together with those of the species aenea, polita, spharicollis and reticulata, are considerably different from those of many of the other species of this genus, being somewhat thicker towards the tip, but are much shorter than in Zonitis; these characters, combined with form of the terminal joint, approach them to the genus Mlylabris; but the antennae are not arquated at tip, and are of a more considerable length; the habit also differs, the form of the body being more elongated. These four species then, seem to have the habit of Lytta, combined with a form of antennae approaching somewhat to that of Mylabris. They cannot be referred to Zonitis, as the palpi are not filiform, and the habit differs. First observed by Mr. Thomas Nuttall on the Missouri. I found them on one occasion near the Rocky Mountains in great numbers; small bushes of various kinds were loaded with them. 5, L, AENEA.-Greenish-blue or brassy, hairy: elytra glabrous, brassy or purplish; feet rufous, knees and trochanters black. Lymexylon aeneum Melsheimer's Catalogue. Inhabits Pennsylvania.'[302] Body bluish-green or dark brassy, opaque: head punctured, hairy; eyes oval, not emarginate, fuscous: antennae black, longer than the thorax, joints subturbinate, terminal one largest near the middle, acute at tip: labrum prominent, punctured, divided by a profound sinus into two divaricated lobes: palpi blackish: thorax punctured, narrowed before, not wider near the middle than at base; hairy: scutel hairy: elytra glabrous, somewhat rugose, with two obsolete elevated lines: feet rufous, knees and trochanters black, Length rather more than half an inch, Var, b. Tarsi black, This is not a common insect. It was referred by Mr. F. V. Melsheimer to the genus Lymexylon, but it is not a Pentamerous insect. [Having failed to identify this species, it was described by me [Vol. III. OF PHILADELPHIA. 169 as Cantharis nigricornis, Jour. Acad. Nat. Sc. Phil. ser. 2d, 1, 90. -LEC.] 6. L. POLITA.-lHead and thorax glabrous, brassy, green, polished; elytra pale olivaceous; feet rufous, trochanters and four anterior tibia bluish. Inhabits Georgia. Body above glabrous, punctured; beneath hairy; head brassy, polished, with distant punctures: eyes large, oval, entire, prominent: antennae black, rather long; joints oblong-conic, terminal one largest beyond the middle, abruptly narrowed so as to resemble a twelfth joint; tip acute: labrum blue, bilolate, lobes divaricating: palpi black, not remarkably dilated at tip: thorax glabrous, brassy, polished, punctured each side, distinctly wider before the middle: scutel hairy: elytra pale olivaceous, [303] tinged with brassy, slightly rugose: two slightly elevated, obsolete lines: feet rufous, knees and two anterior pairs of tibia blue: tarsi fuscous. Length three-fifths of an inch. Very much resembles the preceding species, but differs by many characters, particularly in the form of the thorax, in the color, polish, and hair of this part and the head, in the form of the antennae, &c. In the bilobate form of the labrum, these two species differ from the other species of this genus; their palpi are somewhat similar to those of Zonitis and Nemognatha, but the second joint of the antennae is minute, and the body is elongated. 7. L. SEGMENTA[TA].-Black; beneath, segments edged with cinereous. Inhabits Arkansa. Body black, covered by very numerous, short, prostrate black hairs: head with an obsolete, hardly perceptible, rufous, abbreviated, frontal line; anterior edge of the clypeus somewhat pale; beneath, and each side before the eyes, covered with cinereous hair; antennae, second joint two-thirds the length of the third joint: thorax anterior and posterior edges cinereous; an impressed longitudinal line: beneath, incisures, excepting those of the feet, margined with cinereous hair. Length four-fifths of air inch. 1824.] 170 ACADEMY OF NATURAL SCIENCES A fine large species, found in very considerable [304] numbers near Purgatory river of the Arkansa, called by Lieutenant Pike the " First Fork." 8. L. IMMACULATA.-Black, with cinereous hair; second joint of the antennae as long as the third. Inhabits Arkansa. Body black, partially covered with short, prostrate, cinereous hair: antennae, second joint as long as the third: palpi, beneath the hair, reddish-brown: thorax with an impressed, longitudinal line. Length four-fifths of an inch. 9. L. ARTICULARIS.-Black with dense ferruginous hair; second joint of the antennae as long as the third. Inhabits Arkansa. Body black, entirely concealed by dense, short, prostrate, ferruginous hair: antennae subglabrous, half as long as the body; second joint equal to the third: palpi obscure reddish-brown; thorax with a longitudinal impressed line, not narrowed behind: tibia with sparse hairs: tarsi with black hairs. Size of the preceding, to which it is very similar in form, and of which it may very possibly be a variety. Found near the Rocky Mountains. The color of the hair, with which the body is covered, is very similar to that of L. ferruginea, but that insect is very different in the proportional length of the antenne. [305] 10. L. ALBIDA.-[Ante, 1, 6. Having failed to identify this species, I described it as L. luteicornis, Proc. Acad. Nat. Sc. Phil. 7, 84.-LEc.] 11. L. RETICULATA.-Black; elytra reticulate with elevated nervures. Inhabits Arkansa. Body black, obsoletely tinged with green, subglabrous, punctured: head irregularly and confluently punctured: antennae gradually more robust towards the tip: thorax somewhat rounded, much narrowed before, punctures sparse before, confluent each side and behind: elytra reticulate, with elevated nervures. Length about seven-tenths of an inch. [Vol. III. OF PHILADELPHIA. 171 A very remarkable and distinct species; the reticulated elytra give it a very peculiar aspect. The antenna are similar to those of L. Nuttalli, but the body is proportionally shorter. [306] NEMOGNATHA Illig. 1. N. ATRIPENNIS. Testaceous; elytra black. Inhabits Arkansa. Testaceous, punctured: head with concave punctures, remote on the vertex and confluent between the antennae: antenna, mandibles, and palpi, black: labrum piceous: thorax, punctures rather large, remote: elytra black, punctures profoundly impressed, rather distant, more numerous on the margin and tip: postpectus, knees, tibia at tip, and tarsi, black. Length less than two-fifths of an inch. Found near the base of the Rocky Mountains, and between the rivers Arkansa and Platte. The genera Zonitis and Nemognatha are similar to the genus _Eoria in the form of the tarsi, which are bifid and pectinated, in this respect widely differing from Lytta, &c., of which the tarsi are simply bifid. 2. N. MINIMA.-Testaceous; head and thorax elongated; postpectus black. Inhabits Arkansa. Body somewhat elongated, testaceous, punctured, with numerous hairs: head elongated: vertex obtusely and slightly indented: antennae black, dusky, rufous at base: labrum blackish: palpi dusky: maxillae blackish, elongated: thorax conic, much narrower than the elytra: elytra paler than [307] the head and thorax, punctures confluent: postpectus, and venter at base, black: feet varied with dusky: tarsi black. Length from one-fourth to three-tenths of an inch. This is the smallest species I have seen; it is proportionally much narrower than others. I observed numbers of them near the Rocky Mountains. It belongs to genus Gnatho of Kirby. [Unknown to me.-LEc.] BRUCHUS Fab. B. DISCOIDEUS.-Black, with dense cinereous hair beneath; a large rufous spot on each elytron; anus white, with four spots. Inhabits Arkansa. 1824.] 172 ACADEMY OF NATURAL SCIENCES Body black, covered with short, cinereous hair: head with a carinated line between the eyes, and dilated, slightly impressed, confluent punctures: thorax hardly hairy on the middle, with dense, confluent, dilated, slightly impressed punctures, and a longitudinal indented line: elytra with impressed striae and large punctures: a large longitudinally oval rufous spot on each, which attains the lateral edge: anus with four black spots, of which two are triangular and near the middle, and two are semitriangular, marginal, and placed beyond the middle. Length three-twentieths of an inch. Taken near the mountains. It is closely allied [308] to Curculio abbreviatus of Melsh. Catal. (which is a Bruchus,) but is much larger, and further distinguished by the anal spots. CRYPTORHYNCHUS Illig. 1. C. OCULATUS.-Dusky ferruginous, varied with black; eyes very large, approximate, acute before. Inhabits Missouri. Body black, punctured, partially covered by oblong, yellowishferruginous scales: eyes very large, approximate, longitudinally oblong, acute before, and separated by a narrow line: rostrum punctured, black: base striate, with slightly elevated lines, and with a few scales: tip piceous: antennae pale rufous: thorax with dilated confluent punctures beneath the scales: elytra punctured, and with punctured stripe; interstitial lines more elevated behind; tip obsoletely ferruginous: thighs with a black, denuded band above, and a slightly projecting, obtuse angle beneath: tibia pale piceous. Length less than one-tenth of an inch. [Belongs to Copturus.-LEC.] 2. C. OPERCULATTJS.-Black, varied with cinereous scales eyes very large, approximate, acute before, separated by a narrow line; thorax with dilated approximate punctures, each closed by an orbicular scale. Curculio quercus? Melsh. Catal. Inhabits Arkansa. [309] Length, exclusive of the rostrum, more than three-twentieths of an inch. [Vol. III. OF PHILADELPHIA. 173 This species very much resembles the preceding, but is larger, black, and the thoracic scales are orbicular, exactly closing the dilated punctures like opercula. [Belongs to Copturus.-LEc.] FALCIGER Meg. Dej. 1. F. ACEPHALUS.-Blackish, spotted with cinereous; thorax with an impressed line, an obtuse tubercle on each side. Inhabits the United States. Body covered with short robust hairs or scales, brownish-black, spotted and varied with cinereous, imbricate: head, when at rest, completely retracted within the thorax, somewhat retuse between the eyes: thorax, anterior margin abruptly contracted into a collar; posterior edge minutely dentate; an impressed longitudinal line becoming canaliculate towards the scutel; an obsolete, obtuse tubercle each side of the middle: elytra striate; striae with scales concealing the punctures; interstitial lines with elevated and acute points partially concealed by the scales; tip rounded and piceous on the edge; anal segment black: feet rufous: thighs mutic. Var. a. A common double abbreviated white line at the base of the suture. Length more than one-tenth of an inch. [310] The variety occurs in Pennsylvania. A different species, which I have named 4-spinosus, inhabits this State, remarkable for its similarity to the acephalus, but it may be immediately distinguished by the armature of two upright spines on the anterior edge of the thorax. [Belongs to Coeliodes.-LEc.] CURCULIO Fab. Latr. 1. C. ACUTUS.-Cinereous; clypeus profoundly emarginate; a blackish band behind the middle of the elytra. Inhabits Missouri. Body brownish-cinereous, punctured, covered with minute imbricate scales: head profoundly and acutely emarginate at tip, a longitudinal, impressed line: eyes black: antennae, club blackish; elytra with punctured series somewhat in pairs; interstitial lines convex, alternate ones rather more elevated; a black-brown 1824.] 174 ACADEMY OF NATURAL SCIENCES band rather behind the middle, abbreviated each side; tip a little prominent, acute: thighs mutic;a black, longitudinal, impressed line beneath the head. Length three-tenths of an inch. The dusky band of the elytra has a jagged anterior and posterior outline. [This is the type of Brachystylus.-LEC.] 2. C. AURTCEPHAIUS.-Dull green; head and anterior side of the feet golden. Inhabits Mississippi. Body covered with minute scales: head golden-cupreous; [311] an impressed line and obsoletq abbreviated one each side: thorax green, depressed above, and obliquely depressed each side: elytra green, with regular series of punctures; interstitial lines minutely punctured; three alternate ones elevated: beneath green: anterior tibia, and intermediate and posterior pairs of feet on the anterior side golden-cupreous. Length (total) half an inch. A very fine species. Mr. Nuttall brought a specimen from Missouri? and I obtained one on the Mississippi river above Natchez. [This is Platyomus auriceps Sch.-LEc.] R[H]YNCH2ENUS Fab. 1. R. CAUDATUS.-Imbricate, dusky-cinereous, tinged with golden; elytra caudate. Inhabits Missouri. Body dusky-cinereous, covered with minute scales, and obsoletely tinged with golden, a paler lateral vitta: head obscurely golden: eyes deep black: rostrum with a slightly elevated line: beneath deep black: antennae blackish-brown; thorax obscurely golden, with minute, elevated, black dots: scutel golden: elytra with regular series of punctures; golden color more obscure than that of the thorax; tip of each, elongated into an obtuse caudiform projection: beneath obscurely golden, varied with black: feet fuscous, with short hair; [312] thighs dilated before the tip; a cinereous fascia on the two posterior pairs. Length, from the anterior part of the head to the tip of the elytral processes, rather more than two-fifths of an inch. [Vol. III. OF PHILADELPHIA. 175 Found near Engineer Cantonment on the Missouri river. The caudal processes are peculiar to one sex. [Belongs to Listroderes.-LEc.] 2. R. ARMICOLLIS.-Rufous; anterior thoracic angles with small spines. Inhabits Missouri. Body rufous, punctured; head punctured; an obsolete impression between the eyes; a dilated, impressed, abbreviated line over the insertion of the antennae sometimes obsolete or wanting: thorax with much dilated confluent punctures; a polished longitudinal line near the middle; anterior angles with small erect spines, of which the anterior one is largest; posterior angles slightly excurved, anterior and lateral margins dull rufous; elytra light rufous, profoundly striated; strise with approximate punctures: thighs with a robust spine beneath, near the tip. Length from the eyes to tip of the elytra one-fifth of an inch. Var. a. Thorax and beneath, excepting the feet, black. Very closely allied to Curculio barbitus of Melsheimer's Catalogue, a species which is entirely black, whereas the elytra of armicollis are always [313] rufous. I obtained it on the banks of the Missouri, and Mr. T. Nuttall presented me with numerous specimens from the same country. [A species of Magdalinus.-LEC.] 3. R. LINEATICOLLIS.-Thorax with longitudinal, confluent lines; elytra with elevated, acute, alternate, interstitial lines and double series of punctures. Inhabits Arkansa. Body black: head with dense, robust, short, prostrate, yellow hairs above; a carinate line from between the eyes to the middle of the rostrum: eyes approximate: rostrum from the base to the middle marked by about six impressed lines: thorax with numerous, elevated, longitudinal, confluent lines; a transverse, indented, anterior submargin; elytra with double series of large profound punctures, the interstitial lines elevated and very acutely edged: thighs one-toothed; posterior tibia one-toothed near the posterior tip, and ciliated between the tooth and tip. Length (excepting the rostrum) nearly three-tenths of an inch. Found near the Rocky Mountains. [Belongs to Rhyssematus; vide ante 1, 279, 295 —LEc.] 1824.] 176 ACADEMY OF NATURAL SCIENCES 4. R. CONSTRICTUS.-Blackish, with cinereous scales; an impressed, transverse line between the eyes; elytra reddish-brown; thighs mutic: rostrum long. Inhabits Missouri. Body blackish, punctured, covered with oblong scales, not imbricate; vertex, punctures minute: [314] front, a profoundly impressed, transverse line between the eyes: eyes black, distant above, approximate beneath: rostrum cylindric, more than half as long as the body, regularly but slightly arquated from the base, impunctured; base above with depressed granules; tip piceous: antennae placed rather behind the middle, piceous, darker in the middle: thorax densely punctured, punctures large, approximate; anterior margin obsoletely piceous: elytra, strise profoundly indented, straight, punctures obsolete; interstitial lines dilated, depressed: feet obscure rufous; thighs mutic; tarsi blackish. Length, from base of rostrum to tip of elytra, three-twentieths of an inch. The impressed frontal line connects the eyes, and is very profound. [A species of Errhinus.-LEC.] 5. R. INTERSTITIALIS.-Black, punctured; elytra striated, interstitial lines with punctured series. Inhabits Missouri. Curculio striatus Melsh. Catal. Body deep black, immaculate, nearly naked, punctured; punctures orbicular, concave, polished within, distinct: vertex with small, distant punctures: eyes remote above: front obtusely indented between the eyes: rostrum punctured, arquated: thorax, excepting at the anterior margin, as broad as the elytra; a dorsal, obsolete line destitute of punctures: scutel transverse, inequal: elytra deep brownish-black; strise profoundly impressed, transversely [315] punctured; interstitial lines superficially depressed, each with one or two series of orbicular punctures, furnishing short white hairs: tibiae and tarsi piceous; terminal articulation black: anus naked. Length, base of rostrum to tip of elytra, from more than three-twentieths to less than one-fourth of an inch. [Vol. III. OF PHILADELPHIA. 177 This is also an inhabitant of Florida and Pennsylvania. The name striatus is preoccupied in this genus. [Belongs to Baridius.-Lec.] 6. R. UNDULATUS.-Sanguineous, polished; elytra, abdomen, and feet, black. Inhabits Arkansa. Body polished, punctured, sanguineous: rostrum black, arquated, as long as the thorax: thorax dilated; punctures minute and distant, on each side confluent into oblique lines; anterior margin abruptly narrowed into a collar: elytra black, undulated, immaculate; striae very narrow, profound, not distinctly punctured: postpectus, venter, and feet black, the latter scabrous. Var. a. Totally black. Pennsylvania. Length exclusive of the rostrum, one-fifth of an inch. The elytra of this species are remarkably undulated. For specimens from Arkansa I am indebted to Mr. T. Nuttall. [316] [Belongs to Madarus.-LEC.] LIPARUS Oliv. Leach. CUCULIO Linn. 1. L. VITTATUS.-Cinereous; rostrum trisulcated; elytra, with the suture and three lines, blackish. Inhabits Arkansa. Body densely covered with minute, cinereous scales, with a very slight tinge of carneous: head with a dusky, dilated, lateral line: rostrum profoundly and widely sulcated in the middle, and on each side over the interval between the eye and insertion of the antennae: mouth black: antenna, club dusky: thorax somewhat inequal, with distant, profoundly impressed punctures: three dusky, longitudinal lines: elytra with regular series of profound punctures; dilated suture, and three slightly elevated lines on each elytron, blackish: beneath immaculate. Length more than half an inch. Nut uncommon upon the arid and sterile country, included within the distance of four or five hundred miles of the Rocky Mountains. The anterior feet are the most robust, and each alternate interstitial line of the elytra is a little elevated and blackish. [Belongs to Ophryastes.-LEC.] 1824.] 12 178 ACADEMY OF NATURAL SCIENCES 2. L. SULCIROSTRIS.-Cinereous; rostrum trisulcated, transversely indented at base; elytra striate. Inhabits Arkansa. Body densely covered with minute, cinereous scales: head with black punctures; transversely [317] indented or contracted at the origin of the rostrum: rostrum trisulcated, grooves profound, middle one dilated, wider before: mouth and club of the antennee blackish: thorax inequal, with irregular rugee and punctures; a longitudinal, impressed line: elytra acutely striated, and with dilated, slightly indented punctures all covered with cinereous scales: beneath immaculate: anterior feet more robust. Length seven-twentieths of an inch, exclusive of the rostrum. Found in the same districts with the preceding species, which it resembles, but is smaller; the elytra are destitute of blackish lines, and the punctures and striae are altogether different. [Also an Ophryastes.-LEC.] 3. L. IMBRICATUS.-Body covered with minute scales, punctured; a profound, frontal puncture. Inhabits Arkansa. Body covered with dense, minute, somewhat imbricated scales, without intervals; above dusky brassy or blackish, punctured: head with a profound puncture between the eyes: rostrum with a dusky line in the middle: thorax, a dorsal, slightly impressed, punctured line, and several dilated, indented punctures covered with scales; a dilated, cinereous, dorsal line: elytra with very slightly impressed strie containing profoundly impressed punctures; sides and tip white, the latter exhibiting an undulated outline above; three subequidistant, equal, white spots each side of the suture, [318] and another at the middle of the base; an oblique line from behind the humerus terminates at the middle. Length three-tenths of an inch. Near the Rocky Mountains, and on the Missouri. This species varies in depth of coloring, and the cinereous, subsutural spots are sometimes confluent with branches from the margin, so as to form three cinereous bands, but I believe that the spots at base are always insulated. [Belongs to Epiceerus.-LEc.] 4. L. TESSELLATUS.-Imbricate, cinereous, varied with brown[Vol. III. OF PHILADELPHIA. 179 ish; head with a longitudinal, impressed line; elytra with punctured striae. Inhabits Missouri. Body covered with imbricate scales; cinereous, obsoletely varied with brownish or dull brassy, punctured; head brassy, polished; an impressed, longitudinal line: eyes black: antenna piceous: thorax, longitudinal and transverse diameters subequal; a dilated, double, somewhat confluent, dorsal, brownish line, with an undulated, lateral outline occupying nearly all the surface: scutel very minute: elytra varied with cinereous and brownish. with equidistant, indented, punctured strise; interstitial lines equal, with whitish, distant, very short, filiform hairs: abdomen blackish. Length three-twentieths of an inch. Found on the banks of the Mississippi and lower part of the Missouri. [Say, ante 1, 268, states that this belongs to Thylacites, subgenus Strophosomus.-LEc.] [319] CALANDRA Clairv. Fab. C. COMPRESSIROSTRA.-Castaneous; rostrum compressed; a profound, frontal puncture; thorax with two punctured lines converging to the scutel. Inhabits Arkansa. Body dark chestnut-brown passing to blackish: head with small, distant punctures, larger ones on the base of the rostrum which decrease in size to the tip; a profoundly, impressed, large puncture between the eyes: rostrum very much compressed, acutely carinate above: antennae at tip rufous: thorax with larger punctures on the side, on the anterior impressed submargin, and on two indented lines which originate each side of the middle, and converge to the suture: elytra with crenate striae, interstitial lines each with a series of punctures: tibia with a very robust, obtuse spine, and setae below the interior middle: Length less than three-tenths of an inch. Near the Rocky Mountains. [Ante, 1, 20.] 1824.] 180 ACADEMY OF NATURAL SCIENCES APATE Fabr. 1. A. BICORNIS.-Dark brown, varied with cinereous: thorax asperous, bicornute before; posterior angles prominent. Inhabits the United States. Apate bicornis Melsh. Catal. [320] Body blackish-brown varied with cinereous; with robust, scalelike hairs: head equal: eyes prominent, reddish-brown: antennae and palpi ferruginous: labrum fnlvous: thorax declivous before and behind; anterior half and lateral margin armed with numerous short spines; anterior angles projected over the head in the form of parallel horns; posterior angles elongated backward in the form of tubercles; two hardly elevated tubercles on the middle of the base: scutel rounded, cinereous: elytra, each with two elevated lines, of which the inner one is the most prominent and acute, with the blackish-brown and cinereous colors somewhat alternate; tip near the sutural termination mucronatc or only angulated: beneath dark reddish-brown. Length two-fifths of an inch. Found above the mouth of the Ohio. I have a specimen in my cabinet which is rather smaller; the elevated lines of the elytra hardly prominent. Seems to have some affinity with Apate cornutus of Fabr. [Belongs to Bostrichus, as restricted by Lacordaire, Gen. Col. 4, 539.-LEc.] 2. A. BICAUDATUS.-Dark reddish-brown; thorax asperous aud bicornate before; a prominent, obtuse spine near the tip of the elytra. Inhabits the United States. Apate cornutus Melsh. Catal. Body dark reddish-brown: head with long pubescence: eyes prominent: antennae and palpi ferruginous: labrum fulvous: thorax declivous before [321] and behind, anterior moiety armed with numerous short spines; anterior angles projecting over the base of the head, armed with spines above; posterior angles rounded, not prominent; elytra near the tip, with a very prominent, obtuse, slightly inflected spine on each; edges at tip a little reflected: wings whitish: feet reddish-piceous. [Vol. III. OF PHILADELPHIA. 181 Female.-Anterior angles of the thorax slightly projecting an oblique, hardly elevated line, instead of the elytral spine. Length less than seven-twentieths of an inch. Found above the mouth of the Ohio. Resembles the preceding species, but is destitute of the prominent, posterior, thoracic angles so conspicuous in that insect, and the male is armed with a prominent, cylindrical, obtuse spine above the tip of the elytra. The specific name cornutus has been given to an inhabitant of Madagascar. [Also a Bostrichus.-LEc.] 3. A. BASILARIS.-Black; elytra rufous at base, retuse and tridentate at tip: thorax asperous before. Inhabits the United States. Apate humeralis Knoch in Melsh. Catal. Body black: head equal: eyes prominent, somewhat reflected: antennae and palpi rufous: labrum fulvous: thorax declivous, and armed with numerous short spines before; angles rounded: scutel minute, orbicular; elytra with large dense punctures which are more dilated towards the tip; a large rufous spot on the middle of the base: tip [322 ] retuse, with a few large punctures; lateral edge tridentate: teeth triangular, acute; sutural and terminal edges elevated: wings black: beneath impunctured: tibia and tarsi blackish-rufous. Length one-fifth of an inch. On the Ohio, Mississippi, Arkansa. The name hnmeralis is preoccupied. [Belongs to Sinoxylon. —LE.] HYLESINUS Latr. H. ACULEATUS.-Varied with cinereous and fuscous; thorax with three black lines; elytra aculeate. Inhabits Missouri. Anobiurnmaculatun? Melsh. Catal. Body varied with blackish-brown and yellowish-cinereous short hair: head confluently punctured; a slightly elevated, longitudinal, frontal line: antennae pale rufous: thorax, punctures much dilated, slightly impressed; a dilated, longitudinal, fuscous line each side, and a much dilated one in the middle: elytra somewhat trifasciate with yellowish-cinereous; an obsolete band at base; the second beyond the middle oblique and abbreviated, 1824.] 182 ACADEMY OF NATURAL SCIENCES and the third near the tip oblique and interrupted; striae profound, acute: interstitial lines armed with minute, elevated points; basal edge somewhat elevated, acute. Length three-twentieths of an inch. [323] SCOLYTUS Latr. 1. S. 4-spINOSUS.-Black; elytra brown; venter four-spined. Inhabits Missouri. Head depressed above, lineated with minute, abbreviated, longitudinal lines; coronated with long, incurved, dull-yellowish hairs on the margin; antennae pale rufous: thorax punctured, black-brown: elytra reddish-brown, truncated, with impressed, punctured striae, and an obsolete series of punctures on the interstitial lines; tip denticulated: venter obliquely truncated, deep black, opaque, four-spined; spines conic-acute, placed 3, 1, the latter smaller. Length more than one-fifth of an inch. 2. S. MUTICUS.-Black, hairy; venter unarmed. Inhabits Missouri. Body deep brownish-black, punctured, hairy; head, above depressed, plane, lineated with minute longitudinal lines, and coronated with incurved, yellowish hairs on the margin: antennae pale rufous: elytra with numerous long hairs, truncate, and slightly denticulated at tip: numerous punctured, hardly impressed striae: venter obliquely truncated, mutic, furnished with long hairs: posterior tibia with long hairs behind. Length from three-twentieths to one-fifth of an inch. [324] Resembles the preceding, but is distinguished at once by the mutic venter and the more numerous striations of the elytra. PLATYPUS Herbst, Latr. P. COMPOSITUs.-Reddish-brown; each elytron with a terminal, tridentate elongation. Inhabits Missouri. Body reddish-brown: eyes dusky: antennae, terminal joint dilated, compressed, oval, nearly as large as the eye; elytra profoundly striated; striae punctured; punctures subquadrate, approximate, slightly indented; tip of each elytron with two small longitudinal teeth and an elongated process, which is tridentate; [Vol. III. OF PHILADELPHIA. 183 intermediate tooth emarginate: feet dilated, compressed; anterior thighs angulated in the middle beneath, and with a projecting lobe near the inferior tip; anterior tibia with five elevated, dusky, transverse, obliquely arquated lines on the exterior side, of which the fifth is nearly terminal and distant from the others: tarsi elongated; basal joint very long, penultimate one very short. Length one-fifth of an inch. Resembles Scolytus flavicornis of Olivier, but is readily distinguishable by the form of the terminal spine of the elytra. [325] COLYDIUM Fabr. Latr. C. BIPUNCTATUM.-Blackish-brown; anterior tibia angulated before; intermediate ones five or six spined. Inhabits Upper Missouri. Body elongated, linear, punctured; punctures minute, regular, distant: antennae piceous: thorax longitudinally oblong, subquadrate angles rounded: lateral edges slightly arquated: scutel obtusely triangular: elytra with punctured striae; an obsolete, subsutural, piceous spot on each before the tip: anal segment naked: feet piceous; anterior tibia with a slightly projecting angle on the anterior middle; intermediate tibia five or six spined on the anterior edge; posterior ones mutic. Length one-ninth of an inch. The spots on the elytra are hardly perceptible, excepting in a particular light, and are even then obsolete. [Belongs to Ips.-LEc.] LATRIDIUS Herbst. L. 8-DENTATUS. —ark reddish-brown; thorax dentate each side, and with an indented spot behind the middle. Body dark reddish-brown: eyes black: thorax suborbicular, seven or eight-toothed each side; a profoundly indented, large spot on the basal submargin: [326] elytra with approximate series of punctures: feet yellowish-piceous at base. Length nearly three-fortieths of an inch. Caught above the confluence of the Platte with the Missouri river. [A species of Corticaria.-LEC.] 1824.] 184 ACADEMY OF NATURAL SCIENCES PRIONUS Geoff. Fabr. Oliv. Latr. 1. P. DASYSTOMUS.-Reddish-brown; head black; thorax denticulate each side; teeth small; labrum and mandibles within with ferruginous hair. Inhabits the lower part of the Missouri river. Body reddish-brown, punctured: head black; punctures profound; a longitudinal, impressed line: eyes black-brown; a small tubercle over the insertion of the antennae, and a larger, compressed, emarginate one at the outer base of the mandibles: antennae compressed, punctured, mutic, short; labrum and mandibles within with dense, rufous hair: palpi piceous: thorax with crowded, irregular, minute, profound punctures; an impunctured large spot each side of the middle; a transverse one on the middle of the base, and one or two oblique, abbreviated lines each side; lateral edge dentated with from 5 to 14 small teeth; elytra mucronate; punctures obsolete: beneath paler; region of the mouth rugose with confluent punctures: postpectus with yellowish hair: tarsi yellowish. Length one inch and three-tenths. [327] This species, in habit, approaches P. cylindricus and cilipes, but is at once distinguished from both, besides other characters, by the very hairy appearance of the labrum, and of the inner side of the labrum [mandibles]. [Belongs to Mallodon.-LEc.] 2. P. EMARGINATUS.-Castaneous, hairy; thorax one-toothed; antennae fourteen-jointed. Inhabits Arkansa. Body castaneous: head, thorax and breast covered with long yellowish-ferruginous hair: antennae fourtden-jointed, glabrous, perfoliate, imbricate; the imbrications emarginate beneath; mandibles black at tip: thorax but slightly margined, one-toothed on the middle of the lateral edge: angles obtusely rounded: elytra somewhat inequal, punctured: feet and venter subglabrous. Length nearly seven-tenths of an inch. Female glabrous; antennae simple. Length four-fifths of an inch. [Vol. III. OF PHILELPLPHIA. 185 This species exhibits the general form of brevicornis, but the the thorax is proportionally much narrowed, and the characters above detailed prove it to be very distinct from that species. The lepaceous processes of the antennae are so profoundly emarginate beneath as to appear each bilobate. I obtained it on the Arkansa river near the Mountains. 3. P. PALPARIS.-Black; thorax tridentate; terminal joint of the maxillary palpi longer than the preceding one. [328] Inhabits the upper part of the Arkansa river. Body black, immaculate, punctured; head confluently punctured; an impressed, longitudinal line: maxillary palpi with the last joint longer than the penultimate one: thorax, punctures rather more sparse on the disk; lateral margin not dilated; edge tridentate; anterior tooth a slight prominence of the anterior angle; intermediate one acute, subconic, spiniform, not reflected; posterior tooth not prominent, and consisting only of the posterior angle: elytra slightly punctured, nearly smooth; tip slightly mucronate: pectus and postpectus of the male hairy; hair yellowish. Length, male one and one-fifth, female one and a half inches nearly. I observed several specimens of this species on the Arkansa near the Mountains. It resembles at first sight P. brevicornis Fab., but it differs from that insect in some important characters, the elytra are much smoother, the thorax is not so broadly margined on each side, the intermediate thoracic tooth is more spiniform; but the most characteristic difference appears to reside in the maxillary palpi the terminal joint of which is very conspicuously longer than the preceding joint, whilst the corresponding parts of imbricornis are nearly equal. 4. P. CILIPES.-Castaneous; thorax minutely dentate; tibia ciliate on the inferior edge. Inhabits Platte and Arkansa rivers. Body castaneous, punctured; head thorax and [329] extremities blackish: head with a longitudinal, impressed line; punctures sparse between the eyes, more dense before, upon the mandibles, basal joint of the antennae, and becoming scabrous on the 1823.] 186 ACADEMY OF NATURAL SCIENCES vertex and behind the eyes: antennae, third joint rather shorter than the first: mandibles strongly dentate within: thorax broad, anterior lateral margin scabrous, with very crowded, minute punctures; punctures of the disk sparse; lateral edge irregularly dentated with very small, obtuse teeth; an obtuse angle behind the middle: elytra punctured, destitute of elevated lines: postpectus with short yellowish hair: tibia densely ciliated with yellowish hair on the inferior edge. Length one inch and three-fifths. The specimen, from which this description is taken, is a female; in general form it approaches P. cylindricus, but the thorax is broader and destitute of spiniform teeth; the third joint of the antennae is obviously shorter than the first, and the tibiae are densely ciliated on the inferior edge. It is probably somewhat allied to the P. dentatus of Fabricius, judging from the description of that author. [A species of Mallodon, afterwards described as a. simplicicolle Hald.-LEC.] LAMIA. 1. L. ACULIFERA.-Thorax unequal; elytra aculeate, with a white band behind. Inhabits Missouri. [330] Body blackish-brown, covered with short, prostrate, cinereous hair: head with a double slightly elevated line on the vertex: antennae as long as the body, cinereous, spotted towards the base, and annulated towards the tip with brown: thorax unequal; a dorsal, rectilinear, elevated line, and two undulated or interrupted ones; lateral tubercle obtuse, little elevated: elytra unequal, with numerous, elevated, acute points; behind the middle a white fascia broadest at the suture, and edged behind by a black line: tip entire: thighs clavate, spotted, and tibia biannulate with blackbrown. Length seven-twentieths of an inch. This is a common species. I observed it on the banks of the Mississippi, Missouri, Platte (Nebraska) and Arkansa. [I have placed this and several other species in a genus Leptostylus, Jour. Acad. Nat. Sc. 2d ser., 2, 168.-LEc.] [Vol. III. OF PHILADELPHIA. 187 2. L. ASPERSA.-Covered with cinereous hair; elytra with numerous black dots. Inhabits Mississippi and Missouri. Body reddish-brown or blackish, covered with cinereous hair: head black: antennae longer than the body: thorax with a small, acute, reflected spine behind the middle each side, and with two or four black dots above placed in a transverse series, the two intermediate ones larger: elytra reddish-brown, with numerous black dots; tip emarginate, bidentate: beneath black, covered with cinereous hair: thighs clavate, pale reddish-brown at base. Length less than one-fourth of an inch. [ 331 ] This insect is not uncommon in the western regions. It varies a little in having the black elytral spots smaller, or in having some of them which are situated behind the midde, confluent into a band. I have taken a specimen of this insect near Philadelphia, at Harrowgate, the seat of my friend Mr. J. Gilliams, in a rye field. [Belongs to Liopus. —LEc.] [403] MONEILEMA* Say. Essential character.-Elytra undivided; wings none. Natural character.-Body convex: head vertical: antennae eleven-jointed, [404] setaceous, inserted into a profound emargination of the eye; first joint elongated, robust; second joint very short, third nearly as long as the first; remaining joints gradually diminishing in length to the tip: eyes rather small, profoundly emarginate: labrum prominent, rounded: mandibles robust, emarginate at tip: palpi, terminal articulation as robust as the preceding one, rounded at tip: labiales inserted near the base of the labium: labium prominent, bifid; lobes rounded: elytra consisting of one piece, convex, subovate, narrowed behind, subtruncate at tip, and rather shorter than the abdomen: epipleura dilated, encasing the abdomen each side: feet robust: thighs clavate. M. ANNULATA [ANNULATUM.]-Thorax with a very short tubercle; antennae annulate. Inhabits Missouri Territory. * Signifying one covering. 1824.] 188 ACADEMY OF NATURAL SCIENCES Body glabrous, black: antennae shorter than the body, obsoletely annulated with cinereous: front impunctured: thorax slightly punctured at base and each side; a lateral, small, subacute tubercle: scutel rounded at tip; elytra with numerous, indented, irregular, longitudinal, abbreviated, confluent lines; a few distant punctures towards the base. Length four-fifths of an inch. This singular insect I found near the Rocky [405] Mountains, and in the vicinity of the rivers Platte (Nebraska) and Arkansa. Mr. Nuttall also obtained specimens on the Upper Missouri. It is essentially distinct from the genus Lamia, (to which it is most closely related,) by the total absence of wings, and by having the elytra inseparably united into one piece. The epipleura embrace the sides of the abdomen, as in the genus Pimelia, &c. and its gibbous or convex form and somewhat pointed abdomen give to it almost the habit of some species of that genus. SAPERDA. 1. S. ALTERNATA.-Blackish, with cinereous hair and ferruginous spots; thorax long. Inhabits the United States. Body blackish-brown, with sparse, cinereous, prostrate hair, varied with spots and lines of dense ferruginous hair: head, with the edge around the antennae, much elevated, somewhat spinose on the inner side; between the antennae profoundly indented: antennae longer than the body, attenuated: thorax cylindric, rather long, narrower than the elytra; with four ferruginous lines; elytra with three or four series of irregular, ferruginous spots: tip rounded. Length, male seven-twentieths, female nine-twentieths of an inch. The marginal and sutural series of elytral spots [406] more regularly alternate with the intervening colors than the intermediate series do. It somewhat resembles Olivier's figure of S. maculata, but the thorax is much shorter, and the spot are differently disposed. [Belongs to Dorcaschema Lec.-LEc.] [Vol. III. OF PHILADELPHIA. 189 2. S. PUNCTICOLLIS.-Yellow; beneath plumbeous; elytra black, with a yellow margin and suture. Inhabits Arkansa. Body covered with bright yellow, crowded, short, prostrate hair: head with a black, frontal dot, and another upon the vertex: antenne as long as the body, black: thorax with four black, equal spots above, and one each side: elytra black and punctured upon the disk; exterior margin, tip, and suture with an equal line of dense yellow hair; tip entire: beneath plumbeous. Length seven-twentieths of an inch. A very pretty insect, of which but a single specimen was found by Mr. T. Nuttall on the Arkansa. [Afterwards described as S. trigeminata Randall.-LEc.] 3. S. OCULATICOLLIS.-Black, covered with cinereous hair: elytra truncate at tip. Inhabits Missouri. Body black, immaculate, cylindrical, covered with short prostrate hair, which partially conceals the punctures: palpi piceous; antennae rather shorter than the body: thorax cylindric, diameters nearly equal; two small glabrous spots on the disk, and an obsolete, glabrous, longitudinal line; elytra truncate at tip. Length nine-twentieths of an inch. [Belongs to Oberea.-LEC.] 4. S. INORNATA.-Black, covered with cinereous hair; antennae annulate; elytra entire. Inhabits Missouri. Body black, immaculate, cylindrical, covered with short, prostrate hair, which conceals the punctures: palpi black: antennae rather shorter than the body, and, excepting the basal joints, annulate, with cinereous and black: thorax cylindric, diameters subequal: elytra entire and subacute at tip, which is equally attenuated from the suture and exterior margins. Length less than nine-twentieths of an inch. The entire termination of the elytra sufficiently distinguishes this species from the oculaticollis, and it is also a more robust species; it is, however, still more closely allied to the S. pergrata, but in addition to the difference in the color of the femur, and that of the margins of the elytra, the elytra are much less obtuse 1823.] 190 ACADEMY OF NATURAL SCIENCES at tip, and the thorax is entirely destitute of glabrous spots. It cannot be the cinerea Oliv., as the antennae of that insect are described to be as long again as the body. [I have not identified this insect.-LEc.] 5. S. PERGRATA.-Black, covered with cinereous hair; antennae annulate; elytra entire; thorax with small glabrous spots. Inhabits Missouri. Body black, covered with short, prostrate hair, which partially conceals the punctures: antenna nearly as long as the body, annulate, with cinereous and black: thorax slightly dilated in the [408] middle; a transverse, arquated series of four glabrous spots, and a longitudinal, abbreviated, glabrous line behind the middle: scutel whitish: elytra with a narrow white margin and suture; tip entire: thighs dull rufous. Length about nine-twentieths of an inch. Upon the middle of each elytron is a very indistinct, rufous line, which is only visible upon close inspection, and is very probably often wanting; a similar spot is upon the anterior portion of the thorax; the white appearance of the margin of the elytra is occasioned by the more dense disposition of the hairs on that part. We captured but a single specimen on the Platte river (Nebraska) near the mountains. [Belongs to Stenostola.-LEC.] 6. S. CALCARATA.- Reddish-brown, covered with cinereous and yellow hair; elytra mucronate at tip. Inhabits Missouri Territory. Body clothed with dense, prostrate, cinereous hair, varied with yellow or somewhat ferruginous hair: front, a geminate line on the vertex and lateral line, yellow: antennae cinereous, longer than the body: thorax trilineate with yellow: scutel yellow, sub-emarginate behind: elytra cinereous, varied with yellow-ferruginous lines and spots; numerous small glabrous punctures; tip mucronate in the middle; humerus rather prominent. Length nearly nine-tenths of an inch. Closely related to S. mutica. [409] 7. S. BIVITTATA.-H-oary; above light brown, with two broad white fillets. Inhabits the United States. [Vol. III. OF PHILADELPHIA. 191 Body white: eyes fuscous; a small spot on the vertex, and another behind each eye, light brown: antenna moderate, slightly tinged with bluish: thorax light brown, with two broad, white lines approaching before: elytra light brown, irregularly punctured; a broad, white, longitudinal line on each, nearer to the suture than to the outer edge. Length from one-half to seven-tenths of an inch. A very pretty insect. In the larvae state it is very injurious to the apple tree; boring into the wood. [Previously described by Fabricius as S. candida,.-LEc.] 8. S. MUTICA. —Reddish-brown, covered with cinereous and ferruginous hair; elytra mutic; antennae annulated. Inhabits Missouri Territory. Body dark reddish-brown, partially covered with cinereousyellow, prostrate hair, varied with ferruginous hair: front, and a geminate line on the vertex, ferruginous: antennae annulate, with cinereous and blackish; shorter than the body: thorax trilineate, with ferruginous: scutel yellow, subemarginate behind: elytra with yellowish-cinereous hair, varied with ferruginous spots; numerous glabrous punctures; tip mutic, obtusely sublanceolate. Length half an inch. [410] Very much resembles S. calcarata, and may possibly prove to be a sexual variety, nevertheless the differences are remarkable; in the present insect the antennae are shorter than the body, and annulated, and the elytra are destitute of a spinose point at tip. [A very distinct species.-LEc.] CERAMBYX Fabr. C. SOLITARIUS.-Black; thorax bituberculate each side; elytra destitute of elevated lines. Inhabits Upper Arkansa. Body deep black, immaculate, punctured: head with a longitudinal, impressed line between the eyes; front transversely indented, and with one or two small, abbreviated, elevated, transverse lines; a slight tubercle at the inner base of the antenna: antennae long; basal joints a little hispid beneath: labrum piceous: thorax, with three very obtuse, hardly elevated tubercles behind, placed transversely; lateral edge with two tubercles, of which the anterior one is more obtuse, and the posterior one is 1824.] 192 ACADEMY OF NATURAL SCIENCES slightly reflected: scutel acute: elytra destitute of any prominent line; punctured; punctures enclosed by minute, irregular, indented lines: pectus, punctures very minute: venter, posterior margins of the segments highly polished. Length one inch and three-tenths. Appears to be a rare insect. I found but one specimen on the Arkansa river near the mountains. [411] The elytra to the eye have a smooth appearance, and, with the body, are totally black. [I described this species as a new genus Smileceras, but afterwards recognized the identity of the genus with Stenaspis.-LEC.] CALLIDIUM Fabr. 1. C. DISCOIDEUM.- Rufous; head, postpectus, feet, and dilated sutural mark, black. Inhabits Mississipi. Body bright rufous, punctured: head black, confluently punctured; an elevated line between the antennae: antenna tinged with brownish, rather shorter than the body: thorax convex, rounded; punctures profound, equally disseminated; hairs erect: scutel small, black: elytra with approximate, regular punctures, and very short, obsolete hair; a large, sutural, black, common mark, occupying more than half the superficies; it is contracted near the base, and still more dilated at tip; tip rounded, entire: postpectus and feet black. Length less than half an inch. [Allied to Eriphus.-LEC.] 2. C. SUTURALE.-Rufo-sanguineous, hairy; antennae, suture, postpectus and feet, black. Inhabits Mississippi. Body bright rufo-sanguineous, hairy, punctured: antennae rather shorter than the body, and with the orbits black: thorax convex, with long black hairs; punctures sparse, obsolete on the disk: scutel small, black: elytra with long black hairs, which are erect at basej and prostrate at tip of the elytra; punctures rather distant, furnishing [412] hairs; suture with a black common line; tip rounded, entire: postpectus black: anterior and intermediate thighs black in the middle. Length 8even-twentieths of an inch. [Vol. III. OF PHILADELPHIA. 193 This species very much resembles C. discoideum, but is much smaller; and besides other differences, the punctuations of the head and thorax are very distinct both in point of form and position, being crowded and rounded in discoideum, and comparatively distant in the present species. [Of the same genus as the preceding.-LEc.] 3. C. IGNICOLLE.-Black; thorax bright rufous. Inhabits Missouri. Body black, hairy, punctured: antennse shorter than the body; the joints extending into a small angle on their anterior tips: thorax rounded, convex, bright rufous, with upright, prominent hair: scutel black: elytra punctured, hairy; the hairs upright at base, and prostrate near the tip of the elytra; tip entire. Length rather more than nine-twentieths of an inch. [Also of the same genus.-LEC.] 4. C. PALLIDUM.-Whitish; thoracic lineations and elytral fascia brown. Inhabits Arkansa. Body whitish, slightly tinged with yellow: eyes black: vertex brown: antennae, joints tipped with brown: thorax contracted behind; anterior margin brown; an obsolete, abbreviated line in the middle, and a lateral one which is dilated before, or somewhat cruciate, brown; a very obtuse, hardly [413] elevated, lateral tubercle: elytra four-banded, with brown; anterior band transverse, abbreviated; second very oblique and linear, third dilated and undulated, fourth linear and placed near the tip; thighs clavate. Length more than one-fifth of an inch. [Allied to Obrium: subsequently described as Phyton limum Newman, and Diozodes pallida Hald.-LEC.] 5. C. AMOENUM.-Rufous; elytra violaceous, punctured. Inhabits the United States. C. bicolor Melsh. Catal. Body rufous, with short hair, punctured: antennae black: thorax subinequal, polished; punctures very numerous on each side; less numerous on the disk; scutel rufous: elytra violaceous, with confluent, excavated punctures, furnishing short, black hairs; tip rounded: tibia and tarsi black. 1824.] 13 194 ACADEMY OF NATURAL SCIENCES Length one-fourth of an inch. Very much resembles C. foenicum, but is much smaller, and the elytra are very obviously punctured. We obtained specimens on the Arkansa river; it is also an inhabitant of Pennsylvania. The name bicolor is preoccupied by an insect of South America. 6. C. BREVILINEUM. —Black; thorax bituberculate; elytra violaceous, with three abbreviated, white lines. Inhabits the United Sates. Body black, scabrous, with small, elevated points: head with an impressed, longitudinal line: antennae nearly as long as the body: palpi piceous: [414] thorax with dense, minute hairs; two elevated, obtuse tubercles behind the middle and an intermediate, elevated line, obsolete before: scutel hairy, rounded: elytra violaceous, scabrous, with minute, subequal, numerous tubercles; base dusky, with minute hairs; two or three longitudinal, elevated, white lines on the middle, nearly parallel, and placed in an obliquely transverse series; tip obtusely rounded: thighs clavate. Length, male nine-twentieths; female seven-tenths of an inch nearly. I found a specimen in Pennsylvania some time since, and recently an individual occurred on the Arkansa river. The white lines of the elytra are very short, and nearly parallel to each other; nearer to the base is sometimes another abbreviated white line. 7. C. FULVIPENNE. —Deep black, hairy; elytra fulvous. Inhabits Arkansa. Body deep black, covered with dense black hair: antennae rather longer than the body, somewhat hairy: palpi glabrous, deep reddish-brown: thorax, above with four obsolete tubercles, and an intermediate, abbreviated, glabrous, longitudinal line; a slightly prominent, lateral spine: scutel hairy, black: elytra yellowish-fulvous, covered with dense, very short, prostrate hair; four longitudinal, slightly elevated lines. Length three-fifths of an inch. [415] I obtained but a single specimen of this beautiful species. It occurred at the Cherokee settlement on the Arkansa river. It [Vol. III. OF PHILADELPHIA. 195 approaches the description of Cerambyx ebulinus of Fab., but, according to Olivier, that insect, which he names Stenocorus testaceus, has the antennae only a little more than half the length of the body. [Belongs to Tragidion, and seems to be a variety of T. coquus. -LEC.] 8. C. 6-FASCIATUM.-Black, varied with short, dense, prostrate, yellow hair; margin of the thorax, scutel, and four elytral fasciae yellow. Inhabits Missouri. Body black, punctured, with a few long hairs: head, beneath rufous, above with yellow hair: antennae ferruginous, nearly as long again as the body, and hairy beneath and towards the base; basal joint dilated, punctured; mandibles black at tip: thorax deeply margined, with dense yellow hair; transverse disk black, with two hardly elevated, obtuse tubercles, and an intermediate, longitudinal line, and a lateral, very obtuse, hardly elevated tubercle each side behind the middle; a transverse, anterior and posterior groove: scutel yellow: elytra, each 4-fasciate; fasciae yellow, equidistant, subequal; two anterior ones bent obliquely forward from the suture; the two posterior ones retrofracted, the last one terminal; apex of each elytron emarginate: pectus and postpectus with yellow hair and black incisures: feet rufous: thighs dilated, compressed: abdomen fasciate with yellow. [416] Length, male three-fourths; female seven-eighths of an inch Found under the bark of a decaying elm, on Loutre island, Missouri river. [This is the type of Dryobius Lee. Journ. Acad. Nat. Sci., Phila., 2d ser. 2, 23.-LEc.] LEPTURA Latr. 1. L. BIVITTATA.-Elytra pale yellowish-white, with two black vitta on each. Inhabits Missouri. Head black, with much crowded punctures; an impressed line between the antennae: antenna as long as the body: thorax slightly punctured; two longitudinal black spots, and an anterior posterior submarginal, impressed line, and an obsolete, dorsal, longitudinal one; an obtuse, slightly elevated, lateral tubercle: 1824.] 196 ACADEMY OF NATURAL SCIENCES scutel black: elytra densely punctured, rounded at tip, with two longitudinal, blued-black lines on the disk of each: beneath black; sides of the pectus, margins of the ventral incisures, and middle of the thighs, rufous. Length two-fifths of an inch. This insect, which is not very uncommon in the vicinity of Council Bluff and the Pawnee villages, bears some resemblance to the vittata of Swederus in Stockh. Trans. 1787, p. 198, and of Hellwig in Melsh. Catal., but in that insect there is but a single elytral vitta. In many other characters it is widely distinct, and approaches somewhat in [417] character to the genus Rhagium. It varies in having an immaculate thorax and rufous clypeus. [Unknown to me.-LEC.] 2. L. CYLINDRICOLLIS.-Sericeous, rufous; elytra, tibia, and tarsi blackish. Inhabits the United States. Rhagium sericeum Knoch in Melsh. Catal. Body sericeous, yellowish-rufous: head with a longitudinal, indented line, and a transverse, elevated one between the antennae: antennae rather longer than the body: palpi blackish: thorax long, subcylindric, with a longitudinal, dorsal, and anterior and posterior, impressed, submarginal lines: elytra blackish, attenuated rectilinearly or somewhat concavely from the prominent humerus to the obliquely emarginate or bidentate tip: feet rufous: knees, tibia and tarsi, black. Length, male more than half an inch; female more than three-fifths. In the male the head is often dusky, and the thorax, with the exception of the more elevated part, and the coxae, are blackish. In the general appearance of the head and thorax of this insect, it is closely allied to the genus Rhagyim, and has been referred to that genus by Mr. Melsheimer in his Catalogue; but as the thorax is destitute of armature, and the antennae are longer than the body, I prefer giving it a place in the present genus, agreeably to the generic characters of Latreille and Leach. I think it ought [418] to form a distinct genus, together with Rhagium trivittatum. [Vol. III. OF PHILADELPHIA. 197 It is rather rare. The trivial name, applied by Mr. Knoch, is pre-occupied in this genus. [A species of Toxotus, afterwards described as T. dives Newman; a variety of it is T. atratus Hald.-LEC.] 3. L. BIGOLOR.-Rufous, sericeous; elytra black. Inhabits the United States. Leptura bicolor Melsh. Catal. Body elongated, pale rufous, sericeous: head with an obsolete, impressed line: antennae as long as the body: thorax conical; posterior angles acute: elytra black, attenuated; with numerous short, prostrate, black hairs; tip very obliquely emarginate, appearing mucronate: wings black. Length from half an inch to three-fifths. This species is found in Pennsylvania, and on the Ohio and Mississippi rivers. It may be allied to the L. bicolor of Swederus in Stockholm Trans. 1817, p. 197, but his insect is said to be black on the upper part of the tail, a character which our insect does not possess. In Turton's translation of the Syst. Nat., the name bicolor of Swederus is changed to bicolorata, so that Mr. Melsheimer's designation may be retained for the species here described. 4. L. RUBRICA.-Black; elytra and abdomen rufous. Inhabits the United States. Leptura rubrica Knoch in Melsh. Catal. Body black, punctured, with numerous short hairs above, and sericeous beneath: head obsoletely punctured: antennae as long as the body; [419] six terminal joints fulvous at base: thorax confluently punctured; punctures dilated; a transverse groove on the hind margin: scutel small, black: elytra rufous or dull brick red; punctures numerous, becoming smaller to the tip, which is emarginate, mutib: beneath black: abdomen rufous; of the female, black. Length about half an inch. This insect occurs on the Missouri. It is found in Pennsylvania, but I have not frequently observed it. 5. L. 8-NOTATA.-Black, hairy; elytra each four-spotted. Inhabits Mississippi. Body deep black, with upright hairs: head rather large, with 1824.] 198 ACADEMY OF NATURAL SCIENCES an impressed, longitudinal line: antennae not longer than the body: thorax subcylindric: elytra polished; each elytron with four subtriangular, equidistant, yellow spots; the basal one at the base, and the terminal one near the tip; hair near the tip shorter, and nearly prostrate; tip truncate, mutic: posterior feet, with the base and tarsi, yellowish. Length less than half an inch. But a single specimen of this species was taken by MIr. Nuttall on the Mississippi. [Afterwards described as L. stictica Newman, and L. 4-punctata Hald.-LEc.] 6. L. LUGUBRIS.-Black; sericeous beneath; antennae shorter than the body. Inhabits Lower Missouri. L. scutellum-album? Knoch in Melsh. Catal. [420] Body deep black, immaculate, with short, prostrate hairs above, and yellowish-sericeous ones beneath: head with an elevated line between the antennae: antennae rather shorter than the body: thorax conical; posterior margin grooved; posterior angles acute: scutel with yellow hair: elytra attenuated; tip obliquely truncate, subemarginate; the external angle acute and prominent, the inner one rounded. Length rather more than two-fifths of an inch. Two specimens of this species were taken by Mr. T. Nuttall on the banks of the lower part of the Missouri. 7. L. PROXIMA.-Black; elytra testaceous, with a black tip. Inhabits Missouri. Body deep black, hairy: antennae nearly as long as the body: thorax rounded or subovate; a transverse groove on the posterior margin, and an impressed line on the anterior margin: elytra testaceous, with very short, yellowish hairs; tip black, truncate on the edge: beneath, with long hair on the pectus, and short hair a little sericeous on the postpectus and venter: tail entire. Length less than three-fifths of an inch. Var. a. Elytra testaceous, destitute of the black tip. I have not seen this insect in Pennsylvania. It seems to be very closely allied to L. tomentosa Fab., but is larger, more robust, and the tail is not [421] emarginate as that of tomentosa. [Vol. III. OF PHILADELPHIA. 199 The variety may prove to be a distinct species, bearing a similar relation to proxima that the testacea of Linne does to the tomentosa. 8. L. LINEOLA —Black; elytra punctured; suture, margin and vitta, black. Inhabits the United States. Leptura Uizeola Knoch in Melsh. Catal. Body black, sericeous: antenna, excepting the three basal joints, annulate, with black and yellowish: trophi yellowish: thorax, posterior angles prominent, acute: elytra punctured; suture, exterior margin, tip, and an abbreviated vitta, black; tip truncato-emarginate: feet pale testaceous: tarsi blackish: abdomen dark reddish-brown, sericeous. Length two-fifths to nine-twentieths of an inch. This is an inhabitant of various parts of the United States. It is found in Pennsylvania, and on the Mississippi, though I have not observed it to be common any where. 9. L. RUFICOLLIS.-Black; thorax rufous; labrum pale. Inhabits Kentucky. L. collaris Melsh. Catal. Body black, with very short hairs: antennae, basal joint dull rufous: labrum and mouth pale rufous: thorax rufous, subglobose in the middle; and with a flattened, anterior, and posterior margin: elytra not tapering, confluently punctured, [422] black, entire at tip: beneath sericeous: feet varied with testaceous. Length less than three-tenths of an inch. In the distribution of colors it approaches L. thoracica Fab., but is a much smaller species. It is also very different from the collaris Linn. of Europe, in being smaller and of a more slender form. RHAGIUM Fabr. 1. R. TRIVITTATUM.-Black; elytra with black suture, yellow vitta, black central line, and rufous margin. Inhabits Mississippi. Head black: clypeus, mouth and antennae rufous: thorax uneven, very little narrowed before; an anterior and posterior impressed band, and a dorsal, impressed line: scutel black: elytra hardly emarginated; humerus prominent; suture black, 1824.] 200 ACADEMY OF NATURAL SCIENCES broader near the base; a broad, yellowish vitta hardly reaching the tip; a black line from near the base separates the vitta from the rufous margin: body, beneath black, with golden pubescence; feet and abdomen rufous. Length seven-tenths of an inch. The body is sometimes rufous. In the disposition of colors on its elytra, this species probably bears some resemblance to R. cursor. It is certainly generically distinct from R. lineatum, which [423] is the only true Rhagium of this country that I have seen, though it is highly probable that there is another species. [Belongs to Toxotus.-LEc.] 2. R. CYANIPENNE.-Black; antenna and feet testaceous; elytra blue. Inhabits the United States. Body black, tinged with cupreous, punctured; head densely punctured; a longitudinal, obsolete, impressed line: antennae rather shorter than the body, testaceous: trophi piceous-yellow: thorax impunctured; an obtuse tubercle each side: scutel black: elytra violaceous-blue; punctures numerous, small, profound; tip truncate; humerus rather prominent: feet testaceous. Length two-fifths of an inch nearly. A rare insect. I obtained a specimen several years since near Philadelphia, and recently Mr. Nuttall presented me with a specimen which he captured during his botanical expedition to the Arkansa river. In form of body, it very much resembles Leptura collaris and L. viryinea, as figured by Olivier, to which genus I would have referred it, but for the small thoracic tubercles. [The type of Gaurotes Lee. Journ. Acad. Nat. Sc. 2d ser. 1, 325. Synonyms are Pachyta Servillei Serv.; P. lone Newman; P. Leonardi Hald.-LEC.] CLYTUS Fab. Latr. 1. C. IIAMATUS. —[Ante 1, 118.] [424] 2. C. CAPREA.-[Ante 1, 120.] [425] 3. C. SUPERNOTATUS.-Reddish-brown; each elytron with a large white spot behind on a larger black one. Inhabits Missouri. [Vol. IIT. OF PHILADELPHIA. 201 Body cylindrical, reddish brown, punctured, partially covered by very short, prostrate hair: head blackish; antennae reddishbrown, shorter than the body; thorax in the middle blackish and [426] more prominent: elytra entire; each elytron with an elevated obtuse tubercle near the scutel: a black, longitudinal spot from before the middle, where it is margined with a whitish line, to near the tip; before its posterior termination it is interrupted by a large white spot. Length one-fourth of an inch. Found by Mr. Thomas Nuttall on the Missouri. [The type of the Lamioid genus Psenocerus Lee. Journ. Acad. Nat. Sc. Phila. 2d ser. 2, 158, but incorrectly considered by me as identical with\Callidium pini 01., which is really a species of Euderces Lec.-LEc.] STENOCORUS. 1. S. LONGIPES.-Black; thorax cylindrical, mutic, rufous; thighs clavate; elytra bidentate. Inhabits Missouri Territory. Body elongated, black, punctured, subglabrous: head between the antennae concave: antennae longer than the body: thorax rufo-sanguineous, cylindrical, slightly dilated into a very obtuse tubercle each side behind the middle; punctures obsolete: scutel impunctured: elytra with large, rounded, deeply impressed, numerous punctures; apex truncato-sinuate, bidentate: thighs clavate; posterior ones elongated: postpectus and abdomen covered with dense, short, incumbent, cinereous hair. Length five-sixteenths of an inch. Found at Fort Kennedy, on Barek Creek, Missouri Territory. It is an elongated insect, resembling a Necydalis. The posterior thighs are much elongated, and, like the others, are clavated at tip. [Belongs to Rhopalophora: failing to recognize the genus, I described it as Tinopus.-LEc.] 2. S. MUCRONATUS.-Brown, with cinereous hair; antennae three or four spined; thighs mucronate; elytra bidentate. Inhabits the United States. Stenocorus marylandicus Melsh. Catal. 1824.] 202 ACADEMY OF NATURAL SCIENCES Body reddish-brown, partially covered with short, prostrate' cinereous hair, inequally distributed: trophi pale rufous: mandibles black at tip: antennae longer than the body; third, fourth, fifth and sixth joints terminated each by a spine, the first one largest, two-thirds the length of the next joint: thorax with two tubercles before the middle, two longitudinal ones at base, and a longitudinal line, glabrous: scutel white, with dense hair, divided into two lobes: elytra punctured; hair so disposed as to give the surface an irregularly maculated appearance; tip bispinose; intermediate and posterior thighs bimucronate; the inner spine longest. Length seven-twentieths of an inch. This species is not the S. marylandicus of F^br., as described and figured by Olivier, which is a much larger and more dilated insect; the thighs not mucronate, and the joints of the antennae spinous to the tip. It is, perhaps, more closely related to S. spizicornis Fab., but that insect is described as having the joints of its antennae bispinous at tip. It is a common insect in many sections of the United States and is by no means rare in Pennsylvania; [428] we obtained specimens on the Missouri, Platte, and Arkansa rivers. [Belongs to Elaphidion.-LEc.] MOLORCHUS Fabr. M. BIMACULATUS.-Black, hairy; elytra testaceous on the disk. Inhabits the United States. Molorchus bimaculatus Knoch in Melsh. Catal. Antennae, palpi and feet rufous: thighs clavate: elytra testaceous; basal, exterior, and posterior margins black. Length nearly one-fourth of an inch. The feet vary in being sometimes fuscous. DONACIA. D. IEQUALIS.-Brassy, with two dilated, indented, subsutural spots on the elytra, and an indented, humeral line; two elevated lines between the eyes. Inhabits Missouri. Body aeneous, polished, punctured, glabrous: head with short, [Vol. III. OF PHILADELPHIA. 203 cinereous pubescence; an obsolete, indented line; two elevated tubercles between the eyes, extending in a depressed ridge to the base of the antennae, where it is slightly more elevated: eyes black: antennae clothed with cinereous pubescence; second and third joints equal: palpi and mandibles black: thorax densely punctured; punctures sometimes confluent; a longitudinal, [429] indented line; a lateral, dilated, hardly elevated tubercle before the middle: scutel minutely punctured and rugulose: elytra with regular series of punctures; surface slightly rugulose; two subsutural, dilated, obsolete, indented spots near the middle, and a subhumeral, impressed, dilated line at base: beneath argenteous-pruinose: feet cupreous, pubescent; a robust spine beneath the posterior thighs near the tip. Length rather less than seven-twentieths of an inch. Var. a. Body above cupreous, polished. Found near Engineer Cantonment. LEMA Fabr. 1. L. TRIVITTATA. —Rufous; elytra pale; suture and marginal vitta of the elytra black. Inhabits the United States. Crioceris trivittata Knoch in Melsh. Catal. Body rufous, impunctured: antennae black; first joint rufous: thorax contracted each side on the middle; two black spots above, placed one on each side rather before the middle; sometimes obsolete: scutel black: elytra pale yellow; suture and exterior submarginal line black; punctures arranged in series: tibia, at tip, and tarsi, black. Length less than three-tenths of an inch. Var. a. Thorax entirely rufous, immaculate. [430] I obtained specimens of this species from the vicinity of the Rocky Mountains. [This is L. trilineata Ol.-LEc.] 2. L. COLLARIS.-Black; thorax rufous; elytra green, striate with punctures. Inhabits Missouri. Body black: head rugose, with an impressed, longitudinal line; a slight tubercle above each antenna: thorax bright rufous, impunctured; contracted each side behind the middle, and with 1824.] 204 ACADEMY OF NATURAL SCIENCES an impressed, transverse line near the base above: scutel minute: elytra bright bluish-green, with nine series of longitudinal punctures: beneath black, polished, impunctured. Length more than one-fifth of an inch. Found on the Tradescantia virginica. ORSODACNA Latr. O. VITTATA.- Black, punctured; elytra pale testaceous; suture and outer margin black; feet rufous. Inhabits Missouri. Body black, punctured: basal joints of the antennae, labrum and palpi obscure reddish-yellow: thorax with dilated, confluent punctures: elytra with dilated, confluent, dense punctures, pale yellowish-white; suture and exterior margin black: feet pale rufous: tarsi dusky. Length nearly one-fourth of an inch. Found in Missouri. [431] HISPA Linn. Latr. 1. H. LATERALIS.-Black; thorax, each side, and humerus yellowish. Inhabits Illinois and Missouri. Body black, punctured: head impunctured, rugose above between the eyes: front with a prominent tubercle beneath the antennae: antennae more robust towards the tip: thorax with a dilated, reddish-yellow margin confluent before: pectus yellowish; each side behind black; postpectus posterior to the intermediate feet, impunctured, polished: feet punctured; anterior thighs annulate, with yellowish at base; intermediate and posterior ones with a large yellowish spot near the base: elytra serrate, each with three double and one quadruple series of large, rounded, profoundly impressed punctures, separated by three elevated lines, and a common sutural one; a humeral, reddish-yellow spot attenuated behind, and terminated over the origin of the posterior feet: abdomen impunctured, polished. Length three-tenths of an inch. Obtained on the bank of the Mississippi, above the confluence of the Ohio river, and also near the Rocky Mountains. It is destitute of the frontal dot of humeralis, but is probably more [Vol. III. OF PHILADELPHIA. 205 closely allied to sanguinicollis, and may prove to be scapularis Oliv., [432 ] the description of which I have not seen. [Belongs to Anoplitis Kirby, and is Hispa scapularis 01.LEC.] 2. H. PALLIDA.-Yellowish-white; elytra with punctured striae, elevated lines, and blackish, linear spots towards the tip. Inhabits the United States. Body pale testaceous, densely punctured: head with a longitudinal, impressed line, and indented point each side near the eyes: thorax quadrilineate, with black: elytra serrate; each elytron with three obtuse elevated lines, and a common one; a blackish spot before the tip of the common line, one or two black spots behind the middle of the second line, and one before the middle; two upon the next line, of which one is upon the middle of it; two upon the next line, and two corresponding ones upon the lateral edge; between each two of the elevated lines are double series of profoundly impressed, large, transverse punctures: feet pale testaceous: beneath black or pale yellowish, varied with black: venter black or pale yellow, with four series of brown spots. Length about three-twentieths of an inch. [Appears to be Hispa rosea Weber.-LEc.] 3. H. OBSOLETA.-Blackish; thorax with punctured striae, elevated lines, and obsolete, yellowish spots. Inhabits the United States. Head dull rufous, black at base, and with a black line impressed in the middle: antennae black: thorax dull yellowish, with four equidistant [433] black lines: elytra black, serrate, each with three elevated lines, and a common sutural one, separated by double series of large, profoundly impressed, transverse punctures; several small dull yellowish or rufous spots on the elevated lines, (placed similarly to the black elytral spots of the preceding species) and a larger spot at tip; beneath black: feet pale testaceous. Length three-twentieths of an inch. Very similar to the preceding species, than which it is more common; as in that insect the spots on each elytron are arranged in two oblique bands, of which the anterior one is much more 1824.] 206 ACADEMY OF NATURAL SCIENCES oblique than the posterior one; but as several of these spots are often obsolete or wanting, the bands are not alway to be traced. [This is H. inequalis Weber; H. flavpes Germ. is a synonym. -LEC.] 4. H. CYANEA.-Bluish-violaceous; beneath black; vertex rugose. Inhabits Missouri. Body above bluish-violaceous: head dusky: vertex with three longitudinal grooves, which attain the base of the antennae: antennm black: thorax with confluent, dilated, excavated punctures; elytra with regular series of large, dilated, punctures: interstitial lines slightly elevated; serratures of the margin and tip obsolete; beneath black. Length less than one-fourth of an inch; male much smaller. 5. H. COLLARIS.-Thorax red; elytra blue; beneath black. [434] Inhabits Arkansa. Head black: antennae, five terminal joints clothed with minute, cinereous hairs: thorax bright rufous, indented on the middle of the base; punctures much dilated, profound: elytra blue, with regular series of large, dilated punctures; interstitial lines slightly elevated; edge distinctly serrated; beneath black. Length less than one-fourth of an inch. I found but a single specimen near the Rocky Mountains. [A Microrhopala unknown to me.-LEC.] CASSIDA C. UNIPUNCTATA.-Yellow; margin whitish; thorax with a black spot. Inhabits Missouri. Body oval, yellow: head whitish: antennae black at tip: labrum black: thorax, anterior and lateral margin white: an abbreviated, black line on the middle: elytra irregularly punctured; margin pale or whitish: beneath black, varied with whitish: feet whitish. Length two-fifths, breadth about one-fourth of an inch. The form of this species is more oblong than any other of its American congeners; it is also of a larger size than either of them that I have seen. [335] [Vol. III. OF PHILADELPHIA. 207 IMATIDIUM Fabr. 1. I. 17-PUNCTATUM.-Yellowish; thorax four-spotted; elytra twelve-spotted. Inhabits Arkansa. Body pale yellowish, punctured: antennae black at tip: front with an impressed line: mouth dusky: thorax four-spotted in a transverse series; the two intermediate spots most distant: scutel black: elytra each six-spotted; spots subequal, placed obliquely 2, 2, 2, and an obsolete common one near the suture: beneath yellow, or yellow varied with black: tarsi black. Length two-fifths, breadth one-fourth of an inch. The position of the black spots is as in 13-punctata, but their number differs; the general color is different, and 17-punctata is of a more slender form than its congener. Found near the Rocky Mountains. [This is C. cribraria Fabr., and belongs to Chelyrnorpha.LEc.] 2. I. CYANEUM.-Suborbicular, blue, with dilated punctures; antenna pale. Inhabits Georgia. Body deep blue, suborbicular, with profound, excavated punctures; head slightly punctured; a longitudinal, impressed line: antennae, excepting the basal joint, pale yellow: thorax, posterior edge forming nearly a semicircle, lobate at the scutel; lateral edge almost transverse; anterior margin very profoundly emarginate; punctures, each side [436] dilated, on the middle obsolete: scutel purple, truncate at tip: elytra, humeral angle advanced subacute; punctures arranged in series, and each with a minute, central, purplish tubercle; tergum sanguineous: beneath black, impunctured. Length one-fifth of an inch. A very beautiful species, commmon on the sea islands of Georgia and East Florida. [Belongs to Porphyraspis Boh., and is Cassida erythrocera Germ. The specific names both bear the date of 1824; the one of Germar is adopted by Boheman and will therefore prevail.LEC.] 1824.] 208 ACADEMY OF NATURAL SCIENCES CLYTHRA Laich, Latr. C. 4-GUTTATA.-Black; elytra, with a large, red, humeral spot, and an orbicular terminal one. Inhabits the United States. Cryptocephalus 4-guttatus Oliv. in 3Ielsh. Catal. Body deep black, polished, punctured: head and thorax, punctures minute, profound; elytra, punctures obsolete or very slightly impressed; a large red spot on the humerus, and another orbicular one at the tip of each. Length three-twentieths of an inch. Very much resembles Cryptocephalus 4-maculatus. [Previously described as C. laticlavis Forster, C. obsita Fabr., and C. nigripes Fabr.; C. ephippium Germ. is also a synonym.LEC.] CRYPTOCEPHALUS. 1. C. NIGRICORNIS.-Black; thorax and elytra obscurely margined with rufous. Inhabits Missouri. Body black, punctured: labrum and basal joints [437] of the antennae, beneath rufous: thorax, lateral margin rufous; edge black: elytra with regular series of punctures; exterior margin, tip, base, and subsutural line obscure rufous; edge black; an obsolete, rufous spot each side of the tail. Length less than three-twentieths of an inch. One or two of the interstitial lines of the elytra are sometimes very obsoletely rufous, particularly in the larger females. In some of the males the rufous margin is hardly perceptible. [Belongs to Pachybrachys, according to Suffrian, Linn. Ent. 7, 161.-LEc.] 2. C. ABDOMINALIS.-Gray-brown; the punctures black; beneath black; feet and margin of the abdomen pale. Inhabits Missouri. Body gray-brown, punctured: head and thorax irregularly clouded with markings composed of blackish, impressed punctures: elytra striate with black punctures: beneath black: feet pale, with a black femoral spot; edge of the venter pale: tail whitish, with small, blackish dots. [Vol. III. OF PHILADELPHIA. 209 Length less than three-twentieths of an inch. [Also a Pachybrachys. —LEc.] 3. C. FASCIATUS.-Yellowish, varied with rufous: elytra with three bands; beneath rufous. Inhabits Missouri. Body yellowish, punctured: head rufous; orbits yellowish; punctures crowded, irregular: eyes black, transverse: antenna dusky at tip: labrum dusky at base: thorax varied with yellowish and rufous; punctures sometimes confluent; posterior angles a little produced backwards and acute: [438] scutel rounded at tip: elytra striate, with large, deeply impressed punctures; punctures at tip irregularly disposed; three dilated, somewhat undulated, rufous fasciae: beneath rufous: feet somewhat paler. Length about three-twentieths of an inch. Found near the Konza river. At first sight it might be taken for a variety of C. congestus, of which the spots had become confluent into bands, but the much punctured thorax is a distinguishing character that cannot in this instance be mistaken. 4. C. PUNCTIPES.-Black; front two-spotted; thorax with three spots, and margin rufous; elytra varied with whitish spots. Inhabits Arkansa. Body black, punctured: labrum each side, base of the antenne, three or four small obsolete spots between the antennae, and two larger ones between the eyes, dull rufous: thorax, anterior and lateral margins, two oblique, dilated, abbreviated lines at base, and one at tip dull rufous: elytra with punctured striae; basal edge, three large marginal spots, of which one is terminal; a smaller one on the middle, near the suture, and two or three smaller ones near the base, yellowish: thighs with a white oblong spot near the anterior tip: tail with two dull rufous dots, and a smaller one each side on the terminal ventral segment. Length less than one-fifth of an inch. Corresponds in some respects with Olivier's [439] description of his C. brunnipes, but besides some other differences, the antennae are shorter than the body. It may possibly, however, be the same. 1824.] 14 210 ACADEMY OF NATURAL SCIENCES 5. C. FEMORATUS.-Black; labrum white; thorax with three rufous spots; elytra with a whitish, basal edge. Inhabits Arkansa. Body black, punctured: antennse pale rufous at base: eyes approaching above: labrum white: thorax with a dilated, longitudinal, red spot on the lateral margin, and a line in the middle much dilated on the basal margin and edge; elytra, punctures irregularly disposed, and approximate at base, becoming in regular series towards the tip; basal edge white: anterior thighs more robust than the others. Size of the preceding. The form of this species is very like that of punctipes. Varies in having the thorax entirely red, slightly shaded with black; with a few small whitish points on the posterior part of the elytra, and obsolete white spots on the anterior femora. [Belongs to Pachybrachys, and is the same with C. luridus Fabr.-LEC.] 6. C. RECURVUS.-Black; margins of the thorax and elytra yellowish. Inhabits the United States. Body black: head impunctured: labrum dark piceous: thorax yellowish-rufous, impunctured; a large, dorsal, black spot which attains the posterior but not the anterior edge; a small round dot each side sometimes obsolete or wanting: elytra with [440] punctured strie; exterior and terminal margins yellow; edge black: beneath all black. Length about one-ninth of an inch. A pretty little species, and bears some resemblance to CIhrysomela marginella of Donovan, and as in that species, the yellow of the terminal margin is recurved for a short distance upon the sutural margin. It is probably allied to the C. lituratus Fab. [This is a variety of C. lituratus Fab.-LEc.] 7. C. CONFLUENTUS.-[Ante 1, 64.] 8. C. BIVITTATUS.-[Ante 1, 65.] [441] 9. C. 4-MACULATUS.-Black; elytra with a large red spot on the humeral base, and an orbicular terminal one. Inhabits the United States. Cryptocephalus 4-maculatus Knoch in Melsh. Catal. [Vol. III. OF PHILADELPHIA. 211 Body deep black, polished, obsoletely punctured: labrum at tip, and antennae at base, pale: elytra with striae of large profound punctures; a large, red, humeral spot extending along the base to the scutel, and along the exterior margin nearly to the middle: a large, orbicular, red spot near the tip of each elytron. [442] Var. a. Humeral spot not extending along the base, but oblongoval. Var. b. Humeral and terminal spots elongated so as to unite on the margin. Length one-fifth of an inch. Very similar in color and appearance to Clythra 4-guttata. COLASPIS Fabr. Latr. 1. C. PRETEXTA.-Metallic; thorax and elytra edged with green; antennae and feet pale. Inhabits the United States. Eumolpus metallicus Knoch in Melsh. Catal. Body dull reddish or dusky, tinged with cupreous; polished, punctured; head, punctures remote; a profoundly impressed, frontal line: antennae and palpi pale, whitish: labrum and tip of the clypeus somewhat piceous: thorax, punctures profound, subequally distributed; lateral, reflected edge green: scutel, punctures obsolete: elytra, punctures, rather large, scattered irregularly at base; near the tip smaller, and approaching regular series; beneath piceous: feet pale. Length more than one-fifth of an inch. It is not uncommon on the myrtle. The name metallicus is pre-occupied. [This is C. picipes 01.; it is placed in Dejean's Catalogue in Chalcophana, a genus of which I have not seen any description. -LEC.] 2. C. OVATA.-Blackish-coppery, convex; antennae and feet pale rufous. Inhabits the United States. [443] Eumolpus ovatus Knoch in Melsh. Catal. Body blackish, with a cupreous tinge, punctured: head densely punctured: antennae and palpi entirely pale rufous or yellowish: labrum piceous: thorax with dense, somewhat equally distributed punctures: elytra, punctures longer, and irregularly disposed at 1824.] 212 ACADEMY OF NATURAL SCIENCES base; near the tip smaller, and approaching regular series; beneath blackish: feet pale rufous. Length more than one-tenth of an inch. A much smaller and much more convex species than the preceding one. In the form of the terminal joint of the maxillary palpi, this species closely approaches the genus Eumotpus. 3. C. CoNVEXA.-Blackish; labrum and base of the antennae rufous; an indented line on the vertex. Inhabits Missouri. Body convex, blackish, tinged with greenish or dull cupreous, punctured: head minutely punctured; an indented, abbreviated line near the vertex, which does not extend below a line drawn between the middle of the eyes; space between the antennae plain: antennae black; six basal joints pale rufous: labrum piceous: palpi pale at base; tip black: thorax densely and minutely punctured: elytra with large and more distant punctures, some of which become almost regular series near the tip: beneath black, somewhat tinged with brassy: feet piceous-black: thighs subclavate. [444] Length less one-fifth of an inch. 4. C. STIATA.-Black; labrum, palpi, and base of the antennae, dull rufous; elytra striate, with punctures. Inhabits Missouri. Body black, punctured, immaculate: head with obsolete, small punctures; an obsolete, indented abbreviated line near the vertex, hardly attaining a line drawn between the middle of the eyes: antennee, five or six basal joints dusky rufous: labrum piceous: palpi pale at base: thorax, punctures minute, not deeply impressed: elytra with regular series of large, profound punctures: thighs dilated in the middle. Length three-twentieths of an inch. [A species belonging to Paria Lee., Proc. Acad. Nat. Sc. Phil. 1858, 86; it is C. aterrima Oliv.-LEc.] 5. C. PUNCTICOLLIS.-Greenish or cupreous; thoracic punctures oval; labrum and antennae at base rufous. Inhabits Missouri. Head and thorax with crowded, longitudinally oval, profound punctures: antennae black-brown; six basal joints pale; labrum [Vol. III. OF PHILADELPHIA. 213 and mandibles piceous: palpi pale at base: elytra, punctures scattered, near the tip placed in obsolete series: feet dark piceous: thighs black. Length three-twentieths of an inch. Very similar to C. convexa, but is smaller, and the thoracic punctures are larger. The feet are sometimes entirely rufous. [445] 6. C. 1O-NoTATA. —Rufous-brown, hairy; elytra each with about six obsolete, black spots. Inhabits the United States. Body dark reddish-brown, punctured, clothed with short cinereous hair: labrum and base of the antennae yellowish: thorax emarginate: elytra with dilated, confluent punctures: humerus prominent; each with a black spot on the middle of the base, one on the humerus, a linear, dorsal one near the suture, a fourth near the margin, sometimes double, and a double one before the tip: thighs with a projecting angle beneath. Length less than three-twentieths of an inch. A very distinct species; it may perhaps, with almost equal propriety, be referred to the genus Eumolpus. [Belongs to Pachnephorus.-LEc.] 7. C. 6-NOTATA.-Pale; each elytron with three black spots. Inhabits the United States. Body pale punctured: front with an obsolete black spot: elytra with regular series of punctures, which disappear towards the tip; a black, linear spot near the base, and two others on the middle, which are parallel and approximate, and of which the interior one is placed rather further backward: beneath black: pectus, feet, and posterior portion of the venter, pale: thighs with a slight angle beneath. Length about three-twentieths of an inch. [446] I have found this specimen in considerable numbers on the common Juniper in July. [Belongs to Paria.-LEc.] 8. C. 4-NOTTAT. —Black; head rufous; elytra testaceous, with two black spots. Inhabits the United States. Body black, punctured: head obscure rufous: antennae paler at base: thorax black, immaculate; punctures sparse, not pro1824.] 214 ACADEMY OF NATURAL SCIENCES found: scutel pale reddish-brown: elytra pale testaceous, with stripe of punctures, which become obsolete before the tip; a black, oblique spot near the base of each, and a larger obliquely, quadrate one on the middle; exterior edge black: feet pale: thighs with a minute angle beneath. Length about three-twentieths of an inch. It has considerable resemblance to the preceding. [Also a Paria.-LEC.] 9. C. PALLIDA.-Pale rufous: elytra pale testaceous, immaculate. Inhabits Missouri. Body very pale rufous; head obsoletely punctured; an indented, abbreviated line or spot on the vertex: thorax, punctures small, sometimes obsolete: elytra pale testaceous, with striae of punctures which become obsolete before the tip: beneath pale. Length three-twentieths of an inch. Very similar to C. 6-notata, but is always destitute of spots on the elytra. [This and the next belong to letachroma, as limited by me, Proc. Acad. Nat. Sc. Phila. 1858, 85. I consider them both as varieties of M. quercatum.-LEc.] [447] 10. C. DUBIOSA.-Pale rufous; elytra pale testaceous, with a black suture dilated at base. Inhabits Arkansa. This species seems to differ from the preceding, only by having a black suture dilated at base, a black lateral edge on the anterior half; sometimes obsolete, and a black, basal ventral segment; the thorax is sometimes obsoletely dotted with black, and in one specimen is a small black spot anterior to the middle of each elytra; the 6-notata, 4-notata, pallida, and dubiosa may possibly prove to be the same species, exhibiting remarkably distinct variations in the distributions of its colors. Found near the Rocky Mountains. I think it possible that dubiosa may prove to be a variety of Crytocephalus canellus Fabr. 1I. C. FAVOSA.-Greenish, with dilated, profound punctures: antennae black, testaceous at base. Inhabits Arkansa. Body greenish, with a coppery tinge, with numerous, approxi[Vol. III. OF PHILADELPHIA. 215 mate, irregularly disposed, confluent, profound, dilated punctures: eyes brown: antennae black, dark testaceous at'base: labrum piceous, impunctured: edge of the thorax and elytra more exclusively bluish or violaceous; punctures of the elytra larger than the thoracic ones; humeral prominence impunctured: pectus with smaller punctures: postpectus with a few minute punctures furnishing minute hairs, and with [448] the venter, which is impunctured, bluish-violaceous: feet dark violaceous. Length one-fourth of an inch. 12. C. DENTICOLLIS.-Lateral thoracic edge three-toothed; elytra serrate. Inhabits Missouri. Body black, slightly bronzed, covered with dense, robust, cinereous hairs: antennae dull rufous at base: thorax with three equal, equidistant teeth on the lateral edge: elytra, lateral edge minutely dentated; tip simple: anterior tibia and posterior thighs one-toothed. Length nearly one-fifth of an inch. [Belongs to Myochrous Chevr., of which I have seen no description.-LEC.] 13. C. INTERRUTPTA.-Rufous; thorax with two spots; elytra, suture, exterior edge, and abbreviated vitta, black. Inhabits Arkansa. Body rufous, punctured: antennae black; five basal joints pale rufous: thorax with a large black spot on each side: scutel piceous: elytra rather paler, with regular punctured striae, which are nearly obsolete at tip; a black sutural line, exterior edge, and oblique vitta, which originates upon the humerus, is interrupted at the middle, and terminates before the tip: beneath blackish: feet pale rufous. Length one-fourth of an inch. Found near the Rocky Mountains. [Belongs to Metachroma.-LEC.] [449] EUMOLPUS Fabr. Latr. E. CRYPTICUS.-Entirely covered with short, cincereous hair; elytra very acute at tip. Inhabits Missouri. 1824.] 216 ACADEMY OF NATURAL SCIENCES Body densely covered with short, robust, cinereous hair, beneath which the surface is dull reddish, inclining to cupreous; punctured: scutel dusky, sparsely hairy: elytra with very small, profound punctures, which are more distant from each other than the length of their diameters; tip attenuated equally from the suture and exterior edge; a little produced, and terminating acutely. Length less than two-fifths of an inch. Very similar to a smaller species which Mr. F. N. Melsheimer, in his catalogue, names pilosus; but the elytral punctures of that insect are much more crowded. CHRYSOMELA of Authors. 1. C. HYBRIDA.-Ferruginous; elytra pale yellow; suture and three lines on each ferruginous. Inhabits Missouri. Body oval, punctured, ferruginous: thorax irregularly punctured, and with large, confluent punctures each side: scutel impunctured, rounded at tip: elytra, with the suture and three lines, rufous; the intermediate line undulated, and united [450] to the exterior one at base, and abbreviated at tip: wings pink red. Length more than three-tenths of an inch. Very much resembles C. exclamationis Fab., but, besides other differences, the exterior elytral line is not interrupted; in the color of the thorax it approaches Fabricius' description of that species. Brought from the Missouri by Mr. T. Nuttall. 2. C. MULTIPUNCTATA.-Ferruginous; thorax yellow, with a ferruginous curve; elytra yellow, with numerous green spots. Inhabits Missouri. Head and all beneath ferruginous; thorax yellow, with a ferruginous, irregular, arquated line and basal edge, including an obsolete dot: elytral with a sutural line, and numerous, irregular, green dots and abbreviated lines, and immaculate, exterior margin: wings rosaceous. Var. a. Suture with a common, ferruginous fillet. Size of C. philadelphica, which it closely resembles; but, although it varies much, it may always be distinguished from that [Vol. III. OF PHILADELPHIA. 217 species by the colors of the head and thorax, which, in the philadelphica, are always green, immaculate. Numerous specimens were brought from Missouri by Mr. T. Nuttall. 3. C. DISSIMILIS.-Dark purple or greenish; antennae black; beneath blued-black. [451] Inhabits Missouri. Body dark purple, violaceous or greenish, punctured; punctures profound, subequally distributed: head impressed between the antennae: antennae and palpi black: thorax regularly convex; lateral edges regularly arquated; scutel impunctured: elytra destitute of striae: beneath blued-black: venter, punctures sparse. Length more than one-fifth of an inch. Varies in its colors. It is sometimes of a very dark purple color, and sometimes of a bright green, more or less tinged, however, with violaceous, particularly about the suture. 4. C. FORMOSA.-Green-gold, brilliant: antennae black; suture of the elytra purple; beneath violaceous. Inhabits Missouri. Body golden-green, brilliant, punctured: antennae and palpi black: labrum purplish: thorax somewhat inequal; edges bluish: scutel purple, impunctured: elytra slightly and irregularly rugose, punctured; suture purple; exterior edge blue: beneath violaceous: tibia black. Length more than three-twentieths of an inch. A brilliant little insect. 5. C. BASILARIS.-Green; antennae black; basal joint rufous; thorax with a thickened margin. Inhabits Arkansa. Body green, very slightly glossed with violaceous, punctured: vertex with an impressed line: [452] antennae black; basal joint rufous: thorax indistinctly punctured; punctures distant; lateral margin much thickened: elytra with irregularly scattered punctures: venter dusky, with a greenish gloss. Length less than one-fourth of an inch. I obtained this species near the Rocky Mountains. [Unknown to me.-LEc.] 1824.] 218 ACADEMY OF NATURAL SCIENCES 6. C. AURIPENNIS.-Violaceous; margin of the thorax thickened; elytra golden. Inhabits Arkansa. Body violaceous: antennae black, dark violaceous at base: thorax with slight, distant punctures; lateral margin much thickened: scutel violaceous, rounded: elytra golden-cupreous, brilliant; exterior edge green, punctured; punctures placed in somewhat regular series. Length more than one-fourth of an inch. A very beautiful insect, of which I obtained but a single specimen near the Rocky Mountains. 7.. LAVOMARGTNATA.-Black; thoracic margin thickened; elytra margined with yellowish. Inhabits Missouri. Body black, punctured: thorax, punctures each side larger; lateral margin thickened: elytra with regular series of punctures, and smaller irregularly disposed punctures: exterior margin and tip yellowish; beneath black. Length more than one-fourth of an inch. Collected in Missouri by Mr. T. Nuttall. [453] HELODES Payk. H. OBSOLETA.-Black; thorax and elytra margined with yellowish. Inhabits Missouri. Body blackish, punctured; head and thorax tinged with green, margin of the latter yellowish, thickened, with a black, insulated point: elytra tinged with violaceous, irregularly punctured; margin, tip, and obsolete lines before and behind the middle, yellowish: beneath black, immaculate. Length three-tenths of an inch. Var. a. Obsolete lines none. [Belongs to Chrysomela, as at present received.-LEc.] DORYPHORA Illig. 1. D. 10-LINEATA.-Yellow; thorax litterate, with black; elytra each with five black lines. Inhabits Missouri and Arkansa. [Vol. III. OF PHILADELPHIA. 219 Body yellow: head with a triangular, black, frontal spot: thorax, two abbreviated, black, approximate lines, divergent before; about six black dots on each side: elytra, suture, and five lines on each, black; the interior line is confluent with the suture behind; exterior line marginal; three intermediate ones joined or approximated at tip: beneath, incisures and three or four series of ventral spots black. Length two-fifths of an inch. [454] Var. a. Elytra white: the two outer intermediate lines are united at base and tip. This species seems to be not uncommon on the Upper-Missouri, where it was obtained by Mr. Nuttall and by myself. The variety I found on the Arkansa. 2. D. 3-MACULATA.-Bluish-green; elytra yellow, with a common band, and each with a triangular, black spot near the tip; feet purplish. Inhabits the United States. Chrysomela maculata MIelsh. Catal. " trimaculata? Fab. Syst. Eleut. Bluish-green, punctured: antennae and palpi black: elytra punctured in double lines, which become confused near the tip; a dilated, black band extending in breadth from near the base to the middle, not attaining the lateral edge, and often interrupted in the middle of each elytron; a large, triangular spot near the tip of each elytron: beneath black-blue; feet purplish. Length two-fifth of an inch. A common insect. Mr. Nuttall captured a specimen with the band interrupted into small spots, and the triangular spot near the tip entirely wanting. This species is no doubt closely related to Chrysomela trimaculata of Fabr., if not the same, which I believe it to be, although that insect is said to be a native of South America, and the tarsi are not rufous as those of that insect are described [455] to be. The terminal joint of the maxillary palpi is very short and transverse; in this respect, corresponding in character with the palpi of the genus DorypZhora, as defined by Mr. Latreille, and, although, as in the preceding species, the prosternum is not remarkably advanced, I prefer arranging it here. 1824.] 220 ACADEMY OF NATURAL SCIENCES GALLERUCA Geoff. Leach. 1. G. CORYLI.-Pale yellowish, testaceous; elytra bifasciate with blue. Inhabits the United States. Illinois. Galleruca coryli J. F. Melsheimer's letter to me. Body pale yellowish-testaceous: head with an impressed line between the antennae: antennae blackish: labrum hirsute: mandibles black at tip: thorax transversely concave in the middle; anterior angles subacute; posterior ones rounded: scutel rounded at tip: elytra somewhat dilated behind the middle, with numerous, minute punctures, a much dilated blue band at base, and a still larger one at tip: wings black. Var. a. Pale yellowish-testaceous, immaculate. Length more than half an inch. A very large species; it is considerably dilated behind, and has probably considerable affinity with the genus Adorium, but the terminal joint of the palpi is not truncated. It occurs in Maryland [456] and Virginia, on the banks of the Missouri, and J. F. Melsheimer informs me that it is so numerous in some parts of Virginia, that it,completely defoliates, in a short time, the Hazel, (Corylus tmericanus) upon which it feeds. [A species of Coelomera.-LEC.] 2. G. TUBERCULATA.-Dull reddish-brown; a slight tubercle at the anterior and posterior angles. Inhabits Missouri. Body dull reddish-brown, immaculate, with prostrate hairs: antennae black, rufous at three basal incisures: thorax with a much dilated, slightly indented spot each side, and an inconspicuous, central line; edge slightly emarginated each side of the posterior angles, which, with the anterior angles, are somewhat elevated, and resemble slight tubercles: elytra irregularly punctured: knees, tibia, and tarsi black. Length one-fourth of an inch. This species is remarkable by its dull, and, with the exception of the antenna and feet, uniform reddish-brown color; the two emarginations near the posterior thoracic angles are so obtuse as to be little more than truncations; the lateral one of which pro[Vol. III. OF PHILADELPHIA. 221 duces an angle at its anterior termination on the middle of the edge. [Belongs to Adimonia,-LEc.] 3. G. DORSATA.-Pale yellowish; elytra blue, with a yellow outer margin and tip. Inhabits Arkansa. Body pale.yellowish: head black on the vertex: antennae black-brown: thorax immaculate; punctures [457] obsolete: scutel blackish-bronze: elytra irregularly punctured, greenishblue; exterior margin and tip yellow; an indented, abbreviated line on the basal middle: feet with a blackish line above. Length one-fourth of an inch. Found on the banks of the Arkansa above the Verdigris. [Unknown to me.-LEc.] 4. G. cIRCUMDATA.-Yellowish; antenna black; elytra purplish-black, with a yellow border and suture. Inhabits Arkansa and Missouri. Body yellowish: head impunctured: antennae black: thorax impunctured, transversely-quadrate; edges nearly rectilinear; scutel yellow: elytra with minute, distant punctures, blackishpurple; suture, exterior margin, and tip, yellow: beneath pale yellow. Length less than one-fourth of an inch. The basal joint of the antennae is sometimes yellowish. [Perhaps a Phyllobrotica described by Fabricius as G. discoidea; but that species has usually the first three joints of the antennae yellow, and the thorax is bifoveate.-LEc.] 5. G. TRICINCTA.-Yellowish head, three elytral bands, and terminal dot, black. Inhabits Arkansa. Head black: thorax yellowish, subquadrate: scutel black: elytra yellowish-white, with three equidistant, dilated, black bands, the first of which is uninterrupted and basal, not attaining the lateral edge, and at the suture extending in a common line near to the second band; second band nearly central, and with the third, not attaining the exterior edge, and interrupted at the 1824.] 222 ACADEMY OF NATURAL SCIENCES suture; a small black dot on each elytron at tip; strie none; punctures numerous, obsolete; postpectus black: knees, tibia, and tarsi black. Length one-fourth of an inch. Observed near the mountains on the bank of the Arkansa river. [Belongs to Diabrotica.-LEC.] 6. G. EXTERNA.-Blackish-brown, confluently punctured; margin of the elytra yellowish. Inhabits Arkansa. Body blackish-brown, with dense, dilated, confluent punctures: head with a longitudinal, indented line: thorax somewhat inequal, with a longitudinal, indented line, and lateral, irregular ones: scutel rounded at tip: elytra confluently punctured, with three or four elevated, impunctured lines; lateral margin and tip slightly dilated, yellow: beneath black. Length more than seven-twentieths of an inch. It is much more robust than G. baccharidis. [This is a species of Adimonia.-LEc.] 7. G. PUNCTICOLLIS.-Dull yellowish-brown; thorax confluently punctured, unequal; antennae and two fillets on each elytron black. Inhabits Mississippi and Arkansa. Body with minute hairs: head, above confluently punctured: clypeus and labrum glabrous: antennae black: thorax rough, with excavated, confluent punctures; immaculate, inequal: elytra with minute punctures; fillets obsolete, often wanting [459] or hardly visible: thighs with a black spot: tibia and tarsi black. Length three-twentieths of and inch. Captured by Mr. T. Nuttall on the Mississippi. I also found specimens on the Arkansa near the Mountains. It considerably resembles G. baccharidis Fab., but, besides its different markings, its thorax is very much punctured. [Appears to be allied to G. notata and G. notulata Fabr.; I have not yet fully identified it.-LEC.] 8. G. ATTENUATA.-Yellowish-brown; thorax with three black [Vol. III. OF PHILADELPHIA. 223 spots; elytra greenish-blue, polished [punctured?]; margin and abbreviated fillet yellowish. Inhabits Missisippi. Body yellowish-brown: head with an impressed line on the front: antennae and vertex black: thorax with a dorsal spot and lateral one each side, black: elytra greenish-blue, with very minute, crowded, and confluent punctures; fillet attenuated, arising from the middle of the base, and terminating beyond the middle of the elytron, and with the exterior margin and tip yellowish-brown. Length three-tenths of an inch. The fillet varies in length, and its breadth sometimes continues undiminished to the tip. Captured by Mr. T. Nuttall. [I have a species which agrees with this except that the elytra are not polished, nor do I think that character will be found in any species having three thoracic spots.-LEc.] 9. G. DECORATA.-Yellowish; antennae, vertex, and two spots on each elytron black. Inhabits Missouri. Body yellowish, immaculate, glabrous: vertex and antennae, excepting'the three basal joints, black: edges linear; the posterior one slightly [460] sinuate: scutel black at base: elytra obsp letely punctured, rounded at tip; each with an oval, black spot at base, and a larger, oblong one extending from the middle to near the tip: pectus and postpectus black. Length less than three-tenths of an inch. The second and third joints of the antennae are subequal, and taken together are hardly longer than the fourth, as in the genus Adimonia of Schrank. [A species of Phyllobrotica, previously described by Olivier as G. 4-maculata, a name already employed; subsequently by Kirby as G. Olivieri.-LEc.] 10. G. LONGICORNIS.-~Green, oblong; thorax with two inmpressed spots; elytra with a black fillet and suture. Inhabits Arkansa. Body pale greenish: eyes blackish: antennae as long as the body; second and third joints conjointed, shorter than the fourth: thorax subquadrate; two dilated, oval, impressed spots placed 1824.] 224 ACADEMY OF NATURAL SCIENCES rather behind the middle: elytra irregularly punctured; three or four obsolete, elevated lines, of which the exterior one is largest, and colored by a brown fillet which does not attain the tip: a brown common sutural line. Var. a. Destitute of the fillet and sutural line. Length less than one-fifth of an inch. I obtained specimens near the Rocky Mountains. The length of the antennae in some specimens would authorize the placing of it in the genus Luperus, whilst the abbreviation of the third and fourth joints resembles those of the genus Adimonia [461] of Schrank. This insect varies in being more robust, with the antennae shorter than the body, and the elytra, at first view, are entirely olive-green; but on inspection, vestiges of the fillet and sutural line sometimes are visible near the base.'It is very similar to Criaceris vittata of Fab. [Belongs to Phyllobrotica.-LEc.] 11. G. ATRIPENNIS.-Black; thorax rufous, with two impressed spots; venter pale yellowish-rufous. Inhabits Missouri. Black, impunctured: head, an indented, frontal spot, and a carinate line between the antennae: thorax pale rufous; two dilated, indented spots: elytra irregularly and confluently punctured; an elevated line from the humerus, parallel with the edge: pectus and venter pale rufous. Length nearly one-fifth of an inch. The second and third joints of the antennas are abbreviated and equal, as in the preceding species. [A species of Phyllobrotica, unknown to me, but closely allied to G. (Adimonia) cristata Harris, Trans. Hartford Nat. Hist. Soc., 90, which differs chiefly by the thorax having a wide black vitta, and by the body being black.-LEc.] 12. G. ATRIVENTRIS.-Pale rufous; antennae, elytra, and abdomen, black. Inhabits Missouri. Body pale rufous: eyes black: antenna ten-jointed, black: thorax with a dilated, black margin; interrupted before the scutel: scutel pale rufous: elytra black, glabrous, immaculate: wings black: feet, line above the femora, tibia and tarsi black: abdomen deep black. [Vol. III. LONG'S SECOND EXPEDITION. 225 thorax punctured; anterior margin, a spot each side near the head, a longitudinal, abbreviated, central line, yellow; scutel with a spot on the disk, and another transverse one beneath its tip, yellow; wings immaculate, nervures blackish; pectus with a yellowish spot over the intermediate and another over the posterior feet; coxae, first joint with a dilated yellow line; posterior feet elongated; tergum [334] polished; first segment with a rather large yellow spot on each side, angulated before; second, third, fourth, and fifth, with each a yellow band, slightly interrupted in the middle, and at its termination on each side dilated into a spot; sixth segment dull ochreous; tail piceous. Length nearly two-fifths of an inch. This insect has considerable resemblance to the macuaria Fabr., but the longitudinal thoracic line, scutellar spot, the form and number of the bands of the tergum, &c., sufficiently disguish it. It is more especially found in Missouri. 2. C. FERRUGINEA.-Ferruginous; wings violet; pleura and metathorax black. Inhabits United States. S Antennae beyond the third joint, gradually shaded into fuscous; mandibles, the two teeth black; thorax, middle segment with a black anterior margin; posterior segment and scutel, black on each side; wings decidedly violaceous; posterior coxas at base black; tergum, first segment at base and tip, and second segment at tip, black. Length less than three-fifths of an inch. 3. C. BIPUNCTATA.-Black; wings dark violaceous; posterior thighs bright rufous in the middle; a small yellow dot each side at the tip of the metathorax. Inhabits United States. % Hypostoma, labrum, anterior orbits, and line on the basal joint of the antennas before, yellow; mandibles piceous; palpi pale; collar yellow on the posterior margin, and with the thorax and scutel with somewhat distant punctures; wings violaceous; posterior thighs, excepting at base and tip bright rufous. Length from one-half to three-fourths of an inch. $ Hypostoma and labrum black, the anterior orbits [335] only yellow; collar destitute of the yellow margin behind. Smaller than the female. 15 .226 LONG'S SECOND EXPEDITION. This species may readily be distinguished by the two small bright yellow dots at tip each side of the metathorax, and the bright color of the posterior thighs. It varies considerably in size. BEMBEX Fabr., Panz. B. MONODONTA.-Black; tergum with dilated, greenish-yellow bands. Inhabits Pennsylvania. Front and vertex with cinereous hair; labrum with a greenish, oblong, margined spot each side; near the base; thorax hardly hairy, anterior edge terminating in a spot on the pleura; an oblique, abbreviated line above the origin of the wings, terminating in a comma-formed spot behind, greenish-yellow; metathorax, a transverse, rectilinear line at base, and an arcuated one at base, slightly interrupted in the middle, greenish-yellow; thighs, at tip, tibiae and base of the tarsi, pale yellowish; tips of the latter dusky; a dilated black line near the tip of the anterior tibiae; wings hyaline; tergum with six yellow and green bands, which occupy more than two-thirds of the surface; first band bilobate before, yellow, with a broad green posterior margin; remaining bands somewhat dentated before; the second and third bands yellow, with a green central dash; fourth and fifth bands yellow, their anterior margins green; terminal band entirely yellow; venter entirely black; a single elevation on the second segment. Length S half an inch. In the collection of Mr. William W. Wood. [336] MONEDULA Latr. 1. M. 4-FASCIATA.-Black, obscurely iridescent; tergum with four bands, interrupted and narrowed in the middle. Inhabits Pennsylvania. Antenna with the basal joint beneath yellow; orbits anteriorly, hypostoma and labrum, yellow; the latter margined each side with piceous, and the hypostoma has a more or less dilated black spot above; mandibles blackish-piceous; thorax with a capillary line before; wings hyaline, slightly fuliginous, nervures fuscous; metathorax at tip each side compressed and yellow; pleura with a whitish spot over the anterior feet, and from one to three yel LONG'S SECOND EXPEDITION. 227 lowish approximate spots above the middle; feet pale yellowish; thighs black on the basal two-thirds, those of the anterior feet black only on the exterior side; tergum with four yellow bands, dilated on the sides, and gradually narrowing to the middle of the back, where they are slightly interrupted, the terminal one widely interrupted; two terminal segments with large punctures each side and at base; venter with three small yellow spots each side near the middle;' with an obsolete spot each side on the two segments beyond the bands, and the anus is three-spined, of which the lateral ones are curved, and V with an obsolete, yellowish line before the wing on each side. Length % three-fifths, 9 nearly seven-tenths of an inch. This species is in the collection of Mr. William W. Wood. The hypostoma of the male specimen is occupied by the black basal spot, excepting on its anterior margin. The bands of the abdomen in this species are not at all dentated. 2. M. VENTRALIS.-Black, obscurely iridescent; tergum [337] with about five yellow bands, interrupted, but not narrowed in the middle. Inhabits Pennsylvania. % Orbits anteriorly obsoletely tinged with dull yellowish; antenna, first joint beneath yellow; hypostoma, labrum, and mandibles black, palpi whitish; thorax punctured; a line on the anterior edge, with a spot at tip on the pleural and a small, longitudinal, oval spot each side above the inferior wings, yellow; scutel with a transverse yellow line; metathorax at tip each side compressed and yellow; wings hyaline, very slightly tinged with fuliginous; nervures fuscous; feet yellowish; thighs black from the base to near the knee, first pair on the anterior side only the basal half black; tergum with about five or six yellow bands, which are rather wider on the back and interrupted by a very narrow space; excepting the first band which is slightly undulated, slightly narrowed on the back, and interrupted by a wider space; the ultimate bands narrowed each. side and interrupted near a spot on the lateral margin; terminal segment with large, dense punctures, as numerous on the disk as upon the sides; anus threespined, of which the lateral ones are curved; venter each side with a triangular spot at the tip of each of the dorsal bands excepting the first. 228 LONG'S SECOND EXPEDITION. Length nearly half an inch. I have not seen the female, the male is in the collection of Mr. William W. Wood. ASTATA Latr. A. UNICOLOR.- Deep black, immaculate; wings dusky at tip. Inhabits North-west Territory and Missouri. [338] 9 Head with rather long, silvery hair; thorax and scutel with remote punctures, the former with a very slight appearance of longitudinal lines before, the latter with a longitudinal impressed line at tip, metathorax with dense, dilated punctures; wings hyaline, with a broad, dusky tip, nervures black; tarsi piceous: abdomen polished, immaculate. Length less than half an inch. OXYBELUS Latr. O. 4-NOTATUS.-Black; tergum with a slight, whitish, abbreviated line on each side of the first and second segments. Inhabits Pennsylvania. Antenna towards the tip beneath, stethidium, immaculate; wings hyaline, nervures brown; metathorax and scutel each with three raised lines, two superior spines of the former whitish at tip, decurved; inferior spine larger, black, tarsi testaceous at tip; anterior tibiae testaceous on the inner side; tergum polished; lateral abbreviated line of the first segment much more distinct than that of the second. Length nearly one-fourth of an inch. GORYTES Latr. G. BIPUNCTATUS.-Black, collar and scutel with a white line; tergum with two white spots. Inhabits Pennsylvania. Hypostoma silvery white; basal joint of the antenna before, exterior base of the mandibles and palpi, white; line of the collar capillary of the scutel broader, abbreviated; [ 339] wings hyaline, nervures fuscous; pleura with a small dot before the wing; feet black; tibia sericeous, white on the exterior base; tarsi white; tergum, second segment at tip each side with a small white spot. Length three-tenths of an inch. This species corresponds in its generic characters precisely with LONG'S SECOND EXPEDITION. 229 Arpactus Jurine, and of course possesses those oblique parallel lines of the metathorax which Jurine mentions as distinguishing this genus. PEMPHREDON Latr. Fabr. 1. P. CONCOLOR.-Black, minutely punctured; metathorax with dilated punctures; abdomen glabrous. Inhabits North-west Territory. Head with minute pubescence, more distinct on the front; mandibles obtusely bifid at tip, immediately above which are two obtuse teeth; punctures minute, sparse on the vertex; thorax with a slightly impressed, longitudinal line, from which proceed numerous, minute wrinkles, curving outwards and backwards, punctures larger than those of the head; wings slightly fuliginous, nervures blackish; metathorax with dilated punctures, or slightly impressed cavities; feet somewhat sericeous; abdomen polished, impunctured; petiole moderate. Length of the body nearly seven-twentieths of an inch. This is allied to P. unicolor Fabr. 2. P. INORNATUS.-Black, immaculate, punctured; abdomen impunctured, polished; petiole nearly one-third the length of the abdomen. Inhabits Pennsylvania. Wings hyaline, very slightly tinged with dusky, the [340] first submarginal cellule receives the two recurrent nervures; nervures dark fuscous: stigma rather large. Length less than three-tenths of an inch. STIGMUS Jur. Latr. S. FRATERNUS.-Black, antenna and feet yellowish. Inhabits Pennsylvania. Body deep black, polished, not obviously punctured; mandibles and palpi whitish; wings hyaline, nervures pale brown, stigma piceous-black, whitish at base; origin of the wings yellowish; pleura with a white spot rather before the origin of the wings; feet immaculate; venter whitish at tip. Length rather more than three-twentieths of an inch. This species is in the collection of Mr. William W. Wood. It is closely allied to the ater of authors, the petiole of the abdomen, however, is proportionally longer. 230 LONG' S SECOND EXPEDITION. CRABRO Fabr. Latr. 1. C. TIBIALIS.-Black, polished; thoracic line, scutel, knees, and tibiae, yellow; abdomen with piceous incisures. Inhabits Pennsylvania. 9 Head with a slightly impressed frontal line, extending to the stemmata; antennae, basal joint yellow; hypostoma silvery, brilliant; thorax with a transverse, yellow line on the collar, not extending to the postpectus; scutel yellow; wings hyaline; nervures fuscous, those of the disk pale at base; metathorax slightly carinated each side with a longitudinal, impressed line, which is a little dilated beyond the middle, and a slight transverse line on the middle; [341] pleura immaculate; tarsi slightly tinged with testaceous; posterior pair entirely black; abdomen rather long, blackish-piceous; ipcisures edged behind with pale-piceous, the second segment above margined behind with pale-piceous. Length three-tenths of an inch. A small species in the collection of MIr. William W. Wood. 2. C. SCUTELLATUS.-Black, polished; thoracic line, scutel, knees, and tibiae, yellow; abdomen totally black. Inhabits Pennsylvania. Length 9 one-fifth of an inch. This species closely resembles the preceding, but is smaller; the abdomen proportionally shorter, and entirely black; the yellow line of the collar extends to a yellow spot at the commencement of the pleura; the transverse line of the metathorax is much more profoundly indented, and a transverse punctured line is far more obvious than in the preceding; the intermediate and posterior tibia have a black spot near the tip. 3. C. 6-MACULATus.-Black; tergum with three yellow spots on each side. Inhabits Pennsylvania. 2 Antennse, basal joint yellow; mandibles at base yellow; hypostoma silvery, brilliant; thorax with a yellow band on the collar, interrupted in the middle; two parallel, abbreviated, transverse, equal, yellow lines behind; wings dusky; pleura with two, equal, rounded, yellow spots, one of which is beneath the superior wing and the other before it; thighs black, knees yellowish; tibia yellow with a black or piceous spot on the inner side; tarsi LONG'S SECOND EXPEDITION. 231 tinged with rufous; tergum on the second, fourth and fifth segments with a transversely oval spot. [342] Length three-tenths of an inch. 4. C. TRIFASCIATUS.-Black: scutel, two spots on the collar, base of the antennae and lateral spots of the tergum, yellow. Inhabits North-west Territory. Body with numerous, short hairs; hypostoma silvery; first joint of the antennae and middle of the mandibles, yellow; thorax punctured; collar with two yellow spots; scutel yellow; metathorax with dilated, confluent punctures, and an impressed longitudinal line; wings fuliginous, nervures brown; pectus with a yellow spot before the wings; feet yellow, thighs, and a line on the inner side of the tibia, black; tarsi dusky at tip; tergum polished, impunctured; a yellow band on the middle of the second segment interrupted above: a short yellow line each side of the third segment; a yellow band on the fourth segment, slightly interrupted above; a yellow band on the fifth segment, not interrupted but only slightly emarginate above; venter immaculate. Length two-fifths of an inch nearly. PHILANTHUS Fabr. Latr. 1. P. PUNCTATUs.-Black; head and thorax with yellow spots; tergum with large punctures and four yellow bands. Inhabits Pennsylvania. % Eyes very slightly emarginate; a longitudinal line each side of the hypostoma, a triangular spot on the middle of the anterior margin, another on the front, a small rounded spot on the basal joint of the antennae before, a small dot each side on the vertex, and another behind each eye, yellowish-rufous; thorax uneven, with large profound punctures: a line on the collar, another on the scutel, before [343] which is a smaller one, and wing-scale, yellow; wings fuliginous; pleura with a double yellow spot beneath the anterior wing: feet honey-yellow, thighs black at base, tibiae bright yellow before; tergum rough with large profound punctures; first segment rounded, immaculate; second with a broad, yellow, slightly arcuated line, touching the anterior edge and curving towards the posterior angles; third, fourth and fifth segments, each with a narrow, dull yellow band on the posterior margin; venter immaculate. 232 LONG'S SECOND EXPEDITION. Length less than two-fifths of an inch. 2. P. POLITUS. [Ante, p. 113.] XCERCERIS Latr. C. DESERTA.-Black; hypostoma, feet, and bands of the tergum, yellow. [344] Inhabits North-west Territory, Missouri, and Pennsylvania. % Hypostoma entirely yellow; antennae yellow before, dark brown behind; collar with two transverse yellow spots; scutel with a transverse line, yellow; wings hyaline, brownish on the costal margin near the tip; feet yellow; anterior thighs black on the posterior middle, intermediate thighs on the posterior base and posterior thighs at tip, black; tergum, first joint rounded with a spot each side; second and third segments with each a band on the posterior margins slightly and widely emarginate before, remaining segments with each a narrower band on their posterior margins, yellow; venter, three or four first segments with each a lateral, triangular, yellow spot. Length more than two-fifths of an inch. Var. a. metathorax with a yellow, oblique line each side behind; first joint of the tergum immaculate. Var. A. metathorax and first joint of the tergum immaculate; bands of the tergum excepting the first, very narrow, linear; ventral spots obsolete; feet with a larger proportion of the black color. Var.?. a small yellow spot each side before the tip of the scutellar line. EUM1ENES Latr. 1. E. FRATERNA.-Black; hypostoma, anterior thoracic margin, scutellar line, posterior submargins of the segments of the tergum, and two spots on the second segment, yellow. Inhabits United States. Body polished, punctured; hypostoma emarginate, and with a line between the antenna, pale yellow; antenna, [345] basal joint with a whitish line before; thorax with the anterior margin somewhat contracted in the middle, yellow; scutel yellow; wings fuliginous; thighs black, yellowish at the knee joint; tibias whitish, a black line near the tip; tarsi pale yellowish, dusky towards the tip; tergum, first segment with a subbidentate yel LONG'S SECOND EXPEDITION. 233 low band on the posterior margin; second segment with a yellow band on the posterior submargin somewhat sinuated before, and an oval, oblique, yellow spot on the middle of each side; third and fourth segments with each an abbreviated, whitish, submarginal line behind; venter with a spot at tip of the first segment, and a submarginal band on the second behind. Length from nine-twentieths to more than three-fifths of an inch. Var. a. Spot on the second segment of the tergum elliptical. Var. g. A pale yellowish spot on each side of the scutel, and nearly in a line with it. This species is very closely allied to the coarctatc Fabr. of Europe, but the whole of the hypostoma is yellow, the line between the antennae being only a process from it; there is no yellow point beneath the wings; none on the first segment of the tergum; and the bands on the thild and fourth segments are always much abbreviated, never extending to the sides or upon the venter. Like the coarctata, this species constructs for each of its eggs a hollow globe of earth, with a short ascending neck, the rim of which is sometimes widely outspread horizontally; it is often built around a twig of a bush for support, as represented by Degeer, (Hist. abr6gee des Insectes, vol. 2, pl. 16, fig. e.) sometimes the nest occurs simply attached to the superior page of a leaf. The egg deposited in this globe in June, is inclosed with a sufficient supply of food, [346] consisting of the larvae of some of the nocturnal Lepidoptera. Early in July or towards the middle of that month, the perfect insect makes its way through the side of its dwelling. The form of the first segment of the abdomen of our species, is similar to that of Schaeffer's representation of his Vespa nona, (Icon. vol. 1, pl. 53, fig. 10,) which is proportionally much smaller than in Degeer's figure of the coarctata. This species is found as well in Pennsylvania as in the North-west Territory snd Missouri. 2. E. VERTICALIS.-Black; hypostoma above, anterior thoracic margin, scutellar line, posterior submargins of the abdominal segments, and spot each side on the first and second segments, yellow; metathorax with a vertical spot each side at tip. Inhabits Pennsylvania. 234 LONG S SECOND EXPEDITION. This species differs from the preceding in the following characters; anterior portion of the hypostoma with a deeply trilobated black spot; superior wing-scale rufous; a small yellowish spot beneath the superior wing, and a yellowish line over the insertion of the inferior wing; a vertical, oblong, yellow spot each side near the inferior tip of the metathorax; a small spot each side on the first segment of the tergum, and the yellow margin is reflected backwards on the lateral edge for a short distance; the spot of the second segment is elongated, and the bands of the third and fourth segments pass round the venter. Size about equal to the preceding, and seems to be allied to the ponpiformis Fabr. 3. E. ANORMIS.-Black; first abdominal segment very short and dilated. Inhabits St. Peter's river and Arkansa. $ Antennae with the scapus yellow before; hypostoma attenuated, truncate at tip, with large, longitudinal punctures, and at base a transverse, yellow, arcuated line, a [ 347] small spot on the front, another in each emargination of the eyes, and a transverse one behind the eyes on each side, yellow; thorax densely punctured, a yellow spot on each side of the collar; wing-scale yellow, with a pale-brown spot; wings fuliginous; scutel with a transverse yellow line; metathorax on each lateral margin with an oblique yellow line; pleura, a yellow spot under the superior wing; feet yellow; thighs, except at the knees, and spot on the anterior tibiae, black; tergum, segments yellow on their posterior margins, first and second segments with each a yellow, lateral spot, the former segment short, dilated, not pedunculiform; venter immaculate. Length more than seven-twentieths of an inch. Excepting in the character drawn from the first segment of the abdomen, this insect has a general similarity to the preceding species, and the form of the anterior portion of the hypostoma and the trophi, prove that this species is properly placed in this genus. PTEROCHILUS Klug. P. 5-FASCIATUS.-Segments of the tergum yellow on their posterior margins; first and second segments with a lateral, ferruginous spot on each. LONG'S SECOND EXPEDITION. 235 Inhabits North-west Territory and Missouri. 9 Head black; dilated posterior orbits, and anterior orbits to the emargination of the eyes, ferruginous; hypostoma, scapus of the antennae and mandibles, ferruginous; tip of the former acutely emarginate in the middle; flagellum black-brown; labial palpi testaceous, very long, ciliate with long hairs, three-jointed; terminal joint much compressed, flat, obtuse at tip; stethidium black; collar and wing-scale ferruginous; scutel with two large yellow [348] spots; metathorax with a transverse, yellow line, and at the base each side a large ferruginous spot; wings a little fuliginous; pleura with a yellow spot beneath the superior wings; feet ferruginous; tergum black, with five broad, bright yellow, somewhat dentated bands, the posterior one abbreviated; first and second segments with each a large ferruginous spot on each side; renter black, ferruginous at base. Length more than seven-tenths of an inch. ODYNERUS Latr. O. ANNULATUS.-Segments of the tergum yellow on their posterior margins; first and second segments with a lateral, ferruginous spot on each. Inhabits North-west Territory and Missouri. % Head black; hypostoma yellowish, truncate at tip, and with a small denticle each side; a large triangular spot on the front, front of the scapus of the antennae, mandibles, and anterior orbits to the bottom of the emargination of the eye, yellowish; posterior orbit above with a ferruginous spot; antennae, terminal joint very much compressed, ferruginous, and reflected outward and backward on the two preceding joints; stethidium black; collar and wing scale ferruginous; scutel with two yellow spots; metathorax with a transverse, yellow line, and at the base each side a large ferruginous spot; wings a little fuliginous; pleura with a yellow or ferruginous spot beneath the superior wings; feet ferruginous; tergum black with six broad, bright yellow bands; first segment ferruginous excepting the posterior margin, with a black spot in the middle; second segment with a large ferruginous spot each side, in which is a smaller yellow spot; venter black, ferruginous [349] at base; posterior segments with yellow posterior margins. Length more than half an inch. 236 LONG'S SECOND EXPEDITION. y First and second joints of the antennae ferruginous; tergum with five yellow bands; first and second segments ferruginous, with yellow posterior margins, the latter segment with a large yellow spot each side, and more or less of black in the middle. Size very little larger than the male. The very striking similarity in markings between this species and the Pterochilus 5-fasciatus, led me at first to consider it the male of that species, but having several specimens, on submitting them to a more accurate inspection, I discovered that one of the number is a female nearly corresponding in size with the others, and agreeing with them in the form of the termination of the hypostoma and in the ventral bands, which specifically distinguish this species from that just mentioned. NOMIA Latr. N.? HETEROPODA. —Hairy, blackish-fuscous; wings blackish at tip; posterior tibia much dilated, triangular; terminal joint of the antennas compressed, dilated. Inhabits North-west Territory, Arkansa, and Maryland. $ Body blackish-fuscous, with cinereous hair; antennae hardly as long as the thorax, terminal joint compressed and dilated on tht inner side, subsecuriform; mandibles unarmed; wings slightly tinged with dirty yellowish, with a broad, blackish, terminal border, nervures reddish-brown; intermediate feet with the thighs very much dilated, compressed, triangular, first joint of the tarsus dilated, and compressed before; posterior feet with the thighs [350] dilated, particularly towards the tip; tibia remarkably dilated, forming a rectangular triangle, much compressed, excepting at the inner tip, and undulated on the inner side, first joint of the tarsus elongated, much longer than the tibia, not dilated, densely ciliated on the inner side with equal, fulvous hair; venter sparsely hairy; fourth segment divided by a longitudinal suture in the middle, at the posterior angles prominent, acute; fifth segment short, longitudinally carinated in the middle, and with a prominent tubercle each side behind; sixth segment longitudinally divided in the middle by a suture. Length seven-tenths of an inch. This singular insect does not perfectly correspond in character with the genus under which I have placed it, and it disagrees still more with the neighboring genera as defined in the books. LONG'S SECOND EXPEDITION. 237 PANURGUS Panz. P. 8-MACULATUs-Black; tergum with four, transverse, yellow spots on each side. Inhabits United States., Hypostoma, labrum, mandibles at base, inferior part of the anterior orbits, yellow; antennae brown, yellowish beneath and bright yellow on the anterior side of the basal joint; thorax slightly tinged with brassy, a small yellow point each side on the collar; pleura with a yellow spot before the wings; wings slightly dusky, pale at base, nervures fuscous; feet yellow, middle of the thighs and posterior middle of the tibiae blackish; posterior feet blackish-brown, knees and base of the thighs yellow; tergum dark brown, four first segments each with a transverse, yellow spot. [351] Length more than one-fifth of an inch. y Hypostoma with three, longitudinal, yellow spots, of which the intermediate one is longest; orbits on the anterior inferior portion with a triangular yellow spot; antennae, basal joint entirely black: spots of the tergum less elongated than those of the male and the feet have more of the black color. Length rather over one-fourth of an inch. MEGACHILE Latr. 1. M. INTERRUPTA.-Thorax surrounded by ferruginous; tergum five banded. Inhabits Missouri. % Body punctured, above glabrous; head black; antennae first joint at base and third and fourth joints dull rufous; hypostoma, broad frontal orbits, and mandibles at base, yellow; vertex with a ferruginous band, interrupted in the middle and extending down the cheeks; labrum rufous, a small black spot at base; thorax black, surrounded by a ferruginous margin, which is interrupted before, and passes upon the posterior margin of the scutel; wings fuliginous; pleura with cinereous hair beneath the wings; feet rufous, tarsi with yellow hair; tergum convex, black, with dilated, obscure, rufous, scarcely definite bands, five in number, on each of which, excepting the basal one, is another yellow band emarginate each side behind, and the three posterior ones are interrupted in the middle; anus trilobated; lobes yel 238 LONG'S SECOND EXPEDITION. low, intermediate one small; posterior coxae each with a robust yellow spine; venter with transverse bands of long, dense, yellow hair. Length nearly two-fifths of an inch. 9 The black color of the front extends down upon the [352] middle of the hypostoma nearly to its tip; the rufous color on the basal joints of the antennae is obsolete; labrum black on the disk; mandibles black, excepting a small, rufous spot at base; the three last bands of the tergum are destitute of any rufous color about them; venter densely covered with hair: mandibles, as in the male, three-toothed; posterior coxae unarmed. Length about the same as the male, but more robust. 2. M. EMARGINATA.-Black; a band on each abdominal segment, slightly interrupted in the middle, and emarginated each side before. Inhabits Missouri. 9 Body punctured, above glabrous; head with a small yellow dot each side of the vertex; mandibles five-toothed; thorax with a small, whitish spot before the wings; wing-scale whitish, with a brown spot; a whitish spot on the posterior angles, forming a curve with two whitish spots on the scutel; wings hyaline, nervures fuscous; feet black, a dilated whitish line on the exterior side of the tibia, tarsi with dull yellowish hair; tergum convex, a whitish band on each segment, very slightly interrupted in the middle, and, excepting the first one, deeply emarginated each side before, the terminal segment with two rounded spots instead of a band. Length less than seven-twentieths of an inch. 3. 3I. JUGATORIA.-Black; a band on each abdominal segment, interrupted in the middle and entire each side. Inhabits Missouri. 9 Body punctured, above nearly glabrous; head with a yellow line on the superior part of the cheeks; hypostoma with a dilated, yellow line, which extends upon the anterior orbits nearly to their summit; thorax with a widely interrupted line before, extending round above the wings, [ 353 ] and two oblique lines upon the scutel, yellow; wings fuliginous; feet blackish, with dull rufous joints, and tarsal hair; anterior feet before dull rufous; tergum, bands yellow, not at all emarginated each side, LONG'S SECOND EXPEDITION. 239 the basal band widely interrupted, second band less widely interrupted, the penultimate one hardly interrupted, the ultimate one entire. Length about seven-twentieths of an inch. That these three species are congeneric is evident, but they do not correspond in all respects with the genus Megach'ile as defined by entomologists. The trophi agree very well, and the form of the nails of the feet in the two sexes are also similar, but the tergum is convex, as in Osmia, and the abdomen curves very much downwards towards the tip, as in Stelis, from which latter genus they differ by having a hairy venter. CAELIOXYS Latr. C. 8-DENTATA.-Black; abdomen with five white bands, tip eight-toothed. Inhabits United States. % Front and hypostoma with dense, long, dull yellowish hair; thorax with a dentated band before, interrupted in the middle, a spot at the base of the wings and a transverse line at base of the scutel, white; wings a little dusky on the apical margin; feet rufous; tergum with five white bands, of which the two or three terminal ones are double; segments each with a transverse indented line; tip with eight teeth, of which two are on each side, and four at the extremity placed two above and two beneath; venter with a white line on the posterior margin of each segment, the basal and terminal ones obsolete. [354] Length two-fifths of an inch. Var. a. Spots and lines of the thorax obsolete; feet excepting the tarsi, black. This is an inhabitant of various parts of the United States, from the North-west Territory to Arkansa, and is common in Pennsylvania. NOMADA Fabr. N. BISIGNATA.-Terminal half of the wings with a dusky margin; abdomen rufous, with a bright yellow spot each side of the middle. Inhabits United States. 9 Head ferruginous, front with a large, black spot, confluent 240 LONG'S SECOND EXPEDITION. with another transverse one on the vertex; occiput and throat black; antennse blackish, beneath rufous; stethidium black, varied with ferruginous, and like the head rough with dense punctures; thorax ferruginous, with a longitudinal black line; scutel ferruginous; feet rufous; thighs black at base; wings dusky, particularly on the margin of the terminal half; tergum rufous, the segments on their posterior margins, and the basal segment at base also black; second segment with a large, lateral, yellow spot, and a slight appearance of another on each side of the third segment. Length rather more than three-tenths of an inch. This species varies in having the thorax black, with four ferruginous lines. EPEOLUS Latr. 1. E. LUNATUS.-Tergum with two opposite lunules on the first segment, and three bands on the other segments. [3553 Inhabits Missouri and Prairie du Chien. y Body black; front with a whitish spot surrounding the base of each antennae; antennae black-brown, three basal joints and labrum ferruginous; thorax with two abbreviated, whitish, longitudinal lines before the middle, a pale yellowish line on the collar, another over the wings, passing round behind above the scutel, a double line beneath the scutel, and an oblique sagittate spot each side on the metathorax, also pale yellowish; wings a little fuliginous; feet rufous; thighs blackish in the middle; tergum velvet-black; first segment with an angulated lunule on each side, and a subterminal band on each side of the three following segments, of which the first is very slightly interrupted; terminal segment with a slight, oblique, cinereous spot on each side. t Anterior half of the thorax with much of the pale yellowish color; bands of the tergum larger than those of the female and one more in number, feet nearly all blackish. Length half an inch. Smaller than E. 4-fasciatus nobis, but much larger than E. mercatus Fabr. 2. E. SCUTELLARIS.-Thorax surrounded by ferruginous; posterior spines dilated. LONG'S SECOND EXPEDITION. 241 Inhabits Middle States. 9 Body deep black, densely punctured; front with a white spot surrounding the base of each antennae; antennae black-brown, three basal joints and mandibles rufous; thorax with the collar, obsolete line over the wings, dilated posterior teeth and scutel, ferruginous; wings dusky on the terminal margin; feet rufous; tergum black-brown; two distant bands on the first segment, of which the first is obsolete, and the other is interrupted in the middle, second [356] and third segments each with a band on their posterior margins, pale yellow; remaining bands indistinct. Length from three-tenths to nearly seven-twentieths of an inch. Much smaller than the preceding, and about equal in size to E. nercatus Fabr., from which it differs by various characters, and particularly by the much more dilated form of the posterior thoracic teeth. During rainy or windy weather, this insect secures itself to the edge of a leaf or to the small branch of a bush, by its mandibles, retracts the feet to the body, and projects the antennae forwards. ORDER DIPTERA. ANOPHELES Meig. Wied. A. 4-MACULATUS.-~Pale brownish; wings with four fuscous spots. Inhabits North-west Territory. Thorax dull cinereous; two oblique, brown lines confluent behind and reaching the posterior edge; a broad, lateral, brown line also extending the whole length of the thorax; wings hyaline, the nervures hairy, forming two blackish spots near the middle, placed longitudinally; and two others nearer the tip on the bifurcations of the nervures, placed transversely; scutel dull ochreous, dusky in the middle; feet black-brown, incisures at tip of the thighs and of the tibiae, yellowish; tergum whitish, a little varied with dusky. Length? to the tip of the wings more than three-tenths of an inch. [357] Closely allied to the maculipennis Hgg. I have not seen the male. Wiedemann informs me that my Culex punctipennis is a true Anopheles, an observation which I have found to be correct. 16 242 LONG'S SECOND EXPEDITION. I described that insect in the year 1819, before any account of that new genus had reached this country, otherwise I certainly should have adopted it. LASIOPTERA Meigen. L. VENTRALIS.-Body blackish-brown; antenna3 18-jointed, hairy, joints subglobular, rather transverse, and placed close to each other, basal joint whitish; thorax and tergum immaculate feet whitish, exterior side of the tibiae blackish; tarsi blackish, first joint very short; venter whitish in the middle; wings with a narrow, blackish, costal margin, which is gradually narrowed to the tip. Y Length rather more than one-twentieth of an inch. I caught this species in the garden of the University of Pennsylvania. CECIDOMYIA Latr, C. ORNATA.-Carneous; wings spotted. Inhabits Pennsylvania. Body varies in color from a very pale flesh color to a deep red antennae and feet whitish; wings with five or six dusky spots occasioned by the greater density of the hair of the surface in those parts. Length to the tip of the wings nearly one-tenth of an inch. This is most probably the prettiest species of the genus; [358] it occurred on a window in Philadelphia on the 13th of September. PSYCHODA Latr. P. ALTERNATA.-Wings acute at tip, with a small black spot at the tips of the nervures. Inhabits Pennsylvania. Body pale yellowish-white; abdomen dusky; wings ovatelanceolate, acute at tip, cinereous with an obsolete pale band on the middle and base; the alternate nervures of the posterior margin at their tips and the tips of the nervures of the anterior margin with a black spot; spots of the posterior margin more distinct. Length to the tip of the wings more than one-tenth of an inch. LONG'S SECOND EXPEDITION. 243 A very common little insect, even in Philadelphia. It may be readily distinguished from other species by its more acute wings, as well as by the arrangement of the spots and bands, however obsolete, which exist on these organs. LIMNOBIA Meig. L. ARGUS.-Yellowish-white; head black; wings ocellate and marbled with blackish. Inhabits North-west Territory. Antennae moniliform; thorax pale yellow-piceous, whitish near the neck; wings hyaline, with a double series of large, pupilate ocelle, those near the tip confused; ultimate nervure furcate'; poisers fuscous, at tip white; coxe whitish; thighs annulate with black near the tip. Length % 9 more than three-tenths of an inch. [359] To this species the name of ocellata would perhaps be more appropriate than it is to the Linnaean species of that name, inasmuch as in the latter the ocellae are epupilate. It is a very pretty insect, and exhibits much singularity in the arrangement of the nervures of its wings, the penultimate and ultimate nervures being connected by a transverse nervure which arises from the tip of the latter. In other respects the distribution of the nervures are similar to that of the bifasciata Fabr. Wied. [This is identical with the European L. annulata Linn, (L. imperialis Loew; conf. Linn. Ent. 5, tab. 2, fig. 15). — SACKEN.] TIPULA Linn. Meig. T. MACULATIPENNIS.-Cinereous; thighs black at tip, wings dusky with white spots. Inhabits North-west Territory. Antenna yellowish, incisures of the joints dusky; palpi blackish; thorax with two brown, dorsal lines, which are confluent on the anterior margin, attenuated behind, and abbreviated behind the middle; a lateral line slightly interrupted in its middle, and hardly reaching the anterior or posterior margins; scutel dull honey-yellow, with a black line; wings dusky, with a black carpal spot margined with white, three or four white spots along the central nervure, and about as many near the termination of the ultimate nervure; poisers white, dusky at tip; abdomen 244 LONG'S SECOND EXPEDITION. blackish; incisures edged with whitish; thighs with a very obvious blackish tip. Length to tip of the wing? seven-tenths of an inch. PTYCHOPTERA Meig. P. 4-FASCIATA.-Wings hyaline, with four brown bands. Inhabits Pennsylvania. [365] Head and thorax blackish-brown; antenne, palpi, mouth, and hypostoma, except near the base of the antenna, whitish; wings with four brown, subequidistant bands, of which the third reaches the inner margin and the others are abbreviated; pleura, pectus, and feet, yellowish white; the incisures of the latter dusky. Length to the tip of the wings nearly half an inch. This species is infested by a parasite of the genus Ocypete. It occurred in June. TRICHOCERA Meig. T. SCUTELLATA.-Dark fuscous; scutel whitish. Inhabits North-west Territory. Palpi blackish; thorax slightly tinged with livid; anterior angles and neck segments dull yellowish-piceous; scutel dull whitish; wings immaculate, whitish at base; poisers white, with a fuscous capitulum; coxse, and thighs at base, dull yellowish. $ O Length of the body three-twentieths of an inch. Taken in September at the Falls of Kakabikka, beyond Lake Superior. The posterior margin only of the scutel is dull yellowish-white in the male. This species seems to be closely allied to T. parva Meig. PLATYURA Meig. CEROPLATUS Bosc, Fabr. P. FASCIPENNIS.-Thorax yellowish; wings with a blackish subterminal band. Inhabits North-west Territory. Head yellowish; disk of the vertex black; thorax immaculate; wings hyaline, with a blackish band near the [361] tip, hardly reaching the inner edge, and margined with an obsoletely whiter color than the other parts of the wing; poisers color of the thorax; coxse and thighs whitish; tergum blackish-testace LONG'S SECOND EXPEDITION. 245 ous; venter blackish, segments dull yellowish on their posterior and lateral margins; abdomen slender at base, gradually dilating behind. 9 Length rather more than one-fifth of an inch. The wing nervures are arranged as in P. baumhaueri Meig. It is probably closely allied to the carbonaria of Bose, which, however, is described to be altogether of the same form as the tipuloi(les Bose, to have a black thorax and obscure feet; whereas ours is a much more slender insect than the tipuloides as represented by Coquebert. SCIOPHILA Hgg. 1. S. PALLIPES.-Brownish-black, with gray short hairs; antennae and feet whitish. Inhabits North-west Territory. Antennae (at least the two basal joints) yellowish-white; thorax with numerous scattered, short, gray hairs, which are fewer in number and more prominent behind; wings dusky; poisers elongated, yellow-white, at base dusky; feet yellow-white; abdomen with numerous prostrate, short, gray hairs. % Length to tip of the wings nearly one-fifth of an inch. The nervures of the wings correspond with those of S. hirta Hgg. 2. S. LITTORALIS.-Pale yellowish; thorax trilineate; abdomen fasciate with fuscous; feet dusky at tip. Inhabits North-west Territory. Vertex and a line extending down between the antenna upon the hypostoma, blackish; antennae dusky, two basal [362] joints yellowish; thorax with a double, brown, middle line, attenuated and abbreviated behind, and a brown approximate line on each side abbreviated before; a small fascicle of hairs beneath each wing, and a dusky spot over the insertion of each foot; wings immaculate; poisers yellowish-white; abdomen slender at base, gradually dilating towards the tip, dull-yellowish, hairy; incisures and tip dusky; feet dull-yellowish, towards their tips dusky. Length of the body three-twentieths of an inch. I obtained this species on the rocky coast of Lake Superior, in a thicket of small bushes. The nervures of the wings corres 246 LONG'S SECOND EXPEDITION. pond with those of Asindulumo punctatum Latr., excepting that the second nervure is not at all connected with the first nervure, but curves downward at tip and enters the intermediate cellule before the middle, and the ultimate and penultimate abbreviated nervures are distinct; it is a much smaller species than thefasciata nob., the nervures of which agree better with the preceding species, but its connecting nervure from the second nervure enters the intermediate cellule at the middle. 3. S. HIRTICOLLIS.-Yellowish-white; thorax hairy; tergum black, with pale yellowish bands. Inhabits North-west Territory. Head black; hypostoma, mouth and trophi whitish; antenna black-brown, the four basal joints yellow, with a dark brown spot above on the third and fourth; thorax with rather numerous, somewhat long, black hairs; three dilated, brownish-livid lines, the intermediate one abbreviated and attenuated behind, and the lateral ones attenuated before; wings a little dusky, the intermediate cellule appearing to the eye like a small, black spot; poisers whitish; pleura with a brownish-livid spot over the intermediate and posterior feet; feet dusky towards the tip, the coxae [363] with strong, black hairs on the exterior side and tip; tergum black, with black, rather long hairs; segments with broad, yellowish hind margins; tip black. Length of the body three-twentieths of an inch. The wing nervures resemble those of S. littoralis nob., but the abbreviated nervures are very strongly marked; the second nervure is connected with the first, and by a transverse nervure with the intermediate cellule opposite to the middle; the cellule is also connected with the central, furcate nervure, by a nervure as perfectly transverse as that of S. vitripennis Meig. 4. S. BIFASCIATA.-Dark yellowish; wings bifasciate. Inhabits North-west Territory. Head black; antenna fuscous; hypostoma yellow, near the antennae blackish; palpi whitish at base, dusky towards the tip; thorax honey-yellow; two oblique, black lines confluent behind, and not reaching the posterior margin; a black line above each wing, joining on the posterior margin and meeting the oblique lines at the anterior angles; wings hyaline with two blackish LONG'S SECOND EXPEDITION. 247 bands more obvious at the costal margin, one of which is near the middle, widely interrupted on the disk, and the other near the tip; metathorax black; feet white-yellow at base, dusky towards the tip. Length to tip of the wings nearly two-fifths of an inch. A large and handsome species. The wing nervures agree with those of Asindulum punctatum Latr., excepting that the second nervure is continued a short distance beyond its transverse nervure, which latter enters the intermediate cellule at the basal angle. 5. S. OBLIQUA.-Pale yellowish; thorax four lined; tergum fasciate. Inhabits North-west Territory. [364] Head black; hypostoma and base of the antennae yellow; thorax with two oblique, fuscous lines confluent at the middle of the base; and a dilated fuscous line each side, much abbreviated before and hardly reaching the basal edge; wings slightly tinged with dusky, immaculate; poisers white; feet white, dusky towards the tip; tergum, segments with blackish posterior margins; last segments entirely blackish; anal segment yellow. Length % nearly one-fifth of an inch. The wing nervures are arranged altogether like those of Asindulum punctatum Latr. Closely allied to S. fasciata nobis, but may be distinguished by the narrow, oblique lines of the thoracic disk. LEIA Meig. L. VENTRALIS.-Deep black, polished; wings fasciate near the tip, feet yellowish. Inhabits North-west Territory. Head a little hairy; palpi and three basal joints of the antennse yellowish; remaining joints of the latter fuscous; thorax with sparse hairs; a whitish humeral spot; wings hyaline with a dusky band near the tip, which does not reach the thinner margin, and a dusky tinge or line between the ultimate and penultimate nervures; poisers with a fuscous capitulum and yellowish stipes; feet yellowish-white; tarsi dusky; tergum hairy: venter pale yellowish. 248 LONG'S SECOND EXPEDITION. % Length of the body nearly three-twentieths of an inch, to tip of the wings more than one-fifth of an inch. This species is closely allied to the bimaculata Meig., with which it also corresponds in the position of the stemmata and the arrangement of the wing nervures, even to the dislocation of the superior branch of the inferior furcate nervure. [365] MYCETOPHILA Meig. 1. M. SERICEA.-Head and thorax sericeous; the latter dusky, margined with yellowish. Inhabits North-west Territory. Head blackish, with a yellowish sericeous gloss; antennas fuscous, two basal joints and palpi yellowish; thorax sericeous, blackish on the disk, dull yellowish each side and on the anterior edge; wings immaculate, nervures fuscous; poisers and feet yellowish-white; tarsi and spines fuscous, the latter half the length of the first tarsal joint; coxae yellowish-white, with a few short, black, rigid hairs on the exterior sides and tip, particularly the anterior pair; abdomen compressed, dusky above; sides dull yellowish on the tips of the segments. % 9 Length to tip of the abdomen one-fifth of an inch. The wing nervures are arranged as in M. fasciata Meig., excepting that there are three abbreviated nervures, as in M. lateralis of the same author. 