L I E) RA KY OF THE U N 1 VLR.5 ITY or ILLl NOI5 From the Library of Professor Henry F. Wickham University of Iowa Presented in 1942 595.76 b57m ^ DEC 5- 1942 HISTORY fx p & ^^^^. j^ -^ Digitized by the Internet Archive in 2010 with funding from University of Illinois Urbana-Champaign http://www.archive.org/details/monographicrevisOOblai SMITHSONIAN INSTITUTION UNITED STATES NATIONAL MUSEUM Bulletin 63 A MONOGRAPHIC REVISION OF THE COLE- OPTERA BELONGING TO THE TENEBRI- ONIDE TRIBE ELEODIINI INHABITING THE UNITED STATES, LOWER CALI- FORNIA, AND ADJACENT ISLANDS BY FRANK E. BLAISDELL, Sr. Of San Francisco, California WASHINGTON GOVERNMENT PRINTING OFFICE 1909 Ca. SMITHSONIAN INSTITUTION UNITED STATES NATIONAL MUSEUM Bulletin 63 A MONOGRAPHIC REVISION OF THE COLE- OPTERA BELONGING TO THE TENEBRI- ONIDE TRIBE ELEODIINI INHABITING THE UNITED STATES, LOWER CALI- FORNIA, AND ADJACENT ISLANDS BY FRANK E. BLAISDELL, Sr. Of San Francisco, California WASHINGTON GOVERNMENT PRINTING OFFICE 1909 BULLETIN OF THE UNITED STATES NATIONAL MUSEUM. Issued June 24, 1909. n ADVERTISEMENT. * The scientific publications of the Xalioual Miis(Miin consist of two scries — the Bulletin and the Proceedimjs. The Bulletin, pubHcation of whidi was bej^iin in 1875, is a series of more or less extensive works intended to illustrate the collections of the U. S. National Museum and, with the exception noted below, is issued separately. These bulletins are monographic in sco])e and are devoted })rincipally to the discussion of large zoological and botanical groups, faunas and floras, bibliographies of eminent natural- ists, reports of expeditions, etc. They are usually of octavo size, jdthough a quarto form, known as the Special Bulletin, has been ado])ted in a few instances in which a larger page was deemed indis- pensable. This work forms No. 63 of the Bulletin series. Since 1902 the volumes of the series known as "Contributions from the National Herbarium," and containing papers relating to the botan- ical collections of the Museum, have been ])ublished as bulletins. The Proceedings, the first volume of which was issued in 1878, are intended as a medium of publication of brief original papers based "^ on the collections of the National Museum, and setting forth newly ■^ acquired facts in biology, anthropology, and geology derived there- 4 from, or containing descriptions of new forms and revisions of limited groups. A volume is issued annually, or oftener, for distribution r^ to libraries and scientific establishments, and in view of the impor- tance of the more prompt dissemination of new facts a limited edition of each paper is printed in pamphlet form in advance. d Richard Rathbux, fj Assistant Secretaj'y, SmitJisonian Institution, rM In CJiarqe of the United States National Museum. '^ Washington, U. S. A., Maij 15, 1909. |> m W CD I 1 95286 PRE FAT K In 1001 wlien work was first seriously l)o Eleodes quadricollis. .y. 81 } Eleodes quadricollis var. anthracina. x. 87 ^ Eleodes quadricollis var. lustrans. .< 89 >; Eleodes cuneaticollis. .^ 91 <' Eleodes humeralis. ^ 95 ■ 3 Eleodes rileyi. .yf 100 Group II. — Tricostata section 104 / / Eleodes tricostata . r^ 104 / a- .' ' Eleodes pedinoides.r 109 ^ Eleodes pedinoides var. neomexicana Y. • 113 Subgenus Litheleodes 114 Analytical key to species of Litheleodes 116 / } > Eleodes arcuata. } 116 ,•. V^ Eleodes extricata.v 121 v^ Eleodes extricata var. arizonensis.': 125 /," >-- Eleodes granulata. 127 ■ ■J 'Eleodes letcheri.>rr 133 •;-'' Eleodes letcheri var. vandykei. .^ 136 Subgenus Tricheleodes 138 VII VIII TABLE OF CONTENTS. Subgenus Tricheleodes — Continued. Page. Analytical key to species of Tricheleodes. . . 138 /'' »' Eleodes hirsuta.!^ 139 fi 'S Eleodes pilosa. ".-^ 142 Subgenus Pseudeleodes. 146 iq -' Eleodes granosa.t^ 147 Subgenus Promus 152 Analytical key to species of Promus 156 -5 - 3, Eleodes insularis. .'C 156 'y ' J Eleodes 8ubniten8.'<^ 161 >-' iv Eleodes goryi. . > 164 •t -'■> l" Eleodes striolata.^. ' 168 t-' 9-. Eleodes fusiformia.>r 172 > n' - "Eleodes opaca. : 175 Subgenus Ileteropromus 179 ff- " Eleodes Vetera tor. yT 179 Subgenus Eleodes 183 Analytical key to groups of subgenus Eleodes 184 Group Obscura 184 Analytical key to species of Obscura group 185 3? 3'. Eleodes obscura.. y. 187 3 Eleodes obscura var. dispersa. Y. 190, 191 ? , Eleodes obscura (typical variety) ."< 190, 193 V. Eleodes obscura var. sulcipennis. >C 190, 194 *« '^ Eleodes arata..\:^.^.<».*V.'^:*r?:.'^..^?/.- 194 "^ t J Eleodes acuta. /.. 195 ?* '. Eleodes suturalis. X 199 ■ Eleodes suturalis (typical variety).^ 202 'Eleodes suturalis var. te.xana. . >-. 202 Group Grandicollis 205 3/ V, Eleodes grandicollis. . T. 207 Group Dentipes, section A 211 Analytical key to species of Dentipes group.. s'.C.r 212 S' v Eleodes sponsa...'^ 213 3 ^ k ' Eleodes hispilabris."i 217 i*-' *• Eleodes caudifera. '-. 225 ->>r v/!^ Eleodes longipilosa. ^. '. 230 Group Dentipes, section B 234 Analytical key to species of Dentipes group. .4';C. d.-. 234 5 C J' Eleodes gracilis 237 V Eleodes gracilis var. distans.*:' 242 J? y Eleodes subcyliudrica.\ 246 it -.'' Eleodes subpinguis.". 247 ^ f /-Tlleodes dentipes. V. 251 v« ,J(. Eleodes arraata. .^ 259 >; T Eleodes armata var. impotens.^ 263 •// V J Eleodes militaris. y 267 •j'7 Eleodes militaris var. femorata.'*^ 272 ■ 285 i 9 Eleodes eschscholtzi var. lucae.*! 289 i.(/ i^ Eleodes tenuipes. .Y. 294 y /«. / ,. -Eleodes wickhami. .T^ 297 TAJiLE OF CONTKNT3. IX (Jroup Dentipes, section 15 — Continued. Vane. ^'" '' '■ KleotloH vcntricosa. x :U)0 Kleotk's ventricasa \ ar. falli. y. :',():, SubgenuH Biapylia •. ;iO(J Synopsis of genital characters 310 Analytical key to species of subgenus lilapylis 311 •/ V . 32f) ^^y t,a Eleodes con.». 350 yj yj Eleodes parvicollis.yi 354 ^ / Eleodes parvicoUis var. planata.>r 359 ^ Eleodes parvicollis var. producta.X 362 ^i Eleodes parvicollis var. constricta.v 365 ^ %i4 Eleodes hoppingii. >. 368 (^o f J" Eleodes clavicornis.'r'. 371 ^ / /6 Eleodes scabrosa. yl 375 ^^ ^-^ Eleodes cordata. . .*r 379 ^j Eleodes cordata var. rotundipennis.^ 384 i 3 ¥> Eleodes pimelioides. .Y. 384 /» Eleodes ])imeIioides var. brunnipes.V. 386 i w 7; Eleodes caseyi. .y. 388 Subgenus Metablapylis 391 Analytical key to species of subgenus Metablapylis 393 ^ J- '7 j-Eleodes nigrina . y 393 -^ -tEleodes nigrina var. perlonga.^. 398 ^g <^u Eleodes dissimilis. .-. 398 /; "Eleodes dissimilis var. nevadensis. Yl 402 i ■> 'Eleodes schwarzii. .v. 406 Subgenus Steneleodes 409 Analytical key to species of Steneleodes 411 IT. cp Eleodes gigantea...'r 412 nf Eleodes gigantea var. gentilisA 416 A,. Eleodes gigantea var. estriata.'!' 421 ^< 39 Genealogical diagram of the subgenus Promus 156 Genealogical diagram of the Obscura group, subgenus Eleodes 186 Genealogical diagram of the Dentipes group, section A, subgenus Eleodes 212 Genealogical diagram of the Dentipes group, section B, subgenus Eleodes 236 Genealogical diagram of the subgenus Blapylis 309 Genealogical diagram of the subgenus Steneleodes 411 Genealogical diagram of the genus Embaphion 452 PLATES. Facing page. 1 . Genital characters of the Eleodiini 524 2. Genital characters of the Eleodiini 524 3. Genital characters of the Eleodiini 524 4. Genital characters of the Eleodiini 524 5. Genital characters of the Eleodiini 524 6. Comparative and genital characters of the Eleodiini and related tribes 524 7. Topography of the genital segments of the Eleodiini 524 8. Anatomy of the Eleodiini 524 9. Homology of the genital segments of the Eleodiini 524 10. Pronota of the Eleodiini 524 11. Pronota of the Eleodiini 524 12. Pronota of the Eleodiini 524 13. Early stages of the Eleodiini 524 A MONOiillAIIIlC IIRYTSIOX OF TIIK rOLKOPTKKA P,KLON(;i\(; TO TIIK TKXKIIKIOMDK TIIIHK KLKODIIM IMIAIHTIMi TIIK IMTKI) ST.VTKS, LOWEK CALIFOKNIA, AND ADJACENT ISLANDS. hy Fhaxk E. Blaisdkll, Sr., Of K«/i Francisco, California. INTRODTTCTION. Since the publication of the Revision of the Tenel)rioni(la^ " no attcmpl has been made to treat the Eleodiini in a revisional wav. Material has been constantly accuinulatin<2: in collections, initil it has become a very perplexin^r problem to refer it in all instances to species already named, or to correlate the nnmerous variations so evident in many species. At first I had intended to simply deal Avith the species of the ^enus Eleodes, but little by little I was induced to include all of the genera constituting the tril)e as limited by previous authorities. My method has been radically different from any heretofore pur- sued in the United States and it has been a laborious one. In the following pages I have set forth the results of my investigations and deductions which have been earried on during past five years. About one thousand specimens have been dissected during this time and ovei" five thousand studi(>d su|)erfi('ially. T became convinced from the results ])reviou>-ly aiTi\ ed at by othei" wiiters on the family that all methods resorted to had been inade- <|uate for the ]>roper understanding of species that are so polymor- jihous and i)resent such a comuninity of habitus. I decided to carry on a study along the lines of piimary sexual chaiactei's. and if possible to investigate the mouth-parts and then to correlate the data obtained witii characters alreailv known. ".\iiu'r. riiil. Soc, XIV. 59780— lUilI. («— 0!) 1 2 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. The first part of my task was perfectly feasible: but not so with the mouth-parts, on account of tlie necessity of mutilating the speci- mens. The first species were named l)y Thomas Say in tin* year 1828. He placed them in the genus Blapx. Eschscholtz a few years later" erected the genus Eleodcs^ describ- ing several species. Mannerheim still later ^ described a few species, redescribing some of Eschscholtz'^s species with references to the original descriptions. Then followed the period between the years 1S58 and lSri,>, the most active in the making known of new species, during which Dr. John L. LeConte described more species than any previous author. Later a number of his species were suppressed by Dr. (ieorge Horn, Avho from 1874 to 1891 occasionally described new species. JSIany of the species suppressed by Doctor Horn have been restored to specific standing in the present paper. Doctor Horn was too conservative and his knowledge of the species was based upon char- acters that were too superficial. Thonuis L. Casey described Eleodes arcuatus in 1884; nine others in 189(),'" and three more in tlie sixth volume of the annals of the same society. In 1002 I described Eleodes interrupta from an anomalous speci- men of E. omissa; in 1895 E. impotens, a race of armatu, and E. con-finis, the latter no doul)t being an incipient race of E. dcnfipes. LeConte's E. Kcriata proved to be identical with Goryi, described by Solier from Mexico. Lacordaire ^ explains the generic term Xysta as follows : I^e menton * * * ost compose do trois parties : iiiio modiano do forme variable; et deux laterales en forme d'ailes, placees sur im plan plus interne, tranehantos latoralemont. ot d'antant plus larjros quo la premiere est moins doveloppoo. ('"est sur la forme de cot organe qui Eschscholtz s'otait base pour divisor lo fionre on deux. II donnait le neni de Xysta aux esp^ces qui ont la luirtio niodiaiio tros-dovoloppoe ot arnmdio on avant, ot rosorvnit oolui tl'EJioilrn jl cellos on son bord antoriour est rolrooi ot plus on nicnns trlaufrulaire, mais il y a outre cos deux formes des passages qui lour enlovent la faible \aleur qn'elles poiu'raiont avoir. In a footnote he says: Eschscholtz en indique quatre espeoos [fjrarifla. nnf/iihitn, rotundicnU\f>. xitl- cata] [belonging to Xysta] du Mexiiiue, mais il y en a beaueoup d'autres. la trirofitata par oxeniplo, ♦ * * ciioz la i>lupart do cos esinVes. les ail(>s lat- oralos du menton otant petites. paraissont an iireujior ooup-d'rpil, no |ilus oxister, mais, avec un pen d'attention on les dooonvre sans peine. "Zool. Atlas. lS12n 1S3.1. I-V. &Bull. Mosoow. 1S4:^. c Annals X. Y. Aoad. Sci., V. ^ Genera, p. 149. REVISION OF KI.KODIIN'I— I5I,AIS1)KIJ,. 3 Kirby" doscrihos J'inuHa an(ic;o apice liispinosjp. Antemuo arti(MiIf» torti(v scfinciiti dupio lonfiioiv, ultimo acinuiiiato, tribiis anticedentibus suhfrlohosis. Laliiuiii apico latins. plMimiii. Elytra (."iriiia laterali. Mas sejiUR'nto hasali abdoiiiiiiis pcopifero. EU'odcu. — AnteiiiiiP articulo ultimo trausvcrso, dnohus autotvdciitilMis. rotun- dis couiprossis. torlio sotpienti duplo lonjiioro. Labium a|)i(,v anj;ustius triaufiu- laiv. Clypous indistiuctus, ant ice knitcr eniarjrinatus. .V//.s7h.s'. — Antenna^ artii-ulo lUtimo trausvorso, duobus antecedent ibus, rotundis compres-sis, tortio soqucuti duplo louiriorc. T.al)ium transvcrsuui, medio dila- tatum, apice rotundatum. Clypcus indistiuctus, eniarjiinatus. Xi/cirrhiKs. — Antenna' articulo ultimo trausvcrso, tribus antecedent ibus com- jiressis, tertio secjuenti pnruni longiore. Labium apice latins. In the synopsis Tagona precedes Blajys, and Prosodes between Blapa and Eleodes^ XycterinvK between Xystvs and Amphidoro. The characters used are very variable. I have not had an o[)i)()rtimity to study Xycterinus. I have a species from Northern Chile that I believe belons as very numerous in Europe, Asia, and Africa. I hope this work may be the forerunner of others upon the Tene- l)rionida\ and have therefore taken the opportunity to place before the American student many suggestions that would be out of i)lace in an ordinary revision. I sincerely trust that my colleagues will continu*' to aid me in the future as they have done in the past. " Fanua noreali-Americana, IV, l.s;^,7. jt. •j:',l». '^Zool. Atlas. Ill, ]M2'.». "Catalogus Col., VIL 4 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. ACKX( ) W LEIX {M ENTS. It is a great pleasure to acknowledge the generous loan and gift of material, as follows: The United States National INIuseinn in Washington made the loan of 1,914 specimens, which Avere transmitted to me through the kind intercession of Dr. L. O. Howard. This material was of invaluable aid and of great interest, as it contained material from the collections of the following Aveli-known entomologists: H. G. Hubbard, E. A. Schwarz, C. V. Eiley, H. Soltau, E. J. Oslar, D. W. Coquillett, H. K. Morrison, M. L. Linell, J. B. Smith, J. D. Mitchell, H. S. Barber, C. F. Baker, and A. S. Fuller. Mr. Charles Fuchs and Dr. E. C. Van Dyke put all of their material at my disposal. I am especially indebted to my friend, Henry C. Fall, for the com- parison of material Avith authentic types in the collection of the Mu- seum of Comparative Zoology in Cambridge, Massachusetts, and for the loan of species not well represented from other sources. To Mr. Frederick Blanchard, of Tyngsboro, Massachusetts, I extend my sincere thanks for his painstaking care in the comparison of many consignments of specimens from my collection with the Le- Conte types in the collection of the Museum of Comparative Zoology in Cambridge. His valuable notes and short descriptions aided me greatly, and without which I could not have written so authorita- tivel3^ At his request Mr. Samuel Henshaw, curator at the museum in Cambridge, very kindly transmitted to me one of LeConte's speci- mens of Eleodes (jentilis. At my request Mr. Charles Liebeck, of Philadelphia, looked up the literature on BIops and made notes on specimens in the collection of the Academy of Science in that city. Prof. H. F. Wickham, at the sacrifice of his own limited time, most kindly looked up literature upon the tribe now under consideration, and those references that could not be obtained upon this coast he copied and forwarded to me, namely, the original descriptions of Mannerheim. I must also thank him for the loan of material, espe- cially for specimens taken in Texas, Nevada, and New Mexico. I am indebted to Mr. Ralph Hopping for the examination of the material in his collection, especiall}' that from Tulare County, Cali- fornia. I had the privilege of studying a collection taken at Fort Tejon by Messrs. Hopping and Fuchs. Prof. J. J. Rivers presented me with a series of Eleodes taken at Ocean Park, Los Angeles County. Dr. C. F. Clark most kindly contributed a collection of Eleodes taken in Napa County, California. RKVISIOX OF ELEODIIXT BLAISDELL. 5 Mr. Wanvn Knnus very kindly aided me by the loan and gift of most interestinir material collected in Kansas, New Mexico, and Colorado. The late Beverly Letcher permitted me to stndy a series of speci- mens that had been collected aloni; the Colorado IJiver in Arizona. Lieut. Col. Thos. L. Casey donated several of his species and other specimens. HI codes r'dei/i was of particular interest. The California Academy of Sciences, of San Francisco, placed its material at my service. The collection was of more than ordinary interest on account of material from Lower California. Mr. Fordyce (Jrinnell gave me a series of specimens tak'cn in Kern County, California. I received from Mr. Edward Ehrhorn a small collection from the mountains at Monte BeHo, near Mountain View, Santa Clara County, Califoi-nia. My friend and colleague. Dr. William Lee Moore, and his son Edgar, collected a large series at Verdi, Nevada, and sent the same to me. My mother, Mr^. Anna G. Blaisdell, gathered an immense series at San Diego, California, and transmitted most of them alive for special studies. Mr. Albert Koebele very generously gave me a series of specimens taken about Nogales, Arizona, and also permitted me to study those in his collection. Mr. F. W, Nunenmacher also supplied me bountifully with speci- mens from about Nogales. Dr. A. Fenyes very kindly sent me material for examination and study. Prof. F. IL Snow, of the University of Kansas, ])ermitted me to study and identify luimerous sjiecimens collected by himself in Arizona and elsewhere. Dr. R. IL Wolcott, of the University of Nebraska, transmitted to me the entire collection of Kleoden of that institution for study, and also a collection of Mexican s])ecies. I most sincerely thank Mr. Charles (). Waterhouse, of the British Museum, Cromwell Koad, London, for a .series of Blaps^ Avhich he vei'y kinclly loaned in r('sj)onse to my re(|uest. ^liss Julia A\'right, of l*alo Alto, California, allowed me to study the native species in her collection, also a collection of Blnjis obtained by her while abroad. I also looked over the collection in the entomological depart- ment of Stanford L^niversity, through the courtesy of Prof. Vernon Kellogg. It is my duty and pleasure to thank all who liave so ])romptly aided me, and especially my intimate associates, Dr. Edwin C. Van 6 P.rLLETTX 63, I'XTTF.D STATES NATIONAL MT'SET'M. Dyke, Charlos Fnchs. nnd the late Beverly Letcher for their en- couragement and advice. Without this material find moral aid the present work could not possihly have been as complete as it is. METHODS OF STUDY. All comparative measurements have been made from outlines drawn by aid of a binocular microscope with either a ^, 1, 2. or 8 inch objective and a camera lucida. The legs were measured directly with a finely divided metric ruler, under a hand lense. Fresh specimens were hardened in alcohol or a two per cent solu- tion of formalin: dried specimens were (juickly relaxed in hot water. To determine the relative length of the antenna' — the parts being relaxed — the head is either retracted or extended so that the apical margin of the pronotum corresponds to the posterior margin of the tempora. (See line C, Plate 8, fig. 1.) The antenna is then thrown back over the disc of the j^ronotum so that it falls a little within the basal angles. If it does not reach beyond the apical three- fourths of the i)ronotal disc, it is said to be s/iorf: if it reaches to the basal margin it is moderate in length ; if beyond the basal margin it is lon(f. Qualifying terms are used to express nearness to these points. This method is arbitrary, but sufficiently correct for all ]U"actical ])urposes. if cai'e be taken to have the head in the proper position. In determining the relative width and length of the head a tracing is made, care being taken to have the surface plane parallel to the focal ])lane of the microscope. The drawing is then tivated as in fig. 1, Plate 8. A line is drawn transversely, just touching the i^os- terior margins of the eyes and called the po-st-nuurihud ocular line, fig. 1*'', Plate 8. A second line is drawn from a point on the post- marginal line midway between the eyes to the miildle of the anterior nuirgin of the epistonia. and termed the interlocular line (fig. la, Plate 8). Ijine h })ractically divides the liead into equal halves, near enough for our }Mirpose. If the distance acro^is the widest or most prominent part of the eyes is twice the length of line a, {\\v head is said to be moderate in width; if less, the head is Ioikj, and if greater it is u'ide or broad. The jiroper (jualifving terms l)eing used to exi)i-ess n<'arness to or extremes of these relative dimensions. For <'xami)le. the head may be said to be longer than wide, somewhat longer, oi* distinctly longer than wide. The head is sub(|uadrate, and if line a be onedialf the total h'ugth. and if the width be twice line a. the head is as wide as long, Thi' labrum can not be iucludeil in the measurement as it is not fixed. Vov the renioxal of the genital segments the ])arts must be soft :ind llexible. In cabinet specimens hot water swells tlu' soft i)arts. REVISION OF F.Lr.ODIINI nLAISDHIJ.. 7 SO tliat Ihcy a])i)r(>.\iiiiiit(' their IVcsli coiidition. The sporiiucii. when ready, is and cer- copoda, genit^d fissurt'. and inferior pudendal membrane. Parts to observe about the male organs: Dorsal surface. — (ieneral surface contour and form of the edeago- phore and its l)asale and aj>icale, jnvsence or absence of a membranous area or groove. Ventral surface. — General form and condition of the membrane, ahv; clavu'. form and relation to the edeagus; degree of inflexion of the sides of the basale. In the male the sternite of the seventh seg- ment must be removed separately and studied in conjunction with the edeagophore. It is of value in classification. Prepare and mount as the other organs. In order to study the relation of the sclerites of the retractile seg- ments and reproductive organs, clear with licpior potassi. The study of the tarsi should Ije most carefully done. T have used a bull's-eve condenser for concentratinff the lijrht, and while holding 8 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. the specimen in the light in the mo«t convenient position I have examined the tarsi with a hand lens, for the small*species using the compound microscope. The first three joints of the anterior and those ot the middle tarsi should be most carefully examined under different angles of illumination. Many specimens have the hairs or spinules rul^bed off; if possible use perfect specimens. A study of the mouth-parts, while exceedingly desirable for the purpose of correlation with the genital parts, is not possible without dissection and mutilation of the specimens. In many instances, nevertheless, this has been done, especiall}' when the material war- ranted it. C a It f ion. — The student must bear in mind not to accept measure- ments representing length, breadth, and thickness in a literal sense, but only as indicative of relative proportions. GENERAL EXTERNAL ANATOMY. The following results have been obtained chiefly from a study of Eleodes dentipes. Form variable. Integuments usually strongly chitinized. Head (Plate 8, fig. 1) (juadrate, uearlj' encircled by a rather broad impression, which is strongly marked behind the gular peduncle and buccal fissures, less so behind the tempora. sometimes feebly indicated across the dorsum. By this impression the epicranial wall is divided into two regions, the occipital and fronto-buccal. The epicranial sutures are mostly obsolete. The occipital region is globular and condylar, and the surface more or less finely granulato-punctate; the foramen usually vertical!}' oval, superior margin bisinuate. sinuations separated by a median subtriangular process, inferior margin broadly sinuate and straight between the gular .sutures. The superior and visible portion of this region forms the vertex. F I'onto-h uccal region moderately depressed, surface lines converg- ing to meet about a length of the region in advance. Frons more or less transverse, never strongly convex; limited laterally by the eyes and the more or less prominent and arcuate preocular frontal ridges, which thicken and descend in front of the eyes to their inferior fourth, artictdating with the genu* below. The inflexed and externo- anterior surface of the frontal ridges are excavated, forming the antennal fossie, the anterior margins of which bear a narrow oblong- oval mandibular condyle, just behind the lateral frontal suture. The anterior frontal margin is deeply emarginate. middle three-fifths of the emargination straight, sides prominent anteriorly forming the frontal angles, (he internal margins of whicJi are straight and an- teriorly divergent, forming an obtuse angle with the middle of the REVISION OF KI.KODTTNT BLATSDET.L. 9 emar^inatioii. the latter i-('c('i\iiii:- tlic base and (»l)li([iH'ly tniiicatf basal aiis cvidfiit frontal suttiiv, tlu' lattcf soiiu'tiiiics apparent ly siiniatc at middle. Ki>isti)iiii( t ransvcfse. surface ni«»re or less plane to feebly convex; base embraced by tbe anterior maririn of tlie frons (see Plate H, fiir. 1) ; sides sti'aiirbt antruncate against the genae ventro-anteriorly. rounded somewhat behind this point and continuously so with the arcuate posterior margin; the anterior margin is broadly and evenly emarginate, adapted to the defiexed frontal ridge, and briefly so to the superior genial angle. Surface finely faceted and not setigerous. (hdar rrglon^ besides being punctato-granulate, is finely and ir- regularly or transversely regulose. The gular sutures are widely separated inferiorly at the sides of the occipital foramen, and some- what arcuately converging anteriorly to become nearly contiguous at a point, whose distance behind the base of the mentum is equal to the width of the gular peduncle, and continuing forward for a short distance to become divergent, passing to the mental angles of the peduncle, bounding laterally the small triangular submentum, whose base is usually a little hmger than one of its sides. The transverse cephalic groove is strongly impressed across the apex of the submentum, becoming less so outwardly just behind the posterior boundary of the buccal fissures. < rid (I I' jH'dinic/e short and slightly defiexed, formed by the sub- mentum, whose base forms a free margin, to which is attached the mentum. Gvla. — Between the gular sutures posteriorly is the subtriangular gula. whose base forms the straight inferior boundary of the occipi- tal foramen. Lah/'i//)i more or less transverse, sinuate at middle, sinus rounded, lobes rounded and continuously so with the sides; surface feebly convex, punctate, seta; longer latero-anteriorly, and decurved : the anterior niaigin each side of the central sinuation, ju.st beneath clothed witli dense transverse tufts of golden pubescence {lahral tufts), which are directed downward, inward, and slightly forward. Mentum variable, internally giving attachment to the labium; apex of middle h)bi' free. (See descriptions of specie.s.) Antenna' variable in length. The outer three or four joints are always more or less feebly compressed and slightly dilated; second joint always shoit. fie(iueiitly wider than long, and subannular: the tliird always long, from three to five times as long as the second and usually about as long as the fourth and fifth taken together: the fourth and liftli may be e(jual in length, or the former a little the longei-; fifth, sixth, and seventh usually about e. el>ewhere the surface is shining and very glabrous. Galea of one joint, sulttriangular ( variable in the ditferent species) ; external surface evenly convex and glabrous, limited aj)ically by a dense and eveidy transver.se row of rather short s|)inules. immediately beyond which the a|)ex is den.sely set with rather long, incurving .spinule-like lilia. 12 P.ULT.ETTX 63, I'NTTED STATES NATIONAL MUSEUM. Cardo siibparabolic in outline. Conical eminence at base of palpus (|uite evident, l^alpus and ])alpi,pimeron is rhomboidal. with its in- ferior border bounding the mesacetabular recess externally; scarcely twice as wide as long, obliquely placed between the mesosternal epi- sternum in front and the metasternal episternum behind, and if its posterior mai'gin l)e jirolonged as a line it will touch the internal angle of the metacoxa of the same side. The sujx'rior margins of the mesosternal episterna and (^jiinuM-a are inflexed beneath the inferior epipleural margins of the elytra, at the line of inflexion where they pass under, the surface is grooved and beveled to receive and hold the elytral nuirgins; the inflexed portions are continuous with less strongly chitinized dorsal and undifferen- tiated sclerites, which with similarly inflexed parts of the metasternal HKVISION (IF KLKODIINI — BLAISDHl^L. 15 episterna, form hclwccii (hem the liouiidarics of :i rather larfr<' fossa, in (ho doej) and somewhat anterior wall of which is situated the meso- (hoi-acic stigma. This stiijmatic fossa is situated innnediattdy within the nicsosternal epiniera under cover of the elytra. Metasteriunn short, the median part or hody is sub(iuadrate, some- what equal in length to the alxlominal interroxal process, anteriorly entering l)etween the mesacetabula (piite e(|ually with the mesosterual salient and forming with it the Interstcnial Hntxire; the Litter is either straiglit or arcuate, according to whether the intercoxal processes are truncate or more or less rounded — ^a variable condition even within specilic limits; posteriorly the border is transverse, not in the least entering between the metacetabula. The sides of the body are produced laterally, nnich narrowed be- tween the mesacetabula in front and the metacetabula behind to expand somewhat triangularly more externally agaijist the episterna, as the ahe. The anterior borders of the ala*. laterad to the intercoxal process, are arcuately reentrant to form the posterior moieties of the mesacetabula; the posterior borders of the ahe are less strongly and arcuately reentrant to form the anterior boundaries of the metrace- tabula. The basal borders of the alae are very feebly reentrant and rounded to fit the feebly arcuate edges of the episterna. forming the metasternal sutures, each extending from the external angle of the mesacetabular recess in front to the external angle of the metacetab- ulum behind. The anterior basal angle of the metasternal ala is shut oti' from the externo-posterior angle of the mesosternum by the mesosternal epimeron at the external angle of the mesacetabular recess; the posterior basal angle of the ala is prevented from meeting the first abdominal segment by the interposed epistenium at the ex- ternal metacetabular angle. Mrtiisfc)'))(i] ejyi.stcniuni. — -Elongately subrhomboidal. slightly wid- ening at middle, thence feebly narrowing to the posterior border, about three times longer than wide and about three and a half times longer than the mesosternal e|)imeron; base obliquely truncate and connate with tlu* jxisterior ^^ih^i.' of the mesosternal e[)imer()n, forming the niesei)imeral suture; internal boi-der feebly arcuate and connate with the ba>-e of the metasternal ala: the external margin is straight and adapted to the inferior epijileural margin. The posterior edge internally is somewhat iuHexed at the external angle of the metace- tabidum. externally giving attachment to the small subacutely digiti- forin metasternal epimeron. which is feebly and inwardly arcuate, resting in a -mail depression on the surfa<'«' of the first abdominal segment at the externo-anterior angle, and bi)unding the metacetab- ulum at its external angle. The metatJwracic nthpna is situated immediately opposite to the posterior extremity of the metasternal episternum and under cover 16 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. of the el3'tra; unlike the mesothoracio stigma it is surrounded by the soft cuticle; it is large and deeply inijiressed and»the rimn stigmatis is antero-posteriorly directed ; that of the mesothoracic stigma is di- rected antero-internally. The doraut/i of the //lexothont.i; is more or less chitinized laterally, less so at middle behind the scutellum. Invisible without removal of the elytra. The dortiiun of the metathorax is membranous except laterally Avhere the episternum extends inward for a short distance beneath the epipleura. The proacetahida are quite circular, except at the internal margin where the intercoxal prosternal process dilates slightly and impinges upon them. The mesacctahida are quite circular if the recess for the trochan- tine be not included, with that it is slightly transverse. The anterior margin of the acetabular recess is more or less angulate from the truncate externo-posterior angle of the mesosternum ; the posterior margin is continuousl}'^ arcuate with that of the acetabulum proper. The metacetahida are slightly more transverse, but slightly and obtusely angulate anteriorly where the posterior angles of the meta- sternal ahe form their boundary. The frocovw are globose. The mesocoxce are really slightly transverse, but subdivided by an antero-posterior impression into the rounded coxa proper and the outer and smaller division, — the trochantine which occui^ies the ace- tabular recess. The coxa proper is quite broadly and outwardly im- pressed from the articular cavity to the trochantine. The metacoxa' are more transverse, ovate and not divided by an antero-posterior impression : the surface of each is broadly and strongly grooved external to the articular cavit}'. The trochmdcra are small and ovate, scarcely forming a half of the width of the basal extremity of a femur, and but a little longer than wide. The crural characters are given uudiT the difl'erent specific head- ings.* For a study of the relative lengths of the dili'erent segments see diagram, fig. 4, Plate 8. The grooves on the inferior surfaces of the femora I have denomi- nated as the tihial grooves; because they are adapted to and receive the tibiae in extreme flexion. Likewise the grooves observed on the external surfaces of the tibia' T call the tarsal grooves. These tarsal grooves are not always present in the different species: when present they extend from the more or less open articular cavities on the tibial apices, to become evanescent at varying distances from the same. These tarsal grooves receive the tarsi in hyperextension. REVISION OF KI.KODIINI FiLAISDKLL. 17 The tarsi ai-c ^^rooxod IxMicatli hy the phiiitar grooves. Eacli tarsal joint is more or less obconical and fjrooved beneath. The sides of the groove are set with a row of mnvijiixtl sp'tnnhx, the apieal niaririn also hears ji row of tipicdl .sp'tnides. At the apex when* the apical meet the mar«riiial row, the spimiles are usually long^er and more eonspieuons as acute tufts; these are the (tpiro-marf/itial tufts. (See Plate S, fin;. L>i>i(;.) , The first two joints of the anterior tarsi are frequently thickened and somewhat produced at ai)ex beneath (Plate s. H, fig. 19.) Ahdonte)!. — Ventrally there are only five visible segments, wliile dorsal ly there are six. Morjihologically the first visilile ventral segment is the second; the study of the retractile segments requires that this ho, recognized as such. The first segment dorsally in the mid-line is as long as the second; laterally it gradually narrows so that it j)oints at the bases of the metasternal epimera. \'entrally the first segment is greatly reduced, and although un- differentiated it forms a part of the metacetabular walls, reaching the sides of the abdomen to appear as a small and short sclerite, con- nate with the externo-anterior angle of the second segment (first visible), dorsad to the base of the metasternal epimeron. and at the point where the evident dorsal membranous first segment reaches the alidominal uiargin. There are six pairs of ahdoin'uuil .stdjNiata, and in the mal«' .in^ located on each side as follows: The p'rsf sfff/nui is situated about .', mm. aljovc the posterior margin of the metathoracic stigma. The second is about 0.8 mm. above the lateral edge of the second ventral (first visible) segment and on a line drawn transversely across the posterior margins of the metacetabida. 59780— Bull. 03—09 2 18 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. The tJih'd is O.O mni. above the basal angle of the third ventral (second visible) segment. • The fourth iminediatoly above and close to the inner membranous edge and basal angle of fourth ventral (third visible) segment. The fifth is in the same position relative to the fifth ventral (fourth visible) segment, and only partly visible without traction on the sixth tergite or a voluntary extension of the same by the insect. The sixth is in the same position relative to the sixth ventral (fifth visible) segment as the fourth, but entirely invisible Avithout trac- tion on the sixth tergite. It is distinctly smaller than the other stigmata and is overlapped by the lateral fold or edge of the sixth tergite and also by the apical fold of the fifth. At this point the The tergite of the sixth segment (Plate 7, figs. 2/>> and •!/>) is the other segments. The first three pairs of stigmata are the largest, the fourth and fifth are slightly smaller. The tergite of the sixth segment (Plate 7, figs. 2/; and 4/?) is moderately chitinized and flexible, evenly and arcuately rounded at apex, the margin set with short setae and sparsely so over the dorsal surface apically. The sternite is strongly and firmly chitinized and constitutes the so-called fifth visible ventral segment. Retractile segments. — Four in number and homologous to those of Hydrophihis piceus as figured l)y Packard." Serenth segment. — The tergite and sternite are chitinized and very flexible. The tergite is short, broadly, and not strongly arcuate at apex, most strongly chitinized laterally and quite membranous at middle; margin frimbriate with short setiB and the dorsal surface sparsely pubescent. (Plate 7. figs. 2/' and 4r.) The lateral angles at base articulate with the lateral and basal angles of the sternite and in both sclerites these angles are more strongly chitinous than the other parts of the same sclerite. This articnlation is stronger in the male. The sternite is ditt'erent in the sexes. (See figs. 2 and ."), Plate 2, and figs. \e and 3'.) The external basal i)roc- esses articulate with the tergite of the same segment as described above. The eightJt scf/nioif is membranous in both sexes. The tenth segment is al)orted in the female as usual, the tergite fusing with the ninth tergite to constitute the supra-anal plate. (Plate 7> fig. \q.) In the male the tergite of the tenth segment forms the supra-anal plate: the subanal or sternal wall is mem- branous in both sexes, possibly somewhat chitinous in the mah". The supra-anal plate is more strongly chitinous laterally and more membranous at middle (Plate T, figs. '2q and 4y) and is in relation laterally with the paranal plates or sclerites. In the male these paranal sclerites are much smaller and l(>ss tri- angular than hi the female, and articulate with a chitinous rod on each side; these rods converge anteriorly so as to form a Y-shaped support and a mechanism for the extension and retraction of the edeagophore; they are wholly internal and give attachment to muscles and ligaments. The paranal plates in the female are irregularly subquadrate, occupying the lateral wall below the supra-anal plate. Each i)aranal sderite may be said to present for examination four borders: a superior, posterior, inferior, and an anterior: four angles: the antero- inferior and postero-inferior being the most important. The superior border is connected to the sides of the supra-anal plate by membrane, apparently forming an articulation at its antero- superior angle with the antero-external angle of the anal plate; the posterior border is connected by articulating membrane to the basal margin of the ventral plate or valve; the inferior border gives attach- ment to the membrane of the ventral wall, and the (interior border giving attachment to the membrane of the eighth segment. The (intero-eentnd angle is short and ai)parently give> attach- ment to nuiscles and ligaments which steady the plate against the valve. The postero-rentral angle is produced into the process of the paranal plate to articulate vrith the strongly chitinized basal margin of the ventro-lateral plate of the valve, of the same side and upon which the valve plays during abduction and adduction. (Plate 3. fig. \a.) The above description of the retractile segments has l>ecn founded upon those of Eleodes eordata^ as illustrated in Plate 7. The seg- 20 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. nieiits wore sliulied l)<)th as (»i):i([U(' ()l)je'cts and cleared with liquor potassi. The sclerites of thesc^ sefrinenl.s vary ii ^reat deal in the different tribes and even in the <«;enera of the Tenehrioni(he and are of taxo- noinic value. The development of these se, figs. 3 to 9.) The (ipirale is always triangular, rarely subpyriform, more or less depressed and usually subacnte at ajiex, sometimes obtuse: the base is more or less lobed and received into the emargination at the apex of the basale; the dorsal surface is more or less convex, frequently membranous at middle, but in the higher forms entirely chitinous; ventral surface is more or less membranous, but chiefly occupied by the edeagus and its protecting clavse, the inflexed and chitinous sides constitute the ala' which occujiy the greater part of the surface; in one genus the ahe support subahe. {Ehod'unorpha^ Plate 7, fig. 8.) The al(v are inflexed to a varying degree, strongly so when the ventral surface of the apicale is concave, as in Eleodea curdata REVISION OF KI.EODIINI — BI.AISDELL. 21 (Plate 7, fi) ; convex veiiti-ally in Kmlxtphioii (Plate 7, li«r. 7//) and FJcikJch i>l(in'ijKini}K (Plate 9, ^^. 7) ; in Klcodes .scubvicnla the inferior snrface of (lie ajjicale is concave apicad to the alac, which are suddenly iJroiuincnt. In the ditferenl sjjecies the ahe are continued hasad (o a varyinu: deiriee, be- coniin«; more and more memhranons. (See fi<^s. (i. 7. and !), Plate 9.) The Iu1ea(/UH (Plate 9, fi^. \\(i) is usually flattened, suhlingui- form in shape and subacute at aj>ex; the ventral surface is narrowly prominent in the median line and more or lessconcaxe laterally where it is in contact with the clavtc in repose; the median ridge, divides toward apex to become bilabiate, between which is ])i-()bably the ori- fice of the ran dcfirciis. At base the structure is more chitinous and there is a small median jjrocess for articulating with the clavie. The dorsal surface is feebly convex and more or less membranous and marked by a median groove; opposite the attachment of the clava; ventrally the surface membrane is reflected upon the inteiiial wall of the apicale, forming the fornix edeagi. In fig. VI of Plate 9 the orifice of the detached vas deferens can be seen entering the edeagus from the basale just beneath the fornix. At the base the sides of the edeagus are strongly chitinized and produced into two long processes (IMate 9, figs. \\a and 1*2) which extend cephalad within the interior of the basale, giving attachment to muscles. The (htrhion truncate at tip and concave beneath ; in Klcodhnor- pha the}' are rather liguliform (see figs. 7 and 8, Plate 7). In repose when the edeagus is retracted they lie paiallel to the median line and more or less contiguous; with the edeagus pro- truded they are at right angles to the axis of the edeago})hore. Each claim may be said to have a base and an apex, a dorsal and a ventral surface, and internal or posterior surface and an external or anterior margin. The base is obliquely truncate at the posterior or internal surface and articulated to the ventral surface of the edeagus at base; the internal or posterior surface or edge is nnich thicker than the anterior or external, and triangular in basal half, and thence gradually be- coming more ventral as it attains the apex, where it is feebly con- vex, the basal j^ortion is (juite plane; apex subacute to rounded or rather obli(|uely truncate; the external or anterior edge is usually thin, feebly arcuate and slightly notched near the apex; the dorsal surface more or less c(mvex and the ventral rather concave. (A'. dintijHs. Plate 9, figs. \\d and 12.) In re})ose the clava' maj' conceal the edeagus, except at apex, where they slightly dixcrge, when they aic vential as in Khodes; or 22 BULLETIN <;;}, UNITED STATES NATIONAL MUSEUM. the median ventral surface of the edeagus, may be visible between them when they arc lateral as in EmhnjyMon., an^ ventrad but not contiguous as in Klcoilimorpha. The female genital segment (Plate 7, figs. 3 and 4). — Viewed from above it has an outline varying somewhat according to the subgenus: trianguhir in />lapj/li-y. (juadrate in Melaueleodcs^ trapezoidal in Eleoiha and subparabolic in Steneleodes. The dorsal surface varies but is usually more or less j^lane to sub- ogival: ventralh' convex — strongly so at base and giadually less so apically. The segment consists of two chitinous valves concealing and pro- tecting the pudenda between them. The vahes are movable on a lat- eral plane, in abduction exposing the genital orifice and its sur- rounding i)u(erior maigin of the same plate (Plate ;5. lits<i(>)nns. Usually penicillate. The pubescence on the apex is usually longer than elsewhere, and the internal lobe is often somewhat penicillate. The vahular body is never very strongly pimctate, mcst noticeably so on the external moiety of the dorsal plate in Promu.s. The punc- tures are rather strong in some species of Stineleodes, and the superior pudendal membrane is broadly exposed. From the sides of the vulva the lateral pudendal membrane is reflected upon the interiuil surface of the valve and there becomes the valvular membrane (Plate 7. figs. 3r and 4v)-. apically. directly continuous with that of the internal surface of the apex. The angle of reflection between the lateral piulendal membrane and valvidar membrane is the forniv ralrulti^. In some species the lateral pudendal meml)rane passe> backward directly upon the internal sur- face of the valve without forming an angle of reflection. Fiiiiction. — The edeagophore is the agent by which the repro- ductive organs are brought into ai)position. The ajjicale by its sub- acute apex is capable of mon' or less forcibly separating the tergal and sternal sclerites of (he >ixth and seventh somites and protects the essential organ from injury. With the protrusion of the edeagus and its approximation to the genital fissure, the siundtaneous abduction of the claviv forcibly ab- ducts the valvuhe and blocks their closure. 24 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Homology. — The examination of the male reproductive organs of Ilydrophihis triangidaris (Plate 9, figs. 1 and 2) suggests the homol- ogy between the rei)rodiictive organs in the Eleodani^ and also be- tween the former and those of the latter. In irydropJiilns the edeagophore consists of a basale (Plate 9, fig. \d) and two apical valves. The basale is impressed along the me- dian line dorsally and is more or less membranous at that point, and it therefore appears to have l)een developed 1)V the partial coalescence of two lateral sclerites, termed by Packard the outer lohes; the two apical lobes he terms the inner lohes (Plate 9, fig. la), they are valvu- lar in character and capable of free abduction and adduction; be- tween them is the edeagus. I consider the outer lobes homologous with the basale, and the inner lobes with the apicale in the Kleodiitii. If fig. 1 of Plate 9 be com})ared with fig. 12, Plate 2, a similar structural condition of the valves in the two sexes and in very wMdely separated series will be observed. It is evident that in Hydrophihis there has been less sexual dilferentiation than in the Eleodii/u, and also if the male characters of the latter be considered. The female genital segment of Ilydrophilus (Plate 9. fig. 10) pre- sents a complicated arrangement of sclerites which are noticeably divergent from anything observed in the Kleodiini, and must be considered as a more primitive condition, in this agreeing with the male characters. It has been made known by Nussbaum that unpaired parts like the edeagus, etc.. have been developed from ])aired ectodermal out- growths which have fused together, and in all probability there is analogy between these outgrowths in the Insecta anil those observed in the Vertebrate Series; if this be so, then there unist at some period have been an indifl'erent stage in the development of these organs, and a time of beginning sexual differentiation. It appears to me that the apical lobes of Ilydrophihui and the api- cale of the FAeodi'ini are homologous with the genital segment of the female. In Ilydrophilus there are the two valves cap'able of free abduction and adduction with the edeagus between and protected by them ; in the female of the KJeodt'm'i the two valves are as c-apable of free movement as in the above and enclose and protect the sexual orifice. In the fenuile the valves articulate with large paranal plates; in the male the \ alves or apicale articulate with the outer lobes or basale, and the paranal plates are small and articulate with a Y-shaped chitinous structure that is internal, the basal prtK-ess of the basale articulating with the arms of the Y by ligaments. KEVISION OF KI.KtHtilNl — KLAISDKI.l.. 25 It appears (o inc that the oiitci- lohi's (Plate 0, fi<;. 1^/) which iiiiitc lo form tlie hasah' are the niodilietl ^Meater |)ai-t. at least, of the paraiial j)lates. There must be a definite law i^overnin*:: the deposition of cliitin; it can n()t be ditFiiscly deposited — ^at random, as it were — but it must be first laid down at certain points, called the centers of chitinization, and from these centers spread, or have iiMieicnt limitations; different centers coalesciiiir to form larj^cr sclcritcs or one continu(»us whole, as in the prothorax. A sim})Ie sclcrite would then be one formed by the secretion of chitin about a single center; a coujiiound sderite from two or Uiore centers. The small but synnnetrically arran«red sclerites observed in the cuticle of larva- may be cited as simple sclerites. It might be assumed that the paranal plate in the female is com- pound; in the male these centers have become shifted, to foi'm the small paranal plate, and the other to become tlie lateral sderite of the basale. The origin of the several sclerites in the female genital segment of IlydropJiUus may be accounted for in this way — they have not coa- lesced and have been shifted according to the laws governing adapta- tion to function ; during divergence and differentiation under changed conditions of environment these several sclerites fuse — of course it is possible for some to be suppressed, others hvpertrophied or even revived — and in this manner pnxhice the apparently simjjle chitinous valves of the Khod'iiiti. These suggestions are to indicate a line of investigation in the coleopteral series. An examination of the edeag<)j)hore of Bh/ps (Plate 0, figs. 8 and 4) will be instructive. It will be seen that the apicale is divided longitudinally by a well-marked membranous impressed groove and that the apex is bifid; the basale is also marked by a similar medium groove. These characters indicate a structural condition somewhat intermediate between the Kleodilni and a more primitive state as suggested by IJt/(1roj>]iihts. If it be imagined that the apicale of Blap.s was completely divided along the groove, and the ala^ not strongly infiexed, the edeagns and its ])allium would bear the same relation to the valves as does the edeagus to the valves in Ilydrophihis. There is greater specializa- tion in the Eleodlhil than in Ilt/drophihts or Blaps. In hleodi s and other members of the hleodiini the apicale is fre- quently marked dorsally by a membranous area or groove, and less frequently the basale has an impressed median line. Many species do not normally have this groove and sucli I consider to l)e the more highly differentiated, although occasionally it occurs on the apicale even in them, and is tiien to be considered as an instance of atacal reversion. 2G BULLETIN (;:}, rXTTED STATES NATIONAL MUSEUM. It is to be noted that Escherich, in his paper on the internal male organs of beetles, notes that those of the Caral^da' illustrate the simplest, most primitive condition. Packard figures Bhips as inter- mediate between the Carabida? and Hydrophilus." SciilptKrbu/. — From siniple punctures the sculpturing passes through the dirtVrent degrees of modification to distiuct nnirication or tuberculation, or as in a few species to distinct liniriness with com- jiaratively simple i)unctures. From a careful study of the sculpturing under high i)ower in the species of the lileodiini, I have observed the following: A simple i)uncture is a more or less rounded depression, variable in size and depth, and bounded by a more or less distinct, although fine wall or margin: from the floor of this depression arises a minute hair or seta, which scan.-ely passes beyond the mouth of the punc- ture. The surface with such a punctuation is smooth. Any modification will affect the puncture in one of two ways: Either by a hypertrophy of its margin or by an increased growth or hvpertroi)liy of the hnirdike process. In the first instance the hair may remain small or atrophic; in the second the hair-like process is alone affected. Some punctures may become comj^letely aborted. The hair-like process arising from the hypodermis may develop into a soft, flexible hair, or by a slightly increased chitinization of its cuticle into a bristle or seta, and by still greater increased cliitiniza- tion, Avith or without hypertrophy, into a spinule or spine. In the miiricate type of sculpturing the anterior lip of a puncture is thickened and more or less produced into a blunt or acute point : from the sides of this prominence the uuirgins gradually diminish so that the posterior boundary of the puncture will be but slightly modified ; the thickened edge is directed upward and backward, chiefly the latter; the hair or seta may be aborted, renuiin small, or become more chitinous to become a seta, and be carried upward by the hypertroi)hie(l margin to project from the posterior surface of the more prouuneut anterior margin of the puncture. When the margin of the puncture is equal and much thickened a tubercle is formed, which varies in size from a granule to a well marked and rounded eminence: the puncture may be entirely closed or obliterated, or may still be evident as a minute pore-like depression with a correspondingly small hair or seta pi'ojecting from it, and from some point, usually the posterior wall of the tubercle. There are all the intermediate degrees of variation to be observed. The ])unctures may remain simjile and the hair become long and flexible. If the anterior lip of the puncture becomes minutely muricate the sculpturing is more or less asperate. "Text-Rook Ent.. p. 404. fijr. 40.''.. .4. /?. ;iiul C. REVISTOX OF KLEODTINT — BLAISDELT.. 27 On tlu' femora tlu' ])i().\iiii.il marixiii ol" a piiiicliirt' is transversely raised so that the seta ai"isin i n e s or spinose. ( r.ASSlKICATlOX AND SYNOPSIS. Familv TKXKr.KlOXlD.lv Tribe KLKC)DI1>^1. This tribe contains insects of greater size than any other of the heteromerous subfamily Tenebrioninie. The body is oblong to ovate, rarely oval, apterotis; head prominent, slightly narrowed iK^hind the eyes; epistoma covering the base of the mandil)les at the sides; labrum prominent; mentinu small, inserted 28 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. upon a gular peduncle ; maxilla? exposed ; ligula partly concealed ; niaxillarv palpi with the last joint seciirifonii. not very large; eyes transverse, reniforni, tolerabl}' finely granulated; antennae 11-jointed; elytra embracing widely the planks of the abdomen, epipleurse narrow to moderately wide, middle coxte with large trochantine, side pieces attaining the coxal cavities; metasternum very short, episterna nar- row, epimera quite distinct; hind coxa? widely separated; intercoxal process of abdomen rectangular; third and fourth ventral segments not prolonged behind at the margin. Legs long; anterior femora frequently toothed: tibial spurs dis- tiuct; tarsi chaimelled beneath: first, second, and third joints of the anterior tarsi are at times thickened beneath, nunv or less obliterating the groove, setose beneath. All are black or dark brownish, rarely reddish along the suture; variously though never very roughly sculptured; a few species are pubescent. The third and fourth ventral abdominal segments are more or less broadly sinuate at ajjex, the angles appearing somewhat prominent, but not noticeably prolonged. The tribal comparative genital characters are reserved for a future and special study. IlahitH. — Our species are terrestrial and cursorial, apparently strictly nocturnal, or are about in the early morning or late in the da}'. On warm cloudy days I have seen lilcodcs (jra/ulicollis and E. acuticiOi(J(i walking about. The larger si)ecies when disturbed place their bodies nearly vertical, the head near the ground, tail erect, and when touched or ii-ritated will emit a pungent dark oleaginous offensive secretion, w liich coming in contact with the skin of the hands will stain brownish arul remain for a long time, and ai^parently fixed by an alkaline sub- stance (Horn). The species of the present tribe rarely ascend plants; the snuiller sjDecies {/Uapylis) may be found on the stems or under the bark of shrubs. When ahuMued they run off with their bodies elevated. Probably it is this habit which has suggested the name "' circus bugs," often applied to them in the West (AVickham). In California they are often spoken of as "stink bugs," "beetle bugs," and "tumble bugs." The latter term is applied no doubt on account of their frecpiently tumbling over when excited ; also, pinacate bugs (V. Kellogg). They are a chai-acteristic feature of the arid regions west of the Mississippi River. Lonf/erity. — Some of the larger and more resisting sjiecies evidently live to be several Ncai's of age: especially in tlie warnici' regions of RFA'TSION OF KLKODIINI- l5I,.Msr)KI,L. 29 California (Horn). I \in\o kept several J'Jrtxhs (letitipcH in cap- tivity for over four years. Doctor Horn states that specimens have been kej^t pinned two months without food or water. Elcodcs . Knentit'.s. — Quadrupeds like skunks will feed upon (hem; chickens devour tluMU readily, as well as ground owls; Itulchei- birds impale them on thorns. Evonomks. — As far as I have been able to determine they are neither injurious nor beneficial, unless the larva' are in some way troublesome, but as they api)ear to prefer decayin*j: veroader; 8-10 niMiijIiforni, siiddenly siiditiT tlian the prtK^-eilinj? joint (Ulnptini) '_ Hlaps. 1. Sides of the epistoina not dihitetl, niarjiin straight or sinuate, converging anteriorly 2 Sides moderately dilated, margin arcuate Troglodcnix. 2. Kpijilt'iine attaining the humeral angles ;{ EpiplenriP very narrow, not attaining the humeral angles Emhaphion. '.\. Kpii)leura' bmader at base, more or less gradually narrowing to aiKW. Epiplenne occupying only a part of the iuHexed portion of the elytra ; l)uccal processes of the gcn:e not produced F]lrndrs. Epipleura* occupying the whole of the inflexed portion of the elytra ; buccal processes of the gense acutely produced Elcodimorpha. 30 BL'LLKTIN 6;i, UNITKIJ STATES ^■ATIU^"AL MUSEUM. The genera can also l)e defined by the male genital characters as follows : , Sternite ( ti;;. (J, l'liil«> (>) with Inhcs felly ami sti'onj^ly cuimati': cliiv:e dorsal to the edeajrus, connate formiufx a palliinii ( .s/»(///,s, niucroitdta) (lihiiitiiii) BUiim. Sternite distinctly I)ilol)('(l, IoIk'S connected l»y a nunilirane that at most is but feeblj- chitinized, lobes capable of abduction i llh iKliliti). Clav;e vcntrad to the edeajins. Clavic siiicnliforni, notched at side of the tijts; ahe more or less strongly intiexed, not prominent ventrally, jilane or somewhat concave, never strongly convex ( IMate 7, tig. 1) Elcodcs. Clav;e flattened (liguliform), of equal width throughout, tip obtuse and rounded; al;e short, not strongly intiexed, giving attachment to subabe (Plate 7, tig. 8) EJeoiJimorithn. Clavse laterad to the edeagus, truncate at tip, more or less concave beneath; ahe moderately and evenly intiexed, rather promiueut veutrally (Plate 7, fig. 7) Eiiibapliion. Troglodervs has the lobes of the sternite uuitod by membrane and capable of abduction. Unfortunately the clava^ could not be studied without destruction of the fragile material at hand. Genealogy. — The antecedents of the present tribe are not suggested to my mind by the data at hand. The nuile sexual characters are the most distinctly differentiated for the generic subdivision of the tribe. The above synoptic table indicates these relationships just as forcibly as a diagram could do where there are so few elements involved. The genera are related, first, by the bilobed sternite, the lobes being capable of abduction; second, by the relation of the clava> to the edeagus; third, by divergence having taken place along the line of degree of development in the ala*. In Eh'odimorpha the subahv have been differentiated as distinct sclerites from the ahr. In Eleodes and Kmhaph'ton the extrusion of the edeagus with simultaneous abduction of the clava'. is brought about by muscular action — certain extrusor nniscles; the return of these structures is accomplished by the iuherent elasticity of the ahe, the latter being the continuously i)r<)duced and inflexed sides of the apicale. It is logical to suppose that accompanying the differentiation of the subahe as distinct exoskeletal elements that there has been a corresponding muscular differentiation; for when the continuity of the ahe underwent solution, they in all j^robability were no longer capable to functionate by their own inherent resiliency — of course, it is possil)le for the continuity of the elements to be restored by becoming connate at a sutural line; but this would evidently still be a weak point and correspondingly diminish the functional activity of the part. IJI.VISION OK KLKODIINI^ — IJLAISDKLL,. 31 III all |)r(»l)al)ilily (licrc lias Ix'cii a coiiipciisalory (JcvcloiMiiriit of retractor iimsrlos to ovcrcoiiic this loss ol" power. Genus ELEODES Eschscholtz. Minitinn variable in form, inoic or loss trilobod, the iiiiihllc lobe hirfi;er and more convex; lateral lobes fre(iiiently infiexed and more or less concealed. Last joint of labial palpi triangular, narrower than the inaxillarv, which are broadly trian obscure. Another very iuterestinli<;htly arcuate and narrow in basal half, ratln-r al>- ni|)tly dilated and straight in apical half. In the literature I find this character miMitioned by Doctor TTorn as one of the male rhar- acters of E. wickhatni. This is not a staple nor a .specific character, but is observed as peculiar to the nuile of certain species, but not in all forms of those species; it is seen in the caudate forms of A\ esch- scholtni and hiin>d. niembraimus. although fre- quently ehitinous: external h»be ol>serior pudendal membrane not broadly exjHisi'd 2 Siiperior pudendal membrane broadly or fully exiwsed ; body and apical lobe itf valve fully chitinized: .ippeiulage minute StcnrlriKlcs. 2. Appendages present, apical lobe defined from bndy of the valve .3 Appendages obsolete: ajiical lobe not defined from body of the valve. Ilctcroprom us. 3. Appendages moderate in size, subconical to semiellipsoidal and flattene. Submarginal groove not visible from above; surface of dorsal plate at most l)ut feebly concave, generally plane 7 Snbmarginal groove dorsal or visible at some jioint from above: surface of dorsal i)late more or less deeply concave Ehoden. 7. Superior outline of genital segment quadrate, triangulo-parabolic to para- bolic 8 Superior outline more or less triangular. Outline triangular: dorsal plate oblong-triangular, external border at most but slightly arcuate, internal bolder not strongly arcuate at base Blapylix. Outline subequilaterally triangular; external border of dorsal plate arcuate, angle obsolete; superior membrane reaching to middle of dorsal plate Trichcl codes. 8. Superior outline of genital segment quadrate to triangulo-parabolic: superior memln'ane variable in length; dorsal plate oval-oblong, internal border re- Ilex etl and imi)unctate; external border more or less arcuate, angle evident; apex small and membranous: appendage large, more or less semielliiitical to subconical, depressed Lithrlcodes. Superior outline parabolic, short: dorsal plate subovate. exten(!ing u]>on the ajiical lobe beyond the appendage, sides not reflexed : ap])endage short, pro- jecting from beneath the outer border of the ai)ical margin of dors.il plate; genital fissure subapical Pscudcleodes. The student must bear in mind in resorting to the use of the above table that care must be taken to familiarize himself with the general structure of the genital segment. Besides the distinct generic differences there are in each subgenus specific characters which can only be worked out positively with large series, and, while of scientific interest, would not be of practical im- portance in the separation of species. The male genital characters may be summarized as follows: strnclcodat. Apicale of the edeagophore broadly triangular, depressed on dor- sum and more or less broadly membranous cenlrally: apexl more or less rounded J ' " Apicale triangular and slightly elongate, convex dorsally; apex more or less produced and subacute. Mclinirlcodcft. Dorsinn with an evident median, more or less membranous Elcodcs. groove Lithrlcodes. P rum IIS. Dorsum without median groove, except in tibialis BluinjUs. REVISION Of KLKODIIM lU.AISDLLL. oO .SYNOPSIS OK (iKNKKAl. SlBliEN KKIl' CM AKAC IKKS. Aiitfriiir fciiior.i ;it If.-isi. .•iriiicil in Imlli st-xi-s (cxfcpi in niiiilifriii mikI luniji- /lihisii when' tln> tc^'tli arc altortivc) ^__/*Ci' ill << nits. Anterior feiuorii armrd only in the male or umlic Anterior tii>ial spurs tlissimilar in the sexes; fenmra nMitie__.l/r/a;ir/r«dl>es rudimentary. 1ft- visihle without disset-tion ; anterior tarsi with lirst joint niiiteral lobes of the mentum fullv exposed; scnli)turinii com- ': ' r'7 ■"•'^*' paratively simple: femora mutie 'JzLls^.// ]lrtnbl(ii>ylis.<^ j^Aiv^vcr I>ateral lol)es niotlerately exix)sed : species oparpie to shining; elytr.i tubenid.ite ; anterior femora uot sniuate, mutic. y\ , /v^ I'mudvlrndcs. ^vti^>^.