L.REICHE.N? 3/Z | From the Library of Professor Henry F. Wickham University of Iowa Presented in 1942 595.76 i] AL pec 5- 1942 ? ’ Vi ge aly Yucy ee eee, Pas > >. 2 ae i » ome « 7 a. Pea! é i - a" es PAN, we < red oe _ 4¥ a ‘4 a ) Mae , “ae ee ® - eae oe = a AR Ae ey bs: ot me}. Mais, bros a ey, . Characteristics of some previously described North Amer- ican Coleopterous Insects, and descriptions of others which appear to be new, in the Collection of Mr. Abra- ham Halsey: By T. W. Harris, M. D., Librarian of Harvard University. Communicated Dec. 23, 1835. . 1. Currvrva quaprimacutata, Pal. de Beauvois. 8 Thorax black, quadrate, broadest at base, with obtuse- cx ly rounded angles, and an impressed dorsal line: elytra , with punctured striz, piceous black, obscurely rufous at “> base, and with an oblong oval rufous spot near the tip. “» Length 30 hundredths of an inch. ~. Scarites (Clivina) quadrimaculata, Palisot de Beauvois, “ —Insectes, p. 107. Pl. 15, fig. 6. Clivina bipustulata : ? F. var. Say. Trans. Philos. Soc. Phil. N. S. vol. ii. p. 20-21. C. bipustulata, F. Dejean. Species. Vol. 1. p. 417. C. quadrimaculata, Pal. de Beauv. Say. Descriptions, . Harmony. p. 5.—Trans. Philos. Soc. Phil. N. 8. vol. iv. > p. 415. Halsey’s Collection, No. 11. Thorax almost square, diameters equal, a little broadest , at base, angles very obtusely rounded, pedicle short, later- al edge not recurved at tip. Elytra with one impressed point at the commencement of the rufous terminal spot, “on the second interstitial line, contiguous to the third stria ; “fourth interstitial line impunctured. Intermediate tibie ~ not dentated on the outside, but beset with short bristles. 66 NORTH AMERICAN COLEOPTERA. Anterior thighs dilated, ra with the body beneath piceous black ; tarsi, and the other legs dark ferruginous. Notwithstanding the remark made by Mr. Say that, in the guadrimaculata, the interstitial lines are entirely with- out punctures, I believe this insect to be the one described by M. Pal. de Beauvois, although it has a single impress- ion on the second interstitial line. The description given by Count Dejean of his bipustulata, to which he refers M. Beauvois’s quadrimaculata, is deficient in some respects, the insect from which the description was drawn being, as he savs, in bad condition. Mr. Say also confounded the bipustulata and quadrimaculata in his description in the Philosophical Transactions; but, subsequently, corrected the mistake, and stated that the thorax of the Fabrician species is proportionably longer than that of the quadri- maculata. 2. Crivina spHmRIcOLLISs, Say. Thorax subglobose, broadest behind the middle, with a dorsal impressed line ; elytra greenish black, with distant punctured striz ; tibia and tarsi dark rufous. Length 19 hundredths of an inch. C. sphericollis, Say. Trans. Philos. Soc. Phil. N.S. vol. il. p. 23. Halsey’s Collection, No. 10. Head black, somewhat bronzed. Body beneath and thighs piceous black. Thorax longer than wide, somewhat gibbous behind the middle; the pedicle long, as in the globulosa, S. Anterior tibie not digitate on the outside ; apex prolonged, spiniform, with a stout spine opposed to it beneath the tip, and a deep indentation before the mid- dle of the inside. From these characters derived from the tibia, and from the globular form of the thorax this species must belong to M. Bonelli’s genus Dyscurnivs. NORTH AMERICAN COLEOPTERA. 67 3. CHianius mstivus? Say. © Thorax cordato-quadrate, with the head greenish cu- preous, densely punctured; elytra purple-black, with punctured striz, and granulated, subconvex interstitial lines ; antenne and feet rufous. Length 66 hundredths of an inch. C. estivus? Say. 'Trans. Philos, Soc. Phil. N.S. vol. li. p. 62. Halsey’s Collection, No. 16. Two females. Body beneath rufo-piceous. Head cupreous, green be- fore, densely punctured ; labrum ferruginous, entire. Tho- rax cupreous, tinged before and on the edge with green, with large distant punctures ; quadrate, rather longer than broad, widest a little before the middle, rounded on the sides before and contracted behind the middle, with the hind angles almost straight or slightly excurved and suba- cute; dorsal line not widely sulcated, almost obsolete be- hind; lateral grooves short, wide, neither reaching the middle nor the base. In other respects this insect agrees with Mr. Say’s de- scription, except in being rather smaller. Compared with C. purpuratus, mi, Ms. this species, besides being much larger, has the thorax much more cordiform, (or contracted behind,) longer, not near so con- vex, with the dorsal line not so widely and distinctly im- pressed, the basal lines not so oblique, of a decidedly cu- preous colour tinged with green, instead of being purple as in that species ; and the elytra are of a much more ob- scure purple-black. The form of the body is much the same in both. 4, CoLyMBETES sTAGnints, Say. Oval, black, beneath piceous; vertex with two spots and the anterior margin rufous ; elytra depressed, with a whitish sub-marginal abbreviated line. 68 NORTH AMERICAN COLEOPTERA. Length 37 hundredths of an inch. C. stagninus, Say. Trans. Philos. Soc. Phil. N.S. vol. ii. p. 100. fHalsey’s Collection, No. 88. 1 female. Body oval, obtuse before and behind, and somewhat depressed ; above black, opaque, covered with obsolete orbicular or oval granules ; beneath piceous. Elytra with three dilated lines of irregular punctures, confused at tip ; and a whitish line originating near the middle of the later- al submargin, and ending before the tip. In all other re- spects the specimen agrees with Mr. Say’s description. Compared with the fenestralis, S. this insect is more obtuse behind, much more depressed, and rather smaller in size. The granulations of the elytra are almost obso- lete, and the color is destitute of the brassy or metallic tinge of the fenestralis ; while the punctured lines and white submarginal stripe render it quite a distinct and easily recognized species. It is broader, more depressed, and much more obtuse behind than the seriatus, S. and not so convex and acute behind as the erytropterus, of the same author. 