2. M. MACULIPENNIS.-Yellowish; thorax trilineate; wings three-spotted. Inhabits North-west Territory. Body pale yellowish; vertex dusky; thorax with a double fuscous line attenuated and abbreviated behind, but near the middle; and a larger line on each side abbreviated before, confluent behind, extending upon the scutel; a spot of the same color above the insertion of the wings; pleura with about two dusky spots, one over the insertion of each of the posterior feet; wings with three blackish spots on the costal margin, of which one is on the middle; the second much beyond the middle, obsoletely extended into an undulated band; the third is near the tip; feet [366] dusky at tip and on the posterior thighs near the knees; tergum with blackish bands. Length of the body nearly one-fifth of an inch. LONG'S SECOND EXPEDITION. 249 A very pretty species; the wing nervures are like those of Ml. fasciata Meig. The antennae in my specimen are deficient. Found on the coast of Lake Superior in a thick growth of bushes. SCIARA Meig. MOLOBRUS Latr. 1. S. ATRATA.-Entirely deep black, polished, immaculate; wings dusky, iridescent; nervures dark fuscous; poisers black; thorax in a particular light somewhat pruinose; abdomen opaque, with short black hairs; spines of the tibia rather longer than the transverse diameter of the tibia. Inhabits North-west territory. t Length to tip of wings less than one-fifth of an inch. The nervures of the wings agree with those of S. thomne Fabr. This seems to be very closely allied to S. nigra Wied., an inhabitant of South Carolina, but the thorax in a particular light exhibits a grayish reflection, a character which Wiedemann attributes to the antennae only in his species. The antennae are deficient in my specimen. 2. S. POLITA.-Deep black, polished; poisers whitish; feet yellowish at base. Inhabits North-west Territory. Body with numerous short hairs which are slightly sericeous; eyes without interval above the antennae; wings dusky, pale yellowish at base; poisers whitish; feet dusky towards the tip; coxae and thighs yellowish-white.? Length of the body less than three-twentieths of an inch. The abdomen and thorax are both highly polished. [367] 3. S. FRATERNA.-Deep black, polished; abdomen black-brown, opaque; base of the poisers, and feet pale yellowish. Inhabits North-west Territory. Antenna dark fuscous, with dense grayish hair; eyes in contact above the antennae; thorax polished; wings dusky, pale yellowish at base; poisers with a yellowish scapus and fuscous capitulum; feet dusky towards the tip; abdomen fuscous, opake. 9 Length of the body one-tenth of an inch, % smaller. 4. S. EXIGUA.-Black; thorax piceous at the anterior angles poisers whitish at base; feet whitish, dusky at tip. LONG'S SECOND EXPEDITION. Inhabits North-west Territory. Antenne fuscous, with dark gray hairs; wings a little dusky nervures fuscous; poisers elongated, whitish, capituluml fuscous; abomen fuscous, opaque. % Length of the body one-twentieth of an inch. ~ A little larger, with the base of the feet and of the poisers of a darker shade than those of the male. SCATOPSE. S. ATRATA.-Deep velvet black; tarsi pale; tip of the antennae abruptly compressed. Inhabits Pennsplvania. Body hardly polished and nearly opaque, immaculate; poisers color of the body; wings hyaline; marginal nervures but little more than half the length of the wing, fuscous; furcate nervure attaining the tip; below the furcate nervure are two parallel nervures which do not reach the margin; beneath the latter is the ordinary undulated nervure. I obtained several specimens which were crawling on the glass of a window, in September, in Philadelphia. The [ 368 ] nervures of the wings differ somewhat from those of the S. notata, Linn. Meig.; the marginal nervures do not approach so near the tip of the wing, and instead of a single nervure between the forked nervure and the undulated nervure, as in the notata, this species has two. BIBIO Latr. Meig. B. THORACICA.-Black; thighs rufous. Inhabits East Florida. Body black, somewhat polished; thorax bright yellowish-rufous, with a small black spot on each side of the scutel; collar, scutel, and metathorax black; spines of the anterior tibiae piceous, the exterior one much larger; wings fuscous; the fourth marginal nervure abbreviated, and not attaining to the inner margin. Length 9 two-fifths of an inch. This is a very large and fine species. On the thorax is sometimes an obsolete brown line. LONG'S SECOND EXPEDITION. 251 BERIS Latr. B. VIRIDIS.-Bright green; tergum black-brown; venter pale; feet yellowish. Inhabits Pennsylvania. Head brassy-green polished; antennae obscure yellowish, brownish at tip; proboscis and palpi whitish; stethidium green, polished; scutel with four yellowish spines; wings hyaline; stigmata large, fuscous; nervures fuscous, those of the costal margin anterior to the stigmata whitish; central areola destitute of an abbreviated nervure, two nervures passing off from the tip, and a third from very near its base; poisers white; feet pale yellowish, tarsi dusky at [369] tip, posterior tibira fuscous at tip; tergunt black-brown, incisures and lateral edge yellowish; venter pale yellowish, dusky at base. Length to the tip of the wings one-fourth of an inch. This species seems to be allied to the tibialis of Europe, but the posterior tibia are not very obviously clavated, the central cellule of the wings is destitute of the small abbreviated nervure, and the inferior of the three nervures which radiate from this cellule issues out very nearly from its base, and not from the inferior middle as in that species. ODONTOMYIA Meig. Latr. 0. VERTEBRATA.-Black; abdomen white, with dorsal black spots. Inhabits North-west Territory. Mouth deep black, pale within; hypostoma with an elevated testaceous knob; antennae deep black, terminal joint beneath dusky testaceous; thorax blackish, with hardly perceptible hairs; scutel dull testaceous, black at base; tip a little hairy; spines horizontal, white; wings white; poisers white, with a whitishglaucous capitulum: feet yellowish-white; abdomen subquadrate, much depressed, white; tergum with a series of large black spots almost connected together. Length S rather morethan three-tenths of an inch. COENOMYIA Latr. Meig. C. PALLIDA. [Ante p. 42.] 252 LONG'S SECOND EXPEDITION. THEREVA Latr. [370] T. FRONTALIS. —Black; thorax with two yellow vitta; tergum annulate with yellow. Inhabits North-west Territory. Head beneath with white hair; antennae, proboscis, and palpi black; front and vertex dusky yellowish, with a large, deep black, glabrous, polished, transverse, undulated spot; thorax black, with two yellow lines, or yellow with three black lines; wings hyaline, tinged with dull yellowish; nervures fuscous, slightly margined, and with a carpal spot; scutel yellowish, with a dusky basal spot; tergum glabrous, polished, the posterior margins of the segments bright yellow, wider upon the sides; pleura and pectus glaucous, the latter hairy; poisers whitish; with a blackish capitulum; feet black; tibia excepting at tip dull testaceous; venter cinereous, changeable, second and third segments with yellowish posterior margins. Length more than half an inch. [371] ANTHRAX Latr. 1. A. ALCYON.-Wings brown, a hyaline spot near the middle, another at tip in which are two curved brown lines. Inhabits North-west Territory. Body black, with pale fulvous hair; head yellowish-white, hairs above the antennae black; tip of the hypostoma prominent, and with black rigid hairs; antenna black, basal joint yellowish with black hairs; vertex black; occiput with a very profoundly impressed line above; scutel piceous; wings dusky, pale brown on the disk, an obsolete, small, subhyaline spot between the middle and the base; a large, subtriangular, hyaline spot near the middle, a small portion of which is cut off by a nervure; tip with a large, subquadrate-oval, hyaline spot, the two arcuated nervures that pass across this spot are margined with blackish; central cellule widely bilobated at tip, lobes equally approaching the inner margin, a nervure passes from between the lobes to the edge of the wing, an abbreviated nervure passes from the lobe nearest the base, half way to the inner margin, and another nervure connects this lobe with the third nervure so as to form an additional cellule; feet yellowish; tarsi black; venter pale, two LONG'S SECOND EXPEDITION. 253 last segments black on the disk; tergum with blackish hair on the incisures. Length nearly eleven-twentieths of an inch. This species seems to approach nearest to Wiedemann's fifth tribe, though the additional cellule will justify its being placed apart; we observed it frequently on St. Peter's river and on Red river. 2. A. TEGMINIPENNIS.-Black with pale fulvous hair; wings brownish-black, immaculate. [372] Inhabits North-west Territory. Head yellowish-white below the antennae; hypostoma prominent, with a few rigid black hairs at tip; antennae black, basal joint whitish, with black hair; front dull fulvous; vertex black; wings entirely brownish-black, without spot; feet pale rufous; tarsi black; tergum with black hairs at the incisures, which on the side alternate with the fulvous ones, but more distinctly so near the tip. Length from nine-twentieths to half an inch. This species belongs to Wiedemann's fifth tribe. 3. A. FULVIANUS.-Black, covered equally with pale yellowish hair; wings hyaline, with a narrow, brown, costal margin. Inhabits North-west Territory. Head with dull yellowish, short hairs, intermixed with black ones on the front and hypostoma; thorax densely hairy; wings hyaline, interval between the two nervures of the costal margin, and base to the first transverse nervure, light brown; feet black, sericeous, with yellowish-fulvous hair, intermixed with black hairs; tergum covered with dense hair, without any intermixture of black hairs, and without any fasciated appearance; venter each side behind with hairs of a brighter fulvous tint than the others. Length more than nine-twentieths of an inch. Allied to A. hottentota Fabr. Belongs to the fifth tribe in Wiedemann's arrangement. It is common on St. Peter's river, at Pembina, &c. It is closely allied to alternata nob. in the characters of the wing, but there is no sign of fascia on the tergum, nor of alternating black fascicles of hair on the sides. The color of the hair on the last segments 254 LONG'S SECOND EXPEDITION. of the venter is sometimes ferruginous, but it is always of a deeper tint than that of [373] other parts of the body. It seems to vary in size, I have a specimen less than one-fourth smaller. 4. A. FASCIPENNIS.-Black, slightly hairy; wings varied with blackish and hyaline. Inhabits Red river of Winnepeek. Body deep black, hairs sparse, very short, ferruginous; head with black short hairs above, and between, the antennae; sides of the mouth whitish; hypostoma with dull, yellowish-ferruginous hairs; posterior orbits with silvery hair; thorax with long hairs before the wings; scutel margined with piceous; wings with a wide, blackish-brown costal margin from which proceed two oblique bands; the basal one is dilated and attains the thinner margin, on which it extends from the middle of the basal curve of the wing to the extremity of the first and second nervures; the second band is irregularly arcuated and is abbreviated near the thinner margin where it terminates in the form of a hook; on the costal margin near the tip is an oblique spot connected with the costal colored margin; poisers fuscous; capitulum white at tip; tergum with the second and third segments obsoletely piceous each side; venter whitish at base; feet dusky; tibia pale. Length one-fourth of an inch. This species coincides with the third tribe in Weidemann's arrangement of this genus. It is small, and the wings are prettily variegated. The specimen I obtained is remarkably destitute of hair. 5. A. COSTATA.-Black; wings hyaline, with a black co,,al margin, and small anastomosis in the middle. Inhabits North-west Territory. Body deep black, with very short, sparse, sericeous hairs thorax with the lateral hairs longer and pale yellowish-rufous wings hyaline, with a blackish costal margin bounded [ 374] by the fourth nervure as far as the middle, where it is abruptly contracted so as to be included by the first apical nervure for a short distance, when it is gradually contracted so as to be included by the two costal nervures; anastomosis near the centre LONG'S SECOND EXPEDITION. 255 of the wing, blackish; feet black; poisers fuscous, capitulumwhitish. Length more than three-tenths of an inch. The disposition of the wing nervures of this species corresponds with that of the fifth tribe in Wiedemann's arrangement. LAPHRIA. 1. L. POSTICATA.-Black; thorax and before the tip of the tergum covered with yellow hair. Inhabits North-west Territory. Antenna, hair of the vertex and of each side of the antennae, black; long hair beneath the antennae yellowish; hair of the cheeks long, white; thorax covered with yellow hair, immaculate; pleura and pectus black, the latter with long whitish hair between the feet; poisers yellowish-white; wings dusky; tergunl blued-black, polished, with black hairs each side; two last segments and posterior margin of the preceding segment covered with yellow hair; venter polished, immaculate. Length three-fifths of an inch. 2. L. FLAVICOLLIS.-Black; wings dusky; hair of the head and thorax yellow. Inhabits North-west TerritoryHead with long yellow hairs, and a few black ones over te mouth; proboscis, antennae, and palpi black, the latter with hairs; thorax thickly clothed with yellow hair, immaculate; wings dusky; nervures fuscous; poisers [375] dark reddishbrown; feet with black hair; a few pale hairs on the basal half of the thighs, and many about the origin of the feet; terguni black, with a slight shade of blue, polished, and with black hairs. Length more than half an inch. This species resembles the thoracica Fabr., but may be distinguished by the color of the hair of the head; it is alsa a smaller insect, with a more slender form. ASILUS. A. ABDOMINALIS.-Black; hypostoma silvery; tergum fulr;^s in the middle. Inhabits North-west Territory. 256 LONG'S SECOND EXPEDITION. Head rather small; antenna elongated, second joint very small; hypostoma bright silvery; mystax sparse, rigid, black; thorax with minute black hairs, and a few longer ones on the margin; wings broad, black; tergum, segments, excepting the basal one and two terminal ones, reddish fulvous. Length more than three-fifths of an inch. The styles of the antennae being lost in the specimen, I am not certain that this species is correctly arranged when placed in this genus. It will not agree with Dioctria, as the antennve are perfectly sessile, nor with Dasypogon, as the basal joint of the antenna is nearly four times the length of the second joint. The rectilinear posterior tibiae will not authorize its reference to Laphria. The appearance of the pectus and the adaptation of the feet are precisely as in Asilus. In the arrangement of the wing nervures it agrees with Wiedemann's first tribe. [Wiedemann has changed the name to Aeacus because the insect belongs to Dasypogon, and Say had already described another under the same specific name, (Discocephala abdominalis Say, Jour. Acad. Nat. Sc. 3, 50). The present species belongs to Stenopogon.-SACKEN.] HEMERODROMIA Hgg. [376] H. SUPERSTITIOSA.-Whitish; thorax with a broad, blackish. brown vitta; tergum with a broad black vitta, which is crenate on its edges. Inhabits North-west Territory. Antennae, proboscis, and front white; occiput and inferior part of the head blackish-brown, in some parts slightly sericeous; eyes chestnut-brown; thorax with a broad vitta, which is paler in the middle and occupies the greater portion of its surface; wings hyaline; poisers white; scutel dusky, with a paler margin; tergum, the broad vitta is very deeply crenated on its edges, and is often separated into a series of large spots by the incisures; beneath white. Length nearly three-twentieths of an inch. This species is very closely allied to the H. oratoria Fall. The disposition of the nervures is the same with those of that species, but the oratoria is said to have only a line on the thorax in place of a vitta, to have the abdomen all dark brown, and the tip of the posterior tibia brown. LONG'S SECOND EXPEDITION. 257 SARGUS Latr. Meig. 1. S. DECORUS.-Front blue; thorax green; tergum greenish golden; feet pale yellow. Inhabits Pennsylvania and East Florida. Hypostoma and vertex blackish; proboscis yellow; antenna dusky yellowish; third joint darker; frontal tubercles with a white reflexion; wing dusky, stigma distinct; poisers pale yellow; pleura blackish-piceous; feet yellow; posterior tarsi dusky; abdomen slender, widest at tip, gradually [377] attenuated to the base, and with pale yellowish-brown hair. Length about three-tenths of an inch. This species is very closely allied to the S. auractts M3eig. Fabr., but it is smaller, and the feet are dissimilar; it may, however, prove to be a variety of that species. 2. S. DORSALIS.-Black, eyes brassy, with a green line; feet white, tibiae and tarsi above blackish. Inhabits Kentucky. Stemmata approximate on the vertex; eyes brown, when recent brassy-green tinged with red or purplish, a broad, green, longitudinal line across the middle; antennae whitish at base; feet white; tarsi black at the tip; anterior and posterior tibiae black above; wings dusky nervures deep brown, carpus distinctly marked by an oblong, opake, brown spot; abdomen oval, middle of the two or three basal segments of the tergum and venter whitish. Length of 9 one-fifth of an inch, S rather less. The male is very similar to the female, but is a little smaller. This species is allied to the genus Vctppo Latr., by the nervures of the wings, the nervure between the three which radiate from the central joint being altogether wanting, but the second joint of the antenna resembles that of a Sargus, the third joint is deficient in my specimen. In general form it resemble S. politus Linn. [Is a Beis according to Wiedemann.-SACKEN.] PARAGUS Latr. P. 4-FASCiATUS.-Black; tergum with four yellow bands; costal margin of the wings fuscous. 17 258 LONG'S SECOND EXPEDITION. Inhabits North-west Territory. Head pale yellowish; hypostoma slightly impressed with a black line, and another dilated black line descends [378] from the black vertex and includes the superior portion of the tubercle of the antennae; mouth each side black; antennae blackishpiceous, basal joint and seta paler; second joint decidedly longer than the first; eyes with two yellow bands of which the anterior one is irregular; occiput black, with a cinereous orbital line thorax with four yellow spots on the anterior margin; an obsolete, yellowish, curved line above the wings terminating anteriorly in a transverse, whitish spot on each side of the centre, an angulated yellow line behind; pleura with two yellow spots placed vertically; scutel edged with yellow; wings hyaline, a fuseous costal margin, ferruginous at base and gradually dilated towards the tip; poisers white; feet white; anterior pair with the anterior half of the thighs and tibia and all the tarsi black; intermediate pair with the tip of the thighs, of the tibie, and all the tarsi pale rufous, posterior pair hairy beneath, with a tooth near the tip and posterior half black; tarsi and tip of the tibiae pale rufous, the latter arcuated; tergum with a band near the base, somewhat narrowest in its middle; another narrower one on the middle and two near the tip a little broader in their middles, yellow; venter with about three distant, narrow, yellow bands, of which the middle one is sometimes fulvous. Length less than three-fifths of an inch. This insect does not altogether agree with the characters of the genus in which I have placed it, inasmuch as the hind thighs are toothed, the hind tibiae arcuated, and the terminal joint of the antennae is oval and not elongated. It disagreeswith Mlilesla in the elongated first and second joints of the antenna, and with Pipiza in the length of the palpi, and but for the character of the antennae, I should certainly refer it to the genus J7ilesia. [Macquart has placed this insect as a new genus Mixtemyi:a. -— SACKEN.] CURCULIONIDES. 259 Descriptions of North American Curculionides and an arrangement of some of our known species agreeably to the method of Schoenherr.* July 1831. BRUCHUS Fabr. 1. B. 4-MIACULATUS, F. Oliv. —Fabricius says it inhabits the island of Santa Cruz, and Olivier says it is from Carolina. The only individual I have seen was found by Mr. Barabino at New Orleans. Olivier gives its length at three-twentieths of an inch. The present specimen is considerably over one-tenth, but is less than three-twentieths. 2. B. OBTECTUS.-Dusky; base and tip of the antennae feet and abdomen obscure rufous. Inhabits Louisiana. Body above blackish; with prostrate, somewhat dense, dull yellowish hairs: antennae gradually thicker to the tip, basal half and terminal joint dull rufous, second joint nearly as long as the third: thorax with numerous, distant punctures; elytra immaculate, the striae distinct; apical margin obsoletely rufous; beneath black, with prostrate hair; feet dull rufous; posterior thighs somewhat dilated, beneath blackish with a tooth near the tip and about two small ones nearer the tip; abdomen dull rufous, immaculate. Length less than three-twentieths of an inch. 3. B. TRIANGULARIS.-Black; elytra with a triangular band, in which is a black spot each side. Inhabits Mexico. *I am greatly indebted to this distinguished naturalist for his able work the " Dispositio Methodica Curculionidum" as well as for a knowledge of several unpublished genera of this family; my thanks are also due to Germar who has kindly furnished me with his "Coleopterorum species nova ant minus cognitse descriptionibus illustrate," in which many new genera are instituted. [The very unnatural classification of Schbnherr has left this family in such an unsatisfactory condition so far as regards the identification of genera, that I have not yet attempted a critical study of our species. My notes on this paper therefore will be meagre and more imperfect than in other portions of the work.-LBC.] 260 CURCULIONIDES. Body black; antennae rufous at base; thorax transverse; elytra with slender, deep, punctured striae; a common, large triangular white band, connected along the suture with the white scutel and attenuating to the lateral edge; in the middle on each side of the suture is a black dot; posterior thighs with a spine, beyond which are two smaller spines. Length nearly three-twentieths of an inch. [ 2 ] Readily distinguished by the common white triangular band of the elytra marked by two black spots. I had three specimens from Mexican seeds of the size of those of Palmetto, but concave within. 3. B. MIMUS.-Brown, varied with black lines and cinereous. Inhabits Indiana. Body light brown, variegated: antenna pale rufous: thorax much narrowed before, with two interrupted, elevated, black lines and one or two on each side; base rather prominent at the scutel; scutel whitish apparently bifid: elytra with black spots and abbreviated lines, which have a whitish spot at their anterior tip; a light brown line curves inwards from the humerus and passes along the third interstitial line towards the tip; beneath dusky or blackish: feet pale rufous; posterior thighs blackish beneath with several minute spines and four or five larger ones near the tip: posterior tibiae blackish, subfasciate beyond the middle: podex yellow. Length less than three-twentieths of an inch. 5. B. OCULATUS.-Brown; posterior thighs three or fourtoothed. Inhabits Mexico. Body elongated, pale brown, covered on every part with short prostrate, dense hair: head on the front dusky, with a slight cupreous tinge; much dilated orbits cinereous; tip of the'labrum piceous: antennae fuscous: four basal joints honey-yellow; thorax with a hardly obvious, dorsal, pale line: elytra with acute striae, which have distant punctures rather short: anal segment but little oblique, more than half the length of the elytra; feet honey-yellow: posterior thighs near the tip with about four teeth, of which the first is most prominent. Length one fifth of an inch. CURCULIONIDES. 261 The anal segment is more nearly horizontal than any species I have seen. 6. B. OBSOLETUS.-Blackish, varied with cinereous hair. Inhabits Indiana. Body blackish cinereous, with a slight tinge of brown: antennae not deeply serrate: thorax much narrowed before, [ 3 ] cinereous each side, a slight impressed dorsal line; base with the edge almost angulated, central lobe almost truncate; scutel quadrate, whitish, longitudinally divided by a dusky line; elytra with the interstitial lines having a slight appearance of alternating whitish and dusky; on the middle of the third interstitial line is a more obvious abbreviated whitish line: posterior thighs with a black spine, and two smaller ones. Length over one-tenth of an inch. The whitish or cinereous markings are not very striking; on the elytra they may sometimes be traced into two obsolete macular bands. I obtained many specimens from the seeds of an Astragulus in August, in company with Apion segnipes nob. 7. B. lMUSCULus.-Blackish with cinereous hair; antennae and feet rufous. Inhabits Indiana. Body blackish-cinereous, with a slight tinge of brown, or black with cinereous hair: labrum piceous: antennae rufous at base and tip, piceous in the middle: thorax rather long, narrowed before, somewhat cinereous each side, and on a dorsal line; basal edge lobed at the scutel: scutel quadrate cinereous, with a dusky line; elytra, third interstitial line with an abbreviated cinereous line on its middle; feet rufous; anterior thighs at base, intermediate pair to the middle, black; posterior thighs with a spine, and three close set smaller ones distant from it, and with their tibire black. Length less than one-tenth of an inch. Resembles obsoletus nob., but is a little smaller, and the rufous antennea and feet distinguish it. 8. B. TRANSVERSUS.-Black, with cinereous hair; interstitial spaces with transverse black lines. Inhabits Indiana. Body black, more or less covered with cinereous hair; head 62' t CURCULIONIDES. black: antenna rufous: thorax transverse, widely rounded before, with a scutellar lobe: scutel subquadrate with a dusky line: elytra, interstitial spaces interrupted by transverse black lines: feet rufous: posterior thighs black at base, armed with a spine near the tip. Length over one-tenth of an inch. ANTHRIBUS F. Sch. [4] Subgenus TROPIDERES Sch. 1. A. CORNUTUS.-Thorax with five tubercles. Inhabits Indiana. Head white: mandibles piceous: antennae rufous, clava fuscous: rostrum moderate: eyes distant: thorax with two fascicles of erect hairs on the anterior edge, and three larger ones placed transversely on the middle; elytra somewhat variegated, with several fascicles of erect hairs on the interstitial lines; and a white, double, common, transverse spot before the middle; feet hairy. Length less than one-fifth of an inch. [This is A. coronatus Sch.-LEC.] Subgenus PHAENITHON? Schdn.] 2. A. BREVICORNIS.-Antennm short; scutel and alternate spots on the elytra, whitish. Inhabits Mexico. Body black-brown: head covered with prostrate whitish hair: antenne hardly longer than the head, fuscous; thorax with a transverse elevated subbasal line, rectilinear. in the middle, arquated each side, reflected at the posterior angles, and terminating at the lateral middle: scutel white: elytra striated: interstitial spaces convex, with alternate blackish and whitish spots; humerus prominent, and a prominence on the middle of the base: feet obscure piceous. Length less than three-twentieths of an inch. The tip of the club, exhibits the appearance of a fourth joint. which however is much smaller than the others; the eyes are emarginate. These characters justify the formation of a distinct subgenus. CURCULIONIDES. 263 ATTELABUS F. Sch. A. PUBESCENS nob. Jour. Acad. Nat. Sci. Vol. 5, p. 252. A. Rhois Boheman Acta Mosqu. RHYNCHITES Herbst. Sc 6nh. 1.. COBLARIS Fabr.-The three ultimate joints of the antennae are elongated, differing in this respect from the other species of the genus; it has been separated under the generic name of Sapindus. The species varies so much in color as to have given rise to several specific names, viz.: Anthribus collaris Fabr. Syst. Eleut. Rhynchites angustatus Herbst. [ 5 ] Rhynchites rubricollis nob., Journ. Acad. Nat. Sci.* and Melsh. Catal. Rhynchites nigripes Melsh.; quercus Knoch. in Melsh. Catal. Rhynchites rvficollis Germar, Sp. Nov. p. 188. The latter is very remarkable in having the thorax of the same color as the elytra. Dejean in his Catalogue places the species in the genus Rhinomacer. [Is Eugnamptus angustatus Sch.-LEc.] 2. R. HIRTUS Fabr. R. eneus? Bohemann. Doubts have been expressed of our insect being the hirtvs of' Fabr., but it agrees better with the description than any. It is also, as Fabricius says, of the stature and magnitude of R. p2ubes(en's. 3. R. ERATUS.-Brassy, antennas, rostrum, and beneath, obscure bluish. Inhabits Pennsylvania. (curculio weratus Knoch, in Melsh. Catalogue. Body brassy, punctured: rostrum very slightly dilating towards the tip, with an impressed line above, from the base to the middle: front with small punctures: thorax with dense punctures: elytra with a transverse, dilated but not profound, com*This reference is wrong, it is described in Long's Expedition, 2, 288S ante, p. 192. —LEc.] 264 CUTRCULIONIDES. mon indentation: with striae of transverse, large punctures: beneath blackish-blue. Length nearly one-tenth of an inch. This is the smallest North American species yet known. I have found it on the oak in June. Genus PTEROCOLUS Sch. Antennae 11-jointed, not geniculate; basal joint not much elongated; eighth joint transverse linear; ninth and tenth transverse subquadrate, dilated, and with the ultimate semioval one remote, perfoliated, forming an oblong oval club; rostrum dilated at tip: head rather long behind the eyes, neck not contracted; scutel transverse subquadrate: elytra somewhat abbreviated; each rounded at tip, depressed above: podex and part of the back, naked: feet robust: thighs unarmed, dilated; tibia unarmed, ciliate densely on the exterior edge with very short spines, and with small spines around the edge of the tip: body rounded. This genus differs from Rl1pzchites by the rounded form of the body; the shorter and depressed elytra, more divaricate [ 6] at their tips; the rostrum is shorter and more contracted in the middle, and the origin of the antenna is nearer the middle or rather the base of the rostrum; the tibia are ciliated with short spines, &c. P. ovatzs Fabr. (Attelabtus) Syst. Eleut. APION Herbst. 1. A. ROSTRUM nob. Jour. Acad. Nat. Sci. This may very probably prove to be A. nigrunu Herbst. Dr. J. F. Melsheimer informed me that it is found in abundance on the leaves of Robinia pseud-acacia. [This is Aplion Sayi Sch.-LEc.] 2. A. SEGNIPES.-Black; feet rufous, with black incisures and tarsi. Inhabits Indiana. Body black, punctured with prostrate white hairs; rostrum rather long, and very slightly angulated, slightly tapering, punctured at base: antenna with three or four basal joints, rufous: thorax with dense large punctures: elytra with punctured profoundly impressed stria; feet rufous; thighs at base, coxe, tro CURCULIONIDES. 265 chanters and knees black; tibia black at tip; tarsi black with a whitish reflection at the tip of their joints. Length about one-tenth of an inch. I obtained numbers of this species from the seeds of an Astragulus in August. LAEMOSACCUS Sch. L. PLAGTATUS Fabr. Schonh.; Carculio nephele Herbst. This is a well marked insect, remarkable by the very large fulvous mark on the disk of each elytron occupying two-thirds of the whole surface. The tooth of the anterior thighs is very prominent. I obtained it on the oak in July. THAMNOPHILUS Schonh. 1. T. BARBITUS.-Body rather long and narrow, blackishbrown, with confluent punctures: rostrum punctured, cylindrical, as long as the head and thorax, slightly broader at tip, a little curved; thorax with one or two slight tubercles each side before elytra with the striae rather wide and deep, punctured; thighs with a tooth beneath. Inhabits Pennsylvania. Length to the tip of the rostrum three-tenths of an inch. Belongs to the Subgenus Pamus Schonh. [Placed by Schonherr in ilag(dalnus to which also belong the following four species.-LEc.] [7] 2. T. OLYRA Herbst (Cli'culio) Natursyst. vol. 7, p. 7. The scutel is white; this character was probably obliterated in Herbst's specimen as he has not mentioned it. 3. T. ARIICOLLIS nob. (Rynchenus) Journ. Acad. Nat. Sci. vol. 3, p. 312. 4. T. PANDURA.-Thorax with a lateral tubercle before the middle and on the posterior angle; tarsi piceous. Inhabits United States. Clrcucio pandura Knoch in Melsh. Catalogue. Body black, punctured: antenna piceous: rostrum slightly arquated: thorax with separate punctures; an angle or tubercle each side a little before the middle, contracted before the pos ^66 CTRCULIONIDES. terior angles, which are prominent: elytra with strive of large punctures: tarsi rufo-piceous. Length over one-tenth of an inch. Much like T. olyra, but is much smaller, the lateral thoracic tubercle is nearer the middle and scutel is black. 5. T. PALLIDUS.-Pale yellowish; head and thorax tinged with rufous. Inhabits Indiana. Body punctured, somewhat elongate; head densely punctured, punctures not profound; rostrum a little dilated towards the tip, punctured: club ovate acute, not much elongated: thorax with ldense, irregular, not very deep punctures, a dorsal glabrous line, iand anteriorly on each side is an acute tubercle: elytra with impressed stria in which are oblong punctures; interstitial lines a little convex and slightly rugose with a very minute series of scales or pores, near the tip these lines are more convex, basal edge somewhat elevated: thighs, spines acute; postpectus and base of the abdomen dusky. Length to tip of rostrum about three-twentieths of an inch. The color is much paler than that of the arnicollis nob. and the club is much shorter. CHLOROPHANUS Dalm. C. ACUTUS nob. (Carculio) Journ. Acad. Nat. Sc. vol. 3, p. 310. This insect also occurs in Indiana. [8] [Is the type of Brachystylus Sch.-LEc.] ITHYCERUS Schonh. L. CURCULIONIDES Herbst. I have always considered the Curculio jpunctatulus Fabr. and Oliv. synonymous with this, but Germar is of the opinion that it is a different insect. Curculio novweboracensis Forster. [I consider Pachiyrihyncus Schonherri Kirby, Fauna Bor. Am. 203, Rhinaria Schonherri Sch. Curc. 7, 2, 369 as synonyms of this insect.-LEc.] CURCULIONIDES. 267 Genus THECESTERNUS nob. Anterior part of the pectus excavated for the reception of the rostrum. Natural character.-Body convex, firm, unequal: rostrum very short, thick, entire: antennae rather slender, inserted near the middle of the rostrum, in a deep, somewhat angulated groove; first joint oblong turbinate, a little arquated; second and third short, subturbinate, the latter shorter; fourth and eighth very short, quadrate or transverse; club rather large, of which the basal joint (or two joints?) is as long again as the ultimate one. which is subacute: eyes a little oblique, somewhat acute before, Tblong subovate: thorax longitudinally somewhat quadrate: scutel none: elytra connate, rigid, hardly broader at base than the thorax, narrowed at tip and concealing the podex: pectus anteriorly deeply excavated to receive the rostrum: feet, anterior pairs approximate: posterior pair distant: thighs not dilated: tibise with a short, thick, or double spine at tip: tarsi simple. Obs.-I proposed this genus when describing the species, but omitted the name. It differs from Brachycerus F., and Episus Billb. by the pectoral excavation, general form of the body, less robust antennae, and larger club. T. HTUMERALIS nob. (Brachycerus,) Journ. Acad. Nat. Sci. Vol. 5, p. 254. [This is' the type of Lithodus Germ. Sch. Cure. 2, 420.LEO. GRAPHORHINUS Sch. 1. G. VADOSUS.-Body dark cinereous: rostrum with a deeply impressed line, on each side of the middle of which is a short impressed line, and between the eyes is a dilated, suborbicular indentation: thorax with large, somewhat irregular, approximate punctures: ely.tra with the alternate lines more elevated, particularly towards the base; punctures transverse. [9] Length less than two-fifths of an inch. Inhabits Missouri. This insect was presented to me by Nuttall. [Belongs to Epicaerus.-LEc.] 268 CURCULIONIDES. 2. G. OPERCULATUS.-Rostrum obsoletely truncated; a fiontal dilated puncture. Inhabits Mexico. Body black, covered with minute, orbicular, perlaceous scales head with a dilated impressed puncture between the eyes, an obsolete longitudinal sulcus on the short, robust rostrum and a still less obvious one on each side; thorax canaliculate in the middle; elytra with series of rather large impressed punctures: thighs with a sinus beneath near the tip. Length over seven-twentieths of an inch. DERACANTHUS Schonh. Subgenus ARACANTHUS. D? PALLIIDS.-Body whitish, varied with pale brown; rostrum not longer than broad, with an impressed, very obvious line from the vertex to the tip: eyes small: thorax with numerous, small punctures not close set nor very regularly placed; base not undulated: elytra with regular striae of punctures. Inhabits United States. Length over one-tenth of an inch. THYLACITES Germ. 1. T. MICROPS.-Body whitish: rostrum very short and broad: eyes very small, orbicular; front with an acute impressed line: vertex and thorax a little rough with numerous slight indentations scutel not obvious: elytra with their strie and punctures nor visible, suture a little elevated: feet simple. Inhabits Missouri. Length less than three twentieths of an inch. [This is T. microsus Sch.-LEC.] Subgenus STROPHOSOMUS Sch. 2. T. TESSELATUS nob. (Liparus) Jour. Acad. Nat Sc. CALLOPISTUS Schonh. (in litt.) B. AURICEPHALUS nob. (Curculio) Jour. Acad. Nat, Sc. vol. 3. p. 310. [Is Platyomts auriceps Sch.-LEc.] CURCULIONIDES. 269 TANYMECUS Germ. 1. T. LACAENA.-Body a little cupreous, dull yellowish cinereous, densely punctured: rostrum with a raised line, tip widely indented above: antennae blackish rufous: thorax with three obsolete blackish vittae; widest a little before the middle: scutel very small, cinereous: elytra with the strise hardly impressed at base but obviously impressed towards the tip, punctures rather large, quadrate; interstitial lines flattened, tip of each with a short joint in the middle. Length to tip of rostrum three-twentieths of an inch. (ioculio lacaena Herbst? Natursyst. 2. T. CONFUSUS.-Much like the preceding but is destitute of the thoracic vitte. Length to tip of the rostrum about three-tenths of an inch. [Appears to be T. confertus Sch.-LEC.] APHRASTUS Schonh. (in litt.) A. TAENIATUS nob. Journ. Acad. Nat. Sc. Elytra whitish, second and fourth interstitial lines light brown. [10] SITONA Germ. 1. S. INDIFFERENS.-Body black, rather thinly covered with cinereous hair: rostrum short, dilated, with an indented line which does not reach the tip: thorax cylindric with small, irregular, hardly impressed punctures: elytra striate, the strie with rather large punctures: feet obscure piceous. Inhabits Missouri. Length three-twentieths of an inch. In form somewhat like lineellus Gyll. 2. S. scIssIFRoNs.-Covered with white scales; elytra with black spots. Inhabits Missouri. Body entirely covered by minute scales, which on the sides of the thorax and elytra are white, and on their middle light brown; head obviously punctured and with a widely impressed line extending to the tip: antennae dark piceous; basal joint paler, clavate: thorax rather short, slightly rounded each side, obviously 270 CURCULIONIDES. punctured: a much dilated brown dorsal vitta in which is a narrow white vitta, a lateral brown vitta from the eye: elytra with a much dilated common brownish vitta; a few blackish spots; tibiae with a slight rufous tinge: tarsi spongy beneath: eyes rounded. Length less than one-fifth of an inch. This much resembles the S. lineellus Gyll., but the nasal joint is shorter, the eye smaller, the thorax shorter, &c. HADROMERUS Schonh. H. HILARIS.-Brown varied with cinereous: rostrum with a deeply indented line: antennae and tarsi rufous: thorax and head with numerous deep punctures; the former with a dilated lateral vitta: elytra with an oblique cinereous arquated vitta from the humerus to the middle; tip cinereous almost constituting a band beneath with whitish scales: feet somewhat banded. Length one-fifth of an inch. CGrculto lilari? Herbst. Natursyst. The male is smaller and the extremity of the oblique vitta is almost insulated so as to form a small spot in the middle of each elytra, surrounded by a dark line. [Belongs to Pandeleteius Sch.-LEc.] CLEONUS SchOnh. C. TRIVITTATUS.-Covered with cinereous hair; thorax trilineate, elytra, suture and vitta on each blackish. Inhabits Arkansaw. Lixus trivittatus nob. Jour. Acad. Nat. Sci. [Wrong reference. -LEC.] Body black, densely covered by cinereous hair; head, a black lateral line from the eyes to the tip of the rostrum, and a carinate line above; thorax deeply and widely indented behind; three longitudinal blackish vittae; an abbreviated, longitudinal, slightly elevated line before, scattered punctures; elytra with regular series of profound punctures; a sutural double blackish vitta spotted or interrupted with cinereous; and a vitta on the middle of each elytron also spotted with cinereous; beneath with small black spots. Length (total) about two-fifths of an inch. [ obtained two or three specimens near the Rocky Mountains. CURCULIONIDES. 271 HYPSONOTUS Germ. 1. H. ALTERNATUS.-Body piceous, nearly covered with prostrate brown hairs: elytra with the strix simple impressed, the hairs upon them forming alternate whitish and brownish spots; a more obvious white spot near the tip of each elytron; front and rostrum with an impressed line; thorax with the punctures [11] large and close set, concealed by the hairs, with a longitudinal raised line; thighs beneath near the tip emarginate. Length less than half an inch. Inhabits the North-west Territory. [Belongs to Aloplus.-LEc.] 2. H. IMBRICATUS nob. (Liparus) Journ. Acad. Nat. Sc. [Is an Epicae.rs according to Shonherr.-LEc.] LISTRODERES Schonh. 1. L. CAUDATUS nob. (Rynchaetnus) Journ. Acad. Nat. Sc. 2. L. SQUAMIGER.-Body covered with minute brownish cinereous scales: rostrum with a carinate line; thorax with scattered punctures; not flattened; scutel yellowish or whitish, elytra with punctured striae towards the tip concealed by the scales; the united tip obtusely rounded; humerus obtuse. Length from two-fifths to half an inch. Inhabits Arkansaw. Much like caudatus nob., but in that species the humeral lin', is carinate and acute. 3. L. PORCELLrus.-Body blackish rufous, with numerous short, robust, upright hairs; rostrum broad and rather short, with somewhat elevated lines and wide indentation at base: thorax subcylindric: elytra with a wide impressed strive, in which are transverse punctures; a paler submarginal line each side and terminal spot; feet dull rufous. Inhabits United States. Length over one-tenth of an inch. 4. L. SPARSU.-Body dull drab color; with minute scales, the surface with small, dense, shallow indentations; numerous short, robust, upright hairs; rostrum robust, short; antenna rufous: thorax somewhat rounded; scutel small, transverse: 272 CURCULTONIDES. elytra with rather longer hairs than the thorax, with slender punctured strive, punctures obsolete towards the tip; humerus a little prominent, somewhat carinate; feet unarmed. Inhabits Missouri. Length over three-twentieths of an inch. 5. L. LINEATULUS.-Body with a dirty yellowish cinereous covering, and with short, robust hairs; rostrum with two longitudinal grooves; antennae rufous; thorax rounded, with a transverse indented anterior line and a longitudinal obsolete, impressed one: the whole surface has a granulated appearance; elytrawith the striv and punctures concealed by the covering, the alternate interstitial lines prominent and distinct. Length over one-fifth of an inch. Very distinct from the preceding species and may be distinguished from them by its much smaller size. BARYNOTUS Germ. 1. B. RIGIDUS.-Body dirty brown, with remote, robust, upright hairs: rostrum short, thick, transversely indented between the eyes; thorax a little indented longitudinally; transverse, as broad in the middle as the base of the elytra; elytra with the strie obtuse, slightly impressed, punctured; interstitial lines having the hairs distant and regular. Inhabits Connecticut. Length less than one-fifth of an inch. [Pliyxelis rigidis Sch. Cure. 7, 124.-LEe.] 2. B. ERINACEUS.-Rather slender; thorax rounded, somewhat distant from the abdomen. Inhabits United States. Body covered with very minute, oppressed, orbicular, dark brown scales: rostrum robust, moderate; mandibles exerted arquated simple, acute, unarmed, nearly half as long as the rostrum: thorax rough, the scales and their intervals exhibiting the irregularity of a sanded surface; hairs numerous; interval between the thorax and abdomen widely contracted: elytra with punctured strive and rigid equi-distant black hairs on the interstitial lines; posterior declivity nearly vertical. Length over one-fifth of an inch. [12] CURCULIONIDES. 273 The mandibles are naked and very prominent; the thorax is rounded and its surface is rough and punctured. [Is the type of Panscopus Sch.-LEc.] 3. B. GRANULATUS.-Brown, thorax obtusely granulated and with a pale vitta. Inhabits Indiana. Body dull brown with short raised hairs: head impressed between the eyes: thorax with very obtuse granulations, a longitudinal slender impressed dorsal line in a dull yellowish vitta: elytra a little elevated on the basal edge, striae concave, much dilated, punctured; punctures wide, not very deeply impressed, interstitial lines not so wide as the striae, with hairs; suture a little pale. Length about one-fourth of an inch. The surface of the thorax exhibits the appearance of obtuse little elevated granulations and the profile view shows irregular punctures or interrupted rugae. LEPYRUS Germ. L. GEMINATUS.-Body dusky: rostrum rather short: antenna a little robust: thorax with a yellowish vitta each side: elytra with the alternate interstitial lines light brown, a small white spot in the middle of each. This is the analogue of the L. colon F. of Europe, and so closely allied to it as to be easily mistaken for it. But the body is a little more robust; the rostrum is a little shorter and the antenna are more robust. A specimen was sent to me by Mr. Barabino from Louisiana, I obtained one in Missouri. HYLOBIUS Germ. H. PALES Herbst; Pissodes macelltes Germar Sp. Novae, p. 319. PHYTONOMUS Schonh. P. TRIVITTATUS.-Blackish brown with numerous scale-like hairs. Inhabits North-west Territory. Body blackish-brown, with numerous, robust hairs almost resembling scales, which are longer in three yellowish metallic, 18 274 CURCULIONIDES. thoracic vittam of which the lateral ones are broader and terminate in a spot on the humerus; the vittme and spot are pale brownish cinereous; antennse rufous; elytra with large costal spots, interstitial lines obsoletely alternating with blackish and pale brown-cinereous; suture behind the middle also pale browncinereous; thighs beneath near the tip emarginate: anterior tibiae a little incurved at tip. Length one-fifth of an inch. 2. P. COMPTUS.-Elytra with subquadrate, brown spots. Inhabits United States. Body cinereous-olivaceous, covered with small scales; rostruam. shorter than the head and thorax, rather narrower at base: antennae and feet rufous; thorax somewhat rounded, with a much dilated, brown, somewhat metallic vitta: [13] scutel small triangular: elytra with slightly impressed, but punctured strim, interstitial lines flat, with more or less numerous brown quadrate spots, particularly near the suture, where they are alternate. Length much over three-twentieths of an inch. PERITELUS Germ. 1. P. CHRYSORRHiEUS.-Body covered with dense scales and having sparse, short rigid, inclined hairs; thorax nearly obicular: head, the line of the eyes raised and chestnut color; elytra paler behind, or with a very oblique brown band behind the middle; the striae simple impressed lines; impunctured. Length over three-twentieths of an inch. Inhabits Pennsylvania. [A Cercopeus according to Schonherr.-LEc.] Subgenus A(RAPHUS Schonh. [in litt.] Scutel distinct. 2. P. BELLICUS.-Body black; rostrum short, broad, with an impressed line at base; antenne first joint rather longer than the others taken together and the unarmed feet dull rufous: thorax rather small, with a slight indented line and numerous very short: and very robust yellowish hairs: scutel minute: elytra convex; striae hardly impressed, but with regular series of punctures; the whole surface with minute, close set, hardly impressed points, furnishing very short, yellowish, very robust hairs. Inhabits Florida. CURCULIONIDES. 275 Length nearly three-tenths of an inch. Peritelus leucopheeus of Dejean, Agraphus leuc. Schon., but I believe it has not been described. CYCLOMUS Sch. Subgenus OPHRYASTES Germ. Clava five-jointed; eyes narrowed before. 1. C. VITTATUS nob. (Liparus) Jour. Acad. Nat. Sc. vol. 3, p. 316. 2. C. SULCIROSTRIS nob. (Liparus) Jour. Acad. Nat. Se. vol. 3, p. 318. LIXUS F. Schonh. 1. L. MARGINATUS.-Black, covered with minute cinereous hairs; thorax impressed; elytra, region of the scutel and middle of the base indented. Inhabits United States. Body black, covered with short,minute, robust recurved hairs, punctured; antenna rufous, club dusky; thorax a little convex each side, behind the middle of the side rectilinear, a little contracted before, with an indented line above, more profound near the base; with dilated, confluent, slightly impressed punctures not deeply sinuated at base, with regular series of punctures: elytra region of the scutel indented subacute: abdomen dull fulvous behind. Length from the origin of the rostrum nearly seven-twentieths of an inch. The hair detains a ferruginous powder. It is found on the lower Missouri. It also occurs in the Atlantic States. With my first description of this species I gave it the name of impressus, but in the Curcul. Dispos. Method. Schonherr quotes the same name for a very different and large species of S. America from Sahlberg. [ 14] 2. L. CONCAVUS.-Base of the thorax and of the elytra with a common dilated indentation. Inhabits Indiana. Thorax convex each side, much contracted before, with very small punctures; dorsal indentation obsolete near the anterior margin and in the middle, profound at base: elytra with regular 276 CURCULIONIDES. punctured strie, not rugose; base with a dilated common deep indentation equalling that of the thorax, and another smaller indentation on the middle of the base: thighs unarmed. Length over half an inch. Common, and is the largest species that I have met with in this country. The hair of the body detains a yellowish ferruginous dust which often gives the whole insect that color. It is smaller than the'angustatus F., the thorax is much more convex each side, the eiytra are less abruptly contracted each side at base, &c. 3. L. LATERALTS.-Thorax laterally cinereous; elytra with a transverse basal groove. Inhabits Arkansaw. Body rather slender; head punctured between the eyes: rostrum but little arquated, punctured between the eyes, short: thorax with rather large profound distant punctures on each side, cinereous; a dorsal indented line; sides rectilinear on the posterior three-fourths, and rather suddenly contracted on the anterior fourth: elytra with regular series of punctures; somewhat indented about the scutel; basal margin with a groove, basal edge much arquated. Length seven-twentieths of an inch. 4. L. MISCULUS.-Thorax indented before and behind the middle and with rather small punctures. Inhabits Louisina. Body black or blackish piceous, with short white hairs: head between the eyes a little indented: rostrum slightly arquated, punctures at its lateral base nearly as large as those of the thorax; thorax with rather small but dense punctures, with a large longitudinal depression on the back, a little impressed and more obvious before the middle and at the base: elytra with series of punctures which at tip are smaller and placed in the strie: region of the scutel indented. Length over seven-twentieths of an inch. It is smaller than L. bardane F., not so densely clothed with hairs, the elytral punctures are more obvious; the thoracic punctures are a little smaller; that species has not the thoracic indentations. It has the rostrum a little longer and more arquated than in the preceding; the thorax has not such large and pro CURCULIONIDES. 277 found punctures, on the side is slightly and regularly curved, not abruptly contracted before, &c. This species was sent to me by Mr. J. Barabino of New Orleans. PISSODES Germ. P. STROBI Peck, [RhygchitRus] Jour. Mass. Agr. Soc. Jan. 1817. P. nemorensis Germar, Species Novae, p. 318. Dr. Harris sent me this insect as the P. strobi, or White pine Weevil of Professor Peck, whose name having the priority must be adopted. ERIRHINUS Schonh. E. MUCIDUS.-Body black-brown with short prostrate yellowish hairs; rostrum slender, linear, arquated, punctured, much longer than the head and thorax: antenne rufous: elytra with rather wide, impressed, densely punctured stria; hairs arranged in small spots. [15] Length one-fourth of an inch. Resembles E. vorax Gyl., but the thorax is more rounded and the elytra have a more truncated appearance. ANTHONOIMUS Germ. 1. A. QUADRIGIBBUS.-Ferruginous; elytra with about four tubercles. Inhabits United States. Curculio quadrigibbus Melsh. Catalogue. Body dull ferruginous; rostrum more than half the length of the body; thorax with three obsolete whitish lines: pleura bilineate, of which one is more distinct: elytra with double series of punctures, the interstitial lines alternately elevated, the two inner ones on each with two or three compressed elevations, of which the posterior one on the inner line is more prominent: posterior declivity paler: anterior thighs two-toothed, the posterior tooth prominent. Length (exclusive of the rostrum) less than three-twentieths of an inch. I have taken this species on the Cratmegus. 2. A. MUSCULUS.-~Dull rufous; scutel and elytral spotted bands whitish. 75 8 CURCULIONIDES. Inhabits United States. Curculio varians Melsh. Catal. Body more or less dull rufous, or piccous, punctured: head piceous: rostrum with elevated lines: antennae rufous: club dusky: thorax piceous, very much crowded with punctures; small recurved distant whitish hairs: scutel oval white: elytra with dilated impressed striae of large punctures; rufous with the edge piceous; two or three undulated, macular, whitish bands of short hairs: beneath piceous: feet rufous. Length, including the rostrum, one-tenth of an inch. Var. a. Obscure piceous, almost black; bands obvious. This varies considerably in its depth of coloring. Subgenus ODONTOPUS nob. Eyes approximate. 3. A. CALcEATUS. — Spine of the anterior thighs robust, denticulated before. Inhabits Indiana. Body black: antennae piceous; clava darker: thorax very densely punctured, rather large, much narrowed before: scutel longitudinal, oblong, sublinear: elytra with profoundly impressed, punctured striae, interstitial lines flattened, densely punctured; anterior thigh with a very prominent robust tooth; anterior to which are small denticulations; intermediate thighs with a small tooth; posterior pair with the tooth obsolete; tibiae, anterior pair much arquated. Length nearly three-twentieths of an inch. This is not uncommon. With the form and habit of the insects of this genus it has approximate eyes. [This is identical with Prionomerus carbonarius Sch.-LEc.] ERODISCUS Schon. E. MYRMECODES.-Black, scutel and line on pectus and postpectus whitish. Inhabits United States. Body black, with numerous slender upright hairs; thorax very convex above: scutel cinereous; elytra convex with slightly impressed striae, punctured: thighs clavate, emarginate and with a large compressed tooth: tibiae arquated at base: anterior pair CURCULIONIDES. 279:nucronate at trp; pectus and postpectus with a longitudinal white line. Length three-twentieths of an inch. [16] Curculio myrmex Herbst. Natursyst. In appearance it has a slight resemblance to a Formica. [Otidocephalus Chevr. is an older name of this genus.-LEc.] BALANINUS Germ, 1. B. PROBOSCIDEUS Fabr. (Rynchwenus.) Rostrum as long again as the body. This seems to be Curculio Daviesii Swederus in Transactions of the Stockholm Society, 1787, and it is probable that the latter name is prior to that of Fabr. 2. B. NASIcUS.-Rostrum not so long as the body or hardly longer, not thicker at base, but proceeding abruptly from the head, rectilinear to the middle, piceous. It is remarkable by having the rostrum at base hardly thicker than in the middle, in consequence of which it appears to proceed abruptly from the head without any gradation. It is the Curculio nucum of Melsh. Catal. 3. B. REcTUs.-Rostrum rectilinear or very slightly recurved to near the tip where it curves downward: antennae very slender. Inhabits Pennsylvania. This is distinguishable by the rectilinear or slightly recurved rostrum. 4. B. NASUTUS.-Body robust: scutel elongated white. Inhabits Pennsylvania. This species differs from prloboscideus F., in being more robust and in having the scutel longer. Schonherr has proposed the name of rostratus for this insect, (in litt.) TYLOMUS Schonh. T. LINEATICOLLIS Say. [Rynchsenus.] Journ. Acad. Nat. Sc. vol. 3, p. 313. Var. a. much smaller. Length exclusive of the rostrum less than one-fifth of an inch. It differs also considerably in the lineations of the thorax, and the alternate elevated, interstitial lines of the elytra are less obvious and not so acutely edged. I have named it provisionally v pa licollis. [Belongs to Rhyssematus Sceh.~LEc.] 280 CURCULIONIDES. ORCHESTES Illig. 1. O. EPHIPPIATUS.-Blackish piceous; elytra each with two yellowish spots. Inhabits Indiana. Body blackish, more or less tinged with piceous, densely punctured: base of the rostrum piceous: elytra striate punctured, a large double yellowish hairy, somewhat common spot before the middle and a transverse abbreviated common band of yellowish hair behind the middle, both on a piceous surface; feet and antennee rufous. Length over one-tenth of an inch. A very distinct species. 2. 0. PALLICORNIS.-Black, antennae rufous with a black tip. Inhabits Indiana. Body black, densely punctured; rostrum lineated and punctured; antennae dull rufous, the club darker black: thorax confluently punctured: elytra with punctured strife, the interstitial lines somewhat rough and flat: thighs with a short acute tooth. Length one-tenth of an inch. [17] Var. a. Tarsi piceous. This species is very abundant. IMIADARUS Schonh. i3. UNDULATUS nob. [RygnchUnus] Journ. Acad. Sc. The thorax varies from sanguineous to black. BARIDIUS Schonh. 1. B. TRINOTATUS.-Covered with white hairs; a black dot on the scutel and near the posterior angle of the thorax. Inhabits United States. Curculio trinotatush. C. - ~-p__- pens/ylvanicus elsh. Catl. Body black, covered with rather short, robust, linear, white prostrate hairs: thorax with the hairs pointing towards the longitudinal middle; at base on each side is a black dot, scutel black elytra with obvious striae; interstitial lines flat and each with about three series of the short hairs. Length three-twentieths of an inch. CURCULIONIDES. 281 The covering of white hairs, with the three denuded spots distinguish this species. I have obtained it in Indiana as well as in Pennsylvania. 2. B. PICUMNUS Herbst. Natursyst. Vol. 7, p. 30, pl. 99, f. 9. This is a common species. The third joint of the antennae is hardly longer than the fourth. The covering of hairs is more dense than in the preceding species. [Belongs to Centrinus Sch. —LEc.] 3. B. PENICELLUS Herbst. Natursyst. vol. 7; p. 29, pl. 99, f. 6F. Much like the preceding, but larger, and the third joint of the antennae is as long again as the fourth. I described it under the name of amictus, but I have little doubt that it is the species described by Herbst. Genus Toxcreus Sch.? holosericeous Sch. Dej. [Also a Centritus.-LEC.] 4. B. UNDULATUS.-Black; elytra with two undulations. Inhabits Mexico. Body black; head with small punctures, sparse on the vertex, more dense on the rostrum: rostrum arquated: thorax a little compressed each side on the anterior margin: with rather large confluent lateral punctures and smaller sparse ones on the disk: elytra with capillary impunctured striae, becoming rather dilated at tip; interstitial spaces flat, with numerous transverse lines, a dilated indentation or undulation before the middle, and rather behind the- middle, a less obvious indentation near the tip. Length over one-fifth of an inch. Var. a. Body dark brassy polished; undulations of the elytra obsolete. Length less than three-twentieths of an inch. The pectoral groove is very distinct, but the antennae are too robust, and the club is too obtuse to be placed in the genus Ccittrinus, and the fusiform club of 3ladarus will not permit a reference to that genus. 5. B. STRIATUS.-Interstitial lines hardly wider than the strie. and with a single series of punctures. Inhabits United States. Body black, punctured: rostrum a little prominent at the insertion of the antennae on each side; more or less transversely in 282 SCURCULIONIDES. ldented between the eyes antennae dark piceous, inserted beyond the middle of the rostrum; second joint rather long; third not longer than the fourth; club obtuse; thorax subconic with approximate orbicular punctures and a glabrous middle line; basal edige deeply sinuous [18 ] elytra with deep punctured striae; inrerstitial lines hardly broader than the strive and each with a single series of rounded punctures: anal tip naked, densely punctured: pectus slightly indented: anterior feet not very distant. Length one-fifth of an inch. This is the true strictus of Ielsheimer's Catalogue; the following species which I formerly confounded with it, is different. 6. B. INTERSTITIALIS nob. (RyLnckhnus) Journ. Acad. Nat. Sc. 3, p. 314. Much like the preceding, but the thorax is more rounded being more abruptly contracted before and the punctures are nmuch smaller. The interstitial lines are broader and their punctures have a transverse rugulous appearance. 7. B. TRANSVERSUS.-Thorax at the scutel obtusely lobed; scutel transverse. Inhabits Missouri. Body black, punctured: head transversely indented between the eyes: antennae obscure piceous, inserted beyond the middle of the rostrum; third joint but little longer than the fourth: club ovate: thorax rather abruptly contracted before; punctures numerous, rather dense; middle lobe of the base very obtusely rounded: elytra with deep, punctured strie; interstitial lines with close set, almost confluent punctures; third line with more than one series; exterior and posterior edges piceous: tibiae a little tinged with piceous: anal segment naked, punctured. Length over one-fifth of an inch. In the form of the thorax it resembles intcrstitalis nob., but the punctures are much larger, the posterior lobe is more rounded, and the punctures of the interstitial lines are rounded. CRYPTORHYNCHUS Illig. 1. C. ANAGLYPTICUS.-Thorax bilineate each side; elytra with elevated lines; a fulvous spot on each at base. Inhabits United States. Ourculio anaglypticus Knoch in MIelsh. Catal. CURQULIONIDES. 283 Body blackish piceous, punctured; eyes small; autenna pi'eW; rostrum sulcated; thorax lobed at the eyes; subinequal, soraewhat rugose; two whitish longitudinal lines on each side diverging before and behind with numerous minute cinereous Ihairs, and with two or three oblique uniting lines; elytra triang-,iar much wider at base than the thorax and subacute at tip, each, with four elevated acute strie, the exterior ones united at tip; interstitial grooves dilated, concave, with a double series of transverse punctures, an oblique, fulvous, oval spot at the humeral base, tip brown; epipleura a series of punctures, base hirsute with a double series; feet varied with cinereous hair; thighs with a robust, prominent spine beneath near the middle, and a smaller one nearer the tip. Length from the front to anus less than one fifth of an inch. Found many specimens ascending a hickory tree (Juglans) in the fruit of which they deposit their eggs, in the latter part of June and beginning of July. [Belongs to Conotrachelts Sch.-LEc.]'. C. ELEGANS.-Piceous brownish; elytra with a paler, more,r less dilated space behind. Inhabits United States. cJurculio elegans Melsh. Catal. Body dull piceous, more or less varied with brown or blackish: rostrum sulcated, carinate, piceous: antennae rufous: thorax lobed at the eyes; punctured; an obsolete, oblique, cinereous line eachl side proceeding to the posterior angles: elytra with four somewhat elevated, acute lines, the exterior ones uniting behind; interstitial spaces wide, with double series of punctures, obsolete behind; behind the middle is a more or less dilated common space, narrower at the suture than on the lateral margin; on this spot the inner elevated [19] line is interrupted, and the line is also depressed or interrupted towards the base; thighs two-toothed, somewhat annulated with piceous and blackish. Length less than one-fifth of an inch. Var. a. Somewhat cinereous. Var. b. Paler piceous; larger. I have obtained this species in June on Pinus rigida. The body is more oblong than that of anaglypticus; the humerus is less prominent. It occurred in New Jersey, Florida, and the 284 aCURCULIONIDES. varieties in Missouri. Can this be C. aratus G-ermar? His d.scription does not altogether agree with my specimens. [Also a Conotrachelts.-LEc.] 3. C. FOVEOLATUS.-Black, with large, profound punctures elytra with yellowish spots. Inhabits United States. CurcuUo foveolatus Knoch in Melsh. Catal. Body black, with dilated punctures; head with dense, smail punctures; a frontal indentation, and yellow spot; rostrum robust, moderate, arquated, punctured like the head: antennae jointed; first joint hardly reaching the eyes; thorax with three small yellowish spots and one before; elytra with regular series of large quadrate punctures; several small yellowish spots and: large, irregular one behind: feet unarmed. Length less than one-fifth of an inch. This insect differs so essentially from the characters of thigenus as given by Schonherr that it may be separated under thefollowing name and characters:Genus Tyloderma.-Antennae rather short and robust, elevenjointed; rostrum moderate, rather robust, arquated; pectus grooved; postpectus entire; thorax lobed at the eyes; tarsi spongy beneath: elytra covering the tip of the abdomen. From Cryptorhynchus it is distinguished by the number of joints in the antennae, and in this respect it agrees with Lypr.s, Tapinotus and Ulosomus Sch., but the former has the tarsi conlpressed, and in Ulosontus the recipient groove is extended upon the postpectus. I have not seen the insect which forms the latter genus, but its characters seem to agree better with the above described than any other. 4. C. BISIGNATUS.-Elytra with an oblique whitish spot rather before the middle. Blackish brown: body covered with small scales, which are more erect on the thorax; thorax extended on the posterior middle at the scutel, and acute: elytra with about four elevated lines and intermediate double series of punctures' an oblique, oval, whitish spot rather before the middle. Inhabits Indiana. Length less than three-twentieths of an inch. [(C. obliquefasciatus Sch. is the same.-LEc.] CURCULIONIDES. 285 5. C. POSTICATUS nob. Journ. Acad. Nat. Sci. [Is a Conotrachelus.-LEC.] 6. C. PAROCHUS Herbst. (Curculio) Natursyst. Varies in size. I have a specimen from Missouri, of which the length is nearly one-fourth of an inch. The recipient groove in this species extends upon the postpectus and terminates between the intermediate feet. 7. C. ARGULA Fabr. (Rhyncheenus) Syst. Eleut. Curculio nenuphar Herbst. Natursyst. R. cerasi Peck, Jour. Mass. Agr. Soc. Jany. 1819. This also varies much in size, and depredates on the plumb and peach and other stone fruits. My kinsman, the late excellent Wim. Bartram, informed me that it also destroys the European Walnut in this country. [ 20 ] Subgenus CAMPTORHINUS Sch. 8. C. TUBULATUS.-Thorax tubular before; interstitial lines with a series of dusky punctures. Inhabits Indiana. Body black, punctured: rostrum rather slender, arquated; between the eyes indented: thorax densely punctured, anteriorly abruptly contracted so as to be almost tubular; elytra with deeply impressed, punctured striae; interstitial lines flattened, and with a series of punctures, each furnishing a recurved, whitish hair. Length under one-fifth of an inch. I place this small species in the present subgenus, from the character of the _eyes, which are very large, remote above and closely approaching beneath. CEUTORHYNCHUS Schupp. 2. C. ACEPHALUS nob. (Falciger) Journ. Acad. Nat. Sc. 3, p. 309. The common whitish line at base of the elytra is rather less obvious than that of C. pericarpius F. [Belongs to Coeliodes Sch.-LEc.] 2. C. CRETURA Herbst. (Curculio) Natursyst. 7, p 70, pl. 100, fig. 5, C. I mentioned this species under the name of 4-spinosus in the Journ. Acad. Nat. Sc. 3, p. 310. [Belongs to Phytobius.-LEc.] 286 CURCULIONIDES. 3. C, TRIANGULARIS.-Thorax with two obtuse tubercles: elytra with a common subtriangular, whitish spot at base. Inhabits Indiana. Body robust, short: densely punctured: antenne bright rufous, club blackish: rostrum with somewhat elevated lines; thorax with dense, rather large punctures; a longitudinal indented line in which are white hairs; an obtuse tubercle each side a little behind. the middle: elytra with deeply impressed stripe, and rather large punctures; interstitial lines transversely rugose; at; base is a common elongated whitish triangular spot; lateral edge, behind the humerus, white; beneath with scale-like, white hairs; thighs unarmed. Length about three-twentieths of an inch. This is longer thanpericarpius F. which it much resembles, but the common spot is much more dilated behind and triaigular. 4. C. INT^QUALIS.-Thorax 4-tuberculate, and bidentate before., Inhabits Indiana. Body brown, short and robust: thorax with an indented line, which so indents the anterior edge as to exhibit two dentiuniations in that part; each side of the middle is an obtuse rather large tubercle, and still more lateral and a little posterior is a less obtuse tubercle: elytra with the alternate interstitial lines more elevated. Length over one-tenth of an inch. I obtained many specimens resting upon a newly constructed fence in the spring. MONONYCHUS Schupp. M. VULPECULUS Fabr. Schonh. On the flowers of the Ceanothus americanus L. and Verbascurr thapsus L. in July. ZYGOPS Schonh. 1. Z. QUERCUS.-Body black, covered with white scales; rostrum a little curved [ 21] towards the base; front between the eyes very narrow: elytra striated, at tip a little reflected: thighs not obviously emarginated, nor toothed. Length over one-tenth of an inch. CURCULIONIDES. 287 This is the Curculio quercus Melsh. Catal. Belongs to the subgenus Copturus Sch. 2. Z. OPERCULATUS nob. (Cryptorihynchus) Jour. Acad. Nat. Sci. 3. Z. OCULATUS nob. ( Cryptorhlynchus) Jour. Acad. Nat. Sci. CENTRINUS Schonh. C. SCUTELLUM ALBUM.-Punctured; with scales; scutel white. Inhabits United States. Curculio scutellum album Knoch, in Melsh. Catal. Body black, densely punctured, and with short pale yellowish or whitish scales; head minutely punctured: rostrum long, punctured, with a short, impressed line at base: antennae piceous: thorax with dense orbicular punctures covering the whole surface; the tip of the posterior middle white at the scutel: scutel white: elytra with deeply -impressed striae; interstitial lines flat. broad, densely punctured: beneath with whitish metallic scales, much more dense than on the superior surface. Length over three-twentieths of an inch. Var. a. Over one-fifth of an inch, the rostrum is more rectilinear towards the tip. Var. c. Elytra with a slight piceous tinge. I have taken this insect in Pennsylvania, Indiana and Missouri. The variety is from Arkansaw. CIONUS Clairv. C. SCROPHULARI, Auct. My specimen is so much like the European individuals that it can hardly be considered to vary from them. RHYNCHOPHORUS Herbst. 1. R. PRAEPOTENs.-Thorax with three black vittae. Inhabits Arkansaw. Body black, covered with dense, prostrate, cinereous hairs: rostrum shorter than the head and thorax; thorax with three black vittae, extended behind at the scutel: elytra with double series of punctures; a black vitta on the middle of each, and a narrower subsutural one. Length more than three-fifths of an inch. This is a fine insect. 288 CURCULIONIDES. [Schonherr (3, 62) has described a Lixus prepotens Say, which is evidently this species, he afterwards mentions Say's description (4, 988) as being of an unknown genus: the insect is unknown to me, unless it should be identical with Cleonus trivittatus Say, Cure. 10, (ante 270); the size given is different, but this is hardly sufficient to warrant us in continuing them as distinct.LEC.] 2. R. INTERSTITIALIS.-Thorax nearly as long as the elytra: interstitial lines with a series of punctures. Inhabits United States. Body black brown, with large punctures: rostrum linear, a little curved, punctures large at base, smaller at tip; base grooved above; head punctured, small; antennae rufous: thorax almost as long as the elytra, with double series of punctures; interstitial lines not rounded, and with a series of small punctures: thighs unarmed; tibiae with hair inside, and mucronate at tip. [This and all the following species belong to Sphenophorus Sch.-LEc.] 3. R. PERTINAX.-Thorax with three vittae; elytra regularly striate. Inhabits Florida. Calandra pertinax Olivier, Ins.; Sch6nh. Body black, more or less covered with a dense, dull yellowish crust: rostrum arquated compressed: with an elongated groove at base, above attenuated [22] at the tip; thorax particularly covered with the crust, which is punctured, leaving only three elevated, impunctured vitt%, of which the intermediate one is wider before the middle and the lateral ones behind the middle: elytra with slender, acute strive, in which are very small punctures; interstitial lines equal, regular, a little convex. Length nearly eleven-twentieths of an inch. 4. R. TRUNCATUS.-Thorax with three vitta; elytra with the alternate interstitial lines more obvious. Inhabits Missouri. Body black, partially covered with a dirty cinereous crust; punctured: rostrum arquated, compressed, with an elongated groove at base above, attenuated at tip: thorax with three elevated, punctured vittae, of which the intermediate one is dilated CURCULIONIDES. 289 suboval before the middle, and the lateral ones have an obvious branch extending to the posterior angles; elytra almost truncate behind; striae numerous; interstitial lines slightly punctured, the alternate ones more obvious; two or three striae between the interstitial lines. Length half an inch. Much like R.pertinax, but the broader thoracic vittae, the more numerous strie, unequal interstitial lines and almost truncated elytra distinguish it. 5. R. CICATRICOSUS.-Thorax with three vittae; elytra with an elevated line and obsolete dilated indentations. Inhabits Louisiana. Body black, partially covered with a cinereous crust or pellicle; rostrum arquated, compressed, with a slight groove at base above; thorax with three elevated, dilated, irregular impunctured vittae, the lateral ones have an obvious branch extending to the posterior angles: elytra with numerous strias a more obvious, elevated, subsutural, impunctured, interstitial line; numerous dilated, obsolete dots or slight undulations. Length nearly nine-twentieths of an inch. Resembles the preceding as respects the number of striae of the elytra, but their surface is rendered a little irregular by indented dots or undulations which are obsolete; the thoracic vittae are a little truncated at tip. 6. R. VENATUS.-Thorax trilineate, and with discoidal punctures; elytra with capillary striae; surface a little inequal. Inhabits United States. Body black opake, more or less, and particularly the thorax, covered with a dull cinereous deposite; rostrum with discoidal punctures at base; compressed, a little arquated; a dilated impressed line at base above; thorax with discoidal, equal punctures; trilineate, the intermediate line slender, the lateral ones undulated, a little broader, punctured: elytra with distinct, acute striae, punctures large but not profound, obsolete, excepting each side and at base; interstitial lines alternately and very slightly more prominent; surface slightly inequal. Length over three-tenths of an inch. Smaller than the preceding species, and the thoracic elevated' lines are much more slender. 19 290 CURCULIONIDES. 7. R. RECTUS.-Thorax with three abbreviated raised lines, and dense discoidal punctures; elytra with series of punctures. Inhabits United States. Body black, opake, covered with a dull cinereous coating; rostrum compressed, arquated, punctured at base, and with a dilated, impressed line at base above; antennae piceous: thorax with close set, discoidal punctures; three elevated lines or narrow vittae, of which the intermediate one is abbreviated into an irregular spot before the middle, or almost obliterated by the punctures behind, the lateral ones are rectilinear, a little oblique and obliterated before by [23] the punctures: scutel polished; elytra with regular series of rather large punctures, the four interstitial lines next the suture, on each, more elevated than those of the middle. Length about three-tenths of an inch. In comparison with R. venatus the thorax is much more densely punctured, and the lateral vittae are rectilinear. 8. R. IMMUNIS.-Naked; thorax profoundly punctured, excepting on the middle and each side of the middle. Inhabits Louisiana. Body black, slightly polished, not covered by any deposite: rostrum compressed, arquated, with minute punctures at base, and a profound impressed line at base above: antenna piceous: thorax with numerous profound punctures; a broad impunctured, longitudinal, hardly raised space each side of the middle, extending to the anterior and posterior margins, and a transverse impunctured space before the middle: scutel polished: elytra with regular, somewhat double series of punctures; interstitial lines regular, convex, alternately a little wider, and wider than the diameter of the punctures. Length over three-tenths of an inch. The raised surfaces of the thorax on each side of the middle, and a little before the middle, are but little elevated, impunctured; the thoracic punctures are profound and not dilated, particularly a little group on the middle of the anterior margin, and a more extensive double one behind the middle. 9. R. PLACIDUS.-Thorax densely punctured; elytra with punctured strie; feet dull rufous. Inhabits United States. CURCULIONIDES. 291 Body black, punctured: rostrum arquated, compressed, piceous towards the base; with an impressed, punctured line; antennae piceous: thorax with dense punctures, destitute of obvious elevations: scutel concave, polished: elytra with series of punctures rather wider or as wide as the interstitial lines, which also have a series of small punctures; tip dull piceous: feet rufous, with black incisures. Length about three-tenths of an inch. In general shape it resembles R. inmmnis nob., but the thorax has not very obvious elevations and is more generally punctured; the punctures of the elytral series are larger and the interstitial lines have a series of small punctures; the feet also are rufous. 10. R. INAEQUALIS.-Thorax with numerous discoidal punctures; elytra with the punctures in the series remote. Inhabits United States. Body black, more or less covered with a dirty brown pigment or crust, punctured: rostrum moderate, compressed, arquated, with an impressed line at base; thorax with discoidal punctures and from one to three slight elevations: elytra with obvious striae, in which are remote punctures; interstitial lines with oblong, longitudinal punctures; sutural line with a series of small close set punctures. Length nearly one-fourth of an inch. The elytral punctures are remote in the striae, and those of the interstitial lines are much elongated. 11. R. COMPRESSIROSTRIS nob. (Calandra) Journ. Acad. Nat. Sc. 1823. Amer. Ent vol. 1, pl. 9. Gemar, Coleopt. Sp. Nov. 1824. [24] COSSONUS Clairv. 1. C. CORTICOLA.-Black; thorax impressed behind; rostrum with an indented line between the eyes, and another on the middle of the rostrum. Inhabits United States. Curculio corticola Melsh. Catal. Body deep black, immaculate, punctured; head, punctures minute and remote upon the vertex and becoming larger and more dense towards the tip of the rostrum; a profoundly indented dilated line between the eyes; rostrum dilated towards 292 CURCULIONIDES. the tip, piceous: thorax with a transverse obtusely indented line on the anterior submargin; punctures large separate profound orbicular, minute upon the anterior margin and confluent upon the posterior and lateral margins: middle of the base widely indented and with a carinate line in the indentation: elytra profoundly striate, strie with large profound transverse punctures. Length, base of rostrum to tip of elytra more than three-twentieths of an inch. A species equally common in Missouri and Pennsylvania. I have observed it to inhabit in considerable numbers under the loose bark of yellow Pine trees in October. 2. C. PLATALEA.-Thorax impressed behind; rostrum punctured; thorax rather short. Inhabits United States. Head punctured, a little indented transversely between the eyes; rostrum dilated towards the tip, punctured: antenna piceous; thorax with the punctures not very profound, distant, irregular; a basal indentation, with a slight, obtuse carina in the middle of the indentation: rather short, much rounded on the sides; elytra, stria with large punctures; tarsi obscure piceous. Length nearly one-fourth of an inch. The thorax is proportionally shorter than that of the corticola, the punctures are less deeply impressed, and the rostrum is not obviously indented longitudinally. It varies in having the tibiae obscure piceous. DRYOPHTHORIUS Schupp. D. CORTICALIS.-Thorax with dilated punctures; elytra with dilated striae. This is so much like D. lymexylon Fabr. that it is considered the same: but on comparing with my European specimens, I find it smaller and the punctures of the head are obsolete, whereas in the European specimens they are large and obvious. This is the Curculio corticalis Payk. of Melsh. Catalogue. [25] CURCULIONIDES. 293 SUPPLEMENT. ERIRHINUS Sch. E. EPHIPPIATUS.-Body yellowish-rufous, with numerous prostrate hairs: thorax with a slightly indented, longitudinal line: elytra with rather wide impressed striae, containing large punctures; near the base a common transverse black spot, connected along the suture with another transverse, triangular black spot: beneath, excepting the feet, dusky: thighs unarmed. Inhabits Indiana. Length one-tenth of an inch. 2. E. RUFUS.-Body pale rufous, with numerous, oblong, whitish prostrate scales: rostrum longer than the head and thorax, arquated, linear: elytra with impressed strie: suture, near the scutel, indented: scutel not very obvious. Inhabits Missouri. Length one-tenth of an inch. ANTHONOMUS Germ. 1. A. ERYTHOPTERUS.-Body black-brown: rostrum very slightly curved, as long as the head and thorax, thickly punctured: antenna rufous: head not obviously punctured with white, prostrate hair beneath; a puncture rather above the line of the eyes: thorax densely punctured: scutel with prostrate white hair, rounded: elytra beyond the middle and excepting at the suture, dull rufous; with impressed punctured striae; and with scattered rather short hairs each side: stethidium with prostrate, white hair. Inhabits Pennsylvania. Length over one-tenth of an inch. Curculio erythropterus Melsh. Catal. Mr. Schonherr informs me that Dejean has given to this species the name of suturalis. 2. A. SIGNATUs.-Body with numerous, prostrate, white hairs: rostrum longer than the head and thorax, slightly arquated, linear, lineated: scutel oval; elytra sanguineous, with punctured, impressed strie; region of the scutel to the middle of the 294 CURCULIONIDES. suture, and band of three large, unequal spots behind the middle, brown. Inhabits United States. Length less than one-tenth of an inch. [26] I adopt the name proposed by Schonherr, in preference to that of sanguinipennis, under which I described it. BALANINUS Germ. B. CONSTRICTUS nob. (Rliyncheenus) Journ. Acad. Nat. Se. vol. 3, p. 313. [Belongs to Erirhinus.-LEc.] TYCHIUS Germ. Sch. 1. T. ARATUS.-Body entirely covered with pale olivaceous, dense, elongated or rounded scales: rostrum as long as the head and linear; scales like robust hairs; transversely indented over the insertion of the antenna; a longitudinal impressed line; tip naked, rufous: thorax with the hair-like scales converging backwards to the dorsal line: elytra with indented striae, punctures are not visible; with densely imbricated, rounded scales: middle of the interstitial lines with a series of prostrate scale-like hairs: thighs unarmed, emarginate. Inhabits Missouri. Length three-twentieths of an inch. Can this be C. penicellus Herbst? 2. T. AMOENUS.-Body dark brownish, with minute scales; rostrum somewhat arquated, as long as the head and thorax, dull rufous: thorax narrowed considerably before; base not undulated; elytra varied with whitish: feet unarmed, dull rufous: tarsi black. Inhabits United States. Length one-tenth of an inch. BARIDIUS Sch. 1. B. NIGRINUS.-Body black, densely punctured: rostrum arquated, linear; as long as the head and thorax; thorax with rather large, dense punctures, dilated and rounded at the scutel; scutel as wide as long, rounded behind: elytra with impressed, narrow, punctured striae, and much broader flat interstitial lines, on which are regular, dilated, transverse punctures. CURCULIONIDES. 295 Inhabits Pennsylvania. Curculio nigrinus Melsh. Catal. Length one-tenth of an inch. 2. B. INTERSTITIALIS nob. (Rhynchenus) Jour. Acad. Nat. Sc. vol. 3, p. 314. 3. B. SCOLOPAX.-Body dark chestnut: rostrum longer than the head and thorax, slightly curved, linear: thorax conic, with small, numerous punctures: elytra deeply impressed, [27] not obviously punctured, a little shorter than the abdomen. Inhabits Missouri. Length over one-tenth of an inch. 4. B. ACUTIPENNIS.-Body brassy, highly polished, punctured: rostrum as long as the head and thorax, arquated, linear: thorax, punctures profound but not close set; base undulated; elytra with acute, deeply impressed, impunctured striae, which, on the posterior declivity are dilated so as to make the interstitial lines acute, and elevated; tip of the elytra on the middle with an elevated, acute tooth. Inhabits Mexico. Length one-tenth of an inch. CRYPTORHYNCHUS Illig. 1. C. RETENTUS.-Body covered by very short, dense, prostrate hair; rostrum longer than the head and thorax; a little arquated, punctured and on the sides linedted: thorax with two whitish undulated vittee: scutel orbicular: elytra with four elevated, acute, interrupted lines, between which are double series of impressed punctures: elevated lines obsolete on the depressed tip: thighs emarginate towards the tip and bidentate. Inhabits Mississippi. Length less than three-tenths of an inch. It seems to'be related to C. obtentus Herbst? [Belongs to Conotrachelus Sch.-LEc.] 2. C. LINEATICOLLIS nob. (Rynchenus) Journ. Acad. Nat. Sc. vol. 3, p. 313.-As this has evidently the pectoral groove it cannot belong to the genus Iylomus, the anterior feet also are distant. 3. C. PALMACOLLIS.-Thorax with numerous small grooves. 296 CURCULIONIDES. Inhabits United States. Rostrum longer than the head and thorax, with elevated lines: antennae sanguineous: thorax with numerous small grooves converging at the dorsal line: elytra with double series of large punctures, the intervening lines elevated, acute: thighs with an acute tooth. Inhabits United States. Length one-fifth of an inch. Allied to lineaticollis N., but the punctures of the elytra [28] are larger; body smaller. [Vide ante, p. 279.-LEc.] 4. C. CRIBRICOLLIS.-Body black; with numerous, very short hairs: rostrum as long as the head and thorax, transversely indented between the eyes: antennae rufous: thorax much narrower before; the whole surface covered by large concave punctures, without any very flat space between them: elytra much wider than the thorax, with rather wide, impressed strive, in which are close set punctures. Inhabits Mississippi. Length nearly three-twentieths of an inch. [Is a Conotrachelus.-LEc.] 5. C. OBLIQUUS.-Body covered with orbicular scales, which are dusky, black and white: thorax with three distinct black dots, placed transversely: scutel small, black: elytra triangular; region of the scutel, extending from the humerus to the suture, dusky, in which are about two black spots; then a very oblique cinereous band; then a dusky band on the middle; then a cinereous band; tip dusky; with punctured striae. Inhabits Louisiana. Length less than one-fourth of an inch. Sch6nherr informs me that Dejean has given the name of umbrosus to this species, [and it is so described in his work 4, 116.-LEc.] 6. C. FERRATUS.-Body black, with minute, orbicular scales: thorax confluently punctured: rostrum not quite as long as the head and thorax, cylindric, hardly arquated: elytra striate, not visibly punctured, with numerous, yellowish-brown, small, un CURCULIONIDES. 297 equal spots; interstitial lines rounded, somewhat unequally elevated. Inhabits Louisiana. Length less than three-twentieths of an inch. BAGOUS Germ. 1. B. MAMILLATUS.-Cinereous; elytra tuberculate. Inhabits Missouri. Body cinereous: elytra, each with two tubercles behind the middle, placed obliquely, a smaller one on the middle and the humerus with a small tubercle: thighs clavate: tibiae much arquated-towards the tip, and at tip acute, with [29] rather long, rigid hair on their inner side. Length nearly three-twentieths of an inch. 2. B. SIMPLEX.-Covered with dusky, somewhat olivaceous, orbicular scales: rostrum shorter than the head and thorax: thorax with a slight appearance of an impressed band on the middle?; elytra with an impressed striae; punctures not visible; striae obsolete on the posterior declivity, excepting the two exterior ones; humerus rather prominent: tibias, intermediate pair more arquated. Inhabits United States. Length over one-tenth of an inch. Schonherr informs me that Dejean has given the name of egenus to this species. 3. B. AREUS. —Body dull brassy: rostrum short, thick: thorax not obviously punctured above, lateral punctures not deeply impressed: scutel distinct: elytra with strise of punctures at base, none beyond the middle: feet rufous: thighs slender. Inhabits United States. Length one-tenth of an inch. Sch6nherr has separated this species under the generic name of Analcis. Dejean proposed for it the specific name of sereus, I formerly described it under the name of semipunctatus. TYLODES Sch. Subgenus ACALLES Sch. T. CLAVATUS.-Body brown, covered with short, upright, clavate bristles: rostrum moderate, arquated: thorax with the 298 CURCULIONIDES. punctures visible: elytra with striae of punctures, the clavate bristles on the interstitial lines. Inhabits Florida. Length nearly one-tenth of an inch. CEUTORHYNCHUS Schiipp. C. CURTUS. —Body short, robust, blackish: rostrum as long as the thorax, arquated, cylindrical: thorax narrowed before, with rather large numerous, impressed punctures; a transverse, impressed line on the anterior margin; and a longitudinal, impressed line, more obvious at base; each side rather behind the middle is a smaller, subacute tubercle: [ 30] elytra, region of the scutel impressed; striae profound and as wide as the interstitial lines: thighs rather slender, unarmed. Inhabits United States. Length less than one-tenth of an inch. [Is a Coeliodes.-LEC.] CLEOGONUS Sch. C. SEDENTARIUS.-Body with minute scales, of a blackish or dusky color, but with a few irregular, small, whitish patches, of which the largest is on the posterior declivity of the elytra, extending by two branches to the tip: thorax with rather large punctures: scutel small, rounded, white: elytra, striae hardly impressed, with very large, not close set, longitudinal punctures: thighs with a white annulus near the tip: tarsi with silvery hairs, sericeous. Inhabits Florida. Length less than one-fifth of an inch. [Placed by Sch6nherr in Pseudomus.-LEC.] COSSONUS Clairv. C. MULTIFORUS.-Body blackish-chestnut: rostrum moderate, rather robust, a little arquated, with large punctures, and with the antennae, rufous: thorax long, with very large, crowded punctures: elytra with a striae of large punctures, wider than the interstitial lines: feet simple, rufous. Inhabits Mexico. Length over one-tenth of an inch. CURCULIONIDES. 299 RHYNCHOLUS Creutz. Sch. C. LATINASUS. —Body glabrous, blackish chestnut: rostrum broad, short, a little narrower in the middle, confluently punctured: thorax with numerous, profound and not very dense punctures; somewhat depressed; sides regularly arquated; elytra, strife about equal to the interstitial lines, impressed; punctures regular, profound, dense: thighs abruptly clavate, unarmed. Inhabits Florida. Length one-tenth of an inch. 300 INSECTS OF LOUISIANA. New species of North American Insects, found by Joseph Barabi o, chiefly in Louisiana. New Harmony, Indiana, January, 1832. COLEOPTERA. BUPRESTIS Linn. B. THUREURA.-Scutel transversely elongated. Inhabits Louisiana. Body brassy greenish, with dilated, unequal, impressed punctures: vertex with an acute, longitudinal, impressed line: antennae green: thorax with the punctures more confluent each side, and a longitudinal, glabrous line: scutel transversely elongated, subbilobate: elytra with punctured strie; interstitial lines irregularly punctured and with unequal and irregular glabrous spaces: edge not obviously serrate; tip with a narrow subemarginate truncation: beneath cupreous, anal segment emarginate. Length less than four-fifths of an inch. The breadth of the scutel is considerably more than double its length. It resembles lurida F. (which is corrosa Dej.) but the extraordinary latitude of the scutel distinguishes it; that species has also bidentate elytra, and a tridentate anal segment. [Belongs to Poecilonota.-LEc.] DERMESTES Fabr. D. NUBILUS.-Thorax with ferruginous hair and black dots; elytra clouded with gray and black. Inhabits United States. Body black, with dense, short hair; head, hair mixed ferruginous and gray: antennae rufous: thorax, hair mixed [4] ferruginous and gray, with numerous, orbicular, black dots, rather larger behind and less orbicular: elytra marbled with grayish or cinereous hairs; beneath densely covered on the postpectus and venter with prostrate white hair: a small black spot each side of the former and a lateral one on each ventral segment: feet dusky, an undulated whitish band on the thighs. Length about three-tenths of an inch. This is one ofK our two species that are referred to the murinus F. My European specimens of that species are much mutilated, INSECTS OF LOUISIANA. 301 but the puncture upon the middle of each of the two posterior ventral segments is very obvious, and does not exist in the present insect. I have found it in Florida and Pennsylvania. Dr. Pickering sent me an individual from Salem, Massachusetts. It resembles marmoratus nob., which is a much larger insect and has the two ventral punctures like murinus but smaller. [The ventral punctures mentioned are not specific but sexual characters.-LEc.] ATEUCHUS Fabr. A. HUMECTUS.-Blue-black, glabrous, impunctured; elytra with minute striae. Inhabits Mexico. Body black with a decided tinge of blue or violaceous, impunctured, glabrous, polished: head simple, bidentate at tip: antenna cinereous-black, dull ferruginous at base: thorax simple, rather convex: elytra somewhat convex, striee acute but remarkably slender and slightly impressed, not visible to the unassisted eye. [5] Length nine-twentieths of an inch. Much smaller than volvens Fabr., which it resembles much in the form of the head, but the present species is polished and entirely impunctured. [Belongs to Canthon.-LEc.] TROX Fabr. T. AQUALIS.-Elytra simply striate, the interstitial spaces convex with ferruginous fascicles. Inhabits United States. Body brown-black, punctured: palpi and antennae rufous: thorax not deeply impressed along the middle: elytra regularly and simply striated: interstitial lines equal, a little convex, with oblong fascicles of ferruginous hair; feet black-piceous. Length one-fourth of an inch. This species inhabits various parts of the Union, and I received a specimen several years since, from Dr. Melsheimer, under the name I have adopted. It resembles arenarius F. of which however the alternate interstitial lines are more elevated. 302 INSECTS OF LOUISIANA. LAMIA Fabr. L. CRYPTA.-Clothed with dark ferruginous, prostrate hair. Inhabits Louisiana. Body densely covered with short, prostrate, dark reddish ferruginous hair, concealing the punctures: antennae not longer than the body, joints gradually diminishing in [6] length, eleven in number, the terminal ones with a gray basal annulus: thorax with the anterior and posterior diameters equal, with a tubercle, or short, obtuse, spine each side: elytra with the slight punctured series almost concealed by the hair; a sutural strise obliterated at base, but passing around the tip and uniting with a stria on the exterior margin, which reaches the base; tip rounded. Length three-fifths of an inch. I have seen no other specimen than the individual sent me by Mr. Barabino. [It belongs to the genus Stenosoma Muls., and was described by Haldeman as Ataxia sordida, Trans. Am. Phil. Soc. 10, 56.LEC.] ALTICA F. [Illiger.] 1. A. EXAPTA.-Dark-green; thorax with a transverse line; feet tinged with piceous. Inhabits Louisiana. Body oblong-oval, dark-green, sometimes with a tinge of blue: head not obviously punctured: antennae tinged with piceous, particularly at base: mouth somewhat piceous: thorax not obviously punctured, with a tinge of brassy, narrower than the elytra, a little indented each side before the middle, and on the posterior submargin an indented, obtuse line, not very profound, extending each side to the lateral margin where it curves anteriorly and is lost in the depressed edge: scutel somewhat violaceous: elytra, distinctly punctured on the basal half; and having a slight brassy tinge: beneath greenish-black, more or less, but always slightly, tinged with brassy: tibiae and tarsi a little tinged with piceous. Length three-twentieths of an inch. [ 7] In comparison with the chalybea Illig. this is smaller and more slender; the color more greenish, though equally dark; the tho INSECTS OF LOUISIANA. 303 rax is narrower in proportion to the width of the elytra, and the impressed line is much less profound. 2. A. OCREATA.-Pale honey-yellow; antenna, tibiae and tarsi black. Inhabits Louisiana. Body pale honey-yellow; antennae, excepting the first and second joints, black; thorax on the posterior submargin having a transverse groove, which does not reach the lateral margin, but at its extremities it is abruptly reflected to the posterior edge; elytra destitute of strife; feet with the knees, tibiae, and tarsi black. Length three-twentieths of an inch. Many species have the groove on the posterior submargin of the thorax, such as ignita Illig. helxines Fabr., &c. but in the present species this groove, at each of its extremities, is abruptly turned backward and terminates at the posterior edge of the thorax. HEMIP TERA. PENTATOMA Oliv. 1. P. BIFIDA.-Metasternum elevated and bifid at the tips. Inhabits Louisiana. Body oval, pale ochre-yellow, with the impressed punctures dusky: head very short, wide and obtuse: antennae, second joint rather larger than the third; last joint rather [8] longer than the penultimate: thorax, posterior angles rounded, not prominent; punctures distinct, very obvions; an impressed submarginal anterior line, curving backward towards the posterior angles, and another near the edge of the anterior emargination: scutel, punctures remote; white at tip; hemelytra, punctures nearer to each other: tergum brownish, margin paler: beneath paler than above; intermediate and posterior pairs of feet widely separated transversely by the metasternum (Kirby) which is more prominent than the coxe, impunctured, bifarious at each extremity, anteriorly terminating midway between the anterior and intermediate feet and receiving the extremity of the very short promuscis, posteriorly receiving the prominent point of the epigastrium: venter with an obtuse slightly elevated carina. Length over two-fifths of an inch. 304 INSECTS OF LOUISIANA. The species in which this character of the elevated metasternum occurs, and in which the tarsi have the usual number of joints, may be distinguished as a subgenus under the name of Ascra. [Belongs to Edessa, and is probably one of the Mexican species described by the older authors.-UHLER.] 2. P. TENEBROSA.-Blackish; antennae and feet varied with white. Inhabits Louisiana. Body densely punctured, blackish: head narrow, long, acute at the tip: eyes prominent: antennae, second and third joints equal; all the joints white at their bases excepting the first: rostrum yellowish, terminating between the posterior feet: thorax with prominent, acute spines at the posterior angles, inclined a little forwards; elevated behind, anterior angles somewhat truncate, not reaching [9] the eyes, lateral edge simple: scutel with a few, obsolete yellow points; tip yellowish; hemelytra with a few obsolete, yellow points: feet yellowish; tip of the thighs and points on the tibiae and on the tarsi black. Length nearly half an inch. PENTATOMA. P. HILARIS.-Green; tips of the three last joints of the antenne blackish or rufous. Inhabits United States. Body bright green, punctures very numerous and dense; edges of the head, thorax, hemelytra and abdomen white, yellowish, or rufous: antennae, second and third joints, subequal, the latter longer, third and following black or rufous at their tips: thorax, lateral edge rectilinear from the anterior angle to the posterior rounded angle: abdomen on the edge with a black point at each incisure: rostrum terminating between the posterior feet. Length from half an inch to more than three-fifths. It inhabits various parts of the Union. Nuttall gave me two individuals which he obtained in Misssouri; Mr. Oemler sent me one from Georgia, that varies in being somewhat shorter and more robust than the others; Mr. Barabino sent me two, and I have also found them abundantly in this State. A label attached to one in my cabinet says " like pensylvanica Beauv. pl. 11, but not the same. I have not present at access to Beauvois' work. Sexes alike. [10] INSECTS OF LOUISIANA. 305 [Nezara pennsylvanica Beauv. (1805) pl. 11, fig. 5: Rhaphigaster sarpinus Dallas, Brit. Mus. Cat. Hemipt. (1851) part 1, 276.-UHLER.] RHINUCHUS Kirby. 1. R. NASULUS.-Posterior tibiae, in all their length, dilated and compressed. Inhabits Georgia, Florida and Louisiana. Body fuscous: head with a projecting spiniform termination: antennae reddish brown; basal joint as long as the second, fuscous; terminal joint longer than the penultimate, yellowish: thorax with small, elevated dots; lateral angles more or less prominent: hemelytra, membranaceous part blackish: tergum on the lateral margin with a short whitish line at the incisures: thighs spinous beneath, posterior pair much thickened: tibiae yellowish; posterior pair fuscous, dilated and compressed in their whole length; inner edge minutely denticulate; exterior edge very obtusely a little undulated: width decreasing to the tip. Length one inch. A large species. One of the spines of the posterior thighs is sometimes much more prominent than the others.' I received several specimens from Mr. Oemler of Savannah, and I obtained one in Florida besides these sent me by Mr. Barabino from Louisiana. The posterior tibiae are much more slender at tip than those of compressipes F. 2. R. DECLIVIS.-Thorax dilated at the posterior angles; beneath whitish sericeous. Inhabits Georgia and Louisiana. Body dark brown: head with an acute or spinous tip: antennae dark ferruginous, terminal joint paler: thorax [11] much elevated behind; the anterior declivity being almost vertical and sericeous with very short, whitish hairs; numerous, small, distant tubercles; lateral edge with short, thick spines; posterior angles dilated, subacute at tip: scutel with a marginal impressed line and dull whitish tip: beneath whitish sericeous: feet black, fuscous; thighs with four or five spines beyond the middle, posterior pair not greatly dilated; posterior tibiae dilated their whole length, more prominent towards the exterior base. Length one inch and one-fifth. 20 306 INSECTS OF LOUISIANA. A large species. The posterior tibia have considerable resemblance to Drury's figure of those of compressipes F., but the posterior angles of the thorax are much more dilated. REDUVIUS Fabr. R. PECTORALIS.-A complicated spine beneath the eye, and a projecting spine on each side of the pectus before. Inhabits Indiana, Florida and Louisiana. Body dark cinereous: head spinous beneath, canaliculate behind: antennae, first joint more robust; second joint a little longer; third shortest; fourth nearly as long as the third; beneath the eye a branched spine, behind which is a smaller one: base of the head with four tubercles above, and spines each side; rostrum, first joint mnch longest; thorax with impressed lines, somewhat canaliculate; pectus before with two parallel, prominent, somewhat arquated spines extending on each side of the tip of the rostrum; anterior pair of feet a little more robust: [12] thighs obsoletely spotted and lineated: tibiae annulated: posterior feet much longest. Length less than half an inch. When at rest the first joint of the antennae is porrect, and the remaining joints inflected. ZELUS Fabr. Z. BILOBUs.-Yellowish; thoracic spot, feet and base and tip of the hemelytra black. Inhabits Georgia and Louisiana. Body yellowish, more or less tinged with fulvous: elongated: head elongated, immaculate: antennae: rostrum piceous,n the second and third joints: thorax bilobate: anterior lobe,convex, with a longitudinal impressed line; posterior portion -with a black disk; hemelytra black, with a yellowish band on the tip of the corium, and humerus yellowish: feet black, long: postpectus with a blackish spot over the intermediate feet: coxae and trochanters yellowish. Length over seven-tenths of an inch. This insect was sent to me by Oemler of Savannah, and by Mr. Barabiio of Louisiana. It is a little like taurus Fabr., but is much larger and unarmed. INSECTS OF LOUISIANA. 307 PETALOCHIRUS Beauv. P. BIGUTTATUS.-Hemelytra with a yellow spot beyond the middle and another at base. Inhabits Louisiana. Body black: antennae brown: promuscis and feet dull honey yellow: scutel at tip extending into an obtuse spine: hemelytra, around the tip of the scutel a yellow spot, and an orbicular one on each beyond the middle: abdomen yellowish on the margin. Length seven-tenths of an inch. A fine insect, readily known by the two yellow spots on the hemelytra. The disk which occupies the extremity of the anterior tibiae, in this species is not confined to the extremity, but extends up the inner side of the tibiae, nor is its limit so definite as in some other species. [Belongs to Pirates, and is P. mutillarius Fabr. Syst. Rhyng. 280: Herrich Schiaffer, 8, pl. 269, fig. 829.-UHLER.] TETTIGONIA Latr. T. CoAGULATA.-Head and thorax irrorate with dull yellowish; anterior tibiae subclavate. Inhabits Louisiana. Body dusky, brownish: head depressed above, rather longer than the width between the eyes, rounded before and bounded by an obtuse edge; not gibbous beneath; obsoletely irrorate with dull yellowish: thorax obsoletely irrorate with dull yellowish, which on the scutel is still more obscure: hemelytra subhyaline, immaculate, somewhat tinged with bluish towards the tip: tergum blue-black, with a yellow lateral margin, broader towards the [14] base: pleura dusky, irrorate with dull yellowish: pectus yellowish: feet yellowish, more or less reticulate with blackish on the thighs; anterior tibiae gradually a little dilated to the tip and with their tarsi dusky; intermediate tibiae with a black line; posterior tibiae with the obtuse spines of the exterior side black, giving a regular series of black points: venter yellow, segments black at their bases. Length under half an inch. 308 INSECTS OF LOUISIANA. In comparison with irrorata F., which it most resembles, the anterior termination of the head is more obtusely rounded transversely, rather longer and much less convex on the inferior front: the hemelytra are more hyaline and are not spotted; the color of the abdomen is quite different and the anterior tibiae are subclavate. HYMENOPTERA. SPHEX. S. HABENA.-Black, head and thorax varied with golden. Inhabits Louisiana. Front and nasus golden: antennae entirely black: behind the eyes a large golden spot: collar golden: thorax with a golden vitta each side, meeting before the scutel and anteriorly curved downward before the wings and terminating in a double spot on the pleura: metathorax, a transverse line under the scutel, disk and line each side extending to the posterior coxae golden: wings tinged with ferruginous at base and dusky towards the tip: third cubital cellule triangular, anteriorly almost acute: first recurrent [15] nervure almost continuous with the dividing nervure of the second and third cellules: abdomen entirely black, a little sericeous at base; petiole short, distinct: feet entirely black. Length over one inch. Intimately connected with S. (Chlorion) ichneumoneus F. but aside from some differences in the neuration of the wings, the abdomen and feet are entirely black. DIPTERA. SCIARA Latr. S. DIMIDIATA.- Black; abdomen dull fulvous, black at tip. Inhabits Louisiana. Female.-Thorax polished: wings fuliginous; costal margin blackish; middle nervure very distinct: poisers blackish: abdomen dull fulvous, with a few blackish hairs on the' three basal joints, fourth joint a little darker; tip black: feet piceous-black. Length of the body less than one-fifth of an inch. INSECTS OF LOUISIANA. 309 DILOPHUS Meig. D. sTYGIus.-Black, polished; inferior transverse wing nervure distinct. Inhabits Louisiana. Body entirely black, immaculate, polished; thorax with the anterior series of spines slightly interrupted: wings dark fuliginous, blackish on the costal margin; transverse [ 16] nervures distinct; a darker shade on the stigma: anterior tibia with a series of spines on the middle and another at tip. Length to the tip of the wings about one-fourth of an inch. The ultimate cross nervure joins the middle nervure before the bifid portion. The sexes are alike in their markings. This species differs from the orbatus Wied., which is destitute of an obvious ultimate cross nervure. [The name must be changed, as there is another Dilophus stygius Say, Journ. Acad. Nat. Sci. Phil. 6, 155. I would take the present to be a synonym of D. orbatus Say, if the sexes were not here stated to be alike in their markings.-SACKEN.] 310 HETEROPTEROUS HEMIPTERA Descriptions of new species of HETEROPTEROUS HEMIPTERA of North America. New Harmony, Indiana, December, 1831.* SCUTELLERA Lam. S. VIRIDIPUNCTATA.-Piceous, with green impressed punctures. Inhabits Florida. Body entirely piceous or dark-reddish, with all the punctures, above and beneath distinctly bright green; thoracic punctures more numerous on the anterior lateral margins: scutel with a black spot each side before the middle; feet honey yellow. Length seven-twentieths of an inch. I obtained two individuals when in East Florida with Mr. Maclure. [This is Pachycoris chrysorrhoeus Fabr. Syst. Rhyng, 138: Germar. Zeitsch. 1, 95, and is found in S. Carolina, Florida and Mississippi.-UHLER.] TETYRA Fab. Leach. 1. T. MARMORATA.-Variegated; costal margin with transverse fuscous lines. Inhabits New Jersey. Body variegated with more or less bright yellow and fuscous; punctures numerous; antennae pale reddish-brown; scutel with the fuscous color almost reticulate: hemelytra, coriaceous portion with transverse fuscous lines or spots: tergum on the margin with quadrate fuscous spots: feet yellow, with brown points. Length three-tenths of an inch. This insect is very variable in the arrangement and brightness of its colors. It inhabits the Pine regions of New Jersey, whence several individuals were sent to me by my brother, B. Say. *This memoir is taken from a reprint by Dr. Asa Fitch, in the Transactions of the New York State Agricultural Society'for 1857; I have never seen an original copy of it and can consequently give only the paging of the reprint.-LEc. HETEROPTEROUS HEMIPTERA. 311 2. T. FIMBRIATA nob., Amer. Entom. vol. 3. much resembles T. diana F., which, however, is somewhat larger, with fulvous markings and blackish antennae and feet. The latter is a [756] southern species and I have obtained many specimens from New Orleans, preserved in a solution of muriate of mercury. THYREOCORIS Schrank. T. HISTEROIDES.-Blackish, antennae dull honey-yellow. Inhabits United States. Body oval, greenish-black, polished, with rather small, not dense or profound punctures; antennae dull honey-yellow: feet dark piceous. Length from over three-twentieths to one-fifth of an inch. Resembles T. scarabaeoides Linn., but is larger, the puncturing is less profound and not so dense. The lateralis F. has the margin of. the hemelytra white. It is a common insect and varies in magnitude. Nuttall presented me with a large individual from Arkansaw. [This is Corimelaena nitiduloides Wolff, Icones Cimicum, 98, tab. 10, fig. 92, which dating in 1802 has priority.-UHLER.] 2. T. ALBIPENNIS.-Fulvous; hemelytra white. Inhabits Missouri. Body pale fulvous, oval; head; thorax blackish before and on each side: lateral margin white: scutel each side at base with a small black spot: hemelytra white with a small rufous spot: beneath piceous: lateral margin of the pectus white. Length less than one-fifth of an inch. This insect is mutilated; but it is a very distinct species. I obtained it on the Missouri river, when with Major Long's exploring party. EDESSA Fab. Lat. 1. F. CRucIATA.-Above with a sanguineous cross. Inhabits United States. Body greenish yellow: antennae pale rufous: thorax with a sanguineous band on the posterior margin extending upon the lateral obtuse angles; hemelytra, the coriaceous portion, with the inner and posterior margins sanguineous, giving the appear 312 HETEROPTEROUS HEMIPTERA. ance of a cross on the back: beneath yellowish: venter with abbreviated, lateral, slender, sanguineous lines, tip sanguineous. Length two-fifths of an inch. When the hemelytra are at rest their sanguineous margins represent a common cross. Curtis gives this genus the name of Acanthosoma, but the character upon which it is instituted enters into the natural [757] character of Edessa, as stated by Fabricius, " Sterno saepius elevato," notwithstanding which, however, he referred some of the species to another genus, probably without observing their distinguishing trait. 2. E. LATERALIS.-Tergum sanguineous, lateral margin yellow with a black spot. Inhabits North-west Territory and Canada. Body yellowish-green, with large, sparse, dusky punctures: antennae a little tinged with rufous; terminal joint blackish at tip: thorax on the edge immediately behind the posterior lateral angles obtusely deeply emarginate: hemelytra slightly bifasciate with pale fuliginous and a slight spot of the same color on the membranaceous portion: tergum sanguineous: lateral margin yellow, interrupted with quadrate black spots; venter pale sanguineous, with deeper colored punctures and lateral transverse abbreviated lines. Length three-tenths of an inch. A smaller species than the preceding and quite distinct by many characters. I obtained several specimens in Major Long's expedition to the source of St. Peter's river. PENTATOMA Oliv. Lat. t Thorax armed on each side with a spine or prominent angle. 1. P. CYNICA.-Yellowish, with impressed rufous punctures; antennae rufous. Inhabits Missouri. Body yellowish tinged with green; with numerous impressed punctures, those beneath more strongly contrasting: head before the eyes rather wider near the tip than in the middle: antennae pale rufous, first joint oval, yellowish; second joint considerably longer than the third; thorax with the posterior lateral angles prominent, acute: anterior to which the edge is granulated; tergum HETEROPTEROUS HEMIPTERA. 313 rufous; lateral margin yellowish-rufous, with blackish incisural margins; rostrum robust. Length over three-fifths of an inch. This insect was presented to me by Nuttall. It differs from punctipes nob., inasmuch as that common species has the second joint of the antennae shorter than the third; and ultimate joints are black; the punctures of the body also are [7 58] black, the feet have black points and the rostrum is slender. The present species is also larger. 2 P. AUGUR.-Thoracic spines pointing forward; beneath with five vittae. Inhabits Georgia. Body rather slender, attenuated from the thoracic spines to the posterior extremity; yellowish-green; head with two vittae of impressed black punctures; antennae pale rufous; first joint long oval; third joint longer than the second; thorax, spines acute, pointing forwards; punctures of the disc pale rufous, of the lateral margin blackish; scutel and hemelytra, punctures blackish: beneath with three or five vittse of black punctures; thighs with black points. Length two-fifths of an inch. In most respects this agrees with typhaeus F., but it has no sanguineous mark in the middle of the hemelytra. It was sent to me by Mr. Oemler, of Savannah. 3. P. EMARGINATA-Bluish; scutel with three fulvous dots. Inhabits Georgia. Body purplish blue; rostrum pale fulvous; thorax at posterior angles, with a cylindrical emarginate spine; scutel having three orbicular fulvous spots: feet at base pale fulvous: beneath, under the rostrum, region of the feet, middle of the ventral base, anus, and triangular lateral spot fulvous. Length half an inch. Female.-Thorax with the anterior and lateral margins and longitudinal line in the middle dull fulvous; the two basal spots of the scutel sometimes confluent. Length three-fifths of an inch. The floridanus Linn., is described to be black, otherwise I should suppose this to be related to it; that species is said to be 314 HETEROPTEROUS HEMIPTERA. an inhabitant oi South America. I received this species from Mr. Oemler of Savannah, as an inhabitant of Georgia. The basal joint of the antennae is oblong-oval and the third joint is rather longer than the second. 4. P. TRISTIGMA- Venter with a series of three or four black dots, the posterior one largest. Inhabits United States. [759] Above pale yellowish-olive or whitish-olivaceous, with dense blackish punctures and a few small, irregular, scattered, impunctured spots: posterior portion of the eye beneath whitish: antenna rufous: fourth and fifth joints brown, excepting the base of the fourth; second joint considerably shorter than the third: a black line from the base of the antenne to the eye: thorax with the lateral angles rather prominent, angulated but not spiniform; lateral edge whitish and concavely arquated: blue-black, on the lateral margin with a pale dot on the middle of each segment: beneath yellow, with reddish points, with a black spot on the middle of each of the three or four posterior segments, the posterior one largest and oval: feet pale, with black points; a black point at the termination of each incisure. Length seven-twentieths of an inch. Female, with a black line on the middle of the one or two posterior segments of the venter. Length nearly two-fifths of an inch. This species is not rare. It resembles P. punctipes nob., Jour. Acad. Nat. Sci. vol. 4, p. 314, which is so common on thistles, &c., but is smaller and is distinguished by the ventral spots, and black points on the lateral edge of the venter. 5. P. SERVA.-Above pale dull yellowish, with dense black punctures: head with a black edge; a black line from the base of the antennae to the eye: eye on the posterior portion whitish: antennae yellowish, dusky at tip, second joint hardly shorter than the third: thorax, lateral edge granulated and concavely arquated; lateral angles prominent but rounded: scutel whitish on the posterior edge: tergum blue-black, with yellowish spots on the margins: beneath yellow, with a black point at the lateral tip of each incisure: feet with black points. Length one-half an inch. Inhabits United States. HETEROPTEROUS HEMIPTERA. 315 I have found specimens in Pennsylvania and Florida. It is larger than P. punctipes nob., and the lateral thoracic angles are prominent, but not angulated, as they are in that species. The punctipes also is destitute of the black points at the lateral terminations of the ventral incisures. [760] t Thorax unarmed with a spine. 6. P. LIGATA.-Dull olive green, external edge sanguineous. Inhabits Missouri. Body olive green, rather dull; confluently punctured: antennae black; second joint rather longer than the third: thorax, lateral margin sanguineous passing to yellowish on its inner side; scutel at tip bright sanguineous: hemelytra sanguineous on the lateral margin nearly to the middle, abdomen on the lateral margin from the middle to the tip sanguineous: beneath tinged with yellow on the pectus: feet greenish, yellowish at base. Length eleven-twentieths of an inch. Presented to me by Nuttall as a native of Missouri. The edge of the head is not reddish. [Is P. rufocinctum H. Schf., Wanz. Ins. 4, pl. 139, fig. 436. Found in Missouri and Texas; Dr. Fitch says, what I very much doubt, that it occurs in New York.-UHLER.] 7. P. LATICORNIs.-Second joint of the antenns elongated, compressed; lateral margins of the thorax red. Inhabits United States. Body somewhat depressed; marbled with fuscous and brownish-cinereous; antennae second joint compressed and grooved, as long as the anterior tibi; remaining joints;; thorax on the lateral edge denticulate; lateral margin rufous: posterior angles a little prominent, rounded: hemelytra on the lateral basal margin rufous: tergum, margin alternating with rufous and black: beneath dusky, pale about the insertion of the feet; rostrum extending beyond the insertion of the posterior feet. Length seven-twentieths of an inch. Aspect of P. annulata F., but widely distinct. It perhaps ought to be in the previous division of the genus inasmuch as the lateral thoracic angles are a little prominent; but they are obtusely rounded. Belongs to the genus Halys Fabr. 316 RETEROPTEROUS HEMIPTERA. 8. P. SENILIS.-Long oval; tergum blackish, with two paler spots at tip. Inhabits United States. Body greenish-olivaceous, rather dull; rather oblong or long subovate; with rather close-set punctures, somewhat confluent on the scutel and thorax, more distinct on the hemelytra, and smaller and more dense on the head: head emarginate at tip; tubercle which supports the antennae extended into an obvious acute spine: antennae dull rufous, a little hairy; second joint [761] slightly longer than the third: thorax a little paler on the lateral margin; lateral edge rather concave than rectilinear: hemelytra rather paler on the exterior margin; membranaceous tip almost of the same color: tergum black, with a dull yellowish margin; penultimate segment with two large obscure yellowish, quadrate spots. Length over three-fifths of an inch. This species is rather more slender than usual, and the tubercle which supports the antennae is a little produced into an acute spine. 9. P. HILARIS.-Oblong-oval; green; tips of the three last joints of the antennae blackish or rufous, the two last whitish at base. Inhabits United States. P. hilaris nob., New Sp. N. Am. Ins. found by J. Barabino, 1832, p. 9. [Ante, p. 304.] Body bright green; punctures very numerous and dense; edges of the head, thorax and abdomen, white yellowish or rufous; antennae, second and third joints subequal, the latter longer, third and following black or rufous at their tips, whitish. at their base, the ultimate one whitish at tip; thorax, lateral edge rectilinear from the anterior angle to the posterior rounded angle: abdomen on the edge with a black point at each incisure; rostrtrm terminated between the posterior feet. Length from' one half to more than three-fifths of an inch. This species inhabits various parts of the Union. Nuttall gave me two individuals which he obtained in Missouri; Mr. Barabino sent me two from Louisiana, and I have also found it in this State. A label attached to one in my cabinet says "like HETEROPTEROUS HEMIPTERA. 317 pensylvanicus Beauv. pl. 2, but not the same." I have not at present access to Beauvois' work. Sexes alike. 10. P ABRUPTA.-Green; short oval; edges of the head, thorax and abdomen whitish. Inhabits Georgia. Body rounded-oval; immaculate, densely punctured; edges of the head, thorax and of the base of the hemelytra obsoletely whitish: antennse, second and third joints nearly equal; third and fourth, black at tip; fifth: thorax with the anterior angles obtusely rounded, a small tubercle at the tip of the eye; lateral [762] edge convexly arquated; posterior angles obtusely rounded: beneath green; region of the base of the feet a little tinged with brownish; abdomen on the lateral edge whitish with a black point at each incisure; spiracles white with a blackish point. Length nine-twentieths of an inch. Much like the preceding, but it is shorter and more rounded, and the lateral edges of the thorax are decidedly arquated. The specimen is deficient in the terminal joint of the antennae. It was presented to me by Mr. Oemler. I formerly supposed it a variety of hilaris. 11. P. INSERTA.-Thorax deeply emarginate before, rounded each side; venter with with a series of black dots. Inhabits Missouri and Arkansaw. Body oval, pale yellowish, with numerous black punctures on every part, excepting the membranaceous portion of the hemelytra: head unarmed, seated very deeply in the thorax: thorax profoundly emarginate before for the reception of the head; lateral edge arquated, so as to include the posterior angles in the curve; line on the middle and posterior narrow margin impunctured: scutel with a longitudinal impunctured line extending to the middle: hemelytra nervures impunctured: tergum black, densely punctured margin of the general color: beneath with two black spots behind the anterior feet; venter with a series of black dots; lateral margin darker or blackish at the incisures; feet with black points. Length half an inch. 318 HETEROPTEROUS HEMIPTERA. The specimen from the Arkansaw was given me by Nuttall. The lateral line of the thorax is less oblique than that of the preceding species, and the thorax is somewhat more depressed. (Male) destitute of the ventral spot? 12. P. SAJCIA.-Scutel with a yellowish line; hemelytra with a fuscous line. Inhabits United States. Body greenish-yellow; punctures not dense, but rather more so on the head and scutel: antennae rufous, paler at base; basal joint greenish: supporting tubercle with a short acute conic spine: thorax, lateral edge rectilinear to the posterior rounded angle; [763] scutel with a distinct yellowish vitta: hemelytra with a fuscous vitta, not reaching the base or tip; superior margin yellowish; tergum black, minutely rugose, but not punctured; margin yellowish. Length about two-fifths of an inch.' The dark brown vitta on the hemelytra is a distinguishing mark. I took an individual on the eastern shore of Virginia, another in Florida, and a third either in Pennsylvania or Indiana. 13. P. CALVA. —Reddish-brown; head and anterior half of the thorax yellowish. Inhabits Virginia. Body reddish-brown, punctured: head yellowish; edge darker: antenna rufous; first and second joints green; third joint a little longer than the second: thorax on the anterior half yellowish lateral edges rectilinear: tergum sanguineous, blackish at tip, beneath whitish; venter with a few rufous points and some clusters of rufous points each side; lateral margin with a black point at the incisures. Length about two-fifths of an inch. I caught this species on Holly (Ilex.) 14. P. DIMIDIATA.-Anterior part of the thorax of a different color; second joint of the antennae half the length of the third. Inhabits Georgia and Florida. Body dull greenish, varying to almost reddish-brown: head not contracting anteriorly, rounded at tip: antenna rufous, terminal joint a little darker towards the tip; at base paler; HETEROPTEROUS HEMIPTERA. 319 second joint not longer than the first, and not more than half as long as the third: thorax, rather more than the anterior half yellowish; lateral edge rectilinear: tergum purple-black, somewhat polished, rufous at tip; sometimes entirely rufous, excepting the margin, which is yellowish. Length about seven-twentieths of an inch. The brevity of the second joint of the antennae, will readily distinguish this species from the preceding. I obtained specimens in Florida, and an individual was sent me from Georgia by Mr. Oemler. [764] 15. P. AEQUALIS.-Cinereous, with black punctures; tergum black with large punctures towards the tip. Inhabits Indiana. Body dull cinereous, with numerous rather large, black punctures, head rather long, rounded at the tip: antennae with close set black points; second and third joints equal: thorax, lateral edge nearly rectilinear, slightly concave; scutel scarcely contracted before the tip, which is rounded; tergum black, the punctures small and sparse at base, and becoming large and numerous towards the tip; lateral margin with cinereous spots: beneath with black punctures, sometimes assembled in groups; feet with black points. Length three-tenths of an inch. Smaller than either of the preceding, and the second and third joints of the antennae are equal. 16. P. RUGULOSA.-Green, with minute, transverse rugae; tergum black at base; antennae third joint short. Inhabits North-west Territory. Body pale greenish, with minute ruge, particularly on the thorax; antennae third joint hardly more than half the length of the second: thorax much contracted before; lateral edge rather concave than rectilinear: tergum black at base, the three ultimate segments and the margin green: hemelytra punctured: beneath and feet with small green punctures. Length over one-fifth of an inch. The third joint of the antennae is very short and small, and the small ruga of the thorax distinguish this species. 17. P. UNDATA.-Scutel but little narrowed at tip; lateral edge of the head undulated. 320 HETEROPTEROUS HEMIPTERA. Inhabits North-west Territory. Body dull yellowish, with numerous black, deep punctures; head with the lateral edge undulated, the tip abruptly narrowed, with a narrow, deep fissure: antennae blackish rufous, second joint longer than the third: thorax with the lateral narrow margin and longitudinal line impunctured; lateral edge rectilinear: scutel rather large, not being much narrowed at tip; tergum black, punctured, with a yellowish margin: beneath [765] punctures more dense: venter black, punctured; with the margin yellow: feet with black points. Length about one-fifth of an inch. The scutel in its form resembles that of the preceding species, but the brevity of the third joint of the antennas and the undulated edge of the head distinguish it. I obtained this species when with Major Long's party in the North. 18. P. DELIA.-Rather widest behind the middle; scutel but little narrowed at tip. Inhabits Missouri and Massachusetts. Body dull-yellowish green; ovate, being slightly widest behind the middle; with rather large, profound, black punctures not closely set: head somewhat long; the obtuse carina impunctured: antennae rufous, darker at tip; second joint much shorter than the third: thorax, lateral edge rectilinear; lateral margin without black punctures; anterior angles transversely truncate to receive the eyes, and without any tubercle; posterior angles not wider than the hemelytra: scutel not much narrowed at tip; tergum black punctured, margin yellowish: hemelytra, coriaceous portion rounded at tip: beneath with a series of black points on the margin and another on the edge. Length three-tenths of an inch. The scutel is not so much narrowed at tip as usual. One was presented to me by Nuttall, and another by Dr. Harris. 19. P. CALCEATA.-Green, thorax with a band, and yellow spot each side before, enclosing a green dot: tarsi rufous. Inhabits United States. Above green, densely punctured; antennae dull sanguineous; first and second joints green; second and third joints equal; ultimate joint dusky: thorax with a yellow or rufous band be HETEROPTEROUS HEMIPTERA. 321 tween the lateral angles; on the anterior submargin are two transverse, yellow spots, each enclosing a green dot; lateral edge granulated and nearly rectilinear, black or dark rufous; lateral angles but little prominent, rounded: scutel and hemelytra immaculate, membrane whitish or little tinged with rufous: beneath yellow, tinged with green; venter with a lateral submarginal series of points and another series of black points on the lateral edge; tarsi rufous. [ 766] Length over two-fifths of an inch. Var. a. Thoracic band obsolete. Male much smaller; the anterior portion of the thorax yellowish, obliterating the two spots; feet not obviously rufous. Length three-tenths of an inch. The variety of this species was taken by my brother in New Jersey. One of my male specimens has one of the antennae not more than half the length of the other, in consequence of the unnatural brevity of the second, third and fourth joints, which are hardly longer than broad; the fifth joint is much compressed but not dilated. 20. P. NERVOSA.-Rufous, with black punctures; antennae second joint half as long as the third. Inhabits Indiana. Above rufous or deep testaceous, with numerous separate black punctures: head with confluent punctures, excepting on the carina: antenna dusky at tip; second joint hardly over half the length of the third; eyes on the posterior part whitishi: thorax, lateral edge impunctured, and on its anterior part almost rectilinear, curving towards the lateral angles which are hardly prominent beyond the humerus, and very obtusely rounded: scutel, lateral edge at base arquated so as to leave an obvious interval between its basal angles and the thorax: hemelytra, membrane with its nervures blackish: tergum blue-black;margin yellowish with black spots: beneath pale rufous with black punctures, which become rufous on the abdomen; aeblackish, interrupted, lateral vitta from the eyes becomes obsolete on the venter: venter with double black marginal spots; feet with black points. Length nearly two-fifths of an inch. The specimen is a female. 21 322 HETEROPTEROUS HEMIPTERA. 21. P. SEMIVITTATA.-Pale, with confluent black punctures s') arranged as to leave three vittse on the head and about five on the scutel. Inhabits Indiana. Above yellowish-white, with confluent black punctures, and numerous short hairs: antennae dusky at tip; second joint [767] rather longer than the third: head with three dull yellowish vittoe: thorax with three vittae, becoming obsolete behind; lateral margin a little depressed, impunctured; lateral edge very slightly arquated; lateral angles rounded, not prominent; scutel with five vittm confluent behind: tergum blue-black; margin with yellowish, large, quadrate spots: beneath yellowish; two black lines before the eyes: an interrupted lateral vitta of black punctures from the eyes nearly to the posterior extremity: feet immaculate, tarsi dusky. Length three-tenths of an inch.'The specimen is a female. It is more than usually hairy. It'has some resemblance to Stoll, fig. 102, but is shorter. 22. P. GAMMA.-Fabr. (Cimex) Syst. Rhyng., p. 177, C. albtpes, E. Ent. Syst. suppl. p. 4 P.; punctipes nob., Jour. Acad. Nat. Sci. v. 1, p. 313? A common species. [Say makes an error in quoting Fabricius for P. gamma. There is no such species either in Systema Rhyngotorum or in Ent. Syst. or its supplement. The correct name is P. lugens Fabr. Ent. Syst. (1794) 4, 125: C. albipes Fabr. Ent. Syst. Suppl. 535: C. punctipes Beauv. Ins. pl. 8, fig. 6; Say, Journ. Ac. Nat. Sc. 4, 313. —UHLER.] 23. P. BIOCULATA Fabr. (Cimex) Syst. Rhyng. 175. Var. a. transversa? thoracic spots transverse. This species inhabits the Southern States. 23. [bis.] P. BIFIDA nob. Descr. of North American Ins., found by Joseph Barabino. [Ante, p. 303.] Metasternum elevated and bifid at the tips. 25. P. TENEBROSA nob., ibid. p. 8. Blackish, antennae and feet varied with white. CYDNUS Fabr. 1. C. LIGATUS. —Blackish; thorax and hemelytra with a white exterior edge. HETEROPTEROUS HEMIPTERA. 323 Inhabits United States. Body piceous-black: head emarginate: antennae, second joint dull rufous; ultimate two joints rather long: thorax with numerous punctures, before the middle impunctured; lateral edge white: hemelytra on the lateral edge white: abdomen excepting at base, with a white edge: tibiae white on the exterior edge. Length about one-fifth of an inch. It is smaller than bilineatus nob., and larger than spinifrons nob., and very different from either by many characters. A very common species. It much resembles the binotatus, but is destitute of the white spots of the hemelytra. [768] [Described also as Sehirus albonotatus Dallas, Brit. Mus. Cat, Hempt. part 1, 127.-UHLER.] 2. C. BILINEATUS nob. Var. a. picea. Entirely light piceous. Inhabits Indiana. [Belongs to Aethus Dallas.] GONOCERUS Lat. G. ANTENNATOR Fabr. The author describes this species to have the second joint of the antennae scabrous and the " ultimo claviformi." Now if these characters are correct, a species in my collection, and which is not rare, is altogether new; but this I consider doubtful. I will however state the differential characters, viz: G. DUBIUS.-Antennae, first joint scabrous or with short spines; ultimate joint oblong oval. Length nearly half an inch. Inhabits Pennsylvania and Indiana. It is probably the insect that naturalists refer to antennator F. [Appears to be Coreus antennator Fabr. Syst. Rhyng. 198: it belongs to Chariesterus, and is C. moestus H. Schf. 7, pl. 217, fig. 681. —UHLER.] SYROMA[S]TES Lat. 1. S. REFLEXULUS. —Reddish-brown; head carinate before. Inhabits Pennsylvania. Body reddish-brown, with rather large, confluent punctures: 324 HITEROPTEROUS HEMIPTERA. head not extending more than half the length of the basal joint of the antennae, obviously carinate between the antennae, tubercles each side of the antennae; acute: antenna, first joint robust, rough, much narrowed; second joint shorter than the third; terminal joint half as long as the third: thorax, lateral margin a little reflected, the edge concavely arquated; posterior angles rounded; anterior angles prominent, acute: scutel narrowed before the tip: hemelytra, corium yellowish, rufous near the scutel; nervures very distinct; lateral edge a little reflected; membrane hyaline: beneath greenish-yellow; feet pale rufous; posterior thighs dilated, spinous beneath. Length one-fourth of an inch. The rostrum hardly reaches the posterior coxse. The last joint of the antennae is elongate-oval and much shorter than the preceding joint, as defined by Latreille in this genus. 2. S. FRATERCULUS.-Anterior point of the head extending nearly to the tip of the first joint of the antennae. Inhabits Georgia and Indiana. [769] Closely resembles the preceding species, but is smaller; the anterior tip of the head extends nearly or quite to the tip of the first joint of the antennae; the lateral margin of the corium is very distinctly punctured with black; the membrane is marked with a longitudinal obsolete brown line and small points; the general color is darker; the tergum is sanguineous, black at base. Length less than one-fourth of an inch. A small specimen was sent to me by Mr. Oemler, from the vicinity of Savannah, and I have obtained the two sexes in Indiana. 3. S. OBLIQUUS. —All above punctured; rostrum and head rather short. Inhabits United States. Body pale yellowish-rufous: head obviously punctured, not extending to the tip of the first joint oT the antennae; antennae, first joint robust; second hardly two-thirds as long as the third: thorax with rather large punctures; no obvious transverse impressed line: hemelytra, on the corium with large separate punctures; posterior edge very oblique and elongated; membrane immaculate, undulated by the nervures: beneath more HETEROPTEROUS HEMIPTERA. 325 obviously tinged with rufous; feet paler; rostrum hardly reaching the intermediate coxae. Length less than three-twentieths of an inch. It may be distinguished by the remarkable obliquity of the terminal line of the ceorium. COREUS F. Latr. 1. C. CONFLUENTUS [CONFLUENs].-Pale brownish; thorax bilineate; abdomenwith a spotted margin. Inhabits Mexico. Body depressed with numerous minute hairs, pale yellowbrown: thorax with a transverse, slightly elevated line on the posterior submargin; two broad black vittae, confluent before, and suddenly narrowed on the posterior margin; a black lateral marginal vitta before; posterior angles obtusely rounded: scutel at base and an abbreviated line black: hemelytra immaculate; corium finely reticulate: abdomen dilated; tergum on [770] the margin alternating with blackish and yellowish: beneath blackish varied with yellowish; feet blackish; knees and coxe fulvous. Length three-fourths of an inch. This is a dilated and somewhat depressed species. 2. 0. CDIFFUSUS.-Brownish; abdomen dilated; antennae and feet blackish. Inhabits Georgia. Body depressed pale yellowish-brown; with short hairs; dilated: head unarmed, the middle of the tip not reaching the base of the first joint of the antenna: antenna blackish, hairs very obvious; basal joint a little excurved; second joint a little longer than the third: thorax somewhat transversely punctured; lateral edge irregularly denticulated, particularly anteriorly; posterior angles very obtusely rounded: scutel black in the middle: hemelytra immaculate; cerium finely reticulate; the disks of the basal cellules blackish: abdomen dilated; margin elevated and with a series of black points on the edge; feet blackish piceous. Length seven-tenths of an inch. Resembles the confluenta nob., but is somewhat more dilated 326 HETEROPTEROUS HEMIPTERA. and the anterior lateral edge of the thorax is rectilinear; whereas in that species it is arquated. This insect was sent me by Mr. Oemler of Savannah, who took it in the neighborhood of that city. ANISOSCELIS Latr. 1. A. CORCULUS.-Fuscous; antennae rufous; posterior tibiae dilated, not sinuous. Inhabits Florida. Body reddish-brown, rather dark, minutely and densely punctured: head simple, with three rufous lines: antennae rufous; basal joint much shorter than the second, blackish above, second joint longest; ultimate joint rather shorter than the preceding one, fuscous: thorax with the angles not prominent, rounded: scutel undulated on the disc: tergum on the lateral margin with yellowish lines at the incisures: beneath dull rufous with numerous black points; rostrum extending to the middle of the venter: thighs blackish above towards the tip, spinous beneath, [771] posterior pair a little thickened; tibiae dull yellowish; posterior pair dilated, not undulated on the edge, fuscous with small yellowish spots; the dilatation not continued to the tip; inner edge with a few short spines. Length four-fifths of an inch. I obtained two individuals on St. John's river. In one of the two specimens the nervures on the middle of the hemelytra are of a paler, color, as if, in some individuals, a pale band might exist in that part. 2. A. ALBICINCTUS.-Ferruginous; hemelytra with a white band; posterior tibia dilated, sinuated. Inhabits Florida. Body above light reddish-brown or ferruginous: antennae, basal joint blackish: head blackish, with three yellowish lines; thorax with short hair; elevated behind; lateral angles subacute; hemelytra with a slender, white, transverse line; membranous part blackish: beneath yellowish, with irregular, black punctures: feet reddish-brown; thighs spinous beneath; posterior tibia foliaceous, two or three toothed on the posterior edge, the superior tooth smallest; a double hyaline spot, bisected by the lateral carina; tip not dilated. HETEROPTEROUS HEMIPTERA. 327 Length three-fifths of an inch. Resembles balteatus Linn. But according to Drury's figure, that species has simple posterior tibie. It is still more like L. phyllopus Linn., which, however, has the white line undulated and oblique, as figured by Stoll, the posterior thighs more elongated and the posterior tibiae still more dilated, particularly on the inner side, than this species. It is common in Florida. The male has but two denticulations on the dilated edge of the posterior tibiao, whilst the female has three; the sinuations of the edge correspond with the number of teeth. 3. A. oPPosITUS.-Reddish-brown; hemelytra with a white point in the middle of the corium; antennae rufous; head trilineated; posterior tibiae dilated and sinuated. Inhabits Indiana. [ 772 ] This is very closely allied to albicinctus nob., but is uniform in its differential characters. It may be known by the small white point of the hemelytra. 4. A. DECLIVIS nob. (Rhinuchus Kirby) New Sp. N. Am. Ins. found by Jos. Barabino, p. 10. [Ante, p. 305.] Thorax dilated at the posterior angles; beneath whitish sericeous; posterior tibise dilated and compressed their whole length, more prominent towards the exterior base. Inhabits Georgia and Louisiana. Length one inch and one-fifth. 5. A. NASULUS nob. (-" — ) ibid. p. 10. [Ante, p. 305.] Thorax, lateral angles more or less prominent; posterior tibiae dilated and compressed all their length; inner edge minutely denticulate; exterior edge a little undulated; width decreasing to the tip. Inhabits Georgia, Florida, Louisiana. Length one inch. This genus seems to include Petalopus and Rhhiuchus Kirby, of which, however, I have not seen the characters stated, which alone can establish a generic name. 328 HETEROPTEROUS HEMIPTERA. BERYTUS Fabr. B. MUTICUS.-Unarmed: a short groove betweeen the antennae. Inhabits North-west Territory. Body punctured; pale yellowish brown, unarmed: head not much narrowed before, the tip rounded downwards and compressed; and with a profound short groove above: thorax with a glabrous line: scutel carinate, acute at tip, but not produced into a spine: hemelytra, corium with the punctures dilated: beneath blackish along the middle to the middle of the venter. Length nearly seven-twentieths of an inch. Quite distinct from the tipularis F., of which the head is elongated before and hemelytra are spotted; and from the spinosus nob., by being destitute of spines before the posterior coxae and on the scutel. LYGAEUS F. Latr. 1. L. SANDARACHATUS.-Hemelytra yellowish, with a black band and tip; venter sanguineous with a lateral black vitta. Inhabits Mexico. [ 773] Head sanguineous, with an abbreviated line above the rostrum, and more or less dilated orbits and vertex, black: antennae and rostrum black: thorax black, anterior margin white; lateral margin yellowish, tinged with sanguineous before; a dorsal slender yellowish line slightly elevated before: scutel black, yellow at tip: hemelytra pale yellow, a band on the middle and membranous at tip, black; pectus and postpectus black with whitish incisures and margins: venter sanguineous, with white incisures and lateral, abbreviated black vittae: feet black, coxae sanguineous. Var. a. Anterior thighs sanguineous. Var. b. Head above black, with three abbreviated sanguineous lines. Length to tip of hemelytra two-fifths of an inch. Resembles mimus nobis, which, however, has no appearance of the thoracic dorsal line or lateral ventral vittee. 2. L. FACETUS.-Black, with rufous margins and thoracic line. Inhabits Florida. Body black, opake, head at tip narrowed and half the length HETEROPTEROUS HEMIPTERA. 329 of the basal joint of the antennae: antennae second joint longest, ultimate joints rather longer than the third: thorax with two transverse punctured indentations on the anterior margin and middle; margin pale rufous, interrupted near the anterior angles: a longitudinal rufous line not reaching the anterior margin: scutel, disk elevated in the form of a T, which is pale rufous at tip: hemelytra on the lateral and terminal margins pale rufous: abdomen pale rufous on the margin: pectus, ante' lior and lateral margins pale rufous. Length over three-tenths of an inch. I took several specimens in Florida. 3. L. BISTRIANGULARIS.-Black, base of the-hemelytra and venter sanguineous. Inhabits Mexico. Head black: thorax black: lateral margin behind the middle and posterior edge sanguineous; scutel black: hemelytra sanguineous, membranous portion black with a slight edging of whitish: pectus and postpectus fuscous; feet black; venter sanguineous with a black tip. [ 774 ] Length over one-fifth of an inch. Allied to bicrucis nob., but is not half so large, and the coloring of the thorax is quite different. 4. L. RECLIVATUS nob. Var. a. enotus. Destitute of the white spot of the membranaceous portion of the hemelytra. Inhabits Mexico. 5. L. LEUCOPTERUS [Chinch bug.] Blackish, hemelytra white with a black spot. Inhabits Virginia. Body long, blackish, with numerous hairs: antenne, rather short hairs: second joint yellowish, longer than the third; ultimate joint rather longer than the second, thickest: thorax tinged with cinereous before, with the basal edge piceous: hemelytra white, with a blackish oval spot on the lateral middle; rostrum and feet honey-yellow: thighs a little dilated. Length less than three-twentieths of an inch. I took a single specimen on the Eastern Shore of Virginia. The whiteness of the hemelytra in which is a blackish spot strongly contrasted, distinguishes this species readily. 330 HETEROPTEROUS HEMIPTERA. 6. L. DISCONOTUS.-Blackish: third joint of the antennae much shorter than the fourth: hemelytra dull whitish. Inhabits Missouri. Body blackish, punctured, rather wider behind: head a little convex: antennae first and second joints yellowish: third equal to the first; fourth joint almost double the length of the third, and as long or rather longer than the second; thorax very slightly contracted each side of the middle: basal half and anterior edge piceous; hemelytra dull yellowish-white, punctured; membrane on the disc brown; tip wide and obtusely rounded: feet whitish; thighs honey-yellow, anterior pair a little more dilated; postpectus with a pure white posterior margin. Length to tip of hemelytra less than three-twentieths of an inch. 7. L. GEMINATUS.-Hemelytra with two small central spots, and four on the posterior edge of the membrane. Inhabits Indiana and Missouri. Body dull greenish-yellow; head dull fulvous, blackish each side behind: antennae obscure rufous; first joint, incisures and [775] terminal joint black: rostrum extending a little beyond the origin of the posterior feet: thorax with the transverse impression rather deep and blackish: scutel dull fulvous, blackish on the basal margin: hemelytra on the corium tinged with yellowish, almost hyaline, and having on the middle two approximate, abbreviated fuscous lines and on the posterior edge four or three fuscous, small dots;' membrane pellucid: beneath black-piceous; a white line over the insertion of the posterior pairs of feet, and a honeyyellow line over the anterior pair: feet honey-yellow, immaculate; tarsi blackish. Length three-twentieths of an inch. Nuttall presented to me an individual which he took in Missouri, and I obtained others in this State. 8. L. SCOLOPAX. —Hemelytra with a rufous tip of the corium; rostrum extending to the middle of the venter. Inhabits Missouri and Indiana. Body yellowish, inclining on the head and scutel to obscure fulvous: punctured: head, punctures obsolete, tip a little longer than the basal joint of the antennae; antenna black; second HETEROPTEROUS HEMIPTERA. 331 joint equal to or slightly longer than the third: thorax with the anterior margin and transverse impressed line black: scutel blackish each side of the middle; the middle line impunctured: hemelytra, corium yellowish, a dull rufous spot at its tip: membrane milky white with pale brownish spots; tergum fulvous spotted with black as well on the disc as on the margin: beneath more or less spotted with blackish; blackish along the middle; around the origin of the feet yellow; feet obscurely annulated * rostrum extending to the middle of the venter. Length less than one-fourth of an inch. I obtained a specimen at Council Bluff and one in Indiana. 9. L. NUMENIUS.-Hemelytra with a pale rufous tip of the corium; rostrum as long as the body. Inhabits United States. Body greenish-yellow: head long, the tip extending beyond the first joint of the antennae: antennae pale yellowish; first joint rather short; second joint a little longer than the third: fourth joint tinged with honey-yellow: thorax with separate punctures, anterior edge and dorsal line impunctured; transverse [776] indentation interrupted by the dorsal lines: scutel pale rufous each side: hemelytra with a pale rufous spot at tip of the corium; membrane with an obsolete fuliginous line in the middle: tergum on the lateral margin with pale rufous spots: beneath tinged with rufous; feet pale: rostrum extending to the tip of the abdomen. Length less than one-fifth of an inch. Resembles scolopax nob., but the second joint is obviously longer than the third, and the rostrum is more elongated. I do not recollect in what part of the Union I took this species. 10. L. FALICUS.-Elongated; hemelytra yellowish with brown nervures. Inhabits Missouri. Body blackish, elongated somewhat depressed; antennae short, robust, hairy; second joint longest: thorax of the basal margin piceous; transversely a little depressed in the middle and with a longitudinal indentation before the middle: scutel with a carinate line: hemelytra shorter than the abdomen, dull yellowish, with brown nervures; corium short and very oblique at tip; membrane 332 HETEROPTEROUS HEMIPTERA. long but little different in appearance from the corium: abdomen, margined with rufous; feet rufous; thighs a little thickened. Length over three-twentieths of an inch. PAMERA*, Lepel. and Serv., nob. 1. P. CONSTRICTA.-Black; thorax constricted near the middle; hemelytra with hyaline lines; anterior thighs dilated. Inhabits United States. Body black, punctured: antennae, second and third joints dull honey yellow; terminal joint slightly thicker than the third: thorax convex, constricted a little behind the middle; anterior to the stricture impunctured; posterior angles with an oblong tubercle above: posterior margin snmewhat piceous: hemelytra fuscous, with whitish lines and spots, those of the membrane arquated: feet greenish-yellow; thighs annulated with black at tip; anterior pair dilated, spinous beneath, black, yellowish at tip and base: tibia, anterior pair slightly thickened at tip. Length three-tenths of an inch. [777] Male.-Hemelytra pale with fuscous points and lines. Length about one-fifth of an inch. 2. P. CONTRACTA.-Blackish; thorax constricted near the base; hemelytra at base and two spots hyaline; anterior thighs dilated. Inhabits North-west Territory. Body piceous-black: head with a few hairs: antennae pale yellowish, terminal joints fuscous; thorax subcylindric, with hairs; much contracted behind the middle; behind the stricture piceous, punctured: scutel punctured: hemelytra punctured at base, fuscous, base of the corium and spot near its tip and spot at tip of the membrane whitish: feet yellowish: anterior thighs dilated, spinous beneath towards the tip and piceous in the middle: anterior tibiae a little dilated at tip. Length one-fifth of an inch. I obtained this species on the expedition of Major Long to the sources of the St. Peter's river. It is much like constrictts nob., but the thoracic stricture is a little nearer to the posterior * The original word of these'authors is Pachymera, which Latreille informs us is preoccupied. HETEROPTEROUS HEMIPTERA. 333 margin, and the arrangement of colors on the hemelytra is different. 3. P. VINCTA.-Thorax constrained near the base, and with a transverse line before; hemelytra whitish with a fuscous spot. Inhabits Florida. Body blackish, punctured; antennae, basal joint yellowish, tipped with black; remaining joints -; thorax much constricted behind the middle, subcylindric, anterior margin with a transverse impressed line, anterior to which the margin is piceous; posterior margin of the stricture with a cinereous reflection; basal edge piceous; scutel with a carinate line; hemelytra yellowish-white and punctured on the corium, the posterior margin of which is fuscous; membrane milk-white: abdomen on the margin dull rufous; feet whitish; anterior thighs honeyyellow, dilated. Length one-tenth of an inch. Differs from contracta nob., in size, arrangement of colors, and by the very distinct, impressed line before. [778] 4. P. FERA.