^iit throujrhout. Hairs loiiji and flyiufj: femora mutic: anterior tarsi with tirst joint scarcely pn»ducele in tiie female. jjao^^jt* 7t. ^*o^ Strnelendes.'lx.^yyn^iu^ Form ovate or fusiform: tlie first one or two joints of an- terior tarsi in the male more or less thickened and some- times flattened beneath, den.sely clothed witli tine pubescen<'e; ''rl" .^^u^ tarsi simple and uumiKlitied in the female: anterior femora "^^'\ ^ armed or mutic ^-J^IAr-- Promns. Form short ovat", moderate in size to small, robust (elon- gate and dejiressed in iihialis) ; .interior tarsi of the male with first two or three joints feebly thickenetl at tip be- neath and clothed with dense silken nv brownish pubescent tufts, obliterating the groove: joints simple with grooves entire in female: femora mutic .'i— 4^vr- BlapyUs. ' Form ovate, moderate in size, less roi)ust ; first joint of the anterior tarsi more or less thickeiUHl and slightly more promiiHMit ventrally than th«' otiiers. iiubes<'ent tuft variable, most evident in crtrii-dlii: in the male tirst joint with a minute tuft of silken pubescence at tip beueath Lithvlcodcu. 36 BULLETI^ ti;i, united states national museum. Subgenus ME LANE LEO DBS, new. Anterior spurs of the anterior tibiae dissimiliffr in the sexes, and more or less curved. Longer and slightly thicker than the posterior in the male; notabh' longer, much broader and stouter and most strongly curved in the female. In the males of humcrnJis and rUcyi the anterior spurs are much more strongly developed than in the same sex of the other species of the subgenus. The anterior femora are nuitic and the first joint of the anterior tarsi is more or less thickened and feeljly produced at tip beneath in both sexes. The male generally has a minute pencil of yellowish or lirownish modified spinules on the produced tip; this is surrounded by a few closel}' placed, ordinary piceous spinules; in the female the produced tip bears only a few ordinary spinules. Snhgeneric gexital chararter.'i — Male. — Apicale of the edeagophore triangular, distinctly longer than Avide, more or less convex above, with a more or less well marked semimembranous median groove; apex more or less acute and rather attenuated ; base more or less lobed at middle. The membrane closing the interlobar sinus of the sternite is always more or less sparsely setose across the bottom of the sinus. This character is rarely observed in any other subgenus. Female. — Genital segment quadrate to trapezoidal. Each valve has the dorsal j^late oblong and more or less dislinctly explanate ex- ternally. The c.t'teDKil lohe of apex is strongly dereloped, the inter- nal small and rudimentary. The appendage is mammilliform, rarely visible from above, and directed backward and inwards. Superior pudendal membrane is longitudinally rugulose, reaching apically to the base of the internal apical lobe. The greater development of the external lobe of the apex is the most distinctive subgeneric character and is not observed in any other division of the genus Eleodes. I can not at present devise a scheme in' which the genital charac- ters can be used in the diagnosis of species; they apparently vary sufficiently to obscure the few constant specific characters. Variations. — The individuals constituting the specific aggregations of the present subgenus are particularly prone to pronotal variations. This apparent instability is due to the degree to which the pronotal sides are arcuately deflexed. and a certain amoimt to the degree to which the extreme margin is carried downward and more or less inflexed against the ]>ropleura> as it were. The actual marginal curve is quite constant in each species making uj) (Jroup I. REVISION OF ELEOnilNI— FiLAISDELL. 87 Morph()l(t widot ;it the iniddlt- in hoth sexes; but in tlic fcnialc (licrc is a stron^^cr lateral tl('('li\ity, willi a varvin«i: ainonnt of lateral compression behind llie middle to make the .sides appear more or less straight from middle to has*'; con- versely, there is less deflexion antei'ior to the middle so that indi- viduals of the same species and sex may l)e more or less stron<;Iv arcuate hefoi'e the middle. In hniitrntlis there is less (h'flexion tluiii in any other species of M< laneleodett. the niar^Mnal head heing^ nearly always visible in the typical foi'ni when the pionotum is viewed vertically from above. The de«rree to which the an Huincralis. — Mexico ? In the Biologia (reference as above) the author writes: "There is an example of this species in Mr. F. Bates's collection labeled as from Mexico; possibly .some mistake al)out the locality."' I agree with this. Dr. George Horn, in the Proc. Cal. .Vcad. Sciences, 2d ser., IV, Pt. 1, p. SoO, gives this species as occurring at Sierra I.aguna, San Francisquito, La Chuparosa, and San Jos6 del Ca1)o, Lower California. 1 liavc studied these specimens in the collection of the academy and tind them not hiiiiicnilix at all. (See tihialiif.) GenealoI' TIIK SCBOKXCS M KI.ANKLODES. The .species of the present subgenus may l)e divided into two groups as follows: Klytra elongate oval, convex, comparatively narrow, feebly eniarpinate at base, buuieral augle.s not rectaniinlar : thorax not conspicuously broadened at base, aiifrles obtuse, not ovoriappiii.:: liunieral angles of elytra, more or less ai'cuately declivous at the sides, marginal bead rarely entirely visible when viewed vertically from above (Jroup 1. Klytra liroas, marginal bead distinctly visibU- from above Groci' II. Group I may again i»e conviMiiently divider less muricate 5 2. Smaller species 8 Larger siiecies 4 3. Elytra with distinct and rather distant series of moderately sized punctures. with a single interstitial series of irregularly spaced, fine punctures (form similar to extricata) drbiUx. 4. Elytra with distinct series of rather coarse punctui'es, punctuation never diffuse. I'ronotum usually widest just before the middle (females at least). East of the Colorado River earhonnria. Pronotum quite quadrate, sides evenly roundetl, equally narrowed before and behind (form somewhat similar to a smooth, finely punctate goijfi). Texas var. noror. Elytra usually more or less diffusely punctate, series frequently more or less evident, pimctures generally subequal in size. West of the Colorado River. Larger size : Apical angles of thorax obtuse, ajiex feebly emarginate or tnmcate; elytra widest at middle omiftaa. Apical angles subacute, apex moderately emarginate; elytra usually widest behind the middle; surface i>olished var. peninsuluris. Smaller size. Thorax more or less quadrate : males slender var. i>ygma'roduced in both sexes 1 Anterior spur of the anterior tibi;p. strongly iimduced in both sexes (less in the male) 2 1. Elytra striato-punctate to diffusely punctate. Anteuufe moderate in length; surface more or less shining; epistoma coarsely and continently punctate qnadrkoUix. Antenuie long. lOpistoma more finely and not continently punctate. Larger species; surface" dull var. anthraciim. Smaller si)ec-ies; surface i)olished and shining var. htstrans. Elytra with punctures irregularly distributed, without serial arrangement, but producing a strongly rugulose appearance by mutual semicoales- cence cuneaticoUis. 2. Elongate si)ecies 3 Shorter, more robust species 4 REVISION OF ELEODIINI — BLAISDELL. 41 3. Elytra opaque, »li'iis«'ly imiriciitcly iMiiuliitc ( W.isliin^tuin ; rrc<|ii(«iiily grauuliito-nmricatt'ly (Nevada and California) or tnberculo-niuricateiy (Colorado) |)inu'tnr»'d huiiirmlis. 4. Elytra sliininj,', snhMsparatcly i)nncta((', punctures rather sparse, often with a feeble lineal arrauyement rilcyi. OROl'P II. Elytra oostate.. 1 Elytra not in the least costate ^t_-2 1. Elytra with alternate interspaces more elevated, at times all quite evenly so ; surface o|iaque tricostata. 2. Elytra glabrous and shinin.n, with regular strife of moderately larj,'e punctures, interstices equally and very feebly convex; pronotum with basal depressitais iKtlitioidcs. Elytra opaque, diflusely i»unctate; basal depressions of i)ronotuni obso- lete_ var. ncumcricana. GROUP I.— CAKBOXAKIA SECTION. ELEODES DEBILIS LeConte. Eleodes dehUin. — LeContf.. Troc. Nat. Sd. Acad. Phila.. 1.858, p. 185. — Horn, Trans. Amer. Philos. Soc, XIV, 1870, p. H08, — Casey, Annals N. Y. Acad. Sci., V, Nov.. 1800, p. ;«HJ.- Ovate, moderately robust, glabrous and shining. Head twice as wide as long, feebly convex, rather coarsely punctate, punctures very sparse on the vertex, denser on the epistoma ; surface more or less impressed laterally and along the frontal suture. An- tennce moderate, reaching to the base of the prothorax, subequal in the sexes, outer four joints A'ory feebly compressed, scarcely dilated, third joint about equal to the next two taken together, fourth liardly longer than the fifth, tlie latter, sixth and seventh subequal, eighth feebly triangular, ninth and tenth suborbiciilar. scarcely transverse, eleventh ovate. Pronotum subquadrate, widest at the middle, about one-fifth to one-third wider than long; dixc rather strongly and evenly convex from side to side, feebly so antero-posteiiorly ami more or less de- clivous at the apical angh's, finely and sparsely pimctidate, rather more strongly so hiterally; apc.r feel)ly and evenly emarginate. usu- ally obsoletely margined; suhn converging a littk> auteiioily. rather evejdy and moderately arcuate in apical two-thirds, tlieiice to base obli(iiiely straight or feebly sinuate, finely margined: husi rather broadly rounded and finely margined, abotil a third wider than the apex; apical angles subacute; basal angles obtu.se. Propletira' smooth, sparsely and more or less obsoletely puiu-tidate. slightly rugulose. Eh/trn oval, widest at the middle, about a third longer than wide; hose broadly and very feebly emargijiate, scarcely wider than the 42 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. contiguous base of the prothorax; humeri more or less acute; sides evenly arcuate, apex obtusely and narrowly rou«ded ; disc evenly and moderately convex, laterally more strongly rounded, evenly and quite strongly arcuately declivous posteriorly, punctate, punctures slightly separated, moderate sized and arranged in rather distant series; intervals flat with a single series of irregr.larly spaced and usually fine punctures, both series becoming more or less confused at the sides and apex. EpipleurcF moderate in width, superior margin feebly sinuate be- neath the humeri, very gradually narrowing to apex; surface gla- brous and more or less finely and sparsely punctulate. Stern(( more or less glabrous, irregularly and more or less densely pimctate, rugulose. Parapleurce rather coarsely and somewhat densely punctate. Ahdomen shining and glabrous, sparsely, and finely punctulate, more or less rugulose. Legs moderate. Anterior femora mutic in the sexes; anterior tibial spurs slightly dissimilar: first joint of the anterior tarsi produced at tip beneath and feebly dissimilar in the sexes. Male. — Slightly robust. Thorax quite quadrate; abdomen sub- horizontal, first two segments more or less broadly impressed at middle, intercoxal process slightly concave; anterior tibial spurs comparatively small and slender, the anterior one scarcely widened. First joint of the anterior tarsi with a minute pencil of brownish modified spijiules surrounded by dark spinules on produced tip be- neath. Female. — Moderately robust. Thorax slightly transverse. Abdo- men horizontal and rather strongly convex. Ajiterior tibial spurs a little larger and longer, the anterior spur slightly widened but grad- ually narrowed from base to apex. First joint of the anterior tarsi with dark spinules on the produced tip beneath. Measurements. — Males: Ijength, 12-13 mm.; width, 5.5 mm. Fe- males: Length, 12.8-14.8 mm.: width, 6-6.5 nun. Genital character, male. — Edeagophore elongate oval, acutely pointed at the apical extremity and slightly arched. Basale oblong, evenly convex, sides slightly arcuate. Apicale triangular, rather evenly convex above, with a narrow median membranous groove at the middle third ; sides feebly arcuate at base, thence broadly ajid more or less strongly sinuate to apex, the latter ajijiearing attenuated: base strongly and moderately narrowly arcuate at niiddle, laterally bi'oadly siiuuite. Stemite rather short and transversely parabolic. Each lolie with the external border evenly arcuate to apex, the latter narrowly i-ounded; internal border oblitjue; surface feebly convex, shining. REVISION OF ELEODIINI — BLAISDELL. 43 very sparsely pumtati' :uul setose apically, seta? moderately short. Sinus triangular, nieinlmino slightly setose at bottom. Female. — (ionital segment (luadnite, vnlv(>s n-flcxed at the sides, setose, glabrous and shining. Valvula (Plate 4, fig. 20). — Dorsal plate oblong, explanate exter- nally and slightly deflexed, internally reflexed and impunctate in apical half; surface convex externally, very sparsely i)unctate, punc- tures denser on convexity, each with a long seta ; external margin straight : angle rectangular and prominent, sometimes feebly rounded, with a few moderately long seta-: apical margin sijuarely truncate to moderately and arcuately produced in outer half, more or less sin- uate over the appendage: internal margin more or less arcuate. Apex short, triangular and acute, set with a few moderately long setae. Appendage (cercopod) short and moderate in size, conical or feebly depressed^ bearing moderately long seta\ Basal prontiiu'/tce.s not evident. Superior pudendal membrane feebly and distinctly longitudinally rugulose, reaching to about the middle of the dorsal plate. Ve/itrolafcnif smfatc modci'ately convex, scarcely concave before the apex; submarginal groove broad and shallow beneath the ex- planate external border of dorsal plate; surface finely punctate and setose, seta' minute. The internal borders of the valvuhe are con- tiguous in hasal sixth; genital fissure fusiform and moderately wide, with the inferior i)udendal membrane visible in basal half. Habitat. — New Mexico (Santa Fe. C. V. Kiley) ; Arizona (Sulphur Spring Valley, Hubbard and Schwarz) ; Texas (Alpine, elevation 4,400-C),000 feet, H. F. Wickham). Number of specimens studietl, 8 males, 6 females. Type in the LeConte collection. Type-locality. — New Mexico; collected by Mr. Fendler. Salletit type-c/iararter.s. — Thorax sub([uadrate, slightly narrowed anteriorly; sides broadly rounded; apical angles acute, the basal ob- tuse; base broadly rounded. Klytra oval and convex, strongly de- clivous posteriorly, not acuminate at apex; base broadly emargiuate; humeri acute; disc <|uite strongly striato-punctate. intervals with a single series of fine i)unctules (Le(\)nte). D'uu/uostic rltdrartei-K. — In size and shape drbd'ts resembles a smooth extricata, fiom \vhiAISl)KI,L. 45 Tlie meso- and luctafoinora arc each suhoiiual in width, the former is scarcely compressed, tlie latter di^^liiictly so. The tii)ial tjrooves have their mar«xiiis feehly siihcai'iiiifoi-m and c^raihially c<)nv«>r«;ing to become contiguous and e\anes(i'nt at hasal thirds. The protihia" are feebly compressed; all the tibia' are without tarsal grooves, and muricaloly sculj)tured. The tarsi are moderate in length and comparatively slender. The j)rotarsi are about a fourth of their length shorter than a mesotai-sifs; hrst four joints subeciual in widtii; the second, third, and fourth are about as long as wide, the fourth slightly smallei- than the third; the fifth is al)out as long as the preceding three taken together; the first is longer than wide, and rajiidly narrowing to the base. The mesotarsi are about a fifth of their length shorter than a metatarsus. First four joints are subeparser about vertex, surface more or less impressed along the frontal suture and laterally. Anfenti/r moderately long, reaching to or very slightly beyond the base of the prothorax. subequal in the sexes, outer four joints feeljly compressed, just perceptibly dilated, third joint about equal to the next two taken together, fourth just noticeably longer than the fifth, the latter, sixth and seventh sulnvpuil. eighth triangiUar and as wide as long; ninth and teiuh luoi'e or less feebly transversely oval; eleventh ovate. Proiiof'/m sulvpiadrate. wide>-t at or a little in advance of the middle, and about one-fifth to one-third wider than long; dm- evenly 46 BULLETIN tS'.i, UNITED STATES NATIONAL MUSEUM. and moderately convex, more or less arcuately declivous laterally and at the apical angle,s. finely and sparsely punctiilate,^unctures slifrhtly denser and coarser along the margins laterally: (i/H.r slightly emargi- nate or truncate, finely or more or less obsoletely margined; f^ides evenly and more or less moderately arcuate from base to apex, or more strongly arcuate in the anterior two-thirds, and thence to base oblique and convergent, or very feebly arcuate, sometimes obsoletely sinuate, finely beaded ; base feebly arcuate, finely to more or less obsoletely margined, and one-fifth to one-fourth wider than the apex; apical angles distinct, scarcely at all rounded; basal angles obtuse. Proph'i/rrr finely and very sparsely submuricatelj' punctate and more or less distinctly rugulose. Elytra oval, widest at the middle, less than twice as long as wide; base slightly emarginate. mor<' or less feebly sinuate laterally, a little wider than or ecjual to the contiguous base of the prothorax; humeri subacute or feebly obtuse; kkIcs evenly arcuate, apex obtuse; dixc moderately convex on the dorsum, at times slightly depressed, later- ally quite strongly and evenly rounded, evenly and arcuately decli- vous posteriorly, serially })unctate, strial punctures usually rather large and somewhat dee])ly impressed, at times rather small and not impressed, the individual punctures are usually more distant from each other than their own diameters; intervals fiat, frequently feebly convex, with a single series of very small, distantly and irregularly spaced punctures; laterall}' the interstitial punctures become larger, and both series more or less irregular and somewhat confused. E piplein-d' gradually narrowing from base to apex, superior margin feebly sinuate beneath the humeri ; surface finely to obsoletely or dis- tinctly and sparsely punctate. Sfe)')ia shining to subopaque. finely and rather densely punctate, at times rugulose. Parapleurce rather coarsely and (|uite densel}' punctate. Abdomen more or less glalirous. finely and sparsely punctulate. first segment more strongly scul})tured ; surface obsoletely to dis- tinctly rugulose. Zrv/s' moderate. Anterior femora mutic in the sexes; anterior tibial spurs and tarsi slightly dissimilar in the sexes. Male. — Body comparatively slender. Elytra rather gradually narrowed and evenly arcuato-obli(|uely declivous |)osteriorly. Ab- domen slightly oblique, very moderately convex, first two segments more or less impressed at the middle. Anterior spurs of the anterior tibia> slightly the stouter, almost twice as long as the posterior and gradually narrowing from base to apex, both comparatively slender and acute. Tarsi distinctly longer than in the female, the anterior with first joint bearing a minute ]KMicil of brownish modified spinules, surrounded by ordinary piceous spinules on the thickened tip beneath. HK\ISI(»N nl KLKitldlM- MLAISDKI.L. 47 Female. — Body (jiiiti' r(il)ii-l. Klytia rallicr hioadly oval, rounded and more or 1('>.- arcnatcly and vertically d(' posteriorly. .VI)- donien hoi'i/ontal. evenly and ralhei" strongly convex. Anterior s|)nrs of the anterioi' til)iie distinctly the stouter, inoi'e <;radually nai'rowing from hase to a|)e.\ and ahoiit a third lone recognized to aid in the placing of specimens: Forma glabra. — Smooth ami shining. Klytial punctures fine and not impre--ed. with a tendency to some ii-regularity on the disc, in- tervals flat. Forma typica. Klyira with i-ows ase. membranous in apical half, linear towards base: sidea broadly and very feebly sinuate at middle third, apex subacute: base broadly and arcuately lobed at middle, ver\' feebly sinuate laterally. Sternitc parabolic in outline and slightly transverse. Each lobe with the external border more or less evenly arcuate, apex more or less evenly rouiuled. angle feebly evident at times: internal border short; surface rather evenly convex and glabrous, quite coarsely and densely punctate apically, more sparsely so towards base, setose, setae moderate in length, longer about apex, and not very dense. Shins short, with the membrane very sparsely setose at l)ottom. Ft male. — (Jenital segment (juadiato-trapezoidal. somewhat de- pressed and setose. Vnlrt/la ( Plate '.\. fig. 10).— Dorsal plate oblong, sometimes slightly widened at base, frequently deflexed apically, gradually explanate externally from basal third to apical margin with which it is directly continuous; surface plane, finely to rather coarsely and sparsely punctate, setose, seta? rather shoil ; external border feeblv sinuous to 48 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. scarcely arcuate; apical margin not defined from the external apical lobe. ^ Apeie with the outer lobe well (levelo|)ed, the latter three-fourths as wide as the dorsal plate, rather broadly rounded and slightly semi- membranous at tip: internal lobe small and membranous; both lobes set with long flying seta*. Appendage short and more or less conical, sometimes slightly visible from above, directed backwards and slightly inwards. Fossa moderate and fringed with moderately long hairs. Basal prominenceH moderate. SupeHor pudendal membrane longitudinally rugulose and reach- ing to the side of the internal lobe of the apex. Ventrolateral surface rather short, not strongly convex, but more or less gradually sloping to the apex, not usually transversely impressed but sometimes more or less so just behind the narrow transverse basal convexity; submarginal groove well defined beneath the explanate external border of the dorsal plate, not markedly bending inwards at apex to fossa; surfaces finely and sparsely punctate, setose, setae very short, at apex short and flying. Internal margins of the val- vuhv contiguous for a very short distance both at base and apex: genital fissure broadly fusiform. Avith basal half closed by the inferior pudendal membrane. Remarhx on female genital characters. — Forma glabra has the genital segment quadrate in outline and more thickly setose at apex, with the basal convexities more strongly developed. Forma intersti- tialis has the dorsal plate more strongly and coarsely punctate. Habitat. — Forma typica. — Texas (Alpine, June, elevation 1,400- (),000 feet, IT. F. Wickham : I^alde, elevation 030 feet; Granjino, May: Marfa, elevation 4,000-^,800 feet, July, Wickham) ; NeAv Mex- ico (Albuquerque, March, AVickham: Santa Fe Canyon, August, elevation, 7.000 foet, F. H. Snow); Arizona (Fort (xrant; Oak Creek Canyon, Snow) ; Colorado (La Junta, Garland, Pleasant Val- ley, on the Arkansas River, Snow; "Wickham's List). Forma glabra. — Texas; Xew Mexico (IlighroUs, May and August; Cloudcroft, June. Warren Knaus) ; Colorado (Garland, June; Salida) ; Arizona (Chiricahua Mountains, May; Sulphur Springs Valley. June). Forma interstitialis.— Texas (El Paso, July, elevation 3,700-3,800 feet. "Wickham) ; Xew ^[exico (Deming, July. Hubbard and Schwarz; Luna: Albuiiuenjue, March): Arizona (San Simon. July: Sulphur Spring Valley, May: Tucson, April; Chiricahua Mountains, May, Hubbard and Schwarz). Number of specimens studied, 100. Type destroyed. REVISION OF ELEODIINI — BLAISDELL. 49 Type-lot iil'tty as «^iv('n hv Thuinas Say: " Region uf the Arkansas River and near the Rocky Mountains." Sdliriit tij/><-- tant from each other than the length of their diameters; interstitial lines with a few remote, acute, minute punctures; sides rounded and irregularly j)unctured (Say). I>i(i(/n<>stic characters. — Easily recognized from the other members of the subgenus by the smooth polished surface, the elytra being sculptured with rather distantly placed series of coarse punctures; the intervals ar<' flat, with a single series of small distantly spaced punctures. At times the punctures of both series may be equal in size, and the species is then with some difficulty separated from omisxa (see p. I'l and forma glabra); typically the intervals are flat, but often become feebly convex and approach poriata (see p. 03 and forttia ititer.st'itiaVfs). The extreme heterotypical specimens are apt to have a subasperate i)unctuation. Immunif I^Conte appears to be a true synonym, probably more closely related to var. soror. (See p. 50.) The mentuni is moderate in size, triangulo-trapezoidal to parabolo- triangular in outline; surface rather broadly foveate laterally with a median longitudinal ridge, sometimes feebly sculptured, more or less strongly punctate and not noticeably bearded. The prosternum is variable; frequently continuously rounded be- tween the cox;r and Ijehind. but not with the precoxal portion, not mucronate; often almost horizontally produced, at other times convex l)etween the coxae and with a more or less strongly developed mucro l)ehind. The mesosternum at times is quite vertically declivous, at others oblique and more or less feebly concave. The metasternal prcK'ess is as Avide as the abdominal salient is long. The abdominal intercoxal process (male) is slightly transverse, a little wider than the metasternal salient, and equal to the post- coxal portion: the latter is also equal in length to the second seg- ment; the third segment is one-third of its length longer than the fourth. In the female the abdominal process is quadrate, and about a fifth of its width wider than the metasternal salient, and equal in length to the second segment ; the latter is about twice as long as the fourth ; the third segment is equal in length to the post-coxal part of the first. 50780— Bull. G3— 00 1 50 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. The profemora (male) are clavate, gradually tumid externally and subcylindrical in section; less so in the fen^le and frequently somewhat compressed. The tibial grooves are more or less well defined by subcariniform margins which become contiguous and evanescent at basal fourth: the floors of the grooves are usually con- cave, glabrous or sometimes mimitely subasperate. In both sexes the inesofemoi-a are sul)tumid at middle, with the grooves rather narrow and limited l)y subasj^erulate margins, which are more or less evanescent before becoming contiguous at basal third. The sexes have the metafemora usually just noticeably widening from base to apex; grooves as on the mesofeuioi'a. The protibiie are frequenth' subarcuate. feebly compressed. All the tibia> are Avithout tarsal grooves and more or less muricate; the articular cavities ai-e closed. The tarsi are moderate in length and stoutness. The protarsi are about a half of their length shorter than a mesotarsus. Joints two. three, and four are subequal. and combined subequal to the fifth; the first is longer than wide. The mesotarsi are subequal to (male) or a seventh of their length shorter than (fenude) a metatarsus. Joints one and five sube(]ual in length, either one is sube(|ual to the combined lengths of the third and fourth; joints two to four subequal in width and length, or just feebly diminishing in length in the order named. The metatarsi are about a third of their length shorter than a meta- tibia. The third joint is slightly shorter than the second. l)oth com- bined about e(iual in length to the fourth; first joint equal to the combined lengths of joints two. three, and four of a mesotarsus. ELEODES CARBONARIA var. SOROR LeConte. Form as in carhoiuiiid, smooth and more or less feebly shining, sides of the pronotum ap]^arently evenly arcuate: elytral punctures usually moderately small. Head twice as wide as long, more or less moderately convex, some- what coarsely, irregularly, and spar.sely punctate, punctures slightly den.ser on the epistouia : surface usually impressed laterall}'. An- teniKv moderate in length, reaching to the base of the prothorax. sub- equal in the sexes, outer three joints scarcely compressed or dilated, third joint about equal to the next two taken together, the fourth very slightly longer than the fifth, the latter, sixth, and seventh .sub- equal, eighth subtriangular. and slightly shorter than the seventh, ninth and tenth suborbicular. eleventh subovate. Pronotum quadrate, widest at the middle, where it is one-eighth to one-sixth Avider than long, slightly narrowed before and behind; disc moderately convex, quite strongly and arcuately declivous along ISKVISION l)|' i:iJ;n|>llNI I'.I.AISDKLL. 51 till' liitriiil iiiiircly piiiid iihilc ; (ij».i' siihl imiikiUc aiul iiioiv ()!• less obsoletely iiiar^'iiicd : sides evenly, bi-oadly and moderately aicnate from l)ase to ai)ex when \ie\ve<| vi-rticaliy from al)o\e, more stronn\('X on the dorsum. stron\n\v of the anterior tibia' grad- ually nai'rowing fi-om base to apex. First joint of the anterior tarsi with a >mall pencil of modified spinules surrounded by ordinary spinules on the thickened tip beneath. FvinnU. — Body moderately robust. Elytra rather broadly oval, arcuately and somewhat vertically declivoiis j^osteriorly. .Vbdomen horizontal and somewhat strongly convex. -Vnterior sj)ur of tlu' anterior libiie slightly thickened, acute, and gradually narrowing 52 BL'LLETIX 63, UNITED STATES NATIONAL MUSEUM. from base to apex. P'irst joint of the anterior tarsi set with ordinarj' sj^iiiules on tip beneath. • Measurements. — Males: Length, 1(3.5 mm.; Avidth, 6.5 nun. Females: Length, 18.3-19 mm.; width, 8-8.5 mm. Genital cliaracters. — Male characters as in carhonaria. Female. — As in carhonaria, except that the dorsal plate of each valve is narrower, with the sides more parallel and less explanate externally : the outer lol)e of the apex is less broadly rounded. Habitat. — Texas (Eagle Pass and San Antonio, LeConte; Browns- ville. Wickham.) Number of specimens studied, 8. Type, a female in the LeConte collection. Type-locality. — Eagle Pass, Texas. l^alient type-characters. — Thorax quadrate, slightly narrowed an- teriorly and posteriorly ; sides broadly rounded ; anterior angles acute, the posterior obtuse. Elytra strongly striato-punctate, intervals sparsely punctate (LeConte). Diagnostic characters. — On account of the form of the prothorax it somewhat resembles a smooth goryi.^ and LeConte differentiated it from that species as follows: "The thorax is more quadrate and not more narrowed towards the apex than towards the base: the elytra are more deeply emarginate at base, and trnnsvorscly uuich less convex, and those of the female are much less dilated; the pimc- tures are more regular and never have the appearance of fovese." All the specimens that I have received have either been labeled gory'i or unidentified, and it is undoubtedly confused with that spe- cies in collections generally. Tn all cases of doubt the subgeneric and genital characters nuist be carefully studied. The scupltui'ing of soror is (piite like that of a typical carhotutria, except that the serial punctuivs on the dorsum of the elytra are smaller, although as large oi* slightly larger and more distinctly de- fined laterally, the surface is feebly duller, the pronotum more ona)ia, widest at the middle and not noticealily more strongly arcuate in the anterior moiety, as in the female of car- hotmria. From the members of the quadricoUis section of the present sub- genus it is to be known by the form of the anterior spurs of the anterior tibia'. T am indebted to Professor Wickham for the specimens in my collection. REVISION OF ELEODIINI — BLATSDELL. 63 LeConte scpniMlcd the species descrilx-d \>\ him iis iinmitnis from soror as follows: " Of the same form as so/'or, but the thorax is more narrowed hehiiid, almost iis in h\ tjiiadncoUis- the punctures of the rows of the elytra are sometimes placed in distinct grooves, while in other specimens the surface is even." (See rarbonarki.) Mr. Blanchard has pronounced my specimens undoubtedly the same as LeContes type from Eagle Pass, 'I'exas. He also writes that the type and a male from "Texas" have the elytra and under .-^de shining, and two other females from "Texas" are didl. The mental, sternal, abdominal, and crural characters are as in rarbonnfia, except that the meso- and metafemora appear lu be slightly more slender. The protarsi appear to be subequal in le;iglh in the sexes, and the mesotarsi appear relatively slightly shorter. ELEODES AMPLA, new species. Siibfufiiform to fusiform-ovate, subopaque, and smooth. Head twice as wide as long, more or less moderately convex between the eyes, rather broadly flattened anteriorly, usually feebly imjiressed laterally, sometimes across base of the epistoma ; frontal suture dis- tinct and frequently bisinuate; evenly and sparsely punctate, punc- tures coarser on the epistoma and finer on the vertex. Antenna- reaching a little beyond the base of the prothorax, very feebly com- jjressed in outer four joints, scarcely dilated, third joint scarcely as long as the next two combined; the fourth, fifth, sixth, and seventh subc(|ual in length; eighth triangular and as long as wide: ninth suborbicular ; tenth slightly transversely oval; eleventh oval to ovate, and generally distinctly obliquely truncate at tip. Proiiotnni widest at or a little in advance of the middle, about oni'- fourth wider than long; moderately and eveidy convex from side to sidi', feebly so antero-posteriorly, more or less arcuately declivous laterally along the sides; (inely and sparsely or almo>{ obsoletely punctulate; upcj.' slightly and evenly emarginate. more or less obso- letely beaded; sides almost evenly arcuate from base to ajK-x when viewed vertically from above, more strongly so in the anteiior thi'ee- fourths, and obsoletely sinuate at basal fourth when viewed ol)li(|uely from the side, finely Ix'aded ; Ixise quite broadly rounded and more or less feebly sinuate at middle, finely l)eaded. and about a fourth to a third wider than the aj)e\; apical angles subacute; basal angles t>btuse. Prophtn'ii rather -niooth. finely and sparsely pumtulate, usually distinctly rugulose. Eh/ti'd oval, less than one-half to about a third longer than wide; base more or less emarginate. fref|uently sinuate laterally, searctdy to a little wider than the contiguous prothoracic base; humeri subacute, scarcely prominent anteriorly; i^idcs evenly arcuate, apex obtuse and 54 BULLKTIX fi.S, UNITED STATES NATIONAL MUSEUM. ratlier narrowly rounded ; dhc more or less moderately convex, some- limes slightly flattened on the dorsum, more ^trongly and rather eveidy rounded laterally, arcuately declivous posteriorly, punctate: the strial punctures are rather small to moderate in size and some- what closely placed in moderately distant series, usually not at all. but sometimes moderately impressed; intervals flat, rarely slightly convex, and with a single series of rather widely spaced, very fine punctures which at times become slightly irregular, especially later- ally and about apex. Epipleuni moderate in width, gradualh' narrowing from base to apex, superior margin very broadly and slightly sinuate beneath the humeri : surface smooth, obsoletely to finely and sparsely punctulate. Sterna more or less shining, strongly punctate, and rugulose. Parapleiirw rather densely, finely, and subscabrously punctate. Ahdortien usually shining, sparsely and quite regularly punctulate, jnore or less rugulose: intercoxal process and fifth segment more strongly sculptured. Legs long, comparatively moderately stout. Anterior femora mutic and the anterioi- tibial spurs moderately long, slightly dissimilar in the sexes. Anterior tarsi with the first joint feebly thickened at tip l)eneath. Mule. — Body moderately slender and more or less fusiform, an- tenna^ reaching a short distance beyond the base of the prothorax. Elytra quite gradually narrowed in posterior fourth, arcuately and obliciuely declivous. Abdomen distinctly oblique, moderately convex, first two segments more or less impressed at middle, j:)rocess concave. Anterior spur of anterior tibia' about a third longer and a little stouter than the jiosterior. and narrowing moderately from base to a])ex. First joint of the anterior tarsi with the minute pencil of modified spinules on tij) beneath scarcely evident and sui'rounded by the ordinary spinules. Female. — Robust. Antenna' reaching just beyond the base of the prothorax, P^lytra broadly oval, somewhat gradually narrowed and arcuately declivous posteriorly. Abdomen horizontal and rather strongly convex. Anterior si)urs of the anterior tibia' al)out a half longer than the j^osterior and feebly l)roadened. with sides rather slowly but eveidy nari'owing to ajx'x. the latter acute. Anterior tarsi with ordinary spinules on the thickened tip beneath, the latter trans- verse and narrow. Measirrenieiits. — Mti/es: Length, il)-iJ;i nun.; width. (i..')-S..'"» nnu. Femalen: Length, 23-25 mm,; width, 6.2-9.5 mm, (Hiiiitdl rJiatdrferx. male. — Edeago]>hore elongate, flaxseed-shaped (flattened, ol)long-ovate) and more or less arched. liasale oblong; surface strongly convex towards base; sides feebly arcuate. RFA'ISION OF KLKODIINI — HI-AISDKLL. 55 Apicdlr trijiii^iiliir ;iim1 ^li^ditly longer lliaii wide: surface evenly convex, witli a iiaiiow median "groove in apical half; sides broadly sinuate a( (he niidn«rer at apical border. Menil)iane sparsely setose across the bottom of the shuts. Female. — (ienital segment sulxpiadrate, sometimes slightly deflexed at apex, setose. Ve-e/iaracters. — Subopacjue. Prothorax widest at (male) or in advance (female) of the middle. Klytia noticeably narrowing at a|)ical fourth in both sexes; striato-iMUictale. sti'ia' not im|)ressed. strial i)unctures rather small, the series rather distant, interstitial punctures very line. Legs long. 56 BULLETIN 6.3, UNITED STATES NATIONAL MUSEUM. Diagnostic characters. — In collections the females of the present species are usually associated with subnitens, while the males are placed with quadricoVis or carhonarin. On account of its large size and dull integuments ampla has to be carefully differentiated from suhmteiis, from which it differs in the sides of the pronotum. being more strongly rounded and widest at or in advance of the middle, by the less prominent apical angles, and the subgeneric characters. Ampla bears no resemblance to a typical carhonaria ; the dull luster, fine and unimpressed elytral punctuation readily separates it from the latter species, and besides the males are quite fusiform in outline and the legs are distinctly longer, characters never observed in rai-- honaria. A male from Santa Fe canyon. New Mexico, has the strial punctures of the elytra moderately large and slightly impressed, but the form is elongate and fusiform. From quadrUoUis it differs by the anterior spurs of the anterior tibiae of the females, being nuich narrower and evidently narrowed from base to apex, and by the long legs. Specimens from about Brownsville, Texas, are nu)re shining than those observed from elsewhere. For characters separating it from its race dolosa., see below. In fact, ampla is the largest species in the j^resent section of the subgenus. The mentum is very moderate for so large a species and varies quite a little in form — triangulo-trapezoidal to trapezoido-parabolic; the surface is moderately strongly punctate, and the setae are very small, laterally with shallow foveate im])ressions. ralher broadly and longi- tudinallv convex at the middle. The prosternum is variable, usually feebly convex between the coxa\ rounded behind and \vy\ feebly miicronate at middle, or with a mod- erate mucro; sometimes horizontally produced, compressed, and ob- licpiely truncate. Mesosternuin more or less declivous and feebly concave. The met asternal j)rocess is about as wide as the abdominal salient is long. The abdominal intercoxal process is slightly transverse (male) or sub(|uadrate (fenuile). and about a fifth of its width wider than the metasternal process, and subequal in length to that of the post-coxal ])art of the same segment, the latter being (juite ecjual to the second (male), the second segment a little longer (female) than the former. The third segment is about a tliiid longer than the fourth. The profemora are feebly tumid to rather strongly so (male), less strongly and as variable in the female, in both sexes usually more or less slightly compressed, or subcylindrical, in transverse section in certain specimens (males) ; tibial grooves not strongly limited by the REVISION OF ?:LKor)IINI nL\ISF)KLL. 57 moderati' siihcjiriiiifonn m;ii" that cDiivt'i'fc. Ik-coihc (•(»iitiiis, and then I'vanc^cciit at lia-al loiiitli. Tlu' grooves ai-c not notahly cont'avi'. TJie mesofemora air niodti'atcly conipiv'ssi'd. suUfiisitonnly and not str()n<:ly tumid (male), of irradually wider to near apox in onttT half (tVnuiK') ; jrroovi's not usually well ddintMl. inai<.dns rather feehlo. The inetaftMnora are feebly widened outwardly with sides sul>- parallel : <;rooves less (h'fined. inarj^ins more or less asperidnte and evanescent near the middle. The protibia^ are scarcely compressed; all the tiliia* are without tarsal jjfrooves. Tlie tarsi are moderately loneparated by about their own diametei*s; intei-stitial punctures small, distantly >paced, both series more or less irregular at the periphery. Lt'(/.s Umg. Anterior tibial spurs moderately short. Otherwise as in ampla. 58 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Mdlc. — Body moderately narrow, elongate-ovate. Elytra moder- ately narrowed in posterior fourth. Otherwise ^ in ampla. Female. — Moderately robust. Elytra less gradually narrowed in the posterior fourth. Otherwise as in ampla. Measurements. — Males: Length, 18-21 mm.; width, 7-7.5 nnn. Females: Length, 21 mm.: width. mm. Gtnltal cliararfers, male. — Edeagophore scarcely at all arched. Basale elongate and suboval. Apicale elongately triangular; surface extremely sparcely and finely punctulate. Stemite somewhat transverse. Each lobe triangulo-quadrate. with the external border broadly and feebly sinuate at basal three-fourths, thence arcuate to apex, the latter more or less rounded ; internal border short and oblique. Otherwise as in ampla. Female. — Genital segment quadrate. Valvula. — Dorsal plate scarcely concave. Appendage very small. Ventrolateral surface quite bi-oadly foncave before the apex. Otherwise as in ampla. Habitat. — Arizona (along the Colorado River. Beverly Letcher). Number of specimens studied. 7. Sexitypes in my own collection. Type-locality. — Western Arizona. Salient type-cJiaracters. — More or less shining, elongate-ovate. Pronotum quadrate, polished, widest at the middle. Elytra striato- punctate, strial punctures not impressed (male) or feebly impressed and coarser (female). Legs long. Diagnostic characters. — In surface lustre and sculpturing resembles carhonaria; by its larger and more elongate form and long legs it is most closely related to ampla. Mr. Blanchard writes me that it is not to be referred to any species in the LeConte collection. It lias heretofore lieen referred to car- honaria. but the long legs will quickly separate it from that species. A specimen in Mr. Blanchard's collection has the sides of the pro- notum more strongly arcuate. The mental, sternal, abdominal, and crural characters are practi- cally the same as in (imphi. The anterior tarsi are apjiarently less elongate in the male, ami in botli sexe> for that matter: in the female joints two, three, and four are comparatively a little smaller. ELEODES OBSOLETA (Say). BJapfi ohftoleta Say. .Toiirn. Acad. Nat. Sci. riiiln.. III. IS2.3, p. 261.— LkConte, Couiiilete Writings of Thomas Say. II, lSr>9, p. ir»:i. Klrodcn ohsohta Horn. Trans. Anier. Phil. Soc, XIV, 1870, p. :i()8. Eleodcx ohsohtn var. ponata Caskv, .\im. New York Acad. Sci., V, Nov.. 1890, p. 396. HKVISIOX OF KLKODIINI HF.AISDKLL. 59 Oblong-ovaU', sli<,^htly (•l()ii h)ii_ir. iiioderalcly coincx, frontal suture usually distinct, more oi- less feebly inipicssed laterally, rather finely and not very densely punctate, punctures slightly sparser on the ver- tex. AnteuHiv moderate and sulie.(jiial in the .sexes, about reaching to the base of the prothorax. outt-r four joints feebly compreSBcd, slightly and gradually dilated, thiid joint ecjual in length to the next two taken together, fourth just perceptibly longer than the fifth, the latter, sixth and seventh sube(iual, eighth slightly triangular, ninth and tenth irregularly orbicular in outline, eleventh oval and very slightly longer than wide. Pronotdiii widest at or slightly in advance of the middle, sub- quadrate one-fourth to one-third wider than long; disc moderately and quite evenly convex, more or less declivous at the sides, finely, usually irregularly but cpiite evenly punctate; apex feebly and evenly emarginate to subtruncate, finely to obsoletely beaded; Hulen nearly evenly arcuate from base to apex when viewed vertically from above, or more strongly so in the anterior three-fourths, thence oblicpie and more or less feebly sinuate to base, finely beaded ; base more or less evenly and slightly rounded, finely nmrgined and about a third wider than the apex; apical angles distinct and subacute; basal angles usually obtuse. Proph'uni' finely, more or less irregularly and subniuricately ])uni'- tate, rugulose. Elytra oval, less than twice as long as wide, usually widest at about the middle; base feebly emarginate, scarcely to slightlv wider than the contiguous prothoracic base; luimeri subobtuse. scarcely at all j^rominent anteriorly; aides evenly arcuate, apex obtusely rounded: disc rather evenly convex, slightly flattened on the dorsum, laterally more .strongly and rather evenly rounded, arcuately declivous pos- teriorly; striate, rarely estriate or smooth, stria* impressed and rather coarsely, uniseriately pinictate near the suture to nu)re irregularly so externally; inteivals flat to moderately convex, sparsely and irregu- larly punctate, punctures more or less feebly scabrous; stria* less de- fined and i)unctures more irregular and denser laterally. Kpipleunv motlerate in width, gradually narrowed from base to apex, superior margin beneath the humeri very feel)ly and broadly sinuate; surfai-e finely and muricately punctate. Sterna finely to «)l)soletely junictate. Para pic nra rathei* tlensely and finely |)inictate. Abdomen more or less |)olished, finely, sparstdy punctulate, and mon- <)!• le>s rugul()>e: inlcrcoxal proces- more strongly sculptured. 60 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Legs rather slender and moderate in length ; anterior femora mutic in the sexes; anterior tibial spurs dissimilar; a^iterior tarsi feebly dissimilar in the sexes, first joint slightly thickened at tip beneath. Male. — Elongate, elytra rather gradually narrowed posteriorly, quite evenly and arcuately declivous behind. Abdomen moderately oblique, not strongly convex, more or less feebly impressed at middle on first two segments; intercoxal process somewhat concave. Anterior spurs of the anterior tibiae about twice as long as the posterior, slightly curved, just feebly widened and gradually narrowed from base to apex, the latter acute. First joint of the anterior tarsi with the minute tuft of modified spinules scarcely evident, ordinary spinules present on the thiclvened tip beneath. Female. — Kobust. Elytra somewhat broadly oval, and slightly narrowed posteriorly, usually arcuately and rather vertically decli- vous behind; abdomen horizontal and strongly convex. Anterior spurs of the anterior tibia.' usually about a third to a half longer than the posterior, moderately curved and rather gradually naiTowed from base to apex, noticeably widened. First joint of the anterior tarsi with ordinarv spinules on the thickened tip beneath. Four forms may be recognized : Forma glabra. — Elytra estriate and more or less smoothly sculp- tured. Forma typica. — Elytra striato-punctnte, intervals slightly convex, subasperate. Forma annectans. — Elytra rather stnmgly slriato-punctate. iu.cr- vals strongly convex ; sculpturing subasperate. Forma punctata. — Elytra estriate, irregularly and more or less muricately punctate. Measurements. — Male: Length, 12.5-lG mm., width, h-~i nnii. F(- viale: Length, 14.5-18 mm.; width. (J.5-7.r) mm. Genital rlianwtevs, ?««/£'.— Edeagophore (Plate 3, fig. 1) flax-seed- shaped (flattened oblong-ovate), scarcely arched. Basale oblong-oval, glabrous, moderately convex; sides more or less feebly arcuate. Apicale slightly elongate and triangular; surf are in basal moiety evenly convex, in apical half a median longitudinal membranous groove; sides moderately arcuate in basal half, sinuate at middle, hence feebly or scarcely arcuate to apex, the latter acute but not acuminate; Ijum- broadly IoIkhI at middle two-fourths, broadly and feebly sinuate laterally. Steniiir (Plate 3, fig. 2) parabolic in o\itline. Each lobe with the external border more or less evenly arcuate from base to apex, fre- (piently slightly sLiuiate in basal half; apex evenly rounded, angle usually not evident; internal border more or less obliipie and feebly sinuous; stn-face rather sparsely punctate in a|)ical moiety, setose, REVISION OF KLKODIINI — HLAISDKLL. 61 seta' not donso and nioilcratc in Icnjifth. lon^ci" on apiral horclcr. Mcnildiuic \('rv sj)arsi'ly setose across the bottom of I he sinus. /''< 7/(f//r.- -(lenilal se«j;ni('nt (T*late '.). fi<;. '5) (jiiadiiitc .s<»nit'\vlia( de- pressed and setose. Vdlriihi. -Dorsal plate oltlon^'. e.\|)lana(e exteinally from I»ase to apex. ^Ial)i-ons; smfdcc more or less plane, never excavate(l. some- times with the apical portion -li^rhtly deHexed. sparsely punctate, seta' moderate in leULrth. loiifier apically: external mai'«riii feebly sinuate towards hase. feehly arcuate towards apex, the latter with the external lohe stronfxly developed, three-fourths jrs wide as the dorsal plate and hroailly rounded: internal holder strai as loii^ as the wiilth of a mesotihia at apical ihii'd. The femoral and tihial chanK'ters ait- |»ra(lically a> in mnpliK ex- cept that the lelendcr. The protarsi in the male are a little stouter than in the female; ttic ditl'erence in len«;th is less marked, those of the male hein<: just a little lon^^cr. The protarsi are about a third (male) or a little less (female) of their len«;th shorter than a mesotarsu.s. Joints two, three, antl four are sul)e(iual in size, each about as wide as long and together scarcely as long as the fifth; the first is a little longer than wide. The mesotarsi are about a third (male) or a sixth (female) shorter than a metatarsus. .Joints two to four diminish just a little in length in the order named; the fifth is about equal to the combined length of the second and third, and subequal to the first. The metatarsi are about a fourth of their length shorter than a metatibia. Joint three is just noticeably a little shorter than the second, and the two together are subecpuil in length to the fourth, the latter subeijual with the first. ELEODES OBSOLETA var. PORCATA Casey. Oblong-ovate, moderately elongate, black, elytra sulcate. Head twice as wide as long, frons slightly flattened to feebly con- vex, faintlv impressed laterallv, frontal suture usuallv finelv im- pressed ; surface somewhat densely punctate, more coarsely so on the epistoma and finely and sparsely on the vertex; ontoma' moderate in length and stoutness, outer four joints very slightly compressed, more or less feebly dilated, third joint about equal to the next two taken together, the fourth slightly longer than the fifth, the latter, -ixth, and seventh subequal, eighth feebly triangular, ninth and tenth circular in outline, eleventh oval to ovate and very slightly longer than wide. rronotum subquadrate, one-fourth to one-third wider than long, widest in advance of the middle as viewed vertically from above, at the middle when viewed oblicjuely from the side: disc gabrous and .shining or feebly alutaceous, moderately and evenly convex, more or less arcuately declivous laterally, finely and rather sparsely punctate, the punctures becoming a little coarser, but not very dense laterally: ipcr slightly emarginate m circular arc. finely or obsoletely mar- gined : sid( s quite evenly and moderately arcuate in anterior two- thirds, thence less arcuate and oblique to base as viewed vertically 64 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. from al)()ve, or inoie strongly arcuate at the middle, thence oblique and moderately convergent, feebly sinuate to ba.-^ as viewed obliquely from the side, finely beaded; hn.se quite evenly and feebly rounded, finely to somewhat obsoletely margined and about one-fifth wider than the apex; apical angles distinct, not acute, frequently narrowly rounded ; basal angles obtuse, sometimes more or less rounded. Proplennv finely, sparsely to rather densely submuricately punctate and more or less rugulose. Elytra oval, usually widest at about the middle, less than twice as long as wide; base broadly and feebly emarginate, as wide as or slightly wider than the contiguous prothoracic base; humeri more or less feebly prominent; sides evenly arcuate, apex not very narrowly rounded; disc quite evenly convex, occasionalh^ slightly flattened on the dorsum, laterally rather evenly and strongly rounded, arcuately declivous ])osteriorly, deeply sulcate, the sulci finely, uniseriately to irregularly and nniricately i)unctate; intervals about equal in width to the sulci, very convex, usually strongly defined, finely, sparsely, and irregularly punctate; inflexed sides feebly sulcate, intervals feebly convex, irregularly and rather more densely punctate. Epipleurcp, moderate in width and gradually narrowing from base to apex, superior margin feebly and broadly sinuate beneath the humeri ; surface finely, more or less sparsely, submuricateh' punctate. Sterna more or less finely, densely, submuricately punctate and rugulose. Paraplenra' finely and rather densely punctate. Abdomen somewhat shining, sparsely to more or less densely punc- tate, especially on the first and last segments, more or less rugulose. Legs moderate, comparatively rather longer than in 'obsoleta. Anterior femora mutic in the sexes. Anterior tibial spurs dissimilar. Anterior tarsi dissimilar in the sexes, first joint slightly thickened at tip beneath, with a small tuft of spinules. Male. — Body somewhat slender. P^lytra rather gradually nar- rowed posteriorly, evenly arcuately and somewhat ol)liquely declivous at apex. Abdomen slightly oblique, moderatelj' convex and more or less broadly flattened at middle on first two segments, intercoxal ])rocess more or less concave. Anterior spurs of the anterior tibia? about a half longer than the posterior, distinctly wider and gradually narrowing from base to apex. Anterior tarsi longer than in the female, first joint Avith a minute and inconspicuous tuft of modified spinules, surrounded by ordinar}' spinules on the thickened tip lieneath. Fenude. — Body robust. Elytra rather broadly oval, rather rapidly narrowed, arcuately and vertically declivous posteriorly. Abdomen horizontal and strongly convex. Anterior spurs of the anterior tibiai about a thir apical margin of the dorsal plate. External lobe set with long flying seta', a few on the internal lobe. Appendage small, inferior, and more or less compresso-mammilli- form. Fossa rather large and fringed with setao. Hti.saJ prominoues not conspicuous. Supenor pudendal membrane as in obsoleta. Veutrohiterni surface feebly convex toward l)ase. broadly and shal- lowly concave before the apex, glabrous, finely and very sparsely l)unctate, .sette minute, denser at apex: submarginal groove shallow .ind not well defined at the ajiex. not reaching the internal lobe. Internal nuirgins of the valves contiguous at basal sixth, (ienital fissure quite broadly fusiform. Inferior pudendal membrane regulose and largely visible. It is to be noted that the sides of the dorsal plates are not as strongly explanate as in ohsoleta. uU780— Bull. Go— O'J D 66 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Habitat. — Arizona (Fort Apache, Casey ; Galiiiro Mountains, May ; Fort Grant, July; Chiricahua Mountains, ^V^iiy. Hubbard and Schwarz; "Williams, July; xVsh Fork. June: Flagstaff. July, Barber and Schwarz: Kearn's District, Navajo Indian Keservation, April A. W. Barber; Peach Springs, AValnut, Winslow, July; Seligman, July, IT. F. ^Vickham: Prescott, H. C. Fall); New Mexico (Pecos, July). Number of specimens studied, 85. Tyi^e is in Col. Thomas Casey's collection. Type-locality. — Fort Apache, Ariz. Salient type-characters. — Prothorax with the disc evenly convex, finely, sparsely punctate, the punctures becoming rather coarse later- ally but not very dense ; apex feebly emarginate ; sides more strongly arcuate before the middle, thence moderately convergent and gradu- ally feebly sinuate to the basal angles, which are very obtuse but not distinctly rounded; base feebly and evenly arcuate. Elytra Avith the disc very deeply sulcate, the sulci finely, rather sparsely and muricately punctate, the intervals equal in width to the sulci, very convex, finel}' and sparsely punctate (Casey), Diagnostic character's. — The strongly sulcate elytra separates this race from all others of the group. The individuals are unusually larger and more elongate than ohsoleta. Well developed specimens appear quite distinct from ohsoleta, but they mark a heterotypical variation Avhich is connected to the typical form of ohsoleta by an abundance of mesotypes of j^ll sizes and sculpturing, so that it can only be considered as a good variety. Some individuals are nearly as large as ampla, notably a series from Fort Grant, Arizona, collected by Hubbard and Schwarz. I have authentic examples before me kindly contributed to Mr. Charles Fuchs and myself by Colonel Casey. The mentum is moderate and varies in form from trapezoidal to trapezoido-parabolic; surface is rather strongly punctate, setae small, moderately convex and more or less strongly foveate laterally and narrowly impressed along the apical margin, the latter being fre- quently deflexed. In Casey's types the prosternal process is prolonged and promiiient. In the series before me it is very variable — from a small mucro to well developed, or compressed and subtruncate behind. The mososternum varies relatively Avith the foregoing, concave to convex, slightly oblique to vertically declivous. The intercoxal process of the first abdominal segment is subquad- rate (male) or slightly transverse (female), and about a third of its width wider than the metasternal salient. The metasternum laterally between the coxae is as long as the width of a mesotibia at apex. HKVISION OK KI.KoDIINI m.AlSDKl.L. 67 The j)ost-c()xal piirt of I lie lirst s('»;iik'm( is ('(piiil in l('n<;tii to the process, e(|iiiil in leii^tli lo tlir second sej^ment in (he male, and the third se«!:nuMi( in the feniak-. In thi' inaU' the third segment is a third of its length h)n«;ei- than the fourth; in the femah' the second is twice as h)ng as the fourth. The legs are nsually qnite strongly scnlptni-e»|. The profemora and the metafemora are as in rtirhoiKtrid. The mesofemora are usu- ally, gradually and feehly widened from hase to apex. The |)rotil)ia' are >-ul)cvlindrical in transverse section. All the til)ia> are without tarsal grooves and the articular cavities are closed. The tarsi are moderate in length, comparatixely a little stouter than in obsohta. A i>rotarsus in the male is about a sixth of its length longer than in the female, and suhetpial in stoutness in the two sexes. The ii'iatiM' ])i-o])ortions of the tarsi to each other, and the con- stituent joints of each one to each other is practically the same as in ohaohta. ELEODES KNAUSII. new species. Oblong-ovate to ovate, more or less shining, estriate and moder- ately convex. Head twice as wide as long, feebly convex, frontal suture feebly marked, frons very slightly impres.sed laterally, somewhat coarsely, irregularly and more or less densely punctate, especially on the epis- tonia. Aiitcxma' moderate in length, outer four joints feebly com- pressed, distal three slightly dilated, third about as long as the next two taken together, fourth scarcely longer than the fifth, the latter, sixth and seventh subequal in size and about as wide as long, eighth shorter and apparently a little wider than long, ninth subtriangular and slightly transverse, tenth transversely oval, eleventh ovate. Pronotum subquadrate, widest just in advance of the middle when viewed vertically from alwve, at the middle when viewed obli(juely from the side, and about a third wider than long: disc evenly and moderately convex, rather arcuately declivous at the sides and apical angles, quite finely, irregularly and somewhat sparsely punctate, punctures slightly denser at the sides; apex more or less feebly emarginate in circular arc. finely and more or less obsoletely beaded; .s/V/r.s- moderately arcuate in anterior three-fourths, thence obli(|uely convergent to base as viewed vertically from al)ov(>. or more strongly arcuate anteriorly, thence convergent and moie or li'ss sinuate to base when viewed ()bli(|uely from the side, finely beaded: has, feebly arcuate, sometimes feebly simiate at the middle, linely and iiioic or le>s ob>oletely beaded, oiie-lifth to one-thii'd wider than the apex: apical angles distinct, not at all prominent anteriorly, sometimes very feebly and nanowly rounded: ba>al angles obtuse. 68 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Propleiirii' obsoletely to finely, sparsely submuricately punctiilate and rugulose. • Kh/tra oval, distinctly less than twice as \o\\^ as wide, widest at the middle: hasc more or less emarfjinate. usiinlly feebly sinuate each side of the middle, and generally slightly wider than the contiguous prothoracic base; humeri more or less exposed and obtuse: sides evenly arcuate, apex obtuse and rather narrowly rounded: iiini.: width, T-M mni. Cithital r piiiUndiil mcmhrane longitudinally rugulose and reaching to the base of the internal apical lobe. Basal prominences not noticeable. Veutrolatcnil sitrfacc not sh'ongly convex in basal moiety, more or less concave laterally before the apex, but not transversely so; sub- marginal groove broad and shallow beneath the explanate external border of the dorsal jjlate and apical lobe, meeting the fossa at its external edge; external apical lol)e not strongly developed beneath; surface finely and irregularly punctulate and very finely setose. Inter- nal margins of the valvescontiguous for a short distance at base and apex, between which the fissure is rather broadly fusiform, and closed in basal two-thirds by the inferior pudendal membrane, the latter feeblv rujrulose. 70 BULLETIX 03, I'XITED STATES NATIONAL MUSEUM. II ah /'f of. Sew Mexico (Cloiidcroft. James Canyon, June, Warren Knaus). Number of specimens studied. 8. Sexitypes in my own collection. Type-locaJity. — Cloudcroft. New Mexico. Collector, Warren Knaus. Salient type-chai'acterH. — More or less shining, estriate and moder- ately convex. Pronotum subquadrate; disc rather finely, irregularly and sparsely j^unctate, j^unctures denser at the sides; apex very feebly emarginate; apical angles distinct and not at all prominent ante- riorh' ; basal angles obtuse. Elytra with the humeri more or less exposed ; disc almost coarsely, irregularly, and rather densely punctate, punctures subequal in size and obsoletely submuricate; laterally denser, with a slight tendency to rugulosity. Legs rather short and somewhat slender. D'layuo^^tic cliaracterH. — Resembles the robust form of extricata or r'deyi in general outline. If it inhabited the region where parvicollis is found it might be mistaken for that species; some forms of leeontci resemble it. First of all, the genital characters distinguish it from all the above and associates it with ohsoleta which it resembles, but less strongly in general habitus. It is usually confounded with extricata. from which it diifers in the nuitic anterior femora of the male, the more strongly arcuate sides of the pronotum at anterior two-fourths, and besides the punctuation is quite different. In r'dey'i the female has the anterior spurs of the anterior tibise strongly developed, Avhile in knansii they are but feebly broadened. The spurs have greater develo2:)ment in the male of rileyi also than in the male of kxaasii. In parricoUis and Iccontci the lateral margins of the pronotum is distinctly visible from above, while in krumsii the pronotal sides are arcuately declivous. The genital and tarsal characters are also dis- tinctive. KiHutsii difl'ers from typical ohsoleta in its smooth and shining sur- face and estriate elytra. It is also more robustly ovate than in the smooth form of ohxoleta. I am iiulebted to Mr. Warren Knaus for (bis interesting species, and 1 take i)leasure in dcHlicating it to him. Kiiaas'/'t appears to bear the same relation to the Carhonaria section that rileyi l)ears to the Qiiadrtcolli.s section. In this respect the two species are analogous. There is a specimen before me from Cananea, District of Arizpe, State of Sonora, iNIexico, that resembles knansii in form, but it is more alutaceous and smoother, the stria' of punctures are more evident and the interstitial i)unctnres smaller and less conspicuous. The anterior til)ial spurs are also feebly develoi)ed. and while the study of the REVISION OK KI-K<)I)IIN'I- I'.LAISDKLl.. 71 United States speciiiiciis leaves the rf'latioiishi])- in doiil)!. a kiiowl- ed«j^(' of the Mexican coiit iiiiifeiit would iiiiddiiWledly l)e more elucida- tive. At pi'esent hiKnisii ajjpoars as a derivative of ohsuh-tn. The iiieiituin is more oi" less trape/,oido-[)aral)olic, rather densely punctate and ^uMovfale laterally, somewhat coincx at the middle; tile seta' ai-e scarcely evident. Tlie pi'osternnm is moderately prodiicecl hehind. feehly conve.x or liori/.ontal helwcen the coxa- and trian«rulaily dilate(l hehind the median transverse axis of the acetahtda; the muci'o is small, at times the process is compressed and more or less vertically truncate hehinil. The mesosternum is quite vertically declivous and more or les.s feel)ly concave. The intercoxal process of the abdomen is sub(|ua(lrate (male) or slijrhtly transverse (female), and ahout a fourth (male) or a third (female) of its width wider than the metasternal salient. The nietasternum laterally between the coxie is as long as the width of a mesotibia at apical third. The post-coxal i)art of the lirst abdominal seirment is subequal (male) or e(|ual (female) in length to that of the process. In the male the second segment is e(|ual to the length of the process; the third is al)out e(|ual to the j^ost-coxal j)art of the first: the fourth is about two-thirds as long as the second. In the female the second segment is al)out twice as long as the fourth, the third is e(|ual to the jM)st-coxal portion of the first. The legs are noticeably short. The i)rofemora of the male are moderately clavate and feebly com- pressed ; in the female feebly tumid and moderately C()m|)ressed ; the tibial grooves are limited l)V feeble Init distinct subcariniform mar- gins w liicli meet and become evanescent at the basal fourth. In both sexes the meso and metafemora are ([uite similar. The mesofemora have the surface lines feebly but distinctly arcuate, and the femora in outlini- may be said to be subfusiform. The meta- femora have the superioi- and inferior surface lines quite parallel. The grooves are limited by asperulate margins which converge at basal third on the mesofemora and become evanescent, while on the metafemoi-a they become evanescent about the nuddle without be- coming contiguous. The tibia' are all more or less feebly arcuate, and rather more strongly widened apii-ally than is usually observed: the tarsal grooves are aljsent and the articular cavities are closed. The protibi;e are observed to be feebly compressed or subcylindrical. The tarsi are moderately long and rather stout when considered in a comparative sense. The protarsi of the male are about a fourth longer than those of the female. 