5. CorymBeres ciypiicus, Say. Fuscous-brown, thorax paler; beneath piceous; elytra deeply striated. Length 21 hundredths of an inch. C. glyphicus, Say. ‘Trans. Philos. Soc. Phil. N.S. vol. ll. p. 99. Halsey’s Collection, No. 39. One.male. Head and thorax minutely punctured, rufous, darker on the summit. Elytra impunctured, smooth, fuscous brown, the outer margin obsoletely rufous, &c. In other respects the specimen corresponds exactly with Mr. Say’s de- scription. NORTH AMERICAN COLEOPTERA. 69 The body is oblong-oval, like that of C. bicarinatus, 8., depressed, and equally rounded before and behind. ‘This insect is readily recognized by its lavigated and deeply striated elytra. Compared with the bicarinatus, as to form, it is more obtuse behind, and more depressed ; while its color is rather of a fuscous than a reddish brown. 6. OxyTEeLus ruauLosus? Say. Black ; head, thorax and elytra covered with minute longitudinal wrinkles ; thorax trisulcated ; elytra piceous brown, Length from 19 to 20 hundredths of an inch. O. rugulosus? Say. Descriptions, Harmony. p. 47.— Trans. Philos. Soc. Phil. N.S. vol. iv. p. 460. ffalsey’s Collection, No. 46. Head behind longitudinally wrinkled, before nearly smooth, with a deep transverse indentation in front, be- yond which the head is very much depressed; a longi- tudinal abbreviated groove on each side above the eyes, and a very short indentation on the vertex. Antenne black, opaque, Jaws and palpi rufous. Thorax trans- versely quadrate, broadest before the middle, anterior margin straight, hmder margin and angles, rounded, ante- rior angles rectangular, obtuse ; disc widely indented or depressed each side of the centre, covered with minute longitudinal wrinkles, and with three longitudinal, ap- proximated grooves, of which the middle one is widest before, and the lateral ones behind. Tergum black, pol- ished ; under a high magnifier it will be seen to be cover- ed with mute punctures, which, however, are invisible to the naked eye. Closely allied to an undescribed species from Massa- chusetts, (my No. 1405,) proportionally more slender, much smaller, with a longer thorax, the anterior angles of which are much more acute, the base more prolonged in the middle; the elytra darker, &c. &c. 70 NORTH AMERICAN COLEOPTERA. 7. Tacuyrorus ma@stus, Say. Piceous, sericeous ; antenne, feet, and vent honey yel- low. Length 16 hundredths of an inch. T. mestus, Say. Descriptions, Harmony, p.53.—Trans. Philos. Soc. Phil. N. S. vol. iv. p. 466. Halsey’s Collection, No. 202. Body covered with sericeous, glossy pubescence, chang- ing the shade of color in different positions. Thorax and elytra obsoletely edged with rufous, &c. &c. Compared with Tachyporus fumipennis, S. it is smaller and more slender; the abdomen is more elongated ; the thorax rather longer, and consequently more gradually narrowed and rounded before. 8. EQLATER MILITARIS.* Black ; elytra whitish, outer edge and elongated sutu- ral spot behind black. Length 30 hundredths of an inch. Halsey’s Collection, No. 58. Body black. Clypeus moderate, depressed, rounded at tip. Antenne piceous, not much longer than the thorax, not very robust; second and third joints obconical, nearly globular, much smaller than either of the succeeding ones ; the second rather shorter and thicker than the third; the fourth and remaining joints to the last triangular, and equal; terminal joint regularly oval. ‘Thorax short, and with the head minutely punctured, polished, black ; hairs thin, inconspicuous; posterior angles carinated, very slighty excurved, acute. Scutel convex, acute and slight- ly elevated behind. Elytra whitish, with strize of dilated punctures ; the exterior edge black, and an elongated black spot upon the suture, widest behind, and suddenly attenuated before the middle, extending in a mere line * Plate I. fig. 1. NORTH AMERICAN COLEOPTERA. 71 nearly to the scutel. Feet piceous; tarsal joints pro- gressively shorter and smaller to the last, not lobed be- neath ; claws simple. This apparently new species nearly resembles the lu- gubris of M. Pal. de Beauvois in form ; but it is a much smaller insect ; the thorax is more polished, with the punc- tures less apparent, the hinder margin not so deeply emarginated for the base of the elytra, and the posterior angles rather more excurved. ‘The elytra, taken together, are widest just before the middle, and are not so much contracted until towards the tip. The antenne and tarsi are widely different in these two species. 9. Exarer rusricoius, Herbst. Black ; thorax above dull crimson or rufous, beneath black; edge of the clypeus depressed ; third joint of the antennz longer than the second, obconic ; vertex reddish ; nails simple. Length 50 hundredths of an inch. i. rubricollis, Herbst. Wafer. Vol. x. p. 49, Plate 162, fig. 6. E. rubricollis, Melsheimer’s Cat. Say. Journ. Acad. Nat. Sciences, Phil. vol. i. p. 177. E. verticinus, Beauvois, Say. Annals Lyceum, New York, vol. i. p. 268. HE. rubricollis, Herbst, Say. Descriptions, Harmony. p: 71. Cabinet of the Boston Society of Nat. Hist. No. 918. Body punctured, and with small, depressed, rufous hairs. Head black, dull crimson on the disc in a good light; mi- nutely punctured ; edge of the clypeus deflexed over the front. Antennze with the second joint rufous, obovate, a little more than half the length of the third, which is obconic. Thorax dull crimson above, the anterior edge, lateral margin, spines, and breast black. Elytral striz T2 NORTIL AMERICAN COLEOPTERA. with round, close punctures; interstitial lines convex, punctured. Disc of the postpectus with a reddish spot each side. An obsolete reddish line on the sides of the last three ventral segments. [eet beneath piceous, not lobed ; nails simple. Inhabits New Hampshire, Pennsylvania, and Illinois. A single specimen ‘of this insect, captured in New Hampshire, and preserved in the Cabinet of the Boston Society of Natural History, has afforded me the oppor- tunity of drawing up the preceding description, which is inserted in this place for the purpose of pointing out the characters which distinguish this species from the Hlater collaris of Mr. Say. It 1s, without doubt, the true rubri- collis of M. Herbst. Mr. Say* says that “ it is the verézci- nus, Beauvois,” also, and that he “does not know which [name] has the priority.”