-Blackish; thorax transversely indented behind the middle; feet piceous; anterior thighs dilated. Inhabits United States. Body blackish; antennae piceous terminal joint darker: thorax a little transversely indented behind the middle, but not affecting the lateral edge; lateral narrow margin depressed, yellowish and almost translucent behind the middle: hemelytra piceous: membrane with a pale, translucent spot at tip of the corium: beneath lack; rostrum and feet piceous; anterior thighs much dilated and spinous beneath; anterior tibia arquated, dilated at tip on the inner side. Length under three-tenths of an inch. Male.-Hyaline spot of the membrane very obvious. Length nearly one-fifth of an inch. Var. a. Thorax behind the stricture piceous; feet entirely honey-yellow. 5. P. UNA.-Punctured; antenna hairy; anterior thighs dilated; thorax a little indented transversely behind the middle; lateral edge arquated. Inhabits Indiana. 334 HETEROPTEROUS HEMIPTERA. Body piceous-black; punctures numerous, distinct profound: antennae distinctly hairy, dull honey-yellow: thorax transversely a little indented behind the middle, and posterior to which the punctures are large and more distant; lateral very narrow margin depressed and somewhat translucent; lateral edge a little arquated at the middle; hemelytra piceous; punctures distinct, distant on the corium; membrane dusky with two or three hyaline arquations and obsolete at tip of the corium: feet piceous; anterior thighs dilated, with about one small spine beneath; anterior tibike a little dilated. Length one-fifth of an inch. Resembles fera nob., but the lateral thoracic edge of that species is rectilinear. 5. P. FALLAX.-Anterior thighs dilated; thorax with the lateral margin dull whitish with brown spots. Inhabits North-west Territory. Body blackish, punctured: thorax on the posterior portion pale, but so densely covered with blackish punctures as to appear [779] blackish; lateral margin depressed, narrow, dull whitish or yellowish, with a series of brown punctures furnishing hairs; scutel with two yellowish lines behind, confluent at tip: hemelytra dull yellowish with blackish punctures; membrane a little clouded with dusky; rostrum piceous; a yellowish spot and line over the incisure of each foot; coxa and trochanters pale yellowish; thighs somewhat robust, anterior pair thickest and with a small spine beneath; tibiae dull yellowish. Length less than one fifth of an inch. The thorax is rectilinear on the lateral edge, as in fera nob, but in that species the anterior part of the lateral thoracic margin is not depressed, and the hemelytra are distinguished by a whitish spot. 7. P. BILOBATA.-Honey-yellow; hemelytra whitish, with a fuscous band and spot at tip of the corium. Inhabits Louisiana and Mexico. Body pale honey-yellow or dusky, somewhat hairy; antennae, terminal joint fuscous, slightly longer than subequal to the preceding and a little thicker: rostrum, second joint whitish, third dusky: thorax with the anterior lobe longer, transverse quadrate; posterior lobe not more elevated, but separated from the HETEROPTEROUS HEMIPTERA. 335 anterior body by a profound contraction, and a little wider: hemelytra whitish; corium with a fuscous band on the middle and spot at tip: thighs pale honey-yellow, fuscous towards their tips; anterior pair dilated, spinous, beneath blackish; pectus and postpectus black on the middle: venter black, margin piceous. Length one-fifth of an inch. This varies considerably in the coloring of the head and thorax, which are sometimes even obscure cinereous, with obsolete blackish lines, and on the posterior part of the thorax of many specimens are three distinct black lines. It resembles vincta nob., which, however, is not banded in the middle of the corium. 8. P. DORSALIS.-Thorax with a whitish line; three last joints of the antennae subequal. Inhabits Indiana. Body dull honey-yellow, punctured: head with an obsolete whitish line: antennae rather robust, dull rufous; joints a little [780] thicker to the tip; first joint longest; remaining joints subequal; ultimate joint of the usual form but hardly longer than the preceding one: thorax, transverse line not impressed: longitudinal whitish line not reaching the head or scutel: corium with a blackish edge on the inner side at tip; membrane with a double interrupted dusky line; abdomen dark livid, with a yellowish margin; pectus gray, darker in the middle: feet yellowish; thighs with dusky punctures; anterior pair blackish beneath, and armed with many spines. Length over one-fifth of an inch. Corresponds with the Fabrician description of Lygmus crassimanus, excepting that the anterior thighs are armed. The following species has the third and fourth joints of the antennae dilated, subovate. Subgenus PTOCHIOMERA [PLOCHIOMERA.] 9. P. NoDosus.-Two ultimate joints of the antenna thick; thorax constricted behind the middle. Inhabits United States. Body piceous-black: antennae yellowish, two ultimate joints equal, dilated, blackish; second joint not longer than the third: thorax behind the middle constricted, particularly to the lateral 336 HETEROPTEROUS HEMIPTERA. edge; behind the stricture dull yellowish, punctured: scutel with a yellow carina; hemelyra shorter than the abdomen, pale yellowish, punctured; membrane obsolete; wings imperfect: rostrum and feet honey-yellow, anterior thigh a little thicker than the others, with a few small spines beneath; anterior tibia a little ciliated at tip; a small spine on the anterior coxe. Length about one-tenth of an inch. Var. a. All beneath honey-yellow. This is a very common species in various parts of the Union, and the two dilated joints of the antennae distinguishes it readily. SALDA F. Latr. 1. S. PICEA.-Piceous-black; hemelytra entirely coriaceous. Inhabits Massachusetts. Body robust, oval, piceous-black; obviously punctured, somewhat polished: head impunctured, honey-yellow before; wider than the greatest width of the thorax: antennae black-piceous: thorax but little wider behind than before: hemelytra with the [781] corium extending nearly to the tip, the membranes being very short, not more than a mere margin; feet honey-yellow. Length under three twentieths of an inch. For this insect I am indebted to Dr. Harris, of Milton. 1. [2] S. BULLATA.-Cinereous, beneath black; feet yellowish. Inhabits United States. Body robust, oval, whitish-cinereous, with numerous, obvious, dusky, profound impressed punctures: head rather wider than the body, dusky with a longitudinal yellowish line before: antennae whitish above; last joint rufous; thorax with two small transverse impunctured spots before the middle; a little dusky on the disc: scutel with a slightly carinate line, and each side of the middle a longitudinal dull yellowish spot: hemelytra with deep punctures; corium with a blackish marginal line on the middle of tip; membrane whitish: beneath black, feet yellowish. Length to tip of hemelytra over one-tenth of an inch. This species is not uncommon in various parts of the Union. Var. a. PUNCTIPES.-Feet yellowish, with numerous black points; scutel with a yellow spot each side at base. HETEROPTEROUS HEMIPTERA. 337 3. S. ULIGINOSA.-Blackish, corium brown, margin whitish; feet yellowish. Inhabits United States. Body blackish, punctured: head with an oblique impressed line before the middle, and a yellow exterior edge: hemelytra whitish; inner portion of the corium fuliginous; sexual carina or ovipositor yellowish: rostrum and feet yellowish; posterior thighs dusky at tip. Length to tip of hemelytra over one-tenth of an inch. Resembles the preceding, but may be distinguished by its darker color. It is less common. MYODOCHA Latr. M. OPETILATA.-Blackish; feet white at base. Inhabits United States. Body piceous-black, deeply punctured: head black, impunctured, polished; neck elongated; antennae yellowish; first joint black, at tip yellowish; ultimate joint and apex of the preceding [ 782] one fuscous; thorax constricted in the middle; anterior portion impunctured: hemelytra piceous; lateral narrow margin yellowish, expanding behind into a small dot; membrane fuliginous with the nervures whitish; rostrum yellowish, first joint piceous: feet yellowish; anterior thighs dilated, with a few spines beneath beyond the middle, and with a piceous annulus near the tip. Length over seven-twentieths of an inch. This insect is not [un] common in many parts of the Union. ASTEMMA Latr. A. MAVORTIA.-Thorax cylindrical constricted before the basal margin. Inhabits United States. Body black: antennae honey-yellow: thorax, cylindrical, narrowed before to the width of the head, constricted on the basal submargin; base hardly wider than the middle: hemelytra punctured, piceous, a little shorter than the abdomen: wings imperfect: tergum rufous; margin and tip black: feet honey-yellow: anterior thighs dilated, with six or seven equal, equidistant spines: anterior cox8 with a short spine. 22 338 HETEROPTEROUS HEMIPTERA. Length over seven-twentieths of an inch. Male.-Anterior tibiae arquated towards the base and with a spine near the middle. I have taken this species in Pennsylvania, Florida, Indiana and Missouri. I have placed it ia the present genus on account of its cylindrical thorax; but it ought perhaps to form a distinct subgenus. CAPSUS F. 1. C. OCREATUS.-Sanguineous: band on the hemelytra and their membrane black. Inhabits Georgia. Body light sanguineous: thorax with two transverse impressed lines before the middle; lateral edge black; hemelytra with a narrow, black band; the lateral edge a little reflected; membraneous part purple black, with a white terminal margin: beneath immaculate: thighs simple, anterior pair about four-spined beneath at tip; tibiae blackish-piceous. Length less than two-fifths of an inch. [783 A very pretty species. It was presented to me by Mr. Oemler. I have not seen the characters of Fallen's genera Corizus and Phytocoris, and it is probable that I have included in this genus, species of both, for the antennae of a few of these are filiform. 2. C. SUCCINCTUS F. Var. a. Surface paler, with numerous black punctures, giving a dusky appearance; origin of the antennae, and a line on each side of the origin of the rostrum sanguineous. Inhabits Mexico. Antennae in this species robust filiform, the last joint being equal in diameter to the others; eyes remarkably prominent. 3. C. MIMU.-lHemelytra yellowish, with a black spot and tip: beneath whitish with sanguineous incisures. Inhabits Mexico. Head sanguineous; antenne, excepting at base and terminal joint of the rostrum black; thorax, anterior margin white, bounded by an impressed line, beyond which the surface is sanguineous to an impressed line on the middle, posterior half pale yellowish with a black central base: scutel black: hemelytra pale yellow, with a large triangular spot on the middle, and HETEROPTEROUS HEMIPTERA. 339 membranous tip, black, the latter edged with piceous: beneath white, incisures sanguineous: feet piceous black: thighs sanguineous, anterior pair two spined near the tip. Length over two-fifths of an inch. Var. a. Hemelytra black, with a pale yellowish lateral margin. Var. b. Hemelytra black, exterior and terminal margins of the corium pale yellowish. The rostrum extends beyond the base of the posterior feet. 4. C. RAPIDUS.-Reddish brown; hemelytra with a yellowish margin. Inhabits Indiana. Body dull reddish brown: head rufous: antennae black; first joint nearly half as long as the third, [second joint: Harris MS.] white on the basal half, hardly perceptibly larger at tip than at base: third joint not much shorter than the second, and with the last white at base: thorax pale yellow; anterior margin [784] rufous; a black abbreviated band behind the middle: hemelytra, corium at tip with a bright red almost sanguineous triangular spot: beneath rufous: venter dusky on the disk; tibiae pale yellowish. Length to tip of the hemelytra three-tenths of an inch. 5. C. 4-VITTATUS.-Yellow with four black vittae. Inhabits United States. Body bright yellow: head tinged with fulvous: antennae black: thorax tinged with fulvous before: four black vittm not reaching the anterior margin, the lateral ones marginal and more slender: scutel with a black spot each side at base: hemelytra with two blackish vittae on each, the exterior one having a black annulated dot at tip: membrane blackish, with a dull yellowish arc. Length to tip of hemelytra three-tenths of an inch. Inhabits a considerable part of the Union. I have taken it in the North-west Territory, Pennsylvania, Indiana, and Missouri, and Mr. Oemler sent me a specimen from Georgia. It is common. Can it be the Lygeus lineatus F. Syst. Rhyng. p. 234? 6. C. DISLOCATUS.-Pale rufous, with two black vittae dislocated on the hemelytra. Inhabits Pennsylvania. Body pale rufous or somewhat fulvous: head with a black 340 HETEROPTEROUS HEMIPTERA. mouth and band on the vertex; antenne black; basal joint at least half as long as the second; second joint distinctly larger towards the tip, base white for a short space: thorax with two black dilated lines from the middle to the base: scutel black with a yellow vitta: hemelytra with a black vittee, widely dislocated in the middle; beneath piceous with a yellow line each side: feet honey-yellow. Length to tip of hemelytra one-fourth of an inch. Occurred on the Verbascum thapsus L. 7. C. OBLINEATUS.-Thorax green with black lines; scutel with a yellow V. Inhabits United States. Body greenish, sometimes tinged with brown or clouded with obscure rufous, punctures distinct: head yellowish lineated with reddish-brown: antennae first joint not half as long as the [ 785] second; thorax greenish, more or less lineated with blackish: scutel blackish, with a lateral edge, and a line in form of a V, yellow: hemelytra with a pale spot at tip of the corium, at the apex of which is a black point: membrane a little dusky, with one or two whitish dots and arc: beneath dusky: venter with a yellowish lateral vitta, or green with a black lateral vitta: feet yellowish with two rufous annulations near the tip of the thighs. Length to tip of hemelytra over one-fifth of an inch. This is a very common species and subject to vary considerably. I have taken it in Pennsylvania, Indiana, North-west Territory, and Missouri. The thigh-bands are somewhat like those of flavovarius F. It is it much like the lineolaris Beauv. 8. C. INSITIVUS.-~Black; thorax and scutel fulvous. Inhabits Indiana. Body velvet black; antennae, first joint half as long as the second; third joint over two-thirds the length of the second, and not abruptly smaller; second joint not larger at tip than at base: thorax and scutel bright orange: pectus orange; the anterior trochanters black like the remaining part of the inferior surface and feet. Length to tip of hemelytra nearly seven-twentieths of an inch. Var. a. Head fulvous. HETEROPTEROUS HEMIPTERA. 341 Var. b. Thorax with a longitudinal black vitta. Var. c. Beneath reddish fulvous, with black feet. 9. C. GONIPHORUS.-Black, broadly margined with sanguineous. Inhabits United States. Body black: head more or less sanguineous, generally blackish at base and tip: antennae black, second joint generally a little thicker towards the tip; orbits above sometimes a little tinged with yellow; thorax very widely margined each side with sanguineous, leaving a large triangular black spot, of which the base corresponds with the base of the thorax and the tip with the tip; hemelytra, corium with a broad sanguineous lateral margin. Var. a. Black thoracic triangle deeply emarginate before. Var. b. Beneath sanguineous on each side. [786] Var. c. Thighs rufous; tibia and tarsi pale yellowish. Var. d. Thorax sanguineous, with scarcely any appearance of black. Length from one-fifth to one-fourth of an inch in the tip of the hemelytra. Not uncommon in various parts of the Union. Nuttall obtained a specimen in Arkansaw. 10. C. NUBILUS.-Varied with blackish and grayish; antennae, basal joint hairy, robust. Inhabits Indiana. Body above varied with black and grayish green; with numerous short hairs: head and thorax chiefly green; antennae, joints black at tip; basal joint at least half the length of the second, robust, hairy; second joint perceptibly a little thicker at tip: hemelytra with a grayish spot at tip of the corium, and on the membrane a whitish marginal spot, and a yellowish angulated line: beneath grayish green, a little dusky each side: feet greenish: rostrum extending between the posterior feet. Length to tip of hemelytra one-fourth of an inch. Var. a. Tip of the corium with an obscure rufous spot; beneath dusky irrorate with pale, greenish along the middle. 11. C. MEDIUS.-Sanguineous, antennae, scutel and inner portion of the hemelytra black. Inhabits Indiana. 342 HETEROPTEROUS HEMIPTERA. Body sanguineous, more or less tinged with fulvous, not distinctly punctured: head with two black vittse between the eyes and one at base of the rostrum, a transverse black line on the neck: antennae black: thorax sometimes a little dusky behind; scutel black: hemelytra black; exterior margin of the corium sanguineous: pectus a little dusky in the middle: abdomen black at tip: feet black, whitish at base: rostrum black. Length to tip of hemelytra one-fourth of an inch. Var. a. General color ochreous. Resembles goniphorus nob., but is a smaller and more slender insect, aside from other differences, such as the antenna being entirely black, the second joint not larger at tip than at base, &c. It is more closely allied to confluentus nob., which, however, has the inner margin only of the corium dusky and the feet whitish at base. [787] 12. C. INSIGNIS.-Black; head, thorax and scutel more or less sanguineous. Inhabits United States. Body black; sanguineous, with a black mark at the base of the rostrum, sometimes extending into a triangle of which the apex is at the base of the head; antennae black: first joint not half as long as the second; second joint not remarkably larger at tip; remaining joints not abruptly smaller: thorax sanguineous, sometimes with two blackish spots at base, which in some specimens are so dilated as to occupy nearly all the surface excepting the anterior margin and a re-entering angle; scutel sanguineous, with sometimes a blackish more or less dilated spot each side at base; hemelytra immaculate; beneath sanguineous varied with black: feet black. Length to tip of hemelytra about one-fourth of an inch. A specimen was sent me from Georgia by Mr. Oemler, and in my cabinet are others which I think were taken in Pennsylvania. A variety has the scutel entirely black and the thorax black excepting the anterior margin. 13. C. SCRUPEu S.-Black; thorax with two black dots, and with the scutel yellowish. Inhabits United States. Body black: head with a dull yellowish line and superior orbits, variegated at the mouth and beneath: antenna, first joint HETEROPTEROUS HEMIPTERA. 343 more than half the length of the second, and rather robust, hairy; second joint a little thicker at tip: thorax yellowish, anterior margin, two dots, and a slight dot near the posterior angles black; scutel yellowish, dusky on the middle of the base and on the basal angles: hemelytra immaculate: feet with minute pale points. Length to tip of hemelytra nearly one-fourth of an inch. Resembles insignis nob., but the second joint of the antenna of that species is not obviously thicker at tip; the first joint is naked, and much shorter than that of the present species, &c. 14. C. CIRcUMCINCTUS.-Above black; with a sanguineous margin, thoracic line and scutel. Inhabits Indiana. Body black: head beneath excepting the trophi, sanguineous: [788] thorax with the anterior and lateral narrow margins and dorsal line acute before and gradually dilating behind, sanguineous: scutel with a much dilated sanguineous line, broadest before and gradually narrowing behind, occupying the greater portion of the surface: hemelytra black with a sanguineous lateral margin, extending as far as the membranous portion: pleura and pectus sanguineous, with two black lines connecting the coxse: feet black; venter sanguineous, a black line each side connected with a large longitudinal spot behind the middle, extending to the tip of the venter. Length one-fourth of an inch. Resembles C. medius nob., but may be distinguished by the black thoracic vittse. 15. C. CONFLUENTUS [CONFLUENS].-Above sanguineous; inner margin of the corium dusky; membrane black. Inhabits Missouri. Body sanguineous: head blackish on the disk, or with two black lines confluent behind and before: thorax with a dusky transverse line before the middle: corium a little dusky on the inner margin; membrane black: scutel dark rufous or blackish: pectus and postpectus varied with blackish: feet black: ventel black at tip. Length about one-fourth of an inch. Several specimens were obtained by Nuttall in Missouri. Resembles goniphorus, but differs in many respects. 344 IETEROPTEROUS HEMIPTERA. 16. C. SUBMARGINATUS.-Black; disc fulvous, hemelytra with whitish vittae. Inhabits United States. Body oblong, blackish; not distinctly punctured; head dull fulvous, disc black: antennae black; first joint hardly one-third the length of the second; second joint cylindric: thorax black; disk dull fulvous: hemelytra with a broad submarginal whitish vitta, originating at the humerus and curving outwards at tip: beneath dull fulvous: feet dull fulvous. Length one-fifth of an inch. I obtained one specimen in Missouri and another in Indiana. 17. C. GEMINUS. —Black; a yellowish spot at tip of the corium. Inhabits Indiana. [ 789 ] Body black; punctures distinct: antennae, basal joint white; remaining joints: hemelytra at tip of the corium with a large whitish yellow spot; rostrum white: feet entirely greenishwhite. Length nearly one-fourth of an inch. The contrast between the hemelytral spot and the general color, gives it a little the appearance of C. gothicus F., but it cannot be confounded with that insect. 18. C. STYGICUS.-Black; tibiae and tarsi whitish. Inhabits Indiana. Body deep black, polished; minutely punctured or somewhat rugulose: antenne, first joint less than half the length of the second: second joint very slightly larger at tip; third joint three-fourths the length of the second; incisure between the first and second joints whitish: feet with the trochanters, knees, tarsi, excepting at tip, and tibiae, excepting the base of the posterior pair, white. Length over three-twentieths of an inch. 13. C. FUSIFORMIS.-Blackish, with three yellowish vittae; antennae, second joint fusiform. Inhabits United States. Body rather slender, blackish; antennae, first joint rufous, cylindric; second joint robust, fusiform, more slender at base; third joint with a white base: thorax, anterior edge white: scu HETEROPTEROUS HEMIPTERA. 345 tel with a dilated white line: hemelytra, on the lateral and inner margins of the corium whitish: abdomen at base and feet rufous Length less than one-fourth of an inch. The lateral margin of the corium is sometimes yellowishbrown. The base of the abdomen in the recent specimen is often sanguineous. 20. C. VITRIPENNIS.-Yellowish; hemelytra hyaline; subbifasciate. Inhabits United States. Body oblong, pale greenish-yellow: head impunctured, neck blackish: antennae, first joint three-fourths as long as the second, pale rufous; second joint not obviously larger at tip; third joint very short, whitish: thorax with large punctures; scutel yellow, black at base: hemelytra hyaline, the corium being as transparent as the membrane, with a common dusky vitta, curved outward [ 790] behind the middle so as to form a band; beyond is another oblique arquated band originating at the middle of the preceding one: beneath greenish. Length nearly one-fifth of an inch. A male in my collection has a large blackish spot on the base of the thorax. I have taken it on the oak, in August, in Pennsylvania. I have also found an individual in Indiana. 21. C. INVITUS.-Dark livid or blackish; beneath green with a blackish lateral vitta. Inhabits Indiana. Body dark brownish livid or blackish, with numerous short prostrate yellow hairs: head dull yellowish, with an impressed longitudinal line: antennae, first joint less than half the length of the second, which is hardly perceptibly larger at tip; third joint more than half the length of the second, and as long again as the fourth: thorax with small transversely confluent, superficial punctures: scutel with a pale obsolete vitta, beyond the middle: hemelytra with a whitish spot at tip of the corium and a greenish lateral edge: beneath green, with a broad lateral black vitta: feet green: posterior thighs black towards the tip. Length nearly one-fourth of an inch. 22. C. IMBECILIs.-Blackish; antennae second joint white at tip; hemelytra, with a white band before the middle and spot at the coriaceous tip. 346 HETEROPTEROUS HEMIPTERA. Inhabits Indiana. Body blackish-piceous; clypeus at tip and rostellum piceous: antennae first joint dull rufous, terminal third of the second joint white: thorax, anterior segment with an impressed longitudinal line: hemelytra, with a white band before the middle, and a rufous spot near the tip of the coriaceous portion; tergum pale; feet pale rufous: coxae, intermediate and posterior pairs white. Length under one-fifth of an inch. 23. C. IRRORATUS.-White; hemelytra and posterior thighs with green points. Inhabits Indiana. Body white, tinged with green: antennae, first joint with green each side; remaining joints very pale brownish, the second black at the basal incisure: thorax with a transverse indented line [791] on the anterior submargin, connected with the anterior edge by an indented line from its middle: hemelytra, except on the membraneous portion, irrorate with green points: posterior thighs on the superior edge, with five or six green points. Length less than one-fifth of an inch. 24. C. CHLORIONIS.-Green; first and last joints of the antenna short, equal. Inhabits Indiana. Body green, immaculate, with numerous short hairs, impunctured: antennae pale; first joint hardly one-fourth the length of the second; second joint cylindric; third joint two-thirds the length of the second; last joint nearly half as long as the third: thorax a little tinged with yellowish: rostrum, feet yellowish. Length nearly three-twentieths of an inch. 25. C. COLON.-Grayish; thorax with two black dots. Inhabits Indiana. Body brownish-gray, with numerous short yellowish hairs; antenna, basal joint robust, narrowed at base, two-thirds the length of the second; second joint very slightly thicker at tip, whitish in the middle and for a short space at base, and blackish at tip: third and fourth joints as long as the first, whitish: thorax with a black orbicular dot each side of the middle: hemelytra with from three to five obsolete brownish spots on the HETEROPTEROUS HEMIPTERA. 347 corium, and two or three on the membrane: beneath dusky, varied with yellowish lineations on each side of the venter: feet yellowish thighs dusky at tip; tibia with about two dusky annulations. Length over one-fourth of an inch. This species, like many others, is subject to vary. It is sometimes yellowish, variegated with brownish, but the thoracic orbicular spots and the annulations of the second joint of the antennae distinguish it. The following species having large and very prominent eyes; antennae, excepting the first joint, remarkably slender and filiform, situated on the front above an imaginary line drawn between the anterior angles of the eyes, and with elongated feet, may be separated under the subgeneric name Cylapus. [792] 26. C. TENUICORNIS.-Blackish: hemelytra one or two spotted with whitish; antennae, second joint white at tip; thighs annulated. Inhabits Indiana. Head somewhat variegated with yellowish; almost vertical, deeply impressed between the eyes, and with an impressed line: eyes very prominent: antennae elongated, first joint robust, black; remaining joints slightly thickened at tip and terminating in a white spot: thorax punctured, anterior margin somewhat elevated, with an impressed line; an obsolete slender pale line proceeds thence to the base: scutel punctured, with a hardly elevated, carinated line, tip obsoletely whitish: hemelytra punctured; an obsolete interrupted and abbreviated band near the middle and a rather more distinct band near the tip of the coriaceous portions, whitish; beneath piceous; a triangular spot over the interval between the intermediate and posterior feet, pale green: feet long, pale reddish-brown; thighs biannulate with whitish beyond the middle: tibiae with an obsolete annulus a little beyond the middle. Length one-fifth of an inch. Readily distinguishable by the tenity [tenuity] of the antennae and the very prominent eyes; the head also is almost vertical and the feet are long. In the magnitude and prominence of the eyes it resembles Salda and Acanthia. 348 HETEROPTEROUS HEMIPTERA. 27. C. BRACTATUS.-Black; hemelytra with numerous golden points. Inhabits Indiana. Body black: antennas first joint nearly one-fourth the length of the second; dull honey-yellow at base; second joint rather long, very slightly larger towards the tip, dull honey-yellow in the middle: hemelytra with numerous small spots consisting each of a few golden hairs; membrane fuliginous: knees tibiae and tarsi yellowish. Length less than one-tenth of an inch. It is a very small species often in company with the preceding. MIRIS F. 1. M. VAGANS F.-I have compared our specimens with those of Europe and do not observe a specific difference. It is common. [793] 2. M. DoRsALIS.-Pale yellowish-rufous, immaculate; head with an abbreviated indented line; antennas rather robust, tapering, rufous; first joint rather thick, as long as the third; second joint about three times as long as the third, cylindric; tergun pale sanguineous excepting the margin; sexual carina elevated, single. Length less than three-tenths of an inch. Inhabits United States. The small hairs of the antennae are not equal to the diameter of their respective joints. TINGIS Fabr. 1. T. CILIATA.-Dilated; nervures and edge ciliate with short spines: hemelytral lateral edge rectilinear. Inhabits United States. Whitish, reticulate with nervures on which are short spines; widely margined; color whitish; thorax with an inflated carina before, extending over the head; sides dilated, bullate, a little elevated, lateral and anterior margins ciliate with short spines: scutel with the lateral margin elevated, and an acute, highly elevated carina on the middle: hemelytra dilated, with an inflated carina before the middle of each, on which is a brown spot; edge ciliate with short spines, excepting the posterior HETEROPTEROUS HEMIPTERA. 349 third and tip, which are unarmed rectilinear; beneath piceousblack: feet pale yellowish. Length to the tip of hemelytra three-twentieths of an inch. The larva is spinous, fuscous, with a large yellowish spot each side of the middle, and before the middle a broad yellowish vitta. The species is very common. 2. T. CINEREA.-Not dilated, hemelytra with six or seven marginal spots. Inhabits United States. Body gray; not dilated on the margin; with much dilated punctures; head deeply bifid at tip and with a short robust spine between the eye and antennae; antenna, basal joint spherical, abruptly smaller at base; second joint not longer than the first, and less dilated; thorax with four elevated lines, obsolete behind; anterior lateral margin a little dilated: hemelytra covered, like the thorax, with dilated, approximate punctures, [ 794] and having on the lateral margin a series of six or seven black spots; beneath grayish, more or less varied with brown: venter brownish, with spots or lines of grayish. Length to tip of hemelytra more than one-tenth of an inch. In form much resembling T. cardui F. It is not uncommon. 3. T. MUTICA.-Thorax and scutel with a single line; hemelytra with a brown spot. Inhabits Indiana. Body grayish-brown, unarmed, not dilated on the margin; with much dilated punctures: antennae, second joint rather thicker than the first: thorax, with a paler, slender, glabrous line, and paler line each side: scutel with a paler line on the middle, and a short one each side, not elevated; hemelytra like the thorax with dilated approximate punctures; on the middle an obvious darker, irregular spot or band; membrane reticulate with brown; beneath dusky: tibiae paler. Length to tip of hemelytra over- one-tenth of an inch. 4. T. PLEXUS.-Thorax and scutel trilineate; hemelytra obscurely and minutely reticulate. Inhabits United States. Body brownish, more or less tinged with yellow, with dilated 350 HETEROPTEROUS HEMIPTERA. approximate punctures; head with three elevated lines: thorax not dilated on the sides; with three elevated lines: scutel also with three elevated lines: hemelytra with small, symmetrical, orbicular reticulations of nervures; two series of which on the lateral margin are a little larger; those near the inner margin of the membrane also a little larger. Length to tip of hemelytra nearly three-twentieths of an inch. 5. T. ARCUATA.-Dilated; nervures and edge ciliate with short spines; lateral edge of the hemelytra arquated. Inhabits United States. Whitish with brown spots; dilated; edge, excepting behind, and many of the nervures, ciliated with short spines; nervures pale brownish: thorax with an inflated carina, extending over the head, with one or two large brown spots; sides dilated, bullate, with a brown spot: scutel with an acute, highly elevated carina on the middle, on which is a brown transverse line: hemelytra with an inflated carina before the middle of each, [795] on which is a brown spot; and a brown band before the carina, and another on the terminal margin: lateral edge concavely arquated, without spines on its posterior third and tip: tergum and beneath black; feet yellowish. Length to tip of hemelytra nearly three-tenths of an inch. Resembles ciliata N., but may be distinguished by the brown bands and the arquated exterior edge of the hemelytra. ARADUS Fabr. 1. A. CRENATUS.-Antennae, second and third joints subequal cylindrical [;] edge of the abdomen obtusely crenated. Inhabits United States. Body dull brown or yellowish-brown; head inequal, with two longitudinal indented lines: an acute projecting point before each eye; tip prominent, obtuse: antennae, second joint cylindric, hardly longer than the third, which is cylindrical, slightly narrower at base: fourth joint a little longer than the third, rather thicker at tip and obtuse: thorax quadrilineate; sides widely rounded, obviously recurved, and irregularly dentate on the edge: scutel, margin elevated; hemelytra minutely dentate on the exterior basal edge: tergum rufous, margin cinereous with blackish angular spots: edge rather deeply crenate: be HETEROPTEROUS HEMIPTERA. 351 neath dull rufous in the middle: feet yellowish, annulate with brownish. Length nearly nine-twentieths of an inch. Much larger than quadrilineatus nob., which has short and robust antennae, the second joint smaller at base, &c. Mr. Nuttall presented me with an individual taken in Missouri, and I possess other specimens obtained in this State. 2. A. ACUTUS.-Third and fourth joints of the antennae together, two-thirds the length of the second. Inhabits Florida and Indiana. Body fuscous: head inequal, with two longitudinal, indented lines; an acute, projecting point before each eye: tip prominent, obtuse: antennae black; second joint elongated, narrower at base: third and fourth joints equal; taken together not more than two-thirds the length of the second: thorax quadrilineate, three or four very obvious denticulations on the anterior part [796] of the lateral edge; scutel on the edge a little elevated; hemelytra on the humerus dull yellowish with a denticulated,edge; tergum with quadrate cinereous spots in a series within the margin; margin with obsolete pale spots and incisures: tibioe paler than the thighs: venter tinged with rufous. Length over seven-twentieths of an inch. Like planus Fabr.; but the second joint of the antennae of that insect is shorter, cylindric, and the third and fourth joints altogether are nearly equal in length to the third. It is abundant in Indiana as well as in Florida and varies in having the nervures of the hemelytral membrane margined with whitish. 3. A. SIMILIS.-Third and fourth joints of the antennae together as long as the second. Inhabits United States. Body brown: head inequal, with two longitudinal, indented lines: an acute, projecting point before each eye; tip prominent obtuse: antennae,, second joint cylindrical, very slightly thicker towards the tip; third joint whitish, cylindric half as long as the second; fourth joint fuscous, a little shorter than the third and narrowed a little toward the base: thorax quadrilineate, lateral edge dentate: tergum slightly serrate'on the lateral edge: beneath fuscous on the disk: feet brownish. 352 HETEROPTEROUS HEMIPTERA. Length over one-fourth of an inch. Resembles the acutus nob., which however has the second joint of the antennae longer and the ultimate joints equal. It still more resembles planus F., but the antennae of that species are obviously more robust. The penultimate joint of the antennae is sometimes very dull and almost obsoletely whitish. 2. A. RECTIs —- Hemelytra not dilated at the humerus. Inhabits Missouri and Florida. Body fuscous, rather slender: head with an indented line each side; an acute, projecting point before each eye; tip prominent, obtuse; antennae, joints very slightly smaller towards the base; second joint nearly as long as the third and fourth together; the latter a little shorter than the third: thorax quadrilineate and having the thicker abbreviated line near the exterior angle very distinct; scutel with the edge considerably elevated: [797] hemelytra, corium rather long, the humerus not dilated, but rectilinear with the remaining part of the edge; grayish with fuscous nervures. Length over three-twentieths of an inch. A small species; sufficiently distinct from the preceding by the rectilinear edge of the hemelytra. 5. A. ORNATUS.-Hemelytra, abdomen and feet pale; antennae robust. Inhabits Indiana. Body blackish-fuscous: head with the process before the eyes, prominent, acute; antennae robust: thorax rather short; sides depressed and a little reflected; edge regularly rounded: posterior margin with about three glabrous, polished spots: scutel concave towards the tip: hemelytra whitish, more or less spotted with brown; humerus prominent, rounded: abdomen pale rufous, margin paler, with blackish lines: feet yellowish, thighs at base and tibiae blackish, but paler on the posterior pairs. Length under one-fourth of an inch. Resembles quadrilineatus nob., but the polished thoracic spots and the much more prominent and rounded humerus, not to mention its coloring, readily distinguishes it. 6. A. JEQUALIS.-Second and third joints of the antennae equal, thoracic margin reflected. HETEROPTEROUS HEMIPTERA. 353 Inhabits Indiana. Body fuscous: head with the process before the eyes acute and rather prominent; nasus somewhat robust: antennae reddishbrown, second and third joints equal; fourth joint two-thirds the length of the third: thorax with two approximate elevated lines and a less obvious lateral line which is obsolete before; lateral margin rather widely reflected, yellowish: hemelytra varied a little with dull yellowish: humerus yellowish, dilated; tergum with rather broad transverse rufous lines on the margin; rostrum longer than the head: venter, on the margin like the margin of the tergum. Length seven-twentieths of an inch. The equality in length of the second and third joints of the antennae, distinguishes this species. [ 798 ] 7. A. GRANULATUS.-Second joint of the antennae shorter than the third; corium but little longer than the scutel, edge of the thorax obtusely emarginate. Inhabits Florida and Indiana. Body fuscous, densely granulated: head with an impressed line each side near the eyes and two near the middle, an acute point before the eyes and an obtuse tip: antennae rather short, second and fourth joints equal; third joint longest: thorax slightly lineated before, but without any appearance of an elevated line behind: lateral edge obtusely emarginate before the middle: scutel broad, obtuse at tip: hemelytra narrower than the abdomen; humerus not dilated; nervures distinct; corium but little longer than the scutel, with rather prominent nervures; membrane dull whitish: wings as long as the hemelytra: tergum, beneath the wings, rufous: rostrum not longer than the head. Length one-fifth of an inch. I found it common in Florida. With the two following species, it possesses many characters in common with Aneurus, and may be considered as the connecting link with that genus. It has the short, dilated rostrum; the second joint of the antennae shorter than the third; the wide, obtuse scutel; the short feet, and the anterior feet set wide apart as in that genus, but the appearance of the head and the structure of the hemelytra correspond with Aradus, excepting the brevity of the corium. 23 354 HETEROPTEROUS HEMIPTERA. 8. A. EMARGINATUS.-Thorax obtusely emarginate before the middle, edge without elevated lines behind. Inhabits Mexico. Body black: head with an acute tubercle at base of the antennae, and another behind the eye: antennae, first joint more robust than the others, rather suddenly attenuated at base, somewhat larger than the apical prominence of the head; second joint shorter than the first, and not longer than the last; third joint longest; terminal joint attenuated at base, pale at tip: thorax transversely impressed in the middle, the impression terminating each side in an obtuse emargination, edge very minutely crenate; anterior margin slightly quadrilobate; hemelytra [ 799] at the termination obliquely rectilinear; corium but little longer than the scutel. Length nearly three-tenths of an inch. The thorax has no appearance of elevated lines, but these are substituted by four slightly elevated obtuse bulle on the anterior margin. This species is closely allied to grantlatus nob., but is a much larger insect. 9. [A.] LOBATUS. —Thorax acutely emarginate before the middle of the edge, without elevated lines behind. Inhabits Indiana. Body fuscous, granulated: head with the projection before the eyes rather obtuse, tip robust, obtuse; antennae, third joint longer than the second: thorax quadrilineate before the middle; lateral edge acutely emarginate before the middle, anterior angles lobiform: scutel with an elevated line and lateral edge: hemelytra with a short corium; much narrower than the tergum: rostrum not longer than the head. Length seven-twentieths of an inch. Resembles granulatus and emnarginatus nob., but the nasus and angulated projection before the eye are much more obtuse, and the emargination of the lateral edge of the thorax is acute and more profound, and the thoracic lineations are in much higher relief. The species is uncommon. ANEURUS Curtis. A. POLITUS.-Rufous; tubercle before the eyes short obtuse. Inhabits Florida. HETEROPTEROUS HEMIPTERA. 355 Body rufous, somewhat polished; minutely rugulous, much depressed: head fuscous, excepting the prominent lobe or nasus which is subacute, tubercle before the eyes scarcely prominent, obtuse: thorax brown behind; anterior angles rather prominent and rounded; lateral edge widely emarginate: scutel brown, convex; hemelytra brown at base, fuliginous towards the tip. Length three-twentieths of an inch. Resembles the levis Fabr., but the hemelytra are not dull white on the margin; and the tubercle before the eyes is not prominent, as represented by Curtis. [800] REDUVIUS Fabr. 1. R. LINITARIS.-Black, thoracic and abdominal margin, basal margin of the hemelytra, coxae and pectoral spots sanguineous. Inhabits Indiana. Body black, somewhat hairy: thorax transversely impressed before the middle; a narrow sanguineous margin all around: scutel with a narrow sanguineous margin: hemelytra with the basal third of the costal edge dilating a little on the humerus, sanguineous: abdomen on the superior and inferior margin sanguineous: feet anterior pairs, trochanters and above each foot on the pectus, sanguineous; posterior tibiae slightly curved near the tip, and with a hairy dilation nearly equal to the diameter of the tibiae. Length to tip of hemelytra seven-tenths of an inch. Both this and the following species have many points of agreement with the Fabrician description of crassipes, which, however, is " fuscous:" "thorax margine laterali et postico tenuissime rufo. Scutellum nigrum." It is the anterior pairs of the tibiae that are robust and they exhibit on the anterior tip a groove to receive the tarsi. [Belongs to Apiomerus.-UHLER.] 2. R. VENTRALIS.-Brown-black; posterior margin of the elytra, and abdomen sanguineous, the latter with lateral black spots and lateral vittse beneath. Inhabits Missouri. Body brown-black, somewhat hairy: thorax transversely impressed before the middle; anterior portion inequal; posterior portion margined each side and behind narrowly with sanguine 356 HETEROPTEROUS HEMIPTERA. ous: hemelytra with a rufous corium: abdomen sanguineous, with large marginal quadrate black spots above and beneath and dilated lateral black ventral vittae: coxse sanguineous: not remarkably distinguished. Length about two-fifths of an inch. The feet are not remarkably dilated as in crassipes F.: the species is also described to have " elytra fusca basi parum rufa" "corpus nigrum pectore utrinque punctis, abdomine margine rubris" "pedes incrassati," &c. I owe it to the kindness of Nuttall. 3. R. ACUMINATUS. Yellow, dusky along the middle; head vesicular behind; hairy. Inhabits Indiana. [801] Body honey-yellow, very hairy: head short, almost rounded, sub-equally divided by a deeply indented line behind the eyes; posterior lobe vesicular, somewhat inflated, short; antennae fuscous, pale at base: rostrum, basal joint longer than the second and third together: thorax subequally divided by a deeply indented line; anterior lobe somewhat longer, deeply divided by a longitudinal line; posterior portion with an indented line before, and a blackish disk: scutel with three elevated lines and termiminating in an acuminated spine; hemelytra dusky along the middle; anterior tibiae a litle dilated at tip: beneath with a broad, piceous vitta each side and a carinate line along the middle. Length one fifth of an inch. When alarmed, the basal joint of the antennae, which is nearly as long as the head and thorax, is thrown backward, and the second joint deflected. It is common. 4. R. BICEPS.-Yellowish; hemelytra whitish: head bilobate. Inhabits Pennsylvania. Body a little hairy: head elongated; profoundly impressed behind the eyes, bilobate: rostrum robust: second joint longest: antenna second and third joints equal, fourth hardly shorter, and no less robust; basal joint shorter: thorax with two transverse impressed lines and a slightly indented longitudinal one: hemelytra and wings whitish; anterior feet somewhat robust; their tibiae gradually dilated to the tip. Length to tip of hemelytra over one-tenth of an inch. The impressed line of the head is remarkably deep, giving the HETEROPTEROUS HEMIPTERA. 357 appearance of a double head; the impressed line of the thorax is on the posterior submargin, and the anterior impressed line is very obvious. 5. R. INSIDIOSUS.-Black; hemelytra pale at base of the corium; membrane milky-white. Inhabits United States. Body very small, black, punctured; antenna whitish, somewhat hairy; basal joint blackish; second joint longer than the third; fourth joint as long as the third, a little dilated and compressed: thorax minutely rugulous transversely and with a slight transverse [802] indentation: scutel transversely rugulous: hemelytra yellowish-white on the corium at tip of which is a large, triangular, blackish spot; membrane milky-white: feet whitish; thighs, excepting their tips, black. Length more than one-twentieth of an inch. This is a very common little species in almost every part of the Union, on flowers. The large triangular black hemelytra spots are very conspicuous. The antennae are rather short and robust. The lateral edge of the thorax is not interrupted. 6. R. MUSCULUS.-Black; hemelytra white, corium and membrane blackish at tips; feet honey-yellow. Inhabits North-west Territory. Body small, unarmed, black, somewhat polished: antennae: thorax a little contracted on the anterior margin, almost like a short neck; on the middle an obtusely impressed, but not profound band, behind which the surface is minutely wrinkled; posterior margin deeply and obtusely emarginated: scutel rugose towards the depressed tip: hemelytra, whitish, hyaline; corium with a large blackish spot occupying the posterior half; membrane dusky towards the tip: feet honey-yellow; tarsi dusky at tip. Length to tip of hemelytra over three-twentieths of an inch. Resembles the preceding, but it is larger, the head more elongated and otherwise very distinct. 7. R. PECTORALIS nob.-New species of N. Amer. Ins. found by J. Barabino. [Ante, p. 306.] A complicated spine beneath the eye and a projecting spine each side of the pectus before. 358 HETEROPTEROUS HEMIPTERA. PETALOCHEIRUS Beauv. 1. P. CRUCIATUS.-Sanguineous, thoracic spot, scutel and hemelytra black; scutel bifid at tip. Inhabits United States. Body sanguineous: head black behind the eyes; antennae black: thorax with a longitudinal impressed line extending nearly to the base and forming a cruciate mark with the transverse line; an irregular black spot on the disk; scutel rugulose, lip [tip] orbicularly bifid: hemelytra black; humerus yellowish: pectus and postpectus black: feet whitish; thighs at tip and tibiae [803] at tip and base blackish; tarsi dusky; rostrum pale, second joint blackish. Length half an inch. I have taken this insect in Indiana and Missouri, and Mr. Oemler sent me a specimen from Georgia. [This is Ectrychotes bicolor H. Schaffer, 8, tab. 266, fig. 822.U HLER.] 2. P. BIGUTTATUS nob., New Sp. of N. Amer. Ins. found by J. Barabino, p. 13. [Ante, p. 307.] Hemelytra with a yellow spot beyond the middle and another at base. NABIS Latr. 1. N. PURCIS Drury (Cimex) Ins. V. p. 63, pl. 45, f. 4. I took many specimens in Georgia and Florida. [Belongs to Hammatocerus-UHLER.] 2. N. NOVENARIUS nob., (Reduvius) Jour. Acad. Nat. Sci. [Ante, p. 71. Belongs to Prionotus.-UHLER.] PLOIARIA Scop. 1. P. FRATERNA.-Brown; feet immaculate; hemelytra as long as the head and thorax. Inhabits New Orleans. Body slender and elongated, brown; resembling P. —; Amer. Entom. v. 3, pl. 47, [Ante, p. 106,] but is smaller; feet immaculate: largest spine of the anterior feet white, with a black tip; tibiae blackish: head paler than the thorax, with a double brown line diverging anteriorly before the transversed impressed HETEROPTEROUS HEMIPTERA. 359 line: posterior portion pale; hemelytrahardly longer than the anterior portion of the body. Length to tip of hemelytra seven-tenths of an inch. This insect was sent to me by Mr. Barabino. It closely resembles our common species represented in the Am. Entom. vol. 3, pl. 47, but is much smaller, and the feet have no appearance of annulations. 3. [2] P. ERRABUNDA.-This is so closely allied to P. vagabunda Fabr., that I give it a distinct name with much hesitation; nevertheless the anterior thighs are somewhat less elongated, with the two basal spines much more prominent than the others; the abdomen is immaculate, the annulations of the feet are much more obvious; the lateral carinate line of the thorax has a prominence like an obtuse spine before: in these characters it differs from the vagabunda: but in the spotted appearance of the hemelytra and the form and magnitude of the scutellar spines it resembles that species. [A synonym of this species is P. maculata Hald. Proc. Ac. Nat. Sc. Phil., 3, 151.-UHLER.] [804] ACANTHIA Schr. Latr. 1. A. LIGATA.-Black, with yellowish spots; exterior margin of the thorax and hemelytra yellowish. Inhabits Indiana. Body black: head with yellow orbits; thorax with an indented spot before the middle: lateral margin yellow with a black edge; at base two yellow spots: scutel with a yellow spot on the lateral margin near the base and two other spots or abbreviated lines near the tip: hemelytra with yellow spots; a yellow lateral margin and black edge; membrane fuliginous, with a transverse series of dull yellowish, oblong spots, and a yellow marginal spot: feet pale with one or two longitudinal black lines, which on the thighs are more or less dilated: venter, segments on their posterior margins pale yellow. Length to tip of hemelytra one-fourth of an inch. 2. A. HIRTA.-Hairy, brownish, darker before. Inhabits Indiana. Body densely hairy, dull yellowish-brown or fuliginous: head a. little darker at base: thorax blackish before the transverse line: 360 IIETEROPTEROUS HEMIPTERA. scutel blackish: hemelytra conspicuously hairy, with a [few] dull yellowish spots, as well on the membrane as the corium: pectus a little varied with black; remaining inferior surface including the feet immaculate. Length to tip of hemelytra under one-fourth of an inch. This species may be recognised by its more obviously hairy vesture; its color is also paler than usual in this genus. 3. A. LUGUBRIS.-Black; membrane of the hemelytra, obtusely [obsoletely] spotted. Inhabits Missouri. Body black, subopake: head between the antennae with three yellowish points: antennae first and second joints dull yellowish before: thorax and scutel immaculate: hemelytra immaculate on the corium, or with an obsolete dull yellowish point on the middle of the tip; membrane with two or three obsolete dull yellowish spots, [on the?] inner margin and tip: beneath with a yellowish spot before each of the anterior feet; feet pale yellowish; tibiae and tarsi more dusky: thighs, particularly the anterior and posterior pairs, with a more or less dilated black [805] line toward their tips: coxae black: anterior pair yellowish at tip, remaining pairs slightly tipped with yellowish. Length to tip of hemelytra less than three-tenths of an inch. For this species I am indebted to Nuttall, who obtained it in Missouri. 4. A. HUMULIS [HUMILIS].-Black, hemelytra with a yellowish margin and three spots. Inhabits Florida. Body black, with short, scattered hairs: head with a transverse white line before and a longitudinal yellowish line on the nasus: antennae fuscous, basal joint whitish before: thorax with an impressed puncture before the impressed transverse line: hemelytra with the exterior margin [and] three rather large spots along the sub-margin, yellowish, membrane dull yellowish, with black nervures and fuscous oblong spots in a transverse series alternating with the nervures: feet and rostrum yellowish. Length to tip of hemelytra one-tenth of an inch. The interstitialis nob., which this resembles, has the exterior margin of the hemelytra black and is much larger; it has also a HETEROPTEROUS HEMIPTERA. 361 large spot on the middle of the tip of the hemelytra, that does not exist in this species. The interstitialis is much like the littoralis Fabr., but in none of my specimens of the latter is there a large yellowish spot on the middle of the tip of the corium. 5. A. CONFLUENTA [CONFLUENS].-Black; membrane of the hemelytra with a blackish band. Inhabits United States. Antennae pale atbase: head and thorax immaculate: corium with a large marginal spot before the middle and another at tip; two small spots [where?]; membrane with fuscous nervures and a continuous, blackish, arquated band on the middle: feet whitish; tarsi with blackish tips; thighs with an obsolete brown line: venter whitish at tip. Length to tip of hemelytra one-fourth of an inch. The band of the membrane does not reach the inner margin. It is equal in size to liyata. [806] HYDROMETRA Latr. H. LINEATA.-FUSCOUS; hemelytra dull whitish with black nervures. Inhabits United States. Body fuscous, or brown, more or less deep: hemelytra dull whitish or dusky, with black nervures: wings opake white, with black nervures: tergum pale, quadrilineate with black; two of the lines on the edge and the interval betweeen the two inner lines dull whitish or bright yellow; the incisures of the segments more or less black: beneath and feet obscure yellowish: thorax with a more or less obvious pale line. Length seven-twentieths of an inch. This is very much like the stagnorum F., but the hemelytra are not testaceous, and there is no thoracic impressed line. [iMale?] Body blued-black; thorax with a pale line; antennas and feet dark honey-yellow; tergum and venter without lines. Var. a. australis. Head beyond the eyes a little longer and a little more dilated at tip; second joint of the antennse a little more dilated at tip: abdomen with five lateral whitish points. Inhabits New Orleans. 362 HETEROPTEROUS HEMIPTERA. GERRIS Latr. 1. G. REMIGIS.-Dark olivaceous; thorax rounded behind, without an elevated line. Inhabits United States. Body dark brownish-olivaceous; thorax transversely rugulose without much appearance of a dorsal raised line: a dull ochraceous and indented line before; posterior margin regularly and obtusely rounded with but a very narrow depressed margin: tergum with a black line on the middle, in which is a series of obsolete gray lines; lateral margin with a series of grayish points or short transverse lines: beneath with a silvery sericeous reflection, an impressed line on the anterior part of the pectus behind the anterior feet. Length half an inch. A great similarity exists between some of the species of this genus, and I have ventured to separate this species from the paludum F., which is said to have an elevated line on the thorax and another on the pectus and postpectus. [807] The thorax on the posterior segment is generally obtusely tinged with dull yellowish, with a blackish longitudinal line in the middle. Var. a. Thoracic elevated line rather more obvious: grey lines of the middle of the tergum more distinct. Inhabits Mexico. 2. G. MARGINATUS.-Thorax with an elevated line: behind with an obvious depressed margin; abdominal margin dull rufous. Inhabits United States. Body blackish, more or less tinged with olivaceous: thorax with a raised line, more elevated behind; lateral indented edge dull rufous; posterior depressed margin rather wide and very obvious: abdomen with the margin dull rufous: feet dull rufous; anterior thighs with a blackish line on both sides; coxae dull rufous beneath: beneath with a slightly elevated line, terminating anteriorly in a depressed one; blackish, with a silvery reflection. Length over seven-twentieths of an inch. HETEROPTEROUS HEMIPTERA. 363 Much smaller than the preceding, and more slender, of a darker color; abdominal margin of a different color, and the posterior margin of the thorax is broadly depressed. I obtained an individual, and Nuttall gave [me] one which he took in Missouri. 3. G. CANALICULATUS.-Above brownish; beneath yellowish, with a pectoral groove extending to the venter. Inhabits Georgia. Head dark brown, with a silvery line from the eye to the antennas: antennae honey-yellowish and feet of the same color, the tarsi dusky: thorax dull yellowish or dull fulvous, darker each side, with a dorsal dull fulvous line and lateral margin, beneath which is a double black line enclosing a silvery one: hemelytra brown with black nervures: tergum fulvous with a black lateral line and yellowish margin: terminal spines even with the tip of the tail: beneath yellowish fulvous: pectus with an obvious groove, extending to the venter, and in which behind is a blackish line. Length less than two-fifths of an inch. [808] Differs from marginatus nob. in having an obvious groove beneath extending to the venter. The whole inferior [surface] also is yellowish, with the usual silvery reflection: the posterior depressed margin of the thorax is not so wide as in that species, and has no raised line. NAUCORIS Geoff. Latr. 1. N. PROFUNDA.-Oval, dark greenish, rugulose; inferior membrane velvet black. Inhabits Mexico. The whole surface is covered with a minute, confused roughness; the form is rather dilated oval: thorax profoundly emarginate to receive the head; posterior submarginal line very distinct; lateral margin depressed: posterior angles obtusely rounded: hemelytra with the covered membrane deep velvet black: tergum dull yellowish with a blackish line on the edge and spots on the margin: beneath blackish fuscous: feet greenish; anterior pair of thighs dilated, triangular, ciliated with golden hair. Length two-fifths of an inch. 364 HETEROPTEROUS HEMIPTERA. The femorata Beauv., is less dilated, polished, the head larger, and less profoundly inserted into the thorax, the thorax is also not marginally depressed and its angles are not obtusely rounded as in this species. It was taken by Wmn. Bennett and presented to me by Mr. Maclure. 2. N. STYGICA.-Black, front quadrilineate. Inhabits Georgia. Body oval, brown-black, rather rough: head crenate on the front so as to form four denticulations: eyes rounded, rather prominent: thorax not emarginate before, with a slightly depressed margin behind; anterior thighs dilated triangular: hemelytra with oblique lines; they appear united at the suture. Length three-tenths of an inch. I have but one mutilated specimen which was sent to me by Mr. Oemler. If I am not deceived by this specimen, the species is apterous and the hemelytra are united by a rectilinear suture, which will require the formation of a separate genus which may be named Nerthra. [809] BELOSTOMA Latr. 1. B. FLUMINEA.-Fuscous; head before the eyes attenuated; feet spotted. Inhabits United States. Body rather long ovate, grayish or fuscous: head rapidly tapering from the anterior canthus of the eyes to the tip, forming in that part an equilateral triangle, of which the tip is obtuse, but less than one-fourth the breadth of the space between the eyes: the anterior lobe or nasus hardly reaches the line between the anterior canthus of the eyes: thorax a little emarginate before, and less obviously so on each side; posterior to the transverse suture and a narrow lateral margin, paler: tibie and and tarsi each with three black spots or interrupted annulations. Length from seven-tenths to four-fifths of an inch. This species is no doubt related to B. rustica Fabr., but he describes the thorax of that species as being white before. Like that species, the female carries her eggs upon her back. Stoll's figure of the rustica represents it of a short ovate form. It has not an extensive range. I purchased a specimen taken New Haven, one was sent to me from Georgia by Mr. Oemler of HETEROPTEROUS HEMIPTERA. 365 Savannah and it is found in Pennsylvania and in Indiana and Louisiana. Var. a. immaculata. Much smaller; lateral margin of the thorax depressed and slightly reflected; feet immaculate. Length half an inch. Most probably a distinct species, but I have seen but one specimen. As the large North American species does not appear to have been noticed, I will add a description of it. [Previously described as B. Boscii Serv. Enc. Meth. 10, 273: Zaitha Boscii Amyot and Serv. 430: Perthostoma auruntiacum Leidy, Journ. Acad. Nat. Sc. Phil. 2d ser. 1, 62. It really belongs to the latter genus, and not to Zaitha.-UHLER.] 2. B. GRISEA.-Oblong-oval; head before the eyes very short, not attenuated; beneath with three blackish vittae. Inhabits United States. Body oblong-suboval, slightly wider behind the middle, grayish-brown varied with fuscous or blackish, particularly on each side of the disks of the thorax and scutel: head between the eyes hardly tapering from the base to the tip: from the anterior canthus of the eyes to the tip, shorter than broad, not narrowed: [810] thorax, lateral edge rectilinear: pectus and postpectus yellow, with three broad black vittze, which become more dilated, brown and less obvious on the abdomen: feet obsoletely subannulate. Length two inches and one-fifth; greatest breadth less than nine-tenths of an inch. Occurs in various parts of the Union. I received a specimen /many years since from Dr. F. V. Melsheimer labelled Nepa grisea, Which name I retain. It differs from the preceding in magnitude, in the form of the anterior part of the head, &c. It is much like the B. grandis Linn., but is hardly half as large, and if Stoll's figure of that insect has any pretensions to accuracy, it is in other respects quite distinct. In that figure the greatest breadth is at the base of the elytra, &c. It inhabits from Canada to Florida. [Subsequently described as B. annulipes H. Schaffer, 8, tab 258, fig. 803 and 804: also as B. americanurm Leidy, Journ 366 HETEROPTEROUS HEMIPTERA. Acad. Nat. Sci. Phil. 2d ser. 1, 58. It is found from Puget Sound to Mexico, and from Maine to Florida, and thence to Brazil. Dr. Leidy expresses the belief that it is ouly a variety of B. grandis, in which opinion I entirely coincide. Stoll's figure represents B. indicum, and should not have been cited for the present species.-UHLER.] 3. B. DILATATA.-Dark grayish-brown, much dilated, ovate somewhat depressed: head obsoletely varied with dull-yellowish: thorax with the lateral margin very distinct; anterior edge obviously elevated; impressed line of the posterior submargin well defined, not abbreviated; feet somewhat annulated; venter tinged with rufous. Inhabits Mexico. Length one inch and one-tenth. ResemblesfJuminea nob., but is much larger and proportionally much more dilated. It was found between Vera Cruz and Jalapa by Wm. Bennett and presented to me by Mr. Maclure. [This is the Paysan americain Stoll, Punaises, 11, pl. 1, fig. 1; Amyot and Serville have given it the name of Stollei. It belongs to Zaitha, and was described in Stanbury's Expedition to Great Salt Lake as Z. bifoveata Hald. 370, pl. 10, fig. 1. It is also figured by H. Schaffer (9, 292) as Z. Stollei.-UHLER.] CORIXIA Geoff. Latr. 1. C. CALVA.-Thorax eight or nine lined: lines of the hemnelytra subequal. Inhabits United States. Body above glabrous, polished, pale yellowish, with transverse. black lines: head immaculate, the posterior angles distinct: thorax with eight or nine black transverse lines: hemelytra with numerous, undulated or angulated black transverse lines more or less bifid and inosculated; those of the anterior inner portion not larger than the others; lateral grooves and all beneath yellowish white. Length less than one-fifth of an inch. [811] Quite distinct from the interrupta and alternata nob., which are both minutely rugulous. 2. C. ABDOMINALIS.-Abdomen sanguineous at base. Inhabits Mexico. IIETEROPTEROUS HEMIPTERA. 367 Body blackish, with slender, yellowish transverse lines: head greenish-yellow, with a broad dusky line on each side of the middle, not extending to the orbit and hardly reaching the vertex, but dilated over the mouth: thorax with twelve to sixteen lineations: hemelytra minutely wrinkled longitudinally; transverse lineations not larger on the inner margin; lateral groove pale fulvous, particularly towards the base where it is hooked, and on the middle it has an oblique black spot: tergum at base sanguineous: pectus and postpectus black; feet yellowish; anterior pair black at tip: intermediate pair black on the tibiae and the tip of the thighs; posterior pair, tibiae and tip of the tarsi black: venter at base sanguineous. Length two-fifths of an inch. This was found in Mexico by Wm. Bennett, and sent me by Mr. Maclure. In point of size it resembles interrupta nob., which, however, is but obsoletely wrinkled at the base of the hemelytra: its transverse lineations are much more undulated, and the abodomen is pale yellowish beneath; the feet also are immaculate. 3. C. MERCENARIA.-With the line subequal and an immaculate space at base. Inhabits Mexico. Body smooth, pale yellowish; head immaculate, convex before, and with an obsolete carina and a few punctures: thorax with about eight or nine transverse black lines: hemelytra with numerous, equally slender, transverse somewhat confused, black lines: a large immaculate space at base; channel of the exterior margin interrupted, immaculate, excepting a dusky dot at tip and a less obvious one beyond the middle; tip rounded: venter blackish, lateral margin and posterior margins of the segments whitish. Length one-fifth of an inch. On comparison with the alternata nob., it may be distinguished by the equality of the lineations of the hemelytra, those of that [812] species being much more regular and wider on the inner anterior margin than on other parts of the hemelytra. The thorax and hemelytra also of that species are minutely rugulose. Passing through the market in the city of Mexico I obtained a 368 HETEROPTEROUS HEMIPTERA. few specimens from the quantity of at least a peck, exposed for sale by an Aztec woman. They are made use of as food. It is larger than calva nob., and further distinguished by the immaculate base of the hemelytra. NOTONECTA L. Latr. 1. N. UNDULATA.-Whitish; scutel and band blackish. Inhabits Missouri and Indiana. Body greenish-white: thorax dusky or blackish behind: scutel velvet black, a slight dull fulvous spot each side near the base and another more or less dilated, at tip: hemelytra with an undulated, fuscous band behind the middle; tip simply emarginate, not fissile: beneath blackish, varied with yellowish: feet greenish. Length two-fifths of an inch Var. a. Small spots at base of the scutel, none. This approaches the description of N. americana F., which, however, is said to be " postice nigro " corresponding with specimens in my cabinet from Mexico. The black color of the posterior portion of the thorax is only transmitted from the part of the scutel which is beneath it. Var. b. Yellowish, or greenish-white; beneath varied with blackish and yellowish: feet green: hemelytra with three lateral, longitudinal brown spots; a lateral, submarginal blackish line. Var. c. Scutel black: hemelytra blackish with a line at base and tip whitish. Inhabits Mexico. This may possibly prove to be a distinct species, but as it possessess many characters in common with the undulatus, I refer it for the present to this species as a variety. I owe it to the kindness of Mr. Ma[c]lure; it forms part of the collection taken by William Bennett. I found an individual in Missouri that appears to be the same as Var. c. [ 813 ] OF PHILADELPHIA. 369 darker than the thorax: wings with a brown fascia rather before the middle, hardly to be traced to the thinner margin, and not passing over the middle cross nervure; another band passing over the other cross nervure, and nearly parallel to the first: tip brown, as broad as the other bands, and connected to the second band by the costal margin: feet honey-yellow; thighs dusky at base: abdomen greenish, towards the tip tinged with cupreous. Length one-fifth of an inch. 4. 0. VAU.-Blackish; wings with about three bands and tip fuscous. [185] Inhabits Ohio. Body dark cinereous, with numerous fuscous points and spots: antennae, terminal joint piceous: superior orbits and band above the antennae piceous: vertex and front blackish: poisers whitish: wings hyaline, near the base a fuscous band much paler in the middle; another somewhat dislocated band passes over the two cross nervures, the inferior or dislocated portion points to a costal spot beyond the middle, and if continued to it would form the letter V; this band is also much paler in the middle; tip fuscous. Length more than one-fifth of an inch. The circumstance of the wing bands being paler in the middle, gives the costal margin the appearance of having four equal, equidistant spots. The inferior dislocated portion of the second band, is sometimes so extended as almost to join the third costal spot. When recent, the eyes are sanguineous, with a longitudinal, pale, narrow line. It occurred in plenty early in August. TRYPETA Meig. 1. T. ELECTA.-Thorax lineate with bright yellow; wings fasciated. Inhabits Indiana. Head pale yellowish: thorax honey-yellow; a line before the wings bright yellow, another over the [ 186] wings confluent behind with the bright yellow scutal, and another on the middle abbreviated before: wings hyaline, a brown V on the middle, the 1830.] 24 370 ACADEMY OF NATURAL SCIENCES posterior limb extending along the costal margin, to the tip or a little below; a brown point on the costal margin within the V; near the base a brown band parallel to the basal limb of the V: poisers pale yellow: abdomen pale yellow, ultimate segment with a black dot each side: pleura with a yellow line each side. Length three-tenths of an inch. 2. T. OBLIQUA.-Yellowish: wings with oblique bands; tergum with two series of black dots. Inhabits Indiana. Body pale brownish-yellow: wings with a definite yellowish costal margin, and three very oblique bands proceeding from the costal margin; basal band terminating on the thin margin midway between the anal and axillary nervures: middle band terminating at the tip of the anal nervure; outer band terminating at tip of the interno-medial nervure; costal margin ending a little beyond the externo-medial nervure; the bands are edged exteriorly with a black line, which is dilated into a spot at tip: thorax with two black dots behind: scutel yellow, pale: tergum with a series of black dots each side. Length one-tenth of an inch. The wing bands are parallel and equidistant, the intervals are as broad as the bands. [ 187] 3. T. CALIPTERA.-Wings black, with hyaline points, apical edge white. Inhabits Indiana. Body dull brownish, or dirty honey-yellow: hypostoma with two deep black dots: wings rounded, black, with very numerous, subequal, hyaline points, those of the thinner margin rather larger; apical margin white: poisers yellow at tip: tarsi paler than the leg. Length more than one-fifth of an inch. CHLOROPS Meig. C. PROXIMUS.-Yellow; thorax trilineate with black. Inhabits Indiana. Body yellow: antenna black: vertex with a black triangle elongated before almost to the base of the antennae: occiput with a large black spot, like a dilated continuation of the triangle of the vertex: thorax with three black vitte: scutel im[Vol. VI. OF PHILADELPHIA. 371 maculate: wings hyaline: beneath the scutel a large black spot: tergum dull yellowish; segments dusky at tips; second segment with a black spot each side at base; venter tinged with green feet tinged with honey-yellow. Length less than three-twentieths of an inch. Closely allied to C. lineatus of Europe, but differs in the color of the tergum. [188] EPHYDRA Meig. E. HrANs.-Cinereous; front dark bluish. Inhabits Mexico. Body dark cinereous: front and vertex dark bluish: antenna) black-brown; second joint as long as the third; seta thick at base, slender at tip: hypostoma hairy: thorax with a slight green reflection: scutel also with a slight green reflection: tergum the same. Length nearly one-fifth of an inch. LONCH(EA Fall. L. POLITA.-Black; tarsi white. Inhabits Indiana. Body shining black, with a very slight tint of blue hardly perceptible: antennae as long as the hypostoma; terminal joint more than three times as long as the two others together, at its base under the seta obscure honey-yellow: hypostoma with a slight gray reflection: wings hyaline; nervures pale brownish: tarsi yellowish-white, last joint dusky. Length more than three-twentieths of an inch. [From Vol. 6, 1830, pp. 23 —244.] Descriptions of new North American HEMIPTEROUS INSECTS, belong. ing to the first family of the section HOMOPTERA of Latreille. CICADA Oliv. Latr. Germ. 1. C. HIEROGLYPHICA.-Greenish; head and thorax litterate with black. Inhabits Pennsylvania and New Jersey. Body greenish: head rounded before; bifasciate with black before the eyes; from the superior band proceed four black lines 1830.] 372 ACADEMY OF NATURAL SCIENCES upon the vertex,'the exterior ones abbreviated, the others double and including the superior stemmata, whence they proceed single to the occiput: thorax with several black lines, the middle one double and angulated on the exterior side: scutel with eight or ten black lines and curves: hemelytra hyaline, with three or four brown anastomoses, and near the tip of each nervure a brown dot; costal nervure and nervures towards the base green, edged with a very slender black line: posterior tibia with the four spines in pairs, perfectly opposite; the fifth spine very near the terminal spines; beneath immaculate. Length to tip of hemelytra one inch and one-fourth. This species is rather rare. [236] 2. C. RIMOSA.-Black; posterior edge of the thorax rufous. Inhabits Missouri and Arkansaw. Body black above: head a little angulated before: hypostoma with the double middle line or lateral margin rufous; a rufous spot over the antennae; thorax obsoletely varied each side with piceous; posterior and lateral edges rufous: scutel with the elevated cruciform line, two spots before it, and two or three on each side rufous: hemelytra without any margined anastomosis; the cellules much undulated: tergum, posterior edges of the segments rufous: beneath rufous, varied with black: posterior tibiae with four equidistant spines in one longitudinal series, and two remote ones in another. Length to the tip of the hemelytra one inch and one-fourth. Mr. Nuttall presented me two specimens, which he obtained on the Missouri, and I found one on the Arkansaw. On the prominent middle of the hypostoma in a very obvious impressed line. This species is nearly as large as the C. septendecim Linn., from which however the above description will distinguish it. 3. C. VITRIPENNIS.-Hemelytra vitreous immaculate; anterior thighs, posterior spine hardly oblique. Inhabits Arkansaw. Body blackish above: head with a rufous anterior line between the eyes and posterior margin: hypostoma [237] convex, no longitudinal impressed line; greenish with a blackish disk: thorax with a large lateral rufous confluent spot, central line and [Vol. VI. OP PHILADELPHIA. 373 posterior margin: scutel with four rufous lines, the two inner ones connected anteriorly by a rufous W: hemelytra very transparent, immaculate: tergum posterior edges of the segments rufous: beneath greenish: venter, segments at base and each side black: anterior thighs with the posterior spine not larger than the anterior one, and but little oblique: posterior tibiae with four equidistant spines in one series, and two remote ones in another series. Length to the tip of the hemelytra one inch and one-fourth. Presented by Mr. Nuttall from the Arkansaw. FLATA Fabr. 1. F. PRUINOSA.-Plumbeous; hemelytra vertical, with a blackish spot or two before the middle. Inhabits the United States. Body above plumbeous or with a hoary pubescence: head not prominent before: hypostoma greenish-yellow, the lateral edges prominent and extending a little further down than the antennae, an abbreviated, elevated line above: hemelytra vertical, with from one to four spots before the middle; inner margin towards the base with elevated points: beneath yellowish-green. Length to tip of hemelytra less than one-third of an inch. [238} A common species. Beneath the pruinose covering the hemelytra are fuscous. 2. F. coNICA.-Greenish; hemelytra, nervures not radiating on the margin. Inhabits Indiana. Body greenish-yellow: head a little prominent, angulated before: vertex flat, horizontal: hypostoma simple: thorax and scutel simple: hemelytra vertical; nervures prominent, obvious; no radiating nervures on the margin; color green; edge at tip alternating with brown. Length to tip of hemelytra less than half an inch. In the verticle position of the hemelytra, the pruinosa and conica, together with the bivittata nob., resemble the relicta Fabr. 3. F. NAVA.-Cinereous varied with fuscous; nervures spotted; hypostoma with a black band. Inhabits Indiana. 1830.] 374 ACADEMY OF NATURAL SCIENCES Head small; front with three elevated lines, lateral line spotted, middle of the hypostoma white with a broad black band: thorax very short, almost lineolar, angulated: scutel large, tricarinate, with a large blackish spot occupying the greater portion: hemelytra grayish; nervures spotted with black, particularly the costal, on which is a larger one near the tip; intermediate tibiae biannulate with blackish. Length to the tip of hemelytra nearly one-fourth of an [ 339] inch. Var. a. Spots of the hemelytra obsolete: body yellowish: hypostoma bifasciate with black. Var. b. Hemelytra immaculate. In this species the tip of the hemelytra is a little dilated inwards so as to lap over when at rest, and the scutel is not longer than the thorax. 4. F. OPACA.-Blackish; beneath with a white vitta; head a little advanced. Inhabits near Lake Erie and Indiana. Body, above, brown-black: head, before the eyes, equal in length to the diameter of the eye; hypostoma with the central line and lateral edge elevated; on the middle a whitish band: vertex with an impressed longitudinal line; tip rounded: thorax with an elevated line: scutel with three elevated lines, the lateral ones a little arquated: hemelytra opake, irrorate with minute white points; dilated towards the inner tip so as to lap over the opposite one; a quadrate whitish spot beyond the costal middle, and one or two smaller ones nearer the tip: pleura with a lateral whitish vitta: feet black: venter blackish. Length to tip of hemelytra over two-fifths of an inch. This is a fine species, and was obtained by Mr. Isaiah Lukens. The hemelytra are dilated inwards near the tip, as in nava, but the scutel is more than as long again as the thorax, and the head is differently formed before. I have recently found a specimen in Indiana. [ 240 1 5. F. PALLIDA.-Pale brownish; beneath yellow; head a little advanced. Inhabits Pennsylvania and Florida. Body, above, pale brownish-yellow: head, before the eye, [Vol. VI. OF PHILADELPHIA. 375 rather longer than the longitudinal diameter of the eye: eye oval hypostoma, elevated line obsolete, excepting near the superior tip; superior half yellow, inferior half dusky; each side before the eye dusky, the bounding line passing under the eye: vertex with an impressed line: seutel as long again as the thorax, three lined, the lateral ones a little arquated: hemelytra with about eight or ten remote brown points: pectus on the superior half blackish. Length to the tip of the hemelytra less than two-fifths of an inch. Resembles opaca; the hemelytra being dilated and the head prominent as in that species. 6. F. BULLATA.-Hypostoma with an oval elevated line on the disk. Inhabits the United States. Hypostoma with an elevated line longitudinally in the middle, each side of which is another elevated, much arquated line, forming an oval, and all confluent above, with a transverse line at tip of the head: vertex with a line behind: thorax with two impressed punctures: scutel not longer than the thorax: hemelytra brown-cinereous, sub-bifasciate with black and bullate near the costal margin before the middle. [241] Length to tip of hemelytra over one-fourth of an inch. In form it resembles the cynosbatis Fabr., and the two following species. 7. F. QUINQUELINEATA.-Scutel five-lined: nervures punctured with black. Inhabits New Jersey. Body yellowish: hypostoma with the longitudinal line and lateral edges elevated, the former somewhat bifid above: scutel with five, distinct, elevated lines; hemelytra with the nervures minutely punctured with blackish; hyaline slightly clouded with ferruginous towards the tip, and with an obsolete band before the middle; a more obvious fuscous dot towards the tip of the costal. Length to tip of hemelytra three-tenths of an inch. Occurred on Pinus rigida early in August. 1830.] 376 ACADEMY OF NATURAL SCIENCES 8. F. HUMILIS.-Blackish; scutel five-lined. Inhabits Pennsylvania. Body brownish-black: hypostoma with a central elevated line and lateral edges: vertex with a whitish spot each side: thorax narrow: scutel with five elevated lines: hemelytra with brown nervures, those near the tip fuscous: feet and tip of the venter yellowish. Length to tip of hemelytra over three-twentieths of an inch. Resembles quinquelineata, but is much smaller and differently colored and marked. [242] MEMBRACIS Fabr. Germ. 1. M. TARTAREA.-Black; hemelytra hyaline at tip. Inhabits Pennsylvania. Head and thorax black, polished, immaculate; the latter simple, slightly elevated: tip acute, rather slender and greenish: hemelytra with the four apical cellules hyaline, excepting that the including nervures are margined with fuscous: feet greenish: thighs tinged with rufous: abdomen green: venter segments at their bases dusky. Length to tip of hemelytra less than one-fifth of an inch. 2. M. M EMICREMA.-Green; head and anterior thoracic disk black. Inhabits Florida. Head black, a green band between the anterior angles of the eyes: thorax little elevated, simple, green, with a large black anterior disk; tip rather slender, acute: hemelytra hyaline; nervures mostly blackish; three terminal cellules subequal, rather broader than long: beneath yellowish-green. Length to tip of hemelytra less than one-fifth of an inch. Somewhat resembles tartarea. 3. M. CALA.-Thorax simple, black; head greenish. Inhabits Pennsylvania. [243] Head greenish, more or less black at base: thorax simple, hardly elevated, black, polished, generally greenish at tip, which is not slender: hemelytra hyaline: nervures pale greenish: peetus black: feet greenish: thighs more or less black. [Vol. VI. OF PHILADELPHIA. 377 Length to tip of hemelytra less than three-twentieths of an inch. A smaller species than the tartarea and semicrema, and the thorax is not so slender at tip. I obtained many specimens on Eupatorium maculatunm, in the axillae of the leaves, early in July. 4. M. GONIPHORA.-Thorax flattened before, subulate behind Inhabits Missouri. Above greenish, minutely reticulate with yellowish rufous: thorax greatly elevated, flattened before so as to form an acute line each side, which meet at the greatest elevation, rather before the middle, from whence the curvature descends by an acute carina to the tip, which is subulate and arquated: hemelytra, three terminal cellules unequal. Length to tip of hemelytra three-tenths of an inch. Several specimens were presented to me by Mr. Nuttall, who obtained them during his voyage up the Missouri river. 5. M. FESTINA.-Thorax with a subacute line each side before, meeting behind the middle. Inhabits Florida. [244] Body yellowish-green: thorax unarmed, carinate behind; at tip attenuated, subulate and complying with the general curvature; each side before a carinate line, meeting together at the carina behind the middle, and with the carina tinged with rufous; front of the thorax not altogether flat, but a little convex: hemelytra, three terminal cellules unequal; the two costal ones equal, as broad as long; the inner one not obviously larger than the others together, somewhat longer than broad. Length to tip of hemelytra one-fifth of an inch. The lateral prominent lines of the unarmed thorax, separate this species from all those which I have described excepting goniphora, which, however, is larger, the thorax more elevated, and the lateral lines meet before the middle of the length of the back. 1830.] 378 ACADEMY OF NATURAL SC1ENCES [Continuation from vol. 6, 1831; pp. 299-314.] MEMBRACIS. [299] 6. M. VAU.-Thorax with an oblique band before the middle, and transverse one near the tip. Inhabits Pennsylvania. Thorax not greatly elevated, rounded and unarmed before, carinate acutely from before the middle to the posterior tip; tip hardly reaching the end of the nervures of the hemelytra; a whitish, very oblique band, edged with fuscous, crosses the back before the middle, and reaches the lateral edge behind the middle; near the tip a transverse band, and between the two bands a whitish spot; hemelytra, a little fuliginous at base and tip; three terminal cellules unequal, the inner one being as large as the two others together. Length to tip of hemelytra one-fourth of an inch. 7. M. INORNATA. - Immaculate thorax carinate; wings white. Inhabits Pennsylvania. Body greenish or yellowish-green: thorax acutely carinate, from near the anterior margin to the tip; not greatly elevated, rounded before, unarmed; tip not attaining the tip of the cellules of the hemelytra: hemelytra whitish; three terminal cellules [300 ] unequal, inner one larger than the two others together, terminal one almost oval transverse: oviduct dusky. Length to tip of hemelytra one-fourth of an inch. In form resembles.1 vau. 8. M. SUBULATA.-Thorax subulate behind, carinate, with two obsolete whitish vittse each side. Inhabits Maryland. Body yellowish, (green when recent); head a little inequal: eyes green, undulate with black: thorax rounded before; acutely carinate; towards the tip slender, acute; on each side two obsolete, whitish, impunctured lines; tip not reaching the three terminal cellules of the hemelytra: hemelytra, three terminal cellules rather broader than long, subequal. Length to tip of hemelytra more than one-fifth of an inch. [Vol. VI OF PHILADELPHIA. 379 The tip of the thorax is still more attenuated than that of the bubalus Fabr. 9. MI. QUADRIVITTATA.-Thorax quadrilineate with sanguineous. Inhabits Maryland. Body pale yellowish-green: head trifasciate with black: thorax gibbous, with a rounded tubercle over the origin of the hemelytra; four sanguineous vittme extending near to the middle, the lateral ones oblique; four transverse black spots before, and a dorsal impunctured line; tip acute: hemelytra [301 ] hyaline; nervures fuscous, greenish towards the base and basal costal margin: tergum, segments black at base: venter black at base: pectus sanguineous each side, disk with large black spots. Length to tip of hemelytra two-fifths of an inch. Several specimens occurred on the eastern shore of Maryland, cast up by the waves. 10. M. MERA.-Unarmed; thorax fasciate with fuscous beyond the middle; tip dull sanguineous. Inhabits Pennsylvania. Body greenish: head immaculate: thorax almost regularly arquated above, with a fuscous band, rather behind the middle; tip dull sanguineous: hemelytra fuscous at tip; nervures with narrow fuscous edges: feet tinged with rufous. Length to the tip of the hemelytra less than two-fifths of an inch. The thorax has no angulated appearance before, but is obtusely rounded before, and behind the middle, and more obtusely so above. In the 4-vittata the thorax declines rectilinearly from near its greatest elevation to the tip without the slightest concavity, whereas in the present species the thorax, beyond the band, declines somewhat abruptly, beyond which it still declines, but rectilinearly to the tip. The tip of the thorax extends as far as the nervures of the hemelytra. 11. M. MARMORATA.-Above marbled with rufous and yellow. Inhabits Pennsylvania. [ 302] Head rufous with yellow spots: thorax regularly arquated above, behind the middle the line of curvature is a little concave; tip nearly as long as the nervures of the hemelytra: 1831.] 380 ACADEMY OF NATURAL SCIENCES hemelytra tinged with rufous at base and fuliginous at tip; feet rufous. Length to the tip of the hemelytra three-tenths of an inch. In general form it resembles M. mera, but it is shorter, and the tip of the thorax is considerably shorter in proportion. 12. M. ARQUATA.-Thorax simple, quadrilineate with fuscous. Inhabits Pennsylvania. Thorax cinereous, tinged with rufous on the back, each side of which is a fuscous somewhat undulated line, confluent with the margin behind the middle; exterior to the fuscous line is a cinereous arquated line within which is an abbreviated marginal fuscous line: back not much elevated, simple; tip terminating more obtusely than usual and with a cinereous spot above: hemelytra hyaline, with a dusky base, and fuliginous spot in the middle and at tip; nervures margined with brown; terminal cellule smaller than either of the two adjoining ones and transverse: thighs blackish. Length to tip of hemelytra over one-fifth of an inch. Resembles the picta as represented by Coquebert. 13. M. BELLIGERA.-Thorax with a projecting horn; tip slender, acute. Inhabits Pennsylvania and Florida. [303] Thorax green, with small, fulvous spots; a compressed horn before, which is not in the slightest degree arquated, at its extremity rounded; back not carinated, but with an impunctured line; tip slender, and equally slender when viewed laterally as from above, acute: hemelytra hyaline, at base varied with green and yellow; terminal nervure about three times longer than wide. Length to tip of hemelytra and tip of the horn half an inch. Resembles bimaculata Fabr., but the tip of the thorax is much more attenuated and acute and the terminal cellule of the hemelytra is elongated. In adddition to the bimaculata F., sinuata F., emarginata F., we must place in this genus, his Centrotus bubalis. The Centrotus acuminatus of that author, is only the female of his Membracis bimaculata. His sinuata does not appear to me to differ specifically from the emarginata. [Vol. VI. OF PHILADELPHIA. 381 CERCOPIS Fabr. Germ. C. BICINCTA.-Sanguineous; wings fuscous, bifasciate. Inhabits Indiana. Body sanguineous: rostrum blackish at tip: antennae blackish: vertex with an obsolete dusky band: thorax blackish, edged with sanguineous, except on the posterior part; a rufous band on the middle: scutel blackish, sanguineous each side: hemelytra [304] blackish, with two yellow or rufous, narrow bands: humerus sanguineous: pleura with one or two large black spots: abdomen, disks of the segments blackish: thighs beneath, and tarsi blackish. Length to the tip of the hemelytra two-fifths of an inch. Resembles the rubra Linn., and sororia Germ., but is sufficiently distinct. It frequently occurs in this State, [Indiana] sometimes in Pennsylvania, and Mr. Nuttall gave me a specimen which he obtained in Arkansaw. APHROPHORA Germ. 1. A. BILINEATA. —Grayish; hemelytra with a black abbreviated line from the humerus. Inhabits Missouri. Body above gray: head with an obsolete, double, brownish line: ocelli not very distinct: eyes trilineate with dusky: antenne. with a fuscous spot at tip: thorax with a hardly perceptible, double, brownish line, and another behind the eye: hemelytra with a longitudinal blackish line from the humerus, parallel with the costal margin, abbreviated at the middle; costal margin whitish: tergum black; lateral edge and tip yellowish: beneath yellowish. Length to tip of hemelytra less than one-fourth of an inch. 2. A. QUADRINOTATA.-Pale; hemelytra dusky, with two large hyaline costal spots. Inhabits the United States. [305] Body pale yellowish: head, on the anterior margin beneath, with black spots: rostrum black at tip: stemmata sanguineous: vertex with a longitudinal, slightly elevated line: thorax rather darker behind, and with a slightly elevated longitudinal line: 1831.] 382 ACADEMY OF NATURAL SCIENCES hemelytra pale brownish, with two large white or hyaline costal spots, which are margined with fuscous. Length to the tip of the hemelytra nearly three-tenths of an inch. To this genus, as formed by Germar, belong the following species which I formerly published, viz.: (ercopisparallela, Cercopis quadrangularis, Cercopis obtusa. JASSUS Fabr. Germ. J. INIMICUs. -Head with two dots, thorax with a transverse series of dots. Inhabits Virginia. Body pale, with a yellowish or greenish tinge: head with a black dot each side at tip; hypostoma with transverse fuscous interrupted lines: thorax with a transverse, arquated series of about four fuscous points on the anterior margin; posterior disk a little dusky: scutel with a black abbreviated line each side at base, an obsolete, double, diverging line in the middle: hemelytra hyaline, with brown nervures: tergum blackish, margin yellow. [306] Length to tip of hemelytra over three-twentieths of an inch. Var. a. Hemelytra with the cellules edged with fuscus; nervures whitish. When in the larva state this species is said to depredate on the roots of wheat. Several specimens were sent me by Professor Green, in the year 1822, who received them from a farmer of Virginia. 2. J. ACUTUS.-Head elongated, acute; thorax five-lined. Inhabits Indiana. Body above with minute, brownish reticulations: head much elongated, as long as the thorax and half the scutel; with about three gray lines consisting of the absence of reticulations: thorax about five-lined: hemelytra with larger reticulations, enclosing whitish spots which are somewhat larger on the costal margin: beneath blue black; disk of the head yellow; feet yellowish, spotted with black. Length to tip of hemelytra nearly one-fifth of an inch. 3. J. IMMISTUS.-Head yellow, with green bands before and a cupreous one above; wings reticulated. [Vol. VI. OF PHILADELPHIA. 383 Inhabits Indiana and Missouri. Head pale yellow; a brown subcupreous band between the anterior angles of the eyes, a slender green one near the anterior edge complying with its curvature, and at least two green slender bands beneath the anterior edge: antennae with a somewhat elongated seta: thorax bifasciate with subcupreous, first band partly concealed by the head, the other interrupted in its middle; scutel subcupreous on its basal half; hemelytra bluish-white, fuscous at base and tip, and reticulate with fuscous in the middle; the fuscous portion have a subcupreous, brilliant reflection; wings whitish, with brown nervures: pectus immaculate; feet pale yellowish; posterior thighs greenish, their tibiae with a series of green points and tip, their tarsi green in the middle. Length to tip of hemelytra more than one-fifth of an inch. 4. J. SEMINUDUS.-Hemelytra white with a large brown band. Inhabits Indiana. Body yellowish-white: head before rounded, obtuse, nearly parallel to the posterior edge: thorax and scutel obsoletely spotted with greenish: hemelytra whitish, somewhat opalescent; a broad common brown band on the middle, partially edged with fuscous and a brownish spot near the costal tip: tergum blackish each side on the middle: beneath immaculate. Length to tip of hemelytra over one-fifth of an inch. 5. J. sANrTus. — Hemelytra white, with a common brown cruciate mark. Inhabits Indiana. Body yellowish-white: head subacute, with two [308] minute fuscous points near the tip and an undulated line on the anterior edge: thorax dusky across the middle: hemelytra white, somewhat opalescent, with a common large cruciform mark on the middle, composed of brownish spots with blackish edges and including a whitish common spot; tip with large spots: venter with a dusky band and small lateral spots: feet immaculate. Length to tip of hemelytra nearly one-fifth of an inch. 6. J. VERTICIS.-Vertex hardly as long as half the greatest diameter of the eye. Inhabits Missouri. Body beneath yellow, immaculate: vertex remarkably short, 1831.] 384 ACADEMY OF NATURAL SCIENCES wide, irrorate with fuscous, not so long as half the greatest diameter of the eye: eyes small, remote: thorax yellowish, irrorate with fuscous; scutel yellowish, irrorate; two obsolete darker spots at base: hemelytra fuscous; a hyaline spot on the middle of the inner margin, and a hyaline band, sometimes interrupted, near the tip; costal margin whitish: tergum blackish with a ellow margin: feet white. Length to tip of hemelytra nearly one-fifth of an inch. 7. J. IRRORATUS.-Varied with whitish and brown; hemelytra reticulate. Inhabits the United States. Body whitish-gray, irrorate with small, irregular [309] numerous, fuscous spots: head with the anterior and posterior edges parallel: scutel more dusky on the lateral margin: hemelytra subopalescent, reticulate with fuscous, with four or five darker spots on the costal margin towards the tip; pectus and pleura not irrorate, but with a few blackish spots: thighs fasciate and tibia spotted with fuscous or blued-black: tergum blackish; margin yellow with an abbreviated fuscous line on each segment. Length to tip of hemelytra three-tenths of an inch. A common species; I have obtained it in Pennsylvania, Indiana, Florida, and Missouri. 8. J. CLITELLARIA.-lHemelytra blackish, with a common yellow spot, and costal margin. Inhabits Indiana. Body pale yellow: head with two black dots before, and a broad black band at base, occupying half the clypeus: thorax, posterior half black: scutel black: hemelytra black, with a very large subovate, common yellow spot: a broad vitta on the costal margin, gradually attenuated to the humerus and truncate at the opposite extremity; tip and terminal third of the inner margin brown: beneath pale yellow. Length to the tip of the hemelytra one-fifth of an inch. 9. J. NOVELLUS.-Vertex with a series of five black dots. Inhabits Indiana. [310] Body blue-black: head yellowish: hypostoma varied with fuscous lines: vertex with five black dots in an arquated series: thorax with a yellowish disk, in which are a longitudinal line and [Vol. VI. OF PHILADELPHIA. 385 two dots: scutel edged with yellow: hemelytra dusky, with pale nervures: an opalescent spot on the costal middle: feet yellowish. Length to tip of hemelytra less than three-twentieths of an inch. 10. J. OLITORIUS.- Head yellow; hypostoma bilineate with red. Inhabits Pennsylvania. Head yellow; a longitudinal red vitta each side on the hypostoma; thorax and scutel black-blue, edged with dull rufous; hemelytra brownish bronze; nervures fuscous: pectus and venter black; sutures dull yellowish: anterior and intermediate feet pale yellow: posterior thighs blued-black with yellowish tip, their tibia blued-black with yellow spines, their tarsi dull yellowish. Length more than one-fourth of an inch. J. SUBBIFASCIATUS.-Brown; hemelytra bifasciate with whitish. Inhabits Pennsylvania. Body clear light brown: head yellow, with a capillary black line on the vertex, and two rufous, subarquated lines on the hypostoma: scutel with about four obsolete, dusky small spots: hemelytra with a whitish band almost interrupted, behind the middle, and an abbreviated band before the middle, [311] on the second short nervure of the thinner margin and extending to the third nervure; nervures fuscous: pectus with large black spots. Length 9 to the tip of the hemelytra three-tenths of an inch. TETTIGONIA Latr. Germ. 1. T. OCCATORIA.-Yellowish-green, lineate with fuscous. Inhabits Indiana. Body above yellowish-green: head with a black point at tip; above five-lined: exterior lines submarginal, passing over the stemmata, second pair of lines confluent before and not reaching the tip; central line very small, abbreviated, basal: thorax also five-lined, corresponding with the lines of the head, and the three inner ones passing upon the scutel: hemelytra lineated with yellowish-green and fuscous, the two inner fuscous lines corresponding with the two exterior lines of the thorax; tip blackish with a yellowish band: wings blackish. 1831.] 22 386 ACADEMY OF NATURAL SCIENCES Length to tip of hemelytra one-fourth of an inch. 2. T. VERSUTA.-Yellow; head, scutel and hemelytra lineate with dark green. Inhabits the United States. Body yellow: head with a blackish-green anterior edge; above tinged with fulvous on the disk, with a submarginal, dark green line each side, which is interrupted and diffracted behind the middle, and does not reach the tip of the head, near which it joins a double, obsolete line, which passes over the [312] middle of the head: thorax with a large green spot: scutel with several dark green lines: hemelytra with three oblique green vittas and blackish dots on the apical margin: tergum dusky, or blackish with lateral yellow triangles. Length to the tip of the hemelytra less than one-fourth of an inch. 3. T. QUADRIVITTATA.-Hemelytra sanguineous with oblique green vittee and margin. Inhabits the United States. Body yellow: head with a blackish anterior and lateral edge passing through the eyes: thorax rufous, anterior and posterior margins green, the latter connected with a yellowish lateral spot, and a dorsal green vitta which is abbreviated before: scutel rufous: hemelytra sanguineous, with a green margin and two oblique green vittae, of which the inner one proceeds from the humerus to the inner margin, and the other is abbreviated and partially twice interrupted: tergum sanguineous. Length to the tip of the hemelytra more than three-tenths of an inch. Very closely allied to A. bifasciata Linn., of Europe, but that species is much more hairy; in the 4-notata all the nervures of the hemelytra are distinctly visible. 4. T. MOLLIPES.-Yellow; hemelytra green with a pale margin. Inhabits the United States. Body yellow: head elongated, acute before; beneath the eyes a brown line, which is continued on [313] the pectus: thorax green, a broad anterior and lateral yellow margin: scutel greenish-yellow: hemelytr. green; neur: e pEler; exterior and ai[Vol. VI. OF PHILADELPHIA. 387 cal margins pale yellow or whitish; a pale yellowish, capillary, oblique line from the humerus to the inner margin: tergum blackpurple, lateral edge and tip yellow. Length to the tip of the hemelytra over three-tenths of an inch. A common species. 5. T. BIFIDA.-Green, head and thorax banded, and hemelytra lineated with blackish. Inhabits Indiana. Vertex white with a cental, transverse, dark green, abbreyiated line; prominent tip of the head with a dark green spot; labrum yellowish, at tip dusky: thorax, anterior margin and posterior submargin, with a transverse dark green transverse line, anterior submargin and posterior margin with a white trans. verse line: scutel on the edge and a central, transverse, abbreviated line dark green: hemelytra with six rather oblique dark green lines, the exterior one bifid at tip: beneath blackish: feet pale. Leagth to the tip of the hemelytra about one-fifth of an inch, 6. T. HIEROGLYPHICA.-Dull rufous; head and scutel lineated; hemelytra spotted. Inhabits Arkansa. Body obscurely dull rufous: head with a black dot at tip, above literate with black: thorax with a [314] dusky posterior disk: scutel with black more or less curved lines: hemelytr& obsoletely spotted, nervures being pale: beneath pale yellowish: pectus with large black spots: feet immaculate: tergum blueblack, edge yellow. Length to tip of hemelytra one-fifth of an inch. Agreeably to the arrangement of Germar, the following of my published species, may be placed in this genus, viz: Cercopis obliqua, C. basilaris, and C. comes; as well as the following species of Fabricius, viz: (ada undata, C. irrorata, and Cercopis costalis. The species which I publiahied waoe the name of Cwcada mixta, has the same relation to this genus as the C c fa of Panzer. ml3,.] 388 ACADEMY OF NATURAL SCIENCES [From Vol. 8, 1839, pp. 9-46.] Descriptions of New North American NEUROPTEROUS INSECTS, and Observations on some already described. Read July 12th, 1836. AESHNA Fabr. t Eyes in contact above. 1. iE. MULTICINCTA.-Reddish-brown; thorax with green lines and spots; abdomen with green bands and lateral vitta. Inhabits Indiana. o Body reddish-brown; eyes connate, dull greenish above, with a semiocellate blackish mark, and on the posterior margin pale bluish, including a black line; inferior portion tinged with gray, and with several moveable internal spots; frontal vesicle dull whitish, above reddish-brown, dull yellowish in the middle, with a quadrate blackish spot; [10] thorax with two anterior green lines, and on the pleura beneath each wing, also a green oblique line, between the bases of the wings are green spots; wings immaculate, tinged with ferruginous, carpal spot fuscous; accessory membrane opaque white; abdomen with a lateral, angulated and almost interrupted green vitta; segments with a double green, sutural, narrow band, and in the middle of each, another narrow band, excepting the three ultimate ones, on which are but single sutural bands; caudal foliaceous processes blackish, somewhat dilated in the middle, gradually narrowed to each extremity, and rounded at tip; feet black; thighs rufous at base. Length three and three-fifths inches to tip of caudal appendices. The abdomen tapers gradually from the base to the tip. The description is taken from a recent specimen. [This species, which is common throughout the United States, has usually been referred to the heros of Fabricius. —ED.] [This is J. heros Fabr. Ent. Syst. Suppl. 285.-UHLER.] 2E. JUNIUS.-Green; abdomen brown, laterally bluish; wings immaculate. L. Junius Drury, Vol. 1, pl. 47, fig. 5. [Vol. VIII. OF PHILADELPHIA. 389 t Body bright green; eyes brown, tinged behind and beneath with yellowish; labium yellowish; antennae and intervening line black; frontal vesicle above with an arcuated blue line and central black dot: wings immaculate; carpal spot pale brown; posterior wings, next to the body and behind the nervures, with a small opaque white spot, terminated by a black, broad line; feet rufous; tibiae and tarsi [11] black; abdomen with a dorsal and lateral interrupted raised line; brown above, with a lateral, interrupted blue vitta, originating with the second segment; first and second segments bright green; venter tinged with brown, with a blackish vitta; foliaceous appendices carinate, at the exterior tip prominent mucronate. Length three inches. 9 Wings with a trace of ferruginous on the anterior portion; foliaceous appendages rather smaller, lanceolate, acute. Drury in his figure represents the abdomen as entirely green; but this is a mistake; his dried specimen had this part brown, and supposing it to have been green when living, he figured it so. Can this be vesiculosa L.? It is allied to the formosa Vanderlinden, which, however, appears to have a black, angulated, dorsal vitta on the abdomen, and the eyes are described to be green. [Belongs to the genus Anax Leach.-UHLER.] 3. lE. CONSTRICTA.-Abdomen contracted near the base, elongated, with interrupted bands; anal processes undulated and prominently mucronate. Inhabits Indiana. % Eyes in contact above; occiput black, with a yellow spot between the eyes; front greenish-yellow; between and behind the antennae, with the exception of a yellow transverse spot black, connected anteriorly with a transverse black line; stethidium brownish, varied with greenish vitte before, and oblique ones on the pleura, and spots on base of the wings; wings hyaline, a little lactaceous; stigma moderate, black; anal membrane [12] black, white at base; abdomen elongated, fuscous, with somewhat glaucous interrupted bands and spots; two basal seg. ments thick, the second with a narrow interrupted band: third remarkably contracted in the middle, with two small transverse 1839.] 390 ACADEMY OF NATURAL SCIENCES spots, and on the posterior margin an interrupted band; remaining segments having the same markings as the third, together with a large double lateral longitudinal spot, excepting the ultimate and the caudal segments, which have only the posterior interrupted band; caudal segments two-thirds the length of the preceding one; anal processes as long as the two preceding segments, undulated, foliaceous, with a longitudinal line in the middle, dilated on the inner edge beyond the middle, near the inner tip, hairy, and with a tooth, and rounded prominence; at tip rounded, with a prominent cylindric spine; inferior process half the length of the superior ones; feet piceous, or blackish; anterior thighs with a glaucous line behind. Length less than three inches. The third abdominal segment is remarkably contracted. The posterior interrupted bands might be called rounded or qu adrate spots, and are largest and more glaucous on the posterior segments. It resembles Libellula tenebrosa? 4. E. CLEPSYDRA.-Abdomen contracted near the base, with interrupted bands; anal processes foliaceous. Inhabits Massachusetts. This is so much like constricta S., that it may possibly prove to be a variety. Nevertheless, the anal [13] appendices are very different. These are foliaceous, oblong-oval, gradually nar rowed at base, with a small angle at tip; upper side with a carinated line; caudal segment of the abdomen with an elevated compressed tooth near its base above. Length less than three inches. The only individual I have seen was sent me by Dr. Harris. 5. AE. VINOSA.-Abdomen contracted near the base; wings very slightly tinged with ferruginous; stigma yellowish; pleura with two bright yellow orbicular spots. Inhabits Massachusetts. Harris. Length over two inches and a half. Resembles clepsydra S., very closely, but it may be distinguished by the color of the wings and stigma, the bright orbicular spots of the pleura, the yellow antennae, and the absence of black markings in the summit of the frontal vesicle. The anal [Vol. VII. OF PHILADELPHIA. 391 processes resemble those of clepsydra, and the neck of the wings is fuscous as injanata S. [This is XE. 4-guttata Burm. Handb. 2, 837.-UHLER.] 6. AE. JANATA.-Wings immaculate; abdomen contracted near the base, banded; anal processes at tip unarmed, pediform. Inhabits Massachusetts. S Eyes in contact above; occiput dusky; posterior canthus of the eyes dull yellowish; space between the eyes transversely triangular, depressed, dusky, excepting the posterior edge,which is yellowish, and is a raised line; antennae and vertex black, excepting a transverse, obscure, arcuated line; front yellow; [14] summit with a black line and anterior margin; thorax brown, two dull glaucous vittse before; pleura, two oblique yellow vittme, margined with black; wings hyaline, immaculate; basal neck fuscous; anal membrane white; stigma dull yellowish; abdomen dusky; third segment deeply contracted; segments with a yellowish band at base, interrupted one at tip, and spot in the middle; caudal segment but little shorter than the preceding one, and carinate at base, beneath with the lateral tubercles of the second segment compressed and denticulated; caudal processes a little undulated, being slightly dilated beneath near the base, and more obviously so towards the tip, so as to be pediform; tip unarmed; inferior process hardly half as long as the superior ones; feet yellowish, blackish beneath. Length over two inches. Sent to me by Dr. Harris. I have not seen the female. It resembles constricta S., but is smaller, the caudal segment is subequal to the preceding segment, and the superior caudal processes are suddenly enlarged near the tip, and are unarmed. 7. }E. FURCILLATA.-Inferior anal process widely forked at tip. Inhabits Massachusetts. S Body brownish; pleura with three oblique, yellow lines; between the wings varied with whitish; wings immaculate, anal membrane white; stigma fuscous; abdomen, third segment very much contracted; segments with a double spot at tip, a [15] smaller double one in the middle, and a triangular spot at base; anal processes narrow, foliaceous, on their-basal half subcylindri1839.] 392 ACADEMY OF NATURAL SCIENCES cal, with two small distant teeth on the inner inferior side; beyond the middle rectilinear, flattened, sides parallel, rounded at tip; inferior process about half as long as the superior pair, wide, widely emarginate down to its middle. Length over two inches. This may readily be distinguished by the widely forked form of the inferior caudal process. I have seen but the individual sent me for examination by Dr. Harris. [Subsequently described as Gynacantha quadrifida Rambur, Neuropt. 209. -UHLER. ] 8. i2. OBLIQUA.-Thorax brown, with two oblique yellow vittae before; front yellow, with a black band. Inhabits Indiana. Eyes angularly contiguous above; front greenish-yellow, with a black band; antennae black; space between the antennae and region of the stemmata black; occiput dull yellowish; occipital interval tuberculiform, greenish-yellow; posterior upper canthus of the eyes black, passing in a hairy ridge to the top of the occipital tubercle; stethidium fuscous; two yellow oblique vittae before; middle between the wings with a yellowish spot; pleura with two distant, parallel, oblique, yellow vittse, margined with black; wings hyaline, immaculate; stigma black; anal membrane white; abdomen blackish, a dorsal series of yellowish spear-shaped marks, those of the two posterior segments dilated, the last one quadrate: anal appendices not longer than the [16] anal segment, mucronate; inferior process as broad at its tip as the tip of the abdomen, and widely more or less emarginated: beneath, first and second abdominal segments pale, the lateral tubercle rounded, unarmed; feet black. Length about two and a half inches. Var. a. Dorsal series of the abdomen none; a lateral series of dull yellowish, oblong, subtriangular spots. This variety was sent to me by Dr. Harris. I have not seen the female. [Subsequently described as Cordulegasterfasciatus Rambur, Neuropt. 178. —UHLER.] t t Eyes distant above. 9. IE. FRATERNA.-Wings immaculate; thorax yellowish, with [Vol. VIII. OF PHILADELPHIA. 393 brown lines; abdomen brown, with a yellow vitta; dilated at tip. Inhabits the United States. Length less than two inches. % Head greenish-yellow; eyes distant above; labrum with an indented point in the middle; between the eyes a black band, including the stemmata and antennae; thorax greenish-yellow, with three double fuscous vittee; between the wings a greenish-yellow vittse; wings immaculate; costal nervure greenish; carpus fuscous small, the transverse line of its base passing obliquely across the second series of cellules; accessory membrane very small; abdomen dark fuscous, cylindrical, thicker at base, and much dilated at tip; a dorsal yellowish line, interrupted by the incisures, wider on the basal segment, and exhibiting a spot only on two of the dilated segments; anal appendices four, short, subulate: sides of the abdomen with a dilated [17] yellowish vitta on the basal segment, on which is also a lateral tubercle; remaining segments with a spot on the base of each, those on the dilated segments are much larger, that on the terminal segment occupying all the side, yellow and conspicuous; pleura green-yellow, with two oblique, fuscous lines; feet fuscous: tibia with a dull green line; the dilated tip of the abdomen is very concave beneath. 9 Tubercles of the basal segment of the abdomen obsolete; abdomen at tip somewhat less dilated; anal appendices two. Length two inches. Common in June, on the banks of the Wabash. It resembles forcipata Fabr., closely, but the feet of that species are yellowish above; the dorsal line of the abdomen is capitate on each segment, and on the basal segment trilobate. It belongs to the genus Gomphus Leach. 10. AE. STIGMATA. —9 Body yellow; stemmata rather large; thorax with a double brown arcuated vitta before, each side of which is an abbreviated, oblique, brown line, and another brown line on the suture of the pleura; wings with a very slight tinge of yellowish, at their origin ferruginous; costal edge whitish, with two series of minute black points; stigma rather large, blackish; tergum, each segment excepting the basal and ultimate 1839.] 394 ACADEMY OF NATURAL SCIENCES ones, with a longitudinal spot each side, contracted in the middie and not reaching the base; terminal process conic, acute, not at all compressed; thighs with a brown line above towards the tip; tibia and [18] tarsi black-piceous; the former yellowish on the inner side; abdomen not remarkably clavated. Length two inches. This species resembles the fraterna, but it is much more yellowish, the stigma of the wings is about double the size, the markings differ. It also resembles unguiculata Vanderlinden, but the stigma is much larger. [Belongs to Gomphus Leach.-UHLER.] LIBELLULA. 1. L. HYMEN.EA. —Wings hyaline; posterior wings with the anal margin brown, with white nervures; anal membrane white, opaque. Inhabits Indiana. 9 Vesicular front fulvous; stethidium dull yellowish-green; wings hyaline; stigmata small; posterior pair wider at base, the anal margin brown, particularly towards the anal angle, which, however, this color does not reach, neither does it attain to the origin of the wing, the nervures of this brown margin are yellowish-white; anal membrane opaque, pure white; scutel tricarinate; abdomen with a carinate line above, and on each side; second, third, fourth, and fifth segments with two transverse, elevated lines towards their middles; anal processes cylindrical, mucronate; feet blackish; anterior pairs of thighs greenish-white exteriorly; anterior pairs of tibiae with a whitish line. Length nearly two inches. Readily distinguishable by the whitish nervures in the brown anal margin of the posterior wings, and the snow-white anal membrane. It seems to be allied to L. carolina. [19] 2. L. CAROLINA Linn.-Basal fifth of the posterior wings fuscous. Length two inches.'Drury, Ins. Vol. 1, pl. 48, fig. 1. Ency. Meth. p. 565. 3. L. TRANSVERSA.-Thorax with a white band before the wings, and another between the wings. Inhabits Massachusetts. [Vol. VIII. OF PHILADELPHIA. 395 S Body brownish; eyes contiguous above in a small part of their curvature; thorax with a yellowish-white band at the anterior base of the anterior wings, and a white band between the two pairs of wings, descending obliquely on the pleura, where it is yellow; wings hyaline; basal costal cellula brown; stigma slender, yellowish, not very obvious; anal membrane white; abdomen slender, wider near the tip; segments paler on the basal half; lateral carina none; anal processes lanceolate, slightly arcuated, exterior edge towards the tip minutely denticulate; inferior process nearly as long as superior the ones; tarsi blackish. Length two inches. Dr. Harris sent me a male specimen, I have not seen the female. [Subsequently described as Epophthalmia cinnamomea Burm. Handb. 2, 2, 845: and Didymops Servillei Ramb., Neuropt. 142.-UHLE..] 4. L. TENEBROSA.-Wings immaculate; body greenish-black, with yellow lateral marks on the trunk. Inhabits Indiana. S Eyes bright emerald green, in contact above; front brownish towards the mouth, near the antenna bright green, above the antennae brownish; mouth beneath yellowish: vertex brownish; thorax dark [20] greenish, tinged towards the head and on the sides with vinaceous; an oblique yellowish line under each wing, and a yellowish spot each side behind; wings hyaline; stigma blackish; anal margin with a thick fuliginous nervure, tinged on its side with ferruginous; anal membrane blackish, whitish at base; abdomen greenish-black, immaculate, very slender behind the base, thickest at base, and fusiform beyond the middle; anal appendices arcuated, superior pair with a tooth on the superior middle, at tip abruptly incurved and truncate; feet immaculate. Length over two inches. [Belongs to Cordulia.-UHLER.] 5. L. LYDIA.-Wings with a broad, brown band; and at base an abbreviated line. L. Lydia Drury, Ins. Vol. 1, pi. 47, fig. 4, Oliv. Ency. Meth. p. 570. 1839.] 396 ACADEMY OF NATURAL SCIENCES This species agrees with the short description in Turton's Linn., of the trimaculata Degeer, and I should certainly consider it the same species, if Olivier had not decided the trimaculata to be the same as the bifasciata L. [This is L. trimaculata Degeer, pl. 26, fig. 3.-UHLER.] 6. L. BIFASCIATA Fabr.-Wings with brown semifascia, tip and basal line. L. puchella Drury, Vol. 1, pl. 48, fig. 5. L. bifasciata Fabr. 9 Oliv. Enc. Meth. p. 561. L. versicolor Fabr. % L. trimaculata Deg. Ins. Vol. 3, pl. 26, fig. 2. 9 Destitute of the white wing-spots; abdomen brownish-livid, with a lateral vitta, which is gray, and becomes gradually yellow to the tip; beneath [21] with a yellow lateral vitta, being a continuation of the posterior line of the pleura, and becoming obsolete behind. It is on the authority of Olivier, that I quote Degeer's trimaculata for this species, as I do not possess the work of the latter author. [This is S. pulchella Drury. —ULER.] 7. L. TERNARIA.-Wings with a fuscous line or spot at base; a spot or band in the middle and another near the tip. Inhabits Massachusetts. % Head, a black line between the antennae eyes above in contact by a curved line; posterior lateral canthus of the eyes with two yellow spots; pleura with two oblique lines; wings with a pale ferruginous vitta, extending from the base along the anterior submargin to the middle, thence along the margin to the tip, interrupted by the stigma, which is black; on the middle of the costal margin a fuscous spot, and from the stigma a fuscous band, which does not reach the tip; at base of the posterior wings, behind the vitta, is a rather large and conspicuous, irregular, fuscous spot, reticulated with whitish nervures; anal membrane white; margined cellules ten or eleven between the middle and stigma; abdomen greenish-yellow at base, and black at tip, with a yellow lateral vitta; anal processes fusiform, black, subacute; inferior process hardly one-third as long as the others. [Vol. VIII. OF PHILADELPHIA. 397 9 The spot of the middle of the wing is extended into a semifascia, and the subterminal band is more distinct; at the base of the posterior wings is a black, securiform line, one-fourth the length of the [ 22 ] wing, behind which is a large, pale ferruginous spot, reticulated with whitish nervures. Length one inch and seven-tenths. At first sight resembles L. bIfasciata Fabr., but is quite different; the ultimate wing band is not terminal, the anal processes also are dissimilar. I have not seen any other specimens than the sexes sent me by Dr. Harris for examination. In some of its characters it resembles the L. quadrimaculata Linn., of Europe, but that has not the terminal wing bands. [Subsequently described as L. semifasciata Burm. Handb. 2, 862: and L. maculata Rambur, Neuropt. 55.-UHLER.] 8. L. LEDA.-Wings at tip, point on the costal margin, and line at base, brown. Inhabits the United States. L. Lydia, Drury, Ins. Vol. 2, pl. 47, fig. 1, and Oliv. Ency. Meth. p. 570, No. 8. Thorax brown, with a pale vitta; pleura greenish; wings with a blackish point on the middle of the costal margin, and oblong blackish carpus; terminal half of the anterior margins and tip fuscous; a slender black line, at base, equal in length to the breadth of the body; abdomen with a broad, yellowish-rufous lateral vitta; anal segment remarkably short; on each posterior orbit of the eyes are two yellow spots. Length about two inches. Var. a. Fuscous tint on the anterior margin of the wings obsolete, being only a very slight tinge of ferruginous. Drury's figure represents this species very well, but the fuscous tips of the wings are generally broader, though sometimes altogether wanting. [23] Olivier has two different species of the name of Lydia, both of which he quotes from Drury. We have therefore changed the name of the present species. [The name L. Lydia Drury, 2, pl. 47, fig. 1, must be restored to this species, as the other L. Lydia of the same author had been 1839.] 398 ACADEMY OF NATURAL SCIENCES before described by Degeer under another name. It is also L. axilena Westw. Nat. Libr. 1, pl. 29, fig. 1. —UHLER.] 9. L. QUADRUPLA.-Thorax with a whitish vitta; abdomen with a lateral, yellowish one; wings with a bicolored stigma, and basal blackish line. Inhabits Massachusetts. This insect very closelyr esembles L. Leda S. It differs, however, in being smaller, and in having the stigma larger, white, with a black tip. The male is destitute of the black wing tips, and like the female, has the exterior half of the costal margin tinged slightly with ferruginous. The anal processes are short, subcylindric, a little smaller at base, and beneath, towards the tip, minutely denticulated; at tip a small point. The sexes were sent me by Dr. Harris. Length from one inch and three-fifths to one inch and seventenths. 10. L. BASALIS.-Wings fuscous on the basal half. Inhabits the United States. % Body brownish-black; head immaculate, dark bluish; wings dark fuliginous opaque, on the basal half, beyond which is a broad, milk-white almost opaque band stigma blackish; abdomen somewhat depressed, of equal diameter nearly to the tip, dusky, with a lateral dull yellowish vitta; beneath black-brown. Length nearly two inches. [In a note attached to this description by MTr. Say, [24] is a reference to L. marginata Degeer. Wings fuscous from the base nearly to the middle. L. dimidiata Fabr. V. Enc. Meth., refers to Seba, which is quite different. Said to be from Surinam, and is much smaller, to which species the above described insect seems to bear some resemblance in the arrangement of its colors.-ED.] [Synonym is L. luctuosa Burm. Handb. 2, 861.-UHLER.] 11. L. EPONINA. —Upper wings bifasciate and with a spot near the bae; lower Tings with a band and interrupted one, and subbasal line and spot. ILhaIhilt Pe0snnylvaJia; At4 India>a. [Vol. VIII. OF PHILADELPHIA. 399 L. eponina Drury, Vol. 2, pl. 47, fig. 2. Oliv. Enc. Meth. 572, No. 10. Wings pale ferruginous; upper pair with a subbasal spot, band in the middle, and another band before the stigma, fusoo-s; inferior wings with a corresponding band towards the tip, interrupted band in the middle, undulated, longitudinal line at the base, and spot near the anal angle fuscous; anal membrane white; stigma yellowish. Length nearly one inch and a half. A beautiful and strongly marked species. 12. L. ACUTA.-Wings immaculate; body greenish-yellow; abdomen with the edges blackish. Inhabits Mexico. 9 Body greenish-yellow; eyes approaching above, but hardly touching, the nearest parts not rounded, almost acute; orbits before and above with a black edge; stethidium immaculate; addomen pale yellowish-brown, yellowish green at base; the acute longitudinal edges, above and each side, black; the [25] transverse edges and a subbasal transverse line on each segments fuscous; venter also with a black line; feet black; thighs yellowish, with the spines black, and on the anterior pairs a line beneath. Length one-inch and three-fifths. The quadrilineate abdomen, with the subacute proximate portion of the eyes distinguish this species; the abdominal lines are not dilated, but limited to the edge of the carinwe. The frontal vesicle is greenish-yellow, with a dark transverse line at the antennae. [This is L. vesiculosa Fabr., Ent. Syst. 2, 377, (var. parv.)UHLER.] 13. L. BERENICE.-Frontal vesicle blue above; wings ferruginous at base. Inhabits the United States. L. Berenice Drury, Ins., Vol. 1, pl. 48, fig. 3. Front whitish, steel-blue above; eyes obtuse above and connate; trunk brownish, with two greenish-yellow vittea before, and with three oblique broad and obvious yellow lines each side under the wings; between the wings varied with blaekishj 1889.] 400 ACADEMY OF NATURAL SCIENCES wings immaculate, or with a tinge of ferruginous at their origin, particularly of the posterior pair, and on the middle; anal membrane blackish; stigma rather large and blackish; feet black; coxe and trochanters yellow; inferior side of the anterior thighs yellow; abdomen with a dorsal black vitta, including the carina, and a lateral black vitta above the lateral carina; lateral carina black; these vittae are more and more widely confluent at the sutures, towards the tip of the abdomen, which is entirely black. [26] Length from one inch and a half to one inch and three-quarters. It may be distinguished by the blue top of the frontal vesicle, and the ferruginous mark at base of the wings. The ferruginous cloud on the middle of the wings is often altogether wanting. It also varies in having no abdominal vittse, excepting a vestige at base. The blue color sometimes extends down the front. The abdomen is also sometimes blue, and the thorax sometimes black. Drury describes the abdomen of the female as yellow, with black annulations, and that of the male blue. The inferior anal process is at least two-thirds the length of the superior ones, which are arcuated, with a tooth beneath near the tip, and at tip acute. A specimen from Dr. Harris. 14. L. RUBICUNDULA.-Abdomen sanguineous, with a lateral black vitta; wings pale ferruginous at base; anal appendices in the male with a tooth on the inferior middle. Inhabits Indiana and Massachusetts. Male.-Eyes brown, in contact above; front greenish-white; mouth pale yellowish; thorax obscure brown, immaculate; between the wings a little tinged with dull sanguineous; wings with a very small ferruginous spot at base, not over one-tenth of an inch in length, more evident on the inferior wings; stigma brown; about nine marginal cellules between the stigma and middle of the wings; tergum bright sanguineous, above carinate, immaculate, on each side a black line, which dilates [27] towards the tip of each segment; anal appendices deflected, longer than the inferior conic one, mucronate, and with a strong tooth on the inferior middle; feet blackish, venter pale. Length one inch and a half. [Vol. VIII. OF PHILADELPHIA. 401 Variety.-The ferruginous tinge of the base of the wings, extending to the middle; that of the superior pair chiefly on the anterior half of the wing; that of inferior pair more obvious, much broader, extending nearly to the thinner margin. Length one inch and two-fifths. I have found many individuals of this species. V. L..fcrruyina Enc. Meth. 565. 15. L. SEMICINCTA.-Wings tinted on the basal half with pale ferruginous; anal processes with an angle beneath near the tip. Inhabits Indiana and Massachusetts. % Antenna black, with a blackish line between them: thorax brownish; pleura yellowish; wings hyaline; stigma rather small, its marginal nervures thick and black; basal half more or less tinted with pale ferruginous, particularly on the inferior wings; about seven marginal cellules between the middle and the stigma; anal membrane white; abdomen with a dorsal and lateral edge; paler at base, and with a lateral black line; anal processes deflected, rectilinear, cylindrical, with three or four minute denticulations beneath, an angle beneath near the tip, and the tip acute; inferior process extending nearly to the tip of the superior pair. Length about one inch. [28] Very much like a small specimen of rubicuttdla S., but differs in several characters, particularly in the anal processes, and in the number of marginal cellules. 16. L. SIMPLICICOLLIS. —Wings immaculate; stethidium yel-.lowish; abdomen pale brown, a little varied with black. Inhabits Indiana and Massachusetts. S Frontal vesicle pale greenish-yellow; a black band across the antennae; occiput and posterior orbits black, with yellow spots; eyes acute above, almost meeting; stethidium green-yellow, alternating with black at the superior base of the wings; wings immaculate; stigma fuscous; anal membrane narrow, black; feet black; thighs on their posterior side brownish; abdomen brownish, with slender incisural black lines and black edges to the caringe; a black spot on each, excepting the three basal ones; beneath black; anal appendices very short, green, mucronate. Length one inch and a half. 1839.] 26 402 ACADEMY OF NATURAL SCIENCES Of the male I have but one specimen, which is of a greenishyellow color, with the sutures and abdominal spots contrasting strikingly with it. Dr. Harris sent me a specimen for examination. [Synonyms, L. maculiventris Ramb. Neuropt. 87. 9 L. coerulans Ramb. ibid. 64.-UHLER.] 17. L. OBSOLETA.-Wings with a submarginal series of six or eight brown spots. Inhabits Indiana and Massachusetts. Body dusky; wings hyaline; anterior marginal and submarginal longitudinal nervures dull yellowish: anterior wings with a submarginal series of [29] small brownish spots from the base to the middle, the latter spot largest, transverse, and reaching the anterior edge; posterior wings with six corresponding submarginal spots; a fuscous spot at the anal base of each wing anal membrane black, with its basal half white; stigma dull yellowish; abdomen with the incisures black, a dorsal and lateral carinated line; feet with black spines. Length about one inch and three-fifths. The pleura and base of the abdomen are somewhat marked with brighter yellow. The brown spots of the anal base and the submarginal spots of the wings, are sometimes obsolete, or altogether wanting anal appendices S arcuated, unarmed; inferior process a little curved upward, over three-fourths the length of the superior pair. A female specimen sent me for examination by Dr. Harris has the spots of the anal base of the wings more obvious. [Synonym L. polysticta Burm. Handb. 2, 856; belongs to Cordulia Leach.-UHLER.] 18. L. EXUSTA.-Wings with a fuscous spot at base; anal processes subequal. Inhabits Massachusetts. $ Body yellowish-brown, covered with a cinereous pubescence; a black line between the antennae; eyes in contact by a small portion of their superior curvature; thorax above pale brownish with a yellowish-green vitta from the anterior wings forward; wings hyaline, very slightly tinted with yellowish; costal cellules, between the middle of the wing and the stigma, about twelve or [Vol. VIII. OF PHILADELPHIA. 403 thirteen; stigma yellowish; a fuscous longitudinal spot on the middle [30] of the base of the superior wings as long as the width of the thorax; a large, triangular, fuscous spot at the base of the inferior wings, a little longer than that of the upper wing; anal membrane white; abdomen with a dorsal and lateral edge; anal processes somewhat linear, a little arcuated, not narrowed at base, minutely denticulated towards the tip, which is acute; inferior processes nearly as long as the others. Length one inch and two-fifths. I have not seen the female. From Dr. Harris. 19. L. CYNOSURA.-Posterior wings with a small fuscous spot at base; anal processes excurved. Inhabits Massachusetts. S Body brownish; head with a black line between the antennae; tubercle above the antennae large; eyes in contact above by a curved line; pleura pale greenish, a yellow band beneath the anterior wings; wings hyaline; anteriors immaculate; about six costal cellules between the middle and the stigma, which is dull yellowish; posterior pair with the basal, costal, and subcostal cellules fuscous, and an irregular fuscous spot between them and the anal angle; anal membrane white; abdomen with a dorsal and lateral edge; on each side, near the base, a yellow spot, beyond which is a honey-yellow vitta: anal processes longer than the caudal and ultimate segment of the abdomen together a little dilated and curved outwards towards the tip, which is rounded, abruptly narrowed beneath towards the base; inferior process two-thirds the length of the superior ones. [31] Length one inch and a half. Resembles exusta, but differs in the number of costal cellules and in the form and length of the anal processes. It was sent to me by Dr. Harris. [Belongs to Epitheca, and is perhaps E. semiaguea? Burm.UHLER.] 20. L. TENERA.-Wings with an abbreviated band and subbasal spot. Inhabits Indiana, Pennsylvania, and Massachusetts. 9 Body fuscous; frontal vesicle yellowish, brownish above; eyes contiguous above; thorax with two broad glaucous vitty 1839.] 404 ACADEMY OF NATURAL SCIENCES before; pleura with two oblique glaucous wide lines; wings hyaline, a fuscous, undulated band on the middle, not reaching the thinner margin; a fuscous spot midway between the band and base, somewhat larger on.the posterior wings; costal margin slightly tinted with ferruginous; stigma brown; anal membrane small, white; abdomen rather wide, second and third segments with a transverse, elevated line on their middle; feet yellowish, Length nine-tenths of an inch. It has some resemblance to L. varia Linn, but is a very different species. It is not uncommon, but is more limited than some other species to the immediate vicinity of ponds and sluggish waters. 21. L. TENUICINCTA.-Small; wings ferruginous. Inhabits the United States. Body fuscous, small; eyes meeting above; front yellow; above fuscous; thorax immaculate, somewhat hairy; pleura with about two yellow spots; [32] wings entirely ferruginous; stigma darker, reddish; anal membrane small, blackish; feet dull yellowish; tergum with a very slender, bright yellow, transverse line at each incisure; anal appendices arcuated mucronate; inferior process nearly as long. Length over four-fifths of an inch. This small species is common in many parts of the Union, flying rather slowly over the surface of ponds, and, like other specieS, settling upon sticks and other objects that project above the surface. V. L. obscura. Enc. Meth., 562. Is it the male of tenera? [This is the male of L. tenera Say, and is properly L. domitia Drury, 2, pl. 45, fig. 4, of which L. chlora Rambur is a male variety.-UHLER.] The following note, taken at the island of Senpuxten, on the eastern shore of Maryland, I find amongst my papers. L. IMBUTA. — Abdomen red; segments black at tip; thorax green; frontal vesicle bluish; eyes darker. 9 Abdomen greenish; segments black at tips. I have not observed this species in Indiana. [Vol. VIII. OF PHILADELPHIA. 405 CALEPTERYX Leach. 1. C. MATERNA. —Wings steel-blue, with a tings of brown; a white, opaque, costal spot near the tip. Libellcla virgo. y. Drury, Ins. Vol. 1, pl. 48, fig. 2. [This is the female of C. eequabilis, both are preoccupied by Westwood, Drury, Ill. I, pl. 48, fig. 2, who gives the name C. virginica.-U HLER.] 2. C. OPACA.-Bluish green, wings darker, immaculate. Inhabits Massachusetts. S Body bluish-green, or blue, varied with green; [33] beneath blackish; antenne, second and third joints equally long; wings subopaque, blackish-blue, with a tinge of brown, destitute of any costal spot; abdomen blue, segments at their tips greenish; feet black. Length about one inch and seven-tenths. Var.? Wings nearly hyaline, only tinged with the color. For this species I am indebted to Dr. Harris. [Was previously described by Beauvois as C. maculata, pi. 7, fig. 3.-UHLER.] 3. C. ZEQUABILIS.-Blue and green; wings hyaline, a large blackish spot at tip. Inhabits Massachusetts. % Head and thorax green, tinged with blue; labrum blackish violaceous; antennae, second joint rather longer than the third; wings hyaline, without any costal spot, a large fuliginous blackish spot at tip, occupying the fourth of the length on the anterior pair, and the third of the posterior pair; abdomen blue; beneath blackish, towards the tip greenish; anal processes covered inwards, and towards the tip a little downwards, of equal diameter, excepting that on the inner side they are a little dilated beyond the middle, upper side a little spinous; at tip obtuse; inferior processes two, rectilinear, cylindrical, a little shorter than the superior pair, dilated on their inner base; pectus and feet black. Length less than two inches. A female specimen, also sent me by Dr. Harris, may, perhaps, be of the same species, inasmuch as the wing-spots correspond, except in being paler; but the wings have an opaque white spot near the costal tip. [34] 1839.] 406 ACADEMY OF NATURAL SCIENCES LESTES Leach. 1. L. RECTANGULARIS.-Wings divaricated; forceps acutely bidentate beneath. Inhabits Indiana and Massachusetts. $ Body dull greenish, more or less tinged with cupreous; head above black, with a very slight coppery tinge: each side of the mouth yellow; labrum bluish yellow; mandibles piceous at tip; eyes (when recent) ultramarine; thorax with the dorsal suture and lateral vitta, varying from pale yellowish to verditer green; wings hyaline, cellules chiefly pentagonal; stigma blackish, its length nearly three times greater than its breadth; abdomen nearly as long again as the wings; tergum with the basal segments a little paler, darker at their tips, and with a hardly obvious whitish, interrupted band at their bases; ultimate segments much darker; anal segment with a longitudinal carina beyond the middle; forceps shorter than the two ultimate segments taken together, with two oblique, very acute teeth beneath; beyond the middle curved downward and inward, so as to become nearly perpendicular to the basal half; inferior processes almost reaching the incurved tip of the forceps; beneath pale, whitish, more or less tinged with yellowish-green. Length over two inches. $ Abdomen much shorter than in the male; tergum with a more obvious cupreous color; feet (as in the male) pale yellowish, with two black lines on the thighs and one on the tibiae. [35] Length one inch and seven-tenths. This species made its appearance here about the middle of August. It may at once be distingushed, when at rest, from the apicalis, by its divaricating wings. It resembles a South American species, which, not finding described, I have called undulata,* but the abdomen of that insect is much shorter. * L. UNDULATA.-Wings divaricated; forceps undulated at tip. Inhabits South America. % Body pale; head with a broad green band between the eyes; thorax with a double green vitta; wings hyaline; cellules chiefly pentagonal; stigma light brown; abdomen not one-third longer than the wings, coppery green above, whitish at tip; forceps as long as the two preceding segments taken together, undulated at tip; on the basal half not dilated, and having beneath two remote teeth, of which the basal one is very obtuse in form of a lobe. Length one inch and three-fifths. [Vol. VIII. OF PHILADELPHIA. 407 2. L. BASALIS.-Wings sanguineous at base. Inhabits Missouri, Indiana and Massachusetts. S Head cupreous; thorax cupreous, with black sutures; pleura with yellowish, oblique lines; wings with quadrangular cellules and an oblong dusky carpus; basal fourth, bright sanguineous; pectus yellowish; feet black; tibie exteriorly dull yellow; abdomen steel-blue, with slender white incisures; beneath yellowish, with a black middle line; forceps arcuated, spinous above, with a large double tooth beneath. tip obtuse. Length one inch and three-fourths. 9 Body green; head with a yellow, abbreviated line on the anterior orbits, yellow nasal margin and labrum; thorax with a lateral yellow vitta; wings tinted with yellow-brown towards the base; [36] carpus white; abdomen with a slender, longitudinal line, and slender basal annulation on each segment; beneath whitish, with a black line; feet black; thighs yellowish beneath; tibiae yellowish above. Length over one inch and three-fourths, Of this fine species, Mr. Nuttall presented me two individuals which he obtained from Missouri. The bright sanguineous color of the wings in one sex terminates abruptly, and in the other the very pale yellowish-brown color of the same part gradually disappears towards the middle. In the A. caia Drury of South America, (A. Brightwelli Kirby?) the inferior pair of wings have a reddish spot at tip. It is very abundant in some situations in Indiana, and is easily taken. [This is IIetsrina americana Fabr. Ent. Syst. Suppl. 237.UHLER.] 3. L. EURINUS.-Wings immaculate; forceps curved inward, bidentate. Inhabits Massachusetts. % Body blue, somewhat varied with greenish and violaceous; pectus beneath yellowish; antennae, second joint shorter than the the third; labrum and each side of the mouth yellowish; thorax with a yellow vitta, behind bifid and divaricated; between the wings yellowish; pleura chiefly yellow; wings with a slight tinge of greenish-yellow; stigma blackish; abdomen blue, segments 1839.] 408 ACADEMY OF NATURAL SCIENCES greenish at tip; beneath, a black vitta, and segments blackish behind; forceps curved inward, bidentate beneath; inferior processes conic, less than half as long as the forceps; feet black; thighs whitish beneath; tibiae with a white line on the exterior side. Length one inch and nine-tenths. [37] The body is much shorter, and the wings longer than the rectangular S., which it resembles; the inferior anal processes also are shorter, and the superior pair not decurved so much. From Dr. Harris. AGRION. 1. A. VERTICALTS.-Head green, blackish above; occiput with a bluish spot on each side. Inhabits Indiana. S Body above dark bluish, somewhat glaucous, with an obso. lete brassy reflection; head light green; above and behind black, with an obsolete brassy reflection; frontal projection black above, sometimes connected by this color with the color of the vertex; eyes bright yellow green, fuscous on the superior surface; occiput with a dilated pearlaceous blue or glaucous spot each side; hairs numerous and rather long; thorax with numerous, rather long hairs; a brassy vitta and lateral black lines; wings hyaline; cellules chiefly quadrangular; stigma short, rhomboidal, brownish; tergum slightly pruinose, tips of the segments a little darker, and extreme base of the segments with an obsolete yellowish band; terminal segments a little darker and slightly iridescent; venter pale green or gray, with a black lines; pectus and pleura greenish; feet greenish; thighs black above; tibiae with a black line on the exterior side. Length one inch. y Body of a darker color than that of the male; the eyes are black above; the occipital spots are [38] small and orbicular; the tergum is brassy-green, with a very narrow, white, interrupted band at base of each segment; two ultimate segments bright pearly blue; anal segment on the superior tip with an emarginate, slight elevation. Length one inch. [Vol. VIII. OF PHILADELPHIA. 409 This species is not abundant. I obtained several specimens in August. 2. A. HASTATA.-Stigma almost detached from the margin, sanguineous. Inhabits Indiana. S Head greenish; above dark metallic-greenish; eyes green, above blackish; frontal projection blackish above: occiput with an orbicular glaucous dot each side; mouth yellowish; thorax brassy-greenish, sometimes tinged with blue; a slender pale line each side of the back; wings with chiefly rhomboidal cellules; stigma of the superior obovate acute, connected with the edge of the wing only by a short petiole, sanguineous; stigma of the inferior wings rhomboidal, blackish: abdomen bright yellow; tergum with green hastate spots and lines;. two or three ultimate segments immaculate; anal segment with an elevated, prominent spine-like process, bifid at tip; two very small, incurved, lateral hooks; venter with a slender, blackish line; pleura, pectus and feet pale green; thighs with a black line towards their tip, obsolete on the posterior pair. Length over nine-tenths of an inch. The edge of the superior wing, opposite to the stigma is a little convex and white. [391 y Head yellowish; above dark metallic-greenish; eyes above light brown, and beneath this color is an obsolete parallel line; occiput with the two spots connected by a paler line; thorax on each side with an obscure tinge of fulvous; stigma of the superior wings not separate from the edge, rhomboidal, yellowish-white; tergum green, tinged with dull fulvous each side before the middle; tail with two small angulated processes beneath, which do not extend beyond the extremity of the abdomen. Var. a. Occiput fulvous; the fulvous color of the sides of the thorax and of the abdomen is more vivid and on the latter prevailing so that the green of the tergum is obsolete before the middle. It is common in August, in meadows. [This is A. venerinotatum, Hald. Pr. Acad. 2, 55; also the same as A. anomalum Ramb. 281.-UHLER.] 1839.] 410 ACADEMY OF NATURAL SCIENCES 3. A. ANTENNATA.-A glaucous occipital band; two basal joints of the antennae subequal. Inhabits Indiana. S Body obscure bluish-green, somewhat metallic; head green before; mouth yellow; vertex and occiput black, the latter with a glaucous band, clavate each side; eyes dark greenish, above blackish; antennae with the two basal joints much thicker than the others, equal in length, the first cylindric, the second attenuated at base; thorax with a glaucous vitta each side of the back; wings hyaline; cellules chiefly quadrangular; stigma rhomboidal, not longer than broad; tergum with a glaucous band'at base of each segment; the green color at tip extends upon the sides; venter glaucous, with a black line; pleura glaucous; pectus paler; feet whitish, with a [40] broad black line on the thighs, and another on the tibiae, excepting the posterior ones. Length one inch and two-fifths. This species is smaller than apicalis, and larger than either verticalis or hastata nob., and is distinguished from them by the elongation of the basal cylindric joint of the antennae being equal in length to the second joint. 4. A. APICALIS.-Two or three ultimate abdominal segments pearlaceous blue above. Inhabits the United States. Head pale brown; a black band on the vertex between the eyes, and sometimes two black circles; thorax pale brown, or bluish pearly, with black sutures; wings hyaline, with chiefly quadrangular cellules; carpus short, rhomboidal, brown, or dull whitish; nervures black; abdomen black-green; segments excepting the terminal three, with a dull whitish, basal annulus, from which proceeds a slender line, and on the side, a broader one of the same color, neither of which reach the tip of the segment; three ultimate segments dull yellowish, or cerulean pearlaceous above and on each side; pleura and pectus pale yellowish; feet pale yellow; thighs lineated with brown; tarsi with black incisures and extremity. Length one inch and a half. A very common species, remarkable, when recent, by the color [Vol. VIII. OF PHILADELPHIA. 411 of the tip of the abdomen and of the thorax, which arrests the attention when the insect is on the wing. [41] But it varies much in color. The vittae of the abdomen are more or less dilated, sometimes hardly visible; the head and thorax are, in some individuals pearlaceous-blue, and the ultimate abdominal segment varies from dull yellowish, with blackish lines, to a bright pearl-blue, sometimes dull-yellowish with a pearlaceous-blue lateral spot on each. It is very common. The female has two small angulated processes beneath the tail, which do not extend beyond the tip of the abdomen, the nails at their extremities are curved downwards; the hooks at the tip of abdomen of the male are not obvious. The description is from recent specimens. The fine blue color disappears in the cabinet specimens. B2ETIS Leach. 1. B. INTERPUNCTATA.-Whitish; head greenish; segments of the tergum black on the posterior edges. Inhabits Indiana. Body yellowish-white, tinged with green; head rather prominent, yellow-green; vertex with a lateral black point; eyes with a longitudinal black line; stemmata distant, each with a black orbit; anterior one less than half the size of the others; seta of the antennae black; front with a black angular line under the antenne; neck distinct, separating the head from the trunk, with a black line each side; thorax somewhat brownish; wings on the anterior margin greenish, with black cross nervures, and a distinct, black, abbreviated, longitudinal [42] line on the middle, between the third and fourth nervures; feet greenish; anterior and intermediate pairs of thighs biannulate with blackish, posterior pair tipped with dusky; tergum with the posterior edge of the incisures black; setse immaculate. Length nearly three-tenths of an inch. The small black spot on the middle of the costal margin is very obvious. The abdomen at tip is more or less obviously ferruginous. 1839.] 412 ACADEMY OF NATURAL SCIENCES 2. B. ARIDA.-Brownish; posterior pairs of feet and setae white. Inhabits Indiana. Body reddish-brown, with dusky incisures; head rather prominent, whitish, varied with ferruginous; vertex with a small black spot each side on the orbit; eyes rufous, with a whitish vitta; stemmata prominent, approximate; anterior one nearly as large as the others; wings immaculate, inferior pair more than one-third the length of the other; anterior tibiae whitish, obscure at base and tip; posterior pairs of feet and setae greenish-white; tergum with the posterior margins of the segments. Length two-fifths of an inch. It occurs about the middle of June. 3. B. VERTICIS.-Yellowish-white; head and double thoracic vitta ferruginous. Inhabits Indiana. Body yellowish-white; head sessile; vertex ferruginous; thorax with two ferruginous vittae, confluent before, and becoming obsolete behind; wings with the nervures, except those of the margin, [43] black; inferior wings not extending beyond the fourth abdominal segments; setae hardly longer than the body, the incisures black; feet white; anterior thighs ferruginous at tip; anterior tibiae at tip, and their tarsal incisures, fuscous. Length over one-fourth of an inch, of the setae over threetenths. Caught in the window in August. 4. B. OBESA.-Body short; wings blackish, with a hyaline spot, and numerous smaller ones. Inhabits Indiana. Body very short, robust, blackish livid; wings dark brown or blackish, with numerous small, transverse, hyaline, very oblique, semifasciae about the middle on the anal half; inferior pair excepting on the apical margin with numerous transverse, abbreviated, hyaline lines; abdomen with a dull, rufous, livid margin to the segments; setee very short, hairy, with black incisures; feet pale yellowish; incisures of the tarsi black Length over three-tenths of an inch. This species is not common. [Vol. VIII. OF PHILADELPHIA. 413 The wings are longer than the body, and the setm not longer than the abdomen. EPHEMERA. E. HILARIS.-Minute, white; stethidium pale fulvous; abdomen with three lateral points. Inhabits Indiana. Body white; eyes black, double; stethidium pale [44] fulvous; pleura and pectus with a few abbreviated dusky lines; wings two, ample, costal margin slightly dusky; abdomen depressed, with three brownish punctures on each side towards the tip; seta elongated. Length one-tenth of an inch. The smallest species I have seen. I caught several of them about the candle, on the evening of September 4th. They vary in having the brownish lines of the pleura and pectus obsolete, or altogether wanting. FORMICALEO Geoff. 1. F. OBSOLETUS.