72 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. The protarsi are about a fourth (male) or two-thirds (female) of their length shorter than a mesotarsus. « The mesotarsi are about a ninth — less in the female — of their length shorter than a metatarsus. The metatarsi are about a seventh (male) to two-fifths (female) of their oAvn length shorter than their i-espective metatibia. The relative proportions of the joints of each tarsus are practically the same as in ohsoleta. ELEODES OMISSA LeConte. Eleodes omissa LeConte, Proc. Acad. Nat. Sci. Phila., ISoS, p. ISG. — Horn, Trans. Amer. Philos. Soc, XIV, 1870, p. 308. Eleodes intenupta Blaisdell, Ent. News, III, Dec. 11HJ2. p. 241. Oblong-ovate to ovate, elongate, and more or less shining. Head twice as wide as long, more or less convex, feebly impressed laterally, frontal suture fine and usually evident, rather finely and not densely punctate, punctures sparser on vertex. Autennw moderate, outer four joints very feebly compressed, scarcely dilated, third joint of|ual in length to the next two taken together, fourth slightly longer than the fifth, the latter, sixth, and seventh subecjual, eighth just the least shorter, subtriangular, and longer than wide, ninth and tenth somewhat circular in outline, eleventh ovate. Pronotum subquadrate, Avidest at or in front of the middle as viewed vertically from above, one-fourth to one-third wider than long; disc evenly and moderately convex, more or less arcuately declivous at the sides, finely, sparsely, and more or less irregularly punctulate. punctures just a little coarser and denser laterally; apex feebly emarginate or subtruncate in circular arc. finely or obsoletely beaded ; sides evenly and moderately arcuate in the anterior two- thirds, thence to the base more or less straight and converging (viewed vertically from above), or evenly and rather broadly arcuate, converging and more or less feebly sinuate (viewed obliquely from the side), finely beaded; hase slightly rounded to subtruncate, finely margined, one-ninth to a fourth wider than the apex; apical angles subacute to obtuse, rarely feebly prominent anteriorly; basal angles obtuse, frequently apparently rounded when vicAved vertically from above. Propleunv finely and very sparsely punctate, more or less rugulose, rarely rugose. Elytra oval, widest at the middle, less than twice as long as wide; hase feebly emarginate to truncate, usually scarcely wider than the contiguous prothoracic base; htimcri obtuse and not prominent: sides evenly arcuate, apex obtusely rounded; disc moderately convex on the dorsum, rather strongly and evenly rounded laterally, arcuately declivous posteriorly, punctate, punctures frequently of the same RFA'TSTON (>F KLKODIINT — RLAISDKLL. 73 size, fine, diffusely arranged, not dense, generally some evidence of a serial order; the strial punctures are frequently slightly the larger, the series are moderately distant and rarely impressed. ICpijih'iird' moderate in width, gradually narrowing from l)as«> to apex, very feebly sinuate along the superior margin beneath the humeral region; surface finely and sparsely punctulate. Sterna more or less shining, rather (.lensely punctate and more or less rugose. ♦ Parapleurd' quite densely punctate. Ahdomt')! glabrous, finely and very sparsely punctulate, usually more or less distinctly rugulose — almost rugose at times. Lef/s moderate in length and stoutness, sometimes moderately thickened; anterior femora mutic and the anterior tibial spurs slightlv dissimilar in the se.xes; anterior tarsi with the first joint slightly thickened at tip beneath and slightly dissimilar in the sexes. Male. — ()l)l()ng-ovate. rather slender and elongate. Elytra grad- ually narrowing in the posterior third, arcuately and somewhat obliquely declivous posteriorly. Abdomen oblique, moderately con- vex, more or less flattened at middle of the first two segments. Anterior spurs of the anterior tibia' slightly thickened, nearly twice as long as the i)Osterior, both comparatively short. First joint of the anterior tarsi set with a small tuft of spinules, the modified spinules scarcely evident. Female. — Ovate and robust. Elytra Ijroadly oval, and somewhat gradually narrowing in the posterior fourth, arcuately and vertically declivous behind. Abdomen horizontal and strongly convex. An- terior tibial spurs rather varial)le in length, the anterior distinctly broadened and gradually narrowing from, base to apex, sometimes with sides slightly arcuate in basal half, and about a third longer than the posterior, both acute, tapering, and stouter than in the male. First joint of the anterior tarsi set with a small transverse tuft of ordinary spinules on the thickened tip beneath. I have observed oidy four forms worthy of distinction in the hun- dreds of specimens before me of this variable species. Forma typica. — Thorax somewhat transverse, apex feebly emar- ginate or truncate, angles somewhat obtuse and not at all j)rominent anteriorly. Femora (lixthuthj tltirl-ened. Male. — Elytra rather more elongate than usual. Female. — Elytra with the sides more strongly arcuate anteriorly than usual. Forma catalinae. — Pronotmu more strongly punctate, especially laterally. Femora more or less thickened. Forma communis, — Thorax as in the typical form. Elytra with the sides less strongly and suddenly arcuate anteriorly. Femora not noticeablv thickened. 74 BULLETTX 03, UNITED STATES NATIONAL MUSEUM. Forma emarginata. — Thorax (quadrate, apex distinctly emarginate, angles subacute and somewhat prominent antericy;ly. Measurements. — Males: Length. 10-11) mm.; width, 6-7 mm. Fe- males: Length, 18-23 nnn.; width. 8-10 mm. Anomaly. — The specimen described by me" as interrupta belongs here. The prothorax has the side margin at middle rather abruptly interrupted. The eh'tra has the disc sulcate posteriorly. Length. IG.G mm.: width, 7.1 mm. Genital characters, male. — Edeagophore (Plate 2, fig. 1) elongate- ovate to fusiform, and more or less arched. Basale feebly oblong-oval to oblong; surface evenly convex; sides feebly arcuate, sometimes converging slightly toward the apex. Apicale triangular, slightly elongate: surface moderateh^ and evenly convex, witli a median longitudinal grove in apical half, sometimes extending from apex to base, slightly dilated and mem- branous apically, gradually narrowing to become linear basally; sides moderately and evenly arcuate in basal half, thence rather feeblv sinuate to apex, the latter subacute: base rather l)roadly lobed at middle and feebly sinuate lateralh'. Sternite (Plate 2, fig. 2) transver.sely parabolic. Each lobe more or less subparabolic in outline: external border straight to evenly arcuate, the apex being continuously but more narrowly rounded, angle sometimes evident : internal border quite short and feebly arcuate; surface scarcely convex, sparsely punctate and setose in apical three-fourths, seta^ rather long on the apical border. Mem- brane distinctly and sparsely setose at the bottom of the sinus, the latter short. Female. — Genital segment (Plate 2, fig. 3) quadrate, moderately explanate laterally and setose. Valvida. — Dorsal plate oblong, moderately narrow, sides subpar- allel; svrface plane, glabrous, sparseh' punctate, iuipunctate at l)asal third, setose, seta; moderate and reclining; external border straight to feebly arcuate, coutinuously so with the more strongly and evenly rounded apical border, which is more or less inwardly oblique; in- ternal lobe short and separated from the external by a small sinua- tion; external lobe set with rather long seta', the internal with a few rather short ones; internal border slightly sinuous. Appenda(/e just visible from above, ^hort mammilliform, with a pencil of seta* at tij). Fossa moderate and in the internal wall of the external apical lobe. Basal prominences scarcely evident. Superior pudendal niefnhrane longitudinally rugulose, reaching about to the internal lobe of the apex. " Eiit. News for Dec., 1902. I{KVISI(>N or KLKdDIINI- lU.AISDELL. 75 Ventrolateral surface (Plate "J. li^-. 1) iiKMU'i-iitcly convex, slightly concave laterally before the aj)ex; surface sparsely punctate and liiidy setose; suhniar^inal groove well developed heneath (he expianalc ex- ternal border of the dorsal plalc. pas>in;i i)l)li(|uely iiiwiird limcath aj)ex (o (he inner an<;le of the fossa, endin^^ at the internal apical lobe. Internal niare that are widest in front of the middle: for here it will be seen that the sides of the pronotal disc are most strongly declivous U'liind the middle and that the true margin is di>placed downward and not visible when tlu> pronutuni is viewed vertically from above; 76 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. when viewed obliquely from the side the normal marginal curve will be seen and that in reality the pronotum is wi4est at the middle. It must also he borne in mind that the pronotal disc is normally moderate!}^ declivous lateral!}' in the present subgenus. In many specimens (mostly male, but some females as well) the ])ronotal sides are less strongly deflexed and appear quite evenly rounded from apex to base, and as a result the pronotum is broader as com])ared to those with strongly deflexed sides where the thorax is less I'ounded and more narrowed to the base. Although the i)unctuation is variable, usually there is always some evidence of a serial arrangement ; rarely, the strial ])unctures are rather large and even moderately impressed; these specimens ap- )>i'oa('h ((irhoiHiiid in this res[)e("t, but oin'o^sa is as a rule more elongate in the nude and more broadly ovate in the female. The strongly jiunctate individuals are not necessarily confined to the region bounding tiie Colorado River on the west, l)ut are to be taken at any part of the distributional area. The larger Southern California specimens are to be referred to omiss-a, as the characters exhibited by the anterior tibial spurs are those characteristic of the present section of the subgenus; with these conceptions of om'tsm and the elimination of quadricollis everything becomes clear. Ampla is a larger, more elongate species with elongate legs. For the diffei-ential characters of the varieties pygmcea and penin- sularis see below. I am indebted to Prof. H. C. Fall for notes on comparisons of specimens with the LeConte type. The mentum is variable, rather small to moderate in size, and tri- angulo-trapezoidal to trapezoido-parabolic; surface rather strongly jMUictate, more or less foveate laterally and convex at middle. The prosternum is convex or horizontal between the coxa' and mucronate behind ; the mucro may be small and subacute ; larger and conical in contour, or compressed and obliquely to nearly vertically truncate behind. The mesosternum is more or less concave, and varies in the degree of its obliquity. Tlu^ intercoxal process of the abdomen is quadrate (male) or a little transverse (female), and about a fifth (male) or a sixth (fe- male) of its width wider than the metasternal salient. The metasternum laterally between the coxa^ is as long as the width of a mesotibia at the middle. The post-coxal part of the first abdominal segment is equal (male) or subequal (female) in length to that of the process. In the male the second segment is about a half longer than the third and twice as long as the fourth, and equal to the length of the process. RP:VISI()X ni. KI.KOIUINI — BLAlsn?:LL. 77 In the iViujilc (lie .-i'cond ^c^iiit'iit is ;il)»)iit ii third of its length lonr and iiiierior borders snbparallel. 'I'he grooves are dull and feebly subasperate, the margins finely lisjjcrulate and more or less evanescent before becoming contiguous. The protibia' are moic or less feebly arcurate and slightly com- pressed. All the tibia' are usually without tarsal grooves, although an occasional specimen exhibits rudimentary grooves on the i)rotil)iie with the articular cavities slightly open, otherwise the cavities are closed. The tarsi are moderate both as to length and stoutness. The protarsi in the male are just noticeably longer than in the female, and specimens of corresponding size must be selected, as a large female compared with a small male would not show the true diti'erence. The protarsi are about two-fifths (male) or three-sevenths (female) of their length shorter than a mesotarsus. Joints two, three, and four are sube<}ual. just noticeably smaller in the female, and together about ('(ptal to the fifth in length; the first is about equal to the combined lengths of joints three and four. The mesotarsi ar(> about a seventh (male) or an eighth (female) of their length shorter than a metatarsus. Joints one and five are sul)e<]ual in length, and the combined lengths of two. three, and four just a little longer than either. The metatarsi are about three-fourths (male) or a half (female) of their length shorter than a metatibia. Joint two is a little longer than three; the first is as long as the comljined length of third and fourth. ELEODES OMISSA var. PYGM^A. new. ()l)long-ovate to ovate, more or less shining and snu)oth. Ilcnd finely punctate, punctures denser- on the ej)istoma, frons feebly convex to flat. Antenna' moderate, outer four joints scarcely dilated, fourth, fifth, sixth, seventh, and eighth subequal in length, ninth and tenth suborbicular and slightly transverse. Pronotum quite quadrate, widest at or just in front of the middle, one-fifth to one-fotirth wider than long; dixc evenly and moderately convex from side to side, finely and sparsely punctate; in uiitohl himdreds. I luivt* nevor foiind tliciii so plentiful in I'ccciit yi'iirs. Sjx'cinuMis from Tulan' and Kern counties represent a slightly dill'erent incipient race, which may i)e characterized as follows: Forma borealis. — MaN's less ol)lon*j and a little more ovate. T am indebted to Mr. lvalj)li Iloppinir for the |)rivile;re of studyin«j^ a lar:lith joint scarcely .shorter than the seventh. Pronotum subquadrate, widest at the middle, a fifth to a fourth wider than lonir: di.sc evenly and moderately convex from side to side, scarcely more arcuately declivous laterally, but distinctly so at the apical angles, .somewhat obsoletely, finely and sparsely punctu- late; npcv truncate to feebly emarginate in circular arc: aides moderately and rather evenly arcuate, somewhat oblicpie posteriorly, briefly and very feebly sinuate before the base, as seen obliquely from the side: hasc feebly rounded, and scarcely to one-fifth wider than tile apex; ai)ical angles subacute, with a tendency to become feebly prominent anteriorly; basal angles obtuse and not rounded. Propleurn' obsoletely punctulate and more or less rugulose. Eh/ti-a oval, usually widest i)ehind the middle: dixr striato-pnnc- tate, punctures generally not distinctly defined. nu)re or less eroded, -tria' somewhat imjiressed. intervals apparently somewhat feebly con- vex: strial jiunctures rather moderate in size and rather closely placed, intervals minutely, inv^ularly and obsoletely punctulate. punctules ratlu'r more distinctly defined laterally, but not usually confu-«'d. Kpiplenrt^ obsoletely punctulate. Sterna obsoletely i)mictate and more or less rugose. 80 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Legs rather somewhat slender. Femora moderately and rather sparsely punctate; anterior tibial spurs rather feebly developed. First joint of the anterior tarsi very feebly thickened at tip beneath. Otherwise as in omissa. Male. — More or less ol)long-ovate and somewhat slender. Abdomen feebly oblique. First joint of the anterior tarsi with a minute and pointed tuft of modified spinules on tip beneath. Female. — Ovate, anterior spur of the anterior tibia3 not strongly differentiated and not elongate as usual. Measurements. — Males: Length, 15-17 nun.; width, 6-G.5 nun. Females: Length, 16-18 mm.: Avidth, 7-8 mm. Genital characters. — Male. — Edeagophore as in omissa. Steimite parabolic in outline, slightly transverse. Each lobe sub- triangular; external border quite evenly arcuate, with apex introrsely placed and narrowly rounded; internal border straight; surface slightly convex, glabrous and not densely punctate in apical half, setse moderate in length and not dense. Membrane sparsely setose at bottom of the sinus, the latter rounded and subparabolic. Female. — Genital segment quadrate: dorsal surface plane and setose. Valrula. — Dorsal plate oblong, moderately wide and explanate apically; surface nearly plane, very glabrous, sparsely and finely punctate, setae moderate, longer towards apex; Z>c»rc?6^rs subparallel, the external sinuous at basal third, thence feebly arcuate to and con- tinuously so with the broadly and strongly rounded apical margin, which is minutely sinuate at internal fourth ; internal margin sinuous. Apical external lobe inferior, the internal small, both with a few long flying hairs. Appendage small mammilliform, not visible from above, with few long hairs on tip. Fossa moderate and frin.ged with long soft seta\ Basal prominencex not visible laterally. Superior pudendal membrane longitudinally rugulose and reaching to the base of the internal apical lobe. Ventrolateral surface strongly convex at the basal third, thence to apex broadly concave; submarginal groove broad and well marked l)asally, thence ])assing into the general concavity: surface in apical two-thirds sparsely and finely punctate and setose. Internal nuir- gins of the valves contiguous at basal sixth and subcontiguous in apical two-sixths; fissure broadly fusiform and closed at the basal half by the inferior pudendal membrane, the latter rugulose. Habitat. — Lower California (Sierra vSan Lazaro). Number of specimens studied, 20. Types in the collection California Academy of Sciences; co-sexi- types in my own. Typc-localitij. — Sierra San Lazaro. Lower California. REVISION OF ELEODIINI — bLAISDELL. 81 Salient type-characters. — (llabrous aiul sliining; elytra obsolctely subsiilcate. Pronotum widest at the middle; disc scarcely more arcu- :itoly doclivcMis laterally than on the dorsum, distinctly declivoiis at the apical angles, obsoletcly and sparsely punctulatc; apical anjj^les subacute with a tendency («> !»(• feebly itroniinent antei'iorly. Elytra usnally widest behind the middle; disc striato-jMinctate, punctures more or less eroded, stria' somewljat imprcs.-ed. intervals ap[)arently somewhat feebly c(Mivex and obsoletely punctulate. Legs somewhat slender. Diar/nostic c/uirnctcrs. — The salient type characters are sufficient to differentiate peninsidaris from the other races of omhsa. It is very interestinjx to note that it is necessary to use care in recog- nizing it from the peninsular form of insuhir'/s. which occurs in the same region. In f'nsi/lt/rf's the pronotum is more fpiadrate and the apical angles are more prominent anteriorly, and the anterior femora are feebly armed in both sexes. The first joint of the anterior tarsi of the male is clothed with a brush of golden pubescence beneath — the latter often dark in old specimens. The genital characters are quite different and snbgenerically so in the two species. In the peninsular form the elytra are obsoletely striato-punctate as in omissa var. p^n(nf. WTSO I'.ull. iKJ— (K» (i 82 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Oblong-ovate to ovate, moderately elongate, shining, sometimes subasperulate at the sides of the elytra. « Head scarcely twice as wide as long, more or less broadly and feebly impressed laterally, frontal suture usually evident and more or less bisinuate; frons broadly flattened to feebly convex, coarsely punctate, punctures finer and sparser on vertex, more coarsely^ densely^ and somewhat confuent on the episto7Jia. Antennae mod- erate in length and comparatively stout, outer four joints very feebly compressed and not dilated, third joint subpqunl to the combined lengths of the next two, the fourth just noticeably longer than the (ifth, the latter, sixth, seventh, and eighth subequal in length, the eighth subtriangular, ninth and tenth suborbicular, eleventh short ovate. Pronotum more or less subquadrate, usually widest before the middle, occasionally at the middle, from one-sixth to one-third Avider than long; disc evenly and moderately convex, arcuately declivous laterally, rather coarsely, almost evenly and rather thickly punctate, punctures generally denser at the sides where it is also more or less rugulose on the declivity; apex subtruncate to very feebl}' emargi- nate, finely and more or less obsoletely beaded; sides rather strongly arcuate anteriorly, thence straight and obliquely converging to the base as viewed vertically from above, more broadly and evenly arcu- ate in anterior three-fourths, thence more or less feebly sinuate to base as viewed obliquely from the side, finely beaded; base subtrun- cate to feebly rounded, finely margined, one-fifth to one-third wider than the apex; apical angles obtuse and slightly rounded; basal angles obtuse. Propleura' usually glabrous, sparsely punctulate, and more or less irregularly rugulose. Elytra oblong-oval to oval, frequently strongly inflated, widest at the middle; hase truncate to feebly emarginate; humeri obtuse, at times slightly prominent, narroAvly rounded; sides evenly arcuate, apex obtusely rounded; disc moderately convex on the dorsum, strongly and quite evenly rounded laterally, inflexed sides broadly and feebly concave before the apex, dorsum arcuately declivous posteriorly, strongly, quite evenly and difl'usely punctate to striato- punctate, the punctures generally simple but slightly asperate lat- erally and on apex. Epiploird' moderate in width, gradually narrowing from base to apex, very feebly and broadly sinuate beneath the humeral region; surface finely and sparselj^ punctate. Sterna quite strongly and densely punctate, rugose. Parapleura' strongly and densely punctate. Abdomen glabrous and shining, rather thickly punctate and rugulose. RFA'FSION OF KLKODHNI HI.AISDKT.L. 83 Z,t'_v.v moderate, strongly piincfiitc, unlcrioi- fciiKtra iimtic; iiiitcridr tibial spurs dissimilar; first joint of llic iiiilciior l:ii-si sli^r|it|y tliick- t'lU'd at tip bonoatli. Mall. — ()l)lon^''-o\ atr, coiiiparat i\('l y narrow, >oin('tinios subcylin- dri<'al. Antenna' ifarhin^f to the base of the piotliorax. Elytra rather narrowly oblong-o\al. t and broad, at least twice as lon<^ as the posterior, sides arcuate and parallel, narrowed in about apical fourth and sub- acute. Anterior tarsi with a small transverse tuft of ordinary spi- nules on the thickened tip of the first joint l)eneath. Measurements. — Males: Len<::th, 16.5-21 mm.; width. i\-~iS) nun. Femalex: Length, 17.5-24 mm.; width. S-12 nnn. Genital characters, male. — Edeagoi)Iiore (Plate 2, fig. 8) fusiform to flattened oblong-ovate, rather stout and arched. Basalc oblong; surface rather strongly convex, sides more or les.s arcuate. Apieale triangular, slightly elongate; surface somewhat strongly and evenly convex, with a median membranous groove in apical half; sides feebly arcuate in basal half, thence broadly and feeldy sinuate to apex, the latter .somewhat narrow and acute; base with a small rounded lobe at middle and broadly sinuate laterally. StcDiite (Plate 2, fig. 5) transverse. Each lobe slightly (piadrate, with the external border quite straight in basal half, thence broadly arcuate to apex, angle narrowly roundetl; internal border (juite straight; surface moderately convex, sparsely and strongly })unctate, setose, seta' moderate, longer and denser in a})ical area. Membrane >par.sely setose at bottom of the sinus, the latter bioad. Ftnia/e. — (ienital segment (Plate 2. fig. (i) (piadrate. not deflexed apically and setose. Vah'uhi. — Doisal plate oblong, slightly narrowing toward apex, explanate externally and at apex; surface lu'aily plane, impunctate in ba>al half, elsewhere sparsely punctate and seto.se, seta^ rather >hori and reclining; external border nearly straight, converging 84 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. apically; apical border strongly arcuate on the external lobe, the latter occupying the entire apical margin, with a^mall sinuation sep- arating it from the minute internal lobe; internal border nearly straight, at times more or less sinuous. Apical margin clothed with rather long flying soft setae. Ap])€rid(i(/c not visible beyond the margins of the fossa, short mammilliform. Basal prominences not evident. Svperior p^idendal membrane longitudinally rugulose. and reach- ing to opjiosite the internal apical lobe. Ventrolateral surface (Plate 2, fig. 7) moderately convex basally and feebly concave before the apex, punctuate and setose. seta» rather short, long about the fossa; submarginal groove moderate beneath the somewhat explanate external border of the dorsal plate, curving inward beneath the external apical lobe to the fossa. Internal mar- gins of the valves contiguous in basal eighth; fissure rather broadly fusiform, closed in the basal half by the inferior pudendal membrane. Varlatiotts in genital character^. — In the most ventricose specimen that I examined the entire apical border was taken up h\ the exter- nal lobe; the internal lobe was not evident from above; the dorsal plate Avas narrower than usual. The genital segment viewed ven- trally showed the inferior border of the valvular membrane as form- ing the internal wall of the fossa, and that the internal lobe was therefore small and ventral. Appendage slightly compressed. In a s])ecimen exhibiting nuirked variation. I found the setae shorter, and the external lobe of the apex more membranous; the sides of the dorsal plate were (|uite straight and parallel : the internal lobe was ventral as above, and the inferior pudendal membrane was longer than usual. Ilahitaf. — California (about the Bay of San Francisco, Esch- scholtz; Mount Diablo, Thomas Casey; Monte Bello, near Mountain View, Santa Clara County, Edward Ehrhorn ; San Emigdio Canyon, Kern County. Fordyce Grinnell). Number of specimens studied, 500. Type, location unknown to me. Type-locality. — Foothills near San Francisco. Salient type-characters. — Thorax punctulate, subquadrate, broadest anteriorly ; elytra punctato-striate. Body of the male subcylindrical, of the female obovate (Eschscholtz). Diagnostic characters. — The strongly developed anterior spurs of the anterior tibia' (females) characteristic of the present section, sejiarate (pKtdr'icollis from all the members of the C///'.s must always he taken j:i(iil Nutices. V, p. .V.tT. Aim:ils N. V. .Vcntl. S«i., I »<■«•.. ivt:;. 86 BULLETIX 63, T'XTTEn STATES NATIONAL MUSErM. The student will at times find it very difficult to decide Avliether a given specimen (especially males) shall be referred to quadricollis or omissa. In my experience the epistoma in quadriroUis is always more coarsely punctate than in omissa. Specific differentiation is no more difficult in this instance than is met with in other sections of the genus Elcodes. The extreme forms or heterotypes of carhonaria and obsoleta are as difficult of separation as are the above, in fact, all the constituents of the present section of the subgenus Melaneleodes might be consid- ered as races and forms of a single species if viewed from a broad evolutionary standpoint. The mentum is usually triangulo-trapezoidal, strongly punctate and foveate laterally within the more or less strongly defined margins ; the surface is longitudinally ridged at the middle. The prosternum is more or less strongly protuberant ventrally with the coxae, and more or less longitudinally convex between the same, usually grooved at the middle and rather distinctly margined around the acetabula; frequently submucronately produced behind and at times nearly vertically subtruncate. The mesosternum more or less concave and arcuately declivous. The intercoxal process of the abdomen is quadrate (male) to feebly transverse (female) and about a third of its width wider than the metasternal salient. The metasternuni laterally between the coxse is as long as the width of a mesofemur at the base. The post-coxal portion of the abdomen is equal in length to that of the process, and also to that of the third segment. In the male the second segment is about equal to the width of the process, and the third is a half longer than the fourth. In the female the second is twice as long as the fourth segment. The profemora are usually moderately clavate in the male and less so in the female. The grooves are limited by rather strong margins, which are more or less asperulate and converge near the base. The meso- and metafemora have their superior and inferior sur- faces quite i)arallel. The margins of the grooves are not strongly marked, are finely muricate, and become evanescent before becoming contiguous. The tibia' are frequently more or less arcuate and without tarsal grooves; the articular cavities are closed. The tarsi are somewhat variable as regards to stoutness, fre- ([uently rather more slender in the female. The protarsi are usually slightly thicker in the male and apparently subequal in the sexes. The protarsi are about two-fifths of their length shorter than a mesotarsus. Joints two, three, and four are subequal in the male; RF.VISION (»!•' KI.F.onilNI HI.AISDEI.L. 87 the fourth a liltlr Miiallcr than llic precfdiu*; in the female; tlie lifth is (ll(lic(l. I.')!). Types (Cat. Nu. 1-J-J()-M aiv in tli«' U. S. National Mnsciiin colhT- tion ; cotyiM's in my own. 'I'lfl>i-l<)((iHty. — Fort (Irant. Arizona. Salknt Ujpe-vharactev8. — Intcf^uinents dull in luster. Epistoma somewhat coarsely punctate. j)unctures not crowded nor continent. Antenna' in the male reachin*; heyontl, and in the female to the pro- thoracie base. Thorax in both se.xes widest at about the middle and not more stronstli' ilt(trti(tli(»it. Miholilnii^' oval: sidrs IVcldy arciiale; >iirface evenly coiivox. Ap}nul)(|ii;i(lrate (male) or sli<;litly li'iiiisverse (female) aii'l alioiit oiie-foiiitli of its width wider than the metasteriial salient. The metasternum laterally l)etween the coxae is a> l()ne<;ment i.-^ equal in length to the process, and the latter to that of the third segment. In the sexes the st'cond segment is twice as long as the fourth. The profemora are more or less distinctly clavate; the grooves are moderately hroad and the margins siihcariniform. more or less asperu- late. becoming contiguous and evanescent at l>asal third. The meso femora are scarcely or very feebly clavate. grooves <|uite plane, margins feeble and asperulate, evanescent at middle before becoming contiguous. The metafemora are not at ail wiilened externally and the superior and inferior surface lines are quite parallel : grooves as on the meso- femora. The tibiie may l)e more or less feebly arcuate, tarsal grooves absent, articnlar cavities closed. The pro- and mesotibia^ are somewhat inwardly produced at apex. The protibia' are sometimes quite distinctly carinate externally in basal half, noticealily so in the largest female before me. Tarsi variable in stoutness. The protarsi are about one-half (male) or one-fourth (female) of their length shorter than a mesotarsus. Joints two, three, and four subequal in size, and together a little longer than the fifth: the first slightly shorter than the third and fourth taken together. The mesotarsi are about a ninth (male) or a fifth (female) of their length shorter than a metatarsus. Joints two. three, and four feebly decreasing in length in the order named; the fifth subequal to the combined lengths of the second and third, the first to the third and fourth. , A metatarsus is about a half (male) or a third (female) of its length shorter than its metatibia. rloints two and three are subequal. and together about equal to the fourth, which is subeqnal to the first. ELEODES HUMERALIS LeConte. Elcodra hiiinrriilis LeCoxtk. Kojtorts of Ex|»l(>r. and Surveys . . . 4Tth and 41>th rarallel. XII. ApinMidix Nn.^1. is.".?, p. ."»(): Vvin: Acad. Nat. Sci. Phila.. 1S58. p. 182.— Horn. Trans. Anier. IMiil. S.w.. XIV. IsTo, p. 3(X».— Champion, Hlol. (Vntr.-Anior.. IV. Pt. 1. 1S.S4. i>. so. Oblong-ovate to ovate, elongate. niur«' or less opa<|ue: elytra densely, rather finely and nniricately. or granulato-juuricately punc- tate. 96 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Head rather less than twice as wide as long, frequently feebly and rather broadly impressed laterally, frontal sutiirg obsolete or feebly evident and scarcely sinuate: frons feebly convex, usually more or less flattened, densely and finely, sometimes a little coarser and more or less confluently punctate, punctures fine on the vertex increasing in coarseness to the epistoma. Antenna' long and somewhat slender, feebly compressed and scarcely dilated in the outer four joints, third joint as long as the next two taken together, fourth slightly longer than the fifth, the latter, sixth, and seventh subequal. eighth a little shorter and more or less subtriangidar, ninth and tenth sul>orbicular. eleventh short ovate. Pronotum subquadrate. widest at or just in front of the middle, about one-third wider than long; disc moderately and quite evenly convex, feebly and rather arcuately declivous laterally, rather finely and densely punctate, usually more or less narroAvly subgranulate along the sides; apex truncate or very feebly emarginate in circular arc, usually finely beaded; sides rather broadly and moderately arc- uate in the anterior two-thirds, thence to the base convergent and straight or feebly sinuate, marginal bead rather thin, finely reflexed and visible throughout its entire length from above; base truncate or feebly rounded, finely margined, and about one-sixth wider than the apex, about equal to the length: apical angles obtuse, scarcely rounded; basal angles obtuse, not rounded, almost rectangular at times. Propleunp quite densely punctato-rugulose. Elytra oval, not twice as long as wide, usually widest at the middle ; base truncate or more or less feebly emarginate. as wide as or slightly wider than the contiguous prothoracic base: humen obtuse or slightly prominent ; sides evenly arcuate, apex somewhat narrowly rounded ; disc more or less slightly depressed on the dorsum, some- times slightly ogival, arcuately declivous posteriorly, and quite strongly but not broadh' rounded laterally, very densely and rather finely muricately punctate or almost granulate, punctures mo^e simple centrally along the suture, the latter frequently impressed; surface at times is obsoletely striate, the inflexed sides are inwardly declivous and with the surface lines somewhat straight. Epipleura' somewhat narrow, gradually narrowing from base to apex, the superior margin is broadly and rather feebly sinuate be- neath the humeri : surface densely and subasperulately punctate. Sterna more or less shining and very densely punctato-rugulose. Parapleiircp densely punctate. Abdomen more or less shining, rather densely punctato-rugulose. The first segment is more strongly sculptured, and the fifth quite densely punctate. REVISION OF KLKODIINI BLAFSDKLL. 97 Lcqi* inodonitc in Icn^ftli. ((iiiiitaralivcly xdiicu hat sIcmkIci-. Foiiiora niiitic and not ihickciitMl ; anterior tibial spurs dissiniilai- in the sexes; anterior tarsi with the lii'>t joint sli ini|)ressed at middle on se;rnients oTie and two. .Vnterior spurs of the anterior tibi;e usually about three times lon<^er than the posterior. sli<^htly broadened anIINI -ULAISDKM,. 99 i(l)<)ii( tliicc . loii^M r lluiii the posterior. In this it ilillcis from all «»r I lie nthci- species of the siih^'iiiis. excejit ri/n/i. 'I'lic iiit('ternuni i-^ usually (|uit«' M'micircularly convex antero- posteriorly between the coxa>: sometimes feebly submiicronate or rarely vertically subtruncate lu'hind. The mesosternum is more or le>s feebly obli(|ue and concave. The intercoxal pi-ocess of the abdomen is slightly transverse in both sexes, and about one-third (male) or a sixth (female) of its width wider than the iueta>tenial salient. The metasterinnn laterally between the coxa^ is as long as the width of a metatibia at apex. The post-coxal portion of the hist abdominal segment is equal in length to that (»f the j)rocess, and in the femal«> to the length of the third se8, p. 181. — Horn, Tran.s. Anier. I'bil. Soc, XIV, 1870. p. .'ioT. Eleodrs iilmuiln Somer, Stndi Ent., 1848, ji. .300. Pimclia altcrudtn Kikbv, Fauna Boi'eali-Auier., IV, 1.8.3T, p. 2.32. Elcodcs rohiistd LkConte. I'roc. Acad. Xat. Sci. I'liil.. ISoS, p. 183. Oblong to oblong-oval, black, opaque, clothed with short setiform hairs, each arising from a puncture. Head moderate, feebly convex, rather finely, more or less densely and evenh' punctate, punctures more or less sparse on the vertex ; frontal suture usually defined, surface more or less broadly impressed across the fronto-epistomal junction. Antenna' moderately short, not reaching to th(» prothoracic l)ase, outer three joints very feebly com- pressed, scarcely dilated, third joint hardly as long as the next two REVISION OF F.LEoDIINI — BLAISDELL. 105 taken lt»^'t'tlici-. roiiith Ncry >liperati'ly punctate. Ahdomen somewhat shining, finely, submuricately. and rather sparsely punctulate, sometimes rugulose. Leys somewhat ^lender. Anterior femora nnitic; anterior tibial spui*s dissimilar in the sexes, the anterior spur curvi'd. larger, ami longer than the posterior. Anterior tarsi slightly dissimilar in the 106 BULLETIX 63, UNITED STATES NATIONAL MUSEUM. ibexes, first joint slightl}- tliickeucd and feebly produced at tip be- neath with a tuft of spinules interrupting the grc^ve. J/r/7c^— Oblong-oval, somewhat eh)ngate. Antenna^ reaching to the posterior fifth of the j^rothorax. P21ytra usually Avidest at the base and thence arcuately narrowing tq apex. Abdomen slightly oblique, moderately convex, distinctly impressed at base of the first segment and between the coxa*. Anterior spur of the anterior tibia about one- half to one-third longer than the posterior, gradually tapering from base to apex, and acute. First joint of each anterior tarsus with a small, subacute tuft of yellowish modified pubescence on the produced tip beneath; second joint slightly thickened at tip beneath with a, similar and rather inconspicuous tuft ; groove interrupted. Female. — Oblong, robust. Antenna^ reaching to the posterior fourth of the i^rothorax. Elytra broadly oval and usually widest at the middle, scarcely narrowed but more or less arcuately rounded jjos- teriorl}'. Abdomen horizontal and rather strongly convex. Anterior spur of the anterior tibia about twice as long as the posterior, curved, distinctly broadened, Avith sides quite parallel, somewhat narrowing at tip. First joint of an anterior tarsus Avith a tuft of ordinary pic- eous spinules on the thickened tip ; second joint unmodified. The present species is quite variable, and I deem it proper to indi- cate four incipient races, as follows: Forma typica. — Slightly elongate in form, pubescence usually pale flavate in color. Elytra distinctly flattened, normal costa^ well devel- oped, the intermediate completely obsolete or very feebly indicated, intervals broad and flat. Forma ovalis. — Oval, short and robust in form. Pubescence usually black. Elytra rather strongly convex, nornuil costoe well developed and somewhat glabrous and shining, intermediate costae more or less evident. Forma costata. — (ieneral form as in typica but smaller. P^lytral costa? more or less strongly and quite equally developed. Forma robusta. — Form broadly oblong, large. Elytra more or less convex, all of the costa^ more or less developed, rather coarsely muricate, at apex becoming subspiculiferous. Measurements. — Males: Length, 18-22.5 mm.; width, 6.5-10..") mm. Females: Length, 14-22.5 nnn. ; width, 7-11.5 mm. Genital characters., male. — Edeagophore flaxseed-shaped, slightly elongate and not arched. Basalc oblong, evenly convex and more or less gibbous in basal half; sides evenly arcuate. Ajneale triangular, slightly elongate, feebly arched; dorsal surface evenly convex, with a moderately wide median membranous groove in apical half; sides feebly arcuate or nearly straight ; apex subacute; base more or less broadlv ai-cnate. scarcely sinuate laterally. REVISION OF KLKODIINI- HI.AISDKIJ,. 107 Sfcrn/fr ti'iUi^Ncrx'ly pMi'iiliolic I^adi lolx' with tlit- oiilcr Ixjnlcr ('\(Mil\' ;ircii;i(<' ; iipcx more or less roiindcd ; iiitcnial hoith-r iiioi-c or less sli-;ii;i:ht : stirfjur feebly convex, sliiiiiii*^. sj)ar>ely lo rather densely piiiirtate. setose, seta* not dense and moderate in leiifrtli. Membrane -liirliil\ setose across the bottom of the siinis. the latter modenite in size. Female. — Genital segment <|uadrate, slightly longer tiian wide, with a slight antero-j)(>sterior convexity, setose. Valniht (Plate ;5, tig. -JO). — l)or>al plate oblong, varying more or less in width. Snrface glabrous and shining, plane to feebly concave. -])arsely piuictate in apical half and along the intei-nai moiety to base, s(>ta' rather short: sides snl)parallel : onter loin' of apex not ditl'erentiated from the ai)ical mai-gin of the plate, evenly ronnded, well developed, scarcely defined from the very small and hardly visible intei-nal lobe. The valvular a])ex obliquely and inwardly truncate, sometimes vei-y slightly sinuate at the inner third, apical area set with rather long and flying seta\ Apiunihuji small and conical, partly visible fi-om above, directed backward and more or less inward. Superior pudendal membrane long, reaching to the l)ase of the in- ternal lobe of the apex, and longitudinally rugulose. Vi'utroJdtcrdl siirfare more or less evenly and moderately convex, sparsely jiunctate and setose, seta' rather short; submarginal groove arcuately bending inward to the fossa, well defined beneath the explanate I'xternal l)()rder of the dorsal plate and external apical lobe, the latter set with quite long flying hairs. Internal margins of the valves contiguous in basal fifth, genital fissure broadly fusi- form, margins of the valves not closely approximated at apex. In- ferior pudendal membrane visible in basal half of the genital fissure. Ildhifiif. — Texas (Clifton. Bosque County, G. W. Belfrage: San Diego, E. A. Schwarz ; San Antonio, LI. Soltau ; Alice, E. A. Schwarz ; Mobeetee, October): New Mexico (Santa Fe Canyon, 7,000 feet, August. F. II. Snow: Albuquerque, February, collector. II. Soltau; Las Vegas, August, Barber ami Schwarz) ; Oklahoma (South Mc- Alester, June, H. F. Wickham) ; Kansas (Topeka, Hubbard and Schwarz: Kiley County. May and September. Poi)enoe: Finney County, September, II. AV. Menke, collection of Kalph Hopping; Onaga) ; Colorado (Colorado Springs, June and April, II. Soltau; Glenwood Springs, June, Hubbard and Schwarz; Denver, II. Soltau; Gulnare, Las Animas County, collection of California Academy of Sciences; La Junta. Golden, Poudre Canyon, near Long's Peak. Estes Park. Lamar. Sterling, Holly. Fort Collins. La Veta, Veta Pass, Wickham's list); Iowa (Sioux City, April, II, Soltau); "Taken at Ames by Professor Osborn, while Professor Shimek has taken it in Lyon (\)imtv (June): eastern Emmet Countv (.Vugust); sotithern 108 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Dickinson County (August) and eastern Woodbury County (Sep- tember) ; it extends as far east ^s Independence,^uchanan County, September, on a broad, dry sand flat, along theWapsipinicon Bot- tom "^ (H. F. "Wickham, Iowa Acad, of Sci., 1899) : "Wyoming (Cheyenne, May; collectors. Hubbard and Schwarz) : Montana (Helena, May; Assiniboine, August; collectors. Hubbard and Sch\Yarz) ; Southern Dakota (Sioux Falls, May, H. Soltau) ; British America (Medicine Hat, September, C. V. Riley). Number of specimens studied. 110. Type destroyed. Type-locality gi%en by Say, Missouri and Arkansas. Salient type-characters. — Body oblong-oval, with numerous minute prostrate hairs. Thorax transversely subquadrate, anterior edge concave ; basal edge rectilinear, covering the base of the elytra ; lateral edge arcuate; anterior angles rounded: posterior angles excurved. Elytra scabrous, with three elevated lines, a common sutural. and a lateral one on the edge, intermediate spaces broad, flat, not concave, and sometimes with the appearance of a slightly elevated longitudinal line alternating with the others (Saj"). Diagnostic characters. — A distinct species, dull in color, sparsely jiubescent, and with more or less costate elytra. In the typical form there is a humeral, a subhumeral, sutural. and two discal costa^, the intervening costae obsolete or very feebly indi- cated, with the intervening spaces flat and wide. In the costate form all of the costiv are developed and of about equal prominence; the individuals are usually under the average size and decidedly oblong in form ; males more frequently observed. The individuals of the oval form are more or less oval and rather convex, the costse are normal, strong, and frequently glabrous, the pubescence ma}^ be blackish or of the nornuil fulvous color. The robust form is a larger, stouter, and decidedly more coarsely sculptured variety. Laterally and at apex the murications are quite spiculiform. The mentum is comparativelj' small, triangular to trapezoido- triangular in general outline; surface feebly convex, more or less slightly impressed along the sides at times, rather finely punctate, each puncture with a .short seta. Presternum comparatively broad between the cox;e. usually convex antero-posteriorly and more or less arcuate or vertical behind, rarely subtruncate or subnuicronate. The mesosternum is usually arcuately vertical and more or less moderately concave, sometimes feebly so. The intercoxal process of the first abdominal segment is quadrate and equal in length to the post-coxal part of the same segment : it is also equal to the second in length: the third segment is one-half REVTRTON OF ELEOnilNT BLAISDELL. 109 lon^rer lliiiii tlu- I'oiirlli, llu- lallcr sli^rlitly iiioit- tlian <»iH'-lialf lon^riT Ihaii the second (male) ; in the female the second is slightly lon.S, p. 1S3. Elcidrs iixiirnita LkCoxtk, Proc. Aciul. Nat. Sc-i. I'liila., 1S."i.S. p. IXi. Oblong to somewhat broadly oval. i)lack, elytra frequently more ( joint of (he nntciioi- tarsi slightly |)i-()out as long as wide. Kacli 1oIk» with the external margin more or less evenly arcuate, -oinetiiui's scarcely sui)angulate at middle; apex subacute to nar- rowly rounded: internal margin more or less arcuate; surface feebly convex, shining and glabrous. o\i' speiii's, aUlioujrh well devclopt'd females have the second abilominal segment lon«^er and almost twice as long as the fourth. The femoral and tibial ciiaracters are (juite similar to those ob- served in tncoatatu. The tarsi are comparatively long and a little stouter than in the last-named species, and the narrowing of the joints from the lirst to the fourth or third is less evident. In the fenuile of the typical form the protarsi are about two-thirds of their length shorter than a mesotarsus. Joints two to four are sub- ecpial in length and width; the lifth is a little longer than the third and fourth taken together, while the first in distinctly shorter. The mesotarsi are one-fifth of their length shorter than a meta- tarsus. The total length of the first joint is about e(iual to the com- bined lengths of the second, third, and fourth ; the fifth is scarcely as long as the .second and third taken together. The metatarsi are about two-thirds as long as a metatibia. The first joint is distinctly longer than the second and third taken to- gether, while the fourth is distinctly shorter. ELEODES PEDINOIDES var. NEOMEXICANA, new. Closely related to pedinoides, from which it ditfers as follows: Surface dull, subopa(jue. Pronotutii evenly and moderately convex, basal impressions obso- lete; base broadly and not strongly emarginate at middle. Elytra with the disk feebly depressed, moderately convex from side to side, laterally somewhat more broadly rounded than in pediiioides, intlexed portions less sharply defined from the dor.sum and slightly convex; base emarginate laterally; humeri not carinate; surface obsoletely sulcato-striate, irregularly and rather densely, finely, sub- granulato-muricately punctate, the sculpturing becoming feebly asperate about apex. Epiph tirw with the superior margin rather more .strongly sinuate beneath the humeri; surface rather densely and muricately punc- tate. Legs rather less robust. Measurements. — Eemalen: Length, '!?> mm.; width. 11 nun. Genital rhararters. — As in ped'moideK. except that the «lorsal plates of the genital segment in the fennde are comparatively narrower and 59780— Bull. G3— OS) 8 114 BULLETIN (ili, UNITED STATES NATIONAL MUSEUM. the superior pudendal membrane slightly shorter, not quite reach- ing the base of the internal apical lobe. Ildbitdt. — New Mexico (Cloudcroft, August, elevation 9,000 feet, W. Knaus). Number of specimens studied, 5. Monotype a female in nij' own collection. Type -locality. — Cloudcroft, New Mexico ; collector, Warren Knaus. Calient type-characters. — Luster subopacjuo. Pronotal disk with- out basal impressions; elytral sculpturing subgranulato-muricate and not sulcato-striate. Diagnostic characters. — Easily recognized by the salient type char- acters. Difl'ers from tricostata by the more convex elytra without any evi- dence of costae. Neomexicana is a distinct and in all probability an extreme varia- tion of pedinoides and in no way related to any other known species. The asperate form of pedinoides is evidently a connecting link be- tween tricostata and the last-named species. For some tin)e I was undecided as to the propriety of considering it a race of tricostata, but finally decided that it had greater affinity with pedinoides. As a race of tricostata it would be analogous to neomexicawi. Its form is variable, sometimes that of tlie one and again that of the other species; the sculpturing most usually is that of pedinoides, while the sparsely placed flavate pubescence is that of tricostata. In all prol)ability a large series would corroborate the opinion already expressed — that it is a connective form. In neomexicana the prosternuni is as in pedinoides. although usu- ally more or less vertically subtruncate behind, rarely feebly submu- cronate. Other sternal, abdominal, and crural characters are as in pedinoides. The tarsi are less elongate than in pedinoides and about as stout, and tlie narrowing of the joints from the first to the fourth is only distinctly evident in the protarsi ; the meso- and metatarsi have their respective joijits mutually subequal in width. In the female the protarsi are about one-half of their length shorter than a mesotarsus. The mesotarsi are one-ninth of their length shorter than a meta- tarsus, and a metatarsus about one-half of its length shorter than its metatibia. Otherwise as in />< dinoides. Subgenus LITHELEODES. new. Species under moderate size and ovate in form, the elj^tral sculptur- ing varying from smooth to tuberculate. The prothorax is usually subquadrate ; the anterior femora of the males are more or less dentate in part of the species; first joint of HKVISION OK KLKolMlM HLAlSliKM.. 115 tilt' Miitt'iior \M>\ ill tlif MiaK- may lu-ar a iiiiiiiitc tiiit (if iiiihoscence at tij) IxMicalli; ill the female (he (ii-sl joint is more or less thiekonod and .sli. Dorsal plate of each \al\e oval- ol)]on; an angle, or more «j:ra(bKdly and ai'cuately so. Apex small and membranous. A j)pc)i(l(i:e. more or less semi-elliptical, sonu'times subconical, flattened, with external border fretpiently continuinunc'tures. whioh are feel)ly muricate laterally and on the apex; anterior femora armed in the male; thorax finely punctate. Elytra not sulcate crtricata. Elytra sulcate var. arizonetiHis. Elytra more or less distinctly tuberculate granitlata. Elytra muricatelj- punctate: Elytra pubescent Ictcheri. Elyti'a not pubescent var. vandykei. ELEODES ARCUATA Casey. Eleodes arcuata Casey, Uontr. to tlH> Descr. and Syst. Col. of N. A., Pt. 1, 1884, p. 47 : Annals N. Y. Acad. Sci., V, Nov., 1890, p. 395. Oblong-ovate to ovate, robust ; shining, glabrous, intense black, and very finely sculiDtured. Head tAvice as wide as long, broadly and evenly convex, frequently slightly impressed laterally and along the frontal suture, the latter more or less evident and bisinuate; finely and irregularly punctate, punctures A'ery sparse on the vertex, becoming coarser and slightl}' denser laterally and on the epistoma, or dense throughout. Antenna moderate, reaching to the prothoracic base, subequal in length in the sexes, outer four joints scarcely compressed or dilated, third joint equal to the next two combined, fourth to the seventh inclusive sub- equal, eighth slightly shorter and about as wide as long, ninth and tenth suborbicidar, eleventh ovate. Pronotum subquadrate, widest at or just in advance of the middle, one-eighth to one-fifth wider than long; disc moderately convex on the dorsum, more strongly so and arcuately declivous lateralh', very sparsely and more or less minutely pinictulate; apex broadly emar- ginate, and quite obsoletely margined; sides rather strongly and nearly evenly arcuate, most strongly so just in advance of the middle, very feebly and minutely sinuate just in advance of the posterior angles, frequently most strongly arcuate at the middle and very feebly and more broadly, but briefly sinuate behind, marginal bead fine ; hase evenly roimded, equal to the length, one-third to one-fourth wider than the apex, very finely or obsoletely margined ; apical angles acute, basal obtuse, but not at all rounded. Pro pleura' more or less sparsely punctulate and irregularly, more or less strongly rugulose. Elytra oval, widest at the nii(lnger than wide; hose slightly and evenly emarginate, adapted to the prothoracic REVISION OF ELEODIINT — BLAISDELL, 117 base, to wliicli il is (>(|iial in width: Innin ri ohdiso, aiifrlc distinct or sli^dilly i(>niid(M| : .s/VA \ cxcniy and inorr (»r lo-. st lon^rly aiciiatc. apex obtusely rounded; disc moderately convex, sometimes >li;j:litly de- ])ressed on the (h)i-sinn, (|uite excnly and sti"(»n<::ly rounded at the sides, stron<2:ly, arcuately. and moie or less vertically declivous Ix;- hind ; punctate, i)unctures small and an'an;x<'l (•>(>'< f somewhat wide, sc-arcely dilated beneath the humeii, thi'nc(> irradually narrowinir to ajiex, sujx'rior mai-n'(( rather coarsely punctate. Ahdonun shining, sparsely and <|uite regularly punctate, at times more or less rugnlose; sculpturing coarser at middle of the first seg- ment, i)unctures denser and coarser on the fifth segment. Lcg.s moderate in length and stoutness, anterior femora feebly sinuate and mutic in the sexes; anterior tibial spurs slightly dis- similar in the sexes as well as the anterior tarsi. Male. — Modei'ately narrow, oblong ovate. Elytra somewhat rounded behind, arcuately and almost vertically declivous posteriorly. Abdo- men modi'rately oblicpie. moderately convex, broadly and rather slightly impressed on the first segment. Anterior tibiie with the anterior spur slightly longer and a little stouter than the posterior; anterior tarsi with the first joint rather simple at tip beneath, the ma rgi no-apical tufts of sjiinules not conspicuous, groove somewhat entire. F(mi((t/( triangular: suiface modei-ately convex, more or less de- pressi'd on the dorsum, with a moderately narrow median groove at middle third; sides arcuate in basal thinl, thence broadly and moder- 118 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. ately sinuate to tip; apex feebly attenuate and subacute; base with a rounded lobe at middle third, feebly and broadly sinuate laterally. Sternite quadrate-parabolic, each lobe with the outer border straight and more or less obliquely truncate apically, angle nar- rowly rounded ; internal border straight ; surface feebly convex, sparsely punctate and setose, setai moderately long about apex and not dense. Female. — Genital segment subequilalerally triangulo-parabolic, rather short and setose. FaZi'uZrt (Plate 4, fig. 25). — Dorsal plate oval-oblong, distinctly con- cave; surface glabous and shining, sparsely punctate, each puncture with a long seta, internal moietj' in apical half impunctate and more or less reflexed. outwardly also somewhat reflexed; external border evenly arcuate, angle broadly rounded: apical margin oblique pass- ing onto the apex, the latter triangular, acute and rather slender; angle and apex clothed with quite long flying hairs; internal border arcuate apically. sinuate toward base. Appendage conical to depresso-conical. moderate in size with a tuft of rather long hairs. Fossa transverse. Basal prominences not evident. SupeHor pudendal membrane scarcely to feebly and distantly longi- tudinally rugulose. reaching to about the middle of the dorsal plate, opaque; valvular membrane closing the intervalvular cleft apically. Ventrolateral surface. — Body moderately convex at base and more or less transversely concave liefoi-e the apex: submargiiutl groove fine. Margins of the fossa not fringed with hairs. Apex appears sub- laminate with the internal angle of the fossa. Internal nuirgins of the valves contiguous, genital fissure very nar- row and closed. Inferior pudendal membrane not visible. Ilahitat. — Arizona (Casey; H. K. Morrison: Chiricahua Moun- tains, July. Fort Grant. July. Santa Eita Mountains. May. all in the collection of Hubbard and Schwarz; Santa Rita Mountains, 5,000- 8,000 feet, June, F. H. Snow). Number of specimens studied. 24. Type is in the collection of Col. Thomas Casey. Type-locality. — Arizona. Salient type-characters. — Form, robust; shining and glabrous, very finely sculptured. Interocular surface broadly and evenly convex; between the eyes the punctures are very fine and irrejrularly scattered, gradually increasing in size and density anteriorly; on the epistoma they are very close and much larger. Prothora.v with base one-fourth longer than the apex: sides strongly and nearly evenly arcuate, most strongly so just in advance of the REVISION OP KLEOnilN'I — RLAISKr.I.I,. 119 luiililU', very feebly .ind iiiiiiiitcly .-iiiualc just in advance of tlie posterior angles; apex broadly eniarjjinate. base very broadly and feebly arcuate; anterior an«;N's acute, |)osterior obtuse, but not at all rounded; disk moderately convex, minutely , p. HO!).— Casky, Contr. to the iH'scr. and System. Col. of N. AnnT., Vt. 1, 1HS4, p. 4S. Elfodctt rof/iKitft IIai.dkman. Stanslinry's Explor. and Survey, Great Salt Lake. I'lali, .\ppeMdix C, p. .'iTti. — Casky, Annals N. Y. Acad. Scl., V, Nov., IS'.X), I*. .3!)5. Fiisifonii-ovate (o ovato, about twice as long as wide, smooth, shin- iii-.') iiiiii. Forma cognata typica. — Larger, iiiore rolnist. snKxtthcr. Klytial piinctnro.s fine and loss scabrous. Surface shinin^r to didl. Measiireinents. — Males: Len<;lh. I.VIT nun.; width. ">-(). .") nun. Females: Len..VS mm. Forma cognata punctata. — Pronotal punctures coarse: elytra densely am! coarsely punctate, otherwise as in the typical wide as long, more or less convex. impress<»d later- ally and along the frontal suture, the latter distinct; surface tinely. 126 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. sparsely and irregularly punctate, punctures larger and denser on the epistoma. Antenmi' rather long, outer three joints feebly com- j)ressed, scarcely dilated, third joint scarcely as long as the next two taken together, fourth slightly longer than the fifth, the latter, sixth, seventh, and eighth sur)equal in length, seventh and eighth as wide as long, ninth and tenth rather transversely oval, eleventh subovate. Pronotum widest at or slightly in advance of the middle, about a third wider than long, length equal to width of apex; /^//-sr- glabrous, finely and rather sparselj' punctulate, evenly and moderately couA'ex from side to side, rather declivous at the apical angles; apex feebly emarginate to subtruncate in circular arc. finely and more or less obsoletely margined; sides feebly to moderately arcuate, slightly narrowing anteriorly to apex, rather straight and convergent poste- riorly to base, very finely beaded : h(tse slightly arcuate and finely margined, about one-sixth wider than the apex; apical angles dis- tinct, slightly prominent and not rounded; basal angles obtuse scarcely rounded. Propleuvd' usually obsoletely punctulate, (juite smooth and dis- tinctly rugulose. Elytra oval, widest at the middle, usually less than twice as long as wide; hose feebl}^ emarginate, scarcely wider than the contiguous prothoracic base; humeri more or less acute and rather prominent anteriorly; sides evenly arcuate, apex obtuse and rather narrowly rounded ; disc evenly and moderately convex, feebh* depressed, strongly and evenly rounded laterally to the epipleura^, rather evenly and arcuately declivous jiosteriorly ; surface sulcate, the sulci broad biseriately, uniseriately, or irregularly punctate, punctures rather coarse, intervals distinctly convex, rather narrow, very sparsely or more thickly punctulate; inflexed sides obsoletely sulcate and more irregidarly punctate. Epipleurf^ obsoletely punctate, glabrous, and moderately narrow. Sterna obsoletel}' punctate and irregularly rugose, more or less shining. Parapleurn' subopaque and rather densely jiunctate. Abdomen horizontal; rather glabrous, sparsely, minutely punctate and rugidose, more coarsely so on the first ventral segment between the coxa?. Legs quite slender and moderate in length. Anterior tibial spurs unequal, both acute: anterior tarsi slightly dissimilar in the sexes. Male. — Body slightly elongated and slender. Antennfc reaching slightly beyond the base of the prothorax. Abdomen very moderately convex, intercoxal process slightly flattened ; anterior femora armed with an obtuse tooth ; first joint of the anterior tarsi clothed on the slightly produced tip beneath, with a minute tuft of more or less golden pubescence. RKVISION <»K KLKOIUI.NI lil.AISItKLL. 127 Fcnnilf. — Kallici" r()l>ii>(. iiiiti'iiiiif rcMchiiiL'' t(i the l)ii-f of |)r<»t lioiiix. Alxloiiu'ii str()iii witli jri-oove cntiiv, without the tuft of apical spimilcs. mar«;inal spinules rather stout. Mcd.si/rc/ncfifs. — Mule: T^cnjrtli, l-> mm.: width. .').s mm. FniKih : Length, 14 mm.; wiiltli, 0..") nun. Genital i hdracters a.s in cxfrirafu, except that the genital .segment of the female is siilxpiadi-ate. ' lldbiti't. — Arizona (Fort Ilnachnca). Niimher of specimens studied. <>. Sexit\pes: Male in II. ('. Fall's eollectioM: f<'male in that «)f my own. T inu-hualit\i. — Fort 1 luachuca. Arizona. J)iaendix, No. 1. IS.".!, p. ."»0. feni;ile. — Horn. Tran.>i. Anier. I'liil. Soc.. XIV. ISTo. p. ;;(«». Elcodrs obtiisa LkContk, I*rf»c. Acad. Nat. Sci. I'liila.. iscii. j). :',:t-2. male. EhodcK aspcra LeContk, Sniithson. Mi.scell. Coll.. .No. KIT. isri."», p. lir>. (?) ElrtxlcK liuhaHpvra Solier. Studi Entoniol.. II. IMs. p. 24(». Elongate ovate, more or less opaque, elytra tuherculate. Haul x-arcely twice as wide as long, feebly convex and more f)r less flattened, hroadly and very feebly impressed laterally, rather coarsely, irregular, and nun. Females: Length, 16-17.5 mm.: width. 7.*2-T nun. Oenittd characters., Male. — Edeagophoie rather elongate, pointed oval, not arched. Bascde oblong, moderately convex, sides parallel. RKVISION OF KM'.dliFIN'I — ^BI.AISDKLL. 129 Apifoh lri;iii;j:iil:n'. sli. anKHils |K>stilanchard and l)ronounced by ]iim to be tliat form. LeConte's description is as follows : E. ohiKsii. — lOloii.uala, iiijira capite (horacequo confcrtim pimctatis, lioc ovato, latitudinc pauIo I)r(>viore, lateribus rotundatis. postico obliquis, anjrulis posticis obtusis, spatio i)arvo \ve\i utriuquo ad medium notato, elytris postice oblique atteuuatis valde di'clivibus, l)asi truucatis liumoris obtusis. j^ramdis i)unctis<]ue intermixtis vix seriatiui positis; femoribus auticis subtus obtuse aujjulatis. Long. .GO. He also Avrites that the elvtra are punctured tOM-ard the suture, but behind and at the sides the punctures are replaced by oval elevations of moderate size, which are arranged in rows, though not very dis- tinctly, and the humeral angles are not jiroduced. The examples from Siskiyou County, California, do not answer to the above description.s. Mr. Blanchard has compared them with the type and writes as follows: "' Xot like the type of (iranuhita, a male from Oregon, which is less rough; and ohtusa (male from Cali- fornia) has a more convex prothorax than {/ranulata, more rounded on the sides, and more coarsely and densely punctate, being in these particulars more like your Siskiyou specimen. In (/rattiihitd the disc of the elytra is irregidarly punctate and rugose ; m ohtusa vciOver\\go9.& and less evidently punctate." Tn another letter he writes that " Your Siskiyou example is perhaps more nearly dspcra.'''' If aspera is a synonym of cframilata it will be suri)iising as found in New Mexico. I shall again give a description of LeConte's in full : E. aapcm. — Nigra, capite tlioraceque oi)acis. fovtitcr sat dense puuctatis. hoc latitudiue paulo breviore. ol)ovato modicc coiivcxo. aiiico subemargiuato, basi paulo siuuata aplca liaud augustioro, lateribus teuuiter marginatis rotundatis, postice sul)sinua1is, angulis posticis obtusis liaud rotundatis; elytris ovalibus, tliorare duplo latioribus l)asi t-uiargiuatis Innueris subacutis. apioe valde de- clivil)us objicpic attonualis, dorso deplanafis. lateribus subito inflexis, nndiqne granulis redinatis nitidis brcv iter pilifcris dense subscri.itim jxisitis. et parco transversim rugosis; antennis capite tlioraceque vix brevioribus, extrorsum paulo incrassatis; femoribus auticis muticis, Loug. .GO. HKVISION OK KLKODIINI lU.A ISDKM,. 