{ It is not to be found described in the 12 hvraisons of M. Pal. de Beauvois’s “ Insectes,” the last of which was published in 1818; and as Herbst published the 10th volume of his work in 1806, the name of rubricollis, given by him, has undoubtedly the priority, over that of verticinus. It should be observed that the crimson color of the thorax, d&c. of this insect fades to a dull red or rufous col- our after it has been some time preserved. 10. Eucnemts rrianauLaris, Say. Black, sericeous; antennz two thirds the length of the body ; thorax with a carinated line behind the middle, an- terior margin piceous; pectus channelled, to receive the antenne, each side of the middle; elytra punctured, and with only a subsutural stria. Length 18 hundredths of an inch. * Annals New York Lyceum. Vol.i. p. 268, under E£. collaris. tSee his ‘ Descriptions of new species of North American Insects, &c.’” printed at Harmony, Indiana, from 1829 to 1834, p. 71. NORTH AMERICAN COLEOPTERA. 19 Elater triangularis, Say. Journ. Acad. Nat. Se. vol. ul. p. 170. Euenemis triangularis, Say. Ms. No. 13. Eucnemis longulus, Dejean, according to Leconte, Halsey’s Collection, No. 69. Body black, sericeous with short, scattered, yellowish hairs. Head beneath with a deep longitudinal furrow on each side of the clypeus. Antenne dark piceous ; first joint arcuated, thickened ; second very short obconic, and arcuated at base; third nearly as long as the first, obcon- ic ; remaining joints elongated triangular, serrate within ; terminal joint elliptical, attenuated at base, subacutely rounded at tip. Thorax quadrate, convex before, emar- ginate:' each side of the base; hinder angles produced, incurved, acute ; the surface minutely punctured, with a deep indentation at the base before the scutel, a fainter one before each of the posterior spines, and an obsolete carinated line from the middle of the disk to the basal in- dentation. Elytra elongated, moderately narrowed from the shoulders to the tip, which is obtusely rounded ; sur- face not regularly striated, but densely and irregularly punctured, and with a subsutural depressed longitudinal line most distant behind the middle. Feet pale rufous. Inhabits New Hampshire, Indiana, Missouri, &c. Mr. Say gave me the name for this species, which, however, does not entirely agree with his descriptions ; the antennz being larger, the thorax carinated behind, and the elytra with one stria. Notwithstanding these dif- ferences it is most probably the true . triangularis of Mr. Say. The variety, indicated, in the Journal Academy Nat. Sc., as having the elytra striated and dull rufous at base, has been separated and described as a distinct species, in Mr. Say’s Manuscripts, under the name of Hucnemis hu- meraiis. Besides these two species, Mr. Say refers to the 10 74 NORTH AMERICAN COLEOPTERA. same genus his Haters muscidus, unicolor, and clypeatus, his Melasis ruficornis, and eight new species, inhabiting the United States. 11. Lampyris nienicans, Say. Brownish black ; thorax with an elongated rosaceous or sanguineo-rufous spot each side within the margin. Length 25 hundredths of an inch. L.mgricans, Say. Journ. Acad. Nat. Sc. vol. iii. p. 179. Halsey’s Collection, No. —. The thoracic spots are decidedly rosaceous in recent specimens, but seem to become sanguineo-rufous after being some time kept. The terminal joint of the antennz is ovate, attenuated, or subacute at tip; and the other jomts are moderately dilated. It has not, as yet, been discovered in Massachusetts. 12. Lampyris DECIPIENS.* Brownish black or fuscous; lateral dilated margins of the thorax rosaceous, or sanguineo-rufous; tip of the ab- domen immaculate. Length from 22 to 26 hundredths of an inch. LL. decipiens, Harris, Catalogue, p. 500. Halsey’s Collection, No. 77. Body oblong, nearly linear, brownish black, opaque. Antenne nearly linear, slightly dilated and subcompressed ; terminal almost as long as the penultimate joint, linear, obtuse at tip. Thorax polished black from the base to the front edge, the dilated and depressed lateral margins above and beneath rosaceous in recent and sanguineo-ru- fous in old specimens. Elytra brownish black, opaque, minutely granulated, and with two slightly elevated lines. Abdomen entirely black beneath. Inhabits Massachusetts. * Plate I. fig. 2. NORTH AMERICAN COLEOPTERA. ves Differs from L. nigricans in not having the lateral mar- gin as well as the disc of the thorax black, in the form of the last joint of the antennee, &c. &c. It somewhat re- sembles L. laticornis, Fabricius, a much larger and pro- portionally broader species, which has more dilated an- tennee, and the sides of the last abdominal segment yel- lowish white both above and beneath. 