-Antennas white in the middle; abdomen with white bands. Inhabits the United States. Head dull whitish, with a broad, dark, honey-yellow band between the eyes; antennae fuscous, middle fourth whitish; thorax dull whitish; wings hyaline: anterior pair with a few obsolete, small, brownish spots or transverse abbreviated lines, two of which on the posterior margin are oblique, and a somewhat larger one on the costal margin near the tip; posterior pair with fewer spots, about three or four subcostal distant ones, and a large one on the terminal fourth, and a less obvious apical one; abdomen blackish, with a whitish band on each segment; beneath with a broad blackish vitta each side over the feet from the head to the abdomen; feet fuscous, posterior pair with a white annulus towards the tip, and at base and their tibia whitish. [45] Length of body about one inch. This species is rather common. 2. F.? GRATA.-Wings at tip varied with black and pale carneous. 1839.] 414 ACADEMY OF NATURAL SCIENCES Inhabits Indiana. Body blackish; head and thorax varied with yellowish; wings, on the apical third, varied with flesh color, and a large trifarious undulated, blackish mark; superior pair with a'few blackish spots on the middle nervures, and on those of the anterior submargin; feet fuscous, with a yellowish line. Length to the tip of the wings, about two inches. This beautiful species is very rare. A specimen was presented to me by Mrs. Corson; it was taken at her residence, near Evansville, Indiana. Thd palpi in the specimen are deficient. [This is Myrmeleon roseipennis Burm. 2, 995.-UHLER.] CHRYSOPA Leach. C. OCvLATA.-Pea-green; head and thorax spotted; tarsi brownish. Inhabits the United States. Antennae pale brownish; first joint white, with a sanguineous band at base above, second joint black; eyes golden; palpi alternately black and white; labrum with two dilated sanguineous vittae; between the eye and mouth is a black, angulated line; base of the anteunse enclosed by two black circles; which are tinged with sanguineous above; above each antenna are two blackish spots, of which the anterior ones are sometimes confluent with the [46] circles of the antennae; thorax with two series of three blackish spots in each, and two or three lateral spots; wings hyaline, iridescent, having the transverse nervures varied with black; tarsi pale brownish-yellow. Length to the tip of the wings three-fifths of an inch. This beautiful little insect is very common. When irritated, it diffuses a strong offensive odor, similar to that of human excrement. It is the analogue of the C. perla L., with which I have hitherto confounded it, but, judging by Donovan's figure, it is never so large. Donovan says the perla stinks before a storm; our species has always that quality when irritated or alarmed. [This is C. euryptera Burm. 2, 980.-UHLER.] AMERICAN PHILOSOPHICAL SOCIETY. 415 [From the Transactions of the American Philosophical Society, New Series, vol. 1, 1818, pp. 401-426.] A Monograph of North American insects, of the genus CICINDELA. Read, 7th November, 1817. It will perhaps be thought necessary, previous to entering into a technical detail of the characters of the genus Cicindela, and of the indigenous individuals which are comprehended by it, that some account of the manners of this sprightly tribe should be given, and of such circumstances, relating to them, as may serve to present them to the recollection of the general observer..1 shall accordingly proceed to state, that these insects usually frequent arid, denudated soils; are very agile, run with greater celerity than the majority of the vast order to which they belong; and rise upon the wing, almost with the facility of the common fly. They are always to be seen, during the warm season, in roads or pathways, open to the sun, where the earth is beaten firm and level. At the approach of the traveller, they fly up suddenly to the height of a few feet, pursuing then a horizontal course, and alighting again at a short distance in advance, as suddenly as they arose. The same individual may be roused again and again but when he perceives himself the object of a particular pursuit, he evades the danger by a distant and circuitous flight, usually directed towards his original station. It is worthy of observation, as a peculiarity common to the species, that when they alight, after having been driven from [402] their previous position, they usually perform an evolution in the air near the earth, so as to bring the head in the direction of the advancing danger, in order to be the more certainly warned of its too near approach. They lead a predatory life, and as it would appear, are well adapted to it, by their swiftness, and powerful weapons of attack. The beaten path, or open sandy plain, is preferred, that the operations of the insects may not be impeded by the stems and leaves of vegetables, through which, owing to their elongated feet, they pass with evident difficulty and embarrassment. They 416 TRANSACTIONS OF THE prey voraciously upon the smaller and weaker insects, upon larva and worms, preferring those whose bodies are furnished with a membranaceous cuticle, more readily permeable to their instrumenta cibaria. The same rapacity is observable in the larva, or imperfect stage of existence, of these insects, that we have occasion to remark in the parent; but not having been endowed by nature with the same light and active frame of body, they are under the necessity of resorting to stratagem and ambuscade for the acquisition of the prey, which is denied to their sluggish gait. The remark is, I believe, generally correct, though liable to many signal exceptions, that carnivorous animals display more cunning, industry, and intelligence, than those whose food is herbs, for the acquisition of which, fewer of the mental attributes are requisite; we see throughout the animated creation, that the development of these qualities, as well as of the corporeal functions, are in exact correspondence with their necessities; and that where a portion of the one is withheld, an additional proportion of the other is imparted. This larva has a very large head, elongated abdomen, and six short feet placed near the head; when walking, the body rests upon the earth, and is dragged forward slowly by the feet. Notwithstanding these disadvantages they contrive means to administer plentifully to an appetite, sharpened by a rapid increase of size. A cylindrical hole is dug in the ground to a considerable depth, by means of the feet and mandibles, and the earth transported from it, on the concave surface of the head; this cell is enlarged [403] and deepened, as the inhabitant increases in size, so that its diameter is always nearly equal to that of the head. At the surface of the earth they lay in wait for their prey, nicely closing the orifice of the hole by the depressed head, that the plain may appear uninterrupted; when an incautious or unsuspecting insect approaches sufficiently near, it is seized by a sudden effort of the larva, and hurried to the bottom of the dwelling, to be devoured at leisure. These holes we sometimes remark, dug in a footpath; they draw the eye by the motion of the inhabitant retreating from the surface, alarmed at the approach of danger. I shall now proceed to offer some remarks on the affinities of this genus, and endeavor to point out the differential traits, by [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 417 which it may be distinguished from its congeners. Ci'ldclta, according to Linnsus, included not only all the insects, which would at this day be referred to it, but many others, which, however closely allied by habit, are widely distinct in the formation of their oral organs. These were separated by the celebrated systematists, Fabricius and Latreille, into several new genera, to which well defined essential characters have been affixed. These separations have been made upon the best possible grounds; the convenience of the student, and the approximation to natural method. So circumscribed, Cicindela presents a natural group, in which each individual so perfectly corresponds with the others, as well in its internal organization and parts of the mouth, as in habit, or general form of the body, that the entomologist finds no difficulty in distinguishing it from insects of neighboring genera, and referring it to its relative situation. The genera to which allusion is here made, as having affinity with the one under consideration, are principally Colliuris, Therates, Megacephlala, MIdntticora, Elaphrus, and Notiophilus. In constructing the essential character, I have endeavored to ascertain such traits as will at once, invariably, distinguish Cicinddal from all other known genera of the Pentamerous Coleoptera, and prevent the occurrence of error in the reference of species to it. In external form, Cicindela [404] borders very closely upon the genera here enumerated, and in addition to evidence of frequent recurrence, furnishes us with ample proof, that if habit was the only character consulted in the formation of a system, animals of very different modes of life, and totally distinct in nature, would be blended together by artificial violence. Of the genera above mentioned, the two last are very distinct from Cicindela, by the inarticulated maxillary nail, and by a deep sinus on the inner edge of the anterior tibia, characters which at once approach them to the Carabi, notwithstanding the almost perfect similarity which Elaphrus bears to Cicindela in miniature, by the form and proportions of its body. The mentum or chin also of the former is not divided as it is in the latter genus, and it is worthy of particular remark, that in Notiophilus there exists the spine and recipient cavity of Elater. Colliuris is composed of two species, natives of the East Indies, and one of South America, distin1818.] 27 418 TRANSACTIONS OF THE guished by the cylindrically-conic thorax, more elongated body, and narrow, transverse mentum, which is widely emarginated, without a conspicuous inner division, but in other respects much resembling Cicindela. A genus has been lately formed by Mr. Latreille, under the name of Therates, for an insect of the South Sea Islands, which Fabricius had named C. labiata. This has a strikingly discrepant peculiarity in the form of the intermediate palpi, which are abbreviated into a spine-like process. Manticora includes two species, indigenous to the Cape of Good Hope, which resemble Cicindcla by the form of the mentum, in which there is scarcely any difference; the jaws also are similar, and the mandibles not unlike; but a good distinctive character rests in the palpi, of which the posterior are larger than the intermediate ones; the abdomen also is somewhat pedunculated, and embraced each side by the elytra. The last proximate genus which I shall notice, is that of Megacephala, of which at least two species, the Carolina and Virginica, are natives of this country, and are principally found in the Southern States. In this genus, as in those before adverted to, there is no difficulty in pointing out good and substantial characters, by which [ 405 ] it may be readily known; the anterior palpi are elongated, and reflected, not equal to the intermediate ones, as in Cicindela; the inner division of the mentum is much shorter and the front of the head convex. Having thus noted the differences existing between this genus and each of its neighboring genera, I shall next proceed to lay down its characters, distinguishing them into Essential, Artificial and Natural, for the first of which the preceding remarks will furnish materials; and finally, I shall endeavor to describe the species with such accuracy and detail, that they may be readily known. [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 419 Order V.-COLEOPTERA. Section I. PENTAMERA.-Family I. ENTOMOPHAGA.-Tribe I. CICINDELETE. CICINDELA. Cicindela Linn. Fabr. Latr. Buprestes Geoff. Essential Character.-Maxillse monodactyle; mentum trifid, inner division scarcely shorter; intermediate and posterior palpi subequal, filiform; tibiae simple. Artificial Character.-Antenne filiform; clypeus shorter than the labrum; maxillae with two very distinct palpi, of which the exterior one is nearly equal to the labial palpi, penultimate joint of the latter hairy; [406] mentum trifid, the divisions nearly equal in length; feet slender, elongated. Anterior tibia without a sinus near the tip. Natural Character.-Body oblong, of a medium size, agile, winged, hairy, above depressed, and punctured. Head as large as the thorax, exserted, inclined, suboval. Vertex rugose, elevated each side upon the eyes, concave on the disk. Antennae filiform, eleven-jointed, shorter than the body, first joint dilated,attenuated at base, and inserted in the anterior canthus of the eye, with which and with the clypeus it is nearly in contact; second joint very small, rounded, third cylindrical, longest, and with the next dilated at tip, succeeding ones subequal, or gradually decreasing in length, and furnished with a few rigid hairs at their tips, terminal one obtuse. Clypeus transverse, very short, contracted in the middle. Labrum coriaceous, very large, transverse, often dentated, exserted, prominent. Mandibles advanced, prominent, attenuated and incurved towards the tip, dentate within, a large compound tooth at the base, and about three other distinct ones nearer the tip. Maxilla corneous, recurved, 1818.] 420 TRANSACTIONS OF THE linear, a little gibbous at the insertion of the palpi, deeply ciliate with rigid bristles within, and armed with a terminal, distinct, moveable, partly incur, ed nail. Palpi six, filiform; anterior pair biarticulate, first joint elongated, rectilinear, a little dilated at tip, almost attaining the apex of the maxilla, second joint linear, incurved over the point of the maxilla and attaining the termination of the nail. Intermediate palpi with the preceding, situate on the back of the maxille, quadriarticulate, first joint [407] abbreviated, attenuated at its insertion, second joint cylindric, elongated beyond the tip of the maxilla and cqua to the two succeeding ones conjointly, third shorter than the terminal one, gradually dilated to the apex, fourth somewhat enlarged towards the extremity, truncate. Posterior, or labial palpi pedunculated, approximate at base, nearly equal to the preceding pair, triarticulate, first joint minute, attaining the tip of the inner division of the mentuni, second elongated, cylindric, very hairy above, terminal one glabrous, half as long as the preceding, truncate at summit. Labium membranaceous, short, concealed behind the mentum. Mentum, corneous, transverse, somewhat concave, trifid, inner division conic, as long or nearly so as the lateral ones, and a little more advanced, lateral ones dilated, and rounded on the external margin, tip conic, the separating sinuses admitting the free motion of the labial palpi. Eyes large, very prominent, reticulate, obovate, distant from the thorax. Trunk.-Thorax subquadrate, length and breadth nearly equal, generally with an anterior and posterior impressed, transverse line connected by a dorsal, longitudinal one giving to the disk a bilobate appearance. Scutel triangular, conspicuous, acutely margined. Pectus hairy, punctured or scabrous, brilliant, prominent between t.he anterior coxae, (sternum) about half as long as the coxpe, concave at tip. Epigastrium usually hairy, punctured, brilliant. Elytra rigid, as long as the abdomen, depressed, incumbent not deflected, rounded behind, wider than the thorax, humerus prominent, rounded before, suture and margin nearly parallel, disk punctured, granulated, granule exceedingly minute. [408] Wings, hyaline, with a few nerves; costal margin strong, stigma dilated, with three hyaline spots. Feet elongated, sub-compressed, slender, formed for running; hind pair longest; anterior [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 421 pair shortest; coxe of the four anterior ones conic-ovate, of the posterior pair minute and concealed; trochanters of the two anterior pairs subtriangular, of the posterior ones large, reniform and prominent; thighs nearly equal to the tibiae, two anterior pairs, a little dilated near the base and attenuated towards the tip, hind pair linear; tibiae slender, linear, not emarginate within, heel armed with two spines; tarsi five-articulate, filiform, longer than the tibiae, joints cylindrical, first joint longest, second, third and fourth gradually decreasing in length, the latter not bilobate, terminal joint as long as the third and furnished with two simple, incurved, acute nails; first, second and third joints of the anterior pairs in the male dilated, hairy beneath. Abdomen.-Subcordate or subtriangular, of six distinct segmlents, five in the female; tergum concave on the disk, with an elevated margin; venter convex, first segment divided into two remote, almost triangular portions, forming the anterior lateral angles, second segment with two deep, rounded sinuses near the middle for the reception of the third pair of coxae, separated by a subtriangular, obtuse portion of the segment; third, fourth and fifth subequal, conspicuously falcate behind at the margin, rather diminishing in size, the last more rapidly narrowed in the male, the sixth segment with an obtuse sinus at the middle tip; tail convex above, truncate beneath, with a deeply indented line near the tip in the female. Lar-ta.-Body soft, cylindrical, elongated, whitish, with a double, erect, dorsal spine on the eighth segment; [409] head coriaceous, colored, depressed and concave above, beneath convex, much broader than the body, rounded, furnished with strong, prominent mandibles, short antennae and two stemmata on each side; first, second and third segments, each furnished beneath with a pair of scaly feet, the former with a coriaceous disk; tail simple. Food. —Insects, worms, &c, in the different stages of their existence. Season.-Spring, summer, autumn. Color.-Green, purplish or black, often varied with the two formler, and exhibiting brilliant metallic tints, the elytra usually with abbreviated bands, lunules, and spots of white or yellow. 1818.] 422 TRANSACTIONS OF THE Obs. The sexes may be distinguished from each other by the three first anterior tarsal joints of the male being dilated, and hairy beneath; the last segment of the body, with an obtuse sinus. The tarsi of the female are simple, the tail canaliculate towards the tip. 1. C. VULGARIS.-Obscure, on each elytron three whitish bands, two of which are curved, and the intermediate one refracted. Length more than three-fifths of an inch. Inhabits North America. Desc. Head blackish or obscure cupreous, green at base above, front with cinereous hair; antennae, first, second, third and fourth joints green, furnished with a few white hairs before, origin of the hairs in punctures, which are more obvious on the basal joint, remaining joints black, opaque; labrum white, with three [410] black teeth at tip and four marginal punctures, one of which behind each of the lateral teeth, and one at each anterior angle; mandibles white at the base, black within and at the tip; palpi above green, beneath purple, the second joint of the labials white. Trunk, thorax quadrate, inconspicuously narrowed behind, obscure cupreous, with distant hairs, submarginal impressed lines blue; feet green; thighs usually brassy-red above; elytra cupreous brown or blackish obscure, with minute, irregular, green punctures; suture and external edge cupreous, each elytron with an external lunule or curved line, originating on the humerus, sometimes interrupted on the margin and curved inwards towards the tip of the elytron, intermediate band refracted, at the centre of the elytron, in an obtuse angle, curved downwards, and terminating near the suture, posterior band, somewhat lunate, terminal. Abdomen, tergum greenish blue, segment brownish or pale at tip; venter blue with a purple shade; tail, and sinus of the male purple. This species I have always been accustomed to refer to C. trifasciata, and it is not without considerable hesitation that I venture to give it a distinct name. Mr. Melsheimer considered it as trifasciata, and that name in his catalogue refers to the ineect under consideration; it is also true, that it corresponds in [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 423 every particular with the short description of that insect in the Syst. Nat. and also in the Syst. Eleut., but this circumstance alone is not sufficient to warrant us in concluding it to be the same, for in this instance, as in very many others wherein brief descriptions are concerned, several distinct species may be referred with equal propriety to the same trivial name. Olivier, in his celebrated work, gives us a few additional characters of the trifasciata, the most important of which " on voit une raie interrompue, le long de la suture, jusque vers le milieu," is with respect to our insect a [411] good discriminative character, in which this line or vitta never has existence; the size also as depicted by him, tab. 2, fig. 18, is not quite half an inch, whereas that of the vulgaris is full three-fifths. From these characters it must be evident that Olivier's trifasciata is a different insect from the one here described, and as he examined the various cabinets in which the insects described by Fabricius are preserved, I rely upon his knowledge of the Fabrician species, particularly as he gives the synonym of that author. Against the correctness of this decision it might be urged, that Fabricius, in his subsequent work, Syst. Eleut., does not refer to the above mentioned figure, neither does he quote Olivier at all under his description of trifasciata; but this objection, however plausible, will have no weight, when we know that he refers to this very figure, the 18th, of tab. 2, for the C. punctulata, an insect with which it has no other than a generic affinity, and for which, on comparison, it could not be mistaken. [Afterwards described as C. obliquata Dej.-LEc.] 2. C. HIRTICOLLIS.-Obscure cupreous, beneath bluish-green, trunk each side cupreous brilliant, hairy; elytra with two lunules, intermediate refracted band and outer margin white. C. hirticollis, Journal of the Academy of Natural Sciences, vol. 1, No. 2, p. 20. Length rather more than half an inch. Inhabits Pennsylvania. Desc. Head cupreous, varied with green or blue, front with cinereous hair; terminal joints of the antennae black, opaque; labrum white, sinuate on the anterior edge, and furnished with a 1818.] 424 TRANSACTIONS OF THE single tooth and eight submarginal punctures producing hairs; mandibles white at the base, within dark green, tip black: palpi white, terminal joints green. Trunk, thorax with the submarginal lines blue, quadrate, not straitened behind; elytra obscure, punctured irregularly with green, punctures larger than in [412] the preceding species, more conspicuously serrate at the hind margin and mucronate at the inner tip: anterior lunule originating on the humerus, continued a short distance on the margin, and curved rather towards the base of the elytron, intermediate band divaricated on the margin, so as to attain the lunules, but is sometimes interrupted before the posterior, refracted in a somewhat acute angle at the centre of the elytron, thence recurved nearly parallel with the suture, and dilated at its termination; posterior lunule terminal; feet red-cupreous, hairy; trochanters purple. Abdomen, venter blue, segments tipped with brassy; tail purple. This insect does not appear to have been described except in the work to which the synonym refers; it had been previously overlooked, probably in consequence of its proximity in point of colors and marking to the preceding species, which it generally accompanies; but a small degree of scrutiny will detect a sufficient number of discriminative characters to warrant us in constituting of this insect a distinct species; in size its female is equal to the male of C. vulgaris, the punctures of the elytra are much larger, the intermediate band is so widely spread out upon the margin, as nearly to connect the anterior and posterior lunules, and the tip of the anterior lunule is curved towards the base of the elytra, and not obliquely towards the tip, as in the preceding species; a striking difference also is perceptible in the upper lip which in that insect is three-toothed, but in the C. hirticollis it is one-toothed. Neither this nor the preceding species have been observed to vary in their colors or markings. [Ante, 2; this description and figure evidently refer to the species afterwards described as C. albohirta Dej. The figure is quite characteristic, and can by no means be regarded as C. balthlmorensis Herbst., (repanlda Dej.)-LEc.] 3. C. UNIPUNCTATA.-Dull cupreous, obscure, naked, base of the mandibles, labrum and marginal dot on each elytron, white. [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 425 C. utnhpunctata, subpurpurascens, labio elytrorumque puncto albis. Fab. Syst. Eleut. pars 1, p. 238. [413] C( unipunctata, violette, brilliante en-dessous, obscure en-dessus; elytres avec un point blanc. Oliv. Inst. 33, tab. 3, fig. 27. Length nearly seven-tenths of an inch. Inhabits the southern States. Dec. tIead entirely rugose, neck above granulate; clypeus narrowed in the middle; labrum much broader in the middle, white, edge brown, strongly three-toothed before, of which the intermediate one is larger, margin with four punctures, of which two are at the lateral angles and the others at the base of the lateral teeth; mandibles white at base, tip black; palpi green. Trunk, reddish-purple on the sides; thorax with the lines not deeply impressed or differently colored, a little narrowed behind; elytra with a slight shade of greenish-olive, convex, without a sutural angle or spine behind, irregularly punctured with green; on the posterior half are some larger, scattered, impressed green dots, a few at the base and in an undulated line near the suture; surface somewhat unequal, a conspicuous indentation towards the base of each near the suture and an oblique, abbreviated, obscure one in the centre of the elytron near the marginal spot, which is subtriangular, white and placed on the middle of the margin; a minute, obsolete, white dot is situate at the posterior curve. Abdomen, venter reddish-purple each side near the base; tail black. Of this insect I have seen but a single specimen, for which I am indebted to Mr. J. Gilliams, who caught it in the state of Maryland. It is very possible that it may be a distinct species from the C. unipunctata as the figure of that insect by Olivier above referred to is rather smaller and of a somewhat different habit; nevertheless as his description agrees very well [414] with our insect, I shall consider it as the same until those who have an opportunity of seeing the original may decide. 4. C. SEXGUTTATA.-Greenish-blue polished, each elytron with three marginal white dots, the two first, nearly equal, the last transverse and terminal. C. 6-guttata, viridis, nitida, elytris punctis tribus marginalibus albis. Fab. Syst. Eleut. 1, p. 241. 1818.] 426 TRANSACTIONS OF THE C. 6-guttata, d'un vert bleuatre brilliant; elytres avec trois points blanchatres, sur le bord exterieur. Oliv. Ent. No. 33, pl. 2, fig. 21, a. C. 6-guttata, elle brille du plus beau verd-bleu. Le pattes sont bleues, les yeux blancs. Herbst. Arch. p. 159, pl. 27, fig. 17. Length of the male more than half an inch. Inhabits North America. Desc. Head green, sometimes glossed with blue; antenna, four basal joints green, remainder black-brown; labrum white, edged with brown, three triangular teeth before, and six marginal blackish punctures each of which latter furnishes a hair; mandibles white above, tip black; palpi green; eyes brown. Trunk green, tinged beneath with blue, but without a cupreous tint, hairs remote and short; feet green; trochanters brassy; intermediate tibia with more numerous short hairs near the tip behind; elytra green, brilliant, behind the middle bluish-purple, which deepens towards the tip, hind margin rounded, obscurely serrate, sutural margin not abbreviated nor mucronate at tip, each elytron marked by three marginal white dots, the first placed in the middle of the margin, one at the posterior curve, and the third transverse and terminal; inferior page blackish, marginal spots testaceous. Abdomen, venter bluishgreen,segments margined, bronzed, edge and tail purple. [415] Var. a. Elytra each with an additional spot, which is fulvous or white, and generally inconspicuous, placed behind the middle triangularly with respect to the two anterior, marginal ones. Var. 0. Each elytron with a single marginal spot, the two posterior ones wanting. This insect is common in Pennsylvania, but not so frequent as either vulgaris or hlrticollis. Its characters are strong and discriminative, so that our synonymes are free from doubt, although that of Herbst represents the eyes as white; but this color is, as in some of the Carabi and many other insects, only to be found in the dried specimen, and is by no means universal. The second variety was brought from the banks of the Missouri, above the confluence of the river Platte, by Mr. Thomas Nuttall. 5. C. DORSALIS.-Bronzed, elytra white, each with two curved [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 427 lines on the disk, suture, and curved branch near the base, green; tail testaceous. C. dorsalis, Journal of the Academy of Natural Sciences, vol. 1, p. 20. Length nearly three-fifths of an inch. Inhabits New Jersey. Desc. Head bronzed, naked, edges green; antennae brown, basal joints green, the third hairy before; labrum white, not emarginate at the anterior angles, broad before, and furnished with a single tooth, eight punctures very near the edge, of which six are equidistant on each side of the tooth, the others remote; clypeus almost obsolete above; mandibles white above and beneath, tips and teeth within [416] black-green, a very strong tooth beneath, near the tip of one mandible, the other simply a little angulated in that part; palpi white, tip of the terminal joint of each blackish. Trunk cupreous, covered each side by short, dense, prostrate, cinereous hair; thorax bronzed, varied with green, margin and longitudinal dorsal line hairy; scutel green or bronze; elytra white, with very minute, irregular punctures, and a few larger ones on the anterior margin; suture and a lunated branch near the scutel, curving on each elytron and abbreviated behind, the middle of the base green, disk with two abbreviated green bracket-formed lines, of which one curves outwards and the other inwards, respectively terminating at one end opposite the centre of the other. Abdomen, venter bronzed, segments margined with purple, having dense, cinereous, prostrate hair each side; tail and tip of the last abdominal segments testaceous. This very fine and beautiful species I discovered a few years ago on the sea beach of New Jersey. In several of the Cicindelas there is a strong tooth on one of the mandibles near the tip, beneath pointing downwards, which is very conspicuous in the present species; these teeth are I believe never found on both mandibles, otherwise the mouth could not be properly closed, accordingly the tip of the armed jaw is always beneath the other in repose; neither is the weapon confined to the right or left mandible, but is found upon either indifferently, whilst upon the corresponding part of the other, is usually a very small angle. It must be remarked that this insect seems to approach a species 1818.] 428 TRANSACTIONS OF THE described by Fabricius, as a native of the island of St. Thomas, and I here subjoin his definition, " C. viridi-aenea, elytris albis: sutura lunulaque viridi-aeneis. Syst. Eleut." [417] [Ante, I; afterwards described as C. signata Dej.-LE.,] 6. C. MARGINATA.-Olivaceous, obscure, sometimes with cupreous reflections; cheeks, sides of the trunk and of the abdomen, with short dense hair, each elytron with a whitish margin, two abbreviate branches, an intermediate refracted one, and two dots at base. C. marginata, viridis, elytris punctis quinque, lunulaque apicis albis. Fabr. Syst. Eleut. 1, p. 241. Length of the male more than half an inch. Desc. Head greenish, olivaceous varied with purple, and edged with blue; antennas purple at base, terminal joints brown; front with prostrate hair; labrum white, with several minute, obtuse teeth, in the male, with a single more prominent one, and about ten marginal punctures, lateral angles rounded; cheeks covered with dense hair; palpi white, terminal joint of each black at the tip. Trunk, on each side cupreous, concealed by short, cinereous hair; thorax bronze or olivaceous, posterior impressed line green or reddish; elytra olivaceous-obscure, or tinged with cupreous, margin pale, uniting the anterior and posterior lunules, the former with an accessary spot at the middle of the base, and a smaller one interrupted from its tip, the latter continued a short distance upon the sutural margin, intermediate band refracted in a very acute angle, at the centre of the elytron elongated, and dilated behind, terminating at the suture, in a transverse line drawn from the tip of the posterior lunule; trochanters testaceous. Abdomen, venter very hairy each side, segments bronzed and margined with purple; tail testaceous, of the female blackishpurple. [418] The markings of the elytra are in many specimens so far obsolete, as to be only distinguishable in a particular light; and they are always less obvious than those of the vulgaris, hirticollis, &c., to the latter of which, this insect, in the distribution of its bands and lunules, bears some resemblance. [Afterwards described as C. var iegata Dej.-LEc.] [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 429 7. C. OBSCURA.-Black, each elytron with two white marginal spots and a terminal lunule. C. obscura, nigra, elytris punctis duobus marginalibus, lunulaque apicis alba. Fabr. Syst. Elcut. 1, p. 238. Inhabits North America. Desc. Head black, naked; antennae brown at tip; clypeus large; labrum white, three-toothed, not emarginate, at the anterior angles, margin with about six punctures, of which one is placed each side of the larger central tooth; mandibles white on the exterior base above; palpi piceous. Trunk, black, immaculate; elytra tinged with brown on the posterior half, punctures minute, not deeply impressed, two white marginal macula, of which the anterior one is smaller, rounded, and placed near the humerus, the other large, triangular, situate in the middle of the margin, lunule terminal; tarsi piceous. Abdomen, black, naked, immaculate. Var. a. Labrum black or piceous, anterior marginal spot of the elytra wanting. Very distinct from any other species with which I am acquainted, for the variety I am indebted to MIr. J. Gilliams, who caught it in the State of Maryland. [Not the C. obscura Fabr., which is the European C. germanica; it is a black race of C. rugifrons Dej., and was described as C6. modesta Dej.-LEc.] [419] 8. C. PURPUREA.-Head, impressed lines of the thorax and margin of the elytra green, the latter with a central, reclivate, oblique, abbreviated band, terminal line and intermediate dot white. C'. purpurea, purpurine en-dessus, d'un vert bleuatre en-dessous; elytres avec une band courte, et deux points blancs. Olivier, Ins. 33, t. 3, fig. 34. C. marginalis? thorace elytrisque cupreis; marginibus viridibus, elytris lunulis duabus albis, Fabr. Syst. Eleut. 1, p. 240. Length of the male about three-fifths of an inch. Inhabits North America. Desc. Head red-cupreous, hairy with green edges, and two distinct green lines between the eyes, originating at the base of the antennae, and approximating towards the vertex; antennse 1818.] 430 TRANSACTIONS OF THE green at base, tip brown: clypeus blue; labrum white, threetoothed, edge black and with about eight marginal punctures; mandibles black within and at tip; palpi green. Trunk, green, each side golden; thorax with a cupreous disk; elytra olivaccous-green to a brilliant cupreous-red, margin bright green, each with an oblique, reclivate band near the middle, originating at the green margin, and terminating at a distance from the suture, a transverse line at tip and an intermediate submarginal dot, white; trochanters purple; tibiae hirsute behind. Abdomen, venter green, sides purple. Var. a. Elytra destitute of the intermediate dots. C. ramosa Melsheimer, Catalogue, p. 46. Var.?. Head and thorax green; elytra as in the preceding variety. Var. I. Head and thorax green; elytra immaculate. [420] Var. J. Black, opaque above, beneath polished; labrum, lines and spot of the elytra, as in the species; cheeks and venter a little glossed with purple. C. tristis? nigra, elytris macula media flava. Fabr. Syst. Eleut. 1, p. 235. (Var.) This insect is subject to numerous varieties in color and markings, but those above described are the most striking of any that have fallen under my observation; the anterior band is sometimes obsolete towards the tip, so as to leave a very short perfectly transverse line attached to the margin. The variety G, is much more common in Pennsylvania than either of the others. It is probable that the marginalis of Fabricius will prove to be the same with this, but Olivier's designation, having the right of priority, will of course be adopted. The variety 8 is a memorable departure from the appearance of the species, no trace of the original coloring remains upon it, but that of the bands, &c., of the elytra; is seems a link in the connecting chain which unites the purpurea with the species described by Fabricius, under the trivial name tristis, and seems to be alienated from it, only by the presence of an intermediate dot and terminal line; the central reclivate band is precisely the same in form. Nevertheless it is highly probable that the tristis is a distinct species, although for the present I have placed it here as a variety, having no opportunity of examining a specimen. [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 431 9. C. PUNCTULATA.-Obscure cupreous, beneath varied with blue and purple, each elytron with a few white points and terminal lunule, an undulated line of distant green punctures near the suture. C. punctulata, bronzee en-dessus, bleu en-dessous; elytres avec quelques points blancs, et une suite de pointes enfonces brillans. Oliv. Ins. No. 33, tab. 3, fig. 37, a. b. [421] C. punctulata capite, thoraceque cupreis, elytris punctatis obscuris: punctis lunulaque apicis albis. Fabr. Syst. Eleut. 1, p. 241. C. obscura Melsh. Catal. Length about half an inch. Inhabits North America. Desc. Head cupreous obscure, margin, cheeks and two lines between the eyes blue; antennae brown, base cupreous; front naked; labrum white, sinuated on the edge, with a single prominent tooth and six submarginal punctures; palpi, labials white, last joint green, external maxillary ones piceous, third and fourth joints green. Trunk, deep blue, varied with purple beneath, sides cupreous; thorax color of the head, impressed lines and lateral margin blue; elytra color of the thorax, irregularly punctured with green, on each an undulated line of distant larger green punctures near the suture, and a few at the middle of the base; five small white dots, of which three are on the disk arranged in an oblique line, one near the humerus, the second central, third near the suture, the fourth and fifth dots marginal situate opposite the two preceding ones, terminal lunule straight, not ascending the suture. Abdomen, venter varied with purple and blue; tail bronzed. Var. a. Elytra destitute of the white dots, the lunule only remaining. A very common insect, its variations are confined to changes in the number and magnitude of the spots of the elytra; the anterior marginal dot is always minute, and of all the others most frequently wanting, the two anterior spots of the disk also are often invisible. Fabricius by mistake refers to fig. 18, tab. [422] 2, of Olivier's Insects, for this species, which is intended for the C. trifasciata, a native of South America, rather smaller than this insect and totally distinct in its characters. 1818.] 432 TRANSACTIONS OF THE 10. C. FORMOSA. —Red-cupreous brilliant; elytra with a threebranched, broad white margin. C. formosa, American Entomology, pl. 6. Journal of the Acad. of Nat. Sciences, p. 19. [Ante, 1, 35.] Length seven-tenths, breadth one-fourth of an inch. Inhabits the sandy alluvions of the Missouri, above the confluence of the river Platte. Desc. Head red-cupreous, brilliant; front hairy; antennse fuscous, basal joint green, second bronzed, third and fourth purple; clypeus and cheeks deep purple, the latter hairy; labrum white, with a blackish three-toothed edge, and six marginal punctures; mandibles black, base above white; palpi, basal joints testaceous or pale, terminal one green tipped with bronze. Trunk, deep purple, sides green, hairy; thorax color of the head, scabrous; pectus green before: feet purple; coxe hairy; trochanters bronzed; elytra color of the head and thorax, with a dilated, white, uninterrupted margin, and bluish edge, anterior and posterior branches, short, intermediate band flexuous and oblique, nearly attaining the suture, and with the other branches dilated, equal to the margin; hind angle not conspicuously mucronate. Abdomen, venter exclusively purple, covered with cinereous hair; tail bronzed. The most beautiful, and one of the largest of the North American species; in the arrangement of the bands, &c. [ 423 1 of the elytra, it has some resemblance to the C. hirticollis, but is a perfectly distinct species. [Fig. 10 of the plate by an error represents a variety of C. pusilla.-SAY, MS. correction.] 11. C. DECEMNOTATA.-Green above, tinged with cupreous; elytra margined with bright green or bluish, four white spots and an intermediate refracted band. C. 10-notata American Entomology, pl. 6. Journ. Acad. Nat. Sciences, p. 19. [Ante, 1, 34.] Length three-fifths of an inch, nearly. Inhabits with the preceding. Desc. Head green, varied with cupreous and blue; front hairy, labrum white, unequal, edge black, and tridentate; antenne fuscous, basal joints variegated; palpi dark purple, varied with green. Trunk, green, a little bronzed each side; thorax [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 433 bluish, the bilobate disk cupreous; scutel blue; elytra dull olivaceous-green, with a slightly cupreous tint and blue margin, four white dots and refracted band; of the anterior marginal dots, one is placed on the humerus, and the second equidistant from the band, which is refracted at the centre of the elytron, and terminated near the suture, in a transverse line with the penultimate spot; this last is large, submarginal, and orbicular; terminal spot transversely triangular, and with the first interrupting the margin; sutural angle not mucronate. Abdomen, venter bluish-green, with a few hairs each side; tail purple. The specimen from which this description was taken is a female; it resembles C. purpurea in its differently colored elytral margin, but is sufficiently distinct from that insect by its more numerous spots, &c. [424] [The figure is so different from that given in American Entomology, ante 1, 34, that it is impossible to believe that both have been taken from the same specimen. The present figure evidently belongs to one of the western varieties of C. punctulata, but the description does not agree with that species.-LEc.] 12. C. PUSILLA.-Body above blackish obscure, beneath black-blue or greenish; trochanters testaceous; elytra with two lunules, an intermediate band, which is divaricated on the margin. C. pusilla, Journ. Acad. Nat. Sci., p. 21. [Ante, 2.] Length less than half an inch. Inhabits with the preceding. Desc. Head dark green, obscure; antennae fuscous, bronzedtestaceous or greenish at base; labrum white sinuate, and brown on the edge, with six or eight marginal punctures; palpi testaceous, bronzed at tip; front naked. Trunk obscure; thorax with the impressed lines not differently colored; elytra black, each with two lunules and a recurved band, attenuated, anterior lunule elongated, much narrowed, acute at tip, posterior one not dilated at the suture, and incurved from the margin; band dilated near the margin into a triangle, recurved before the middle, and passing very obliquely and nearly in a right line, to its termination near the suture, sometimes obsolete at tip; feet testa1818.] 28 434 TRANSACTIONS OF THE ceous, thighs dark green. Abdomen, venter dark blue, segments tipped with bronze, almost naked each side; tail purple. Var. a. Elytra destitute of the intermediate band. This is the smallest of our species, being less than punctulata, and of the most sombre coloring; the lunules and band hardly relieved by a contrast with the general surface, as they are very narrow. The preceding descriptions were drawn out from specimens in my possession, the three last species, were caught by [425] Mr. Thomas Nuttall on the Missouri, and now form a part of his collection; to him I am indebted for the permission to describe them. Specimens of those for which I have referred to Melsheimer's Catalogue, were sent me by the Rev. John Melsheimer of Hanover, a zealous entomologist, and son of the author of that work, who may justly be entitled the father of entomology in this country. In order that the present paper may comprehend all the known North American species of this genus, and thereby present a complete Monograph, I subjoin from Fabricius, three descriptions of species, which have not fallen under my notice; I therefore have taken the liberty to translate his description as follows:13. C. VIOLACEA.-Bright blue polished; labrum white. Inhabits Carolina. Cabinet of Mr. Bosc. Desc. Of a medium size; body bright blue, polished, covered with elevated scabrous punctures; antennse dark brown at tip; labium (labrum) and base of the mandibles above white. Syst. Eleut. part 1, p. 232. Is not this referable to the genus Maegacephala.? 14. C. ABDOMINALIS.-Black, labrum and lunule at the apex of the elytra white; abdomen rufous. Inhabits Carolina. Cabinet of Mr. Bosc. Desc. Smaller than C. germanica; head and thorax cylindrical, black-cupreous, a little polished; labrum [426] white; elytra black, an obscure line of impressed punctures at the suture, [Vol. I AMERICAN PHILOSOPHICAL SOCIETY. 435 and white lunule at tip; body and feet greenish-brassy, polished; abdomen ferruginons. Syst. Eleut. part I, p. 237. 15. C. MICANS.-Head and thorax cupreous polished; elytra obscure; minute points and lunule at the apex white. Inhabits North America. Syst. Eleut. part 1, p. 238. It is highly probable that this description was intended to designate an insect very similar to the C. puactulata, perhaps the same, or only a variety of it, for it is as characteristic of that species as it can be of any other. [From Transactions of the American Philosophical Society, New Series, Vol. 2, No. 1, 1823.] Descriptions of Insects of the Families of CARABICI and HYDROCANTHARI of Latreille, inhabiting North America.* Read August 26th, 1819. In the first volume of the New Series of the Transactions of this Society, I commenced the regular description of our North American insects, by a Monograph of the indigenous Cicindeetee; a Linnsean genus which occupies the first station in the improved classification of Latreille. I now proceed to lay before the Society descriptions of such of our native insects, as were included by Linne, in his three genera, Carabus, Dytiscus, and Gyrinus. The two former of these, but more particularly the first, are now considered as great families, constituting numerous genera, and agreeably to the order in which I have enumerated them, immediately succeeding the Cicindeletx, in the system which I have adopted. *The title page of the 2d vol. of the New Series of these Transactions bears date 1825, which was the time of completion of the volume, but the late Dr. T. W. Harris informed me in a letter, that he received from Mr. Say a copy of this paper, with the following addition to the title:"Printed and published by Abraham Small, 1823." This, of course, gives Say's names precedence of those published by Germar in his Sp. Ins. Nov. in 1825.-LEE. 1823.] 436 TRANSACTIONS OF THE The Carabji are very numerous, are insectivorous, terrestrial, commonly inhabiting moist places, under stones, or [ 2 ] fallen trees, under bark or on flowers, &c. They generally run briskly when disturbed, and many species diffuse a foetid odor, or discharge a peculiar, pungent, acetous gas. The Dytiscii are much less numerous than the preceding, but are equally nourished by animal food. They inhabit the waters, occasionally visiting the surface for the purpose of respiration; they move with rapidity and ease through the water and the air but on land their gait is embarrassed by the natatory form of the posterior feet. The Gyrinii, which are now included in the same family with the Dytiscii, are comparatively few in number of species, and those few are so intimately united in nature by a similarity of character and habit, that no division has yet been found necessary in the genus, which still remains unchanged as it was first established in the artificial system. These insects, like those of the preceding Linnuean genus, are insectivorous and aquatic; they do not, however, like them, remain at the bottom to seek their prey, but chiefly confine themselves to the surface. They describe graceful curvatures or gyrations on the surface of the water with a pleasing facility of movement, without exhibiting to the eye the oar-like feet by which that celerity is effected. When alarmed, they dive to the bottom with swiftness, carrying with them a globule of air, that their respiration may not be suspended. When irritated, they eject a lactescent fluid, which, in many instances, diffuses an agreeable odor, somewhat similar to that of the Calycanthus floridus of botanists. They fly with much ease and chiefly at night, but their movements on land are uncouth and embarrassed. After thus briefly noticing the most prominent features exhibited by these insects, it may be proper to observe, that the descriptions are drawn out from such specimens only as have fallen under my own observation, and which I had an opportunity of examining and comparing together, in order the more effectually to indicate their differential characters. The individuals are chiefly preserved in my cabinet; and for such as I do not possess, I have carefully referred to those collections from which I [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 437 have described them. I have scrupulously [3] retained all the specific names, which have been given by the late Rev. F. V. Melsheimer, in his Catalogue of the insects of Pennsylvania; excepting only such as have been previously employed in the same genera by other entomologists; and so far as I could ascertain them by the aid of the scientific intelligence of his son the Rev. J. F. Melsheimer, who has liberally furnished me with specimens from his collection. I am also indebted to Mr. Thomas Nuttall, who has confided to my care his entire collection, with permission to avail myself of the opportunity of describing such of them as are new. I have not thought it necessary to draw out the generic descriptions at length, as this has already been done with sufficient detail by Professor Bonelli of Turin; whose excellent papers I have not yet had the good fortune to peruse. If, in the description of some of the species, I have been anticipated by the labors of this, or any author, I shall immediately relinquish my claims, and do justice to the real discoverers, when their labors shall meet my eye. To the inflexible Linnaean entomologist, who may object to the numerous genera which are here adopted, I will merely observe, that each of those divisions which are here called families, he may regard as only genera, (as they coincide with those of Linnaeus,) and to each of the species described he may add the characters of those divisions which are, in this essay, called genera; thus the system as it stands, complicated as it is by the vast accession of discoveries of recent date, will afford him every facility, which he might suppose to result from a scrupulous adherence to the Linnoean method. The modern entomologist will readily perceive that I have not adopted all the genera of M. Bonelli, but that many of these are included under the genus Feronia of Latreille. In this respect I had no option; having no definitions of such genera, with the exception of those contained in the Regne Animal, many of which are too brief to be exclusively relied upon. 1823.] 438 TRANSACTIONS OF THE ENUMERATION OF SPECIES. BRACHINUS. 15. H. baltimoriensis. CHLENIUS. B. fumans. 16. H. caenus. [5] 1. C. sericeus. CYMINDIS. FERONIA. 2. C. aestivus. 1. C. sinuatus. 1. F. musculis. 3. C. lithophilus. 2. C. decorus. 2. F. basillaris. 4. C. emarginatus. 3. C. viridipennis. 3. F. imnpuncticolllis. 5. C. pusillus. 4. C. purpureus. 4. F. angustata. 6. C. laticollis. 5. C. pilosus. 5. F. obesa. 7. C. impunctifrons. LEBIA. 6. F. lineola. 8. C. nemoralis. 1. L. tricolor. 7. F. pallipes. 9. C. solitarius. 2. L. vittata. 8. F. atrimedia. 10. C. pennsylvanicus. 3. L. atriventris. 9. F. longicornis. DICELUS. 4. L. ornata. 10. F. unicolor. 1. D. purpuratus. 5. L. viridis. 11. F. stygica. 2. D. dilatatus. 6. L. platicollis. 12. F. moesta. 3. D. furvus. GALERITA. 13. F. sigillata. PANAGAiUS. G. americana. 14. F. placida. 1 P. crucigerus. ODACANTHA. 15. F. tartarica. 2. P. fasciatus. 1. 0. pennsylvanica. 16. F. muta. CYCHRUS. 2. 0. dorsalis. 17. F. submarginata. 1. C. elevatus. SCARITES. 18. F. impunctata. 2. C. unicolor. S. subterraneus. 19. F. ventralis. 3. C. stenostomus. PASIMACHUS. 20. F. adoxa. 4. C. bilobus. 1. P. depressus. 21. F. gregaria. CALOSOMA. 2. P. subsulcatus. 22. F. terminata. 1. C. scrutator. CLIVINA. 23. F. autumnalis. 2. C. calidum. [6] 1. C. bipustulata. 24. F. limbata. CARABUS. 2. C. viridis. 25. F. parmata. 1. C. sylvosus. 3. C. lineolata. 26. F. cupripennis. 2. C. interruptus. 4. C. pallida. 27. F. convexicollis. 3. C. limbatus. 5. C. sphaericollis. 28. F. honesta. 4. C. serratus. 6. C. globosa. 29. F. 8-punctata. NEBRIA. 7. C. pallipennis. 30. F. nutans. N. pallipes. MORIO. 31. F. cincticollis. OMOPHRON. M. Georgise. 32. F. decora. 0. labiatum. HARPALUS. 33. F. decentis. ELAPHRUS. 1. H. caliginosus. 34. F. extensicollis. E. riparius. 2. H. bicolor. 35. F. ochropeza. NOTIOPHILUS. 3. H. erraticus. 36. F. lucublanda. N. semistriatus. 4. H. pennsylvanicus. 37. F. chalcites. BEMBIDIUM. 5. H. faunus. 38. F. caudicalis. 1. B. honestum. 6. H. herbivagus. 39. F. interstitialis. 2. B. punctato-stria7. H. similis. 40. F. obsoleta. tum. 8. H. vulpeculus. 41. F. punctiformis. 3. B. laevigatum. 9. H. iripennis. 42. F. recta. 4. B. dorsalis. 10. H. viridis. 43. F. hypolithos. 5. B. contractum. 11. H. hylacis. ABAX. 6. B. niger. 12. H. rusticus. A. coracinus. 7. B. oppositum. 13. H. carbonarius. EPOMIS. 8. B. affinis. 14. H. agricolus. E. tomentosus. 9. B. inornatum. [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 439 10. B. flavicaudus. 2. C. fenestralis. 3. H. niger. 11. B. proximus. 3. C. ambiguus. 4. H. catascopium. 12. B. laevum. 4. C. seriatus. 5. H. lacustris. 13. B. variegatum. 5. C. nitidus. 6. H. affinis. 14. B. tetracolum. 6. C. bicarinatus. HYDROCANTHUS. TRECHUS. 7. C. venustus. H. iricolor. 1. T. conjunctus. 8. C. glyphicus. HALIPLUS. 2. T. partiarius. 9. C. obtusatus. 1. H. 12-punctatus. 3. T. rupestris. 10. C. stagninus. 2. H. triopsis. DYTISCUS. LACCOPHILUS. 1. D. firnbriolatus. 1. L. maculosus. GYRINUS. 2. D. verticalis. 2. L. proximus. 1. G. americanus. 3. D. mediatus. HYDROPORUS. 2. G. emarginatus. 4. D. taeniolis. 1. H. undulatus. 3. G. analis. COLYMBETES. 2. H. oppositus. 4. G. limbatus. [ 7 ] 1. C. erythropterus. Order and Section.-COLEOPTERA PENTAMERA. Tribe I.-ENTOMOPHA GA. Family II.- CARABICI BRACHINUS Web. Fabr. Anterior tibia emarginate; elytra truncated at tip; palpi filiform; labium subquadrate; neck none; abdomen with interior vesicles inclosing a caustic, volatile, and detonating fluid; nails simple. B. FUMANS.-Ferruginous; elytra blue-black; venter, testaceous-black. Brachinus fumans, ferruginous; elytra blackish-azure. Fabr. Syst. Eleut., p. 219. Body ferruginous, with numerous minute hairs; head, front longitudinally impressed, each side near the base of the antennae; thorax with a longitudinal impressed line from the head to the scutel; scutel minute, blackish-brown; elytra blackishazure; about seven slightly impressed, very obtuse grooves, more distinct near the suture, and obsolete at the outer margin; separating lines rounded; venter dark reddish-brown. Length eleven-twentieths of an inch. Rather common under stones, &c., in various parts of North America. In common with the other species of the genus, it discharges from the posterior extremity of the body, when [8] alarmed or irritated, a caustic fluid; this is remarkable by an 1823.] 440 TRANSACTIONS OF THE audible detonation, with its accompanying cloud of smoke as in the discharge of a gun. CYMINDIS. Anterior tibiae emarginate; elytra truncated at tip; exterior maxillary palpi filiform; labials terminated by a securiform joint; neck none; body depressed and destitute of the secretory organs which furnish the detonating fluid; nails pectinated. 1. C. SINUATUS.-Black; feet testaceous; elytra with a pale humeral spot and margin. Length one-fourth of an inch. Body punctured, glabrous; antennae, labrum, and palpi rufous; thorax transverse, slightly contracted behind, lateral edge abruptly and minutely excurved behind, forming a minute acute angle, basal lines obsolete, basal edge sinuately rounded; elytra blackish-brown, with a pale, rufous, humeral spot, margin and obsolete geminate spot behind, striae acute, punctured, interstitial lines flat broad; postpectus, punctures obsolete; feet testaceous; venter impunctured. Found by Mr. J. Gilliams in Maryland. [Afterwards described by Dejean as C. pustulata; it belongs to the genus Apenes Lee. Ann. Lye. Nat. Hist. New York, 5, 174.-LEc.] 2. C. DECORUS.-Head blue; thorax rufous; elytra green polished. Length three-tenths of an inch. [9] Carabus decorus, alatus, cyaneus, thorace pedibusque rufis. Fabr. Syst. Eleut. Head blackish-blue, obsoletely punctured; beneath purple black: antennae fuscous; two basal joints rufous-obscure; mouth black; mandibles rufous beneath; trunk rufous, impunctured; beneath somewhat paler; thorax with an impressed line and obsolete transverse rugae; elytra green polished, with punctured striae; deflected edge purplish; feet rufous; tips of the thighs and base of the tibiae black; penultimate tarsal joints bilobated; venter obscure bluish-black. Found by Mr. Nuttall on the Missouri. [Belongs to Calleida Dej.-LEC.] [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 441 3. C. VIRIDIPENNIS.-Elytra green, polished, margined with cupreous. Carabus prasinus Melsh. Catalogue. Inhabits Pennsylvania; rare. Body destitute of hairs; head purple-black; vertex glabrous; front impressed each side near the antennae; antennae testaceous, rather darker towards the tip; thorax green, tinged with purple; a longitudinally impressed line, and transverse, minute, parallel rugse; posterior angles angulated; beneath purple-black, green each side; feet purple-black, paler towards the tips; penultimate tarsal joint bilobate; scutel testaceous; elytra striate, green, polished, reflecting in some lights a slight purpurescent tinge; outer margin cupreous; striae distinct, acute, distant, the marginal one with distant punctures from the humerus to the apex; venter blackish. Length half an inch. This was sent to me by Dr. J. F. Melsheimer; I have not found a specimen, and therefore have considered it as a rare [ 10] species. The name prasinus having been already applied to a different species has rendered it necessary to change it. [Belongs to Calleida, and described by Dejean as C. marginata.-LEC.] 4. C. PURPUREUS.-Purple or violaceous; antenna, mouth and tibiae black. Length seven-twentieths of an inch. Head obsoletely punctured, deep violaceous; antennae fuscous, three basal joints rufous, obscure; trunk deep violaceous; a longitudinal impressed line, and transverse obsolete rugae; elytra deep violaceous, obsoletely punctured, and with minutely punctured, acute, distant stria; a line of marginal punctures; tibiae and tarsi black-brown; penultimate tarsal joint bilobate; venter violaceous; tail black. In form and magnitude resembles C. viridipennis, but is more depressed and wider. Brought by Mr. Nuttall from the Missouri. [I have referred this speeies to Glycia Chaud., but have since failed to find sufficiently distinct characters for that genus to enable me to confirm this reference. The present species be1823.] 442 TRANSACTIONS OF THE longs to a genus, which, like Apenes, has the labial palpi very much dilated, and the clypeus separated from the front by a well defined line; it differs, however, by the thorax not being pedunculated at base, but only very slightly rounded, nearly truncate. -LEC.] 5. C. PILOSUS.-Black-brown, punctured; mouth, antennae and feet rufous; elytra with punctured strim and interstitial lines. Carabus pilosus Melsh. Catalogue. Body somewhat hairy; head deeply punctured; no distinct frontal impression; antennae and mouth rufous; thorax with numerous, profound, approximate punctures, and a longitudinal, impressed line which hardly attains the anterior edge; elytra with punctured obtuse striae which are subequal to the interstitial lines; punctures transverse, dilated, approximated; interstitial lines punctured; epipleura rufous, punctured; feet rufous; pectus punctured; venter obscure, rufous, with distant minute punctures. Length two-fifths of an inch. [1] I have not met with a living specimen of this insect: it is rare. Var. a. A longitudinal, rufous, humeral spot; punctures of the interstitial lines numerous, dilated. In the Philadelphia Museum. Var. /. Thorax margined with rufous; a longitudinal, rufous, humeral spot. Var. 7. Thorax, head, and humeral spots rufous. The thorax of this species seems to vary in the length of its transverse diameter. [Afterwards described as C. pubescens Dej.-LEC.] LEBIA Latr. Bonell. Anterior tibiae emarginate; elytra truncated at tip; palpi filiform; terminal joint cylindrical, hardly truncate; thorax wider than long; penultimate tarsal joint bilobate; nails pectinated. 1. L. TRICOLOR. —Head black; mouth, antennae, thorax and feet ferruginous; elytra green, polished. Length about three-tenths of an inch. [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 443 Head black, polished; front minutely corrugated; vertex glabrous; mouth labrum, and antenna ferruginous or pale testaceous; thorax ferruginous, glabrous, very minutely rugose; a longitudinal impressed line; margin depressed and somewhat ciliated; angles rounded; beneath ferruginous; feet, color of the thorax; scutel color of the thorax; elytra profoundly striate; striae impunctured; interstitial lines convex; marginal line interrupted by punctures from the humerus to the apex; venter blackish. Length about three-tenths of an inch. [ 12] Not uncommon in Pennsylvania. Found also by Mr. T. Nuttall on the Missouri. The name of Lcbias has been more recently applied by Cuvier, to designate a genus of fishes. 2. L. VITTATA.-Rufous; elytra black, with a white fillet and yellowish margin; feet black. Length rather more than one-fourth of an inch. Winged; thorax orbicular, rufous; elytra black, with a white vitta. Fabr. Syst. Eleut. 1, p. 202, Mus. D. Yeates. Antennae black; head rufous; scutel small, rufous; elytra glabrous, shining black with a longitudinal white fillet in the middle; body ferruginous; legs black. Turt. Antennae black; head rufous; eyes black; thorax rufcus, hardly broader than the head; scutel rufous; elytra black, slightly striated; exterior margin and triangular spot around the scutel rufous; a longitudinal white line on each; beneath fulvous; feet black with half of the thighs rufous. (Length of figure one-fourth of an inch.) Oliv. 3, p. 98, pl. 6, fig. 69, a, b. Body impunctured, nearly destitute of hairs; head rufous; antennae black-brown, rufous at base; palpi black; trunk rufous, glabrous; thorax with an impressed longitudinal line; elytra with acute distant strie; two parallel black vittae,-the outer one originating on the humerus and abbreviated near the middle of the tip,-inner one originating at the middle of the base, becomes common before the middle of the suture, and is abbreviated near the inner angle of the tip; an elongated common whitish triangle at base, a white vitta on the middle, and a pale rufous margin and tip; feet black; nails pectinated; coxae rufous; venter rufous. Var. C. Color of the outer margin extended round the base to 1823.] 444 TRANSACTIONS OF THE the scutel, thighs rufous at base, common black vitta continued to the tip. If the figure given by Olivier be correct, the specimens [13] here described must be considered a variety. Several individuals were brought from the Missouri by Mr. Nuttall. They are occasionally taken in Pennsylvania, on flowers. When recent, it is of a much more bright red than when long preserved in the cabinet. The red becomes pale and the white vitta yellowish. Caught in Mr. R. Haines's garden, Germantown. 3. L. ATRIVENTRIS.-Ferruginous; elytra deep purple; venter black. Length one-fourth of an inch. Body impunctured, naked or with very few hairs; antennas brown, three first joints ferruginous; palpi blackish; thorax, disk convex; margin towards the hind angles depressed, hind angles rounded; a longitudinal impressed line; elytra deep blue, with acute, distant, not deeply impressed strise, a series of punctures on the external margin from the humerus to the middle of the tip; punctures more distant on the middle of the margin; nails pectinated; venter black. Found under stones, &c. 4. L. ORNATA.-Rufous; head and elytra black; the latter with a yellowish edge and four spots. Carabus 4-notatus Melsh. Catal. Length, male one-fifth-female one-fourth of an inch. Body impunctured and almost destitute of hairs; head black; three basal joints of antennae rufous; trunk rufous, paler beneath; thorax with an obsolete longitudinal impressed line; disk somewhat convex; margin depressed; feet pale; nails pectinated; elytra striated; striae acute, distant; two large subtriangular or subovate spots near the base; two smaller ones near the tip; and outer edge yellow; [14] venter pale yellow or reddish-brown. Var. a. The two basal spots of the elytra wanting. Var.,. Head corrugated. Probably a distinct species. This species varies in the form of the basal spots, which are sometimes elongated or confluent with the margin, and either abbreviated or attaining the base. The posterior spots also occur enlarged, so as to be confluent with the apical margin. It [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 445 strongly resembles Dromius 4-maculatus, but the venter is not black, and the spots of the elytra are differently formed. On flowers, (the blossom of the blackberry, &c.) in May, June, July and August. Not uncommon. The name 4-notatus has already been made use of in this genus; I have therefore been compelled to change it. [The species afterwards described by Dejean as L. anah's is subsequently claimed as this species, and it is certain that varieties A and 0 are so correctly referred: with regard to the type, however, I believe that Say has described L. axillaris Dej., thus confounding these two very distinct species.-LEC.] 5. L. VIRIDIS.-Green, polished, immaculate; antenna, palpi and feet black. Length upwards of one-fifth of an inch. Body impunctured, nearly destitute of hairs; head green, with a few obsolete punctures; antennae black-brown; labrum and palpi blackish; nasus cupreous; trunk green polished, beneath darker; thorax with an impressed line; elytra obsolete; striae distant, acute; outer margin punctured; a single puncture near the inner tip; feet black; nails pectinated; venter blackish-green. Var. a. Dark purplish blue; stria of the elytra indistinct, beneath purple-black; antennae black. Very common on flowers. The thorax and elytra, when examined by a high magnifier, are granulated. 6. L. PLATICOLLIS.-Rufous; elytra black-brown edged with rufous; margin of the thorax depressed. [15] Length nearly two-fifths of an inch. Head dark rufous, tips of the mandibles and eyes black; thorax rufous, impunctured, rather wider than long, widest before the middle, somewhat narrowed behind; hind angles very obtuse; margin depressed; dorsal line slightly impressed; basal lines obsolete; elytra blackish-brown, with a pale rufous edge; strive acute; interstitial lines flat; feet testaceous; venter dusky, blackish towards the tip, and on the tips of the segments. Var. a. A humeral, submarginal, pale rufous, longitudinal spot; disk of the thorax dark rufous, margin pale. Museum of Mr. Peale. 1823.] 446 TRANSACTIONS OF THE This species is perhaps a Dronia, [Dromius.] [Afterwards described as Cymindis complanata Dej.; it belongs to the genus Pinacodera Schaum, Ins. Deutschl. 1, 294.-LEc.] GALERITA Fabr. Anterior tibia emarginate; elytra truncate at tip; palpi securiform; tongue exserted, coriaceous in the middle, membranaceous each side, and pointed at tip; neck distinct; penultimate tarsal joint bilobate. G. AMERICANA.-Black; thorax and feet ferruginous; elytra black-blue. G. americana black; thorax ferruginous; elytra azure. Fab.'Syst. Eleut. 2, p. 214. Latr. Regne Animal. Carabus Janus Fab. Syst. Eleut. 1. 136, 51. Carabus bicolor Drury Ent. 1, tab. 42, fig. 2. Zuphium americanum Lamarck, An. San. Vert., Vol. 4, p. 505. Antennae reddish, filiform, a littlel longer than half the body; head black, advanced; thorax narrow, subcordate, reddish; elytra black or blueish black, striated; beneath black; feet reddish, long. N. Amer. Cab. of M. Gigot d'Orcy, Oliv. 3, p. 63, t. 6, f. 72. Galerita americana Edinb. Encyc. Length three-fourths of an inch. [16] Body with very short dense hairs; head black; front with two indented lines; vertex with an obsolete rufous spot; antennte testaceous; second, third, fourth, and tip of the first joints black; palpi testaceous; thorax and feet ferruginous; elytra black-blue opake; about eight distant, acute, impunctured striae. Very common under stones, &c. in various parts of the United States, and in Florida. Found also by 3Mr. Nuttall on the Missouri. [G. Janus is the name now adopted for this species.-LEC.] ODACANTHA Fabr. Anterior tibiae emarginate; elytra truncated at tip; head attenuated behind; palpi filiform; tongue exserted, coriaceous in the middle, and membranaceous each side. 1. O. PENSYLVANICA.-Black; elytra rufous with punctured striae at the base; marginal spot, sutural spot and tip black. [Vol. II AMERICAN PHILOSOPHICAL SOCIETY. 447 Agra pensylvanica Edinb. Encyc. Drypta pensylvanica Lamarck, An. San. Vert. 4, p. 505. Body with a few distant hairs; head black, destitute of punctures, polished; antenna, four basal joints rufous; thorax black, with excavated punctures each side, which disappear near the tips, a longitudinal impressed line each side above; feet pale testaceous; knees dusky or black; tarsi, penultimate joint entire; elytra rufous, striate with punctures which are obsolete behind the middle; a large, common, longitudinally oblong-oval black spot on the middle, and a common, transverse, terminal larger one, which is connected by the black hind [17] margin with a spot on the middle of the margin, which is also generally connected with the common middle one; venter glabrous, black, often with a slight testaceous shade before. Not uncommon beneath stones, &c. Found also by Mr. T. Nuttall on the Missouri. It has been referred to the genus Agra, but the palpi are decidedly those of Odacantha as described by M. Latreille. [Belongs to Casnonia.-LEC.] 2. 0. DORSALIS.-Head black; thorax rufous; elytra testaceous; suture black. Length three-tenths of an inch. 0. dorsalis Fabr. Syst. Eleut. 1, p. 239. Head black; clypeus, labrum, mouth, and antennae rufous. Thorax cylindrical, somewhat contracted before the base, punctured; punctures numerous, minute, sparse or wanting on the disk; a longitudinal dorsal impressed line, and an obsolete, dilated, dusky vitta on each side; elytra yellowish-white, striate; striae regularly and distinctly punctured; a common blackish sutural line, dilated before the tip; pectus pale rufous; feet testaceous, tarsi, penultimate joint bilobate; venter blackish. Inhabits the Southern States. This ought unqestionably to form a distinct genus from that of the preceding species. [Belongs to Leptotrachelus.-LEc.] 1823.] 448 TRANSACTIONS OF THE SCARITES Fab. Anterior tibia emarginate and crenate; elytra entire; antennae short, third and fourth joints moniliform, subequal; labrum short, dentated; mandibles elongated, dentate; palpi filiform; tongue dilated, very short, emarginate at tip; thorax rounded behind; body subcylindrical. [18] S. SUBTERRANEUS.-Black, immaculate; head bisulcate before; elytra striated; feet, second pair, with two permanent spines on the tibiae. Length about nine-tenths of an inch. Black; anterior feet digitated; head sulcated before; elytra striated; striae smooth. Fabr. Syst. Eleut. I., p. 124. Carabus interruptus Fuess. Arch. 161, t. 29, f. 4. Black; head with two longitudinal impressions; elytra striated. Oliv. 3, p. 8, pi. 1, fig. 10. Head with two indented parallel lines before, half the length of the head; mandibles profoundly canaliculate above, teeth above striated; antennae attaining the base of the anterior feet, ferruginous, darker at base; labium subcarinate on the middle, with a double impression at base; gula with an impressed line which is furcate before. Trunk somewhat scabrous each side beneath; thorax, a longitudinal impressed line and a transverse anterior one; posterior edge emarginate; feet, second pair, armed with two permanent prominent spines, on the outer edge below the middle, of which the inferior one is larger; elytra distinctly and rather strongly striated; striae impunctured; margin scabrous; epipleura glabrous; humerus carinated before, carina terminating abruptly in an angle. Very common in almost every part of North America. PASIMACHUS Bonell. Latr. Anterior tibia emarginate and crenate; elytra entire; antennae short, third and fourth joints not moniliform; labrum dentated; mandibles strongly dentate; palpi filiform; tongue dilated, very short, and emarginate; thorax subcordate, truncate behind; body dilated, depressed. [19] 1823.] AMERICAN PHILOSOPHICAL SOCIETY. 449 1. P. DEPRESSUS black, glabrous; thorax and elytra margined with purple; elytra perfectly smooth. Length eleven-tenths of an inch. Carabus depressus Melsh. Catal. Scarites depressus, thorax subquadrate, black; elytra glabrous. Fabr. Syst. Eleut., p. 123. Scarites depressus, antennap black, ob scure at tip; head with two impressed lines before; thorax with a longitudinal impressed line; borders sometimes black-blue; tarsi black brown. Oliv. 3, No. 36, p. 5, t, 2, f. 15. Body glabrous, black, impunctured; head transverse quadrate, with two indented longitudinal lines more than half its length; antennae black-brownish at tip; first joint black; labrum unequal; mandibles as long as the head, strongly dentate in the middle; tooth in the left one double; thorax with an impressed line and two indentations near the base; exterior margin purple; excurved near the base; elytra glabrous, perfectly smooth; outer margin purple, with a line of elevated granules; tarsi black-brown. Var. a. Less dilated; margins blue; elytra smooth, with a slight appearance of lines; sternum striated at tip. From the Missouri. Cabinet of Nuttall. This fine large insect is of frequent occurrence in the United States beneath old logs, stones, &c., and is very probably the same as the depressus of Cayenne; to which country authors have referred this species. [Var. a is a distinct species, afterwards described by me as P. elongatus.-LEC.] 2. P. SUBSULCATUS.-Black, glabrous; thorax and elytra margined with bluish purple; elytra with obsolete lines. Length four-fifths of an inch. Body black, impunctured; [20] head impressed, frontal lines profound; antennae with ferruginous hairs toward the tip; thorax margined with blue-purple, slightly contracted behind; edge near the posterior angles slightly excurved; dorsal and basal lines very distinct; elytra with broad shallow sulcations; with (in some parts) obsolete rudiments of punctures; interstitial lines slightly elevated, 1823.] 29 450 TRANSACTIONS OF THE convex, obtuse; margin blued-purple, with a regular series of minute, elevated, ocellate granules. I found several specimens of this insect in Georgia and Florida. It is sufficiently distinct from the preceding; being smaller, more of an oval form, the thorax less contracted at the base, and the elytra subsulcate; the lateral edge also is excurved at the base, which character distinguishes it at once from the marginatus of Fabr. and the sublevis of Palisot. IHow closely it may correspond with the sulcatus of Macleay I am unable to determine, not having yet seen his work. I have to regret the circumstance of my not having it in my power to refer to M. Palisot de Beauvois's splendid work on the insects of Africa and America. The seventh number only, belonging to the library of the Philadelphia Museum, has yet met my eye; although I have made several attempts to procure an entire copy of the work from Paris. CLIVINA Latr. Anterior tibia emarginate and crcnate; elytra entire; labrum entire; mandibles with obsolete teeth; tongue prominent, membranaceous each side; thorax rounded. 1. C. BIPUSTULATA.-Black;thorax impunctured; elytra with punctured striae, and a large obscure rufous spot near the tip and at the base of each. Length three-tenths of an inch. [21 Scarites bipustulatus? black; elytra striated; a large ferruginous spot behind. Fabr. 1. p. 125. Scarites bipustulatus, Melsh. Catal. Scarites 4-maculatus Palisot de Beauvois. Body blackish; beneath piceous: head somewhat unequal before; antennae and palpi reddish-brown; thorax black, impunctured; a longitudinal impressed line joining a transverse angulated one before; lateral carinated edge abbreviated and recurved at the tip; elytra brown-black, strongly striated; striei nearly equal to the intermediate lines and punctured, punctures excavated; a large obsolete spot at the base, and a large and more distinct spot near the tips of each, rufous; epipleura with large and profound punctures at base. [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 451 A large species by no means common. I think it highly probable that the 4-maculatus of Palisot is no other than this insect; if so, the spots of the elytra, and especially those of the base, in his figure, are by far too distinct; indeed, the former are always obsolete and sometimes not at all visible. 2. C. VIRIDIS.-Dark green, beneath blackish; elytra punctured, cupreous on the disk, edge bluish; feet testaceous. Length one-fourth of an inch. Scarites viridis Melsh. Catal, Body somewhat hairy; head equal, dark cupreous green; antenna and mouth rufous; mandibles black at tip; trunk beneath reddish-black; thorax cupreous green, somewhat hairy; lateral carinated edge abbreviated, very oblique, rectilinear: a dorsal impressed line, and anterior, transverse, angulated one; elytra dark cupreous tinged with green, hairy; stria obsolete, lines of distant punctures obsolete behind, margin greenish, edge blue, an impressed [22] line near the suture excurved at its base near the suture; feet testaceous. [Belongs to Ardistomis Putz., afterwards described by Dejeaa as Clivina rostrata.-LEC.] 3. C. LINEOLATA.-Blackish; head with several elevated lines; thorax with three impressed ones; elytra striate. Length one-fifth of an inch. Head with several elevated lines, of which the two interior are largest, forming a groove between them, and continued and connivent upon the labrum; behind the elevated lines punctured thorax three impressed longitudinal lines; intermediate one attaining the anterior transverse angulated one, lateral ones atbreviated near the anterior margin; lateral edge continued and projecting into a slight angle behind the middle; elytra blackbrown or greenish, strim punctured, profound, and equal to tbh} intermediate lines; feet testaceous. Readily distinguishable from the preceding ones by the elvated frontal lines as well as by the impressed line of the thorax, [Belongs to Schizogeniius Putzeys, and described by him as. sulcifrons. — LEC.] 1823.] 452 TRANSACTIONS OF THE 4. C. PALLIDA.-Pale yellowish; thorax depressed, truncate before, lateral edge minutely angulated behind the middle. Length one-fifth of an inch. Body pale, yellowish, immaculate; head sulcated each side before; thorax little elevated, with a longitudinal impressed line, subquadrate, truncate the entire width before, rounded behind; lateral edge attaining the base, with a slightly projecting angle behind the middle, above which is a small puncture; elytra strongly striate-punctured; a marginal series of short transverse lines, forming quadrate intervals. [23] Found on Chinquoteague Island, coast of Virginia, under yellow pine bark. [This is perhaps C. rufescens Dej.; if it is not, I do not know the species.-LEc.] 5. C. SPHiRICOLLIS.-Thorax globose, with an impressed line; elytra with punctured distant striae. Length one-fifth of an inch. Body impunctured, with a few scattered hairs, beneath black;,head black, longitudinally indented each side; mouth and antennae rufous; thorax purple black, rounded before and behind; lateral edge obsolete near the base, more distinct before, and destitute of any angle behind; an impressed dorsal line; elytra reddish-brown or bronzed, with punctured striae; strim distant; feet dark rufous; venter black. Differs from the succeeding species, in being larger and in having the strive more distant from each other, or, in other words, less dilated. This and the two following species belong to the genus Dischyrius of Bonelli. 6. C. GLOBULOSA.-Black; mouth, antennae, and feet rufous; elytra with punctured obtuse strime. Length from one-tenth to five-fortieths of an inch. Scarites globulosus Melsh. Catal. Head black, longitudinally indented on each side; mouth and antenna rufous; neck beneath rufous; trunk beneath black, tinged each side with rufous thorax purple-black, globose, rounded before and behind; lateral edge obsolete near the base, more [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 453 distinct before, and destitute of a projecting angle behind; an impressed dorsal line; elytra black, striate-punctured; punctures equal in length to the intermediate spaces and nearly equal in breadth to the interstitial lines: [24] feet rufous; venter black. This resembles Scarites gibbus, of which no description has been given, sufficiently characteristic, to enable us to judge of their differences. It may not be improper to observe here, that the same figure of Fuess. Arch. the 17th of plate 29, has been referred to, both for the S.gibbus and Carabus?globator; it is probable therefore that they are one species, particularly as Herbst calls it globator, and has the S. gibbus of Fabr., as a synonym. 7. C. PALLIPENNIS.-Reddish-brown, beneath black; elytra pale yellowish. Length three-twentieths of an inch. Body impunctured, beneath black, sides reddish-brown; head reddish brown; antennae and mouth paler; thorax globose, somewhat truncated before, rounded behind, color of the head, a longitudinal impressed line, lateral edge obsolete behind; elytra pale yellow or whitish, striated; striae distant, with obsolete punctures; an obsolete blackish oblique spot at base, another at tip, and a still less distinct one behind the middle; feet rufous; venter testaceous black, and (like the trunk) margined with rufous. Found at Egg Harbor, coast of Virginia and Florida, and is common. MORIO Latr. Anterior tibiae emarginate; elytra entire; palpi filiform: antennae moniliform, joints subequal; tongue prominent, truncate at tip, and membranaceous each side; mandibles acute. [251 M. GEORGIAE.-Deep black above, beneath piceous-black; nasus with four elevated lines. Length nearly three-fifths of an inch. Scarites Georgia, piceous blackish; thorax subcordate; elytra canaliculate, striae suberenate, those of the margin dentate. Palisot de Beauvois, vol. 1, No. 7, pl. 15, f. 5. Body elongated, black, immaculate; head, an elevated line and groove over the eyes and base of the antenna, two indented 1823.] 4.,54 ~ TRANSACTIONS OF THE frontal lines; nasus, four elevated longitudinal lines; antennae ferruginous hairs at tip, basal joint piceous; labrum piceousblack, emarginated at tip; mandibles canaliculate on exterior base; thorax glabrous, narrower behind; angles acute; a strongly impressed dorsal line, and an abbreviated indented one each side at hind angles; exterior margin with six or eight hairs; a slight emarginure before the hind angles; no abbreviated stria near the scutel; elytra striate; stria impunctured, slightly crenate, marginal one more conspicuously so; marginal interstitial line ocellately punctured from base to tip; humeral angles slightly acute. I found two specimens under the bark of a decaying tree, in South Carolina; I have not met with any in this State. [Subsequently described by Latreille as Harpalus monilicornis.-LEC.] HARPALUS Latr. Anterior tibie emarginate; four anterior tarsi dilated in the male; elytra entire; antenne filiform, joints subcylindical; labrum subquadrate, entire, or very slightly emarginate; palpi filiform; tongue exserted, cylindrical and coriaceous in the middle, and membranaceous each side, tip truncate, unarmed; neck none. [26] 1. H. CALIGINOSUS.-Black; antennm, palpi, tarsi, and anterior coxe ferruginous-brown. Length one inch, breadth two-fifths nearly. Apterous; thorax square, black-obscure; elytra striate; antenns testaceous. Inhabits North America. Fabr. Syst. Eleut. 1, p. 188. Antenna and palpi ferruginous-brown; head smooth with two slightly impressed points before; thorax broad, smooth; scutel small, triangular; body black thighs with a range of small impressed points. Oliv. 3, 35, pi. 6, f. 64, and p1. 7, f. 81. Carabus politus Melsh. Catal. Head glabrous; antenna, palpi, and edge of the labrum ferruginous-brown; an indented puncture each side on the front; labrum slightly emarginate at tip; labium unarmed in the sinus; trunk beneath punctured; thorax with numerous minute punctures, longitudinal line obsolete, area of the hind angles depressed and confluently punctured, posterior angles acute; tarsi and [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 455 eoxae of the two anterior pairs of feet ferruginous-brown; elytra striate; strip impunctured; margin opake, with numerous minute punctures and a few larger ones; venter black, rarely piceous. The largest species of the genus in this country; when irritated it diffuses a very pungent vinegar-like odor. If the species described by Fabricius is in reality apterous, as he supposes it to be, this insect is a distinct species, and the name given by Mr. Melsheimer will be retained. It is very common. [Referred to Sclenophoruts and Pangus, which, however, are more properly united with Harpalus.-LEC.] 2. H. BIoLoR?-~Black; beneath deep piceous: antenna, palpi, and feet testaceous. Length, male less, female more than three-fifths of an inch. [27] Winged; body above black, beneath ferruginous. Inhabits North America. Mus. D. Lewin. Fabr. S. Eleut. 1, p. 195. Resembles C. ruficornis; head black; thorax almost square, with a longitudinal line impressed in the middle, and two impressions posterior; elytra black, striated; body beneath brown, more or less clear. Cab. of M. Bosc. Oliv. 3, p. 57, tab. 11, f. 92, b. Length seven-tenths of an inch. Carabus ostraceicornis Melsh. Catal. Head black; antennae and mouth rufo-testaceous; gula piceous; thorax glabrous on the disk; a dorsal impressed line; area of the hind angles depressed and confluently punctured, posterior angles rounded; elytra striate; striae impunctured, margin with numerous punctures; pectus and postpectus piceous-black, piceous on the disk, with obsolete punctures; feet testaceous, pale; venter piceous-black; tail paler. A very common insect under stones, &c. It does not corres. pond with the description of bicolor of authors, but I do not know what other insect they allude to. Mr. Marsham describes this insect as an inhabitant of Great Britain. [I consider this as H. pensylvanicus Degeer; it also appears to be H. faunus Dej.-LEC.] 3. H. ERRATICUS.-Reddish-brown, beneath testaceous; elytra fuscous; thorax a little contracted at base. Length three-fifths of an inch nearly. 1823.] 456 TRANSACTIONS OF THE Body glabrous, reddish-brown, beneath testaceous; head not darker than the thorax; antennae fuscous towards the tip; thorax broad as the elytra, gradually contracted behind, marginal groove somewhat dilated, dorsal and basal lines distinct, continued to the base, anterior transverse line widely curved, base not wider than the tip, each side obsoletely punctured, basal edge rectilinear, lateral angles obtuse, slightly rounded; elytra darker than the thorax, striate, striae impunctured, interstitial lines convex; [28] feet pale testaceous. It is very probable that this species may prove to be the II. pensylvanicus, instead of the following one, as the thorax, in being narrowed behind, agrees with the figure Olivier has given of that insect. [Incorrectly described by Olivier as H. pensylvanicus.-LEC.] 4. H. PENSYLVANICUS.-Reddish-brown; head darker, beneath testaceous; thorax punctured each side at base. Length three-fifths of an inch. Reddish-brown; head dusky; shells striate; body beneath, antennae and feet testaceous. Inhabits Pennsylvania. Turt. p. 470. Degeer 4, t. 17, f. 22. Head brown-testaceous, obscure; thorax brown-testaceous, nearly as broad as elytra, with a somewhat impressed line; elytra striated, browntestaceous: body beneath and feet testaceous. Cab. of M. Banks. Oliv. 3, p. 72, t. 8, f. 92. Head dusky reddish-brown; labrum darker, tip, excepting the central portion, depressed and hairy; mandibles black at tip; antennae testaceous, paler at base; pectus and postpectus testaceous; thorax reddish-brown, as broad as the elytra, transversely quadrate, angles rounded, a dorsal slightly impressed line, base each side impressed and confluently punctured; elytra striate, striae imnpunctured; interstitial marginal lines obsoletely punctured, exterior one with a few larger subocellate punctures; feet pale testaceous; venter pale testaceous. [I have named this species II. compar. Dejean describes it as H. bicolor. The older figures and descriptions of De Geer and others seem to lead to the conclusion that IT. pensylvanicus and bicolor are the same species, and that the names belong rather to the one above described as H. bicolor. For this reason I have [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 457 considered it necessary to propose a new name for this very common insect.-LEc.] 5. H. FAUNUS.D-ark reddish-brown; antennae, palpi and feet paler; thorax punctured behind. Length half an inch. Carabus faunus Melsh. Catal. Body reddish-brown obscure, beneath rather pale; head, basal suture distinct; antennae and palpi pale testaceous; thorax quadrate, hardly narrowed before or arquated at [ 29] the sides, hind angles rounded, dorsal line faintly impressed, basal lines dilated, and with the hind margin conspicuously punctured, lateral margin depressed, punctured; elytra striate, strive with distant minute punctures, punctures of the marginal line not ocellate; feet pale testaceous. Of this insect I have seen but two specimens; one of which was sent me by my friend Dr. J. F. Melsheimer of Hanover. [This was subsequently described as H. badius Dej.-LEC.] 6. H. HERBIVAGUS.-~Deep black-brown, beneath piceousblack; labrum piceous-black; thoracic angles rounded; feet reddish-brown. Length seven-twentieths of an inch. Head black; antennae and palpi testaceous; thorax, impressed line obsolete, lateral basal lines very distinct, margin somewhat depressed, posterior angles rounded, not depressed or punctured above; elytra, striae impunctured, tip obtusely rounded, marginal punctures continued, edge ferruginous; feet reddish-brown. Not uncommon. Very much resembles the next, but differs from it by the more obtuse termination of the body, &c. This may possibly be the H. dubius of Palisot, but his description is not sufficiently detailed to enable us to determine satisfactorily. 7. H. SIMILIS.-Blackish, beneath piceous-black; elytra greenish or cupreous; labrum ferruginous; posterior thoracic angles subacute; feet pale testaceous. Length seven-twentieths of an inch. Head purple-black; antennae brown, base and palpi testaceous; labrum ferruginous; thorax purple-black, hind angles subacute and with the [30] margin slightly depressed, impunctured, 1823.] 458 TRANSACTIONS OF THE dorsal line obsolete, basal lines subimpressed; elytra dark green or cupreous; striae impunctured, edge ferruginous, tip acutely rounded; feet pale testaceous. I collected this species in North Carolina, where it appears to be rather common. It is distinguishable from the preceding only by immediate comparison: the tips of the elytra when taken together are more acute, the labrum ferruginous, hind thoracic angles more acute, feet much paler, and the thorax more distinctly transverse. [I consider this as probably the species subsequently described by Dejean as H. agilis, in which case it belongs to Eurytrichus Lee. It may however be Gynancdrotarsus latrpaloides Ferte, an insect from Texas, unknown to me.-LEC.] 8. H. vuLPECULuTS.-Rufous; elytra brownish, impunctured; posterior thoracic angles rectangular. Length nearly two-fifths of an inch. Body glabrous, beneath obsoletely punctured; head with the mandibles black at tip; thorax a little contracted behind, base each side depressed and punctured, dorsal line obsolete, lateral angles rectangular, basal edge rectilinear; scutel dark rufous; elytra blackish-brown, strive profound, impunctured, interstitial lines convex, impunctured; pectus and postpectus obsoletely punctured; feet paler. This, at first view, resembles Feronia interstitialis. I have but a single specimen, which is a female. [Subsequently described as H. nigripennis Dej.; belongs to Bradycellus.-LEC.] 9. H. IRIPENNIS.-Black; elytra black-blue iridescent; feet testaceous. Length one-fourth of an inch. Body black, beneath dark piceous; antennae, labrum, mouth, and feet rufo-testaceous, the latter paler; thorax somewhat wider than long, widest in the middle, hardly narrower at base than at tip; lateral edge piceous, [31] almost regularly arquated; angles obtusely rounded; basal edge rectilinear; dorsal and basal lines obsolete; base with numerous slight punctures; elytra blackish, with blue and iridescent reflexions. [Afterwards described by me as Selenophorus varicolor, having [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 459 falsely applied the present name to a much larger species, which must therefore now be called II. (S.) opalinus.-LEC.] 10. H. VIRIDIS.-Green, beneath black; feet rufous; thorax punctured; elytra with minute hairs. Length two-fifths of an inch. Head tinged with bronze; antennae and palpi rufous; labrum piceous; thorax before and at base slightly bronzed; punctures numerous, obsolete on the anterior disk; elytra slightly tinged with brassy, with acute, impunctured striae, and numerous short hairs; interstitial lines flat; feet rufous; bears some resemblance to Feronia lucublandus. [Previously described as I. viridixneus Beauv. and subsequently as H. assimilis Dej.-LEc.] 11. H. IIYLAcIS.-Black; labrum, mouth, and feet testaceous; abdomen piceous; base of the thorax narrowed, angles obtuse. Length three-tenths of an inch. Body black, beneath piceous; labrum, mandibles, excepting at tip, palpi, three basal joints of the antennae, and feet rufo-testaceous; antenna3 dusky. Thorax of equal diameters, narrower at base than the elytra, broadest in the middle; lateral edge regularly arquated; angles very obtuse, posterior edge rectilinear; a longitudinal, slightly impressed, continuous line; basal lines very distinct. Elytra with a very slight greenish shade; basal joint of the anterior and intermediate tarsi dilated and granulated beneath, the remaining joints hardly dilated. The first or basal joint of the anterior and intermediate [32] tarsi only is dilated, and it is granulated beneath as in aemnus, and of course does not, strictly speaking, belong to this genus. The baltimoriensis, carbonarius, agricolus, cenus, and rusticus have also granulations, or rather close set hairs on the dilated tarsi of the male. On account of this distinctive character, I should have referred them all to that division of Feronia in which M. Latreille places Epomis, &c., did not that author expressly state that insects of that division ought to have the two anterior tarsi only of the male dilated. [Subsequently described as Gynandropus americanus Dej.LEC.] 1823.] 460 TRANSACTIONS OF THE 12. H. RUSTICUS.-Deep black-brown; base of the antenna, mouth beneath and palpi, and posterior thoracic angles reddishbrown; glabrous beneath. Length from two-fifths to half an inch. Carabus rusticus Melsh. Catal. Antennae brown, two basal joints reddish-brown; labrum black; maxillae and palpi reddish-brown; thorax glabrous, a dorsal impressed line, and two abbreviated ones at base; margin not depressed, but continuing the general curve to the edge; hind angles obsoletely reddish-brown; elytra, striae impunctured; second, fourth, and sixth interstitial lines punctured near the tip, marginal one with ocellate punctures not interrupted in the middle; pectus and postpectus not hairy. Var. a. Elytra reddish-brown. Very similar to H. carbonarius and equally common; but is readily distinguishable by the color of the thoracic angles, naked breast, punctures of the interstitial lines, &c. [Belongs to Anisodactylus; A. tristis Dej. is merely a variety. -LEC.] 13. H. CARBONARIUS.-Black; palpi and base of the antenna piceous; sternum and postpectus somewhat hairy. [33] Length nearly eleven-twentieths of an inch. Carabus carbonarius Melsh Catal. Antennae blackish brown, basal joints piceous; palpi piceous at the tips of the joints; vertex with an obsolete piceous spot visible in a particular light; thorax, dorsal line not deeply impressed; exterior and posterior lateral margin depressed and somewhat rugose; basal lines not definite; base not narrowed; elytra striae not impunctured, punctures on the marginal interstitial line few and hardly ocellate, sixth interstitial line punctured near the tip; sternum a little hairy from the head to the tip; postpectus somewhat hairy on the disk; venter, first segment hairy beneath. A very common species. The hairs beneath are small, and require the aid of the microscope to be discovered. [Afterwards described as Anisodactylus luctuosus Dej.-LEc.] [Vol. II AMERICAN PHILOSOPHICAL SOCIETY. 461 15. H. AGRICOLUS [AGRICOLA].-Black; palpi and antennae piceous, the latter paler at base; sternum and postpectus glabrous. Length from nine-twentieths to one-half of an inch. Antennae dusky piceous, basal joint light piceous; palpi piceous, paler at tip; vertex with an obsolete, piceous spot; visible in a particular light; thorax slightly narrower at base, dorsal line distinctly but not deeply impressed, lateral margin and a little rugose, spaces of the basal lines deeply impressed and densely punctured; elytra, strie profound, impunctured; sixth interstitial line with a single puncture. This species resembles the preceding one, but it has a shorter and more robust form, and the thorax is somewhat narrower at the base than in the middle, which is not the case in carbonarius. It is also common. [H. paradoxus Hald., and Anisodactylus striatus, Lee. appear to be properly referred to this species.-LEc.] 16. H. BALTIMORIENSIS.-Black; elytra reddish-brown, blackish on the disk; feet pale testaceous. [34] Length two-fifths of an inch. Carabus baltimoriensis, Melsh. Catal. Nasus with about three hairy punctures each side at tip antennae black-brown, base, labrum, palpi, and base of the man. dibles pale reddish-brown; thorax black, somewhat narrower behind, posterior angles acute, dorsal line distinct, basal lines dilated, and with the posterior margin conspicuously punctured; scutel blackish; elytra, base, exterior and posterior margins reddish brown, common disk blackish; feet testaceous. Distinguished from all the preceding ones by the thorax being much narrowed behind. [Also an Anisodactylus, and considered as the previously described Carabus St. crucis Fabr.-LEC.] 17. H. CAENUS.-Blackish, slightly tinged with green; palpi and base of the antennae testaceous. Length seven-tenths of an inch. Carabus ccenus Melsh. Catal. Head green-black slightly tinged with cupreous; antennae brown, three basal joints and palpi testaceous; thorax black, very 1823.] 462 TRANSACTIONS OF THE slightly tinged with green, transverse; hind margin punctured as the middle, and equal to the base of the elytra; dorsal and posterior lines distinct, beneath black; elytra striate, striae impunctured, acute, interstitial lines flat; feet testaceous; thighs testaceous black; dilated tarsi granulated beneath. [Also an Anisodacty/lus.-LEc.] FERONIA* Latr. From this genus, as defined by Latreille, in the Regne Animal I have distinguished Abax, Eonomis, Chleenius, and Dicelus, as distinct genera. [34] 1. F. MUSCULIS.-Body oval, piceous; thorax at base as broad as the elytra. Length one-fifth to one-fourth of an inch. Body oval, dark piceous orblackish; beneath piceous; labrum piceous; antenna and palpi rufous; thorax from the middle to the base as broad as the base of the elytra; hind angles subacute not depressed; lateral margin not depressed, but with an elevated line; dorsal and basal lines indistinct; elytra striate, strice indistinctly punctured, lateral interstitial line serrate before and behind on the inner edge; feet rufous or piceous. This species I found common on the eastern shore of Virginia, in October, on the blossoms of the kinks bush. When caught, like very many of the tribe, they diffuse a strong foetid odor. In Florida I took several specimens on the wing in a conflagrated salt marsh. Belongs to the genus Amara of Bonelli. 2. F. BASILLARIS.-Oval, blackish-bronzed, beneath black: feet piceous; thorax punctured each side at base, and as broad as the elytra; palpi blackish. Length three-tenths of an inch. Carabus smaragdulus Melsh. Catal. Body oval, blackish bronzed or purplish black; beneath black; antennae deep brown, three basal joints rufous; palpi black; thorax from the middle to the base as broad as the elytra, numerous distinct punctures each side at base, posterior angles acute, margin not depressed; elytra striate, strie punctured, *This name is also made use of in botany, and ought therefore to be changed. [Vol. Ii. AMERICAN PHILOSOPHICAL SOCIETY. 463 marginal interstitial line serrate on the inner edge, margin tinged with green; feet deep piceous. [36] Closely resembles'imp2ucticollis, but the striae of the elytra and the hind angles of the thorax are punctured. The name smaragdulus having been appropriated to a very different insect, I have substituted that of basillaris. It belongs to the genus Amara of Bonelli. [Afterwards described by Dejean as A mara lucidula.-LEC.] 3. F. IMPUNCTICOLLIS.-Oval, blackish-bronzed, beneath black; thorax impunctured and as broad at base as the elytra palpi blackish. Length three-tenths of an inch. Body oval, slightly attenuated behind, blackish-bronzed or purplish black; antennae brown, three basal joints rufous; palpi black; thorax from the middle to the base as broad as the base of the elytra, base impunctured, hind angles acute, dorsal and basal lines distinct, margin not depressed; elytra somewhat narrowed behind with impunctured striae, lateral interstitial line serrate on the inner edge; feet piceous black. This insect is not uncommon in Pennsylvania; it was also found by Mr. Nuttall on the Missouri. Corresponds with the characters of the genus Amara of Bonelli. 4. F. ANGUSTATA.-Oval, blackish cupreous, beneath black; feet rufous; thorax impunctured, as broad as the elytra; palpi rufous. Length hardly one-fourth of an inch. Body oval, above blackish cupreous, beneath black; antennas and palpi pale rufous; thorax from the middle to the base as broad as the elytra, impunctured, posterior angles acute, margin not depressed, dorsal and basal lines distinct; elytra striate, impunctured, marginal interstitial line serrate on the inner edge; feet rufous. [37] Taken by Mr. Nuttall on the Missouri. Resembles basillaris and impuncticollis, but is much smaller, and differs from the first by being impunctured, and from the last by the color of the antenna, palpi, feet, &c. Belongs to the genus Amara of Bonelli. [Afterwards described as A. indistincta Hald.-LEC.] 1823.] 464 TRANSACTIONS OF THE 5. F. OBESA.-Black, beneath piceous; antennae, mouth and feet rufous. Length more than two-fifths of an inch. Body black; antennae and mouth reddish-brown; nasus and labrum very dark reddish-brown; thorax slightly margined, much punctured at base, dorsal line slightly impressed, basal lines distinct; elytra with strise very distinctly punctured, interstitial lines depressed, beneath piceous; abdomen and feet reddish-brown. A very short and wide species, belonging to the genus Amara of Bonelli. It was found at Harrowgate, the seat of my friend Mr. J. Gilliams. 6. F. LINEOLA.-Pale yellowish-testaceous; elytra each with a black line. Length three-tenths of an inch full. Carabuslineola, winged, ferruginous; elytra with a black line. Fabr. Syst. Eleut. 1, p. 197. Mus. D. Banks. Inhabits North America. Carabus lineola, elytra striate; thorax paler, with two black linear spots. Turt. Carabus lineola, ferrugineous; thorax equal, with two points; elytra with two black lines. Like C. ferriginosus; antenna ferruginous, as long as thorax; head ferruginous; thorax a little narrower than the elytra, ferruginous, with two points black, obscure; elytra ferruginous, striated, a line upon each bifurcated anteriorly; body beneath brown-ferruginous; feet ferruginous. Cab. of M. Banks. Oliv. 3, p. 78, pl. 7, fig. 75. Head testaceous-yellow; antennae subglabrous, and with the palpi paler; a black transverse line on the vertex, and tips of mandibles and eyes black; thorax color of the head, transverse, subquadrate, rather narrower than the elytra, angles rounded, a dorsal impressed line which is somewhat indented before, a black longitudinally rhombic spot each side of the middle, an irregular smaller one each side at base, and a transverse obsolete arquated one before; all beneath and feet paler, anterior ones five-spined on outer edge of the tibiae, two terminal spines approximate; elytra paler than the thorax, each with a black, abbreviated, vitta, furcate before, and an abbreviated, black, obsolete band at base, striate; strive acute, distant, impunctured; margin impunctured. [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 465 Var. a. Thorax rufous, immaculate; head black. This species I might have referred to C. furcatius of Fabr., had he not quoted for lineola a figure of Olivier's which agrees very well with this insect; an agreement to which, when combined with the accompanying description, no doubt can be attached. Is notfurcatus the same insect? I should suppose the species named comma to be also closely allied to it. [Belongs to Agonoderus.-LEc.] 7. F. PALLIPES.-Head black; thorax and elytra pale testaceous, the former black on the disk, and rounded at the posterior angles, the latter with an abbreviated black vitta; beneath black; feet pale. Length, male one-fourth-female three-tenths of an inch. Carabus pallipes, winged, black; thorax rounded; thorax and elytra with a pale margin; feet pale. Fabr. Syst. Eleut. 1, p. 200. Mus. Dr. Hunter. Inhabits North America. Antennae black, pale at base; head black; mouth ferruginous; elytra striate, black, border pale. Turt. Antennae ferruginous, obscure; head black; mouth and palpi ferruginous; thorax [39] black, margined with ferruginous; elytra striated black, border ferruginous pale; body beneath black; feet pale. Cab, Dr. Hunter. Oliv. 3, pl. 9, f. 99. Carolina. Carabus furcatus Melsh. Catal. Body beneath black; head deep black; antennae and palpi ferruginous; thorax pale testaceous; a large black spot occupying the disk, sometimes distinguished into several obsolete lines, a longitudiual impressed abbreviated line; feet pale; anterior ones six-spined on the outer edge of the tibia, two terminal spines approximate; elytra paler than the thorax, striated, impunctured, each with a broad, black, abbreviated vitta, which is separated from the suture by the first elevated line. Var. a. Pale testaceous beneath. Var. f. Elytra with a common black disk, formed by thejunction of the vittae at the suture. Var. -. Thorax immaculate. Very like a lineola, but is a little smaller and more depressed; 1823.] 30 466 TRANSACTIONS OF THE and otherwise sufficiently distinct. I should have been in doubt whether this species or the next was the true pallipes Fabr., had it not been for the specific character " thorax rotundatus" applied by that naturalist to his insect, a character more decidedly applicable to this species. It is not uncommon, and appears to be a general inhabitant of this country. Nuttall found it on the Missouri. [Also an Agonoderus.-LEc.] 8. F. ATRIMEDIA.-Pale rufous; head, disk of the thorax and of the elytra black; beneath black; feet testaceous; posterior thoracic angles acute. Length one-fourth of an inch. Body black beneath; head black; antennae, base rufous; palpi rufous; thorax rufous, with a black disk, edge slightly excurved near the hind angles; hind angles acute; dorsal line distinct; [40] basal lines indefinite, indented; base each side punctured; elytra with impunctured striae and depressed interstitial lines' pale rufous or testaceous with a common black disk, which is dilated behind the middle and attenuated before; feet testaceous. A greater portion of the antennae and feet were wanting in the specimen, but one of the anterior tarsi which was remaining was much more dilated than that of the preceding species. From the Missouri. Nuttall. [A species of Bradycellus.-LEc.] 9. F. LONGICORNIS.-Apterous, dark piceous, beneath paler: antennae rufous; feet testaceous. Length rather more than half an inch. Carabus longicornis Melsh. Catal. Body glabrous, dark piceous, beneath piceous; front longitu. dinally indented each side; antennae rufous, half as long as the body, the joints attenuated towards their bases; labrum truncate, rufous; palpi rufous; thorax contracted behind, edge slightly excurved at the hind angles, anterior transversely indented line profound, dorsal line at base abruptly canaliculate, basal lines dilated, suborbicular, profound, scabrous, extending from near the dorsal line to the angle; elytra, interstitial lines of the disk convex, glabrous, stria obtuse, punctures approximate, trans[Vol. II, AMERICAN PHILOSOPHICAL SOCIETY. 467 verse, extending upon the sides of the striae, sixth and seventh striae obsolete; feet testaceous. This species is not of frequent occurrence; inhabits moist places under stones. It appears to belong to the genus Percus of Bonelli. [Belongs to Patrobus, and afterwards described as P. americanus Dej.-LEc.] 10. F. UNICOLOR.-Apterous, glabrous, black; tips of the antennae [41] brownish; tarsi piceous; strie of the elytra punctured. Length seven-tenths of an inch, Body glabrous, black, impunctured; head, antennse brownish towards the tips, joints attenuated towards the bases; labrum truncate; palpi piceous; thorax transverse, contracted behind rather abruptly, tip of the posterior angles obtusely rounded, sublobate; dorsal line not attaining the base, basal lines indented, excurved to the angles, anterior transverse line obsolete or wanting, lateral edge much rounded, abruptly excurved behind; elytra convex, strise not deeply impressed, punctures longitudinal, abbreviated striae near the suture, obsolete marginal interstitial line serrate with ocellate punctures, third line with a single puncture near the middle; feet black; tibia at tip and tarsi dark piceous. This species is referable to the genus Pterostichus of Bonelli. [I have separated the species having a single dorsal puncture under the generic name Evarthrus. —LE.] 11. F. STYGICA.-Apterous, black, glabrous, impunctured: strie impunctured; basal thoracic lines dilated. Length more than three-fifths of an inch. Carabus stygicus Melsh. Catal. Body black, impunctured, glabrous; antennas rather surpassing the base of the thorax, brownish towards the tips, the joints attenuated towards their bases; palpi rufous; thorax, diameters subequal, gradually a little contracted behind, edge not excurved at the hind angles, hind angles not prominent, rounded, basal lines double, dilated, orbicular, and scabrous, base wider than the petiole; elytra slightly tinged with brown, striae indented, imnpunctured, interstitial line convex, third with a single puncture 1823.] 468 TRANSACTIONS OF THE behind; wings none; [42] feet black; tibiae and tarsi deep piceous. Belongs to the genus Pterostichus of Bonelli. [A variety was afterwards described as F. rugicollis Hald.LEC.] 12. F. MCESTA.-~Apterous, black, glabrous; thorax as broad as the elytra, much contracted behind; elytra very obtusely rounded behind, s-triae impunctured. Length seven-tenths of an inch. Body black, glabrous, impunctured, rounded behind; antenna brownish or ferruginous towards the tips; palpi piceous; thorax before the middle as broad as the base of the elytra, much contracted behind, posterior angles obtusely rounded, dorsal line very distinct, basal ones excavated, slightly punctured and placed at the lateral angles, base not wider than the petiole, basal edge rectilinear; elytra slightly tinged with purplish, very obtusely rounded behind, striae profoundly indented, impunctured, interstitial lines very convex, third with about four distant punctures; postpectus, peduncle punctured each side; feet, thighs robust; tarsi piceous. Is distinguished from stygicus by the very narrow thoracic base, and very obtuse termination of the body. [Subsequently described by Say as F. superciliosa. (Ante, 92;) and more recently by Newman as F. relicta.-LEc.] 13. F. SIGILLATA.-Apterous, black, glabrous; thorax slightly contracted behind, anterior transverse line acute and deeply impressed; elytral striae punctured. Length more than seven-tenths of an inch. Body black, glabrous, impunctured; antennae brownish towards the tip; labrum dark piceous; mandibles obliquely striated above conspicuously; palpi piceous; thorax broadest before the middle, gradually a little contracted behind, dorsal line acute, impressed, continued, anterior transverse line acute, deeply impressed, resembling [43] a suture, area of the basal lines indented, each with two shorter oblique lines, lateral edge slightly curved, not perceptibly excurved near the base, basal angles rounded, base much wider than the petiole; elytra, strie not very deeply impressed, distinctly punctured, abbreviated stria [Vol. II, AMERICAN PHILOSOPHICAL SOCIETY. 469 near the scutel, obsolete, interstitial lines depressed, third one with two distant obsolete punctures behind the middle; wings none; pectus in some lights slightly tinged with green; tarsi piceous. Resembles tartaricus, but is distinguished by the thoracic hind angles being less acute and the elytral stria punctured; from unicolor it is at once distinguished by the less rounded form of the thorax and its less contracted base; from stygicus, to which by form it is more closely allied, it may be readily separated by the punctured striae, &c. Found on Mr. R. Haines's farm, Germantown. It belongs to the genus Pterostihus of Bonelli. [Afterwards described as F. vidua Dej.; belongs to Evarthrus.-LEc.] 14. F. PLACIDA.-Blackish, glabrous; thorax transversely suborbicular, margined; elytra with acute impunctured strive. Length seven-twentieths of an inch. Carabus peltatus Melsh. Catal. Head purple-black slightly tinged with green; antennas blackish, rufous at base; palpi rufous or piceous; thorax a little narrower than the elytra, transversely suborbicular, blackish, slightly tinged with green; margin depressed, edge a little recurved, particularly at the hind angles, which are not exeurved; dorsal line and anterior transverse line impressed, basal lines almost obsolete in the concavity of the lateral base, which is a little rugous; elytra blackish with an obsolete purplish tint; stria not profound, acute, impunctured; interstitial lines very slightly convex; [44] pectus and postpectus black; feet black; tibiae and tarsi piceous; abdomen black. [A Platynus of the division Agonum, and afterwards described as A. morosum Dej.-LEc.] 15. F. TARTARICA.-Entirely black, immaculate, glabrous; striae of the elytra impunctured. Length three-fourths of an inch. Body glabrous, black; head frontal lines distinct; antenne, ferruginous hair towards the tips, joints attenuated towards their bases; labrum truncate; thorax large, transverse, gradually a 1823.] 470 TRANSACTIONS OF THE little contracted behind, base nearly equal to the base of the elytra, dorsal line profoundly and equally impressed, anterior transverse line more profoundly impressed, confluent with the marginal groove at the anterior angles, basal lines strongly impressed, excurved, and distinctly confluent with the marginal groove behind the angles, lateral edge excurved at the hind angles, posterior angles acute; elytra, striae impunctured, interstitial lines very convex, third with three remote punctures, one near the base, one near the middle, and one towards the tip; feet black; tarsi piceous. [This is a species of Lophoglossus Lee., and is most probably the one described by Dejean as Feronia complanata. —LEC.] 16. F. MUTA.-Black; thorax punctured each side at base, elytra with obsoletely punctured strie. Length half an inch. Carabus adoxus Melsh. Catal. Body glabrous, black; antenna ferruginous towards tip, joints attenuated towards their bases; palpi piceous; thorax in the middle as broad as the elytra, gradually a little contracted to the base, where it is very slightly excurved; base somewhat depressed, and distinctly punctured each side, dorsal line distinctly continued to the base; [45] elytra, striae obsoletely punctured, interstitial lines convex, third one with a puncture at the base, one in the middle, and one near the tip; feet black; tibiae and tarsi piceous; postpectus punctured each side. Differs from adoxus, to which it is closely allied, in having less robust antennae, vestiges of punctures in the elytral strie, the thorax more rounded and less excurved at the posterior angles, and the dorsal line not abbreviated behind. [Also described subsequently as Feronia nmorosa Dej., and Omaseus piciconic s Kirby.-LEC.] 17. F. SUBMARGINATA.-Blackish, glabrous, all beneath pieeous; thorax with a depressed margin, the edge reflected, base each side, and elytral stria punctured. Length half an inch. Antennae and palpi deep piceous; labrum truncate, piceous; thorax in the middle as broad as the elytra, base punctured, [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 471 marginal groove dilated, piceous, resembling a narrow depressed margin and reflected edge, dorsal line distinct, lateral edge not excurved near the hind angles, base wider than the petiole, posterior angles prominent and rounded; elytra, striae punctured, interstitial lines convex, third one with a puncture behind the middle, and one near the tip; feet piceous; postpectus punctured each side behind the intermediate feet and at base; venter impunctured. This species very much resembles decentis, but the thorax is more dilated, and the elytra narrower. It may be distinguished by having the postpectus punctured both at base and each side. [Afterwards described by Germar as Pocilus monedula.-LEC.] 18. F. IMPUNCTATA.-Black, glabrous, impunctured; antennas and palpi pale rufous; fest testaceous. Length a little more than two-fifths of an inch. Body black, impunctured, glabrous; [46] antennae slender, extending beyond the humerus, and with the palpi pale rufous; thorax broadest rather before the middle, contracted behind, margin a little depressed behind, the edge somewhat recurved, posterior angles obtusely rounded, base impunctured; elytra profoundly striated, striae impunctured, interstitial lines convex, the third one with two distant punctures; feet testaceous. Resembles submarginatus and decentis, but is entirely destitute of punctures; the form of the thorax also is perfectly distinct. I caught it on Mr. R. Iaines's farm in Germantown. [Belongs to Pristodactyla; described by Dejean as P. americana.-LEC.] 19. F. VENTRALIS.-Black, glabrous, all beneath piceousblack; thorax at base not wider than the pedicel of the postpectus. Length rather more than two-fifths of an inch. Body above black, polished, beneath piceous-black; antennae piceous, with ferruginous hairs towards the tip; labrum deep piceous; palpi piceous; thorax before the middle as broad as the elytra, gradually much contracted behind, base hardly wider than the pedicel, lateral margin not depressed, edge not excurved behind, dorsal line slightly impressed, basal lines distinct, con1823.] 47L2 TRANSACTIONS OF THE spicuously punctured; elytra narrowed behind, striae punctured, interstitial lines hardly convex; pectus impunctured; feet rufotestaceous; postpectus and venter punctured. Very like submarginatus; but the form of the thorax is very different. It was taken in Missouri by Mr. Nuttall. 20. F. ADOXA.-Apterous, black, glabrous, impunctured; strie impunctured; basal thoracic line not dilated. Length half an inch. [47] Carabus adoxus Melsh. Catal. Body black, glabrous, impunctured; antenna robust, the joints attenuated towards their bases, and with the palpi dark rufous; labrum truncate, dark rufous; thorax large, impunctured, gradually contracted behind, edge excurved at the hind angles, dorsal line not attaining the base, basal lines strongly impressed, cutting the base near the angles; pectus impunctured; postpectus punctured; elytra, striae impunctured, interstitial lines convex; feet piceous; abdomen piceous. Corresponds with M. Latreille's definition of the genus Pterostichus of Bonelli. [Afterwards described by Dejean as Feronia tristis.-LEC.] 21. F. GREGARIA.-Dark reddish-brown; limbs and margin of the thorax paler, thorax at base equal to the base of the elytra. Carabus gregarius Melsh. Catal. Length two-fifths of an inch. Body dark chestnut, blackish each side beneath; head dark chestnut; eyes and mandibles at tip black; antenna and palpi reddish-brown, the former half as long as the body; thorax rather longer than broad, impunctured, lateral margin distinct and with the posterior margin paler, the latter rather broader than at tip and equal to the base of the elytra, dorsal and posterior lines indistinct, angles rounded; elytra with impunctured striae, margin paler and distantly punctured, without emargina near the tip, but regularly rounded in that part; epipleura distinctly canaliculate to near the tip; feet color of the antennae, long; venter blackish. Belongs to the genus Calathus of Bonelli and Latreille. [48] [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 473 22. F. TERMINATA.-Deep reddish-brown; elytra darker; antennae and feet testaceous: thorax not contracted behind. Length seven-twentieths of an inch. Carabus terminatus Melsh. Catal. Body dark reddish-brown; eyes blackish; antennae and palpi testaceous, somewhat darker at tips; thorax transverse, with a distinct, depressed margin each side, not narrowed behind, posterior angles subacute, attaining the humeral ones, dorsal line indistinct; elytra somewhat opake, darker than the thorax, strise impunctured, suture and edge paler, marginal punctures distinct, a distinct sinus near the tip; feet testaceous; venter and postpectus blackish each side. This species appertains to the genus Calathus of Bonelli. [A Harpalide of the genus Eurytrichus.-LEC.] 23. F. AUTMNALIS.-Blackish-brown; antennae and feet testaceous, lateral edge not distinctly excurved behind. Length three-tenths of an inch. Carabus autumnalis Melsh. Catal. Body depressed, deep blackish-brown; head black; antenna and mouth yellowish testaceous, the former brownish towards the tip; thorax a little narrower behind, broadest before the middle, margin not depressed, dorsal and basal lines distinct, posterior angles subacute, hardly attaining the humeral angles, lateral edge not distinctly excurved behind; elytra blackish, polished, striae impunctured, edge with a very obtuse sinus near the tip, marginal interstitial line serrate within; feet testaceous. It seems to belong to the genus Calathus of Bonelli. Resembles terminatus, but is smaller, and the thorax is a little narrowed behind, and is destitute of a depressed margin. [Belongs to Bradycellus.-LEC.] [49] 24. F. LIMBATA.-Dark reddish brown; thorax rounded; elytra deeply margined with testaceous; postpectus pedunculated. Length from one-fourth to three-tenths of an inch. Carabus limbatus Melsh. Catal. Body deep reddish-brown; antennm at base, and palpi paler; thorax suborbicular, margin not depressed, edge consisting of a simple elevated line, anterior angles subacute, dorsal line indis1823.] 474 TRANSACTIONS OF THE tinct, basal lines indented; pectus paler; feet testaceous; petiole distinct; elytra with distinctly punctured striae, disk blackbrown to the fifth stria, remaining margin testaceous, marginal interstitial line with a few larger punctures behind, none in the middle. Rather rare. [A Platy/nus of the division Agonum, and afterwards described by Dejean as A. palliatum.-LEc.] 25. F. PARMATA.-Black: thorax rounded; feet testaceous; elytra margined with testaceous; postpectus pedunculated. Length three-tenths of an inch. Carabus parmatus Melsh. Catal. Body black; antennae and palpi rufous; thorax transversely suborbicular, destitute of depressed margin or elevated edge; feet pale rufous: petiole very distinct; elytra striate, impunctured, disk black-brown to the sixth stria, margin pale rufous, marginal interstitial line slightly punctured on the inner edge; venter black. Much resembles F. limbata, but the strie of the elytra are not punctured and the edge of the thorax is destitute of an elevated line. [Belongs to Olisthopus.-LEc.] [50] 26. F. CUPRIPENNIS.-Green, polished; common disk of the elytra cupreous, brilliant. Carabus metallicus Melsh. Catal. Length seven-twentieths of an inch. Head green; antennae, labrum and palpi black; thorax impunctured, green varied with purple, rather narrower than the elytra, regularly curved each side to the bases, posterior angles none, dorsal and basal lines distinct, the latter dilated; elytra cupreous, brilliant, margin green, stria acute, impunctured, interstitial lines flat; pectus and postpectus dark green; feet green; tibia and tarsi, and trochanters piceous. Var. a. Elytra brilliant green slightly tinted with cupreous; head and thorax tinged with purplish. A very beautiful and brilliant insect. The name metallicus [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 475 having been applied to a very different insect, the above is substituted for it. [A Platynus of the division Agonum.-LEc.] 27. F. CONVEXICOLLIS.-Green varied with cupreous, all beneath black; thorax submarginated, punctured behind. Length more than seven-twentieths of an inch. Body beneath black; head green, with slight cupreous reflec tions; labrum purple-black; mandibles black; thorax green, elevated portion cupreous, margin depressed more perceptibly towards the hind angles, breadth greatest in the middle, hardly contracted behind, base as broad as the elytra and punctured; elytra green, slightly varied with cupreous, particularly at the sutural base, strive with indistinct, distant punctures, interstitial lines somewhat convex, third one with three distant punctures behind the middle; postpectus punctured each side; feet black. [51] I have seen but a single specimen, which was deficient in antennae, palpi, and also in tarsi, with the exception of two joints of the second pair; these were not dilated. It was brought from Missouri by Mr. Nuttall. [Belongs to Poecilus.-LEC.] 28. F. HONESTA.-Black; beneath and feet piceous; above impunctured; thoracic lines profoundly indented; lateral edge excurved behind. Length more than three-tenths of an inch. Body black with a piceous shade, beneath piceous; antennae and palpi rufous; labrum piceous; thorax impunctured, broadest before the middle, gradually contracted behind, dorsal and basal lines profoundly indented, lateral edge excurved near the base, basal angles rectangular; elytra piceous-black, deeply striated, strive impunctured, interstitial lines convex, third one with a puncture near the middle; postpectus each side and peduncle punctured; feet piceous; venter punctured each side at base. [Afterwards described by Dejean as Feroniafascidita, and by Laporte as Stomis americana. Overlooking the dorsal puncture, I placed this species, Journ. Acad. Nat. Sc. 2d, ser. 2, 237, in the division of Pterostichus, having no dorsal puncture.-Lec.] 1823.] 476 TRANSACTIONS OF THE 29. F. 8-PUNCTATUS.-Green; elytra with a common cupreous disk, third interstitial line with four distant, large, excavated impressures. Length full three-tenths of an inch. Carabus 8-punctatus Fabr. Syst. Eleut. 1, p. 186. Body beneath dark green; head green slightly varied with cupreous; antennae and palpi black; thorax green, somewhat cupreous on the disk, rounded behind, lateral curve equal, hind angles none, dorsal line distinct, basal ones profoundly impressed; elytra green opake, common disk to the fourth strise cupreous, polished, strise acute, interstitial lines flat, third one with four distant, profoundly excavated, quadrate impressures; [ 52 ] feet piceous. Remarkable by the very conspicuous elytral series of dilated punctures. Mr. Marshal describes this species as a native of Great Britain. [A Platynus of the division Agonum.-LEc.] 30. F. NUTANS.-Green, polished, beneath black; elytra cupreous; feet testaceous at base. Length seven-twentieths of an inch. Head green, beneath black; antennae, labrum, and palpi black; thorax impunctured, green, rather narrower than the elytra, broadest in the middle, regularly arquated each side to the base, posterior angles none, dorsal and basal lines distinct, the latter dilated, orbicular, base not wider than the petiole; elytra dark cupreous slightly tinted with greenish, striae impunctured, interstitial lines nearly flat; pectus and postpectus black; feet piceous; thighs testaceous at base; venter black. Closely approximated to cupripennis, but may be distinguished by the color of the under part of the body, base of the thighs, and elytra. The specimen I bought several years ago in New York. [A Platynus afterwards described as Agonum femoratumI Dej. -LE..] 31. F. CINCTICOLLIS.-Piceous-black, beneath somewhat paler: thorax margined; elytral strive impunctured. Length nine-twentieths of an inch. [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 477 Body black tinged with piceous, impunctured, beneath piceous; antennae and palpi rufous; thorax narrower than the elytra, contracted behind, margined, margin rufous, somewhat recurved, edge excurved, near the posterior angles, which are obtuse; [53] elytra, striae impunctured, acute, seventh one obsolete, interstitial lines slightly convex, third with two or three punctures; pectus and postpectus impunctured; feet piceous. [A Platynus afterwards described as follows: Platynus blandus Germ., Anchomenus corvinus Dej., A. deplanatus Chaud., A. marginalis Hald.-LEC.] 32. F. DECoRA.-Head deep green; thorax rufous; elytra dark cupreous. Length seven twentieths of an inch. Head deep green, purplish at base; antennae and palpi rufous, dusky at tip; labrum and nasus purplish; thorax pale rufous, narrower than the elytra, broadest before the middle, a little contracted behind, hind angles obtuse, dorsal line slightly impressed, basal ones distinct; elytra, disk obscure cupreous to the eighth stria, margin green, interstitial lines somewhat convex, striae impunctured; pectus pale rufous; postpectus black slightly purpurescent, impunctured; feet testaceous; abdomen black, piceous behind. 33. F. DECENTIS [DECENS].-Black, depressed; third interstitial line tripunctate; thorax each side at base depressed and punctured; feet black. Length eleven-twentieths of an inch. Carabus gagathes Melsh. Catal. Body black, depressed, glabrous; antennae piceous-black; palpi dark piceous; thorax narrower than the elytra, slightly contracted behind, margin somewhat depressed behind, edge recurved, posterior edge very slightly excurved, posterior angles not rounded, dorsal line indented, anterior transverse line angularly and deeply indented, base each side excavated and confluently punctured. Elytra., striae with transverse, numerous, lineolar punctures, interstitial lines convex, the third one with three remote, [54] lateral punctures, of which one is obsolete and placed near the base on the exterior side, one near the middle on the anterior side, and one near the tip; feet black; tarsi piceous; postpectus 1823.] 478 TRANSACTIONS OF THE with a few punctures at base each side before the intermediate feet. This species occurs not unfrequently. As Panzer has given the name gagathes to a German insect which is distinct from this species, I have of course adopted a new one. [A Platynus afterwards described as Anchomenus gagates Dej. and A. coracinus Lec.-LEC.] 34. F. EXTENSICOLLIS.-Head and thorax greenish; elytra green or purplish, beneath piceous-black; feet testaceous. Length seven-twentieths of an inch. Carabus extensicollis Melsh. Catal. Head dusky green; antennae and palpi rufous; labrum truncate; thorax narrower than the elytra, longitudinal, immargined, blackish-purple or greenish, gradually contracted behind, slightly excurved at the hind angles, base somewhat scabrous, basal lines dilated, concave, dorsal line distinct; scutel blackish-purple; elytra green or purple, stria impunctured, interstitial lines convex, third one with four or five obsolete remote punctures; feet testaceous. [Also a Platmzus.-LEC.] 35. H. OCHROPEZA.-Blackish; thorax rounded behind; ely" tra with perlaceous reflections; feet testaceous. Length one-fourth of an inch. Carabus ochropezus Melsh. Catal. Body glabrous, blackish, beneath piceous; antennas brown; base and palpi rufous; thorax somewhat rounded, posterior angles very obtusely [55] rounded, dorsal line obsolete, basal lines excavated, base with numerous small punctures, edge dull rufous; elytra dark brown or blackish, with obsolete perlaceous reflections, striae impunctured, interstitial lines depressed, sutural edge and deflected margin rufous or piceous; pectus and postpectus impunctured; feet testaceous. Var. a. Elytra blackish-testaceous, almost destitute of the perlaceous reflections. [Belongs to Stenolophus.-LEC.] 36. F. LUCUBLANDA.-Green or reddish-purple, polished, all beneath black; head and thorax impunctured, margin of the thorax depressed. [Vol. TJ. AMERICAN PHILOSOPHICAL SOCIETY. 479 Length eleven-twentieths of an inch nearly. Carabus lucublandus Melsh. Catal. Body glabrous, green, polished, beneath black; head impunctured; antenna and palpi brown rufous at base, three basal joints of the former with a dusky carina; thorax impunctured, widest in the middle, a very little narrowed behind by a regularly curved edge, base nearly as broad as the elytra, basal angles rectangular, obtuse, lateral margin very distinctly and abruptly depressed, dorsal line acute, lateral ones, two on each side, indented; elytra green or reddish-purple, margin purplish-opake, interstitial lines convex, impunctured, the third with two or three remote punctures, strie purplish within, impunctured; feet blackish-piceous or rufous. Agreeably to M. Latreille's definition of the Pecilus of Bonelli, this insect probably belongs to that genus: the carina of the antennae is not confined to the third joint, but is extended to the second and first, and is very definite and striking; but the character attributed to that genus of " thorax [56] narrowed behind" is not sufficiently obvious in our insect. Wings perfect. The name Poecilia designates a genus in icthyology. 37. F. CHALCITES. —Green, polished, beneath black; feet black; head and thorax impunctured, margin of the thorax not depressed. Length half an inch. Carabus chalcites Melsh. Catal. Body glabrous, green, polished, beneath black; head imp-anctured; antennae brown, rufous at base, third joint with a blackish carina; labrum black: palpi piceous; thorax impunctured, not contracted behind, dorsal line distinct, base as broad as the elytra, basal lines two each side, margin not depressed, basal angles rectangular, acute; scutel green or cupreous; elytra polished, green, slightly tinted with cupreous, margin opake, interstitial lines convex, impunctured, striae within black and with indented lines on each side; feet black; tibiae and tarsi deep piceous. Common. Brought also from the Missouri by Mr. Nuttall. This species belongs to the genus Poecilus of Bonelli. It seems to resemble the Harpalus viridi-seneus of Palisot, but the thorax 1823.3 480 TRANSACTIONS OF THE is less contracted at base, has four basal lines, and the feet are blackish. [Afterwards named P. Sayi by Brulle, in consequence of Germar also describing a Poecilus chalcites, but the name of Say antedates the latter by two years, as will be seen by the note on p. 435.-LEc.] 38. F. CAuDIcALIs.-Winged; black; joints of the antennae attenuated at their bases; thorax with the exterior edge excurved at base; elytra with slightly punctured strie. Length less than half an inch. Body black, glabrous, polished; antenna and palpi piceous; thorax contracted behind, lateral edge excurved near the [57] basal angles, dorsal line very distinct, continued to the base with a much shorter one at the lateral angles, space of the basal angles depressed and punctured, basal lines distinct, not attaining the basal edge; elytra, striae impressed, slightly punctured, interstitial lines convex; pectus and postpectus each side punctured; feet dark piceous. Somewhat allied to F. adoxa, but is winged, the antenne are far less robust, the thorax is smaller, punctured at the basal angles, and slightly punctured in the striae of the elytra. [Afterwards described as Omaseus nigrita Kirby; I consider Feronia luctuosa Dej., as the same, but Baron Chaudair informs me that he refers that name to the species described by me as Pterostichus abjectus. Dr. Harris kindly communicated to me specimens of the present species which have been compared with Say's type.-LEc.] 39. F. INTERSTITIALIS.-Rufous; elytra brownish, punctured, with iridescent reflections; posterior thoracic angles rounded. Length full seven-twentieths of an inch. Head rufous, black at tip; thorax rufous, transverse, quadrate, widest in the middle, edge curving equally, base depressed each side and with numerous punctures, anterior margin punctured, and a few remote punctures on the disk, dorsal line impressed, posterior angles obtusely rounded; elytra blackish-brown with iridescent reflections, striae profound, interstitial lines convex, conspicuously and densely punctured, edge rufous; pectus pale rufous; feet rufo-testaceous; postpectus black; venter rufous. [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 481 It was brought from Missouri by Mr. Nuttall, and is very rare in Pennsylvania. [Belongs to Amphasia Newman, and was described by him as A. fulvicollis; it is also the Harpalus obscuripennis Dej.-LEC.] 40. F. OBSOLETA.-Totally deep black, immaculate, impunctured, glabrous. Length one-fourth of an inch. Body black, glabrous, impunctured; antennae at base deep blackish-piceous; thorax narrower than the elytra, rounded, rather wider before [58] the middle, hind angles slightly projecting, the edge not excurved, base impunctured, dorsal line obsolete, basal line wanting; elytra, striae obsolete or slightly impressed, impunctured; feet black-piceous; tibiae rather lighter. Seems to belong to the genus Argutor. [A Platynus, afterwards described as Agonum luctuosum Dej. -LEC.] 41. F. PUNCTIFORMIS.-Black; thorax rounded behind, basal lines punctiform; elytral striae punctured. Length seven-twentieths of an inch. Body black, glabrous; antenna brown, piceous at base; palpi blackish; thorax, lateral curve regularly rounded, posterior angles very obtusely rounded, dorsal line obsolete, basal lines each in the form of a dilated puncture, base impunctured; elytra, striae slightly punctured, interstitial lines depressed, third one with three remote punctures; pectus and postpectus impunctured: feet black; tibia and tarsi blackish-piceous. Probably referable to the genus Argutor. [Also a Platynus, and subsequently described as Agonum rufipes Dej., and A. foveicolle Chaud.-LEC.] 42. F. RECTA.-Piceous-black; antennae, palpi, and feet rufous; thoracic impressed lines very distinct, posterior angles rounded. Length rather less than three-fifths of an inch. Body piceous-black, glabrous, beneath rather paler; antenna brownish, base and palpi rufous; labrum piceous; thorax as broad as the elytra, edge regularly curved, posterior angles abruptly rounded, base impunctured, dorsal line very distinct, basal. 1823.] 31 482 TRANSACTIONS OF THE lines longitudinally rectilinear, profoundly indented; elytra, striae punctured, interstitial lines convex, in some lights a faint perlaceous gloss; pectus and postpectus impunctured; feet rufous. Resembles Harpalus ochrorpezus, but is decidedly not of [59] that genus. It corresponds with the genus Argutor of Bonelli. [Belongs to Loxandrus Lee., Journ. Acad. Nat. Sci. Phil., 2d ser. 2, 250; afterwards described as Feronia lucidula Dej., Pogonus rectus Say, and Jlegalostylus laticollis Chaud.-LEc.] 43. F. HYPOLITHOS.-Apterous, black, glabrous; feet rufous; strie of the elytra punctured. Length more than eleven-twentieths of an inch. Antennae dark piceous; palpi rufo-piceous; thorax narrowed behind, dorsal line deeply impressed, surface obsoletely transversely wrinkled, basal lines dilated, distinctly indented, angles obtusely rounded, lateral edge regularly arquated; elytra, strive not deeply impressed, irregularly punctured; thighs and coxae rufous; tibiae and tarsi dark rufous. This species seems to belong to the genus Ptcrostichus of Bonelli, and it may be distinguished from those which we have mentioned to be referable to that genus by the color of its feet. [A Platynus afterwards described as P. erythropus Dej. —LEc.] ABAX Bonell. Anterior tibiae emarginate; antennae moniliform; elytra entire. united; wings none; labium with the intermediate tooth obtuse or truncated; thorax large, transversely quadrate, basal angles each with two abbreviated striae; anterior tarsi of the male with three dilated joints. A. CORACINUS.-Black, beneath piceous-black; elytra striate. a line of marginal ocellate punctures. Length three-fifths of an inch. Carabus coracinus Melsh. Catal. Body beneath piceous-black; head black; a deeply impressed, acute, transverse line between the bases of the antennae, equally distinct with the [60] articulation of the labrum; eyes prominent; labrum deep piceous; antenna hairy, brown, piceous and glabrous at base, somewhat shorter than the thorax; thorax black, somewhat transverse-quadrate, anterior and posterior [Vol. IT AMERICAN PHILOSOPHICAL SOCIETY. 483 diameters equal, anterior angles rounded, little prominent, posterior ones rectangular, attaining the outer humeral angles, lateral edge obscure piceous, margin obsoletely purple, a dorsal impressed line and basal abbreviated one each side; elytra blackish faintly tinged with reddish-purple, striated, strime acute, minutely punctured, a marginal line of ocellate punctures, which are more distant in the middle; epipleura reddish-purple. [Afterwards described as Myas cyanescens Dej.-LEc.] EPOMIS Bonell. Latr. Anterior tibia emarginate; two anterior tarsi dilated in the male, and furnished beneath with dense, granuliform papillae; antennae filiform; labrum entire; palpi with the terminal joint dilated, obtriangular. E. TOMENTOSUS.- Dusky cupreous opake; elytra and feet black. Length three-fifths of an inch. Carabus tomentosus Melsh. Catal. Head impunctured, dark cupreous, antenna black, two basal joints rufous; labrum piceous; palpi black; thorax cupreous, with numerous, green, confluent punctures, as broad as the elytra at base, and gradually contracting by a curved line to the head; elytra greenish-black, striate, strise distinctly punctured pectus and postpectus black, punctured; abdomen black. Not uncommon in Pennsylvania. A specimen was brought [61] from the Missouri, by Mr. Nuttall, which varies in being entirely green above. [This is the type of Eurydactylus Ferte, which, however, is not to be separated from Chltnius; the species was subsequently described as Amara luctuosa Germ.-LEC.] CHLENIUS Bonel. Latr. Anterior tibiae emarginate; two anterior tarsi dilated in the male, and furnished beneath with dense, granuliform papillae antennae filiform, joints elongated; labrum entire; palpi filiform. 1. C. SERICEUS.-Green, beneath black; antennae and feet rufous; head punctured. Length about three-fifths of an inch. 1823.] 484 TRANSACTIONS OF THE Carabus sericeus, alatus, ater, capite, thorace, et elytris viridi-nitentibus, antennis pedibusque rufis. Forst. Nov. Sp. Ins. Cent. Oliv. Ency. Meth. Carabus Fosteri Tnrt. Linn. 2, p. 464. Carabus sericeus Melsh. Catal. Body green, beneath black, with very short numerous hairs; head polished, punctured; antenna and palpi pale rufous, the former paler at base; labrum rufous; mandibles ferruginous at base; thorax distinctly transverse, densely punctured, polished, dilated in the middle, posterior lateral edge rectilinear or slightly excurved, dorsal and basal lines very distinct, base rather narrower than the elytra; elytra not wider behind the middle, with numerous minute punctures, striate; striae acute, minutely punctured, interstitial lines flat; feet rufous; pectus and postpeetus punctured; abdomen with minute punctures. Var. a. Elytra purplish. Very closely resembles the next, but differs in the less elongated form of the thorax. Common in the Middle States, and was brought from Missouri by Mr. Nuttall. [62] 2. C. GEsTIvrTs.-Green-eupreous; elytra purple-black; antennse and feet rufous; head punctured. Length seven-tenths of an inch. Carabus amethystinus Melsh. Catal. Body greenish-cupreous, beneath black, with very short numerous hairs; head polished, punctured; antennae and palpi rufous, shaded towards the tips; labrum ferruginous; mandibles blackish; thorax as long or rather longer than broad, dilated in the middle, posterior lateral edge rectilinear, or slightly excurved, densely punctured, polished, dorsal basal lines very distinct, base narrower than the elytra; elytra dark purple, opake, perceptibly a little dilated behind the middle, with very minute, numerous punctures, striate, striae a little obtuse, punctured, interstitial lines depressed, a little convex; pectus and postpectus punctured, feet rufous; abdomen minutely punctured. This cannot be amethystinus of authors, if the figure of that insect by Olivier be correct. [Afterwards described as C. cobaltinus Dej., and a variety as C. congener Lec.-LEc.] [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 485 3. C. LITHOPHILUS.-Green, beneath black; head punctured; feet testaceous; antennae fuscous, paler at base. Length less than seven-twentieths of an inch. Body green, with very short, numerous hairs, beneath black; head punctured; front smooth; antennae fuscous, base and palpi testaceous, the latter dusky at tip; labrum and mandibles piceousblack; thorax wider somewhat behind the middle, transversequadrate, lateral edge regularly and equably curved, posterior angles slightly rounded, surface densely punctured, punctures large, dorsal liae acute, posterior ones dilated; elytra villous minutely punctured, stria punctured, interstitial lines flat [63] pectus and postpectus with dilated glabrous punctures; feet rufotestaceous; venter with villous punctures. Closely allied to sericeus and sestivus, but is much smaller. [Subsequently described as C. viridanus Dej.-LEc.] 4. C. EMARGINATUS.-Green-cupreous; elytra purple-black; antennae and feet rufous; head punctured; labrum deeply emarginated. Length eleven-twentieths of an inch. Body green, tinged with cupreous, with very short numerous hairs; head polished, punctured; antennae and palpi rufous; labrum profoundly and obtusely emarginate, ferruginous; thorax transverse-quadrate, dilated in the middle, polished, densely punctured, lateral edge curved regularly to the hind angles, dorsal and basal lines very distinct, base nearly equal to the base of the elytra; elytra dark purple, opake, with numerous very minute punctures, striae punctured, interstitial lines depressed; pectus and postpectus punctured; feet rufous; abdomen minutely punctured. Very like C. estivus, but is readily distinguished by the curvature of the thoracic edge being regularly continued to the posterior angles, and by the more deeply emarginated labrum. Not uncommon. [Belongs to Anomoglossus Chaud., a genus which differs from Chlenius by the absence of the mentum tooth.-LEC.] 5. C. PUSILLUS.-Green, polished; elytra purple; antennae and feet rufous; head punctured; labrum deeply emarginate. 1823.] 486 TRANSACTIONS OF THE Length less than seven-twentieths of an inch. Body with very short numerous hairs; head green, polished, punctured; antenna and palpi rufous, brownish towards the tips; labrum piceous, deeply emarginate; thorax with large punctures, a little contracted behind, posterior lateral edge somewhat excurved, dorsal line not deeply depressed, basal ones indented; elytra purple, interstitial lines convex, with distinct punctures [64] strie with the punctures not larger than those of the interstitial lines; feet pale rufous. Not a common species. Known by its small size. [Also belongs to Anomoglossus; it was afterwards described by Dejean as C. elegantulus.-LEc.] 6. C. LATICOLLIS. —Dark violaceous; elytra black; antenna and feet rufous; head punctured; thorax at base as broad as the elytra. Length rather more than three-fifths of an inch. Body hairy, deep violaceous glossed with green, beneath black; head punctured; antennae reddish-brown, base and palpi rufous; labrum truncate, ferruginous; thorax densely punctured, transverse-quadrate, narrowed before, base not contracted, as broad as the elytra; elytra with numerous minute punctures, striae with with small punctures, interstitial spaces perfectly flat; feet rufous; abdomen with small punctures. Approximates closely to sestivus and sericeus, but differs in the form of the thorax, which is proportionally larger. Brought from the Missouri by Mr. Nuttall. 7. C. IMPUNCTIFRONS.-Dark green; elytra black; antennae and feet rufous; head impunctured; thorax at base as broad as the elytra. Length three-fifths of an inch. Body dark green, beneath black; elytra black; head green, polished, impunctured; labrum emarginate, ferruginous; thorax obscure green, transverse-quadrate, punctured, punctures minute, base as broad as the elytra; elytra black, punctures numerous, minute, striae with distinct punctures; feet rufous. Distinguished from all the preceding ones by the glabrous front, and small size of the thoracic punctures. Rare. [65] [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 487 8. C. NEMORALIs.-Cupreous-green, beneath black; elytra purple-black; antennae and feet rufous; head impnnctured; thorax at base narrower than the elytra. Length half an inch. Carabus amethystinus Melsh. Catal. Body with very short, numerous hairs, cupreous-green; elytra dark purple, beneath black; head glabrous, polished; labrum ferruginous, truncate; antennae and palpi rufous; thorax broadest in the middle, posterior lateral edge slightly excurved, base narrower than the elytra, punctures numerous, small, impressed lines distinct; scutel not darker than the elytra; elytra deep purple, obscure, with numerous minute punctures and punctured striae, interstitial lines depressed; sternum slightly tinged with green; feet rufous. Is at once distinguished from estivus by the impressed front, and from impunctifrons by having the thorax narrowed behind. Common in Pennsylvania. I found it also in Georgia and Florida. 3. C. SOLITARIUS.-Green, polished, beneath piceous; feet pale; head impunctured; thorax at base narrower than the elytra, subcordate. Length nearly eleven-twentieths of an inch. Body green, polished, beneath piceous-black; head impunctured; antennae brownish, paler at base; labrum truncate, pale ferruginous; thorax dilated before the middle, contracted behind, dorsal lines and base punctured, disk each side impunctured; scutel purplish; elytra green, polished, striae indented, obtuse, punctures distinct, intervals not equal to their length and becoming obsolete towards the tip, interstitial lines convex, with very distinct punctures; [66] feet pale, joints somewhat darker; tail pale. Differs from all the preceding ones in having the lines intervening between the striae convex. It was taken on the Missouri by Mr. Nuttall. 10. C. PENSYLVANICUS.-Green, polished, beneath piceous; elytra blackish; feet rufous; head impunctured; interstitial lines of the elytra somewhat convex. Length not quite half an inch. 1823.] 488 TRANSACTIONS OF THE Carabus pensylvanicus Melsh. Catal. Body green, polished; elytra dark purplish, with an obscure greenish margin; beneath deep piceous; head impunctured; antennae brown, rufous at base; labrum ferruginous, slightly emarginate; thorax dilated in the middle, punctured, somewhat contracted behind, edge slightly excurved near the base; elytra with numerous minute punctures, striae with approximate punctures which are obsolete towards the tip, interstitial lines convex; feet rufous. Resembles nemoralis, but is known by the convex interstitial lines and less profoundly emarginated labrum.[?] Not common. [The description is hardly sufficiently definite to enable this species to be fully determined. I have, however, applied the name to the one afterwards described as C. pubescens Harris, and C. vicinus Dej.-LEC.] DICGELUS* Bonel. Latr. Anterior tibiae emarginate; two anterior tarsi dilated in the male and furnished beneath with dense, granuliform papillae; antennae filiform; labrum profoundly emarginate. [67] 1. D. PURPURATUS.-Blackish; thorax margined with purple; elytra purplish. Length nine-tenths to eleven-tenths of an inch. Carabus purpuratus Melsh. Catal. Diccelus purpuratus, thorace transverse, purpureo irroratus, elytris sulcatis, corpore abbreviato, dilatato. Bonel. Obs. Entom., Vide Mem. de l'Acad. Imper. de Turin. Body beneath black, impunctured; head black; antennae with ferruginous hairs towards the tip; thorax black, tinged with purple, margin purple or purple-blue, depressed lateral edge re* Since the prefatory observations to this essay were printed, I have had the good fortune to find, in the library of this Society, the fifth volume of the Class of Physical and Mathematical Sciences of the Memoirs of the Imperial Academy of Turin. This volume is particularly interesting to me at this time, as it contains a portion of the essay on the Linnaean Carabii by M. Bonelli, entitled "Observations Entomologiques." From this essay I have made a few quotations in this genus. [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 489 flected; elytra blackish glossed with purple, strie profound, impunctured, interstitial lines very convex; beneath. 2. D. VIOLACEUS. [Ante, 1, 51.] [68] 3. D. DILATATUS. [Ante, 1, 53.] 4. D. ELONGATUs.-Black, impunctured, immaculate, strive impunctured. Length three-fifths of an inch. Carabusfurvus Melsh. Catal. Dicalus elongatus, thorace subquadrato, niger, elytris sulcatis, corpore elongato. Bonel. Obs. entom. Antennae gradually becoming ferruginous towards the tip; thorax of nearly equal diameters, contracted before, margins depressed, lateral edge slightly reflected, dorsal line continued to the base, basal depression not distinctly sinuated before, basal lines distinct; elytra black, stria profound, impunctured, interstitial lines very convex; humeral elevated line elongated. 5. D. SCULPTILIS. [Ante, 1, 53.] [.69] 6. D. SPLENDIDUS. [Ante, 1, 52.] PANAGIEUS Latr. Anterior tibiae emarginate; elytra entire; exterior maxillary and labial palpi with the terminal joint subsecuriform; [mentum] tridentate, middle tooth short, obtuse; tongue short; head small; labium much wider at base; neck distinct, abrupt; thorax orbicular; abdomen subquadrate; antennae filiform. 1. P. CRUcIGERUS.-Black, hirsute; elytra with four large fulvous spots. Length nine-twentieths of an inch. Body black, opake, punctured; head with obsolete punctures; antennae with a few rufous hairs towards the tip; thorax transversely suboval, widest behind the middle, punctures numerous, dilated, and distinct, edge abruptly excurved near the posterior angles, which are small, prominent, acute; elytra with obtuse strive, punctures dilated, each elytrum with two large fulvous spots, of which one is near the [70] base, rounded, attaining the margin, and the other near the tip, orbicular and distinct; pectus, postpectus, and abdomen each side at base with dilated punctures. 