131 After a (ai'cfiii rex icw (tf tin- litciat lire aiitl a -tiidy of (lie x'l-ics of examples hcforc me. I can coiiic In only one conclusion, and that is that there are four inci|)ient races involved and to he recoirni/ed. The following f(Hins may thei'«'fore he indicated: Forma typica. — Thorax siihmall llatMuhercles, with inler\'eiiin«; muricate piinctiii'es. Forma obtusa. — Thoiax o\ate. sides rounded, ohrupie posteriorly, hasal an ohtuse: disc with smooth spaces each side of the middle. Klytra with the humeri ohtuse. di>c j)unctate ai)out the ^ulure. later- ally and ahout ai)e.x with oval ele\ations (d" niodei'ate si/,e. which ar" not very distinctly seriate. My specimens are opa<|ue and the pi'onolal punctures are >niallei' than those of the Siskiyou specimen^, and distinctly coarser than in the exami)les from New Mexico. Forma aspera. — Thorax stronirly and densely punctate, sides rounded and suhsinuate behind, basal aiifjles obtuse and not rounded. Eytra with the humeri subacute, dorsum somewhat flattenecl. sculp- tured with l)ri«rht reclinate granules which are briefly jjiliferous, the ♦rranules are densely and subseriately arranjjed, moderately trans- versely rufrose. Forma tuberculata. — Thorax as in a.sjH/(i. Klytra with the hu- meri subacute; disc sculptured with distinct tulw^rcles. which usually show a serial arraufrement. alternate series larjrer and not at all rugose. These Siskiyou specimens are iaiger and mori* elongate than ohtiisa, and usually of an intense black and feebly shining. The pronotal ]>unctuation is like that of I pis rrranihoifhs. only that the punctures are distinctly separated and not coalescent. The elytral tuberculation is almost like that observed in f/ratwiid. The development of the tubercles shows considerable variation in the series before me. The interstitial series are the larger, and in the row the tubercles vary in size in different examples, in some sub- erpial in size and rounded, in another some larger and others smaller, rounded or oval. an, the nniricate condition predominates, each eminence is a prickle and the granular character obscured. The sculpturing is not at all coarse. Granom is recognized by its coarser sculpturing and much more coarsely and densely rugoso-punctate pronotum. The anterior femora are mutic and scarcely sinuate : forms of grcnndatd are more or less nniricate, f/rancmt less so, and besides the integuments are densei' and generally opaque, although Nevada examples are shining. Sober named a species ."oiba.spcra, and it is doubtful whether it is the present species or not; Dr. George Horn places it as a doubtful synonym of yrantdfifa, and writes that if it should prove identical the present mime must l)e su]:)pressed and Solier's name be reinstated. I have not been able to settle this point. The mentum is moderately large in the females of the tuberculate form, smaller in the male: rather small in ohtiisa. Usually subtri- angular, rarely subparabolic and more or less scabrously sculptured, scarcely convex, usually somewhat broadly and feebly excavated, and not noticeably setigerous. Lateral lobes small and inconspicuous. The prosternum is more or less convex between the coxa% feebly produced and more or less vertically truncate behind, angle some- times mucroid, that is with an angle having the shape of a miicro. In the type of ymitidata the prosternum is produced behind and slightly prominent posteriorly in ohtnsa. The mesosternum is more or less obliquely arcuate, broadly and more or less deeply concave. The metasternum laterally between the coxa' is as long as the width of a mesotibia at apical fifth. The abdominal process is quadrate (male) or slightly transverse (female) and e(iual in width to (male) or one-fourth of its width wider (female) than the metasternal salient. KKVISION i»K KI.KOKIINI ISI.AISDKhl,. 133 Till' k'li^th of llir process is about t'(|iial lo llial of tin- |)o>l-foxal part of the first segment; the second is twice us lonjr as the fourtli (male) or a little loiip-r (female), and ahoiit one-tliii'd (male) to one-half (female) longer than the thiid. The profemora aie moderately clavate. and in the tul>erciilatf foiin from Siskiyou County, distinctly dentate, the tooth is short and broad and almost subacute; in ohtiisa obtuse and less developed.^ The tibia' are without tarsal grooves. The mesotibia' are at times rather sti'ongly grooved and (he metatibia' are simply flattened externally. The tarsi arc \ariablc in stoutness and moderate in length. In obtum the tarsal foruuda is: I'lo. Meso. Meta. Metatibiu>. Male.— 2 3 3 5it Keiiiiile. -1 .'{ .T 5i ELEODES LETCHERI, new species. Elongate ovate, suboixique, elytra modei-ately convex and sparsely clotheil with (lying hairs. Head feebly convex, vaguely impressed laterally, somewhat finely, quite densely and rather e\enly punctate. Antcnitu moderately long, outer four joints very feebly comi)ressed and scarcely widened, third joint equal in length to the next two taken together, fourth slightly longer than the fifth, the latter, sixth and seventh sube<[ual, eighth triangular ancl about as wide as long, ninth and tenth transversely oval, eleventh oval to ovate. Protiotum widest at the middle and a little wider than long; disc moderately and evenly convex, finely, rather densely, and more or less irregularly punctate, the punctures at the sides frequently coalescing to form minute rugula*; <'.r feebly emarginate or truncate and very finely beaded; .sides evenly and not strongly arcuate in anterior two- thirds, thence nearly straight or scarcely sinuate to the base and finely l)eaded: hose feebly arcuate or ti'uncate. finely margined, and a little widei- than the apex; apical and basal angles obtuse, not prominent nor rounded. Pt'opJeuiuf finely and not densely nniricato-granulate, finely r)ig- ulo.se. EJytva oval, not twice as long as wide; base truncate or very feebly emarginate, and slightly wider than the contiguous prothoracic base; hutncvi subacut*' and not prominent ; .svV/r.s- evenly arcuate, apex obtuse and not j>roduce. the latter broad. |{K\1S1(»N (»!•■ I.I.K.ODIINI lll.AISHI'.I.I.. 135 FcinaU .' (Jciiilal ^c^Miiciil I n:iii;riil(> (|ii;i(lr;ilc. imIIici- ^lidit. sliiiiiiiir and sparsely setose. Vdlriilii ( IMnlc ;i, li^. r»).- -Dorsal plate >ul)()\;il to ol)loii;;. imier third rcflexed and outer two-tliirds ol)li(|iiely rellrxed ; surface chau- neled between the ohli<]iiely relle.\einu(l(i(/t' short and broad. stron«;ly flattened, somewhat semi- elliptical, eveidy and broadly rounded or more or less emarginate at tip, about ecjual in len«rth to the apex. Fossa transverse and narrow. Apex, ap|)enda,()0() feet, in .Vpril. Tln>v were taken from beneath stones on the level land about the town. Number of specimens studied, IT). Cotypes in my own and Dr. Vj. C. Van Dyke's collection. Type-local it If. — Verdi, Nevada. Salient ti//>e-characte/'s. — Thorax subqiuulrate, sides evenly arcuate anteriorly, thence nearly straight to base; disc rather densely and irregidarly punctured; angles obtuse, and not rounded. Elytra with the humeri small and subacute, scarcely prominent anteriorly; disc finely muricately jmnctured and spars<'ly clothed with flying hair>. Diaf/noxtic cliamcters. — Letcheri is uivique in having only the elytra set with moderately long hairs, it recalls Crat'idiis DscaJans, but the piiU'scence is not nearly so conspicuous as in the latter species. At first glance it might be taken for a ItumeralU, especially if the puln'scence has Imh'u removed, but tin* small size of the anterior tibial spurs will quickly sej)arate it from the feinah' of that species; the males would Im' more difficult of separation tunler such conditions. In htiliril \\\v >ides of the |)ronotMm ai"e M-.-iivcIy -.imirite j)osteriorlv 136 BULLETIN ()."{, UNITKl) STATKS NATIONAL MLSKl'M. and the base is truncate. The elytral base is tiMincate and the Innneri scarcely at all prominent anteriorly. , In liumcvdli.s the sides of the pronotuni are o Feiuiile. — 2 ?t .'5 A •) ELEODES LETCHERI var. VANDYKEI. new. More or less shining, elyti'a not pul)i'scent. Aiiteniue with the third joint scarcely as long as the next two couil)ine(l. fourth joint a little KKVISION ol' KLKolHINl MI..\ISI)i:i.l.. \'M longer than the liftli. the l:itt<-i- sliijlilly loiiL-'fr than the sixth, the hitter and seventh e(|nal. I'roiiotinn usually wich'sl at the iiiithUe. I'reijUently widest just, in front of the niichHe. Klijtni irit'ent -eta. These are not e\ident on the inflexed sides. • Otherwise as in letcheri, hut a little more robust. Meuxtii'cnu'iitH, — Males: I^'iigth. 14.r)-l() nun.: width. .">-(■..,'» nim. Feniahs: Length, LVKJ mm.; width ".'> nun. Gmitdl rh(U-ii!s. — The species of the present subgenus in outward hal)itus most nearly approaches Pseudeleocles^ and in the nniricately tuberculate heteroty])es this becomes more evident. The female genital characters indicate a common origin with Lif/ieleodes and Pronn/.s. In the ftu'mer there is also a tendency to hirsuteness (letcluTi). A vast amount of material must yet be care- fully studied before the present question can be at all satisfactorily settled. Increased effort at collecting in the arid regions of the West is a desideratum. Distrihfitioii. — The species prefer the arid i-egions of Nevada, Utah, and eastern California, one species extending northward into (Jregon, and also, according to Linell, into New INIexico. The two species of this subgenus may be sejiarated as follows: Larger spooios inor«> nr loss iinenliii'<' cvitieiit : (Iciiscly. stroii«rly. and rather linely |)Mn(tate, each pnncture l)eaiint noticeably longer than ilie liftli. the lattei". si.vth and seventh, snbe(inal, eighth abont as wide as long, ninth and tenth feebly transversely oval: eleventh short ovale. Pronotmn snbqnadrate. one-sixth to one-tiiii-d wider than long, widest at the midille: ely jiunctate. and feebly rugulose. Iloiizontal. Leijx moderate, ratln-i- stiongly but not very densely sculptured, clothed with short and M'mirecinnlMMit hairs: anterior tibial spurs slend«r and >ubequal, thosi- of the mesotibie sube<|lUll : the imier spur> 140 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. of the metatibia slightly longer than the external. Anterior tarsi very slightly dissimilar in the sexes; first joint ^arcely produced ventro-apically ; groove distinct. Male. — Somewhat narrow, scarcely robust. Elj'tra about one-third longer than wide. Abdomen moderately convex. Anterior tibial spurs (|uite short; first joint of the anterior tarsi with the spinules of the apico-niarginal angle not noticeably produced. Fonah'. — Robust. Elytra rather broadly oval, about one-sixth longer than wide. Abdomen strongly convex, anterior tibial spurs moderately long and slightly curved. First joint of the anterior tarsi with the spinules of the apico-margiiuil angles noticeably pro- duced. Measurements. — Males: Length, 8.5-10.'J mm.; width. 4—5 mm. Females: Length, 9.8-12 mm.; width. o.l-G nnn. Genital characters^ male. — Edeagophore of the usual general form, elongate, depressed and scarcely arched. Basale about five times longer tlian the apicale. oblong; surface nearly plane and narrowly, rather suddeidy convex at the sides, the latter feebly arcuate. Apicale short. e(|uilaterally triangular, convex at the sides and apex, dorsal sui'face nearly plane with a median linear, longitudinal, membranous groove at middle two-fourths; sides arcuate in basal third, thence moderately sinuate to apex, the latter blunt, the lateral sinuations giving it the ap]:)earance of being ])roduced : base nearly evenly arcuate. Sterrtite slightly transverse. Each lobe with the external border nearly straight in basal two-thirds, thence evenly arcuate to the internal border, angle obsolete; internal margin straight or feebly sinuate; surface shining, rather den.sely punctate in apical two- thirds, setose, seta' moderately long about apical uiargin. Sinus deep, narrow and ti'iangular. Female. — (Jenital segment subequilaterally triangular, not strongly chitinized, setose. Valriila. — Dorsal plate rather narrowly and elongately oblong- triangular in outline; surface more or less feebly concave, shining, .sparsely, wry finely jjunctate and .setose in ai)ical half; external bor- der uiore or less arcuate: internal border more or less simious; apical nuirgin not defined from the apex, angle ob.solete; apex short and triangular. ApjK'ndage short conico-mauunilliform. fossa small: seta^ on apex and appendage sparse, somewhat flying and slightly longest at tip of the ai)pendage. Superior piKlendal menihniiif I'caching to the middle of the dorsal l>lates and finely longitudinally rugulose. Basal prominences feeble. V< )itrolateial surfaces as in pilosa. lU'.VISloN OK KLKODIINI- MLAISDKI.I.. 141 Iliihittif. Cali t'oriiia ( WicUli.nii has taken tlli-^ specie^ at Hodir in July. clcNalion ^.iT.'t feet.) Nevada (spcciinciis in the V. S. National Mtisenni collection >ini|)ly l)ear the state hihel — Iliihlianl and Schwiirz; \\'ickhani has taken it at Reno. Carson City, and Qiieons Station). A .specimen in the Kiiclis collection bears a pencil label *' Crescent City," I know of oidy one siich locality in I)(d Norte Comity. Cali- fornia; (»n the pin also is a smaller label i)earing the letters CC. 1 do not believe that this species occurs in Del Norte County, and in all probability (he s|)ecimen was collected at Carson City, Nevada. Numl)er of s|)ecini<'ns studied. 7. Type a female in the LeConte collection. Type-locaJitii. — Utah — "(ireat Salt Lake Desert" (LeConte). Salient ti/i>(-(li(ir(irt(rs. — Thorax with the sides rounded, posterior anples obtuse. Elytra closely and ii'refrularly punctate, at the sides and apex submuricate (Ix^Conte). Diagnofftir c/uiracferx. — In form liimnta resembles Amphidova nir/rop/fo.sd. The body surface is shining and at times quite dull, especially on the head and thorax. The hairs of the elytra are nearly ecpial in leuL'th. and the sculpturing is quite densely, irregularly and not asperately. sui)muricately jmnctate. This spe<-ies can only l)e confused with pilosa, from which it especially differs in being smaller and more robust, with more broadly oval elytra, antl in having the sides of the j)ronotum distinctly margined. F'roni lonffipilosa it is quickly recognized l)y the niutic anterior femora and simple elytral apices. In ]i'nsiit variable as in piJom, and at times horizontal between the coxa', mucronate behind. The mesosternmn is more or less obliquely arcuate and (|uite bi-oatlly and deeply concave. The anterior tibia- have the external borders more or less feebly carinate in l»asal half and thence more or less finely arly always more j)ronounced in the males. "Two males in the I^Conte collection have the front and midtlle (ibiie the ha-t bit incurved at tip" (Blanchard). 142 BULLETIN G3, UNITED STATES NATIONAL MUSEUM. The edges of the tibial grooves of the femora are usually not at all carinate, and not well defined, the marginal lin^ is more or less scabrous; the floors of the grooves are slightly glabrous to punctate, shining or oj^aque. First joint of the metatarsi equal in length to the next two taken together. ELEODES PILOSA Horn. h'hoilr.s iiilo.sd IIouN. Trans. Aiiier. riiil. Soc, XIV. 1S70, p. '.U4. Elongate ovate, blade, more or less opaque to feebly shining, strongly punctate and sparsely clothed with brownish or black, erect, rather coarse and slightly stiff, conspicuous hairs, n<'(((/ scarcely convex, feebly impressed laterally, rather coarsely and densely punctate, sparsely clothed Avith rather short and more or less erect hairs. Antenna' moderate, first eight joints moderately pubescent, outer four joints feebly compressed and scarcely dilated, third joint eciual in length to the next two combined, joints four to eight inclusive subequal, eighth feebly triangular, ninth and tenth suborbicular. eleventh subacutely ovate. Protiotmn widest at or just in front of the middle, one-sixth to one-half wider than long; disc moderately and evenly convex, very coarsely and densely punctate, the punctures irregularly con- fluent, the interstices narrow and convex, more or less bright and shining, surface clothed with quite long erect hairs; apex truncate or feebly emarginate and obsoletely margined; sides not strongly, but evenly arcuate in aj^ical two-thirds, thence somewhat straight and feebly converging to the base, or very moderately and evenly arcuate from apex to base, margin hardly evident to distinct or obsolete; base truncate and finely margined, about equal to the length and a little wider than the apex; apical angles obtuse, not roinided nor prominent: basal angles obtuse, sometimes feebly rectangular and not prominent. Propleuro} opaque, evenl}^ granulo-uuiricate, with short semi-erect seta\ hlj/fra oval and about twice as long as wide: Jxi^e truncate and about as wide as the contiguous prothoracic base; humeri indistinct and rounded: sides evenly arcuate, apex very slightly prominent posteriorly and rounded : disc more or less evenly convex from side to side, rather suddenly and more or less arcuately declivous pos- teriorly: surface densely and irregularly, finely and muricately punc- tured on the dorsum, becoming confusedly nniricato-tuberculate on the sides and ajjcx: sometimes the surface is fnintly substriate, at other limes the punctures on the dorsum are arranged in rather dis- tant series, closely placed and unimpressed, with an interstitial series HKVISION Ol" KI.KUDIIM- l!I,AIS|)KI,L. 143 of little iiiorc (li-t;iiill\ :iiili. or l)laclv and coiisijiciioiisly erect ll\ in;; iiaii-s. those of the iiitei'stitial pmict iires Ix'iii^ much lonjrer than those of the strial ^erie^: iidlexed sides much less pubescent. H j)il>l( iirti (|iiite iiaiTow at hase and ^raduaily iiarro\viii follows: Forma ordinata. — Klytra with rather di>tanl unimpi-essed >-tria' of rather fine and i-losely placed punctures, each interval with a distiiu-t and regular scries of rather distantly jilaced subnniricate tul)ercles, feeble but distinct near the suture, each series increasing in size to the siiles where both series bectime irregular and confused. Each interval has a f«'w small and sparsely scattered |Mincture> between or al><>ut the liii)ercle-. otherwise as in pilosn. Mnisiin nil nts. — .lA/A; Length. \'^ mm.: width. <>.."» mm. Frmnlc: Length. !."• nun.; width. 7 mm. Gciiitnl ' /iiiriictcrx, uiiih\ — Etleago|)hor«' id" the u>-ual form, elon- gately oi>long-ovate. subdepressed not stiongly convex nor arched. 144 BULLETIN (33, UNITED STATES NATIONAL MUSEUM. Basale oblong, rather deeply impressed along the middle in apical half ;*sides feebly and evenly arcuate. ^ Apicale rather elongately triangular: dorsal surface evenly and not strongly convex, vaguely and narrowly impressed at the middle; sides very feebly sinuate: ajjcx gradually produced and acute; base broadly lobed at middle and feebly sinuate latci-ally. Stertiitc slightly transversely oblong. Each lobe rather narrow and somewhat long: external border quite straight in l)asal half, thence e\('nly arcuate to the ai)ex. the latter rounded: internal border sinuate and more or less membranous; surface feel)ly convex, shining, sparsely punctate and setose, setae rather long and dense at apex. Sinus rather l)r()a(l. membrane not setose. Fcnuilc. — (rcnital segment subequilaterally triangular, with the dorsal surface strongly concave, well chitinized and setose, setae short, sul)e(|ual. and sparsely distributed over the apex, appendage, and apical moiety of the dorsal plate. Valvida (Plate 4. fig. 14) reflexed externally. Dorsal plate ob- long-oval ; surface evenly concave, glabrous, finely and sparsely punctate; external border not well defined from the lateral surface towards base, arcuate apically; internal border arcuate and slightly reflexed in ai:)ical half: apical border continuously arcuate with the external and not defined from the apex, angle and external lobe not evident; apex short and triangular. AppeiKjiKjc short and manunilliform. fully visible from above, directed uj^wards an|)('ciiii('Ms studied. 1<"). Typo in tlu' Horn collection. 7'i//>('-7()t(i/!ff/.—()\\i'us \'al]ev. Cali t'oniia. Sdh'ciif ti/iK-ilKir(icti'i'H.~'\\\i)V\\\ siil»(|ii:idr;ilc. fccldy n;iiro\ve(l hc- liiiul. .side.s niodei-ately rounded. niar aicuately into the Hanks: .n the greater number of specimens the margin is more or less evi- dent, while in others it is distinct and beade(l. l*ronotal variations (Plate II. ligs. 27. 'lb, and 20) are noticeable in the series at hand. Typically the sides are slightly narrowed Im'- hind and moderately rounded. The males show the greatest amount of narrowing, and in one examjjle the sides are very broadly and feebly sinuate, the basal angles being slightly pi-ominent : in two females the sides are distinctly angnlate: in both sexes the side^ are fre(|uently evenly rounded from apex to the base. The anterior tibial spurs, although subetpud in length and thick- ness, appear to vaiy slightly so as to obscure the true structural rela- tionship. At the most the ditlerence is slight. In males the anterior spur may appear just the least bit the longer and thicker; the same 51)780— Bull. 63— W 10 146 BULLETIN l' iln- (l(H"sal j)lat('. (iciiilal lissiiri' Niiliapical. (rtnirdl ohsi ri'dtiinis. — 'I'lic ililiTiial >j)iii> (il" llic iiirso- and iiifla- tibia' arc sli<;li(ly l<)iiMlK'(iual in l('n<^th. and >li^lillv broader titan ionir- Ilie nicsotarsi arc altoiit onc-foui'th of their length lon^erthan a protaiMis and >Ii^htly shortei* than a metatarsus; the first fonr joints are snlu'ipial — the fiist undonhtedjy .-liirhtly the longest — and about as wide as lon^'. The metatarsi liave the second and third joints snlxvinal. l»oth loirctlici- slightly longer than the first. In tlu' male tlic intcrcoxal j)r()ccss of the first alKlominal segment is sul)<|nadrate :ind just slialiiililiy transverse and sti'on^iiy cliitini/ed. I'^acli lohe latluT narrowly I liannular : exlernal itorder rather evenly arcuate, apex nairovvlv rounded, intei'ual hoi'dei' >inuate; surface eflahi'ous in basal thii"d, den>ely punctate and setose in apical two-third^, seta* rather lon^ and dense. Sinus liroad and <|iiadrale and the mem- brane is not setosi'. F(m(il(\ — (lenital seenit'iil short and robust, sub|)aiabolic in out- line. Vdlriild (l*late 4, \v^. 13). — Dorsal plate subobovate to suboval, about twii-e as loni'(nnincnc(s obsolete. Superior pu(l<'ti<1al memhraiK reaching to the middle of the dorsal l)late and longitudinally rugidose. Vctitrohtfrnil siirfiiiilly <)l)s<)l('(t' iiinl the sides of the pro- iiotiil disc arc coiitiiiiioiisly convex with (he llaiik>. Ordiimi-ily. the iiuir«;iii is (incly crciiidatc. In (»nc specimen the niai'^'^in is distinctly (h'vel()j)ed in the anierinr tw o-lliird- of ilie |ironotiini. where it is acute and niinntely rellexetl. In the LeConte collection alon^' with llie type (here i> placed a male and female. wi(lion( locali(y lahels and of |)ecnliar form as follows: The elyda ai'c >cnlp(ni"ed a> in (jriinosn. (he (hoi'ax i- M'ly o|>a«|iie •with I'athei' clo>e. coai'se. and shallow |)nnclnfes. a> if (he iii;fo>ities seen in (he type of t/rnintsd had lu-en woi'ii down. The thorax is mnch hi'oader. with (he an(erioc an(» convex, more elongat(* and more a((enna(e postei'iorly. The foi'eiroinii' applie>~ to the female as comparcil with the female of (jninosii. The male has distinctly lon. Nevada, are deep l)hu-k and shining, the sculpturing coarse as in the Panamin( \^dlev specimens ai)ove referred to. The mentnm exhihits considerahle \ariation. being moderate in >^ize. triangular or suhparaholic in outline, convex at middle and exca- vated laterally. The |)rostei-nnm is more or less evenly convex antero- posterioi'ly between the coxa', fi'ccinently grooved: nMicrona(e behind. the nuicro moderate, conical or triangular. Mesosternum >hort. vei-y obli(|ne. and bi-oadly concave. The external borders of tlu' anterior tibia' are tlistinctly carinate nearly to the apt'X. and the middle and posterior tibia' to a greater or less exti'ut as well. The tibial giooxo of the femora are well tletined. tlu* margins are subasperately punctate and the Moor of each is more or le» pnnctate and opaque. The antei-ioi- tar>i are ^nbe<|ual in -tondie-^ and lengdi in the se.xes. Tarsal formula : rrliitlbl.i>. Male.— L»* W \\ Female.— 2 i 3 3i 6 152 BULLETIN' 63, UNITED STATES NATIONAL MUSEUM. Subgenus PROMUS LeConte. The first, or the lirsl and second joints of the anferior tarsi of the male, are more or less thickened and sometimes flattened beneath, and densely clotlied "vvith fine pubescence. These characters arc most strongly developed in (joryi, where the pubescence is almost spongy and the tufts are distinctly flattened; the first joint of the mesotarsi also have a similar but smaller tuft. In fiisifonnls^ .striolntii. and opaca the tufts are smaller and less strongly flattened, and in iiixularis and suhnitcns the pubescent pads are smaller and not flattened; in the former the tuft is pointed and in the latter subtruncate. in both the i)ubescence is slightly longer. The form is usually more or less fusiform in outline, but in insn- hiris the greatest width of the elytra is behind the middle, and the insect is more ovate than fusiform. Some examples of siihitik'ti.s are subovate. The sides of the i)ronotum nearly always converge anteriorly and the elytra become gradually broader in the same or nearly the same line with the pronotal sides. This is most pronounced in opaca and fasiformis; in striolata, f/on/l, siihnifen.s. and insula) ix the sides of the pronotnm converge more or less posteriorly, so that the lateral line is interrupted to a greater or less extent. l^ahgenenr (/enital eha?rirters, male. — Apicale of the edeagophore distinctly longer than wide, somewhat depressed, dorsal surface moderately convex and marked by a more or less well defined mem- t)ranous. median groove; a})ex acute and moderately attenuated; base usually broadly lobed at the middle. Female. — Genital segment more or less quadrate, internal lobe of the apex Avell developed, the external being rudimentary. Sides of the dorsal plate reflexed with the >urface concave between, outwardly explanate and more or less deflexed at the periphery. The dorsal plate has the external l)order more or less arcuate, the surface strongly punctate, conspicuously and sparsely setose, the seta> being quite long and flying. App<)i(lai(/i, and sliMidei" in striohita, fu.stfon/n.s, and ojxicd; less eionpite and t'eehly robust in tiixiihirix. After careful comparat i\'e measuri'iiieiits of the tarsal joints, I can not present any useful facts relative to the comparative lengths of the sevei-al joints of each tarsus in the tlifl'erent s|)ecies. The foll()\vin«r are my notes on the tarsi of sulmifcns: In the protarsi the second, third, and fourth joints combined are about e(iual in leiit}/i. the first joint of the protarsi is much thicker than the succeeding ones and as long as the next two taken together. The differences are so slight that they could not be utilized in the determination of species. In the males the intercoxal process of the abdomen lies in the sanu' horizontal |)lane that the iiieta- and mesosterna do, and the abdo- men behind the metacoxa' is deflexed. As a result, its surface is ob- lique to that of the sterna. This character is scarcely evident in o/xKd, Htriohdd. very feeble in in.siihiriN^ and more or less well pronounced in the other species. In the females the abdomen is always horizontal and in some in- stances slightly |)roniinent ventrally with the sterna. Tl'.e relative length of the abdominal segments has to Ik* considered. In tlu' male of insnhiris the intercoxal process of the first ai)dominal .segment is (piite <|uadrate, and about eciiia! in liMigth to the second segment; the post-coxal portion is also subequal in length to that 154 BULLETIN 0:i, TXITKD STATES NATIONAL MUSEUM. of the second, the latter being distinctly twice as long as the fourth; the third is about two-thirds as long as the second^ In the female the abdominal salient is transverse, nearly twice as wide as long; the i)Ost-coxal jiortion of the first segment is about equal to tlic second ni length: the second is nearly two and one-half times as long as the fourth; the third nearly two-thirds as long as the second. The first three segments are relatively longer than in the male. SiibnitoiN. — The male has the intei'coxal process of the first ventral segment just noticeably transvei-se. and tlu' post-coxal part is scarcely as long as the second: the third is slightly less than twice as long as the fourth. The female has the intercoxal process slightly transverse, and tlie l)Ost-coxal ])<)rti()n of the first is about e(|ual to the second in length; the third is al)out three-fourths as long as the second and about twice as long as the fourth. Goryi. — The intercoxal ])r()cess in the male is distinctly transverse, and the post-coxal j^art of the first segment is scarcely as long as the second, the latter being about one-fourth longei' than the third: the fourth is about one-half as long as the third. The female has the intercoxal salient strongly transver.se and about equal to the second in length; the j^ost-coxal portion is scarcely as long as the second; the third is about two-thirds as long as the second and about twice as long as the fourth. tSfn'ohifd. — In this species the male has the intercoxal process trans- verse and rather short, about equal to the fourth in length; the post- coxal i>art of the first ventral segment is about as long as the second, and the fourth is scarcely one-half as long as the latter. The female has the intercoxal process moderately transverse and scarcely as long as the third segment, and the post-coxal ])art of the fii'st is nearly as long as the second; the third segment is about three- fourths as long as the second, and the fourth is nearly two-thirds as long as the third. The first three segments are com])aratively long. Fvxiformix. — The intercoxal process of the nude is distinctly (juad- rate and e(|ual in length to the post-coxal part of the same segment, which is sul)e(iual in length to the third; the second is about twice as long as the fourth segment. The female has the segments proportioned about as in the male, but slightly longei-. The intercoxal process is (piadrate. Opaca. — The male has the intercoxal salient short and slightly transverse, the post-coxal jiortion is e(iual in length to the third and the second is about twice as long as the fourth. The abdominal salient of the female is comi)aratively small and nearly quadrate, and the post-coxal part of the same segment is sub- HKVlSHiN (H' K1.K(»1)I1N1- HI.AlShKM,. 155 ('(|ii:il lo (he second: (he third is aWoiil twd-tliirds as l(Hi«r as the pn*- crdiii^r s(';i;iii('iil :iinl (Uir third ioiiji-cr than the r<»iirth. I iisiihiris has (he ahdomiiial salient alxnit ei|Mal in width to the Icn'jth of the third and fourth seiting the southern |)art of Lower ("alifoi'iiia and an adjacent island. Siihiiittii.s inhabits central and southern Arizona. I know of no record of its having l)een taken in Mexico, but it may occui- there. Gory't is taken in New Mexico. Texas, and Mexico. 156 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Striolata is found in southern Texas and the adjoining regions of Mexico. ^ Fusif omits is distributed over an extensive area as follows: Texas, New Mexico. Kansas, Colorado, Nebraska, and southern Wyoming. Oj)(ic(i also has a wide distribu- Gorvi ^*^V^** tion, l)ein^ tri:iii^iil;ii". tenth x-nrccly t raii^Ncrx'ly oviil. clfxciilh suboval. I'roiiotiiiii siilxniadriUc. nitlicr dull, widest nt the inir.r moi-e oi- less emar<;inate, frequently wnn-v. notieeahly so hiterally. xcry linely or more or less obsoletely mar- gined; .sides broadly, eveidy and not strontron rather long and flying, somewhat dense; external border more or less straight in basal half, thence broadly arcuate with the a])ical margin; internal border arcuate in apical half, thence outwardly oblicpie to base and more or less arcuate oi- straight. Apex rather snuill. subacute at tip and more or less finely setose. Apjx >i(l(ii('s directly hiicUward, and tluMvfoii' iinint'diatcly contimioiis witli llu* valvulai- nicinhranc, tluTO IxMn*; no fornix latci-ally, the anp:l(> formed is in (he median line and corresponds to mar^rin of the <;enital orilice. UtilnUit. — Ishmd of Santa Mar«rarita (coHected hy the Alba- tross Expedition of 1SS8, collection of V. S, Xatiomd Mnsenm): Lower California (El Taste, (lustav Beyer; San Francisquito. Coll. Acad. Nat. Sciences of San Francisco). Number of specimens studied. .'V2: 2*2 from Santa Marirarita Island, and 10 from the mainland of Lower California. 7>/><'.— Cat. No. 41(10, U. S. National Museum. Tj/iK'-locdlitii. — Santa Marjrarita Island. Lower California. Sntial structural characti'rs with the specimens from the i>land. and I therefore consider them (o be one and the sjime. Both have the elytra widest behind the middle; the femoral teeth vary in both sexes, sometimes acute and again obtuse in the males. In the pen Insular form the body is rather more convex and the elytral punctuation is stronger and the stria' more or less impressed, the intervals almost feebly convex. The tarsal spinules are ferruginous in the insn/ar fotvn and darker in those of the mainland. Specimens of the peninsular form, collected at San Francisquito. and which were before tlu' great disaster in the collection of the Cali- fornia Academy of Sciences, were referred to gent His by Doctor 160 Bl'LLETIN 63, UNITED STATES NATIONAL MUSEUM. Horn : tlio latter species is a race of gigantea^ and occurs much farther north in southern California." ^ Some observers have referred this form also to innocens, which does in some respects resemble it, for instance, in being widest at the posterior fourth of the elytra, the latter having striae of punctures which are more or less impressed and the intervals more or less convex, hinoci'ns is also more elongate, and the genital characters present a decided subgeneric diflference. Compare in Plate 4, figs. 21 and 22. Reldtionships. — Insnlaris is no doubt more closely related to t>nh- niteiis than to any other species in the United States fauna. It is a true Projnits in genital characters, and not intermediate between Blupi/lis and I'Jleodcs proper as suggested by Linell. General obserrations. — The mentum is variable, and moderate in size. The middle lobe is subtrapezoidal in outline, sides more or less arcuate with the apex or converging with the apex more or less rounded. Prosternum not prominent ventrally. In the insular specimens it is quite evenly but not strongly rounded, antero-posteriorly l)etween the coxa?, with a small mucro behind : in the peninsular form it is quite horizontal between the coxa^ and terminating behind in a rather strong and subtriangular mucro. Between the coxic the surface is more or less strongly punctato-rugose. The mesosternum is quite gradually oblique and more or less con- cave. The tibial grooves of the femora are usually distinctly evident for the whole length of the inferior surface, the floor of each being (|uite j)lane and glabrous or more or less punctate; the nuirgins are more or less acute and cariniform. In the peninsular specimens before me the floors are quite glabrous. The external borders of the anterior tibite are distinctly carinate, the carina forming the anterior lip of the tarsal groove, which is here clearly indicated and not at all glabrous. The middle and posterior tibia' are evidently very faintly or not in the least carinate externally near the base, and the tarsal grooves are indicated in apical three-fourths, margins more or less well in- dicftted. The grooves are scidptured like the rest of the tibial surface. The |)rotarsi are about of ef|ual stoutness in the sexes. Tarsal formula : Pro. Meso. Meta. Metatibia. Male.— 2i 2i 3 5i Female.— 2 2} 3 5i "See Proo. California Acad. Sci.. 2 ser.. TV. Pt. 1. pp. 306 and 349. REVISION OF KLKODIINT — BLAISDELL. 161 ELEODES SUBNITENS LcConte. Kirtiths MKhilrtiM I.kContk. Ami. I.ytcnm Nnt. Hist. N. V., V isr>l. p. l.*{4.— HoKN. Trans. Amor. Phil, Soc. XIV. isTo. j.. :{l<». Fiisifoi'in to clonfjatc ovale. noticoaMy narrowed aiit«'riorly, surface j;iibopa<]iie, Hnely punctate and sniootli. Ilctid evenly convex, impressions scarcely evident, frontal siiture di.stinct; surface finely and evenly punctate, punctures quite indis- tinct over the vertex. Anfcnntr long, rather rohust. outei- four joints slightly compressed and feebly widened; third joint equal to the next two taUen together: fourth just noticeal)ly longer than the fifth, the latter to the eighth inclusive subequal in length; ninth and tenth feebly and transversely suborbicular: eleventh short oval. Proiiotiini (juadrate. widest at the base and slightly narrowing from base to apex, rarely widest at the middle and narrowing slightly to base as well ; ^//.sr evenly convex from side to side, very finely and sub- obsoletely punctulate; nptw feebly and broadly emarginate, obsoletely margined and equal to the length; sides feebly and quite evenly arcu- ate from apex to base, very finely beaded; hase i)roadly and feebly arcuate or subtruncate, about one-fourth longer than the length, one- sixth to one-fourth wider than the apex; ajiical angles subacute and anteriorly pronjinent ; basal angles obtuse and not rounded. Pn^plfiira smooth, obsoletely punctulate and rugulose. Elijtm oval, widest at or just behind the middle, and moderately attenuate in apical fourth; base feebly and broadly emarginate or subtruncate, slightly wider than the contiguous prothoracic base; humeri obttise or feei)ly su!)acute, scarcely or very feebly prominent anteriorly ; sides evenly arcuate, apex subacute or narrowly rounded ; disc moderately convex or slightly depressed on the dorsum, laterally regularly rounded, arcuately declivous posteriorly; punctate, punc- tures fine and closely placed in rather distant unimpres.sed series, intervals more or less irregularly and very finely punctulate: sculp- turing more or less indistinct, not denser nor coarser laterally and on apex. Kpiplenm slightly widened at l)ase. thence gradually narrowed to apex, not wide, the superior margin broadly sinuate basally and curv- ing iipward to the humeral angle; surface smooth and obsoletely punctulate. Sfenid smooth and more or less obsoletely sculptured. Panipleuva smooth and more or less distinctly or obsoletely punctate. AhdiniKii smooth, finely punctulate. and more or less indistinctly rugulos*': fifth segment finely seto.se about the margin. Lkjs rather long and moderately .slender. Anterior femora dentate or sinuate: the anterior spurs of the anterior tibiie similar in the 59780— Bull. 63—09 11 162 BULLETIN 03, UNITED STATES NATIONAL MUSEUM. sexes, and slightly larger and longer than the posterior. Tarsi dis- similar in the sexes and rather robust. • Male. — Body feebly robust and somewhat narrow. Antennae reach- ing beyond the prothoracic base. Elj^tra not broadh' oval, noticeably attenuate, and rather obliquely declivous posteriorlv; apex not pro_;;_ duced ; abdomen more or less oblique, moderately convex, and the first segment is more or less broadly impressed at middle. Anterior femora armed with a moderate and acute tooth at outer fifth. Ante- rior tarsi with the first joint very feebly thickened, and clothed in apical third beneath, with a tuft of silken jiubescence; second joint simple with groove entire. Female. — Robust. Antenna' reaching slightly beyond the pro- thoracic base. P^lytra broadly oval, less attenuate, and arcuately declivous posteriorly. Abdomen rather strongly convex, horizontal. Anterior femora more or less distinctly sinuate in outer fifth; ante- rior tarsi unmodified. Measvrements. — Males: la^ngih, 21-24.5 mm.; width, 8.2-9 nnn. Females: Length, 23-26 mm.; width, 10.5-12 mm. Genital chararf e7';s, male. — Edeagophore elongate fusiform, scarcely arched. Basale oblong-oval, sides subi)arallel, surface moderately convex. Apicale triangular, about one-half longer than wide; surface mod- erately convex with a membranous groove in apical half: sides feebly arcuate or straight to the tip, the latter acute; base rather narrowly rounded at muldle, broadly and feebly sinuate laterally. Sternite quadrato-parabolic. Each lobe rather long with the ex- ternal border evenly arcuate, apical margin rather narrowly rounded, angle not evident; internal border arcuate; surface slightly convex, rather densely and coarsely punctate, sette long and quite dense. Sinus broad, a])ical half not closed by membrane, the latter not setose. Female. — Genital segment subquadrate in outline. Valves expla- nate externally, deflexed at apex and reflexed laterally and quite densely setose. Valvula (Plate 5, fig. 3). — Dorsal plate oblong-ovnl: internal fifth reflexed, glabrous and impunctate, externally upwardly oblique and more or less deflexed i)erii)herally.; surface longitudinally channeled, rather densely })unctate and setose in outer four-fifths, seta* long and flying; external border (juite arcuate; apical margin arcuate exter- nally with the external margin, inwardly sinuate with the internal apical lobe and set with seta; inner margin broadly arcuate. Ajiex triangular and rather short, finely setose. Aypenihuje large and transversely semielliptical. rather thickly set with quite long hairs. Fos.sa transverse, narrow, and closely fitting the base of the appendage. Basal prominences not evident. REVISION OF ELEODIINI — BLAISDELL. 163 Superior jnnh ndul nil niliniiH- ohsolclcly i-iij^nloso niid rcacluiig about to llic iiiiiltllt' <•!' (lie dorsal |)lat<'. Vctitrohitiiiil siiffiicts.- Body of the sc^niciil with llic siiliiiiar^''iiial i:i(io\f. the laKci- liinail and shallow from the base beneath the cxplanate external border of the d()rs;il |)late: surface coarsidy |)iinctate and setose, seta- rather short, (icnital li-'-iii'e rathei- narrowly fusiform, the internal uuir<;ins of the valves bciniif contii^uous in l)asal and a|)ical fourths, inferior |)uden- dal membrane a|)parently closin*; the fissure. Ildhitdt. — Arizona (rofrion of the (Jila Ivixcr. LeConte and Horn: Fort (Jrant; Oracle in A|)ril. Ilubbai-d ami Schwar/: I'rescott. col- lection Charles Fuchs; Noj^ales. September 22, Albert Koebele and F. W. Nunenmacher ). Number of specimens studied. -20. Tyi)o in the LeConte collection. Tijpe-locaUti/. — " l-'lumen (Jila." .Vrizona (IjoConte). Sulicnf fi/iK-(]KirroMo(um becoming more strongly arcuatt'. The mentum is variable in form as in hixiilnns. The surface i< more or h'ss distinctly excavated laterally and as a result the mi«Mle is more or less longitudinalh ridged. 164 BULLETIN 63, UNITEU STATES KATIOXAL Mt'SEUM. Prosteinuiii is horizontal or feebly arcuate between the coxae, and quite strongly and subtriangularly mucronate behind. The pro- sternum gradually slopes from the anterior margin to a point between the coxa\ so that the coxal region appears less suddenly protuberant ventrally than in many other species. In a larger series than the one before me there would no doubt be greater variation in this respect. The mesosternum is moderately oblique and (juite broadly concave. The tibial grooves of the femora are much less strongly developed in this species than in iii.sulari.s. In the anterior femora they are the widest and moderately concave, sides converging from the femoral teeth, becoming evanescent before reaching the base: the middle grooves are less strongly defined and narrower, evanescent before reaching the base; the posterior are the least developed, quite narrow and evanescent near the middle of the femora. The margins of the grooves are obtuse, rising but slightly above the quite flat floors of the same. The anterior margins of the profemoral grooves are cari- nate. becoming dentately laminate at outer fifth, and thence to apex sinuate and more or less obsolete. The tibia' are not noticeably compressed, and not in the least carinate externally : the tarsal grooves are rudimentary and more or less obsolete. The tarsi are abotit ecjually stout in the sexes. Tarsal formula : I'm. Mi'so. Meta. Metatlbse. Male.— 3 ^ 4^ 5 7 Female.— 3* 4^ 5 8 ELEODES GORYI Solier. Eleodeft garni Solier, Stiuli Eiitoniol.. 1S4S, p. 2.51. pi. x, tigs. 14, 15. — Champion. Biol. Con tr.-Anu'i-., IV, Pt. 1. 1S.S.5. p. 93. Eleodcs scriata LkContk. Proc. Acad. Nat. Sci. Pbila., ISoS. p. 185. — Horn, Trails. AiiitT. Phil. Soc. NIV. 1ST(». p. :nn. Ovate fusiform, more or less shining to subopaqne, strongly con- vex, elytral punctures usually within larger dents. Head less than twice as wide as long, feebly convex, rather finely and more or less den.sely punctate. Antenmp long, reaching beyond the prothoracic base, outer four joints scarcely compressed and feebly dilated, third joint not as long as the next two taken together, fourth decidedly longer than the fifth, the latter to the eighth inclusive sub- equal, eighth triangular, ninth and tentli more or less orbicular, eleventh oval. Pronotum widest at the middle, where it is but slightly wider than the base; r/Asv moderately and evenly convex, finely, rather densely and regularly punctulate; apex moderately deeply emarginate, finely or more or less obsoletely beaded, and scarcely eijual to the length; HKVISIoN ol' Kl.l.ortllNI ULAISHKIX. iGf) sn/rs iiioro or Ic^s (■()ii\('ri>I< nni nioic or less conxcx, obsoletely punctiilate and more or less rn^ulose. FJiitva oval, and more or iesN inflated; Jnific truncate to slightly emarnfinate and scarcely wider than the contifrnous prothoracic base; Ininit r't obtuse anil not in the least rounded to subacute, not promi- nent anteriorly; sides evenly arcuate, aj^ex obtuse and not produced; dis<- very stron«;ly convex and without any seml)lance of even an ob- tuse iiiar mm. Females: I^Migth, 10-*2*2 nun.: width, 8.2-10 mm. 166 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Genital characters, male. — Edeagophore oblong-oval, rather pro- longed and acute at apex, not arched. ^ Bamlc oblong, evenly and moderately convex, sicles nearly parallel and very feebly arcuate. Apicale triangular, moderately elongate, more or less arcuately decurved at tip; surface evenly and not strongly convex, Avith a median linear groove at middle three-fifths, which is sliglitly dilated in basal third and more or less membranous; sides moderately arcuate in l)asal tliird and thence broadly and evenly sinuate to apex, the latter pnxhiced and acute; base subacutely h)be(l at middle, broadly and more or less sinuate laterally. Sterriite subtriangularly parabolic in outline. Each lobe triangular with the external border more or less straight in l)asal half, thence evenly arcuate to apex, the latter moderately rounded ; internal border only defined near apex, thence to base membranous; surface more or less convex, bright and shining and sparsely punctate in the externo- basal half, with the interno-apical moiety sloping inwards toward the sinus and membrano-chitinous. densely pvmctate and setose, seta? quite long. Sinus narrow and nearly closed by membrane, the latter more or less setose. Female. — Genital segment subquadrate, apical half more or less deflexed and conspicuously setose. Valvula (Plate 4, fig, 5). — Dorsal plate obovate, with the internal fourth of the apical half reflexed, smooth and glabrous; outwardly plane or feeble convex, surface shining and sparsely punctate, each puncture with a long seta ; external border straight to feebly arcuate; apical border more or less arcuate to subtruncate and moderately rounded at the angle; internal border arcuate in apical two-thirds, thence outwardly oblique and more or less sinuate to base; apex moderately short, acute and finely setose. Appendage flattened, semi-oval, scarcely twice as wide as long, sparsely clothed with rather short seta3. Fossa large and fringed with quite long setae, longest externally. /Superior pudendal mrmbranc reaching to about the middle of the dorsal plate, reflecte(rai)ically and continuous with the valvular mem- brane without fornix, and thereby shortest in the median line. Ventrolateral surf ares very moderately convex; surface lines straight as viewed hmgitudinally. rather densely clothed with quite long setae; submarginal groove broad and oblitjue beneath the ex- ])lanate external and aj)ical borders of the dorsal plate, terminating at the internal nuirgin of the fossa. Valves contiguous in basal third, the genital fissure rather broadly fusiform, and closed in the basal half by the inferior pudendal membrane. REVTSTON OF F.T.F.ODTTXl — RT.AISDKLL. 107 ll(i})itat. — Texas (liiowiisvillc, .Fiinc. Iliihhanl and Sclnvarz. II. I". Wickliain; Hosfjiie ('(niiity, (J. W. Bi'lfra<;('; San Dit'^o, May, K. A, Schwai/: Iii't'\ilU>, April; San Antonio, June, II. Soltan; Dallas; Dimmit ("<»iiii(y. IIiiMiaid and Scliwai-z) ; New Mexico (Dr. (Jeorge Horn): Mexico (Mirador. Salle; Kiiicnnado. II<")^'e). Niimlu'i- of specimens studied, I.'). Txpc is in (lie Solicr c(»lli'<'(ion ; of siiiata in the LeConlc collec- tion. Ti/i>r-lt)t(iHty. — Mexi<'() (Solier) : Texas (Ix'Conte). Siil'h lit ti/i>i'-rhara(tii'S. — Suhopacini'. Thorax (juadrate, slightly nanowiiiiif anlei-iorly. sides feehly ronnded ; apical ani;les acute: hasnl anirles obtuse and not rounded. Klytra with the \k\>v hroadly einarginate. humi'ri acute. .stron«:;ly striato-punetate, intervals irr<'<;u- larly. finely and sj)ar>ely |)unctulate {xcniinctate and at times more or less excavated laterally. Prosterniim more or less evenly arcuate from the anterior margin to the tip of the intercoxal process: at times more or less horizontal between the coxa*. All of the specimens examined have the j)rosterna stronirly and triangulo-conically niucronate beliind. M<'sosternum at times oblirpiely subhorizontal or feel)ly arcuately oblique, rarely vertically arcuate, always more or less stnuiirly concave. The «rrooves of the anterior femora are inwardly attenuate. aI)out rea<'hinss obsoletely j)iinctate. Alxhunt n smooth and shiniiief. usually obsoletely |)unctate ami more or less Hni'ly ru<;ulo>e; horizontal. L('(/x tiuite lonef and slender. Anterior femora dentate or sinuate; anterior spurs of the antei'ior tibia' about a half lonjrer and slit(' nnd feebly robust. Antenna' reachiniif a short distance Ix'yond the prothoracic base. Klytra rather e;ra(hially declivous jjosteriorly. Abdomen moderately convex. .Vntei'ior femora with a moderately acute tooth at outer fifth: anterior taisi with the first and second joints feebly dilated and liattened beneath, densely clothed with a fine golden spon^- pubescence: mesotarsi unmodified. Finiah. — Hody ovate and robust. Antenna' reaching sli-!» mm. FeniaJrs: Lenjrth. 20-2^^ mm.: width. 0..')-10.r) nnn. (rciiifdi r/ian/cfrrs. niitlc. — Edeagophore elongately fusiform, scarcely arched and rathei' dejiressed. Batidh oblong oval, feebly and e\enly convex, sides feebly ai'cuate. Apirdlc triangular about one half longei- than wide: surface rather feebly and evenly convex, with a narrow membranous groove in middle third: sid<>s i-atl)ei- sti'aight oi- f('el)ly arcuate, apex acute; base rather narrowly lobed at the miildle. broadly sinuate laterally. Stentife transversely parabolic in outline. Each lobe with the external bordei- evenly and rather broadly ai-cuate with the a|)ical border, which is narrowly rounded, angle scarcely evident at thi' internal border, the latter short; surface more or less convex, jnem- branous in the internal half, chitinous externally, sparsely punctate, setose; seta> rather long, slightly longer on the apical edge, not very dense; surface impnnctate in basal third. Sinus broad, nearly closed by the membrane, the latter with a few scattereil seta'. Foinih . — (lenital segment sub(juadrat*'. valves more or less reflexed and exi)lanate externally, deflexed at apex and distinctly setose. 170 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Valvula (Plate 5, fig. 2). — Dorsal plate oblong-oval. Internal border slightly reflexetl in apical half and iinpunctate, externally more or less reflexed; surface slightly concave longitudinally, finely and sparsely punctate, each puncture with a ratiier long flying seta; external border arcuate; apical margin arcuate in the external half and sinuate within to the internal lobe of ai)ex, the latter moderate and triangular; internal bortler more or less arcuate apically and sinuous toward base. Apical margin set with a few flying hairs, and the apical lobe is finely setose. Appendage short and broadly semi-elliptical and set with rather short setie; its external margin is continuously arcuate with the ex- ternal border of the dorsal plate. Fossa narrow and transverse. Basal prominences not evident. Superior pudendal memhrane reaching to the middle of the dorsal plate, feebly and irregularly longitudinally rugulose. Ventrolateral surfaces ratlier strongly convex, narrt)wly and trans- versely so laterally, glabrous, sparsely and coarsely punctate, finely setose about tiie apex ; submarginal groove broad, passing quite obliquely to the internal lobe of apex. Oenital fissure narrowly fusiform; valves quite contiguous basally and apically. Inferior pudendal membrane not visible. Habitat. — Texas ((loliad County. October, J. 1). Mitchell; San Antonio, Hubbard and Schwarz; Victoria; adjoining regions of Mexico, Dr. George Horn). Number of specimens studied, 11. Type a female in the LeConte collection. Type-locality., Laredo ("Webb County) to Ringgold Baracks (Starr County) in southern Texas along the Rio Grande. Salient type-characters. — Shining, thorax quadrate, slightl}'^ nar- rowed anteriorly and posteriorly; sides moderately rounded, apical angles acute, the posterior obtuse. Elytra with the humeri acute, slightly caudate at apex, punctures of the disc arranged in approxi- mate series, becoming obliterated upon the uj^ex. intervals sparsely and fineh' punctulate (LeConte). Diagnostic characters. — Easily recognized by the character of the elytral punctuation, Avhicli consists of closely placed series of fine punctures, and by the elytral apices being slightly produced and feebly divergent. The males are (piite fusiform and noticeably elongate; the females are more ovate; the legs are cpiite long and moderately slender in both sexes. It is most closely related to fasi- formis and lial)le to be confused with some of the larger specimens of that species. In .striolata the anterior femora are armed in the males and sinuate in the females, the humeral angles are not prolonged and REVISION OF ELEOniINT — BLAISDELL. 171 do not clasp the prothoriu-ic basr; the piotlioiax is moic <»r less wider at middle than at l)ase. Aiidtliei- di>tiii^niisliin<; «haiacter is the feehly eaudate elytra. 1 have seen specimens of strlitlntd lahejcd fi/.s/'fornu's in collections — lar^'c e\am|)le^ of the latter may simulate tlu' f(irmer i)y having the elytral jjunctuies arian^i'd in closely placed series. The tarsi in the two species are loufjer and more slender than in the other sjjecies of Promiis, ojKicd excepted. At the time of wi-itinir tlir Revision Doctdi- Horn had but three females before him and he had souic doubt about placing the species in the j)resent subirenus. I can not tind any mention in the literature of a male ever havin«j; been stiulied. I have a series of eight males l)efore me and tind them to be true Prom i/fi. The mentum is (|uite trian<;ular, with apex rounded, in the speci- mens examined, and the surface is more or less convex at midtlle and foveate laterally. LeC'onte writes that the i)rosternum is horizontally produced and acute. In the series at hand I find it quite homogeneous — rounded antero-posteriorly between the coxie and gradually, more or less evenly subconically nmcronate behind. The mesosternum moderately ol)li(|ue, feebly arcuate, broadly and more or less deeply concave. The tibial grooves of the femora are not well developed and are more or less concave and glabrous, impunctate. Those of the pro- femora extend to about the middle and are inwardly attenuate, some- times obsoletely indicat<'d to the base: margins oi)tuse. rarely sub- carinate, the anterior margin being usually sinjply dentately laminate to produce the tooth in the male; in the female the anterior grooves are generally ([uite concave and well defined. Those of the meso- and metafemora seldom extend inward to the middle, rarely more than the outer third and are more or less poorly defined ; at times the posterior grooves are short and evanescent in the females. The external surfaces of the tibia' are lounde*!. and in the exam- ples before me not in the least carinate; the tarsal grooves are obso- lete, those of the mesotibia' being frequently indicated, the external surface is occasionally flatt«'ned. The anterior tarsi are distinctly more robust in the male than in the female. Tarsal formula : I'm. Mcsi. Meta. Mi'tatihia*. Male— 3 4J 5 8^ Female.— 2J 4 4} ¥ 172 BULLETIN 03, UNITED STATES NATIONAL MUSEUM. ELEODES FUSIFORMIS LeConte. E'leodcs fiisiforiiiis LkContk, IM-oc Acad. Nat.Sci. Piflla.. IS'iS. p. 1S4. — Horn, Trans. Anicr. I'liil. Soc. XI\', ISTO. \t. 31,s. Fiisiforni, body narrowing quite evenly both ways, .smooth and more or less shining. Head more or less feebly convex, smooth, usually without impres- sions, frontal suture distinct, finely and not densely punctate, punc- tures very sparse over the vertex. AnteniKt^ rather long, slightly compressed and incrassate in outer four joints, third joint not quite as long as the next two taken together, fourth to the eighth inclusive subequal, eighth feebly triangular, ninth and tenth very feebly trans- versely orbicular, eleventh short ovate. Fronotiini trapezoidal widest at the ba.se where it is about one- half wider than the apex; disc more or less moderately convex from side to side, laterally slightly arcuately declivous, very finely, sparsely and indistinctly punctulate; apex moderately and evenly emarginate and more or less obsoletely margined ; sides converging anteriorly, not strongly but evenly arcuate, finely margined ; base quite broadly rounded, and more or less distinctly margined: apical angles quite prominent anteriorly and subacute, sometimes feebly rounded; basal angles obtuse and more or less rounded. Propleura- quite .smooth, obsoletely punctate, and more or less rugulose. Elytra ovate to oval, widest at or a little in advance of the middle; base broadly emarginate with the humeral angles clasping the basal angles of the prothorax, slightly wider than the contiguous base of the same; humeri more or less acute and anteriorly prominent; sides evenly arcuate, apex not produced but rather narrowly rounded; disc more or less feebly convex on the dorsum, rather narrowly rounded at the sides but not suddenly inflexed, arcuately declivous posteriorly; inflexed sides quite plane and oblique; surface subseriately punctate, the series quite closely placed and at times quite distinct, intervals with a single .series of more distantly spaced, at times irregularly ar- ranged punctures, the serial pimctures usually slightly larger than the interstitial. Often they are subequal and more or less confused, and always more or less so laterally and on apex. Kpiphnnuv on the same plane as the inflexed sides of the elytral disc, moderately wide and gradually narrowing from base to apex; surface smooth, finely and sparsely punctate. Sterna somewhat glabrous, more or less obsoletely punctate and rugulose. Paraph'\ira (piite coarsely and more or less oljsoletely punctate. Abdomen glabrous and shining, finely and sparsely punctate with the intercoxal process more coarsely sculptured. REVISION OF tILEODIIM HLAISDKLL. 173 Legs rathor l(»Il;L^ (Ik- niitfiioi- comijaiativcly >li<»rt : antfiior fciuoia iniitic; antcrioi- ^piirs of the aiitciioi- (iliiir and (lie aiitciioi- tarsi are tlissiinilaV in the si'xcs. Mttle. — Katlifi' i^ and sli the middle of the dorsal plate, finely and more or less regularly longitudinally rugulose. Ventrolateral surfaces are evenly and moderately convex, glabrous. The submarginal grooves are very broad beneath the explanate ex- ternal borders of the dorsal plates. Each curves inward around to the inner lobe of the apex, so that the apical margin appears explanate when viewed from below ; surface very sparsely punctate and setose ; genital fissure very narrowly fusiform. Hahitat. — Texas. Specimens without di'finite locality labels and collected by C. V. Riley, others by Hubbard and Schwarz are the largest in the series before me. One specimen from Dallas is also large and well developed. A pair collected in Bexar County by Charles Drury agree in size with other examples from this State. Many years ago I received similar specimens that were collected in Bosque County by G. AV. Belfrage. — Wyoming. Specimens taken at Cheyenne by 11. Soltau are the smallest specimens before me. Two specimens with indistinct labels, but apparently from this locality, are larger and moderate in size. Dr. George Horn stated that this species is never very abundant, and also as occurring on the plains of Nebraska and southward into New Mexico. — Kansas (Wallace- "\V. Knaus). Professor AVickhanV. in his '* T^ist of the Coleoptera of Colorado," writes that it occurs at Bellevue, and at La Junta on authority of Bowditch. Number of specimens studied. 24. The type in the LeConte collection bears a green disc label, and was probably collected in Colorado, in the Platte River Valley, near Fort Laramie. Salient tiipe-eharaeters. — Fusiform. Thorax trapezoidal, narrow- ing anteriorly; posterior angles rounded with the base; anterior angles acute; disc finely punctate. Elytra with base omarginate, clasping the base of the prothorax; humeri anteriorly produced; disc rather densely subseriately punctate. Antenna^ slightly incras- sate. Prosternum produced (LeConte). Diagnostic charaeters. — Distinguished from all of the other species of the subgenus — except opaca — by the mutic anterior femora. From REVISION OF KLKODIINl I'.I.AISDKM.. 175 opacd it is r('c<)«;iiizt'(I hy tlu' l)ljicU aiitl >liiiiiii<^ >iirf;icc. Ix'inir iicitlicr o|)jK|ue nor pubescent as in that species. Tlie elytral punctuation is rather fine and closely Mihsci'iate. In the hir«re si)cciincns with distinct and ch)sely j)laced series of punc- tures an approach is nnide toward xtriolata. (See p. 171.) Rilationsh'tp.s. — It would he veiv interesting; to determine if, in a very large series of specimens collected fi'om all parts of its dis- tributional area, any e.\am|)les of fnsiforinis coidd be found with a tendency to havin«r the anterior femora siiniate or feebly dentate, these charactei's with any tendency to sli<;ht proloniration of the elylral apices would show a (ran.sition into fifiwlafa. I e.xpect this. (rs(ir(iti<>ii.s. — The nientnm is variable. Fsually sul)tri- an<;ular with the ajx'.x moi'e or less rounded, and at times sliirhtly transverse witii the anterior mai'Ldn arcuately roumled froni side toside; the surface may be lonla>. Male.— 2i 3S 45 (> Tenia le.—2i 3s 5 15 ELEODES OPACA Say. Blttits opiirii Say. .Tonrn. .Voatl. .\nt. Sri. riiila.. III. is^l. p. 2^2. EU'oiUx opiira LkContk. Proc. Acad. Nat. Sci. I'liila.. lsr>.S. p. 1S2: Cliissif. C'oltHtpt. Nortli Anier.. 1S«>1. p. "JL't; tl'mmuK). — Horn. 'I'niiis. .\iium-. riiii. s«K-.. XIV. 1S70, p. :ns. Fusiform oval, black, opa(pie, liiirf olilon^. evenly eonvex, with tlio sides more or less arcuiite. A/>/(i)ly sinuate (o apex, the latti'r acute; ba-e rather broadly lobeurface feebly con- vex, -lopinu: inward from the middle to the sinus, frlabrous in l)asal and external third, elsewhere punctate and setose; punctures and hairs sj)ar>ely placed, the latter rather lon^. Sinus narrow and closed by membrane: the latter may be more or less seto-e. Fcniiilr.- — (Jenital se«^ment quadrate in outline, rather short, setose and not deflexed a|)ically. Valrnlii ( l*late 4. fiir. 4). — Dorsal plate more or less broadly obo- vate, with the internal third in apical half reflexed. impunctate. and glabrous: surface more or less obli(|ue in the outer two-thirds, and conse(|uenl!y rather concave, coarsely and sparsely punctate, seta- mod- erate in leuL^th and more or less flyinU— Bull. IkJ— O'J 12 178 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Bruner; Dodge County, Coll. F. K. Blaisdell) ; Southern Dakota (Alexandria; Volga, Coll. E. C. Van Dyke) ; Kansas ((lOve County, 2,500 feet. F. H. Snow, AViirren Knaus. IIul)l)ard and Sohwarz; Plains, Dr. (Jeorge Horn) : Colorado (Dr. (Jeorge Horn: Trinidad; Colorado Springs, F. H. Snow: West Las Animas, H. F. Wickham). Number of specimens studied, 38. Type not in existence. Type-locdUfy as given by Say is Missouri and Arkansas. Sdticnf ti/i>('- inwardly aKenuate, the anterior -caieely ivachinir the femoral l)a>e. while th<»>e «d" the nieso- and nietafeuiora seai-cely attain a sli«j:ht di>tance heyond the middle. The external surfaces of the tihia' are rounded and more or less obsoletely flattenecl aj)ically. Anteiior tar>i >liirhtly ^touter in the male than in the female. Tarsal formula : I'm. M.sc. Mrta. .M.'tatil)ia'. .Male.— •-' -Ss 3 4i Female.— 2 2n Sn 5 Subgenus HETEROPROMTJS. new. Anterior ftMiiora mutic Tai>i .--lender and s|)inulose beneath: the anterior of the male not dilated nor thickened, and with a >mall transverse tuft of frohlen pubescence on the ventro-apical mar^rins of the first and second joints. Anterior spurs of the anterior tibia* thicker than the posterior. Siihr/cncric (/cnitaJ chdrdcters. male. — Apicale of the edeajrophore trianistrihiit'ion.—T\\\\s far the single species of this subgenii> is oidy known from southeastern Texas — from counties bordering on the Gulf of Mexico. R(hit'io)ishij)K. — Vrtcrafor appears to be (|uit<' isolated in the tribe Eleodiini. in fact in many respects might l3e considered as constituting a distinct genus. It only resembles Prom its (o/xiro) in external facies and no way suggests to my mind any conception of its ancestral origin. ELEODES VETERATOR Horn. Hh'Hh.'i rrlrniliir Horn. Trans, .\iner. Kiit. S«.s'c s(|uare]y truncate, very finely margined and slightly over-lapping the elj'tral base; apical angles slightly prominent anteriorly and subacute; basal angles subrectangular and rather narrowly rounded. Fi'o pleura' very finely, sparsely punctulate, pubescent, and rugu- lose: broadly and moderately excavated beneath and internally to the basal angles. Elytra triangularly shield-shaped, squarely truncate at base and slightly widei- than the contiguous prothoracic base: humeri nar- rowly rounded: sides evenly arcuate and gradually converging to apex, and from the base regularly continuing the curve of the sides of the pronotum: ape.r obtuse and not produced: dise feebly ccmvex, quite suddenly deflexed at the sides with margin narrowly rounded, but acute in basal third, evenly and strongly arcuately declivous pos- teriorly: finely, evenly, and not densely punctulate and pubescent, the pubescence arranged so that the surface appears substriate: in- flexed sides plane. Epipleura' rather narrow and feebly dilated at base beneath the humeri, very gradually narrowing from base to apex: surface finely punctate and-spar.sely pubescent. Sterna rather den.sely punctate and feebly shining; prosternum obsoletely punctate anteriorly. Parapleiira' very finely and sparsely punctate. Abdomen distinctly horizontal in the sexes, glabrous and .shining, quite coarsely and densely punctate on the first segment, the punc- tures becoming finer and less dense on the succeeding segments, rather strongly and evenly convex from side to side. Legs rather small and .slender: femora niutic, and finely, sparsely l^unctate; tibia- straight: antei'ior til)ial s|)urs slightly une<|ual in length and stoutness, the intei'ual spurs of the uieso- and metatibia* a little longer than the external: tarsi feebly dissimilar in the sexes. Midi. — Feebly elongate oval. AiUcnna' reaching to about the posterior fifth of the pronotum; elytra widest at the base, sides HF.VISION iW KIJ-.ODIINI HLAISDKLL. 