13. ANOBIUM PELTATUM. Reddish brown, sericeous ; thorax transverse, obsolete- ly carinated in the middle of the base; elytral striz im- punctured, slender, not profound. Length from 17 to 18 hundredths of an inch. Halsey’s Collection, No. 221, male and female. Last three joints of the antennz in the male oblong- oval, not much elongated ; remaining joints triangular, di- Jated, serrate. Inthe female the joints of the antenne are proportionally shorter than those of the male, the two or three basal ones transverse, the rest progressively longer but all triangular, except the last, which is oblong-oval. Thorax transverse, not abruptly contracted before, basal edge slightly bisinuated, basal angles wanting, margin reg- ularly rounded from the base to the anterior angles, which are subacute ; disc not very convex, with an abbreviated, almost obsolete carina near the base. Elytra sericeous, with faintly impressed, siender striz, which are impunc- tured ; the outer and inner ones (as in most other species) coalescing at the tip. Tarsal joints short, stout; the first long-obconic, longer than either of the others ; the second about two thirds the length of the first, obconic; third and fourth subtransverse, each produced beneath in the form of a cordiform lobe; the fourth emarginated above to re- ceive the fifth jot, which is longer than the penultimate, attenuated at base, gibbous at the end, and terminated Jaterally by very small simple claws. 76 NORTH AMERICAN COLEOPTERA. This species differs from the carinatum, of Mr. Say, in having the thorax shorter and wider both at base and tip, the strize of the elytra much less deeply impressed and impunctured, &c. &c. It approaches nearer to tenuestri- atum, Say, which, however, is much smaller, and has punc- tured stric. The tarsi of the pelfatum are short and thick, like those of the striatum, Fabricius, and carinatum, Say; but the penultimate and antepcnultimate joints are obviously lobed beneath, as they are in XyLetinus sericeus, Say. The antenne of this last insect hardly warrant its being sever- ed from thé genus Anopium ; they resemble considerably those of our peltatum, but the last three joints are not so distinctly elongated. 14. Hisrer oprusatus.* Black, immaculate ; head with a transverse stria; tho- rax with two entire lateral striz ; each elytron cbsoletely indented in the middle of the base, transversely punctured at tip, with an entire marginal, oblique abbreviated hu- meral, four entire and two abbreviated dorsal si::cs; an- terior tibiee six-toothed on the outer edge. Length 36 hundredths, breadth 24 hundredths of an inch. Hf. unicolor? F. Say. Journ. Acad. Nat. Sc. vol. v. p. 33. Halsey’s Collection, No. 83. Body oblong oval, very obtuse before and behind, po- lished black, immaculate. External thoracic stria not abbreviated, but uniting behind with the inner one. Mar- ginal and abbreviated oblique humeral strize of the elytra very distinct; within the latter four dorsal strize, the third of which has an obsolete indentation near its origin; the fourth beginning a little farther from the base than the * Plate I. fig. 3. NORTH AMERICAN COLEOPTERA. ee | third; the subsutural stria obsolete from the base nearly to the middle; the stria between it and the fourth dorsal has an arcuated rudiment near the base of the elytron, is discontinued from thence to behind the middle, and is ab- breviated before the termination of the other dorsal striz. A transverse series of obsolete punctures connects the posterior terminations of the second dorsal and subsutural strie. Last abdominal segment very obtusely rounded, and, with the penultimate, exposed, and densely punctured. Anterior tibia six-toothed on the outer edge, the terminal tooth emarginatd, and a minute tooth on the truncated tip just within the emarginated tooth. Is not this the species named unicolor, F. by Mr. Say, in his remarks on H. depurator in the Journal Acad. Nat. Sciences? The unicolor is described by Fabricius as having the anterior tibiee tridentate, and the elytra oblique- ly tristriated ; characters which do not justify us in apply- ing the same name to our insect, which agrees no better with the wnicolor described by M. Boitard in the “ Manuel d’Entomologie.” 15. ‘Trox capinuaris, Say. Clypeus rounded at tip, not reflexed at the sides; ely- tra with longitudinal series of hispid tubercles and alter- nating capillary elevated lines : Length 42 hundredths of an inch. T. capillaris, Say. Journ, Acad. Nat. Sc. vol. ii. p. 238. flalsey’s Collection, No. 97. Body purplish brown, short obovate, very convex. Thorax completely covered with minute, dilated, or scale- like, ochraceous bristles ; dise with a longitudinal furrow, which is widened before; sides declivous, unequal; lat- eral margin entire; hinder margin widely emarginated each side, with a fringe of short bristles, which are inter- rupted between the middle and angles. Scutel triangu- 78 NORTH AMERICAN COLEOPTERA. lar, obtusely rounded at tip, broad and truncated at base. Elytra of a fine purple-brown color, naked; tubercles sloping backwards, tufted with short, black bristles; the third, fifth, seventh, and ninth series, from the suture, lar- ger than the intervening ones; alternating with the rows of tubercles are small, threadlike, uninterrupted elevated lines. Anterior tibize enlarged towards the end, with a stout tooth before the tip, the latter being curved outwards and backwards, and emarginated or obtusely bidentate. Compared with the porcatus of Mr. Say, which this species somewhat resembles, it is smaller, more convex, more obtuse behind, and proportionally shorter. The clypeus and thorax are nearly alike in both, but the latter in the porcatus is not quite so gibbous before, nor is the longitudinal groove quite so much dilated in front, and the fringe of the hinder margin is uninterrupted. The elytra of the. capillaris have not the series of dilated punctures of the porcatus, are distinctly tuberculated, and it may fur- thermore be discriminated at once from its allied Ameri- can species by the slender elevated lines alternating with the rows of tubercles. 