182s.] 490 TRANSACTIONS OF THE Closely resembles the Crux major of Europe, but is a much larger insect. I found a specimen on the sea beach of Senipuxten, eastern shore of Maryland, which was cast up alive by the waves, the last of September. 2. P. FASCIATUs.-Ferruginous, hirsute, punctured; elytra fulvous, with a black band and tip. Length seven-twentieths of an inch. Head punctured; nasus impunctured, glabrous; antenna fuscous; palpi black; thorax widest behind the middle, convex, punctures numerous, large, lateral edge deeply and widely excavated behind, posterior angles prominent, distinct; elytra fulvous, with a common black band rather behind the middle, contracted on the disk, and dilated at the suture and margin, deflected base and tip black, striae obtuse, punctures large, distinct, transverse; epipleura with a distinct, impressed, punctured stria; pectus and postpectus with dilated punctures; feet black; venter deep. piceous, punctured each side at base. Very distinct from the preceding species, and is a rare insect. CYCHRUS Fabr. Anterior tibire entire; elytra entire, embracing the abdomen; external maxillary and labial palpi dilated, compressed, subsecuriform or obconic; mandibles elongated, bidentate near the tip; labium profoundly emarginate, not wider at base than at tip; labrum elongated, very profoundly emarginate; tongue very small; abdomen robust, convex. [71] 1. C. ELEVATUS.-[Ante 1, 103.] 2. C. UNICOLOR.-[Ante 1, 99.] [72] 3. C. STENOSTOMUS.-[Ante 1, 101.] [73] 4. C. BILOBUS.-[Ante 1, 101.] CALOSOMA Weber. Anterior tibiae entire; elytra entire; exterior maxillary and labial palpi with the terminal joint hardly larger than the preceding joint; mandibles unarmed, robust; labrum transverse, bilobate; labium profoundly emarginate and with a short acute tooth in the middle; antennae, second joint one-third as long as the [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 491 following one; thorax transversely suboval; abdomen subquadrate. 1. C. SCRUTATOR.-Violaceous; thorax with a golden margin; elytra green margined with reddish-cupreous. Length from twenty-three-twentieths to five-fourths of an inch. [ 74] Carabus scrutator Oliv. Ent. No. 35, pl. 3, 32, a. b. Calosonza scrutator Fabr. Syst. Eleut. pars 2, p. 213. Melsh. Catal. and Leach Zool. Misc. Vol. 2, p. 93, pl. 93. Body beneath green varied with golden cupreous; head impunctured, black, with violaceous reflections, orbits above golden; antennae with ferruginous hair towards the tip; beneath green; tooth of the labium very short, hardly prominent; thorax impunctured, blackish-violaceous, with an uninterrupted golden margin, dorsal line abbreviated, obsolete, basal lines none, basal edge subrectilinear, the lateral angles not extending backwards; elytra bright green with a very slight cupreous reflection; striae reticulated by much smaller transverse lines which are more deeply impressed in the striae so as to resembles transverse punctures, striae fifteen, transverse lines very numerous, fourth, eighth, and twelfth interstitial lines each with several distant impressed punctures, exterior margin reddish-cupreous; feet violaceous: venter green, incisures each with a golden cupreous base and lateral spot. Var. a. Head distinctly punctured, disk of the thorax green with a very slight violaceous tint; length nine-tenths of an inch. This species makes a very near approach to the sycophanta of Europe; but, as Dr. Leach observes, it differs from that insect in color, in being less convex, and in having a shorter thorax. 2. C. CALIDUM.-Black; elytral stria reticulated, equal, with a triple row of indented gold dots. Length from nine-tenths to nine-eighths of an inch. C. calidum Fabr. Syst. Eleut. Carabus calidus Melsh. Catal. Head black, with crowded minute confluent punctures; antennae brown towards the tip; [75] thorax black, with crowded, minute, confluent punctures, posterior lateral margin reflected, posterior angles rounded and extending backwards beyond the 1823.] 492 TRANSACTIONS OF THE basal line; elytra black, strie reticulated by smaller transverse lines, which, near the base, are much more deeply impressed, so as almost to granulate the interstitial lines; strise fifteen, transverse lines very numerous, fourth, eighth, and twelfth interstitial lines with several equal, equidistant, dilated orbicular, impressed, golden dots, and a solitary one near the scutel, exterior marginal groove greenish; pectus each side with minute crowded punctures; sternum impunctured; postpectus each side, and each side of the abdomen with rather larger punctures. I was formerly misled respecting this insect by that portion of the specific description of Fabricius which ascribes to it an apterous character. In this error I was corrected by Professor Wiedemann of Kiel, who assures me that Fabricius was mistaken, and that his species is certainly winged. CARABUS Lin. Latr. Anterior tibiae entire; elytra entire; exterior maxillary and labial palpi subtriangular, dilated; mandibles not elongated, robust; labrum short, transverse, bilobate; labium profoundly emarginate and with a central tooth; antenna, second joint half as long as the next; thorax subcordate, emarginate behind; abdomen oval. 1. C. SYLVOSUS.-Apterous, black; thorax and elytra margined with violaceous, the latter with a triple series of excavated punctures. Length rather more than an inch. Carabus si'vosus Melsh. Catal. Body black, glabrous; [76] antennae brownish towards the tips; palpi, terminal joint dilated; thorax margined, margin violaceous, gradually more recurved to the posterior angles, very obtusely rounded, slightly extending backwards beyond the basal line, base depressed and with the lateral margin somewhat scabrous, dorsal line obsolete, basal lines wanting; elytra black, margin violaceous, disk nearly smooth with about thirty striae of minute impressed punctures and three distant series of remote excavated ones. All the species of this genus that I have seen, as well as those of Procrustes, Calosoma, &c., have the tibia of the second pair [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 493 of feet of the male densely ciliated near the external tip, with fulvous hair. 2. C. INTERRIUPTUS.-Apterous, blackish; elytra slightly bronzed; fourth, eighth, and twelfth interstitial lines interrupted; striae concave with impressed punctures and elevated ones. Length nine-tenths of an inch. Carabus granulatus Melsh. Catal. Head black; antennae and palpi deep piceous, the former fuscous towards the tip; thorax black, with numerous, minute, indented punctures, which are obsolete on the disk, dorsal and basal lines conspicuous, margin towards the posterior angles slightly reflected, posterior angles rounded, prominent behind the basal line; elytra black-bronzed, strive with a somewhat lateral series of punctures and numerous elevated ones, interstitial lines fifteen, two of which are more conspicuous, fourth, eighth, and twelfth interrupted, interrupted lines acute behind, a submarginal series of elevated punctures; feet black; venter deep piceous or black. The impressed punctures of the intervening lines of the [77] elytra are sometimes obsolete or wanting. This species does not agree with the description of C. granulatus either as respects the color of the antennae or that of the body. And although it corresponds with the description of tsedatus better than any other insect I have yet seen, yet the differences are so striking as to forbid its being referred to that species. This will be placed beyond a doubt by comparing Olivier's description with the above, and particularly that portion of it relating to the elytra, of which he says that they are " presque lisses ou sans stries bien marquees, avec trois rangees des points enfonces." [Previously described as C. vinctus Weber.-LEC.] 3. C. LIMBATUS.-Apterous, black; margin of the elytra purplish; fourth, eighth, and twelfth interstial lines interrupted. Length four-fifths of an inch. Body black, glabrous; head obsoletely corrugated above the eyes; antennae fuscous at tip; thorax impunctured, rugulous at base; elytra margined with purple, strive with transverse lineolar punctures, interstitial lines elevated, equal, distinct, marginal 1823.] 494 TRANSACTIONS OF THE ones and tips slightly reticulated, fourth, eighth, and twelfth interrupted; pectus impunctured; postpectus each side at base obsoletely punctured; feet black; venter each side obsoletely punctured. This insect very much resembles C. interruptits, but differs in the form of the punctures of the elytra and in having this part margined with purple; the form also is less elongated. Taken by Mr. J. Gilliams in Maryland. [Afterwards described as C. Goryi Dej.-LEc.] 4. C. sERRATUs.-Apterous, black; thorax and elytra margined with obscure violaceous, interstitial lines reticulated, three interrupted ones. Length more than seven-tenths of an inch. [78] Carabus catenatus Melsh. Catal. Body black, glabrous; head smooth, impunctured; antenna fuscous beyond the middle; thorax, exterior margin obscure violaceous, and with the base somewhat scabrous, disk impunctured, dorsal and basal lines obsolete, the latter oblique; elytra margined with obscure violaceous, edge near the base slightly serrate, interstitial lines about fifteen, obtuse and smooth, connected by numerous transverse septec, which are equally prominent and obtuse, not continued, fourth, eighth, and twelfth line dilated, interrupted, obtuse. Postpectus and venter each side punctured. The name catenatus has been applied by Panzer to a species inhabiting Carolina. [Subsequently described as C. lineatopunctatus Pej.-LEc.] NEBRIA Latr. Anterior tibia entire; elytra entire; exterior maxillary and labial palpi with the last joint elongated, subcylindrical, the latter of equal joints; tongue not longer than the labrum, and not tricuspidate at tip; labrum entire; labium profoundly emarginate, and with an emarginate, obtuse, central tooth; mandibles not dilated at base; thorax truncate, cordate; abdomen oval, depressed; antenne filiform. N. PALLIPES.-Black; thorax dilated, very short: feet testaceous. Length nearly half an inch. [Vol. TT. AMERICAN PHILOSOPHICAL SOCIETY. 495 Body black, glabrous, depressed; head with two obsolete piceous spots on the vertex; mouth piceous; palpi paler at base; antennae rufous, base paler; labium elongated, nearly as long as the labrum, bisetous near the tip; thorax much abbreviated, as broad as the elytra, much contracted behind, exterior and posterior margins depressed, [79] lateral edge reflected, dorsal line conspicuous, posterior angles acute; elytra profoundly striated, strise punctured on the sides, interstitial lines convex; pectus and postpectus with obsolete dilated punctures; feet testaceous: venter piceous towards the tip, impunctured. In this species the emargina of the anterior tibia is very small and placed very near to the tip, so as to be undiscoverable but by particular examination. Judging from the generic definition which authors have given, this species must differ from the other species of this genus in the form of the labium, which is elongated, acute, as in Pogonophorus, and has on each side near the tip a long hair or bristle, instead of spines, as in the latter genus; it does not therefore agree with the character given of the labium of Nebria,-" labium subquadrate," "labium short," "nearly quadrate," &c., nor yet with that of Pogonophorus, of which this part is tricuspidate. But as it will not agree with any other than the two genera above mentioned, and as it differs from the latter genus in not having the mandibles dilated at base, nor the maxillary palpi much elongated, I have thought proper to place it with the present genus, to which it seems to have the closest affinity. OMOPHRON Latr. Tongue very short; antennae filiform; maxilla ciliated on the exterior side; body short, nearly hemispherical; thorax trapezoidal, transverse, sinuated, or lobed behind; anterior pair of tibiae slightly emarginate on the inner side. O. LABIATUM.-Blackish; labrum, margin of the thorax and of the elytra whitish: antenna, palpi, and feet testaceous. Length one-fourth of an inch. [80] Scolytes labiatus niger, labio thoracis elytrorumque margine argenteis. Fabr. Syst. Eleut. 1, p. 248. Head blackish, base punctured; eyes large; nasus triangular, 1823.] 496 TRANSACTIONS OF THE piceous, with a yellow hind margin; antennae and palpi testaceous; labrum white somewhat silvery; thorax black-brown, broad as the elytra at base, gradually narrowed before before, basal line sinuated each side and angulated in the middle, punctures obsolete on the disk, dorsal line obsolete, basal lines none, lateral margin white somewhat silvery near the edge, edge black-brown; scutel not perceptible; elytra black-brown, striae thirteen, towards the tip and margin obsolete, punctures distant, impressed only on the lateral pari[et]es of the striae, interstitial lines convex, margin whitish somewhat silvery near the edge, dilated and undulated behind with several punctiform hyaline maculae; pectus and postpectus punctured, piceous; feet testaceous; venter pale piceous impunctured. This specimen I obtained near Great Egg Harbor, New Jersey, on the skirt of a forest. ELAPHRUS Fabr. Antennae hardly longer than the head and thorax, somewhat more robust towards the tip; external maxillary and labial palpi with the ultimate joint subcylindrical, longer and larger than the preceding joint; labium profoundly emarginate; maxillae hardly ciliated on their external side; thorax subcylindrical, somewhat dilated in the middle, unequal, longer than broad; anterior tibiae emarginate on the inner side. E. RIPARIUS?-Dark brownish-green, a little bronzed: elytra with dilated, orbicular, impressed spots, and three elevated studs each side of the suture. Length more than three-tenths of an inch. [81] E. riparius Fabr. Body dark brownish-green, opake, beneath rather paler, polished, glabrous, punctures very numerous, crowded; head slightly corrugated between the eyes; antennae and labrum blackish; mandibles green each side at base, piceous within near the tip; palpi above piceous, beneath paler; gula impunctured; thorax broadest rather before the middle, narrower than the elytra, a transversely indented curved line before the middle, and a longitudinal abbreviated one, lateral edge hardly prominent, slightly excurved behind, posterior angles inconspicuous, base not wider [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 497 than the petiole; elytra equally punctured with about twenty large, dilated, orbicular, impressed, purplish spots, and two or three equidistant, elevated, elongate, subquadrate, impunctured, bronzed spots each side near the suture, the anterior one largest, a few obsolete elevated lines; postpectus green,tinged each side with cupreous; feet green; femora and tibiae piceous at base; venter green, disk impunctured, segments brassy at tip. [Afterwards named E. ruscarius Say, infra.-Lec.] NOTIOPHILUS Dumeril. Antennae not longer than the head and thorax, rather more robust towards the tip; external maxillary and labial palpi with the terminal joint subcylindric, large, and longer than the preceding joint; labium profoundly emarginate; maxilla hardly ciliated on their external side; thorax depressed, transverse, subquadrate; anterior tibia emarginate on their inner side. N. SEMISTRIATUS.-Brownish bronze; front corrugated; elytra with punctured strie and a longitudinal equal space near the suture. Length rather more than one-fifth of an inch. [82] Elaphrus semistriatus Melsh. Catal. Body brownish bronze, glabrous, immaculate, beneath blackish; head with six or eight frontal, longitudinal, elevated lines, abbreviated on the vertex; nasus with several elevated lines at tip, and a transverse interrupted one at base; labrum, a single impressed, longitudinal line; antenna and palpi deep fuscous, paler at base; thorax as broad as the elytra, transverse quadrate, broadest before the middle, slightly contracted to the base, punctures numerous, approximated, obsolete each side of the disk, dorsal line impressed, punctured, basal lines indented, lateral edge slightly curved, posterior angles rectangular; scutel rounded at tip, impunctured; elytra, strie obtuse with large punctures, interstitial lines hardly wider than the stria, a dilated, smooth, polished, longitudinal, continued space separated from the suture by a series of impressed rounded punctures; pectus punctured; postpectus with a few punctures each side; feet black. Var. a. Dark green; tibiae piceous. 1823.] 32 498 TRANSACTIONS OF THE Var. f. Feet rufous; thorax more contracted behind. [Var. A was afterwards recognized as a distinct species, N. porrectus Say, infra.-LEc.] BEMBIDIUM Latr. External maxillary and labial palpi with the penultimate joint largest, dilated; terminal joint abruptly very slender and short; anterior tibiae emarginate on the inner side. 1. B. HONESTUM.-Bronzed, beneath dark bluish-green; antenne, palpi, and feet piceous; thorax much narrower than the elytra, basal line oblique each side. Length one-fourth of an inch. Tachys cereus Melsh. Catal. Head black, very slightly bronzed; palpi piceous, peultimate joint of the exterior ones blackish; [83] thorax black, slightly bronzed, impunctured, narrower than the elytra and contracted a little towards the base, broadest rather before the middle, posterior angles acute, prominent, from tip to tip not equal to the diameter before the middle, dorsal lines distinct, basal lines abbreviated, indented, somewhat dilated, marginal groove uninterrupted at the hind angles, basal edge oblique each side; elytra bronzed, stria impressed, not obsolete near the tip, punctures approximated, interstitial lines flat, third with two punctures on the outer edge, one near the middle, and the other behind; pectus and postpectus impunctured, deep bluish-green; feet piceous; trochanters and base of the thighs paler. Panzer has applied the name which Mr. Melsheimer adopted to a different insect of this genus. [This appears to be the species afterwards described as B. antiquum Dej. —LE.] 2. B. PUNCTATO-STRTATUM. —Blackish, beneath dark green polished, thorax hardly narrower than the elytra, basal line oblique each side. Length from one-fourth to nearly three-tenths of an inch. Body all above black obsoletely bronzed, beneath deep green highly polished; antennae fuscous, basal joint rufous; palpi rufous at base, darker towards the tip; thorax broadest in the middle, narrowed before, somewhat contracted before the poste[Vol. IT. AMERICAN PHILOSOPHICAL SOCIETY. 499 rior angles, breadth from tip to tip of the posterior angles equal to the breadth of the middle, basal edge oblique each side, dorsal line slightly impressed, basal lines indented, conspicuous; elytra, striae impressed, obtuse, not obsolete near the tip, punctures rounded, conspicuous, interstitial lines slightly convex, third one with a dilated indentation near the middle, and another behind; humerus obtusely angled; feet dark rufous. Var. a. Body above bright cupreous; impressed elytral spots green; thighs and tibiae each at tip greenish. [ 84 ] Very similiar to the preceding species, but, independently of color, it may be readily distinguished from it by the much wider thorax and the impressed elytral spots. [Afterwards described as B. stigmaticnum Dej.; B. sigillare Say, infra, is probably the same species.-LEC.] 3. B. LEVIGATUM.-Above green, polished, beneath blackish; elytral striae not impressed, punctured. Length rather more than one-fourth of an inch. Body all above green, polished, beneath blackish, polished, antennae and palpi rufous; thorax impunctured, broadest in the middle, nearly equal to the base of the elytra, contracted behind, posterior angles rectangular, basal line nearly rectilinear, marginal groove interrupted at the posterior angles by an oblique acutely carinated line, dorsal line slightly impressed, basal ones profoundly indented; elytra destitute of impressed strise, punctures rounded, somewhat dilated, obsolete behind the middle, interstitial lines flattened; feet dark rufous; venter slightly piceous on the disk. This species was obtained in Missouri by Mr. Nuttall. [Placed by me as the type of a different genus Hydrium, which I afterwards reunited with Bembidium.-LEC.] 4. B. DORSALIS.-Greenish polished, beneath blackish; elytra testaceous, with two obsolete undulated bands. Length upwards of one-fifth of an inch. Body beneath piceous-black, polished; head green somewhat brassy; front longitudinally convex in the middle; antennae brown, testaceous towards the base; palpi testaceous, darker towards the tip; thorax green slightly tinged with cupreous, 1823.] 500 TRANSACTIONS OF THE marginal groove interrupted at the posterior angles by an oblique carinated line, dorsal line obsolete, basal ones dilated, basal edge oblique each side: elytra whitish-testaceous, strive punctured, profound, not obsolete near the tip, interstitial lines hardly convex, third with a transverse linear impression before and one behind the middle, area of the scutel greenish, two fuscous, obsolete, [85] undulated bands behind the middle, the posterior one less definite; feet whitish-testaceous. Found in Missouri by Mr. Nuttall. 5. B. CONTRACTUM.-Blackish-brown, thorax much contracted behind, base hardly broader than the peduncle, rectilinear. Length one-fifth of an inch. Head black; antenae brown, base rufous; labrum deep piceous; mandibles piceous before the tip; palpi piceous black; thorax black, slightly cupreous, widest rather before the middle, much contracted behind, lateral groove not dilated, posterior angles very small, base excepting the angles, hardly wider than the peduncle, basal line rectilinear; elytra blackish, or dark piceous, slightly glossed with cupreous, with a very indistinct paler posterior margin and tip, strie impressed, obsolete at tip, lateral ones shortest, punctures very distinct, approximated, interstitial lines flat, third with a puncture before and one behind the middle; feet testaceous. The pale hind margin and tip are usually obsolete, and often almost imperceptible; it varies in extending to the base, but is ordinarily in the form of a very indistinct, subterminal, marginal spot, and an apical larger one. 6. B. NIGER.-Purple-black; elytra bronzed, strie obtuse, obsolete at tip; feet rufous. Length more than three-twentieths of an inch. Tachys niger Melsh. Catal. Body beneath piceous-black; head blackish tinted with purple, antennae fuscous; base and palpi rufous; thorax black, slightly purpurescent, broadest rather before [86] the middle, lateral edge slightly excurved near the posterior angles, basal edge slightly oblique each side; elytra dark bronzed, strise obtuse, somewhat canaliculate, obsolete behind, punctures transverse, interstitial lines convex; feet rufous. [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 501 At once distinguishable from the preceding species by its smaller size. 7. B. OPPOSITUM. —Black; elytra fuscous, each with two large remote whitish spots. Length one-eighth of an inch. Tachys 4-guttatus Melsh. Catal. Head black; antennae brown; base and palpi testaceous; thorax black, somewhat pedunculated, wider before the middle, much contracted behind, posterior angles salient, acute, basal edge oblique each side, and, excluding the angles, hardly wider than the peduncle; elytra fuscous or blackish, each with a large, whitish, longitudinally suboval spot attaining the humerus and exterior margin, distant from the suture, and one less than half as large, rounded, placed on the disk behind the middle, striae obsolete, wanting behind, punctures of the striae distinct; feet testaceous. Subject to considerable varieties in size and in depth of coloring of the elytra. The term 4-guttatus of Mr. Melsheimer is preoccupied. [Identical with the European B. 4-maculatum.-LEc.] 8. B. AFFINIS.-Black; elytra each with two large, distant, obsolete, pale spots, and a smaller one on the humerus before. Length one-eighth of an inch. Thorax black, wider before the middle, much contracted behind, posterior angle salient, acute, basal edge oblique [87] each side, and, excluding the angles, hardly wider than the peduncle; elytra blackish, each with obsolete, marginal, pale spots, one placed before the middle not attaining the humerus, one smaller behind the middle attaining the margin, and one smallest before the humerus, striae impressed, wanting at tip, punctures distinct; feet testaceous. Very similar to the preceding, but may be distinguished by the larger anterior spot being placed considerably behind the humerus and by the more profoundly impressed striae. [Afterwards described by Dejean as B. fallax and B. decipiens. -LEC.] 1823.] 502 TRANSACTIONS OF THE 9. B. INORNATUM.-Black; feet piceous; elytral striae obsolete, impunctured. Length one-tenth of an inch. Body deep black, polished; antennae brown; base and palpi rufous; thorax nearly as broad as the elytra, somewhat narrowed behind, lateral edge hardly excurved behind, posterior angles rectangular, basal edge rectilinear; elytra black, dorsal striae obsolete, obtuse, impunctured, lateral striae wanting; feet piceous. Often under the bark of decaying trees. [Belongs to Tachys and was afterwards described as Tachyta picipes Kirby.-LEc.] 10. B. FLAVICAUDUS.-Piceous; elytra with obsolete, impunctured striae and pale at tip. Length three-fortieths of an inch. Head blackish; antennae, labrum, and palpi pale rufous; thorax piceous-black, transverse quadrate, broadest in the middle, not contracted behind, posterior angles rectangular, basal edge rectilinear; elytra blackish, from near the middle to the tips yellowish white, striae impunctured, wanting each side and at tip, interstitial lines convex; feet pale rufous; venter piceous at tip. [88] Var. a. Entirely testaceous. These I found very numerous under the bark of decaying trees. [A species of Tachys.-LEC.] 11. B. PROXIMUS.-Head and thorax piceous; elytra testaceous with a blackish common disk, striae obsolete, impunctured. Length rather more than one-tenth of an inch. Head blackish piceous; antennae rufous; base and palpi pale; labrum rufous; thorax piceous, transversely subquadrate, slightly contracted behind, posterior angles rectangular, base much broader than the pedicel, basal line slightly oblique each side, dorsal line distinct, basal ones indented; elytra testaceous, a common black spot on the middle hardly attaining the margin, region of the scutel dusky, striae very obtuse, obsolete, wanting each side and at tip, impunctured, interstitial lines convex; pectus and postpectus piceous; feet testaceous; venter blackish, paler at tip. [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 503 Approaches the preceding, but, color apart, it may be known by the thorax being more contracted behind. [Also a Tachys.-LEC.] 12. B. LtEvui-.-Piceous; palpi whitish; elytra destitute of stripe. Length one-twentieth of an inch. Body piceous tinctured with rufous; head rather darker; antennae paler at base; palpi whitish; thorax transversely subquadrate, broadest before the middle, hardly narrowed behind, lateral edge not excurved behind, posterior angles slightly obtuse, angular, basal edge nearly rectilinear, dorsal line obsolete, basal ones wanting; elytra impunctured, destitute of striae, excepting an obsolete sutural one; feet testaceous. I arrange this species with Bembicdium from the habit, the palpi in the specimen I possess being mutilated. [89] [A Tachys afterwards described as B. troglodytes Dej.-LEc.] 13. B. VARIEGATUM.-Black; head and thorax tinged with greenish; elytra varied with testaceous; feet pale piceous. Length one-fifth of an inch. Body impunctured, glabrous, beneath black; head black slightly bronzed; antennae and palpi fuscous, base piceous; thorax blackish slightly bronzed, tinged each side with green, broadest in the middle, a little contracted behind, lateral edge a little excurved near the base, posterior angles rectangular, dorsal and basal lines distinct, an elevated acute line at the posterior angles; elytra black variegated with testaceous, or testaceous varied with black dots and lines, and with a slight cupreous tinge, strie punctured, profound, interstitial lines convex, third one with two distant punctures. Very closely allied to B. dorsalis, which may be a mere variety of this insect. This species is subject to great variety in its elytral markings, the chief color of the elytra being sometimes black and sometimes pale testaceous, with a greater or less number of lines and spots. 14. B. TETRACOLUM.-Greenish-black; feet rufous; elytra each with two rufous spots. Length nearly one-fourth of an inch. 1823.] 504 TRANSACTIONS OF THE Head deep greenish; antennae fuscous; base and palpi rufous; thorax broadest before the middle, contracted behind, lateral edge excurved at base, base punctured; elytra blackish, strie punctured, interstitial lines convex, third one with two distant punctures, a longitudinal, submarginal, rufous spot originating on the humerus, and an oblique, almost common, elongated one behind the middle; feet rufous. [This species is the same as the European one, which by the latest authorities is considered as B. ustulatum (Linn.;) which is also described as B. rupestre Illiger and Dejean, and considered by Erichson as Carabus Andrewe Fabr.-LEC.] [90] TRECHUS Clairville. Anterior tibiae emarginate; anterior and intermediate tarsi of the male dilated; elytra and wings entire; palpi filiform, the last joint of the exterior ones as long or longer than the preceding joint, not narrowed at base, but forming with that joint a fusiform mass. 1. T. CONJUNCTUS.-Head piceous-black; thorax rufous, impunctured; elytra dusky; feet testaceous. Length three-twentieths of an inch. Body impunctured, glabrous; head black or deep piceous; antennae brown; base and palpi testaceous; labrum piceous; mandibles rufous at base; thorax rufous, rounded behind, dorsal line not deeply impressed, basal lines slightly excavated, base impunctured; elytra blackish, margin and suture piceous obscure, striae impunctured, interstitial lines depressed; pectus rufous; sternum black; feet testaceous; postpectus black; abdomen black. Very common. The disk of the thorax is sometimes dusky or blackish. [Belongs to Stenolophus, and was subsequently described as Acupalpus misellus Dej.; A. rotundicollis and lugubris Hald.LEC.] 2. T. PARTIARIUS.-Head black; thorax rufous, rounded behind, punctured at base; elytra pale, disk dusky; feet testaceous. Length less than three-twentieths of an inch. [Vol. II AMERICAN PHILOSOPHICAL SOCIETY. 505 Body glabrous, beneath black; head black; antennae brown; base and palpi testaceous; nasus and labrum piceous; thorax rufous, rounded behind, dorsal line distinct, continued to the base, posterior lines excavated, dilated, and punctured, a few obsolete punctures before; elytra pale rufous or testaceous, somewhat darker on the disk, striae impunctured; pectus rufous; sternum black; feet testaceous; postpectus and abdomen black. [91] Very closely allied to the preceding, is less common, and is distinct by the punctures of the thorax, by the less abrupt posterior termination of that part, and by the consequent less obtuse form of the angles. [A species of Stenolophus, belonging to my 4th division, Trans. Am. Phil. Soc. 10, 386, and afterwards described as Acupalpus pauperculus and consimilis Dej.-LEc.] 3. T. RUPESTRIS.-Head black; thorax dark rufous, punctured at base, posterior angles not rounded, beneath black; feet testaceous. Length nearly one-fifth of an inch. Body glabrous, beneath black; head black; antennae brown; base and palpi testaceous; nasus and labrum deep piceous; thorax deep blackish rufous, gradually a little narrowed from before the middle to the hind angles, which are slightly angulated, the edge very slightly excurved at the hind angles; elytra with impunctured striae, disk blackish, margin and suture dark rufous; pectus piceous-black; sternum black; feet testaceous; postpectus and abdomen black. Var. a. Length less than one-tenth of an inch. Strongly resembles the two preceding species, but is sufficiently distinct by the form of the posterior thoracic angles. It is highly probable that Var. a. is in reality a distinct species. [A species of Bradycellus, afterwards described as Acupalpus elongatulus Dej., and Trechus Javwpes Kirby.-LEC.] 1823.] 506 TRANSACTIONS OF THE Family III. HYDR 0 CANTHARI. DYTISCUS Lin. Latr. Antennse longer than the head, setaceous; scutel distinct; three basal joints of the anterior tarsi, in the male, dilated, patelliform; palpi filiform. 1. D. FIMBRIOLATUS.-Attenuated before, blackish-green above; thorax and elytra yellowish on the outer margin, the latter with three series of punctures. [92] Dytiscus fimbriolatus Melsh. Catal. Length one inch and one-fifth. Body dark green, beneath piceous-black, impunctured, very distinctly widest behind and narrowed before; head smooth, with a slightly impressed spot on each side of the front; nasus and labrum yellowish, the latter with an impressed transverse puncture each side, the former blackish at base above; trophi and antennae rufous; mandibles at tip and labium black-piceous; thorax with numerous, minute, impressed, irregular lines, an anterior, abbreviated, indented, transverse line each side of the dorsal one, lateral margin yellowish; elytra with very numerous, abbreviated, longitudinal, irregular, impressed, unequal lines, which are obsolete near the suture, tip, and on the outer margin, three series of distant punctures slightly villous, lateral one indistinct, costal margin yellowish, which becomes obsoletely semideltoid near the tip; pectus and postpectus piceous-black; feet piceous; femora and basal joints of the anterior pairs yellowish-rufous; venter piceous, three lateral rufous punctures on each side. A black spot is often present on the middle of the yellow thoracic margin. This species approaches exceedingly near to D. limbatus of E. India; but, according to the observations of Dr. J. F. Melsheimer, it is smaller, the color is less olivaceous. more of a deep green, and the form a rather longer oval. [A species of Cybister, afterwards described as C. dissinmilis Aube.-LEC.] 2. D. VERTICALIS.-Suboval, above blackish, with greenish re[Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 507 lfections; thorax and elytra margined with yellowish, the latter with an oblique subterminal line. Length one inch and three-tenths. Body impunctured, above black, with olivaceous green reflections, beneath piceous-black, suboval, very slightly broadest behind and hardly narrowing before; head large; vertex with an obscure rufous spot, a geminate, impressed, punctured spot near the nasus, numerous superciliary [931 punctures; nasus and labrum yellowish, the former with an abbreviated impressed line each side before; antenne and palpi rufous at base, piceous at tip; labium ventricose between the insertion of the palpi, rufous; labium and gula rufous; thorax margined each side with yellowish, a longitudinal impressed line, a transverse, somewhat undulated, submarginal line of impressed punctures each side before, and a more abbreviated sparse one on each side behind; elytra margined each side with yellowish, which becomes obsolete behind, a yellowish, oblique subterminal line behind, three very distinct series of punctures, with alternate series of minute remote ones; pectus pale rufous; sternum black, hardly elevated before; postpectus piceous black; feet piceous; femora and basal joints of the anterior pairs rufous; venter piceous black, three obsolete, lateral, piceous spots. Differs much from the preceding species, in being far more robust before, and instead of the semideltoid termination of the yellow margin, there is an oblique subterminal line, as in D. marginatus, but it is very distinct from the latter species, by not having the yellowish anterior and posterior thoracic margins. 3. D. MEDIATUS.-Blackish, punctured, beneath black; thorax with a yellowish band and margin; elytra fasciate behind. Length about eleven-twentieths of an inch. Head rufous-yellow varied with dusky, base black; front with sometimes two oblique blackish spots; nasus paler; labrum whitish, particularly on the anterior margin; thorax black, a yellowish margin and abbreviated narrow band which is abruptly dilated backward near the lateral margin, where it becomes confluent with the basal margin; scutel black, impunctured; elytra blackish-brown varied with yellowish, minute, irregular lines, and as well as the thorax with numerous, minute punc1823.] 508 TRANSACTIONS OF THE tures, a yellowish, narrow, exterior, and subsutural [94] margin, and a common, arquated, somewhat undulated band behind the middle, and, a terminal one, obsolete or confounded with the tip; anterior feet and sternum testaceous; posterior feet piceous; thighs black; venter, third, fourth, and fifth segments each with a large, rufous, lateral spot. The grooves of the elytra in the female of this species are obsolete and abbreviated, and not more distinct than those of the male. [Belongs to Acilius, and was afterwards described as Colymbetes Maccullochii Kirby.-LEc.] 4. D. TAENIOLIS.-Blackish; thorax margined each side with rufous; elytra covered with confluent black points, three acute, pale rufous, longitudinal lines on each elytron. Length rather more than half an inch. D. pictus Melsh. Catal. Body oblong-oval, not wider behind, black, varied with rufous, beneath piceous-black; head with a double, impressed, very distinct line each side before; antennae, labrum, and nasus rufous, the latter with an impressed line each side; thorax with a slightly punctured, transverse line before, and an obscure rufous margin; elytra rufo-testaceous, but rendered black by small, dense, confluent punctures, which are entirely confluent near the suture, an immaculate outer margin, and undulated subbasal line, three acute pale rufous lines on each elytron, punctured striae indistinct, that next the suture more obvious, and composed of an interrupted series of minute punctures; pectus and postpectus piceous-black; feet rufo-piceous; venter piceous-black, segments piceous at tip. I have seen but one sex of this species, a female, which was sent to me by Dr. J. F. Melsheimer, under the name which I have adopted; that of pictus above quoted, having been previously applied to a different insect, although that insect does not belong to this genus in a rigid arrangement. [95 ] [This is a Colymbetes also found in South America; it'was previously described as D. calidus Fabr., and subsequently as Hydaticus meridionalis Mels.-LEC.] [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 609 COLYMBETES Clairville. Antennae longer than the head, setaceous; scutel distinct; basal joints of the four anterior tarsi of the male almost equally dilated, not patelliform; palpi filiform. 1. C. ERYT[H]ROPTERUS.-Black; elytra dark-reddish-brown, margin and base paler; feet towards the tips piceous; body rounded behind. Length not quite two-fifths of an inch. Dytiscus eryt[h]ropterus Melsh. Catal. Body black, above divided by minute lines into minute, irregular, longitudinal, or suborbicular spaces; head black, two indistinct piceous spots on the vertex, and an abbreviated line and puncture on the front each side; antenna and palpi rufous; thorax black, dorsal line abbreviated, obsolete, lateral edge arquated; scutel black, plain; elytra reddish-brown, darker on the posterior disk, immaculate, exterior margin and base paler, rounded behind, inflected margin black; pectus and postpectus black; sternum acutely carinated; feet piceous, middle of the thighs black, nails of the anterior pair in one sex dilated in the middle and compressed; venter black, segments piceous at tip. Rather less convex than the succeeding species, and somewhat more dilated. The color of the head and thorax is manifestly distinct from that of the elytra, and forms a good specific character. [Belongs to Agabus.-LEc.] 2. C. FENESTRALIS.-Black, slightly bronzed; elytra fourspotted, anterior spots obsolete, terminal ones distinct, beneath piceous-black. Length two-fifths of an inch. [96'] Dytiscus fenestralis Melsh. Catal. Body black, above slightly bronzed and divided into very minute suborbicular, depressed granules, beneath piceous-black; head with two obsolete piceous spots on the vertex, a definite, impressed, abbreviated, oblique, frontal line, with a smaller oblique one above, each side; antennae and palpi piceous; thorax, an obsolete, punctiform, central line, often wanting; elytra, on each a submarginal, elongated, obsolete, rufous spot behind the 1823.] 510 TRANSACTIONS OF THE middle, and a subtriangular one near the tip; pectus and postpectus not obviously granulated; sternum acutely carinated; feet piceous; venter with very numerous, oblique, irregular lines. Var. a. Above dark reddish-brown, margin paler, spots yellow, distinct, piceous; feet pale rufous. My friend Dr. J. F. Melsheimer, in a letter written soma time since, observes that "the two yellowish maculae near the apex of the elytra differ oftentimes in depth of coloring and in size. I have several specimens that have the macula of an irregular, others of an oval or elongated form, and the color of all the different shades from a faint yellow to a light brown. It delights in miry forest springs, where it feeds on tender vegetables and minute insects. If it is caught and pressed between the fingers, it will exude from the divisional line of the stethidium (truncus) and abdomen, a white milky substance. It moves with great activity." It undoubtedly approaches very closely to C fenestratus of Europe, which insect has the same fenestrate elytral spots; as well as another insect which is described by Marsham under the name of D. obscurus. [Belongs to llybius, and was afterwards described as Dytiscus biguttulus Germ.-LEC.] 3. C. AMBIGUUS.-Black; elytra dark reddish-brown; feet rufous; body somewhat acute behind; vertex with obsolete piceous spots. [97] Length not quite seven-twentieths of an inch. Body black, above with minute, depressed, irregular granules; head black, two indistinct piceous spots on the vertex and an abbreviated frontal line and puncture each side; antennae and palpi pale rufous; thorax black, dorsal line obsolete; scutel black; elytra dark reddish-brown, immaculate, margin and base paler, apex acute; epipleura black; sternum acutely carinated; feet pale rufous, posterior ones rufous. For this insect I am indebted to my friend Dr. J. F. Melsheimer, who sent it to me as a distinct species. It approaches very closely to E. erythropterus, but may be distinguished by its smaller size, [Vol. IIL AMERICAN PHILOSOPHICAL SOCIETY. 511 less dilated form, more gradually attenuated and more acute posterior termination of the body. [A species of Agabus, afterwards described.s A. infuscatus Aube: Colymbetes discolor Harris, is probably the same.-LEC.] 4. C. SERIATUS.-Black, immaculate, slightly purple-bronzed; elytra with about three irregular series of punctures on each; lateral edge of the thorax somewhat rectilinear. Length seven-twentieths of an inch. Body black; immaculate, above very slightly bronzed, divided into very minute, suborbicular, depressed granules, beneath black; head, a transverse frontal puncture each side, with double, parallel, obsolete, smaller ones above; antennae and palpi rufous; thorax, submargin slightly depressed, dorsal line obsolete, lateral and basal edges nearly rectilinear, posterior angles subacute; elytra on each three irregular series of villous punctures, and a submarginal less distinct one; epipleura piceous; sternum acutely carinated, depressed behind, slightly elevated, obtuse before; feet rufous, posterior pair piceous. This insect was sent me as distinct by Dr. J. F. Melsheimer. It is very closely allied to C. nitidus, but is considerably larger. [Also an Agabus described as A. striatus Aube, and A. arctus Mels.-LEc.] [98] 5. C. NITIDUS.-Black; elytra with about three irregular series of punctures on each; lateral edge of the thorax arquated each side. Length three-tenths of an inch. Dytiscus nitidus Melsh. Catal. Body black, immaculate, polished, and divided into very minute, irregularly orbicular granules, beneath black; head, a transverse, abbreviated, frontal line each side, superior punctures obsolete or wanting; antennae and palpi rufous; thorax, dorsal line abbreviated, central, lateral edge arquated, posterior angles subacute; elytra with three irregular series of villous punctures, and a submarginal and sutural less distinct one; epipleura black; sternum acutely carinated, depressed behind; feet piceous, anterior ones rufous. The chief difference between this species and the preceding one appears to rest in the general form and size of the body, the color 1823.] 512 TRANSACTIONS OF THE and markings being nearly the same; the present is much smaller, of a more rounded oval, and much more obtusely rounded before. [Also an Agabus.-LEc.] 6. C. BICARINATUS.-Reddish-brown, punctured; sternum bicarinated. Length rather more than three-tenths of an inch. Body reddish-brown or ferruginous, oblong-oval, with minute numerous punctures; head, lateral frontal line oblique, puncture above wanting; thorax, a submarginal slightly rugose line, dorsal line obsolete; elytra attenuated behind, rather darker than the thorax, about three obsolete irregular series of punctures; sternum bicarinate; feet, anterior pairs paler. [The type of the genus Matus Aub6.-LEC.] 7. C. VENUSTUS.-Pale rufous, beneath testaceous; elytra blackish lineated with whitish. [99] Length about three-tenths of an inch. Body pale rufous, minutely punctured, beneath testaceous tinged with reddish, minutely lineated; head blackish at base; antennae and palpi testaceous; thorax at the middle of the base and tip blackish; elytra blackish, with very minute, numerous fenestrate punctures, a submarginal whitish line interrupted at tip, passing round the humerus, and falcate on the base, an abbreviated subsutural one at base, hardly attaining the middle, and two or three smaller obsolete ones near the marginal line; sternum acutely carinated. A remarkably handsome and distinct species. It is not common, and may probably prove to be the interrogatus of Fabricius. [This is D. interrogatus Fabr., and constitutes the genus Coptotomus Say, infra.-LEc.] 8. C. GLYPHICUS.-Dark brown or blackish; elytra profoundly striated. Length one-fifth of an inch. Dytiscus glyphicus Melsh. Catal. Body dark reddish-brown, minutely punctured, beneath blackish, minutely lineated; thorax with an anterior, indented, rugous, submarginal line; elytra with eleven profoundly impressed strise, alternately abbreviated towards the tip, the inner ones abbreviated [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 513 at base, marginal one extending from the middle towards the tip; feet rufous. This insect varies in being of a paler color. I found it numerous in fresh water ponds on Sullivan's Island, South Carolina. [A species of Copelatus afterwards described as C. 10-striatus Aube.-LEC.] 9. C. OBTUSATUS.-Black; elytra four-spotted, punctured. Length three-tenths of an inch. Body black; head with two obsolete piceous spots on the vertex, a single [100] impressed, abbreviated, frontal line each side; antennae and palpi piceous; elytra with two or three distinct series of punctures, somewhat irregular, scattered behind, each elytron with a pale, fenestrate, elongated, submarginal spot behind the middle, and a subtriangular one near the tip; feet piceous. Var. a. Body beneath testaceous; frontal spots obsolete. This species approaches very near to fenestralis, but differs in having the series of large distinct punctures, in being not more than half the size of that insect and more obtuse before. Found on Mr. R. Haines's farm, Germantown. [A species of Agabus afterwards described as A. gagates Aube. -LEC.] 10. C. STAGNINUS.-Oval, black, beneath rufous; vertex with two piceous spots; elytra with a submarginal whitish line -behind. Length less than seventh-twentieths of an inch. Dytiscus stagninus Melsh. Catal. Body oval, obtuse behind, black, beneath rufous; head with two obscure piceous spots on the vertex, a single, impressed, transverse, abbreviated line and point each side before; nasus and labrum piceous; elytra with three dilated lines of irregular, profound, rather large punctures, becoming confused at tip, an abbreviated, submarginal, whitish line on each elytron, originating near the middle of the tip; tergum with a few hairs each side behind. [Also an Agabus, afterwards described as A. striola Aub6.LEC.] 1823.] 33 514 TRANSACTIONS OF THE LACCOPHILUS Leach. Antenna setaceous, longer than the head; scutel none; anterior tarsal joints of the male not patelliform; palpi filiform. 1. L. MACULOSUS.-Yellowish-testaceous; elytra blackish, lineated and spotted with white. [101] Length one-fourth of an inch. Dytiscus maculosus Melsh.?Catal. Body yellowish-testaceous, glabrous; elytra blackish, three spots or dilated lines at base, of which one is humeral and one subsutural, each emarginate at tip and profoundly so on the inner side, and the third rather shorter, arising from the middle of the base, two marginal spots of which the anterior one is much the largest, a common irregular spot behind the middle, and an apical common band, white, tip obliquely truncate. Var. o. Trunk beneath black. Var. 0. Yellowish-testaceous; elytra with a common black band behind the middle. Rather a common insect. The last variety is a remarkable one; but, when closely examined, traces of some of the spots are perceptible upon it. 2. L. PROXIMUS.-Yellowish-testaceous; elytra blackish, obsoletely spotted with dull whitish. Length three-twentieths of an inch. Body yellowish-testaceous, paler beneath; elytra with spots as in the preceding species, but obsolete, the larger marginal one distinct. This species I found very numerous in the fresh water marshes of South Carolina. I do not hesitate to give it as distinct from the preceding, although so closely allied to it by the elytral maculae. It is readily distinguishable by its inferior size. [Afterwards described as L. fasciatus Aube.-LEc.] HYDROPORUS Clairville. The four anterior tarsi apparently four-jointed, the fourth joint minute, and with the base of the fifth concealed in a profound fissure of the third joint; body oval, the breadth greater than the height; scutel none. [ 102 ] [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 515 1. i. vNDULATUS.-Ferruginous; elytra trifasciate with black. Length about three-twentieths of an inch. Dytiscus undulatus Melsh. Catal. Body ferruginous, very numerous, minute, villous punctures, hairs adpressed to the surface; head destitute of large, indented, frontal punctures; antennae and palpi paler; thorax at base and tip black, lateral edge very slightly arquated; elytra, suture and three undulated irregular bands black, of the latter, one is basal, one central, and the other subterminal. The bands sometimes occur dilated and decurrent, so as to form a common black disk to the elytra. [Also described subsequently as H. fasciatus Harris; the % is H. pubipennis, and the 9 H. velutinus Aube.-LEc.] 2. H. OPPOSITUS.-Blackish; head and base of the thorax ferruginous; elytra with six whitish marginal spots or subfascia. Length rather less than three-twentieths of an inch. Body with very numerous, villous, minute punctures, hairs adpressed to the surface; head rufous or ferruginous, four or six indented, frontal, distant punctures; thorax ferruginous, black at tip, about three indented punctures, placed transversely; elytra black, each with an irregular humeral spot, another placed upon the margin behind the middle, and a third apical one yellowish, edge yellowish; postpectus and venter blackish or deep piceous; pectus and feet yellowish-testaceous. This was sent to me as a distinct species by Dr. J. F. Melsheimer. It is very like undulatus. [This seems to be the species afterwards described as H. proximus Aub6.-LEC.] 3. H. NIGER.-Black, villous, obscure, immaculate; head and lateral margins of the thorax and elytra obscure rufous. [ 103] Length more than three-twentieths of an inch. Dytiscus niger Melsh. Catal. Body black, obscure, very numerous, minute: villous punctures, hairs adpressed to the surface; head obscure rufous, paler beneath, dusky each side of the front, a slightly indented spot each side before instead of the impressed line and punctures; antennae dusky towards the tip of each of the terminal joints; palpi, terminal joints blackish; thorax black, very obscure rufous 1823.] 516 TRANSACTIONS OF THE on each side, dorsal line none; elytra black, very obscure rufous each side near the base, stria or maculae none; epipleura rufous; pectus and postpectus black; feet rufous; venter black, segments slightly piceous at tip. 4. H. CATASCOPIUM.-Black, obsolete, spotted and lineated with rufous; feet rufous. Length three-twentieths of an inch. Body black, obscure, with villous punctures, hairs adpressed to the surface; head obscure rufous, dilated orbits and base black, indented frontal spots each side instead of impressed lines and punctures; antennae, terminal joints blackish at their tips; palpi, terminal joint black; thorax black, a central longitudinal spot, and irregular submarginal one each side, rufous, dorsal impressed line none; elytra black, margin rufous, with a transverse irregular process at base, and another at the middle, and common apical band, a double sutural line, an abbreviated line arising from the middle of the base, and a subsutural spot near the middle, rufous, a distinct sutural stria and an obsolete one near the middle; feet rufous. [Afterwards described as H. parallelus and H. interruptus Say. -LEC.] 5. H. LACUSTRIS.~-Rufous, obscure; a common impressed, [104] longitudinal line each side on the base of the thorax and elytra. Length more than one-twentieth of an inch. Dytiscus lacustris Melsh. Catal. Body rufous, obscure, with minute punctures; head with slightly impressed frontal spots; antennae, terminal joints tipped with blackish; maxillary palpi blackish at tip; thorax blackish at base and tip, base each side with an impressed, acute, oblique line not attaining the anterior margin; elytra with a blackish suture, base, and submargin, an impressed, acute, longitudinal line as long as the thorax arises from the middle of the base of each elytron, appearing to be a continuation of the lateral thoracic line; pectus and feet pale rufous; postpectus blackish; venter pale rufous. Var. a. Postpectus rufous. [Afterwards described as H. pulicarius Aube.-LEc.] [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 517 6. H. AFFINIS.-Rufous, obscure; a common impressed, longitudinal line each side on the base of the thorax and elytra; elytra varied with longitudinal black lines. Length more than one-twentieth of an inch. Body rufous, obscure, punctured; thorax blackish at base and in the middle, an impressed, acute line each side at base not attaining the anterior margin; elytra with a blackish suture, base, irregular submargin and intervening abbreviated lines, punctures of the disk rather larger, distinct, impressed line of the middle of the base of each elytron much abbreviated, obsolete. Differs from the preceding, to which it is very similar, in having rather larger punctures on the disk of the elytra, more distinct lines, and in having the impressed ones of the base very short and indistinct. [ 105] [Afterwards described as H. nanus Aube.-LEC.] HYDROCANTHUS Say. Antennae rather longer than the head, somewhat thicker in the middle; scutel none; maxillary palpi filiform; labiales, terminal joint dilatqd, subovate, compressed, entire; anterior tibiae mucronate, tarsal joints of the male not patelliform; a small pectoral scale covering the origin of the posterior feet. H. IRICOLOR.-Ferruginous; elytra dark reddish-brown, iridescent, attenuated behind. Length three-twentieths of an inch. Body pale ferruginous, above glabrous, impunctured, beneath with villous punctures; head obtusely rounded before; eyes not elevated above the surface; antennae eleven-jointed, originating beneath; labrum rather large, abruptly deflected, or somewhat inflected, entire; palpi whitish; thorax, posterior angles acute; sternum not prominent before, behind the origin of the anterior feet dilated, depressed, and connate with the poststernum by a rectilinear suture its whole width; poststernum dilated, depressed, equilateral, concealing the origin of the intermediate feet, posterior scales equilateral, obliquely truncate at tip, and concealing the origin of the posterior feet; feet, anterior tibiae minutely pectinate beneath, and terminated by a robust decurved hook; 1823.] 518 TRANSACTIONS OF THE tarsi abbreviated; elytra dark reddish-brown, iridescent, destitute of punctures or strie, and attenuated behind. This seems to be a rare insect; I have seen but a single specimen. This new genus certainly differs from all the genera of its family by the-form of the labial palpi, of the sternum and poststernum, mucronate anterior tibia, &c. It closely approaches the genus Noterus by the dilated labial [106 ] palpi, but differs in having those parts entire. It also has some relation to Haliplus by the scales which conceal the origin of the posterior feet. The proper situation of this new genus is between those two genera, but it is unquestionably much more closely allied to the former. HALIPLUS Latr. Antennae ten-jointed; palpi subulate; scutel none; tarsi filiform, five-jointed, posterior thighs concealed at base by a clypeiform scale; body oval, thick. 1. H. 15-PUNCTATUS.-Yellowish; thorax with two black spots at base; elytra punctured and spotted with black. Length five-fortieths of an inch. Dytiscus maculatus Melsh. Catal. Body pale yellowish, with numerous dilated punctures, rounded behind; head immaculate; thorax, a distinct black spot each side at base; elytra pale, with profoundly punctured striae, punctures dilated, black, each elytron with six black dots placed 1, 2, 1, 2, the anterior one before the middle, the two succeeding ones on the middle.,The Dytiscus maculatus of Fabricius is altogether different from this species; it is a Colymbetes. I have, however, thought proper to reject the name mnaculatus as applied to this insect, lest it should be confounded with the Fabrician insect by those who adhere to his system or to that of Linne. [Belongs to Cnemidotus.-LEC.] 2. H. TRIOPSIS.-Pale yellowish; thorax with a black spot before; elytra whitish, spotted with black. Length nearly three-twentieths of an inch. Body pale yellowish, numerous dilated punctures; [107] thorax with a large conspicuous, deep black spot on the anterior [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 519 margin; elytra paler than the body, strie profoundly punctured, punctures color of the elytra, suture, base, tip and six spots on each elytron deep black, spots placed 1, 1, 2, 1, 1, the penultimate one joining the suture, suture at the centre dilated into a spot. GYRINUS Linn. Antenne shorter than the head, second joint with a lateral process; eyes apparently four; two posterior pairs of feet dilated very much compressed. 1. G. AMERICANUS.-Blackish bronze, beneath piceous; elytra smooth, slightly sinuate at tip. Length nine-twentieths of an inch, breadth more than onefourth of an inch. Gyrinus americanus, laevis, ater opacus, pedibus quatuor posticis testaceis. Fabr. Syst. Eleuth. 1, 275. G. americanus, bronz6; pattes ferrugineuses; elytres simples, presque strives. Oliv. Ent. 3, No. 41, p. 12, pl. 1, fig. 5. G. americanus Dr. Forsberg, Trans. Upsal Society. Body oblong, subovate, blackish, slightly tinged with bronze or purplish, beneath piceous; head, labrum deeply ciliated with white hair; thorax impunctured, scutel none; elytra with very minute obsolete, distant punctures, disk plain, each side with four or five obsolete stripe, tip distinctly and very obtusely sinuated, a projecting angle at the sutural tip; poststernum with distant profound punctures before; feet testaceous, anterior pair rufous and destitute of a femoral spine. A very common insect. When caught, a lactescent fluid [108] is secreted from the anal segment, that diffuses a strong odor very similar to that of the flowers of the Calycanthas. 2. G. EMARGINATUS. - Blackish-bronze, beneath blackish; elytra smooth, each simply rounded at tip. Length nine-twentieths to eleven-twentieths of an inch. Body blackish-green, slightly bronzed; beneath piceous black or fuliginous; head blackish-green; labrum at tip and antennae at base ciliated with white hairs; thorax impunctured; scutel none; elytra with very minute, obsolete, distant punctures, striae seven ior eight, more distinct in the A, obsolete, each elytron 1823.] 520 TRANSACTIONS OF THE rounded at tip, not sinuated or dentated; poststernum punctured before, punctures profound and distant; feet, posterior pairs testaceous, anterior pair in the % furnished with a prominent angle or obtuse spine near the tip of the anterior edge of the thigh. The elytra appear emarginated at the tip of the suture when at rest, in consequence of each of them having a rounded termination. This species must have hitherto been confounded with the Americanus with which it associates indiscriminately, but is sufficiently distinct by the armature of the anterior femora of the male and by the simply rotund termination of the elytra in both sexes. 3. G. ANALIS. —Black, slightly bronzed; elytra with punctured striee; thorax with a transverse indented line. Length one-fifth of an inch. Body beneath impunctured and tinged with piceous; front between the eyes with two impressed dots; labrum at tip and palpi at base ciliated with white hairs; mouth beneath piceous; labial palpi testaceous, blackish at tip; thorax with a transverse indented line rather before the middle not attaining to the lateral margins, and a short oblique line on each side behind it curving towards the lateral edge; scutel distinct, subtriangular [109] elytra with about eleven distinct narrow strise of punctures, interstitial lines depressed, each elytron very obtusely rounded at tip; poststernum impunctured; feet rufous; caudal segment testaceous. Resembles G. natator, but that insect is larger; it corresponds in size with the marinus Gyllenh., but the punctures of the elytra are much smaller, and the termination of the elytra is more obtusely rounded. 4. G. LIMBATUS.-Black; elytra with punctured striae; epipleura yellowish. Length more' than one-fifth of an inch. Front bipunctured; thorax with an obsolete, transverse impressed line before the middle and a short oblique line each side behind the middle; elytra striate with small punctures, interstitial lines depressed, each elytron obtusely rounded at tip, beneath [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 521 rufous; epipleura and margin of the pectus behind the eye yellowish. I obtained this species in Georgia and East Florida. It closely resembles the preceding species, but may be at once distinguished from it by the color of the epipleura and inferior surface of the body. [From Vol. IV. pp. 499-.] Descriptions of new North American Insects and Observations on some already described. * Real Nov. 2, 1832. AMBLYCHEILA Say. Labrum transverse, much wider than long; mandibles prominent, strongly toothed; labial palpi elongated; basal joint short, entirely concealed by the mentum; second joint short, spherical, resting on the edge of the emargination of the mentum; the third joint elongated, cylindric, with rigid hairs; fourth joint enlarging to the extremity where it is truncate, somewhat sinuate; mentum, tooth robust, prominent, canaliculate before, acute; antennae, second joint two-thirds the length of the third; wings none; elytra united; eyes very small, hemispherical, entire; clypeus at tip entire. A. CYLINDRIFOMIS Say, (Manticora) Journ. Acad. Nat. Sci.This insect, which I found near the Rocky Mountains, I described under the genus Manticora, but judging by the present mutilated state of the specimen it seems to agree better with the Megacephala. It differs from Manticora altogether in form, in the smaller size of the head, and in not having a lobed thorax, &c., but it corresponds in the comparative magnitude of the eyes, the diameter of which is hardly more considerable than that of the [A portion of this paper, ending with Pangus, [IV. 431] was first printed in the Disseminator, (a newspaper published at New Harmony) from June 1830, to August 1830; another portion from the beginning to Elater obesus [VI. 168] was issued as an 8vo. pamphlet, bearing on the title page the date New Harmony, Indiana, 1829-1833.-LEC.] 1834.] 522 TRANSACTIONS OF THE basal joint of the antennae. In the size of the eyes it differs greatly from Jlegacephala, also in the circumstance that the basal joint of its labial palpi is altogether concealed by the mentum: but it agrees with this genus in form, and is probably [410] more closely related to it than lManticora. Still, however, as it does not agree with any known group, it may perhaps be proper to construct a genus for its reception. MEGACEPHALA Latr. M. CAROLINA Fabr.-This species is certainly found in the southern part of the Union: I have an individual that was taken in New Orleans; it varies a little from the West Indian specimens in being less deeply sculptured. CICIINDELA Linn. 1. C. UNICOLOR Dejean.-This species appears to have an extensive range. I received a specimen from Dr. Pickering of Massachusetts, and I found another in Florida. It varies in having a slight touch of white on the tip of the elytra. 2. C. MARGINATA Fabr. Syst. Eleut. 1, 241, No. 48. Dejean has described this species under the name of variegata, Sp. Gen. 1, 84-see also vol. 2, 414. 3. C. UNIPUNCTATA Fabr. —Varies in having a very small obscure yellowish spot, half way between the ordinary spot and the tip, on the margin. 4. C. VULGARIS Say, Trans. Amer. Philos. Soc. 1818. Since described by Dejean under the name of obliquata, Sp. Gen. 1, 72, but corrected vol. 2, Supp. 414. 5. C. HIRTICOLLIS Say, Trans. Amer. Philos. Soc. 1818. Since described by Dejean with the name of repanda, Sp. Gen. 1, 74, but corrected vol. 2, 414. 6. C. DORSALIS Say, Trans. Amer. Philos. Soc. 1818. Since described by Dejean with the name of signata, Sp. Gen. 1, 124, but corrected vol. 2, 414, Supp.; and on page 426 of the same Supplement he describes another species under the name of dorsalis, which, however, will of course be changed, as mine has the priority. [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 523 7. C. PuRPUREA Oliv. Ins. 33, pl. 3, f. 34. Say, Trans. Amer. Philos. Soc. 1818, p. 419. C. marginalis Fabr. Syst. Eleut. 1, 240, and Dejean, Sp. Gen. 1, 55. Olivier has certainly the priority, and consequently the exclusive right as being the first describer of this species. [411] 8. C. SEXGUTTTATA Fabr.-Dejean has ascertained autoptically that C. violacea Fabr. is the immaculate variety of this species. 9. C. 12-GUTTATA Dej.-I obtained a specimen in Missouri State. Of this genus I have in my cabinet twenty-two species, natives of the United States, that have been described. ARETHAREA Say. Art'ficial character.-Elytra truncated; terminal joint of the maxillary palpi acicular; anterior tibiae simple. Natural Character. —Head large, wider than the thorax, contracted behind at the junction with the thorax; antenna originating beneath a carina, with the first joint much shorter than the head; labrum short, bilobated; the lobes divaricated; margin hairy; mandibles very prominent, arquated, acute; within prominently and acutely denticulated; maxillae rectilinear with rigid hairs within; palpi with the penultimate joint dilated; ultimate joint acicular and minute; labium at tip with two equal membranaceous lobes and a lateral robust seta; palpi very small and feeble, terminal joint somewhat shorter and more slender than the preceding one; mentum transverse, simple; destitute of auricles; thorax cylindrical; truncate before and behind; elytra broadly truncate at tip; tibiae, anterior pair simple; tarsi with subequal simple joints; the basal ones slightly longest; nails unarmed; posterior pair of feet with the nails pectinated. Obs. The prominent, arquated and denticulated mandibles of this curious insect resemble, with some accuracy, those of Cicindela; but the general appearance and extraordinary assemblage of characters widely separate it. It has the truncated elytra of Lebia and its congeners; the simple anterior tibiae of Cicindela; and a singular character that seems to connect the two families, that of having the anterior pair of nails simple and the posterior pair pectinated. We may also remark, however, that the acicu1834.] 524 TRANSACTIONS OF THE lar terminal joint of the maxillary palpi is a trait in common with Benmbicium Bon. A. HELLUONIS.-Head black; thorax rufous; elytra blue. Inhabits Pennsylvania. Head punctured, somewhat hairy; eyes small, almost equidistant [412] between the tip of the mandibles and the thorax; antenne, first and second joints pale rufous; labrum yellowish-rufous; mandibles piceous; palpi pale yellowish rufous; thorax punctured, excepting along the dorsal middle; elytra destitute of striae or punctures, blue, with a purplish reflection; feet and postpectus pale yellowish; knees and tarsi brownish. Length three-tenths of an inch. The intermediate feet and the antenne, excepting the first and second joints, are deficient in this specimen. I am not sure whether I obtained it on our journey to the Rocky Mountains, to St. Peter's river, or in Pennsylvania, but I think the latter. [No insect has yet been seen by other entomologists, which at all approaches the description here given. With regard to the systematic relations which such an object would have, it is quite obvious that it should not be placed with the Carabicde, since the mentum transverse, simple, destitute of auricles, is altogether foreign to the Adephagous series. This form of mentum, with the subulate palpi and bilobate labrum, fix the head, at least, as belonging to a Staphylinide. In that family the insertion of the antenna, form of palpi, ligula and mandibles, prove conclusively that it enters the group Peederini. In fact, there is nothing in the description of the head, thorax and anterior legs, which forbids a reference to Cryptobium bicolor or C. melanocep7alunm. With regard to the elytra and posterior legs, I must suppose them to have been derived from some foreign Carabide, and that the union was effected unintentionally, before the specimen came under Say's notice.-LEc.] CASNONIA Latr. C. RUFIPES Dej.-The insect of this genus represented by Drury (Ins. 1, pl. 42, f. 4 and 6) is probably a variety of this species. Dejean has not noticed this figure at all. The Galerita americana is represented in the same plate. [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 525 SPHERACRA Say. Elytra entire; tibia emarginate; terminal joint of the tarsi profoundly bilobated; nails simple; head as long behind the eyes as before them; thorax subcylindric; antennae much shorter than the body; basal joint much shorter than the head, joints excepting the second not very unequal in length, subcylindric; labrum emarginate; palpi with the terminal joint somewhat fusiform, subacute; mentum with a prominent acute central tooth. S. DORSALIS Fabr.-" Black; elytra striate, testaceous; suture broadly black. Inhabits Carolina. Museum of Mr. Bose. Smaller than 0. angustata. Antennae testaceous; head black, polished, broader than the thorax; thorax cylindrical, obscurely ferruginous; elytra striate, testaceous; suture broadly black, hardly attaining the tip; body black; feet testaceous." Fabr. Odacantha dorsalis Fabr. Syst. Eleuth. 1, 229. In my specimen the head only is black, or rather of so deep a rufous as to appear black, excepting the tip and base. [413] This well known species was referred by its discoverer, Fabricius, to his genus Odacantha; in which arrangement he was followed by Dejean, who, however, was fully aware of its generic difference from the 0. melanura, Fabr. Dejean, in his observations on the genus, says, " that in consequence of the joints of the tarsi being less filiform than those of the type of the genus, almost triangular, the penultimate one deeply bilobate and the extremities of the elytra rounded, it would be perhaps proper to make a new genus of this insect." In this remark I perfectly coincide, as I cannot see the propriety of joining, in the same genus, two insects whose characters in the artificial system place them in different families, though it cannot be denied that they have many, more intimate, natural affinities. I had written the above with the expectation of introducing a new species, in an insect which, in form and color, resembles the dorsalis exceedingly to the eye, excepting in size; but on close examination it proves to be widely distinct. [This genus was previously described as Leptotrachelus Fabr. — LEC.] 1834.] 526 TRANSACTIONS OF THE CYMINIDIS Latr., Dej. 1. C. PLATICOLLIS Say, (Lebia) Trans. Amer. Philos. Soc. vol. 2, new series. This species has been since described by Dejean under the name of C. complanata. In my specimens the palpi are hardly dilated. It varies in having the thorax darker and of the color of the head. I obtained an individual in Indiana. 2. C. LATICOLLIS.-Blackish; thorax transverse; feet pale rufous; elytra with slender strie and minute punctures. Inhabits near the Rocky Mountains. Body black-brown, punctured, with short hairs: head - thorax decidedly transverse, with numerous somewhat large punctures; truncate before, and a little sinuate behind; margin each side depressed and a little elevated, dull rufous; at the posterior an obvious tooth; elytra with very slender capillary striae in which are minute punctures, which are larger and more obvious towards the base and lateral margin; interstitial lines with a very slight convexity, and with numerous small punctures, rather larger than those of the striae; lateral margin [414] obscure rufous; tip truncate, without any appearance of sinuation: beneath obscure rufous, punctured; feet rufous; thighs and trochanters paler. Length about two-fifths of an inch, I obtained it when on the expedition to the Rocky Mountains with Major Long. The thorax is shaped somewhat like that of americana, Dej., but is wider, as in platicollis, Say. The elytra have not the slightest appearance of being sinuated at tip. 3. C. PILOSUS Say, Trans. Amer. Philos. Soc.-Since described by Dejean, under the name of pubescens, Sp. Gen. 1, p. 215, but corrected in vol. 2, Suppl. p. 446. CALLEIDA Dej. 1. C. VIRIDIPENNIS Say, (Cymindis) Trans. Amer. Philos Soc. This species has been since described by Dejean, under the name of marginata, v. Spec. Gen. 1, p. 222, but corrected vol. 2, Supp. p. 450, [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 527 He has given the name of viridipennis to another species; but as it is a subsequent name, he will of course change it. 2. C. SMARAGDINA Dej.-A specimen of this insect was sent to me by Dr. Pickering, from Salem, Massachusetts, so that it is probably a general inhabitant of the Atlantic States, but as I have found it myself but once (in the state of Ohio,) I should suppose it is rare. 3. C. PURPUREA Say, (Cymindis) Trans. Amer. Philos. Soc. 4. C. DECORA Fabr. Say, (Cymindis) Trans. Amer. Philos. Soc. Dej., Sp. Gen. 1, 224. LEBIA Latr., Dej. 1. L. ORNATA Say, Trans. Amer. Philos. Soc.-Since described by Dejean under the name of analis, Spec. Gen. 1, 265, and corrected, 2, Supp. 452. 2. L. VIRIDIS Say, Trans. Amer. Philos. Soc.-Dejean has described a species under the same name. It is closely allied to, if not the same as this, but if not the same species, the name must of course be changed. Spec. Gen. 1, 271. 3. L. FUSCATA Dej.-Varies in having the head nearly black, the thorax [415] yellowish ferruginous, and the elytra paler brown, the yellowish spots, particularly the terminal, almost obsolete. BRACHINUS Weber. B. STYGICORNIS.-Ferruginous; antenna black; elytra blackish blue. Inhabits Missouri. Body ferruginous, with short hairs: head with irregular punctures; each side between the antennae, becoming irregular, but slight; lineations near the eyes: antennwe brownish blue, first and second joints ferruginous: thorax with minute, irregular, transverse lines, dorsal lines well impressed: elytra slightly grooved, more obviously so towards the base; edges beneath purplish; postpectus, except in the middle, and venter blackish, with short whitish hairs. Length seven-twentieths of an inch. 1834.] 528 TRANSACTIONS OF THE Var. a. Sutural edge of the elytra ferruginous. I obtained this species in the winter of 1819, when with Major Long's party, at Engineer Cantonment, near Council Bluff. It occurred in considerable numbers, occupying some crevices of rock, eight or ten feet under the surface, in a temporary quarry, where they were hybernating. It differs from cyanipennis, Say, found at the same locality, by the different color of the antennae, &c. Can this be the Janus, or is the quadripennis Dej. synonymous with that species described in Turton's Linn.? CLIVINA Latr., Dej. 1. C. BIPUSTULATA Fabr.-The true species of this author has almost always, if not in every instance, but two spots on the elytra, and these are terminal. The second interstitial line has seven or eight subequidistant punctures, and the fourth interstitial line has five or six punctures, subequal, excepting the terminal one, which is more distant. 2. C. QUADRIMACULATA Palisot de Beauvois.-This species is quite distinct, though very closely allied to the bipustulata. It is similar in size and almost so in form; but the thorax is proportionally longer. In color it is generally like the preceding, but in addition to the two terminal punctures of the elytra, their base is more or less, but generally obsoletely, tinged with obscure rufous. The interstitial lines are [416] altogether destitute of punctures. I have a variety in my collection, of which the elytra are entirely of a rufous color and even paler than the terminal spots usually appear; these spots are of course not visible. 3. C. VIRIDIS Say, Trans. Amer. Philos. Soc., has been since described by Dejean under the name of rostrata, Sp. Gen. 1, 419, but corrected vol. 2, Supp. 478. Of this genus I have eight described species of this country. CARABUS Linn. 1. C. VINCTUS Weber.-I think it highly probable that Dejean is right in considering, as he does, (doubtfully however), my C. interruptus to be the same as this. Weber's expression, "lineis elevatis tribus," renders this conclusion highly probable. [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 529 2. C. LIGATUS Germar, Sp. Novae, p. 6.-Since described by Dejean under the name of carinatus, Sp. Gen. 2, 80. He quotes ligatus doubtfully as synonymous. His description, however, agrees so perfectly that I feel no hesitation in considering them the same. 3. C. SERRATUS Say, Trans. Amer. Philos. Soc.-Since described by Dejean under the name of lineato-punctatus, Sp. Gen. 2, 77; the former has, of course, the priority. 4. C. EXTERNUS Say, Jour. Acad. Nat. Sc.-The largest American species I have seen. It belongs to Dejean's twelfth division of this numerous genus. What is the C. teedatus L.? CALOSOMA Weber. 1. C. LUXATUM Say, Jour. Acad. Nat. Sc. 3, 149.-Dej., Sp. Gen. 2, 196. 2. C.. LEVE Dej., Sp. Gen. 2, 210.-I obtained an individual of this insect in Mexico. It corresponds accurately with the description; but in addition I may add that it varies in having a large obscure rufous spot on the vertex. 3. C. CALIDUM Fabr.-My description in the Trans. Amer. Philos. Soc. was taken from the true Fabrician species as is evinced by the expression " dilated, impressed, golden dots," as applied to the elytral [417] excavations. But I did not sufficiently examine the very closely allied species which Dejean has separated from it, as I supposed it to be only a variety. ELAPHRUS. 1. E. FULIGINOSUS.-This new species was found in Pennsylvania by Mr. Le Sueur, to whom I am indebted for the specimen; and although the head and thorax are destroyed, yet sufficient character remains to prove it the analogue of the E. uliginosus, Fabr., of Europe. In comparison with that species, however, many dissimilarities are perceptible. The discoidal indentations are larger and more obviously emarginated by the entering angles of the interstitial spaces. The interstitial spaces are somewhat less regular, and have rather large punctures, particularly towards the base; towards the tips of the elytra the punctures are not larger than those of the uliginosus, but are fewer in num1834.] 34 530 TRANSACTIONS OF THE ber. The body is slightly larger than in that species. It appears to be rare. [This is perhaps E. cicatricosus Lec.-LEc.] 2. E. RUSCARIUS.-This species I described in the Trans. Amer. Philos. Soc., with a mark of doubt, as the E. riparius Fabr., but having recently compared it more accurately with numerous European specimens, I think it may, with propriety, constitute a distinct, but certainly very closely allied species. In comparison with the riparius, it is rather more robust, of a darker color, more deeply sculptured, as well on the thorax as on the elytra, and the discoidal impressions are somewhat larger and more obvious. In these characters my specimens all agree, and I possess more or less mutilated specimens from Pennsylvania, Mississippi, Arkansaw, Missouri and the Rocky Mountains. I therefore have ventured to separate it as a distinct species. NOTIOPHILUS Dumer. 1. N. SEMISTRIATUS, Say.-Closely allied to N2. aquaticus F., and biguttatus F., partaking of the characters of both. Dejean states that it "ne differe peut-etre pas de l'une des espdces d'Europe," but he does not inform us which of the species; indeed they are all so closely [418] allied, that considerable examination is required to detect permanent differences. The elytral puncture is small, and like that of aquaticus, placed nearer the base than that of the biguttatus, but the strie like those of the latter, are not obsolete towards the tip; the four basal joints of the antennae are rufous, &c. 2. N. PORRECTUS Say. —V. semistriatus, var. b, Say. Trans. Amer. Philos. Soc. On close examination I am convinced that this deserves to rank as a separate species. In comparison with either of the species above mentioned, the thorax is much more contracted behind, and the labrum is more advanced. The feet are entirely rufous, even including the thighs. The head is larger than that of the semistriatus, and the strim are not so deeply impressed, but the impressed point of the elytra is similarly situated, though perhaps a little further back. The length is much the same. The color is tinged with violaceous. [Previously described as Elaphrus aneus Herbst.-LEc.] [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 531 CHLiENIUS Bonelli. 1. C. PUSILLUS Say, Trans. Amer. Philos. Soc.-Since described by Dejean under the name of elegamtulus. 2. C. TOMENTOSUS Say, (Epomis) Trans. Amer. Philos. Soc. — This species has been referred to this genus by Dejean; the palpi are not sufficiently securiform for Epomis. 3. C. CtRCUMCINCTtJS.-Green, tinged with violaceous; edges rufous. Inhabits Louisiana. Body green, more or less tinged with violaceous and brassy, punctured; head minutely and confluently punctured; in the middle tinged with bronze; lateral edges dark purplish; antenna reddish brown, three basal joints pale yellow with rufous incisures; labrum and mandibles honey yellow; the latter black at tip; palpi yellow; terminal joints honey yellow; thorax deeply punctured, sparse near the anterior angles, and almost wanting each side of the middle; dorsal line acute, almost obsolete; basal lines widely indented; lateral edge regularly arquated; dull rufous; basal edge rectilinear in the middle and a little oblique each side, making the angles rather more than rectangular; green a little tinged with brassy; scutel dark purplish; elytra with profound, obsoletely punctured stria; interstitial spaces flattened, punctuated, [419] sericeous; rather dull green with a slight violaceous reflection; exterior and apical edge dull rufous; beneath black; feet yellow, joints a little rufous; venter on the margin yellowish. For this pretty species I am indebted to Mr. J. Barabino of New Orleans. [Afterwards described as C. virens Chaud.-LEC.] 4. C. VIGILANS.- Head and thorax brassy; antenne at base and feet ferruginous; elytra violaceous. Inhabits Mexico. Pubescent; head impunctured, brassy-green, polished; two obsolete indentations between the antennae; labrum transversely narrow, truncated, and with the palpi dull rufo-ferruginous; antennae fuscous, pubescent, three basal joints subglabrous, rufo1834.] 532 TRANSACTIONS OF THE ferruginous; thorax brassy-green, with rather dense, very short hair, polished; dorsal and basal impressed lines distinct; posterior angles not excurved, but obtusely angulated, almost rounded; elytra bluish violaceous, with punctured strie; interstitial spaces pubescent, depressed, and minutely granulated, beneath blackish; feet rufo-ferruginous. Length half an inch. Much like C. nemoralis Say, but the antenna of that species are entirely rufoferruginous, its posterior thoracic angles are slightly excurved, &c. 5. C. SOCCATUS.- Blackish; feet ferruginous with blackish tarsi and joints. Inhabits Mexico. Body blackish, with a slight violaceous tinge; minutely pubescent, punctured; head blued-black, glabrous, two slight indentations between the antennae, and an obsolete transverse one between the eyes; antenna pubescent, blackish, three basal joints dark piceous; palpi piceous; thorax short; lateral margin regularly arquated; posterior angles rounded; impressed lines dilated; elytra with punctured strie; interstitial spaces minutely granulated, depressed; beneath blackish; feet rufo-ferruginous, joints and tarsi blackish-piceous. Length nearly half an inch. Resembles vigilans Nob., but the thorax is shorter and the lateral curvature is more regular, that of the preceding species being almost rectilinear from near the middle to the posterior angles; the colors also are different in their arrangement. [420] Of this genus I have sixteen North American described species. OODES Bonel. 0.? PARALLELUS.-Black; thoracic angles rufous; feet piceous. Inhabits Louisiana. Body black, very slightly tinged with piceous; head with but a slightly impressed point between the antennae; antennae reddish brown, three basal joints honey yellow; palpi honey yellow; mandibles piceous; thorax narrowed before, smooth, dorsal line [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 533 distinct, not extended on the margins; basal lines distinct, oblique; region of the posterior angles a little, but widely, depressed, rufous or sanguineous, and by transmitted light it appears reticulated; impunctured; posterior angles rounded, but not obtusely so; greatest width a little behind the midle; elytra with the striae continued parallel to the tip, well impressed, minutely punctured; interstitial spaces depressed, third with a single slight puncture on the posterior fifth from the base; beneath black; posterior angles of the pectus, epipleura and feet piceous; anterior tarsi with four not widely dilated subquadrate joints, the fourth joint being as large as the third, and all beneath with dense fastigiate hairs; intermediate tarsi also somewhat dilated. Length less than two-fifths of an inch. The elytra are hardly perceptibly sinuous near the tip. The specimen, for which I am indebted to Mr. J. Barabino of New Orleans, is a doubtful congener of the 0. helopoitdes Fabr., than which the body is somewhat more elongated, the thorax more gradually narrowed before. It has at first sight more the appearance of the Harpalus terminatus or Calathus gregarius Say. The intermediate tarsi are somewhat dilated, the anterior tarsi are not widely dilated and the terminal joint is as large as the preceding one. I place it in this genus provisionally, more specimens may show this arrangement to be incorrect. The parallelism of the striae of the elytra to their termination is a remarkable character, even more obvious than in the helopoides. [The type of Lachnocrepis Lee. Trans. Amer. Phil. Soc. 10, 391.-LEC.] [421] DICiELUS Bonelli. 1. D. PURPURATUS Bonelli.-Since described by Dejean under the name of chalybeus Sp. Gen. 2. 2. D. ELONGATUS Bonelli Say, Trans. Amer. Philos. Soc.Dejean is of the opinion that this is not the elongatus of Bonelli, and has described it with the name of furvus, but he has not stated the reasons for this opinion. [D. furvuzs Dej. is totally distinct from D. elongatus: it is allied to, and perhaps identical with D. ovalis Lee.-LEC.] 1834.] 534 TRANSACTIONS OF THE POGONUS Zeigl. P. RECTUS Say, (Feronia) Trans. Amer. Philos. Soc.-I may add to the description that the striae are well impressed and punctured rather densely on the sides; third interstitial line with about three punctures, excepting the middle one, hardly distinct from the punctures of the striae. [Belongs to Loxandrus; the anterior tarsi of the male are obliquely dilated, which accounts for the error of Say in referring it to Pogonus. —LEC.] PATROBUS Meg. P. LONGICORNIS Say, (Feronia) Trans. Amer. Philos. Soc.Recently described by Dejean under the name of americanus, Sp. Gen. 3, p. 34. Why he has added a synonym in this case, I know not. ANCHOMENUS Bonelli. 1. A. DECENTIS Say, (Feronia) Trans. Amer. Philos. Soc.Has been recently described by Dejean under the name of gagates. 2. A. CINCTICOLLIS Say, (Feronia) Trans. Amer. Philos. Soc. -Since described by Germar under the name of blandus, Sp. Novae, p. 12, and recently by Dejean by the name of corvinus Sp. Gen. 3, p. 109. 3. A. EXTENSICOLLIS Say, (Feronia) Trans. Amer. Philos. Soc., is also referred by Dejean to this genus. 4. A. DECORUS Say, (Feronia) Trans. Amer. Philos. Soc. is also refered to this genus by Dejean. 5. A. COLLARIS.-Black with a hardly obvious tinge of purple; tibia and tarsi piceous; thorax subquadrate; elytra with three punctures on the third interstitial line. Inhabits Indiana. Body black, polished, glabrous, with a few, rather long, marginal [422] hairs; head impunctured; base of the first joint of the antennae, of the mandibles black-piceous; antennae at tip brownish, third joint of the same length as the fourth; [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 535 impressions between the eyes rather deep; thorax rather short, wider than long, subquadrate, impunctured; lateral edge regularly curved; margin slightly elevated, narrow, broader towards the posterior angles; dorsal and anterior lines distinct; posterior lines dilated, suborbicular, slightly rugous; posterior angles very obtuse; anterior and posterior margins subequally broad; elytra with acutely impressed strias, regularly punctured; punctures small, obsolete towards the tip; third interstitial line with three punctures, two at the third striae and the terminal one at the second striae; interstitial lines much depressed; tibia, tarsi, knees and extreme base of the thighs piceous. Length seven-twentieths of an inch. This species is rather more robust in proportion to its length than the other American species. The thorax is much broader and shorter. The species is perhaps more like scutellaris Say, than any other; that insect is remarkably depressed about the region of the scutel. AGONUM Bonelli. 1. A. SUTURALE.-Green, polished; suture cupreous. Inhabits Mexico. Above metallic green, polished, impunctured; head with a slight coppery reflection; labrum, antennae and palpi blackish: thorax varied with cupreous; dorsal line and basal dots obviously indented; elytra with very slender striae; interstitial spaces wide and plain, first one cupreous, third with three punctures, equidistant, basal one on the third strie, middle one on the second striae; beneath piceous black; coxe piceous. Length three-tenths of an inch. This is a brilliant species, equalling in this respect the 8-punctatum Fabr., and errans nob. and but little inferior to cupripenne nob., all of which, together with nutans nob., belonging to this genus, although I referred them to the including genus Feronia, Latr. The cupripenne nob., is equal in splendor, though not in magnitude, to the 6-punctatum Fabr. In comparison with parumpunctatum F., the form is more robust, thorax more brilliant, wider, and is as wide at base as anteriorly; the interstitial spaces also are much more flattened. [423] 1834.] 536 TRANSACTIONS OF THE 2. A. ORBICOLLIS.-Black; thorax rounded; third interstitial line with three punctures. Inhabits Mexico. Body black, polished, impunctured; antennae, basal joint and palpi piceous; thorax orbicular, truncate before and slightly so behind; lateral edge regularly arquated, not depressed, but with a simple and equally elevated edge; dorsal line obsolete, anterior and posterior transverse lines obsolete; basal impressed lines or dots distinct; elytra with well impressed striae, which are crenate, not punctured; interstitial lines convex, the third from the suture with three equidistant punctures; feet piceous; Length nearly seven-twentieths of an inch. Size of A. viduum Fabr., with the similar punctures on the third interstitial line, excepting that they are equidistant, and these lines are more convex, the thorax is much more orbicular, the feet differently colored, and there is no brassy reflection. This cannot be the melanarium Dej., for the strie are as obvious as in the viduum, and although the thorax agrees with that insect in being "plus etroit" than that of the viduum, yet it would not be described as " subrotundato," as that author applies the same term to designate the form of the thorax of viduum. It is much like A. punctiforme Say, but it is a little more elongated, the thoracic lines are much less distinct, &c. 3. A. NUTANS Say, (Feronia) Trans. Amer. Philos. Soc.-Since described by Dejean with the name of striatopunctatun. 4. A. ERRANS Say, (Feronia) Journ. Acad. Nat. Sci.-The interstitial space has three punctures, of which the first and second are somewhat nearer than the second and third. 5. A. PUNCTIFORME Say, (Feronia) Trans. Amer. Philos. Soc. I have an individual that has four punctures on the third interstitial space, as Dejean describes his albicrus to have. 6. A. OBSOLETUM Say, (Feronia) Trans. Amer. Philos. Soc. Since described by Dejean by the name of luctuosum, Sp. Gen. 3, 172. 7. A. LIMBATUM Say, (Feronia) Trans. Amer. Philos. Soc. Since described by Dejean by the name of palliaturn, Sp. Gen. 3, 174. [424] [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 537 OLISTHOPUS Dejean. 1. O. PARMATUS Say, (Feronia) Trans. Amer. Philos. Soc. Dej. Sp. Gen. 3, p. 181. 2. 0. CINCTUS.-Blackish; edge of the thorax, elytra and feet dull rufous. Inhabits Pennsylvania. Body blackish; head impunctured; antennae dusky, pale rufous at base; palpi piceous; thorax with the dorsal and anterior lines almost obsolete; lateral narrow margin obviously rufous; lateral basal impressions very distinct, suborbicular and sparsely punctured: elytra dull reddish brown, with a slight perlaceous reflection; striae well indented, impunctured; interstitial spaces depressed, third space with an impressed puncture beyond the middle; feet yellowish piceous, posterior pair darker. Length less than three-tenths of an inch. Much like the parmatus Say. It is more slender. [A specimen was given me by Dr. Melsheimer; not different from 0. parmatus.-LEC.] FERONIA Latr. Dej. P(ECILUS Bon. 1. F. CONVEXICOLLIS Say.-Resembles F. chalcites Say, but isshorter, the thorax more convex, and the punctures of the third interstitial stria of the elytra are three, of which the terminal one is near the tip. STEROPUS Meg. 2.. OBSOLETA.-Blackish-ferruginous; elytra, striae obsolete each side and at tip. Inhabits Indiana. Body very dark rufous, polished; labrum, palpi, mandibles at base, antennae, feet and abdomen honey-yellow; head impunctured; a slightly raised line over the antennae, inside of which the front is slightly corrugated transversely each side; thorax with the surface obsoletely corrugated, visible in a particular direction; dorsal line acute, slightly impressed; basal lines indented, single, viewed from above orbicular, definitely and rather deeply 1834.] 538 TRANSACTIONS OF THE impressed; base a little emarginate, not wider than the abdominal petiole; elytra with punctured, not deeply impressed strie, obsolete at tip and on each side; marginal ocellate punctures about seventeen, in a continuous series rather sparse in the middle: near the tip very slightly sinuated; third interstitial space with a puncture [425] near the middle of the second stria. Length two-fifths of an inch. Closely allied to S. llligeri Panz., but the thorax of that species is not so narrow at base, and its elytral striae are not obsolete at tip, and not even decidedly so on the sides. It is excedingly like S. ventralis N., but it is more robust, and the sides of the elytra are more arquated. The characters of this species agree very well with the description of tenebricosa Dej., excepting that the elytra are not "assez fortement sinuees posterieurement." 3. F. OBscURA.-Black; tibiae and tarsi dark rufous; elytral striae obsolete on each side. Inhabits Indiana. Body black; labrum and base of mandibles tinged with rufous; palpi dull honey-yellow; antennae blackish ferruginous; front with two indented lines; head impunctured; thorax not so narrow at base as the petiole; dorsal line acute, not deeply impressed; basal lines well indented, definite, impunctured, not orbicular, viewed in any direction, very slightly arquated; elytra striate; the striae not distinctly punctured, obsolete on the lateral submargin, and not so obvious at tip as on the disk; marginal ocellated punctures about seventeen; near the tip rather slightly sinuate; third interstitial tripunctured, the two anterior punctures at the third stria. Length less than nine-twentieths of an inch. Resembles the preceding, but the thorax at base is wider, and the body is longer. In the proportion of the base of the thorax it corresponds with F. lligeri Panz., but aside from color, it may be distinguished from the obsolete lateral striae, the much less dilated thoracic basal lines, &c. [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 539 PLATYSMA Sturm. Dej. 4. F. OBLONGONOTATA.-Dark reddish-ferruginous; elytra with five or six large subsutural punctures. Inhabits North West Territory. Body with a hardly perceptible metallic gloss; head darker; thorax with the dorsal line very distinct; lateral basal lines well indented and with obsolete confluent punctures; posterior angles angulated; elytra striated; five or six large indented punctures placed somewhat [426] alternately on the second and third striae; marginal ocellate punctures with their regions indented. Length nine-twentieths of an inch. This is the analogue of the F. oblongopunctata F., corresponding in the punctures of the elytra, but differing in color, and having the thorax somewhat more robust. 5. F. DEPARCA.-Reddish-brown; thorax punctured on the anterior and posterior margins. Inhabits Mexico. Body reddish-brown, rather pale; head much darker, tinged with blackish, impunctured; antennae short, not reaching the base of the thorax; thorax rather abruptly contracted behind; anterior and posterior margins deeply punctured, the punctures of the former not extending to the lateral margin; lateral margin with a puncture furnishing a hair on the middle and another on the posterior angles, which are rectangular; dorsal line distinct, but not deeply impressed; basal impressions dilated, and with all the base punctured; elytra with slender striae, not deeply impressed, but with very distinct punctures; stria obsolete towards the tip; epipleura and all beneath paler. Length nearly half an inch. The light color, with the punctured anterior and posterior thoracic margins, will distinguish this species. It was taken by William Bennett and presented to me by Mr. Maclure. ABAX Bonelli. 6. A. CORACINUS Say, Trans. Amer. Philos. Soc.-I think this is the insect that Dejean has recently placed in Ziegler's genus 1834.] 540 TRANSACTIONS OF THE Myas, and described under the name of of cyanescens; the insect agrees perfectly with his description, but as the palpi of my only remaining specimen are deficient, I cannot be certain of its generic identity. 7. F. [A.] PERMUNDA.-Black, with a perlaceous reflection; third interstitial line three-punctured. Inhabits Indiana. Body black; antennae piceous, dull honey-yellow towards the tip; distinctly compressed; joints, in profile a little narrowed to the base; palpi piceous, not at all securiform, terminal joint less dilated at tip than that of the preceding joint; thorax with a slight perlaceous reflection, rather narrower at tip than at base; lateral margin depressed, [427] punctured, gradually reflected to the edge, which is but little arquated; posterior angles rectangular; disk impunctured; dorsal line well indented; basal lines two on each side, punctured within, deeply impressed, the exterior one very short; elytra brownish-black, somewhat iridescently pearlaceous; striae deeply indented, impunctured; scutellar striae short, but definite; interstitial spaces convex; third three-punctured, first puncture near the base on the third stria, second on the middle on the second stria, third towards the tip, also on the second stria; beneath piceous; sides very distinctly and numerously punctured. Length half an inch. I obtained this fine species a few days since under an old log. It does not at all agree with either of the descriptions of Dejean. The labrum is not emarginate. The terminal joint of the palpi is less dilated towards the tip than that of the A. parallelus Duftschm., or A. metallicus Fabr. MOLOPS Bonelli. 8. F. CONSTRICTA Say, Journ. Acad. Nat. Sciences. STOMIS Clairv., Dej. S. GRANULATUS.-Black, antennae dull rufous, blackish piceous towards the base. Inhabits Mexico. Body black, apterous, polished; head impunctured; impressed lines between the antennae very obvious; antennae blackish-pi[Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 541 ceous to the fifth joint, which with the others are dull rufous; first joint hardly as long as the third; labrum a little prominent, piceous, widely but not deeply emarginated before; palpi dull rufous, not very widely truncated at tip; labial not securiform; mandibles prominent, very acute; thorax as long as broad, not remarkably convex; impunctured; dorsal line distinct, not extending to the base, which is a little depressed; lateral margin depressed and reflected, narrow, wider near the posterior angles, which are somewhat acute; lateral edge excurved near the posterior angle; basal lines distinctly indented and dilated; base considerably wider than the peduncle; elytra somewhat depressed, ovate-oval; surface composed of very minute granules; striae slender, deeply impressed, impunctured; third interstitial space with three nearly [428] equidistant punctures, the terminal one much the largest, with minute elevated centres; tip very obtusely sinuous; tarsi dull rufous. Length less than two-fifths of an inch. Taken by William Bennett, during his stay in Mexico with Mr. Maclure. It will be obvious from this description, that our species does not well correspond with the S. pumicatus, Panz., but agreeably to the tables given by Dejean it cannot be placed elsewhere. It is larger and more dilated than pumicatus, the basal joint of the antennae is shorter, the palpi are not so obtusely truncated, and its habit and appearance quite different. PELOR Bonelli. P. AVIDUS Say, (Zabrus) Journ. Acad. Nat. Sc. [Ante, 95.] AMARA Bonelli. In my paper on the Carabiciand Hydrocanthari, published in the Trans. Amer. Philos. Soc. vol. 2, new series, as above quoted, I described five species of the United States, under the genus Feronia, agreeably to the arrangement of Latreille, indicating, however, at the same time, that they belonged to Bonelli's Amara. But Dejean and many other distinguished entomologists give the group a separate station. 1. A. MUSCULIS Say, (Feronia) Trans. Amer. Philos. Soc.Dej. Sp. Gen. 3, 477. 1834.] 542 TRANSACTIONS OF THE 2. A. BASILLARIS Say, (Feronia) Trans. Amer. Philos. Soc. 3. A. IMPUNCTICOLLIS Say, (Feronia) Trans. Amer. Philos. Soc.-Dejean thinks it the same as A. trivialis, Duftschm., but I have not yet compared it. 4. A. ANGUSTATA Say, (Feronia) Trans. Amer. Philos. Soc. 5. A. OBESA Say, (Feronia) Trans. Amer. Philos. Soc. 6. A. IMPUNCTATA Say, (Feronia) Trans. Amer. Philos. Soc.Dejean thinks it the same as thefamiliaris, Duftschm., but I have not satisfactorily compared them. The following species appear to be new: [429] 7. A. DOLOSA.-Black; oblique line near the thoracic angle obviously impressed; elytra with impunctured strive. Inhabits Mexico. Body black, impunctured; head with the impressed lines between the antenna absolete; antennae fuscous, joints rather short, three basal joints honey-yellow; palpi black piceous, thorax rather short, lines not deeply impressed; oblique line near the posterior angles very distinct; hair of the lateral margin situated at onethird of the distance between the anterior and posterior angles, another hair at the basal angle; elytra with impunctured capillary striae; interstitial lines depressed, hardly convex; feet piceousblack; tibiae and tarsi a little paler. Length nearly three-tenths of an inch. Resembles A. impuncticollis, nob., and A. communis and vulgaris Fabr., but differs from all in color, greater brevity of the thorax, more robust form, &c. Viewed in a particular light, a tint of blue may be, with some difficulty, detected. 8. A. SERA.-Greenish black; three basal joints of the antenna yellowish. Inhabits Mexico. Antennae fuscous; first, second, third and base of the fourth joints yellowish; thorax impunctured, basal angles rectangular, with the oblique line not deeply impressed; basal lines rather deep, abbreviated, definite, impunctured; dorsal line distinct; elytra with the striae impunctured, acutely impressed; basal abbreviated striae rather long; interstitial lines with a very slight [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 543 convexity, nearly flat; near the lateral tip slightly and rather acutely sinuated; tibiae and tarsi-piceous. Length three-tenths of an inch. The thorax is longer than that of the preceding species, and the interstitial lines are a little convex, which will readily distinguish it from A. impuncticollis, N. The colors of the antennae as strongly contrast as those of A. vulgaris F. 9. A. FURTIVA.-Pale; thorax punctured at base; elytra with punctured strise. Inhabits Indiana. Body honey-yellow, more or less tinged with dusky; antennae, palpi and all beneath paler; head with the frontal impressed lines dilated, distinct; thorax a little contracted at base, the posterior angles slightly excurved and acute; dorsal line well impressed, particularly behind the [430] middle; basal lines deeply impressed and definite, punctured; impressed lines of the posterior angles, distinct and rather deep, punctured; base punctured; elytra with punctured strie; the punctures orbicular and close set; near the tip obtusely, but not deeply sinuated. Length less than two-fifths of an inch. Resembles the A. fulva, Ill., particularly in the form of the thorax. The color has sometimes a very slight metallic tinge, but never so obvious as in the fulva. 10. A.? GRoSSA.-Alternate interstitial spaces punctured. Inhabits N. W. Territory. Body short, robust, convex, blackish piceous; head; thorax convex, descending much each side, transverse, oblongquadrate; dorsal line almost obsolete; anterior transverse line hardly obvious; basal margin depressed and somewhat rough; lateral margin depressed, but not elevated except near the posterior angles lightly; elytra with a sinus near the tip; striae well impressed, impunctured; interstitial spaces with from five to eight distinct punctures on the third, fifth and seventh spaces; marginal series of punctures small, almost indistinct. Length of thorax and abdomen nine-twentieths of an inch. This species I found in the north western part of the United States when traversing that country with Major Long's party. It is a remarkable insect, readily distinguishable by the peculiar [Vol. IV. 544 TRANSACTIONS OF THE puncturing of the elytra. I have two specimens, both of which are mutilated, so that I am not perfectly sure it belongs to this genus. [This is probably Nothopus zabroides Lee. formerly described by me as Euryderus zabroides, but the description is hardly sufficient.-LEc.] DAPTUS Dej. D. INCRASSATUS Dej. —This insect appears to be rare.-I obtained an individual in Pennsylvania. It has not yet occurred to me in the western States. [The type of Geopinus Lec.-LEC.] CRATACANTHUS Dej. C. PENSYLVANICUS Dej., is a common insect.-But it is not confined to Pennsylvania, as the name would seem to imply; it is abundant in this state, and I obtained three specimens near the Rocky Mountains; [431] these are somewhat smaller than the inhabitants of this vicinity, and of a paler color. PANGUS Zeigl. P. CALIGINOSUS Fabr.-Dejean refers this large species to Pangus, which he makes a division of his genus Selenophorus. ANISODACTYLUS Dej. 1. A. DTLATATUS.-Black; thorax transverse quadrate, not contracted behind; impunctured; first joint of the antennae testaceous. Inhabits Mexico. Body black, impunctured; antennae not reaching the base of the thorax; first joint pale testaceous, second joint darker, remaining joints blackish; impressed frontal lines very distinct; thorax without any appearance of puncture, not narrowed behind; lateral edge regularly arquated; posterior angles rounded; dorsal line not very obvious; basal indentations much dilated, not profound; minute longitudinal lines or wrinkles at the middle of the base, and less obvious ones on the anterior margin; elytra, striae profound, impunctured; interstitial spaces depressed; tip very 1834.] AMERICAN PHILOSOPHICAL SOCIETY. 545 obtusely sinuous; abdomen, terminal and anal segments above punctured. Length less than half an inch. This species is closely allied to the A. csenus Say, and its form is perhaps still more like that of an Amara in being more obtuse and robust. It is much larger and more rounded behind. It was taken in Mexico by William Bennett, and was presented to me by Mr. Maclure. 2. A. BALTIMORIENSIS Say, (Harpalus) Trans. Amer. Philos. Soc.; Dej. Spec.-A very bad name, as the species is found as well in Indiana as in Baltimore; but it is a specific name, and therefore unchangeable. 3. A. RUSTICUS Say, (Harpalus) Trans. Amer. Philos. Soc.; Dej. Spec.; A. merulus? Germar. [A. merula is quite different.-LEc.] 4. A. CANUS Say, (Harpalus) Trans. Amer. Philos. Soc.; Dejean Spec. 5. A. AGRICOLUS Say, (Harpalus) Trans. Amer. Philos. Soc.; Dej. Spec. [432] 6. A. CARBONARIUS Say, (Harpalus) Trans. Amer. Phil. Soc. 7. A. LLTUS? Dej.-An insect is found in this vicinity which I have referred, but very doubtfully, to the laetus. Its characters correspond to the description, but if it be indeed the same a very important character must be added. My specimen is a male. The alternate interstitial spaces are cupreous, and the remaining part is green. It has a very much dilated, slight indentation behind the middle of the elytra, and a smaller one nearer the tip. OPHONUS, Zeigl. O. INTERSTITIALIS Say, (Feronia) Trans. Amer. Philos. Soc. Since described by Dejean under the name of Harpalus obscuripennis. HARPALUS Latr. 1. H. VULPECULUS Say, Trans. Amer. Philos. Soc.-Since described by Dejean under the name of nigripennis. It differs however from his description, by having an impressed puncture 1834.] 35 546 TRANSACTIONS OF THE on the third elytral stria; but I have a variety altogether destitute of the puncture. 2. H. VIRIDIS Say, Trans. Amer. Philos. Soc.-Subsequently described by Dejean under the name of assimilis. 3. H. MEXICANUS Dej. Sp. Gen.-This appears to be a common species. Mr. Maclure has recently sent me specimens by Wm. Bennett, and I obtained it also in that country. 4. H. IRICOLOR Say, has been recently described by Dejean under the name of dichrous. I obtained a specimen formerly, with a collection I purchased in New York as having been received from New Haven, and I have since found two in Indiana. [No species of the name cited is to be found in Say's writings. -LEO.] 5. H. TERMINATUS Say, (Feronia) Trans. Amer. Philos. Soc. Dejean, Sp. Gen., refers this species to the present genus. The anterior pairs of the tarsi of the male are clothed with dense hairs beneath. 6. HI. AMPUTATUS.-Elytra greenish, truncate at tip. Inhabits N. W. Territory. Body blackish; head with the frontal lines rather slightly indented; antennae, palpi, tibiae and tarsi honey-yellow, the tibiae darkest; thorax with the basal angles rounded; edge obscure rufous; dorsal line [433] obsolete, or slightly impressed; basal lines substituted by dilated, slightly indented spaces, in which are numerous small punctures; posterior lateral margin with small punctures; basal margin obsoletely tinted with greenish; elytra with impunctured striae, more or less green, sometimes bright green; suture, outer and terminal edges obscure rufous; tip widely and somewhat obliquely truncate. Length less than two-fifths of an inch. Var. a. Elytra reddish brown, with hardly any tint of green Readily distinguished by the truncated appearance of the tip of the elytra, from H. eneus F., which has the elytra decidedly sinuate at tip, and even abruptly so. 7. H. OCREATUS.-Black green; impunctured; feet pale yellowish. Inhabits Mexico. [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 547 Body very dark green, impunctured; head black, with hardly any appearance of green; antennae honey-yellow, the joints, excepting the first and second, with darker centres; palpi and base of the mandibles honey-yellow; labrum with a slight projecting angle in the middle of the emargination; thorax blackish green, hardly narrower at base; dorsal line indistinct, but more obvious in the middle; basal indentations dilated not profound; lateral edge dull honey-yellow; posterior angles obtuse; elytra obviously tinged with green; a little wider at base than the thorax; striae very slender, impunctured; interstitial spaces flat, third space with a puncture at three-fourths the length from the base; lateral edge near the tip and suture near the tip obscurely piceous; tip deeply and rather obtusely sinuous; beneath black, the greenish tinge hardly perceptible; feet yellowish; tarsi rather darker; first joint of the anteriors of the male somewhat smaller than the second; these tarsi have beneath close set hairs. Length over seven-twentieths of an inch. This species has almost the Amara like form of some species of Anisodactylus, in which genus I should have placed the species but for the angle in the emargination of the mentum. It is very closely allied to terminatus Say, but is rather more robust, the head and thorax are differently colored, the posterior lateral margin is more depressed, &c. [434] It must resemble closely H. agilis Dej, of which it may possibly be a variety. It was obtained by William Bennett, and presented to me by Mr. Maclure. STENOLOPHUS Meg., Dej. S. CINCTUS.-Dark piceous; margin and suture of the elytra honey-yellow; feet pale yellow. Inhabits Massachusetts. Body blackish piceous; antenna fuscous, three basal joints and labrum honey-yellow; mandibles piceous, black at tip; thorax rather convex, a little narrowed behind gradually; base rectilinear, each side a little arquated to the posterior angles, which are obvious but almost rounded; lateral edge but slightly arquated, nearly rectilinear behind the middle, near the posterior angle hardly perceptibly excurved; dorsal line very distinct 1834.] 548 TRANSACTIONS OF THE anterior transverse line distinct, obtusely arquated; basal lines so much dilated as to extend to the lateral angle, including a few sparse, profound punctures; base and tip and exterior edge paler piceous; elytra with impunctured, deeply indented striae, less profound towards the margin; rudimental striae none; sutural interstitial space paler piceous; dilated exterior margin honeyyellow; lateral series of punctures, with the exception of a small one, widely interrupted in the middle; feet pale yellow. Length less than three-twentieths of an inch. For this insect I am indebted to Dr. Harris. On a cursory examination I considered it identical with S. ochropezus Say, notwithstanding its great inferiority of size, which may at once distinguish it. The thoracic posterior angles are much more obtusely rounded in that species, the punctures of the basal lines are much more numerous and extend nearly to the basal middle, the dorsal line is obsolete, &c. [This is a variety of Bradycellus rupestris ante, 505.-LEc.] ACUPALPUS Latr., Dej. 1. A. PARTIARIUS Say, (Trechus) Trans. Amer. Philos. Soc.Since described by Dejean under the name of testaceus. I have recently received a specimen from Louisiana, for which I am indebted to Mr. J. Barabino. [Ante, 504.] [435] 2. A.CONJUNCTUS Say, (Trechus) Trans. Amer. Philos. Soc.Since described by Dejean under the name of misellus. 3. A; RUPESTRIS Say, (Trechus) Trans. Amer. Philos. Soc.Since described by Dejean under the name of tantillus. [Ante, 505.] 4. A. DEBILIPES.-Piceous black; base of the antennae and feet pale yellowish. Inhabits Indiana. Body very dark piceous, almost black; head impunctured; between the antenna on each side a dilated very obvious indentation; antennae brown, three basal joints yellowish; mandibles at tip black; palpi yellowish, rather pale; thorax widest before the middle, gradually narrowed, by a regular arquation of the edge, to the base; basal angle obtusely rounded; anterior and [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 549 posterior margins on their middles obviously piceous; dorsal line well impressed, very distinct, not abbreviated; anterior transverse line obvious in all its length, arquated; basal lines dilated, orbicular, obvious, with a few, small, sparse punctures within or rather near the base; elytra with slender striae; interstitial spaces flat, third with a puncture between the middle and tip; marginal and sutural edges towards their tips piceous; rudimental stria none, but instead of it is a puncture at base of the second stria; feet pale yellow. Length less than three-twentieths of an inch. [Unknown to me.-LEc.] 5. A. OBSOLETUS.-Dark piceous; striae of the elytra obsolete. Inhabits Mexico. Body dark piceous, impunctured; antennae, labrum and palpi honey-yellow; thorax with pale piceous anterior and basal margins; lateral margin with eight or nine hairs; dorsal line almost obsolete; basal impressions dilated, oval; elytra with the basal, exterior and apical margins paler piceous; striae obsolete, excepting the subsutural and lateral ones; a series of large punctures behind the middle of the exterior margin; feet pale honey-yellow. Length one-fifth of an inch. * [436] BEMBIDIUM Latr. 1. B. INAQUALE Say, Journ. Acad. Nat. Sc. Vol. 3, p. 151.Very closely allied to paludosum, Panz., and may possibly be only a variety of that European species, nevertheless it is somewhat smaller, the thoracic impressed lines are more distinct, particularly the transverse basal one, and the striae of the elytra are more dilated and the punctures more obvious. As it is the * Count Dejean has done me the favor to send me the four volumes of his "Species des Coleopteres," which have now been published. This work is indispensable to all those who study the Coleoptera. It contains the descriptions of a great number of North American species, and has greatly facilitated my examination of the insects described in the preceding part of this paper. 1834.] 550 TRANSACTIONS OF THE analogue of paludosun, it belongs to the genns Bembidium, as at present restricted. 2. B. HONESTUM Say, Trans. Amer. Philos. Soc.-When describing this species I stated that the elytral striae are " not obsolete behind." This may be corrected by substituting the phrase " almost obsolete behind." The punctures of the stria are large and obvious at base, but are obsolete, or rather entirely wanting on the posterior third. The exterior margin and epipleura are blackish green. 3. B. PUNCTATOSTRIATUM Say, Trans. Amer. Philos. Soc.The posterior angles of the thorax are very acute; the basal and anterior margins are slightly longitudinally wrinkled, the dorsal line transversely wrinkled on its margins, and the basal lines are obliquely wrinkled; the sides of the thorax are also somewhat undulatedly wrinkled. The third interstitial space is much wider than the others, and the posterior punctures is much nearer to the anterior puncture than to the tips. 4. B. LAEVIGATUM Say, Trans. Amer. Philos. Soc.-The basal thoracic lines are much dilated. 5. B. COXENDIX Say, Journ. Acad. Nat. Sc. 3, 151.-Antennae with three basal joints and base of the fourth pale yellowish; palpi (in the dry state) pale yellowish, dusky at tip; face with an impressed line each side; vertex longitudinally wrinkled; surface somewhat wrinkled transversely and at base longitudinally; basal indentations dilated, minutely rugose; elytra with the anterior and posterior discs obscurely testaceous. I am not so fortunate as to possess definitions of the several genera into which this genus, as originally constructed by Latreille, has been recently divided; but I rather think, by analogy, that the present species is a Peryphus Meg. [This variety, if it be so, was previously described by Dejean as B. nitidulum.-LEc.] [437] 6. B. DORSALE Say, Trans. Amer. Philos. Soc.-This species varies considerably. The dorsal line is more or less obvious, and sometimes rather deeply impressed. In one specimen is a slight appearance of puncturing on the middle of the thoracic base. The thorax is more or less engraved with undulated lines, which [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 561 are sometimes almost imperceptible. Perhaps a Notaphus of Meg. 7. B. TETRACOLUM Say, Trans. Amer. Philos. Soc.-Allied most closely to Peryphus rupestris Illig., than which it is somewhat larger. 8. B. POSTREMUM.-Blackish; elytra brownish, obscure yellowish at tip. Inhabits Pennsylvania. Head greenish-black; face with an indented line each side, between which and the eye is a large orbicular puncture; antennae fuscous, piceous at base; palpi dark honey-yellow; mandibles at base piceous; thorax bronze black, very obscurely piceous on the middle of the anterior margin; contracted behind; posterior angles obtuse angular; dorsal line impressed; anterior transverse very obvious, arquated; basal line dilated, suborbicular; basal margin with slight inequalities or punctures between the basal lines; a slightly elevated line on the lateral margin, forming a groove with the slightly elevated edge, more obvious near the angle, and becoming obsolete before; elytra very dark honey-yellow or brownish, much paler at tip; striae somewhat dilated, and with dilated, quadrate, profound punctures; strie more slightly impressed towards the tip, and the punctures obsolete; third interstitial space a little broader than the others, with a puncture before the middle and another equidistant behind the middle, both nearer the third stria; wings perfect; beneath black; abdomen tinged with piceous; feet pale yellowish. Length one-fifth of an inch. Resembles tetracolum Say, but the elytral striae are more dilated, the punctures of the third interstitial space are more anterior, and the posterior pale spot of the elytra is quite terminal. Belongs to the genus Peryphus Meg. [Afterwards described as Peryphus scopulinus Kirby.-LEC.] 9. B. NIGRUM Say, Trans. Amer. Philos. Soc.-The striae are so much dilated that no punctures are visible on the third interstitial space. 10. B. SIGILLARE.-Cupreous; elytra with two dilated, subquadrate green spots on each; fourth stria rectilinear. Inhabits Missouri. [438] 1834.] 552 TRANSACTIONS OF THE Body bronzed cupreous, somewhat polished; head greenish each side and before; an impressed line near the eye, between which and the eye is a dilated puncture; antennae blackish-green, first joint beneath piceous; palpi black piceous, tinged with green; thorax rather broader behind than before; posterior angles acute; lateral edge excurved behind; dorsal line distinct, but not deeply impressed, not abbreviated; basal lines dilated; elytra with punctured striae, punctures almost obsolete towards the tip; fourth stria not undulated; third interstitial space as broad as the seventh and with two dilated impressed subquadrate spots, green, and including each a puncture, and placed near the middle; beneath dark green; feet blackish green; tibiae and base of the thighs piceous greenish. Length less than one-fourth of an inch. I obtained this species during the journey of Major Long's party to the Rocky Mountains. It is very distinct from the inequale Say, which it somewhat resembles by many characters. That of the rectilinear fourth stria of the elytra is an obvious one. [Apparently not different from B. punctato-striatum. —LEC.] 11. B. SEMIFASCIATUM.-Greenish-black; elytra each with four spots; third interstitial space two-punctured. Inhabits Mexico. Head metallic green; two impressed lines between the antenna very distinct; antennae dull piceous; labrum and palpi blackish; thorax metallic green with a slight tinge of cupreous; dorsal line slender; lateral indentation of the base obvious, bounded near the angle by a carinate, abbreviated line; lateral edge with a hair rather before the middle, and another at the posterior angle, not arquated from behind the middle to the basal angle; elytra, blackish, with a slight cupreous tinge, with well impressed punctured strive, distinct to the tip; interstitial lines depressed, plane; third line with a transverse indentation before the middle and a less distinct one behind the middle; a dull honeyyellow dot on the middle of the base, a semifascia before the middle, another behind the middle, and an irregular apical spot; beneath black; feet piceous. Length over three-twentieths of an inch. [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 553 Resembles N. ustulatus Fabr., and therefore probably is a Notaphus Meg. 12. B. OPPOSITUM Say.-Resembles the maculatum Gyll., and probably [439] belongs to Lopha. The sutural stria is impressed from the middle of the tip. It is somewhat bronzed. 13. B. EPHIPPIATUM.-Pale testaceous; elytra with punctured striae and a large common blackish spot. Inhabits Indiana. Body pale testaceous or honey-yellow; antenna paler than the head, a little darker towards the tip; palpi color of the antennae; thorax widest before the middle, gradually contracting by an almost rectilinear, but hardly perceptible concave line, to the basal angle, which is rectangular; dorsal line but slightly impressed, obsolete before; basal lines hardly distinct from the depressed basal margin, which is minutely wrinkled; elytra with impressed, punctured strive, obsolete at tip; seventh stria wanting; third interstitial line with two small orbicular punctures, one before the middle and the other a little behind the middle; a very large common blackish spot on the middle, within which the suture is reddish-brown; suture behind the spot blackish; a small, obsolete blackish spot at the base each side of the scutel; feet pale yellowish. Length one-tenth of an inch. At first view it resembles proximumn Say, both as respects size and color, but it may be distinguished by many characters, of which the punctured strie is one. [The type of Pericompsus Lec.-LEc.] 14. B. TRIPUNCTATUM.-Piceous; elytra with five abbreviated striae; thorax three-punctured between the dilated basal lines. Inhabits Indiana. Body piceous; head and thorax darker; antennae light brownish, paler at base; palpi pale yellowish; thorax with the dorsal line distinct, terminating on the basal margin in an impressed puncture, on each side of which is another rather smaller puncture; basal lines much dilated, deeply undulating the posterior edge of the thorax; elytra with about five rather obtuse strive, not extending to the tip or base; sides destitute of striae 1834.] 554 TRANSACTIONS OF THE excepting a marginal interrupted one; an indentation each side of the scutel and on the humerus. Length four-fifths of an inch. The dilated basal thoracic lines deeply indenting the posterior edge, together with the three intervening punctures will readily distinguish [440] this species. At first view it resembles B. fiavicaude Say, but is more highly polished. [Belongs to Tachys.-LEC.] 15. B. INCuRVUM.-Piceous; elytra with a honey-yellow vitta from the humerus, a little dilated at its termination before the tip. Inhabits Indiana. Body piceous; head blackish-piceous; antennas honey-yellow; thorax a little contracted gradually to the base; dorsal line slender and slightly impressed; basal transverse line deeply impressed, with numerous minute wrinkles; basal lines dilated, undulating the posterior edge; elytra polished, with a profoundly impressed, somewhat dilated, simple, sutural stritc; the second stria obsolete; an interrupted stria on the lateral margin; a dilated indentation each side of the scutel, and a smaller one on the humerus; a dilated vitta from the humerus, near its tip, curves a little towards the suture; and is in that part a little more dilated; venter black piceous; feet honey-yellow. Length over four-fiftieths of an inch. Resembles the preceding, but is destitute of the three punctures at the base of the thorax, and with that species belongs probably to Peryphus Meg. Of the genus Bembidiunm Latr. I have twenty-two described species natives of North America. [Also a Tachys.-LEc.] DYTISCUS Linn. Latr. 1. D. CONFLUENS.-Blackish-brown margined with honey-yellow; four exterior grooves of the elytra nearly or quite geminately confluent at tip. Inhabits Maine. Body blackish-brown with a green reflection, covered above with minute punctures; head dark green, with a frontal rufous [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 555 semicircle, divaricating at its anterior tips into a more dilated spot between the canthus of the eye and the nasus, which is yellowish, excepting the anterior edge; above the nasus a transverse impressed line, ending each side in a more dilated spot; thorax margined all around with honey-yellow; anterior margin with a somewhat double line, of which the posterior one is obsolete; posterior margin with the yellow color, near the lateral angles, contracted or almost obsolete; elytra with [441] about ten grooves which extend three-fourths the distance to the tip, the four exterior interstitial spaces confluent, or nearly so, by twos; lateral margin not dilated, honey-yellow with an obsolete branch towards the tip, proceeding obliquely to the suture; beneath honey-yellow, sutures more or less margined with black. Length one inch and a half. This fine large species was sent me by Dr. E. Holmes of the Gardiner Lyceum, together with many other interesting objects of natural history. It is more than double the size of D. fasciventris Say, and may also be distinguished from that species by the confluent termination of the four exterior grooves of the elytra in the female. It is less dilated than the latissimus Fabr., and is destitute of the wide elytral margin. [Afterwards described as D. Ooligbukii Kirby.-LEC.] 2. D. HABILIS.-Blackish-olivaceous; thorax and elytra margined with yellow; elytra with three series of punctures. Inhabits Mexico. Body oval; above with minute, distant punctures; head with a frontal rufous angular line or semicircle, divaricating at its anterior tips into a more dilated spot between the canthus of the eye and the nasus, which is yellow, excepting the anterior edge; above the nasus on each side is an orbicular, punctured indentation; front each side at the eye with an indented, punctured line; thorax with a broad yellow margin; dorsal line acute, distinct, not extending upon the margins; a line of impressed punctures on the anterior margin interrupted in the middle; lateral margin not at all depressed; scutel honey-yellow on the posterior submargin; elytra with three series of impressed punctures; the exterior series less distinct; general puncturation near the tip much larger and more obvious; posterior margin yellowish with 1834.] 556 TRANSACTIONS OF THE an obsolete undulated branch proceeding obliquely towards the tip; beneath varied with blackish, piceous and yellow. Length one inch. A male of this species was taken by William Bennett in the river beyond Vera Cruz, and, together with the two following, presented to me by Mr. William Maclure. It is allied to the D. marginalis, F., but that species in form approaches the ovate; the present also is much smaller and oval. [442] 3. D. BIMARGINATUS.-Black; head and thoraxrufous; elytra with a yellow vitta on the lateral submargin. Inhabits Louisiana. Body oval, blackish; head honey-yellow, posteriorly black: palpi and antennae yellowish; thorax honey-yellow; posterior margin black, which is more dilated on the middle half; elytra with three series of distant slight punctures; on the lateral submargin a yellow vitta, which passes a short distance on the humeral base, and posteriorly diverges a little from the margin, attenuates, and does not reach the tip; margin and epipleura dull rufous, not reaching the tip; beneath piceous-black; pectus and anterior feet yellowish; terminal joints of the tarsi piceous; posterior pairs of feet piceous; intermediate thighs dull yellow; venter each side with obsolete piceous spots. Length less than half an inch. For this species I am indebted to the politeness of Mr. J. Barabino, who sent it to me from New Orleans. [Afterwards described as Hydaticus fulvicollis Aube.-LEC. COLYMBETES Clairv. 1. C. TAENIOLIS Say, (Dytiscus) Trans. Amer. Philos. Soc.-In Mexico is a variety, being smaller. The specimen is a male, and proves that the species must be placed in the present genus. It was taken in the river beyond Vera Cruz. 2. C. GUTTICOLLIS.-Thorax yellowish with four black spots head black, anteriorly and band of the vertex yellow. Inhabits Mexico. Head black; a transverse yellowish band between the nearest points of the eyes; a dilated yellowish triangle occupying all the anterior part of the head, the apex being at the middle of the [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 557 face; antennae and palpi honey-yellow, dusky at their tips; thorax honey-yellow, anterior margin blackish; posterior margin dusky; four large black spots in a transverse series, the two intermediate ones nearer together; elytrahoney-yellow with minute black points more or less crowded so as to give a dusky, sometimes almost blackish appearance; lateral margin destitute of black punctures, but with a black line on the posterior curvature; at base, particularly the humeral base, destitute of the black punctures; three regular series of small black dots; beneath black; [443] pectus, feet and epipleura yellowish. Length over two-fifths of an inch. Taken in the river beyond Vera Cruz. It is about the size of the C. adspersus F., which it considerably resembles, if we except the thoracic black dots. 3. C. FENESTRALIS Say, Trans. Amer. Philos. Soc.-Since de. scribed by Germar under the name of biguttulus Sp. Insect., p. 29. 4. C. INTERROGATUS Fabr., Syst. Eleut. C. venustus Say, Trans. Amer. Philos. Soc.-When describing this species I stated that it " may probably prove to be the interrogatus of Fabricius." Of this I have now so little doubt, that I venture to reject the name I then provisionally gave, and to adopt the true or anterior name. Dejean is also of the opinion that it is the interrogatus F. Sturm, however, considers it distinct. [Ante, 512. Belongs to Coptotomus.-LEC.] COPTOTOMUS Say. Tarsi distinctly five-jointed; basal joints of the anterior pair of the male subequally dilated or gradually tapering; posterior nails pressed together and apparently single; posterior feet natatory, base of the thighs naked; antennae eleven-jointed, at least as long as the head and thorax, filiform; scutel distinct; terminal joint of the palpi somewhat compressed at tip and emarginate. Obs. This genus differs from other genera of this family in the character of the emarginate palpi, excepting the genus Noterus, which is destitute of an apparent scutel and the emargina1834.] 558 TRANSACTIONS OF THE tion of the palpi is confined to the labial. The name is derived from the words copto, I cut, and tome, joint or articulation, in allusion to the form of the palpi. C. SERRIPALPIS,-Yellowish; elytra brownish varied with whitish. Inhabits Mexico. Body oblong-oval, honey-yellow; head black on the posterior margin; labial palpi with the penultimate joint crenate or bituberculate before; thorax on the middle of the anterior and posterior margins broadly black; elytra brownish, with very numerrous, minute honey-yellow [444] points; two very slightly impressed striae, with punctures hardly distinguishable from minute inequalities of the surface, and an indistinct part of a series of hardly impressed punctures each side; from the base near the scutel proceeds a whitish broad vitta one-fifth of the length of the elytra, bifid at tip; from the humeral base to the tip, proceeds a broad, interrupted and somewhat irregular vitta also whitish; venter piceous. Length less than three-tenths of an inch. This insect was obtained on the estate of the Conde del Regla about 10 leagues N. E. of the city of Mexico, by William Bennett, and presented to me by Mr. William Maclure. It cannot be the Dytiscus circumscriptus, Germ., which is "breviter ovali." LACCOPHILUS Leach. L. MACULOSUS Say, Trans. Amer. Philos. Soc. —Since described, by Germar, also under the name of maculosus, Sp. Gen., p. 30. HYPHYDRUS Latr. H. PUNCTATUS Say, (Laccophilus) Journal of the Acad. Nat. Science. [Ante, 1, 178. Belongs to IHydroporus.-LEC.] HYDROPORUS Clairv. 1. H. BIFIDnS.-Elytra with a subsutural, impressed, punctured stria. Inhabits Mexico. Body black; head with much dilated indentations between the eyes; a longitudinal honey-yellow line, more dilated before; an[Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 559 tennae yellowish, dusky at tip; thorax with a submarginal honeyyellow band before having three processes, one in the middle, and one, rather more dilated, on the lateral margin, not reaching the posterior edge; elytra with a very distinct, punctured, impressed, subsutural stria, and about two other hardly obvious ones near the middle: bifid yellowish lines at base near the tip; feet dark honey-yellow. Length less than one-fifth of an inch. This species and the two following were taken by William Bennett in a small river beyond Vera Cruz, and were presented to me by Mr. Maclure. 2. HI. NUDATUS.-Beneath black; feet yellowish; thorax and head [445] on their disks yellowish; elytra blackish with lines and tip yellowish. Inhabits Mexico. Head with numerous deep punctures, honey-yellow on the disk, blackish each side and behind; antennae pale yellowish, dusky at tip; thorax with numerous deep punctures, more dense and obvious towards the base, honey-yellow, anterior and posterior margins dusky; elytra brownish black, with numerous, profound, approximate punctures; striae not distinct, but traces of two may be discovered near the base; about four more or less confluent lines at base, irregular ones each side and tip dull whitish-yellow; beneath black, pectus yellow; feet honey-yellow. Length over three-twentieths of an inch. 3. H. SERICATUTS.-Yellowish; elytra blackish with abbreviated lines and margin dull yellowish. Inhabits Mexico. Dull honey-yellow, somewhat sericeous above; head with a dilated, not profound, indentation each side, and numerous small punctures; antennae also honey-yellow; thorax a little dusky on the anterior and posterior margins, with numerous, small, slightly impressed punctures; elytra dark brownish, almost black, more obviously sericeous than the thorax; striae none; lateral margin dull honey, dilated near the base into a band of about four abbreviated, unequal, longitudinal lines, excepting the inner one, not reaching the base, another somewhat similar band behind the middle and slight double dilatation at tip of the same color, Length less than one-fifth of an inch. 1834.] 560 TRANSACTIONS OF THE This species was obtained in the same locality with the preceding. It is closely allied to undulatus Say, but is more sericeous, the elytral lines are not so dilated or confluent, &c. 4. H. INTERRUPTUS.-Black; feet, frontal line, three thoracic spots, and many elytral abbreviated lines yellowish. Inhabits Pennsylvania. Body blackish; head with a slight piceous tinge; an anterior honey-yellow triangular spot, the superior angle near the vertex; antennae pale yellow, dusky at tip; thorax obsoletely tinged with piceous; a lateral irregular spot, and a dorsal, longitudinal, somewhat fusiform one, honey-yellow; elytra with an oblique impressed line at the inner angles, a slightly impressed subsutural striae, and an obsolete one on each side of the middle; lateral margin with two slender oblique branches before [446] the middle, slender subsutural vitta exterior to the stria, interrupted line or two along the middle, a small spot behind near the middle and about two transverse series or two or three short lines, dull honey-yellow; beneath black; pectus, feet and epipleura yellowish. Length over three-twentieths of an inch. [Ante, 99, 916. Identical with H. parallelus and H. catascopium.-LEC.] 5. H. DISCICOLLIS.-Reddish brown, somewhat sericeous, minutely punctured, middle of the thorax without punctures. Inhabits North-west Territory. Body entirely dark reddish brown, with minute punctures; head -; thorax with the disk impunctured, polished and a little more convex; elytra darker than the thorax, more obviously sericeous; lateral margin a little paler; spot at the tip dull yellowish; postpectus black piceous. Length three-twentieths of an inch. I obtained an individual of this species during Long's Expedition to the source of St. Peter's river, and although it is now mutilated, yet I have no hesitation in giving it as distinct from any other I am acquainted with. [Dr. Harris regarded this as the species afterwards described as H. dichrous Mels.; the description seems to me too indefinite for accurate determination.-Lec.] [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 561 HALIPLUS Latr. H. 12-PUNCTATUS Say.-Some specimens were found in Mexico, in the locality above mentioned, by William Bennett, and presented to me by Mr. William Maclure. They vary a little from those of this region in being very slightly more elongated and larger; but the spots, their arrangement and the sculpture, appear to be precisely the same. The species is therefore found over the greater part of North America east of the Rocky Mountains. NOTERUS Latr. N. BICOLOR.-Honey-yellow; elytra black, punctured. Inhabits Louisiana. Head and thorax honey-yellow; eyes black; palpi not deeply emarginate; elytra black, punctured; at tip obsoletely piceous, very obliquely and slightly truncate; acute; beneath honey-yellow, or piceous. Length one-tenth of an inch. For this species I am indebted to Mr. Barabino. [Afterwards described as Suphis gibbulus Aube. —LEc.] HYDROCANTHUS Say. [447] H. ATRIPENNIS.-Ferruginous; black. Inhabits Mexico. Head and thorax ferruginous; the former with an oblong triangular, obsolete, darker spot between the eyes, and the latter with an impressed line on the lateral submargin; elytra blueblack, immaculate, impunctured; pectus, as well as the head beneath, dull yellowish; sternum flat, at its anterior tip acute, but not prominent, dusky; postpectus blackish, dull yellow at tip; feet, intermediate and posterior pairs blackish, slightly varied with piceous. Length less than one-fifth of an inch. This is the second species of this genus; the first I published in the Trans. Amer. Philos. Soc. vol. 2, new series. The genus is allied to Noterus Latr., but the labial palpi are much more dilated, and have no appearance of emargination. 1834.] 36 562 TRANSACTIONS OF THE GYRINUS Linn. 1. G. EMARGINATUS Say, Trans. Amer. Philos. Soc.-Since described by Germar under the name of vittatus, Spec. Nov. 2. G. ANALIS Say, Trans. Amer. Philos. Soc.-Germar is of opinion that this is the same as natator F.; but on comparison, I find it to differ in many small characters, the most obvious one of which is the color of the epipleura, that of the natator being light piceous, whilst in the analis it is of a bronzed black, &c. It is no doubt a closely allied species. 3. G. OBTUSUS.-Black; feet honey-yellow; behind obtuse. Inhabits Mexico. Body black, polished; head with two indented dots between the eyes; mouth piceous; antennae piceous-black; thorax with the anterior lateral, posterior lateral and medial impressed lines very distinct; elytra obtuse behind and widely truncate; near the tip obviously depressed; punctures well impressed, in regular series, the intervals not impressed; beneath dark piceous, somewhat paler on the edges of the segments; feet and tip of the venter honey-yellow. Length over one-fifth of an inch. [448] It may be distinguished from the analis and limbatus nob., and from the natator Fabr., and marinus Gyl., in being more obtuse behind and the consequent greater truncation of the elytra. 4. G. PARCUS.-Black; feet honey-yellow. Inhabits Mexico. Body rather robust, black, highly polished; head with two indented, oblique lines between and before the eyes: thorax with the impressed lines very obvious; elytra with very distinct, well impressed series of punctures, the intervals not at all impressed tips obtusely rounded; feet honey-yellow. Length nearly one-fifth of an inch. In comparison with minutus Fabr. this species is a little longer and much more robust, more highly polished, and the impressed lines of the thorax and dots of the elytra are more profound and distinct. It is somewhat smaller than either of those I have before described, and the punctures of the elytra are, notwithstanding, larger. [Vol. TV. AMERICAN PHILOSOPHICAL SOCIETY. 563 STAPHYLINUS Linn. Gray. 1. S. EPHIPPIATUS.-Black; elytra rufous. Inhabits Mexico. Body black, polished; head with a longitudinal, impressed line between the eyes; superior orbits with three or four punctures, above these a lateral series of four or five punctures, and two or three insulated ones, and at base each side a transverse series of four or five punctures; antennae, terminal joint obliquely truncate; thorax semioval with a few scattered punctures each side, an abbreviated dorsal series of four or five punctures not extending on the posterior third of the length of the thorax; scutel densely punctured, black; elytra cinnamon-rufous, with very numerous small hairs and slightly impressed punctures; tergum a little hairy, deep blackish-blue, iridescent; palpi piceous. Length over half an inch. This and the following species belong to Family 1st of Gravenh. Monogr. [A species of Belonuchus, which I found at San Diego, California, under dead Opuntia leaves.-LEc.] 2. S. CONNEXUS.-Black; elytra and feet rufous. Inhabits Mexico. Body black, polished; head with punctured orbits and a few scattered punctures each side; palpi piceous black; a deep and wide indentation between the antennae, on each side of whith above is a single puncture; thorax with a series of about five large dorsal punctures [449] and a few scattered lateral ones; antennae cinnamon rufous, with very short hair and minute punctures; feet color of the elytra. Length over three-tenths of an inch. Resembles the preceding, but the feet are rufous, and the tergum is simply black; the clypeus is a little advanced in the middle. Fam. 1st. 3. S. IRACUNDUS.-Black; elytra rufous; dorsal thoracic punctures three. Inhabits Indiana. Head with an orbital puncture and three occipital punctures, of 1834.] 564 TRANSACTIONS OF THE which the anterior one is near the eye and larger; antenne piceous; flagellum fuscous; the joints a little broader than long; terminal joint with the apex rather prominent; mouth dull piceous; occiput with numerous small punctures; thorax with three small dorsal punctures, not reaching the middle of the length; lateral punctures about five, the second and fifth placed a little above the straight line; marginal punctures two or three; towards the anterior angles are numerous obsolete discoidal punctures, visible with a strong power; scutel glabrous, black; elytra rufous, densely punctured, with short prostrate hairs; tergum at tip slightly tinged with piceous; tibia, tarsi and posterior margins of the ventral segments piceous. Length over seven-twentieths of an inch. This species seems to have some relation to the laticollis Grav., but the thorax is less dilated, the lateral puncturations are much more numerous; the elytra are of a different color, &c. Fam. 1st. [Belongs to Quedius, considered by Erichson as a variety of Q. fulgidus.-LEc.] 4. S. BLANDUS Grav.-The reddish color of this handsome insect is of a tint approaching sanguineous. Gravenhorst had probably old specimens, of which the color had faded. He describes the feet as " rufo testacei," but in my specimens the tibiae and tarsi are piceous. He says " coleoptera depilia," but my specimens certainly have prostrate hairs on the elytra as well as on the scutel. If this is not in reality Gravenhorst's species, it differs in the exceptions I have stated, and can be called lstulus. Fam. 1st. [Belongs to Philonthus.-LEc.] 5. S. INVERSUS.-Black; dorsal thoracic punctures three. Inhabits Indiana. [ 450] Head with an orbital puncture, and another above the eye; mouth and antennae piceous; joints of the flagellum rather transverse, point of the last joint not prominent; thorax a little narrowed before; dorsal punctures three, the series nearer each other at tip than near the head and hardly reaching the middle of the length; lateral two remote, with a single puncture midway between the second and the dorsal series; marginal one; scutel glabrous, impunctured; elytra on the disk with but very few hairs; [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 565 punctures few, distant, almost to be traced into obsolete series; laterally with small punctures, furnishing short hairs; tergum in some lights slightly iridescent towards the tip; beneath very obscurely piceous; feet piceous. Length nearly three-tenths of an inch. The two dorsal series of punctures in other species diverge a little posteriorly, but in the present species they evidently approach towards their posterior termination. Fam. lst. [Considered by Erichson as Quedius capucinus.-LEc.] 6. S. DIMIDIATUS.-Blackish; elytra and margins of abdominal segments reddish-brown; feet pale. Inhabits United States. Body piceous black; head oval black, with two punctures between the eyes, two punctures on the posterior canthus and five or six behind; mouth piceous; antennae, first and second joints and part of the third yellowish, or reddish-brown, more or less pale; thorax black, with a tinge of piceous; dorsal series five, and an equal puncture more distant than the others, near the anterior margin, and a little exterior to the line of the series; lateral punctures two, or in a much curved line three; marginal two; elytra reddish-brown, with prostrate hairs; abdomen, segments reddish-brown on their posterior margins; feet yellowish, or pale reddish-brown. Length nearly one-fifth of an inch. I have found specimens in Pennsylvania and Missouri. The reddish-brown color of the posterior margins of the abdomen is obvious beneath. Fam. 1st. [A Philonthus, probably the same as the European P. ventralis. -LEC.] 7. S. TACHINIFORMIS.-Black; thorax sanguineous; feet piceous. Inhabits Mexico. Body black; head rather small, oval, polished; with two punctures [451] each side between the eyes, and eight or ten behind the eyes; antennae fuscous, dark piceous at base; mouth piceous; thorax sanguineous; dorsal punctures five, distant from the base and tip; lateral two; marginal three, placed triangularly; elytra with a slight, obscure metallic tinge, with numerous minute pune1834.] 566 TRANSACTIONS OF THE tures furnishing prostrate hairs; feet honey-yellow; posterior pair and tibise and tarsi darker. Length one-fourth of an inch. Fam. 1st. 8. S. APICIALIS.-Black; terminal joint of the antennae and abdomen towards the tip, rufous. Inhabits the United States. Body black, polished, punctured; head with numerous punctures, smooth in the middle; antennae with the terminal joint yellowish-rufous; mandibles piceous; palpi with the terminal joint rather long, slender, piceous; thorax with numerous not crowded punctures, with a longitudinal, dilated, glabrous line; scutel, punctures minute, dense; elytra with a subsutural line and numerous small punctures furnishing hairs; abdomen towards the tip dull rufous; feet piceous-black. Length nearly two-fifths of an inch. Fam. 3d. [Afterwards described as Philonthus hnematurus Er.-LEc.] 9. S. CYANIPENNIS Fabr.-The allied species of the United States was considered by Gravenhorst as a variety only of the European species. I have not at present in my collection the true cyanipennis of Europe to compare, but as Gravenhorst mentions a difference in the size of the head, it may yet prove to be a distinct species, and, if so, the name proposed by Knoch, S. cyanop' terus, will be an appropriate one. Fam 1st. [Also a Philonthus.-LEC.] 10. S. VIDUATUS F.-This name has the priority over that of maculosus Gray. Belongs to Family 4. It is singular that Gravenhorst, in his revised work the " Monographia," quotes the proper name of this insect and yet retains the synonym of maculosus as the true name, although it was given by himself a year after the Fabrician name. 11. S. VIOLACEUS Grav. —This species is subject to vary considerably; the "linea media longitudinali laevi" of the head is very commonly obliterated by punctures, and there exists a variety, of which the elytra are tinged with greenish, or are dusky brassy. Belongs to Fam. 3. 12. S. UJMBRATILIS Grav.-My specimens, five in number, have about [452] five punctures in the dorsal series, neither of [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 567 them has four only as stated in the description. Belongs to Fam. 1st. 13. S. ATER Grav.-In my cabinet I find that I formerly placed this species under the genus Astrapteus Grav., from the circumstance that the terminal joints of the palpi are more dilated than in any other species of Staphylinus, that I am acquainted with. The terminal joint of the maxillary palpi, is not longer than the penultimate one, and the diameter is nearly, if not quite as great; the terminal joint of the labial palpi is very obviously, dilated, oval, and its transverse diameter is nearly double that of the last joint of the maxillaries. Still, however, as neither of these joints can be called securiform, agreeably to the essential characters of Astrapaeus, we must agree with Gravenhorst, and return the species to his third family of Staphylinus, from which it certainly differs in the characters above stated. [Belongs to Ocypus.-LEC.] XANTHOLINUS Dahl. 1. X. EMMESUS Grav., Coleopt. Micropt. 176, belongs to this genus. It is subject to vary in its coloring; the abdomen is often piceous, and sometimes even still paler. 2. X. CEPHALUS.-Black; antenna reddish-brown; elytra and feet honey-yellow. Inhabits Virginia. Body black, polished; head elongated, sides parallel, punctured; punctures numerous and larger each side, excepting immediately the line behind the eye obsolete on the longitudinal middle; a larger puncture each side at base; and a slight longitudinal indentation on the basal margin; thorax as wide as the head anteriorly, becoming gradually a little narrower to the base; a dorsal series of five or six punctures; lateral four or five punctures; on the anterior termination of this series a much dilated slight indentatiop; marginal puncture one; basal edge each side and lateral edge with a series of punctures; elytra honey-yellow, irregularly not profoundly punctured; pectus rufous; feet honey-yellow; abdomen piceous black. Length one-fourth of an inch. 1834.] 568 TRANSACTIONS OF THE The head is large, longer than the thorax. I obtained it on Chinquoteage Island. [Afterwards described as Gyrohypnus assinilis Kirby, G. consentaneus Nordmann: X. Kiesenwetteri Sachse, Ent. Zeit. 1852, 126 does not appear to differ.-LEC.] [453] 3. X. HAMATUS.-Piceous; antennae, elytra and feet yellowish. Inhabits the United States. Head piceous-black, ovate, with sparse, profound punctures, wanting on the longitudinal middle, and immediately in a line behind the eye; antennae reddish-brown, paler at base; palpi pale reddish-brown; thorax rufo-piceous, not distinctly contracted behind; dorsal punctures about ten, with an anterior, nearly parallel, exterior series of about four; lateral series ten or twelve punctured, extending to the locality of the posterior angle, and at its anterior extremity curved outward and backward with four or five additional punctures; elytra honey-yellow, sparsely and irregularly punctured; a somewhat elevated line on the sutural submargin; feet dark honey-yellow. Length about one-fourth of an inch. Remarkable for the number of punctures in the thoracic series. [Afterwards described by Erichson as X. obscurus.