181 not i<'(';il)l\ (•((iiNcr^iiiiT (t'\. 1 iilcnoMil idoccss of the ahdo- nii'ii (hi(t('iH'cTnt and not in the least carinate. The tarsi are skMuh'r anil ajjjjarently slitr|i(ly conipresM'd. A protarsus is about one-third of its length shorter than a ineso- tarsus; joints small, the first distinctly lar<;er and lon^irer than the second, the latter about as lon^ as wide; the third just sli«rhtly shorter, and the fourth still smaller, both slightly widn- than l<)ii«r- In the female the first joint is less robust. The mesotarsi are about one-fourth of their length shorter than a njetatarsus; the first joint of each is about as long as the third and fourth taken together; the second a little longer than wide, and the third and fourth about as wide as long, each gradually and slightly decreasing in size and length in the order mentioned. The metatarsi are about one-fifth of their length shorter than their metatibia-; first joint of each is just slightly longer than the next two taken together, the second distinctly longer than tiie third, the latter a little luori' than half as long as the fourth. Subgenus ELEODES Eschscholtz. In the present subgenus the species have the anterior femora more or less dentate in one or l>oth sexes; the t(^oth are abortive in candlfvitt and loiK/ipilosd. The anterior tarsi of both sexes are simply spinous beneath, or at the most the first joint nuiy Ijear a small tuft of modified spinules in one or both sexes, and the first one or two joints an' never dilated in (he male, although in a few species the first joint may be thickened at aj)ex beneath. The inteiiial spurs of the meso- and metatibije are longer than the external. For the positive recognition of the constituents of this subgeiui> the female genital characters must i)e relied uj)on. The male genitalia have undergone but little dirt'erentiation along the lines of specific sjiecialization and are valueless for the diagnosis of species. They niay i)e enumerated as follows: Sifh(/r/u'ilr t/i iiift/I cJutiutrtciK. iHdli . — Apicale of the edeagophore distinctly longer than wide: dorsal surface modeiatejy convex, with a more or less complete membranous median groove, which at time- is strongly developed, at others f«'ebly so; apex acute ami not dis- tinctly attenuate(l: base distinctly lobed at the middle. Female. — Geuitnl aegmevt more or less trapezoidal in outline ami robust, conspicuously setose in a|)i ; the inferior surface of the cauda being formed by the general internal surface of the elytra. Such species are glabrous and more or less shining and never ilistinctly as])erately sculptured. OBSCURA Group. This group may be characterized by having the first joint of the protarsi distinctly thickened at ai)ex beneath, and l)earing a tuft of modified spinules upon the same. In the males the protibial spurs are somewhat equal in size, although the posterior uuiy be slightly longer than the anterior ; in the female the posterior spur is more or less thickened and distinctly louger, and iu both sexes the spurs are decidedly divergent. The constituents of this group are among the largest of our species. The articular cavities of the tibia' are ojien and coutiiuu)US with the tarsal grooves of the same. The middle lobe of the mentum and the. exposed surfaces of the basal divisions of the maxillary palpi are more strongly and conspicuously setose than iu any other sjiecies known to me. The head appears to be comjiai-atively h)ng, and the abdoiiu'u is more or less distinctly obli(]ue in the male. lU'A'ISloN OK I.I,i;<>l)IINI lU.AISDKI.L. 185 Tiio ffroiij) «;t'iiitiil cliiiractci's arc as follow >: Malt'. — Aj)ical(' of (lie ('(l('a«roi)lioi"(' ti"iaii<;iilar. dorsal surface mod- erately convex, with a median loii^itiidiiial linear <;r<)<)ve, and the })ase has a i-onndcd lohc at middle. SU'rnite with an interlobar circu- lar membranous area. Fenidle. — Dorsal plate canaliculate, sides rofle.xed and retracted, submar'rinal fjroove completely visible from above; apex but slij^btly Ion«;er than the appenda«r«'. the latter short and «'onic; superior pu- dendal membrane not lon«;itudiiuilly rul»lirins rounded obscinn. Elytral niarjiins acute at humeri aiiiUt. Thorax tlat or concave. Elytral margin acute thronu'liiiut fiiitiinilis. The <^enital characters appear to present the following specific differences. The males as usual present no distinct ditierential char- acters. Fcmalr. — Internal lobe of apex well developed. (Jenitnl scfrment trapezoidal in outline, robust; ba.''al |irominences well develoi»ed. Apical marjiin of the dorsal i>late rounded. Apical margin evenly rounded ubscuni. Apical margin rounded externally and obliipie within sutiiralis. Apical margin truncate. Apical angle subre<'tangular acuta. \ linear arrangement of our species may be given as follows: (1i!tprr.i>|H'iv,i. DiiKciifH. Sniripennls. TfXUH Tl-XllM New Mi'x- Nfw Mt'x- Nt'W Mcx- iro. ico. Arizona Arizona. , Kan8a»< Kanwia .... KansaH . . . . ' Oklahoma . . Oklahoma Colorado ... Colorado .. Colorado .. Colorado ..' Colorado .. I rtah. -Nevatla. Northern Cali- fornia. Oregon .... Orej,'iin. I \Va.«hington. I Idaho. Wyoming . Nebraska I Dakota Dakota I • h will 1)0 si'on that aitturnlis inhabits the moro central and north- eastern part of the region west of the Mississippi Kivir; texana. the southern and southern central; (niita, probably the same, like tixaiKi: dinpersn, central and more southern western: ohscn-a. central and t() the northwest, western and northwestern, and probably none are foinid west of the Sierra Nevada Mountains. Suhijxniit.s extends southward into Sonora. Me.xico (Morrison), and is prol)ably tiie most widely dispersed member of the group, while dispersa is the least widely distributt'd. ELEODES OBSCURA Say. Rliilts iib.siuni Say. .Toiini. .Vend. Nat. Sci. I'liila.. III. isj;;, p. L'."»;>; Amer. Kntoniojofiy. I, isii4. i». ."{•_'. pi. xvi. tig. .'i. — LkConte. Complt'te Writ- ings of Th. Say, I. ls.-)5). p. :V2. Eleodes obscurn Say. Troc. Acad. Nat. Sci. Phila., 1858, p. 181. — Horn, Trans. Amer. Phil. Soe.. XH'. 1870. p. .SOG. Etrodcs (lisitcrsa LkContk. Troc. .Vend. Nat. Sci. IMiiia.. i>. ls2. — IIokn, Trans. Amer. Thil. Soe.. XIV, 187t>. p. .'ior.. lUviKlrs ihlrtd I.kContk. I'nu-. Acad. Nat. Sii. I'liila., ls."(S, p. 1S2. — IIoKN, Trans. Amer. Phil. Soe.. XIV, 1S7o. p. .*?u.-,. Eleoilis siilciiK nnis Mannkriiki.m, Hull. Soi-. Nat. Moscow. X\l. is{;}, p. 2GG: Mag. Zool., XIII, 184:{. No. 128 ( Hg.).— LkContk. PnK\ Acad. Nat. Sci. Phila.. IS.'VS. p. ISL'.— Horn. Trans. Amer. Phil. Sw.. XIV. 1870. p. 30(i.— Champio.n. lUol. ("entr. Amer.. 1\ . I'l. 1, 1.SS4. p. 71>. EUtxhs arata LkContk. Proc. .\cad. Nat. Sci. I'liila.. is."»8. p. IS'J. Hokn. Trans. Amer. Phil. S<.c.. XIV. 1S70. p. ;KH;. 188 BULLETIN 03, UNITED STATES NATIONAL MUSEUM. Black or brownish, oblong, elongate. Head slightly more than one-half as wide as^the pronotum at middle, and slightly less than twice as wide as long: usually more or less convex; rather opaque, and coarsely, irregularly punctured, fre- quently with impunctate areas at middle; laterally densely punctate. Antenna' moderate, reaching nearly to the prothoracic base; outer four joints just noticeably compressed, gradually and very slightly dilated, third joint scarcely as long as the next two taken together; fourth slightly longer than the fifth, the latter to the seventh, inclusive, subequal and longer than wide; eighth subtriangular and about as wide as long; ninth and tenth suborbicular; eleventh ovate. Pronotinn shining or somewhat opaque, about one-fifth wider than long; disc evenly and more or less convex, generally declivous at the apical angles, glabrous, finely, sparsely, and irregularly punctate, punctures becoming denser and coarse along the sides; apex truncate or feebly emarginate, rather coarsely or more or less obsoletely mar- gined ; sides evenly and rather broadly arcuate to the posterior fourth, thence feebly sinuate or oblique to the basal angles, marginal bead moderately coarse and narrowly reflexed ; base feebly arcuate, fre- ({uently slightly sinuate at middle, rather coarsely beaded and about one-sixth wider than the apex; apical angles obtuse: basal angles dis- tinct, more or less rectangular, sometimes very narrowly rounded. Propleimv impunctate and rugutose; frequently sparsely punctate centrally. Elytra oblong to oblong-oval about twice as long as wide; base scarcely emarginate, scarcely to slightly wider than the contiguous prothoracic base; Jmmeri slightly prominent and obtuse; sides evenly and not strongly arcuate, apex not produced and rounded; disc generally widest at or frequently behind the middle, more or less de- pressed and convex, laterally always more or less broadly rounded throughout, rather suddenly declivous posteriorly; surface more or less striate and sulcate. more or less irregularly, muricately punctured. Epipleurep, steima^ and parapleural more or less obsoletely and rather densely punctate, rugulose. The epipleurae are moderate in width and not more suddenly widened beneath the humeri. Abdomen fijiely and more or less obsoletely punctate, rugulose; fifth segment more densely punctate. Legs moderately long and quite stout; anterior femora armed in the sexes; anterior tarsi with the first joint (Plate S. figs. 8 and 0) thickened and slightly produced at apex beneath, groove obliterated, the produced tip bearijig a tuft of more or less golden (fresh speci- mens) modified spinules; other joints with the plantar groove entire, with the usual apico-ventral tufts of spinules separated by the groove; similar in the sexes. HKVISION OF ELEODIINI BLAISDKLL. 189 Male. — Elongate oblong, ^(lnlt'\vll:lt nanctw. Antenna' reaching to basal margins of the j)i<)thoiax ; elytra oeca>ionally with sides par- allel or moderately areuale, ilorsnm more or less distinctly depressed and quite snddenly obliquely declivous posteriorly. Abdomen nunler- ately convex from side to side, broadly and more or less strojigly im- pres.sed on segments one and two. obli(iue. Anterior femora armed with a strong, moderately acute tooth; tibial spurs similar; the an- terior about ('<|iial. ratiifi" stout and (•(»ii\('\o-conca\ c in transverse .section. Female. — Elongate oval, robust. Antenna' reaching to the ])os- terior fourth of the pronotinn. Elytra rather itroadly oval, nearly vertically declivous posteriorly; dorsum moderately conve.v. Abdomen horizontal, evenly and strongly convex from side to side. Anterior femora with an obtuse tooth, sometimes reduced to a mere sinuation; protibial spui-s dissiniilar (Plate 8, fig. 14), the posterior spur broader, more robust, obtuse, and a little longer than the anterior. Genital chdrnetei's., male. — Edeagophore elongately ol)long-()vate. Ba.'lacod punctures, intervals flat and quite densely, very irregularly and nniricately punctured. Measurements. — Males: Length, 25-38 mm.; width. 9. -2-11. 5 mm. Females: Length. 80-85 mm.: width. 12-14 nnn. ELEODES OBSCURA Say (typical variety). Elytra feebly sulcate, intervals not strongly convex, sparsely, mui'icately })unctate. Ya\c\\ stria with a series of closely placed feebly niuricate i)unctures: intervals with a series of more distantly spaced and slightly more muricate i)unctures. Frequently the sculpturing is denser, always more strongly and irregularly so later- ally and on apex. Measurements. — Males: Length, 2(5-80 nnn.: width, 10.2-11.8 mm. Females: Length. 25-81 nnn.: Avidtli. 10.,")-18.2 mm. ELEODES OBSCURA var. SULCIPENNIS Mannerheim. Elytra strongly sulcate: intervals quite strongly convex, smooth, with a single series of irregularly, distantly si)aced, feebly muricate punctures, which l>ec<)ine decidedly nniricate on the ai)ical declivitv: sulci about equal in width to the intervals, with closely placed nuiricate punctures which becouie uiore densely j)laced toward apex; inflexed sides of the elytra obsoletely sulcate and irregularly muri- cately punctured. RKVISION OF KI.KnltllNI-IiLAISDKLL. 1 'J 1 Measurfynrtifs. — Males: L»Mi ^1.."") imn.: widtli. lO.-J-ll..") mm. Femah's: Ijoiiirtli, '24-38.r» mm.: widtli. 8.5-18.8 mm. The f()II()\vin<^ varietal j^t'iiital cliaractors may lu' corn-lattMl with the above forms of elytral sciilptiiriiifr. and altlioiiirh they are not ahvay.s as clearly defined, yet they seem to he siiflieiently so as to war- rant their heinfj recorded. nisjHrxd. — (ieiiital sc«;mcnt ratluT elonpite. and ^iMierally more stronllection. Ty/H-hu (il'itii. — •' Crt'fk Boundary:"* collected by Doctor A\'ood- house (I^eConte). ^iiUi'ttt fi/pi'rhara are very densely muricate. Each i)rotibia is moderately compressed and quite strongly carinate externally in basal half, where it is also more or less arcuate; the carina is smooth and at the middle of the protibia becomes the anterior boundary of the tarsal groove, where it also becomes nniricate to the aj)ex. The tarsal groove is quite strongly defined and its floor is glabrous and impunctate, open- REVISION OK KLEOmiXI — HLAISDELL. 193 in*; at apox into tlif articular cavity, the iiiar«j:ins of which bocomc continuous with tlic sides of tlie groove. Each nicsotihia may hv very briefly carinate at base oxtcrnally ; the external surface is (piite en. The floor of the groove is (|iiite glabrous. The nietatibia' are obsoletely carinate at base externally and also with the tarsal grooves running nearly the whole length; each groove is rather shallow and not suddenly formed, densely muricate and continuous with the articular cavity. The tarsi are robust. The protarsi are about a fourth of their length shorter than a mesotarsus. The first joint is about one and a half times longer than wide: the second, third, and fourth joints are subequal in size and length, wider than h)ng, and together about equal to the fifth. Each mesotarsus is about a third of its length shorter than a meta- tarsus. The first and fifth joints are quite equal in length; the second, thinl, and fourth are subequal, just visibly longer than wide, and together longer than the fifth. The metatarsi are about a half of their length shorter than a nietatibia; second and third joints subequal and distinctly longer than wide and together about equal to the fourth, the latter about equal to the first. ELEODES OBSCURA Say. Xuml)er of specimens studied, 80. Type, destroyed. J\t//>r-/()(HKfxa appears to have the most pronounced form of sculpturing, not including the elytral sulci. ELEODES ACUTA Say. lilaps acuta Say, Journ. Acad. Nat. Sci. I'hila., Ill, 1823, p. 25S; Amer, Entoiuoloj^', I, 1S24, p. 31, pi. i, fig. 1. — LeConte, Complete Writings of Thomas Say. I. lS;.-.0. p. 31. Elcodcs acuta LeConte. Proc. Acad. N;it. Sci. Phila., lSi58, p. 181. — Horn, Trans. Anier. I'lnl. Soc. XIV, 1S70, p. 30G. Black, elongate oblong, dejjressed dorsally, usually more or less reddish along tiu- suture. Head nearly twice as wide as long, and a little less than one-half as wide as tin' pronotum at middle, feebly convex and more or le&s transversely impressed along the frontal suture, rather opacpie, mod- erately coarsely, irregularly, and dens(dy i)unctate. Antennw quite stout, not reaching to the j)roth()ra(ic base, outer four joints scarcely dilated or comi)ressed, the third about ecpial to the next two com- bined, fourth slightly longer than the fifth, the latter to the seventh inclusive, very slightly decreasing in length in the order named, the seventh just a little shorter than the fourth, eighth subtrianguhir and scarcely as wide as long, ninth and tenth subglobular, eleventh short ovate. I'roiiotiini usually widest at the middle and about three-eighths wider tlian long; disc more or less glabrous and shining, finely and >pars«'ly punctate, laterally more or less im|)ressei ()l»li(iiit'|y piodiict'il liciifiitli iilid clollu'd willi slioil pulx'scciKT ill tip, f( Mining'- ;iii iiciitc transverse tuft, groove a|)p:ir('iitly ohlitcratcd. M ( (isnniiiriit. — Miilts: Lcii^tli. 'js ;')."» iimi.; width, I.'i-IT) mm. FctiKihs: Lciiixt li. .'')0 ;{.'{ nun.; width. 1.'{.")-1(>.2 mm. (icnltitl tlnirdctcrs^ male. — Edea^ophore of the nsnal ol»h)ng-ovate form. Basale oblon moderately lonor and not extendinual; the 7 ; Amer. Kiitoinolojry, I. 1.S24, p. 30, pi. xvi, fig. 2. — LkConte, Coinplt'te Writings of Thomas Say, I, ls.-><). p. 30. KlvoiUs Kuturalis LkI'ontk. I'n>c. Acad. Nut. Sci. I'liila.. ls.")S, p. isi. — IIoKN, Trans. Amer. I'liil. Soc. XIV, 1S70. |». .3(m;. Var. tcmnn LkContk, Vvi^'. Acad. Nat. Sci. IMiila., ls."»s. p. Is2; in Thomson's Arcana Natnrir, III. IMW), p. 124. pi. xii. fig. r», female. — Horn, Trans. Amer. Phil. Soc., XIV, 1870, p. 3W; Trans. .\mer. I-^it. Soc., V, 1874, p. 34. Oblong, more or less strongly elongate, dorsum flattened and slightly concave, black, frequently with a broad reddish band along the elytral suture, epipleuru' often tingeil with the same color. 200 BULLETIN" 63, UNITED STATES NATIONAL MUSEUM, Head a little less than twice as wide as k)iig, and scarcely one-half as wide as the i^ronotum; surface j)lane to slightly (jpnvex, frequently more or less impressed along the frontal suture, sometimes trans- versely so between the eyes, and laterally within the moderately prominent sides of tlie frons, opaque, moderately, coarsely, irregu- larly, and densely punctate, usually with small impunctate areas. Antenna' rather stout, scarcely reaching the prothoracic base; outer four joints slightly compressed and just perceptibly dilated; third joint a])out ('(|ual to the next two ccTmbined; fourth, distinctly longer than the fifth; the latter to the seventh, inclusive, subequal and slightly longer than wide ; eighth, triangular and about as long as wide; ninth and tenth, suborbicular; eleventh, short ovate. Pronotum Avidest at the middle and about one-half wider than long; disc opaque, smooth, slightly convex, finely and sparsely punc- tate, with small impunctate areas about tlie center, frequently with irregular impressions ; laterally longitudinally impressed from within the apical angles to a very short distance in advance of the basal angles, terminating in feeble basal imi^ressions, the depressions are generally transversely rugulose; apex deeply emarginate and more or less obsoletely margined ; sides broadly and more or less strongly reflexed, evenly arcuate or sometimes very feebly and broadly angulate at middle, slightly sinuate in front of the basal angles, marginal bead moderately coarse; hase truncate and feebly trisinuate, dis- tinctly margined, tw'o-fifths to one-half wider than the apex; apical angles acute, subacuminate, prominent and more or less everted; basal angles rectangular. Propleuvd' opaque and smooth, very finely and sparsely to obso- letely, muricately punctate, more or less rugulose at times, and de- fined from the reflexed pronotal margin by a longitudinal concavity. Elytra obhmg, one-third to twice as long as wide and more or less opaque; hase feebly emarginate, and about equal to the contiguous prothoracic base; Jimnerl obtuse and not prominent, rounded be- neath the basal angles of the jjronotum; sides evenly arcuate to sub- parallel, apex scarcely to feebly produced; disc plane to slightly convex, very suddenly deflexed laterally, angle of deflexion forming an acute and moderately reflexed margin, which becomes obsolete a short distance before the apex, more or less suddenly obliquely de- clivous posteriorly; surface sulcate, intervals feebly convex, each with a single series of rather distantly placed punctures, the four inner sulci with but a single series of closely placed submuricate punctures, remaining sulci with numerous closely and irregularly placed punc- tures, which become denser and rather more strongly nuiricate toward margin; apical declivity somewhat more strongly sulcate and sca- brous; inflexed sides not convex, obsoletely sulcate, irregularlv and muricately punctured. REVISION OF KI.EOniTNT BI.AISDKI.I,. 201 E piplcnni iMotlt'iiitcly iniriow, iiii(iii:ilfly tliliitftl Ix-iicath (In* humeri, aiid <;r;itlii:ill\ ininowini,'' to iipcx; surface usually mioit oi* less <)l)s(>l('(('ly |)uiic(a(«'. Stcriut aud iKinipltnni uiorc or less obsolctcly or stroii;_fly imiictatc iuul rui^ulosc. AlxloiiK II (inrly and iiioi-c oi- less sparsely, ohsoletely j»uiiIINI — RLATSDELI.. 203 Vdlridii ( IMaU' 1. li;;. 2.'5). — Dorsal j)lat(' ohloii^', rather iiaiiow, sides str()i»«rly rofloxed, retracted externally; external border more or less ])i-oah()i-t. tip veiy Mnnt and not itromiiient. sjin^htly lon^rer than the a|)pen(lau-e. with .-|)arsely placed and shoiM setie. without jx'neil at tij). Sul)ni(if(/iii>l' I In- nanow sinn>. Frntdlc. — (icnital segment trianifiilo-l rapc/oidal. ratlit-r r()l)u>t, comparatively small and setose. Vdlrnhi (IMatf 1. liir. H). — Dorsal plate oblong, nifa((! broadly eoiuave. moie deei)ly so aloufj: the st roundly reflexcd inner side, s|)ai"sely punctate, each ])unctnre with a lon97SO— Bnll. a^— 09 14 210 BULLETIN 6:^, L^NITKI) STATES NATIONAL MUSEUM. Ill the series of exuiiiples before me tlie iiieiituiii is variable. Although large, it is moderate when taken in % comparative sense, varying from trapezoidal to quadrato- or i)arabolo-trapezoidal : apex truncate to evenly arcuate ; surface scarcely convex, strongly punctate and almost scabrous, feebly foveate at the basal angles. The prosternum is variable and strongly protuberant ventrally with the cox^e, being almost declivous from the anterior margin. It is usually longitudinally grooved between the coxie, rounded antero- posteriorly, and not mucronate behind, or with an abruptly developed mucro; at times convex between the coxa' and subtruncate behind. with a deflexed mucro. The mesosternum is arcuately or obliquely declivous and more or less strongly concave. The abdominal process is about a fourth of its width wider than the metasternal salient, subquadrate. and e(iual in length to the post- coxal portion of the first segment, which is also equal to the third, the latter one-sixth of its length shorter than the second ; the fourth is one-half of its length shorter than the second. ^letasternum laterally between the coxa) is about as long as the width of a mesotibia at apex. P^emora stout. The profemora are thickest at the junction of the outer and middle thirds, from that point gradually narrowing each way. Tibial grooves moderately large, edges rather thick, subcarini- form. very feebly arcuate, and converging to become contiguous a short distance before the base; floors very feebly concave, subopaque. and extremely, finely, and reticulately rugulose. Anterior margin dentately laminate at the outer fourth. Meso- and metafemora of nearly the same width throughout ; sides quite parallel. ]\Iesofeniora with the grooves moderate in width, margins feebly cariniform, converging very gradually to become evanescent a short distance from the base ; floors of the grooves scarcely concave, opaque as on the profemora. The metafemora have the grooves about moderate m width, Avitli the sides feebly cariniform, gradually converging to become evanes- cent at basal third: the floors are as on the profemora. The protibiic are slightly compressed, carinate in basal half exter- nally, with the tarsal grooves more or less feebly developed, asperate and limited posteriorly by a mui'icato-serrulate margin, articular cavities closed. Mesotibire more or less rounded, briefly or obsoletely carinate exter- nally just before the base; tarsal grooves simply indicated by a smooth opaque line, or feebly channeled surrounding surfaces muri- cate; articular cavities closed. KKVISION OF KLKODIINI MLAISDKLI.. '211 Tilt' iiiftMt il)i;i' itiiiiidt'tl, rather >iiiiill at liax' and ;_n'a(liially tliick- ciiiiiir (() aju'-x; taisal nfroovos obsolete or feel)ly indicated, articular cavil ies closed. Taisi rather I<>ii;j: aiul stoiil. The pfdlarsi are al»()iit a lil'th of theii- |eii<;th shorter than a ineso- tarsiis. .Joints two, tliree, and fonr e(|ual in h'n-t al)()Mt as lon^ as wide. Mesdtarsi just a little shorter than a metatarsus. Joints two, three, and four e<|ual in ien^tli, scarcely as lon^ as wi(h'. and to;r(>(her ahoiit e(iual to the leuiTth of the fifth; first joint a little lon<;er than wide. The metatarsi are al)out half as loni; as their metatihia. Joints two and three ecjual in len<^th and scarcely lon<^er than wide, and to«rether about as lon«; as the fourth; first joint about one-and-a- half times l()nle with rather fragile integu- ments, and, Kccondarihj, by a more decided character of s('uli)turing having been acquired along with an increased thickness of the exo- skeletal wall. In the former instance fovnin fi/pica and iti/pfa were evolved, the latter by increased ventricosity of the body ; in the latter Spcmsa Fig. 4. — Genkalo(;ic.\i, kiacu.v.m ok the I)K.\"TirK.S GkOLP, SKCTIuN .\. SfllCEMS Eleodes. REVISION OF EI.r.onilNI — IU-\ISI)i;i,L. 213 cai^e sriilpf/fis i(u)k on :i strniiirci' I'diiii of dytral -ciilpdiriii^'. rlotif/afn an «'l()n<;a((' foi'iii. iiiid /" 'v'.s I»y robustness and a less |)i-(tn(niiicf(I form of si'ulpturin^. ^'liis nu'tluxl (»r inliiitixcly worUin^'' out ami pi't'seiitin*; these gene- alo. Submarginal groove small and sometimes visible from above. Superior pudrinhil uwrnhranc readiing to about the middle of the dorsal plate and longitudinal rugulose. Ventrolateral surfaces. — Body transversely inflated and with tlu^ basal prominences modei'ate: (|uite strongly concave laterally and less so centrally in front of the a|)ices; (|uite strongly punctate in apical three-fourths, each puiictuic with a I'ather short semi-erect hair. rn-nital fissure iiKtdcrateh' narrow. 216 BULLETIN 03, UNITED STATES NATIONAL MUSEUM. Habitat. — New Mexico (Santa ¥C\ Hubbard and Schwarz; Cool- idge, Coll. E. C. Van Dyke; Aztec, April. Coll. C^F. Baker; High- rolls, June 11) ; Colorado (southern, (xeorge Horn) : Texas (Marfa, elevation 4,000-4,800 feet, and at Alpine, July, 4,400-0,000 feet, H. F. Wickham) ; Arizona (M. L. Linell). Number of specimens studied, 20. Type in the LeConte collection. Type-locality. — New Mexico; collected by ]\fr. Fendler. Salient type-characters. — Thorax a little convex and somewhat rounded, sparsely punctate, anteriorly broadly emarginate, apical angles subacuminate ; sides rounded; base subrotundate with the angles subrectangular. Elytra at apex obtusely acuminate; disc punctato-striate, laterally and at apex muricate, intervals sparsely uniseriately punctate (LeConte). Diagnostic characters. — Sponsa is to be separated from hispilahris by the elytra being feehly suhstrlute and with the intervals flat, rarely feebly convex and rather coarsely muricately punctate. In some specimens the interstitial punctures are in slightly larger dents and the sculpturing is not at all muricate but smooth. The thorax is usually less rounded on the sides and nearly quadrate, but there is considerable variation. The elytral sculpturing sometimes resembles specimens of hispil- ahris which have the intervals scarcely convex. In a complete series the transition from the one species to the other is evident. In sponsa the elytral disc is usually flattened. LeConte mentioned a specimen collected in New Mexico that had the elytra not at all muricate. The mentum is variable. In size it may be comparatively large or small, varying in outline from parabolo-trapezoidal, trapezoidal to trapezoido-triangular. rarely the apex is subacute; surface coarsely punctate to almost impunctate, evenly ccmvex or more or less foveate laterally. The prosternum and mesosternum as in hispilahris ; the latter is sometimes quite vertical and deeply concave at middle. The abdominal process is about as wide as the third segment is long, the post-coxal part of the first is shorter than the second seg- ment, and the latter is twice as long as the fourth ; the third is about one-fourth of its length shorter than the second. The abdominal salient is but slightly wider tlian (lie metasternal process. The metasternum laterally between the coxa* is scarcely as long as the width of a mesofemur at base. The tibia' and femora are aliout the same as in hispilahris. The articuhiK cavities of the tibiie are very narrowly open as a rule or closed. REVISION <>•!•' KI-KODIINl — m.AISDF.M., 217 Till' t.ir^i lire HKMlciatc. iiiorf >lt'iiilt'i' in tlir Miiiillcr iiitli\i. 12.".!); Anier. Knt«>im>l:.v. I, 1SJ4, p. .'{2. — LkContk, Coini'lete Writings of Tlirmias Say. 1, isr.lt, it. :i2. EIcodcK ltis])ilahri!< Li;( 'onti:. ("(Hiiplete \Viitiii;;s of 'riioiiias Say. M. is.'iK, p. ir»2. — IIoKN, Trans. Aiiier. I'liil. Soc, ^..vIV, isTo, p. :n.'5. — CuAxt- PioN, r.iol. (Vntr.-Aiiier.. IV, I't. 1, 1S.S4, p. 7!>. EleodCK siilidlit LkC'onti:. I'roc Acad. Nat. Sci. riiUa., l.s,-,2. p. ('.7: 1S58, p. ISl. Elcodes lecontci (iKMMiNUER, Coleopt. Ilefte, VI, 1870, p. 122 (new name). Elcodrn ciiiincra I.kConti:, Kejiorts of Explor. and Snrvey, . . . 47tli and 40th parallel, XII, I't. .3, l.s-,7, p. 4!). EU'txJts iniiila LkContk. I'roc. Acad. Nat. Sci. I'liila., Is.'iS, p. is;{. Eh'odvs coniposilus Casey, Annals N. Y. Acad. Sci., VI, Nov., 1891, i). TiS. Elongate ovate, somewhat shining, more or less convex and sulcate; color black, fre(]uently reddish along the suture. Ili'titf al)()ut twice as wide as long, feebly convex, finely and not densely punctate, feebly impressed laterally. Antcnmv long, mod- erate in stoutness, reaching to the prothoracic base, outer four joints slightly compressed and noticeably dilated; third joint e(|ual in length to the fourth and fifth combined, fourth a little longer than the fifth, the latter, sixth, and seventh subequal, eighth eijuilaterally triangular in outline, ninth and tenth transversely oval, eleventh irregularly ovate to subtrapezoidal. Pi'otiotum widest at about the middle, about one-fifth to less than one-third wider than long, and less than twice as wide as the head; disc smooth and more or less shining, quite evenly and moderately convex, more or less declivous at the apical angles, finely, sparsely, and quite evenly punctate, very narr»)wly ojiacpie and gramdate later- ally; (ipcr more or less feebly and broadly emarginatt', finely beaded laterally and obsoletely so at middle; x'ldcs broadly ami evenly arcuate anteiiorly. converging and more or less straight ])osterioily. or slightly sinuate before the basal angles, finely to rather coarsely 218 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. beaded, and very narrowly or more or less reflexed ; hase feebly arcu- ate and more strongly margined, a little wider th^n the apex and equal to the length; apical angles acute and more or less everted; basal angles obtuse. Propleurce smooth, more or less rugulose and nearly impunctate. Elytra oval, sulcate, usually less than twice as long as v\'ide, widest at the middle; hase very feebly emarginate, usually very little wider than the contiguous prothoracic base; humeii obtuse and not promi- nent ; sides evenly arcuate, apex more or less acute and usually very slightly produced ; disc more or less convex, frequently depressed, and more or less suddenly obliquely declivous posteriorly ; surface usually deeply sulcate, sulci deep and about as wide as the intervals, each with a series of more or less evenly and closely j^laced, small asperate punctures ; the intervals are more or less strongly convex, smooth and shining, each with a single irregular series of distantly placed punc- tures. The deflexed sides are more coarsely, irregularly punctate and subsulcate. Epipleura' moderate in width, gradually narrowing from base to apex, where they may be feebly dilated beneath the elytral apices and sightly excavated at that point; surface smooth, frequently im- punctate, at other times very sparsely and finely j)nnctnlate. Sterna moderately punctate and rugulose. Parapleural usually quite smooth and sparsely but not deeply punctate. Ahdomeu horizontal, smooth, ver}^ finel}^ punctulate and rugulose; fifth segment more strongly punctate. Lc(/s somewhat slender. Anterior femora armed in the sexes; protibial spurs subequal, frequently the posterior appears to be just the least longer and stouter than the anterior. Tarsi grooved beneath and similar in the sexes. Male. — Somewhat narrow and elongate. Antennic reaching slightly beyond the base of the prothorax. Length of the pronotum slightly greater than the width of base and about one-fifth wider than long. Elytra arcuately and obliquely declivous posteriorly. Abdomen moderately convex from side to side. Anterior femora with a moderate and acute tooth at about the outer third. Female. — ^lore or less robust, and rather broad. Antenna' reach- ing to or slightly beyond the ]u-othorax. the latter with the base equal to the length and about one-third wider than long. Elytra rather suddenly and arcuately declivous posteriorly. Abdomen strongly convex. Anterior femora with a more or less obtuse tooth at about the outer third. Genital cliararfers, male. — P^deagophore of the usual oblong-ovate form and small. RKVTSION OK KI.KoliriNI — BI.AISDKLL. 21*J Iili()rt. not ,1 "ircill i(les feebly arcuate IVoni Itase t<» apex, the hitter snl)acute; hase rather acutely lohed at niiihlh' and seairely sinuate hiteially. Steruite transverse. Lobes ratlior small; each with the external border straiateral plate visible from above external to tlie dorsal plate, with submarginal groove between the two and more or less visible. Appenihuje depressed, more or less triangnlar and rounded at tip, not longer than the apical lobe; surface set with quite long setie. Superior pudcnddl numhrdnc reaching to al)out the middle of the dor.sal plate, and longitudinally rugulo.se. Ventrolateral surfaces. — Body rather strongly convex at base, not inflated, glabrous, more or less strongly and transversely concave before the apices; apical moiety sparsely punctate, with seta' rather long. Internal margins of the valves contiguous at base for a .short distance, (ienital fissure rather wide and fusiform, closed in basal half i)y the inferior pudendal membrane. Salient type-characters. — More or less shining. Elytra frequently more or less depres.sed, and somewhat narrowly lounded laterally, rre<|uently more or less reddish along the suture; sulci moderate in «lepth, intervals more or less convex. The apical angles of the pro- notum are acute and more less everted. Say's description is too brief as to the essential characters. The following incipient races or forms should be recognized: Forma typica. — See .salient type-characters. Mt (t.sinrnu nts. — Mahs: t^ength, *J()-*J .">.."► mm.: width, 8.5-10.r» mm. Females: Length, 18-28 mm.: width, 8.8-lJ mm. 220 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Number of specimens studied, 150. Type destroyed. p Type-locdTtfij. — " Inhabits Missouri,*' a badly defined geographical region in Say's da}'. Forma nupta LeConte. — Elytra with the dorsum slightly and the sides strongly convex (LoConte). The elytra arc more or less evenly convex from one epipleura to the other, usually somewhat inflated, sometimes quite strongl}' so. Some of the smaller examples are quite cychriform. Measurementfi. — Males: Length, 21-27 nun.; width, 9.5-11.2 mm. Females: Length, 19-29 mm.; width, 9.8-14 mm. Number of s|)ccimens stiulied. 15. Type in the LeConte collection. Type-locality. — Laredo to Ringgold Barracks, Texas. Forma sculptilis. — Integuments dull and rather thick. Head and thorax more or less shining. Klytra more or less convex, sulci usually opaque and deep, with the intervals strongly convex, shining and conspicuous, quite abruptly limiting the gi-ooves. Measurements. — Males: Length, 19-23 mm.; width, 7.8-8.5 mm. Females: Length, 19-24 mm.; width, 8-10 mm. Number of specimens studied, 40. Forma elongata. — General form distinctly elongate and narrower as compared to the other forms; black. Elytra are sulcate, but less strongly so than in sndptiUs; the intervals at times are feebly convex. The prothorax is noticeably larger and the legs stout. Measurements. — Males: Length, 26.5 mm.; width, 9 mm. Females: Length, 29 mm.; width, 10.2 mm. Number of specimens studied, 0. Forma conVexa LeConte. — Elongate, black and bright. Thorax moderately punctulate, sides rounded, anterior angles acute and slightly prominent; basal angles obtuse. Elytra elongate oval, in- tervals subconvex and rugo.se ; subacute posteriorly. Measurements. — Length, .9 ; width of el3'tra, .32 ; thorax, .23 (Le- Conte). Specimens not at hand. Type is in the LeConte collection. T y pc -local it y. — Prairie Paso, Texas; collector. Dr. Cooper. Forma laevis. — Robust, integuments decidedly' black, thick and alutaceous, also quite smooth. Thorax rather large. El^ytra usually evenly convex from side to side, sulci ver}' shallow, intervals very feebly convex, subobsoletely sculptured. Legs somewhat slender. Mcasurenicnts. — Males: Length. 23 mm.; Avidth, 8 mm. Females: Length, 23-20 mm.; width, 9.2-10 mm. Number of specimens studied, 8. HKVISIOX OK I'.LKODIIM- I'.I.AISDKLL, 221 The folldwiiijjf !^|><'<"i<'!^ ' (oloiicl ('iiscy t'\i(lciitly lM'l()ii«r.s lie IT : Forma composita Casey. ModcriUcly I'olnist. coiivi'x, intciix' l)l:ick throu^dioul, till' proiiotiim dull and .str()nerculiform. The above is Casey's original description. Measurements of the type. — Male: Length, i»> mm.; width, 0.0 mm. Unknown to me. Type; a imiqui in Colonel Ca.sey's collection. Tiipe-lo(-(dity. — Texas. Forma typica. — Ilahitat. — Missouri (Say), Colorado (August, C. \. Riley: Denver. April and June. Coll. II. Soltau; May, Colls. Dyar and Caudell; Colorado Springs. June, elevation O.UUO-7,000 feet, H. F. Wickham. In his List of the Coleoptera of Colorado, Pro- fessor Wickham give< the following localities, the forms are not differ- entiated : La Junta, West Las Aninuis, Canyon City, San Luis Valley. Fort Garland, Trinlilad, IloUy, Fort Collins). Kansas (collections of dias. Fuchs. C. V. Kiley, R II. Snow, and F. K. Plaisdell). Xew Mexico (Las Vegas, August, C\)lls. Barber autl Schwarz; Albuquenjue, Coll. E. C. Van Dyke). Texas (Mobeetee, October, Coll. H. S. Bar- 222 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. ber.) Oklalioiiiii (Fort Supply, Coll. 11. S. Barber.) Wvoiniiig (Cheyenne, June, Colls. Hubbard and Schwarz^ Nebraska (Sand Hills, Scpteiiilx'r, Coll. C. V. Kiley). Forma nupta. — Oklahoma (Fort Supply, Coll. II. S. Barker; Texas (Alice, E. A. Schwarz; Fort Creek, E. A. Mearns; San Diego, April and May, Hubbard and Schwarz; Goliad County, October, J. D. Mitchell). Forma sculptilis. — Arizona (AValnut, July, H. F. Wickham; Oracle, July, Coll. Hubbard and Schwarz: "Williams, May, Coll. Barber and Schwarz; Fort Grant, July, Coll. Hubbard and Schwarz; Ash Fork. June; Yuma, Chas. Fuchs). New Mexico (Las Vegas, August, Coll. Barber and Schwarz). Colorado (Denver, May, Coll. Dyar and Caudell). Utah (Salt Lake City, April, Coll. IL Soltauj. Cali- fornia (northeastern. Coll. Hubbard and Schwarz). Wyoming (Cheyenne, May, PL Soltau; June, Hubbard and Schwarz). Mon- tana (Helena, Maj^, Heniy Ulke, Hubbard and Schwarz). Mexico (Cananea, district of Arizpe, State of Sonera, elevation 4,500-6,000 feet. Dr. W. C.Alvarez). Forma elongata. — Arizona (Coll. Beverly Letcher, Prescott). Forma convexa. — Texas (Prairie Paso, Doctor Cooper). Forma laevis. — Utah (Salt Lake, Juno. Coll, Hubbard and Schwarz). State of "Washington (Walla Walla, Charles Fuchs). Diagnostic characters. — Hispilahris is recognized from the mem- bers of the Obscura Group b}^ the prominent dentiform apical angles of the prothorax and by the simple tarsi; from all species of the subgenus Eleodes by the more or less deeply sulcate elytra with con- vex intervals, and in never being caudate. I consider the typical form to have more or less depressed elytra, the latter with the intervals feebly to moderately convex and fre- quently reddish along the suture ; the integuments are generally thin- ner than in the other forms. The five incipient races which I have recognized are simply ex- tremes along particular lines of divergence in the ample series before me, and they are all united into one continuous scries by an abundance of mesotypes. They ought to be readily recognized by the brief diagnoses that I have given. Their salient characteristics may be epitomized as follows : Xupta with its strongly convex and more or less ventricose elytra. Integuments as in typical hispilahris. Sculptilis with the elytral intervals very strongly and prominently convex, with the sidci deep and opaque. Denser integuments. Elongata by its elongate and moderately convex form, elytral intervals more or less moderately convex. Black and denser integu- ments. IU:\'ISI(»N Ol' KI.KODIINI IJI.AISDKLL. 223 Con/c.ni hy its eloiij^atc ronii. l"Mv(r:i with miIxoiin ex and ni^osu intervals. Laris \\\ its i-olmst convex form; iiitcjinmciits IdacU and alnla- ceous; lai'j!^t' protiiorax and sonicwliat d'odc*! s<'ul|)tiii"in<;. Covipoaita Cascv lias cvidcnlly (ii«' clytral scid|)(Mrin/l(il>ris, except lliat it lias an aberrant pi-otliorax. I>nt liei-e tlie dillfrence is no j)roof that it is specifically distinct. Anal<) hall" as loii^r :i-^ !i luclalihia; in fonna Ifpris it is disliiiclly h'(. Aiilfiinn' icucliin^'^ -carccly to (lif protlio- racic base. Elytra soiiicwliat siiddfiily olil'mucly di'divous posteriorly and sinuate al base of apex. Cauda e(|ual to about one-eleventh of the entire elytra! l('n«rtli. Abdomen quite stron«;ly ventricosc to the fourth segment. Anterior femora ({uite mutic MedHurciiu'tifs tn'f/ioitf ng aj» the apex, blunt, and asperate in apical half, set with rather long seta', tuft at tip quite long. Superior pudendal membrane scarcely reaching one-third from the base. Ventrolateral surfaces. — Body moderately convex but not notice- ably intlated, slightly and transversely concave U'fore the a juices, finely punctate and set with veiy fine, short seta- in apical two-thirds. Submarginal groove obsolete. External margin of the dorsal plate not prominent laterally, (lenital fissure long and fusiform, with the inferior pud«'ndal membrane visible in basal half. Ilahitat. — New >h'\ic() (.Vztec, April, ('. V. HaUcr; C'oolidge, Coll. E. C. Van Dyke and Ilubbaid and Sliwarz: Santa Fe, C. V. Kiley; 228 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Luna, Hubbard and Schwarz) ; Arizona (Adamana, May, H. S. Bar- ber; Winslow, July, Coll, Barber and Schwarz: Ilc^brook, Coll. E. C. Van Dyke, Charles Fuchs, and Beverly Letcher) ; Colorado (Henry Ulke; Eastern, George Horn); Texas (El Paso, March, Coll. H. ,Soltau). Number of specimens studied, 40. Type in the LeConte collection. Type-locality. — Xew ISIexico; collector, Mr. Fendler. Salient type-charaetcrs. — Thorax scarcely convex, slightly punc- tate, laterally a little concave and transversely rugose; anteriorly broadly emarginate, apical angles not acuminate; sides strongly rounded, narrowed posteriorly ; posterior angles obtuse. Elytra slightly flattened, substriate with seriate punctures, intervals uni- seriatelv and sparsely punctate, at the sides and apex muricate, pos- teriorly obliquely declivous and prolonged. Anterior femora mutic (female) (LeConte). The following forms are before me : Forma glabra. — More or less shining and glabrous, not at all muri- cat, except on the cauda. Elytra striate, striae impressed, with quite coarse and closely placed punctures; intervals moderately convex, Avith a single series of small, distantly placed punctures. Legs quite slender. Cauda gradually narrowing from base to apex. Measurements. — Male: Length, 25 mm.: with cauda, 31 mm.; width, 9.5 mm. Female: Length, 20 mm.; with cauda, 22.5 mm.; width, 9 mm. Uahitat. — Texas (El Paso), Arizona. Forma sublaevis. — Subopa(|ue to feebly shining. Antenna* slender and rather long. P^l3^tra with series of unimpressed punctures; in- tervals flat with a series of distantly spaced punctures, which are as large as those of the strine. Sculpturing submuricate. Legs rather slender. Measurements. — Female: Length, 25 and 28 mm.; width, 10 mm. Ildh'/tat. — Arizona. Forma typica. — Sec salient t3q)e-characters. Forma scabra. — More or less shining. Elytra with unimpressed stria? of very closely placed and minute muricate tubercles: intervals with a single series of distantly placed and larger muricate tubercles, which become distinctly larger laterally and more tuberculiform. In- flexed sides of the elytra rugoso-muricate. The general surface is very minutel}^ rugulose. Size of forma typica. Legs rather short. Habitat. — New Mexico (Aztec). I)ta(/iu)stic characters. — Both sexes are caudate. Thorax widest just in advance of the middle; body not noticeably pubescent, tibia) and tarsi with long flying hairs. These characters serve to differen- tiate caudifera from sponsa, hispilahris, and longipilosa. REVISION <)l' KLF.ODIINM— HI.AISDKLI., 229 T)()c(<)r IIoiTi ill (he Kcvisioii I'nilcd to iiicnlion tli;il (he fciiiiilc was ClllKlillO. Forma glabra is a i-adior strikiiii; variation, on account of the siiiootli intciriinicnts and in liavin*; tlic caiula lonij>Icura' moderate in width and grailually narrowing from base to apex, where they dilate to form the inferior surface of the cauda; surface opaque and obsoletely punctulate. tSferfia more or less punctate and rugose, sparsely clothed with long brownish hairs. Parapleurw coarsely punctate and not noticeably pubescent. AJxlomfn horizontal and more or less ventricose in both sexes, quite closely punctate, most densely so on the first and fifth segments. Legs moderate in length and thickness, densely sculptured and clothed with long, flying, sparsely distributed hairs. Anterior femora mutic in both sexes; anterior tibial s])urs acute, subeciual, moderate in length, and more or less curved. Tarsi similar in the sexes. Male. — Somewhat narrower than the female. Antenna* reaching to the prothoracic base. P^lytra slightly narrowly oval. Abdomen XQvy feebly flattened on first two segments. Female. — Kather robust. Antenna* scarcely attaining the pro- thoracic base. Elytra quite broadly oval. Ai)domen strongly convex. Measurements without and with the cauda. — Males: I^ength, 1}> and 21.r>; 10..") and 22..") nun.: width, 7.2 nun. Females: Ijcngth, 10 and 21 : 20 and 22.2 nun.: width, S.2 nun. Genital chanirters, male. — Edeagophore of the usual oblong-ovate form, rather elongate, and scarcely arched. lia.stde rather short oblong, evenly convex; sides feebly arcuate. A/>i('(de I'longate. nearly as long as the basale, antl triangidar; surface quite evenly and moderately convex, with a narrow median and nu>re or less obsolete groove in basal two-fifths; sitles moderately arcuate in basal half, thence more or less sinuate to apex, the latter produced and acute, not deflexed ; base broadly rounded at middle, and more or less sinuate laterallv. 232 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Sternite quadrato-parabolic and slightly transverse. Lobes slightly elongate, each with the external border feebly sinijate in basal half, thence evenly and rather l)roadly arcuate to apex, the latter rounded; internal border membrano-chitinous and not well defined in basal half; surface more or less convex, from the middle gradually sloping to the sinus, rather coarsely punctate and setose ; seta? rather long at apex and moderately dense; membrane not setose across the bottom of the sinus ; the latter broad. Female. — Genital segment somewhat equilaterally triangular, slightly flattened, and setose. Valvula (Plate 4, fig. 23). — Dorsal plate oblong oval; sides more or less reflexed; surface more or less concave, smooth, and shining-: finely and sparsel}^ punctate, each puncture with a fine and rather short seta ; external margin more or less feebly arcuate ; apical margin feebly arcuate, angle scarcely evident; internal margin more or less arcuate, feebly sinuate in basal half; apex short, triangular, subacute at tip, and finely setose. Valvular membrane visible in apical half. Ap]>euda(/e about as long as the apex, conical, with a loose tuft of fine and not ver}' long hairs at tip. Superior pudendal membrane finely and not closely longitudinally rugulose, not quite attaining the middle of the dorsal plate. Ventrolateral sur^faces. — Body evenly but not strongly convex, and not transversely concave before the apex, shining and glabrous, finely, sparsely punctate and setose; submarginal groove obsolete; internal margins of the valves contiguous in basal fifth. Genital fissure long, fusiform, and rather wide, closed by the inferior puden- dal membrane in basal half, apically by the valvular membranes. Ualntat. — Nevada (Humboldt Valley, ]Mr. Krause), California (Amedee, Lassen County, July, elevation 4,200 feet., H. F. Wickham). Number of specimens studied, 16. Type in the Horn collection. Type-locality. — Humboldt Valley, Nevada; collector, Mr. Krause. Salient type-characters.— Clothed with long, black, flying hairs. Thorax about a fourth wider than long; sides arcuate in front, obliquely narrowed posteriorly; disc moderately convex, coarsely, sparsely, irregularly punctate; apex slightly emarginate, anterior angles subacute, but not everted. Elytra with disc feebly convex, very vaguely sulcate; surface irregularly. spai"sely muricate, the two grooves nearest the suture coarsely punctate. Elytra prolonged at tip in a cauda. (Male.) (Horn.) Diagnoxtir characters. — Remarkably distinct among its congeners on account of being clothed throughout with long black or brownish flying hairs; caudate in both sexes with the anterior femora obso- letelv dentate. UK.VlSIoX OK KI.r.oDIINl — BLAISDELL. 23.^ 'Ilic inciiduii is <|inl(' t r;i|)('/.t)i(l:il in (lie rciiialcs, aiul also i-allicr hi'oatl; (riaii^nil()-tra|)('/«ti(lal and Miiallci- in ih" ninlcs. Tlic sides ai'c more or less straiqua] in width to the len«;th of the post-coxal part of the same se<:^ment, and subquadrate. Tiic second st>jjinent is lon«r<'r than the post-coxal portion of the first; the third is half of its lenufth shorter than the second, and about twice as long as the fourth. The abdominal salient is a little wider than the metasternal inter- coxa 1 proi'css. The metasterninn lateially between the coxu' is as lonn^ as the width of a metafeinur at base. The tibial jji'i'ooves of the femora are not entire, their marfrins are distinct and erranular, their floors Hat and very sparsely «^raindate at the sides. On the j^rofemora the sides of the grooves become contiguous a short distance from the femoi'al base; on the meso- and metafemora they are somewhat contiguous near the middle, thenc«' to base the femora are rounded beneath. On the profemora the anterior margins of the grooves are not visibly laminate. The i^'otibiu' are (|uite distinctly carinate ext(>rnally ; the meso- and metatibia' are al.so in basal fourth externally; tarsal grooves on the protibia? evident, but feebly and coarsely sculptured; the grooves are less evident on the mesotibia* and densely sculptured; metatibia- (juite circular in transverse section and not grooved, coarsely scidptured. The protibia' are slightly compressed, with the articular cavities more or less feebly oi)en ; on the meso- and metatibia> the cavities are closed. The tarsi are moderate in length and rather stout, with joints rather closely articulated. The j)rotarsi are about a fifth of their length shorter than a meso- tarsus. .Joints two, three, and four rather short and subely arcnnto tliroiiL'lii:mii"i:s Croup, Section K, Sibgents Eleode.s. The recent derivatives of armata, are mil/faris and fcmorata by the modification of general form and slow atrophy of the femoral teeth; there are edentate forms derived from these species at the present time in Lower California, and two of them are before me. An example of this loss of the femoral teeth is our impofcn,'^. I have studied very instructive series of armata from Fresno and Merced counties. These series show all intermediate stages between a typical armata, and a tvpical dcntipes. These remarks are sufficient to indicate my ideas on this subject. Distrlhutiou. — The s])ecies of Section B are found inhabiting six States or regions: Mexico, Texas, New Mexico, Arizona, California, and Lower California. REVISION OF KLKODIIXI — BLAISDELL. Table i,f lUxtrihiili'in. 237 Arizona. gracilis ' Arizona. . I New Mex- Texas. .! Mexico ! ic<». var. di.itdim ' ; subci/lindridt »iil>j>iii.s is huUjiuulralt', ju.^l nolici'ably iran.^verse, aiitl ill w idtli alxHil ('(iiml to the length of the po^t-coxal portion of du' same seiriiiciil, and also to that of tho third; tlu' second segment is al»out a fouHh of its lenjjth h)n<;t'r than the third, tlie hitter is slifrhtly less than twice as lonp as the fonrth. The abdominal salient is al)out a lifth widei- ihan the nietasternal process. The metasternum laterally Ixtucen the coxa* is as long as the width of a niesofennir at base. The tibial grooves of the profeniora are rather broad apically; the ■-ides, which are distinct, c(»nverge regnlarly and rather rai)idly to become conti^nons a short distance from the femoral base; the floors are nearly Hat and (piite glabrous, each anterior margin is more or less acutely and dentately laminate at the outer fourth in both sexes. The grooves of the meso- and metafemora are rather narrow: sides rather well defined and asperate, becoming obsoletely contiguous at about basal third; the floors are more or less opaque, glabrous or rugidt)se and subasperate. The protibia' are more or less distinctly carinate externally, and slightly compressed; the tarsal grooves are not very well defined and usually scabrous, with the posterior margins m. serridate; the articular cavities are more or less slightly open. The meso- and metatibiic are not at all carinate externally in the series before me, and the articular cavities are quite closed; grooves of the mesotibiie are more or less defined, and at times moderately deep, extending to about the middle of the tibijv. and their floors are more or less glabrous or scabrous. The external surfaces of the metatibiiv are flattened, more or less scabrous, and the grooves may be distinct. The tarsi are moderate and variable in length and stoutness. The protarsi are about one-sixth of their length shorter than a mesotarsus. Joints two, three, and four subequal, quite short and wider than long, and together e<|ual to the fifth; the first is distinctly longer than wide. The mesotarsi are about a seventh of their length shorter than a metatarsus. Joints two. three, and four distinctly longer than wide and slightly shortening in length in the order named, and together a little longer than the fifth ; the second and third combined about eqmd in length to the first. The metatarsi are al)out half a- long as a iuetatil)ia. .Joints two and three are about one and a half times longer than wide and not equal, together eqmil in length to the fourth, the first being very slightly shorter. 50780— Bull. 03— fr.> 10 242 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. ELEODES GRACILIS var. DISTANS, new variety. Elongate ovate or oval, slightly robust, integun#nts firm, glabrous and shining; elytra with distant stria? of very sharply defined punc- tures. Head about twice as wide as long, feebly and quite evenly convex, broadly and slightlj^ impressed laterally, frontal suture not generally evident, finely, rather sparsely and somewhat evenly punctate, slightly more densel}' so laterally. Ante7uue rather long, attaining a short distance beyond the prothoracic base, feebly compressed and a little incrassate in outer four joints, third joint about equal to the next two taken together, the fourth a little longer than the fifth, the latter to the eighth inclusive subequal in length, eighth about as wide as long and triangular, ninth and tenth feebly transversely oval, eleventh short and subtrapezoidal or ovate. Pronotum widest at about the middle and about one-fifth wider than long; disc moderately and quite evenly convex, more or less declivous at the apical angles, polished and shining, rareW subalu- taceous, very finely and sparsely punctulate, laterally in anterior four-fifths narrowly and feebly impressed, impressed area subopaque and more or less obsoletely granulato-rugulose; apex feebly and broadly emarginate, rather coarsely beaded laterally, obsoletely so at the middle; sides broadly, evenly, and not strongly arcuate in ante- rior three-fourths, thence to base less arcuate, straight or scarcely subsinuate, rather coarsely beaded; hase broadly and slightly arcu- ate, coarsely beaded, about one-fourth wider than the apex and equal to the length; apical angles acute, not large, subdentiform and fre- quently slightly everted; basal angles obtuse, distinct, and not rounded. Propleurce smooth and opaque, veiy sparsely and obsoletely punc- tulate, more or less rugulose. Elytra oval, widest at the middle, polished and shining; hase broadly, feebly, and distinctly emarginate, very slightly wider than the contiguous prothoracic base; humeH obtuse, distinct, and not prominent-; sides evenly arcuate, somewhat gradually narrowed pos- teriorly, apex obtusely rounded ; disc more or less moderately convex, rarely slightly flattened on the dorsum, evenly and broadly rounded laterally, arcuately but not suddenly declivous behind ; surface striato-punctate, stria? distant and not impressed, regular and usually very distinct, punctures distinctly defined, those of the stria? close and separated by a distance equal to their diameters, moderately small, intervals flat with a series of very fine and distantly spaced minute punctules; punctures simple, but somewhat feebly submuricate on apex, scarcely confused laterally. REVISION OF KLKonilNI — HLAISDELL. 243 Ep'iplciivit iiioilcrati' in width liciu'jUh the liuiiii'ri. iIjcihc ^Miitl- ii.illy narrowing to apex; surface smooth, siihopaciiic, and usjially iiiipiiiutatc. Sti'i'iut not strongly iJUiictatc and moiv or h'.ss iii<;Mlost'. /'am pleura' sparsely and ohsolctely ptinctate. Ahdonu'ii horizontal, ohsolcti'ly punctato on first throe se( : anterior femora armed with an acute tooth in both sexes; til)ial spurs similar in the sexes, the anterior suhequal and acute. The tarsi are simple and similar in the sexes. Mule. — Klon«;ate and scarcely roi)Ust. Klytra somewhat ncave before the apices; surface smooth and sparselj^ punctate in apical two-thirds, setose, seta} fine and small; submarginal groove small and distinct between external margin of the dorsal plate and the thin external border of the lateral plate, terminating at the external angle of the fossa. Internal margins of the valves contiguous in basal fourth. Genital fissure in middle two-fourths and fusiform, closed in basal half by the inferior pudendal membrane. //fl&27rt^.— California (Fort Tejon, April 19-21. Fuchs and Hop- ping; Los Angeles County, Dr. E. C. Van Dyke; Fairmount, April 23, Fuchs and Hopping; Norwalk, December 25, Antelope Valley, August 5, II. C. Fall; Oak Creek, Kern County; Tehachapi Valley, June 15). Number of specimens studied, 60. Tyi^es in my own collection (males and females). Type -locality. — Fairuiount, Los Angeles County, California. Col- lectors, Fuchs and Hopping. Salient type-characters. — Somewhat robust and elongate, integu- ments firm, smooth and polished. Pronotum scarcely subquadrate, sides broadly arcuate in anterior two-thirds, thence quite straight and converging to base; apical angles acuminate and dentiform, .slightly everted; basal angles ol)tuse and distinct; disc very sparsely and minutely punctulate. Elytra with distant and distinct unim- pressed stria^ of rather small punctures, intervals flat Avith a series of very minute and distantly spaced punctules. Diagnostic cluirdcfcrn. — In collections distans is usually associated with gracilis and is to be differentiated like that species. It is more robust than gracilis; the intense black and firm liody wall, highly polished and shining surface are quite characteristic. Elytral striaj are more distinct than in gracilis and the punctuation is more dis- tinctly defined. A very interesting fact is that the most heterotypical form — a large robust example with pronotal disc subalutaceous, is amphi- tyi^ical of Irispilahris forma he ris, but the i)unctuation is perfectly simple and typical of the present race; the other heterotypes of the series resemble gracilis in form, but the sculpturing still remains char- acteristic of distans. The interesting series at hand leads me to the following specula- tion: It appears that distans is the smooth modification of hispilahris forma hrris, the latter being more northern and the former more southern in habitat, distans passing into the typical form of gracilis, from which it can not be sharply defined: in fact it may be the trans- itional form uniting gracilis and hispilahris — if there is a break in REVISION OF ELEOnilNI — BLATSDELL. 245 (he cliaiii it i^ lict wccii forimi In ris niid t/isfi/n.^. for llic l;iH<'i' i- Inilv iiion' clox'ly united (o (/nicHls (Iniii to the foniHT. (/enci'dl ohscrrdt'ionx. — Tlu' iiiciit iiiii is iicai'ly m-^ in i/rdcilis. It is liumT and (he inidtlli' lobo is less foxeate. The pro-tei iiuni i> prominent \-en(rally witli the coxa?, convex be- tween (he same and vertically truncate l)ehind, the an^de a mnci-o; soiiiednies simply with a small nnicro and n()( truncate. Mesostenuim usually rather vi'rtically declivous and broadly con- cave. The abdominal process is sube-loi/i(/ii/s is apjiarently most closely related to (/racUis and dentipta. From the former it is separated by the much broader 250 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. pronotuin; from the latter by the subopaque integuments and shorter and broader pronotum, and it inhabits a different zoological region. General ohservations. — The nientuni is triangular, rounded at apex, sometimes reflexed so as to appear truncate. The intlexed lobes are moderate in size. Surface coarsely punctate and feebly convex cen- trally, foveate laterally -within the margins. The presternum is strongly arcuate antero-posteriorly between the coxae and strongly lorotuberant ventrally with the coxae; triangular behind the equator of the coxai and vertically truncate, also compressed behind, with the angle rounded or quite strongly mucronate; surface longitudinally grooved between the coxae. Mesosternum quite vertical and more or less arcuate, broadly con- cave. The abdominal process is subquadrate and noticeably transverse, in width about equal to the length of the second segment ; the latter is slightly longer than the post-coxal part of the first ; the third is a little more than twice as long as the fourth, while the second is about a third of its length longer than the third. The abdominal salient is about a fifth wider than the metasternal salient. Metasternum laterally between the coxa3 is scarcely as long as the width of a mesofemur at base. The tibial grooves of the profemora are moderate in width and slightl}^ concave, floors glabrous; sides carinate, quite straight and contiguous before the base; the anterior margin of each groove is more or loss dentately laminate at about the outer fourth. On the mesofemora the grooves are glabrous, with the floors quite flat, the sides moderately cariniform, becoming evanescent at basal fourth without becoming contiguous. Those of the metafemora are similar but evanescent at basal third. The protibitr are slightly compressed and carinate externally. The tarsal grooves are more or less feeble, with their floors glabrous in apical moiety; the articular cavities are more or less feebly open. The meso- and metatibiae are not carinate externally and the artic- ular cavities are quite closed; the external surfaces are flattened and scarcely grooved, glabrous on the mesotibia*, subglabrous and obso- letely sculptured on the metatibia\ The tarsi are moderately stout and somewhat elongate. The protarsi are about a third of tlieir length shorter than a mesotarsus. Joints two, three, and four subequal, apparently just a little wider than long and together about equal to the fifth; the first is slightly longer than wide. The mesotarsi are about one-eighth of their length shorter than a metatarsus. Joints two, three, and four subequal, just a little longer than wide and together just a little hunger than the fifth; the first is scarcelv as loiij; as the third and fourth couibined. REVISION OF ELEOnilNI — BLAISDELL. 251 Tlie iii('latar>i me <'(|iiiil in Icii^li to half tlic lcii<,ftli of a iiiclatihia. Joints two and tliicc ai'c snl)(M|ual antl distinctly lon^tT than wide, and to<^etlier tniual to thi' foiiitli; the lirst is slij^iitly shorter. ELEODES DENTIPES Eschscholtz. Etrodcs (hntiprs Kseiiscuoi.TZ, Zool. Atlas, III, 1SC53, p. 10, pi. xiv, flg. 4. — Mannkrheim, Bull. Soc. Nat. Moscow, XVI, 1843, p. 207; Maj,'. Zool., I.s;i4, p. 31, pi. cxvii. — I.kContk. Proc. Acad. Nat. Sci. IMiila.. ls.-,s, ,,. 181.