16. Tanymecus tacmna, Herbst. Body oblong, densely punctured, piceous black, some- what cupreous, above with yellowish ashen, beneath more thickly covered with dirty white scales; rostrum carmu- lated before ; thorax with three denuded, blackish vitte ; elytra deeply punctured at base, punctato-striate, and with a callus behind. Length, to the tip of the rostrum, 26 hundredths of an inch. Curculio lacena, Herbst. (Kafer, vol. vii. p. 350. Pi. 100. fig. 10. T. lacena? Herbst. Say. Curculionites, p. 9. No. 1. Halsey’s Collection, No. —. NORTH AMERICAN COLEOPTERA. 79 Body above rather sparingly covered with oval yellow- ish ashen scales, intermixed with short, dilated, depressed, whiter bristles; beneath with closer whitish scales and bristles. Rostrum, above, from the middle of the interocu- lar space, with a slender, raised line, discontinued before the tip, which is obsoletely and widely impressed. Eyes oval, black, rather prominent. Antenne very dark ru- fous ; the first joint extending nearly to the hinder margin of the eyes; the second joint thicker and rather longer than the third; the fourth to the seventh short, turbinated, gradually increasing in width; club oval, subacuminated. Thorax barrel-shaped, longer than wide, broadest before the middle, rugosely and densely punctured; above with three denuded, longitudinal, blackish lines, one in the mid- dle, and one on each side. Elytra at base conjointly emar- ginated, with the shoulders sloping obliquely backwards, behind which they are nearly twice the width of the tho- rax ; not very perceptibly widened in the middle ; gradu- ally attenuated; rounded behind; and each one subacu- minated at tip, before which is a slight elevation or callus ; at the sides and behind they are distinctly striated, the striee with distant oblong punctures ; before the strize are obsolete, and the punctures are larger and more distinct. Legs dark piceous, with scattered scales, and thicker bris- tles; posterior thighs obsoletely annulated with whiter scales near their tip, and, with the others, clavate and un- armed ; tibiae not spined at tip, the anterior pair some- what arcuated ; the hindmost ones, on the outside, near the extremity fringed with short, close-set hairs. This insect is evidently the Tanymecus lacena of Mr. Say, although he states his specimen to be only three twentieths of an inch in length. This measurement and the character given in his description, “ tip of each [ely- tron] with a short joint in the middle,” appear to be typo- graphical errors. M. Herbst says that the lacena is three 80 NORTH AMERICAN COLEOPTERA. lines long. Our species seems to be allied to the confer- tus of M. Schoenherr, (« Genera et Species,” vol. ii. p. 88.) which is said to be of the size of the palliatus, a much larger insect than the one here described. The /acena has the form of a Srrona, but the rostrum is more erect, the shoulders of the elytra are much more oblique, and the first joint of the antenne is rather long- er, &c. 17. Crnrrinus! pILECTUS. Punctured, and with brassy scales ; scutel whitish ; third joint of the antennz twice as long as the fourth. Length, exclusive of the rostrum, 20 hundredths of an inch. Halsey’s Collection, No. 165. Body piceous black, densely punctured, and with elon- gated, brassy yellow scales. Head retracted to the eyes within the thorax, indented at the base of the rostrum. Rostrum as long as the head and thorax, slender, almost filiform, arcuated, slightly dilated over the origin of the antennee, piceous, minutely and remotely punctured. An- tennze inserted behind the middle of the rostrum, piceous, club rufous; third joint (second of the funiculus,) two thirds the length of the preceding, and twice the length of the following jot. Thorax, in the middle, longitudinally elevated, or almost carinated, covered with linear-lanceo- late scales, which converge from the sides towards the central carina. Elytra with acute, remotely punctured striz, and flat interstitial lines, each one of which is cov- ered with large, superficial, confluent punctures, and three series of lmear-lanceolate scales; an oblique elevation or callus before the tip of each elytron. Body, beneath, more densely covered with whiter, shorter, oval scales. Breast, before the anterior legs widely indented, not ca- naliculate, unarmed. NORTH AMERICAN COLEOPTERA. 8] See the remarks under the following species. 18. Cxrnrrinus suTor.* Black, punctured ; scutel with white, and body with yellowish, linear scales: third and fourth joints of the an- tenne together shorter than the second, subequal. Length, exclusive of the rostrum, 9 hundredths of an inch. Halsey’s Collection, No. 167. Body black, densely punctured, and with linear-lanceo- late yellowish or dirty white scales. Head indented at the base of the rostrum, retracted to the eyes within the thorax. Rostrum rather longer than the head and thorax, slender, arcuated, slightly dilated in the middle. Antenne inserted just behind the middle of the rostrum ; second joint (first of the funiculus,) longer than the third and fourth taken together ; the fourth joint rather shorter than the third. Thorax obtusely carinated, covered with lin- ear scales converging towards the central carina. LElytra with acute, remotely punctured stria, and flat, confluently but vaguely punctured interstitial lines, on each of which are three rows of linear scales. Scutel and posterior lobe of the thorax, in front of it, with white scales. Body, be- neath, more densely covered with oval, whitish scales. Breast deeply and widely indented before the anterior Jegs, not canaliculate, but with a long, pendent spine in front of each of the anterior coxe. This insect and the preceding one are evidently closely related. They agree in the form of the head, rostrum, thorax, and body: the eyes, in both, are large, oval, not prominent, but rather flat, separated above only by the base of the slender rostrum, and below by a still narrower space. ‘The thorax is conical, nearly as long as it is wide, tubulated before, without lobes behind the eyes, bismuated behind, and produced in the middle of the base before the * Plate I. fig. 5. 