-LEC.] LATHROBIUM Grav. 1. L. SIMILIPENNE.-Black; members rufous or yellowish. Inhabits Mexico. Body black, polished, hairy, densely punctured,; antennae reddish-brown, first and second joints rufous; labrum and palpi piceous; thorax longer than broad, with a longitudinal glabrous line in the middle and, a glabrous basal margin; elytra, terminal edge piceous; tergum with more minute punctures; more hairy at tip; feet honey yellow; thighs pale yellow. Length two-fifths of an inch. Like most of the species of this genus, the middle of the thorax is destitute of punctures; in this character it also agrees with Staphylinus violaceus Grav. 2. L. ARMATUM.-Anterior thighs dilated and angulated beneath. Inhabits Indiana. [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 569 Body black, punctured; antennae piceous; first joint obconic, not longer than the second and third together, which are equal; 4-10 joints moniliform; last joint ovate acute; palpi pale piceous; terminal joint minute, that of the labial longer; thorax oblongquadrate; angles rounded; glabrous line none; elytra black-piceous, punctures not [454] deeply impressed; sutural striae distinct; feet rufous; thighs robust, particularly the anterior, which have a prominent angle beneath near the tip; tibiae a little dilated and compressed, obliquely truncate at tip; anterior pair with an obtuse sinus on the inner side; tarsi, first joint not longer than the second; penultimate joint a little lobed beneath. Length about seven-twentieths of an inch. I have obtained but one specimen, which is a male. The above description will show that it differs much from any known species. [Unknown to me.-LEC.] 3. L. CINCTUM.-Black, punctured; antennae and mouth piceous; feet yellowish; posterior margins of the segments of the abdomen rufous. Inhabits Missouri. Body black, punctured, hairy; head above, punctures dense, distinct, profound, furnishing hair; on the front sparse, remote; antennae pale piceous, first joint nearly one third of the entire length, third joint rather longer than the second and with the others obconic, two terminal ones subglobular; labrum very short at tip, punctured and setous, emarginate in the middle; mandibles piceous, prominent, strongly dentate in the middle; palpi, maxillary prominent, pale piceous, terminal joint conic acute, as large at base as the preceding joint, labial pale testaceous, minute, throat with an impressed convex line; thorax oblong, not wider than the head, punctures numerous, profound, furnishing hairs, angles rounded; scutel impunctured, elytra, punctures somewhat transversely confluent, a little hairy; feet testaceous, thighs paler, anterior thighs near the tip abruptly narrowed beneath, coxae piceous; pectus impunctured; postpectus and abdomen densely and minutely punctured, punctures hairy; segments of the latter with rufo-ferruginous posterior margins. Length less than two-fifths of an inch. 1834.] 570 TRANSACTIONS OF THE Found near Engineer Cantonment on the Missouri. [Afterwards described as Cryptobium latebricola Nordm.LEG.] 4. L. BICOLoR Grav.-This is an abundant species, and widely distributed. Nuttall gave me a specimen which he found in Arkansaw; I have taken them in Missouri, Pennsylvania, and very commonly in this State. It varies considerably in its shades of coloring. I have an individual of which the thorax is pale yellow. [455] [Belongs to Cryptobium.-LEc.] 5. L. DIMIDIATUM.-Black; thorax and posterior half of the elytra rufous. Inhabits the United States. Black; head with scattered punctures; antennae fuscous; first and second joints and palpi honey-yellow; thorax bright rufous, with a dorsal hardly regular stria of seven or eight punctures, the stria somewhat impressed towards the base; lateral punctures many, not crowded; elytra with one or two hardly regular strise of punctures and lateral scattered punctures; an indented subsutural line; bright rufous, the basal half black; tergum piceous black; segments dull rufous on their posterior margins; feet pale yellow. Length three-twentieths of an inch. Var. a. Punctures of the thorax a little more regular and numerous; black portion of the elytra confined to the basal margin and sometimes obsolete. Punctured somewhat like lonygiusculum Grav., but is much smaller and differently colored. 6. L. sPHERICOLLE.-Blackish; thorax orbicular, convex; antennae long. Inhabits Indiana. Body black piceous; head with the carina of the antennae a little elevated, abrupt before; antennae much thicker towards the tip, rather longer than to the base of the thorax, first joint hardly longer than the second and third together; fuscous, three basal joints honey-yellow, fourth and terminal joints obscure honey-yellow; larger joints hardly longer than broad, mandibles [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 571 bifid at tip, and with the palpi piceous; neck distinct; thorax nearly orbicular, a little wider before the middle and narrower behind; convex, with sparse black hairs; elytra with scattered upright hairs; subsutural striae deeply indented, particularly towards the base; tip truncate, not sinuate; taken together, transverse quadrate; tergum black; feet yellowish; thighs towards the tip piceous. Length over one-tenth of an inch. The labrum is longitudinally indented in the middle, and at tip is widely, but not very deeply emarginate. The habit differs from that of most of the species, and it cannot be, rigidly speaking, congeneric with bicolor and pallipes Grav. [456] [Belongs to Apocellus.-LEC.] It varies in having the feet entirely yellowish and the tips of the carinae of the head honey-yellow. 7. L. MILLEPUNCTATUM.-Piceous; with dense, minute punctures; thorax with a glabrous line, rounded behind. Inhabits Indiana. Body dull piceous, with very minute, crowded punctures and small hairs; head larger than the thorax, black piceous, quadrate, almost lobed at the posterior angles; antennae and mouth paler, rufous; thorax, as in Staphylinus, rounded behind and truncate before; a dorsal, slender, glabrous line; elytra paler on the humerus; tergum dark piceous, posterior margins of the segments and lateral margin paler; beneath honey-yellow, head rufous. Length less than one-fourth of an inch. The form of the thorax and head is that of a Staphylinus; which, together with the dense and minute puncturing, distinguish this species very readily from others. [Belongs to Lithocharis, and previously described as Pederus corticinus Grav.-LEC.] 8. L. CONFLUENTUM [CONFLUENS.]-Piceous; densely punctured; thorax short, rounded behind and angulated before each side; head large. Inhabits the United States. Body piceous; head with close set, discoidal punctures; large, ovate or subquadrate; tips of the carinae of the antennae, base of 1834.] 572 TRANSACTIONS OF THE the antennae and palpi paler; palpi with the terminal joint very small; antennae towards the tip moniliform; thorax much smaller than the head, paler on the lateral and posterior margins; punctures confluent longitudinally; anterior margin with a short, abrupt neck; anterior angles angulated; behind rounded; elytra with small, irregular punctures, furnishing short hairs, almost obsolete at tip; tip paler; feet honey-yellow. Length less than three-twentieths of an inch. I obtained a few specimens at Chincoteague Island, in dung, October; and one in Indiana. [Also a Lithocharis.-LEC.] PINOPHILUS Gray. P. LATIPES Grav. —In his last work this author abolishes this genus and unites the species with Lathobium. But I think with Latreille, that it must be a distinct genus. [457] PzEDERUS Fabr. 1. P. DISCOPUNCTATIS.-Yellowish; abdomen black at tip. Inhabits the United States. Body elongated, dull honey-yellow, punctured; head with close set, discoidal punctures; subquadrate, obtuse before; antennae and palpi paler than the head; thorax with discoidal punctures; which are close set and like those of the head with a central point; oval, rather smaller than the head; edges a little darker; elytra a little paler than the head and thorax, with dense, transversely somewhat confluent punctures; abdomen dark honey-yellow, black at tip; feet color of the elytra. Length less than three-twentieths of an inch. Resembles P. binotatus Say, but may be distinguished at first sight by the more obtuse anterior termination of the head, and by the absence of the elytral spots, which mark that species. [Belongs to Sunius, and was previously described as Peederus longiusculus Mann.-LEc.] 2. P. cINCTUS.-Black; tips of the elytra obscure rufous. Inhabits the United States. Body elongated, black with a slight tinge of piceous, and with discoidal punctures; head obtuse before; antennae and palpi [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 573 honey-yellow; thorax somewhat smaller than the head, a little'obovate, obscurely rufous behind; elytra obscure rufous at tip; tergum, posterior margins of the segments dull rufous; feet pale honey-yellow. Length nearly three-twentieths of an inch. Resembles the preceding in form, and in the obtuse anterior termination of the head. [Probably the same with Sunius prolixus Er.-LEc.] RUGILUS Leach. R. DENTATUS. —Black feet pale; elytra dull rufous at tip. Inhabits United States. Body piceous black; head longitudinally wrinkled; antennae and palpi piceous; labrum large, bidentate in the middle, piceous, rounded each side; thorax smaller than the head, longitudinally wrinkled, convex, with a longitudinal, glabrous line; elytra with numerous, minute, hairy punctures; a subsutural impressed line; posterior margin dull [ 458] rufous, or yellowish; feet pale yellowish. Length over three-twentieths of an inch. Var. a. Posterior margin nearly black towards the suture; glabrous thoracic line almost obsolete. Much smaller than R. orbiculatus Payk., and the wrinkles of the head and thorax are larger and more obvious. [Belongs to Stilicus. —LE.] STENUS Latr. 1. S. GENICULATUS.-Black; antennae and feet whitish. Inhabits United States. Body black, with a very slight cinereous tinge; deeply punctured; head with a wide, but not very deep indentation each side of the middle; profoundly punctured; antennae whitish; anterior part of the head with short whitish hairs; thorax punctured like the head; elytra also with profound punctures; tergum a deeper black than the elytra; segments with large punctures at base and small ones towards the tip; feet yellowish-white; posterior knees blackish. Length less than one-fifth of an inch. 1834.] 574 TRANSACTIONS OF THE This has been supposed to be the same as the fuscipes Gray., but it is much larger, with pale feet, &c. [The name being preoccupied was changed by Erichson to S, flavicornis.-LEc.] 2. S. COLON.-Black; elytra with a rufous dot; feet pale beneath. Inhabits Indiana. Body black, with large, dense, not very profound punctures; elytra with the punctures towards the suture longitudinally confluent; a sublunate or triangular, dull rufous spot rather behind the middle of each elytrum; tergum with the punctures not smaller at the posterior margins of the segments; feet dirty yellowish; thighs blackish above. Length over three-twentieths of an inch. Much like S. biguttatus Linn., but is much smaller, and the spot of the elytra is placed rather more outward and backward, and is more triangular and emarginate before. 3. S. STYGICUS.-Grayish black, immaculate. Inhabits Missouri. Body black, with a slight tint of gray; punctures dense, with short, prostrate hairs; head obtusely indented each side between the eyes; [459] thorax broadest a little before the middle; elytra, region of the scutel indented; tergum of a more unmixed black than the anterior part of the body; feet immaculate. Length nearly three-twentieths of an inch. Resembles bupthalmus Sch., but may be distinguished by the more obvious indentations of the head. 4. S. FEMORATUS. —Grayish black; thighs rufous. Inhabits Pennsylvania. Body black with a slight tinge of gray; punctures dense, with short, prostrate hairs; head obtusely indented each side between the eyes; thorax broadest rather before the middle, contracted behind; a slight appearance of indentation behind the middle; elytra, region of the scutel a little indented; tergum of a more unmixed black than the other part of the body; anterior thighs rufous, black at the knee; posterior thighs obscure rufous. Length less than three-twentieths of an inch. [Vol. IV, AMERICAN PHILOSOPHICAL SOCIETY. 575 0. S. QUADRIPUNCTATUS.-Black, punctured; thorax hexagonal, inequal. Inhabits Missouri. Body deep black, immaculate, profoundly and densely punctured; mouth testaceous; palpi black; thorax hexagonal, the lateral edge projecting into an angle in the middle, disk with four dilated, indented spots, placed in quincunx, with a slightly elevated line between them, one or two obsolete, indented spots near the lateral angle; abdomen, pectus and postpectus impunctured, the former with short hairs; feet piceous. Length more than one-tenth of an inch. Found at Engineer Cantonment. It has a somewhat different aspect from the preceding species. The eyes are not quite so large, and the three last joints of the antennae are not so remarkably larger than the others. OXYPORUS Fabr. 0. STYGICUS.-Black; tarsi rufous. Inhabits Indiana. Body black, polished; antenna 2-5 joints rufous; labrum rufous; palpi honey-yellow; thorax with the lateral deflected margin indented; [460] elytra entirely black; a subsutural striae, and an abbreviated one on the middle, near which is another obsolete one, and many rather large distant punctures; exterior margin impunctured; feet blackish piceous; tarsi pale rufous. Length three-tenths of an inch. The thorax is somewhat longer than that of cinctus Gray.. and the punctures of the elytra are more numerous. OXYTELUS Gray. 1. O. SCULPTUS.-Blackish; five lined; elytral rufous; feet pale. Inhabits Pennsylvania. Body piceous-black, punctured; head indented, with numerous, small punctures above; mouth piceous; antenna fuscous, piceous at base; thorax with five grooves, of which the exterior ones are dilated and not deeply impressed; densely punctured; anterior angles not acute; elytra dull rufous, with small hairy punctures; a subsutural impressed line and another from the 1834.] 576 TRANSACTIONS OF THE humerus not reaching the tip; tergum black with a piceous tinge; feet yellowish-white; tibiae and tarsi a little darker. Length over three-twentieths of an inch. Gravenhorst considered this insect as specifically identical with his piceus, but in his remarks on that species he states that " huic Oxytelo alius affinis est, quam D. Prof. Knoch 0. sculptus nuncupavit. Differt thorace lateribus subrotundatis, basin versus paulo angustiore, coleoptris breviore et paulo angustiore, fusco seu rufo; coleoptris quadratis, rufescentibus seu piceo-rufo." These differences of character indicate a difference of species. It is the Aleochara sculpta of Melsheimer's Catalogue. 2. O. RUGULOSUS.-Black; longitudinally wrinkled; elytra obscure piceous. Inhabits Mexico. Body black, rather short, with numerous punctures, somewhat confluent into longitudinal wrinkles; head with three grooves, rather slightly impressed, the lateral ones dilated; antenna brown, dull honey-yellow at base; palpi dull honey-yellow; thorax with three grooves, of which the middle one is wider before and the lateral ones wider behind; each side a little concave, the edge slightly reflected: anterior [461] angles acute; lateral edge arquated; rounded behind; elytra transverse quadrate, blackish piceous; tergum with dense minute punctures; feet honey-yellow. Length less than one-tenth of an inch. This does not altogether agree with the var. a. of the carinatus of Gravenhorst, and to which he has given the name of insignitus. The present species is proportionally much shorter than the carinatus. It is not more than half the length of that species. It is more than probable that the insignitus is also a distinct species. I obtained three specimens of the rugulosus in Mexico. [According to Erichson is the European 0. nitidulus.-LEc.] 3. 0. CORDATUs.-Black; elytra whitish, with a common brown spot. Inhabits Virginia. Body black, with numerous small punctures; mandibles pice[Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 577 ous; antennae pale, towards the tip brownish; thorax, angles almost rounded; elytra yellowish white, with a common fuliginous disk; feet yellowish white; tibiae and tarsi darker. Length three-twentieths of an inch. This occurred extremely numerous, in October, under the surface of the sand in flat places on the sea beach, over which the high tides flow. When the water subsides, their labors become visible. They proceed forwards a little beneath the surface in a very irregular line, casting up the sand so as to resemble a miniature mole tunnel. On the wet or partially dry plain, their tunnels, though very small, are yet very striking to the eye, in consequence of their great abundance, and being drier and whiter than the general surface. They appear to be in search of the various minute crustaceous animals, that take refuge in the sand on the recession of the waters. [Belongs to Bledius.-Lec.] 4. 0. EMARGINATITS.-Black; elytra whitish with a fuliginous suture. Inhabits Indiana. Body black, punctured; head with numerous, but not crowded punctures; two longitudinal indentations between the antennae; antenna, mandibles and palpi honey-yellow; thorax with a piceous tinge, rounded behind; with rather sparse, well defined punctures, and an obvious, impressed, dorsal line; elytra with separate punctures and a much dilated, common, fuliginous vitta; sutural tip very obtusely [462] rounded; feet honey-yellow; thighs and coxse whitish. Length less than one-tenth of an inch. The obtusely rounded sutural tip of 6the elytra, gives this part, in repose, a profoundly emarginated appearance. [Also a Bledius.-LEc.] MOLOSOMA Say. Labrum entire; palpi filiform, terminal joint of the maxillaries much longer than the second, slightly attenuate to the tip; antennae before the eyes, inserted under the margin, gradually thicker at tip, four last joints larger; body cylindric; thorax 1834.] 37 578 TRANSACTIONS OF THE truncate at base; abdomen with the penultimate segmentlongest; tibie spinous, a little arquated. 3I. LATIPES Grav. Monog. Coleopt. Micr., p. 198. In the present state of the science, the latipes can no longer remain in the genus Oxytelus, as a species of which Gravenhorst described it. That author was, however, perfectly sensible of its distinguishing characters, and had he written twenty years later, I should not now have to construct this new genus. The following are his remarks adjoined to his copious description, to which I must refer the reader: " Cum hoc insectum palpis instructum sit filiformibus, antennis extrorsum crassioribus, thorace immarginato basi truncato, Tachinis adnumerandum foret, si solos characteres artificiales (Coleopt. Micropt., p. 134) datos respiceremus. Habitu autem toto, et exceptis ultimis palporum articulis, partibus etiam singulis cum Oxytelis hujus familiae plane congruit. Certo systematis naturalis nullam haberemus rationem, cum hoc micropteron Tachinis adjungeremus. Oxytelis autem, sicut huc usque determinati erant, ob characteres per systema artificiale constitutos, baud adsociari potest. Eodem ergo jure, quo Astrapaei genus olim a Staphylino disjungebatur, quibus attamen simillimum est, hoc etiam insectum genus novum, ab Oxytelis separatum, conderet, nisi regula systematis naturalis, i. e. character totus externus seu habitus totus, dissuaderet." [463] [This genus was previously described as Osorius Latr.-LEc.] ANTHOPHAGUS Gray. A. VERTICALTS.-Body reddish brown; elytra and margin of the tergum yellowish. Inhabits Pennsylvania. Body chestnut, punctured, a little hairy; head darker than the thorax, punctures sparse; disk of the vertex impressed; between the antennae unequal; antenne and mouth paler than the head; thorax convex, rounded each side, contracted at base, with a conspicuous impressed line, terminating behind in a dilated puncture; elytra reddish yellow, punctured, at tip obscure; tergum with a dorsal impressed line; posterior or rather lateral triangular yellow spot, and on the lateral margin of each segment; thighs testaceous; tibis and tarsi somewhat darker. [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 579 Length under one fifth of a inch. Allied to A. brunleus nob., but the segments of the tergum are not margined around by dusky; on each is a dusky triangle, much dilated on the posterior margin, so as nearly to reach the lateral edge. OMALIUM Grav. 1. O. TIARGINATUM.-Piceous, punctured; antenna and feet dull rufous. Inhabits upper Missouri. Body oblong-oval, piceous, punctured; head, punctures sparse, obsolete at tip, with an indentation each side between the antennae and a longitudinal impressed line each side at base; antennae rufous at base, red brown obscure at tip with cinereous hair; palpi rufous; thorax transverse subquadrate, punctures not crowded; posterior edge obscurely piceous; elytra longitudinally quadrate, covering more than half of the tergum, exterior margin piceous towards the humerus; exterior hind angles rounded, sutural ones acute; almost to be traced into striae; feet piceous, paler towards the tip; tergum obscurely rufous on the margin, and on the posterior margins of the segments. Length one-tenth of an inch. I obtained this insect when with Major Long's expedition to the Rocky Mountains; I think it occurred at Engineer Cantonment on the Missouri. [464] 2. 0. ROTUNDICOLLE.-Piceous, black; thorax rounded behind, emarginate before. Inhabits Pennsylvania. Body with rather large, numerous and profound punctures; antennae piceous, brown, the three basal joints, labrum and palpi honey-yellow; thorax transverse oval, deeply emarginate before, equally punctured; posterior angles rounded; edges piceous; elytra equally punctured, long; terminal edge piceous; tergum piceous, rather paler on the posterior margins of the segments: feet dark honey-yellow; venter somewhat piceous. Length less than one-fifth of an inch. Taken on the wing at twilight, in October. [Belongs to Olopihrum Er.-LEC.] 1834.] 580 TRANSACTIONS OF THE TACHINUS Grav. 1. T. ATRICAUDATUS nob.-Very closely allied to atricapillus, and cinctus Grav. 2. T. OBSOLETUS.-Black; thorax, curve on the elytra, segment margins and feet yellowish. Inhabits Virginia. Body black; antenna fiscous; four basal joints yellowish; tip of the last joint dirty fulvous; mouth honey-yellow; thorax honey-yellow; elytra, in some lights with an appearance of obsolete strip; subsutural impressed line obvious; a honey-yellow base, suture and terminal margin; abdomen with the segments piceous on their posterior margins; feet pale yellowish. Length over one-fourth of an inch. I obtained this species in October, at Chinquoteague Island. [Belongs to Boletobius.-LEc.] 3. T. TRIMACULATUS.-Yellowish; head and three elytral spots blackish; tergum rufous. Inhabits Pennsylvania. Body yellow, tinged with honey-yellow; head obscure piceous; antennae fuscous; four basal joints pale yellow; mouth yellow; mandibles piceous at tip; thorax immaculate; scutel piceous; elytra with a few remote punctures on the basal half, and towards the tip obsolete impressed striae, a subsutural impressed line, near which is a series of distant larger punctures; region of the scutel with a dilated blackish triangle, extending to the middle of the length of the suture, and thence by a narrow and paler sutural line to the tip; exterior [465] margin or epipleura black, with a spot near its tip extending inwards, half way to the suture, but notreaching the tip of the elytra; tergum dull sanguineous; near the tip with an obsolete, blackish band; at tip with a yellowish tinge. Length over three-twentieths of an inch. [Considered by Erichson identical with the European Boletobius pygimwas; it has been subsequently described as B. venustus, Mels., and B. angularis, Sachse, Ent. Zeit. 1852, 122.LEc.] [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 581 4. T. CINCTICOLLIS.-Black; posterior thoracic margin, line of the elytra, and feet yellowish. Inhabits Indiana. Body black; mouth yellowish; palpi pale yellow: antenna fuscous, three basal joints yellowish; fourth joint piceous; thorax, posterior margin, and lateral margin dilating towards the posterior angles, honey-yellow; scutel piceous; elytra with an appearance of strie at tip; a sutural impressed stria, near which is a series of distinct punctures, and another near the middle and a submarginal one; pale yellowish, a dilated oval blued black spot extends from before the middle to the tip, does not attain to the suture and is confluent with a blackish marginal line which does not reach the humerus; tergum, segments on their posterior margins, obscure piceous; feet pale yellow. Length less than one-fifth of an inch. Distinguished from the others of this country, by the differently colored thoracic margin. [Also a Boletobius.-LEC.] 5. T. HUMIDUS.-Black; elytra and posterior margins of the abdominal segments, rufous. Inhabits Indiana. Body black; antennae brownish, base and mouth honey-yellow; thorax piceous on the posterior edge; elytra rufous or honeyyellow, an impressed subsutural line, near which is a series of punctures, surface with sparse punctures almost to be traced into two or three series; sutural margin very slightly dusky; tergum blackish, with piceous posterior margins of the segments; tip somewhat fulvous; feet honey-yellow. Length one-tenth of an inch. Allied to the preceding, but is a much smaller species, and the elytra are immaculate. [466] [Erichson considers this as probably Mycetoporus lepidus.LEC.] TACHYPORUS Grav. 1. T. FUMIPENNIS.-Black; margin of the thorax and base of the elytra yellowish. Inhabits Pennsylvania. 1834.] 582 TRANSACTIONS OF THE Body minutely punctured; head black; antennae filiform, brown; four basal joints honey-yellow; palpi filiform, yellowish; thorax black, margined around with honey-yellow; scutel black; elytra fuliginous; a wide part of the base and narrow tip dull honey-yellow; tergum blackish, the segments piceous on the hind margins; beneath black piceous; feet honey-yellow. Length over three-twentieths of an inch. [Belongs to Tachinus.-LEc.] 2. T. MOESTUS.-Piceous, sericeous; thorax and elytra margined with dull yellowish, obscure. Inhabits United States. Body blackish, piceous, somewhat sericeous; mouth and antennae dull yellowish; the latter pale brownish towards the middle; palpi, penultimate joint thick; last joint much shorter and acicular; thorax dilated, convex, lateral and basal margins dull yellowish; elytra, basal, and exterior margins dull yellowish; abdomen somewhat hairy at tip, beneath honey-yellow; feet not or hardly spiny. Length less than three-twentieths of an inch. The paler margins of the thorax and elytra are sometimes almost obsolete. [Belongs to Conurus, and previously described as T. crassus Grav~ —LEC.] 3. T. Jocosus.-Black; thorax, elytra, feet and mouth yellowish. Inhabits Indiana. Head black piceous, polished, convex, impunctured; antenna honey-yellow (six ultimate joints wanting in the specimen); palpi honey-yellow, terminal joint acicular; thorax polished, impunctured, yellowish; anterior and posterior margins blackish; scutel blackish; elytra yellowish, with very fine, prostrate hairs; region of the scutel blackish; tergum, posterior margins of the segments yellowish, longer than the elytra (in the preserved state); feet pale yellow. Length one-tenth of an inch. [Afterwards described as T. arduus Er.-LEc.] 4. T. VENTRICULUS. —Black; thorax each side and elytral margin piceous. [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 583 Inhabits Pennsylvania. Body black, with a slight piceous tinge, polished; antennae dull [467] yellowish, dusky towards the tip; mouth dull yellowish; palpi filiform; thorax piceous on the lateral margin, gradually shading to the general blackish color; elytra on the lateral margin and at tip piceous; common edge of the tip not indented at the suture; tergum (in the preserved state) much shorter than the elytra, at tip of the segments dull piceous; feet honey-yellow; tibie not remarkably spiny. Length one-twelfth of an inch. The abdomen contracts very much in desiccation. This can hardly be crassus Grav., as his description does not indicate it. [Considered by Erichson as a Tachizus, but more recently such species have been separated as a distinct genus Coproporus Kraatz.-LEc.] 5. T. oPrcus.-Blackish; feet, base of the thorax and of the elytra obscure reddish-brown. Inhabits Missouri. Body deep black brown, somewhat sericeous; head black; antenne at base and tip pale reddish-brown; palpi pale reddishbrown; thorax convex; a narrow, obscure, red brown posterior margin; elytra with a broad red brown basal margin; feet red brown; tibiae not remarkably spinous; tergum with paler margins to the segments, shorter than the elytra, hairy at tip. Length over one-tenth of an inch. This species is not highly polished, but is distinctly sericeous. [Afterwards described as Conurus cinctulus Er.-LEc.] 5. T. ACAUDUS.-Abbreviated; honey-yellowish; thorax paler each side. Inhabits Indiana. Body honey-yellow, polished; head black piceous; antennae fuscous, four basal joints obscure yellowish; palpi yellowish, last joint acicular; thorax honey-yellowish, more dusky on the disk and at base, and paler, somewhat translucent on the lateral margin; elytra yellow with a rufous tinge, a little hairy, dusky on the region of the scutel; tip of the suture a little rounded, so as 1834.] 584 TRANSACTIONS OF THE to produce an acute, but small, common emargination; tergur less than half the length of the elytra, blackish-brassy, somewhat hairy; feet yellow, pale; tibiae with obvious, but not very prominent spines. Length nearly one-twelfth of an inch. This is very broad in proportion to its length, in consequence of the great contraction of the abdomen in drying. It resembles Jocosus N., but is wider in proportion to its length, without taking into consideration the extraordinary brevity of the abdomen. [468] 7. T. FABER-Thorax and elytra yellowish; near the scutel depressed; last joint of the palpi very short. Inhabits Indiana. Body somewhat depressed; head blackish-piceous, polished; antenna yellowish towards the base; palpi, penultimate joint rather dilated; ultimate joint very short, conic, hardly onefourth as long as the preceding; thorax honey-yellow, glabrous; scutel small, dusky; elytra paler than the thorax, slightly hairy suture and base near the scutel a little dusky; region of the scutel somewhat indented; tergum wider and more depressed than in most species, paler towards the tip; beneath reddishbrown; feet yellowish; tibiae a little spinous. Length about one-twelfth of an inch. The abdomen is more depressed than usual in this genus, and the terminal joint of the maxillary palpi is much shorter than in our other species. Much reform seems requisite in this and the preceding genera. [According to Erichson this is the European T. fabcr.LEC.] 8. T. FIMBRIATUS Grav.-Varies in being more or lesss tinged with ferruginous. The head and thorax are sometimes entirely dull ferruginous. It is the boleti of Melsh. Catal., but it was afterwards first described by Gravenhorst under the name which I have of course adopted. [Belongs to Tachinus.-LEC.] [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 585 ALEOCHARA Grav.* 1. A. OBSCURICOLLIS.-Black; elytra ferruginous; tarsi piceous. Inhabits Mexico. Body black; head opaque; labrum piceous; thorax orbicular, truncated before for the reception of the head, opaque; elytra ferruginous, length hardly exceeding the breadth; scutel black, opaque; abdomen obviously hairy, polished, lateral edge somewhat elevated; tarsi piceous. Length less than three-tenths of an inch. 2. A. BIMACULATA Grav. A species very closely allied, or perhaps the same as the isnaculata Grav., is an inhabitant also of Mexico. 3. A. LUSTRICA.-Blackish; thorax each side, elytra and feet dull rufous. Inhabits Pennsylvania. [469] Body piceous-black, obviously punctured; head black, with numerous punctures, sparse in front and more dense behind; before the antennae triangularly carinate, dull piceous; antenna dark reddish-brown, three basal joints honey-yellow; mouth dull honey-yellow; thorax with very numerous punctures, rather larger towards the base and almost to be traced into transverse arquated lines; lateral margins piceous; elytra dull yellowishrufous, with dense punctures; abdomen piceous at tip; feet honeyyellow. Length under one-fourth of an inch. [The same as the European A. fuscipes.-LEC.] 4. A. FASCIATA.-Yellow; head, band of the elytra, spot on the tergum black. Inhabits Pennsylvania. *Body yellow, with a slight rufous tinge; head black piceous, with rather large punctures each side towards the eyes; eyes large, prominent; mouth dull yellowish; antenna at base pale * None of the species placed by Say under this genus are mentioned in the Genera et Species Staphylinorum of Erichson.-LEc. 1834.] 586 TRANSACTIONS OF THE yellow; thorax sparsely and unequally punctured, with four somewhat larger remote punctures on the disk; elytra punctures small, not deeply impressed; posterior half blackish; tergum with a black dot near the tip; feet whitish. Length about one-twelfth of an inch. This is the A.fasciata of Melsh. Catal. [ Gyrophwna vinula, or G. dissimilis Er.-LEc.] 5. A. INDENTATA.-Yellowish; head, thoracic disk, elytral spot and middle of the tergum, black. Inhabits Pennsylvania. Head not obviously punctured; eyes not remarkably large or prominent; antennae reddish-brown, pale at base; mouth honeyyellow; thorax dull yellowish, dusky in the middle; a longitudinal impressed line, and an indentation on the middle of the base; elytra with small, numerous punctures; yellowish, with the sutural edge and a triangular spot, extending from before the middle to the posterior outer angle, but not reaching the suture; tergum reddish-yellow, the two middle segments blackish; beneath yellowish; postpectus and middle of the venter black; feet whitish. Length about one-fifteenth of an inch. Var. a. Thorax with the dusky disk obsolete. Resembles the dichroa Grav., in having the indentation on the [470] middle of the base, but it differs in many respects, and obviously in coloring. [A species of Homalota.-LEc.] 6. A. 4-PUNCTATA.-Thorax rufous, with four punctures placed transversely. Inhabits Missouri and Indiana. Head piceous black, with one puncture on the inner orbit, and three or four behind the eye; antenns, reddish-brown, three basal joints honey-yellow; palpi piceous; thorax honey-yellow with four distant punctures before the middle, placed in a transverse line, the lateral ones less distinct; elytra dull honey-yellow, with minute punctures, having prostrate hairs; tergum piceous, paler towards the tip; beneath dark piceous; feet yellowish. Length over one-tenth of an inch The four punctures of the thorax is an obvious character. [I have not identified this nor the two succeeding species.LEC.] [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 587 7. A. PROPERA.-Blackish; thorax depressed on the posterior middle. Inhabits Indiana. Body with very numerous small punctures, furnishing pale yellowish hairs; antennae black fuscous, three or four basal joints piceous; mouth piceous; thorax black piceous, conspicuously hairy; on the middle of the base indented; elytra piceous brown, obviously hairy, a little depressed on the basal margin and in the region of the scutel; tergum black; feet pale piceous. Length over or about one-tenth of an inch. The depression, almost or quite amounting to an indentation at the base of the thorax is sometimes geminate. 8. A. SEMICARINATA.-Blackish; thorax with a carina on the basal half. Inhabits Missouri. Body black with a piceous tinge; thorax with an elevated line or two parallel impressed striae, from the middle to the base; * elytra with a slightly impressed sutural groove on the basal half; abdomen black; feet pale piceous. [471] [Continuation from Vol. VI. N. S., 1836, pp. 155-190.] 9. *A. SIMPLICICOLLIS.-Blackish; antenna, feet, inner tip of the elytra and posterior margins of the segments of the tergum reddish-brown. Inhabits Missouri. Body with short prostrate hairs; head black; antennae reddishbrown; transverse joint somewhat darker; elytra on the sutural margin, particularly towards the tip, obscure reddish-brown; common emargination at tip very obvious: tergum with the pos*In the description of the preceding species (A. semicarinata see Vol. IV. N. S., p. 470,) the following details were accidentally omitted:Length less than one-tenth of an inch. Resembles.A. propera, but may be distinguished by the double thoracic groove, forming an inclined carina. 1836.] 588 TRANSACTIONS OF THE terior margins of the segments dull reddish-brown; feet reddishbrown or honey-yellow. Length about one-tenth of an inch. Distinguished from the two preceding species by the simplicity of the thorax and the margined segments of the tergum. [I have not yet identified this species.-LEc.] 10. A. FALSIFICA.-Black; withconverging hairs; elytra and feet yellowish. Inhabits Indiana. Body black, with rather long, prostrate hairs: head with the hairs [156] converging to the middle line and directed forward, antennae blackish; basal joints obscure piceous: palpi dull yellowish; thorax with the hairs converging to the middle line and directed forwards: elytra dull yellowish; darker on the base, suture and outer margin; the hairs somewhat arranged so as to resemble striae: feet honey-yellow. Length about one-tenth of an inch. [I have not yet identified this species.-LEC.] 11. A. VERNA.-Black; distinctly punctured; inner top [tip?] of the elytra dull yellowish. Inhabits Missouri. Body with scattered hairs: head polished, with sparse irregularly arranged, rather large punctures: antenna of the basal joints hardly tinged with piceous: thorax polished, with numerous, rather large, unequal and irregularly scattered punctures; middle line destitute of punctures: feet black-piceous. Length about one-tenth of an inch. The more conspicuous and irregular puncturing will distinguish this species from the above described. [If for top we read tip, this is A. nitida Grav.-LEC.] 12. A. EXIGUA. —Black; punctured; antenna and feet hardly tinged with piceous. Inhabits Indiana. Body black, a little polished, with short hair; punctures numerous, somewhat regular: antenna at base and palpi very sli ghtly tinged with piceous: elytra a little indented at the scutel: [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 589 at tip the common emargination obtuse, not profound: feet blackpiceous. Length one-twentieth of an inch. [A Homalota, probably the same as Ogotalpedic7umris Mels.LEC.] 13. A. MINIMA.-Black; elytra and feet dull yellowish. Inhabits Indiana. Body black, with numerous prostrate hairs: antenna towards the base with a very slight tinge of piceous: elytra dull yellowish: tergum dirty yellowish at tip: feet whitish yellow, dull. Length nearly one-tenth of an inch. Var. a. Thorax nearly the color of the elytra. [Also a Homalota.-LEc.] 14. A. BILOBATA.-Dark reddish-brown; thorax subcordate, canaliculate, feet pale. Inhabits Missouri and Indiana. Body very dark reddish-brown, with numerous regular punctures: antennae, two basal joints paler: mouth beneath, excepting the terminal joints of the maxillary palpi, pale testaceous: thorax rounded before and narrower behind; very deeply canaliculate; groove abruptly abbreviated on the basal margin: elytra at tip and sides with smaller [ 157] punctures than the thorax; suture irdented: feet pale testaceous: tergum, segments with dilated punctures at base., Length less than three-twentieths of an inch. The thoracic canal is less dilated, but at least as profound as that of the canaliculata Gray.; the thorax is more contracted behind, and the head more prominent, and distinctly separate from the thorax by a short neck. The genus Aleochara, as is obvious to entomologists, needs reformation. The present species, and some others of Gravenhorst's first divisions, may be separated from it under the following name and characters. Genus Aleodorus.-Head prominent, with a distinct neck, not inserted into the thorax; antennae inserted into the anterior internal orbit of the eye; three basal joints longest; maxillary 18s6.] 590 TRANSACTIONS OF THE palpi long, terminal joint acicular; thorax longitudinal, rounded on the sides, or without lateral edge; feet simple.* [Belongs to Falagria.-LEc.] BUPRESTIS F. 1. B. VIRGINICA.-Turton's Linn. p. 411; Drury's Ins. vol. 1, p. 66, pl. 30, fig. 3. This species very closely resembles B. mariana L., and notwithstanding the magnitude of Drury's figure, it is somewhat smaller than the latter species, the posterior part of the thorax is a little narrower and the curvature of its lateral edge is somewhat different. It inhabits the Eastern and Middle States. [Belongs to Chalcophora..-LEc.] 2. B. LIBERTA Germ.-This differs more in color from the virginiensis, than the latter species does from the mariana; but it corresponds with virginiensis in the form of the thorax. I am still inclined to consider it a variety of that species, which Germar does not refer to in his description of liberta. [Also a Chalcophora.-LEC.] 3. B. LJRIDA F. (and Melsh. Catal.) This is the corrosa Deg. MSS. Herbst. Olivier did not observe the anal points, which are sometimes obscured by the hair. [A species of Dicerca.-LEc.] 4. B. DIVARICATA nob.-That this insect is closely allied to acuminata F., there can be no doubt, and Dejean (in a letter) considers it the same; but, on reference to the description of that species by Gyllenhal (Insecta Svecica*,) I find the following characters, " thorax ante scutellum puncta duo impressa; anus emarginatus." In the present species is only a single indentation at the base of the thoracic groove, and immediately anterior * I am indebted to Professor Wiedemann for the two very useful works on "Coleoptera Microptera" by Gravenhorst. They contain detailed descriptions of many North American species of the Linnpean genus Staphylinus, which now constitute a large family. tFor this very accurately descriptive work, I am indebted to the politeness of the author. [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 591 to the scutel, and the anus is tridentated, the middle tooth being more slender and acute. A variety in my collection is destitute of the punctured striae of the elytra. [Also a Dicerca.-LEc.] 4. B. OBSCURA F. (and Melsh. Catal.) Herbst says the side of the thorax is rectilinear, not arcuated. This would agree better with lurida F.; my specimens of obscura are rectilinear only from before the middle to the base. [Also a Dicerca.-LEc.] 5. B. DENTIPES Germar. —This is the characteristica of Melsheimer's Catalogue; but, as no mere catalogue can establish a name, Germar's must be of course retained, because it is the first name recognized by a description. [This and the two following belong to Chrysobothris.-LEC.] 6. B. IYBERNATA F.-From the specimen in my collection, I am led to believe that the hliybernata F., is but a variety of the frontalis Olivier, and that both have serrate elytra; but I have not at present the means of referring to Olivier's work. My specimen is reddish purple; thorax immaculate; elytra serrate, with but five green spots; and the anterior thighs are armed with a prominent tooth. 7. B. SEXGUTTATA nob. (Journ. Acad. Nat. Sc.)-This name being preoccupied by Herbst for an American species, we change it to sexsignata. 8. B. GIBBICOLIS nob. (Journ. A. N. S.)-This name is preoccupied by Illiger for an European species, it must therefore be changed. [A species of Ptosima, ante, 104.-LEC.] 9. B. PULCHELLA Herbst.-The volvulus F., is probably the same species; but which of the two names has the priority I cannot now ascertain, not having the date of Herbst's volume. There is some confusion amongst the species of the small group to which this belongs, in consequence of the short descriptions of Fabricius. Herbst's description of this species cannot well be mistaken. I have found it in Pennsylvania, [159] Florida and Arkansa. It is the ornata of Dejean's Catalogue; and 1836.] 592 TRANSACTIONS OF THE G ermar, in a letter, considers it a new species under the name of'Clydonia. [This and the two succeeding species belong to Acmeodera. — LEc.] 10. B. ORNATA.-About the size of the preceding, though perhaps a little more robust, of a much darker color; and may also be distinguished from it by the thorax having the dorsal line deeply indented, more especially on the posterior margin, and being obtusely angulated behind the middle of the lateral edge. Dejean supposed it a new species, and gave it, in MSS., the name of multiguttata, but I think there is no doubt that it is the Fabrician species. 11. B. TUBULUS F.-This species is described as having but five yellow punctures on the.elytra, placed 2, 2, 1, the latter being the largest. But it varies considerably in this respect, sometimes having eight or nine spots, and again other specimens occur with not more than are indicated by Fabricius, if we consider the posterior'larger one as being composed of two confluent ones. The rest of the description agrees precisely, and even the noted size corresponds with our insect; as Fabricius says, " statura omnino C. volvuli, at duplo minor." It may indeed be at once distinguished frompulchella by its much inferior size, very different color, and the greater regularity of its elytral spots; but the lateral edge of the thorax has a similar curvature. It is the smallest of our species of the group distinguished by the want of scutel, &c.. and approaches the ornata by its coloring and the somewhat similar arrangement of the elytral spots, but differs in the regular curvature of its lateral thoracic edge. It is the olvzulus of Dejean's Catalogue. Germar believed it new and gave it the name of xanthocyma; it is the culta of Weber; and Dr. Harris has described it under the name of geranui. 12. B. ACORNIS.-Brassy black; antennae short; scutel green; beneath cupreous. Inhabits Indiana. Body with dense, rather large, confluent punctures: head a little tinged with cupreous, particularly towards the tip; tip of the clypeus not narrowed, not emarginate, but with a slight con[Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 593 cave curvature: labrum hardly prominent, not visible when viewed from above: antennae very short, not reaching the vertex, the three basal joints together about as long as all the others combined; thorax in breadth at least [160] twice the length, with transverse confluent punctures: scutel bright green: elytra with transversely confluent punctures; serrate from near the humerus; surface obsoletely undulated: beneath cupreous: anterior thighs with a prominent acute spine. Length seven-twentieths of an inch. A small and distinct species. [Belongs to Actenodes Lac. Gen. Col. 4, 72.-LEC.] 13. B. IMPEDITA.*-Elytra bluish-green, grooved and punctured. Inhabits Pennsylvania. Head confluently punctured, green with a cupreous reflection: antennae steel-blue, at base green: labrum green, ciliate at tip: thorax cupreous, with green confluent punctures; on some parts of the disk the punctures are sparse: scutel oval, regularly concave, green; elytra densely punctured, with five dilated grooves and four elevated lines, the latter sparsely punctured; green, gradually shaded into a blue vitta along the middle; suture and outer margin cupreous; tip somewhat truncated: beneath green cupreous. Length three-fifths of an inch. The specimen was taken near Philadelphia. It is evidently related to salisburiensis, as described by Weber, to decora F., and splendens F., of China. But Weber's description states the former to have striated elytra, without elevated lines. The splendens has only three elevated lines on the elytra, and the decora is larger, with the tip of the elytra two-toothed. Neither can it be the striata Oliv., as the elytra are not slightly bidentate, nor are their two inner elevated lines abbreviated. A variety found by my brother, B. Say, in New Jersey, is much tinted * Dr. Harris is of opinion that this species, the aurulenta of Linnaeus and Olivier, and the striata of Fabricius are the same; and that the decora F. and salisburiensis Weber and Herbst, are identical. The latter differ from the aurulenta L., in not having elevated lines on the elytra. 1836.] 38 594 TRANSACTIONS OF THE with copper, and is smaller, but the sculpture and form are the same. I may add, as closely allied to the impedita and to the salisburiensis Web., in point of coloring, a specimen which I found in New Jersey many years since, and which I then described under the name of ultramarina; but the description was mislaid and never published, and the- specimen is now deprived of its head and thorax. The following is a description of what remains of it. [160] Scutel orbicular, disk indented: elytra blue on the disk; submargin and subsuture green, passing into golden towards the margin and suture which are brilliant coppery or red golden; basal margin green golden; surface with seven or eight striae of dilated profound punctures; the interstitial lines with each a single series of smaller punctures; elevated lines; tip truncated, with a slight projection at the inner angle: beneath green-golden, with a slight coppery tinge: tibia coppery. Length of the elytra two-fifths of an inch. It is more brilliant than either the impedita or salisburiensis. From the former it is distinguished by being destitute of elevated lines on the elytra, and from both by its regular series of large profound punctures. [I agree perfectly with the opinions of Dr. Harris expressed in the note on the preceding page, except in regard to the B. aurulenta mentioned, which is not that of Linneus, but of Olivier and several later authors. The description of Linnaeus, Syst. Nat. 1, 661, makes no mention of the elytral costae, and applies better to A. decora than to A. striata; the name has produced so much confusion, that it should not be applied to any species, but should rather be altogether dropped; B. ultramarina is an Ancylochira very closely allied to A. decora, but of a broader form, with the intervals of the elytra less irregularly punctured, especially towards the suture, with the tips rounded or truncate and not bidentate. Messrs, Laporte and Gory, by unaccountable carelessness, have affixed this name to a species of Chrysobothris.-LEc.] 14. B. VIRIDICORNIS nob.-This has been mistaken by an European entomologist for the Agrilus ruficollis F.; but it is [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 595 very different in form, which is much more like that of a true Buprestis; and the color is also different, though that of the head and thorax probably deceived him, being coppery in each, though much more obscure in our insect. I have taken a variety in this State differing greatly in color, so much so, that it might lead to error unless actually compared. The color is bright green; thorax on the disc tinged with coppery, with a common green triangle extending from the humerus to beyond the middle; beneath the green color is less brilliant. Another variety has the cupreous color of the thorax confined to the lateral margin, the remainder being of the color of the elytra. I may add to the specific description that the head has an orbicular indentation between the eyes, and a slightly indented line on the vertex; the scutel is altogether destitute of a transverse elevated line; it is convex, and widely triangular; the elytra are minutely serrate at tip. This species has characters in common with Buprest's and Agrilus, and it may perhaps belong to the latter. [Two species of Anthaxia are here confounded together: one is A. quercata, the other a variety of A. viridicornis.-LEC.] AGRILUS Megerle. 1. A. RUPICOLLIS F.-We may add to the Fabrician characters that the head is profoundly indented on the vertex; the indented line is continued down the front; the elytra are scabrous, and at tip, as well as that of the abdomen, serrate. Var. a. Thorax obscure green. [162 Var. b. Thorax color of the elytra. The great indentation of the vertex distinguishes this species from others of this country. Herbst's figure only tends to mislead, if indeed' it can be intended for this insect at all. It is too robust, the thorax is not represented as indented, and the elytra are punctured in strive, with large punctures. 2. A. GEMINATUS nob.-A numerous species; the color of the head and thorax often resembling those of the preceding species, but the acute, arcuated elevated line at the posterior angles, is 1836.] 596 TRANSACTIONS OF THE similar to that of the linearis F., of Austria, which it very much resembles. 3. A. POLITUS nob.-Much like arcuatus, but a little more robust, and of a brilliant color. Like the other species its elytra are denticulated at tip. Having examined numerous specimens, I find that it is not of a larger size than geminatus. 4. A. ARCUATUS nob.-A little larger than geminatus, and resembling it in the character of the elevated line at the posterior thoracic angles, but the antenna are much more slender and elongated. 5. A. GRANULATUS nob.-This species has three hardly visible fulvous spots on the elytra; one on the depressed base, one near the suture before the middle, and one behind the middle, also near the suture. I have a specimen in which these spots are not at all visible. The elevated line at the posterior angles of the thorax is short, but very obvious. 6. A. BILINEATUS Weber, nob.-In my printed description an error occurs. When describing the elytral vittpe, instead of "extended towards the tip, where it gradually approaches the scutel," I should have said suture instead of "scutel." 7. A. LATERALIS nob.-I stated in the description that the elytra are entire; I would add that they are not obviously denticulated at tip. 8. A. PUSILLUS nob.-The smallest North American species I have yet seen. The above species of Agrilus, excepting the first, I described in the Journal Acad. Nat. Se., and the Annals of the Lyceum of Nat. Hist., of New York, under the genus Buprestis, to which most entomologists yet refer their kindred species. [163] 9. A. FALLAX.-Elytra with about three spots on each, which exhibit a different reflection. Inhabits Indiana. Brassy-greenish: head green, sometimes cupreous on the vertex; impressed line hardly obvious: thorax with a dorsal and lateral indented line; the former more obvious behind, the latter [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 597 oblique and dilated; more or less tinged with cupreous; an arcuated, elevated line at the posterior angles; posterior angles acute: elytra with the basal indentation, subsutural spot behind the middle, composed of minute prostrate hairs, producing a different reflection from that of the general surface; tip denticulate: beneath blackish-brassy. Var. a. Dull cupreous; thorax brighter. Length more than one-fifth of an inch. Distinguished by the elytral spots offering a different reflection from the remainder of the surface. In some positions they are hardly obvious; but seen from before or behind they are distinct, particularly the posterior one. 10. A. PUTILLUS.-Thorax transversely indented before and behind the middle; elevated line of the posterior angle none. Inhabits Indiana. Body blackish-brassy: head greenish; longitudinal impressed line very distinct: thorax with a transverse indentation before, a much larger transverse indentation behind the middle, and a more profound lateral one parallel with the lateral margin; posterior angles destitute of an elevated line, retangular or rather more obtuse; elytra, basal indentation ovate-oblong, oblique; tip denticulated, from the suture to the middle concave; suture rather prominent. Length over one-tenth of an inch. Only three of the before mentioned species are destitute of an elevated line at the posterior thoracic angles, viz. the rificollis, bilineata and lateralis, to these we may add the cogitans Weber. From all these the present is separable by its inferior size, excepting the lateralis, which has no denticulations at the tip of the elytra. One of my specimens has the head green before. 11. A. OTIOSUS.-Line of the thoracic angles short and obtuse; front but slightly punctured. Inhabits Indiana. Body greenish, or brassy-blackish, rather slender: head with the punctures obsolete, excepting on the vertex, where they are not profound [164] or well defined; beneath the middle of the front with short whitish hairs: thorax with two slight indenta1836.] 598 TRANSACTIONS OF THE tions placed longitudinally, a more obvious one on the lateral margin, and another each side of the basal middle; elevated line of the posterior angles less than one-fourth of the length of the lateral edge, but slightly elevated and obtuse: elytra depressed from the suture to the middle; tip denticulated. Length nearly one-fifth of an inch. Resembles geminatus, but its form is rather more slender, the frontal punctures are obsolete, and the elevated line of the thoracic angles is much shorter and less distinct. 12. A. COGITANS Weber.-The thorax is described to be serrate; but on close examination the edge will be found to be entire, and the upper surface of the edge, or extreme margin only, is serrate. The body is more dilated than in any other of our species. [Belongs to Rhseboscetis Chevr. and was also described as B. ignara Fabr.-LEC.] TRACHYS F. 1. T. TESSELLATA F. 2. T. OVATA Weber, Obs. p. 76. Our species vary greatly or are very numerous. [These species belong to Brachys.-LEc.] METONIUS Say. Thorax short, wide, and deeply emarginate before for the reception of the head: not lobate behind: antennae subclavate, concealed when at rest in a groove of the thorax; body short, wide before and narrow behind: tibiae angulated, and when at rest the tarsi are applied to the outer edge: praesternum prominent to the mouth, and behind applied evenly to the poststernum by a transverse line. This genus differs from Trachys in the thorax being not lobed behind; in the praesternum terminating by a straight line; by the dilatation of the tibiae, &c. [This genus is the same as the subsequently described Pachyscelis Solier, which is united with Brachys by Lacordaire.-LEc.] 1, M. OVATUS nob. (Trachys) Ann. Lye. New York.-Those who will retain this species in Trachys must change the name to lieigatus, as the other is preoccupied in that genus. [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 599 2. M. PIURPUREUS.-Ovate, black; elytra purple. Inhabits Indiana. Body black: head with distinct punctures; front with an indented, [165] abbreviated line placed low down: thorax with scattered discoidal punctures; no lateral indentation: elytra purple; indented at the middle of the base and behind the humerus; punctures rather large but not deeply impressed, placed in series and obsolete behind: tibiae angulated. Length under three-twentieths of an inch. This insect is certainly congeneric with the preceding, but it cannot be placed in Trachys, or even in Aphanisticus, if pusillus, Olivier, can be considered as a type of it. APHANISTICUS Latr. A. GRACILIS nob. (Trachys) Ann. Lyc. New York.-The thorax is not laterally dilated and reflected. [Belongs to Taphrocerus Solier, which is united with Bracilys by Lacordaire.-LEC.] MELASIS Oliv. M. NIGRICORNIS nob., Journ. A. N. S. I was deterred from referring this species to Cerophytum Latr., by the character "le penultibme article des tarses bifide. Le corps est ovale." Our insect cannot therefore be the Melasis picea Beauv., which is referred to Cerop7ytum. ELATER L. t Tarsi not lobed beneath. 1. E. OBLESSUS nob. (discoideus Fabr.)-The Fabrician phrase, when describing the elytra, is, "elytra striata, atra, margine baseos lateralique late albo;" but as the whitish portion occupies about two-thirds of the whole surface and might lead to error, it would be better to say, elytra whitish, with the sutural margin and exterior edge, excepting at base, black. I change the Fabrician name, because it is preoccupied by Weber for a very different species of this country.* * Dr. Harris says that Weber's species here referred to, is the hamatus of Fabricius; and that Mr. Say does not seem to have known the Elater discoideus of Fabricius, which is quite distinct from the above named oblessus. 1836.] 600 TRANSACTIONS OF THE 2. E. MORIO F. Herbst. E. lxevigatus F. Herbst. E. piceus Degeer, Turton's Linn. [166] This species is subject to vary through all the intermediate gradations between smooth elytra and deeply striated elytra; which is the cause why several species have been made of it. The lateral edge of the thorax is grooved. [Belongs to the genus Melanactes Lec.-LEc.] 3. E. ABRUPTUS nob., Ann. Lye. Nat. Hist. New York. Like morio, but more convex above, more impressed at the junction of the thorax and abdomen; more densely and minutely punctured; a little more robust; each joint of the antennae originates much nearer the posterior angle of the preceding joint; and the lateral edge of the thorax is destitute of a groove, of a somewhat different form, and the head is not impressed, but is rounded on the front. [Belongs to Ludius, ante 1, 390.-LEc.] 4. E. ATTENUATUS.-iReddish brown; elytra somewhat attenuated, blackish and mucronate behind. Inhabits the United States. Body bright reddish-brown, almost sanguineous, with small close set punctures: head not indented before: antennae, joints not elongated: thorax convex, lateral margin arcuated; narrowed before; line from the posterior angle rectilinear, acute, diverging from the lateral edge so as to be as near to the inner edge: region of the scutel rather widely indented: elytra with smaller punctures than those of the thorax; with obsolete striae; terminal oblique third black; tip somewhat attenuated and mucronate: feet a little darker. Length four-fifths of an inch. A variety occurs of which the elytra are obscure, but still the terminal third, and the exterior margin also, are black. In a particular light is a slight sericeous effect. [Also a Ludius, ante 1, 392.-LEc.] 5. E. VIRIDIPILIS nob.-The thorax in form resembles those oculatus and myops F. but is proportionally longer. The posterior angles are curved considerably downward. It is rare. [A species of Chalcolepidius.-LEc.] [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 601 6. E. CYLINDRIFORMIS nob.-In the description " a prominent edge above the antennx, which disappears before;" instead of the three last words, read, which is obtusely emarginate. The head, thorax and base of the elytra have rather long, prostrate hairs; the remainder of the elytra has short hairs. Tarsi simply hairy beneath. It may be referred to the genus Campylus Fischer, but the head is inserted nearly to the eyes in the thorax; and the palpi are hardly filiform. [Belongs to Limonius.-LEc.] [167] 7. E. RUBRICOLLIS Herbst, Nob. (Journ. Acad. Nat. Sc.). This is the verticinus Beauvois, but I do not know which has the priority.* 8. E. LIMBALIS.-Thorax fulvous, disk black; elytra blackish, with a testaceous margin, Inhabits United States. Head blackish; antennae wide, deeply serrate; three basal joints taken together not longer than the fourth joint; second and third very short, equal, transverse; thorax fulvous testaceous; disc in the middle, basal and posterior part of the lateral margin black; elytra testaceous all around, and blackish along the middle: beneath black piceous; pectus with an oblique, fulvous spot near the posterior angles; feet piceous. Length less than half an inch. This is the limbalis of Melsh. Catal., and I have-it noted in my MSS. interrogatively as the limbalis of Herbst, but I have not now his work to refer to. 9. E. ECTYPUS.-Blackish brassy; antennae and feet rufous; thoracic spines very short. Inhabits United States. Blackish or dark brown, tinged with brassy; clypeus very obtuse, almost truncated before, not appressed; above plane, with two obsolete indented lines; antennae dark rufous, not dilated, and hardly serrate; second joint more than two-thirds the length * Dr. Harris remarks that Herbst's name undoubtedly has the priority; for that of Palisot de Beauvois does not seem to have been sanctioned by a description. 1836.] 602 TRANSACTIONS OF THE of the third; terminal joint not abruptly contracted near the tip: thorax convex; dorsal line obvious; spines short, their excurvature hardly obvious, carina nearly parallel with the exterior edge; scutel a little convex; elytra with punctured striae; interstitial spaces with numerous, small, definite, orbicular punctures; feet rufous; tarsi simple. Length nine-twentieths of an inch. It may be distinguished from the appressifrons nob., which it resembles, by the more convex thorax, of which the spines are much shorter and not much excurved; the antennae are more slender, and the terminal joint is not abruptly narrowed near its tip, and the punctures of the interstitial spaces of the elytra are obviously orbicular, and definite. [Belongs to Limonius.-LEC.] 10. E. PYRRHOS Herbst.-Elongated; the thorax is narrow, the spines [168] hairy; the joints of the antennae are in length about three times their greatest breadth, even the second joint is in the same proportion with respect to the third: the length of the antennae is equal to half that of the body: clypeus subquadrate, concave towards the tip. Length seven-tenths of an inch. [Belongs to Corymbites; Athous pyrrhicus Hald., A. vagrans Mels., and A. tequalis Mels. are synonyms of the female.-LEC.] 11. E. SULCICOLLIS nob. (E. parallelus Say, Ann. Lye. New York).-Dejean informs me that the name parallelus is preoccupied, and proposes to substitute for it that which I now give. An expressive name would be inversicollis, the thorax being as wide, or rather wider before than behind. [Belongs to Corymbites, ante 1, 391.-LEc.] 12. E. VIRIDIS nob., Ann. Lye. New York.-Antennae short: joints in their greatest breadth nearly equal to their length; second joint hardly half as long as the third: clypeus at tip not prominent, but only distinguished by a line: thoracic spines with a carinate line parallel to the exterior edge. [Ante, 1, 390.] 13. E. AURIPILIS nob., Journ. Acad. Nat. Sc.-I obtained another specimen in the N. W. Territory. It is remarkable for the deep indentations of the clypeus. [A species of Limonius.-LEc.] [Vol. V [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 603 14. E. SEMIVITTATUS nob., (Ibid.).-In the only specimen at present in my cabinet, is a transverse indented line in the middle of the lateral margin; the thoracic dorsal line is polished behind the middle. 15. E. OBESUS nob. (Ibid.).-The clypeus is not prominent, and the thoracic spines are not carinated; the elytra, in one specimen, are acuminated at tip: the nails are very robust on the basal half, which terminates at the middle in a prominent tooth, separated by a deep fissure. 16. E. VIRIDANUS nob. (Ann. Lye. Nat. Hist.).-The thorax has two orbicular indentations before the middle. 17. E. MANCUS nob. (Journ. A. N. S.).-Second joint of the antennae rather longer than the third. Clypeus not prominent. Inhabits New Hampshire, Harris.* [169] 18. E. CONVEXUS nob. (Journ. A. N. S.) — ith a good magnifier the interstitial lines appear to have minute punctures; the third and fourth, and fifth and sixth striae of the elytra are confluent before the tip. * [Among Mr. Say's suppressed descriptions is the following, which may be of use in determining the species, and is therefore worth preserving.] 18. E. LINTEUS.-Black; elytra whitish, tip and sutural edge black. Inhabits the United States. Body black: clypeus not prominent, rounded at tip: antennae robust, deeply serrate; second joint transverse, nearly orbicular, very small: thorax gradually narrowed before by a rectilinear edge almost to the anterior margin; an impressed line at base; posterior angles carinate, rather acute: scutel convex, acute behind: elytra whitish, with striae of dilated punctures; tip black; a narrow, black, sutural margin, and exterior edge, behind the middle, black: feet piceous: tarsi, fourth joint hardly shorter than the third. Can this be the mixtus Herbst? It is the deustus of Melsheimer's Catalogue? a name preoccupied by Thumberg for a species of Ceylon. [This description Mr. Say orignally arranged immediately after that of E. mancus, in the papers printed at New Harmony, during the summer of 1834, but omitted it with the following remark:] Le Conte says that it is the lugubris Beauv. [Afterwards described by Germar as Ampedus lugubris. —LEc.] 1836.] 604 TRANSACTIONS OF THE 19. E. CARDISCE.-Thorax rounded, convex, with an elongated lateral fissure at base. Inhabits the United States. Body, blackish: head with short, dense, prostrate, cinereous hair; clypeus elevated above the front, edge a little reflected: antennae nearly as long as the thorax, second joint shorter than the third: thorax elevated, convex, with a slight violaceous tinge, and short, prostrate, cinereous hair; regularly arcuated each side; lateral edge hardly raised, placed low down and obsolete before the middle; basal margin profoundly bisinuate, with an elongated fissure near the lateral angles and a small prominence in the middle; angles short, abrupt: scutel cordate, having a basal fissure: elytra, strife deeply impressed, third and fourth, fifth and sixth confluent before the tip; very short hair; interstitial lines convex, minutely rugulous, an obsolete paler spot in the middle and another beyond the middle: beneath slightly tinged with violaceous: tibix and tarsi dark rufous. Length three-tenths of an inch. I have taken it in Pennsylvania, and Dr. Harris in Massachusetts. It resembles convexus S., but the thorax is much more narrowed behind, &c. [Belongs to Cardiophorus.-LEC.] 20. E. DISCALCEATUS.-Clypeus prominent, triangularly impressed. Inhabits New Hampshire. Body hairy, rufous; discs of the thorax and elytra a little dusky; head densely punctured; clypeus prominent and obtuse before, with a larger triangular indentation: thorax a little dusky on the anterior margin; posterior angles a little excurved, obtuse, carinated line prominent, [170] acute, not parallel with the edge: elytra with the punctures of the strime not longer than broad: beneath much paler. Length nearly half an inch. The antennae are not longer than the thorax, and the terminal joint is not remarkably contracted near its tip. The individual was sent to me for examination by Dr. Harris. It resembles cucullatus S., but is destitute of tarsal lobes. [Belongs to Athous.-LEC.] [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY, 605 21. E. APICATUS. —Elytra bright rufous, black at tip. Inhabits New Hampshire. Body black, with short yellowish hairs: clypeus convex, anterior edge not obtusely rounded, declining, but distinct at tip: antennae dark piceous, rather shorter than the thorax, second and third joints subequal: thorax wider at the posterior angles; lateral edge rectilinear from the middle to the tip of the posterior angles, which are prominent and acute: elytra bright rufous, with a longitudinal black spot at tip: striae impressed, rather wide, punctured; interstitial spaces convex, punctured: tarsi piceous. Length nine-twentieths of an inch. The specimen was kindly sent to me by Dr. Harris for examination. Resembles sanguinipennis S., but is larger, with a black spot at tip of the elytra. 22. E. HAMATUS.-Blackish, thorax with golden hair; elytra whitish, with a dusky hooked line at tip. Inhabits Massachusetts. Body blackish piceous: antennae dull rufous, hardly as long as the thorax, second and third joints subequal, ultimate joint oval, not longer than the preceding one: thorax convex; posterior angles excurved, prominent, obtuse at tip; hairs golden, prostrate; carinated line parallel to the edge; elytra yellowishwhite, with a piceous vitta on the outer margin from the tip to near the middle, where it curves inward and backward towards the suture and tip; strim impressed and punctured: feet rufous. Length over two-fifths of an inch. Sent to me by Dr. Harris. [Belongs to Corymbites. —LEc] 23. E. FALLAX.-Clypeus appressed to the front anteriorly; posterior thoracic angles short. Inhabits New Hampshire. Body blackish-piceous, with yellowish sericeous hair: elypeus anteriorly confluent with the front: antennae about as long as the thorax; joints hardly longer than their greatest breadth: thorax narrowed before; [171] lateral edge a little arcuated; punctures minute; posterior angles short, rather wide, scarcely excurved; carina short; basal margin somewhat depressed, with 1836.] 606 TRANSACTIONS OF THE a longitudinal indentation in the middle, and a slender impunctured line extends to the anterior edge: elytra striate, the strix not very obviously punctured, third and fourth confluent before the tip; greatest breadth posterior to the middle: tibiae and tarsi rufous. Length two-fifths of an inch. This species was sent to me by Dr. Harris. The particular disposition of the hair on the elytra of the specimen gives the appearance of a broad band at base, another beyond the middle, and a subsutural spot in the middle, blackish. [Also a Corymbites.-LEc.] 24. E. ARMUS.-Black; shoulder rufous. Inhabits United States. Body black: clypeus with large punctures, somewhat triangularly depressed, anterior edge obtusely arcuated, distinct from the anterior part of the head: antennae, joints as broad at tip as long, second and third equal, terminal one large ovate acute, not abruptly'smaller towards the tip: thorax convex; punctures rather distant, larger before; lateral edge subrectilinear, a little undulated; posterior angles short, their exterior edge very much arcuated, so that the tip points inward and backward, carina diverging and distant from the edge, and not very obvious: elytra with punctured strice, third and fourth confluent before the tip; interstitial spaces punctured; humerus rufous. Length one-fourth of an inch. Different from scapularis S., of which the tarsi are lobed. It inhabits the Middle States, and Dr. Harris sent me one from Massachusetts. [This is the type of Gambrinus Lee. Trans. Am. Phil. Soc, 10, 435; it is united with Limonius by Lacordaire.-LEc.] 25. E. AGONUS.-Posterior thoracic angles very short and rounded; antennae longer than the thorax. Inhabits Massachusetts, Harris. Pennsylvania. Body violaceous-blackish: clypeus very obtuse before and hardly distinct from the anterior part of the head; punctures small, antennae rufous, the tip of the ninth joint reaching the tip of the posterior thoracic angle, third joint a little longer than [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 607 the second, which is globular; terminal joint obtuse at tip: thorax with small punctures, and like the head, with prostrate hair; lateral edge slightly arcuated to each extremity; at base an impressed line in the middle, and an oblique one each-side; posterior angles very short, obtusely rounded: elytra with [172] short hairs, dull rufous, with punctured strie, of which the third and fourth are confluent before the tip: feet and venter on the margin rufous. Length seven-twentieths of an inch. The posterior thoracic angles are unusually short and rounded. [Belongs to Limonius.-LEC.] 26. F. VERNALIS Hentz.-Also inhabits Indiana. I obtained several specimens in the autumn, on the root of an overturned tree. [Belongs to Corymbites.-LEC.] 27. E. HIEROGLYPHICUS Harris, Catal.-Bronzed-black; elytra pale rufous, with two undulated black bands. Inhabits Massachusetts and New Hampshire. Harris. Pennsylvania. Body short, robust: head with yellow or prostrate hair: clypeus angulated before and but little elevated: antennas rufous; second joint half as long as the third; last joint not larger than the preceding one: thorax convex, covered with prostrate, yellow hair, lateral edge regularly but not prominently arcuated; posterior angles excurved, subacute, slightly carinated, with a small sinus at their inner origin: elytra pale yellowish rufous, striated; strie with very distinct punctures, third and fourth confluent before the tip; interstitial spaces punctured; a blackish undulated band from the humerus, is connected by a subsutural blackish vitta, with another undulated band behind the middle, which is decurrent along the suture nearly to the tip; beneath tinged with rufous; feet rufous. Length less than half an inch. In some specimens the posterior band is also decurrent along the exterior margin nearly to the tip. [Also a Corymbites. —LE.] 1836.] 608 TRANSACTIONS OF THE 28. E. CHORIS.-Thorax rugulous, black, with yellow hairs; elytra yellowish, bifasciate with black. Inhabits Indiana. Body black: antennae piceous, dull yellowish at base: thorax longitudinally rugulous, black, with numerous, golden, prostrate hairs; posterior angles acute, but not much elongated; carinated line prominent, elongated, arcuated: elytra pale yellowish, with a black spot at base, an angulated band on the middle, interrupted into a spot towards the suture, and another black angulated band, dilated near the suture, which it does not reach, but passes abruptly backwards towards the tip; strise as broad as the interstitial lines; beneath tinged with piceous: feet pale yellowish. Length one-fifth of an inch. I took three individuals. [A species of Cryptohypnus.-LEC.] 29. E. DORSALIS nob. Jour. Acad. Nat. Sci.-This name was given by [173] Paykull to an insect which proved to be the marginatus Fabr. But if it be determined, nevertheless, that the present name be changed, that of mellillus may be substituted. It is found in Indiana, and I obtained a specimen at New Orleans. Ante, 108.] 30. E. PECTORALIS.-Yellowish; thorax rounded; head and elytral band black. Inhabits Missouri. Body yellowish, with a slight rufous tinge; punctures hardly perceptible: head blackish-piceous: clypeus very obtusely rounded at tip to the eyes: antennae and palpi pale yellow: thorax with the lateral edge much and regularly arcuated to the origin of the spines, where it becomes a little excurved; spines short, acute, carinated: scutel suborbicular: elytra with obsolete strive; a transverse black band behind the middle running down the suture and exterior margin; pectus with the middle segment dilated. Length less than one-tenth of an inch. Resembles areolatus nob., but is much smaller, the thorax more rounded, the spines smaller, the middle segment of the pectus is [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 609 dilated, &c. A variety from Dr. Harris has the elytral fascia extending to the tip, and in size is a little longer. [Belongs to CryptohLypnus.-LEc.] 31. E. CURIATUS.-Blackish; elytra yellowish, with a black band; thorax with a fissure each side at base. Inhabits United States. Body blackish-livid, with minute punctures: clypeus obtusely rounded, edge reflected: antennae rufous, rather robust, a little serrate; second joint two-thirds the length of the third; ultimate joint hardly longer than the preceding one: thorax with a fissure in the posterior edge near the spines; spines not carinate, but the lateral edge is somewhat reflected: scutel oblong, concave: elytra with well impressed, punctured striae; yellowish-white, with a dusky band on the middle expanding a little on the margin and suture: feet pale yellow. Length three-tenths of an inch. I obtained three specimens in June. [A species of Cardiophorus which was afterwards cited by Erichson as Elater areolatus Say, to which it bears no resemblance. It is the only species from the Atlantic slope of the United States known to me, having the ungues toothed: Say has given an incorrect measurement; it should read, length threetwentieths of an inch.-LEc.] 32. E. SANGUINIPENNIS nob. Jour. Acad. Nat. Sci.-Closely resemblespprseustus Fabr., whieh however, has the colors much more vivid; the punctures rather larger and more dense, particularly those of the interstitial lines of the elytra; the thoracic spines longer; and the second and third joints of the antennae of our species are more cylindrical. [174] 33. E. INFLATUS nob. Ann. Lye. Nat. Hist. —Resembles holosericeus Fabr., but is still more robust, the thoracic spines are longer, and the thoracic punctures more obvious. Inhabits also Massachusetts. Harris. 34. E. FENESTRATUS nob. (Ibid.)-As respects the elytral spot, it may be compared to the biguttatus Fabr., but is not much longer than the head and thorax of that species. [No such species is described by Say.-LEc.] 1836.] 39 610 TRANSACTIONS OF THE 32. E. OBLIQUUs.- Piceous; thoracic disk and elytra blackish; the latter with an oblique spot before the middle. Inhabits Indiana. Body yellowish-piceous, punctured, with yellowish hairs: head black: clypeus not much elevated, obtusely angulated at tip: labrum piceous: antennae distinctly serrate; second joint two-thirds the length of the third; fourth to tenth subequal; ultimate one not suddenly contracted near the tip: thorax blackish on the disk; lateral edge arcuated near the anterior angles, rectilinear from before the middle to the tip of the spines; spines moderate, not distinctly carinate: elytra with punctured striae, and slightly punctured interstitial lines; a very oblique yellowish band from the humerus, gradually dilating to the suture, and terminating before the middle, leaving a rather large black scutellar area: pectus paler than the postpectus: feet paler than the pectus: tarsi and nails simple: venter with an obsolete darker vitta each side. Length nearly one-fifth of an inch. This species somewhat resembles the areolatus nob. To this division of the genus must be added those species which I have described under the following names, viz.:-badius, erosus, rotundicollis, plebejus, erytropus, collaris,'rubricus, mendica, silaceus, quercinus, basilaris, and areolatus, as well as the stigma and nigricollis of Herbst. [Say has described no species under the name of mendica.LEC.] tt Tarsal joints lobed beneath. 36. E. LOBATUS nob.-This species Germar thinks is the castanipes Herbst.; but it certainly cannot be castinipes Fabr. The anterior part of the clypeus agrees with that of Campylus Fischer. 37. E. BILOBATIUS.-Dark chestnut; front indented; spines obtuse; second and third joints of the tarsi lobed beneath. Inhabits Indiana. Body dark chestnut, punctured, with numerous short hairs: head [175 ] with large, very dense punctures: front a little concave: clypeus not prominent, rather depressed between the antennae: antennae a little paler; second joint rather more than half as long as the third; terminal joint abruptly smaller near the [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 611 tip, so as to appear like two joints: thorax with the punctures as large as those of the head, but less dense; spines obtuse, not elongated, destitute of carina: elytra with deep striae, in which are rather large, close set punctures; interstitial lines convex with minute punctures: feet, color of the antennae, honey-yellow; second and third tarsal joints extended beneath into a membranaceous, rounded pulvillus. Length less than seven-tenths of an inch. This species may be distinguished by the obtuse thoracic spines, and the lobed second and third tarsal joints. [Belongs to Asaphes.-LEC.] 38. E. INQUINATUS.- Honey-yellowish, head and suture blackish. Inhabits United States. Body small, honey-yellow, with short hair: head dusky or blackish: antennte pale: clypeus terminating anteriorly in a rectangle: thorax dusky on the anterior margin; lateral edge rectilinear; posterior angles acute; base each side with an elongated fissure: elytra, striae distinctly punctured; sutural margin widely dusky at base, and tapering to the tip: beneath reddish brown: feet yellowish; tarsi with the penultimate joint only, obviously lobed. Length under one-fifth of an inch. This species occurs in Pennsylvania, and Dr. Harris obtained it in New Hampshire, and from North Carolina. [I received from Dr. Harris a specimen of Dolopius p2auper Lee., as this species, but as the tarsi are not lobed it cannot be so referred: I am rather inclined to believe it the same as Elate'recticollis Say, which is an Adrastus.-LEc.] 39. E. MEMNONIUS.-Brown, more or less dark: antennae rufous, compressed; length of the joints at least twice their terminal breadth; longer than the thorax: head densely punctured; front concave, anterior edge depressed in the middle by the concavity, but still elevated: thorax densely, not confluently punctured, convex, laterally arcuated, widest in the middle; posterior angles very little excurved, and at their tips somewhat incurved; carinated line nearly parallel with the edge, elevated and acute; basal edge with an acute sinus near the posterior 1836.] 612 TRANSACTIONS OF THE angles: elytra with punctured impressed strie; punctures nearer each other than their own length; interstitial spaces convex, densely punctured; third and fourth strive abbreviated and confluent at tip; apical margin a little elevated: beneath, margins and feet paler. Length less than four-fifths of an inch. [176] E. nemnonius Herbst, Melsh. Catal. p. 42. Inhabits Middle States. Terminal joint of the antenna abruptly smaller at tip, and the thorax is longitudinally indented behind the middle. [The type of Asaphes Kirby, and described by him as A. ruficornis.-LEC.] 40. E. BARIDIUS.-Resembles the preceding, but is much larger, more robust, the thorax more rounded each side, the second and third striae of the elytra abbreviated and confluent at tip. Length over nine-tenths of an inch. Of this I have seen but one specimen, which was sent me for examination by Dr. Harris. It was taken in North Carolina. [Also an Asaphes, and subsequently described as Hemicrepidius Thomasi Germ.-LEc.] 41. E. HEMIPODUS nob. (Ann. Lye. N. Y.)-Black-brown; antennae with obconic-compressed joints; not obviously serrate; second joint more than half the length of the third: thoracic spines rather short and obtuse: the carina parallel with the outer edge: tarsi, first, second and third joints extended beneath into pulvilli: thorax with a slight fissure on the basal margin, near the posterior angles. [Also an Asaphes.-LEC,] 42. E. SOLEATUS.-Chestnut; elypeus prominent, rounded, second and third tarsal joints extended beneath into a prominent lobe. Inhabits Indiana. Body dark chestnut brown, punctured; with very numerous, short hairs, not prostrate: clypeus prominent before, and obtusely rounded: antennae a little serrate, rufous; second joint not longer than broad, not more than half the length of the third: [Vol. VI, AMERICAN PHILOSOPHICAL SOCIETY. 613 thorax rather convex, dorsal indentation none, excepting sometimes a very slight one at base; lateral edge rectilinear from before the middle -to the tip of the spines; spines not excurved, prominent, subacute, carinate; the carina nearly parallel to the exterior edge: indentation between the thorax and abdomen deep; scutel somewhat indented: elytra with punctured strie, and with minutely and irregularly punctured interstitial lines; beneath rufous; second and third joints of the tarsi each extending beneath into a prominent, flattened, membranaceous lobe, that of the third much more obvious, rounded at tip, and extending much beyond the tip of the penultimate joint, which is very small. Length from seven-twentieths, to more than eleven-twentieths of an inch. This varies considerably in size, and the prominent obtuse clypeus, together with the elongated, membranaceous lobe of the antepenultimate [177] tarsal joint distinguish it from other species. Resembles cucullatus. [Belongs to Dricrepidius.-LEC.] 43. E. CUCULLATUS nob. (Ann. Lye. N. Y.)-May be distinguished from soleatus by the clypeus being obviously indented above, and more obtuse, almost emarginate on the anterior edge; the antennae are more slender, and the last joint not, or hardly longer than the preceding one: thorax more slender, and the spines more obtuse, shorter, and rounded at tip: the larger lobe of the tarsi is not so prominent. The thoracic spines resemble those of haweorrhoidalis Fabr., but are more excurved. [A species of Pedetes, ante, 1, 397.-LEc.] 44. E. DILECTUS nob. (Ibid.)-The penultimate tarsal joint of this species is produced beneath into a membranaceous lobe. Near the description of bilineatus Web., Fabr. [A Monocrepidius, ante, 1, 395. —LEC.] 45. E. VESPERTINUS Fabr.-The penultimate tarsal joint is minute, but is extended beneath into a dilated membranaceous lobe, half the length of the last joint. This species varies considerably; the elytra have generally a connecting black band beyond the middle; they are rarely nearly all black, with one or 1836.] 614 TRANSACTIONS OF THE two small spots, tip and humerus testaceous: the thoracic vittae are sometimes reduced to very small spots: scutel always testaceous. [Also a Monocrepidius.-LEC.] 46. E. CIRCUMSCRIPTUS Germ.-The penultimate tarsal joint is at least half the length of the last, and is produced beneath into a lobe. [Nothing of the kind exists in the species that I consider as Germar's, and which that author places in Cryptohypnus: for me it is a Monocrepidius, without tarsal lobes. What insect Say had in view, I am unable to determine.-LEc.] 46. E. BISECTUS nob. (Journ. Acad. Nat. Sc.)-Penultimate tarsal joint remarkably short above, hardly visible, but produced beneath into a dilated lobe, two-thirds the length of the ultimate joint. [Ante, 113.] 48. E. EXTRIATUS nob.-This is the E. geminatus nob. (Ann. Lye. N. Y.) Elytra destitute of striae; joints of the tarsi, excepting the terminal one, with dilated lobes beneath. I change the name, as that of geminatus was previously given by Germar to a Brazilian species. [Belongs to Lissomus.-LEC.] 49. E. BELLUS S. (Journ. Acad. Nat. Sc. iii. p. 168.)-The penultimate tarsal joint is dilated beneath into a lobe. A very pretty little species. 50. E. BINUS. —Black; with two large testaceous spots on each elytron. Inhabits Indiana. Body black, with short yellowish hairs, almost sericeous, punctured: clypeus rounded at tip, somewhat prominent: antennae scarcely serrate, rufous; second joint more than half as long as the third; terminal joint [178] not, or hardly longer than the penultimate one: thorax on the lateral edge rectilinear from before the middle to the tip of the posterior spine, which is rather long, acute, carinate: scutel black: elytra with punctured striae, and minutely punctured interstitial lines; on each a large testaceous spot, extending from the base nearly to the middle, not reaching the suture, and a smaller one beyond the middle: pec[Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 615 tus in the middle piceous: feet honey-yellow: tarsi, penultimate joint minute, but extended beneath into a lobe, almost half the length of the ultimate joint. Length from one-fourth to two-fifths of an inch. [Belongs to Dicrepidius.-LEc.] 51. E. SCAPULARIS.-Clypeus concave; antennae longer than the thorax; humerus yellowish. Inhabits Indiana. Head greenish black: clypeus somewhat prominent, obtusely rounded at tip, much indented above: antenna longer than the thorax, serrate; second joint one-third the length of the third, which is dilated at tip like the following ones, and somewhat longer than the fourth: thorax greenish black, rather long; sides a little contracted before the spines; spines robust, not attenuated, rounded at tip and yellowish: scutel piceous: elytra dull yellowish on the basal margin; with rather deep striae, punctured; interstitial lines rounded with transversely confluent punctures: feet piceous: tarsi with the second, third, and fourth joints dilated beneath into rather short lobes, that of the third much wider and more prominent; fourth joint more than half the length of the third; ultimate joint equal in length to the first, and equal to the second, third and fourth taken together. Length less than two-fifths of an inch. This is rather slender, and the yellowish bases of the elytra are distinguishing and obvious characters. [Belongs to Pedetes.-LEC.] 52. E. ACANTHrUS.-Brown; clypeus concave above; spines compressed, short, rounded. Inhabits Indiana. Body rather slender, punctured: head blackish brown, with small punctures more distant than the length of their diameters: clypeus prominent, obtusely rounded before and concave above: antennae longer than the thorax, not serrate; second joint more than half the length of the third: thorax blackish-brown; long, lateral edge rectilinear, hardly broader behind than before; anterior angles a little prominent, and slightly truncate; punctures not discoidal, small, profound, and more [179] distant than the length of their own diameters; spines very short, rounded at 1836.] 616 TRANSACTIONS OF THE tip, compressed, without carina, and reflected a little from the side: elytra paler, with dilated, punctured striae, and transverse wrinkles on the interstitial spaces: beneath, excepting the pectus, rather paler than the elytra: tarsi, second and third joints produced beneath into membranaceous lobes, that of the third more prominent; fourth joint minute, hardly wider than the base of the ultimate joint. Length three-tenths of an inch. Very much like cucullatus S.; is smaller and more slender; the punctures of the head and thorax are not discoidal, as in that species, and the thoracic spines are entirely destitute of carina, are more obtuse, compressed, and reflected from the sides. Rare. [Also a Pedetes.-LEc.] 53. E. CLARICOLLIS.-Black; antenne, mouth, and feet yellowish; thoracic spines very short, without carina. Inhabits Indiana. Body black, polished; punctures minute and remote: clypeus not prominent, tip a little reflected and rounded: antennae hardly as long as the thorax, not serrate, yellowish; first joint robust; second joint but little shorter than the third; terminal joint not longer than the penultimate one: mouth, excepting the tip of the mandibles, honey-yellow: thorax polished, a little narrowed at the anterior angles; lateral edge almost rectilinear, or hardly perceptibly arcuated from near the anterior angles to the base; spines very short, obtusely rounded, without any carina: scutel large, angulated behind: elytra with punctured strim; interstitial lines with minute distant punctures: pectus, in the middle near the mouth, honey-yellow: feet pale yellow; tarsi, fourth joint small, but produced beneath into a dilated lobe; terminal joint shorter than the first. Length one-fourth of an inch. The thorax is remarkably polished. [Unknown to me; probably a Monocrepidius.-LEC.] 54. E. FINITIMTS.-Dusky, obsoletely margined with rufous; tarsi, fourth joint lobate. Inhabits North Carolina. Body with dense, small punctures, black brown; vertex longi[Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 617 tudinally indented: clypeus obtusely rounded before, prominent: antennae pale rufous, third joint a little longer than the second, terminal joint not obviously contracted abruptly towards the tip: thorax rather narrowed anteriorly, with an obsolete, dull, rufous margin and dorsal line; [180] posterior angles very slightly excurved, rather long, acute, with the carinated line very near to the edge: scutel dull rufous: elytra with the striae impressed, not confluent, and in which the punctures are not very obvious; interstitial lines depressed; an obsolete, rufous, humeral spot, and another on the middle of the exterior submargin: beneath pale rufous: feet paler; penultimate joint of the tarsi with a membranaceous lobe. Length three-tenths of an inch. The body is more elongated than either dilectus S., or bisectus S. I am indebted to Dr. Harris for an opportunity to examine a specimen. [This is a variety of Mlionocrepidius vespertinus.-LEc.] 55. E. DECOLORATUS Harris MSS.-Black; elytra, antennae and feet rufous. Inhabits New Hampshire and Pennsylvania. Body blackish, with pale hairs and minute punctures: clypeus with larger punctures than the thorax; two obsoletely impressed diverging lines; anterior edge subangulated, and the angles so depressed as to appear confluent with the anterior part of the head: antennae rufous, a little hairy; second joint two-thirds the length of the third; last joint longer than the first, not abruptly contracted towards the tip: thorax convex blackish; base with a fissure each side; posterior angles pointing backward, rather obtuse and somewhat broad, with the carinated line rather short, and not much elevated; elytra dull rufous; impressed, slightly punctured strive, more deeply indented at base, and the third and fourth confluent before the tip: feet pale rufous; fourth joint of the tarsi not so distinctly lobed as the preceding joints. Length half an inch. Rare in Pennsylvania. Approaches the description of E. semirufus Germar, which, however, I believe to be smaller. [Belongs to Asaphes.-LEc.] 1836.] 618 TRANSACTIONS OF THE ttt Tarsi dilated, operculiform. 56. E. MARMORATUS F.-Our largest species of this division that I have seen. I have found it as far north as Canada, and Mr. Nuttall presented me a specimen from Arkansa. It occurs both in Pennsylvania and Indiana, and Dr. Harris sent me a specimen which was found in N. Carolina. The thorax may be described as unequal, as it has several indentations; the pectus has deeply impressed tarsal grooves; the clypeus is concave. [181] 57. E. OPEROULATUS S., Ann. Lye. N. Y.*-Belongs to this division. Dr. Harris sent me specimens from Massachusetts and New Hampshire. [Probably the species afterwards described by me as Adelocera brevicornis is here intended.-LEc.] 58. E. AURORATUS.-Blackish, sprinkled with golden scales; pectoral tarsal impressions not profound. Inhabits New Hampshire. Body blackish, punctured, with bright yellow scales: clypeus not conspicuously concave before: thorax convex; a longitudinal, impressed, but not much dilated line, obsolete on the anterior third; lateral edge regularly arcuated to the origin of the posterior angles, which are rather broad, acute, and extending outward and backward, with their exterior edge perfectly rectilinear to the tip, basal edge sinuous; elytra destitute of elevated lines at base: pectus, tarsal impressions not deeply marked, but distinct, concave: tarsi rufous. Length eleven-twentieths of an inch. Sent to me for examination by Dr. Harris. The lateral edge of the thorax is not undulatedly arcuated as in E. marmoratus F., and E. operculatus S. [Belongs with the two following species to Adelocera.-LEc.] 59. E. OBTECTUS.-Thorax with a much dilated groove; elytra with elevated lines at base, one of which extends beyond the middle. Inhabits Massachusetts. * [This is an error. There is no species in the Ann. Lye. N. Y. bearing: the name of operculatus. Is it not the erosus S. Ann. Lyc. i., p. 258?-H.] [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 619 Body blackish piceous: clypeus transversely concave before: thorax rather short and wide; dorsal groove much dilated, the top of its lateral elevations being equidistant from the middle of the exterior edge; exterior edge arcuated, not undulated; lateral margin broadly depressed; posterior angles rather broad, extending outwards and backwards, their exterior edge rectilinear to the tip: elytra with elevated, obtuse lines at base, one of which is obliquely elongated and is obsolete behind the middle: tarsal groove of the pectus none. Length three-fifths of an inch. For this species I am indebted to Dr. Harris. It is as large as marmoratus F., and operculatus S., to the latter of which it approaches in being destitute of the tarsal grooves of the pectus, and in the short wide thorax; but it differs from it in the more regular arcuation of the lateral edge of the thorax, the exterior edge of the posterior angles [182 ] being rectilinear, and in the crimped appearance of the base of the elytra, &c. 60. E. DISCOIDEUS Weber.* Remarkable by the golden hairy head and sides of the thorax. This is the pennatus Fabr.; but Weber's name has the priority, and must therefore be adopted. 61. E. LEPTURUS. Blackish; spines acute; elytra with approximated series of punctures. Inhabits United States, Pennsylvania, Indiana, and North Carolina. Harris. Body black-brown, punctured, rather slender: clypeus concave, truncate at tip, and emarginate each side at the insertion of the antennae: antennae rufous, serrate; second joint not half the length of the third: thorax with a dorsal, slightly indented line; lateral edge not arcuated; a little narrowed before, and contracted at the spines; spines excurved, acute: scutel rounded behind: elytra with approximate series of deep punctures, with an appearance of striae, the series alternately larger: pectus, tarsal grooves obvious. * "Observationes Entomologicse." This work, which was presented to me by Professor Wiedemann, was published in the same year with the Syst. Eleut.; but, as Fabricius quotes Weber's work, the priority of the latter is evident. 1836.] 620 TRANSACTIONS OF THE Length two-fifths of an inch. Resembles discoideus Weber, but is always destitute of the golden hair of the head and thorax. It is the lepturus of Melsheimer's Catalogue. [An Adelocera, but does not differ from A. impressicollis.LEc.] 62. E. IMPRESSICOLLIS S., Ann. Lye. N. Y. i., p. 260.-Resembles lepturus S.; but may be distinguished by its ferruginous color. 63. E. RECTANGULARIS S. Ann. Lye. N. Y. i. p. 260 —The posterior angles of the thorax are rectangular, and the antennae remarkably short. [Belongs to Lacon.-LEc.] 64. E. AVITUS.-Blackish; rather long; scales yellow and black; spines acute, hardly excurved. Inhabits Indiana. Body black, with a slight tinge of piceous, punctured; scales intermixed, black and bright yellow; rather slender: clypeus hardly elevated before; anterior edge very obtusely arcuated, a little concave; antennae serrate, rufous; second joint small, subglobular, thorax with an obtusely indented line behind the middle; lateral edge very slightly arcuated, and slightly excurved at the spines; spines very slightly excurved, acute, not carinated: scutel concave, rounded behind; elytra [183] with hardly perceptible, raised lines: punctures profound, densely and irregularly set: feet piceous: pectus, tarsal grooves none. Length eleven-twentieths of an inch. Smaller than E. marmoratus F., and more slender, with a more equal thorax; larger than E. lepturus S., discoideus Webern impressicollis S., and rectangularis S., and the punctures of the elytra are not in regular series. It seems to approach nearer to E. operculatus S., but the elytra are more obtuse at tip, and have much more profound, large, and close set punctures. I have not now an entire specimen of the latter species, and therefore cannot compare with the anterior part of the body. [A species of Adeloccra.-LE. ] [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 621 t t t t Claws pectinated. [The species of this division, except 69 and 70, belong to Cratonyclhus.-LEc.] 65. E. CORTICINUS S. (Journ. Acad. Nat Sc., iii., p. 174.)The second and third joints of the antennae are rounded, equal. The basal margin of the thorax has a fissure each side, near the lateral spines. It varies in size. The smallest one that I have seen is seven-twentieths of an inch. Can itbe the dispar of Herbst? 66. E. CINEREUS Weber.-Second joint of the antenae about half the length of the third: the thorax is more rounded at the sides than the preceding. It varies considerably in size. The basal margin of the thorax has a fissure each side. Length from three-tenths to seven-tenths of an inch. The former size is rare; but the mrore usual length is about half an inch. This is the vulgaris and pilosus of Melsheimer's Catalogue. It resembles the brunnipes Ziegler; but the thoracic punctures are rather larger, and less crowded, the thoracic spines are longer and more acute, and the second joint of the antennae is a little longer in proportion to the third.* [184] *[Among Mr. Say's manuscripts is a description of the cinereus, under the rejected name of fissilis, which, as it contains the characters of this species somewhat in detail, it may be proper to insert here.] E. fissilis.-Brown; base of the thorax with a fissure near the posterior angles. Inhabits the United States. Body chestnut-brown, punctured, somewhat sericeous with short hairs: head convex: clypeus rounded at tip: antennee rufous; second joint half as long as the third; ultimate joint not abruptly contracted near the tip: thorax with the lateral edge regularly arcuated, not [184] contracted near the spines; spines rather short and somewhat obtuse, subbicarinate; basal margin, near the lateral spines, with a distinct fissure: elytra with punctured striae, and depressed, minutely punctured interstitial lines; suture somewhat paler: feet dull rufous: tarsi beneath with rather dense hairs: nails pectinated. Length over half an inch. The thoracic fissures readily distinguish this species. I formerly marked it in my cabinet interr ogatively as the brevicollis Herbst; but it can hardly be that species, as no notice is taken of the fissures. Can it be the cinereus Weber? 1836.] 622 TRANSACTIONS OF THE 67. E. COMMUNIS Schonherr, is much like the preceding, but the thorax is canaliculate. 68. E. INSIPIENS S. (Ann. Lye. N. Y., i., p. 267.)-The fissure in the posterior margin of the thorax, near the spines, is distinct. 69. E. RECTICOLLIS S. (Journ. Acad. Nat. Sc., iii., p. 168.)* Distinguished from the preceding species by the lobed joints of the tarsi. In those species the joints have projecting hairs beneath, but not lobes. The clypeus descends rather low, and is almost rectangular at tip. [Belongs to Adrastus.-LEc.] 70. E. QUIETUS.-Black; antennae and labrum rufous; palpi and feet pale yellow. Inhabits Indiana. Body black-brown; sericeous with short, yellowish hairs; slender; with numerous, minute, but not close set punctures: clypeus very obtusely angulated in front, almost rounded: an*[The following description, which was marked to be omitted by Mr. Say, contains several characters not laid down in the Journal of the Acad. Nat. Sciences on the page above quoted. It seems to apply rather to a variety of the recticollis that was proposed originally by Mr. Say as a distinct species, under the name of E. inscius, but was subsequently referred to the previously described E. recticollis. For the reasons above stated, it may be useful to insert the rejected description in this place. T. W. H.] E. RECTICOLLIS (inscius S., MSS.). Brown; clypeus subangulated before; suture dusky. Inhabits Indiana. Body light brown, somewhat sericeous, with yellowish hairs, and with numerous minute punctures: clypeus but little elevated, tip obtusely angulated: antennae hardly serrate, pale rufous; first joint rather long, arcuated, robust; second and third joints sibequal: head dusky: thorax dusky on the middle; lateral edge nearly rectilinear, arcuated at the anterior angles, and a little excurved at the spines; not elongated; spines acute, not carinate; posterior edge with a fissure from which a line extends forward upon the margin: elytra with punctured striae and minute punctures on the interstitial lines; sutural margin dusky: beneath piceous: pectus honey-yellow: feet honey-yellow: tarsi, third and fourth joints lobed beneath. Length less than one-fourth of an inch. [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 623 tennae rufous, not serrate; first joint rather long, and a little arcuated; second and third joints subequal, the second rather longer and more robust: labrum rufous, prominent: thorax rectilinear on the lateral edge from near the anterior [185] angles, where it is hardly arcuated, to the tip of the spines; spines acute, carinate; the carina, as in the preceding species, forms the apparent edge, and extends more than half the length of the thorax; posterior edge with a fissure each side, extending in an obvious line upon the margin: scutel angulated obtusely behind: elytra with punctured striae and minutely punctured interstitial lines: beneath black piceous: feet pale yellow; tarsi, third and fourth joints lobed beneath; nails pectinated with but few rather robust teeth. Length less than one-fifth of an inch. Closely resembles the preceding, but is more slender, the pectens of the nails have fewer teeth, and the clypeus is much more obtuse at tip, and the color is different. [Also an Adrastus.-LEC.] 71. E. PERTINAX.-Black; antennae and feet rufous; punctures sparse. Inhabits Pennsylvania. Massachusetts, Harris. Body black, immaculate, with distant grayish hairs: clypeus with large punctures, anteriorly obtusely rounded and elevated, the edge a little reflected: antennae rufous; third joint a little longer than the second: thorax with distant punctures and hairs; lateral edge nearly rectilinear behind the middle, the posterior angles divaricating but slightly outwards; base with the lateral fissures rather long: elytra with regular series of punctures, the strise not being impressed, excepting at base and the sutural one: feet rufous. Length seven-twentieths of an inch. 72. E. TENAX.-Black; antennae and feet rufous; posterior thoracic angles not excurved. Inhabits Massachusetts. Closely resembles E. pertinaxe S., but is much smaller; the punctures of the thorax are much more numerous, the posterior angles not at all excurved: elytra with the striae distinctly im1836.] 624 TRANSACTIONS OF THE pressed and punctured, the interstitial spaces with rather large punctures: feet rufous. Length less than three-tenths of an inch. For this species I am indebted to Dr. Harris. [186] EUCNEMIS Ahrens? Mannerheim. t Pectus not inflected at the edge, nor canaliculate beneath, to receive the antennae. * Tarsi simple. 1. E. MUSCIDUS S. (Elater muscidus Ann. Lye. N. Y., i. p. 256.) The largest known species of the United States. 2. E. TNICOLOR S. (Elater unicolor Ann. Lye. N. Y. i. p. 255.) Also a large species. 3. E. HETEROCERUS.-Light brown, sericeous; three last joints of the antennae largest. Inhabits Indiana. Body light reddish brown, sericeous, with bright yellow hair; punctures minute, universal: antennae, first joint as long as the three next together; second joint smallest; third nearly as long as the two next; fourth, fifth, sixth, seventh and eighth short, equal; remaining joints each nearly as long as three of the preceding ones together, and somewhat dilated: thorax with an indented line at base; spines prominent, acute: scutel rounded behind: elytra with impunctured strive: pectus on the lateral margin slightly concave. Length half an inch. The singular form of the antennae will distinguish this fine species from any other yet known. It will form a separate genus. [Belongs to Phlegon Lap., a genus which I afterwards described as Euryptychus.-LEc.] 4. E. QUADRICOLLIS.-Head and thorax with large crowded punctures; posterior thoracic angles nearly rectangular. Inhabits Indiana. Body piceous black, with yellowish hairs: head with crowded, large punctures, longitudinally confluent on the vertex: antennae rather distant at base, not seated in approximated sinuses, but [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 625 under frontal elevations; second joint more robust than the third, and equally long; fourth joint rather longer than the third; remaining joints obconic, subequal, the last a little longer: palpi, terminal joint oval: thorax transverse quadrate, with punctures like those of the head, but not much confluent; anterior angles rounded; lateral edges nearly parallel, very slightly contracted towards the posterior angles, which are nearly rectangular, a little acute, not continued backward beyond the line of the base: elytra with punctured striae and minutely punctured interstitial lines: pectus with less crowded punctures than the thorax: [187] middle segment very broad; no groove: feet, like all beneath, dark piceous: tarsi a little paler. Length over one-fourth of an inch. This species is not perhaps in all its characters perfectly coincident with those of the genus, particularly in the remote origin of the antennae; but the form of the praesternum and the great inflection of the head agree very well. [Unknown to me.-LEC.] 5. E. FRONTOSUS.-Antennae submoniliform; thorax indented each side of the middle. Inhabits Indiana. Body blackish piceous, with short yellowish hair, punctured: front longitudinally indented: antenna ferruginous, serratomoniliform; basal joint arcuated, obliquely truncated at tip; second joint arcuated at base: thorax with a longitudinal impressed line, and an indentation each side of the middle; posterior angles prominent: elytra, striae not deeply impressed: feet piceous. Length one-fifth of an inch. The very short and submoniliform joints of the antennae, as well as the general form of the body, give to this species a resemblance to the monilicornis Mannerh., but the thoracic indentations, &c., distinguish it. [Belongs to EnEathion, and was afterwards described by me as Epiphanis canaliculatus. —LEc.] 6. E. RUFICORNIS S. (Melasis ruficornis, Journ. Acad. N. S. iii. p. 165.)-This species having a very small spine, and slight indentation instead of a recipient cavity, may perhaps be placed 1836.] 40 626 TRANSACTIONS OF THE here. By the very robust antennas it seems to approach the genus Nematodes Latr. [This and the next belong to Tharops.-LEc.] 7. E. OBLIQUUS.-Elytra black, inner portion, bounded by a line from the middle of the base to beyond the middle of the length, yellowish. Inhabits Indiana. Length less than one-fifth of an inch. In general form, and in its antenna, this species resembles the r.ficornis S. * * Tarsi, terminaljoint short and dilated. 8. E. ATROPOS.-Thorax with two impressed dots and dorsal line. Inhabits Indiana. Body blackish piceous, somewhat sericeous, with bright yellow llair, minutely punctured: head with the hairs radiating from the middle of the front: antennae, first joint as long as the three next together, hardly arcuated; second joint at least as long as the fourth; third nearly equal to the fourth and fifth together; remaining joints rather larger than the fourth and fifth: thorax convex before, almost vertical at the sides; [ 188] like the head, dark chestnut; a well impressed dot each side, a little before the middle: an impressed, acute, longitudinal line behind the middle, extending obsoletely to the anterior edge; spines prominent, acute: scutel with a slightly impressed line: elytra blackish, with impunctured strive; punctures towards the base somewhat transversely confluent: pectus with the lateral margin slightly concave: tarsi, penultimate joint extended beneath into a lobe, a little dilated and truncated. Length three-tenths of an inch. Behind each of the dots of the thorax is an abbreviated, obsolete, impressed, transverse line. The dots of the thorax are more anterior than those of the pygmmeus Fabr. [Belongs to Emathion.-LEc.] t Pectins canaliculate on the lateral margin. 9. E. CALCEATUS.-Reddish brown: an elevated line on the front over the base of the antennae. Inhabits Indiana. [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 627 Body reddish brown, or chestnut, slightly sericeous, and with minute punctures: head blackish, with an obvious, transverse, raised, glabrous line over the antenna, a little advanced in the middle: antennae chestnut; first joint about as long as the head, somewhat robust, obliquely truncated at the end; second hardly shorter, but less robust than the third, attenuated and arcuated at base, at its junction with the first joint; fourth joint a little shorter than the third; remaining joints gradually a little longer to the tip, subequal: thorax dusky, not elevated; dorsal line hardly perceptible, even at base; spines prominent, acute: elytra rather slightly striate; strie impunctured: beneath particularly sericeous: pectus with the lateral groove well marked: tarsi, penultimate joint with a short, rather broad lobe beneath. Length from one-fifth to three-tenths of an inch. [This is a species of Fornax, subsequently described by me as Isarthrus spretus. The lobe of the tarsi is not very obvious; so little so, that I failed to see it in my original specimen, though it is quite visible in some others in a better state of preservation that I have since examined.-LEc.] 10. E. CYLINDRICOLLIS.-Black; thorax longitudinally and widely indented behind. Inhabits Indiana. Body blackish, a little'sericeous, subcylindric, minutely punctured: antenna dark rufous, shorter than the thorax; first joint cylindrical, hardly arcuated, at base rather abruptly narrowed, at'tip obliquely truncated, blackish; second joint obconic, attenuated and arcuated at base; third longer than the two following ones together; remaining ones to the last, subequal; terminal one nearly as long as the third: thorax [ 189] obscurely subiridescent, subcylindric, the sides being almost parallel; not remarkably elevated; behind the middle a much dilated, oblong triangular, rather deeply indented line, extending to the base; spines acute, not much elongated: scutel rounded at tip: elytra with the striae obsolete, the subsutural obvious: pectus with the lateral groove very obvious: tibiae and tarsi rufous; penultimate tarsal joint produced beneath into a dilated, obtuse lobe. Length less than three-tenths of an inch. The dilated elongate triangular indentation, or dilated dorsal 1836.] 628 TRANSACTIONS OF THE line, extending from the undule to the base of the thorax, is probably somewhat similar to that of the capucinus Ahrens; but the general form is much more cylindric. [Also a Fornax.-LEC.] 11. E. CLYPEATUS S. (Elater c., Ann. Lye. N. Y. i. p. 266.) 12. E. AM(ENICORNIS.-Black; antennae pectinate, second and third joints, and feet rufous. Inhabits Indiana and New Hampshire. Body small, black, densely punctured above and beneath: antennae with a process on each joint excepting the three basal ones, black, the second and third joints dull rufous: thorax convex, simple; posterior angles a little excurved, acute, without carinated line; base without fissures: elytra, third and fourth strive only half the length of the elytra: feet rufous. Length over three-twentieths of an inch. Resembles E. pygmxus Fabr., but the thorax is without indentation. I obtained two specimens in Indiana, and received one from Dr. Harris. [Belongs to Eucnemis; when laid on its back, this insect will make a feeble attempt to spring, like a genuine Elater. —LE.] - t ~t Pectus canaliculate each side of the middle. 13. E. TRIANGULARIS S. (Elater t., Journ. Acad. N. S. iii. p. 170.) Antenna, first joint slightly arcuated, obliquely truncate at tip; second obconic, small, arcuated at base: thorax with an impressed line behind the middle; anterior margin piceous. It occurs in Indiana as well as Missouri. [Belongs to Microrhagus.-LEC.] 14. E. HUMERALIS.-Black; elytra rufous at base. Inhabits Indiana. Body black, minutely punctured, and with minute hairs; front with an obsolete indented line: antennae rather hairy; first joint slightly arcuated, obliquely truncate at tip; second obconic, arcuated at base; third shorter than the two following ones together; remaining joints [190] subequal, to the last, which is a little longer; thorax convex, but not much elevated; elytra [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 629 striate; basal fourth rufous; feet rufous: pectus distinctly canaliculate each side of the middle. Length three-twentieths of an inch. Note.-I am indebted to Count Mannerheim of St. Petersburg, Russia, for this excellent observations on this genus. His descriptions are detailed and perspicuous. I have adopted, for the present, his views of this genus. [Also a Jlicrorhagus.-LEC.] THROSCUS Latr. T. CONSTRICTOR. This species is the approximate analogue of the adstrictor Fabr., of Europe, to which I had always referred it: but on comparing our insect with a specimen of the adstrictor, for which I am indebted to the politeness of Professor Germar, I am inclined to consider it a distinct species, and I give to it the above name, which that distinguished entomologist proposes in his letter. This insect, compared with the adstrictor, is of a paler color, and a little different in form; being less attenuated behind; in size it is much the same; it is also somewhat more obviously punctured. 1836.1 630 BOSTON JOURNAL [From Boston Journal of Natural History, Vol. 1, No. 2, May, 1835, pp. 151-203.] Descriptions of new North American COLEOPTEROUS INSECTS, and Observations on some already described. Communicated Feb. 1835. In this number we present to our readers a part of the hitherto unpublished entomological papers of the late Thomas Say. This distinguished and lamented American naturalist was engaged in preparing them for publication in the Boston Journal of Natural History, when his labors were prematurely arrested by the disease which proved fatal to him, on the tenth of October, 1834. In justice to his memory, it becomes our duty, without delay, to publish these posthumous papers, and thereby to secure to his names, as far as possible, the right of priority. These papers consist of descriptions of New American Coleopterous and Hymenopterous insects, and remarks upon some already described. The Hymenoptera will appear in our next number.-Pub. Committee. BRACHINUS Weber. B. ALTERNANS? Dej.-A specimen occurred near New Orleans, which, so far as I have been able to compare [152] the characters, nearly corresponds with this species; but as the head is deficient in the specimen, I cannot determine positively; and, furthermore, the circumstance of the second and fourth elytral costae not being obviously elevated, leads to a doubt. SANDALUS Knoch. 1. S. PETROPIIYA Knoch.-I observed this insect, frequently, on the flowers of a resinous plant common in the prairies of Missouri. [Vol. T. OF NATURAL HISTORY. 631 2. S.? BRUNNEUS.-Blackish-brown; antenna sericeous-brown; thorax with two indentations on the disk. Inhabits Indiana. Body blackish-brown, punctured, oblong; head with small punctures, rather prominent between the antenna, above which it is somewhat indented; antenae as long as the thorax or rather longer, brown sericeous; thorax with small punctures, anterior and posterior angles dentiform; disk with a small orbicular indentation each side behind the middle, and an irregular one on the basal middle; posterior margin each side of the middle a little concave; scutel orbicular; elytra with numerous somewhat large punctures; not in strie, with four slightly elevated lines or nervures, the inner one abbreviated before the tip, the others confluent near the tips. Length from two-fifths to three-fifths of an inch. This insect approaches, in character, nearer to Sandalus than to any other genus. In that genus the mandibles are remarkably falcate, and the tooth is on the inner side, towards the base; they are also covered to the middle by a membrane or coriaceous process; the tibiae are quadrilateral and denticulate, and the tarsi beneath are clothed with very dense hairs. In our insect the conformation of the antenna is the same as in the female of Sandalucs, excepting that they are much more elongated; the mandibles are less prominent, and have the tooth on the superior side near the tip, which is therefore emarginate, or rather bifid, and are destitute of any membranous covering at base; the tibiae are not quadrangular, the tarsi are simple beneath, and the mentumr is somewhat transversely oval, with a robust dentiform process before. It can be separated under the name of Zenoa. I have found it under the bark of decaying trees. Vid. Gen. Acalestes Leach, or Cbrio. Probably C. bicolor, but it does not appear to agree with Fabricius's description. [Previously described as JLclasis piceus Beauv.; a variety was subsequently described by me as Zenoa vulnerata.-LEc.] LYCUS Fabr. 1. L. MODESTUS.-Black; thorax fulvous, with a black disk. Inhabits Ohio. Body black, opke; antenne, second joint minute, nearly half 1835.] 632 BOSTON JOURNAL the size of the third: mandibles? rufous; palpi, terminal joint rather oval than securiform; thorax broader than long, as wide as the base of the elytra, reddish-fulvous, with a black disk extending to the base, disk a little convex, without any carinate line, each side a little concave, lateral edge nearly rectilinear, the posterior angles not excurved, and not very acute at tip, anterior edge regularly arcuated: elytra black, with elevated, longitudinal lines, and in the intervening spaces are numerous transverse, elevated lines, and a small longitudinal one; wings black, tinged with rufous on the costal base. [154] The insect was lost before the measure of its length was taken. [Belongs to Eros Newman, Anarhynchus Guer.-LEc.] 2. L. oBLIQUUS.-Black; margin of the thorax and basal margin of the elytra fulvous. Inhabits Mexico. Body rather slender, black; antennae compressed, serrate; palpi white, terminal joint black; thorax with a wide lateral fulvous margin and an elevated fulvous line in the middle, posterior angles rather prominent and acute; elytra with elevated longitudinal lines and transverse ones in the intervening spaces, forming large subquadrate punctures; a dilated fulvous margin at base, occupying the surface to the sutural stria, before the middle becoming narrower until it terminates on the costal edge beyond the middle; coxm white. Length seven-twentieths of an inch. Allied to dcmiidiatus Fabr., but the antenna are not flabellate. 3. L. CANALICULATUS. —Black; thorax with a yellowish margin and an impressed line on the basal margin. Inhabits Missouri. Mandibles pale; antennae serrate, third joint rather shorter than the fourth; thorax yellowish rufous, a large, black, subquadrate spot on the disk, anterior edge very prominently arcuated; basal margin with an abbreviated impressed longitudinal groove; elytra with elevated longitudinal lines and intermediate transverse ones. Length one-fourth of an. inch. [Also an Eros.-LEC.] [Vol. I. OF NATURAL HISTORY. 633 OMALISUS Geoffr., F. 1. O. MARGINELLUS Fabr. (Lycus) Syst. Eleuth. Inhabits Pennsylvania; Massachusetts, Harris. [155] [This and the five following species belong to Eros.-LEC.] 2. 0. COCCINATUS.-Sanguineous; head and beneath black. Inhabits Pennsylvania and Indiana. Body sanguineous; head black; mandibles pale reddish; thorax darker than the elytra, its depressions dusky; two longitudinal elevated lines, distant in the middle, and meeting on the anterior and posterior edges of the thorax, enclosing a rhomboidal space; from their middle an elevated line proceeds to the lateral edge; the margin elevated: scutel blackish: elytra with four elevated lines; interstitial spaces with a longitudinal slightly elevated line, and transverse ones about the distance of their own length from each other; wings blackish: beneath black. Length over two-fifths of an inch. 3. 0. MUNDUS.-Bright sanguineous; antennae black. Inhabits Indiana. Body entirely bright sanguineous: antennae, excepting the three basal joints, black: eyes black: thorax with two longitudinal elevated lines, distant in the middle and meeting before the anterior and posterior edges of the thorax, enclosing a rhomboidal space; from their middle an elevated line passes to the lateral edge, and an elevated abbreviated line on the posterior submargin: elytra with four elevated lines; interstitial spaces with a longitudinal, very slightly elevated line, and transverse ones, about the distance of their own length apart; venter black: tarsi dusky. Length one-fourth of an inch. Much like the preceding, but is only half as large, and its colors are differently arranged. 4. 0. IHUMERALTS F. (Lycus) Syst. Eleuth. [1561 Inhabits also Indiana; Massachusetts, Harris. It varies in having the humeral margin obsolete. 5. 0. SCULPTILIS.-Piceous; thorax with elevated lines, yellowish each side. 1835.] 634 BOSTON JOURNAL 0. pleurites? Knoch. in Melsh. Catal. Inhabits Missouri and Pennsylvania. Antennae black, second joint minute; third joint as long as the others: head black; clypeus anteriorly a little produced, impressed in the middle; thorax with three elevated, parallel lines before the middle, and two behind the middle, a lateral somewhat oblique line proceeding to the lateral edge, which is obtusely a little contracted in that part: elytra with four elevated lines, interstitial spaces with transverse, elevated, somewhat irregular lines nearer to each other than their own length. Length about one-fourth of an inch. 6. 0. OBLIQUUS.-Black; base of the elytra and each side of the thorax yellowish. Inhabits Indiana. Body black: antennae, second joint more than half as long as the third: front tinged with ferruginous: thorax reddish-yellow, with elevated lines enclosing a turbinate space in the middle, with an elevated line extending from its centre to the anterior edge, and an oblique one each side, extending to the lateral edge; edge elevated; disk black, extending to the base: elytra reddishyellow on the basal half, terminated obliquely at the middle; elevated longitudinal lines and intermediate transverse ones; a quadrate black spot, including the black scutel. Length less than two-fifths of an inch. [157] PHENGODES Hoffm. P. PLUMOSA Oliv. P. testaceus Leach, Zool. Journ. 1824. Not uncommon for a short period in the autumn. Attracted by the candle, they enter the house in the evening, and fly repeatedly against the ceiling in their efforts to escape. LAMPYRIS Lin. 1. L. TRILINEATA.-Grayish-brown; elytra with the margin and three lines yellowish. Inhabits Mexico. Head on the front, pale carneous or yellowish: antennae blackcinereous, basal joint whitish: thorax varied with dull yellowish, [Vol. I, OF NATURAL HISTORY. 635 blackish and rosaceous, sometimes a blackish vitta trilobate at base, and a lateral marginal spot: scutel blackish: elytra graybrown, the edge and sometimes the margin all around, and two or three lines on each elytron, yellowish: beneath blackish, generally varied with rosaceous and yellowish. Length over half an inch. Var. a. An oblong-subquadrate, marginal, yellowish spot behind the humerus. A large species, wider and shorter than L. versicolor Fabr., which it somewhat resembles in the character of the elytra, as it does L. angulata nob., in that of the thorax. 2. L. BIFARIA.-Antennae with two processes from the base of each joint. Inhabits North Carolina, Harris. Body black, densely punctured: head with a carinate [158] line: antennae at the base of each joint, excepting the first, second and ultimate ones, with two opposite processes at least as long as the joint ajid nearly as thick: thorax fulvous, with a dilated black vitta not reaching the anterior edge; an impressed line; elytra confluently punctured, appearing granulated. Length nearly seven-twentieths of an inch. Remarkable by the form of the antennae. [Afterwards described as Pollaclasis ovata Newman, and is placed by Lacordaire in Caltptocephalus.-LEc.] CANTHARIS Lin. 1. C. TRICOSTATUS.-Elytra widened and rounded laterally, with three elevated lines. Inhabits Pennsylvania; tMassachusetts, Harris. Body black, with small dull yellowish hairs: head piceous at base; front yellow, oval margin blackish; before the eyes and base of the mandibles yellow: antenne, second joint nearly equal to the third, which is obviously shorter than the following ones: maxillary palpi much longer than the labials, black: thorax transverse, yellow; disk fuscous; each side widely concave; anteriorly widely truncate; posteriorly widely emarginate: elytra laterally roundedly dilated; three prominent lines; humerus prominent: feet dark piceous; knees paler. 1835.] 636 BOSTON JOURNAL Length nearly half an inch. Var. Thoracic margin rufous; front obscure. The width of the elytra. and the form of the elevated lines are like some species of Lamnpyris; but although the palpi are very unequal, yet those of the maxilla3 are not acute at tip, and the antennae are distant. [Belongs to Podabrus; afterwards described as Telephorus Bennettii Kirby.-Lec.] 2. C. INVALTDA.-Blackish; sides of the front of the thorax, and margins of the elytra, yellowish. Inhabits Indiana. [159] Body brown-black, covered with short hairs: head each side beneath the antennae yellowish: mandibles yellowish at base: antennae, first and second joints yellowish beneath: thorax margined, black, each side yellowish; dish rather unequal: elytra rather rough irregularly, with three or four obsolete nervures; base of the exterior margin of the suture and elevated humerus, yellowish: pectus each side and before, yellow: venter, segments laterally margined with yellow. Length less than one-fourth of an inch. Var. a. Margin and suture of the elytra yellowish to the tip. It differs from rufipes nob., and scitula nob., in being more robust and hairy; from angulata nob., which it most resembles, by the entirely black feet, yellowish humerus and basal elytral margins, yellow lateral ventral margins, somewhat more dilated terminal joints of the palpi, &c. [I have not identified this species.-LEc.] 3. C. PERCOMIS.-Black, thorax rufous, immaculate. Inhabits Massachusetts, Harris. Body black, somewhat polished: antennae with the basal joint tinged with piceous; second joint less than one-third the length of the third, which is a little shorter than the fourth: thorax transversely oval, bright rufous, the edge a little elevated and dusky: elytra with a slightly uneven appearance, not amounting to punctures or granulations. Length nearly one-fifth of an inch. I have seen but one specimen which was presented to me by Dr. Harris. [Vol. I. OF NATURAL HISTORY. 637 [Belongs to Silis, and is the female of the species afterwards described by me as S. longicornis. —LE.] 4. C. BIDENTATA nob. Journ. A. N. S., may prove to be a Silis Meg., but as my specimen is imperfect, I cannot determine. MALTHINUS. [160 ] M. MARGINILIS nob. (Molorchus) Journ. A. N. S. 1824, read to the Society the preceding year. Malthinus latipennis? Germar, Spec. Novae, p. 72, 1824. DASYTES Payk. Fabr. To this genus, as I now understand it, belong several species, which I published under the genus Malachiuls; such as terminalis nob., &c. TILLUS Fab. T.? TERMINATUS.-Black; terminal joint of the antennae as long as the head and thorax. Inhabits United States. Body black, densely punctured and with numerous cinereous hairs: eyes reniform, emargination very profound: antennae, radical joint suboval; second joint globular; third, fourth, fifth and sixth, very short, transverse, approximated; seventh, eighth and ninth, rather larger, serrate; terminal one greatly elongated, longer than the head and thorax, and about three times as long as all the preceding joints conjunctly, much compressed, linear, with dense minute black hairs, tip and base rounded: labrum rounded at tip: mandibles bifid at tip: thorax cylindrical, hardly narrowed at base, margin rufous: tarsi distinctly five articulate; first joint longer than the second; penultimate one bilobate: nails dentated: abdomen sanguineous; terminal segment black. Length rather more than one-fourth of an inch. I obtained two specimens of this curious insect, at the [ 161] cantonment of Major Long's party near Council Bluff on the Missouri river. It occurs also in Indiana and Pennsylvania. By the form of the tarsi, palpi and thorax, it approaches the present genus; but the extraordinary conformation of the antennae seems to require a separation from the other species, at least in a distinct subgenus. 1835.] 638 BOSTON JOURNAL It varies in having the rufous thoracic margin very narrow and even interrupted on the lateral margin. [Afterwards placed as a distinct genus Macrotelus Klug, Monophylla Spin., both of which names were preoccupied; I have therefore substituted for them the name Elasmoccrus.-LEC.] PRIOCERA Kirby. P. INORNATA.-Black-piceous; antennae and palpi yellowish; maxillary palpi with the last joint rather small. Inhabits Indiana. Body elongated, blackish-piceous, with pale hairs, punctured: head, punctures somewhat confluent, so as to present a rather granulated appearance: antennae honey-yellow, terminal joint hardly larger than the preceding one: labrum piceous, obtusely emarginate: mandibles piceous at base: maxillary palpi with the terminal joint small: thorax with an obtuse tubercle each side of the middle, on which is an indentation; an impressed, transverse line before the middle and a contraction behind the middle; an indentation on the basal margin; punctures not profound, transversely confluent: elytra with deeply punctured stripe: coxpe and tarsi honey-yellow. Length two-fifths of an inch. This species agrees with all the characters of the present genus, as laid down by Kirby, with the exception of the magnitude of the terminal joint of the maxillary palpi, which is much smaller than that of the type of the genus. It is rare. [Belongs to Cmatoclera.-LEc.] [162] To this genus, which was separated from Tillus by Kirby, the following species appear to belong. TILLUS BICOLOR nob. Journ. A. N. S. vol. 5, p. 194. TILLUS UNDULATUS nob. ibid. p. 174. CLERUS Fab. 1. C. QUADRISIGNATUS.-Posterior two-thirds of the elytra black, with two broad whitish bands. Inhabits North Carolina. Harris. Body rufous, somewhat hairy; antenna black: palpi rufous, dusky at base: thorax with an angulated impressed line: elytra black, basal third rufous; a broad yellowish-white band on the [Vol. I. OF NATURAL HISTORY. 639 middle and a narrower one near the tip; more obviously and densely punctured at base: feet black. Length two-fifths of an inch. Very different from C. ichneumoneus F., and trifasciatus S. by the bands of the elytra. The middle one of the latter is rufous or fulvous, and of the former black, and as long as wide, whilst in the present species the middle band is not so long as the width of the elytra, and the posterior band is at least half its size and of the same color. 2. C. sANGUINEUS. —Elytra sanguineous; head and thorax dusky. Inhabits United States. Body dark piceous: antennae, terminal joint paler: thorax with a longitudinal dorsal, and lateral rounded indentations: scutel dark piceous: elytra with numerous, obvious, profound, irregularly disposed punctures: venter and feet somewhat paler. Length about one-fifth of an inch.. [163] Found in most parts of the Union. Dr. Harris sent me an individual from Massachusetts. [Belongs to Thaneroclerus.-LEc.] 3. C. OCULATUS.-Thorax and margin of the elytra yellowish, the former with two black dots. Inhabits Massachusetts. Head black: antennae yellowish: thorax yellowish, cylindrical, with a black dot on each side of the middle: elytra black, with the suture, exterior and terminal margins yellowish; regular series of large punctures: feet yellowish. Length over one-fifth of an inch. Sent to me for examination by Dr. Harris. [An Enoplium afterwards described as Peloniunm marginipenne Spin.-LEC.] 4. C. UNDATULUS.-Elytra black, with a zigzag cinereous band near the middle, and a simple one behind. Inhabits New Hampshire. Body sanguineous, punctured, hairy: head blackish: labrum, antennae and palpi rufous: thorax with an angulated, deeply impressed line on the anterior submargin; anterior margin black1835.] 640 BOSTON JOURNAL ish: elytra black, with a very small rufous portion at base; before the middle a deeply zigzag narrow cinereous band in the form of a W, the middle angle pointing anteriorly, wider on the lateral margin; anterior to the band are large punctures in regular strise; posterior band broader, cinereous, not undulated: postpectus with a black middle. Length one-fifth of an inch. May be distinguished from nigrifrons S. and nigrpes S. by the intermediate angle of the anterior band pointing forward, and from dubius F., which it closely resembles, by its blackish head, middle of postpectus, and by the form of the posterior band, which is not undulated as in that species. It was sent to me for examination by Dr. Harris. [Belongs to Thanasimus, and afterwards described as abdominalis Kirby, which name being preoccupied was changed by Klug to nubilus, without recognizing the identity with Say's species.LEC.] ~ [164] 5. C. HUMERALIS S. Journ. Acad. Nat. Sc. vol. 3, pt. 1, 1823. C. humeralis Germar, Sp. Novae. 1824. TRICHODES Fab. 1. T. NUTTALLI Kirby, Trans. Linn. Soc. vol. 12. T. apivorus Germar, Sp. Novae, p. 81. It has also received a name in Dejean's Catalogue. 2. T. VERTICALTS.-Blackish; head yellow, with a black vitta; feet and base of the elytra yellowish. Inhabits United States. Blackish, somewhat bronzed: head yellowish, with a black vitta on the vertex: thorax somewhat cylindric, a little larger in the middle: elytra shorter than the abdomen, not meeting at the suture, a little narrowed to the tip, which is rounded, densely and irregularly punctured, punctures rather large; a large, yellowish spot extends from the base nearly to the middle: feet yellowish. Length three-twentieths of an inch. Var. C. teneltus. Thorax dusky: elytra entirely pale yellowish white, at tip only a little dusky. [Vol. I. OF NATURAL HISTORY. 641 Var. A. Thorax with a lateral abbreviated vitta on the anterior margin: spot of the elytra slender, and nearer the suture. Dr. Harris sent me a specimen from Massachusetts. I have obtained it on the common Hickory (Carya) in June. [Belongs to JHyj ocera.-LEc.] ENOPLIUM Latr. 1. E. LATICORNE.-Black; front and each side of the thorax fulvous. [165] Inhabits North Carolina. Body black, punctured: head fulvous: mouth, eyes and antennae black; the latter, with the three ultimate joints as broad as long, subquadrate, narrowed at base, the last one oval: thorax fulvous, of nearly equal width; a transverse rectilinear, indented line on the anterior submargin, and indented points each side: elytra with regular strie of large punctures, much wider than the interstitial lines. Length less than one-fourth of an inch. The only specimen I have seen was sent to me by Dr. Harris for examination. [Belongs to Ichnea Lap.-LEC.] 2. E. DAMICORNE F. (Tillus.)-In his description Fabricius says, "Antennarum articulis duobus ultimis dilato-compressis, acutis," but there are, of course, three dilated ultimate joints. PTINUS L. P. HUMERALIS.-Reddish-brown; thorax quadrituberculate; olytra with two bands widely interrupted by the suture. Inhabits Pennsylvania; Massachusetts, Harris. Head pale reddish-brown, with incumbent pale ferruginous hair; vertex glabrous: thorax reddish-brown, with incumbent, pale ferruginous hair; an acute, elevated tubercle on each side, and two longitudinal obtuse ones on the disk, separated by a groove: scutel with prostrate, cinereous hair: elytra dark reddish-brown, somewhat paler at base, with rigid elevated hairs and regular striae of rather large, impressed punctures; two remote whitish bands interrupted at the suture. Very closely allied to P. fur F., but the body is less [166] 1835.] 41 642 BOSTON JOURNAL rounded; the punctures of the elytra are smaller, and thoracic grooves less profound. DORCATOMA Herbst. D. SIMILIS.-Rounded, blackish; head dark piceous; elytra with two stria and a half. Inhabits North Carolina, Harris. Body rounded, very little oval, convex, punctured; with short, yellowish hairs: antennae dull rufous; not very robust; basal joint piceous; antepenultimate joint extending inwards into a conic process, and exhibiting the form of an equilateral triangle, shorter than the preceding part of the antennae; two ultimate joints equal: elytra with three lateral striae, of which the superior one is half the length; humerus elevated, compressed, acute. Length less than one-tenth of an inch. The D. bicolor Germar has a sanguineous thorax, and the oculata S. is larger, its antennae more robust, and the terminal joint arcuated. IHYLEC(ETUS Latr. H. LUGUBRIS.-Elytra and postpectus black; abdomen and feet honey-yellow. Inhabits Indiana. Body punctured, with short hairs; labrum tinged with piceous: antennae, third joint obscure yellowish; vertex with a glabrous line: thorax with an indented line and a little unequal each side; scutel glabrous and carinate in the middle: elytra with slightly elevated lines; wings dusky, nervures black: beneath black: feet and abdomen honey-yellow. [167'] Length from two-fifths to nearly half an inch. 9 Head rufous: antenna black, three basal joints yellowish: thorax and pectus rufous. Var. a. Elytra dull yellowish on the basal half. I observed it in considerable numbers, on the 16th of April, flying about a prostrate sugar maple, and running briskly upon it. It is infested by a species of Gamasus. [Unknown to me.-LEc.] [Vol. I. OF NATURAL HISTORY. 643 CUPES Fabr. 1. C. CINEREA.-Brownish-cinercous; elytra with fuscous spots and undulations. Inhabits Indiana, Ohio, and Louisiana. Body pale brownish-cinereous; head on each side above the eyes, with a series of three tubercles, of which the posterior one is convex, the middle one is most prominent and acute, and the anterior one is at the superior base of the antennae; eyes prominent, black, polished; antennae nearly as long as the body, robust: thorax with a carinate line on the middle, widely impressed each side and with four indentations on the anterior margin; anterior angles emarginate: elytra with elevated lines and intervening series of large regular punctures, several abbreviated dark reddish-brown lines and spots which form about three undulated bands, of which one is near the base, one on the middle, and one near the tip: venter paler, somewhat testaceous. Length over seven-twentieths of an inch. This is the second species of this rare genus that has yet been discovered; I obtained numerous specimens in the vicinity of New Harmony, Indiana, and one near Springfield, Ohio, and the specimen from Mr. Barabino proves that it inhabits a considerable portion of the [168 ] Union. The species is widely different from the capitata, which I have not found in this region. [The following description of the foregoing species was found among Mr. Say's papers, and, as it contains some particulars not noticed above, we have thought proper to insert it in this place.Pub. Com.] C. CINEREA.-Cinereous; elytra with abbreviated blackish lines. Inhabits Indiana. Body cinereous, covered with minute scales: head inequal: thorax inequal, anterior angles not excurved: elytra with largely punctured strie, the interstitial lines convex, subequal, the alternate ones a little larger; numerous abbreviated fuscous or blackish lines, hardly to be traced into three or four very oblique bands. Length seven-twentieths to two-fifths of an inch. 1835.] `G44 BOSTON JOURNAL A larger species than the capliataa Fabr., and very distinct, though the inequalities of the head and thorax are somewhat similar. It is common about old frame houses. I have received a specimen from Mr. Barabin6. [ (C. concolor Westwood, Zool. Journ. 5, 440, and C. trilineatct Mels., do not appear to differ from this spccies.-LEC.] SILPHA. S. CAUDATA S., Jour. Acad. Nat. Sci. 1823. S. TUBERCULATA Germar, Sp. Novae, 1824. IPS Fabr. 1. I. OBTUSA.-Black; elytra each with two nearly orbicular rufous spots. I. 4-notata? 3lMelsh. Catal. Body oval, convex: antenne piceous: head and thorax [1691 with small, regular, subequidistant punctures: elytra punctured, regularly rounded at tip, and rounded at the sutural angle: slightly elevated transversely on the posterior margin; each elytron with two rufous, rounded spots, of which one is at the middle of the base, and the other beyond the middle of the elytron; beneath piceous black. Length from three-tenths to seven-twentieths of an inch. The largest species I have seen; the name 4-notata is preoccupied. 2. I. 4-SIGNATA.-Black; elytra each with two yellowish spots, of which the basal one is sublunate. L 4-signlata Melsh. Catal. Body oval, deep black: antenna piceous: head and thorax with.small, regular, subequidistant punctures: elytra punctured, very obtusely rounded at tip, almost truncate; each elytron with two yellowish spots, slightly tinged with rufous; the basal one arcuated so as to enclose the humerus; posterior one behind the middle transversely oval, not sinuated; terminal lateral margin obscurely piceous: beneath piceous-blackish. Length slightly more than one-fifth of an inch. Very similar to the Niticdulafasciata Oliv., but it may be distinguished by its uniformly small spots. The Engis confluenta [Vol. IL OF NATURAL HISTORY. 615 nob., strictly belongs to this genus, as well as the Xitidulafasciata and sanguinolenta of Olivier. 3. I. 4-MACULATA.-Black; elytra with a basal and terminal ferruginous spot. I. 4-maculata Melsh. Catal. Body black, polished, oblong-oval, punctured: clypeus, at tip, tinged with piceous; antenne piceous: elytra [170] with a large ferruginous spot at the middle of the base, and another somewhat longer one at tip of each: feet and tip of the venter rufous. Length more than one-tenth of an inch. [Belongs to Engis.-LEC.] 4. I. VITTATA.-Blackish-brown; elytra with whitish, abbreviated vittae. Inhabits Arkansaw. Body dark brownish; elytra with a whitish vitta abbreviated beyond the middle and abruptly curved at base towards the scutel: another much abbreviated, somewhat oblique one, hardly reaching the middle of the humerus, and an intermediate one hardly more than one-fourth of the length of the elytra; tip obliquely truncated. Length less than three-twentieths of an inch. This species was presented to me by Mr. Nuttall, who obtained it during his expedition to Arkansaw. [Unknown to me.-LEc.] HYDROPHILUS Fabr. H. CASTs. —Oblong-oval, black; palpi rufous; thorax with an oblique line each side. Inhabits Louisiana. Body black, polished: head with a dilated, hardly impressed oblique line each side before, in which are scattered punctures with short hairs, another narrower impressed line nearer the eye: antennae, first joint of the club with an acute ciliated process: second joint triangular, small, the anterior angle prominent, acute; terminal joint subovate, rounded at tip: palpi rufous, last joint hardly as long as the preceding one: labrum slightly and very widely emarginate, the anterior edge piceous, and about two small punctures on the middle: thorax with a rather slender 1835.] 646 BOSTON JOURNAL arcuated line each side before, and laterally [171] with a few scattered, slightly impressed punctures: scutel rather large: elytra with four strie of impressed punctures and an approximate marginal one: feet, excepting the base of the thighs, piceous. Length nearly three-fifths of an inch. A specimen was sent to me by Mr. J. Barabino. The whole surface is covered with very minute crowded punctures, not at all visible without a pretty good lens. [Does not differ from Hfydrochares obtusatus, ante, 130.LEC.] HYDROPHILUS Fabr. 1. H. MERGUS.-Black, highly polished; sternum not reaching the middle of the venter. Inhabits Mexico. Body highly polished, black, oblong-oval; head with an abbreviated line of impressed, confluent punctures on the inner orbit; a much arcuated line of punctures from the anterior canthus terminates between the eyes; thorax with a much abbreviated, oblique line of punctures each side; elytra with three series of distant, obsolete punctures; exterior series remote from the others; sternum not canaliculate, not extending to the middle of the venter; feet more or less piceous. Length nearly seven-twentieths of an inch. In comparison with H. natator nob., which it closely resenmbles, the surface is more highly polished, the sternum much shorter and without any appearance of a groove between the anterior pairs of feet. 2. H. EXSTRIATUS.-Subsutural stria none, black; thoracic edge and beneath piceous. Inhabits Louisiana. Body short-oval or rounded, convex, glabrous, black; [172] with small, equal, equidistant, numerous punctures; polished; palpi and base of the antenna pale yellow; three last joints of the latter fuscous; thorax piceous on the lateral and posterior margins; scutel small, with but few punctures; elytra destitute of strive, and without any appearance of one on the sutural mar[Vol. I. OF NATURAL HISTORY. 647 gin; punctures on the basal margin obsolete; beneath piceous; tarsi yellow, brighter beneath. Length less than three-twentieths of an inch. This species was sent to me by Mr. Barabino. It is smaller than the orbicularis F., which it resembles much in the puncturing and forrm; but that species has the subsutural stria extending from before the middle to the tip of the elytra. [Belongs to Cyclooluzm. —LEC.] 3. H. EFscus nob.-Corresponding, almost unvariedly, with specimens found in Pennsylvania. I obtained it in company with Hydrocanthus atripennis nob. SPHIERIDIUM Fab. S. MELLIPES.-Black; beneath honey-yellow. Inhabits Mexico. Body very minutely, and densely punctured, black; anteann and palpi honey-yellow; thorax with the anterior and lateral margins obsoletely piceous; an impressed puncture on the lateral margin before the posterior angle; elytra with punctured striae, and minute, dense punctures on the flat interstitial spaces; immaculate; beneath honey-yellow. Length less than one-fifth of an inch. The largest North American species which I have seen; rather larger than S. bi-pustulatum Fabr., but somewhat less robust. [173] ONTHOPHAGUS Latr. 1. O. INCENSUS.-Clypeus with two elevated, transverse lines; thorax with an anterior double prominence. Inhabits Mexico. Body black, polished, punctured; head with two transverse, elevated lines; posterior line between the eyes, and slightly emarginate in its middle; anterior line a little more elevated in the middle, equidistant from the tip of the clypeus and posterior line; tip slightly contracted; antennae ferruginous; thorax on the middle of the anterior submargin with a transverse, sub-bilobate, or slightly and widely emarginate elevation; an indented dot each side; elytra with punctured striae; interstitial spaces plane, mi1835.] 648 BOSTON JOURNAL nutely punctured; head and thorax with a hardly perceptible tinge of green. Length over three-tenths of an inch. The specimen is probably a female. It is smaller than the 0. taurus Linn., the female of which it resembles in the form and disposition of the lines of the clypeus. It is much larger than 0. latebrosus Fabr., from the female of which it differs considerably in the form of the elevated lines of the head, but agrees in having a thoracic prominence; this prominence, however, is more obvious, and widely emarginate. 2. 0. VIRIDICATUS.-Green; clypeus bidentate; elytra smooth. Inhabits United States. Scarabseus smaragdulus Fab.' Melsh. Catal. Body robust, green; head bidentate at tip; antennae blackish; thorax on the lateral edge a little angulated before the middle; elytra smooth, impunctured, or with [174] three or four hardly perceptible impressed lines; beneath dark green. Length nearly one-fifth of an inch. Certainly not smaragdulus of Fab., but it is related, in point of size and form to Copris subenxeus Pal. de Beauv., of which, however, he remarks, "Clypeo integro, transverse bicarinato," and " ses elytres sont d'un noire terne, les stries peu marquees, et une rangee de points eleves entre chacune," which prove it to be very different from our species. [A species of Canthon previously described as Ateuchus viridis Beauv.-LEc.] 3. 0. OVATUS Fabr. Our specimens are subject, like the European, to vary considerably in magnitude and some other characters; but I have not observed any trait which can justify the separation of it from the Fabrician type. Var. a.-Elevated lines of the clypeus obsolete or entirely wanting. Var...-Anterior elevated line of the head obsolete. Var. y. —Head bidentate before. Var.. —Posterior elevated line of the head interrupted in the middle. [Vol. I. OF NATURAL HISTORY. 649 Var.. —Elytra with dull ferruginous spots. Arkansaw. It appears to be an inhabitant of nearly all parts of the Union. COPRIS Fabr. 1. C. COLONICA.-Thorax somewhat retuse; head with a short elevation between the eyes. Inhabits Mexico. Body black; head a little rugose, with a slightly elevated, compressed, rounded horn, broader than high, situated between the eyes and not surpassing the line of [175] their anterior canthi; tip of the clypeus rather acutely rounded; thorax somewhat abbreviated dorsal line behind the middle, and a deeply indented, oval impression on the middle of the lateral margin; punctures small, very numerous; elytra with indented, punctured striae; interstitial spaces convex. Length nine-tenths of an inch. Resembles C. carolina Fab., but is not so robust, and the thorax is much less elevated behind. The horn of the head, also, in Carolina is equidistant between the eyes and the tip of the clypeus. It is also like Nicanor? as figured by Drury i. pl. 35, fig'. 1. 2. C. INCERTA.-Thorax simple, with an impressed line; head horned; elytra striate. Inhabits Mexico. Body black, somewhat polished; head with dense, shallow punctures; a short, conic, vertical horn on the middle; tip of the clypeus acutely and rather deeply emarginate; thorax punctured except on the posterior disk; a deeply impressed line from a little before the middle to the base, and an impressed oval spot each side; anterior margin rather abrupt; elytra with deeply impressed, crenate striae; interstitial spaces convex, impunctured. Length nearly seven-tenths of an inch. I should be inclined to consider this as as the female of the procicua nob., but in that species the larger horn is very near the anterior termination of the head, and the posterior horn is much shorter and remarkably inclined; whilst in the present insect no tubercle exists to mark the locality of the larger horn, and 1835.] 650 BOSTON JOURNAL the horn that it possesses is larger than the posterior horn of that insect, with which it corresponds in locality but not in direction. [176] 3. C. QUADRIDENS.