— Horn. Trans. Aiuer. Phil. Soc., XIV, 1870, p. 314. Eleodcs inoinincnH Casey, Annals N. Y. Acad. Sci., V, Nov., 1890, p. 401. EU'odrn (Ugans Casky, Annals N. Y. Acad. Sci., V, Nov., ISOO. ii. 401. EUinh's iinifittis Blaisukll, Ent. News, A'l, no. 7, Sept., 1805, p. 237. Elongate oval or ovate, smooth, and convex. Head twice as wide as lon^, feebly convex, very fcobly and vacroely impressed laterally, rather coarsely, irre^nlarly and densely pnnctate. Antenna: usually moderate, but variable in length, outer four joints compressed, slightly and gradually dilated, third joint quite e(jnal to the next two combined, fourth slightly longer than the fifth, the latter, sixth, and seventh subequal. eighth subtriangular in outline and very slightly shorter than the seventh, ninth, and tenth trans- versely oval or suborbicular, eleventh trapezoido-ovate. Pi-onoftini widest at middle, about one-third wider than long, less than twice as w'ide as the head; disc more or less bright and shining, moderately convex, rather finely, sparsely, and irregularly punctate, usually obsoletely imi)ressed, narrowly opaque, and granulo-punctate laterally along the margin in middle four-sixths, rather declivous at apical and basal angles: aprx moderately and rather arcuately emar- ginate, obsoletely margined; sides broadly and evenly arcuate, dis- tinctly sinuate in basal liflh, and briefly subparallel before the angles, more or less finely niaigined, margin reflexed : ha.sc feebly arcuate and very finely nuirgined, slightly wider than the apex; apical angles moderately acuminately produced and more or less everted; l)asal angles subrectangular or slightly prominent. Propleiinv more or less finely and irregularly granidato-nuiricate with a large smooth area posteriorly. Ehjti'd oval, smooth and shining, slightly more than twice as long as wiile, widest at the middle; base feebly emarginate, scarcely wider than the contiguous prothoracic base; humeri obtu.se, not prominent nor rounded; sides evenly arcuate, apex obtuse and not rounded; ilixr evenly and rather strongly convex from side to side, more or less gradually arcuatel}' declivous posteriorly; surface rather finely punc- tate, punctures arranged in moderately distant unimpressi'd stories and (piite closely spaced, intervals with a series of liner punctules, which are more distantly spaced, and beconn' more irregular and denser along the >uture; the |)inictini'> bccoiin' more confused and 252 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. very feebly muiicate laterally and on apex; sometimes the punctures are subequal and diffuse. ^ EpipleurcE moderately wide at the humeri and thence gradually narrowing to ajiex: surface very finely and obsoletely punctate. Sterna more or less densely punctate and rugulose. Parapleuro' rather coarsely punctate. Abdomen horizontal, rather finely and evenly punctate, rugulose, the punctuation denser on the fifth segment. Legs variable in length, form and stoutness. Anterior femora armed in both sexes: tibial spurs similar in the sexes, the anterior equal and acute: tarsi similar in the sexes. Male. — Elongate, subfusiform oval, and somewhat narrow. An- tenna^ usually scarcely reaching to or slighth' beyond the protho- racic base. Elytra gradually narrowed, and evenly, not rapidly arcuateh' declivous posteriorly: apex narrowly rounded and obtuse. Abdomen moderately convex, first two segments scarcely im- ])ressed. Anterior femora with a moderate and acute tooth at about outer third : posterior tibiae straight or arcuate. Fenude. — Rather robust. Antenna^ usually attaining the posterior third or about to the base of the prothorax. Elytra more or less broadly oval, rather suddenly' arcuately declivous posteriorly, with apex rather broadlj^ rounded. Abdomen quite strongly convex and not at all impressed. Anterior femora armed with a more or less ol)tuse tooth ; posterior tibia? not arcuate. Genital charaeters^ male. — Edeagophorc of the usual flattened oblong-ovate form and rather small. Bamle quite short and oblong, scarcely arched, but gradually gib- bous dorsally toward base. Aficale triangular; surface evenly convex, rather slightly de- pressed and with a feeble membranous groove in middle two- fourths; sides slightly arcuate and apex simply acute; base more or less ar- cuately lobed at middle and broadly sinuate laterally. Sternite slightly transverse. Each lobe with the external border evenly and broadly arcuate in apical half and quite parallel toward base; internal border straight: apex narrowly rounded: surface densely and strongly punctate in apical moiety. Seta^ rather long and dense. ^Membrane not setose across the bottom of the sinus, the latter moderately narrow. Female. — Genital segment subtrapezoidal, rather robust, apex more or less chitinous and setose. Valimla (Plate 3, figs. 9 and 11).— Dorsal plate oblong, glabrous; surface moderately concave, very sparsely punctate, seta' rather short; sides feebly reflexed; margins quite parallel, the external straight to feebly sinuate; internal border slightly arcuate; apical REVISION OK KLKODIIXI — BLAISDELL. 253 nuir well dcfiiu'd from apex internally: an^le siibrectan^iilar. Api-x short, rather coarsely punctate, setie rathci* >hort ; fossa fiin^^'d with ([iiite loii/)(/i(If the dorsal plate and distantly longitudinally rugidose. Ventrolateral .sarfacci (Plate .'5. fig. 10) nuMlerately swollen at hase and rather broadly concave laterally before the apices, glabrous, sparsely punctate and setose in apical raoiety, setae moderately long, especially along the ventral margins of the fossje. Submarginal groove more or less developed. Internal margins of the valves con- tiguous in basal fourth; genital fissure fusiform and rather wide, with the inferior pudendal membrane visible in basal half. The above descriptions are applicable to the greater number of examples in the series before me. The present species is indeed the most variable and polymorphic of any in the genus. The large series at my disposal presents a complex of incii)ient races that are mo.st bewildering. It is not wise nor practicable to give names to these forms and thus burden our faunal lists with names of races which can not be distinctively defined. These forms appear to diverge along certain lines of development and at the same time to pass directly into one another by the gradual diminution or augmen- tation of characters, as the case may be. It seems to me that it is best to select a few of the heterotypical forms as centers, around which the more incipient races may be clustered. Undoubtedly dent'tpen is unusually reactive to its environment, for each geographical region produces some peculiar modification of the typical form, and yet more or less typical examples are taken in the same regions. In accordance with the ideas just expressed I shall indicate the following forms for cabinet arrangement : Forma pertenuis. — Comparativeh' small and slender. Pronotum widest at or in advance of the middle; sides evenly arcuate and con- verging jjosteriorly. scarcely sinuate to distinctly so before the angles. \ji.'^>^ long and rerij slender. In the males the hind tii^ie are feel)ly arcuate in Iwsal half, thence scarcely straight or gradually thickened to apex. In one specimen the elytral sm-face is very minutely reticulately ruguloic, punctuation scarcely distinguishable. 254 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Measurements. — Males: Length, 18.5-19.5 inin. ; width, 7-7.8 mm. Females: Length, 17.8 mm.; width, 7.2 mm. ^ Forma elongata. — Comi^aratively large and distinctly elongate. Two subfornis can be recognized. Forma elongata laevis. — Alutaceous ; antennae reaching to or beyond the jn'othoracic base; elytra very finch' and obsoletely punctate, legs long, posterior tibia} very slender, and more or less arcuate in basal half in the males. Measurements. — Males: Length, 19..')-29 mm.: width, 6.5-9 -mm. Females: Length, 24-29.5 mm.; width, 8.5-10.5 mm. Forma elongata punctata. — This is more or less shining; antennae reaching to or beyond the prothoracic base; elytra with the serial ])unctures rather coarse and more or less impressed, the interstitial punctures are small but distinct. Legs moderately long and rather stout, posterior til)ia' in the males stout and straight. Measurements. — Males: length, 24-28.5 mm.; width, 7.5-9.5 mm. Females: Length, 27.5 nnn. ; width, 10.5 mm. Forma typica. — (ilabrous, very bright and shining; thorax with the sides strongly sinuate in front of the basal angles; legs moderate (see .salient tj'pe-characters) . Variations. — Examples of the typical form taken about San Fran- cisco Bay and in the series before me frequently present the follow- ing variations: Antenna? rather stout or slender, varying in length irresjK'ctive of sex, rarely two of different lengths in the same in- dividiud; the relative length of joints differs in individuals of the same sex; outer four joints may be noticeably dilated, subclavate, again not in the least dilated; anterior i)ron()tal angles simply acute and not prominent to acuminately i)roduced and very strongly everted, the pronotum itself may be subquadrate; elytra sometimes widest behind the middle. Measurements. — Males: Length, 22-28.5 mm.; width, 0.5-8.5 mm. Fem^ales: Length, 23-28 mm.; width, 8.5-9.5 mm. Forma prominens Casey. — Form somewhat as in dentipes., convex, .smooth, and alutaceous throughout. Head moderate, finely, sparsely punctate, more densely so toward the sides of the epistoma. Antenna' short and very robust, much shorter than the head and prothorax, third joint about twice as long as wide and equal in length to the next two. Prothorax about one-sixth wider than long; disc rather strongly convex throughout, finely and sparsely punctate, strongly aluta- ceous, the side margins very minutely beaded ; apex broadly arcuate, sinuate laterally, and subequal to the base: sides broadl}^ arcuate an- teriorly, rather strongly convergent in l)asal half, and strongly sinu- ate near the basal angles; hasc broadly, evenly, very feebly arcuate; BEVISION OF ELKODIINM — BLAISDELL. 255 apical angles acute, very promiin'iil iinlcriorly. ami (jistiiu-liy everted; basal angles acute and pi'oniincut. ScutcUum strongly transverse, hroailly rouutlcd ln-iihul, highly polished, and inipunctate. Kh/tni at base broadly, feebly eniarginate and about as wide as the contiguous prothoracic base; humeri obtuse, but not rounded nor prominent; sides evenly arcuate, the el3'tra gradually narrowed and acute at apex; disc widest at the middle, where it is rather more than one-third wider than the prothorax, feel>ly aliitaceous, finely, sparsely punctate, the punctures nearly simple, arranged in widely distant, rather feebly defined, unimpressed rows, the intervals with a few widely distant and nearly similar punctures. Legs rather short and slender, the anterior femora with a short obtuse tooth near the outer third; middle an moderate in length, slender, similar, antl very nearly equal. Measuirnioitx. — Tjength. 10 mm.: width. 7.S mm. Forma robusta. — Very robust, elytra less narrowed toward base, prothoracic base wide, integuments very smooth and subalutaceous; I)unctuation very fine or obsolete. Prothorax comparatively large, apex arcuate at middle and sinuate laterally; sides more or less sinuati- before the base. Antenniv and legs quite stout to somewhat slender. Measurements. — Males: Length, 2-J:-28 mm.; width, 0-10 mm. Females: length. 2'J-*27 mm.; width, 0-10.5 mm. Forma confinis Blaisdell. — (See Plate 8, fig; 13.) leather robust and alutaceous, very convex. Head large: antenna^ robust, reaching to the i)osterior third of the prothorax. Pronotum widest just in front of the middle, sometimes at the middle, poste- riorly straight, convergent and not in the least constricted or sinuate in front of the basal angles, the latter obtuse. Legs moderately slender. Measurements. — Males: Length, 24 mm.: width, 7.5 nun. Females: Length, 24 www. : width, 8.5 mm. The following uni mm. Colonel Casey writes that there is no described species Avith which it can be compared, and says that it should be placed near dentipes. If the sexes have the anterior femora armed it can l)e placed nowhere else. The type is evidently a female and the femoral tooth should be more acute in the male. It does not differ any more than many other aberrant forms of dentipes which I have seen. The following Aberrations represented by uniques may be men- tioned to make known extreme forms that are probably fortuitous: Aberration No. 1. — Antenna^ slender: sides of the pronotum evenly arcuate from apex to base; basal angles obtuse. Elytra widest be- liind the middle. Legs slender and moderate in length; anterior femora with a small subacute tooth at about outer third; posterior tibiae quite slender, the anterior moderately arcuate. Integuments glabrous and shining. Female. — Length, 20.5 mm.; width, 8.5 mm. Taken with typical specimens at Berkeley, California. Aberration No. 2. — Moderately robust, subopaque. and alutaceous. antennae reaching slightly beyond base of the pronotum, the latter subquadrate: base and apex truncate and equal to each other: sides evenly but not strongly arcuate, feebly sinuate just before the basal angles, the latter rectangular. Legs rather long and slender. This specimen might at first glance be taken for a female quad- ricollis. The apical angles of the pronotum are very acute and everted at right angles. REVISION OF KLKOIJIINI BLAISDELL. 257 Female. — Tx»n<_Mli. "Jl.'t imn.; width. !• iiiiii. Taken at Mokeluniiu' Hill, Calaveras County, California. In (he laHcr abciTadon (lie antorior femora Lave a small obtuse salient. In otlici- respects hotli jiossess other eharactcrs as in drntipi.^. II a h itat. — Ca 1 i f orn i a . Forma pertenuis. — K.iweah, Tulare County, Ivalph TIo])i)infr; AVat- son Spriniis. May: Martini'/.. Contra Costa County. January, collec- tion U. S. National Museum; Colony Mills, Tulare County, elevafion 5,41.') f(>et. Fuchs and IIop])in0. Disposition of the type unknown to me. Type-locality. — San Francisco; '"on the hills beneath rocks." SdlfCiif fy/h-cJianrrfrrfi. — Elongate and shining. Head and thorax finely gi'anulato-pmictate; thorax with sides rounded and strongly sinuate at ba.se; apical angles acuminate. P^lytra finely striato-punc- tate. the puncttires granuliferous (Eschscholtz). Diagnostii- chdnictn's. — A very variable species both as to .sctilpt tir- ing and general form. From (Utitiiilo it is recognized by the less stronyhj rounded x'ides of the pronotum and in being less strongly and rather less sudTS0— Hull. G;J— O'J 17 258 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. laticoTliH^ from -which it is at times difficult to separate, but here the form of the pronotum must be relied upon. • Aimata and m'ditaris have all of the femora armed, while in the present species only the anterior bear a tootli. Dentipes is undoubtedly genetically related to (irrnata (see p. 262). The chief incipient races have already been sufficiently indicated and must only serve as centers for cabinet arrangement, for the meso- types are multitudinous and defy limitations. The middle lobe of the mentum is moderate and subtriangular, at times sub-trapezoidal or more or less parabolic, and varies independ- ent of race or form; the apex is usually more or less distinctly arcu- ate; surface coarsely punctate and very faintly convex and quite narrowl}' but not strongly foveate laterally within the margin. The prosternum variable; usually rounded between and behind the coxse; frequently with a small, and less frequently with a well- developed mucro. In forma confms some specimens have it sub- truncate and feebly compressed behind, with the angle mucroid. Mesosternum quite obliquely precipitous and more or less concave. The abdominal process is subquadrate, slightly transverse and in width about equal to the length of the third abdominal segment ; the post-coxal part of the first is about equal to the second, and the latter is about twice as long as the fourth. The abdominal salient is about a fourth of its width wider than the metasternal process. The metastornum laterally between the coxse is about as long as the width of a mesotibia at aj^ex. The tibial grooves of the femora are well developed, with edges nioi-e or less cariniform. and their floors vary in the degree of con- cavity. Those of the j^rofemora do not quite attain the femoral base; on the mesofemora the grooves extend inwards to about the basal fourth and there tlie margins become evanescent before becoming con- tiguous; on the metafemora they only attain the internal third and there become evanescent before uniting. The tibia' vary greatly in sculpturing, at times very densely and coarsely muricate and at others rather feebly so. The articular cavi- ties are nearly always closed and the grooves are always more or less roughly sculi)tMred with their floors more or less shining, and variable in degree of develoj^ment. The external borders of the pro- tibia* are more or less distinctly carinate, the mesotibia? scarcely at all so. The tarsi are vei' . xariable in length and stoutness, even in the same race. In an average typical specimen the j)rotarsi are about a sixth of their length shorter than a mesotarsus. Joints two, three, and four UKVISION OF KI.KODIINI BLAISDKLIi. 259 are !3iibo([u:il ami -li^ditly wider than long, ami togctluT about eiiuul to tlu' fiftli; the liis( aboiil a half l()ii«;or than witlc. The mosotaisi aiv about a M-vtMitli of their length sliortcr than a iiu'tatafsus. rJoiiits two. three, and four about a> loni are al)<)Ut half as loiij; as a metatibia. rJoints two nnd three sul)e(|ual and distinetly lon«;er than wide, together scai'cely as lon^ as the fourth, and sKiLditly loUL'er than the first. ELEODES ARMATA LeConte. ElcodcH (U)U(ilii LeContk. Ann. Lye. Nat. Ilisl. N. Y., V. is."l, ]i. 1.34; also in Tlionisdn's Arc-nna Nat., Is-M), p. li'.'i, pi. xii, t\ii. 1!; I'roc. Acad. Nat. Scl. riiila., isns, p. ]St.— IIoun, Trans. Anier. IMiil. Soc, XIV, lS7t>. p. 310. var. imitotrns IJi.aisdki.i.. Knt. .News, \l, mi. 7, Sept.. is'ir., ]i. L'.'M;. Elongate, somewhat oblonl<>n^^ with the iiiUTiiiil horder >(i'()iii;ly rcllcxt'd in iipicnl lialf, cxtcniiil ihrcc-foiirtlis •grad- ually i-t'fl('X('d and outwardly ohliciuc; surfaro irlabrous, very slij;htly concave, -tron^dy so alouju; the icllcxcd intcinal hordor, very sparsely and finely j)uncta(e, seta* short antl not conspicuous; external border nearly straiirlit <"' slightly arcuate; intei'iuil niai-Conte). Diaf/iwstie characters. — Q.uickly recognized from all other species north of Mexico — oxvvpt mih'taj'is and feworata — by having all of the femora armed. Annata ditl'ers from the above two >pecie> mainly in its larger ^ize antl in havin«r tlu' elvtra le» attenuate. alst>. rather moie >ud- 262 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. denh' declivous behind. The femoral teeth are also usually much stouter, longer and more acute, but these last chartlcters are variable and in a large series lose their differential value. In the typical race the apical angles of the pronotum are acute, usually prominent anteriorly and dentiform. The angles present considerable variation in a large series of specimens, and if the examples be arranged according to the form of the angles, they will be found to pass from that observed in the typical, to small, acute, dentiform and everted in the other extreme of the series. These remark-s apply also to the femoral teeth; in the extreme forms as opposed to the normal, they become long, slender, and acic- ular, or even shorter and triangular, even obtuse or entirely aborted on the meso- and metafemora {forma fiiihedentata) , even where there is no change in the bodily form. In the collection of the California xVcademy of Science^s there is a specimen from Lower California, and referred to luco! by Dr. George Horn, that has only the anterior femora armed and without any evi- dence of the other femoral teeth ; this specimen has the facies of (irmata — the elytra being unusually and very gradually attenuated posteriorly, Avithout any signs of the formation of a definite cauda. I believe this specimen to be a subedentate armata. A most interesting series was received from Fresno County, Cali- fornia, by Mr. Fuchs for the California Academy of Sciences. To my mind this series demonstrated the fact that armata passes into dcntipes by the failure of development in the teeth upon the meso- and metafemora. In the series w^ere specimens with the teeth in dif- ferent degrees of atrophy, and some with only the anterior femora armed ; in general facies they could not be separated from the un- doubted typical forms in the same series (see impotens). Many specimens of fully armed armata have tlie pronotum nearly as strongl}' sinuate posteriorly as in dentipes. General obser rations. — The mentum is also variable. The middle lobe may be moderate or smaller in size, subtriangular to trapezoidal, the apex evenly rounded or subtruncate. The surface is coarsely 2)unctate and not noticeably setose, feebly convex centrally -and more or less strongly foveate laterally, or quite plane and not foveate. The prosternum is strongly sculj^tured and strongly mucronate, usually horizontally' so, and flat between the coxjv; frequently convex between the same and horizontally nuicronate, or rarely with a small mucro; sometimes vertically truncate behind, witli the angle rectan- gular or strongly mucroid and prominent. Mesosternum short, scarcely at all horizontal, nearly entirely and obliquely vertical, more or less strongly concave. The abdominal j)rocess is subquadrate. a little transverse and just a little wider than the third segment is long. The second segment is HKVISION OF ilLEODllNl — ULAISUELL. 2G3 jiImmu iMjiKiI in U'liylh to the post-coxal part of tlu* first; tlu- fourth is half as loneratt* margins. The Hoors are quite smooth. The iHotibiie are distinctly carinate externally, and the meso- and metatibia' are scarcely at all carinate externally. The tarsi are usually (piite stout and moderate in length. The prt)tarsi are about a sixth of their length shorter than a meso- tarsus. Joints two, three, and four are short. sul)e<|ual. and distinctly wider than long, and together distinctlv shorter than the fifth: the first is slightly longer than the second. Each mesotarsus is about a seventh of its length shorter than a metatarsus. Joints two. three, and four are subequal and evidently just a little wider than long, and together about e([ual to the fifth; the first is about as long as wide. The metatarsi are distinctly less than half as long as a metatibia. Joints two and three are subecjual and longer than wiile. and togi'ther decidedly shorter than the fourth; the first is al>out"^ne-h;df k)nger than wide. ELEODES ARMATA van IMPOTENS Blaisdell. Elongate, subovate, convex, and moderately shining. Ihad about twice as wide as long, moderately conve.x, irregularly and rather sparsely punctate, puncmres moderate in size and denser at the periphery. Ante nun- short, moderately slender, subclavate. outer four joints compressed and rather moderately dilated, thiid joint equal to the next two combined, fourth slightly longer than the 264 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. fifth, the hitler, .sixth, and seventh eciual and cvlinch-ioal, eighth tri- angular, ninth and tenth transversely oval, eleventn ovate, Pronotuni widest a little in front of the middle and slightly wider than long; disc evenly and a little more than moderately convex, more or less declivous at the apical angles, finely and sparseh' punc- tate; apex truncate to feebly emarginate, finely margined lateralh'; s'aJex: evenly arcuate in the anterior two-thirds, thence less so or some- what straight and converging to base, sometimes feebly sinuate, very finely margined; hase feebly arcuate, not coarsely margined and slightly wider than the apex: ajoical angles small and acutely denti- form, at times strongly everte^l ; basal angles subrectangular and not prominent. Pro-plcunv opaque, more or less finely and very sparsely punctate, frequenth' the acetabular convexities are strongly rugulose. Elytra oval and more or less elongate, smooth, widest at the mid- dle; hase truncate or feebly emarginate. and about equal to the con- tiguous prothoracic base; humeri obtuse and not prominent; sides evenly arcuate, apex obtuse; disc evenly and quite strongly convex or somewhat depressed, more or less arcuateh^ declivous posteriorly; surface finely punctate, punctures closel}' and quite regularly placed in the rather close series, intervals with a single series of more dis- tantly and regularly placed jninctures, that often become larger in the outer intervals; both more irregular and denser at the periphery. Epipleurw moderately wide and gradually narrowing from base to apex; surface obsoletely and sparsely punctulato. Sterna usually rather finely punctate and frequently quite strongly rugose. Parapleura' rather opaque, more or less sparsely, irregularly, and rather coarsely punctate. Ahdomen finely and sp^irsely punctate, punctures denser on the fifth segment, the first frequently rugulose. Horizontal. Le(js slender to moderately stout, and also moderate in length; femora quite densely punctate, and all armed;. the anterior with an acute tooth, the middle with a smaller and obtuse salient, the pos- terior with a sffll smaller and very obtuse salient : tibial spurs rather slender and moderately long and acute, the anterior subequal; tarsi similar in the sexes. Male. — Elongate and rather narrow. Antenna^ reaching to about the posterior fourth of the prothorax. Elytra rather gradually arcuato-oblifpioly declivous posteriorly. Abdomen moderately con- vex and broadly impressed and with a stronger longitudinal median impression. Posterior tibi?e more or less arcuate in basal half. Female. — Elongate and rather robust, antenniv usually not attain- ing the posterior fourth of the prothorax. Elytra more or less broadly oval and somewhat suddenly arcuato-obliquely declivous RKVISION OF ELKODIINI I5I„\1S|)KI,L. 265 posteriorly. Alxloiiu'ii strongly convex, not inipressod. Posterior tibia' sfurcely luviuitc. Measiin'mcnts. — Males: Lon^tli, "Jl.iViicS nun.; widtli, 7-1). 5 nun. Females: Length. •21-'JS mm.; width. 7.5-10.;") mm. Genital characters, male. — Edeagophore of the usual depressed oblong-ovate form, and slender. liasdle not arched, sides nearly j)arallel; surface evenly convex, scarcely gibbous. Apirttlr triangular. sJighily elongate, feebly decinved ; surfa**!' evenly convex, feebly dej)ressed. with a linear groove in apical half and not extending upon the apex: >ides evenly and verv moderately arcuate; apex very narrowly rounded and suljacute: base broadly lobed at the middle, scarcely sinuate laterally. Ster/iitc moderately^ transverse. Each lobe subparabolic with the external border eveidy arcuate and moderately converging to apex; apical margin rather broadly rounded, angle scarcely evident; in- ternal border subareiuite; surface feebly convex and rather densely punctate and setose; seta* long and quite dense at apical margin. Meml)rane not setose across the* bottom of the sinus. Female. — (icnital segment sulitrapezoidal. moderate in size, and setose. Valeula. — Dorsal plate oblong, concave internal border rather strongly reflexed in apical two-thirds and impunctate. longitudinally subcanaliculate external to the same; surface glabrous, finely, eveidy, and sparsely punctate and i>etose in apical two-thirds; seta? reclinate and rather short; external border feebly arcuate; internal margin more or less arcuate, sinuate near base; apical margin evenly arcuate. angle rounded. Apex rather long, subacute at tip. not densely punctate, seta* small and slightly denser at tip; superior margin of the fossa set with rather long seta", not denser at angle. Appendage flattened, moderately wide, subconico-semiellipsoidal, and covered with rather long seta in apical half. /Superior ptidnnhil memhrane reaching to the middle of the dorsal plate and longitudinally rugulose. Basal protuberances moderate. Ventrolateral surfaces. — Body slightly inflated, not strongly con- cave laterally, but feebly transversely so before the apices; surface finely and sparsely punctate, setose, seta^ short, longer on the inferior margin of the fossa. Submarginal groove small; exteriuil margin of the dorsal plate slightly prominent laterally. Internal margins of the valves contiguous in basal third. (Jenital fissure narrowly fusi- form, inferior pudendal membrane visible in the basal half. Variation,<<. — Apex small ; appendage as long as the apex and sub- conical: apical margin of the dorsal plate less arcuate, with angle 266 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. narrowly rounded. Dorsal plate with a slight ant^o-posterior con- A'exitj. Hahiiat. — California (Livingston, Merced County, July, F. E. Blaisdell, Charles P^uchs; Fresno, collection of the California Acad- emy of Sciences, and the collection of E. A. Schwarz: San Joaquin County, D. W. Coquillett). Number of specimens studied, 2'2. Type in my own collection, female. Type-locality. — Livingston, Merced County, California. Salient type-characters. — Pronotum moderately convex: disc smooth, very finely and sparsely punctate; apex truncate; apical angles dentiform, small, acute, and strongly divergent ; sides moder- atelv arcuate in the anterior two-thirds, thence feebly convergent to base, scarcely sinuate; basal angles almost rectangular and not prominent. Elytra with punctures moderately fine, arranged in rather closely placed, feebly impressed series, intervals with similar, sparsely, and irregularly placed punctures. The anterior femora with an acute tooth, the middle with an obtuse process, the posterior with a very small and obtuse salient. * Diagnostic characters. — Form variable. It differs in a general way from armata by being more slender and usually considerably smaller, and especially in having the teeth of the hind femora rudimentary or obsolete, while those of the mesofemora are distinct or rudimen- tary, and no doubt obsolete at times, and such individuals {forma suiedentata) are scarcely separable from dentipes. The thorax may be as in typical armata or more or less constricted at base as in dentipes. Individuals of armata with normal femoral teeth occasion- ally have the prothorax constricted nearly as in dentipen and can be spoken of as forma sinuata. No doubt but that impotens is a transitional form between armata and dentipes^ as it occurs chiefly at the periphery of the area of distribution of armata. Dentipes appears to be found mainly be- yond the area inhabited by armata. Some examples of impotens have the general form of gigantea. General observations. — The middle lobe oi the mentum is rather large, trapezoidal and slightly broader than usual, apex more or less arcuate, and the surface evenly and feebly convex. The sterna and abdomen as in armata. The articular cavities of the protibia^ are more or less open. The other tibia' and feiftora are as in armata. The tarsi may be slender or stout and moderate in length. The protarsi are scarcely a fourth of their length shorter than a mesotarsus. First four joints subequal, the first apparently as long as wide, the others a little wider than long, and together about equal to the fifth. REVISION OF r.LK(»l)IIX( — RLAISDELL. 267 Tlie iiK'sotarsi 'aiv aWoiil ('(|iiiil in Icii^lli lo a iiictiilarsu.s. First four joints apparent ly suboqiial and just a little l(m«;er than wide; joints two to foui'. inclusive. to«retliei' a little lon«>;er than the fifth. The metatarsi aic a little less than a half as Ion*; as theii" iiietatil»ia\ Joints two and three sul)e(|ual and distinctly lon<;er than wide, and to^ethei- shorlei- than (he fourth: lii'st joint the least hit loniijer than the second. ELEODES MILITARIS Horn. h'IcDiIrs niililiiris Ih)i{N, 'Pimiis. Aiimm-. I'liil. Si><„ XI \'. 1S70. ]i. .'JlU. Elonunctate. 268 BULLETIN fi.S, UNITED STATES NATIONAL MUSEUM. Ahdomen liorizonlal. rather finoly and sparsely punctate, denser on the fifth segment. • Legfi moderate, sometimes quite robust ; all of the femora armed with an acute triangular tooth in both sexes, and coarsely, densely punctate; all of the tibise more or less arcuate in basal half; tibial .spurs acute and sul)equal on their respective tibia*; tarsi similar in the sexes. Male. — Antennae reaching to the posterior fifth of the prothorax. the latter with base one-half wider than the apex and a fourth greater than the length, a third wider than long. Abdomen moder- ately convex, broadly and not strongly impressed. Femora robust, very coarsely and rather strongly punctate, punctures often deeply impressed. Sometimes the femoral teeth are veiy strong. Female. — Antennae scarcely reaching to the posterior fifth of the ])rothorax, the latter with the base about equal to the length, nbout a fifth wider than long, and a fourth wider than the apex. Abdo- men evenly and strongly convex. Measurements. — Male: Leng-th. 22.5-28 mm.; width, 7.5-9.5 mm. Female: Length, 22-25 mm.; width, 7..5-S.5 mm. Genital eharaeters^ male. — Edeagophore of the usual flattened oblong-ovate form, and someAvhat oblong. Basale with the sides scarcely parallel, about two and a half times longer than wide, slightly or not arched, very strongly and quite ab- ruptl}' convex fi-om side to side, with rather a strong antero-posterior convexity, the disc appearing gibbous at middle. Apieale triangular, slightly elongate and decurved apically; sur- face evenly and moderately convex, and with a linear groove in apical half, that does iiot extend ujjon the apex; sides arcuate at base, feebly sinuate towards apex, the latter slightly produced and nar- i-owly rounded at tip; base broadly lobed at middle, scarcely sinuate laterally. Stemite moderately transverse. P^ach lobe siibtriangulai"; exter- nal border nearh- evenly arcuate; internal nuirgin nearly straight, with apex rounded; surface strongly puncta'te in apical half, setose, setec not dense, and moderate in length. Sinus rather broad, mem- brane not setose across the bottom of the sfune. Femede. — Genital segment trapezo-triangular, moderate in size and rather strongly setose. Valrala (Plate 1, fig. 20). — Dorsal plate oblong, concave, sides evenl}' refiexed ; surface finely, evenly, and not verj' densely punctate throughout, setae short and reclinate; external border quite straight; internal border more or less sinuous; apical margin more or less arcu- ate, angle obtuse. Dorsal margin of the fossa conspicuously fringed with rather long setae, those at the angle a little longer and denser. Apex moderate and triangular, tip acute with few short hairs. REVISION Ol" KLKODIINI BLAISDELL. 269 Appeiuhujt llalli'iit'd, soini-elliijsoidal. coinimratively lar<:«'. |)mi<-- tati', aiul sdon^'ly setose at apical moiety, seta' \ong;. Sit/xrior i>ii(l( iiddl iiicnihrnnc attaiiiiiijr the middle of the dorsal |)late and loii<;iUidiiially nie-characters. — Male, thorax subquadrate, sides rounded, feebly conver<;inia(fni>stir c/iararfcrs. — Militaria is separated from arniata by the femoral teeth being less produced, broader and more equilaterally tri- angular. The anterior angles of the prothorax aiv less prominent and less strongly dentiform, everted or not. The elytra are niore attenuatetl behind. The insect api)ears more obtuse in front on account of the stronger di.scal convexity of the pronotum. A large series would no doubt show variations in the femoral teeth; the male specimen from Santa Margarita L'^land has the teeth more jinubu'ed than those from the maiidand. In a single specimen from Calamajuet. Lower California, all of the elytral punctures are rather coarse and very distinct, not impressed and the femoral teeth approach those of ar/nata in form. There is in this si)ecies a greater antero-|)osterior dorsal ctmvexity than is observed in ar/nata. In another specimen before me the general form is that of a nuile acaticaada — the elytra being gradually produced at apex with the dorsal outline c may be quite strongly impressed at times, with the intervals fee])ly or moderately convex. This si:)ecies is probably a southAvestern modification of nrmata. Forms occur in Arizona which can not be separated from this species. A specimen collected at Palm Springs, California, and recently re- ceived for identification, has the integuments more opaque, form more robust and oblong, elytra with the sides feebly arcuate and more rapidly narrowing in apical fourth; elytral ])unctures fine and equal in both series; antenna? slender and elongate, the femora compara- tively slender and the anterior femoral teeth small. Two specimens under examination hav(^ th(> general form of imli- taris^ although more elongate; the anterior femora arc (done anned^ the middle and posterior being edentate. One of these specimens was collected at San Quentin, Lower California (collection California Academy of Sciences), and referred to lucu' by Doctor Horn. I do not believe that it should be referred to that species, for the facies is 7iot that of }uossibly it is atavistic reversion. The relationship of this interesting form can not be determined until better collecting has been done on the peninsula. I therefore for the present dofint' this form as follows: Forma subedentata. — Form as in mU'itaris, with the anterior femora alone armed. REVISION OF KLEODIINl IlLAISDELL. 271 It will 1)0 ()l)sorv('(l (liiil tlu' sidt's of (lie front ;it \\iv jiiiictioii with the epistoiiia aii' fn'qiu'iitly sliternnm is horizontal or more or !('» convi-x lietwcen the coxa^, surface lon*;:itudinally grooved or concave posteriorly: mucfo- nate behind, truncate or subtruncatc The ante-coxal portion is quite short at times and with the coxa' {jrominent ventrally. Mesosternum as in ecoiid. third, and fourth 272 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. subequal, wider than long, and together about e(jual to the fifth; the first but little longer than the second. • The luesotarsi are about a sixth of their length shorter than a meta- tarsus. Joints tATO, three, and four are sul)equal and about as long as wide, together a little longer than the fifth: the first is about as long as wide. The metatarsi are just a little more than a third as long as a nieta- tibia. Joints two and three subequal, just a little longer than wide, together subequal to the fourth and a little longer than the first. ELEODES MILITARIS var. FEMORATA LeConte. ■Elcodcs f (morula LeConte, Ann. Lye. Nat. Hist. N. Y., \, 1S51, p. 134; rroc-. Acad. Nat. Sci. Phila., 1S58, p. 181.— Horn, Trans. Amer. Phil. Soc, XIV, 1870, i». 311. Elongate oval, more or less shining, smooth and convex. Head rather small, twice as wide as long, moderately convex, obso- letely impressed laterally and along the frontal suture: rather finely but not densely punctate, punctures slightly denser at the sides. Antenna' moderate, feebly compressed in outer five joints, very grad- ually and very feebly dilated, third joint about equal in length to the next two taken together, fourth just noticeably longer than the fifth, the latter to the seventh, inclusive, subequal in length, the seventh nearlj' quadrate, eighth as wide as long, ninth and tenth very feebly transversely oval, eleventh subtrapezoidal. Pronofiim widest at middle, slightly Avider than long and nearly twice as wide as the head; disc quite strongly and evenly convex, finely and evenly punctulate; aj)ex broadly and feebly emarginate. very finely beaded; Hides evenly, broadly and moderately arcuate Avitli a feeble tendency to become sinuate posteriorly, very finely beaded ; hafic \qv\ feebh' arcuate or truncate and finely beaded, about a fourth wider than the apex- and about equal to the length; apical angles small, subacute, not prominent anteriorly, with a sliglit ten- dency to eversion; basal angles obtuse, not rounded nor prominent. Proplcura' smooth, obsoletely punctulate and more or less rugulose. Ehjtvd oval, more or less gradually atteniuited posteriorly, feebly emarginate or truncate at base and equal in Avidth to the base of the prothorax; hunuii obtuse, not rounded nor prominent; sides eA'enly arcuate, apex subacute: dise (juite evenly convex from side to side, gradually and arcuately declivous posteriorly; surface finely and irregularly but not densely punctate, punctures never impressed and scarcely denser at the sides, frecpiently showing a serial arrange- ment centrally, Avith the inter.stitial punctures distantly and irregu- lar placed : .suture on the apical declivity usually more or less im- pressed. REVISION ny KLKODIINI — HI.AISDKLL. 273 Eplplruni iiiodcrulc'ly wide ;it iIk; liiuucri aiitl gradually narrow- ing (() apt'x; surface snbopaiinc and obsolch-ly j)nnctiilal('. Sfrnitf more or less sparsely piiiiclale ami irrc^^iilarly rugose. Para pi cK in- more or less sparsely punctate. Abdonicu horizontal, finely, quite evenly, and lalher sparsely punc- tate, more or less rngnlose. /,ial spurs about equal in size and length. Tarsi similar in the sexes. Male. — Moderately narrow. Antennie attaining the ]josterior fifth of the prothorax. Elytra strongly attenuate behind, very evenly and very gradually arcuately declivous posteriorly. Abdomen rather strongly convex and feebly or obsoletely impressed at middle of first two segments. Posterior tibiie rather strongly arcuate in basal third. FenKth'. — Kather robust. Antennie attaining the posterif)r fourth of the prothorax. Elytra not strongly attenuated behind, moderately and gradually arcuately declivous posteriorly. Abdomen evenly con- vex from side to side. Posterior tibiie not more strongly arcuate than the mesotibiac. Measurements. — Males: Length, 22-2;') nun.; width, 8-8.5 mm. Females : Length, 25 mm.: width, D.G nnn. Genital characters, male. — Edeagophore flattened oblong-ovate, very feebly arched in apical half, moderate in size and elongate. liasale oblong, eveidy convex from side to side, sides evenly and feebly arcuate. Apicale rather elongately triangular; surface strongly convex, without or with a very faint median membranous groove; sides feebly sinuate in apical two-thirds or straight; apex more or less produced and rather slender, (juite acute; base with a median subacute lobe, quite broadly and distinctly sinuate laterally. Sfernitc transverse. Each lobe subquadrate, with the external bor- der quite straight, meeting the apical margin at somewhat of an angle; aj)ical margin feebly and evenly arcuate and nearly tians- verse, angle introrse and subacute; inteinal bolder more or less sinu- ous; surface scarcely convex, subglal)i()us, finely and eveidy but not densely punctate, setose, seta? quite long and subequal and not dense. Membiane not setose across the bottom of the sinus, the latter short and oblong. Female. — Genital .segment subtrapi'zoidal in outline, quite strongly chitinized, setose and rather shining. r,«)7so— null. («— 01) 18 274 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Valvula (Plate 4, fig. 18). — Dorsal plate siiboblong, and widened somewhat in basal half; surface deeply concave, ^^ery sparsely and finely punctate, setulose; margins more or less reflexed; external border subangulate at junction of the middle and basal thirds, thence straight or feebly sinuate to apical margin, the latter more or less feebly arcuate with the angle evenly and rather broadly rounded; internal margin more or less feebly arcuate. Apex narrow and more or less chitinous, rather acute and finely setose at tip. seta? quite short and not noticeable over the general surface. Appendage strongly flattened, quite large and semioval, about as long as the apex, quite densely punctate in apical half and rather densely set with long hairs. Fossa narrow, margin fringed with sparsely placed and moderately long seta* that become rather dense at the angle. Submarginal groove very fine and more or less visible from above. Superior pudendal m'emhrane reaching slightly beyond the middle of the dorsal plate, and with three or four longitudinal rugidre. Valvular membranes visible beyond the pudendal membrane. Ventrolateral surfaces. — Body evenly convex in basal half and more or less transversely and rather broadly impressed before the apices; surface smooth and shining, rather evenly punctate and setose, seta^ shoi^ and reclinate. Internal margins of the valves contiguous in basal half. Genital fissure very narrowly fusiform and nearly closed. Hahitat. — Three specimens before me Avere collected by myself at San Diego on the Coronado peninsula. They were in company with omissa, beneath some roots of Yueca haccata. Number of specimens studied, 3. More recently 9 others. Type in the LeConte collection. Type-locality. — San Diego, California. Salient type-charaeters. — Thorax finely and not densely punctate, sides rounded, somewhat narrowed posteriorly, basal angles obtuse. Elytra with aj^ex attenuated, punctures more or less distinctly serially arranged, intervals sparsely ])unctulate. Femora always somewhat briefly dentate (LeConte). Diagnostic characters. — This race is to be separated from militaris by the femoral teeth being more obtuse. The thorax is less broad, especially in the females (?), and the elytra are slightly more atten- uated at apex; the antero-posterior convexity of the dorsal surface of the insect is slightly more evident. In my opinion fintorata is undoubtedly a more northern modifi- cation of militarise and in a large series this view would, no doubt, be verified. It is interesting to note that I^eConte's descriptions of armata and femorata are the same, word for word, except : " elytins parum REVISION OF ELEODIINI — BLAISUKLL. 275 attcituti(if<^ jiiiKirihiia '■' * * loii\ith a small and abrnj)tly develojxMl mucro be- hind, Avhich may be horizontal or dellexed. Me.sosternnm as iit arumtd. The abdominal process is sub(|uadrate, feebly transverse; the post- coxal portion of the first se<;ment is ecjual to the second in lenf tlu'ir length shorter than a metatarsus. Joints two to four inclusivi> >ubequal and very little 276 BULLETIN m, UNITED STATES NATIONAL MUSEUM. longer than wide; together scarcely longer than the fifth: the first joint is about one and a half times longer than Avi(Te. The metatarsi are a little less than half as long as a metatibia. Joint two is evidently just the least longer than the third, both are longer than wide, and together distinctly shorter than the fourth, also a little longer than the first. ELEODES ACUTICAUDA LeConte. Eleoilcs (icuticauda LkConte, Ann. Lye. Nat. Hist. N. Y., V. 1X51, p. 135; Proc. Acad. Nat. Sci. Phila., I.S5S, p. ISt.— Horn, Trans. Amor. Phil. Soc, XIV, 1870, p. 314. Yar. laticoUi.s I>eConte, Ann. Lye. Nat. Hist. N. Y., V, 1S,"(1, p. i:;5. Elongate, more or less shining, strongly convex, elytra more or less strongly i)roduced and not suddenly caudate. Head slightly more than twice as wide as long, quite evenly convex, moderately finely and evenly punctate. Antenna' rather stout, mod- erately short, outer four joints slightly compressed, more or less feebly and gradually dilated, third joint equal in length to the next two combined, fifth, sixth, and seventh sube(iual in length and each slightly shorter than the fourth, eighth trapezoidal in outline, ninth and tenth wider than long, eleventh subtrapezoidal. Pronotuni widest at about the middle, about four-sevenths wider than long and more than twice as wide as the head: dm- more or less bright and shining, moderately convex, noticeably declivous at base and ai)ex, rather narrowly and more or less impressed and opaque laterally, finely, irregularly and somewhat densely pinictate, some- times granulate laterally; a-pex moderately emarginate, obsoletely or distinctly margined; sides very sfronr/h/ arcuate in anterior two- thirds, thence to base less so or somewhat straight and converging, and strongly sinuate in front of the basal angles, luore or less finely margined: ha^^e moderately arcuate and rather coarsely margined, a little narower than the ai)ex: apical angles small, acuminately pro- duced and dentiform, very acute and more or less everted; basal angles obtuse, sometimes quite prominent. Prophuva' smooth, obsoletely punctidate and rugulose. Elytra elongate oval, smooth and more or less shining, widegt at the middle; hase feebly emarginate and not wider than the contiguous prothoracic base,' humeri obtuse and not at all prominent; sides evenly arcuate, frequently broadly and feebly sinuate at sides of apex, the latter gradually produced; disc quite evenly and strongly convex from side to side, more or less gradually and arcuately de- clivous posteriorly, or sometimes more or less broadly sinuate before the apex: surf (tee smooth, punctate, the jitmctures closely placed in longitudinal series, the latter moderately closely placed, intervals BEVISION OF KI.KOIHIM — FiLATSHKLT.. 277 irr<'s<'(l. Apex or caiidii concave henealli, tlie surface of Avliidi is formed l>y tlie internal elyti-al suiface. Kpijih nnr sli«;htly widened a( liase, tlience iriadually nariowing to apex, wliere it nari-o\vly niaririns the infeiior >urface of the pro- duced ai)ex or Cauda : sniface smooth and usually impunctate. jStenxi moil' or less punctate and ru;^ose. Vav(ii>U urn more or less piuictate. AJxIonun horizontal, ohsoletely or rather strongly i)unctate. ru«^u- lose. L(', fig. S),— Body slightly inflated at base, rather strongly and transversely concave before the apex, rather strongly and sparsely i)unctate ; se(a> along the ventral margin of the fossa rather long and flying. Apex quite densely setose biMieath. Subniarginal groove well developed beneath the projecting external border of the dorsal plate. Internal margins of the valves contiguous in basal third, genital fissure rather broadly fusiform and closed in basal half by the inferior ijudendal membrane. Two forms may be recognized as follows : Forma typica. — (Jlabrous. Elytra with stria> of small unimpressed punctules or punctures which are frequently' not very evident, inter- vals somewhat or very irregularly punctulate. Males dimorphic. The typical males are very strongly but not suddenly caudate; the atypical males with the females have the elytral apices moderately or scarcely produced, and not caudate. Measurements. — Males: Length, 10.5-30 nun.; width, 5-10.5 mm. Feinales: Length. 24.5-28.5 mm.; width, 8-9.5 nun. Forma punctata. — (ilabrous. Antennae stout, attaining the pos- terior third of the prothorax. Elytra with serial punctures moder- atel}' large, often eroded and feebly impressed, the series rather closely placed and often irregularly duplicated, intervals iiregularly and finely punctidate. rather more densely so laterally, males apparently homomorphic and with the females have the elytral apex moderately produced and not strongly caudate. Legs ratlier stout. Measurements. — Males: Length, 22-28 mm.; width, 8-8.5 mm. Females: Length, 22.5-2G.5 mm.; width, 8.5-10.5 nun. Habitat.— ¥ or ma. typica.— California (San Diego County; San Diego, elevation 50-300 feet. F. E. "Blaisdell, E. C. Van Dyke, Charles Fuchs, and collection U. S. National Museum; Poway, eleva- tion 700 feet, F. E. Blaisdell; Los Angeles County, V.. C. Van Dyke; Santa Barbara ; Fort Tejon, April 10-21, Fuchs and Hopping; Tulare County; San Bernardino County): Lower (^ilifornia (San Pedro Martir, collection California Academy of Sciences). Forma punctata. — California (Los Angeles County, E. C. Van Dyke). Number of specimens studied, 120. REVISION OF KLEODIINI — BLAISDELL. 279 Type ill tlio Lt'Contc collection. Type-locality. — San Dii'^o, California. Sdlit lit ty/n -( hdnictir.s. — Thoi'ax finely i)nnctalc, Wioatl and {^really rounded at (he sides, which are snlxlepi-cssed, nan-owed behind; hasal an^lesohtuse, somewhat more prominent than n>iial. I'dytra strongly convex, finely and serialely jiunctate, jjosteriorly ternum is variable, usually convex or horizontal between the coxa' and with a moderate miicro behind: rarely i-ounded or sub- truncate behind. The mucro may be horizontal oi" deflexed. Me>o>tei-num is moi'e or less obli(|ue and concave. The aixlominal process is quite <|uadrate and in wi»lth ecjual to the length of the third .segment ; the post-coxal part of the first segment 280 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. is twice as long as the fourth ; the second is a little longer than the post-coxal part of the first. • The abdominal salient is about a fourth of its width broader than that of the nietasternal process. The metasternum laterally between the coxa? in length is about equal to a niesotibia at middle. The tibia] grooves of the femora are well developed and scarcelj?^ entire, the margins are cariniform and become evanescent, usually at the internal fourth; their floors are smooth and quite flat. The anterior margin of the profemoral grooves become quite sud- denly dentately laminate at about the external fourth. The protibia) are more or less distinctly carinate externally and feebly compressed, their tarsal grooves are more or less evident and scabrous and the articular cavities are closed. The mesotibia? have the grooves more or less developed and muri- cate and the articular cavities are closed; externally obsoletely cari- nate in basal fourth. The metatibiae are more or less flattened exter- nally and roughly sculptured, not at all carinate and the articular cavities closed. The tarsi are moderate in length and quite stout. The protarsi are about a third of their length shorter than a meso- tarsus. Joints two, three, and four are quite closely articulated, sub- equal, wider than long and together about equal to the fifth; the first is about as long as wide. The mesotarsi are verv little shorter — about an eighth of their length — than a metatarsus. Joints two, three, and four are subequal, as long as wide, and together quite equal to the fifth; the first is slightly shorter than the next two taken together. The metatarsi are a little less than half as long as a metatibia. Joints two and three are subequal and distinctly longer than wide, together just the least shorter than the foiii'th. and a little longer than the first, ELEODES ACUTICAUDA van LATICOLLIS LeConte. Elongate oval, more or less shining and smooth, strongly convex and not caudate, interstitial punctures of the elytra more or less muricatc. Head rather large, twice as wide as long, rather moderatel}' con- vex, very feebly and broadly impressed laterally, finely, irregularly and rather s|)arsely punctate, quite densely so laterally, punctures finely nuiricate, frontal suture obsolete. Anfcnnn moderately stout, reaching to the base of the prothorax, outer four joints feebly com- pressed and very slightly dilated, third joint very slightly longer than the next two combined, fourth slightly longer than the fifth, the REVISION (IK KI.KdKIINI — lU.AISDKI.I,. 281 latltT, sixth, iiiitl M'\('iilli >iilir(|iial. ciirlith t ri:iii;;iil:ir to (riaii^iilo- fonic-al, ninth and tenth >nlM»rl»icuhii- in (Hitlinc, clcvcnlli sulttrapc- /oi(hil. Pronotidii widest at about the niicUllo, almost a half wi(h'r than lonj:;; (lis<- nio(K'rately convex, more sti()n<;ly so at the aii«rles. rather finely, distinctly, irrejjnlarly and not densely punctat*'. rather broadly ini|)ressed and ".^raiudo-piinctate laterally; iipcx broadly and (|nitc cxiMiIy t'inar«rinate, distinctly niarjirined laterally, 'and obsoletely so at the middle; sidis tjreatly rotmded in anterior three- fourths, thence stronirly sinuate and c()nvert at the middle; hane subtrun- cate. moiT or less sliirhtly wider than the conti •»- nnn.; width. 10..")-] ()..') m.n. Forma minor. — Somewhat lohiist and more , evenh' arcuate antero-posteriorly and mucronate behind, or subhorizontal with the i\\) mucronate; frequently deeply and longi- tudinally grooved between the coxa\ The mesosteniiini is more or less arcuately declivous and more or less broadly concave. The abdominal intercoxal salient is quite quadrate and in width is a little shorter than the third segment: the i)ost-coxal part of the first is a little longer than the third; the second twice as long as the fourth, and the third is a third of its length shorter than the second. The abdominal process is about a fourth of its width wider than the metasternal salient. The metasternum laterally between the coxre is quite short and in length is about equal to the width of a mesotibia at middle. The tibial grooves of the femora are well developed, and the mar- gins are quite cariniform; the floors are quite flat, opaque, and fre- quently slightly granular, especially on the meso- and metafemora. The profemoral grooves are subentire, the margins slightly evanes- cent before the base, and the anterior margins are dentately laminate near the outer third. The mesofemoral grooves are evanescent at basal fourth, those of the metafemora at basal third. The external surface of the protibia* is more or less distinctl}' cari- nate and the tarsal grooves are more or less evident, sometimes feebly glabrous toward apex, but generally scabrous: the articular cavities are not strongly closed. The meso- and metatibia> have the articular cavities strongly closed and nuirgined ; the tibiae are not carinate. Externally both have the grooves evident in apical two-thirds, with rest of the surface very densely, stron<2:ly, and muricately sculjitured. The tarsi are quite stout. The protarsi are about two-sevenths of their length shorter than a mesotarsus. Joints two, three, and four are sulxuiual and slightly wider than long, together about equal to the fifth; first joint about as long as wide. The mesotarsi are about a ninth of their length shorter than a meta- tarsus. Joints two, three, and four are subeipial and about as long as wide, together longer than the fifth: tlu^ fir^^t is al)()ut one and a half times lonjrer than wide. RKVMSION OK KI.KOPIIXI- MLAISPKLL. 285 Tlic nu'tiitar.^i iiif not (piitt' tM|ii;,l to Imir of (lie Ifiijrlli <»1 a iin'la- til)i:i. .loiiils two i»ii. -'<\. ( 'ii ami-ion, Hinl. (Viitr.-AiiH'i-., 1\'. rt. 1. 1S.S4, |i, 77, |tl. ill, (!;.'. LM. iiialc , Var. Iins of the frons, rather finely, more or les.s irn'«;u- larly, and not very densely punctate. Aitttuiuv lond. in moderately distant and more or less im- pressed series, the intervals with a series of irregularly and more or less distantly spaced, very fine punctures: punctui'es not becoming confused at the sides or apex, the intiMvals scarcely convex, but becoming slightly so on the ai)ex, where the suture is more or less impressed. Kpiphnrn' rather narrow and gradually narrowing from base to apex, where they extend narrowly along the sides of the inferior sur- 286 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. face of the cauda or produced apex; surface finely and obsoletely punctiilate. Sterna more or less finely, densely, obsoletely punctate and rugulose. Parci'pleiircx' more or less finely and rather densely punctate. Abdomen horizontal, finely, o])soletely punctulate and rugulose, punctures denser on the fifth segment. Legs quite slender and moderately long, usually not strongly sculp- tured ; anterior femora armed in l)oth sexes; anterior tibial spurs subequal and acute; tarsi similar in the sexes. J/r//t.— Elongate and somewhat slender. Antenna' attaining a slight distance beyond (he jirothoracic base, the latter a litth^ greater than the width of the prothorax. Elytra very obliIillNI — MI.AISDKLL. 287 \'it/ri//(f. lh>v:-n\ phitt' iiitirc <»r Ic-- iil)l()ii;i:. glabrous ami hhiniiig, sides very strongly icllcxcti ; suifacc aI plate and lonody motlcrately inllaled and uflaljrons, transversely and broadly concave before the apices, the latter finely piMictate and setose. Snbmaririnal groove more or less obsolete. In- ternal maririns of the valves contignons in basal third; genital fissnre narrowly fusiform and closed in basal half by the visible inferior pndendal membrane. Ilithitdt. — Mexico (Sinaloa, coll. Chas. Fnrh.'^; Alamos, Bnchau- Hepbnrn; Presidio, Forrer). United States (Texas). Xnmber of species stndied, 5 (8?). Type is jirobably with the Solier collection. Typc-locdliti/. — Mexico ( Alamos ? ) . Sa/h'tif t;/p<-(hi(u/nosttc cJuiractern. — The figure given in the Biologia I take to represent what is probably a typical form of this species. I can not see that it di tiers very much from some of the less strongly de- veloped forms of hi<|)art'iitly very slipjhtly wilier than lon^^ and together ahoiit e(|nai to the fifth; the first ahont J1S long as wide. The mesotarsi are very slightly shorter than a metatarsus. Joints two, three, and four siiheqiial. scarcely longer than wide, and togethei- just a little longei' than the lifth ; the first al)out one and a half times longer than wide. The metatarsi are a little shorter than half of the length of a meta- tihia. .Joints two and three snl)e(|nal. distinctly longei- than wide and together scarcely as long as the fifth, a little longer than the first. ELEODES ESCHSCHOLZII var. LUC^ LeConte. Klongate, more oi* less shining, convex and more oi- less caudate. Ili'tul twice as wide as long, moderately and evenly convex, rather finely, quite evenly and not densely punctate. A/ifeiuKr long and slender, subequal in length in the sexes, outer four joints feebly com- pressed and slightly dilated, third joint subequal in length to the next two combined, fourth very slightly longer than the fifth, the latter to the seventh inclusive subequal, eighth a little shorter and obconical, ninth and tenth scarcely wider than long, eleventh more or less ovate. PronofKm more or less quadrate, widest at the middle, usually about a sixth to a third wider than long, and less than twice as wide as the head; disc smooth, moderately and evenly convex, slightly declivous at the apical anglers, very finely, evenly and sparsely, or obsoletely punctulate; apex deeply emarginate, finely or obsoletely margined; .sides evenly and not strongly arcuate, ver\" finely mar- gined; base feebly arcuate, finely beaded, and about a sixth wider than the apex; apical angles porrect and acute, at times dentiform and more or less everted ; basal angles obtuse. Propleura' smooth, more or le.ss rugulose and finely punctulate anteriorly. Ehjtra more or less oval, smooth, usually widest at the middle; hase subtruncate to feebly emarginate and a little wider than the contiguous prothoracic base; humeri obtuse, not rounded nor promi- nent; sides evenly arcuate, apex more or less caudate; disc evenly convex and punctato-striate, stria' slightly impressed with the punc- tures rather coarse and closely placed, intervals scarcely convex with a .series of extremely fine punctnles that are more or less irregularly placed, not becoming asperate at the sides and apex. Cauda slightly deflexed at tip, above with the elytral suture impressed, beneath con- cave, the concavity being formed by the general internal surface of the elytra. 59780— Bull. 03— oil ID 290 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Epipleurce quite wide at the humeri, thence gradually and rather rapidly narrowing for a short distance, then le* rapidly to apex, where they narrowly margin the sides of the inferior surface of the Cauda ; surface smooth, generally impunctate. Sterna more or less punctate and rugulose. Parapleural not strongly punctate. Abdomen horizontal, finely, sparsely, quite evenly punctate and more or less rugulose. Legs rather long and quite slender; anterior femora armed with a straight, acute tooth in both sexes; tibial spurs similar in the sexes and rather small, the anterior being equal and acute. Tarsi similar in the sexes. Male. — Elongate and dimorphic. Pronotum nearly quadrate, about a sixth to less than a third wider than long. Elytra gradually de- clivous posteriorly; apex briefly produced or strongly and horizon- tally caudate, and accordingly two forms maj'^ be recognized : Forma typica with the cauda equal to about a fourth of the entire length of the elytra. Abdominal segments one to three usually broadly and longitudinally impressed; posterior tibia? quite strongly arcuate in basal half, thence to apex straight and distinctly widened. Forma ecaudata -with the elytral apex simply obliquely and briefly produced, acute at tip. Abdomen evenly convex from side to side; posterior tibia? not arcuate and not more suddenly widened toward apex. Female. — Robust. Pronotum slightly transverse and about a fourth to a third wider than long. Elytra more or less broadly oval and slightly ventricose, quite strongly, suddenly and obliquely decliv- ous posteriorly; apex simply acute. Abdomen evenly convex. Pos- terior tibite straight. Genital characters, male. — Edeagophore oblong-ovate, rather small and slightlv arched. Basale evenly convex, oblong, with the sides subjoarallel, and about twice as long ds the apicale. Apicale longer than wide at base, triangular; surface evenly con- vex, with a very fine median groove extending from near the base to the apex, where it becomes wider; sides nearly straight or feebly arcuate; apex acute and not produced; base subacutely lobed at the middle and sinuate lateralh'. Stemite truncately subtriangular. Each lobe with the external border straight in basal two-thirds converging toward apex, thence evenly arcuate to angle; internal margin rather arcuate, apex nar- rowly rounded; surface rather strongly and densely punctate throughout, setose, seta^ quite long and dense at tip. Membrane not setose across the bottom of the sinus, the latter rather broad. REVISION OF KLKODIINI BLAISDELL. 291 Female. — (lonilal soui)trun- cate and frinjjed with a few very short hairs; anjrle subrectangidar and without conspicuous setie. Apex short, stout, and triangular, with few very short hairs at ti|). Appcndaffc nHulerately large, as long as the aju-x, llattened. semi- elliptical, and broadly rounded at tip. with two oi- three long seta% others short and scattered over the surface. Fossa moderate in size and not conspicuously fringed with seta\ sitiiated beneath the ex- ternal half of the apical margin of the dorsal plate. Supenor pifdctuhil mcmhniiic attaining about the middle of the dorsal plate and longitudinally rugidose. Valvular membranes visi- ble IxHween the apices caudad. Yentrolatcral surfaces. — Body slightly swollen at base, moder- ately and transversely concave before the apex, the latter covered with short seta\ Submarginal groove normal and linear, more or less visible fnmi above, especially in dried specimens; lateral plate not visible externally when viewed from above. Internal margins of the valves contiguous for a short distance at base; genital fissure long and fusiform, closed in basal half l)y the inferior pudendal mem- brane. The three following forms are to be recognized: Forma typica. — Moderate in size. Males more or less caudate. Klytra striato-punctate and not noticeably inflated. Measurements. — Males: Caudate form: length. 20-28 mm; with Cauda, 23-31.5 mm.; width, 8-10,5 nun. P^caudate form: Length, 24-28 mm.; width. 0-0.5 mm. Females: length. 22-27 mm.; width 0.2-11.5 mm. Forma inflata. — Quite robust. Elytra striato-punctate and more or less distinctly inflated (Plate 1. fig. 22). Measurements. — Males: Not at hand. Fem^aUs: I>ength, 2<').5-^V2 nun.: width. 11.5-13.2 mm. Forma grandis. — Very robust and elongate, smooth, body very evenly and gradually narrowed behind. Elytral stria' more or less obsolete. Measurements. — Male: length. 37 mm.; width. 13.5 nun. I I ah it (it. — 1x1 wer California. Forma typica.