11 82 NORTH AMERICAN COLEOPTERA. scutel. The elytra, taken together, are triangular, broad- est at base, with prominent shoulders, attenuated behind, the tip not truncated nor obtusely rounded, but subacute, and each with a callus before the apex. The hinder legs are wider apart than the two other pairs; the tibize are truncated and with an exceedingly minute hook at the in- side of the extremity ; and the thighs are unarmed. The characters of the genus Cenrrinus, as laid down by M. Schoenherr, do not all apply to these insects, which have not “the rostrum as long as the body,” nor “ the eyes distant,” nor “the thorax almost double the width of its length;” and “the club of the antennz” is not very distinctly “acuminated.” The antennze of the sutor ap- proach nearest to the description of those of Crnrrinus, but in the dilectus, the third joint is longer than it is rep- resented to be in this genus. Notwithstanding these dis- crepancies there is no other in which they can be so pro- perly arranged. . From Bariotus, they differ in the form of the body, which is not rhomboidal, nor rounded behind, nor with the anal segment exposed; and the antennal joints are more elongated, and not so closely connected. ‘They re- mind one (particularly the dilectus,) of the genus Bara- niNus, in general form, color, and length of the rostrum ;, . but cannot be referred to it on account of the structure of the breast, differences in the antennz, and other essential characters. * 19. Tomicus? pusILuus. Dark chestnut ; head with erect hairs ; thorax tubercu- lated before ; posterior declivity of the elytra scabrous and hairy ; antenne and feet honey-yellow. Length 6 hundredths of an inch. Halsey’s Collection, No. 260. Dark chestnut-brown. Head covered with long, erect NORTH AMERICAN COLEOPTERA. 83 hairs. Thorax with short hairs, intermixed with elevated, thick points, which are larger in front and sloping back- wards, smaller behind, and disappearing before the mid- dle, behind which the thorax is minutely punctured and subglabrous. Elytra subglabrous, minutely punctured, rough on the posterior declivity, which is covered with short hairs or bristles arranged in longitudinal rows. An- tenn and feet brownish yellow, the club of the former paler. This minute insect probably belongs to the genus Tomt- cus, but, being gummed on card, it could not be sufficient- ly examined. The body is cylindrical, obtuse and ob- liquely truncated behind. The club of the antennz oval, compressed, three-jointed ; the joints transverse, the last one semicircular and largest. The anterior tibize, the only ones which could be seen, were not very much dilated, and had a number of small teeth on the outer edge. ¢ 20. PRIoNUS LHZVIGATUS.* Chestnut-brown, subglabrous; thorax three-toothed ; the last two joints of the maxillary palpi nearly equal ; breast, in both sexes, hairy. Length from 1 inch and 12 hundredths to 1 inch and 52 hundredths of an inch. P. levigatus, Harris. Catalogue, p. —. Halsey’s Collection, No. 227. A male. Cabinet of the Boston Soc. Nat. Hist. No. 1362. male, No. 1360. female. Body chestnut-brown, smooth. Head confluently punc- tured, channelled longitudinally between the eyes; last jomt of the maxillary palpi thicker but not much longer than the preceding one. Thorax short, transverse, mi- nutely punctured; lateral margin horizontal, somewhat dilated, with a prominent reflected tooth on the anterior angle and middle; the hinder angles slightly produced in * Plate I. fig. 6. 84 NORTH AMERICAN COLEOPTERA. the form of a nearly rectangular, short tooth. Scutellum not obtusely and regularly rounded at tip, but subacute. Elytra elongated, somewhat oblong-quadrate, a little nar- rowed behind, slightly dilated at the middle of the sides, glabrous, not rugose, but with minute superficial punc- tures, and two longitudinal nearly obsolete elevated lines on each; sutural tip with a prominent spine. Body be- neath glabrous, obsoletely punctured ; breast with short, silky, yellowish hairs. Legs glabrous, and with small, distant punctures. Antenne, in both sexes, with the same number of joints; in the male the third and following joints are dilated, produced beneath, and imbricated, but not emarginated at their tips ; in the female they are long- obconic, compressed, slender. Last ventral segment of the male deeply indented. This large species differs from the brevicornis, F. in not having the elytra rugose nor confluently punctured ; it is also of a more elongated shape, not so much narrowed behind, the thorax shorter, the anterior tooth of which is much more and the posterior one rather less prominent, and the terminal aculeus of each elytron longer. The brevicornis is of a much darker color, and is easily dis- tinguished from it by its corrugated elytra. The levigatus bears a closer resemblance to the zmbricornis, L., but the antennee of the male, like those of the female, have only twelve joints, and the joints are not so large, and so close- ly imbricated. The color is the same in both, and they are nearly equally smooth; but the elytra of the zmbricor- nis are not very distinctly aculeated. Our species proba- bly approaches to the palparis, Say, which is described as being black, with the last joint of the maxillary palpi very conspicuously longer than the preceding joint. 21. Cryrus NOBILIS.” Black, thorax immaculate ; each elytron with a large * Plate L fig. 7. NORTH AMERICAN COLEOPTERA. 