-Thorax angulated, four-toothed; head horned. Inhabits Mexico. Body blackish-violaceous; head densely punctured, and with an elongated, recurved, trigonate horn, which is as long as the thorax, punctured and acute; thorax rugose, angulated; posterior angles compressed, elevated, subacute; on a line between them are two remote, short, vertical, conic denticulations; anterior margin near the middle with two short, vertical, conic denticulations separated by a raised line; elytra with obsolete strioe. Length seven-tenths of an inch. A fine species, not so brilliantly colored as the carnifex Fabr., or even as the triangularis nob., from both of which it is eminently distinguished by the thoracic denticulations. 4. C. PROCIDUA.-Thorax three-horned; head two-horned. Inhabits Mexico. Body black; head punctured, two-horned; anterior horn vertical or hardly recurved, not as long as the head; posterior horn very short, inclined; thorax punctured, with three horns, the middle one very obtuse and emarginate, lateral ones acute, in a transverse line on the anterior submargin; anterior margins declivous; anterior angles rounded; an impressed, abbreviated, dorsal line and a lateral indented spot; posterior disk impunctured; elytra with impressed, punctured strie; interstitial spaces convex, impunctured. Var. a. Highly polished. Length more than three-fifths of an inch. The armature of the thorax is very similar to that of C. luna-,ris Linn., but it is less robust, and is widely distinguished [177] from that species, by having two horns on the head. The variety resembles C. Ammon Fabr., anaglyptica nob., in the thoracic sculpture. [Vol. I. OF NATURAL HISTORY. 651 APHODIUS Illig. 1. A. INNEXUS.-Black; elytra with a dull yellowish margin. Inhabits Mexico. Head widely emarginate before, punctured; disk convex impunctured: antennan cinereous at tip; palpi honey-yellow: thorax punctured, excepting on the disk, anterior margin and middle of the lateral margin; margin, at the anterior angles, obsoletely dull honey-yellow: scutel impunctured: elytra with impressed, very regular crenate strive, exterior and terminal margins rather pale honey-yellow; this color dilates towards the tip, and is deeply undulated on the inner edge: feet honey-yellow. Length less than one-fourth of an inch. About the size of A. ater Fabr. 2. A. SERVAL.-Black; elytra dull whitish, with black spots. Inhabits Indiana. Body piceous black, punctured; head widely emarginated before, and with a dull rufous margin; thorax with a dull rufous lateral margin: elytra yellowish white, with seven or eight subquadrate black spots, and a lateral, abbreviated, black, double, confluent vitta: with slender punctured strime; interstitial lines flat, impunctured. Length over three-twentieths of an inch. Very closely allied to the inquinatus Fabr., and resembles also A. contaminatus Fabr., but the clypeus is much more deeply emarginated, and is acutely angulated [178] at each end of the emargination. This latter species is hairy. PSAMMODIUS Gyll. P. INTERRUPTUS.-Thorax with three lateral, transverse undulations. Inhabits Indiana. Body dark chestnut, punctured: head deeply and somewhat acutely emarginated; with very numerous raised points: thorax with about three, lateral, transverse, but little impressed grooves, obsolete above; with a dorsal, longitudinal, impressed line, obsolete before; edge ciliated; surface somewhat rough; elytra grooved, and somewhat punctured. 1835.] 052 aBOSTON JOURNAL Length three-twentieths of an inch. In the suicicolis Ill., the thoracic grooves are not interrupted on the back; it is also smaller than the present species. ODONT2EUS Meg. O. aIMSCULUS.-Small, brown, with short hairs; elytra with punctured striae. Inhabits Indiana. Body small, light chestnut brown, darker before, with very numerous short hairs, punctured: head, between the eyes, with a hardly elevated, arcuated line, above which is a transverse indentation, then a hardly perceptible raised line: labrum emarginate; mandibles concave above, convex beneath, regularly arcuated, exterior edge entire: clypeus not trilobate at tip, entire: antennae yellowish at tip: thorax convex, laterally a little dilated towards the base; an indentation on the middle of the lateral submargin; elytra with somewhat impressed and punctured [179] striae, which are obsolete on the humerus; interstitial lines depressed, with minute punctures furnishing hairs. Length over one-fifth of an inch. A rare insect; I have found but one specimen, which is probably a female. It is even smaller than the O.filicornis nob., and in form more like the Lazarus Oliv. than the cephus Oliv. [A species of Ocho7deus, afterwards described as 0. americanus Westwood, Trans. Ent. Soc. London, 2d ser. 2, 66.-LEC.] TROX Fabr. 1. T. ALTERNATUS.-Elytra with cinereous, elevated lines interrupted by black spots. Inhabits United States. Body black, or black slightly tinged with brown: head bituberculate: thorax with obtuse, elevated, interrupted lines, irregularly punctured; posterior angles obtusely dentate: scutel, posterior margin cinereous: elytra striate with dilated punctures; alternate interstitial lines more elevated, cinereous, interrupted by black spots. Length over half an inch. This species is readily known by the cinereous and black alternation of the more elevated interstitial spaces. A variety [Vol. I. OF NATURAL HISTORY. 653 occurs, of which the elytral punctures are much less dilated, and the thorax is less deeply sculptured. I have found the species in Pennsylvania; Nuttall obtained it in Arkansaw, and Mr. Barabino sent me an individual taken near New Orleans. A label, attached to a specimen in my cabinet, states that it cannot be the crenatus Oliv., with which I am now unacquainted. [Belongs to Omorgus, and was previously described as:' Jp1unctatus G-erm. —LEc.] 2. T. GLOBOSUS.-Blackish-bronze; elytra denticulated on the lateral edge. Inhabits Pennsylvania. 180] T. globosus Melsh. Catal. Body blackish-bronze, punctured: head entire, unarmed; thorax with an impressed line on the anterior lateral submargin: elytra with oblong, deeply impressed, rather distant punctures; posterior declivity with four or five elevated, converging lines, the two exterior ones continued towards the humerus; exterior edge with numerous, approximate teeth: posterior tibiae much dilated and compressed. Length about one-fifth of an inch. [Belongs to Acanthocerus.-LEC.] 3. T. SPLENDIDUS. —Dark brassy; elytra with series of punctures, and on the posterior declivity with elevated lines. Inhabits United States. T. splenddlus Melsh. Catal. Body rather short, oval, polished, dark bronze; punctured: head unarmed, entire: thorax with an impressed line on the anterior lateral submargin: elytra with regular series of rather long, deeply impressed, approximate punctures; on the posterior declivity four or five elevated, converging lines, the exterior one extending towards the humerus; posterior tibiae much dilated and impressed. Length nearly one-fifth of an inch. Readily distinguishable from the preceding by the more approximate punctures of the elytra, and the simplicity of the lateral edge. They both exhibit a remarkable difference, in their smooth surface, from the greater number of the species of this genus. [Also an Acanthocerus, previously described as MeIolontha aphodioides Illiger, and Scarabseus latipes Germ., and subsequently as A. lsevistriatus Lap.-LEc.] 1835.] 654 BOSTON JOURNAL MELOLONTHA Fabr. M. INTEGRA.-Reddish-brown, hairy; clypeus entire. Inhabits Mexico. [181] Body reddish-brown, hairy on every part: head with rather large dense punctures; tip of the clypeus obtusely rounded; thorax with the hair equal, reflected: scutel with rather short hair: elytra destitute of elevated lines; hair longer near the base: postpectus with long hair: feet with sparse hair. Length less than three-fourths of an inch. Distinguishable from all the other known North American species by its rounded clypeus combined with its universal hairy vesture and magnitude. ANOMALA Meg. 1. A. GEMERLA.-Yellowish-white, varied with blackish, elytra with geminate strive. Inhabits Mexico. Body pale, varied with blackish: head punctured, cupreous: thorax with minute, distant punctures; edge blackish-cupreous; disk blackish; this color reaches the middle of the anterior margin, is sinuate on the sides and profoundly so behind; a blackish dot on the middle of the lateral submargin: scutel piceous: elytra with rather distant, large and blackish punctures; three double series of impressed punctures similar to the others, but approximate, and a single subsutural series; edge all around blackish, a humeral spot and middle of the exterior margin blackish. Length half an inch. In some respects resembles A. unifasciatus nob., but it is larger, with a shorter head, and is very different by other characters. 2. A. CINCTA.-Bluish-green, elytra pale brownish. Inhabits Mexico. [182] Head cupreous, punctured: thorax slightly punctured, bluishgreen: scutel bluish-green, punctured: elytra pale brownish, or a little testaceous, with punctured striae and a broad line of ir[Vol. I. OF NATURAL HISTORY. 655 regular punctures near the suture: suture and edge all around and spot on the humerus blackish-green: antennae and palpi ferruginous. Length over half an inch. This insect and the preceding may be only varieties; nevertheless, having three specimens that are similar to each other, I may state that it differs from A. gemella nob., in the more obviously punctured thorax, in not having the strim of the elytra so obviously in pairs, and in the color. HEGETER Latr. H. PUNCTATUS. —Thorax transverse; elytra punctured, and with obsolete series of punctures. Inhabits Mexico. Body black, densely punctured: antennas and palpi piceous; terminal joint of the maxillary palpi rather large: thorax transverse, convex: elytra irregularly punctured, and with regular series of punctures: feet piceous. Length less than one-fourth of an inch. EURYCHORA Thunb. E. INEQUALIS.-Body inequal, with elevated points and lines, and indentations and punctures. Inhabits Mexico. Body black, oblong-oval; head minutely rugose, with an obtuse indentation each side: thorax inequal, with [183] elevated obtuse lines and indentations, and numerous small, elevated dots; posterior angles acute: elytra with many small elevated dots, and deeply impressed, distant punctures; several elevated, obtuse, abbreviated lines, of which the largest one is near the middle and extends to the posterior declivity; on this declivity are three large, elevated tubercles; an abbreviated line extends from the humerus, and a very short basal one is nearest the suture: beneath, with numerous, small, elevated dots. Length three-fifths of an inch. This occurred in abundance in an elevated situation, under old logs. [Evidently a species of NAosoderma.-LEC.] 1835.] G56 BOSTON JOURNAL BLAPS Fabr. 1. B. RUIDA.-Elongated; elytra rugose. Inhabits Mexico. Body black, punctured: thorax somewhat longer than broad, punctures confluent each side and behind; a transverse, subbasal, indented band, obsolete in the middle; lateral margin rounded, the marginal, hardly elevated line being so low on the side as not to be visible from above: elytra convex, covered in every part with irregular rugosities. Length less than one inch. [These species all belong to Eleodes.-LEc.] 2. B. IMPOLITA.-Opaque; thoracic basal angles slightly excurved; elytra simple. Inhabits Mexico. Body black, nearly opaque, very minutely punctured: head, transverse line between the antennae, obsolete: thorax rather wider than long, greatest width a little before the middle; lateral edge a slightly elevated line, abruptly a little excurved at the posterior angle, exhibiting [184] in that part a very small, acute, lateral projection: elytra smooth to the eye, but on close inspection minutely and irregularly rugose and punctured; lateral margin rounded. Length over three-fifths of an inch. Much like B. xequalis, but distinguishable by its almost total want of polish, the minute prominence of its posterior angle, and the microscopic roughness of its elytra. 3. B. MAURA.-Elytra with impunctured, obtuse strive. Inhabits Mexico. Body black: head punctured, an impressed line between the antennae: thorax with hardly discernible punctures; wider than long; posterior angles not rounded; lateral edge a vertically elevated line, not in the slightest degree curved outwards near the posterior angle: elytra somewhat depressed, obtusely striated or grooved, the grooves impunctured, but viewed in a particular direction they appear obsoletely rugose; interstitial lines convex; lateral margin rounded and evidently irregularly punctured; epipleura impunctured; feet punctured. Length more than three-fifths of an inch. [Vol. I. OF NATURAL HISTORY. 657 4. B. OBLITERATA.-Elytra with obsolete grooves; lateral margin rounded. Inhabits Mexico. Body black, immaculate: head slightly punctured; an impressed line between the antennae: thorax wider than long; lateral edge a slightly elevated line, a little excurved at the posterior angle, which is consequently somewhat acute: elytra with obsolete grooves, minutely punctured; lateral margin rounded and smooth: thighs not obviously punctured. [185] Length less than three-fifths of an inch. Resembles the preceding, but differs in the excurvature of the lateral thoracic edge near the posterior angle, and in the grooves of the elytra being obsolete. 5. B. CELSA.-Body somewhat elongated; elytra with traces of grooves and punctures. Inhabits Mexico. Body brownish-black, minutely punctured, somewhat elongated: head with the impressed line between the antennae obsolete: antenna at tip, and palpi piceous: thorax rather wider than long; lateral edge a slightly elevated line, not excurved at the posterior angles; an obsolete, abbreviated, oblique, impressed line near the posterior angles; somewhat attenuated behind; lateral margin rounded. Length more than three-fifths of an inch. More slender than the maura and obliterata, which have no appearance of an indentation near the posterior angles of the thorax. 6. B. EQUALIS.-Elytra smooth, simple; thoracic basal angles rot excurved. Inhabits Mexico. Body black, minutely punctured: head with the impressed line between the antennae, obsolete: thorax broader than long, broadest in the middle; lateral edge a slightly elevated line, not at all excurved near the posterior angle; elytra destitute of any appearance of the rudiment of a groove or of strise; rounded on the lateral margin. Length over three-fifths of an inch. 1835.] 42 658 BOSTON JOURNAL Shorter and more robust than B. celsa nob.; allied [186] more closely to B. obliterata nob.; but the elytra of that species are much more rough, and its posterior thoracic angles are slightly excurved. 7. B. PARVA.-Lateral thoracic edge reclivate; elytra with punctured strie. Inhabits Mexico. Body black, punctured: head with two obsolete indentations between the antennae: thorax emarginate before for the reception of the head; anterior angles acute; lateral edge with a hardly prominent line, curved convexly before and concavely behind, forming an acute posterior angle; greatest breadth rather before the middle: elytra with large punctures in regular series; interstitial lines irregularly punctured. Length nearly three-tenths of an inch. The smallest species I have yet met with in North America. Of this genus I have described sixteen North American species, each of which has only the three ultimate joints of the antennae moniliform; whereas in all the exotic species of my collection, nine in number, the four ultimate joints are moniliform. OPATRUM Fabr. 1. O. STRIATUM.-Clypeus obtusely emarginate; elytra with punctured striae. Inhabits Mexico. Body punctured, black, with a slight brassy tinge: head densely punctured; emargination of the tip much dilated; thorax densely punctured, posterior edge not deeply sinuated: elytra with impressed, punctured strie: tarsi piceous. [187] Length three-tenths of an inch. Resembles 0. pullum nob., but is smaller, and the base of the thorax is more rectilinear. 2. O. NOTUM nob. Specimens found near New Orleans vary from those of more northern regions, in being a little polished, and in having the elytral punctures larger. [Vol. I. OF NATURAL HISTORY. 659 TENEBRIO Lin. 1. T. SUPPRESSUS. — Thorax large; clypeus entire; elytra with punctured strie. Inhabits Mexico. Body black: head densely but minutely punctured; clypeus a little reflected and entire: labrum nearly concealed: thorax densely and minutely punctured; rather large; a large, slightly indented spot on the posterior submargin; posterior angles acute; posterior margin with an impressed line: scutel triangular: elytra with impressed, punctured, and crenate strime; interstitial spaces convex, impunctured; lateral edge acute: anterior tibia with a strong tooth. Length half an inch. In comparison with T. reflexus nob., the thorax is larger, more arcuated on the lateral edge, and more narrowed behind; the anterior tip of the clypeus is not so prominently reflected, and the contraction towards the junction of the thorax and abdomen is more obtuse. 2. T. RUFINASUS.-Suboval, black; head before, antenna and feet ferruginous. Inhabits Louisiana. Body oval, a little oblong; densely punctured: head on the anterior part obscure rufous; antenna obscure, [188] ferruginous; joints transverse, subtriangular or conic: palpi and mentum ferruginous: thorax regularly punctured; basal edge undulated; basal angles rectangular: scutel densely punctured: elytra with regular series of punctures; interstitial spaces slightly convex, particularly the lateral ones, and with three or four irregular series of small punctures: beneath ferruginous, punctured. Length over one-fifth of an inch. Sent to me by Mr. Barabino from New Orleans. [Belongs to Heterophaga.-LEC.] ULOMA Meg. U. FERRUGINEA Fab. Several specimens occurred at Vera Cruz, but I suspect it to be a naturalized foreigner, as it is with us. 1835.] 6(0 BOSTON JOURNAL (EDEMERA Oliv. (E. APICALIS. —Pale reddish-brown; elytra black at tip and with four elevated lines. Inhabits United States. Body rufo-testaceous, densely punctured: eyes obvious emarginate: mandibles black at tip: thorax dilated each side before the middle, narrowed behind: elytra with four narrow, slightly elevated lines, on each side of which is a series of more obvious punctures; third line obsolete before the middle; tip black; postpectus, abdomen and feet black, a little sericeous: wings blackish. Length about half an inch. I have found it in Pennsylvania and other parts of the Union, and Mr. Barabino sent me an individual from Louisiana. [This is the common Nacerdles melanura, imported from Europe.-LEC.] [189] LAGRIA Fabr. To this genus, as it is at present constituted, it seems probable that the following species belong, rather than to Anthicus, under which I published an account of them, stating, at the same time, that they differ from the other species of the genus that had fallen under my observation, viz:Lagria laugubris, L. collaris, L. terminalis, L. labiata, and L. impressa nob., but the orbicular thorax, the nails being armed with a tooth or abrupt angle beneath, &c., seem to justify, if not the formation of a new genus, certainly a division of the present, under the name of Corphyra. [As will be seen ante, 311, these species all belong to Pedilus. LEC.] RHIPIPHORUS Fabr. R. LIMBATUS Fabr. —Sanguineous; thoracic disk and margin of the elytra black. Inhabits the United States. Body rather slender, yellowish-sanguineous: antennae black, basal joint yellowish: mandibles black at tip: thorax deeply si[Vol. I. OF NATURAL HISTORY. 661 Inuated behind, and with a more or less dilated, black spot on the middle: elytra with a whitish disk, more or less broadly margined with black: thighs at tip, tibia except at base, and tarsi, except the base of the first joint, black. Length to tip of elytra a quarter of an inch. Var. a. Vertex black. Var. A. Elytra black, immaculate. Var. y. Beneath varied with black. Fabricius was unacquainted with the native country of his limbatus, but as his description agrees very well with [ 190] our insect, and was made out from a specimen belonging to the same collection in which he described his dimidiatus, I have no doubt that it was intended to indicate this species. Dr. Melsheimer was of the same opinion, and has recorded the name in his catalogue. I introduce the description for the purpose of preserving the Fabrician name for a species not commonly known. MORDELLA Latr. 1. M. HILARIS.-Blackish, silvery-sericeous; elytra with a dilated, irregular, dull yellowish band margined with whitish. Inhabits Indiana. Body black, somewhat purplish-iridescent, sericeous: head dull yellowish-sericeous: thorax varied with gray hairs: scutel silvery: elytra with a much dilated, dull golden sericeous, oblique band, occupying about one-third, spread widely towards the scutel, and margi ned before and behind with a whitish line, the anterior line much angulated and the posterior one reclivate; tip rounded: beneath with purple and green reflections, and silvery-sericeous. Length about two-fifths of an inch. This has some resemblance to M. bidentata nob., but it is widely distinct by the elytral band and the much more dilated terminal joint of the maxillary palpi. It is common about the flowers of the Hydrangia cordata Ph. Its movements are rapid. 2. M. OCULATA.-Black; elytra bifasciate, anterior bands with two dots. Inhabits Pennsylvania and Indiana. M fasciata Melsh. Catal. [191] 1835.] 662 BOSTON JOURNAL Body black, whitish sericeous: antennae dull rufous, dusky towards the tip: thorax with two slightly indented dots a little behind the middle: elytra with a yellow-cinereous band a little behind the middle, interrupted at the suture and contracted on each side, and a much larger basal band extending posteriorly on each elytra in a point, nearly to the middle, and having a subbasal obvious, definite, black dot each side of the suture: tibia and tarsi dull rufous. Length over three-tenths of an inch. The two black dots on the basal band of the elytra are very obvious, and serve to distinguish it from M. fasciata Fabr., which it certainly resembles, and to which it has been referred. 3. M. SERVAL.-Blackish, spotted with yellowish. Inhabits Indiana. Body brownish-black: antennae and palpi pale, dull rufous: thorax with numerous spots of short, yellowish hairs: elytra with numerous subequal spots of short, yellowish hairs, a dentated band behind the middle, and narrow terminal margin: beneath sericeous: venter each side with obsolete oblique, brown lines: tarsi, color of the antennae. Length three-twentieths of an inch. A very pretty species. APATE Fabr. A. BICAUDATA nob.-A variety of this species occurred in Mexico. It is large, the feet are nearly black, and the punctures of the elytra are somewhat larger than in those of this country. PARANDRA Latr. [ 192] P. POLITA.-Ferruginous, head and thorax impunctured. Inhabits Indiana. Body ferruginous, polished: head blackish-ferruginous, almost impunctured, excepting behind the eyes, where the punctures are numerous; a longitudinal, slightly indented line before: antennae ferruginous at tip: mandibles with a large, prominent, rounded tooth near the base; then a profound, rounded sinus, then a subterminal tooth: palpi ferruginous: thorax blackish-ferruginous, impunctured, gradually a little narrowed behind; an ob[Vol. 1. OF NATURAL HISTORY. 663 solete indentation in the middle of the lateral margin; lateral margin decurged, the edging line hardly prominent, so that, when viewed from above, it is not visible; posterior angles almost rounded: posterior edging line hardly visible: scutel small: elytra minutely punctured; pectus and postpectus dark ferruginous. Length about seven-tenths of an inch. This species, by its size and color, may be readily mistaken for the P. brunneus of authors, but it differs in many characters. It has a more slender thorax, which is not wider than the head. The teeth of the mandibles are but two, the basal one being very large and remote from the other, so that when the mandibles are closed, an oval interval appears, as in the ferruginea Sturm., which species, however, has the posterior angles of the thorax very obtusely rounded. The P. brunnea has three subequal, subequidistant teeth in the mandibles; the head and thorax obviously punctured, the latter broader than the head, &c. The species is rare. [193] PRIONUS. P. DASYSTOMUS nob.-Occurred near Natchez, on the Mississippi. MONEILEIA Say. M. INEQUALIS.-Cinereous; rough, with elevated points and tubercles. Inhabits Mexico. Body pale, brownish-cinereous: eyes small, distant from the antennae: antennae nearer to each other than to the eyes; first joint robust, longer than the second and third together; half the length of the body: thorax cylindric-oval, covered with small, unequal, irregular elevations: elytra with many elevated tubercles, of which some form a regular arcuated series from near the humerus to the tip, and parallel with the suture beyond the middle; tip entire, as long as the abdomen. Length seven-twentieths of an inch. Inasmuch as this species is apterous and has a similarity of habit, I place it in th rnt n lth the present genus, although the approximation of the antenna is an obvious distinction. 1835.] 664 BOSTON JOURNAL CLYTUS Fabr. 1. C. CHARUS.-Thorax yellow, with three black dots; elytra black; base, band behind the middle, and tip yellow. Inhabits Indiana. Body covered with short, dense, prostrate hair: head black; a band on the vertex curving under the head, an abbreviated line above the antennae, and front yellow: thorax yellow, with three dorsal, transverse, abbreviated, [194] parallel, blackish bands: elytra black; basal third a narrow, undulated band behind the middle, and tip in which is a small black spot, yellow; a black dot on the humerus: beneath yellow sutures and feet black. Length nine-tenths of an inch. Somewhat like C. decorus Oliv., and speciosus nob., but the bands of the elytra and other characters are essentially different. I first observed it near the end of August. It is a remarkably fine insect. [Belongs to Arhopalus as enlarged by me.] 2. C. CAPREA nob.-Occurred at New Orleans. STENOPTERUS Illig. (NECYDALIS Fabr.) S. SANGUIINICOLLIs.-Blackish, thorax sanguineous. Inhabits Indiana. Body black, with cinereous hairs, punctured: thorax sanguineous, inequal, with three more obvious elevations: elytra with a longitudinal, slightly elevated line; disk obscurely tinged with brownish: feet yellow; club of the thighs and tip of the tibia black. Length seven-twentieths of an inch. It is more slender than S. prxustus Fabr.; but the thoracie and elytral elevations are somewhat similar. MOLORCHUS Fabr. M. MELITUS.-Black; abdomen, feet and basal joint of the antennae honey-yellow. Inhabits Indiana. Body black: head indented between the antenne: antennas about as long as the body, basal joint rufous; thorax subcylindric, contracted before the middle, and with an indented longitudinal [Vol. I. OF NATURAL HISTORY. 665 line: elytra with a dull [ 195 ] honey-yellow vitta, external edge and obsolete spot on the basal middle: postpectus sericeous: feet honey-yellow; tip of the posterior thighs, their tibiae and tarsi dusky: abdomen honey-yellow. Length t nearly three-fifths of an inch; 9 over four-fifths. In the form of the thorax it is more like 2l. bimaculatus nob., than marginalis, but it is greatly superior in magnitude to either, and very distinct as a species. ACANTHOCINUS Meg. A. QUADRIGIBBUS.-Antenna annulate; thorax four tubercled; elytra with a cinereous spot on each. Inhabits Louisiana. Body dark brownish, when closely examined, varied with ferruginous and cinereous, short, prostrate hair: antennae hardly longer than the body, blackish; the joints, excepting the basal ones, reddish cinereous at their bases; basal joint clavate: head before remotely punctured; behind the eyes, small, numerous punctures: labrum dull honey-yellow: thorax with distant punctures; four tubercles nearly in a transverse line, and a longitudinal, elevated line: elytra quadrigibbous at base; inner gibbosity extended into a longitudinal elevated line, gradually declining and terminating before the tip; numerous, distant, profound, punctures; a dilated, undulated, cinereous spot, before the middle; a sutural series of alternate, quadrate, small brown and cinereous spots, nearly opposite; tip emarginate: thighs clavate. Length less than three-fifths of an inch. For an opportunity to described this species, I am indebted to Mr. Joseph Barabino, who obtained it near New Orleans. [Belongs to Acanthoderes.-LEc.] [196] TETRAOPES Schonh. T. TORNATOR Fabr.-This species is subject to vary. I obtained an individual near the Rocky Mountains, so covered with short whitish hair as almost to conceal its color; it was destitute of the large black spot of the elytra. Two specimens occurred in Mexico, both of which were destitute of the same spot. It is the T. tetropthalmus Forster. 1835.] 666 BOSTON JOURNAL Of this genus are two species; the tornator F., and the canteriator Drapiez, both of North America. The latter has received three or four names from as many different authors, but as they are unaccompanied with descriptions, the above will of course, take precedence. HISPA Linn. H. ATRICORNIS.-Above yellowish; antennae, thoracic line and tip of the elytra, black. Inhabits Mexico. Body above yellowish-fulvous: head impunctured: antenna black: thorax with rather large punctures; a black dorsal line: scutel black: elytra serrate, with double series of punctures, and interstitial, slender, elevated lines; tip blaclk-brown, not more than one-fifth of the whole surface of the elytra: pectus and postpectus with a lateral black vitta dilating behind: feet black: thighs fulvous at base: venter black, yellowish each side. Length more than one-fifth of an inch. This cannot be H. quadrata Fabr., which has the elytra margined with purple. [197] CASSIDA Linn. C. UNIPUNCTATA nob. Journ. Acad. Nat. Sc. vol. iii. A variety of this species occurs in Mexico, of a smaller size, with sometimes a black, arcuated, transverse line behind the abbreviated thoracic line. The inferior surface, in some specimens, is black, the feet varied with whitish, and whitish triangular lateral spots on the incisures of the venter; in others the inferior surface is pale greenish-yellow, more or less varied with black, the spiracles black. It is an abundant species. CLYTHRA Leach. Fabr. C. MUCIDA.-Black, metallic; head, thorax, and beneath with white hair. Inhabits Mexico. Body blackish, punctured: head with a coppery tinge, and covered with prostrate white hair: labrum honey-yellow: palpi blackish: antennae piceous: thorax tinged with cupreous, with dense, small punctures, and covered with white prostrate hair: [Vol. I. OF NATURAL HISTORY. 667 scutel with prostrate white hair: elytra naked, with blue and coppery reflections, conflueptly punctured, lateral edge deeply arcuated: beneath covered with white prostrate hair: feet piceous. Length over one-fourth of an inch. Much larger than C. dominicana Fabr., much more hairy above, and the lateral edge of the elytra more profoundly excavated. CHRYSOMELA Linn. 3. C. BARDA. -Green; elytra with rounded whitish spots. Inhabits Mexico. [198] Body dark green, somewhat metallic, punctured: head with an impressed angular line between the antennae: antennae honeyyellow, at tip fuscous: labrum and palpi honey-yellow: thorax irregularly, and in parts confluently punctured, particularly on the sides; on the disk the punctures are sparse: elytra with a cupreous tinge, and more or less arcuated and abbreviated series of punctures, including the whitish spots; spots unequal, more or less rounded, between twenty and thirty in number, yellowishwhite, the largest one on the humeral margin and bilobate, two geminate ones at base, none on the sutural margin: wings carneous: beneath tinged with cupreous, on the venter: feet honeyyellow. Length three-tenths of an inch. A common species, easily distinguishable from others. GALLERUCA Fabr. 1. G. LEPIDA.-Sanguineous; elytra blackish, bifasciate with white. Inhabits Mexico. Head sanguineous: antennae white: thorax narrow, sanguineous, with a transverse, slightly indented line, impunctured: elytra blue-black, obsoletely and irregularly punctured; a transverse, bilobate, abbreviated band before the middle, and a transverse, oval spot near the tip, yellowish-white: feet yellowish-white. Length less than one-fourth of an inch. Habit of G. 4-maculata Fabr., but not so much elongated. 1835.] 668 BOSTON JOURNAL At first sight, without inspection of its generic characters, it might be mistaken for a Lema. 2. G. CAVA.-Head with one, thorax with two impressed dots. [199] Inhabits Mexico. Head punctured, sanguineous, beneath the antennae whitish; vertex with an impressed dot: antennae fuscous, or blackish, basal joints whitish beneath: thorax sanguineous, punctured, with two indented dots: elytra densely punctured, with a common suture and vitta blue, the latter originating on the humeral tubercle and abbreviated before the tip: pectus ferruginous: postpectus and venter black; feet white. Length one-fifth of an inch. Distinguishable from other species by the indentations of the head and thorax, combined with the elytral vittm and irregular puncturing. The G. vittata Fabr. is common in Mexico. ALTICA Geoff. 1. A. MELLICOLLIS.-Head black; thorax yellowish; elytra blue. Inhabits Louisiana. Head blue-black, with rather large punctures each side, between the antenna convex, dark piceous: antennae black brown, three basal joints honey-yellow beneath: palpi black: thorax pale honey-yellow, punctures not obvious: scutel impunctured: elytra dark violaceous-blue, with numerous, small, distant, not profound punctures: pectus yellowish: postpectus blackish: venter blackish, last segment dull yellow: thighs honey-yellow: tibiae black, yellowish at base: tarsi black. Length nearly one-fifth of an inch. Related to collarls Illig., and collata Fabr., and particularly the latter, from which it may be distinguished by its blue elytra and immaculate face. A specimen was sent to me by Mr. Barabino, from New Orleans. [200] 2. A. CRENICOLLIS.-Yellowish; thorax five-spotted; elytra with black vittae. Inhabits Mexico. [Vol. I. OF NATURAL HISTORY. 669 Body pale yellowish: antenne blackish; three basal joints honey-yellow, with a black line above: vertex with a black spot thorax with two small dots, and an abbreviated line arranged triangularly, black, and a lateral, somewhat larger, oblique, oval, indented black dot: scutel black: elytra impunctured, destitute of striae; a common sutural black vitta, another in the middle, somewhat narrower than the intervening portion, and a submarginal one: pectus yellowish: postpectus and venter black, the latter with yellowish margins to the segments: feet honey-yellow: tibiae and anterior and intermediate thighs with a black line. Length one-fifth of an inch. Very closely allied to A. alternata Illig., the form and proporportion of the elytral vitta being the same, but that species is somewhat larger, and is altogether destitute of the lateral thoracic impressed dots. 3. A. CERACOLLIS.-White; head black, elytra violaceous. Inhabits Mexico. Body white, impunctured; head black, with an elevated line below the antennae: antennae black, second and third joints white, with a black line above: thorax immaculate: elytra violaceous, burnished; tarsi and tips of the tibiae black. Length less than one-fifth of an inch. Resembles the A. collaris Illig., (xanthomelas Dalman,) but is much more closely allied to A. collata Fabr. It is somewhat doubtful if it be a distinct species; but as I possess specimens of the latter from Pennsylvania, Missouri [201] and Florida, all correspond in having green elytra, white front, and other distinguishing traits, I have ventured to assign it a distinct name. EROTYLUS Fab. E. 4-PUNCTATUs.-Testaceous, beneath black: thorax with four black dots: elytra trifasciate with black. Inhabits Missouri. Erotylus 4-punctatus? Oliv. Enc. Meth. Head black: thorax testaceous, with an arcuated series of four subequal black dots: scutel black: elytra testaceous, with regular series of impressed punctures, an interrupted band at base composed of a large common spot, and a smaller longitudinally ob1835.] 670 BOSTON JOURNAL long one originating on the humerus, an irregular band on the middle, dilated on the suture, and a terminal, longitudinally oblong spot, black; edge black: beneath black: pectus each side, and a series of five spots on each side of the venter, testaceous. Length three-tenths of an inch. This insect I believe to be the E. 4-punctata Oliv. and as it is but little known, I describe it more particularly to fix the species. [Belongs to Isc]tyrus.-LEc.] LANGURIA. L. SIMPLICICOLLIS.-Black; head and thorax sanguineous immaculate. Inhabits Mexico. Body blue-black: head sanguineous: antennae blackish-fuscous: thorax sanguineous, immaculate: elytra with [202] very distinct series of well impressed punctures: pectus and head beneath sanguineous. Length nearly two-fifths of an inch. Much larger than L. Mlozardi Latr., and with a proportionally shorter thorax, in these respects corresponding with L. puncticolis nob., which it equals in magnitude, but has an immaculate thorax, more profoundly punctured elytral strie, and black post pectus and venter. COCCINELLA Linn. 1. C. MUNDA.-Elytra immaculate; thorax black, with a white margin and spots. Inhabits North America. Body black: head with dilated, white, inner orbits: labrum honey-yellow: thorax with a white anterior and lateral margin, and a white abbreviated line proceeding from the middle of the anterior margin: a lateral white dot sometimes confluent with the anterior margin: elytra immaculate, yellowish: tibiae and tarsi piceous. Var. a. Tibiae and tarsi black. Var.:. Elytra sanguineous; head white; anterior pairs of feet honey-yellow. Length nearly one-fifth of an inch. [Vol. I. OF NATURAL HISTORY. 671 I have specimens in my collection from remote parts of North America. Dr. Harris sent it to me from Massachusetts, and Dr. Melsheimer from near Maryland. I have found it in the North West Territory, Pennsylvania, Indiana, Missouri, Florida, and varieties a and A, in Mexico. The name is taken from Melsheimer's Catalogue. 2. C. DENTIPE$ Fabr.-Is common in Mexico, and I formerly obtained an individual in the North West Territory. 3. C. CACTI Fabr.-This species occurs abundantly in Mexico; it certainly resembles very closely the stigma [203] nob., so common in this country, and the renipustulata Mull., of Europe; but it is more than twice the size of either of those insects, and may also be distinguished from the former, by the superior magnitude of the rufous spot of which the form is transversely oval, whilst that of the stigma is orbicular. SCYMNUS Herbst. (COCCINELLA F.) S. TERMINATUS.-Black; elytra, at tip yellowish. Inhabits Louisiana. Body black, polished, punctured: head honey-yellow: antennae, club not much dilated, with numerous short hairs: thorax with numerous short hairs: lateral margin honey-yellow: scutel acute behind: elytra at tip yellowish: beneath piceous-black: pectus, feet and venter behind, honey-yellow. Length about two-twenty-fifths of an inch. For this species I am indebted to Mr. Barabino. 1835.] 672 BOSTON JOURNAL [From Boston Journal of Natural History, Vol. i. No. 3, pp. 210-305.] Descriptions of new North American HYMENOPTERA, and Observations on some already described. Communicated Feb. 1835. Family TENTHREDINETAXE. ACORDULECERA Say. Artificial character.-Antennae filiform, 6-jointed, short; radial cellule one; cubital cellules three, the second smallest. Natural character.-Antennae six-jointed; first and second joints subequal, the second larger; third joint longest but equal to the following ones in diameter; remaining joints gradually shorter; terminal joint not longer than the second: mandibles arcuated, acute; a prominent tooth on their middle: labrum prominent and distinct: radial cellule rather large: cubital cellules three; first elongated, as long [210] again as the second: carpus large: tibiae with one pair of spines at tip. Obs. The family of which this new genus is a member, was divided by Leach into nine Stirpes, all of which have nine or more joints in the antennae excepting the first, second, and fifth. Of these, two genera only, have 6-jointed antennae, viz., Zarea and Perga Leach; but both have clavate antennae and in many respects are at variance with the characters of the present insect. In a later work, the "Entomologische Monographieen," by Dr. Klug, which that author has done me the favor to send me, are the two new genera Pachylosticta and Syzygonia, both of which have clavate antennae, and therefore, like the preceding, cannot possibly include our insect. A. DORSALIS.-Black; hypostoma, a base of the tergum and feet whitish. Inhabits Indiana. $ 9 Black, with minute whitish hairs; nasus, labrum and mouth white: mandibles rufous at tip: thorax with the anterior segment, curving to the base of the wing, white; line of the insertion of the wings white: wings a little dusky; nervures fus[Vol. I. OF NATURAL HISTORY. 673 cous: tergum pale yellowish on the basal disk, blackish brown at tip: venter more or less yellowish-white, dusky or blackish at tip: feet and coxae whitish-green. Var. a. Feet and part of the costal rib green scutel and posterior portion of the stethidium whitish. [211] Var. ft. Thorax and abdomen entirely black. Length three-twentieths of an inch. This insect is common. HYLOTOMA Latr. 1. H. SCUTELLATA.-Fulvous; head and thorax, excepting the humerus and scutel, blackish. Inhabits United States. $ Body reddish-yellow: head blue-black: thorax blue-black; each side before the wings, including the superior portion of the pleura, reddish-yellow: scutel elevated, bright reddish-yellow: metathorax with two oblique, oblong, white spots: wings dusky violaceous: pectus, neck, incisures of the stethidium (and feet?) blue-black: anal segments at tip black. Length nine-twentieths of an inch. I do not remember in what part of the Union I found this species. The feet in the specimen are mutilated. 2. H. CALCANEA.-Blackish; thorax yellow; tarsi whitish at base. Inhabits United States. Violaceous black: thorax with the anterior superior portion of the pleura yellow; suture of the anterior segment, or collar, blackish: wings dusky violaceous: tarsi at base white. Length less than seven-twentieths of an inch. I have also lost the particular locality of this species. They do not correspond with either of the species described by Dr. Leach. [212] ATOMACERA Say. Generic character.-Body rather short: antenna with but three obvious joints; in the male ciliated: cellules, one radial, unappendiculated; three or four cubitals, the dividing nervure of the first and second being obsolete: tibiae destitute of a spine in their middle. 1835.] 43 674 BOSTON JOURNAL Obs. The name of Cryptus, applied by Jurine to one of his genera, has been previously appropriated by Fabricius to a genus of Ichneumonides, and is altogether synonymous with lrylotoma of Latreille, which is the anterior designation. It includes species of at least three genera, all of which are distinguished by tri-articulate antennae. It may be thus divided, with modified characters. HYLOTOMA Latr.-Radial cellule appendiculated: four posterior tibiae with a spine on their middle. H. rose F. ATOMACERA nob.-Radial cellule simple; tibiae destitute of a spine on their middle. CRYPTUS Jurine (by error.)-Antennae of the male biparted: tibiae destitute of a spine on their middle. C. furcata F. C. Klugii, Leach, &c. 1. A. DEBILIS.-Black; tibiae whitish. Inhabits Indiana. Z Body black, polished: antennae, cilia longer than the transverse diameter of the antenna: mouth dull piceous: wings fuliginous, a little paler at tip; first and [213] second cubital cellules confluent: tibiae, anterior pair dull pale yellowish. Length three-twentieths of an inch. 2. A. CELLULARIS.-Black; abdomen rufous. Inhabits Indiana.? Body black, polished: antenna distinctly and rather densely ciliated with hairs, which are a little shorter than the transverse diameter of the antennae: nasus, labrum and palpi whitish: wings dusky violaceous; cubital cellules three; the second very small, hardly one third the length of the first, and but little wider at its tip than at its base: abdomen entirely yellow-rufous: feet, coxae, trochanters and small base of the tibite, whitish; anterior pair of tibiae dull whitish. Length less than one-fourth of an inch. Much smaller than Itlotoma abdominalTs Leach, which it probably resembles. [Vol. I. OF NATURAL HISTORY. 675 THULEA Say. Artificial Character.-Antennae six-jointed; last joint clavate. Radial cellule one. Cubital cellules three. Ntatural Character —The antennae are rather short, decidedly clavate; first joint very short, not longer than broad; second joint at least as long again as the first and somewhat more robust, cylindrical; third rather longer than the 1st and 2d together, much more slender, cylindric, hairy; fourth minute, shortest; fifth about the length of the third, subcylindric, [214] naked; sixth slightly longest, nearly equal to the 3d and 5th, a little dilated towards the tip; scutel large.:Observations.-This is distinguished from the genera into which Leach has divided Cinbex Fabr. by the number and construction of the joints of the antennae, combined with the wing cellules. It corresponds with Clavellaria in its one-jointed club, but has one joint more in its antennae, and only one radial cellule. It agrees with Zaraea in the number of the joints of the antennae, but not in the number which constitute the club, nor in the number of radial cellules. With Perga it is related by the comparative magnitude of the scutel, and the number of joints of the antennae, but differs remarkably in the proportions of the latter, as well as in the number of cubital cellules. Pachylosticta of Klug has a one-jointed club, but one joint less than the present genus, and two radial cellules; and Syzygonia of the same author, with a one-jointed club, has appendiculated radial cellules. T. NIGRA.-Body black: nasus and labrum green: spot before the wings, wing-scale and feet yellowish-green. Inhabits Mexico. Length to the tip of the wings three-twentieths of an inch. The smallest species I have seen of this family with clavate antennae. [215] 1835.] 676 BOSTON JOURNAL ALLANTUTS Panz. Leach. 1. A. EPINOTUS.-Black; tergum with a white band at base; feet varied with white. Inhabits Indiana. Body black: mouth white; tongue piceous: thorax with the posterior edge of the collar, wing-scale, posterior edge of the scutel, and two minute dots behind it, white; wings with brown nervures: stigma somewhat inflated: tergum with the posterior margin of the first segment white: feet white: coxs with a dilated line before and behind; anterior and internediate thighs and tibie with a black line behind, tarsi dusky at tips of the joints: posterior thighs black in the iniddle: tibiae at base and tip black: tarsi, first joint black, remaining joints black, white at base. Length S three-tenths, y less than two-fifths of an inch. 2. A. GONIPHORUS-Black; abdomen rufous; scutel and thoracic triangle yellow. Inhabits Indiana. % 9 Body black: nasus emarginate, white: labrum orbicular, and with the other parts of the mouth white: mandibles at tip piceous: antennae basal joint white: thorax with a central triangle and posterior margin of the collar white: scutel white with a black band: wings hyaline; costal nervure and carpal spot yellowish: nervures fuscous: abdomen honey-yellow: pleura with a longitudinal vitta, and a line descending from the superior wing white: feet white: anterior pairs with a black line behind the thigh and tibia; posterior pair honey-yellow, base of the thigh, spot on the middle of the tibia, tarsus, excepting the base of the first joint and coxa white, the latter with a black line. [216] Length three-tenths of an inch. A female has the basal joint of the antennae almost black. 3. A. APICIALIS [APICALIS].-Black; antenna at the tip white; abdomen honey-yellow. Inhabits Indiana. Body black: antennae, four last joints white: nasus profoundly lunate, white: labrum obtusely angulated before, white: thorax, [Vol. I. OF NATURAL HISTORY. 677 with the posterior margin of the collar and wing-scale, white: scutel white: wings hyaline; nervures black; carpus white on the basal half: abdomen honey-yellow: feet honey-yellow: coxac white. Length seven-twentieths of an inch. The white terminal joints of the antennae strongly contrast with the remaining joints. 4. A. EPICERA.-Black; abdomen, base of the antenna and feet honey-yellow. Inhabits Indiana. tBody somewhat slender, black; antennae, first and second joints yellow, the latter two-thirds the length of the first; third and fourth joints yellow on the upper side: nasus deeply emarginate, yellow-white: labrum suborbicular and with the mouth whitish: mandibles piceous at tip: thorax, collar and wing-scale yellow: wings hyaline; nervures black; carpal spot white on the basal half: abdomen honey-yellow, basal segment black: feet honey-yellow: coxae white. Length less than three-tenths of an inch. Var. a. Scutel dull yellowish. 5. A. CESTUS.-Black; a white band at base of the tergum; pleura with a white spot. Inhabits United States. % Body black, with large crowded punctures: antennae, [217] first and second joints yellow: nasus hardly emarginate with a lateral whitish spot: thorax with the posterior margin of the collar white: pleura with a white spot on the anterior upper part: wings tinted with fuliginous; nervures black; carpal spot wax-yellow: tergum with a dilated band extending to the lateral sutures, white: feet white, a little varied with yellowish at tips of the joints; thighs black at base beneath. Anal segment white: posterior coxse at base black: posterior thighs in the middle and their tibiae at tip black. Length seven-twentieths of an inch. Resembles the epinotus, but may be at once distinguished by the white spot of the pleura. 1835.] 678 BOSTON JOURNAL 6. A. PANNOSUS. — Black; mouth white; feet varied with white. Inhabits Indiana. $ Body black: nasus very deeply eiarginate, white: labrum suborbicular, truncate, subemarginate before, blackish on the disk, or within the emargination of the nasus: mandibles black at tip: maxillary palpi dusky in the middle of the basal joint: thorax, posterior edge of the collar white; wing-scale blackish: wings hyaline; nervures black; carpus on the inner half dull wax-yellow: pleura immaculate; feet, anterior pairs white before, with a black line behind; coxve white: tarsi white with dusky incisures; posterior pair black, incisures of the thighs, band on the tibiae and base of the ultimate joints of the tarsi white; coxae white, with a black spot above and beneath. Length one-fourth of an inch.? Coxae with a large black spot; posterior tibiae with a white longitudinal line. Length three-tenths of an inch. [218] Much smaller than externus nob., Western Quarterly Reporter. [Ante, 1, 162.] 7. A. BARDUS.-Black; thorax and anterior upper angle of the pleura rufous. Inhabits Indiana. Body short, dilated, black: antennae, second joint nearly as long as the first, but less dilated: front and vertex with impressed lines: nasus not deeply emarginate: labrum rounded before: mandibles piceous at tip: thorax and humeral portion of the pleura honey-yellow: wings tinged with blackish-purple. Length three-tenths of an inch. Belongs to the genus Selandria Leach. The short and dilated form is like that of ovatus L., and nigerrima Klug. NEMATUS Jur. 1. N. VERTEBRATUS.-Green; antennae and spots above blackish. Inhabits Indiana. 9Body pale green: vertex with a black spot: antennae black, fuscous towards the tip; second and third joints subequal; nasus [Vol. I. OF NATURAL HISTORY. 679 white, somewhat bilobate: labrum not very obtusely rounded before, a little indented on the disk, white: mandibles piceous at tip: thorax trilineate with black: scutel black: wings hyaline; nervures blackish: costal nervure and carpus pale greenish: tergum with a vitta of blackish spots, almost obsolete towards the tip: tarsi dusky. Length one-fourth of an inch. 2. N. INTEGER.-Greenish-yellow; antennae, spots and tergum black; costal edge not emarginate at the carpus. [219] Inhabits Indiana. YBody greenish-yellow: head with a dilated black vitta on the vertex: antennae black: nasus whitish, not very deeply emarginate: labrum white, depressed anteriorly, rounded before: mandibles piceous at tip: thorax with three much dilated, abbreviated, black vittae; an oblique black spot behind the scutel: wings hyaline; costal nervure and carpus dull waxen; no obvious emargination on the costal edge near the carpus; nervures blackish: tergum black; lateral edge and posterior narrow margins of the basal segments whitish: posterior pair of tibiae and tarsi black. Length over one-fourth of an inch. Resembles the preceding, but the form is much more robust, and that species has the usual emargination of the costal edge. The present species has much more of the black in its color. 3. N. LONGICORNIS.-Black; beneath, head and before the wings whitish. Inhabits Indiana. Body black: head yellowish-white, a dilated black spot on the vertex: antennae fuscous, joints elongated: thorax black, line before the wings and wing-scale whitish: wings hyaline, nervures fuscous: carpus rather large, yellowish: beneath greenish, or yellowish-white: pleura with two black spots beneath the wings, the anterior spot longitudinal. Length three-twentieths of an inch. EMPHYTUS Leach. 1. E. TARSATUS.-Black; tarsi and tip of the antennae white. Inhabits Indiana. [ 220 ] 9 Body black: antennae with three and a half or four terminal 1835.] 680 BOSTON JOURNAL joints white: nasus sublunate: labrum rounded at tip, white, or with a dusky disk: palpi, terminal joints whitish: wing-scale whitish: wings very slightly tinged with fuliginous; carpus white on the basal half: feet, tarsi and coxe white: anterior pairs of of tibise white: posterior pair of tibim at base white. Length nearly one half an inch. In form it resembles the female Allantus atra L., and the thorax, as well as the abdomen is entirely black. 2. E. SEMICORNIS.-lHoney-yellow; tip of the antennae and disk of the pectus black. Inhabits Indiana. 9Body honey-yellow: antennae, four terminal joints black: nasus deeply emarginate: labrum and mouth pale yellowish, the former rounded at tip: stemmata black: thorax with a dusky line on the two middle lobes: scutel dusky on the posterior edge: metathorax dusky near the scutel: abdomen immaculate, rather paler at base and beneath: wings hyaline; nervures blackish; base of the carpus yellowish-white: pectus before and on the middle black: coxae whitish: tarsi pale: posterior thighs and tibiae blackish at their tips. Length over three-tenths of an inch. A very distinct species, and easily recognized. 3. E. PLATYCERUS.-Black; tibiae and tarsi white; first and second joints of the antenna short, equal. Inhabits Indiana. S Body short, robust, black, polished: antennae rather robust, compressed; first and second joints remarkably short, when taken together less than half the length of either of the others; remaining joints subequal, the third [221 ] hardly longest: mouth dull piceous: wing-scale dull piceous: wings fuliginous, with a violaceous tinge: feet white; thighs in the middle and coxse black. Length less than three-twentieths of an inch. The joints of the antennae are shorter and more compressed than those of any other species I have seen. 4. E. RECENs.-Antennae, basal joint white; pectus and feet white. Inhabits Indiana. % Head black; basal joint of the antenna, nasus, labrum and [Vol. I. OF NATURAL HISTORY. 681 mouth white: thorax black, with a white collar and wing-scale: wings hyaline, nervures fuscous: tergum, on the basal half, white, with three dilated black bands slightly interrupted in the middle; terminal half somewhat fulvous, with about two marginal black spots and a larger double one each side near the tip; lateral processes at tip obvious: pectus white: pleura with a dilated black line: feet white; intermediate tibia and tarsi with a black line; posterior thighs tinged with honey-yellow; their tibia and tarsi dusky or blackish. Length one-fifth of an inch. XIPHYDRIA Latr. 1. X. MACULATA.-Abdomen black with seven lateral white spots. Inhabits Indiana. S Body black: head punctured on the front; with two small spots above the antennae, anterior and inferior orbits extending in a line behind the eye, base of the mandibles, and two lines upon the vertex, white: thorax confluently punctured; about four short lines on the disk, white; a white spot before the wings: wings immaculate: [222] tergum with seven lateral, emarginate, white dots: beneath, on the neck and pectus with a few white spots: feet honey-yellow. Length over two-fifths of an inch. This is undoubtedly much like the X. camelus Linn., which, however, is destitute of spots on the disk of the thorax, the wings are clouded towards the tip, and there are but six lateral spots on the abdomen, the ultimate segment being immaculate. 2. X. BASALIS.-Black; abdomen fasciate at base. Inhabits Indiana. $ Body black, polished: mandibles and palpi white: thorax, anterior segment glaucous on the posterior margin: wings hyaline; first cubital cellule confluent with the first radial, having only a rudiment of the dividing nervure: abdomen, two basal segments honey-yellow, more or less intermixed with black: feet honey-yellow; posterior tarsi and tibiae black, the latter white at base. Length seven-twentieths of an inch. Found in the latter part of May. 1835.] 682 BOSTON JOURNAL LYDA Fabr. L. OCREATA.-Yellowish-green, antennae and spots blackish. Inhabits Indiana. 9 Body yellowish-green: head with a spot on the stemmata and three lines behind, blackish; one or two brownish lines beneath the eyes and an obsolete one before the eyes: mandibles piceous at tip: antennae black; basal joint dull whitish beneath: thorax with a transverse black line on the collar near the neck; another behind the collar; about four brown spots, of which the inner [223] ones are smallest; a larger brown spot behind the anterior wings: wings hyaline, with fuscous nervures; carpus greenish in the middle: tergum blackish, dull greenish in the middle: tarsi and tibiae exteriorly dusky: posterior tibiae blackish. Length nearly two-fifths of an inch. XORIDES Latr. X. HUMERALIS nob.-Contributions of the Maclurean Lyceum, p. 74, [ante, 1, 378] where I placed it, agreeably to Jurine, in his genus Anonmalon. - Antennae entirely black: tergum, first segment on each side with two longitudinal impressed lines; second and third segments each with an impressed oblique line each side at their bases: trochanters partly white; anterior and intermediate feet varied with whitish. Length over two-fifths of an inch. BRACHYGASTER Leach. (EVANIA F.) B. RETICULATUS.-Black; first joint of the antennae, and anterior pairs of feet piceous. Inhabits Indiana. Body black, reticulate with large punctures: antennae not longer than the trunk, with close set, subequal joints; first joint subclavate, piceous, longest; second joint not longer than broad, shortest, about half the length of the third: punctures on the posterior face of the metathorax more dilated than those of the thorax: wings hyaline; nervures fuscous: petiole about as long [Vol. I. OF NATURAL HISTORY. 683 as the abdomen, punctured: abdomen orbicular, polished, impunctured: feet, two anterior pairs piceous. [224] Length about one-fifth of an inch. I agree with Leach in the propriety of separating this group from Evania. In addition to the great dissimilarity of the neuration of the wings, the proportional length of the posterior feet and of the antennae is quite different. PIMPLA F. 1. P. HIJMIDA.-Black; feet yellow; thorax with white lines; abdomen with white lateral spots. Inhabits Indiana. Body black, transversely rugulous; anterior orbits and palpi white: thorax with rather large, transverse wrinkles; wing-scale, line before the wing, and two abbreviated dorsal lines white: wings immaculate: nervures blackish; stigma at base whitish; second cubital cellule petiolated: scutel, posterior margin white: abdomen falcate; segments, excepting the first, with a rather large, rounded, whitish, lateral spot: oviduct at least as long as the body; pectus and feet honey-yellow: tarsi whitish, incisures dusky: tibiae whitish, posterior pairs blackish at tip. Length over half an inch. Form and magnitude of P. pterelas nob., which, however, is destitute of white spots and lines. 2. P.? PETIOLATUS.-Black; varied with yellowish-white; second cubital cellule minute, petiolated. Inhabits Indiana. Body black, densely punctured: hypostoma, mouth and antennas beneath whitish: thorax with a wide, white line before the wings: wings hyaline; nervures blackish; stigma whitish towards the base; second [225] cubital very minute, the petiole being elongated: scutel dull honey-yellow: tergum densely punctured; two basal segments with an elevated, abbreviated line; that of the second segment parted into several at base, that of the first segment dilated into a groove at base; basal segment with a tubercle each side and an elevated line on the lateral margin, continued on the second segment: pleura and pectus honey-yellow varied with white: coxae and trochanters white; posterior 1835.] 684 BOSTON JOURNAL pair of coxse honey-yellow: feet pale honey-yellow; posterior pair of thighs at tip, their tibiae from the middle to the tip and their tarsi black: venter, in the middle, white. Length nearly three-tenths of an inch. A small frontal escutcheon and sessile abdomen led me to place this insect here, although the palpi are not dilated and the wing cellules differ. AGATHIS Latr. 1. A. POLITA.-Black; antenna, tibia and tarsi yellowish. Inhabits Indiana. % Body deep black, highly polished: head yellow: vertex, front and eyes on the posterior margin, polished, black: antennae honey-yellow: mandibles honey-yellow, black at base and tip: posterior orbits and posterior margin of the vertex, yellow: occiput obscure honey-yellow: thorax with a double, yellow, central spot, cordate spot on the scutel, abbreviated, transverse line beneath it, and posterior margin of the metathorax, yellow: wings blackish-brown; second cubital cellule quadrangular: tergum with a yellow band on the posterior margin of the first and second segments, slightly interrupted [226] in the middle: feet honey-yellow: posterior thighs black: the tibiae pale, and tarsi yellow. V Thorax with a hardly visible, piceous vitta on each side of the central spot; abdomen towards the tip attenuated. Length nine-twentieths of an inch. 2. A. ORNATA.-Black, varied with yellow; tergum yellowish, fasciate with fuscous. Inhabits Indiana. S Body black, polished: head yellow, a black frontal spot confluent with a black transverse line of the vertex, that is continued on the posterior margin of the eyes: antennae honey-yellow, somewhat dusky above: mandibles blackish at tip: thorax with a broad, yellow margin, interrupted before, and double central spot: scutel and two or three small spots beneath it yellow: metathorax with a small spot behind the wing and posterior margin yellow: wings fuliginous: stigma and costal nervure honey-yellow; second cubital cellule quadrangular: tergum yel[VoL 1. OF NATURAL HISTORY. 685 low, becoming greenish behind, segments with a broad blackish band at base, the anterior bands broader: pleura with more of yellow than black: feet yellow: coxas varied with honey-yellow: posterior thighs, their tibiae at tip, and tarsi at tip, honey-yellow. Length less than half an inch. Resembles the preceding. ICHNEUMON. 1. I. SUTURALIS.-Ferruginous; scutel yellow; sutures black. Inhabits North America. Body pale ferruginous: antennse black beyond the [227] middle; trunk with black sutures: scutel more or less tinged with yellow: wings tinged with ferruginous; carpus yellowish; nervures blackish; central cellule pentangular, the side on the radial cellule rather smallest, basal and apical sides longest, not parallel: metathorax with slightly elevated lines in the form of an H: tergum with the apical sutures not black; basal segment with two slightly elevated longitudinal lines: tibia, posterior pair black at tip: venter, basal segment black; sutures not black: oviduct not longer than the breadth of the anal segment. Var. a. Front, scutel and basal joint of the tergum at tip, yellow. Var. t. Sutures of the tergum not obviously black. Var. y. Somewhat polished. A common species, of which I obtained specimens in Mexico; it is also found in Pennsylvania, Indiana and Missouri. This most resembles the ferrugator Swederus, (Trans. Stockholm Soc. for 1787,) which I have not met with, unless this should prove to be a variety of it, which is very doubtful and even improbable. 2. I. MALACUS nob. Contrib. Macl. Lyceum i. p. 72.-To " abdomen with an impressed line each side," ought to be added beneath the edge; this is a character, however, common to many species. The tergum, in a particular light, has a slight tinge of blue. [Ante, 1, 376.] 3. I. MORULUS nob. (ibid. p. 73.)-Annulation of the antennae beginning with the seventh or eight joint and ending with the fourteenth. The tibiae and tarsi are honey-yellow; and the oviduct hardly extends beyond the tip of the abdomen. 1835.] 686 BOSTON JOURNAL It resembles the malacus, and requires the additional description I have now given, to be distinguished from it. [228] I have found this species in Indiana, Missouri and the North-west Territory. The "acute angle" of the metathorax is prominent spiniform. 4. I. OTIOSUS nob. (ibid, p. 69.)-Occurs in Indiana and North-west Territory. It resesembles unifasciatorius nob. Amer. Entom. vol. ii. [ante, 1, 48,] but is rather smaller, the annulation of the antenna is differently situated, and it has two abbreviated white lines on the middle of the thorax. 5. I BREVICINCTOR nob. Amer. Entom. pl. 22.-Terminal segment of the tergum with a large, white, rounded spot. 6. I. PARATA nob. Contr. Macl. Lye. p. 68.-The following is a description of the opposite sex, and of some of its varieties. Body black: head with yellow orbits, mouth and hypostoma: antennae beneath dull honey-yellow; basal joint beneath yellow: thorax with two small abbreviated lines on the disk, line before the wings approaching before, and wing-scale yellow: scutel yellow: wings slightly tinged with fuliginous: nervures pale brownish; stigma dull honey-yellow; second cubital cellule pentagonal, the two recurrent nervures with a short process near their middles: metathorax with a dilated spot each side, often confluent, and a small line under the scutel: tergum with four dilated yellow bands: feet yellow; posterior thighs, excepting their base and their trochanters, black; posterior tibiae at tip black. Length over three-fifths of an inch. Var.,. Tergum with but two bands. Var. M. Metathorax immaculate behind. Var.?. Bands of the tergum contracted in the middle. Var. a. Short lines of the thorax confluent, so as to form a lunate spot. [229] Var. e. Short lines of the thorax obsolete. A very common species. I have taken it in Missouri, Indiana, Pennsylvania and N. W. Territory. 7. I. COMPTUS.-Black; tergum with a yellow band on each segment. Inhabits United States. [Vol. I. OF NATURAL HISTORY. 687 Body black: head with yellow hypostoma, orbits and cheeks: thorax with a line before the wings, two slender parallel lines, nearly as long as the disk, on the middle, wing-scale, and often a short line between the wing and scutel, yellow: scutel yellow: wings tinged with fuliginous; second cubital cellule pentagonal, the anterior recurrent nervure with a short process near the middle: metathorax with a short transverse line at tip of the scutel and two dilated longitudinal spots, yellow: tergum with a dilated yellow band on each of the segments, the 2d and 3d widest: feet yellow, or honey-yellow. 9 with a whitish annulation rather beyond the middle line of the antennae. Length half an inch. Resembles the preceding, but differs in many characters, as the two descriptions will prove. 8. I. NAVUS.-Black; orbits, line before the wings and lateral margin of the scutel, yellow. Inhabits United States. Y Body greenish-black; head with narrow yellow orbits: palpi dull yellowish: thorax with a slender line before the wings yellow: wings a little fuliginous; nervures fuscous: scutel with a yellow lateral margin: metathorax with a line beneath the scutel generally interrupted into two distant dots: thighs at base and tip, tibiae at tip, and tarsi, with a slight tinge of piceous: antenna annulate. [230] % Hypostoma and mouth yellow: feet with the thighs at base and tip, tibiae at tip and base of the joints of the tarsi, dull yellowish. Length from nine-twentieths to three-fifths of an inch. May be distinguished from brevicinctor, unifasciatorius, and otiosus nob. by its black scutel; and from morulus aud malacus nob. by having a yellow line before the wings. I have found it in Pennsylvania, Indiana and Louisiana. 9. I. DEVINCTOR nob. Amer. Entom. vol. ii. [Ante, 1, 48.] It varies in having the scutel black and the feet entirely black. Another variety has the tibiae and tarsi ferruginous. My largest specimen was sent to me by Dr. Harris. Inhabits Indiana. 1835.] 688 BOSTON JOURNAL 10. I. DUPLICATUS.-Black; abdomen rufous; metathorax with yellow marks. % Body black: hypostoma, palpi and orbits yellow: antenna with a whitish annulus beyond the fifteenth joint: thorax with the dorsal impressed lines not deep, and extending from the middle to the anterior margin; a yellow line before the wings; wing-scale dull yellowish: scutel bright yellow, a little convex: wings slightly tinted with fuliginous; stigma dull honey-yellow; second cubital cellule four-angled; the recurrent nervures with slight processes: metathorax with a large yellow W behind, and a yellow spot at tip of the scutel: tergum rufous; second segment not distinctly excavated at base each side; first segment as long as the second, slender, black at base and tinged with yellow at tip: coxae having a yellow spot: thighs black, the two anterior pairs varied with yellowish towards the tip: tibia yellow; anterior pairs having a black line behind: posterior pair black at [231] tip aud at the extreme base: tarsi yellowish, terminal joint black at tip. % Thorax with a quadrate yellow spot on the middle. Length over three-fifths of an inch. The form of the abdomen is that of an Alonmya Panz., but the wings are not remarkably short, nor are the antennae convoluted. The markings of the metathorax are much like those of I. pectoralis nob. 11. I. RESIDUUS nob. Contr. Mad. Lye. p. 73, resembles sutura'is nob., but is much smaller, with tricolored antenna. CRYPTUS Fabr. 1. C. ORBUS.-Second cubital cellule incomplete; thorax with two dorsal yellow lines. Inhabits Indiana. Body black: orbits and hypostoma white: thorax with two lines on the disk and collar white: scutel, transverse line beneath it, and line each side at its base diverging towards the base of the wings, white: wings hyaline; nervures fuscous; second cubital cellule small, rounded, pentangular, the nervure of division from the third cellule wanting: metathorax whitish with about three black abbreviated lines: abdomen long, tapering to the base: [Vol. I. OF NATURAL HISTORY. 689 tergum with the posterior margin of the first and second segments white; remaining segments more or less yellowish: pleura white, with a black furcate line: pectus and coxve white: feet honey-yellow: posterior feet, coxea with a black line; tarsi white; tibiae at tip and base blackish. Length less than one-fourth of an inch. 2. C. DISCITERGUS.-Whitish varied with black; tergum black, disk white. [232] Inhabits Indiana. Body white, slightly tinged with yellow: antenna black: vertex with a black dot on the locality of the stemmata: thorax with an abbreviated black vitta before, and another vitta on each side, confluent upon the scutel, which is also black: metathorax black on the disk: wings hyaline; nervures brown: tergum polished, black, with a dilated whitish spot in the middle; broadest rather behind the middle, and tapering to the base: oviduct less than half the length of the abdomen: posterior thighs with a blackish line each side: posterior tibiae blackish at base and at tip. Length nearly three-twentieths of an inch. Spins an oval, silken cocoon, of a white color slightly tinged with reddish. 3. C. CONQUISITOR.-Black; tergum with the posterior margins of the segments white; feet honey-yellow; posterior tibixa and tarsi with black joints. Inhabits Indiana. Body black, punctured; palpi white; thorax, punctures minute; a longitudinal white line before the wings: metathorax not distinctly punctured on the disk: wings very slightly tinged with dusky; nervures blackish; stigma rather large, with its base and tip whitish; second cubital cellule oblique: tergum densely punctured on every part; segments on their posterior narrow margins white: oviduct about half the length of the abdomen: feet honey-yellow; intermediate and posterior tarsi white, the joints black at their tips; posterior tibise black, white in the middle. Length one-fourth of an inch. 1835.] 44 O90 BOSTON JOURNAL Resembles inquisitor nob., but the posterior margins of the segments of the tergum are white. [233] 4. C. DucTILIS.-Second cubital cellule petiolated; abdomen falcate. Inhabits Indiana. Body black; basal joint of the antennae beneath and mouth whitish; thorax without obvious impressed lines: wings hyaline; nervures fuscous; second cubital cellule minute, petiolated: abdomen arcuated, slender at base, more dilated and compressed towards the tip, but not truncate; honey-yellow, dusky at base: oviduct more than half the length of the abdomen, a little recurved, black: feet honey-yellow: anterior and intermediate coxe und trochanters whitish; posterior feet rather more dusky. Length under three-tenths of an inch. In the form of the abdomen and general appearance it resembles Anomalon ejuncidus nob. 5. C. TENELLUS.-Honey-yellow; wings banded. Inhabits Pennsylvania. 9 Antennam blackish towards the tip: wings hyaline; a fuliginous band before the middle, and a much dilated or double one beyond the middle including the stigma; stigma triangular, and with the nervures brown; radial cellule wide; second cubital somewhat rounded, the exterior nervure wanting; apical nervure obsolete: metathorax beneath the scutel and at the insertion of the abdomen black: abdomen arcuated, blackish at tip: oviduct half as long as the abdomen. Length nearly three-tenths of an inch. 6. C. INQUISITOR nob. Contrib. Macl. Lye. p. 71.-Tergum rather densely punctured in every part; segments with a transverse, slightly indented, obtuse line in the middle: venter whitish, with black lateral spots. [234] Var. at. Much larger; oviduct hardly over half the length of the abdomen. Length two-fifths of an inch. 7. C. CALIPTERUS.-Wings yellowish, fasciate; central cellule pentagonal. Inhabits Mexico. [Vol. I. OF NATURAL HISTORY. 691 Body pale ferruginous yellow: antenna black, ferruginous at base, and with white semi-annulus on the middle: scutel with its basal angles connected with the thorax by an elevated line: wings yellowish, a black band before the middle, another beyond the middle, connected in the form of a v with the black apical margin; central cellule pentangular, its basal and apical lines being nearly parallel; inferior wings with a dot in the middle, and apical margin blackish: tergum with the third segment dusky or black at its base: oviduct black, nearly as long as the abdomen: posterior tibiae blackish at tip. Length less than three-fifths of an inch. The remarkable resemblance which exists between the present insect and the bifasciatus nob. in point of color, renders it necessary, in order to prevent mistake, that we should observe that in the bfasciatus the oviduct is not half the length of the abdomen, and the central cellule of its wing joins the radial cellule in an acute angle, its basal and apical lines being confluent at the point of the junction with it. 8. C. CESTUS.-Wings hyaline, fasciate; inferior wings dusky at tip. Inhabits Indiana. Body rufous, almost sanguineous, opake: antennae, excepting the two basal joints, black with a white annulus in the middle; wings hyaline, a blackish band on [235] the middle, abbreviated before; another blackish band nearer the tip abbreviated behind; tip, margin dusky; second cubital cellule pentangular, its basal and terminal lines not parallel: metathorax a little rugose each side with a short compressed tubercle each side on the declivity: tergum with the basal segment polished; third segment black at bas.e: oviduct nearly as long as the abdomen: pleura with the incisures punctured: posterior tarsi a little paler. Length half an inch. This is very much like C. calipterus nob., but the wings are hyaline; the cellules somewhat different; the inferior wings destitute of a central spot; the body is of a deep rufous color, &c. 9. C. PLEURIVINCTUS.-Black; segments of the tergum margined with white. Inhabits United States. 1835.] (92 BOSTON JOURNAL Body black: thorax with a short line before the wings and wing-scale yellow: wings hyaline, with a slight dusky tinge nervures blackish; stigma rufous at the stricture; second cubital cellule quadrangular, somewhat oblique, meeting the radial cellule in an angle: abdomen almost sessile: tergum with the first segment excavated near the base; densely punctured; all the segments with narrow, white posterior margins; oviduct exserted, short, hardly half the length of the abdomen: feet honey-yellow; posterior pairs with the knees, tips of the tibia and each tarsal joint black. Length over half an inch. % Hind pair of feet with an annulus on the tibiae and base of each tarsal joint white. The male is much smaller.than the female. I obtained a female from a follicle of the common folliculate [236] Linnsean Bombyx, with transparent wings, which were extremely abundant a few years since in Maryland, causing much apprehension for the safety of the trees of their choice. Some of them were obtained for me by my friend Mr. Gilliams, for examination, when I described them under the name of hyalina, but did not publish the account. 10. C. GRALLATOR.-Ferruginous, with black sutures and wings. Inhabits Indiana. Body ferruginous: head slightly yellowish on the orbits: mandibles black at tip: antennae dusky, before the tip yellowish: thorax with two obsolete, parallel, yellowish lines; sutures before the wings and scutel black: wings violaceo-fuliginous; nervures blackish; stigma ferruginous; second cubital cellule rather large, pentangular, the side of the radial cellule much the smallest; two bullae and recurrent nervures each with one: metathorax with the sutures black; scutel rounded: abdomen clavate, falcate, gradually narrowed to the base, somewhat polished; posterior margins of the segments obsoletely yellowish; base of the segments or incisures black: pleura and pectus with black sutures; separating suture between the pleura and metathorax black, including a yellow line: oviduct as long as the abdomen; posterior [Vol. I. OF NATURAL HISTORY. 693 pair at tibiae and tarsi paler than the thighs; posterior coxae nearly as long as the thighs. Length three-fifths of an inch. This insect differs somewhat in appearance from its congeners. The form of the abdomen, excepting that it is not compressed, the fact that it originates higher upon the metathorax than the others, and the elongated posterior coxse, give it a little the air of a Fcenus, but the numerously jointed antennae place it in this family. [237] 11. C. NUNCIUS.-Black; abdomen excepting the base and tip rufous. Inhabits Pennsylvania. Body black; palpi white, blackish at tip; antennae 9 a long white annulus in the middle; thorax immaculate; two impressed lines: wings hyaline; nervures brown; stigma rather slender; second cubital cellule rather large, pentagonal, the two angles on the radial nervure nearly rectangular; recurrent nervures almost rectilinear: tergam basal segment wholly or in part black; second, third and generally half of the fourth rufous or honeyyellow; remaining segments black: oviduct nearly half the length of the abdomen: feet honey-yellow; posterior pair of tibiae at tip and knees black; posterior tarsi pale yellowish. Length about two-fifths of an inch. I obtained many specimens from the larva of Attacuspromethea Linn. several years ago. 12. C. SUBCLAVATUS.-Black; antennae subclavate, at base and feet honey-yellow. Inhabits United States. Body black: antennae on the basal half piceous or dark honeyyellow, dilating gradually towards the tip, terminal half dusky or black; first joint robust: thorax depressed on the posterior disk, in which are longitudinally confluent punctures; a slightly elevated line before the bi-foveolate scutellar groove: wings, radial cellule rather wide and short: cubital cellule pentangular, sides subequal, angles at the radial cellule nearly rectangular: abdomen 9 oval, honey-yellow, dusky or blackish at base and tip: oviduct nearly half the length of the abdomen: feet honeyyellow. 1835.] 694 BOSTON JOURNAL Length under one-fifth of an inch. [238] Approaches a little to the genus Helwigia by the form of its antenne. I found one specimen in Pennsylvania and another in this State. 13. C. MICROPTERUS,. —Black; feet and middle of the abdomen rufous; wings abbreviated. Inhabits Pennsylvania. Body black: antennae, honey-yellow, with a paler yellow annulation: palpi whitish: wings not reaching the tip of the metathorax: metathorax concave behind; posterior angles a little prominent: tergum polished, suboval; first segment black; second and third honey-yellow; remaining segments black: oviduct half the length of the abdomen: feet honey-yellow, paler at their origin; posterior pair of thighs and tibiae each at tip blackish. Length one-fifth of an inch. This seems to be related to C. abbreviatus Fabr., but it has no " striga alba." OPHION Fabr. 1. O. PURGATUS.-Honey-yellow; two opake dots in the first cubital cellule. Inhabits Indiana. Body pale honey-yellow, somewhat sericeous: antennae rather longer than the body: orbits yellow, dilated before so as to occupy the greater part of the hypostoma: ocelli large, prominent: wings hyaline; stigma slender; first cubital cellule with two opake, subtriangular spots; second cubital cellule none: metathorax with a single, raised, rectilinear, transverse line, near the base. Length about seven-tenths of an inch. This is much like an insect sent me by Mr. Winthem [239] as the ramidulus Fabr., which has also opake wing-spots, but is black on the tip of the abdomen. The bilineatus nob., may be distinguished from this species by having many raised lines on the metathorax and by being destitute of the opake wings-spots. The sexes are similar in color, and both have the opake wingspots, which is not the case in Mr. Winthem's specimens of ramidulus. [Vol. I OF NATURAL HISTORY. 695 2. 0. GLABRATUS.-Honey-yellow; a glabrous spot in the large cubital cellule. Inhabits Indiana. Body dull honey-yellow: head bright yellow: antennae, mouth and stemmata honey-yellow: eyes blackish: wings, first cubital cellule beyond its middle with a longitudinally oval glabrous space, but destitute of any opake spot: metathorax transversely wrinkled near the petiole of the abdomen. Length about four-fifths of an inch. Much like purgatus nob., with a similar glabrous spot in the cubital cellule, but this spot is destitute of any appearance of the opake coriaceous spots which distinguish that species. 3. 0. MUNDUS.-Black; antennae, posterior tibiae and tarsi yellow. Inhabits Indiana. S Body black: head with the front, nasus and anterior orbits greenish-yellow: antennae fulvous yellow; three or four basal joints above black; the first joint beneath greenish-yellow: trunk with rather dense, short hairs: wings purple-black: abdomen much compressed: basal joint cylindrical; second segment as long as the first, or a little longer, compressed towards the tip: anterior pair of the feet yellowish before: intermediate pair with a line before and base of the tibiae yellowish: [248] posterior pair with the tibiae, excepting the tip, and the tarsi, excepting the terminal joint, fulvous-yellow. Length nearly one inch. Resembles flavicornis nob., which, however, has the first segment of the abdomen considerably longer than the second. It is also allied to morio Fab., but that species is described to have the wings blue, tipped with brown, and the legs black, the anterior ones testaceous. 4. 0. BILINEATUS nob. Contributions of the Maclurian Lyceum, p. 75. This is the analogue of the 0. luteus Fab. 5. 0. BRACHIATOR.-Black; abdomen and feet yellowish; a petiolated second cubital cellule. Inhabits Indiana. Antenna, first joint beneath, white: mandibles whitish, piceous 1835.] 696 BOSTON JOURNAL at tip: palpi white; wings hyaline; stigma slender, blackish; second cubital cellule rather large, quadrangular, more or less petiolated from the radial cellule, anterior recurrent, nervure a little arcuated, not angulated and with a white bulla: second recurrent nervure rectilinear, with a white bulla; metathorax with an impressed longitudinal line, and a transverse raised one at base; abdomen honey-yellow; first joint white at base; second joint blackish above: feet, posterior pair honey-yellow, tarsi blackish; intermediate pair white, with honey-yellow thighs; anterior pair white. Length nine-twentieths of an inch. I place this in the genus Ophion because of the compressed, falcate abdomen, notwithstanding the existence of the second cubital cellule. [241] ANOMALON Jurine.* 1. A. ATTRACTUS.Black; feet and base of the abdomen honey-yellow. Inhabits Indiana. Body black, somewhat polished: frontal orbits, part of the hypostoma and mouth yellowish-white: thorax, line before the wings and wing-scale whitish: wings hyaline; nervures fuscous, towards the base whitish; stigma whitish towards the stricture; second cubital cellule destitute of the exterior nervure; recurrent nervures each with a bulla: scutel pale yellow: metathorax with a transverse pale yellow line beneath the scutel: abdomen honey-yellow; posterior half of the 4th segment and the remaining segments black; first segment sessile, with an arcuated groove in which are many elevated lines; 2d segment with two less arcuated ones; 3d and 4th segments each with one of the grooves; all the yellow portion of the tergum has large close-set punctures: feet honey-yellow, origin of the anterior pair pale yellow: posterior tibia black towards the base, with a large white annulus; posterior tarsi black: pleura with a white line before: pectus * I place in this genus, those species that are destitute of the small cubital cellule, and which have not the abdomen so compressed and truncated; as to associate with Ophion. [Vol. I. OF NATURAL HISTORY. 697 having an angulated white line: oviduct not extending beyond the tip of the abdomen. Length one-fifth of an inch. 2. A. EJUNcIDvs. —Ferruginous, reticulate with large punctures; pectus black. Inhabits United States. [242] Body ferruginous, with crowded, discoidal punctures, giving the surface a reticulate appearance: head without obvious punctures; orbits tinged with yellow: antennae blackish; first joint yellowish beneath: thorax with a slightly impressed line before, and'another each side behind, obsolete; dilated sutures about the scutel black: wings hyaline; nervures blackish; stigma rather slender; second cubital cellule none, the enterior recurrent nervure obtusely arcuated; second recurrent nervure rectilinear; abdomen slender, dull honey-yellow, piceous black above and at tip, without large punctures: oviduct as long as the basal joint of the abdomen: feet dark honey-yellow: pleura above the anterior feet with oblique lines: pectus black. Length about two-fifths of an inch. 3. A. MELLIPES.-Black; feet honey-yellow; posterior thighs armed with a spine. Inhabits Indiana. Anomalon mellipes nob. Contrib. Macl. Lyc. p. 74. 9 Body black, polished: head with the distance behind the eyes considerable: labrum dull piceous: palpi dull whitish: thorax with the impressed lines rather deep, rendering the thoracic lobes very distinct: wings with a slight dusky tint; metathorax with an obvious spine on each side of the posterior declivity: feet honey-yellow: coxae and thighs robust, particularly those of the posterior pair, of which the thighs are armed beneath near the tip with a prominent spine: oviduct as long as the body, or a little longer, somewhat compressed towards the tip. Length nearly seven twentieths of an inch. % Anterior and intermediate thighs rather less robust. Length less than seven-twentieths of an inch. [243] Has some resemblance to a Xorides, but the mandibles are bidentate, and the metathorax and anterior part of the thorax differ. It is a very distinct species. I have thought it may be 1835.] 698 BOSTON JOURNAL useful to give the above more detailed and characteristic description than that quoted, which is too short and unimportant. A good name for this species would be gladiator. 4. A. DENSATUS.-Black; thorax rufous; tergum densely punctured. Inhabits Indiana. Body black, with short, small hairs: above with a white spot; face, below the antennae, and mouth, pale yellowish: antennaD ----: thorax reddish-brown; with an abbreviated black vitta: scutel reddish-brown: wings hyaline; nervures fuscous; stigma yellowish: abdomen sublinear, not attenuated towards the'base, but in the first joint: tergum with dense, rather large, but not profound punctures; posterior edges of the segments slightly rufous: oviduct nearly half the length of the abdomen: feet dull yellowish; coxwe and trochanters whitish; tips of the tibiae and of the tarsi dusky. Length y over one-fifth of an inch. 5. A. RECURVUS.-Black; feet honey-yellow; posterior tibiae and tarsi with black joints. Inhabits Indiana. Body rather slender, black: head not extended behind the eyes: orbits, nasus and palpi white: thorax trilobate (as in Xorides and Pimpla) with a white line before the wings: metathorax long, convex: tergum equal in width, basal segment a little narrower at base; segments subequal in length; first and second segments with a transverse impressed line near the tip; remaining segments, excepting the last, with a lateral, transverse, impressed [244] line at their middles: oviduct less than half the length of the abdomen, a little recurved at tip: feet honey-yellow; intermediate and posterior pairs of tarsi white, the joints black at their tips; posterior pair of tibiae black, white in the middle. S much smaller: thorax tinged with piceous; hypostoma white; pectus honey-yellow; feet paler than in the female. Length three-tenths of an inch. The metathorax' is convex as in Xorides, elongated, but the head is transverse and not globular. [Vol. I. OF NATURAL HISTORY. 699 6. A. LINEATULUS.-Black; anterior pairs of feet honeyyellow; tergum with minute lines. Inhabits Indiana. Body black, sparsely punctured: palpi whitish: thorax with two deeply impressed lines, uniting behind: wings hyaline: nervures fuscous: scutel at base with a dilated indentation: metathorax with raised lines: abdomen gradually tapering to the base: tergum on the three basal joints, with numerous, small, longitudinal, raised lines; fourth and following segments with much more minute transverse ones: feet, anterior pairs entirely honey-yellow; posterior pair black, the incisures yellowish; posterior tarsi yellowish. Length S over one-fourth of an inch. This has some resemblance to nellipes nob., which, however, has the posterior thighs thickened and with an obvious tooth on their inferior edge. The lineations of the tergum of the three basal segments distinguish this species. 7. A. DIVARICATUS.-Black; tergum with two oblique, impressed lines on each segment. Inhabits Florida. [245] Body black: wings with fuscous nervures, dull yellowish towards the base: abdomen nearly sessile, minutely and densely punctured; first segment with two longitudinal, elevated lines; second, third and fourth each with two very obvious, impressed lines, originating at the base and divaricating towards the posterior angles: feet honey-yellow: posterior pair, thighs at tip, tibiae at tip and annulus near the base, and posterior halves of the tarsal joints black. Length over two-fifths of an inch. Has considerable resemblance to Ichneumon inqugsitor nob., but the impressed lines of the tergum are very oblique, and the wings are destitute of the small second cubital cellule. 8. A. EMARGINATUS nob. Contrib. Macl. Lyceum, p. 76.This species is very remarkable by the prominence of the head in front of the insertion of the antennae, which hence appear to be situated in a deep foveola; this character, together with the 1835.] 700 BOSTON JOURNAL very short, robust feet, proves a close relation to Alomzya, to which in fact I would refer the species, but that there is no appearance of a second cubital cellule; the antenna have thirty-six joints. PELTASTES Illig. 1. P. POLLINCTORIUS.-Black; two thoracic spots, scutel, and bands of the tergum yellow; tibiae black. Inhabits Pennsylvania and Indiana. Body black, densely and closely punctured: head: thorax with a yellow line before the wings: scutel quadrate: lateral edge elevated; posterior margin, including the prominent spines, yellow: wings with a tint of ferruginous; nervures fuscous: stigma paler in the [246] middle: metathorax with a short, transverse line beneath the scutel, and dot each side at tip yellow: tergum slightly tinged with violaceous, particularly towards the tip; posterior margins of the segments yellow excepting the second and sixth, of which the former has the lateral angle obscurely yellow: feet, anterior pairs honey-yellow; the thighs black behind; posterior pair black, the thighs yellow at base. Length about seven-tenths of an inch. % Basal joint of the antennae beneath whitish: frontal escutcheon on its lateral and basal margins, extending a short distance upon the orbit, yellow: dilated joint of the palpi dull whitish: metathorax with a yellow spot near the posterior coxa: coxae and knees honey-yellow. Length over two-fifths of an inch. The female was presented to me several years ago by Mr. Lesueur, who obtained it in the neighborhood of Philadelphia. It is much like P. necatorius Fabr., but is considerably larger, and that species is destitute of spots on the metathorax, and its posterior tibiae are yellow. The male was taken by myself in Indiana. BANCHUS Fabr. 1. B. NERVULUS.-Black; anterior pairs of feet and posterior tarsi yellow. Inhabits Indiana. Body black: mandibles polished at tip: tongue rather promi[Vol. I. OF NATURAL HISTORY. 701 nent: wings dark violaceo-fuliginous; nervures blackish; stigma honey-yellow; second cubital cellule quadrangular, attached to the radial cellule by a slightly petiolated angle; first recurrent nervure with a prominent [247] process and a small white spot; second recurrent nervure much undulated, margined with white one half its length; exterior nervure of the cellule with a white spot: feet, anterior pairs, excepting the coxve and trochanters, honey-yellow; posterior pair black, their tarsi yellow. Length at least half an inch. 2. B. JEQUATUS.-Black; antennae and feet, excepting the hinder thighs yellow. Inhabits Indiana. Body black: antennae yellow, at tip and base a little dusky: hypostoma with two slight lobes situated longitudinally, and with the mouth and orbits yellow: thorax with a slightly indented line each side before and another over the wings: wings violaceo-fuliginous; nervures and stigma blackish, the latter with a whitish dot at its stricture; second cubital cellule pentangular, the two angles on the costal side rectangular and the three corresponding sides equal, the two anal sides shorter than equal, two sides with a white spot, and the two recurrent nervures with each a white spot: wing-scale and junction of the wings with the thorax honeyyellow: feet, anterior pairs honey-yellow; posterior pair with the tibiae and tarsi yellow. Length about half an inch. It has much resemblance to Agathis polita nob. 3. B. FUGITIVUS.-Second cubital cellule petiolated; posterior tibiae annulate. Inhabits Indiana. Body black: antenna in both sexes black: mandibles and palpi white: wing-scale white: wings hyaline; nervures black, whitish at base; second cubital cellule very small, petiolated from the radial cellule: metathorax [248] not obviously excavated behind, but with somewhat raised lines; abdomen arcuated; towards the tip rather abruptly clavate; punctures very small: oviduct as long as the tip of the abdomen: feet honeyyellow, with a white reflection; posterior tibiae white with black 1835.] 792 BOSTON JOURNAL tip and base; posterior tarsi black, base of the first joint white, in the male the white of the posterior tibia is less obvious. Length from one-fourth to three-tenths of an inch. I obtained a specimen from a very pretty cocoon which is somewhat cylindric, white, with two maculated black bands. ACtENITUS Latr. 1. A. DEcORUS.-Black varied with whitish; posterior tarsi whitish. Inhabits Indiana. 9 Body black: orbits white, interrupted above and before: hypostoma white, nasal sutures black each side: mandibles black: antennae with ten or twelve white joints beyond the middle: thorax with the line over the wings, wing-scale, line before the wings, and lateral and posterior margin of the anterior lobe white: scutel white: wings hyaline, with a rounded fuscous spot at tip: metathorax, a small spot under the scutel and behind whitish: abdomen, posterior margins of the segments white; in profile olavate; dorsal view fusiform: venter white; scale prominent, acute: oviduct much longer than the abdomen: pleura varied with yellowish: feet honey-yellow: posterior pair of coxa with three large yellow spots; incisures of the posterior thigh black; posterior tarsi whitish. [249] Length nearly three-fifths of an inch. % Orbits white uninterrupted: thorax more variegated with white; antennas with about eight white joints: scutel with a black disk, the white margin extending forwards in the form of a V: metathorax black varied with white, spines prominent: tergum, first joint on the lateral margin white as well as the tip: second segment with a much arcuated line each side of the middle, curving forwards; remaining segments with the posterior margins dull whitish; venter blackish, somewhat banded; pleura whitish, with a black line under the wings; anterior portion black with white lines; pectus pale honey-yellow; coxe, posterior pair with a black line. Length nine-twentieths of an inch. This is a very prettily variegated species. [Vol. I. OF NATURAL HISTORY. 703 2. A. MELLEUS.-Honey-yellow: antenna white, blackish at base. Inhabits Indiana. Y Body honey-yellow; head with a large black spot above the antenne; beneath the antennae yellowish antenna white; basal third above black; occiput with a dusky spot; scutel yellow, the sutures around it black: wings with a blackish tip; tergum, sutures somewhat dusky; tibiae and trochanters yellowish. Length two-fifths of an inch. BASSUS Fabr. 1. B. SANCTUS.-Black; metathorax, abdomen and posterior feet sanguineous. Inhabits Indiana. 9 Body black: palpi tinged with piceous.; thorax, pleura, pectus, and two anterior pairs of feet immaculate; [250] wings blackish-violaceous, with a hyaline literation in the middle; nervures black: separating nervure between the first cubital and first discoidal cellules widely interrupted; second cellule triangular cubital cellule rather large; metathorax and abdomen bright sanguineous; posterior coxe and thighs bright sanguineous, the intervening trochanter black: posterior tibia dull sanguineous, their tips dusky, their tarsi blackish; oviduct nearly as long as the body, ferruginous, with black valves. Length over three-tenths of an inch. At first view resembles Bracon initiator F. 2. B. LIMITARIS.-Black; feet honey-yellow. Inhabits Missouri and Indiana. Body black; palpi white; thorax longitudinally indented behind the middle; wings nearly hyaline, at base yellowish; nervures fuscous; stigma large; first cubital cellule complete; second rather large, quadrangular; radial cellule also rather large; feet honey-yellow; posterior pair of tibiae whitish, their tips and annulus near the base black; posterior pair of tarsi black. Length seven-twentieths of an inch. Var. a. Maxillary palpi, first joint black. 9 Oviduct hairy, decurved, somewhat robust. 1835.] 704 BOSTON JOURNAL 3. B. GIBBOSUS.-Black; nasus gibbous; terminal joints of the antennae short. Inhabits Indiana. 9 Body somewhat polished, black; nasus with a prominent gibbosity; antennae with the joints of the terminal third not longer than broad: wings slightly fuliginous: stigma robust; the abbreviated nervure at base stigma very robust and very near to the costal nervure: tergum, second segment at base with two large foveolae; oviduct as long as the abdomen and thorax to gether; [251] feet, terminal half of the thighs and basal portion of the tibiae dull honey-yellow. Length hardly over one-tenth of an inch. The smallest species I have met with. BRACON Jurine, Latr. t Separating nervure between the radial and cubital cellule arcuated; second cubital cellule not very much elongated. 1. B. PECTINATOR.-Black; abdomen yellowish; wings blackish; cellules regular. Inhabits United States. Head rather large and robust, concave behind at the neck; rostrum not prominent; thorax with the dorsal sutures dilated and containing very obvious transverse lines; the transverse suture at base of the scutel with five elevated lines; wings dark violaceous; second cubital cellule shorter and smaller than the first, quadrangular; nervure forming the radial cellule rectilinear; oviduct exserted, black. Length 9 to tip of wings nearly two fifths of an inch. I am not certain whereabout this insect was captured, but I think I obtained it in the N. W. Territory when engaged on the northern expedition with Major Long. It resembles the populator, but the rectilinear form of the nervure of the radial cellule places it nearer rugator nob., and initiator F.; from the former it is distinguished by the more simple surface of the tergum, and from the latter by the much shorter second cubital cellule. 2. B. RUGATOR.-Sanguineous; head, wings and feet blackish; tergum wrinkled. Inhabits Indiana. [Vol. I. OF NATURAL HISTORY. 705 Rostrum distinct: head piceous; antennae black; [252] thorax polished; wings purplish-fuliginous, with three or four obsolete, small, white spots; cellules regular; tergum with numerous longitudinal, elevated lines on each segment; first segment with the lines transverse and interrupted by a large, elevated oval lobe on the disk, which has a longitudinal line and irregular rugre; the lateral edge elevated; second and third segments with an oblique indented line at base each side; oviduct twothirds the.length of the abdomen, black, clothed with short hairs; feet piceous-black. Length y three-tenths of an inch. The remarkable appearance of the tergum readily distinguishs this species from populator nob., which it resembles. It has a general resemblance to B. initiator Fabr. 3. B. HEBETOR.-Black) head, thoracic lines, tibive and base of the abdomen honey-yellow. Inhabits Indiana. Body black, polished; head pale honey-yellow; antennae, region of the stemmata, of the antennae and spot on the hypostoma, black; mandibles robust, black at tip; thorax with two obsolete, piceous, oblique lines confluent at the middle and terminating in a spot each side of the scutel; wings dusky, nervures black; stigma rather large; nervure from the stigma, oblique to the second cubital; abdomen depressed, oblong-ovate; coxea, knees and base of the tibiae, yellowish-white: oviduct shorter than the abdomen. S Abdomen whitish at base. Length nearly one-tenth of an inch. The antennae of the male are twenty-two-jointed and those of the female are short, more robust, fourteen-jointed. The short, thoracic piceous lines have sometimes a cruciform appearance by being continued around the scutel. [253] 4. B. DORSATOR.-Yellowish, antennae, three thoracic lines and tip of the tergum, black. Inhabits Indiana. Body yellowish, somewhat fulvous, a little polished: antennae short, rather robust, black; area of the stemmata blackish: tho1835.] 45 706 BOSTON JOURNAL rax with three distant black, short lines, the anterior one shortest and impressed: wings hyaline, slightly dusky towards the base; cellules regular; nervures brownish; stigma triangular, yellowbrown: tergum with a black dot on the first segment, and dusky on the disk or towards the tip: pleura with a blackish line behind the wing: pectus blackish on the disk: feet with the tarsi dusky at tip. 9 Oviduct half as long as the abdomen. Length to the tip of the wings less than three-twentieths of an inch. Much like hebetor, but is somewhat larger and more robust; it may be distinguished at first by its lighter color. As in that species the first cubital cellule is wider by one-third than the second at their junction, and the latter is hardly as long as the first, in either sex. 5. B. ARGUTATOR.-Honey-yellow; antennae, terminal joint of the tarsi and oviduct, black. Inhabits Indiana. 9 Body honey-yellow, somewhat polished: antenna black: mandibles piceous: hypostoma with a transverse, dilated indentation: stemmata blackish: thorax immaculate: wings very slightly tinged with dusky; nervures blackish; stigma yellowish in the middle; second cubital cellule as long or rather longer than the first, and nearly as wide at their junction: tergum of a rather paler yellow than the thorax, and opake with minute punctures or granules, oblong-oval: oviduct black, half as long as the abdomen: tarsi, terminal joint blackish. [254] Length to tip of wings over three-twentieths of an inch. Of the same general habit with hehetor, but is considerably larger, and may be known at once apart from it, by the equality, at their junction, of the 1st and 2d cubital cellules, by the punctured tergum, &c. 6. B. VESTITOR.- Writh prostrate hairs; basal joint of the tergum bisinuate at tip. Inhabits Mexico. S Body with very numerous, minute, prostrate hairs; head blackish, with dilated dull fulvous orbits; before the antennae [Vol. I. OF NATURAL HISTORY. 707 more prominent than above, and convex: antennae dull yellowish: thorax dull fulvous, with three dilated black lines, of which the middle one is abbreviated before the middle: metathorax dusky: wings hyaline: tergum yellowish, somewhat polished towards the tip; lateral edge dusky; first segment at tip bisinuate or three-angled: feet paler: thighs a little dusky. Length of the body three-twentieths of an inch. Somewhat resembles the preceding, but the hairy vesture distinguishes it from all the foregoing species. 7. B. SCRUTATOR.-Yellowish; with prostrate hairs; 1st joint of the tergum bisinuate at tip, black at base. Inhabits Indiana. 9 Rather dull honey-yellow, with minute hairs: head more prominent and paler beneath the antennae: antennmx dull yellowish: stemmata black: thorax with a slender black line each side: pleura with a black oblique line under the wings: metathorax black: wings hyaline; nervures pale brownish; stigma yellowish at base; 2d cubital cellule shorter and narrower than the first: tergum elongate sub-obovate, black at base, this color extending paler on each side; middle of the disk towards the base [255] pale yellow extending on the tip of the first segment, which is sub-bisinuate or slightly three-angled; second segment as well as the first with an elevated line: oviduct not exserted beyond the tip of the abdomen, black. b Third and following segments of the tergum annulate with black; no elevated line on the tergum, nor three-angled appearance of the tip of the first segment. Length less than one-fifth of an inch. Resembles vestitor, but is more slender, larger, and differently marked. 8. B. RUGULOSUS.-Honey-yellow; head, breast and three lines on the thorax black. Inhabits Indiana. Body honey-yellow; head with rather wide and slightly impressed punctures, which on the front are transversely confluent into minute ruga: mouth obscure piceous: antennae obscure piceous, black towards the tip: thorax somewhat tinged with sanguineous, and with three abbreviated, blackish vitte; behind 1835.] 708 BOSTON JOURNAL the intermediate vitta is a rugous space, with a slightly elevated line: wings hyaline; nervures and carpus blackish; cubital cellules three; metathorax rugous, with an elevated line: abdomen longitudinally rugous, oblong; with three larger segments, decreasing in length; and three smaller ones at tip, taken together hardly longer than the third: pectus in the middle black. Length one-fourth of an inch. The magnitude of the three basal segments of the abdomen is remarkable in this species. 9. B. TRANSVERSUS.-Granulated; nervure from the stigma nearly transverse. Inhabits Indiana. [256] Body densely punctured or granulated; blackish-piceous: antenna, mouth and feet honey-yellow: wings hyaline; nervures brown; stigma large; nervure from the stigma to the second cubital cellule nearly transverse, so as to make the three angles at its contact, equal: tergum dull honey-yellow at base; first segment with two prominent, parallel lines; second segment occupying three-fourths of the whole surface: oviduct shorter than the abdomen. Length over one-twentieth of an inch. The whole surface has a minutely granulated appearance, and the nervure from the stigma is more than usually transverse, having but a very slight obliquity. In having but two principal segments to the abdomen, this species approaches the genus,Sgajaphus, but the venter is not deeply vaulted as in that genus. 10. B. MELLITOR.-Honey-yellow; antennae dusky. Inhabits Indiana.' Body honey-yellow, yolished: antennae dusky: thorax immaculate: wings hyaline; nervures fuscous; stigma yellowish at base; 2d cubital cellule as long as the first, but somewhat narrower than the greatest width of the latter: tergum short, oval, not polished; paler than the thorax, with minute, prostrate hairs; second segment with an indented dot each side: oviduct black, as long as the abdomen: tarsi, terminal joint blackish. Length of the body three-twentieths of an inch. The wing-stigma is sometimes almost entirely black. [257] [Vol. I. OF NATURAL HISTORY. 709 tt Separating nervure arcuated; second cubital cellule elongated; tll nervure from the stigma inserted at its middle. CELEREON. 11. B. INESCATOR.-Pale dull yellowish; palpi and and feet whitish. Inhabits Indiana. 9 Body dull yellow, with a slight intermixture of honey-yellow, immaculate: antenna blackish towards the tip: mandibles piceous at tip; wings hyaline, with a very slight dusky tinge, and yellowish at base; nervures of the middle of the wing and disk of the stigma fuscous: abdomen oblong subobovate: oviduct black, hardly half the length of the abdomen: palpi long, white: feet white. Length of the body two-twenty-fifths of an inch. 12. B. PULLATOR.-Black; abdomen at base and feet yellowish. Inhabits Indiana. V Body black, a little polished: antennae towards the base obscure yellowish, first joint pale honey-yellow: mouth pale piceous: mandibles at tip blackish; wings hyaline; nervures brownish; stigma fuscous: tergum oblong sub-obovate, disk near the base dark honey-yellow: oviduct longer than the abdomen, black: feet pale honey-yellow. Length less than one-tenth of an inch. 13. B. HONESTOR nob. Contr. Mad. Lye. vol. i. p. 78, belongs also to this subdivision. 14. B. PAULULOR.-Black; abdomen short; feet whitish. Inhabits Indiana. Body black: head large: antennae fuscous, obviously longer than the body: mandibles yellowish: palpi white: [258] wings hyaline; stigma elongated, slender; second cubital cellule elongated, having the nervure from the stigma inserted at about onethird its length: abdomen short: oviduct very short: feet honeyyellow, a little dusky towards their tips. Length less than one-twentieth of an inch. The second cubital cellule is elongated, but the descending nervure from the stigma is inserted considerably behind the middle. ttt Separating nervure between the radial and cubital cellule reclivate. 1835.] 710 BOSTON JOURNAL TOXONEURON. 15. B. VIATOR.-Sanguineous; antenna, vertex, wings and pectus black. Inhabits Indiana. Body rather pale sanguineous: antennae, vertex and dilated frontal spot, part of the hypostoma and mouth, black: thorax with indented lines; a black spot on the middle sometimes obsolete or wanting: metathorax behind black: wings blackish-fuliginous; nervures robust, black; stigma and costal nervure honeyyellow: pleura, pectus and coxme black; the former sanguineous near the wings: tarsi at tip blackish: abdomen depressed. Length one-fourth of an inch. This species and the following differ from the type of the genus Bracon in the from of the radial and third cubital cellules, in consequence of the arcuation of the separating nervure. It is much like populator nob., but among other characters it may be distinguished by the yellowish carpal spot and costal nervure, which are always black in the populator. 15. B. POPULATOR nob. Long's Exp. to St. Peters, Appendix, p. 323, belongs to this subdivision. [259] 17. B. TIBIATOR nob. ibid. p. 322, also of this subdivision. 18. B. EXPLORATOR.-Black; feet partly rufous. Inhabits Indiana. Body black, polished; with small, prostrate hairs: thorax with the impressed lines not remarkably dilated; the transverse one punctured: wings dusky, stigma rather large: feet black; thighs rufous, excepting a small portion at base, posterior pair entirely rufous; tibiae rufous, black at tip. Length three-twentieths of an inch. The thorax and head are much less hairy than those of tibiator nob., and that insect has the wings dusky at tip only; the present also is a smaller species. tttt Second cubital cellule confluent with the third. ALIOLUS. Abdomen of three principal segments. 19. B. TRILOBATUS.-Yellowish-rufous; thorax and vertex black. Inhabits Indiana. [Vol. I. OF NATURAL HISTORY. 711 Body rufous, tinged with yellowish: head black on the vertex: antennae blackish, excepting the two or three basal joints; about as long as the body: mandibles black at tip: thorax somewhat trilobate, black, with an obsolete rufous central spot: scutel black: wings hyaline; nervures and robust carpus black; second cubital cellule confluent with the third; inferior discoidal cellule half as large as the central one: posterior tibiae dusky except at base: coxae yellowish: abdomen oblong subovate, short, dusky at tip; densely punctured, with three segments, decreasing in length; a small, almost concealed terminal segment. Length t one-fifth of an inch. [260] The cubital cellules are but two, the second transverse nervure being entirely wanting, and the nervure forming the anal side of the cubital cellules is very slender; the other nervures being quite robust. If the genera throughout this order, are not to be divided as in the Tenthreclinete, I would propose the separation of this and the following species, under the generic name of Aliolus. The character of the abdomen agrees with this genus; but the neuration of the wings seems to agree rather better with Microgaster. 20. B. THORACICUS.-Black; thorax and feet honey-yellow. Inhabits Indiana. y Head -: thorax honey-yellow, with two oblique, lineated grooves; suture before the scutel much dilated and profound: wings hyaline; radial cellule with the nervures as distinct as the others, regularly arcuated, without any angulation; second cubital cellule much dilated and destitute of the exterior nervure: metathorax black: abdomen minutely punctured or lineated at base, polished towards the tip, oval; second incisure indistinct: oviduct longer than the abdomen: feet honey-yellow. Length less than one-tenth of an inch. MICROGASTER Latr. 1. M. ENSIGER. Black feet and each side of the base of the abdomen yellowish. Inhabits Indiana. Y Body black, with dilated punctures and minute hairs: mouth honey-yellow: palpi white: thorax with a yellow wing-scale; 1835.] 712 BOSTON JOURNAL suture before the scutel impressed [261] and with elevated lines: wings hyaline; nervures fuscous, light brownish towards the base; stigma triangular, fuscous; second cubital cellule destitute of the exterior nervure; terminal nervures obsolete: tergum with large close-set punctures; towards the tip somewhat polished; first segment with a yellow lateral margin, dilating a little towards the tip; third segment with a yellow point on the lateral margin: abdomen each side and beneath, except at tip, yellowish: oviduct black, nearly as long as the abdomen, with rather long hairs: feet honey-yellow; posterior tibiae, excepting at base, black: posterior tarsi blackish, with the incisures pale. C Coxae and anterior pairs of tibiae and tarsi whitish: posterior tibie, at tip only, dusky, at the extreme base whitish; second cubital cellule complete; terminal wing nervures distinct. Length % over one-tenth, 9 less than three-twentieths of an inch. 2. M. MELLIPES.-Black; thorax with oblique, lined sutures; feet honey-yellow. Inhabits Indiana. % Body black: hypostoma somewhat prominent along the middle: stemmata rather prominent: antennae beneath towards the base piceous: mandibles honey-yellow: palpi blackish or fuscous: thorax with two oblique impressed lines confluent behind, in which are several transverse lines; and a transverse more dilated one at the base of the suture; wings hyaline; nervure of the radial cellule as distinct as the others; second cubital cellule destitute of its terminal nervure; apical nervures less distinct than the discoidal ones, but not obsolete: tergum somewhat fusiform, polished, a little hairy at base and tip: venter at base honey-yellow, pale: thighs and coxwe honey-yellow: tibiae and tarsi dusky. Length nearly three-twentieths of an inch. [ 2621 Distinguished at once from the enstiger by the oblique thoracic lines. 3. 3I. XYLINA.-Tergum at tip polished; sides of the venter yellowish. Inhabits Indiana. Body black, much punctured: antennae brownish beneath: palpi white: thorax destitute of oblique lines, but with the [Vol. I. OF NATURAL HISTORY. 713 transverse, dilated, deeply indented groove at base of the scutel, having small raised lines within, which are not very obvious: wings hyaline: nervure of the radial cellule obsolete at base; second cubital cellule destitute of the exterior nervure: stigma triangular, fuscous: tergum oblong-oval, punctured, glabrous, and polished at tip; basal segment rather rough, the lateral edge a little elevated and dull yellowish; venter each side, excepting at tip, dull yellowish: oviduct not exserted beyond the tip of the abdomen: feet honey-yellow, tips of the posterior thighs above slightly blackish. Length nearly one-tenth of an inch. It resembles the ensiger very much in its markings, but the oviduct is not exserted. Great numbers are deposited together, and they ultimately spin their cocoons and envelope them with an exquisitely fine silky substance, which has been called " animal cotton." 4. M. CONGREGATA.-Black; thorax destitute of oblique, lined sutures; abdomen elongate, subfusiform. Inhabits Pennsylvania. % Body black: mandibles and palpi white: thorax destitute of oblique, lined sutures; transverse suture at the base of the scutel dilated, profound: wings hyaline; radial cellule with the nervure as obvious as the others; second cubital cellule rounded destitute of the exterior [263] nervure; apical nervures obsolete: stigma triangular, fuscous: abdomen oblong, subfusiform, more polished than the thorax; first and second joints densely punctured or minutely lineated; the first joint pedunculiform, arcuated, narrower than the second: venter along the middle pale yellowish: feet honey-yellow: posterior tibiae at tip and posterior tarsi dusky. Length over one-tenth of an inch. Resembles mellUpes, but the thorax has not the oblique, lineated grooves, and the abdomen is more elongated and slender at base. This basal segment, like that of the mellipes, has a slight tubercle on each side. In June, 1822, I obtained eighty-four individuals of this species from the larva of a Spihynx. 1835.] 714 BOSTON JOURNAL 5. M. ZONARIA.-Black: feet and band on the tergum yellowish. Inhabits Indiana. Y Body black, punctured: antennae fuscous; beneath piceous, dull; basal joint beneath honey-yellow: mouth honey-yellow: palpi white: wings hyaline: radial cellule with the nervure not strongly marked; second cubital cellule very small, perfect: abdomen not elongated; each side and band on the middle of the tergum honey-yellow: oviduct half the length of the abdomen, black: feet yellowish posterior pair of tarsi dusky. Length one-tenth of an inch. The fasciated tergum is an obvious character. 6. M. CARPATA.-Black; stigma large, brown; feet honeyyellow. Inhabits Indiana. 9 Body black: antennae beneath and mouth piceous: palpi white: thorax with the suture before the scutel not much dilated, but having the cross lines; wings hyaline; [264] nervures whitish: stigma large, triangular, light brown; nervures of the radial cellule not visible, or but slightly towards the tip; second cubital cellule destitute of the exterior nervure: tergum oval, somewhat polished; first segment punctured: oviduct nearly or quite as long as the abdomen: feet honey-yellow: wing-scale yellow. Length over one-tenth of an inch. The stigma of this insect is larger and the nervures paler than those of any other species I have seen. 7. M. BISSTIGMATA.-Stigma elongated, appearing double. Inhabits Indiana. % Body black, polished: antennae at base and mouth piceous: thorax with two oblique sutures and one at the base of the scutel: wings hyaline; nervures pale brownish; nervure of the radial cellule as distinct as the others, rectilinear, parallel with the rectilinear part of the costal edge; second cubital cellule destitute of the exterior nervure; stigma much elongated, the length being obviously more than three, times the greatest breadth, brown; a stigma-like spot at the origin of the nervures of the [Vol. I. OF NATURAL HISTORY. 715 discoidal cellule on the costal margin much smaller and distinct from the stigma: abdomen elongate, subclavate, being slender at base; feet pale honey-yellow. Length about one-tenth of an inch. The much elongated stigma and the small spot which precedes it, being larger and more separate than usual, readily distinguish this species. 8. M. CALLIPTERA.-Wings yellowish at base, bifasciate with blackish. Inhabits Indiana. Stethidium black: feet honey-yellow: wings, at base and stigma yellowish; a blackish band upon the two [265] discoidal cellules; and another blackish band across the stigma, along the descending nervure to the small second cubital and continued dilating to the anal margin, where it is almost confluent with the other band; terminal third hyaline; inferior wings blackish, yellowish on the basal third, this color extending along the costal margin. This is larger than either of the preceding species. CHELONUS Jur. 1. C. PARVUS.-Black; base of the antenna, and anterior thighs yellowish. Inhabits Indiana. Body densely punctured; antennas, first joint beneath honeyyellow: palpi whitish; thorax with dilated punctures, particularly on the disk and anteriorly: scutel and metathorax with dilated punctures; the latter truncate behind: wings hyaline: nervures blackish, pale at base: stigma large: second cubital cellule small, subtriangular: abdomen without apparent sutures, densely punctured; the punctures longitudinally confluent into wrinkles, which are more prominent at base; venter profoundly concave, excavated; cox:e black; trochanters whitish; thighs, anterior pair honey-yellow; the other pairs blackish; tibiae whitish, posterior pairs blackish at tip; tarsi whitish. Length over one-tenth of an inch. The neuration of the wings corresponds with the dentatus F., but the abdomen exhibits no more appearance of divisions than 1835.] 71.6 BOSTON JOURNAL that of sulcatus Jur., and the venter is very profoundly excavated. The metathoracic spines are very short and obtuse. 2. C. SERICEus nob., (Sigalphus Long's Ex. to [266] St. Peter's, ii. p. 321.)-Agreeably to the generic characters given by Jurine, this species as well as the following belongs to this genus, on account of the undivided abdomen; still, however, the dentatas F., which has two distinct sutures on the tergum, is also referred by some modern naturalists to this genus. 3. C. BASILARIS nob., (Sigalhus, ibid. p. 322,) much like parvtus nob., but is larger, the second joint of the antennae, mandibles and feet, except at tip, are pale yellowish. DIPLOLEPIS Geoff. Leach. (Antennae filiform, joints cylindric. Three cubital cellules.) 1. D. ARMATUS.-Black; antennae and feet ferruginous: scutel with a conic spine. Inhabits Indiana. Body black, polished; antennae ferruginous: first joint not longer than the third, black; second joint globular, black; third and following joints cylindrical, subequal; terminal joint rather longest; scutel with a prominent conic, acute spine; wings hyaline: nervures pale brownish: feet honey-yellow; venter on the inferior edge honey-yellow; thorax with two grooves; collar and first segment of the tergum with close-set raised lines. Length to tip of wings three-twentieths of an inch. The scutellar spine is very prominent, elevated and obvious, as in Figites ediogaster Panz., but the thorax is not so much sculptured as in that species. 2. D. 5-LINEATUS.-Black; feet rufous scutel with a spine. Inhabits Indiana. [267] Body black, polished; antennae, first joint rather shorter than the third; scutel rough with about five raised lines; at tip a broad, compressed, carinate, subacute spine: wings hyaline: nervures brown: pleura and first joint of the tergum with close-set raised lines: feet, excepting the inferior surface of the thighs, dull honey-yellow. Length three-twentieths of an inch. Aside from the color of the antennae and of the inferior surface [Vol. I. OF NATURAL HISTORY. 717 of the thighs, the scutel differs from that of the preceding species in being rugose, or with about five elevated lines, and its terminal spine is much broader at the base and less conic. 3. D. I.IPATIENS.-Black: feet ferruginous: scutel mutic. Inhabits Indiana. Body black, polished, obsoletely tinted with piceous: antennae piceous-blackish: mandibles ferruginous: scutel with the mar_ gin deeply depressed and rugose: the disk elevated, oval, with an acute edge, within which, on the posterior half, is an indentation and a more slight indentation before it, each side of which are two or three punctures: wings hyaline, nervures pale brown: abdomen acute at the tip of the tergum: feet ferruginous or rather piceous. Length three-twentieths of an inch. 4. D. PEDATUS.-Black: feet yellowish: antenna piceous: third joint long. Inhabits Indiana. Body polished, impunctured, black: antennae yellowish-piceous: first joint not much longer than the second: third joint much longest, equal to the fourth and fifth together, and a little arcuated: remaining joints subequal, [268] oval-cylindric: nasus with a longitudinal indentation each side before: mandibles piceous: thorax without dorsal grooves, but a simple one over the wings: wings with a very slight obscure tint: nervures brown: feet honey-yellow. Length S less than one-twelfth of an inch. Differs from the two preceding species by the elongated third joint of the antennae. 5. D. STIGMATUS.-Black: feet yellowish: wings with a large stigma. Inhabits Indiana. Body polished, black: antennae piceous: basal joint yellowish: second joint closely'united to the first, shortest, almost spherical: second and third joints subequal: wings hyaline, nervures yellowish: stigma large, triangular: abdomen dull rufous: feet pale honey-yellow. Length about one-twentieth of an inch. 1835.] 718 BOSTON JOURNAL FIGITES Latr. (Anteunne mloniliform, thicker towards their extremities. Second cubital cellule wanting.) 1. F. IMPATIENS.-Black: mandibles and feet piceous. Inhabits Indiana. 9 Body polished black: antennae piceous-black, two-thirds the length of the body, with scattered hairs: beyond the sixth joint moniliform: terminal joint ovate conic: mandibles piceous: area of the stemniata a little elevated: behind which, on the occiput, are oblique impressed lines: scutel with the margin depressed and rugose, the disk oval, the edge obscurely piceous, with an indentation behind, within the edge: wings hyaline: nervures yellowish: feet piceous. Length three-twentieths of an inch. [269] I am by no means satisfied with the only essential characters I can find of the genera Diplolepis and Figites. The present species closely resembles the Diplolepis impatiens nob. The scutel has an indentation as in scutellaris Latr., and some other species. 2. F. MELLIPES.-Black j feet honey-yellow; wings ciliate. Inhabits Indiana. 9 Body black, polished: mouth piceous: antennae a little hairy, piceous: wings hairy and ciliate; more particularly ciliate at tip; nervures piceous: feet honey-yellow, somewhat paler at base and including the coxae. Length one-twenty-fifth of an inch. LEUCOSPIS Fabr. L. FRATERNA y.-Black, varied with yellow; oviduct longer than the abdomen. Inhabits Indiana. Body black, densely punctured: head with an obscure silvery reflection before and on the front in the cavity of the antennae bright green: vertex varied with obscure violet and greenish: antenna, basal joint yellow anteriorly: collar margined each side and behind with yellow and with a yellow transverse abbreviated line on the anterior middle: thorax with an abbreviated line over the wings and a transverse one on the scutel yellow: wings [Vol. I. OF NATURAL HISTORY. 719 somewhat fuliginous: pleura with an oblique, yellow line over the posterior feet: tergum, first segment with a dull ferruginousyellow band at base and a subterminal yellow one; on the middle of the tergum on each side a transverse yellow spot; a yellow band on the posterior submargin of the penultimate segment; and a double [270] yellow spot at tip of the ultimate segment: oviduct longer than the abdomen, reaching almost to the scutel: tarsi and anterior tibiae ferruginous, the latter dusky on the middle: intermediate tibiae and knees yellow, tinted with ferruginous behind: posterior thighs dentated beneath, yellow at base and tip; tibiae yellow before, somewhat ferruginous behind. Length seven-twentieths of an inch. S Tergum on each side anterior to the middle, a slightly carinated line; lateral yellow spot on the middle none; a yellow band on the middle or a little posterior to the middle, and towards the tip another yellow band; on the posterior declivity is an abbreviated longitudinal yellow line or spot; sides with a yellow spot or line interrupted from the extremities of the two posterior bands; of the two spots the anterior one is sometimes wanting, and in some specimens is a lateral yellow joint near the tip. Length three-tenths of an inch. Closely resembles affinis nob., in color and markings, but besides other differences the present species is larger and more robust, and the oviduct is longer than the abdomen. A female specimen was sent me by Dr. Harris, and I obtained several males and one female in this State. Dr. Harris's specimen varies in having only a rudiment of the yellow spot of the middle of the tergum. I have obtained them chiefly on the blossoms of the parsnip. CHALCIS Fabr. Latr. 1. C. AM(ENA.-Yellow, variegated with black. Inhabits Indiana. [271] Body with large, close-set punctures: yellow, slightly tinged with green; occiput and antennae, excepting the basal joint beneath, black: thorax quadrilinear with black, the intermediate lines confluent at the middle, and all united by a transverse line 1835.] 720 BOSTON JOURNAL behind and by a slender transverse line at the suture of the first segment, on which the lines do not extend: scutel with a longitudinal black line: metathorax, excepting at base, black: abdomen, petiole black, about one-third as long as the abdomen: tergum moderately arcuated; each segment having a black band: pleura black, about four yellow spots: posterior pair of feet with their coxse at tip, maculated band, inferior edge and tip of the dilated thighs, tip and base of the tibiae, black; the thighs are about the size of the abdomen, with six or eight large prominent black spines, the superior one divided into three or four. Length less than one-fifth of an inch. A very handsome species; I obtained it from the pupa of a Thecla. 2. C. DEBILIS.-Dull honey-yellow; anterior pair of feet whitish. Inhabits Indiana. Front yellowish towards the mouth; a black line from the antennae to the vertex: antennae dusky, paler beneath: thorax punctured, with three black vittae scutel with a black line: beneath the petiole are two whitish spines: petiole as long as the posterior coxme, blackish, whitish at the tips: abdomen polished, the incisures blackish; thighs nearly equal to the abdomen; tibiae whitish, blackish in the middle; tarsi white. Length three-twentieths of an inch. [272] EURYTOMA Illig. Latr. 1. E. ORBICULATA.-Blackish; feet, excepting the middle of the thighs, yellowish. Inhabits Indiana. Body brassy-black, reticulate with punctures: antennae, first joint honey-yellow: scutel obtusely rounded at tip: suture at its base not dilated: wings hyaline; nervures brown, branch of the radial nervure not longer than the part that extends beyond it on the edge: abdomen in profile almost orbicular, glabrous, polished; petiole punctured, longer than the posterior coxae and trochanters: feet honey-yellow: thighs, excepting at their origin and extremity, black. Length less than one-tenth of an inch. The joint of the antennae are unequally gibbous. [Vol. I. OF NATURAL HISTORY. 721 2. E STUDIOSA.-Black; terminal joint of the antennae as long as the two preceding ones together. Inhabits Indiana. y Body reticulate with crowded punctures: antennae moniliform, of eight joints, geniculate; second joint shortest; third joint hardly longer than the fourth, and gradually a little shorter to the penultimate; ultimate joint about as long as the two preceding ones together, conic-ovate, with a very slight appearance of being three-jointed: thorax, anterior segment in breadth at least equal to twice the length; suture at the scutel not dilated: scutel obtusely rounded behind: wings hyaline; nervure much arcuated from the edge, its confluence with the edge about as long as the branch, which is subclavate: abdomen polished, impunctured; above oval; laterally orbicular; peduncle shorter than the posterior coxae and trochanters: knees and tips of the tibiae honey-yellow: [273] tarsi, particularly the two posterior pairs, whitish. Length less than one-tenth of an inch. EULOPHUS Geoff. Latr. 1. E. DICLADUS.-Blackish metallic; tibiae and tarsi white. Inhabits Indiana. Body brassy blackish, more or less tinged with cupreous, punctured: antennae larger towards the tip; terminal joint larger than the preceding one, conic-compressed; two long, slender branches, originating near the base, and nearly as long as the antennae; tergum tinged each side with green: feet blackish: tibia and tarsi white. Length nearly one-twentieth of an inch. The terminal joint of the antennae in the female is considerably larger than the others. 2. E. BASALIS. —Greenish; feet, tip and base of the antennae white. Inhabits Indiana. 9Body granulated, brassy-green, with a slight violaceous reflection: antennae yellow-white, third, fourth and fifth joints dusky: abdomen blackish-violaceous, basal disk whitish, and a small whitish spot at tip: feet white, including the anterior 1835.] 46 722 BOSTON JOURNAL coxse: coxse with a small, acute tubercle before: tarsi, terminal joint dusky. Length about one-fifteenth of an inch. I observed a number of the pupae of this insect, congregated together on the under side of a leaf of the buttonwood (Platanus cccidentalis L.) They were of a blackish color, and adhered to the leaf in a vertical [274] posture, by the extremity of the abdomen. Came out last June. This is much like E. damicornis Kirby, which, however, has a shade in the middle of the wings; antennae not shaded in the middle, and the posterior thighs of the female are dusky in the middle. I have five females, but not one male. The last joint of the antennae is evidently divided into three segments. 3. E. HIRCINUS.-Black, with sparse, long hairs; feet and base of the tergum yellowish. Inhabits Indiana. Body black: antenne yellowish terminal joints dusky: mouth yellowish: thorax, head'and wings at base, with long sparse hairs: wing-scale honey-yellow: tergum on the basal disk yellowish: feet, including the coxse, pale yellow: venter on the disk yellowish. Length over one-twentieth of an inch. Quite distinct from the preceding by the long hairs of the head and thorax. PERILAMPUS Latr. P. PLATIGASTER.-Blackishj face impunctured. Inhabits Indiana. Body brassy-blackish, punctured: head polished, impunctured before: occiput somewhat lineated transversely; before the eyes a little punctured: thorax with a glabrous, polished line each side: scutel short, obtuse, rounded, slightly emarginate at tip: wings hyaline; nervures brown; tergum quadrate, angulated each side, simply arcuated above, shining blackish: feet blackish, with a tinge of green: tarsi yellowish. [275] Length about three-twentieths of an inch. Differs from P. hyalinus nob. by color; and in that species the [Vol. I. OF NATURAL HISTORY. 723 face is very obviously punctured, the scutel is larger and more acutely emarginated, and the abdomen is elevated above, into an acute, transverse ridge. TORYMUS Dalm. (MISOCAMPUS Klug.) 1. T. OCREATUS.-Green, tinged with blue; base of the antennae, tibiae and tarsi whitish. Inhabits Indiana. Body bright green, more or less tinged on the pleura, abdomen and thighs with blue or purplish; reticulately punctured: antennae black; first joint before dull whitish: mandibles and palpi piceous: scutel, on the posterior half with very small punctures: wings hyaline; nervure brown: abdomen polished, impunctured: terminal joint 9 brassy: oviduct as long as the body, fuscous: tibiae and tarsi whitish. Length one-tenth of an inch. Resembles bedeguaris F., but is smaller, the abdomen and thighs differently colored, and the minute puncturation of the posterior half of the scutel strongly contrasts with the larger discoidal punctures of the basal half. It inhabits the receptacle of a Liatris. The male has generally more of the purple tinge. 2. T. PAVIDUS.-Cupreous green; no large punctures; tibiae and tarsi yellowish. Inhabits Indiana. Body coppery-greenish, with the appearance of minute granules or scales; antennae black: hypostoma with the carinate line very distinct: mandibles piceous: wings hyaline; nervure pale brownish: abdomen bluish-green: [276] feet honey-yellow: thighs bluish-green; posterior pair of tarsi whitish. Length % nearly one-tenth of an inch. The surface has no large and obvious punctures like those which distinguish the preceding. SPARASION Latr. S. FAMELICUS.-Slender; abdomen longitudinally lineated. Inhabits Indiana. Body much elongated, very slender; with small punctures; 1835.] 724 BOSTON JOURNAL black; antenna, six basal joints dull yellowish, remaining joints close set: second and third joints equal: mandibles piceous: thorax with the anterior segment arcuated each side.to the wings; two distant, dorsal, longitudinal impressed lines: wings hyaline; nervure not distant from the edge, branch, divaricating from the edge, not dilated at its tip: metathorax with longitudinal, elevated lines: abdomen elongated, with numerous, longitunal, parallel, elevated lines, both on the tergum and venter: feet honey-yellow. Length over three-twentieths of an inch. CERAPHRON Jur. Latr. 1. C. ARMATUS.-Wings fuliginous in the middle; tergum striate at base. Inhabits Indiana. Body black, with rather distant punctures: thorax with three longitudinal lines before, approaching behind: wings fuliginous in the middle; nervure, carpal spot and branch robust, fuscous; the carpal spot or stigma rather [277] large and truncated: scutel with two small spines at tip: metathorax with a small spine or tubercle each side: tergum depressed, with numerous close set engraved lines extending to the middle of the length: feet piceous; thighs blackish. Length more than one-tenth of an inch. A very distinct species. 2. C. STIGMATUS.-Lateral margin of the tergum extending beyond the abdomen. Inhabits Indiana. Body black, minutely punctured: antennae, first joint equal to the four following joints taken together: thorax, anterior segment with the three impressed lines distinct: wings hyaline; stigma large, semi-orbicular, brown; nervure of the incomplete radial cellule robust, brown, hardly longer than the stigma; ter-,um polished, slightly lineated at base; the segments extending each side beyond those of the venter.: anterior and intermediate tibiae and tarsi piceous. Length over one-twentieth of an inch. These two species belong to the second division of Jurine's Ceraphron.. [Vol. I. OF NATURAL HISTORY. 725 PROCTOTRUPES Latr. 1. P. OBSOLETUS.-Black; feet and antennae honey-yellow. Inhabits Indiana. Body polished, black: antennae honey-yellow, simple, palpi white: thorax with a yellowish wing-scale: wings hyaline; nervure from the radial cellule continued to the middle of the wing; discoidal and anal nervures hardly distinct: feet honey-yellow: oviduct about as [378] long as the first joint of the posterior tarsi, gradually attenuating from the abdomen to the tip, and continuing the curve of the tergum downward. Length to the tip of the oviduct nearly one-fifth of an inch. 2. P. ABRUPTUS.-Black; feet and first joints of the antennae honey-yellow. Inhabits Indiana. Body polished, black: antennae rather short, with close set, short, obvious hairs; two or three basal joints very obscurely honey-yellow or piceous; joints beyond the middle not twice the length of their breadth: mouth obscurely piceous: wings hyaline; nervure of the radial cellule not extended toward the middle of the wing; discoidal and anal nervures not obvious; wing-scale dull yellowish: feet honey-yellow: oviduct curved rapidly downward, almost deflected, not gradually attenuated, but somewhat cylindric at base, and hardly longer than the basal joint of the posterior tarsi. Length one-tenth of an inch. 3. P. PALLIDUS nob. Contrib. Macl. Lyc. vol. i. p. 80. This species is remarkable in having but a very short, bifid process extending from the tip of the abdomen. The sexes are not well understood. Jurine says that the antennae have the same number of joints, and that the pointed valves which terminate the abdomen are nearly alike in both sexes. But the present insect leads me to suppose that the male has not been hitherto known. At the extremity of its abdomen are two very short, parallel filiform processes, which are probably characteristic of the male sex in this genus. It seems, therefore, possible that the palidus may prove to be of the same species as [ 279 ] 1835.] 726 BOSTON JOURNAL P. caudatus nob., notwithstanding their great apparent difference. But this cannot be determined without more specimens, and a better acquaintance with them both. Since the above was written, I have obtained many specimens of this species, all corresponding in apparent sexual character, excepting that in some the second joint of the antennae is so far immersed in the first, as to be hardly visible; still as it is not, in any, much exserted, this character is probably dependent on the greater or less degree of contraction in drying. CINETUS Jur. C. MELLIPES.-Black; feet honey-yellow. Inhabits Indiana. Body polished, black, hairy: antennae fuscous; basal joint honey-yellow; vertex tinged with piceous: mouth obscure honeyyellow: thorax with two impressed lines: wings immaculate, ciliate; nervures of the radial cellule extended a little towards the base and centre of the wing; the two anal nervures very distinct; stigma not obvious: abdomen, peduncle with longitudinal, impressed lines; second segment very large, composing the chief part of the abdomen: feet honey-yellow. Length one-tenth of an inch. BETHYLUS Latr. 1. B. CELLULARIS.-Black; antennae, tarsi and anterior tibiae piceous. Inhabits Indiana. Body black: head with a raised line passing between the antennas before: antennae piceous: wings with a very [280] slight tinge of fuliginous; nervures yellowish; stigma double, fuscous; a small, additional, triangular cellule at the tip of the brachial cellules; abdomen polished: feet black; tarsi and anterior pair of tibiae and tarsi piceous. Length about one-tenth of an inch. This species is remarkable by the supernumerary cellule. 2. B. MUSCULUS.-Black; antennae and feet yellowish; abdomen depressed. Inhabits Indiana. [Vol. I. OF NATURAL HISTORY. 727 Body somewhat polished, impunctured, black: antenna dusky, honey-yellow towards the base: mandibles honey-yellow; thorax with the anterior segment not much elongated; dorsal impressed lines very obvious: wings hyaline; radial nervure extended, equally distinctly near to the tip of the wing; discoidal cellule none: metathorax minutely and densely punctured or granulated above, and minutely lineated each side: abdomen depressed, polished, piceous black, distinctly petiolated: feet honey-yellow: thighs a little dusky in the middle. Length over one-twentieth of an inch. This is the smallest species I have met with. 3. B. PEDATUS.-Black; antenna and feet honey-yellow. Inhabits Indiana. Body black, with scattered hairs: antennae, particularly at base, obscurely honey-yellow; first joint long: thorax minutely punctured: metathorax punctured and lineated: tergum polished: feet dull honey-yellow. Length over one-tenth of an inch. This species and the following are remarkable for the brevity of the inflected tip of the radial nervure, which is not at all arcuated, but points obliquely inward. [281] 4. B. CENTRATUS.-Black; tarsi and tip of the tibiae obscure piceous. Inhabits Indiana. Body black, polished, with scattered hairs: antennae with an obsolete piceous tint, excepting the basal joint: metathorax with discoidal punctures and lineations: wings hyaline; two brachial cellules; a simple, short, oblique rectilinear inflection of the tip of the radial nervure pointing towards the centre of the wing nervures pale: tergum polished: tibiae and tarsi obscure piceous; the latter blackish at tip. Length less than three-twentieths of an inch. This species is considerably larger than the preceding and differs in the color of the antennae and of the feet. COPTERA nob. Artificial character.-Wings without nervures; superior wings folded and with a fissure at tip; abdomen of two segments. 1835.] 728 BOSTON JOURNAL Natural character.-Body moderately slender: head longitudinally oblong, truncate or a little excavated before, over the insertion of the antennae; eyes lateral, rounded, entire: stemmata three: antennae submoniliform, gradually enlarging a little towards the tip; basal joint longest and dilated: wings without obvious nervures; superior wings large, folded longitudinally in two, and at the tip of the fold with a profound fissure; inferior wings rather slender: abdomen composed of but two segments, of which the basal one is somewhat petioliform: feet moderate. [282] Observations.-This new genus differs from all others with which I am acquainted, that have nerveless wings, by having the superior wings doubled, by an equal fold, and at their tips a deep and obvious fissure. I have, as yet, seen only the male. C. POLITA.-Black; feet honey-yellow. Inhabits Indiana. Body polished, black: head anteriorly rugose and biangulated: antennae at base, excepting the first joint, piceous: thorax with two impressed lines: wings with short hairs and ciliate: abdomen oblong-oval, basal segment with elevated lines. Length about one-twelfth of an inch. Taken on the window, July 20. PSILUS Jur. 1. P. TERMINATUS.-Black; feet and base of the antenna honey-yellow. Inhabits Indiana. Body black, polished, with a few, rather long, scattered hairs: antennae thirteen-jointed, elongated, geniculate between the second and third joints, honey-yellow; first joint in a frontal groove; second joint elongated, subfusiform, third joint cyathiform; remaining joints moniliform, equal to the eleventh joint, which is abruptly dilated and with the twelfth equal, subquadrate, black; thirteenth joint subequal to the preceding, globose-ovate, black: wings with short eiliae, and with short hairs; [283] nervures none; stigma triangular, black; abdomen dull honey-yellow at base; first segment half as long as the thorax: feet honey-yellow. Length over one-twentieth of an inch. [Vol. I. OF NATURAL HISTORY. 729 Although the wings entitle this species to a place in Jurine's Psilus, yet the antennae are entirely different from those of the type P. elegans, resembling considerably those of his P. antennatus. 2. P. ABDOMINALIS.-Antennae clavate, as long as the body; black, abdomen whitish. Inhabits Indiana. Body black: antennas broken at the second joint; first joint one-fourth the whole length, whitish: second joint obconic: terminal joint ovate-fusiform, longer than the three preceding joints together; wings very deeply ciliated: abdomen whitish, particularly at base: tarsi whitish. Length about one-fourth of an inch. 3. P. APICALIS.-Antennae at the tip of the head, which is a little prominent. Inhabits Indiana. Body black, polished; antennae as long as the body, fuscous, with subquadrately moniliform joints; basal long joint honeyyellow; terminal joint not much longer than the preceding one; inserted at the tip of the head; beneath the antennae is a rather broad prominence: costal nervure but little less than half the length of the wing, triangular and black at its tip; feet honeyyellow: petiole distinct. Length one twenty-fifth of an inch. It is probable that the present insect is related to the P. cornutus of Panzer, but I have not the means of comparing. [284] 4. P. COLON.-Wings with a dusky dot before the middle. Inhabits Indiana. Body black, polished; antennae nearly as long as the body; terminal joint as long as the first and equal to the four preceding, joints together: wings hyaline; an oval, dusky spot a little beyond the tip of the costal nervure and extending nearly across the win: costal nervure with its terminal half more dilated than the basal portion and blackish; tarsi and anterior pair of tibie honey-yellow. Length one twenty-fifth of an inch. Readily distinguished by the dusky wing-spot. 1835.] 730 BOSTON JOURNAL ANTEON Jur. A. TIBIALIS.-Black; tibiae and tarsi dull yellowish. Inhabits Indiana. Body polished, black; metathorax punctured and with longitudinal slightly elevated lines; tergum towards the tip with a few, rather long black hairs; tibiae and tarsi dull yellowishwhite. Length about one-tenth of an inch. HEDYCHRUM Latr. 1. H. OBSOLETUM. — Thorax on the disk very slightly punctured; abdomen entire at tip. Inhabits Indiana. Body green, varied with purplish; thorax on the disk tinged with purple, and with sparse, slightly impressed punctures; wings fuliginous; metathorax and pleura with discoidal punctures, and a confluent blackish, double, indented [285] spot behind; tergum with a purple reflection, less obvious on the posterior segment; punctures slightly impressed, more obvious each side and on the terminal segment; terminal segment about equal to the preceding, perfectly entire at tip: venter bronze: tarsi brown. Length less than one-fourth of an inch. Differs from ventrale nob., which has the terminal segment slightly longer than the preceding one and very obtusely and slightly emarginate at tip, and the thoracic punctures are not sparse on the disk; the sinuosum nob. has a deep and acute emargination at tip of the terminal segment of the tergum. 2. H. SPECULUM.- S Green; tergum and disk of the thorax impunctured. Inhabits Indiana. Body green, varied with purplish: antenna, excepting the first and second joints, blackish: head with discoidal punctures, vertex and posterior margin impunctured: thorax impunctured, polished, with an impressed, abbreviated line each side of the middle: metathorax with discoidal punctures: wings fuliginous: tergum impunctured, polished; terminal segment hardly half as [Vol. L, OF NATURAL HISTORY. 731 long as the preceding one, obsoeltely punctured each side, at tip obtusely emarginate: tarsi pale honey-yellow: venter brassy. Length less than three-twentieths of an inch. The smallest species I have yet met with in this country. PYRIA Lepel. & Serv. P. TRIDENS L. & P.-Encyc. Meth. Chrysis carinata nob. Contrib. Macl. Lye. p. 82. [286] FORMICA L. A. First cubital cellule without recurrent nervure. 1. F. MELLEA.-Honey-yellow; scale truncate. Inhabits Louisiana. % Body entirely honey-yellow; eyes rather prominent, black, short oval: wings very slightly tinged with yellow; nervurcs yellow: scale robust, broad, truncate, and having a slight tubercle each side before, less than half the height of the abdomen, and not higher than the length of its base. Length nine-twentieths of an inch. Sent to me by Mr. Barabino. The small discoidal cellule, so distinct in the wing of F. rufa F., does not exist in this species. 2. F. LAUTA. —9 Body piceous, more or less varied with black; the piceous color prevails chiefly on the stethidium and mouth: mandibles with larger and regular punctures; between the antennae a slender, impressed line: thorax with generally a black line each side: scutel darker than the thorax: wings with yellowish nervures: no recurrent nervure: inferior nervure of the cubital cellule arising from the middle of the tip of the brachial cellule; the terminal line of this latter cellule is nearly rectilinear and transverse; anal nervure rectilinear at base, angularly undulated and slightly communicating with the tip of the axillary nervure: abdomen black; first segment often piceous: feet honey-yellow: tibia and tarsi darker. Length over three-tenths of an inch. % Entirely black, excepting the wings, which are like those of the female: the thorax has a distinct, longitudinal impressed line before, which sometimes exists in the female, but less distinct. [287] 1835.] 732 BOSTON JOURNAL Length over one-fifth of an inch. Inhabits Indiana. Common. 3. F. IMPARIS. — Body light honey-yellow, impunctured: head small: eyes oval, black: mandibles, teeth black: wings very slightly tinged with fuliginous; no recurrent nervure; terminal line of the brachial cellule angulated, the anal half being oblique; anal nervure robust to its tip, arcuated from its origin, scarcely undulated, not communicating with the axillary nervure: scale emarginate at tip, often deeply and acutely: tergum, disks of the incisures a little deeper colored. Length nearly three-tenths of an inch. Z Very small in comparison with the female; black; mouth piceous: feet dull honey-yellow; thighs, excepting the knees, black. Length less than three-twentieths of an inch. This species is common in Indiana. The great disparity in color and magnitude between the male and female, would deceive, as to their specific identity. They appeared in great numbers on the 2d of April; the males swarmed around small bushes, alighting on the branches and leaves. The females were but few. B. First cubital cellule with a recurrent nervure. 4. F. SESSILIS.-Peduncle concealed by the abdomen. Inhabits Indiana Body blackish: mouth dull honey-yellow: antennae rather long: thorax with the three segments very distinctly marked: peduncle composed of a simple, oblong body; destitute of a scale, unless it be depressed and united to the surface of the peduncle, concealed by the first segment of the abdomen: abdomen projecting over the peduncle, and having a deep and well defined groove beneath the first segment for its reception: feet, exceptin, [288] at base, dull honey-yellow: wings with the discoidal cellule, small, quadrate; first cubital cellule not broader than the radial, and bounded by a right line; nervure of the second cubital cellule obsolete. Length 9 three-twentieths of an inch: nearer about one-tenth of an inch. The projection of the superior part of the basal segment of [Vol. I. OF NATURAL HISTORY. 733 the neuter abdomen is more remarkable than that of the female. It probably belongs to the genus Polyergus. A variety is much paler, even honey-yellow. 5. F. TRIANGULARIs.-Discoidal cellule subtriangular; blackish-piceous. Inhabits Indiana. Body blackish-piceous or obscure reddish-brown: hypostoma convex and somewhat carinate: mandibles piceous: wings whitish; nervures pale; discoidal cellule subtriangular, the superior angle being very obtuse; first and second cubital cellules not separated by a petiole; anal nervure abruptly angulated on the anal submargin: scale rather thin, elevated: tarsi honey-yellow.' Body darker. Length y over one-tenth of an inch; % about the same. Var. c. Recurrent nervure none. Var. A. Recurrent nervure obsolete or incomplete. Resembles sessilis nob., but the scale is obvious; the discoidal cell is more'triangular and the nervure of the second cubital is obvious. 6. F. DISLOCATA.