— Cape St. Lucas; Santa Kosa, (lustav Beyer; San Jose del Cal)o. collections of Charles Fuchs and California Academy of Sciences 292 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Forma inflata. — San Jose del Cabo, collection Charles Fuchs. Forma grandis. — Calnialli mines, collection C^ifornia Academy of Sciences. Number of specimens studied, 140. Type in the LeC'onte collection. Type-locality. — Cape St. Lucas, Lower California. Salient type-characters. — Thorax (luadrate, apex deeply emargi- nate, apical angles 2)orrect and acute, but not acuminate; sides mod- erately rounded, basal angles obtuse; disc moderately convex and si)arsely punctulate. Elytra oval and convex, acutely attenuate be- hind, strongly striato-punctate, stria- slightly imj^ressed, intervals punctulate (LeConte). Diagnostic characters. — The characters that separate this race from eschscholtzii are very feeble. In hica- the apical angles of tiie pro- thorax are more strongly prominent anteriorly and the apical mar- gin more strongly emarginate. The prothorax is less typically quad- rate and the cauda is less attenuated toward tip. From the ditFer- ences presented by the series before me, I have no doubt but that a larger series from the different geographical regions would prove these differential characters of no value. Tn the strongly developed males with long caudse the hind tibiae are more or less arcuate in the basal half and rather abruptly dilated in the apical moiety, these characters are not evident in the ecaudate form. From the forms of acuticaiuhi it is separated l)v the striato-punc- tate elytra, by the sides of the pronotum being (juite feebly rounded, and by the elytral apices being more abruptly attenuate, the cauda being horizontal. From (loitipes it is readily known by the quadrate prothorax with feebly rounded sides. Forma inflata has to be separated from rcntricosa by the sides of the pronotum being less convergent anteriorly and l)y the greater width of the apex as comi)ared with the l)ase: the elytra are not so decidedly inflated and the apices are not produced in the females. This form ap})ears (o lead toward rcntricosa — in fact may be inter- mediate, but undoubtedly has great allinity with hica\ A large series of both si)ecies woukl no doubt demonstrate this relationship. The males are |)r()bably ecaiuhite. Forma grandis is a wonderful specimen of gigantism — such phe- nomenal development makes the limiting of species exceedingly diffi- cult in the al)senc(' of an amjde series. The ei)ii)leura' are wide at the humeri and lather rapidly narrowing to opj)osite the meta- sternal epimera. tlience narrower. v> ith margins gradually converging to apex. Fourteen series of very fine punctules are clearly indicated upon each elytron. REVISION OF ELEODTTNT — BLATSDET.L. 293 General ohserrnfiotis. — Tlic iiiiddK' loin' of the iiiciitiiin is variahlc, l)ii( iicai'ly always I liaiiirnlar. in I lir lai*";*' cxampU's (piitc <'(inilat('rally so; the aju'X is sfai'i-cly ti'iiiicatc. ^I'licrally (listinclly roimdcd; sur- face iiioiv or less irr('al fourth: the grooves are more or less obsolete or feeble and the articular cavities are closed. Tlie tarsi are more or less variable in length and thicknes.-; u>ually moderate. The protarsi are alxiut a third of their length shorter than a mesotarsus. Joints two, three, and f»)ur are sul)e(iual, the 294 BULLETIN m, UNITED STATES NATIONAL MUSEUM. fourth is at times A'ery slightly longer than the second, all are wider than long and together a little shorter than the fifth ^ the first is about as long as wide. The niesotarsi are about an eighth of their length shorter than a metatarsus. Joints two, three, and four are subequal, scarcely longer than wide and together slightly longer than the fifth; the first is about one and a half times longer than wide. The metatarsi are slightly shorter than half the length of a meta- tibia. Joints two and three are subequal and a little longer than wide, together scarcely as long as the fourth, and noticeably longer than the first. ELEODES TENUIPES Casey. Eleodes tenuipes Casky, Aim. X. Y. Acad. Sci., V. Nov., 1S90, p. 399. Elongate-ovate, rather smooth and shining. Caudate. Head twice as wide as long, finely and sparsely punctate, very slightlj' convex. Anteniuv moderate, scarcely compressed and not dilated in outer four joints, third joint a little longer than the next two taken together, fourth just a trifle longer than the fifth, the lat- ter to the eighth, inclusive, subequal, eighth subtriangular, ninth and tenth suborbicular, eleventh ovate. Pronotum quite quadrate, about a seventh wider than long, widest just at or a little in advance of the middle; disc evenly and moder- ately convex, minutely and very sparseh' punctulate; apex quite truncate, more or less finely and obsoletely margined ; sides quite evenly and not strongly arcuate from base to apex, finely beaded ; ha~se broadly and very feebl}^ arcuate, about equal to the apex and about a sixth shorter than the length ; apical angles very acute, small, denti- form, and everted; basal angles obtuse, feebly or scarcely rounded. Propleai'O' quite smooth externally, more or less obsoletely punctate and rugulose. Elytra elongate oval, widest at the middle; hase feebh'^ emarginate, and equal to the contiguous prothoracic base; humeri obtuse, not in the least prominent ; sides evenly arcuate, apex more or less pro- duced ; disc moderately convex on the dorsum, quite evenly rounded laterally, arcuately and obliquely declivous behind, punctate, punc- tures arranged in distant unimpressed rows of fine, simple, moder- ately ni)proximate punctures, the intervals each with a single series of still finer and widely si)aced punctures, which are generally simple, but which laterally toward apex become very coarse sparse asperities. KpipJi lira moderate in width beneath the humeri, thence gradually narrowing to apex, where it narrowly margins externally the infe- rior surface of the elytral prolongation; surface smooth, sparsely and very finely punctate toward a[)ex. REVISION OF ELEODIINI — BLAISDELL. 295 Sterna more or less obsoletely punctate aiul very feebly rugulose. Parapleur(F cojirsely niid somewhat obsoletely punctate. Ahilonicn horizontal, (|uite smooth, very finely and sparsely punc- tulate, finely ru0.r)-:U nun.: width, 10-10.8 mm. Females: Unknown to me. Genital eharacters, male. — Edeagophore elongately fusiform, not arched. Bdsalc elongate oblong, very moderately convex, with sides slightly arcuate. Apii-alc elongate, triangular, nearly twice as long as wide, mod- erately convex above, groove very fine and linear; sides feebly arcuate, just noticeably sinuate in apical half, tip subacute; base with a broad rounded lobe at central two-fourths, laterally feebly sinuate. Stern'ite transversely parabolic. Each lobe rather short, with the external border evenly arcuate and continuously so with the apical border, which is rather broadly arcuate, angle not evident ; internal border short, feebly arcuate or straight; surface feebh' convex, sparsely punctate and setose, setae quite long, longer and denser en the apical margin, impunctate in basal fourth. Membrane not setose across the bottom of the sinus, the latter rather broad. l/ahlfaf.— Texas (El Paso). Number of specimens studied, 1 male; type not seen. Type a male in the collection of Colonel Casey. Collector, G. AV. Dunn. Type-local it y, — El Pa.so, Texas. Salient ti/ju-r/iararters. — Prothorax with the apex very nearly as wide as the base, broadly. fe<4)ly emarginate in circular arc. the apical angles very acute and in the form of small everted teeth; base very feebly arcuate; basal angles extremely obtuse; sides almost evenly and distinctly arcuate; disc widest just visibly lK»fore the middle, rather strongly and evenly convex, minutely and very sparsely punctate. Elytra with humeri not prominent ; disc with distant unimpressed rows of fine simple moderately approximate punctures, the intervals each with a single line of still finer and ex- 296 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Ireniely widely spaced punctures, Avhicli are <;enerally simple, but which laterally toward apex become very coars# sparse asperities (Casey). Diaynostic cliuracters. — In tenuipcs the a^jical angles of the pro- thorax are strongly everted, the sides are quite evenly arcuate; in wicl'lutnii the apical angles are not everted and the sides are oblique posteriorly; in tcmiipes and in a specimen received from Professor Wickham — the latter I refer to wichliatiu — the elytra are similar and more elongately oval than in lu(otil)iic are scarcely compressed and feehly carinate exter- nally in ha.sal fourth; the tarsal ♦rrooves are rather well developed, rather hroad apically, •rradually narrowinfr toward hase, and their floors are sul>jLrlid)roMs. heinj; limited hy muricate mar-ulM'<|ual. eighth >lightly shorter and a littU' more robust, ninth and tenth orbicular, eleventh ovate. 298 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Pronotum subquadrate, one-sixth wider than long, slightly nar- rowed behind, widest at or just in advance of the tniddle; disc mod- erately convex, sparsely, very finely and indistincth^ jjunctulate; apex slightly eniarginate to subtruncate, finely and more or less ob- soletely margined; sides slightly and evenly arcuate anteriorly, and more or less oblique posteriorly, sometimes slightly sinuate before the basal angles, finely nuirgined ; base feebly arcuate and finely beaded, about one-seventh wider than the apex; apical angles more or less distinct, acute, not everted although sometimes feebly reflexed; basal angles obtuse, not rounded. Propleu7\v smooth, obsoletely punctate and more or less rugulose. Eh/tr<( elongate oval, widest at the middle; hnse feebly eniarginate, very slightly wider than the contiguous prothoracic base; luim^n obtuse, not jjroniinent nor rounded; sides evenly arcuate or subpar- allel, attenuate posteriorly and arcuately declivous with the apex more or less caudate; disc slightly and evenly convex on the dorsum, more strongly so and broadly rounded laterally, punctate, punctures fine and more or less indistinct and arranged in series, sometimes feebly impressed, intervals with a single row of fine, widely spaced punctures, which are generally simple, but may become small asperi- ties on sides about apex. E pipleiinv moderate in width beneath the humeri and gradually narrowing to the apex; surface smooth and more or less obsoletely punctulate. Sterna rather smooth and more or less obsoletely punctate and rugose. Parapleura' more or less coarsely and obsoletely punctate. Abdomen horizontal, somewhat shining, indistinctly, sparsely punctulate, and more or less transversely rugulose. Ta'(is rather long and moderate in thickness; anterior femora iirnied in one sex at least; anterior tibial spurs subequal and rather stout. Tarsi similar in the sexes with the spinules beneath moder- ately stout. Male. — Body slightly robust. Elytra arcuately and obliquely de- clivous behind, prolonged into a narrow, horizontal cauda, whose under surface is a part of the general internal surface of the elytra, the epipleura> passing narrowly along the sides to tip, the latter slightly decurved. Abdomen feebly and broadly impressed at middle, especially on the second segment. Anterior femora with an acute and rather stout tooth at outer fourth; anterior tibia^ more or less con- stricted at base. Middle and posterior femora simple; posterior tibia' frequently slightly arcuate and nari'ow in basal half, generally more or less abruptly dilated in apical moiety; both the middle and hind tibiae generally with the surface quite asperate in apical half. REVISION OF KLKODTINI — BLAISDRLL. 299 Measurementx. — Mules: L('ii:ht to tip, the lafter acute; base with a rather narrowly roMndeum, and more strongly rounded laterally, evenly and arcuately declivous posteriorly ; surface punctate and feebly sul- cate, j)unctures more or less coarse and arranged in moderately dis- tant series, intervals at times feebly convex, at others Hat, with a single series of fine punctures, which are more or less regularty or irregularly arranged: laterally and on the apex the punctures' be- come nnu'h coarser and the intervals at times strongly convex. Epipleurcp moderately narrow^ at base and very gradually narrow- ing to apex, superior margin near base broadly and feebly sinuate; surface smooth, very finely and distinctly or obsoletely, sparsely punctate. Stcrtid more or less shining, moderately densely punctured and rugose. Parapleural more or less coarsely punctate. Ahdotncti horizontal, moderately convex, shining, and glabrous, very sparsely punctulate and more or less rugul<»e. Legs rather long and moderate in thickness. Anterior femora armed in one sex. Anterior tibial spuiN similar in the sexes, the anterior slightly longer than the })osterior, both acute. Tarsi nearly similar in the sexes; each joint, except the last, of all the tarsi with a slender and acute tuft of golden-yellow and somewhat modified spines on apical angles beneath. (See male.) Male. — Elytra rather gradually and arcuately declivous behind and produced at tip into a moderately long cauda. which is not hori- zontal; elytral >ides and dorsum feebly and broadly sinuate before the produced apex, the latter with its inferior surface a part of the general internal elytral surface and narrowly margined at the sides by the epipleune. Abdomen more or less broadly impressed in the median line on first three segments. Anterior femora armed with a rather long, acute, and rather strongly curved tooth at outer fourth. 302 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. First joint of the anterior tarsi with the tip slightly and transversely produced beneath, the same bearing a tuft of modified spines which obstructs the groove. Female. — Eh'tra quite evenly arcuately declivous ijehind, with the apex feebly produced or simply subacute. Abdomen not impressed. Anterior femora more or less sinuate in outer fourth. Measurements. — Males: Length, 30-33 mm. (with cauda) ; width, 13-14 mm. Females: Length, 26-33.2 mm; width, 13.5-15 mm. Genital characters., male. — Edeagophore elongatelj' oval, depressed and not arched. Basale oblong, very moderately and evenly convex, sides feebly arcuate. Apicalc triangular, very slightly longer than wide and rather broad; surface rather feebly convex and not grooved; sides evenly and not strongly arcuate to tip. the latter subacute; base with a sub- triangular lobe at middle, Avhich is narrowly rounded at tip, feebly sinuate laterally. Stern ite transversely parabolic. Each lobe with the external mar- gin evenlv arcuate to apex, the latter somewhat brotidly rounded ; in- ternal border straight to feebly arcuate; surface very feebly convex, shining, not very strongly chitinized at inner and basal third, sparsely l^unctate, setae not long, those on the apical margin longer and not very dense. Membrane not setose across the bottom of the sinus, the latter broad. Female. — Genital segment robust, trapezoidal, valves reflexed ex- ternally, strongly chitinized and setose. Valvula (Plate 5, fig. 1). — Dorsal plate oblong, strongly concave, margins more or less reflexed ; surface glabrous, sparsely and strongly punctate, setose, setae rather short and inconspicuous; external mar- gin straight or feebly sinuate; apical margin inwardly obliquely truncate, angle acute and as prominent apically as the apex, the lat- ter quite short, robust and triangular, both sparsely set with short setae; internal margin arcuate or straight. Submarginal groove more or less visible from above and quite moderate. Appendage short and flattened, semielliptical, projecting but a short distance beyond the margin of the fossa and eccentrically placed. Fossa terminal, rather large and transverse. Superior pudendal membrane attaining the middle of the dorsal plate and feebly longitudinally rugulose. Basal prominences quite well developed. Ventrolateral surfaces strongly convex, glabrous basally and more or less concave before the apex laterally, very sparsely and coarsely punctate. Internal margins of the valves contiguous in basal and apical fourths. Genital fissure rather broad and fusiform. Inferior pudendal membrane closing the fissure in basal half. REVISION OK ELEODIINl HLAI8DELL. 303 Ilahitat. — Texas (Brownsville, Charles Dniiv. 11. 1'. W'ickhiiiii ; Uvalde, Wickham; Wades, Alice, and San l)ie<;(). Ihil)i>ard and Schwarz. collection U, S. National Miix-nni). Mexico (coll.. V. Bates). Number of specimens studied, 15. Type in the LeConte collection. Ti/lK-locdlitij. — Texas, near the Kio (Jrande Rivcj-. Salient typc-charactiis. — Thorax finely punctate, anteriorly mod- erately and posteriorly slichtly narrowed; sides rounded; anterior angles acute; base broadly rounded, hunu-ri scarcely acute. Elytra striato-punctate, intervals uniseriately i^unctulate (LeConte). D'uKfiiosf'ii- c/iarnrfcrs. — Quickly recor)n very short, subfoveale at the basal angles; inflexed lobes rather stout. The jirostei'num is quite variable. Convex bctwet'ii the coxa', with which it is quite strongly protuberant ventrally and also moderately short before the acetabula ; compressed and perpendicularly truncate behind, rising into a small nuicro at the venti-al angh^; at times sub- truncate behind, with a moderate mucro, at othtMv- rounded anil not at all mucronate. 304 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. The mesosternum is quite short, obliquely declivous, and rather strongly concave. • The abdominal process is about one-fourth of its width broader than the metasternal salient, nearly quadrate, slightly transverse, and equal in length to the post-coxal portion of the same segment, the latter l)eing equal to the third in length ; the second is t\vice as long as the fourth. The metasternum laterally between the coxse is about as long as the width of a niesotibia at apex. The tibial grooves of the profemora are well developed and defined by smooth cariniform margins, that are scarcely at all arcuate, quite evenly and gradually convergent, to IxH-ouie contiguous a short distance from the base; floors glabrous and shining, feebly concave; the anterior margins at the outer fourth are dentately laminate in the males; in the female more or less sinuately atrophic in the outer fourth. On the mesofemora the sulci are less strongly defined by cariniform margins, that become quite evanescent at the inner third : tlie floors are glabrous, shining, and very feebly concave. The metafemoral tibial grooves are rather narrow and with rather feeble margins, that become evanescent without becoming contigu- ous at about the middle. The protibije are scarcely compressed, not carinate, but smooth ex- ternally; tarsal sulci more or less feebly developed and subasperate; IDOsterior surface nuiricately sculi^tured, but not coarsely so; articular cavities usually closed. The niesotibia^ are more or less rounded and not coarsely uiuri- cately sculptured, smooth, and not carinate in basal third externally; tarsal grooves more or less obsolete and subasperate ; articular cavities closed. Metatibiic quite cylindrical, not coarsely muricately sculptured, more or less feebly flattened and rarely grooved externally ; articular cavities distinctly closed. The tarsi are moderately long and stout. The protarsi are about one-fourth of their length shorter than a uiesotarsus. Joints two, three, and four are subequal in length and slightly wider than long, together about equal to the lifth; tlie first is slightly longer than wide. The mesotarsi are just sliglitly sliorter than a uietatarsus. Joints two, three, and four subequal in length aud very slightly longer than wide, together equal to the length of the fifth; the first is about a half longer than Avide. The metatarsi are eqiuil to half the length of a metatibia. Joints two and three subequal in length, distinctly longer than wide and REVISION OK KLKOUIINI BLAiSDKI.L. 305 topotluT scarcely as lonjj as llic fourth; first joint with a total length of al)()iit twice as lonfjf as wide. The iiii^nies are comparatively loii'r. ELEODES VENTRICOSA vnr. FALLI. new. Elongate-ovate, smooth and ^hinin^^ elytra xarcely inflated, simply punctate and more or less caudate in the male. Antenna' as in rcnfrirosn. , I'rof/iont.r (piadrate, about one-eiit joint of the anterior tarsi is interrupted at middle ami does not close the groove. Otherwise as in rentri«o,sa. Fcm(de. — Body moderately robust. Elytral apex more or le.ss slightly prodiu'ed and subacute*. Otherwise as in rentricosa. Measurements — Male: Length, 'd'l.'l nun. with cauda; width. 1_'..") mm. Females: I^ength, 30-33 nun.; width, 13.'J-14 mm. Genital characters^ nude. — As in eentrieosa. Female. — (^ompares with rentricosa as follows: The genital seg- ment has the ai)ical margin of the dorsal plate of a valve less oblique and sometimes feebly arcuate: angle about as or less prominent. The ventrolateral surfaces are less strongly but more eveidy convex, and the surface lines straight when viewed longitudinally. The appendage is lai*ger, subconico-semiellipsoidal, com|)letely fill- ing the fos.sa and projecting Ix'vond the margins of the doi*sal plate, not as long as wide. 59780— Bull. 63—09 20 306 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Fissure narrower, otherwise as in ventricom. One of the speci- mens from El Paso, Texas, has the apical margii^of the dorsal plate as in vc7itricos(i. Hahitat. — Texas (El Paso, March. If. Soltau: Fort Bliss, collection of IT. (\ Fall). Number of specimens studied, 3(1 male and 2 females). Co-types distributed as follows: Male in the collection of H. C. Fall ; female types in the collection of the IT. S. National Museum. Typc-locaUti/. — Texas (El Paso and Fort Bliss). Diagnostic characters. — Falli is separated from ventricosa by the less transverse ])rotliorax, the A^ery acute, anteriorly prominent, and more or less reflexed apical angles of the same; the basal angles are distinctly obtuse and not rounded ; the elytra are much less inflated, and consequently appear more elongate, and the cauda in the male is longer. From luc(P forma infata it is recognized by the more strongly de- veloped apical angles of the j^rothorax, the oblique cauda of the male, and the nuitic anterior femora of the female. From tenuipes, which it approaches, it is quickly recognized by the well-developed anterior prothoracic angles; the cauda in tenuipes is slightly oblique at times, but more horizontal in wickhami. Tenuipes is less inflated and therefore narrower and more elongate. FaUi is undoubtedly intermediate between tcnu'ipen and rcntrlcosa, and differs Avith the latter from all other members of the subgenus by the character of the vestiture of the anterior tarsi and the mutic anterior femora in the female. General characters. — The mentum is exactl}^ as in ventHcosa^ and the prosternum is more or less rounded behind and feebly mucronate. The mesostermum is as in ventricosa. The relative size of the metasternal and abdominal salients are the same as in rentricosa. The post-coxal portion of the first segment is a little longer than the process and quite ecjual to the third in length; the second is about a fourth of its length longer than the third, the latter being about twice as long as the foui'th. The metasternum laterally and the femora are as in rcntricosu. The protibite are more or less distinctly carinate externally, and the articular cavities are more or less open; the tarsal sulci are (juite well developed, as they also are on the mesotibiie. Otherwise the tibia? and the tarsi are relatively as in rentricosa. Subgenus BLAPYLIS Horn. The present subgenus is based cliielly u])ou the t-haracter of tarsal pubescence. The males have two or three basal joints of the anterior REVISION OF KLKODIINI — BLAISDKLL. 307 tarsi f('('l)ly (liiclli or lnn\viii-li piilx'scciicc. The first joint of the middle taisi also Iknus a small tuft of similar pubescence at tip beneath, and at times the second exhibits a very small one. The s|)eci('s naturally associate themselves into •rrou|)s, the relation- ships by which this is accom|)lished result from their purs are quite similar in the sexes. Among the s|)ecies of Hlapylis are to be found <)ur smallest Eleode>. With the >ubgeneric tarsal characters are to be correlated the fol- lowing: (ithitiil cliiiriK !< rx. iiKif-f. — Apicale of the e p. .'UC.) for re- marks upon this species). 308 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Female. — Genital segiueiit triangular or triangulo-parabolic in out- line. • Valvulce. — Dorsal plates oblong, with a few scattered punctures and setse, apical margins not always well defined (see Synopsis) ; apices membranous or chitinous, always finely setose, generally with a pencil of longer hairs at tij) (penicillate). Ajyyendafje small, mammilliform and penicillate. Superior pu- dendal membrane nearly attaining the apical fourth of the dorsal plate, or only the middle {cordata) ; genital fissure in the apical third of the segment. General characters. — The crural characters are quite variable with- in certain limits in each species. The profemora are more or less clavate, the mesofemora at times feebly so in external two-thirds; the metafemora have their opposed surfaces quite parallel. The protibifc are at times sul)carinate in basal half externally and the tarsal grooves are not developed, although sometimes indicated; the mesotibiae are frequently obsoletely grooved on their external sur- faces, and the metatibia* more or less flattened on those surfaces. The articular cavities are closed on all the tibia?. The relative lengths of the tarsi and of the joints in each are prac- tically the same as in the other subgenera. The protarsi of the male are a little longer than in the female. The stoutness and length of the legs differ very much in the same species, but for purposes of comparative measurements, normal ex- amples have been selected. Distribution. — Of the seventeen species given in this paper all but three occur in California; out of six races only two are not found in that State. Tibialis is apparently peculiar to Lowei- California; lerontei to Colorado and Ncav INIexico; snoic'ii to Colorado. New Mexico west- ward to the Colorado Kiver in Arizona ; tciicbrosa and its var. nana to Nevada and eastern central and northern California. IriciiUa nuiy possibly occur on the mainland in California; it is authentically abundant on Santa llosa Island off' the Santa Barbara coast; consobrina occurs from Los Angeles County to Siskiyou County; scabripcnnis is from the Fort Tejon region; blanrhardii at Indio and the mountains in eastern San Diego County; ncototua' in southern California, and I have taken it in numbers from the wood- rats nests on the hillsides of Mission Valley, San Diego County. FucJisli occurs in the high mountains and forests of eastern Tulare County; hornii from the eastern central and northern parts of the State." ParricoUis from ledges on the hills near the coast in central parts of the State ; var. planata in the western central, and prod acta in the REVISION OF ELEODIINI — BLAISDELL. 309 niountaiiis aixl lootliills from (lie southern to the northern parts of California. IIiippiiKfii \s M present only Unown from Khloi'ado County ; cfari- cornis and .suthrosa maritime an»l U)vers of sand-chines. Conhita occurs from Los An«;eh's to northein parts of the State and at all extreme points of its northern distribution passes into phm'lunihs^ which has the lar«rest tlistrihution of any species of lihi- /'!//!■'<, oecurrin«ir in Colorado, Montana, Wyoming, Idaho, Utah, Ne- vada, ()re«;on. Washin«rton, Vancouver Island, British Coiumhia, its var. f»run/iipi'.s in Idaho. Wvomin<;. Colorado, and Nevada. Most of the species are developin<^ into a considerable numht r of incipient races. Consobrina 3Uoch«nill Vuchsii ^^^,X \/ \ ^^-^ ^v^^ ^^, Neotoma Scabro&a / ,^v<»*\. "onrii I . ^ Oordata >y 'I I /ajtundicoUisl ^HoppiD|n LecoDtel ^V / Prodocta PiraeUoideii irunnipes Sub^neric Tnuik Fig. G. — Gexeai.ckjicai. 1)Iai;k.\m ok the srnnExr.s bi.apyi.i.s. Genealogy. — It is doubtful if by any herculean effort a biologist could in the period of a few years, with the comparatively small series of specimens at hand from the different rert/rJco//i«. the latter more frequently semichitinous |/)o/j/>i«f/ii. Superior pudendal membrane short, attaining the middle of the dorsal plate. Apical margin of the dorsal plate more or less truncate: angle fc&rlaced. Size larger, length 14-lS.r> mm.; granules shining and rounded_/rMr?>ro.'?a. Siz«» smaller, length 10-12 mm.; granules coarser and submuricate laterally, more evidently setigerous _var. nana. 3. Thorax moderately transverse, sides rather strongly roundetl 4 Thorax distinctly transverse, sides very feebly arcuate, scarcely sinuate at bas«' ; form robust ineiiUa. 4. Sculpturing rather fin«'ly muricato-granulate laterally; sides of the pro- notum evenly r«>undeil from aitex to ba.se, sometimes briefly sinuate at base; form elongate ' Knotrii. Sculpturing more coars«'ly muricato-granulate; jMonotum briefly. f«H'bly. and broadly sinuate at bas«'; riytra flatteneil (or convex) on the dorsum; surface dull Iccuntei. konsobrina. .[.scdhriijcnnii 312 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. 5. Thorax transversely suboblong-oval ; somewhat coarsely and discretely punctate ? Thorax subcordate and coarsely rugoso-puuctate 15 6. Propleunc not hairy "* Proplonra? hairy 1-t 7. Gena; not produced . ^ Gense produced; sculpturing more or less coarse hlanchardii. 8. First three abdominal segments densely, coarsely punctate and more or less rugose ^ First three abdon)inal segments more finely and sparsely punctate, the tirst somewhat rngulose 10 9. I'ronotum and elytra moderately ccmvex, surface dull ; elytra more or less tuberculate laterally, asperate Pronotum and elytra very strongly convex; surface shining; elytra subas- perately sculptured neotomte. 10. Humeri more or less obtusely rounded, frequently pi'omineut anteriorly 11 Humeri obsolete; elytra equal to the prothoracic base, very gradually widen- ing to middle, causing the thorax to appear somewhat remote; surface smooth, shining or dull; antennse long hornii. 11. Iliniieri ol)tiisely r()unded and not j)rominent to prominent anteriorly; thorax noticeably transverse 12 Humeri obtusely to broadly and evenly rounded, not at all prominent an- teriorly; thorax not noticeably transverse, more as in consohrina, fre- quently subcordate (female) ; surface dull fuchsii. 12. Surface muricato-gi-anulate laterally and on apex; epipleural margin at humeri more or less visible from above 13 Surface finely and densely muricato-granulate; thorax somewhat finely punctate: form oblong-oval and depressed; antennae short; humeri rounded hoppingii. 13. Surface shining: elytra short oval, convex, rather rapidly declivous behind; humeri obtusely rounded, not at all prominent; pronotum rather coarsely punctate itarvicoUis. Surface more or less dull. Elytral base not broad ; humeri rounded, feebly obtuse and not conspic- uous; elytra somewhat attenuate at apex, sides evenly rounde hirsiihi. hairs slioiler than in that species; le;;s reddisb «ir brownish ias ivadef will no doiiht appreciate the difficulty of formulating a table that will maUe it possible to place all specimens, especially in a genus so protean as h'/codcs. T desire to impress on the student the importance of first determining the subgenus to which the specimen under considciat ion actually belongs, then try to determine whether it is typical spccilit-ally or exhibiting considerable variation. The most important diagnostic tests are those considering the general form, form of thorax with its sculpturing, form and sculi)turing of the elytra. Color |>lays very little j>art in Kfeodes, although surface luster is often hel|)ful. ELEODES TIBIALIS, new species. Elongate, oblong-ovate, nearly three times longer than wide, very smooth and shining, strongly depressed. Head about twice as wide as long, feebly convex, more or le.ss obso- letely impressed laterally, frontal suture obsoletely indicated, very finely, sparsely, and irregularly puiu-tate. puiu-tures just noticeably denser laterally and on the epistoma. Antcmuv moderate in length and stoutness, outer three joints very feebly compressed, feebly and very gradually dilated, third joint about equal to the next two taken together, fourth slightly longer than the fifth, the latter, sixth, and seventh siibequal in length, eighth more or less triangular, ninth and tenth orbicular. <'leventh short ovate, PronotN/ti quadrate, widest at or just a little in front of the middle, about a third wider than lon«j: (//vf evenlv, verv moderatelv convex. friH]uently somewhat depressed, more or less declivous at the apical angles, very minutely junictulate, obsoletely so at times, punctules sparse; t<^'-<>valo, strongly dopressod and vcrv finely punclnlat*': antfiMor lil)ia' (|nit<' stron. Forma oblonga. — Elongate oblong-ovate, not strongly depressed, rather strongly punctate; anterior tibia^ not constricted at base. M('(iKnrcm<'ht.s. — Mnhfi: Length. '20-22 mm.; width, r..."» 8 mm. Fi'tnah's: I>ength, 20-23 mm.; width, 0-0.2 nnn. ^ Genital r/uirnrters^ male. — Edeagophore of the usual ol)long-ovate form and depressed. liamlc oblong; sides broadly and evenly arcuate; surface rather evenly convex, not gibbous nor noticeably arched. ApicaJc triangidar: surface rather evenly convex, with a median shallow and rather broad groove extending to the aj>ical fourth; sides scarcely arcuate; ai)ex acute and slightly produced; base with a roimdcd lobe at middle and ftx'bly sinuate laterally. Stcniitt feebly transverse and subparabolic in outline. Each lol)e with the external lK)rder evenly arcuate; ai)ex obtuse; internal mar- gin straight to feebly arcuate; surface glabrous and shining, not densely punctate, setose, seta* moderately long and not dense. Mem- brane at l)ottom of the sinus, not setose. Female. — Genital segment elongately triangulo-parabolic in out- line. Valrula (Plate 4, fig. 10) . — Dorsal plate elongate oblong, moder- ately narrow, sides subparallel and not reflexed ; surface more or lesiP feebly concave, glabrous, finely and sparsely punctate in apical third; external margin nearly straight in basal three-fourths and rather moderately arcuate in apical fourth: internal border more or less sinuous; aj^ex very short, subacute, very feebly chitinized and setose; seta^ moderately long and fine, those on apical fourth of the dorsal plate sparsely distributed. Appcndaf/e short, more or less flattened and somewhat semicircular in outline, seta* at tip rather short, and suba|)ical in jxisition upon the apex. Superior pudendal nwwhranr longitudinally I'ugulose. attaining the apical fifth of the dorsal plate. Ventrolateral surfaees not inflated, surface lines straight when viewed longitudinally, regularly convex from side to side, glabrous and very sparsely pimctate. Ai>ex finely and sparsely setose. Sub- marginal griKJve rather broad beneath the .more or less explanate external border of the dorsal plate, the latter sometimes more or less translucent. Internal margins of the valves contiguous in basal three-fourths; fissure apical and triangular In'tween the slightly diverging ventral plates. Inferior |)udcndal menii)rane attaining the ba:^' of the apices and visible in the apical fissure. Habitat. — Lower California. 316 BULLETIN G3, UNITED STATES NATIONAL MUSEUM. Forma typica. — Sierra Laguna and La Chuparosa. Forma oblonga. — San Francisquito. • Remarl-s. — Tihlalis has been heretofore wrongly identifietl, and un- recognized as a distinct species. The following will correct the erroneous report as given by Doctor Horn." The specimens were in the collection of the academy, but were destroyed in the recent con- flagration (xVpril 18, lOOG) in San Francisco. Forma typica. — Female from Sierra Laguna labeled and reported as kumei'ulis; two females from La Chuparosa reported as (/racills, and a fenuile fiom the same j^lace was also given as (jracUis. Forma oblonga. — A male and female from San Francisquito, re- ported as humeralis. Number of specimens studied, G. Type in my own collection (male), co-types in that of Mr. Fuchs. Type-locality. — Sierra Laguna, Lower California. Salient type-characters. — Surface smooth and more or less aluta- ceous. Body elongate and depressed. Prothorax widest at the mid- dle, sides not strongly arcuate, less so posteriorly, marginal bead en- tire; apical angles slightly prominent anteriorly and narrowly rounded ; basal angles obtuse and not rounded. Elytra with the humeri obtusely angled; surface finely, irregularly and obsoletely punctulate. Anterior tibiae strongly and suddenly constricted at base. Diagnostic characters. — Tibialis is a unique and very distinct species in the United States fauna. T could not recognize it among the Mexican species given in the Biologia. Although aberrant it will have to constitute a group in the present subgenus until more nuiterial can be studied; it is not far out of place, as the first joint of the jjrotarsi is clothed with yellow pubescence beneath and the genital characters are more in harmony here than elsewhere. It ditftrs from all other species in its elongate, depressed, and subnyctobatoid form; tiie protibia' are constricted at base in the typical form, but not in the oblong form. General observations. — The mentum is moderate in size, parabolo- quadrate in form; inflexed lolies small, ajiex truncate or more or less arcuate and more or less defiexed ; surface moderately densely punc- tate, jjunctures not crowded nor noticeably setigerous, laterally more or less feebly foveate and feeljly convex centrally; base of the ligula i-ather more exi)osed than usual. The prostcniuiii is not strongly prominent veiitrnlly, evenly convex antero-posteriorly between the coxu' and also behind, smooth and in the specimens before me not in the least prt)duced posteriorly. » Proceediugs, California Academy of Sciences, 2d Ser., IV, Pt. 1, pp. 349-350. REVISION OF ELKOnilNI — RLAISDELL. 317 Tlic lupsostormmi is subvert ica I in its aiitnioi- t \v()-thii-(|.s and more or leSvS aroiato; stirfiice smooth, broadly and more or less concave. The abdominal jirocess is (juadrate (male) or slijrljtly transverse (female) and aiK)Ut a fourth of its width wider than the metasternal salient. The post-coxal j^art of the first sen^nent is lonjrer than the process and e(iual in len<;th to the third (nu»h') or a little longer in the fenuile; second segment is about twice as lonjf as the fourth. The metasternum laterally ImMwcmmi the coxa^ is as lon^ as the width of a metafennir at base. The pro femora are moderately clavate; the tibial grooves are rather wide externally, concave extiM'nally, mai' the tibial constriction. The mesofenioi'a are scarcely subclavate. althouirh feebly and evenly tumid: irroox'es rather narrow, with mar may be more or less feebly arcuate, most noticeably so in the protibiiv, the latter more or less carinate externally in basal half or two-thirds; tarsal <;rooves not i)resent and the articular cavities are closed. The tarsi are apparently slightly elongate and moderate in stout- ness. The protarsi in the male are just noticeably stouter and slightly longer than in the female. They are about a third ( male) or a fourth (fenuile) of their length shorter than a mesotarsus. The mesotarsi are about an eighth (male) or a seventh (female) of their length shorter than a metatarsus, the latter ai)out a half of its own length shorter than its metatil)ia. ELEODES SNOWII, new species. Oblong-ovate, more or less shining, about twice a> long as wide; sides of the pronotum evenly rounded from a|)ex to base: elytra more or less muricately granulate and not distinctly flattened on the dorsum. Ih(u1 twice as wide as long, more or less feebly convex, more or less feebly impres.sed laterally, frontal suture more or less evident, rather finely and irregularly punctate, slightly denser and coarser laterally and on the epistoma, sparser on the vertex. Antenna' moderate, very feebly compressed and not noticeably incrassate, third joint about 318 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. equal in length to the next two combined, fourth to the seventh inclu- sive subequal, eighth subtriangular, ninth and Isnth suborbicular, eleventh short ovate. Pronotum transversely oval, about one-half wider than long, widest at the middle ; disc moderately and evenly convex, not very finely and quite densely punctate, denser and granulate laterally ; npex more or less feebly emarginate and more or less obsoletely margined; sides quite evenly and moderately rounded, rarely just the least feebly sin- uate before the basal angles, marginal bead fine and entire; base quite truncate, more or less finely and obsoletely margined, subequal to or about a seventh wider than the apex, frequently a little shorter than the length; apical angles obtuse, narrowly rounded at tip and not prominent; basal angles obtuse and not rounded. Propleuroe more or less shining, irregularly nuiricato-granulate and rugidose. Elytra oval, less than twice as long as Avide, widest at the middle; hase not emarginate and evidently wider than the contiguous pro- thoracic base; humeri usually broadly rounded, sometimes obtusely and less broadly so; sides evenly arcuate, apex not very narrowly rounded ; disc more or less feebly or moderately convex on the dorsum, laterally more strongly rounded, not suddenly inflexed, although somewhat so occasionally, arcuately declivous posteriorly; surf are rather finely and submuricately punctate centrally, laterally and on apex nuiricato-granulate, granules and punctures irregularly but closely placed ; punctures usually more or less simple at centre of the disc. Epipleurrr at middle as wide as the mesofemur at base, gradually narrowing from base to apex, superior margin straight beneath the humeri when viewed longitudinally from the apex; surface smooth, and obsoletely punctate. Sterna more or less densely punctate. ParapleurcB quite densely punctate. Ahdomen shining, more or less densely punctate, more or less rugulose, frequently reticulately so; last segment occasionally rufous. Legs moderate in length and stoutness; anterior femora more or less sinuate in outer fifth and mutic: anterior tibijo more or less con- stricted at base, spurs quite similar in the sexes, the anterior slightly longer and stouter than the posterior; anterior tarsi with the first joint feebly thickened at tip beneath, and dissimilar in the sexes. M(dc. — Bod}' somewliat slender, antenna^ attaining the base of the prothorax; elytra quite evenly, arcuately and feebly obliquely de- clivous posteriorly. Abdomen slightly oblique, not very moderately convex; first two segments liroadly and not strongly impressed at middle. Anterior tarsi with the first two joints clothed with golden REVISION OF ELEODIINI — BLAISDELL. 319 puboscoiice at tips luMicatli. tiil't ol" llic -ccontl joints ahoiit one-half tlie si/c of tlic lii'st. F( )ii(il< . Ratlici- i()l)iist. aiitciiiia' scaiccly attaiiiiii;«: tlic l»ase of tlu> pidtliorax. Klyti'a soiiu'what l»ioa(lly oval, arciiati'ly and more or less \ortically dr* Ii\ oiis iu'liind. AImIoiucii lioi'izontal. and i-atliei" stron:ineous s|)innk's that may interrupt the mm. (rotitdl characfcrs, male. — 10ileiijj;ophore ol)lon«; fii.sifonn ; not arched. Ha)h(»rti'r tiian a metatibia. ELEODES LECONTEI Horn. Eh'odcs Iccontri IIokn. Trans. Aiiier. IMiil. Soc, XIV, 1S7U. p. 3H». Elcftilcn siiba.siKiii I.kContk.. Sinitlison. .Mis<-ell. 0>11.. 1<>7, IM. 1. ls(;t>, ]i. 114. Ovate, about twice as long as wide, surface rather dull, elytra dis- tinctly flattened and muricately |)iin<'tu!-etl. o'JTso— Bull. 03— (,iy 21 322 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Head about twice as wide as lon<^, scarcely <^nvex between the eyes, very feebly impressed laterally, punctures rather fine, some- what densely placed and quite evenly distributed. Antennm long, rather slender, outer three joints very feebly compressed and not dilated, third joint scarcely as long as the next two combined, fourth just noticeably longer than the fifth, the latter, sixth, and seventh subequal in length, eighth just the least shorter, slightly wider and subtriangular, ninth and tenth suborbicular, eleventh irregularly short-ovate. Pronotum somewhat transversely oval, about a third wider than long; disc moderately and evenly convex, rather coarsely and densely punctate, the punctures crowded and granular laterally; apex scarcely emarginate and more or less obsoletely beaded; sides rather strongly rounded, scarcely briefly sinuate before the basal angles and finely beaded ; hase truncate to feebly arcuate, obsoletely margined, about a seventh wider than the apex and quite equal to the length; apical angles distinct and subacute, not in the least prominent anteriorly; basal angles obtuse. Propleune rather densely punctate and rugulose. Elytra oval, about a half wider than the thorax, widest at the middle; hase truncate; humeri very obtuse and rounded; sides evenly arcuate, apex rather narrowly rounded ; disc very feebly convex, typically depressed, rather suddenly and somewhat narrowly rounded laterally and inflexed, dorsum frequently more strongly convex, arcuatcly declivous posteriorly; surface muricato-granulately punc- tate, punctures irregularly and quite densely placed, becoming dis- tinctly granular and setigerous laterally and on apex, seta^ short and inconspicuous, the granules are small and scarcely subseriately arranged. Epipleura' moderate in width, gradually narroAving from base to apex, superior margin quite straight beneath the humeri ; surface more or less obsoletely punctate. Sterna rather densely punctate and more or less rugose. Parapleura' rather densely but not strongly punctate. Abdomen more or less shining, quite evenly and not very densely punctate, punctures denser on the fifth segment, the first more strongly sculptured. Legs moderate in length and somewhat slender; anterior femora mutic; anterior tibial spurs rather short and apparently subequal in length and stoutness, and probably similar in the sexes; anterior tarsi dissimilar in the sexes. Male. — Unknown to me. Female. — Body rather broadly ovate, antenna^ reaching a little beyond the base of the prothorax. Elytra arcuatcly and more or less vertically declivous behind : abdomen horizontal and rather REVISION OK KLEODIINI BLAISDKLL. 323 stronpfly convox; :uit('i'i(tr lihia- sonM-wlini iiir(rtl :ii Iiuh': aii- Icrior taisi with the first joint sli«^htly thicki'ned nt lip l«'iifatli. antl llu'iT clothed with a small tiift of piccoiis spiniih's. M<'ii,si/n f/ttnf.'t. — Fcf/utfc: L('iij:;th. Hi. "J nun.: width. S lum. Genitiit c/iararters, male. — Not studied. Fcninle. — (Jonital st' short: external border feebly arcuate or straight, passing arcuately into the apical border, the hitter defined from the a|)ical surface, angle not evident; internal border more or less feebly sinuous. Apex fully chitini/ed. feebly convex al>ove, scarcely excurved, rather broadly rounded at tip. with a number of moderately short seta' over the base along the apical margin of the dorsal plate: in- ternal valvular membrane densely clothed with very short seta*: fossa an excavation at the base of the external surface of the ai)ex and beneath the apical margin of the dorsal plate. Appendage small and mannnilliform, not cons[)icuous. with a tuft of moderately long .seta.' at tip. Superhn' piulendal meniJ>rane longitudinally rugulose and attaining the apical third of the dorsal plate. Ventrolateral surfaces flattened centrally with the surface lines straight when viewed longitudinally, laterally motlerately arcuate and spar.sely .setose: surface glabrous: submarginal groove distinct beneath the slightly explanate external border of the dorsal^ plate and terminating in the fossa. Apex soniewhat concave beneath and somewhat densely set with short setie. Internal margins of the valves contiguous at basal two-thirds; fissure apical. a[)ir(^'s not con- tiguous. Inferior pudendal membrane not visible. IIahifaf.—Co\oviu\o (no special locality indicated by the labels). Number of specimens .studied, 1 female, which was carefully com- pared with type and pronoimced typical by Mr. Hlanchard: the specimen is in his collection. Type in the LeConte collection. Type-lo((/l{ti/. — Colorado. SaU*:nt type-thararter.s. — Somewhat shining. Head and thorax thickly and finely punctate, the latter with apex scarcely emarginate; apical angles acute, not prominent ; sides finely margined and strongly roundeil, not sinuate jxKsteriorly : base .strongly truncate and scarcely narrower than the apex: basal angles obtuse. Elytra with the dor- sum slightly convex, apex strongly declivous, sides suddenly inflexed, 324 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. with subseriately placed small grannies, on each side and apex briefl}'^ piliferous. Antenna^ slightly incrassate externally. Length .CO (suhaspera) (LeConte). Diagnostic clmracterti. — The present si^ecies was originally de- scribed by LeConte as suhaspera; this name having been used by Solier at an earlier date. Doctor Horn renamed it in honor of Doctor LeConte. The single female specimen before me has been kindly loaned for study and pronounced by Mr. T^lanchard as being exactly typical. In its general facies it is suggestive of pla/iipennis. The elytra are distinctly flattened on the dorsum, and the sides of the pronotum are evenly rounded nearly to the basal angles where they become slightly subsinuate. Lecontei is much less shining than planipemvis and the sculpturing is distinctly more asperate; the head and thorax are more coarsely l)unctate. Although the male is unknown to me, it is safe to as- sume that the secondary sexual characters aro tl)e same as in snou'ii. T believe that the elytra are more fortuitously depressed than nor- mally so and that the average specimens will have the elytra nor- mallj'' convex. I surmise that I have examined such examples and eri'oneously referred them to snoicii before I fully recognized the species under consideration. The genital characters in the female are the extreme for the sub- genus Bhipylis^ the valvular a])ex is fully chitinized, it is also setose and not produced, characters not observed in phinipcnnis from which it is perfectly distinct and not at all closely related. From snotoii, which appears to be worthy of specific standing — if not, at least it would be a good race of lecontei — it must be carefully differentiated. For a long time I have confused the two species; the sculpturing is quite similar in the two, but much less strongly and coasely granulate and more of the muricate type in snoicii, where also the elytra are less broadly oval and more elongate and shining. In parvicollis and cordata and their races the pronotum is more or less strongly constricted at the base, less so in consohrina, where the body is more robust. In lecontei the marginal bead of the pronotum attains the base. General observations. — The mentum is moderate and rather para- bolic in outline, finely and not deeply punctate, very feebly convex, and obsoletely foveate. The prosternum is moderately prominent ventrally with the coxa?, arcuately convex antero-posteriorly, and not in the least mucronate behind. The mesosternum is feebly arcuate and obliijue, very slightly con- cave. REVISION OF ELEODIINI — BLAISDELL. 325 Tlic iiicta^lciiniiii latcnilly Ix'twccii tlic coxa' is as lonj? as the width ol" a iiiesotibia at the apex. Tlic iiitcfcoxal process of the alxlonieii is slightly transverse and about a third of its \vi(Uh hroafh'r than the inetasternal salient. Tlie i)ost-coxal portion of the first ab(h)niinal segment is ecpial in lennase subtruncate. Ilmncri more or less broadly rounded. ej)i- pleural margin not vitiible from above; siden evenly arcuate, apex 330 BULLETIN G3, UNITED STATES NATIONAL MUSEUM. not very narrowly rounded; dine moderately to rather strongly convex on the dorsum, sides not broadly rounde«l, inflexed portions scarcely arcuate, arcuately declivous posteriorly : surface irregularly and quite densely, more or less distinctly subasperately and muri- cately punctate, sculpturing not strong, simple centrally and not distinctly granulate laterally and on the apex. Epipleurce moderately wide, gradually narrowing from base to ape.x, supei'ior margin not strong and almost straight beneath the humeri; surface smooth, impunctate toward base, obsoletely and sparsely punctate toward apex. Sterna. — Prosternum scabrously rugoso-punctate ; meso- and meta- sterna more or less shining, glabrous and rugoso-punctate. Paraplevrm rather densely, more or less evenly, and somewhat coarsely punctate. Abdomen, shining, sparsely and finely punctate, more or less rugulose. Lef/s rather short and somewhat slender; anterior femora mutic and not noticeably sinuate; tibial spurs rather slender and moderate in length, similar in the sexes; anterior spurs of the protibia? slightly longer than the posterior; anterior and middle tarsi dissimilar in the sexes. Male. — Oblong-ovate, somewhat slender. Antennae reaching a little beyond the base of the prothorax. Elytra evenly and arcuately de- clivous jDosteriorly. Abdomen slightly oblique apically, moderately convex, segments one and two broadly impressed at middle. First three joints of the protarsi not noticeably thickened and clothed with golden pubescence beneath, surface of the pads flat ; first two joints of the mesotarsi similarly pubescent, first joint in apical half, the second with a much smaller tuft at tip. Female. — Distinctly robust. Antenna? about attaining the base of the prothorax. Elytra broadly oval, arcuately and more or less verti- cally declivous behind. Abd(mu'n horizontal and strongly convex. First two joints of the anterior and middle tarsi a little more pubes- cent than usual beneath, grooves not evident. Measurements. — Males: Length, 13.5-14 mm.; width, 6.5-G.5 mm. Females: Length, 1-1— IT nun.; width, 7.5-8 nun. Genital characters^ male. — Edeagophore flattened oblong-ovate, acutely pointed at apex and scarcely arched. Basale oblong-suboval, moderately convex, sides feebly arcuate and nearly parallel. Apicale triangular. Surface very moderately convex, without groove; sides briefly arcuate at ])ase, thence broadl}' and more or less strongly sinuate, so that the apex appears more or less attenuated in apical half; base evenly rounded and scarcely lobed at middle. REVISION OF KLKODIINI lU.AISOET Jv. 331 jSteniite i)anil)olic and slightly traiisvcix'. l''.a(li lohe triangular; external border slijrlitlv (»l)li(|iu'. and more or le>s feel)ly sinuate in basal balf. (bence subtiiincale and feebly arcuate to apex, tbe latter moderately roundeil; internal bctrdci- more or less sinuate; surface feebly convex, ratber coarsely and densely punctate in a|)ical tbrec- fourtbs, setic ratber lon^, denser on apical margin. Female. — Genital segment (Plate 5, fig. 13) trian^xulm-. about a tbird longer tban wide; surface about plaiu'. finely setose on ajx'X. ]'(il riihi. — Dorsal plate oblong, elongate, about tbree times longer tban wide; surface plane, more or less declivous laterally at base, sniootb and sbining, very sparsely and finely ])unctulate in aj)i(:d balf, setie very fine and not distinct ; external border ai)out straigbt, feebly sinuous and xcry feebly converging apically; apical margin more or less arcuate and latber distinct fiom apex: internal margin quite straigbt. Aj)ex sbort and scarcely more i)rominent tban tbe appi-ndage, subacute, membranous, finely setose, witb a few rather long set 50 at tip. A ppenihujc sbort manunilliform, witb a pencil of (juite long setse at tip. Fossa nearly occupying the external surface of the apex. Bdsdl proniiiuiKe.s not evident. fSuperior pinhiKhil nunihfune scarcely longitudinally rugulose and attaining tbe ui)ical fourth of the dorsal plate. Vi ntrolati rdl .si/rfdri^. — Body triangular, surface lines straight as viewed longitudinally, smooth and sbining, feebly punctate and setose in apical third ; submarginal groove distinct beneath the slightly explanate external border of the dorsal ])late. Internal margins of the valves contiguous in basal three-fifths, fissure in apical two-fifths, narrow and nearly closed. Ildhitat. — Nearly all of the specimens before me were taken on 8anta Bosa Island, which lies off the coast of Santa Barbara Count}', California. One .specimen bears a " Santa Barbara Co." label and another simply a " Cal.," while in Mr. Fuchs' collection is one labeled "Alameda County." There arc no difl'erences noticeable in the speci- mens. I am not sure that this species is found on the mainland. Number of specimens studied, 10. Type a male in the LeConte collection. Type-locality. — Santa Rosa Island ; collector, Mr. C. M. Bache. Salient type-characters. — Subopacjue. Head and thorax rather densely punctate; thorax with the sides strongly rounded, brielly sinuate behind; basal angles obtuse and slightly ])rominent ; base broailly rounded. Elytra oval, apex attenuate and strongly d(*- clivous; humeri broadly rounded, dorsum deplanate, punctures small and gramdai-, irregularly placed, granules on each side briefly pilifer- ous. iViitenme a little incrassate at tip (LeCoute). 332 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Diagnostic characters. — Inculta is a distinct species, with a shorter, more robust form, distinctly transverse prothoftix (female), and feebly subasperate (subgranular) punctuation. The sides of the prothorax are scarcely at all sinuate before the basal angles — in some specimens not in the least and in others feebh' so; the basal angles are obtuse, distinct, and with the appearance of being just a little prominent; the lateral bead is distinctly entire. T do not believe inndta to be a synonym of ftrahripennis. The type of the latter is a female and was taken at P'ort Tejon. Doctor Horn made so many wrong determinations in Eleodes that I can not be- lieve him right in this instance. Mr. Blanchard has very carefully compared a female inculta (which is before me) with the female type of scabripennis. His com- ments are as follows: " Shorter and less convex than the type of scabripennis, tliorax much broader. It seems nearer inciiltd of .which the type is a male with base of the prothorax more constricted." Later and in another sending T submitted a male specimen, which he unhesitatingl}^ pronounced inculta. I sent the female first inten- tionally with a request to compare it with scahHpennis. The form of the thorax in snoirii (male and female) and the male of incidta is quite similar, but the apical angles in the latter are more acute and prominent, and in every example studied the sides are just the least subsinuate l)ehind the angles so as to give them an appearance of having a slight tendency to eversion. The form of the prothorax should readily separate inculta from hornii, neotoma' and confiohrina — none have it so transverse in the female, nor the sides so feebly sinuate at base as a constant character. In consobrina the apical angles are as prominent, but scarcely as acute, the sides may be feebly simuite behind the apical angles and more or less strongly sinuate before the base. General observations. — The mentum is moderate in size, sometimes rather small in the male, subtruncate and ])arab()lically rounded; surface feebly convex, scarcely subfoveate laterally, finely punctate, the punctures not distinctly defined nor noticeably setigerous. The prosternum is moderately i)rominont ventrally with the coxa?, moderately arcuate antero-posteriorly between the coxa; and usually Avith a small mucro behind at middle; at other times more feebly arcuate and more or less vertical behind, with the angle nuicroid. The mesosternum is arcuately declivous and more or less deeply and not broadly concave. The metasternum laterally between the coxae is as long as the width of a mesotibia at apex. The abdominal intercoxal salient is subquadrate (male) or slightly transverse (female) and a little (male) to a fourth (female) of its own width broader than the metasternal process. REVISION OK ELEOUIINI HLAISUKLL. 333 The post-coxal portion of tho li^^^l alxloiiiiiial segment is equal in len^h to the process, also to that of thr third (niah»). In tlie male the second se«:ment is a third of its len^h longer than the fourth; in the female the second is twice as long as the fourth and a little longer than the third. The tarsi are slender and moderate in length. The protarsi are about two-lifths (male) to a t'oiirih (female) of their length shorter than a mesotarsus. The mesotarsi are about a seventh (male) to a fiftli (ffiiialc) of their length shorter than a metatarsus. The metatarsi are about a fourth (male) to two-thirds (female) of their length shorter than their respective metatibiie. ELEODES CONSOBRINA LeConte. EleoilcH onnanhriiKt LeContk. Ann. Lye. Nat. lii.st. N. Y., V. 1851. p. 13r». — HoKN. Trans. Auier. Thil. Soc, XIV, 1870, it. 316. Eh'odcs vcscyi LeConte. Proc. Acad. Nat. Sci. Phila.. 18.">,s, p. 187. Oblong-ovate, robust, elytra coar.sely and submuricately punctate centrally and tuberculate laterally; surface dull or feebly shining. Hi (id about twice as wide as long, more or le.ss feebly convex, slightly impressed laterally and often along the frontal suture* which is irenerallv evident as a more or less smooth line, sides of the frons not usually prominent, more or less evenly, rather densely and some- what finely punctate, punctures slightly denser laterally. Antenna' rather stout, moderate in length, scarcely compressed, very feebly and gradually widened in outer four joints, third joint comparatively short and .scarcely as long as the next two combined, fourth to the eighth, inclusive, (juite equal, ninth and tenth feebly transversely oval, eleventh short-ovate. Pronotum somewhat transversely oblong-oval in outline, two- sevenths to a third witler than long, widest at the middle; dm- mod- erately to rather .strongly and evenly convex, quite densely, evenly, or irregularly punctate, punctures moderately coai-se, becoming grami- late at the sides; ajH\e evenly and moderately emarginate. obsoletely margined; aides more or le.ss strongly arcuate and constricted at basal twelfth or eighth, thence briefly .straight or feebly oblique to the basal angles, marginal i)ead rather thin and fine, at times somewhat coarser and more or less entire and reflexed; base slightly roundetl and not very coai-sely beaded, equal to or a fourth wider than the apex and about equal to the length; apical angles subacute to feebly rounded and rather prominent anteriorly; basal angles minute, obtuse or rec- tangidar. feebly prominent at times. Propleuro opaque, not densely muricato-granulate, and more or less rugulose about the acetabular convexities. 334 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Elytra suboblong-oval, about a half longer than wide, widest at the middle; ha^se rather truncate and more or f^ss sinuate. Each side of the middle equal to or distinctly wider than the contiguous prothoracic base; humeri more or less obtusely rounded; sides evenly and moderately arcuate, apex more or less feebly attenuate, not very narrowly rounded ; disc moderately convex, not noticeably flattened, evenly and strongly rounded laterally, arcuately declivous posteriorly ; surface irregularly, densely and coarsely, slightly submuricately j^unctate on the dorsum, sides and apex densely sculptured with rec- linate granules or tubercles, rarely the j^unctures are feebly subseriate on the dorsum each side of the suture. Epipleune comparatively moderate in width, gradually narrowing from base to apex, superior margin nearly straight — at most but feebly sinuate beneath the humeri, somewhat decurving apically. rarely visible from above at the humeri ; surface very sparsely sub- muricately punctulate. Sterna densely punctato-rugulose. Parnplenrfv more or less shining and coarsely punctate. Ahdomen more or less shining, more or less densely and coarsely punctate, more strongly so and rugulose to rugose about the coxae, less densely and more finely sculptured on the last two segments. Legs moderate in length, somewhat stout, and densely but not very coarsely sculptured; anterior femora mutic; tibial spurs similar in the sexes, the anterior of the protibise slightly longer than the pos- terior; tarsi dissimilar in the sexes. Male. — Oblong-ovate, somewhat narrow. Antennae scarcely reach- ing beyond the prothoracic base. Ellytra somewhat attenuate in apical fourth, arcuately and rather obliquely declivous behind. Ab- domen more or less oblique and moderately convex, more or less broadly impressed at middle on the first two segments. First two joints of the protarsi slightly thickened at tip beneath, and there clothed with l)lunt tufts of j^ellowish pubescence, the second smaller than the first ; first joint of the mesotarsi with a similar but moderate tuft, obliterating the groove. Female. — Robust, ovate. Antennae scarcely attaining the protho- racic base. Elytra arcuately and quite vertically declivous behind. Abdomen horizontal and rather strongly convex. First joiut of the protarsi slightly thickened at tip beneath, groove almost entire. Measurements. — Males: Length, LVIG.;") mm.; width. G-6.5 mm. Females: Length, 10-19 mm.; width, 7.5-9 nun. Genital characters, male. — Edeagophore flattened oblong-ovate, very slightly arched. Busulc oblong, slightly more lluui twice as long as wide; sides feebly arcuate, subparallel; surface moderately convex. REVISION <»!•' KM'.OIilIM BTiAISDKLL. 335 Apicdlc triangular. iiKMlcratcly (•(nivcx alxtvc, without ^loove; sides slijrhtly proiniiuMit at base, thence feebly sinuate to tip, the latter subacute: l)aso witli a moderate and round<'(l lobe at middle, feebly arcuate laterally. Sternite transversely parabolic. P2ach lobe trian«;ular; surface glabrous, feebly convex, impiinctate in basal third, |)unctate else- where, more densely so about apex, setose, seta- moderately lon^; ex- ternal border obliquely arcuate: a|)ex nairowly lounded, and con- tinuously so with the internal border which becomes sinuate. Mem- brane not setose, sinus rather broad and triauLTulo-oval. Female. — (Jenital sejrment ])arabolo-lrianLMdar. rather depressed, dorsal surface (juite plane and not noticeably seto.se, except at apex, glabrou.s. Valvitla (Plate 4, fi^r^^. and 10). — Dorsal plate oblon«^. quite hori- zontal, with the sides subparallel: surface j)lane or very sliirhtly concave, obsoletely punctulate; internal and external borders sli<;htly arcuate; apical border more or less evenly rounded, an«;le not in the least evident. Apex triauiridar, rather broad, very finely setose, seta? at tip moderately lon^. Fossa at base of the external surface of the apex behind the dorsal plate. Appendage short maminilliforni, with a pencil of (piite long setie at tip. Superior pudcmhd memhrane longitudinally rugidose and rather broadly exposed, attaining the apical fourth of the doi'sal plate. Banal promimmes very small. Ventrolateral surfaces triangularly plane at center to base: surface lines quite straight as viewed longitudinally and modeiately convex transversely: surface smooth and impunctate. Submarginal groove well developed beneath the distinctly explanate external margin of the dorsal plate, extending oblicjuely across the base of the apex as a shallow concavity; apex finely setose. Internal margins of the valves contiguous in basal three- fourths; genital fissure in aj^ical fourth and rathei* nariowly fusiform. Inferior pudendal membrane not visible. Ilahitat. — California (San Diego County: San Uernarilino Moun- tains; I^)s Angeles County: Santa Barbara County: Fort Tejon, Fuchs and Hopping; San Franci.sco County; Shasta and Siskiyou counties). Number of specimens studied, A7k Type. — A male in the I^Conte collection. Type-localUy. — Mountains about Santa Isjibel, California. Salie/it tj/pe-r/iaracters. — Oblong. Thorax rounded, apex emar- ginate. thickly punctate, sides granulate, margin reflexeil, ]>osterior angles minute. Flytra thickly and coarsely ]>unctate, sides and pos- teriorly rough and reclinately granulate, apex attenuate (LeConte). 