85 yellow spot at base, a minute one on the outer margin be- hind the shoulder, a larger one before the middle, a trans- verse, slightly arcuated, slender band across the middle, and between this and the tip two spots transversely united. Length from 80 to 90 hundredths of an inch. C. nobilis, Harris. Catalogue, p. —. Halsey’s Collection, No. 226. Cabinet of the Boston Society, Nat. Hist. No. —. This fine and strongly characterized species varies con- siderably in the size and distinctness of the elytral spots. Of five specimens, known to me, three have the arcuated band interrupted into three transverse spots, which, how- ever, run together. In one there was the addition of a small, transverse, very faint spot just before the tip of each -elytron; and, in another, the band and all the spots were obsolete, except the round one before the middle of the disc. Jour of these specimens were taken upon Blue Hill in Massachusetts ; Mr. Halsey’s specimen was captured in Hartford, Connecticut. It is closely related to the Cuyrus speciosus, first de- scribed by Mr. Say in the Appendix to Keating’s “ Nar- rative of Major Long’s Expedition to the source of the St. Peter’s River, &c. ;” subsequently described and fig- ured in his “ American Entomology ;” and still more re- cently a figure of it has been published in Griffith’s Trans- lation of Cuvier’s Animal Kingdom, under the name of Crytus Hayu, G. R. Gray. The last name, of course, must sink into asynonyme. ‘The speciosus, besides being larger, has the thorax fasciated, and the elytral bands and spots differently arranged, and is otherwise sufficiently distinct from our C. nobilis. 22. Srenocorus ! LINEARIS.* Testaceous; elytra paler, elongated-linear, separately * Plate I. fig. 8. 86 NORTH AMERICAN COLEOPTERA. subacuminated ; antennz pilose; thorax unarmed, ab- ruptly constricted behind. Length from 44 to 57 hundredths of an inch. Halsey’s Collection, No. 140. Body testaceous, pilose. Head with a longitudinal im- pressed line. Antenne a little longer than the body, joints elongated-cylindrical, terminal one obtusely rounded at tip, and nearly as long and large as the preceding one ; all of them pilose. Thorax a little wider than the head, longer than broad, rounded at the sides, abruptly contract- ed behind, granulated, pilose, and with an impressed dor- sal lme. Elytra paler than the head and thorax, pilose, elongated linear, rugose, or confluently punctured as seen under a microscope, and with three slightly elevated lines ; at tip each abruptly and triangularly narrowed on both sides, with the apex obtuse. Body beneath somewhat glabrous, sparingly pilose. Thighs simple ; tibize and tarsi slender. Entirely distinct as to the form of the thorax and ter- mination of the elytra from our other species of Srenoco- rus, to which genus I have doubtingly referred it. Com- pared with the Srenoeorus rigidus, of Mr. Say, which has also the elytra entire or simply subacuminate at tip, it is a much more slender species, the antennz not spined as in that insect, the thorax is differently shaped, and the color is not decidedly ferruginous, but of a dirty reddish yellow. I have seen only two specimens, one of which was captured in Louisiana. 23. Lanta (Acanruocinus?) oBsoLeta, Olivier. Body above reddish gray, squamous ; antenne of the male very long, annulated with gray and dark brown; thorax bituberculated before, and tuberculato-spinous each side behind the middle ; elytra with dilated punctures, and three undulated, dark brown bands ; tips not emarginated, but obliquely truncated within. at NORTH AMERICAN COLEOPTERA, 8 Length 52 hundredths of an inch. L. obsoleta, Olivier, Entomol. 4, No. 67, p. 130, pl. 13, fig. 90. Halsey’s Collection, No. 121. Body covered above with appressed, dilated, short bris- tles, or linear scales of a reddish-gray color. Front naked, impunctured, with a longitudinal impressed Ime. Anten- nz more than twice as long as the body; joints slender, gray, with the terminal third of each brownish black. Thorax squamous, and punctured ; two transverse, naked, brown tubercles before the middle, and an acuminated one on each side before the base, which is abruptly con- tracted to the width of the anterior margin. Elytra with reddish-gray, appressed scales, and with distant, dilated, dark punctures ; three undulated, ragged, transverse, dark brown or blackish bands, convex backwards, one of which is more obsolete, before the middle, the second most dis- tinct, behind the middle, and the third, narrower, some- what interrupted, before the tips, which are attenuated, obsoletely and obliquely truncated, and divaricating at the suture, but not emarginated as in the cognate species. Legs griseo-squamous ; thighs abruptly clavated, and dark- er; tibia, near the upper and at the lower extremity, an- nulated with black or dark brown; tarsi blackish. Body, beneath, ferruginous, sparingly griseo-squamous ; abdo- men paler. The form of the thorax in this species closely resembles that of L. (Acanruocinvs) acanthura, Harris (Catalogue ;) but the anterior tubercles are quite distinct and not obso- lete as in that species; the intermediate elytral band is much broader; the tips of the elytra divaricate but are entire ; and the antenne are much longer, and more slen- der. This insect agrees with Olivier’s description and figure of the obsoleta, except in being rather smaller. 88 NORTH AMERICAN COLEOPTERA. 24. Lamia (Mesosa) rascicuLanris.