-Yellowish; anal nervure almost dislocated at the anal emargination. Inhabits Indiana. Head black: hypostoma distinctly carinated: front [289] with an acute, longitudinal; elevated line over the insertion of each antennae and a slightly impressed line in the middle: antennae and mandibles piceous: thorax honey-yellow, dusky before: wings tinged with fuliginous; nervures dusky and very distinct; recurrent nervure forming a quadrate cellule less than half the size of the first cubital; anal nervure abruptly angulated near the anal emargination of the edge, and almost dislocated in that part, the terminal portion being arcuated at each extremity: scale thick, prominent, obtuse, entire: abdomen blackish, with prostrate hairs, and sparse elevated ones and regular ciliae on the edges of the segments; first segment honey-yellowish at base, without any indentation opposite the scale: feet honey-yellow. % Trunk and scale entirely pale honey-yellowish: scapus of 1835.] ,34 BOSTON JOURNAL the antennae, hypostoma and mouth pale yellowish: abdomen socmewhat piceous. Length three-tenths, S less than two-fifths of an inch. Not uncommon in the forest, running rapidly upon the branches iad leaves of bushes. 7. F. sBnsERICEA.-Black, minutely sericeous; abdomen impunctured. Inhabits Indiana. Body impunctured, black, very minutely sericeous: thorax with an impressed line before: wings dusky; discoidal cellule about half as large as the first cubital, a little narrower before: scale obtuse, or widely rounded at tip, somewhat truncate. Length S less than two-fifths, i over two-fifths of an inch. My specimen of the female has the legs entirely black: and of two males one has the legs honey-yellow, with the exception only of the base of the coxse; and the other [290] also with lhoney-yellow legs has the coxar, trochanters and even the base of the thighs black. It is one of the large species dalled " wood antls." ATTA. A. FERVENS Drury, vol. iii. p. 58, pl. 42, f. 3.-1 obtained a female of this species in Mexico, and on comparison with an individual of the cephalotes sent me by Dr. Klug, I find it to be a closely allied species. The color of the wings and their neuration are the same; but the body is more hairy or downy, and its brown color is not so deep, (the color is much too black in my copy of Drury, agreeing better with the cephalotes, than with Drury's description.) The head is not so large, so deeply indented above, nor so acute at the posterior angles. The impressed, longitudinal line on the anterior part of the thorax, so distinct in cephalotes is not, or is scarcely visible infervens. Judging from these two specimens, I am convinced that the fervens ought to be admitted into the modern books as a distinct species. MYRMICA Latr. Klug. 1. M. LINEOLATA.- y Black, more or less varied with piceous: antennae subclavate at tip clothed with dense, short, whitish hairs: front with a longitudinal impressed line, termi[Vol. I. OF NATURAL HISTORY. 735 nating before in a small triangular impression between the antennae; the whole head, excepting the vertex, occiput and antennae, striate with close-set very small lines, which are rather longer on the mandibles: wings hyaline; nervures yellowish-brown; small cubital cellule none: anterior segment of the petiole deeply striate [291] longitudinally each side, decidedly longer than the second which is subemarginate above: abdomen oval, truncate, submarginate at base: pleura, striate like the head behind. Length over three-tenths of an inch. S Much more slender; transverse incisure between the wings more obvious; segments of the petiole not so deeply divided. Length over three-twentieths of an inch. Neuter. Piceous, varying to black; abdomen cordate, almost always black. Length under three-twentieths of an inch. This species is very common in various parts of the United States, even in houses, and may be observed, by every one, going in procession. The radial cellule is slender and elongated, the including nervures being nearly parallel; the inner nervures does not quite attain the edge. The first cubital cellule is hardly larger than the discoidal cellule, the recurrent nervure of which enters the first cubital at the middle. Second cubital extending to the tip of the wing. 2. M. CORRUGATA.-Honey-yellow wings with three complete cubital cellules. Inhabits Indiana. $ Body dark honey-yellow, almost piceous: antennae whitish; first joint not longer than the second and third together; second joint rounded, thickest: metathorax with two obtuse tubercles instead of spines: wings hyaline; nervures and stigma pale yellowish; second cubital cellule complete, nearly as long as the first cubital and petiolated from the apical angle of the discoidal cellule, which is oblong subquadrate; the descending nervure from the stigma enters the second cubital: abdomen, first [292] joint somewhat gibbous at tip; second segment rounded: feet whitish. Length over three-twentieths of an inch. Somewhat darker than the male; metathoracic tubercles 1835.] 736 BOSTON JOURNAL spiniform; first abdominal segment almost emargipate at the superior tip; second segment short and wide; first joint of the antennae long; head anteriorly with numerous, approximate, impressed lines. Length one-fifth of an inch. Appeared on the wing, July 19th. 3. M. OPPOSITA. % Body black, minutely and densely granulated: antennae dusky; pale yellowish towards the tip; first joint slightly longer than the second and third together; second joint obtusely obconic: hypostoma convex: mandibles piceous: thorax with a glabrous line extending to the middle: wings dusky: second cubital cellule turbinate, petiolated from the angle of the discoidal cellule, its longitudinal nervures equally curved; nervure separating the second and third cellules in a direct line with the nervure from the stigma; discoidal cellule quadrate; metathorax, spines short, acute: abdomen polished, not obviously granulated; second node with an impressed line above, dividing the surface into three slight lobes: venter and feet tinged with piceous. Length over three-twentieths of an inch. Neuter. Dull honey-yellow: head minutely lineated: antennae, first joint long: stethidium rather largely granulated; spines prominent, acute, reaching nearly to the tip of the first node: abdomen glabrous, polished; second node without impressed line. Length less than one-fifth of an inch. 4. M. INFLECTA.-Black: wings dusky; discoidal cellule oblong. [293] Inhabits Indiana. S Body a little hairy, lineated with impressed lines, which are more distinct on the metathorax, black, slightly tinged with piceous: antennae with a piceous tinge; first joint not longer than the three following ones together: wings dusky; discoidal nearly as long again as broad; second cubital sessile, the separating nervure from the first cubital rather abruptly inflected towards the base, and nearer the base almost obsolete, the other including nervure rectilinear; separating nervures between the first cubital [Vol. I. OF NATURAL HISTORY. 737 and radial, and the second and third cubitals, forming a broken or slightly dislocated line, the former almost entering the third cubital: metathorax without lineations on the posterior declivity, the spines distinct: abdomen polished, without lines; petiolar segments or nodes very distinct, subequal, the posterior one rather larger and spherical: feet more obviously tinged with piceouS at base. Length less than one-fifth of an inch. The connexion between the radial and second cubital is very slightly petiolated, and the separating nervure between the first and second cubitals, is almost or quite angulated, and is less distinct towards its junction with the discoidal cellule. 5. M. DIMIDIATA.-Body pale yellowish: thorax somewhat tinged with piceous: wings with a very slight tinge of yellowish; discoidal cellule in length nearly twice its breadth; feet filiform; separating nervure between the first and second cubital cellules abruptly ending at the middle of the usual length, being entirely wanting on the basal half. Length over one-fifth of an inch. 6. M. MOLESTA. — Body pale honey-yellow, immaculate: antennae with the two ultimate joints much larger [ 294 ] than the others; the terminal one as large again as the penultimate one: wings whitish; smaller cubital cellule none; discoidal cellule very small, less than half as large as the first cubital; first cubital receiving the recurrent nervure near its base; nervure of the radial cellule terminating abruptly before the tip: the two other apical nervures feebly traced towards the tip and not reaching the tip; metathorax unarmed. Length less than three-twentieths of an inch. This is called the " little yellow ant," and is frequently found in houses in great numbers. They sometimes eat vegetable food, and some of my garden seeds have severely suffered from their attacks. They also devour grease, olive oil, &c. Their sting is like the puncture of a very fine needle. I placed a piece of meat on a window board frequented by these little depredators; it was soon absolutely covered by them, and thus enabled me to destroy thousands, every few hours that I returned to examine 1835.] 47 738 BOSTON JOURNAL the bait, for several days, during which time their apparent numbers scarcely diminished. 7. M. MINUTA.-Pale yellowish; destitute of spines on the metathorax. Inhabits Indiana. Body whitish-yellow: head rather large: antennae, terminal joint three times as large as the preceding one: eyes small, black, and placed low down: peduncle rather long: abdomen oval: very pale honey-yellow. Length (neuter) less than three-fifths of an inch. [Is it not the same as the molesta? —ED.] This may possibly prove to be an Atta. I obtained only a single specimen, which was found entangled in the nails and tarsi of a specimen of Gorytes phaleratus nob., in my cabinet. It does not appear to have a spine on any part, but there are a few scattered hairs. [ 295] * MUTILLA Linn. * Eyes enarginate. 1. M. CONTRACTA.-Black; above ferruginous; wings blackish. Inhabits Arkansaw and Missouri. Body entirely black beneath, inclusive of the feet: above ferruginous-yellowish: head black below the line of the eyes: metathorax, petiole, anterior and lateral declivities of the abdomen black.' Anterior half of the first segment of the tergum black: wings blackish-fuliginous, somewhat paler in the middle; second cubital cellule wide beneath and contracted but not angulated at the radial cellule; third cubital cellule so much contracted at base that its extreme nervure is opposite to and joins the recurrent nervure. Length about half an inch. The neuration of the wings somewhat resembles that of the maura F. and is nearly the same as that of the erythrina Klug, of Mexico. I obtained several specimens from Missouri, and Mr. Nuttall gave me one from Arkansaw. 2. M. HEXAGONA. — Black; abdomen honey-yellow. Inhabits Indiana and Missouri. [Vol. I. OF NATURAL HISTORY. 739 Body black, much punctured, and with a slight reflection of silvery hairs, particularly on the head, on the anterior segment of the thorax and on the metathorax: thorax with four slight, impressed lines, and numerous confluent punctures: metathorax reticulate with punctures, and with a slight groove from the base nearly to the middle: wings dark purplish-fuliginous; radial cellule rounded at tip, not truncate; third cubital cellule [296] rounded hexangular, with abbreviated nervures from the two outer angles; a white line passes through the cubital cellules, and a white spot is in the outer discoidal cellule: abdomen rufous or bright honey-yellow; first or petiole segment black: feet silvery hairy. Length from half an inch to nearly seven-tenths. The neuration of the wings is much like that of the Ml. italica F., even to the white line and small spot; but the third cubital cellule is still more regularly hexagonal and the radial cellule is not truncate at tip like those of the italica and melanura Klug, and many other species. 3. M. VIGILANS.-% Black; large abdominal segment, excepting its anterior and posterior margins, rufous. Inhabits Pennsylvania. Body black; with large, dense punctures: thorax with three, somewhat elevated lines and a slight appearance of another each side: wing-scale convex, lineate on the margin; the outer and hinder margins lineated with minute, elevated, parallel lines: wings purplish-black; radial cellule truncate at tip; first cubital cellule bisected by a white line; second cubital gradually and regularly narrowed to the base, with an abbreviated white line at tip; third cubital hexagonal, not contracted, the two exterior angles with abbreviated nervures; exterior discoidal cellule with a white dot: metathorax discoidally punctured; dorsal groove extending beyond the middle; large basal segment of the abdomen with large remote punctures, smaller and closer on the sides, bright rufous, its basal and terminal margins black. Length over three-fifths of an inch. Resembles M. italica F., but differs in greater depth of color in the lineations of the wing-scale, greater length [297] of the 1835.] 740 BOSTON JOURNAL inetathoracic groove and the larger and distant puncturing of the larger segment of the tergum. It is also larger. * * Eyes entire or the emargination obsolete. EPHUTA. 4. M. ERYTHRINA Klug.-Scarlet-red, beneath black; wings blackish. Inhabits Mexico. Body with dense, bright scarlet-red hairs above; beneath black; antenna and inferior part of the head black: wings black-violaceous; radial cellule truncate at tip; third cubital cellule pentagonal, contracted on the anal side, its apical nervures almost obsolete: metathorax black: abdomen, anterior declivity of the basal segment extending in an angle on the superior portion of the segment, black; petiole black; venter with a slight scarlet-red band rather behind the middle. 9 with a black dot rather behind the middle of the tergum. Length about nine-twentieths of an inch. I obtained a female of this species in Mexico, and Dr. Klug has favored me with the sexes, differing in no respect from mine, except in being a little larger. 5. M. SCRUPEA. — Black; with dilated punctures; tergum with a whitish band. Inhabits Indiana. Body black, a little hairy, and having large punctures, which on the stethidium and head are confluent and discoidal: mandibles piceous before the tip; wing-scale also punctured: wings slightly dusky; nervures blackish: stigma not distinct, or none second cubital cellule larger than the first; the third largest; separating nervure [298] of the second and third cellules rectilinear: metathorax reticulate with larger discoidal punctures and having at base an oblong triangle: tergum, first segment short, abruptly smaller than the second, petioliform, with discoidal punctures, hairy, abrupt before, and on the anterior inferior tip having an angle on each side; second segment with the punctures rather distant, profound, with a band of whitish hairs on the posterior margin: remaining segments with numerous whitish hairs, and a dorsal elevated line. Length less than three-tenths of an inch. [Vol. I. OF NATURAL HISTORY. 741 Rather smaller than nigrita F., and may be distinguished by the more dilated punctures; the basal segment of the abdomen being suddenly smaller than the second, and shorter than in wigrita; by the abdominal band, and different configuration of the wing cellules. The emargination of the eyes is very small and acute. 6. M. GIBBOSA.-Black; petiole as long as the second abdominal segment; wings dusky at tip. Inhabits Indiana.' Body black; with numerous gray, but not concealing hairs: densely punctured; punctures large on the head and trunk: wings hyaline; at tip and including the radial cellule, fuliginous; stigma moderate; third cubital cellule incomplete; abdomen, first segment petioliform, as long as the second, and somewhat gibbous at tip, distinguished from the second by a deep stricture. Length over three-tenths of an inch. Resembles scrupea nob., but is larger, has a stigma and longer petiole. It is also like nigrita F., but is larger, with a much more obvious stigma: wings dusky at tip; the petiole more gibbous at tip, &c. [299] TENGYRA Latr. King. T. STYGIA.-Black; mandibles piceous at tip. Inhabits Indiana. Body entirely black, immaculate, punctured; mandibles piceous at tip; near the tip one-toothed; wings hyaline; nervures black, separating nervure of the first and second cubital cellules wanting; stigma obvious, black: abdomen, segments contracted near the incisures: oviduct not extending beyond the terminal processes and concealed beneath them. Length two-fifths of an inch. Resembles T. Sanvitali Latr., but is larger, with a much larger stigma, and each abdominal segment is much more contracted before its posterior incisure. METHOCA Latr. M. BICOLOR.- 9 Rufous; head and part of the tergum black. Inhabits Indiana. Body pale yellowish-rufous, polished: head black: antennae 1835.] 742 BOSTON JOURNAL rufous, terminal joints piceous: mandibles and palpi rufous: thorax, segments subequal: anterior and posterior ones convex, subovate, intermediate one with two slightly elevated convexities: abdomen ovate-subfusiform: tergum with a transverse, triangular black spot at the tip of the second segment, another on the third, the remaining ones confluent. Length one-fourth of an inch. The abdomen does not contract abruptly to the petiole but subsides gradually. Van der Linden says that the species of this genus are the females of species of Tengyra. [Anh. des Sc. Nat. Jan. 1829, p. 48.] [300] TIPHIA Fabr. Latr. T. TARDA.-Body polished, black, punctured: mandibles piceous in the middle: metathorax with three longitudinal lines, and the minute lines on the margin of the posterior declivity very regular and obvious: wings tinged with honey-yellow: nervures brown; stigma black: incisure of the first abdominal segment not very much contracted: second segment at its basal mar - gin with the minute longitudinal lines very regular and distinct palpi dull piceous. Inhabits Indiana. Length about three-tenths of an inch. The smallest species I have seen, and may be distinguished from its American congeners by its size. The male has the metathoracic lineations more distinct. It is smaller than the fenmorata of Europe. MYZINE Latr. Klug. 1. M. HAMATUS.-Black; thorax spotted and abdominal segmenis margined with yellow: the latter not abruptly emarginate each side. Inhabits Indiana. S Body black, polished, with small punctures: nasus, labrum, tip of the basal joint of the antennae, two spots between the antennae and base of the mandibles yellow: collar on the anterior margins interrupted in the middle and on the posterior margin, yellow: thorax with a spot in the middle emarginate before, yel low: metathorax, a transverse yellow spot near the scutel and an [Vol. I. OF NATURAL HISTORY. 743 obscure yellow, longitudinal spot each side at tip: tergum with a perlaceous iridescence: on each segment a slender yellow [301] band on the posterior submargin, a little undulated obtusely on its anterior edge, not abruptly emarginated on each side; on the anterior submargin of the segments an impressed transverse line: pleura, a small yellow spot beneath each wing; wings hyaline, a slightly dusky margin at tip: feet, coxae with a yellow spot: tarsi, excepting their tips: thighs at tip or a line above, and anterior pairs of tibiae yellow: venter five spotted each side. Length from three-fifths to seven-tenths of an inch. This is so much like I. subulata nob., that it is not without much hesitation that I give it as distinct. It is, however, much larger and more robust, and the form of the bands of the tergum is different; those of the subitata being abruptly notched each side of the middle as in the valvulus Fabr., whereas in the bands of the present species, instead of the abrupt notch, is an obtuse and dilated undulation of the edge. A variety occurs in Missouri, of which the wings are yellowish, and the second recurrent nervure is confluent with the dividing nervure of the second and third cubital cellule. 2. M. SUBULATUS nob. Sapyga, Western Quarterly Reporter.A variety inhabits Mexico in which the abdominal bands are less abruptly emarginate each side. SAPYGA Latr. S. CENTRATA.-Black, with yellow spots; abdomen 5-banded. Inhabits United States. Body black: head: thorax with a transverse spot each side before, two on the middle, one beneath the superior wing, and two large ones behind, yellow: [302] wing hyaline; nervures fuscous: stigma brown: radial cellule fuliginous: tergum, each segment, excepting the first, with a yellow, dilated band on its middle and more or less interrupted: venter with a transverse spot each side on the third, fourth and fifth segments: feet yellow: thighs, except at the tip, black: tarsi honey-yellow. Length about three-tenths of an inch. Var.? a. Spots ferruginous. Length nearly two-fifths of an inch. 1835.] 744 BOSTON JOURNAL I have hardly a doubt that the individual here given as a variety is a distinct species; but as my specimens are much mutilated, I am unwilling to venture to separate them. POMPILUS Fabr. Latr. 1. P. CALIPTERUS.-Wings bifasciate; antennae and feet honey-yellow. Inhabits Indiana. Body black, polished, slightly pruinose: antennae honey-yellow, a little dusky towards the tip: nasus, at tip, mandibles and palpi honey-yellow: wings hyaline, with a blackish band on the middle and a much broader one crossing the second and third cubital cellules; the latter hardly reaches the anal margin; basal series of transverse nervures dislocated at the externo-medial nervure: feet honey-yellow; tarsi with the ultimate joint blackish; intermediate and posterior pairs of feet more or less varied with blackish. Length three-tenths of an inch. A very pretty species, of which I have as yet obtained but two specimens. It is probably allied to the bifasciatus Fabr. 2. P. ARCHITECTUS.-Dark purple; wings hyaline. [303] Inhabits Ohio. 9 Body dark bluish-purple, somewhat hairy: head black in front, with short, dense, yellowish-cinereous hair: mandibles at tip piceous: wing-scale dark piceous: wings hyaline, nervures blackish: second and third cubital cellules not unusually contracted at the radial cellule, but almost equal in that part, feet black: tergum, anal segment polished. Length about three-tenths of an inch. This insect forms neat mud nests under prostrate logs and stones. They consist of short cylinders, agglutinated together alternately, and each composed of little pellets of mud, compressed, or rather appressed to each other. When these are adjusted to their places on the edge of the cylinder, each has a fusiform shape and the slender end of one laps over that of another, and the convex part of the pellet of the succeeding layer is placed against this duplicature so as to restore the equality of the edge. This arrangement gives the surface an alternate appearance. [Vol. I. OF NATURAL HISTORY. 745 The basal series of transverse nervures is very slightly dislocated. 3. P. BIGUTTATUS Fabr.-The individual described by Fabricius appears to be a female. Coquebert gives its length at ninetwentieths of an inch, but it sometimes exceeds half an inch in length. The male is over three-tenths of an inch in length; it is destitute of the anterior white striga of the thorax, and the tip of the tergum has a white reflection; the posterior half of the metathorax also has a white reflection. The basal series of transverse nervures is not dislocated, in this species. 4. P. LEPIDUS.-Black; abdomen and wings purplish. [304] Inhabits Mexico. S Body black, slightly sericeous: wings dark purplish; second and third cubital cellules a little narrowed at the radial cellule, particularly the latter, which is less than two-thirds the length of the second cellule, in that part; basal series of transverse nervures not dislocated; metathorax with a very slight reflection of purplish, and without any impressed line; the posterior edge obviously reflected; tergum with a distinct purplish reflection; beneath black; in a favorable light a very slight purplish reflection may be perceived on the thighs. Length two-fifths of an inch. 5. P. 5-NOTATUS.-Tergum on the second segment with two white spots; third segment with a white interrupted band. Inhabits Indiana.. Body black; head with a slight white reflection before; and a very slender white line on the posterior orbit: wings on the apical margin black; basal series of transverse nervures not dislocated; tergum with a white dot each side before the middle, on the second segment: third segment with a white, interrupted band at base, on the fourth segment at base is an obsolete, whitish spot each side, sometimes wanting; anal segment with a white spot at base. Length two-fifths of an inch. Resembles b6quttatus Fabr., but is distinguished by the two or four more white spots on the tergum, as well as by the white spot on the anal segment. 1835.] 746 BOSTON JOURNAL 7. P. MELLIPES.-Black; feet yellowish rufous. Inhabits Indiana. Y Body black, somewhat sericeous with silvery hairs; antennas, joints long, distinct; mandibles piceous at tip: [305] palpi whitish: wings hyaline; third cubital cellule very little contracted before, larger than the second; first recurrent nervure entering the second cellule at the middle; basal series of transverse nervures dislocated; feet bright honey-yellow, the coxae only black. Length over two-fifths of an inch. 8. P. (Miscus) CORNICUS [CONICUS].-Black; wings a little dusky; basal line of transverse nervures widely dislocated by the externo-medial nervure. Inhabits Indiana. $ Body black, immaculate; wings dusky; nervures blackish; second cubital cellule somewhat conic, the anterior basal nervure entering the radial cellule in a much arcuated direction, so as not to form an angle with it; third cubital cellule not much contracted anteriorly; basal series of transverse nervures widely dislocated, that portion which is between the externo-medial and anal nervures is equal to the length of the dislocation; abdomen polished; mandibles at tip piceous. Length less than one-fifth of an inch. A Wings less obscure; anterior tibia and tarsi obsoletely dull yellowish. Length one-fourth of an inch. 9. P. (MISCUS) PETIOLATUS.-Tergumn fulvous near the base; third cubital cellule petiolated. Inhabits Indiana. 2 Body black, a little sericeous: wings blackish; third cubital cellule decidedly petiolated: tergum with the terminal half of the first segment, and the greater portion of the second segment yellowish-fulvous. Length over two-fifths of an inch. The petiolated character of the third cubital cellule resembles that of P. niger Fabr. The basal series of transverse nervures is distinctly dislocated. [306] [Vol. I. OF NATURAL HISTORY. 747 [Continuation from Boston Journal of Natural History, vol. 1, May, 183., No. 4, pp. 361-416.] MERIA Jur. M. COSTATA.- 9 Black; tergum with yellow bands and two spots. Inhabits Indiana. Body black: head above the antennae with a transverse line, slightly interrupted in the middle, an orbital line, and short line behind the eyes, yellow: mandibles piceous: thorax with two transverse spots before, a small, triangular one above the wingscale, a transverse one behind the scutel, and a bilobed one each side behind, yellow; each side of the middle of the thorax are two abbreviated, somewhat oblique, impressed lines: metathorax with a double yellow longitudinal side and obvious transverse rugas: pleurae with a triangular spot under the superior wings, a small oblique line over the intermediate feet, yellow: wings with a brown costal margin: tergum [362] with a yellow band on the middle or before it, of each segment, excepting the last; the second band interrupted into two transverse, oval spots: venter with a longitudinal, lateral spot on the second segment and a transverse lateral one on the third, yellow; tarsi and intermediate and posterior pairs of tibiae piceous; a yellow spot on the posterior coxae. Length half an inch. Var a. Middle of the thorax with a small double yellow spot. The observations which I had occasion to make relative to the generic affinities of Plesia marginata nob., are exactly applicable to this species. It agrees precisely with Jurine's character of Plesia, but differs from Mizine Latr. by having the mandibles entirely destitute of teeth, a character which it has in common with Meria Ill., but the form of its wing-scale, will not admit of its being referred to the latter genus; I have, however, in this instance, been guided by the characters laid down by Latreille in the Rlgne Animale (first Edition). 2. M. MARGINATA.-Plesia marginata nob., Western Quarterly Reporter. 1837.] 748 BOSTON JOURNAL 3. M. COLLARIS.-Collar with an interrupted band and two spots yellow. Inhabits Indiana. Body black: head with two spots above the antenna, frontal orbits, and dilated line behind the eyes, yellow: mandibles dark piceous, black at tip: collar with an interrupted band on the posterior margin and two spots before yellow: thorax with a small yellow spot above the wings: wing-scale dull honey-yellow with a yellow spot: wings yellowish, fuliginous, dusky on the costal margin towards the tip; behind the scutel is a transverse [363] yellow line: metathorax somewhat sericeous, without any appearance of rugae, and with two yellow longitudinal spots: tergum with a somewhat varied reflection; first and second segments with a lateral yellow spot, (those of the former probably, in some specimens, obsoletely connected); third and fourth segments with a lateral basal yellow spot, connected by a slender line; fifth segment with an obsolete yellow lateral spot: pleura with a yellow spot under the anterior wings: feet, anterior knees and tibial dilated line yellow; intermediate and posterior tibiae and all the tarsi ferruginous: anal segment above minutely lineated, and at tip, dull ferruginous. Length over three-fifths of an inch. This species is larger than costata nob., which it much resembles, but may be distinguished by the sericeous appearance of the metathorax and the absolute destitution of ruge on that part; in the costata also, the lateral spots of the metathorax are double. SCOLIA Fabr. 1. S. EPHIPPIUMI. —Black; tergum bifasciate with fulvous. Inhabits Mexico. Body black: wings dark violaceous; cubital cellules two, the second receiving two recurrent nervures, and with an abbreviated nervure proceeding from its base towards the tip of the wing: tergum violaceous-black; second and third segments fulvous, with a narrow basal and terminal black margin; beneath black: venter slightly tinged with violaceous: thighs not remarkably robust. Length t over one inch and one tenth. A large and fine species. [364] [Vol. I. OF NATURAL HISTORY. 749 2. S. DUBIA.-Black; abdomen ferruginous behind with two yellow spots on the third segment. Inhabits United States. Body black: head and thorax immaculate: wings dark violet blue: cubital cellules two, with no appearance of more than one recurrent nervure: abdomen, first and second segments black; remaining segments ferruginous; more hairy, somewhat, than the others; the third segment, however, more or less tinged with blackish and with two transversely oval, a little oblique, bright yellow spots. Length four-fifths of an inch. A very fine, though rather common species, in various parts of the Union. 3. S. CONFLUENTA nob. Western Quarterly Reporter.-I think it highly probable that Drury's fig. 5, pl. 44, vol. i, is intended for this insect. I was deterred from quoting this figure in consequence of its yellow head and four-banded tergum; but the head is truly, on its front and base, covered with yellowish cinereous hair, as well as the anterior part of the collar; this may agree with Drury's observation that the " head is of a pale yellow, in front" and "the neck is hairy and of a lemon color." The species also probably varies in having four yellow bands. Drury's figure is that of a female, and my specimen agrees with it in having an immaculate thorax and scutel, as in the jbssulana Fabr., which I believe to be in reality the female of this same species, and of course the same as that of Drury; whereas he quotes Drury's figure as that of radula F. which appears to be the male, if I may judge by the " thorace maculate " and other corresponding characters. I have no index to the first volume of Drury, but Fabricius quotes the figure as [365] Sphex plumipes Drury. If this be correct, Drury has the priority, and the name and synonyms, will stand thus: Scolia plumipes Drury. " fossulava Fabr. (female). radula Fabr. (male). confluenta Say, (female). 1835.] 750 BOSTON JOTRNAL CEROPALES Lat. 1. C. INTERRUPTA.-Black, spotted and banded with yellow; wings dusky; antennae and feet honey-yellow; tarsi yellow. Inhabits Indiana. Antennae honey-yellow; first joint, bright-yellow: labrum yellow, black at base: hypostomayellow, with a quadrate spot and incisures black: orbits dilated, yellow, interrupted above: thorax impunctured; margin of the anterior segment all around, longitudinal spot each side of the scutel and transverse spot behind the scutel, yellow: metathorax at tip bifasciate with yellow, posterior band clavate each side on the pleura: wings fuliginous, particularly on the cubital cellules and tip: abdomen ferruginous, varied with obsolete yellow and black bands; and with two yellowish spots on the first segment: pleura with a spot behind the wings and a larger one over the intermediate feet, yellow: coxse varied with yellow: thighs honey-yellow, black at base: tibia honey-yellow, yellow at base: tarsi yellow. Length two-fifths of an inch. Closely allied to fasciata nob. but the thorax is not distinctly punctured, the wings are dusky, &c. [366] 2. C. APICALIS.-Black; wings black at tip; abdomen with a rufous band; tip white. Inhabits Indiana. Body black: hypostoma hoary: collar on the posterior margin white: wings hyaline with a fuliginous tip, in which is an obsolete hyaline spot or band: metathorax dull silvery; abdomen rather slender towards the base; second segment, excepting on its posterior margin, fulvous; anal segment white: posterior tibiae with a white line on the posterior side: intermediate and posterior tarsi with the second, third and fourth joints white, with black tips. Length over two-fifths of an inch. CHLORION Latr. C. CANALICULATUM nob. (Ampulex) Western Quarterly Reporter, vol. ii. p. 76. The name Chlorion has priority over that of Ampulex given by Jurine. [Vol. I. OF NATURAL HISTORY. 751 BEMIBEX Fabr. Latr. 1. B. LONGIROSTRA.-Rostrum extending beyond the insertion of the intermediate feet; superior wings with the marginal and last submarginal cells divided by a very distinct space. Inhabits Mexico. Body black, with short, dense, white hair: antennae tinged with piceous; first joint white beneath: anterior orbits dull white: nasus whitish, with two black spots: tergum white, with a bilobate, black spot at base: rostrum honey-yellow; extending nearly to the origin of the posterior feet: collar, anterior and posterior margins white: [367] thorax with a very small fulvous, abbreviated line each side of the middle, and a small, double, fulvous spot behind the middle: scutel with a white lateral spot: metathorax with a white line at base and an oblique one each side towards the tip: tergum varied with yellow and black or green and black; the posterior margins of the segments dull rufous; about four distinct black spots: feet honey-yellow: thighs black beneath: tarsi paler: venter honey-yellow, with a black spot before the anterior spine. Length from seven-tenths to four-fifths of an inch. With the short maxillary palpi and the one-toothed mandible of Bembex, this insect has the radial and last cubital.cellules as widely separated at their tips as in Monedula. The proboscis is not folded, but extended horizontally beneath the body. These characters may justify the formation of a distinct genus, or at least of a division, under the name of Steniolia. 2. B. FASCIATA Fabr.-A male in my cabinet has six bands upon the tergum and two spots on the ultimate segment: the first band is double the width of that of the female, and is interrupted by a very small space only; second band not interrupted, but its two lunules are so continued as to inclose two black spots; third band with the lunules not or hardly interrupted; fourth and fifth bands interrupted; sixth band entire, undulated: spots on the ultimate segment, orbicular; the female has but five bands. 1837.] 752 BOSTON JOURNAL GORYTES Latr. G. PHALERATUS.-Black, sericeous, varied with yellow; wings dusky. Inhabits Indiana. [368] Body blackish, impunctured: head golden sericeous: antennae, basal joint yellowish: nasus and mouth, excepting the tip of the mandibles, pale yellow: thorax, posterior margin of the collar, abbreviated line over the wings, and wing-scale, yellow: scutel yellow: wings dusky, purplish-fuliginous, tinged with yellowish towards the base; stigma small; second cubital cellule obviously hexagonal: metathorax with two large, oblong-oval, yellow spots; triangle at base destitute of small lines and with but a single impressed line: tergum, basal segment yellow; posterior narrow margin, and lobed spot on the disk communicating with the base, black: second segment yellow on the posterior margin, the yellow rather dull and a little undulated on its inner edge: third and fourth segments with obsolete yellowish posterior margins: pleura somewhat silvery sericeous, with three almost confluent yellow spots in a line with the collar: feet pale, honey-yellow; thighs and coxae, with more or less of black above. Length about half an inch. This is a large species. The character which Jurine mentions as common to all the species, of having behind the scutel a triangular space, in which parallel lines are sculptured, is so modified in this species as to present the triangle with only a simple longitudinal impressed line. NYSSON Latr. N. AURINOTUS.-Black; metathorax two-spined; tergum with three lateral spots. Inhabits Indiana. Body black, punctured: head before with a slight yellowish sericeous reflection; mandibles piceous; collar [369] with an obscure golden margin, terminating in a spot: metathorax with a golden spine each side, in a golden spot; wings dusky: tergum on the posterior edges reflecting whitish; at base of the first segment, obscure golden sericeous; posterior margins of the first, [Vol. I. OF NATURAL HISTORY. 753 second and third segments, each with a yellow band widely interrupted in the middle, the anterior one largest: feet honey-yellow: thighs black at base. Length three-tenths of an inch. Readily distinguishable from N. 5-spinosus nob. Resembles N. interruptus F. but the areolae of the metathoracic spines are not gilded in that species. PSEN Latr. 1. P. MELLIPES. — Black, with a silvery reflection; antennae at base, tibiae and tarsi piceous. Inhabits Indiana. Body black: head beneath the antennae yellowish-silvery: occiput with a silvery reflection: antennae to the seventh joint honey-yellow: mandible piceous: thorax with longitudinally confluent punctures, a slender transverse line before, four or six obsolete spots near the scutel and two large obvious ones near the insertion of the petiole of the abdomen: wings hyaline; nervures black stigma brown; second cubital cellule receiving both recurent nervures: abdomen immaculate, with a few hairs towards the tip; petiole as long as the posterior tarsi or rather longer, arcuated, piceous: tibiae and tarsi piceous or honey-yellow; anterior pair with dense, short, golden hair. Length nearly eleven-twentieths of an inch. Very similar in form and color to P. atratum Fabr., [370] which, however, has the second and third cellules each receiving a recurrent nervure, and the petiole is proportionally rather shorter. 2. P. LEUcoPUS.-Black; hypostoma silvery: tarsi white. Inhabits Indiana.? Body black, with a slight silvery reflection: antennae immaculate: hypostoma entirely silvery: thorax with minute, longitudinal lines on the disk: wings hyaline: nervures blackish; second cubital cellule receiving the two recurrent nervures: tergum impunctured, polished; petiole slightly arcuated, rather shorter than the posterior tarsus: tarsi white, dusky towards the tip. 1837.] 48 754 BOSTON JOURNAL Length over three-tenths of an inch. S Lines of the thorax only visible at base and tip. Length over one-fifth of an inch. LYROPS Illig. t Stemmata, one. 1. L. ARGENTATA Beauv.-Black; tergum, segments margined with dark glaucous; metathorax with a few wrinkles on the posterior lateral margin. Inhabits the United States. $ Body black: collar having a gradually elevated angle on the middle: wings slightly dusky; a darker band at tip; by an obliquely transmitted light, opalescent, varying to purplish, and at tip, in the darker portion, tinged with green; recurrent nervures entering the second cubital cellule very near to each other, but little more than their dwn width apart; metathorax, posterior lateral edge wrinkled transversely: tergum, posterior margins of the [371] segments dark glaucous, without any bright silvery reflection: posterior pair -of tibiae at tip behind, with a ferruginous spot. S More slender, wrinkles of the metathorax less obvious, and the recurrent nervures at their entrance into the second cubital cellule not quite so close together. Length 9 nearly half an inch. The color of the wings, by a particular, obliquely transmitted light, is very beautifully perlaceous and somewhat iridescent. 2. L. PEPTICA.-Black; tergum fasciate with glaucous, reflecting silvery. Inhabits Indiana. y Body black; reflecting silvery, particularly on the head and feet: palpi piceous-yellowish: collar silvery on the posterior margin; thorax and scutel having their sutures reflecting silvery: wings hyaline; nervures honey-yellow; recurrent nervures moderately near each other at their junction with the second cubital cellule: tergum, segments excepting the ultimate one, on their posterior margins glaucous reflecting silvery: anal segment with a bright golden reflection: feet black, reflecting silvery; last tarsal joint rufous. Length over half an inch. [Vol. I. OF NATURAL HISTORY. 755 - Head and base of the mandibles with a golden reflection: anal segment reflecting silvery. Length under half an inch. The black tibixe and tarsi will at once distinguish this species from aurulenta F., than which it is also smaller. 3. L. AURULENTA F. (Larra) Syst. Piez. p. 220. [372] LYRODA. t t Stemmata, three. 4. L. TRILOBA.-Deep black, immaculate: head anterior to the antennae with a slight silvery reflection: mandibles dull rufous towards the base; collar somewhat trilobate, or having above an obvious angle in the middle and a more obtuse one on each side; thorax having a distinct, impressed, longitudinal line before; wings purplish fuliginous, almost opake; recurrent nervures rather distant at their junction with the second cubital cellule; tergum in a particular light, more obviously sericeous on the posterior margins of the segments. Length over half an inch. This has very much the appearance of Larra sethiops nob., but is much larger. In that species also the collar is emarginate in the middle, the wings are but very slightly tinted, and the recur rent nervures approximate at their junction with the second cubital cellule; it has but one ocellus, and the mandibles are not obviously armed with a tooth on the inner edge. 5. L. SUBITA.-Black; tergum, segments margined with a whitish reflection; metathorax wrinkled above. Inhabits Indiana. n Body black: head before with a somewhat silvery reflection: collar with an abruptly elevated angle in the middle; wings at tip dusky; recurrent nervures entering the second cubital cellule, at a distance from each other; third cubital cellule but little narrowed: metathorax with small, transverse wrinkles on the disk as well as on the sides: tergum, posterior margins of the segment with a silvery reflection. Length [373] Resembles caliptera, but may be distinguished by the greater width of the third cubital cellule; by the greater distance be1837.] 756 BOSTON JOURNAL tween the recurrent nervures at their entrance into the second cubital, and by the more wrinkled metathorax. TRYPOXYLON F. Latr. 1. T. POLITUS.-Black; very highly polished: without any silvery reflection; thorax and scutel with a slightly impressed, longitudinal line: wings black-purple, almost opake: abdomen rather less slender at base than that of T. figulus F., but the basal joint is rather abruptly slender on its basal half; this segment has an abbreviated, impressed, longitudinal line before its tip; second segment with a similar line before its middle: on the head and stethidium are very numerous, small punctures, but none on the abdomen: posterior tarsi white, first joint at base, and pulvilli blackish. Inhabits Indiana. Length nine-tenths of an inch. Judging by memory, as I have not his work here, this is probably the albitarsa Beauvois, but although it agrees with the short description of Fabricius, yet I greatly doubt if it is the albitarsa of this author, who gives its native country as South America, on the authority of Mr. Smith and of the Museum of Mr. Lund, from whom and from Mr. Sebestedt he obtained an opportunity to describe a great number of Hymenoptera of that portion of our hemisphere; and but two species from North America. For these reasons I have been led to consider the albitarsa F. as South American; and as Latreille says that every thirty degrees of latitude exhibits a total change [374] in the insect productions, I give a new name to this species. 2. T. CLAVATUS.-Abdomen at base slender and a little nodulous; wings at tip dusky. Inhabits United States. Body black; head and stethidium with silvery reflection: wings hyaline, terminal margin dusky: abdomen clavate: the first and second joints petioliform, a little nodulous at their tips: posteri. or tarsi white; the terminal joint and base of the first joint black; T with a spine on the posterior trochanter. Length about nine-twentieths of an inch. [Vol. I. OF NATURAL HISTORY. 757 Var. a. Terminal joints of the tarsi blackish; a yellow band at base of the second segment of the tergum. Judging from memory, as in the preceding instance, I suppose this to be the fuscipennis Beauvois, but not that of Fabricius, for the reasons there adduced. I may also state that this species does not correspond with Fabricius' description in having " alae nigrae cyaneo parum nitidse," neither does it agree with " Pedes nigri tarsis albis " inasmuch as the posterior pair only are partially white. 3. T. CARINATUS.- Black: head and stethidium with silvery reflection: a prominent, acute carina between the antennae, divaricating above the antennae into two carinae: antennae emarginate beneath towards the middle: wings hyaline: a slight tint of dusky at tip: tergum gradually attenuated to the base; three first incisures a little contracted; feet, anterior pair of knees, tibiae and tarsi yellowish; intermediate knees and tarsi yellowish in the middle above dusky; posterior tarsi obscurely yellowish towards the tip. Inhabits Indiana. Length three-tenths of an inch. [375] Remarkable by the carina of the head and the emarginate antennae. It is much smaller than the figulus F., and its abdomen is formed as in that species. OXYBELUS Latr. 1. O. EMARGINATUS. — Black; scutellar spine emarginate; tergum 4-spotted. Inhabits Indiana. Body black, with a slight silvery reflection, particularly on the anterior part of the head: antennae dull yellowish at tip: wingscale honey-yellow: wings hyaline: scutel with a dilated process widely emarginate at tip, and a lateral sublanceolate, decurved, acute, white one; tergum, first segment with a longitudinal, indented line, and a transverse, abbreviated, white line at tip each side; second segment also with a similar line: tarsi pale honeyyellow: anterior thighs yellow at tip: tibiae yellow; posterior pair black, yellow at base. Length three-twentieths of an inch. 1837.-1 758 BOSTON JOURNAL 2. 0. 4-NOTATUS nob. Long's Expedition. The male is almost destitute of spots on the second segment of the tergum, and all the tibiae have a white line. This species resembles the 0. trispinosus Fabr., but that insect may be distinguished by the dilated figure of the spot on the basal segment of the tergum and by the tibiae being entirely honeyyellow. 3. 0. LEsTUS.-Line on the collar, on the scutel and five lateral spots on the tergum yellow. Inhabits Indiana.' Body black, punctured; head with a slight silvery reflection: antennae ferruginous: mandibles yellow, piceous [376] at tip: collar with a transverse, somewhat undulated yellow line, interrupted in the middle: scutel with a double, transverse, yellow spot; metathorax with the middle spine simple; the lateral ones depressed, whitish, margined on the inner side with bright yellow: tergum with five yellow spots on each side: knees, tarsi and tibiae yellow, the latter with a dilated black line on the inner side. Length nearly one-fifth of an inch. Smaller than mucronatus F., which is destitute of the scutellar line. It may be distinguished from the preceding species, by the yellow color on the collar and scutel. CRABRO Fabr. C. CONFLUENTUS [coNFLUENs].-Black, with large confluent punctures; tergum interruptedly fasciate. Inhabits Indiana.? Body black, densely and confluently punctured, particularly on the stethidium, where they are sometimes longitudinally confluent, so as to exhibit lines between them; they are largest on the metathorax; hypostoma and anterior orbits behind the basal joint of the antenna, silvery: antennae, basal joint yellow; second joint honey-yellow; collar yellow, slightly interrupted in the middle: scutel with a large, transverse, yellow spot; a yellow transverse line behind it; wings slightly tinged with dusky: abdomen oval, rather abruptly narrowed at base: tergum with the incisures contracted, the segments being convex; approxi[Vol. I. OF NATURAL HISTORY. 759 mately punctured; segments on their middles, each with an equal band which is interrupted for only a narrow space at the middle: pleura with a yellow spot at the humerus: knees, tibiae and tarsi yellow: venter immaculate. [377] Length over three-tenths of an inch. % Spot of the scutel interrupted or wanting; antennae beneath, dull honey-yellow; the two posterior bands of the tergum generally confluent in their middles; abdomen longer and more slender than that of the female. Length three-tenths of an inch. The sexes are more readily distinguished by the tip of their abdomen than by the antennae. I have nine males and three females: two of the latter measure two-fifths of an inch. The punctures of this species are larger and more dense than in our other species. C. ARCUATUS.-Metathorax with numerous parallel lines; tergum with yellow spots and bands. Inhabits Indiana. Body black, with minute, dense punctures: front with a wide glabrous interval between the silvery orbits: antennae,basal joint yellow, with a black line near the inner base; sixth joint arcuated, a little prominent inwardly at tip: hypostoma yellowish-silvery: thorax with a slightly interrupted line on the collar, of a bright yellow; a yellow transverse line beneath the scutel: wings a little tinged with dusky: metathorax with numerous, small, parallel lines, arcuated at base, and transversely rectilinear behind, extending upon the pleura beneath the wings: pleura with two small yellow spots before: tergum with an oblique somewhat arcuated, yellow spot each side of the first segment; an oblique elliptic one on the second segment each side; a reclivate, transverse, lateral yellow line on the third; remaining segments each with an entire, slightly undulated, slender greenish-yellow band: anal processes acute, very deeply and regularly ciliated: feet yellow: coxae and trochanters black: thighs at the base black; the black portion very small on the anterior [378] pair, but on the posterior pair extending on the inferior surface to the tip: venter immaculate. Length two-fifths of an inch. 1837.] 760 BOSTON JOURNAL STIGMUS Jur. Latr. 1. S. PARALLELUS.-This species resembles the fraternus nob. but it may be distinguished by the following comparative characters. The posterior thighs and middle of the tibiae are black. The stigma is a little smaller. The dividing nervure of the first and second cubital cellules is parallel to the posterior nervure of the second discoidal cellule; whereas in the fraternus, the latter is more oblique. The size is much the same. Inhabits Mexico. The Stigmusfraternus, is not uncommon in Indiana, and as in the present species, the hypostoma of the male is somewhat silvery. 2. S. PUSILLUS.-Petiole obsolete: second cubital cellule large. Inhabits Indiana. Body black, polished: head before, and mouth, including the mandibles, whitish: antennae honey-yellow; basal joint before, whitish: wings hyaline; nervures pale brownish; stigma fuscous; second cubital cellule large, somewhat longer than broad: feet honey yellow; posterior pair blackish; abdomen with a very short petiole, almost sessile. Length about one-twelfth of an inch. This is much the smallest species I have seen. The dividing nervure of the first and second cubital cellules is exactly opposite to the posterior nervure of the middle discoidal cellule. The hypostoma of the female is black. [379] PEMPHREDON Latr. 1. P. MARGINATUS.-Black; antennae at base, mandibles and feet honey-yellow. Inhabits Pennsylvania. Body polished; antennae blackish; first and second joints honey-yellew; the former as long as the second and third together, which are nearly equal: mandibles honey-yellow, not very obviously denticulated at tip: wings tinted with fuliginous; nervures brown; stigma fuscous, not much dilated; nervures of [Vol. 1. OF NATURAL HISTORY. 761 the second cubital cellule and second recurrent nervure margined with whitish, the latter abbreviated before the anal tip: abdomen subsessile; with the exception of the first segment, piceous blackish: feet honey-yellow. Length over three-twentieths of an inch. The second cubital cellule is somewhat larger than usual, and the nervures which form it, as well as the second recurrent nervure, are less distinct than usual. 2. P. ANNULATUS.-Black; mandibles white; feet yellowish. Inhabits Indiana. 9 Body black, polished, minutely punctured: antennae, basal joint white; second joint piceous: nasus prominent in the middle: mandibles and palpi white: wing-scale dull honey-yellow: wings hyaline; nervures blackish, tinged with yellow at base; first and second cubital cellules receiving their appropriate recurrent nervures: metathorax with larger punctures and lines: abdomen polished, impunctured, subsessile, the petiole being very short: pleura with a small whitish dot under the wing-scale: feet honey-yellow. Length one-fifth of an inch. [3801 % Hypostoma silvery: nasus rounded: antennae annulate, one-half of each joint being yellowish. Length over three-twentieths of an inch. ALYSON Jur. 1. A. oPPosITUS.-Black; feet honey-yellow; tergum with two yellow spots. Inhabits Indiana. 9 Body black: mouth, hypostoma and anterior orbits yellow: antennae at base beneath yellow: thorax with an obsolete yellow spot before the wings each side: wings very slightly tinted with dusky, more particularly in an obsolete band toward the tip: nervures fuscous: stigma brown: recurrent nervures entering the petiolated, cellule exactly opposite to its bounding nervures: spines very short: feet honey-yellow: tergum polished, first segment honey-yellow; second segment with a large, lobatelyrounded, bright yellow spot each side at base; the base is also obsoletely honey-yellow. 1837.] 762 BOSTON JOURNAL % Antennae, terminal joint as long as the first, arcuated: wings not distinctly tinted with dusky except in the radial cellule: abdomen, with the exception of the two yellow spots, black: tarsi paler than the tibiae and thighs. Var. a. Yellow spots of the tergum obsolete. Length three-tenths of an inch. In form, size and color, very similar to A. spinosus, (Pompilus,) Panzer. But in that species the feet are blackish, &c. 2. A. MELLEUS. — Honey-yellow; head, pectus, and tip of the abdomen black. Inhabits Indiana. Thorax honey-yellow: head black: mouth, anterior [381] orbits and basal joint of the antenna excepting a line on the exterior side, whitish: region of the scutel dusky: wings with a dusky band: metathorax honey-yellow, with the elevated lines rather slender; the lateral lines of the dorsal area arcuated: tergum with the first and second segments honey-yellow, the latter with a lateral whitish spot; remaining segments blackish; anal segment obscure piceous: pectus black: feet, excepting the base of the posterior coxae, honey-yellow. Length under one-fourth of an inch. The prevailing honey-yellowish color distinguishes this species; and the metathoracic lineations are much finer than those of the preceding species. The lateral lines of the dorsal area of the metathorax in the oppositus are nearly rectilinear. CERCERIS Latr. 1. C. FUMIPENNIS. — Black; tergum with a broad band and very narrow ones; wings blackish. Inhabits Indiana. Body black, densely punctured: head with a golden, suborbicular, orbital spot beneath the line of the antennae, and dense golden cilie each side at the mouth; antennae entirely black: collar with two yellow spots: behind the scutel a transverse, yellow line: wing-scale with a small yellow spot: wings blackish; first recurrent nervure entering opposite to the dividing nervure of the first and second cubital cellules: tergum, incisures wide; first segment rounded; second with a broad, equable, ter[Vol. I OF NATURAL HISTORY. 763 minal band; remaining segments with each a terminal capillary band, more or less interrupted in the middle; posterior band wider and somewhat irregular: tibiae yellow pale, [382] on the inner side and tip of the exterior side black: tarsi, anterior pair dull yellowish; posterior pairs, except at base, blackish: venter immaculate. Length over two-fifths of an inch. Resembles C. deserta nob., but aside from other differences it may be distinguished by that species having somewhat clearer wings, and the inosculation of the first recurrent nervure being opposite to the middle of the second, or petiolated cubital cellule; the antennae also in that species are yellowish before, towards the base; the scutel has two spots in addition to the yellow line behind it, and the bands of the tergum are always broader than in the present species. The fallax nob. differs in having the transverse yellow line on the scutel in a direct line between the origin of the posterior wings; whereas in the present species it is behind the scutel. 2. C. SEXTA.-A broad band on each segment of the tergum; metathorax with a lateral spot. Inhabits Missouri. Body black; head before, base of the mandibles and basal joint of the antennae beneath, yellow; third joint of the antenna dull honey-yellow: collar with two large yellow spots: wingscale and transverse line behind the scutel yellow; the triangular impunctured space behind the transverse line very obvious, with oblique lines and a longitudinal one in the middle: wings a little fuliginous particularly on the margin and tip; nervures brown; stigma yellow; recurrent nervure of the second cubital cellule entering at its middle: metathorax with a large, oval, longitudinal, yellow, lateral spot: tergum with a broad yellow band on each segment; that of the first or petiolar segment slightly interrupted in the middle; the two ultimate ones almost ferruginous: feet honey-yellow, [383] more or less varied with bright yellow: venter with interrupted bands. Length over half an inch. This was given to me by Nuttall. With the exception of frontata and bidentata nob. this is the largest North American 1837.] 764 BOSTON JOURNAL species I have seen, and the much more dilated bands of the tergum are distinctive. PHILANTHUS Fabr. Latr. P. SOLIVAGUS. —Black, with small punctures; tergum fasciate on each segment. Inhabits Indiana. % Body black; punctures numerous, small: hypostoma, anterior orbits, to the emargination, and large spot above the insertion of the antennae yellow: collar, margin yellow, slightly interrupted in the middle: stethidium immaculate: wing-scale yellow: wings very slightly tinged with dusky; nervures fuscous, towards the base and stigma honey-yellow: tergum, segments having each a greenish yellow band on the posterior submargin, that of the first segment largest, the others subequal; sixth segment immaculate: pleura, pectus and venter immaculate: knees, tibiae and tarsi yellow: posterior pair of tibiae with a spot on the posterior tip and their tarsi above tinged with ferruginous. Length two-fifths of an inch. RYGCHIUM Spinola. 1. R. BALTEATUM. — Black, thorax and head varied with ferruginous; tergum with a yellow band. Inhabits Indiana. [3841 Body black, punctured: head ferruginous; region of the stemmata, black: antenna black, first and second and half of the third joints ferruginous: thorax with a broad ferruginous margin, including the scutel, and with more or less of ferruginous in the middle; anterior margin with a slender yellow line interrupting the ferruginous margin: wings black-violaceous: feet yellowish: thighs dusky at base: tergum, first segment impunctured, on the posterior margin a yellow band abruptly dilated each side; second segment slightly punctured at base, posterior indented, with large punctures, and dull ferruginous; remaining segments punctured. Var. a Behind the scutel a transverse, yellow, abbreviated line. [Vol. I. OF NATURAL HISTORY. 765 Var. A. Posterior margins of the terminal segments of the tergum obsoletely ferruginous. Var. K. The ferruginous color predominates having but a small portion of black on the thorax; the tergum is ferruginous with only a line of black on the first segment, and a triangle of black at base of the second segment; but the yellow band on the first segment is still visible though less obvious. Length over four-fifths of an inch. Not a common insect. 2. R. 5-FASCIATUM nob. (Pterochilus,) Appendix to Long's second Expedition. I am not sure of the generic place of my specimens as they have lost their trophi. [Ante 1, 234.] 3. R. CRYPTICUM nob. (Odynerus,) Western Quarterly Reporter. [Ante 1, 168.] 4. R. ANNULATUM nob. (Odynerus,) Appendix to Long's second Expedition. [Ante 1, 235.] [385] ODYNERUS Latr. 1. O. QUADRISE CTUS.-Black; trunk before and behind, tergum before and a band, white. Inhabits United States. Body black, punctured: head with a small spot above the interval of the antennae, line on the basal joint of the antennte, superior lateral margin of the clypeus and slight spot on base of the mandibles obscure white: thorax, a bi-lobed band on the anterior margin, spot beneath the wing, triangular spot each side on the scutel, transverse line behind the scutel, behind that again on each side is a very large triangular spot extending down almost to the origin of the abdomen, white; edge of the posterior declivity of the metathorax with a slight bifid, transverse, denticulated crest: wings dark violaceous: tergum, first segment white, with a dorsal, triangular, lobated black spot communicating with the black anterior declivity; second segment with an undulated, dull white band behind, and an obsolete, very small spot of the same color each side before the middle: feet with short, whitish sericeous hair. Length over seven-tenths of an inch. 1837.] 766 BOSTON JOURNAL This is much like the quadridens Linn., which is a true Odynerus, but it is destitute of the metathoracic spines of that species, and besides other differences it has a band on the second abdominal segment. This latter character not being very obvious may readily have been overlooked by Fabricius. The male differs but little from the female; my specimens have two additional white spots on the anterior portion of the nasus. 2. 0. OCULATUS —- Black, tips of the abdominal segments and two points on the second segment, yellow. [386] Inhabits Ohio and Missouri. Body black, with dense, rather large punctures: clypeus yellow, emarginate at tip: mandibles yellow, honey-yellow at tip: antennae, basal joint yellow, with a black line above: front with a yellow line from the base of the antennae, into the emargination of the eye, and a small spot above the interval of the antennae, yellow; thorax, a bilobed spot on the anterior margin, wing-scale and small spot beneath it, and transverse spot behind the scutel, yellow: wings dusky: tergum not so grossly punctured as the thorax; first segment with a yellow posterior margin; second with a yellow small dot each side, and yellow posterior margin extending around the venter; remaining segments obsoletely margined at tip with yellowish: feet yellow; thighs black at base. Length over three-tenths of an inch. Like the acutus Latr., but may be distinguished by its more gross puncturing, as well as by the yellow dots on the tergum. A variety from Missouri, has the feet all yellow. 3. 0. QUADRIDENS Linn. (Vespa,) Syst. Nat.; Amoen. Acad, cinerascens Fabr. The remark " size of parietina " may refer to the male. 4. 0. UNCINATA Fabr. (Vespa,) Syst. Piez. p. 25.-Fabricius mistook this species for the quadridens L., which is our largest and most common species, and sufficiently distinguished from the present, besides the denticulated metathorax, by many characters; and the following is a detailed description of it. 9 Black; tergum with a yellow band. Inhabits Indiana. [Vol. 1. OF NATURAL HISTORY. 767 Body black, punctured: head, short line behind the eye, dot above the interval of the antenna, one exterior [387] to the antennae, one each side on the clypeus, and antenna beneath, brighter towards the base, dull fulvous: mandibles on the exterior margint honey-yellow; thorax, bilobed spot on the anterior margin and transverse line behind the scutel, yellow: wing-scale piceous, black on the inner margin: wings blackish-violaceous: tergum, first segment on the posterior margin with a yellow band abruptly dilated each side; second segment at tip with much larger and'confluent punctures: feet orange: thighs, except at the knee, black. Length three-fifths of an inch. Differs from any of the varieties of our parietinus Linn., I have seen, though it is nearly allied to that species. 5. 0. ANORMIS S. (Eumenes) Long's second Expedition, probably belongs to this genus, but as the head of my specimen is destroyed, I cannot be certain whether it may not be a Pterocheilus Klug. It is like the oculatus S. LETHUS F. Latr. L. SPINIPES.-Black; clypeus broader than long; first abdominal segment somewhat white at tip. Inhabits Indiana. Body black, punctured: clypeus much wider than long: wings dark violaceous: tergum slightly punctured; peduncle rather slender, somewhat gibbous, with an indented spot above, near the tip, terminal margin with a piceous, dentate band; second segment with a distinct neck at base; posterior margin abruptly and smoothly impressed; and with the remaining segments immaculate: tibiae, posterior pairs spinous behind. [388] Length seven-tenths of an inch. Differs from L. cyanipennis F., which it seems to resemble most, in being smaller, more polished, having no testaceous at base of the petiole or on the sides of the metathorax; the wings also are less opake. 1837.] 768 BOSTON JOURNAL POLISTES Latr. 1. P. METRICA.-Ferruginous; abdomen black; wings dark violaceous. Inhabits United States. Body ferruginous: antennae, fuscous; first and second joints ferruginous beneath; five or six last joints fulvous beneath: hypostoma with a few distant yellow, short hairs, not sericeous; at the middle of the tip, a little prominent: thorax, with a black dorsal line abbreviated behind, each side of which is an obsolete line confluent behind, exterior to which at base is a black line attenuated before and abbreviated: wings dark violaceous: feet black; tibiae within, excepting the posterior pair; knees and tarsi yellowish: abdomen black; first segment obsoletely piceous each side and on the posterior edge: second segment also with obscure ferruginous on each side, sometimes obsolete. Length over four-fifths of an inch. Resembles the annularis Fabr., but the ferruginous color is more prevalent; the hypostoma is not sericeous, a little more prominent in the middle; the basal abdominal segment is somewhat larger and destitute of the annulation. I have obtained it abundantly in Indiana and Mr. Barabino sent it to me from New Orleans. 2. P. AREATA.-Thorax black bilineate and margined with yellow. [389] Inhabits Mexico. Head yellow: nasus with black sutures and line before from the middle, bifarious near the antennae: mandibles piceous at tip: antennae reddish-brown, darker above, and on the first joint yellow beneath: vertex black, of which two broad lines descend to the antennae and one descends each side, for a short distance, posterior to the eyes; a yellow oblique line from the summit to the tip of the eyes; thorax black, with two yellow vittae: collar, with an abbreviated line before the wings, and a transverse anterior one, black; wings slightly ferruginous on the costal margin: scutel and segment beneath it yellow, the former black in the middle: metathorax yellow, a black vitta, and lateral basal spot: abdomen, first segment petioliform, as long as the second: tergum [Vol. I. OF NATURAL HISTORY. 769 black, segments on their lateral and terminal margins yellow, the latter undulated before; second segment yellow also at base; beneath yellow, with black incisures: feet yellowish; posterior pair darker behind: venter yellow, with two or three slender obsolete dusky bands. Length less than half an inch. 3. P. VALIDA.-Yellow; middle of the thorax and base of the segments of the tergum ferruginous. Inhabits Mexico. 9 Body dull yellow, with ferruginous sutures: head above, and antennae at base, ferruginous: thorax on the disk ferruginous: wings yellowish ferruginous: tergum with the segments ferruginous at base: venter greenish-yellow, at base ferruginous: feet ferruginous; coxse and part of the thigh yellow. Length over one inch. A large and rather robust species. The male is more exclusively ferruginous with the posterior pairs of tarsi whitish; the head in my specimen is destroyed. [890] 4. P. MELLIFIcA.-Wings yellowish; abdomen fasciate. Inhabits Mexico. Body blackish, sericeous, with a slight golden reflection: clypeus not acute, but almost rounded at tip: mandibles at tip piceous; thorax with a distinct, longitudinal, impressed line before, extending to the middle: wings yellowish; dusky at tip scutel truncate at tip, or rather very obtusely emarginate: metathorax almost vertical, with a distinct, prominent, robust angle each side; abdomen, first segment, small and short; second greatly the largest; all margined behind with orange yellow: venter with all the margins yellow excepting the basal one. S Basal joint of the antennae beneath yellow: nasus very sericeous, having a whitish reflection: coxae and trochanters yellowish-white. Length over three-tenths of an inch. Not being able to find my notes relative to this species, I can only state, that near Jalapa, my attention was attracted by a group of Indians, who were eating honey from a paper nest, which was then so far dissected in their repast, that I could not 1837.] 49 770 BOSTON JOURNAL ascertain its proper form. The honey had a pleasant taste, and as far as I could gather from their gestures, the nest was obtained from a tree. Some of the specimens above described I found crawling feebly away, and others I extracted frem the cells in a perfect state. The trophi agree with those of the P. nigrpecnnis Oliv., excepting that the obliquely truncated portion of the mandibles is a little longer, and the terminal joint of the labial palpi is equal to the preceding joint. I had made the above description and remarks before an opportunity offered to compare the individuals with Latreille's description of his P. lecheguana (Ann. des [391] Sc. Nat. tom. 4, p. 335,) which I find it closely resembles, and to which I should refer it, but for the character attributed to that insect of having only the "bord posterieur des cinq premiers anneaux de l'abdolen jaune," whilst all the segments of the tergum of our species are margined with yellow, and the anal segment is also of that color, in all the specimens which I have seen; all the segments of the venter, moreover, are margined with the same color excepting the basal one. These differences induce me not to withhold this description, as we may reasonably infer that others exist, which can be detected only by comparison. Whether this species is the artificer of either of the nests figured by Hernandez and copied by Latreille in Humboldt's Zoology, I cannot determine, but it seems highly probable. The observation of Latreille relative to the insects that construct those nests, (or at least one of them, for they are very unlike each other) seems judicious, that "j'ai lieu de soupgonner que ces insectes sont identique ou pen differens," from his P. lecheguana. COLLETES Latr. Klug. C. IN^EQUALIS.-Labrum with four indentations near the base. Inhabits Indiana. 9 Body black with pale cinereous hair: labrum on the basal half, with four obvious indentations; thorax with the hair dusky on the disk; wings hyaline; nervures fuscous: tergum with very short dusky hair; that of the anterior portion of the basal segment, and on each side of that segment, longer and whitish or [Vol. T. OF NATURAL HISTORY. 771 pale cinereous; posterior margins of the segments with white hair, beneath [392] which the surface is dull piceous at tip basal segment with a longitudinal impressed line at base: venter. segments on the posterior margin with dull whitish hair. Length about half an inch. % With more dense and obvious hair on the front. Length less than half an inch. In warm days of March and April, this species may be oliserved flying about near the surface of the earth. SPHECODES Latr. S. CONFERTUS.-Black, abdomen rufous, black at tip; punctures dense. Inhabits Indiana. Body black, with close-set punctures: head rather small with whitish hairs; mandibles piceous black: thorax, middle thoracic longitudinal line very distinct, punctures equally close-set: scutel with the impressed line, continued from the thorax: wingshyaline: abdomen polished: three basal joints rufous; remainder black. Length three-tenths of an inch. Resembles the gibbus F., but is smaller; with a proportionally smaller head and much more dense puncturing on the thorax and scutel. HYLIEUS Latr. H. MODESTUS. — Black, opake: abdomen polished: hypostoma on each side with a triangular whitish spot: collar with an abbreviated, transverse, yellowish line each side: pleura with a yellowish spot under the humerus: wings hyaline, with blackish nervures: feet with whitish knees. [393] Length over one-fifth of an inch.' Head beneath the insertion of the antenn:n, pale yellow: antenna beneath dull ochreous: basal joint beneath, pale yellow: collar immaculate: tibiae and tarsi pale yellowish, the former with a black spot near its tip. Length about one-fifth of an inch. The spots on the head of the female, are like those of I, vaw'iegatus F., but it is a very different species. 1837.] 772 BOSTON JOURNAL ANDRENA Fabr. Klug. A. VALIDA. —9 Entirely black, immaculate; hair very short, dense, giving to the thorax and head a velvet-like appearance: head with the hair of the cheeks, tip of the nasus and outer inferior edge of the mandibles longer: mandibles with a rather strong tooth before the tip: wing-scale glabrous: wings purplishfuliginous, the darkest portion at tip; stigma honey-yellow: metathorax, surface not concealed by hairs, with separate punctures and except at base, canaliculate in the middle; at base is a transverse space of much larger, confluent punctures, behind which space is a narrow glabrous space at the origin of the groove; lateral margin hairy: tergum with very short hairs not concealing the surface; first segment concave and deeply canaliculate on the anterior face; segments with a transverse, impressed, submarginal, posterior line; on the first and second are two: venter, segments with long, rather dense hairs. Length seven-tenths of an inch. A large and fine species. [394] HALICTUS Latr. 1. H. NIGRICORNIS Fabr. (Centris.) This appears to be the male of H. viridula Fabr. (Megilla), and the same as H. nigricornis Coqueb. (Andrena) and H. sericea Forster. 2. H. RADIATUS. — Green; metathorax behind with a radiated disc. Inhabits Indiana. Body green, polished; hairs numerous, short, cinereous, not obscuring the general color: antenna black, more or less tinged with piceous, particularly beneath: nasus before black, ciliate; labrum piceous: mandibles yellow towards the base, piceous at tip: wings tinged with fuliginous; nervures brownish, supplementary nervure at tip of the radial cellule very distinct: metathorax at base having numerous, elevated longitudinal or oblique lines; on the posterior declivity is a somewhat orbicular disk, distinguished from the general surface by an elevated line equally distinct all around; it is radiated with elevated lines: tergum sometimes tinged with blue or purplish; each segment with a [Vol. I. OF NATURAL HISTORY. 773 slight inequality or impressed transverse line, near the middle: feet dark piceous; tarsi and knees somewhat paler. Length over two-fifths of an inch. 3. H. LABROSUS. — Greenish; tergum purplish, segments margined with blackish. Inhabits Mexico. Body green, with a purple reflection: antennae black: nasus at tip blackish: labrum black, much elevated at the middle of the tip; the elevation grooved before; mandibles black, tinged with piceous at tip: wings hyaline, slightly tinged with fuliginous; nervures fuscous: metathorax [395] with the including line of the posterior disk, prominent only towards the petiole: tergum darker purplish than the thorax; the broad posterior margins of the segments, blackish: feet, purplish and blue: tarsi blackish-piceous. Length about two-fifths of an inch. About the size of the preceding, from which it differs materially in color, and in the sculpture of the metathorax. 4. H. PuRus.-Green; first recurrent nervure confluent with the dividing nervure of the second and third cubital cellules. Inhabits United States. V Body green, polished, tinged with brassy or cupreous: antennae black: labrum and mandibles piceous, the latter sometimes almost honey-yellow: metathorax at base lineated; no distinct posterior disk, but the groove is well impressed, and there are often near the petiole, a few, obsolete, raised, converging lines: wings hyaline, very slightly dusky at tip; nervures brown; radial nervure fuscous; stigma pale yellowish; second recurrent nervure exactly uniting with the tip of the dividing nervure of the second and third cellules: tergum obviously varied with brassy; posterior slender margins of the segments dark purplish or blackish, sometimes not obvious: feet dull piceous: venter dull piceous. Length less than three-tenths of an inch. S Head, thorax and metathorax, greenish-blue: mandibles and labrum, dull honey-yellow: thighs obviously tinged with bluish-green: venter on the middle segments green. 1837.] 774 BOSTON JOURNAL Length less than one-fourth of an inch. A very common species. I have found their nests in [396] the soft, decomposing sap-wood of the Oak and Hickory, between the bark and the solid wood. Their cells are oval, horizontal, not symmetrically disposed, though many are parallel. These cells are composed of particles of the decayed wood, agglutinated together. Each cell contains an individual, subsisting on a yellow pollen, enclosed with it by the parent. In the same assemblage are the young of all ages to the perfect insect. The male varies in having the tibiae and tarsi yellowish-white, with more or less of green on the middle of the posterior tibiae, The preceding species, distinguished by their polished green color, are also remarkable by the very obtuse emargination of their eyes, or, in other words, the curvature of the inner side of the eye: they might very properly constitute a division of the genus. 5. H. LIGATUS.-Black; tergum banded with whitish. Inhabits United States. 9 Body black, with whitish cinereous hairs on the head and stethidium: wing-scale honey-yellow: wings hyaline, tinged with yellowish towards the base; postcostal nervure black; first recurrent nervure entering the second cubital cellule near, but not at the dividing nervure: metathorax at base having the depressed surface granulated or very minutely lineated; posterior face suborbicular, slightly concave: tergum having the posterior margins of the segments white with prostrate hair, beneath which the surface is piceous: venter a little hairy; posterior margins of the segments obscurely piceous: feet tinged with piceous, paler towards their tips; the posterior with pale ferruginous hair. Length about three-tenths of an inch. % Antennae beneath, ochreous, excepting the first and [397] second joints: nasus, labrum and middle of the mandibles, yellow: wings with the nervures darker: tergum not so very obviously banded: feet black; tibiae and tarsi, yellow; the former having a black spot on the anterior middle of the posterior pairs Length three-tenths of an inch. A very abundant species. The male is a little longer than the tmtVoale. [Vol. I. OF NATURAL HISTORY. 775 The scutelliform base of the metathorax is more or less sculptured with slightly elevated, longitudinal lines. 5. H. PARALLELUS.-Black tergum banded: wings and feet ferruginous. Inhabits Indiana. 9 Body black, somewhat hairy; hairs yellow-cinereous: nasus ciliate with ferruginous hairs which extend over the labrum: antennae with the third joint but little longer than the fourth: wings pale ferruginous, dusky at tip; second cubital cell quadrate, the basal and terminal nervures being quite parallel: tergum, each segment with a very obvious posterior margin of whitish-yellow hairs: feet ferruginous, the base of the thighs and coxa more or less blackish. Length less than half an inch. CERATINA Latr. C. DUPLA.-Blue; much punctured. Inhabits Indiana. 9 Body deep blue, densely punctured, a little polished: antennae black: nasus with a white spot, sometimes obsolete: thorax with an impressed line; disk with few punctures and more polished: wings but slightly dusky; nervures blackish: wingscale dark piceous, impunctured: [398] tergum more densely punctured towards the tip; basal segment on the anterior face impunctured, polished; remaining segments with a distinct line on their anterior submargins, curving backward on each side; between this line and the basal edge, particularly on the third and fourth segments, the surface is but little punctured and is polished, resembling a small segment: feet blackish, with piceous tarsi and whitish hair: pleura with a small yellow point under the wing-scale. Length a little over three-tenths of an inch.' Nasus and quadrate spot on the labrum, white; anterior tibiae whitish on their exterior edge. Length one-fourth of an inch. The spots on the nasus, labrum and pleura, as well as the line on the tibiae in the male corresponds with those of the male of C. albilabris F., but the general color is altogether different. A 1837.] 776 BOSTON JOURNAL variety? is destitute of the spot on the labrum and has but avery small spot on the nasus. The maxillary palpi sometimes appear to have six joints. I am not sure that the male above described, is that of the present species. STELIS Panz. S. OBESA.-Black, varied with yellow; wings fuliginous. Inhabits Indiana. Body robust, convex, punctured, black: nasus, mandibles at base, orbits anteriorly and abbreviated line behind, yellow: thorax with a yellow, arcuated line each side extending on the anterior margin: scutel somewhat indented [399] towards the tip, margined behind with yellow, which is slightly interrupted in the middle: wings fuliginous; nervures fuscous: tergum, six yellow bands, the anterior one widely interrupted, the others gradually less so to the penultimate one which is confluent; the ultimate one broadest, entire: venter yellowish at base: feet yellowish; thighs and posterior face of the tibiae partly black. Length over one-fourth of an inch. In the abdominal markings it resembles some species of Anthidium, but the maxillary palpi have two joints. OSMIA Panz. Latr. 1. O. LIGNARIA.-Dark bluish; thorax and base of the tergum, with cinereous hair. Inhabits United States.? Body very dark bluish: head with cinereous hair: nasus very profoundly emarginated: antennae black: thorax with cinereous hair; wing-scale black-piceous: wings with a slight fuliginous tinge, particularly on the costal half of the radial cellule; nervures blackish: tergum, basal segment with cinereous hair; remaining segments with short blackish hair; anal segment blackish: beneath a little darker than above: feet and ventral hair blackish. Length about nine-twentieths of an inch. S Hair of the head before dense, rather longer, and whitish; pectus, pleura and feet with cinereous hair; venter blackish; nasus very slightly and obtusely emarginate. [Vol. 1. OF NATURAL HISTORY. 777 Length about seven-twentieths of an inch. A common species, nidificates in old wood. Forms a [400] dilated oval cocoon of a ferruginous color. It seems to approach Megilla metallica Fabr., which however is said to be large, blackbronze, with white wings. 2. 0. BUccoNIs.-Black; tergum with slender white bands. Inhabits Indiana. $ Body black, with rather short gray hairs, and obvious dense punctures: head rather large, long between the eyes and thorax: nasus entire: mandibles with a patch of dense prostrate hairs near the tip: wings hyaline: nervures fuscous: wing-scale piceous: tergum with short, blackish hairs; segments rather convex, narrow, white bands of prostrate short hairs, wider each side; towards the posterior extremity with numerous white, short hairs, obvious in profile; posterior tarsi with longer hairs, tinted with ferruginous: venter with fulvous hairs. Length over three-tenths of an inch. % Resembles the female, but is smaller, and the tail has four distant denticulations. Length one-fourth of an inch. CCELIOXYS Latr. 1. C. 8-DENTATA nob. Appendix to Long's Expedition, p. 353. [Ante 1, 239.] Y Body rather more slender than that of the male; the abdomen conic and polished; head before a little pruinose, with short hairs; thoracic lines white and less obvious than in the male; feet black; tibise and tarsi more or less piceous; tergum, with the bands white and all of them single, those of the male are tinged with yellow. The Anthophora bidentata F., which is said to be [401] a Coelioxys, is described as having the abdomen brown and with only two spines. The antennae of the tail of the 8-dentata, resembles that of C. conica L., but the middle spines are much more robust and obtuse; the bands are more distinct and the abdomen opake in the male. 1837.] 7T 78 BOSTON JOURNAL 2. C. ALTERNATA.-Bands of the tergum alternately interrupted; % tail 10-spined. Inhabits Indiana. S Body black, punctured; the punctures not much crowded head with short, white hair, almost naked on the vertex: front with long, white, dense hair: antennae, tip of the basal joint obscurely piceous: thorax an interrupted, arcuated, white line before, curving over the wings; a line before the scutel, and another at its tip, white: wing-scale dull honey-yellow: wings yellow fuliginous, more dusky at tip: tergum polished, punctures more sparse than on the thorax; segments, particularly the basal ones, white on their posterior margins; and each segment excepting the ultimate and basal ones, with a white interrupted band before the middle; tail concave above, with about ten spines: feet black, more or less piceous: venter banded with white. Length over two-fifths of an inch. Y Hair on the front, short; wings destitute of the yellow fuliginous color, excepting on the stigma. Length over half an inch. NOMADA Scop. Latr. 1. N. VINCTA. —Tergum with yellow bands, which are obsoletely margined with ferruginous. Inhabits Indiana. [402] Body black: head beneath the antenna, ferruginous: orbits yellow: antennas ferruginous, dusky about the middle, terminal joint paler: collar yellow: thorax each side over the wings, with a dull ferruginous margin; before the wings a yellow spot: wingscale honey-yellow: wings slightly dusky, particularly the terminal margin: nervures honey-yellow: scutel subbilobate, yellow line on the middle, posterior margin ferruginous: metathorax near the scutel with a transverse line and an irregular, longitudinal, quadrate spot each side behind, yellow: tergum with a yellow band, gradually contracted towards the middle, and obsoletely margined with ferruginous, before the middle of each segment; anterior band a little undulated or denticulated: pectus with a triangular, yellowish spot over the fore-feet: coxae, with a yellow [Vol. I. OF NATURAL HISTORY. 779 spot: thighs ferruginous, blackish behind: tibiae and tarsi ferruginous and yellow: venter with two yellowish bands; towards the tip, honey-yellow. Length 9 nine-twentieths of an inch. S Ferruginous; orbits and head before, yellow; antenna blackish towards the tip; first joint yellow beneath; collar, line over the wings, two obsolete ones in the middle, wing-scale excepting a dot in the middle, yellow; scutel undivided, yellow; metathorax in greater part, yellow; abdomen yellow, posterior margins of the segments black, submargins ferruginous. Rather more slender than the female. 2. N. BISIGNATA nob. Appendix to Long's second Expedition.-The male has the head black, with the nasus and mouth yellow; antenna beneath, rufous; the thorax has hardly any appearance of ferruginous; but the scutel in some specimens is of that color; the thighs, particularly [403] the posterior pair have more black than those of the female. [Ante 1, 239.] Var. Abdomen rufous, immaculate. EPEOLUS Latr. E. FUMIPENNIS.-Black; thorax bilineate, ferruginous all around. Inhabits Mexico. Body densely punctured, black: head carinate between the antenna: antennas honey-yellow at base, beneath: labrum with an obsolete, minute, ferruginous dot each side: mandibles honeyyellow at base: thorax with two slender whitish abbreviated lines and whitish lateral edge: collar with a ferruginous disk, contracted in the middle; a ferruginous dot before the wings: wingscale and scutel ferruginous: wings fuliginous: tergum, first and second segments with a yellow band, the first broader and widely interrupted; remaining segments with a whitish band, the last segment with the addition of an obscure rufous terminal margin: tibiae and tarsi honey-yellow. Length three-tenths of an inch. The lunatus nob. also has a bilineated thorax, but it is a larger species, has a whitish spot around the base of the antennae; lunated spot at base each side of the tergum, &c. Smaller than mercatus F. and scutellaris nob. 1837.] 780 BOSTON JOURNAL MACROCERA Latr. 1. M. OBLIQUA. — Thorax with yellowish hair; tergum fasciate, second segment with an oblique band. Inhabits Indiana. Body black: head and stethidium with long, dull yellowish [404] hair: hypostoma and labrum yellow: antennae, excepting the basal joint, beneath piceous: mandibles yellow at base, with a piceous spot, honey-yellow in the middle and blackish at tip: wings slightly fuliginous; nervures dusky: tergum, first segment at base, with hair as on the thorax; second segmentywith a broad basal margin of whitish prostrate hair, and a narrow oblique one on the middle; third and fourth segments with oblique bands of the same color on their middles; fifth with the band obvious and a little oblique, intermixed with longer hairs. Length nearly three-fifths of an inch. I have numerous specimens, all of which are males. The hair of the head and thorax is slightly tinted with ferruginous. 2. M. BINOTATA.-Black; wings blackish. Inhabits Indiana. 9 Body black: head and thorax, particularly the latter, with short hair, that of the occiput and behind the scutel a little longer: labrum with prostrate hair: wings blackish violaceous: tergum on some parts, with a slight purplish reflection; fourth segment with a transverse-quadrate white spot of prostrate hair on each side, upon its posterior margin: posterior tibiae and tarsi, with the long hairs whitish. Length about nine-twentieths of an inch. % A little smaller than the female; nasus and labrum pale yellow; antennae beneath, dirty yellowish; wings not so dark as in the female; tergum immaculate. Although it has some points of specific similarity with the preceding, yet it differs so widely from it in other respects, that with much hesitation, I have concluded to give it a distinct place. [405] 3. M, PRUINOSA.-Tergum with much dilated white bands; double on the second segment; hair on the thorax yellowish. Inhabits United States. [Vol. I. OF NATURAL HISTORY, 781 % Body black: stethidium clothed with yellow-ferruginous hair: head, hair on the superior part like that of the thorax: nasus with a large, yellow, transverse spot before: labrum with prostrate whitish hairs, and generally an obscure yellowish, longitudinal line: antennae, rather short, beneath excepting the basal joints, dull piceous: wings hyaline: tergum, first segment, except at its tip, hairy like the thorax; second segment with a white band at base and another on the posterior submargin, united at the sides; posterior margin and transverse middle black; third and fourth segments white with black posterior margins; remainder white; tarsi ferruginous. Length two-fifths of an inch. 9 Antennae, color as in male: nasus immaculate: posterior feet with long ferruginous hair. Length nearly half an inch. A common species; at first sight somewhat like obliqua nob. which however is much larger, the bands of the tergum much narrower and more oblique than in the present species. In magnitude this species does not seem to differ widely from that which Drury names annularis ii. pl. 37, f. 7. That figure is, however, a very uncertain one, even as respects its genus, and in my copy of the work, does not at all agree with the description which accompanies it. The bands of the tergum have a pruinose appearance in consequence of the shortness of the hair of which they are composed. The antennae of the male do not reach the posterior extremity of the thorax. [406] 4. M. RUSTICA. — Tergum with white bands, double on the second segment; hair of the thorax whitish. Inhabits Indiana. S Body black, with whitish hair: antennae longer than the stethidium; beneath, excepting the three basal joints, dull piceous: nasus white: thorax with whitish hair: wing-scale black: wings hyaline; nervures fuscous: tergum, first segment, excepting at its tip, hairy like the thorax; bands white, not much dilated; second segment with one at base and another behind the middle, confluent each side; remaining segments with a band on the middle of each: tarsi towards their tips ferruginous. 1837.] 782 BOSTON JOURNAL Length under seven-twentieths of an inch.? Body much more robust; less hairy; but the bands of the tergum are rather wider, sometimes almost interrupted in the middle; hair of the posterior feet yellowish; antenna rather short; nasus black. Length nearly two-fifths of an inch. A smaller species than pruiosa and much like it; but it may be distinguished by the much longer antennae of the male, by the nasus being all white, and by the whitish or almost uncolored hair of the head and thorax. When recent, the color of the eyes is light blue, with three or four transverse, moveable series of longitudinal dark spots. MEGACHILE Latr. M. POLLICARIS. — Anterior tarsi dilated, deeply ciliated, appendage rather long; spines of the anterior coxae yellow. Inhabits Louisiana. Body not very hairy, black: wings with a slight fuliginous [407] tint, particularly at tip: tergum oblong sub-quadrate: anal segment with a sinus in the tip, each side of which are small inequalities of the edge: anterior feet, coxse with prominent yellow spines, rufous on the exterior tip; thighs yellow, black at tip and base; tibiae black, yellow within and at tip, on the posterior tip a very short, acute spine; tarsi much dilated and deeply ciliated behind, yellow-white, covered in their greatest part by a yellow broad scale, which is honey-yellow at tip; nails honey-yellow: intermediate tarsi cordate, the lobes of one side more prominent. Length eleven-twentieths of an inch. Mr. Barabino sent me this species. It differs in many respects from the Mi. latimanus nob. (Western Quarterly Reporter) which has in that species the anterior coxm black; the appendage of the anterior tarsi shorter, &c., but it is perfectly congeneric with it, as well as with Anthophora lagopoda Fabr., if I may judge by the similarity of the anterior feet, though it certainly approaches Steles in the paucity of ventral hair. The maxillary palpi of latimanus have the second joint rather longer than the first. [Vol. I. OF NATURAL HISTORY. I78 M. BREVIS. —Black; not remarkably hairy; anterior tarsi simple; abdomen short. Inhabits Indiana. $ Body black, somewhat polished: head densely covered with long, yellowish hairs in front: thorax with whitish hair. sometimes tinged with yellowish, and not concealing the surface: wings a little fuliginous, tinged with violaceous: renter not, or hardly longer than broad: tergum with small, dense punctures and a narrow, white band on each segment; anal segment transversely concave, at its tip emarginate, in the middle and on each side, [408] the edge has several small denticulations: anterior tarsi simple: tarsi piceous at their tips. Length less than two-fifths of an inch. y A little larger than the male; with very little hair on the front; abdomen short conic-oval; venter hairy. Length two-fifths of an inch. The male of this species closely resembles that of pagnattus so much so, that it might readily be considered as the same; but the anterior tarsi are not dilated, and the abdomen, although similarly terminated, is remarkably shorter. A. PUGNATUS.-Black; anterior tarsi dilated in the male, with the first joint prolonged at its anterior angle beyond the tip of the second joint. Inhabit Indiana. % Body black, not densely hairy: head densely covered with long whitish hairs in front: thorax with whitish hair not concealing the surface: wings fuliginous, tinged with violaceous; venter longer than broad: tergum with small, dense punctures; and a narrow white band on each segment; anal segment transversely concave, at its tip emarginate in the middle, and on each side the edge has several small denticulations: anterior tarsi whitish, dilated, and ciliated; anterior tip of the basal joint prolonged a little beyond the tip of the second joint, and its whole length excavated before; anterior tip of the second joint also prolonged almost to the tip of the third joint; fourth joint not dilated: anterior tibiae with dilated crowded punctures: anterior coxae, each with a prominent, black spine: intermediate and posterior tarsi piceous at tip. 1837.] 784 BOSTON JOURNAL Length over two-fifths to nearly half an inch. Frontal hair shorter and less conspicuous; anterior feet simple; venter with dense yellow hair. Length over half an inch. [409] It is smaller, much more slender and much less hairy than either latimanus, or pollicaris nob., and has a somewhat different habit. ANTHOPHORA Latr. 1. A. ABRUPTA.- % Black; thorax with cinereous hair; nasus and labrum whitish. Inhabits Indiana. Body robust: antennae on the anterior side of the basal joint, whitish: nasus, and each side of it to the eye yellowish, a little tinged with fulvous in the middle: labrum pale yellowish, hairy: mandibles having a whitish spot near their outer base: thorax, pleura and pectus, clothed with whitish cinereous hair: wings hyaline; nervures fuscous; stigma not at all dilated: pleura with an oblique line of black hairs passing downward and backward from the posterior wings: tergum with much shorter and less dense hair than that of the thorax, and black; that of the basal segment a little longer, and near the metathorax partaking of the color of the hair of that part: feet black; the longer hairs of the anterior pair are whitish. Length over half an inch. It is less robust than A. pilipes F. and is equally well clothed with hair on the anterior part of the body, but the transition of color between the hair of the thorax and that of the tergum is much more abrupt. It has much the appearance of a small humble-bee and also resembles Andrena thoracica F. 2. A. FRONTATA.-Thorax with yellowish hair; hypostoma and basal joint of the antenna beneath, and spot at base and near the tip of the mandibles, yellow. Inhabits Louisiana. [410] % Body black: hypostoma yellow and with yellow hair: antennae with the inferior longitudinal half of the basal joint yellow, and with dense yellow hair: nasus yellow, with yellow hair: labrum black, covered by the hair of the nasus: mandibles with [Vol. I. OF NATURAL HISTORY. 785 a yellow oval spot at base and a slender obsolete one near the tip: maxilla with an obsolete yellowish spot before the palpi: palpi with a few rigid hairs; terminal joint one-third the length of the preceding joint: tongue ferruginous: vertex in the middle, having a few yellow hairs: thorax with dense, long, yellow hair: wing-scale blackish: wings with a slight dusky tint; nervures black, exterior recurrent nervure entering the outer cubital cellule directly opposite to the outer nervure of the cellule: tergum hairy; hairs black, rather long; a few yellow hairs towards the middle of the first segment: anterior feet with yellow hair on the posterior edge: hind feet, hairs not much elongated. Length half an inch. Sent to me by Mr. Barabino. Differs from the abrupta nob., in being less robust, the hair of the thorax being pale yellow, and the mandibles having a white spot near their tips. 3. A. TAUREA.-Thorax pale, with a dusky central spot, from which proceed two lines to the anterior angles. Inhabits Indiana. Body black with whitish cinereous hair: head, hair on the vertex dusky: thorax with whitish hair; a large, obvious, central, dusky spot, with a line curving from it to each anterior angle of the thorax: scutel, hair dusky: metathorax and first segment of the tergum, with cinereous hair; remaining segments of the tergum with the hair very short and black, excepting on the posterior margins which are pure white: 9 ultimate segment with [411] a glabrous, subearinate, triangular, oblong space above: wings hyaline; nervures fuscous; stigma not suddenly dilated: terminal third of the radial cellule slightly separated from the edge of the wing; terminal nervure of the third cubital cellule inserted at the middle of the nervure of the radial cellule. Length $ about two-fifths; 9 half of an inch. The thoracic spot will readily distinguish this species. The manners and habits of the species may be likened to those of the A. parietina Latr. It digs a cylindrical hole in compact clay or adhesive earth on the side of a bank, orin earth retained amongst the roots of an overturned tree. The hole is two or three inches in depth. The sides and bottom are of a dark brown color, quite 1837.] 50 786 BOSTON JOURNAL smooth and somewhat polished, containing a quantity of white pollen, considerably larger than the artificer itself. The entrance consists of a cylinder extending downwards from the mouth of the hole, more than an inch in length, and consisting of small pellets of earth compacted together, very rough on the exterior and smooth within. A species of Odynerus was numerous in the same locality in which I observed the above, and sometimes entered the holes; but the exterior cylinder does not agree with that which is attributed to 0. muraria Latr. which Kirby and Spence inform us is composed of " little masses so attached to each other, as to leave numerous vacuities between them, which give it the appearance of filagree-work." Many of the tubes of the taurea, have a fissure above, throughout the whole length; resembling in this respect the shell Siliquaria. It does not agree with Fabricius' description of Melecta remigata. [412] XYLOCOPA Latr. X. CAROLINA Fabr.-This species was referred by Fabricius to the genus Centris, and is even now generally considered as belonging to that genus. But doubting the accuracy of that arrangement, I found on examination, that the labial palpi are rectilinear, the terminal joints being in a right line with the others, and the maxillary palpi are six-jointed. The] mandibles have only one large tooth, which is on the inner side. The circumstance of Fabricius referring to Drury's fig. I, pl. 43, of vol. i, for Bombus virgineus Linn., leads me to suppose that he had this species also in view in that description. But as that description in the Syst. Piez. p. 346, agrees very well with one of our largest and finest species of Bombus, rather than introduce a new name, I would transfer the quotation of Drury's figure to the description of X. carolina, (Centris), F. I add the following description of it, which I formerly drew out, with the name of valida, under the belief that the carolina, is really a Centris, and therefore altogether different. Blackish; a prominent, compressed, obtuse tubercle between the antenne; thorax hairy. Inhabits United States. 9 Body black, tinged with purplish: head with close set, [Vol. I. OF NATURAL HISTORY. 787 discoidal punctures; an obvious, compressed tubercle between the antennae, rounded at its tip: labrum conic: thorax tinged with greenish; with pale yellow hair, except on the middle: wings fuliginous, subopake at tip: tergum tinted with very obscure green: basal joint covered with pale yellow hairs: pleura beneath the wing, with yellow hairs. Length about four-fifths of an inch. [413] $; Nasus white. The tubercle of the head is very distinct. Common in the Union. The males may be distinguished by their larger and more approximate eyes and white nasus. It varies in having the hair of the thorax and of the first abdominal segment, almost ferruginous. 2. X. LATERALIS.-Violaceous; abdomen with a posterior lateral cinereous spot. Inhabits Mexico. S Body blackish-violaceous: head black: nasus and labrum white: antennae with an anterior white line on the radical joint: gene with a few gray hairs: wings, first recurrent nervure entering the third cellule within the distance of its own breadth from the nervure of intersection of the third cellule: abdomen, each side near the tip with a cinereous spot of hair, extending upwards on each side of the venter, but becoming obsolete towards the base. Length over seven-tenths of an inch, BOMBUS Latr. 1. B. SONORUS.-Yellow; head, thoracic band and abdomen behind black. Inhabits Mexico. Body yellow: head black: thorax with a broad black band in the middle: wings vtiolaceous-black: tergum with the first, second and third segments yellow, the others black: beneath black. Length 9 four-fifths of an inch, Resembles the fervidus Fabr. so closely that it may readily be mistaken for it, but that species has only two segments of the tergum clothed with yellow hair; that of [414] the second one, however, is so much elongated as to conceal a considerable por1837.] 788 BOSTON JOURNAL tion of the next segment. The color is a much deeper yellow than that of fervida. 2. B. EPHIPPIATUS.-Black; pleura and base of the tergum yellowish. Inhabits Mexico. Body black: pleura pale yellow: wings dusky, tinged with violaceous: tergum pale yellow towards the base; this color is gradually narrowed behind and terminates on the third segment, forming somewhat of a semioval, with its base to the thorax and confluent with the color of the pleura. Length less than half an inch. 3. B. TERNARIUS.-Yellowish; thorax fasciate; tergum fulvous in the middle. Inhabits Indiana. Head black: thorax with dull yellowish hair, and a blackish band on the middle: wings with a slight yellowish tinge; nervures fuscous: tergum fulvous on the second and third segments; first and fourth segments yellowish; remaining segments black. Length % nearly three-fifths of an inch. TRIGONA Jurine, Latr. 1. T. BILINEATA.- O Blackish; antennae, beneath, labrum and two lines on the nasus pale. Inhabits Mexico. Body piceous black; flagellum of the antennae beneath, obsolete narrow anterior orbits, two rather broad lines on the hypostoma, labrum and mandibles somewhat pale: wings hyaline, slightly tinged with fuliginous towards the base; cubital cellules obsoletely divided into three by two [415] hardly perceptible nervures; ultimate cellules hardly attaining to the tip of the wing; the second receiving the recurrent nervure: feet not different in color from the body; posterior tibiae with the ciliae of the edge sparse. Length less than one-fourth of an inch. It is somewhat smaller, and less robust than the ruficrus Latr. of which the posterior tibia are densely ciliated. I am indebted to Dr. Klug for a specimen of the ruficrus: and it is very different from the amalthea and spinipes Fabr, My specimens are [Vol. I. OF NATURAL HISTORY. 789 workers, and I did not find the nest or ascertain the kind and importance of the honey they make. The generic name is almost too much like Trigonia of Conchology, but as the pronunciation differs it can remain. 2. T. LIGATA.-O Blackish; abdominal segments margined with ochreous. Inhabits Mexico. Body brownish-black, hairy; antennae beneath, particularly the basal joint, anterior half of the anterior orbits, line distinguishing two lobes of the hypostoma and mouth, dull yellowish: wings slightly tinged with fuliginous, particularly towards the base; nervures of the cubital cellules like those of the bilineata nob., but the first one is much more distinct: tergum shortly hairy; posterior margins of the segments ochreous: feet dull honey-yellow; tip of the posterior tibiae and base of the first tarsal joint black. Length about two fifths of an inch. Of this I obtained but a single specimen, which is a worker. It is widely different from the preceding species, particularly in being hairy, and is much larger and of a somewhat different habit. I have carefully compared it with Latreille's descriptions and figures of Melipona [416] favosa Illig., scutellaris Latr., fasciata Latr., interrupta Latr., and other species as given in Humboldt's Zoological Observations; and even should it be referred to that genus notwithstanding its denticulated mandibles, I have endeavored to draw out such characters as may distinguish it from them. Latreille, however, says of Melipona, "Mandibles sans dentelures apparentes" which entirely includes this species, although it agrees in habit. 1837.] 790 ADDITIONS AND CORRECTIONS. ADDITIONS AND CORRECTIONS. Page 35, in note,for Weidmann readWiedemann. 57, line 6, for TERGIS[SA] read TERGIS[S]A. 94, after description of F. SCUTELLARIS, add: [A distorted specimen probably belonging to Platynus (Agonum) melanarius. Similar distortions are found in other species.-LEc. ] 98, line 7 from bottom, for Copdotomus read Coptotomus. 109, to note after E. OBESUS, add: at all approaching this species in size.-LEc.] 130, line 6 from bottom, for SP.RIDIUM read SPHIERIDIUM. 153, line 8, for AXTRICATA read EXTRICATA, 160, line 7 from bottom, for Ichnomera read Ischnometa. 176, line 21, for Errhinus read Erirhinus. 177, line 19, for CUCULIO read CURCULIO. 212, line 18 from bottom, for STIATA read STRIATA. 224, line 15, for Ciaceris read Crioceris. 230, line 7 from bottom, for PENICILLATUS read PENICELLATUS. 272, line 16, for Bydaticas read Hydaticus. 277, after description of C. JACTATA dele note, and add: [Belongs to Telephorus —LEc.] 301, line 11 from bottom, for primona read primoria. 475, line 4 from bottom, forfascidita readfastidita. 477, after description of F. DECORA, add: [Also a Platynus —LEc.] 518, line 17, for 15-PuncTATUS read 12-PUNCTATUTS. 525, line next to bottom, for Fabr. read Latr. 528, after remarks on C. BIPUSTULATA, add: [This is the insect afterwards considered by Dejean the same with the Brazilian C. crenata, but is known at present as Aspidoglossa subangulata.-LEc.] 584, line 8 from bottom, for T.faber read T. brunneus. 590, in line 22, add [158]. 637, line 6, for MARGINILIS read MARGINALIS. 664, line 6 from bottom, for MELITUS read MELLITUS. $72, to title in line 1, add May, 1836, and change the date at bottom of pages 673 —745, to 1836. INDEX TO VOLUME II. Abax coracinus 482, 539 Aeschna heros 388 Acaenitus decorus 702 janata 391 melleus 703 Junius 388 Acanthia interstitialis 248 multicincta 388 Acanthocerus aphodiodoides 653 obliqua 392 globosus 653 4-guttata 391 laevistriatus 653 stigmata 393 Acanthocinus quadrigibbus 665 vinosa 390 Acanthoderes quadrigibbus 665 Aethus bilineatus 242 Acheta exigua 238 Agabus ambiguus 511 Acilius mediatus 508 arctus 511 Acmaeodera ornata 592 erythropterus 509 pulchella 591 gagates 513 tubulus 592 infuscatus 511 Acordulecera dorsalis 672 nitidus 512 Acrydium flavovittatum 238 obtusatus 513 Actenodes acornis 593 seriatus 511 Acupalpus conjunctus 548 stagninus 513 consimilis 505 striatus 511 debilipes 548 striola 513 elongatulus 505 Agathidium pallidum 231 lugubris 504 Agathis polita 684 misellus 504, 548 ornata 684 obsoletus 549 Agonoderus lineola 465 partiarius 548 pallipes 466 pauperculus 505 Agrilus arcuatus 596 rotundicollis 504 bilineatus 596 tantillus 548 cogitans 598 testaceus 548 fallax 596 Adelocera aurorata 618 geminatus 105, 595 avita 620 granulatus 104, 596 brevicornis 618 lateralis 103, 596 discoidea 619 otiosus 597 impressicollis 620 politus 596 obtecta 618 pusillus 596 Adimonia externa 222 putillus 597 rufosanguinea 344 ruficollis 595 tuberculata 221 Agonum cupripenne 475 Adrastus quietus 623 errans 536 recticollis 109, 622 femoratum 476 Aepchna clepsydra 390 foveicolle 481 constricta 389 limbatum 536 fraterna 392 luctuosum 481, 536 furcillata 391 morosum 469 792 INDEX. Agonum nutans 536 Altica vians 225 obsoletum 536 uniguttata 229 8-punctatum 476 Alphitophagus bifasciatus 158 orbicolle 536 Alyson inelleus 762 palliatum 474, 536 oppositus 761 punctiforme 536 Amara angustata 463, 542 rufipes 481 avida 95 striatopunctatum 536 basillaris 463, 542 suturale 535 confinis 95 Agrion antennata 410 dolosa 542 anomalum 409 furtiva 543 apicalis 410 grossa 543 hastata 409 impunctata 542 venerinotatum 409 impuncticollis 463, 542 verticalis 408 indistincta 463 Agriotes mancus 111 lucidula 463 striatulus 111 luctuosa 483 truncatus Ill musculis 462, 541 Akis muricata 149 obesa 464, 542 Aleochara bilobata 589 sera 542 bimaculata 101, 585 Amblychila cylindriformis 89, 521 exigua 589 Amnestus spinifrons 243 falsifica 588 Amphasia fulvicollis 481 fasciata 585 interstitialis 481 fuscipes 585 Amphicrossus ciliatus 288 indenataa 586 Ampulex canaliculatus 750 lustrica 585 Anaphia 9 minima 585 pallida 10 nitida 588 Anaspis rufa 309 obscuricollis 585 4-punctata 164 propera 587 triloba 163 4-punctata 586 Anax Junius 389 semicarinata 587 cincticollis 534 simplicicollis 587 collaris 534 verna 588 Anchomenus coracinus 478 Aleodorus bilobatus 589 corvinus 477, 534 Allantus apicalis 676 decentis 534 bardus 678 decorus 477, 534 cestus 677 deplanatus 477 epicera 677 extensicollis 534 epinotus 676 gagates 478, 534 goniphorus 676 marginalis 477 pannosus 678 Ancylochira decora 594 Allecula nigrans 308 striata 594 obscura 308 ultramarina 594 Altica bimarginata 226 Ancyronyx variegatus 291 centralis 228 Andraena valida 772 ceracollis 669 Anisodactylus agricola 461, 545 crenicollis 668 baltimorensis 461, 545 gibbitarsa 225 caenus 462, 545 mellicollis 668 carbonarius 460, 545 nana 227 dilatatus 544 picta 228 laetus 545 5-vittata 227 luctuosus 460 senilis 228 merula 545 scripticollis 226 rusticus 460, 545 suturella 344 St. Crucis 461 triangularis 226 striatus 461 INDEX. 793 Anisodactylus tristis 460 Anthrax Oedipus 61 Anobium bistriatum 281 scripta 59 carinatum 120 Simson 60 gibbosum 280 Anthribus alternatus 314 notatum 281 bimaculatus 314 tenuestriatum 281 capillicornis 313 Anomala binotata 301 coffew 313 cincta 654 limbatus 314 gemella 654 lugubris 313 Anomalon attractus 696 notatus 312 densatus 698 4-notatus 313 divaricatus 699 tomentosus 315 ejuncidus 697 variegatus 314 emarginatus 699 Apate basillaris 181 hunmeralis 682 bicaudatus 180, 662 lineatulus 699 bicornis 180 mellipes 697 punctatus 320 recurvus 698 Apenes sinuata 440 Anomoglossus emarginatus 485 Aphanisticus gracilis 599 pusillus 486 Aphonus tridentatus 134 Anopheles crucians 39 Aphodius bicolor 136 ferruginosus 40 concavus 138 punctipennis 39 femoralis 139 5-fasciatus 40 innexus 651 Anoplitis scapularis 205 oblongus 138 Anteon tibialis 730 serval 651 Anthraxia quercata 595 strigatus 137 viridicornis 105, 595 tenellus 137 Anthicus basillaris 165 terminalis 137 bifasciatus 309 vittatus 295 bizonatus 310 Aphrophora bilineata 381 cervinus 310 obtusa 382 cinctus 165 parallela 382 collaris 311 quadrangularis 382 constrictus 309 4-notata 381 impressus 312 Apion rostrum 316 labiatus 311 Sayi 316 lugubris 310 Apocellus sphaericollis 571 pallidus 310 Aporosa rostrata 48 politus 310 Aradus 4-lineatus 249 terminalis 311 Araecerus coffeae 313 Anthocomus circumscriptus 119 Ardistomus viridis 451 flavilabris 279 Aretharea helluonis 524 scincetus 279 Arhopalus charus 664 terminalis 280 Asaphes bilobatus 611 Anthophagus brunneus 102 baridius 612 verticalis 578 decoloratus 617 Anthophora abrupta 784 hemipodus 612 frontata 784 memnonius 612 taurea 785 ruficornis 612 Anthrax analis 60 Asclera punticollis 161 alternata 61 ruficollis 160 caliptera 62 thoracica 161 edititia 353 Asida anastomosis 151 irrorata 61 opaca 150 lateralis 59 polita 151 limatulus 354 Asilus sericeus 63 morioides 58 vertebratus 62 794 INDEX. Ateuchus ebenus 134 Bembidium nitidulum 550 nigricornis 133 oppositum 501, 53. obsoletus 133 postremum 551 viridis 648 proximum 502 Athous aequalis 602 punctatostriatum 498, 549 discalceatus 604 rupestre 504 pyrrhicus 602 semifasciatum 552 vagrans 602 sigillare 499, 551 Atimia confusa 334 4-maculatum 501 tristis 334 stigmaticum 499 Atomacera cellularis 674 tetracolump 503, 551 debilis 674 troglodytes 503 Atomosia glabrata 66 tripunctatum 553 Atta fervens 734 ustulatum 504 Attagenus cylindricornis 290 variegatum 503 megatoma 290 Beris fuscitarsis 52, 353 spurcus 290 Berosus striatus 293 Attelabus pubescens 315 Bethylus cellularis 726 rhois 315 centratus 727 scutellaris 315 musculus 726 Aulonium parallelopipedum. 324 pedatus 727 Bibio albipennis 69 Babia 4-guttata 208 articulatus 69 B3ccha costata 357 heteropterus 69 fuscipennis 86 orbatus 69 B3tis arida 412 pallipes 68 interpunctata 411 Blaps acuta 152 obesa 412 aequalis 657 verticis 412 carbonaria 152 Eanchus aequatus 701 celsa' 657 fugitivus 701 extricata 153 nervulus 700 hispilabris 152 Bassus gibbosus 704 impolita 656 limitaris 703 maura 656 sanctus 703 obscura 152 Baridius interstitialis 177 obliterata 657 Batrisus riparius 236 obsoleta 153 Bdella oblonga 19 opaca 154 Belonuchus ephippiatus 563 parva 658 embex fasciata 75.1 ruida 656 longirostris 751 suturalis 152 Bembidium coxendix 97, 559 tricostata 154 insequale 97, 549 Blapstinus interruptus 155 inornatum 502 Bledius 100 affine 501 cordatus 577 antiquum 498 emarginatus 57.7 contractum 500 Boletobius angularis 580 decipiens 501 cincticollis 581 dorsale 499, 550 cinctus 102 ephippiatum 553 obsoletus 580 fallax 501 pygmaeus 580 flavicauda 502 venustus 580 honestum 498, 550 Boletophagus corticola 305 incurvum 554 Bombus ephippiatus 788 inornatum 502 sonorus 787 laevigatum 499, 550 ternarius 788 laevum 503 Boros unicolor 305 nigrum 500, 551 Bostrichus bicaudatus 181 INDEX: 795 Bostrichus bicornis 180 Buprestis geminata 105 exesus 317 geraniz( 5 9 fasciatus 318 gibbicollis 104, 591 pini 319 granulata 104 politus 318 hybernata 591 xylographus 318 ignara 597 Brachiacantha albifrons. 233 impedita 593 Brachinus alternans 630 lateralis 103 cyanipennis 91 liberta 590 fumans 439 longipes 106 stygicornis 527 lurida 590 Blrachycerus humeralis 316 obscura 391 Brachygaster reticulatus 682 ornata 592 Brachys gracilis 599 pulchella 591 ovata 598 6-guttata 103, 591 purpurea 599 tubulus 592 tesselata 598 ultramarina 594 Brachystylus acutus 174 virginica 590 Brachytarsus alternatus 314 viridicornis 105, 594 brevis 315 volvulus 592 limbatus. 314 Buthus 10 obsoletus 315 vittatus 11 tomentosus 315 Byrrhus alternatus 291 variegatus 315 Byturus unicolor 126 Bracon argutator 706 dorsator 705 Calandra compressirostris. 179 explorator 710 Calathus gregaria 472 hebetor 705 Calleida decora 440, 527 honestor 709 marginata 441, 526 inescator 709 purpurea 527 mellitor 708 smaragdina 527 paululor 709 viridipennis 441, 526 pectinator 704 CGepteryx sequabilis 405 populator 710 maculata 405 pullator 709 opaca 405 rugator 704 virginica 405 rugulosus 707 virgo 405 scrutator 707 Callidium amoenum 193 thoracicus 711 brevilineum 194 tibiator 710 cucujiforme 3.34 transversus. 708 discoideum 192 trilobatus 710 fulvipenna 194 vestitor 706 ignicolle 193 viator 710 pallidum 193 Bradycellus atrimedius 466 sexfasciatua 194 autumnalig 473 suturale 192 rupestris 505, 508 Callisthenes luxatus 96 vulpecilug 458 Calobata antennaepes 83 Bruchus discoideus 171 pallipes 84 Bryaxis dentatus 236 Caloptenus bivittatus 238 Buprestis acornis 592 femoratus 23.8 atropurpure.A 103 Calosoma calidum 491, 529 campestris 106 externum 97 confluens 103 laeve 529 culta 592 longipenne 96 cyanipes 106 luxatum 96, 529 dentipes 591 obsoletum 95 divaricata 105, 590 scrutator 491 796 INDEX. Calyptocephalus bifarius 635 Cecidomyia destructor 4 Camptorhina atricapilla 144 Centronipus calcaratus 303 Campylomyza scutellata 44 rufipes 304 Cantharis angulatus 117 Cerambyx solitarius 191 basillaris 117 Ceraphron armatus 724 bidentata 278, 637 destructor 6 bilineatus 118 stigmatus 724 fraxini 118 Ceratina dupla 775 invalida 635 Ceratopogon scutellatus 349 jactata 277 Cerceris fumipennis 762 laticornis 278 sexta 763 ligata 276 Cercopis bicincta 381 lineola 277 obtusa 256 modestus 116 quadrangularis 256 nigricornis 169 Cercus niger 124 parallela 277 pallipennis 124 percomis 636 Cercyon 294 rotundicollis 276 apicale 131 rufipes 118 Cermatia coleoptrata 29 scitula 278 Ceropales apicalis 750 tomentosa 275 interrupta 750 tricostata 635 Cerylon castaneum 321 Canthon ebenus 134 Cetonia barbata 140 nigricornis 133 inda 141 obsoletus 133 vestita 301 viridis 648 Chalcis amoena 719 Carabus carinatus 529 debilis 720 depressus 449 Chalcolepidius viridipilis 600 externus 529 Chalcophana picipes 211 furcatus 465 Chalcophora liberta 590 Goryi 494 virginica 590 interruptus 493, 528 Chauliognathus marginatus 277 ligatus 529 Chelifer muricatus 11 limbatus 493 oblongus 12 lineatopunctatus 494, 589 Chelonus basillaris 716 pallipes 465 parvus 715 serratus 494, 529 sericeus 716 sylvosus 492 Chelymorpha cribraria 207 vinctus 403, 528 Chironomus devinctus 349 Cardiophorus cardisce 604 festivus 41 convexus 110 geminatus 42 curiatus 609 glaucurus 42 erythropus 109 lineatus 42 Carpophilus brachypterus 289 lineola 42 floralis 124 lobifer 41 niger 125 modestus 41 pallipennis 124 stigmaterus 42 unicolor 288 tsenionotus 349 Casnonia pennsylvanica 447 Chlenius aestivus 484 rufipes 524 circumcinctus 531 Cassida bivittata 207 cobaltinus 484 cribraria 207 congener 484 erythrocera 341 elegantulus 486, 531 unipunctata 206, 666 emarginatus 485 Catops basillaris 124 impunctifrons 486 opaca 289 laticollis 486 simplex 289 lithophilus 485 vittatus 347 nemoralis 487 INDEX. 797 Chlaenius pensylvanicus 487 Cicindela marginalis 429, 523 pubescens 488 marginata 428, 522 pusillus 485, 531 micans 435 sericeus 483 obliquata 423, 522 soccatus 532 obscura 429 solitarius 487 obsoleta 91 tomentosus 483, 531 pulchra 91 vicinus 488 punctulata 431 vigilans 531 purpurea 429, 523 virens 531 pusilla 2, 433 viridanus 485 repanda 522 Chlorion canaliculatum 750 rugifrons 429 Chlorops proximus 730 scutellaris 89 Choeridium capistratum 132 6-guttata 425, 523 Chrysis carinata 731 signata 2, 428, 522 Chrysobothris dentipes 591 tristis 430 hyberhata 591 unicolor 522 sexguttata 104, 591 unipunctata 424, 522 sexsignata 591 variegata 428, 522 ultramarina 594 violacea 434, 523 Chrysomela barda 667 vulgaris 422, 522 basillaris 217 Cinetus mellipes 756 dissimilis 217 Cistela amoena 158 flavomarginata 218 atra 307 formosa 217 basillaris 158 hybrida 216 brevis 158 multipunctata 216 erythroptera 158 auripennis 217 fraterna 159 obsoleta 217 obscura 308 cenruleipennis 342 sericea 159 polygoni 342 Clerus humeralis 122, 640 spiraeae 342 nigrifrons 121 trivittata 343 nigripes 122 Chrysopa euryptera 414 oculatus 639 oculata 414 pallipennis 283 Chrysops 4-vittatus 54 4-signatus 638 Chrysotus abdominalis 362 rosmarus 121 concinnarius 361 sanguineus 639 nubilus 361 trifasciatus 283 Cicada aurifera 252 undatulus 639 dorsata 252 unifasciatus 284 hieroglyphica 371 Clivina bipustulata 450, 528 marginata 251 globulosa 452 parvula 253 lineolata 451 pruinosa 251 pallida 452 rimosa 372 pallipennis 453 synodica 253 4-maculata 528 vitripennis 372 rostrata 451, 528 Cicindela 419 rufescens 452 abdominalis 434 sphaericollis 452 albohirta 2, 424 viridis 451 10-notata 1, 432 Clypeaster fasciatus 320 dorsalis 1, 426, 522 Clytus annosus 334 12-guttata 523 caprea 200, 664 formosa 1, 432 charus 664 fulgida 90 confusus 333 hirticollis 2, 423, 522 hamatus 200 limbata 90 supernotatus 200 798 INDEX. Clythra mucida 666 Colymbetes gutticollis 556 4-guttata 208 interrogatus 557 Cnemidotus 15-punctatus 518 Maccullochii 508 Coccinella abdominalis 233 nigricollis 272 albifrons 233 nitidus 511 binotata 346 obtusatus 513 bioculata 233 seriatus 511 bipunctata 233 stagninus 513 cacti 671 tseniolis 556 dentipes 671 venustus 98, 512, 557 humeralis 234 Conops marginata 73 labiculata 232 nigricornis 74 lugubris 232 sagittaria 73 lunatomaculata 232 tibialis 363 mali 232 Conurus cinctulus 583 munda 670 crassus 582 notans 346 Copelatus 10-striatus 513 parenthesis 232 glyphicus 513 15-punctata 232 Copris anaglypticus 131 tibialis 233 colonica 649 tridens 232 histeroides 132 20-maculata 234 incerta 649 undulata 231 procidua 650 pullata 346 quadridens 650 normata 346 triangularis 132 proba 347 Coproporus ventriculus 583 Coeliodes acephalus 173 Coptera polita 728 Coelioxys alternata 778 Coptotomus interrogatus 98, 512, 557 8-dentata 777 serripalpus 558 Ccelomera coryli 220 Copturus oculatus 172 Colaspis aterrima 212 operculatus 173 convexa 212 Cordulia obsoleta 402 10-notata 213 tenebrosa 395 denticollis 215 Corduligaster fasciatws 392 dubiosa 214 Cordylura qualis 366 favosa 214 Corethra punctipennis 43 interrupta 215 Coreus alternatus 243 ovata 211 armiger 244 pallida 211 lateralis 245 picipes 211 ordinatus 244 praetexta 211 Corixa alternata 251 puncticollis 212 interrupta 250 6-notata 213 Corthylus fasciatus 318 striata 212 Corticaria 8-dentata 183 4-notata 213 Corymbites pyrrhos 602 Colastus semitectus 288 sulcicollis 602 Colletes inaequalis 770 hamatus 605 Colydium bipunctatum 183 fallax 606 lineola 324 vernalis 607 longiusculuim 324 hieroglyphicus 607 parallelopipedum 324 Crabro arcuatus 759 Colymbetes ambiguus 510 confluens 758 bicarinatus 512 Cratacanthus pensylvanicus 544 calidus 508 Cratonychus 621 discolor 511 corticinus 113 erythropteius 509 Cratoparis lugubris 313 fpnestralis 509, 557 Crypticus obsoletus 155 glyphcic-s 512 Cryptobium bicolor 570 INDEX. 799 Cryptobium cinctum 570 Cychrus unicolor 490 latebricola 570 Cymatodera bicolor 282 Cryptocephalus abdominalis 208 inornata 638 nigricornis 208 longicollis 283 fasciatus 209 undulatus 283 punctipes 209 Cymindis complanata 446, 526 femoratus 210 decora 440 recurvus 210 laticolis 526 bivittatus 210 pilosa 442, 526 confluens 210 platicollis 526 4-maculatus 210 pubescens 442, 526 Cryptohypnus abbreviatus 113 purpurea 441 choris 608 pustulata 440 dorsalis 108, 608 sinuata 440 pectoralis 608 viridipennis 441 silaceipes 113 Cyphon discoideas 272 Cryptops hyalina 30 ovalis 272 postica 31 ruficollis 273 6-spinosa 30 Cytilus varius 291 Cryptorhynchus oculatus 172 operculatus 172 Dacne heros 126 Cryptus calipterus 690 Daptus incrassatus 544 cestus 690 Dasypogon abdominalis 64 conquisitor 689 argenteus 65 discitergus 689 cepphicus 354 ductilis 690 cruciatus 66 grallator 692 politus 65 inquisitor 690 6-fasciatus 64 micropterus 694 trifasciatus 64 nuncius 693 Dasytes 637 orbus 688 Dectes spinosus 330 pleurivinctus 691 Delphax tricarinata 255 subclavatus 693 Dendrophilus punctul:tus 270 tenellus 690 Dexia analis 367 Ctenophora abdominalis 45 vertebrata 366 fuliginosa 44 Dermestes marmoratus 126 Cucujus biguttatus 326 Diabrotica tricincta 222 modestus 327 Diaperis bifasciata 158 Culex damnosus 40 excavata 157 punctipennis 39 Dicaelus chalybceus 533 5-fasciatus 39 dilatatus 489 taeniorhyncus 40 elongatus 489, 533 triseriatus 40 furvus 533 musicus 348 ovalis 533 Cupes cinerea 643 purpuratus 488, 533 concolor 644 sculptilis 489 trilineata 644 splendidus 489 Cuirculio acutus 173 violaceus 489 auricephalus 173 Dicerca divaricata 106, 591 Cuterebra noxialis 37 lurida 590 Cybister dissimilis 506 obscura 591 fimbriolatus 506 Dicrepidius soleatus 613 Cyclonotum exstriatum 647 binus 615 Cydnus bilineatus 242 Didymops Servillei 395 spinifrons 242 Dilophus orbatus 70 Cychrus bilobus 490 spinipes 71 elevatus 490 stigmaterus 70 stenostomus 490 stygius 352 800 INDEX. Dilophus thoracicus 71 Eburia 4-geminata 333 Dioctria 8-punctata 63 Ecyrus dasycerus 329 Diopsis brevicornis 3 Edrotes rotundus 149 Diozodes pallida 193 Elaphidion mucronatum 202 Dipolepis armatus 716 Elaphrus cicatricosus 530 impatiens 717 fuliginosus 529 pedatus 717 riparius 496 5-lineatus 716 ruscarius 497, 530 stigmatus 717 Elasmocerus terminatus 638 Diplotaxis carbonaria 299 Elater abbreviatus 112 frondicola 300 abruptus 600 liberta 299 acanthus 615 sordida 299 agonus 606 testacea 300 apicatus 605 Discocephala abdominalis 64 areolatus 108 rufiventris 64 armus 606 Ditoma 4guttata 326 attenuatus 600 Dolichopus abdominalis 362 auripilis 112, 602 cupreus 76 auroratus 618 cuprinus 76 avitus 620 femoratus 76 baridius 612 obscurus 75 basilaris 111 patibulatus 76 bellus 108, 614 sipho 75 bilobatus 610 unifasciatus 75 binus 614 Donacia aequalis 202 bisectus 113, 614 confluens 340 cardisce 604 metallica 338 choris 608 quadricollis 337 cinereus 621 pusilla 339 circumscriptus 614 rufa 339 claricollis 616 subtilis 338 clypeatus 628 sulcicollis 339 communis 622 Dorcaschema alternatum 188 convexus 110, 603 nigrum 331 corticinus 113, 621 Dorcus brevis 303 cucullatus 613 parallelus 146 curiatus 609 Dorcatoma simile 642 cylindriformis 114, 601 Dorthesia fasciata 162 decoloratus 617 flavicornis 162 dilectus 613 Doryphora 10-lineata 218 discalceatus 604 3-maculata 219 discoideus 619 Dryobius 6-fasciatus 195 discoideus 599 Dytiscus biguttulus 510 dorsalis 108, 608 bimarginatus 556 ectypus 601 calidus 508 erythropus 109 confluens 554 extriatus 614 fimbriolatus 506 fallax 605 habilis 555 fenestratus 609 liberus 271 finitimus 616 mediatus 507 fissilis 621 Ooligbukii 555 geminatus 614 tSeniolis 508 hamatus 605 thoracicus 272 hemipodus 612 verticalis 506 hieroglyphicus 607 impressicollis 620 Ebaeus apicalis 280 inflatus 609 pusillus 279 insipiens 622 INDEX. 801 Elater inquinatus 611 Engis heros 125 lcevigatus 600 4-maculata 645 lepturus 619 Enoplium damicorne 641 limbalis 601 dislocatum 284 linteus 114, 603 distrophum 284 lobatus 114, 610 laticorne 641 mancus 111, 603 marginatum 120 marmoratus 618 oculatum 639 memnonius 611 4-punctatum 120 mendica 610 thoracicum 120 morio 600 Epeolus fumipennis 779 muscidus 624 Ephebus limbatus 348 nigricollis 114 Ephemera hilaris 413 obesus 109, 603 Ephydra hians 371 oblessus 599 Epicaerus imbricatus 178 obliquus 610 Epierus nigrellus 264 obtectus 618 Epph&nis canaliculatus 625 operculatus 618 Epitheca cynosura 403 pectoralis 608 semiaquea 403 pennatus 619 Epomis tomentosus 483 pertinax 623 Epophthalmia cinnamomea 395 piceus 600 Epuraea rufa 287 pyrrhos 602 Erioptera caliptera 44 quietus 622 caloptera 44 rectangularis 620 Eriphus discoideus 192 recticollis 109, 611, 622 ignicollis 193 rubricollis 115, 601 suturalis 183 sanguinipennis 115, 609 Erirhinus constrictus 176 scapularis 615 Eristalis trifasciatus 359 semivittatus 113, 603 Eros canaliculatus 632 soleatus 612 coccinatus 633 sulcicollis 602 humeralis 633 tenax 623 marginellus 633 triangularis 110, 628 modestus 633 unicolor 624 mundus 633 vernalis 607 obliquus 634 vespertinus 613 sculptilis 633 viridanus 603 Erotylus hispidus 348 viridipilis 600 4-punctatus 669 viridis 602 Erythraeus mamillatus 16 Elmis cinctus 291 Evarthrus constrictus 94 4-notatus 292 heros 93 Eleodes 152, 656 sigillatus 469 Emathion atropos 626 unicolor 467 frontosus 625 Eucnemis amoenicornis 628 Embaphion muricatum 150 atropos 626 Emphytus platycerus 680 calceatus 626 recens 680 clypeatus 628 semicornis 680 cylindricollis 627 tarsatus 679 frontosus 625 Empis cilipes 83 heterocerus 624 5-lineata 82 humeralis 628 scolopacea 83 muscidus 624 Enoyclops ceruleus 336 obliquus 626 pallipes 336 quadricollis 624 Endomychus biguttatus 234 ruflcornis 625 lineatus 347 triangularis 628 Engis confluens 125 unicolor 624 51 802 INDEX. Euderces pini 201 Feronia lucublanda 478 Eulophus basalis 721 maculifrons 93 dicladus 721 moesta 468 hircinus 722 morosa 470 Eumolpus barbatus 341 musculis 462 crypticus 215 muta 470 hirtus 341 nutans 476 pini 341 obesa 464 Eumorphus angulatus 347 oblongonotata 539 distinctus 347 obsoleta 481, 537 Euparia strigata 137 obscura 538 Eupogonius vestitus 332 ochropeza 478 Eurychora insequalis 655 8-punctata 476 Eurydactylus tomentosus 483 pallipes 465 Euryderus zabroides 544 parmata 474 Euryptychus heterocerus 624 permunda 540 Eurytoma orbiculata 720 placida 469 studiosa 721 punctiformis 481 Eurytrichus agilis 458 recta 481 terminatus 473 relicta 468 Eusattus reticulatus 148 rugicollis 468 Eustrophus tomentosus 305 scutellaris 94 Euschides opaca 151 sigillata 468 polita 151 stygica 467 submarginata 470 Falciger acephalus 173 superciliosa 92, 468 Falagria bilobata 590 tartarica 469 Feronia adoxa 472 terminata 473 angustata 463 tristis 472 atrimedea 466 ventralis 471 autumnalis 473 vidua 469 basilaris 462 unicolor 467 caudicalis 480 Figites impatiens 718 chalcites 479 mellipes 718 cincticollis 476 Flata bivittata 255 complanata 470 bullata 375 convexicollis 475, 537 conica 373 constricta 94, 540 humilis 376 coracina 539 nava 373 cupripennis 474 opaca 374 decens 477 pallida 374 decora 477 pruinosa 373 deparca 539 quinquelineata 375 errans 94 stigmata 255 extensicollis 478 Formica dislocata 733 fastidita 475 imparis 732 gregaria 472 lauta 731 heros 93 mellea 731 honesta 475 sessilis 732 hypolithos 482 subsericea 734 impunctata 471 triangularis 733 impuncticollis 463 Formicaleo gratus 413 interstitialis 480 obsoletus 413 limbata 473 Fornax calceatus 627 lineola 464 cylindricollis 628 longicornis 466 Fulgora sulcipes 254 lucidula 482 luctuosa 480 Galerita americana 446 INDEX, 803 Galerita Janus 446 Halictus ligatus 774 Galleruca attenuata 222 nigricornis 772 atripennis 224 parallelus 775 atriventris 224 purus 773 cava 668 radiatus 772 circumdata 221 Haliplus 12-punctatus 518, 561 coryli 220 triopsis 518 discoidea 221 Harpalus agilis 458 decorata 223 agricola 461 dorsata 221 assimilis 459 externa 222 amputatus 546 lepida 667 badius 457 longicornis 223 baltimorensis 461 meraca 334 bicolor 455 Olivieri 223 ceonus 461 puncticollis 222 caliginosus 454 4-maculata 223 carbonarius 460 rufosanguinea 343 compar 456 tricincta 221 dichrous 546 tuberculata 280 erraticus 455 Gamasus antennaepes 17 faunus 457 juloides 18 faunus 455 musculus 17 herbivagus 457 nidularius 17 hylacis 459 spinipes 17 iricolor 546 Gambrinus armus 606 iripennis 458 Gaurotes cyanipennis 200 mexicanus 546 Geophilus attenuatus 31 nigripennis 458, 545 rubens 31 obscuripennis 545 Geopinus incrassatus 544 ochreatus 546 Geotrupes excrementi 135 opalinus 459 filicornis 136 paradoxus 461 Glycia purpurea 441 pensylvanicus 455, 446 Glyptoscelis hirtus 341 rusticus 460 Gomphus fraternus 393 similis 457 stigmatus 394 terminatus 546 Gonia frontosa 365 viridis 459, 546 Gonyleptes ornatum 15 viridieneus 459 Gorytes phaleratus 752 vulpeculus 458, 545 Gryllus sequalis 237 Heedychrum obsoletum 730 bivittatus 237 speculum 730 nubilus 238 Hegeter punctatus 655 Gynacantha quadrifida 392 Helodesfragilis 273 Gynandropus americanus 459 marginicollis 273 hylacis 459 obsoleta 218 Gyrinus americanus 519, 562 ruficollis 273 analis 520, 562 trivittata 343 emarginatus 519 Helomyza 5-punctata 86 limbatus 520 Helophorus lineatus 128 obtusus 562 Helops aratus 307 parcus 562 cisteloides 306 vittatus 562 politus 306 Gyrohypnus assimilis 568 pullus 306 consentaneus 568 tenuicollis 306 Gyrophaena dissimilis 586 tenebrioides 156 vinula 586 Hemicrepidius Thomasi 612 Henous confertus 167 Halictus labrosus 773 texanus 167 804 INDEX. Hetaerina americana 407 Hydnocera pallipennis 283 Heterocerus pallidus 127 punctata 284 pusillus 128 serrata 283 Heterophaga rufinasus 659 unifasciata 284 Hetoemis cinerea 331 verticalis 641 Hippodamia lunatomaculata 232 Hydrachna triangularis 22 parenthesis 232:Hydrium cevigatum 499 15-punctata 233 Hydrobius subcupreus 293 Hispa atricornis 666 Hydrocanthus atripennis 561 collaris 206 iricolor 517 cyanea 206 Hydrochares obtusatus 130, 646 flavipes 206 Hydrophilus castus 645 incequalis 206 exiquus 293 lateralis 204 exstriatus 646 obsoleta 205 fuscus 647 pallida 205 lateralis 130 rosea 205 mergus 646 scapularis 205 nimbatus 130 Hister oequalis 269 obtusatus 129 alternatus 270 rotundus 292 arcuatus 262 striatus 292 bifidus 262 subcupreus 293 bimaculatus 264 triangularis 128 carolinus 269 Hydroporus afinis 517 conjunctus 265 bifidus 558 depurator 261 catascopium 99 fraternus 266 dichrous 560 frontalis 266 discicollis 560 immunis 261 fasciatus 515 indistinctus 263 interruptus 99, 516, 560 mancus 267 lacustris 516 memnonius 261 nanus 517 nigrellus 264 nudatus 559 obliquus 264 niger 515 palmatus 267 oppositus 515 parallelus 268 proximus 515 punctulatus 269 parallelus 98, 516 sedecimstriatns 263 pubipennis 515 sordidus 269 pulicarius 516 subrotundus 265 punctatus 558 transversus 270 sericatus 559 vernus 266 velutinus 515 Hololepta mqualis 271 undulatus 99, 515 fossularis 271 Hylaeus modestus 771 Homalota exigua 589 Hylecoetus lugubris 642 indentata 586 Hylesinus aculeatus 181 minima 589 Hylochares nigricornis 107 Hopliaprimoria 301 Hylotoma calcanea 673 trifasciata 301 scutellata 673 tristis 301 Hylurgus dentatus 319 Horia sanguinipennis 166 Hyperaspis elegans 232 Hybos thoracicus 68 normata 346 Hydaticus bimarginatus 556 proba 347 brunnipennis 272 Hyphydrus punctatus 558 fulvicollis 556 liberus 272 Jassus acutus 382 meridionalis 508 clitellaria 384 Hydnocera humeralis 122 immistus 382 INDEX. 805 Jassas inimicus 382 Lachnosterna lanceolata 142 irroratus 384 longitarsa 142 novellus 384 tristis 143 olitorius 385 Lacon rectangularis 620 sanctus 383 Laemophlceus biguttatus 327 seminudus 383 modestus 660 subbifasciatus 385 Lagria 327 verticis 383 Lamia aculifera 186 Ichnea laticornis 641 alpha 329 Ichneumon suturalis 685 aspersa 187 malacus 685 dasycerus 328 morulus 685 faceta 329 otiosus 686 6-guttata 328 brevicinctor 686 macula 327 parata 686 spinosa 330 comptus 686 Lampyris angulata 273 navus 687 bifaria 635 devinctor 687 centrata 274 duplicatus 688 nigricans 115 residuus 688 pyralis 274 Ilybius fenestralis 510 reticulata 274 Imatidium cyaneum 207 ruficollis 273 t 17-punctatum 207 scinctillans 275 Ips bipunctatus 183 trilineata 634 confluens 125, 644 Languria puncticollis 225 Dejeanii 125 simplicicollis 670 sepulchralis 125 3-fasciata 225 obtusa 644 Laphria fulvicauda 66 4-maculata 645 glabrata 66 4-signata 644 macrocera 67 vittata 645 saniosa 355 Isarthrus spretus 627 sericea 67 Ischnomera carinata 160 tergissa 67 Ischyrus 4-punctatus 670 Larra aurulenta 755 Isomira sericea 159 Lathridius pubescens 325 Julus annulatus 25 8-dentatus 183 impressus 24 Lathrobium armatum 568 lactarius 25 bicolor 570 marginatus 26 cinctum 569 punctatus 24 confluens 571 pusillus 26 dimidiatum 570 Ixodes annulatus 19 millepunctatum 571 crenatus 20 similipenne 568 erraticus 20 sphaericolle 570 fuscus 22 Lebia analis 445, 527 orbiculatus 20 atriventris 443 punctulatus 21 axillaris 445 scapularis 21 fuscata 527 variabilis 21 ornata 444, 527 platicollis 445 Laccophilus fasciatus 514 tricolor 442 maculosus 514, 558 viridis 445, 527 proximus 514 vittata 443 Lachnocrepis parallela 533 Leia bivittata 351 Lachnosterna balia 298 Lema collaris 203 ephilida 298 melanocephala 340 hirsuta 143 trilineata 203 hirticula 143 trivittata 203 806 INDEX. Leptis albicornis 56 Libellula Lydia 395, 397 basilaris 55 maculata 397 fasciata 56 maculiventris 402 fumipennis 56 obsoleta 402 ornata 54 polysticta 402 plumbea 56 pulchella 396 punctipennis 55 quadrupla 398 quadrata 55 rubicundula 400 rufithorax 56 semicincta 401 vertebrata 56 semifasciata 397 Leptogaster annulatus 68 simplicicollis 401 histrio 68 tenebrosa 395 Leptostylus aculifer 186 tenera 403 commixtus 328 tenuicincta 404 6-guttatus 328 ternaria 396 macula 328 transversa 394 Leptotrachelus dorsalis 447, 525 trimaculata 396 Leptura bicolor 197 versicolor 399 bivittata 195 vesiculosa 399 cerulea 336 Ligyrus relictus 297 cylindricollis 196 Limnobia cinctipes 47 lineola 991 fasciapennis 45 lugubris 198 humeralis 47 nigrella 335 livida 349 8-notata 197 macrocera 46 proxima 198 rostrata 47 pubera 336 tenuipes 46 4-punctata 198 Limnochares extendens 22 rubrica 197 Limonius agonus 607 ruficollis 199 armus 606 scalaris 335 auripilis 112, 602 sphlericollis 336 basillaris 112 stictica 198 cylindriformis 114, 601 Leptus aranea 23 ectypus 602 hispidus 23 Liopus alpha 329 Lestes basalis 407 aspersus 187 eurinus 407 facetus 330 rectangularis 406 spinosus 330 undulata 406 Liparus imbricatus 178 Lethus spinipes 767 sulcirostris 178 Leucospis fraterna 718 tesselatus 178 Libellula acuta 399 vittatus 177 axilena 398 Lissomus extriatus 614 basalis 398 Listroderes caudatus 175 Berenice 399 Litargus didesmus 322 bifasciata 396 6-punctatus 322 coerulans 402 Lithobius spinipes 28 carolina 394 Lithocharis confluens 572 chlora 404 corticinus 571 cynosura 403 Lithodus humeralis 317 domitia 404 Lobiopa 6-maculata 285 eponina 398 Lonchcea polita 371 exusta 402 Lophoglossus tartaricus 470 ferruginea 401 Loxandrus rectus 482, 534 hymenea 394 Loxocera cylindrica 84 imbuta 404 Lucanus brevis 303 Leda 397 lentus 302 luctuosa 398 parallelus 146 INDEX. 807 Lucanus placidus 302 Malachius terminalis 280 Ludius abruptus 600 tricolor 119 attenuatus 600 vittatus 119 Luperus meraca 344 Mallodon cilipes 185 Lycoperdina ferruginea 348 dasystomus 184 vestita 348 simplicicolle 185 vittata 347 Malthinus marginalis 637 Lyctus geminatus 323 latipennis 637 hematodes 323 Manticora cylindriformis 89 reflexus 322 Matus bicarinatus 512 Lycus canaliculatus 632 Medeterus lateralis 362 modestus 631 punctipennis 362 obliquus 632 Megacephala carolina 522 sanguinipennis 116 Megachile brevis 783 terminalis 116 pollicaris 782 Lyda ochreata 682 pugnatus 783 Lygaeus bicrucis 246 Megalostylus laticollis 482 eurinus 247 Megatoma ornata 290 5-spinosus 247 Melanactes morio 600 reclivatus 245 Melanophila appendiculata 106 trivittatus 1246 atropurpurea 103 Lyrops argentata 754 longipes 106 aurulenta 755 Melasis nigricornis 107, 599 peptica 754 piceus 631 subita 755 ruficornis 107, 625 triloba 755 Meloe angusticollis 166 Lytta senea 168 conferta 167 albida 170 Melolontha aphodioides 653 articularis 170 balia 297 ferruginea 167 binotata 301 immaculata 170 10-lineata 145 luteicornis 170 ephilida 298 maculata 167 frondicola 299 Nuttalli 168 hirsuta 142 polita 169 hirticula 143 reticulata 170 integra 654 segmentata 169 iricolor 144 sphsericollis 168 lanceolata 142 liberta 299 Machilis variabilis 7 longitarsa 141 Macrocera binotata 780 moesta 298 obliqua 780 pilosicollis 143 pruinosa 780 sericea 144 rustica 781 sordida 299 Macronychus glabratus 292 tristis 143 variegatus 291 unifasciata 300 Macrotelus terminatus 638 vespertina 143 Madarus undulatus 177 Melophagus depressus 88 Magdalinus armicollis 175 Membracis arquata 380 Malachius apicalis 279 belligera 380 bipunctatus 119 calva 376 circumscriptus 119 festina 377 cceruleus 279 goniphora 377 flavilabris 279 inornata 378 nigriceps 119 marmorata 379 nigripennis 119 mera 379 pusillus 279 4-vittata 379 scincetus 279 semicrema 376 808 INDEX. Membracis subulata 378 Mutilla vigilans 739 tartarea 376 Myas coracinus 483, 540 vau 378 cyanescens 483, 540 Meria collaris 748 Mycetina vittata 347 costata 747 Mycetophagus didesmus 322 marginata 747 flexuosus 321 Merodon barda 358 punctatus 321 Mesembrina pallida 366 6-punctatus 322 Metachroma interruptum 215 Mycetochares basillaris 159 quercatum 214 fraterna 159 Methoca bicolor 741 Mycetophila discoidea 351 Metonius ovatus 598 ichneumonea 43 purpureus 599 nubila 351 Microgaster bistigmata 714 Mycetoporus lepidus 581 calliptera 714 Myodes fasciatus 162 carpata 714 flavicornis 162 congregata 713 Myopa biannulata 72 ensiger 711 longicornis 72 mellipes 712 stylata 73 xylina 712 vesiculosa 72 zonaria 714 Myochrous denticollis 215 Micropeza pallipes 84 Myrmeleon gratus 414 Microrhagus humeralis 629 roseipennis 414 triangularis 111, 628 Myrmica corrugata 735 Microrhopala collaris 206 dimidiata 737 Milesia barda 357 inflecta 736 Mictis alternatis 244 lineolata 734 Miltogramma trifasciata 365 minuta 738 Molorchus bimaculatus 202 molesta 737 mellitus 626 opposita 736 Monilema annulatum 187 Myzia pullata 346 inaequale 663 15-punctata 232 Molosoma latipes 578 Myzine hamatus 742 Monocrepidius bellus 109, 614 subulatus 743 dorsalis 108 dilectus 613 Nacerdes melanura 660 bisectus 113, 614 Nausibius dentatus 325 lividus 114 Nebria pallipes 494 lobatus 114 Necrophorus orbicollis 184 vespertinus 614 Nematus integer 679 Monophylla terminata 638 longicornis 679 Mordella attenuata 308 vertebratus 678 bidentata 164 Nemognatha atripennis 171 hilaris 661 immaculata 3 marginalis 165 minima 171 oculata 661 Nemoletus pallipes 52 4-punctata 164 polyposus 356 scapularis 164 Nitidula brachyptera 288 serval 662 geminata 287 triloba 164 8-maculata 287 trifasciata 308 rufa 286 Morio Georgiae 453 semitecta 288 monilicornis 454 6-maculata 285 Mutilla contracta 738 undulata 286 erythina 740 unicolor 288 gibbosa 741 unilineata 287 hexagona 738 ziczac 285 scrupea 740 Nomada bisignata 779 INDEX. 809 Nomada vincta 778 Oncideres cingulatus 330 Noterus bicolor 561 Onthophagus incensus 647 Nothopus zabroides 544 ovatus 148 Notiophilus aeneus 530 viridicatus 648 porrectus 498, 530 Onthophilus alternatus 270 semistriatus 497, 530 Oodes? parallelus 532 Nysson aurinotus 752 Opatrinus notus 304 Opatrum interruptum 155 Oberea oculaticollis 189 notum 304, 658 Obrium pallidum 193 pullum 304 Ochodaeus americanus 652 striatum 658 musculus 652 Ophion bilineatus 695 Ochthera empidiformis 85 brachiator 694 Ocypete comata 23 glabratus 695 Ocyptera arcuata 365 mundus 695 Ocypus ater 567 purgatus 694 Odacantha dorsalis 447 Ophonus interstitialis 545 pensylvanica 446 Ophryastes sulcirostris 178 Odontseus filicornis 126 vittatus 177 musculus 652 Oribita concentrica 18 Odynerus annulatus 765 glabrata 18 anormis 767 Ornithomyia confluens 88 crypticus 765 nebulosa 87 oculatus 766 pallida 87 quadridens 766 Orsodacna aspatica 337 quadrisectus 765 tripla 357 uncinatus 766 vittata 204 Oedemera apicalis 660 Ortalis ligata 368 fraxini 160 marginata 368 puncticollis 161 trifasciata 368 ruficollis 160 vau 369 vestita 161 Osmia bucconis 777 Oedionychis gibbitarsis 225 lignaria 776 scripticollis 226 Osmoderma eremicola 141 vians 226 Osorius latipes 588 Oestrus 32 Oxybelus emarginatus 757 hominis 33 laetus 758 Olfersia albipennis 87 4-notatus 758 Olibrus pallipes 230 Oxyporus stygicus 575 Oligota pedicularis 589 Oxytelus armatus 100 Olisthopus cinctus 537 cordatus 576 parmatus 474, 537 fasciatus 101 Olophrum rotundicolle 579 emarginatus 577 Omalisus coccinatus 633 melanocephalus 101 humeralis 633 nitidulus 576 marginellus 633 pallipennis 100 mundus 633 rugulosus 576 obliquus 634 sculptus 575 sculptilis 633 Omalium marginatum 579 Pachybrachys abdominalis 209 rotundicolle 579 nigricornis 208 Omaseus nigrita 480 luridus 210 picicornis 470 Pachyscelis 598 Ommatus tibialis 63 Pachyta lone 200 Omophron labiatum 495 Leonardi 200 Lecontei 95 Servillei 200 tesselatum 97 Pachnephorus 10-notatus 214 Omorgus scutellaris 140 Pactostoma anastomosis 152 H81O INDEX. P'ederus binotatus 99 Phengodes plumosa 634 cinctus 572 testaceus 634 corticinus 571 Phelister subrotundus 266 discopunctatus 572 vernus 265 longiusculus 592 Philanthus solivagus 764 Panagaeus crucigerus 489 Philhydrus rotundus 292 fasciatus 490 Philonthus apicalis 566 Pangonia incisuralis 53 blandus 564 Pangus caliginosus 544 cyanipennis 566 Parandra polita 662 dimidiatus 565 Paratenetus pubescens 325 hcematurus 566 punctatus 385 ventralis 565 Paria aterrima 212 umbratilis 566 4-notata 214 Phlegon heterocerus 624 sexnotata 213 Photinus angulatus 274 Paromnalus sequalis 269 nigricans 115 conjunctus 265 pyralis 274 Pasimachus depressus 449 scinctillans 275 elongatus 449 Phyllobrotica decorata 223 subsulcatus 449 discoidea 221 Patrobus americanus 467, 534 longicornis 224 longicornis 467, 534 atripennis 224 Pedetes acanthus 616 atriventris 225 cucullatus 613 cristata 224 scapularis 615 Phyllobsenus dislocatus 284 P.edilus collaris 311 transversalis 284 impressus 312 Phyton limum 193 imus 311 Piarorhinus scutellaris 316 labiatus 313 Pimelia rotunda 148 lugubris 311 Pimpla humida 683 marginicollis 311 petiolata 683 nigricans 311 Pinacodera platicollis 446 rufithorax 311 Pinophilus latipes 572 Pedinus suturalis 155 Platycerus quercus 147 Pelor avidus 541 securidens 146 Peltastes pollinctorius 700 Platydema excavatum 158 Pentatoma arborea 239 Platynus blandus 477 clanda 240 cincticollis 477 exapta 240 cupripennis 475 faceta 242 decens 477 punctipes 241 decorus 477 Pemphredon annulatus 761 errans 94 marginatus 760 erythropus 482 Penthletria heros 352 extensicollis 478 Pericompsus ephippiatus 553 hypolithos 482 Perilampus platygaster 722 limbatus 474 Peryphius scopulinus 551 maculifrons 94 Phalacrus pallipes 230 nutans 476 penicellatus 230 8-punctatus 476 Phalangium dorsatum 13 placidus 469 grande 14 punctiformis 481 nigrum 14 Platyomus auriceps 174 vittatum 13 Platypus compositus 182 Phanaeus torrens 132 Platysoma carolinurn 269 triangularis 132 frontale 268 Phasia atripennis 363 paralleluin 268 jugatoria 364 Platyura subterminalis 350 Phausis reticulata 274 Plegaderus transversus 270 INDEX. 811 Plesia marginata 747 Psilopus sipho 75 Podabrus basillaris 116 unifasciatus 75 modestus 117 Psilus abdominalis 729 rufiolus 278 apicalis 729 tomentosus 276 colon 729 tricostatus 636 terminatus 728 Podura bicolor 8 Psyllobora 20-maculata 235 fasciata 8 Pterochilus 5-fasciatus 765 iricolor 8 Pterostichus abjectus 480 Poecilonota cyanipes 106 Ptilinus ruficornis 119 Poecilus chalcites 479 serricollis 119 convexicollis 475, 537 Ptinus humeralis 641 lucublandus 479 Ptosima gibbicollis 104 monedula 471 luctuosa 104, 591 Sayi 480 Pycnomerus hamatodes 323 Pogonus rectus 482, 534 reflexus 323 Polemius laticornis 278 Pyria tridens 731 Polistes areata 768 Pyrochroa infumata 312 mellifica 769 inornata 311 metrica 768 Pyropa furcata 85 valida 769 Pytho pallida 160 Pollaclasis ovata 635 Polydesmus granulatus 27 Quedius capucinus 565 serratus 27 fulgidus 564 Polyphylla 10-lineata 146 Pollyxenus fasciculatus 28 Reduvius raptatorius 249 Pompilus architectus 744 spissipes 250 biguttatus 745 Rhaeboscelis cogitans 598 calipterus 744 Rhagium cyanipenne 200 conicus 746 trivittatum 199 lepidus 745 Rhamphomyia cilipes 83 mellipes 746 5-lineata 82 petiolatus 746 rufirostris 355 5-notatus 745 Rhingia nasica 81 Priocera inornata 638 Rhipiphorus bicolor 162 Prionus cilipes 185 limbatus 660 dasystomus 184, 663 Sayi 163 emarginatus 184 Rhopalophora longipes 201 palparis 185 Rhynchaenus armicollis 175 Pristodactyla americana 471 caudatus 174 impunctata 471 constrictus 176 Proctotrupes abruptus 725 interstitialis 176 obsoletus 725 lineaticollis 175 pallidus 725 undulatus 177 Promachus vertebratus 62 Rhyssematus lineaticollis 175 Prometopia undulata 286 Rugilus dentatus 573 Promus opacus 155 Rygchium annulatum 765 Psammodius interruptus 651 balteatum 764 Pselaphus carinatus 235 crypticum 765 dentatus 236 5-fasciatum 765 riparius 235 Ryphus alternatus 51 Pseu leucopus 753 marginatus 50 mellipes 753 Psenoceruspini 201 Sacium fasciatum 320 supernotatus 201 Sandalus brunneus 631 Psilopus femoratus 76, 261 petrophya 630 patibulatus 77, 361 Saperda alternata 188 Sayi 75 bivittata 190 812 INDEX. Saperda calcarata ]90 Selenophorus iripennis 458 candida 191 varicolor 458 cinerea 331 Serica iricolor 144 cingulata 330 sericea 144 fuscipes 331 vespertina 144 inornata 189 Sicus fenestratus 82 mutica 191 Sigalphus basillaris 715 nigra 330 sericeus 716 obliqua 332 Silis bidentata 278, 637 oculaticollis 189 longicornis 637 pergrata 190 percomis 637 puncticollis 189 Silvanus dentatus 325 trigeminata 189 Simulium venustum 51 trilineata 331 Sinoxylon basillare 181 vestita 331 Silpha caudata 122, 644 Saprinus 266 lapponica 123 Sapromyza bipunctata 367 ramosa 123 connexa 367 truncata 123 Sapyga centrata 743 tuberculata 644 subulata 743 Smileceras solitarium 192 Sargus trivittatus 355 Smodicum cucujiforme 335 viridis 77 Smynthurus guttatus 8 Scaeva affinis 81 Sparasion famelicus 723 concava 78 Sphecodes confertus 771 emarginata 79 Spheracra dorsalis 525 geminata 80 Sphaeridium apicale 130 marginata 80 mellipes 647 obliqua 78 nigricolle 294 polita 77 ocellatum 294 quadrata 79 praetextatum 294 Scaphidium 4-guttatum 126 Staphylinus apicalis 566 4-pustulatum 127 ater 567 Scaphisoma convexum 289 blandus 564 Scarabaeus latipes 653 connexus 563 relictus 296 cyanipennis 566 tridentatus 134 dimidiatus 565 Scarites depressus 449 ephippiatus 563 subterraneus 448 inversus 564 Scatophaga furcata 85 iracundus 563 Scenopinus nubilipes 363 tachiniformis 565 Sciara exilis 352 viduatus 566 femorata 70 violaceus 566 unicolor 351 umbratilis 566 Sciophila fasciata 50 Stelidota geminata 287 Schizogenius lineolatus 451 8-maculata 287 sulcifrons 451 Stelis obesa 776 Sclerocerus linearis 333 Stenaspis solitaria 192 rigidus 333 Stenochia terminata 157, 307 Scolia confluens 739 Stenocorus longipes 201 dubia 749 mucronatus 201 ephippium 748 4-geminatus 333 plumipes 749 rigidus 332 Scolopendra marginata 29 Stenolophus cinctus 547 viridis 29 conjunctus 504 Scolytus muticus 182 ochropezus 478 4-spinosus 182 partiarius 505 Scymnus terminatus 671 Stenopterus sanguinicollis 664 Selenophorus caliginosus 455 Stenostola pergrata 190 INDEX. 813 Stenotarsut hispidus.348 Tachys tripunctatus 554 Stenus colon 574 Tachyta picipes 502 femoratus 574 Tanypus annulatus 43 flavicornis 584 tibialis 43 geniculatus 573 Taphrocerus gracilis 599 4-punctatus 575 Telephorus angulatus 117 stygicus 574 Benettii 636 Stichopogon trifasciatus 64 bilineatus 119 argenteus 65 dubius 268 Stigmus parallelus 760 fraxini 118 pusillus 760 nigriceps 278 Stilicus dentatus 573 nigrita 118 Stomis americana 475 rufipes 118 granulata 540 scitulus 278 Stratiomys goniphora 356 Tenebrio badius 156 trivittata 356 calcaratus 303 Stygia elongata 58 interstitialis 156 Sunius binotatus 100 suppressus 659 longiusculus 572 tenebrioides 156 prolixus 573 terminatus 157 Suphis bicolor 561 reflexus 303 gibbulus 561 rufipes 303 Synchita granulata 326 rufinasus 659 4-guttata 326 Tengyra stygia 741 Syneta tripla 337 Tetraopes canteriator 666 Syrphus 77 tetraopthalmus 665 ectypus 359 tornator 665 mutuus 358 Tettigonia basillaris 260 stegnus 358 bifida 387 comes 259 Tabanus annulatus 53 hieroglyphica 387 molestus 53 limbata 258 stygius 54 mixta 258 Tachydromia fenestrata 82 mollipes 386 Tachinus atricaudatus 102, 580 obliqua 259 cincticollis 581 occatoria 385 cinctus 102 8-lineata 257 fimbriatus 584 4-vittata 396 fumipennis 582 trifasciata 259 humidus 581 versuta 386 trimaculatus 580 Thanasimus abdominalis 640 ventriculus 583 nubilus 640 Tachyporus acaudus 583 trifasciatus 283 arduus 582 undatulus 640 brunneus 584 Thaneroclerus sanguineus 639 crassus 582 Tharops obliquus 626 faber 584 ruficornis 108, 626 fimbriatus 580 Thecesternus humeralis 317 fumipennis 581 Thereva albifrons 353 jocosus 582 corrusca 57 moestus 582 nigra 57 opicus 583 tergissa 57 ventriculus 582 Throscus constrictor 629 Tachys flavicauda 502 Thylacites tesselatus 179 incurvus 554 Thulea nigra 675 inornatus 502 Tillus bicolor 281, 638 laevus 503 terminatus 637 proximus 503 undulatus 282, 638 814 INDEX. Tingis oblonga 248 Trombidium scabrum 16 Tinopus longipes 201 sericeum 16 Tiphia tarda 742 Tropideres bimaculatus 314 Tipula annulata 49 Trox capillaris 139 annulicornis 350 porcatus 296 collaris 49 punctatus 653 costalis 48 scutellaris 140 cunctans 48 striatulus 295 macrocera 48 terrestris 295 trivittata 50 alternatus 652 Tmesiphorus carinatus 235 globosus 653 Torymus ochreatus 723 splendidus 653 pavidus 723 Trypeta caliptera 370 Tomicus calligraphus 318 electa 369 pini 319 obliqua 370 xylographus 318 Trypoxylon carinatus 757 Tomoderus constrictus 309 clavatus 756 Tostegotera lanceolata 142 politus 756 Toxomerus notatus 81 Toxotus atratus 197 Uloma ferruginea 659 cylinaricollis 197 dives 197 Volucella marginata 360 trivittatus 200 postica 360 Trachys ovata 598 violacea 360 tesselata 598 Tragidion coquus 195 Xantholinus cephalus 567 Trechus conjunctus 504 emmesus 567 flavipes 505 hamatus 568 rupestris 505 Kiesenwetter 568 Trichestes ephilida 298 obscurus 568 Trichius eremicola 141 Xiphydria basalis 681 Trichodes apivorus 640 maculata 681 Nuttalli 640 Xorides humeralis 682 ornatus 120 Xya apicalis 239 verticalis 640 Xyletinus sericeus 280 Trichopoda pennipes 364 Xylocopa carolina 786 Tridactylus apicalis 239 lateralis 787 Trigona bilineata 788 Xylophagus fasciatus 353 ligata 789 triangularis 52 Triplax biguttata 228 Xylota arquata 357 melanoptera 229 Xyloteres politus 319 sanguinipennis 229 Xystropus amoenus. 15S thoracica 229 Tritoma angulatum 345 Zabrus avidus 95 basalis 230 Zenoa picea 631 cinctum 345 vulnerata 631 pulchrum 345 Zodion abdominalis 74 unicolor 345 fulvifrons 74 vittata 347 Zonitis bilineata 3 Trogoderma ornatum 291 Zophosis reticulata 147