* Thorax white ; elytra pale brown, variegated with dusky spots and elevated fasciculated points, whitish at base, and with an oblique whitish band behind the middle. Length 35 hundredths of an inch. Halsey’s Collection, No. 281. Head with a longitudinal impressed line on the front, sulcated between the antenne, which are rather longer than the body, and pale rufous, blackish at the tip of each joint. Thorax whitish, transverse, contracted abruptly behind, gradually before, punctured at the sides, and across the base and tip, rather unequal, with a small tubercle before the middle and one behind it, an impressed short line in the middle of the base ; lateral spines replaced by a slightly elevated tubercle on each side. Elytra pale brown, punctured ; humeral angles oblique ; a faint whitish band across the base, and a more distinct, oblique one, border- ed behind with black, sloping forwards at the suture, just behind the middle; sides between the base and bands dusky ; a small blackish spot near the suture behind the band, and another further back and contiguous to the out- er margin; a subsutural series of small, fasiculated, black points, another on the middle of each elytron, and several rather larger scattered over the surface, particularly to- wards the base, near the middle of which are two much more prominent than the rest; tips of the elytra obliquely truncated. Body, beneath, dusky or chocolate brown, densely covered at the sides of the breast, and sparsely on the abdomen with short, ashen-colored hairs. Thighs blackish brown at base, ashen at tip; tibise ashen, with a narrow blackish band on the middle and a broad one at tip; tarsi blackish. This species closely resembles L. macula, Say, which 1s much more convex, or not so much depressed, proportion- ally shorter and thicker, with a rather narrower, more * Plateweene. 9, NORTH AMERICAN COLEOPTERA. 89 cylindrical thorax, with the punctures of the elytra more dilated, without the elevated fasciculated points at the base, besides other characters which sufficiently distinguish it from the fascicularis. Lamia alpha, Say, is a smaller, more slender, more parallel species, with the dorsal fascia much more oblique, &c. 25. Monorcuus MELLITus, Say. Variety. Black; abdomen honey yellow; antennex feet and elytra rufous, the latter black at the tip. Length 85 hundredths of an inch. M. mellitus, Say. Boston Journ. Nat. Hist. vol. 1. p. 194. Halsey’s Collection, No. 263. A female. Head wider than the thorax, which 1s acutely constrict- ed between the middle and tip. Elytra rufous, each one separately rounded behind and tipped with black. Ter- minal joints of the abdomen blackish above. ‘Tarsi tinged with fuscous. This variety has not been noticed by Mr. Say. Com- pared with the abbreviatus, of Europe, the head is pro- portionally wider, and deeply indented between. the an- tenne ; the thorax is longer, nearly cylindrical ; the elytra are larger, and more obtusely rounded behind. The ab- breviatus is a much larger insect, with the abdomen and tips of the hindmost thighs black, and the elytra immacu- late. The dimidiatus, of Europe, is a smaller species than the mellitus ; the thorax more convex, not acutely con- stricted before the middle, the elytra proportionally long- er, attenuated from base to tip, and more acutely round- ed behind; the abdomen proportionally shorter, with the edges of the ventral segments whitish sericeous. 26. CRYPTOCEPHALUS CANELLUS? Fabricius.* Rufous ; antenne and tarsi fuscous; elytra black with a broad, indented, rufo-testaceous outer margin. Plate I. Fig. 10. 12 90 NORTH AMERICAN COLEOPTERA. Length from 17 to 19 hundredths of an inch. C. canellus? Ff. Eleuth. vol. i. p. 52. C. cinctus? EF. Entom. Syst. vol. i. part 2. p. 63. Halsey’s Collection, No. 176. Antenne fuscous, rufous at base. Front with an obso- lete longitudinal line, and with the thorax rufous, glabrous, impunctured. Elytra striato-punctate, black, with a broad, pale rufous or rufo-testaceous outer margin, which is nar- rower before, broader behind, and dentated near the mid- dle. Scutellum rufous, impunctured. Feet fusco-rufous, tibize at tip and tarsi darker, the former with a broad strong tooth on the outer edge near the end. Body, beneath, dark rufous, obsoletely punctured. This insect agrees better with the description of the cinctus than with that of the canellus. M. Fabricius says that the former inhabits South America and the latter Carolina. It may be a variety of the canellus in which the two black spots run together and unite with the black su- ture. Under this impression, and because it is a North American species, I have described it under the name of canellus, with a doubt however as to its identity. It has the form of Cotasris guercus, S. 27. Gaeruca (ApIMoNIA) cRisTATA.* Black ; thorax rufous with a black disc and two im- pressed spots; elytra with the margin dilated, a lateral elevated and an abbreviated impressed line. Length from 17 to 19 hundredths of an inch. G. A. unicolor, Harris, Catalogue, p. —. Halsey’s Collection, No. 218. Black, above and beneath. Front, between the anten- nz carinated, vertex indented. Antennz about two- thirds the length of the body ; first joint obconic, second globose, third very short obconic, the two together shorter than the fourth, which, with the following ones, is elonga- Plate I. Fig. 11. NORTH AMERICAN COLEOPTERA. 91 ted obconic; terminal joint oblong-ovate, acuminated. Thorax impunctured, quadrate, glabrous, rather broader than long, slightly contracted behind, the lateral edges acute ; convex, black from the anterior to the posterior margin, sides more or less obscurely rufous; a deep in- dentation each side of the centre. Elytra purplish black, confluently but not deeply punctured, oblong quadrate, rounded behind, with the lateral margin horizontally dilat- ed, and elevated on the edge, a submarginal elevated line beginning at the humerus, and on a short, longitudinal fur- row within the elevated line ; base with an obsolete tu- bercular elevation in the middle; suture slightly elevated. Breast, abdomen beneath, and feet deep black. This species probably bears a close resemblance to the atripennis, S., which has the thorax and body beneath ru- fous. The specific name unicolor was applied to specimens in which the rufous color of the sides of the thorax was indistinct or obsolete. 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