336 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Diagnostic characters. — It would api)ear from a careful study of LeConte's description that the type (male) had the sides of the pronotum rounded nearer to the base than in the majority of the sj^ecimens before me, in consequence there is a less degree of con- striction and the angles smaller; such is the case in a specimen which has been compared with the type by Professor Fall, and in his col- lection, and which I take to be quite typical. The example was col- lected in the San Bernardino Mountains. In all of the specimens making up a small series taken at Fort Tejon b}^ Fuchs and Hopping, the sides of the pronotum are more strongly constricted, straight, and parallel in about the basal eighth ; the angles are therefore larger and rectangular, but some of the specimens approach Professor FalFs sj^ecimen, so that this character is simply a variation and of no specific value. The Fort Tejon specimens no doubt belong to the form described by LeConte as veseyi, the type of which is a large male and remark- able for the attempt at striae of large punctures near the middle of the elytra (LeConte). Mr. Blanchard writes me that veseiji is so near the type of consohrina that he is surprised that LeConte should have given it a name; it is no doubt a heterotype and therefore a true synonym of consohrina. In resei/i the j^ronotiim is more strongly constricted and the basal angles larger and subrectangiilar ; therefore it is related to the specimens above mentioned from Fort Tejon. An interesting specimen from Lower California was referred to cotisohrina b}^ Doctor Horn;" it was destroyed with the Academy in the recent disaster before I had an opportunity to study it. It is very difficult oftentimes to satisfactorily separate this species from some forms of parricoUis; as a rule in consoh/'hur the pronotum is more strongly and evenly convex from side to side, and not at all impressed or flattened Avithin the latei-al margins; in parriroJJifi. when the pi'onotal surface is evenly arcuate from side to side, it generally arises more suddenly and strongly from the margins. In consohrina the humeri are more rounded and the superior epipleural margin not visible from above; the elytral sculpturing is also coarser and tuberculate. These characters are valuable when the pronotal ones are weak or exhibit an approach to parvicollis^ as they do sometimes. The heterotypes of both species are at times no doubt amphitypical. In consohrina the marginal bead is not so reliable a character as in tenehrosa, inciilta, and snoicii, for instance; the species is always more robust. It is often necessary to examine the genital segment of the female to more satisfactorily i)lace some i)articular specimen, and males from the same region can be jilaced with the females. <»Proc. California Acad. Sciences, 2d ser., IV, Pt. 1, p. 350. REVISION Ol' KLKODIINI — BLAISDKLL. 337 Spec'inioiis from (lie I-'ar-ilIoiR' Islniids liaxc hccii f('r to consider (licni as a form oi parricoH'ts^ for the following reasons: The are not produced as in hlanchdrilii. and for remarks on scdhi'tjHiinis see j). 338. In fuclis'tl the prothorax is com- paratively smaller and less convex. In some specimens (females from Los Angeles County) the elytra are densely and distinctly tuberculate throughout. (rctunil (thscri'dthni.s. — The mentum is triangulo-parabolic to para- bolic in outline: surface convex at middle and more or less foveate along the sides, rather densely but not distinctly i)un.ctate and not noticeably setose. The prosternum is not strongly prominent ventially with the coxie, coarsely sculptured, usually distinctly grooved along the mid- dle, horizontal; rarely feebly arcuate antero-j)osteriorly between the coxa?, strongly and horizontally mucronate l)ehind: often vertically truncate posteriorly with the angle more or less well develoi)ed as a nuicro, which may be detlexed or oldiijue. The mesosternum is arcuately and obli(|uely declivous, deeply and rather broadly concave, so that it ajjpears somewhat bilobed. The metasternum laterally between the coxa* is a> long as the width of a mesotibia at middle oi- base. The abdominal process is snb(|uadrati' (male) to moderately trans- verse (female) and a third (male) to a sixth (female) wider than the metasternal salient. In the male the post-coxal part of the lirst abdominal segment is equal in length to the process, and also to that of the si'cond : the latter is twice as long as the fourth; the third is a half longer than the fourth. 507SU— Bull. tJ3— 01) 22 338 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. In the female tlie second segment is e({ii:il in k>nru)is posticis (»btnsi.'; dense innu-tato. ad latera subasperato. elytris ovalibus, tborace latioribus. dorso paruni convexis, postice valde declivibus. jrianulis parvis inordinatis dense exasperatis, et versus suturam punctatis, tibiis muticis, prosterno postice oblique submu- cronato, antennis oxtrorsum parum incrassatis. Long. .65." Ilahitat. — California (Fort Tcjon). Diagnostic characters.— ^Vv. Blanchard writes me that the type is a robust female. Avith the folloAving remarks upon the same: Stout, convex. Thorax convex, wider than long, sides very briefly sinuate at hind angles, coarsely, densely punctate, more closely and asperately on sides, base margined; flanks opaque, rather closely and distinctly granulate. Elytra convex, sides strongly rounded, coarsely granu- late; epipleura? broad, sparsel}' granulate, antennce rather stout, joints 4-7 subelongate. 8th scarcely longer than wide. LeConte compares it with veseiji, saying that it has the same sculpturing and size, but differing by the thorax being much less rounded on the sides, by the posterior angles not being at all promi- nent. I have not seen a single specimen in the material at hand which I could refer to this species, and personally I have no idea of its habitus. Fortunately I can rely upon the observations of such careful workers as Mr. Blanchard and Professor Fall. Mr. T^lauchard has compared all likely specimens with the type at Cambridge and has failed to refer any examples to the present species. For remarks upon inculta see p. 38*2. Professor Fall compared a series with the LeConte type and labeled a male example as scahripennis. It was collected at Santa Barbara, California. This specimen has the form of a male conso- hnna^ from which it differs no more thau the males of that species differ among them.selves. The elytral sculpturing is more like sharp- ened granules than tubercles, finer and dense, with punctures simple each side of the suture; the pronotal punctuation is denser than in REVISION OF KM'.ODIINI lU.AlSDKI.L. 339 ronnohriiKi. 'I'lic spcciiiicii i> (li>l iii an exponent of ■'^>(/hri/>i'tinis, T would have no hcsilation in pi()nonncin«j: it as a synonym of mn- .sohi'ind. One fact is evident, tiiat no student i)esi(les LeConte ever had any true conception of this species. Doctor Horn did not, fop he refeiied the Santa Barbara specimens {hiculta /) to this species. I know of only one authentic specimen, and that is the type. A specimen in Doctor \'an Dyke's collection was doul)trully re- ferred to scahripetum; it was collected at Tndio, California. It is very opa(|ue and sordid in api>earance: the sculpt ujiii;:: is rather coarse and dense, but upon examination I found the nr^'iKc produced, and it is therefore hianchardii, although ratliei- stronjrly sculptured and larijfer (1(')..'> mm.-S nun.) than any exami)le of the series studied. It makes a good companion for Casey's specimen referred to under hlanrhardii. Until more collect int at times, scarcely twice as long as wide, elytra coarsely jiunctate and subtuberculate laterally; genie dis- tinctly produced; surface somewhat dull. Head scarcely twice as wide as long, feebly convex, more or less feebly and broadly impressed laterally, sometimes feebly so along the frontal suture, the latter more or less evident as a smooth line; rather thickly punctate, punctures rather coarse and somewhat granulate, denser laterally and on the epistoma. Ante mm moderate in length and stoutness, feebly compressed and slightly dilated in the outer four joints, third joint about (Mjual in length to the next two combined, fourth just the least longer than th(> fifth, the latter to the eighth inclusive subequal in length and slightly longer than wide, the eighth sometimes subtriangidar. ninth and tenth orbicidar to slightly transverse in outline, dex-enth truncate-ovate and about as long as wide. Pronotum somewhat transversely suboval. about a half wider than long, widest at the middle; di.sc moderately evenly convex, rather densely and more or less evenly punctate, ])unctures moderate in si/e, becoming granulate at the sides; apex subtruncate in circular arc. obsoletely l>eaded ; sides evenly and rather strongly rounded, more or less constricted or sinuate at basal ninth, thence .straight or oblique 340 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. to angles, jiiiuginal bond more or less reflexed aiul somewhat entire; base feebly I'ounded and feebly beaded, scarcely a seventh wider than the apex and equal to the length; apical angles obtuse, sometimes distinct and at others feebly rounded; basal angles subrectangular and not at all prominent. Propleunv more or less coarsely and rather sparsely muricato- granulate, more or less rugulose on the acetabular convexities. Elytra oval to somewhat oblong-oval, about a third longer than wide and widest at the middle; hose subtruncate, wider than the con- tiguous prothoracic base; humeri more or less obtusely rounded; nides evenly arcuate, apex not broadly rounded; disc more or less mod- erately convex on the dorsum, rather strongly, evenly, and not very broadly rounded at the sides, arcuately declivous posteriorly; surface coarsely punctate, punctures irregularly placed, with a tendency to coalesce in tAvos and threes, rather simple and with a feeble corroded appearance on either side of the suture, becoming muricato-tubercu- late laterally and on the apex. Epiplcunv moderate in width, gradually narrowing from base to apex, superior margin rather strong, scarcely sinuate beneath the humeri, where it is sometimes slightly visible at the angle from above; surface usually impunctatc and smooth. iSterna densely and rather scal)rously sculptured. Parapleiine coarsely and rather densely punctate. Ahdonicn more or less shining, quite coarsely and densely rugoso- jjunctate, especially about the coxfc; last two segments more finely, less densely punctate, and not rugose. Legs moderate in length and stoutness; anterior femora mutic; anterior tibial spurs rather small and similar in the sexes, the an- terior slightly longer and just noticeably stouter than the posterior; anterior and middle tarsi dissimilar in the sexes. M(de. — Oblong-ovate, somewhat narrow. Antenniv attaining the prothoracic base. Elytra arcuately and somewhat obliquely decli- vous behind. Abdomen slightly oblique, moderately convex, broadly and rather strongly impressed at middle of the first two segments. Anterior tarsi with the first two joints not noticeably thickened at tip beneath, each with a small tuft of yellowish jmbescence, tufts subacute; first joint of the middle tarsi bearing a small tuft. Fcnwle. — Ovate, somewhat robust. xVntennie not attaining the l)rothoracic base. Elytra arcuately and almost vertically declivous posteriorlv. Abdomen horizontal and rather strongly convex. An- terior tarsi with the first joint slightly thickened at tip beneath, groove .scarcely interrupted by the apico-marginal si>inules. Measvrcmcnfx. — ^lales: Length, IT) mm.; width, (5.3 mm. Females: Tiength, 14.5-17 nmi. ; width, 7.3-7.5 mm. REVISION OF r.LKODIINI" MLAISDKIJ-. 341 Genital c/itn-tirfirs, nuilr. — KcU'ii^ophorc clon/j^atcly ohloii;; ovate and ^li^htly ai-clictl. liiisdh cloii'jfalt' (»l)l()ii^. sli^lilly narr.)\viiittom of the sinus, the latter rather deep and trianfrnlar. Frnnilf. — (ienital seiiinent trianed; surface nearly plane, well chitinized. and sparsely setose. Valriihi (Plate ('>. IIlt. 1). Dorsal plate oblonji, four times as lon<; as wide; surface nrjabrous and >hinin<2:. sli«rhtly concave, very sparsely ])unctate and setose in ajiical moiety, setie-fine; sides parallel and more or le>s feebly arcuate or sinuous; apical mar'rin evenly rounded. Apex short and more or less chitinized. iiuely and rather densely >etose, seta* slightly longer at tij). Appi'fi(fal plate. seta> just noticeably lon^rer about its mar<;ins. Supenor pudendal membrane longitiulinally ruii^ulose and attain- in(is(d jfroniim nces scarcely evident. Ventrolateral ton'faccs llattened centrally to base, triangular, sur- face lines straight, viewed longitudinally; laterally nioderately rounded. Submarginal groove well devel<»ped beneath the al \)\:\{>\ and attaining the fos.sa, surface scarcely at all concave befoiv the apex. Internal margins of the valves contiguous in basal two-thirds; genital lis-ure narrow in apical third, inferior pudendal membrane not visible. Ilahitaf. — California (San Diego (^)unty). I have taken this -pecies upon the HoKan Mountain, which borders Warner's ranch. It probably occurs throughout the Cuyamaca Kange. also at Poway (elevation. TOO feet). Examples are befoi'c me from the P>lanchard collection, and others received from D. W. ('(M|uillett a number of years ago, all. however, fr(tm the ab(»ve-named county. 342 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Number of specimens studied, 9. Types in my own and Mr. Elanchard's collectftns. Type-locality. — San Diego County, California. Salient tij pe-characters. — The buccal processes of the gense are pro- duced and anteriorly prominent. Pronotum moderately convex; apex subtruncate in circular arc; sides rather strongly rounded, con- stricted at basal ninth, thence straight to the basal angles, the latter subrectangular; apical angles obtuse and distinct. Elytra about a third longer than wide; humeri obtuse and rounded, epipleural margin just visible from above; disc coarsely punctate, punctures somewhat eroded, noticeably coalescing in twos and threes, simple about the suture, muricato-tuberculate laterally and about apex; the most peripheral are distinct and shining tubercles. Diagnostic characters. — Smaller and similarly sculptured to con- sohrina., to which it is closely related, and easily separated by the unusually developed buccal process of the genaj that are anteriorly produced and somewhat acute. An example before me, and kindly given me for study by Colonel Casey, apparently belongs here. It has the thorax very coarsely and densely punctate. There is also a tendency for the punctures to coalesce. In fact, it is more strongly sculptured throughout than any other specimen of hlanchardii at hand. A fenuile taken on the Bolcan Mountain approaches it and comiects it with the typical speci- mens. Casey's specimen has the buccal processes very slightly promi- nent and not narrowed. It is without doubt heterotypical of the present species; in form it agrees with a male in Mr. Blanchard's collection. It should be noted that the elytra are shorter than in consohrina. I take great pleasure in remembering the kind and painstaking aid accorded me by Mr. Frederick Blanchard. General observations. — The mentuni is comparatively large, but variable in size, slightly transverse and parabolic in outline, some- times less strongly rounded at the sides; surface rather broadly convex at the center and narrowly subfoveate Avithin the lateral mar- gins; not noticeably setose. Pro- and mesosternum as in consohrina. The metasternum laterally between the coxa^ is as long as the width of a mesotibia at the midille. The abdominal process is subquadrate, and a fifth (fenuile) to a third (male) of its Avidth broader than the metasternal salient, also equal to the post-coxal part of the same segment, equal to the length of the third (female). In the male the second segment is twice as long as the fourth, the third being a third of its own length longer than the fourth. In the female the second is twice as long as the fourth. The tarsi are of moderate length and not as stout as in consohrina. RKVISIOX OF KLKODIINI — BLAISDKLL. 343 Tarsal I'oninila : ITu M.S.. >J.iii. M.tiitlbla. MaU'.— li 2i ■•{ Ti Feuialt'.— 2 ' 2| 2 J 5 ELEODES FUCHSII. new species, Ovato, suhojinqiio. protliornx roiTij)iira(ivoly small. Klytra sub- aspenUcly irraiiiilatc iati'ially and on apex. Ihrnl alxmt twif^ as wide as \o\\*i. more oi- less feebly convex, impressed laterally and usually alon^ (lie fiontal suluri', the latter more oi' less bisinuate and fine, sides not veiv in'oinincnt. more or less eveidy |)nnetate, punc- tures moderately line ami not \eiy ilensely placed. Aufciinit' rather lon«r, feebly compressed and sli«rhtly widened in the outer four joints, third joint scarcely as lon«; as the next two combined, the fourth to the eie,v slightly and evenly enuuginate or truncate in circular arc, obsoletely margined; aides rather strongly arcuate, less so behind the middle, where they aj^pear somewhat oblic////r/vc small and short mammillifoini. with a pencil of moder- ately Ion"; seta' at tip. Supt lior jnnh'iiildl nicmhnnic more or less louiritudinaily ruifulose and attaininf": the apical fourth of the dorsal |)lat«'. Basal pvoniincnccs not evident. Ventf'ohiteral surfaces flattened centrally to base, rounded laterally; surface smooth and iu)t noticeably setose; sides feebly concave later- ally before the apices, and the submar*2:inal jjroove broad beneath the.explaiuite external border of the dorsal plate. Internal mar- gfins of the valves conti<;uous in basal two-thirds; «jenital Hssure in apical third, moderately wiile and fusiform. Inferior pudendal mem- brane not visible. Ilahitdt. — California (Tulare County, at Colony Mills, elevation 5,415 feet. Giant Forest; Marble Fork, Kaweah River, elevation 5.'J()0 feet. Kaweah to Proj^ress Springfs. elevation. 1.000-1.740 feet. Col- lected by Charles Fuchs and Ralph IIoppin«r). Number of specimens studied, 90. Sexitypes in my own collection; co-types in the collections of Van Dyke, Fuchs. Iloppinjr. and my own. Type-Jocaltty. — Colony Mills, Tidare County, California, Salient ti/pc-rharacten. — Pronotum comparatively siuall, appar- ently subcordate, the sides rather str()n«^ly arcuate anteriorly, behind the middle less arcuate and very slightl}' convernrinfr. constricted in basal seventh, thence (piite strai none the dor-um i^ moderately convex; the humeri are broadly rounded in both sexes. Such examples resemble (on,soOriiia. 346 BULLETIN 6.3, UNITED STATES NATIONAL MUSEUM. Ill other specimens the humeri are obtusely rounded and the su- perior epipleural margin is often visible from above, the thorax wider and more evenly rounded at the sides, and the general form resembles parruollis. The integuments are more or less opaque. Fuchsii appears to be intermediate between consobrina and parvi- collis. I at first associated it with the former and then with the lat- ter as a race, but ct)uld not satisfy myself as to which species it is most closely related, and therefore detcnuined on the intermediate course and give it specific standing. It can be recognized from confiohrina by the more finely and much less densely sculptured abdomen and more cordate prothorax; from pdrvicollh by the narrower prothorax and the more i arc iiidtlciatr in l('ii;.''tli ami not \t'r\- -lioiM : there is evi- dent variiition in tli*- iiidix idiiair- of (he M-rio licforc me. Tarsal forninia : l'r.> M.sn. MiMii. .Mrlntil.lM. Male.— 2j Hi 3i Female.— 2 2§ 3i Si ELEODES NEOTOM^. new species. Ovato, inodoralely robust, sliininp:. and smooth, stronply convex: P^lytra scarcely asperalely nmricalely pniiclate. II<(i(l twice as wide as lonjr. teelijy cdMVex. more or less impressed hiterally and alonir the frontal sutnre. the latter nsnally evident a.s a £rlid>i(>Ms line, (|nite excnly and n(»t veiy den.-ely j)nnctate. pmictnres niodeiate. sides scarcely at all prominent. Anfiium moderate in !en:ined, slitrhtly wider than the apex and about eiii;ill and tri;iii;rid:ii-, finely setose, li|) nppaicnlly willioiit l()ii<;ei' selje, fossa at llic Ua^-c of the external siiiiacc Ap/KiKliitu' sliort maiinnilli I'drni. wilh (nil (d' moderately loii^ setie at tip. ISujH i-ior juidt mldl iii( iiihniiu not rn^nlox- and atlaininj^r the a|)ical fourth of the dorsal plate. Hdsdl //romhicncc'ff very small. Vcntrohitrntl xiirfaccs flattened centrally lo hase and convex later- ally; each lateral snrface smooth, sparsely and finely |)unctate. setose, seta* minnte, slifjhtly concave Ixd'ore the aj)ex. Snlnnai'^'inal ufrooxc small beneath the extei-nal bordei- of the doi-sal plate, which is }K>t ct'phiniitc, a|)ex linely setose. Internal mari^ins of the valves con- ti^iion> in basal two-thii'ds; ijeintal fissnre in a|)ical third, not vei'v narrow and fusifoi'm. Infei-ior |)ndendal membrane not visible. Ildh'ttiit. — California (San Diei^o Connty; Port Harford, San Luis Obispo County). I have taken this species from old stinuj^s at Poway. elevation 700 feet; from wood-rats' nests on the hills bordering Mission \'alley, near San Diego, elevation 300 feet. Number of specimens studied, 14. Sexitypes and co-types in my own collection. Type-localitii. — Mission Valley, near San Diego. SdVunt tijiH'- rathei- coarse, not deej), rather simj)le centrally and muricato-granuhite laterally. Abdomen \ery strongly and densely sculi)tured, last two segments nuich less so. I)i(t(liio.st}c clidrdctcrs. — One of the most convex sju'cies of the sub- genus lildpt/lix, and can not be confounded with any species, except inciilfd, /lomiiy connohr'nid, and /xirrhoUis. Professor Fall has very carefully couijiared it with ty|)es in the LeConte collection and ft)und it not to corres|)ond with any named species. Inriilfd is more robust and with the pronotum moic transxcrse, especially in the female, the integuments are duller. The prothorax is not distinctly constricted at base and tlH> abdomen is finely scidj)- tured. XeototHd is no doul»t clo>ely relateli<::. sli^jlidy cuincx. fccMy iinpiTsscd liit('i:ill\ . IVoiiImI >iitiir(' not evident, distinctly, ratlierly coarsely, and (luite densely pMiiclate. A/if< iiiin (jnite l<)n*r. nioderate in stout- ness, onler (lii-ee j()in(> sli«rlitly conijji-essed and feebly dilated, third joint e(|iial to tlie next (wo laken (o<:e(lier. fonrtli to the sovonth in- clusive sulM'(|ual, ei^dith scarcely shorter and sli<;htly trian<;ulai'. ninth and tenth ti'ian nnn. ; width, 7^.i^ nnn. Female: Length, 13.5 nnn.; width, 0.5 mm. Genital eharacters., male. — Edeagophore oblong-ovate, somewhat flattened and quite strongly arched. Basalc oblong, about twice as long as wide, rather strongly convex; sides moderately arcuate. Ap'tcale triangular, moderately convex above, without groove; sides moderately sinuate, apex subacute and apparently i)roduced; base with a moderate, rounded median lobe and sinuate laterally. Sternite rather short and transverse, triangulo-parabolic in ont- line. Each lobe subtriangular; surface feebly convex, glabrous, rather finely and quite densely punctate toward apex, setose, setae moderate and rather fine, not v(>ry long; external border oblique and feebly sinuate in basal half, thence obliquely truncate to apex, or feebly arcuate so as to appear subangulate at middle; apex subacute and distinct; internal margin straight or feebly sinuate and oblique. Membrane not setose across the bottom of the sinus, the latter tri- angular. Female. — (ienital segment (Plate 5, fig. 15) obtusely triangular, moderately depressed, dorsal surface of each valve more or less slightly declivous externally, apex setose. Valeula. — Dorsal plate oblong, glabrous, almost impunctate; sur- face more or less distinctly concave; external border slightly arcuate, the internal more or less sinuate; apical margin more or less evenly rounded. Apex short and rather thick, finely setose, seta^ at tip rather long. Fossa at the middle of the external surface of the apex, the setae rather long around its margin. KKVISION OK KLKODIINI — lU-AISDHLh. 353 A i>j>i inhii/c short iiiMiiiiiiiHi fonii. with ;i pcin-il of rnlluT \y)\\\r -clii- at tip. Siijxrioriniiliiiiliil im uihrum iippMrciit ly not niijiilox' ;iiitl imiIm'I" broadly fxposod, rciu-liiiii,^ alioiil to the apiciil liftli of the ilorsil philc. Bosdl /troi/n'/icncfn not I'vidciil. Vcnfi'itldfi I'ltl Kill-fares sliriefly straight to the basal angles. Elytra gradually widening from ea<-!i extremity to middle, humeri obsolete, surface with simple punctures at center of the dorsum, becoming subnniricate laterally, with a ten- dency to coalesce transversely in twos and fours. Dhiffnoatic c/t a farters. — By its smaller size and moi'e graceful form, smooth integuments, narrower and distinctly oval elytra, rather pro- portionally larger prothorax, which is somewhat remote from the elytra, and distinctly less convex form, homii is sufficiently distinct from ronsohriiKi although derived from the same ancestral stock. Xeotonia' compared with homi'i is larger and >trongly convex; the male is much less narrow. In f>irltsti the integuments are opa(|ue and the humeri are moi-e distinct, although often broadly rounded; the elytra are broader and much more strongly convex — even somewhat inflated (female). In /Kirrfro/fls the humeri are generally strongly evident and the prothorax distinctly constricted near the base. /*arri< rj/l.s var. tinct, and the elytra in the males are more oi)long oval and not narrowing somewhat «'(iually each way from the mid7so Miiii.(>:] -oi) ii3 354 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. In Hcahroaa the coarse sculpturing as well as the setose propleurse will serve to differentiate it from hornu. ♦ Three males out of the five specimens before me were collected at Mokelumne Hill, Calaveras County, and are no doubt heterotypical ; they are suboijafjue, larger, the elytra are a little more strongly sculp- tured than in the types; the prothorax is a little more strongly con- stricted at the base and the basal angles are rectangular. The narrow elytral base. Avith the sides very gradually widening to the middle, and the obsolete humeri {>iee Plate 12, fig. 33) give homii a characteristic facies, the prothorax appearing somewhat remote from the elytra. General ohscr rations. — The mentum is rather small and subpara- bolic in outline; the surface is distinctly convex at the middle and subfoveate laterally; the punctures are fine and quite dense laterally, not noticeably setose. The prosternum in the types before me is not suddenly protuberant ventrally with the coxa', although rather strongly and gradually so, evenly arcuate antero-posteriorly, and not in the least mucronate behind. ^lesosternum arcuately declivous, feebly and broadly concave. The metasternum laterally between the coxa' is as long as the width of a mesotibia at middle. The al)dominal process is subquadrate and about a fourth of its width broader than the metasternal salient, equal to the length of the post-coxal portion of the same segment, and also to the second. In the male the third segment is about a fourth of its length longer than the fourth. In the female the third is slightly shorter than the second and about a fifth of its length shorter than the fourth. The tarsi are moderate in length and rather slender. The protarsi of the male are noticeably longer than in the female, and about a fourth (male) or two-fifths (female) of their length shorter than a mesotarsus. Tlie mesotar.si are about a fifth (male) or about two-sevenths of their length shorter than a metatarsus. The metatarsi about a half (male) or a third (female) of their length shorter than a metatibia. Tarsal formula : Pro. Meso. Mota. Metatibia. Mah>.— 2 '2\ :? 4j FiMiialo.— In '11 :5 4 ELEODES PARVICOLLIS Eschscholtz. Kh'oiUa iiiirricnlli.s EscilscilOLTz. Zonl. Atlas. III. 1 s:;."'.. p. 11. — >L\NNKr- HEiM, Hull. Soo. Nat. Mnsiow. XVI, 1S4.3. \k 271. — LKro.NTi;. Proe. Acad. Nat. Sci. riiil., ].sr.S, p. 1S2.— Horn, Traus. Auier. Phil. Soc., XIV, 1870, p. ;;i7. HKVISION (»!• i:i.K()l)IINI — ULAISDKLL. 855 vnr. itlmnifii Kstiiscnoi.Tz, Zool. All.is, III. is;;:;, p. 11. .Mannkkiikim, Ituii. Soc. .Niit. Mo.s, p. ^.IT. var. iiiiistrichi LiCo.nti:. I'roc. .\(!i(l. Xal. Sii. I'liila.. ls."s, p. IsT. Siihoviilc, :il)(>iil twice as loiiu: as w idc. iiioiv or less shiiiiiij;. thorax radici- roar<<'ly i)iit not coiilliii'iit ly |)iiiir(al(', evenly rounded at the -i(h's and di-linctly (•(in-lricled at the hase; elytra oval. oiic-foMith to one-third lonircr than wide, coar.-ely punctate at middle. >nI)innri<"ito- ^ the next two taken top'ther. fouiih scarcely lonirer than the fifth, the latter to the eit the least transversely oval, eleventh short-ovate and as lon^ wide. ProHotiim somewhat transversely ol)louir-o\al. two-fifths to a half wider than loni^:. widest at about the middle; d'tsc evenly and moder- ately convex, somewhat arcuately declivous at the a|)ical an; straiirht and parallel to the ba-al aiiirk's. marcomin pro- thoracic base; hmm ri rounded, more or less obtusely >o. not promi- nent; .svV/c.v eveidy arcuate, apex not very nairowly roundi'd; disc modei-ately convex, not distinctly flattened on the dorsum, stronjrl.v and not wvy bi-oadly nUinded lati-rally. inllexed portion but feebly convex. ai'<'iiately d«'cli\ous ])o, last two segments less strongly so. Legs comparatively slender, and about moderate in length. An- terior femora mutic; anterior tibial spurs quite similar in the sexes, the anterior slightly longer and just the least thicUer than the pos- terior; anterior and middle tarsi dissimilar in the sexes. Male. — Somewhat narrow, subovate. Antenna^ reaching a little beyond the base of the prothorax. El3'tra somewhat feebly convex on the dorsum and rather narrowly rounded at the sides, arcuately and slightly obliquely declivous behind, somewhat distinctly nar- rowed apically. Abdomen more or less oblique, moderately convex, first two segments more or less broadly flattened or impressed at middle. Anterior tibia> moderately constricted at base. Anterior tarsi with the first two joints feebly thickened at tips beneath, each with a moderately small truncate tuft of golden pubescence; first two joints of the middle tarsi with very small tufts at tii)s l)eneath. grooves feebly interrupted. Female. — Robust and ovate. Antenna^ scarcely reaching beyond the base of the prothorax. Elytra more or less evenly and arcu- ately declivous, or vertically so posteriorly. Abdomen rather strongly convex and horizontal. Anterior tarsi Avith the first joint slightly thickened at tip beneath, grooves distinct. Two forms may be recognized : Forma typica. — Moderate in size, surface somewhat shining, shorter ovate. Elytra submuricato-granulate laterally and on the apex. In the males the elytra are rather obliquely narrowed in apical third; females have the elytra moderately convex on the dorsum. Measurement fi. — Males: Length, 13-14 mm.; width, 0-6.5 mm. Fernalffi: T^ength, 13.5-10 mm.; width, 7-8 mm. Forma farallonica. — Larger, somewhat dull, slightly l(»ngi'r ovate, thorax a littU' more transverse. Elj'tra more granulate laterally. In the females the elytra are scarcely more convex than in the male. Mcdsiirciix'tif.^. — Males: 'I jQWfrih, 10-10.5 mm.; width, 7-7.5 mm. Fcnidlis: Leniith. 1-") 17.5 mm.: width. 7-8.5 mm. REVISION or KI-KODIINI — BI.AISDFILL. 357 Genital characters, male. — Edcajroplioic iloiiH^atcIy (il>Iacutely lolu'd at the middle and sinuate hiterally. Stcrh'ttc transversely paialjolic in outline. Eadi loho frinnrjiilar; external holder (piite straiixht or l'e<'l)ly arcuate in hasal two-thirds, thence sui)trnncate oi- feebly arcuate to apex, the latter obtuse; in- ternal niar, fig. 4). — Dorsal plate elongate oblong, slightly narrowing from base to apex; surface smooth, feebly convex, very sparsely and feebly setose in apical fourth: external border moder- ately arcuate, scarcely at all expanded ; apical margin not defined from the apex, scarcely wider than the apex at base, angle obsolete; internal border broadly and feebly sinuate. Apex small and more or less membrano-chitinous, feebly setose. Appendage small mammilliform with a pencil of quite long seta; at tip. Fossa small and at the middle of the external surface of the apex. Ba^sal prominences scarcely evident. Supr pmh nihil nicmf/ranr longit ulightly wideneil apically beneath the scarcely explanate external border of the dorsal plate. Internal margins of the valves contiguous in basal two-thirds; genital fissure narrowly fusiform in apical third, and the inferior pudendal membrane is not visible. //ahitdf. — Califoiiiia (region about San Francisco Bay; San Joaquin and Sacramento \ alleys: iiills along the coast in the central part of the State), Farallone Islands. Xumln'r of specimens studii'd. .'^7"). 'rv|)e in the Fsehscholtz collection? Tijpe-locality. — Near San Francisco. 358 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Salient type-cJiamctcrs. — Antenna,' liilifoini. Thorax rounded, base narrowed, punctate. Elytral dorsum with huger and slightly im- pressed punctures, sides granulate (Eschscholtz). Diagnostic characters. — Eschscholtz saj's that the thorax is a little broader than long, the greatest width being in front of the middle, sides strongly rounded and smaller behind: the apex is faintly emarginate; the humeri are prominent and the sharp opipleural mar- gin can be seen from above. The sides of the elytra are rugosely granulate. I have examj:)les before me which have been identihed by Casey, Fall, and Blanchard. A female eompared 1)v Mr. Blanchard with the specimen received by LeConte with others from Europe " as typical parrUoIlis Esch- scholtz, is pronounced by him as " an exact copj^ " of LeConte's typical specimen. Professor Fall's and Colonel Casey's specimens, while a little larger, present no notable differences. My typical specimen does resemble a large female seahrosa, but it is without the hairs upon the sides of the prothorax. It is well to note that my series of typical parvicolUs was taken from ledges upon the hills about San Francisco, and not about the sand dunes where scahrosa abounds. I do not agree with Doctor Horn in considering the large aggregate of specimens referable to parricollis as one species without the recog- nition of well-marked races; in so doing I consider that it would be a retardation to our knowledge of these forms, and I shall in this jjajjer consider planata, ptodvcta, and ronstricfa as valid races. I have studied an immense series and feel warranted in so doing. My disposal of scahrosa will probably be a surprise to many, but it appears out of place when associated with parricollis. In parricoU'is the pronotum is rather less convex and the base more strongly constricted than in co)isohr!na, where the sides of the elytra are more coarsely and tuberculately sculptured. Proihicta is oblong, flattened on the elytral disc, sides ])arallel with prominent humeri, which are strongly nuirgined by the su^^erior epipleural margin. PJanata has the elytra less flattened, humeri less prominent, with the elytral sides evenl}' arcuate and more gradually narrowed behind. Pari'icoUis is shorter and more ovate. Prodiicta inhabits the mountain regions chiefly and planata the valleys and foothills where there are oak groves and where smaller exam})les of prodacta are also found. Constricta occurs chiefly in the middle altitudes of the Sierra Xevadas as far north at least as Mount Shasta. These races overlap in their distributional areas: s-) do other races and sj)ecies. » Horn's Itev. Ten., p. 317. HKVISIOX or KLKdIilINl- lU.AISDKI.L. 359 CciKiiil ohscnuttions. — 'I'lic iiiciiliiin is varialdc ^iiiiill, aiul para- lM)lic (male) oi- (•<)mj)ai"ativ('ly Iai'«rt' hikI trapezoidal or tiiaii«riilo- tnipc/.oidal ; siii'face Ncrv f»'('l)ly convex at middle, and hroadly. very f«'el)Iy siil>foveatc laterally, finely lint no( distinctly pnnctate. not notic<>al»ly setose. Tlie pi'osterniini is not strongly protuberant with the coxa>, and (piitc cxcniy ai'cnatc antei*o-|)osteriorly between the coxa', soineUnies more or less vertical behind: rarely snbiniicronute. Mesosterniini arcnately declivons and more or less concave. The metasternnm laterally between the coxa* is as lonjjf as the width of a mesotibia at apex. The abdominal process is quadrate (male) or sli<;htly transverse (female) and about eijual to (male) or a fourth (female) of its width broader than the nietasternal salient. In the male the ])ost-coxal part of the first abdominal se<;ment is abcMit ecpial in lenjrth to the second segment; the third is ecpial to that of the process and about a third longer than the fourth. In the female the post-coxal part of the first segment is about equal in length to the process, also to that of the third: the second is twice as long as the fourth. The tarsi are variable in length and stoutness: although moderate in length they are noticeably longer and slender in some males and females, and stouter in others, and this appears to be independent of size in the specimen. Tarsal formula : I'r... M.so. Mcta. Metatibia. Male.— 2i 3 3i 5^ Female.— 2 2i 'A 4i ELEODES PARVICOLLIS van PLANATA Eschscholtz. Subfusif(>rm-o\ ate to o\ate. integtmients fi'cbly shining, twice as long as wide. Antenna' long. Klytra depressed and graiuilate laterally. Head twice as wide as long, feebly convex, rather strongly and broadly impressed laterally, also more or less along the frontal suture, the latter rather feebly evident, supra-antennal convexities (juite strong; surface rather densely, not very coarsely punctate, punctures denser laterally and on the epistoma. Aiif< nmv rather long, moder- ately sleiuler, outer four joints slightly compressed and feebly dilated, third joint a little shorter than the next two combined, fourth ap- parently just the least longer than the fifth, the latter to the eighth inclusive e«|ual in length, the eiirhth subtriangular and longer than wide, ninth triangular and as wide as long, tenth triangulo-oval, eltncntli subovatc and a< Iomlt :>"> wide. 360 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Pronotum somewhat transversely obloiig-oval. widest at the middle, and more than a half wider than long; disc evenly and moderately convex, more or less flattened along the lateral margins, quite densely, more or less irregularly, and rather coarsely punctate, punctures not confluent, granulate on the impressed sides; apex evenly but not deeply emarginate. more or less obsoletely and finely margined; sides evenly and broadly rounded, strongly constricted at about basal eighth, thence somewhat oblique, straight, or sinuate to angle, mar- ginal bead thin and rather distinctly reflexed. becoming a mere line on the constriction; hase truncate or feebly rounded, not strongly margined, a fifth to a sixth wider than the apex and a little greater than the length: apical angles obtuse and not prominent; basal angles slightly jiromiiR'iit. Propleurif as in parcicollis. Elytra oval, widest at the middle, a third to a fifth longer than wide; base subtruncate, equal to or distinctly wider than the con- tiguous base of the prothorax; Jntmeri obtusely rounded, gonietimes prominent ; sides evenly arcuate, apex somewhat attenuate, not broadly rountled ; disc depressed and moderately convex, strongly but not broadly rounded laterally, inflexed sides oblique and feebly convex, arcuately declivous posteriorly; surface coarsely and irregularly punc- tate, somewhat foveolately so, punctures quite simple about the suture, series evident centrally when viewed longitudinally, not coarsely muricato-granulate laterally and about apex. Epi})h'iir:il ])l!itt' ^■lioiild III". Pt'iiiil of Ii:iii- Ml ti|) nf ;i piicikIml''" <|int(' loiiL'. ()llM'r Avisc as in purriroHis. IldJ/ttdt. — ('iilif(»i-ni:i (lvii>si:iii sctllfiiictit. V\)\[ lloss, Escliscliolt/. ) . My series is without (Idinitc locilily (l:il:i iiiid were |)r<»I)al)l\' lollcrtcMl i)y Mr. G. W. Dunn. NuiiiImm' of spcciinciis stiidit'd. (W. Type ill the M>i(i(iinistic clKirdcfcrs. — Kschscholtz says that the thorax is much Itroadei' than louii'. >^ti'oniily lounded on the sides and with the nar- row maririn-^ more or less stron^sed, the elytra are more distinctly oval, and more «jradually declivous behind in the male, and not as roughly sculptui'ed; there is moie or less evidence of a sei'ial arrangfement of the i)unctures on the dorsum: there the punc- tuiH's are simj)le and the strial |)unctnres are arranired in a strai«rht line as usual, but greatly obscured I)v the very irrcirularly diti'used in- ler>titial puncture^, both being of the same size. I can not discover any signs of a serial arrangement in the ty|)ical parvicollis, where the sculjituring is coarser ami more scabrous. Profhicta is distinctly oblong, with the sides of the elytra jjarallel, the dorsum distinctly flattened and with the humeri very i)rominent in both sexes. Of cour>e the extremes are more dillicult to sejiarate, but I consider them no more so than in some parts of (he viibgeinis .][< hincho^hs. 'I'wo males before me are very coarsely and den-ely sculjitured. ( )ne from Trinity County is especially so: the elytral punctures on the dor>um >how evideiice of serial arrangement of the intei->^titial pinictui'e>; both ^erie^ ar<' of the same >i/,e and submuricate. laterally the punctures are muricato-tubeiculate. approaching /ontiohrinu and 362 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. homii^ from Avliicli it is separated by the epipleune being dilated beneath the humeri and the superior margin distinctly visible from above, there forming the sharp arcuate margin of the rounded humeri. A Humboldt County specimen is similar, but less strongly devolojjcd. General ohserimtions. — The mcntum, pro- and mesosternum. are as in parvieoJlis. The metasternum laterally between the coxtc is as long as the width of a mesotibia at the middle. The abdominal process is subquadrate and a third (male) to a fourth (female) of its width broader than the metasternal salient. Tn the male the post-coxal jjart of the first abdominal segment is equal in length to that of the process, also to that of the third : the second is one-half longer than the fourth. In the female the second segment is equal in length to the process; the third to the j^ost-coxal ])art of the first and a third longer than the fourth. The tarsi are variable in tliickuess. Imt moderate in length. Usually more slender in the male. Tarsal formula : Pro. Meso. Meta. Metatibia. Male.— 2i 3 4 5 Female.— 2 ~ s" 3~ .T ELEODES PARVICOLLIS van PRODUCTA Mannerheim. Distinctly oblong to oblong-ovate, thorax transverse; elytra de- presvsed, sides parallel, humeri prominent and obtusely rounded. Head twice as wide as long, feebly convex, slightly impressed laterally and along the frontal suture, the latter more or less obsolete, densely, evenly, or irregularly and somewhat coarsely punctate, punc- tures denser laterally. Anfennrc somewhat long, stout, very feebly compressed and scarcely dilated in outer four joints, third joint about as long as the next two combined, fourth just the least longer and stouter than the fifth, the latter to the eighth, inclusive, equal in length, the eighth not noticeably wider than the i)receding two, ninth triangulo-oval, tenth feebly transversely oval, tenth ovate. Pronofiim transversely oblong-oval, widest at the middle, a half to three-fifths wider than long; disc moderately convex, feebly im- pressed laterally so as to appear somewhat dilated, rather coarsely and somewhat densely punctate, denser and .somewhat finely granu- late laterally on the impressed area; (ipcv more or less feebly and broadl}' emarginate, more or less obsoletely beaded; i^idcs broadly and quite strongly arcuate to l)asal eighth, thence constricto-sinuate to the angles, at times quite abrui)tly and tubularly constricted, with sides parallel to the angle, bead thin and reflexed, a mere line on the basal construction: hasr truncate or verv feeblv rounded, and usually REVISION or ELEOnilNI — IJLAISDELL, 363 (•hsok'tcly Ix'iidcd. :i lil'lli w itlri- tli:ili tin- apex and LTrcalcr '.liaii the Icii^'tli: apical aii<;k's sonu'wliat distinct or obtuse and not |)roiiiiii('iil : basal aiijrk's i-('ctiiii<;iilar or iiiiiiiilcly proiniiicnt. I*ro/)liiirn siiiootli. not densely grannlalo-nmiiiale ami iikhc oi' less iiiaultiM'. I'Jhjtiii ()l»l()M^^-()\ ale, aiciiatcly attenuate from the middle j)()s- (eriorly, al)oii( a tliiid louirei- (ban wide; hasi' broad and tiiincate, distinctly wider than the eonti»i;nous base of the i)rothora.\; huiiirrt obtusely rounded and moiv oi* less prominent; sidrs parallel in basal onediaM". thence arcnate to a|)ex, somewhat attenuate in apical thir:in is coarse and arcuately prominent, as viewed from al)ove. Otherwise as in /farritoi/is. Abdomen rather densely and somewhat, coarsely punctate, usually ilistinctly rujrulose. L('(/s stout and comparati\'ely moderate in length. Anterior tibial .spurs rathei- stout, the anterior more so than the posterior. Other- wise as in juirrirollts. J/r/A .--( )bloni:", somewhat narrow, antenuic just reachinu: beyond (he base of tlu' prothorax. First two joints of the pi'otai'si mod- eratt'ly thickened at tip beneath and there clothed with small tufts of piceo-llavate pubescence; the tirst joint of the mesotarsi has a small tuft also. Otherwise as in parricoUls. Fcniulf. — Obloni; to ovat(\ somewhat broad. Antenmv scarcely attaininifiif.—C\\\\io\\\\x\ ((liant Forest. Tulare County. Fnchs and IIoj)ping: "^'osemite, Mariposa County; Tuobnnne County; Calaveras (\>unty. Big Trees, elevation, 4. 70*2 feet; Amador and Eldorado i'onnti<'s). Number of specimens studied, ^^00. Tyj)e in the Maiuniheiiu collection? 364 BULLETIN G3, FNTTED STATES NATIONAL MUSEUM. Type -locality. — California; no special locality is mentioned by Mannerheini. Collector, D. Blaschke. SdUcnf typc-chdractcrH. — 01)lon. Molii. Mctatibiii. .Male.— 2^J 3 3^ 5J Female.— 2 li 3J 5J ELEODES PARVICOLLIS var. CONSTRICTA LeConte. Oblong-ovate, twice as loni:- as wide: surface (hdl to shinin apex. aniiiii ilciist'ly siil)S('i'iiit('ly puiictalc. liitciiiUy iiiitl on apex sc!il)i()ii> IVoiii iccliiwiti' <;iaiiul(>s, Aiilriiiia' sli«jhtly incrassate i-xtcnially. Lciiirlli ..'rj. (LcContc.) l>i(istir ( h(ir(irt('r.s. — This rac<' is r('m;irUiil)U' on accomil of \\\v. liaise and dense olytral sculpt miiiL'. somewhat like that observed in (orddtii, hut with the nnirieate eliaracter predoininatinji:; the head and thorax is more coarsely punctured than in jKtrricoilis or, its races al)o\e considered; in size the punctures approach those in corddfd. hut the intervals are perfectly Hat and smooth and small imi)unctate aicas are usually j)resent. 'Die liiinieri are prominent and the elytral disc flattened on the dorsum in the males es|)ecially. It is interestinjif to note that the fi'males are apt lo l)e robust and in form (|uite like conhitii, so nmch so that nu)st of them have heretofoic been placed with that species; the broader prothorax with sides broadly rounded separates con- stricts; in rotiiiidiix ini'is the prothorax is ru«»:oso-punctate. I have carefully examined the arvicoUhs group. It would be veiv instructive and an atlvance in our knowledge if it were possible to determine why the heterotypes of many species or races mimic other more or less closely related species. Is it ata- vism. hybri(li>m. or eiiviroiuueut ^ If LeC'onte's flescrii)tion of constricta be compared with the one given above, they will be found to agree in most point>. A s|)eciuieii before me, and which has been compared with the type by Mr. lUanchard, is pronounci'd by him as undoubtedly t/iat ft/rni descril)e(l by LeC'onte, from a specimen collected near Sacramento. I'he thorax is " ante basin tuhulatim const ricto.'^ It is possible that I am making a mistake in applying Le(^)nte's name to this mountain form. I have not seen any specimens from ihe vicinity of Sacramento. It is possible, of course, that the rivers may have carried in«lividuals down from the higher altitudes, and in this way poi)ulate(l this |)articular region and elsewhere, for that 'natter. I will (juote Le(."onte"s remarks upon constricta: Kelateil to /•;. inndurld, Itut tlie l»ase ( prothoraele), thoujih net narrower llian tlie apc'-x, is inneli more constrlcttHl tlian In that si)ecies, so that the sides lte<'onie inipres.*a(ler. more ronmled on the sith's, tlie hnnieri are l«'ss Itroadly proilnced and fouspienonsly niar.u'hied. and (he si(h>s are more nuii^li \vieade(l ahnost to the ha.-e. the hitter very i'eeMy loinided. n(»t distinctly niar^nned. a seventh to a fifth wicU'i" than the a|)ex and al)ont e(|iial to the h-n^rth: apical an<^les ohtnse and not ronnded; basal angles sni)rectanss iiignlose. EhjtiHi oval, al)ont a third lonijer than wide, widest at the midtlle: base subtruncate and a little wider than the contigiions prothoracic base; hnineri obtusely ronnded and not i)i-(iiiiinent ; sides evenly arcuate, gradually converging in apical fouith. a|)<'X rather narrowly lounded; d'isr rather feebly and evenly convex, somewhat flattened on the dorsum, rather narrowly, e\eidy, and somewhat strongly rounded laterally, arciiately declivous behind; fiurfdce densely and rather finely sculptured, punctures about simple centially along the suture, uun'icato-granulate laterally and on apex. K jiijih urn moderately wide, not dilatecl beneath the humeii. superioi- luargin not visible from above; surface vi-rv sparsely and finely pinictate. Sterna not coarsely jiunctato-iMigulose. Parapleurn' densely and not distinctly punctate. Ahdonun nu>re or less shining, quite densely j)Mnctate and rngu- lose, most so al)out the coxa\ Legs short and moderate in stoutness. Anterior fenu)ra mutic: anterior tibial spurs similar in the sexes, the anterior a little stouter than tiie posterior; anterior tarsi dissimilar in the sexes. Male. — Somewhat narrow. Klytra arcuately decliv(»us posteriorly. Abdomen feebly obli(|U(>. moderately convex and imjiressed at middle of the first two segments. First two joints of the jjrotarsi uot notice- ably thickened at tips beneath, each bearing a minute, browui-h. and rather pointed tuft of pubescence; first joint of the mesotarsi without tuft, groove distinct. Female. — Somewhat robust. Elytra arcuately and vertically de- clivous behind. Abdomen horizontal and rather strongly convex. First joint of the protarsi noticeal)ly thickened at tip beneath, groove quite distinct. MeaHinriDoits. — Mtdc^: L«>ngtii. 12.5-13 nun.: width. ')..") mm. J-'i - males: Ix»ngth, 13 mm.: width. 0.2 nun. Genital rharartert, male. — Edeagophore elonL'ately ohlong-oNate. acute at tip and slightly arched. Ihisidc oblong, two and a half times longer than witle. e\enly con- vex, sides parallel and -lightly arcuate. 50780— Bull. (UJ— «> 24 370 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Apicah' triangular, a little longer than Avide: surface moderately convex, without groove; sides strongly and broadly sinuate, apex appearing attenuate; base obtusely lobed at middle, feebly and broadly sinuate laterally. Sternite transverse; each lobe triangular; surface feebly convex, not very densely punctate, setose; seta' moderate in length, gradually longer about apex; external border rather evenly arcuate and oblique, apex introrsely placed and obtuse ; internal border more or less sinu- ate and oblique. Membrane not setose across the bottom of the sinus, the latter triangular. Female. — Genital segment somewhat depressed, about equilaterally triangular, dorsal surface feebly ogival, feebly setose. Valvula. — Dorsal plate oblong, three times longer than wide, sides just the least converging apically; surface more or less feebly con- cave, glabrous, very sparsely and finely punctured, sets? short; ex- ternal border feebly arcuate; internal border more or less sinuous; apical margin more or less arcuately rounded and only apparently defined from the semi-chitinous apex; the latter small, short and scarcely more j^rominent posteriorly than the appendage, blunt and more or less rounded, sparsely and finely setose with longer hairs, tip with a pencil of moderately long hairs. Fossa large, in the external surface of the apex. Appendage short triangulo-conical. with a pencil of long hairs at Superior pudei^dal membrane longitudinally rugulose, attaining the apical fourth of the dorsal plate. Basal prominences not evident. Ventrolateral surfaces plane centrally to base, surface lines straight when viewed longitudinally, laterally rounded ; surface glabrous, with a few coarse punctures scattered about, continuous with the semi- chitinous apex, not at all concave before the apex, the latter finely setose. Submarginal groove feeble at base, but well developed in apical two-thirds beneath the feebly dilated external edge of the dorsal plate. Internal margins of the valves contiguous in basal two-thirds; fissure narrow and in apical third, about closed, and the inferior meml)rane is not visible. Ilah'itaf. — California (Eldoiado County, on the way to the sunnnit above Eiverton, July). Number of specimens studied, 3. Sexitypes in my own collection. Type-locality. — Western slope of the Sierra Nevada Mountains. above Riverton, Eldorado County. California. Salient type-characters. — See general description. Diagnostic characters. — This species differs from parricolli.aiuc I'oiiii observed in pdrriroUis, is more hioadly rounded and more briefly sinuate at tlie base, the niar«rinal line nearly attains the anjrle. f'oi\- sfrlrftt, whicli oeeiirs in the same re<;ion. is much more stron«rly and coarsely sculpt iir<'d. the |)i«>thorax is stronjrly constricted at base. The wider j)ron()tum, snuillcr aiul less robust form. distin«ruishes hoppiiK/ii from <<)iis(>hriiieinortions of parts to correspond in the two sexes. The tarsi are slender and of moderate length. Tarsal form id a : Pro. Male.— n Mfso. - I MetM. 2J Mitatibia. 4 Female. — 1^ 2 n H ELEODES CLAVICORNIS Eschscholtz. Elcfidis cliirirtniiis 10s( iisi noi.iz. /<>i>l. Atlas. 111. \\v. X\'I. 1H4:5. I>. "JUit. — LkCo.mk. I'iik-. .\r:\t\. Nat. Scl. I'liila.. is.-».s. p. IS-J.— HoRX. Trans. .Vmer. I'hil. S:en. Itesa. Ins.. ls.">s. p. IMt. Oblong-ovate, about twice as long as wide, snudl. pronotal disc not ii(»ti -liort. Ahdnnu H liliiniii;r. \<'ry spaix-Iv punctate, hairs short. Lti/s coinparaliNcly iiiodcratr in Icnirtii and i:ith«'i- >I('ndcr. Antci-ior femora niutic: pi-olibial spurs about siniihir in the sexes, the aiucrior a little longer than the posterior; tarsi dissimilar in the sexes. Mii/i . — Body rather slender. Anteniue reaeidn*; a short distaiu-e beyond the base of the prothorax. Elytra evenly arcuately deeli- vous posteriorly. Alxlonien moderately convex, first two se<;ments distinctly inipres.sed at middh'. l*rotibial s[)urs sube(]ual. slender, and acute. I'rotarsi with the Hr-t two joints very feebly thickened at tips beneath, each bearintremrnff<. — Malcx: Length. 10.2-l'2.o nun.; width. 4.'J-r) mm. Femah's: Length, 1'2-13 mm.: width, o.'i-O mm. Genital (Imnictci's^ iikiIc. — Edeagophore elongately oval and scarcely arched. Bdfidle oblong, not three times as long as wide; surface evenly con- vex, with sides feebly arcuate. Apicdlc subeqnilaterally triangular; surface rather strongly con- vex, without groove; sides distinctly sinuate in apical two-thirds, arcuate in basal third; apex more or less attenuate and acute; base broadly lol)ed at middle and feebly sinuate laterally. Sternite transverse. Each lobe triangulai". with the external bor- der more or less sinuate in basal half, thence more or less obliquely truncate to apex, the latter narrowly rounded; internal border more or less straight; surface feebly convex, spai*sely punctate in apical half, setose, seta* quite long, still longer (m apical margin. Mem- brane not setose across the bottom of the sinus, the latter rather broad. Female. — Clenital segment elongately triangular, superior surface plane. Valvula (Plate 4, fig. 11). — Dorsal plate narrow and elongately oblong; surface plane, glabrous, very sj)arsely and obsoletely jmnc- tate, setose; sides '^ul»j)arallel ; apical maririn eveidy i-ound«'d and clearly detine(l fioui a|)e.\. the lattei- -mall and finely setose; external lobe ob-olete. 374 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Appendage very short nianiinilliforin, witli three or four long hairs at tip; fossa on the basal and external surface of apex, small. Superior pude)i(hd rii< iithraiic lono-. attainin<2: the apical sixth of the dorsal plate and longitudinally rugulose. Basal pro7itinences not evident, evenly rounded about base. Ventrolateral surfaces. — Body (juite eveidy convex from side to side, surface lines straight when viewed longitudinally, feebly con- cave laterally before the apex; apex finely setose. Submarginal groove distinct and moderate beneath the very narrowly i)roniinent external margin of the dorsal plate. Internal margins of the valves contiguous in basal third; fissui-e rather long and (juite narrowly fusiform; inferior piulendal membrane not visible. Ildhifat. — California (common about the sand dunes under vege- tation, along the coast of central California; Doctor Horn reports it as extending northward to the head of the Sacramento Valley; as far south as Los >\.ngeles County). Number of specimens studied, 600. Ty|)e in the Eschscholtz collection. Ti/p(-locality. — California near San Francisco. Salient type-characters. — Oblong-ovate. Antenme slender and subclavate. Pronotal disc not noticeably transverse, arcnately de- clivous laterally, with moderately long erect seta> on the ileclivous portions; apical angles obtuse, feebly rounded; sides rather evenly rpunded, rather straight and converging ])osterioi'ly. just the least sinuate before the basal angles. Elytra coarsely punctate, with slight evidence of a serial arrangement when viewed longitudinallj', sides more irregularly and subnniricately punctate. The punctures are setigerous throughout. Diagnostic characters. — Clavicomis is a very distinct species and quickly recognized by its small si/e and setose sides of the pronotal disc. No other species of the subgenus Blapglis has the pro})leura? so distinctly pubescent. Scahrosa is the most closely related species, and differs in its distinctly larger and transverse pronotum. the discal sides of which are not in the least declivous, although set with rer;/ short erect setre. Clavicomis has the elyti'a I'ather coarsely and densely j)unctate, the punctures are impressed, the sculpturing is quite lik(^ that observed in scahrosa. The punctures aie noticeably setigerous throughout. The antemnv are usually feebly clavate. The species named by Bohcman as ///)//ress/(tdJ!s is >imply speci- UKMis which have two thoiacic fovea*. Such accidental variations are common (see p. 27); sometimes only one fovea is present; this variation is frecjuently observed in other species. REVISION OF ELKOnilNI — BLAISDELL. 875 (icuvval ohscrrat'toits. — Tin" iiiciitiini i-> ^iiinll mid inuit- aciito at apex tlmii in other sjM'cios: tlu> siiifacc is iatln'i" str<»ii. p. 272.— I.kCoxtk. IMih-. Acad. .\at. Sci. riiila.. lsr»,S, p. 182.— IIoK.N. Trans. Aiiirr. riiil. S(.c.. XI W isTo, p. :m. Suboblong-ovate. somewhat robust, shinind. third joint about e(pial in leii«_'th to the lu'Xt two coml>ined. fourth and fifth subequal. sixth and >e\ciitli ai»pareutly ju-t the least .shorter and sube<|iial, ei«;hth a little >horler, broader, and suidrianiridar. ninth and tenth transversely oval, eleventh ovat**, apparently broader than long. 376 BULLETIN H3, UNITED STATES NATIONAL MUSEUM. Pfonotnm transverse, widest at the middle, about a half wider than long; disc moderately and evenly convex, not dtclicous laterally, coarsely and ineiifulai'ly punctate, impunctatj? areas usually present, laterally the punctures are denser, becoming gi'anulate and scabrous. (':u-h juincture with an erect and very short seta for a short distance from the side nuirgins; ape.i: truncate or feebly emarginate in cir- cular arc, obsoletely beaded; .svV/r.v very evenly and rather strongly tircuate to basal eighth, there feel)ly constricted and sinuate, thence })arallel or feebly convergent to the basal angles, marginal l)ead fine and usually entire; base feebly rounded, marginal bead not evident, slightly wider than the apex, e(|ual io or slightly greater than the length; apical angles obtuse and scarcely rounded; basal angles obtuse or subrectangidar, not at all ])rominent, Propleura' smooth, very sparsely punctate, punctures subnuiricate. each with a moderately sliort and eivct seta, more or less regulose. Elytra oval. al)()ut a third longer than wide, widest at the middle; base sul)trun{;ate, wider than the contiguous prothoracic base; Jinmnl obtusely rounded or subangulate; .svV/r.s- evenly arcuate, apex rather narrowly to somewhat broadly romided and not in the least produced; disc moderately and e\enly convex on the dorsum, strongly but not very broadly romided laterally, arcuately declivous behind; sni-fucc punctate, punctures coarse, moderately impressed, diffused, Avithout order, sometimes a slight serial arrangement evident when viewed longitudinally. ])unctures simpler on the dorsum, denser and nniricato- granulate with a tendency to coelscence in transverse rugai laterally and on iij)ex; the punctures are minutely setigerous. Epipleurw shining, rather v.ide, gradually narrowing from base to apex, superior margin more or less broadly sinuate beneath the humeri; surface submuricately jMUictate. Sterna densely punctate and somewhat rugulose. Parapleural coarsely and more or less densely punctate. Ahdomen smooth and shining, evenly and sparsely punctate, first segment on and about the process densely sculptured; fifth segment more densely punctate at the periphery; each puncture with a short seta. Legs moderate in length, somewhat stout; anterior femora nnitic; anterior tibial spurs quite similar in the sexes, the anterior slightly longer aiul stouter than the j^osterioi-, both acute: tarsi dissimilar in the sexes. Male. — Somewhat robust. Antenna' scarcely reaching beyond the prothoracic base. Elytra arcuately and feebly obliquely declivous posteriori}'. Abdomen feebly oi)li(iue and moderately convex, first two .segments more or le.ss feebly impressed at middle. Anterior tarsi with the first joint slightly thickened at tip beneath and Ix'aring a REVISION OF F.MinDIINl— HI.AlsnRLL. 377 small -iil)aciit»' tiilt of yellow i^li piiUocciicc ciiNclopcd by a tV'w onli- nary spimiU's, nri-oovc (ji^(ilu•t on the m-coikI joint. Fr//Hi/r. -l\()\n\s{. Aiitciiiia' not (piitc attaining the |)r<»lliorafif base. Klytia latiici' l)roa(lly o\al. aiciialcly and vertically (It'clivous Ix'hind. Al»d(»nii'n lioi-h/ontai and ratlu'r slron«j:ly coiinox. Anterior tarsi with the lirst joint t ians\ersely thieUened at tip beneath, and with a traiisNcrse line of picoous .spiindes upon the same. McdKid'cnu'iifs. — M(tl(.s: I.rf'n-r)..S mm. Ftmuhx: Len«;tl», 12-1:5 mm.; width. (»-('). s mm. (renitul r/i(iru(f^ longer than wide, .surface evenly convex, the sides paraUel and very feebly arcuate. .l/>/<7//r trianS7(/'//c7r parabolic in outline. Each lobe trian<:ular: external bor- der rather eveidy and not .stronirly arcuate; internal border (juite strai( >-"<;iiit'ii( is slightly shortt'i- tliaii (lie procr--: ilic xm-oikI sf^/mciit is about twice as long as the t'oiii'tli. In the male the thii'd segment is ahoiit ecjiial in length to that of the process and ahont a third of its own length shorter than the second. In the female the second segment is about e(|ual in length to the |)i-ocess, and the thii-d is about a fourth of its length shorlei- than the --econd. The protarsi are about three-eighths (male) or a lliinl (fcuiale) of their length shorter than a mesotarsiis. The mesotaisi ai"e about four-elevenths (male) (tr a foiirlli of their length shorter than a metatai'sus. A metatarsus is about a third (male) or ihii-c lil'ih^ of it> h-ngth shorter than its metatibia. ELEODES CORDAl A Eschscholtz. EUfxlrK rnnUitd Escnscnoi.Tz, Zonl. Atlas, III, is;];j, p. 12. — Manm:rhi;im, Hull. Soc. Xnt. ^losoow, X\l, 1843, p. 272.— LECtoNTE, Vi-w. Acad. Nat. Sci. Phila., 1858. p. 182.— Horn. Trans. Amor. Phil. Soc, XI\'. 1s7t), p. 317. Elcodt's tiibcrciilatd Escuscnoi.Tz, Zool. Atlas, III, 1833, ii. 12. — M.v.nnkk- heim, lUill. Soc. Nat. Moscow, XVI, 184.3, p. 274. FJioihs iiitiicdta Mannkkhkim, Hull. Soc. Nat. Moscow. XVI. 1.S4.3. p. 27.3. Khndc.s stricta LkContk, Reports of Explor. and Surveys. 47tli rarallcl. XII, ApiK'udix Xo. 1, 1S."»7, i>. oO. vnr. nttini mm.: width, G-O.s lum. Females: Length, I'J-IT nnu.: width, ().S-!» nun. HKVISION (t|- l.I.I'.onil NI IU„\ISI»KM,. 381 'Ilircc loirii^ iii;i\ Itt' rt'»'(»i^iii/<'(l afcoi'trni'i' lo llic <'liai':itiiriii,ir: Forma sublaevis.- -Siniilnr in t'orin lo the tyjiiciil form. Imt stiioollicr. with lilt x-iilpluriii^^ ^oiiK'what olisolctc. Forma typica. — Str()n«rly and ronirlily sc-iilpdirod ; elytni nif^oscly punctati', the inU'rstitvs iK'twceii the piiiiclmvs ck'vatocl and conNM'x. and more or less conllncnt IransverM'ly. Forma intermedia. — Sculpturing^ more strongly nniricato-tul)ercu- latc, with the intervals between the punctures loss convex and conse- (pK'ntly less ru«^ose. approaching^ phinVioUlcs. Genital characters^ male. — Edeagophore stoutly tiisit'orm, feeldy arched. lliiHalc oblong, about twice as long as wide; surface e\enly convex; sides feebly arcuate, and the apex ([uite deeply and triangularly emarginate. Aphith triangular, rather narrow, usually distinctly narrower at base than the basale at apex; surface strongly convex, without groove; sides nearly straight or feebly arcuate, slightly prominent at l»ase: apex acute; base acutely lobed at middle, laterally feebly .-innate. i^teriiite sul)paral)()lic. Each lobe triangular; external border more or less straight oi- feebly and broadly sinuate in basal two- thirds, thence (|uite evenly arcuate to apical margin, angle nar- rowly rounded: internal margin feelily sinuate; surface very feebly convex, punctate and >etose in apical half, setie moderate in length, not dense, longer toward and on apical margin. Mendjrane not >etose across the bottom of the siiuis, the latter more or less triangular ami apparently not closed l)y the memlirane. Female. — (Jenital segment triangulo-trapezoidal, surface of the valves slightly declivous, setose. Valrula (Plate 4, fig. (»)• — Dorsal plate oblong, feebly narrowed from bsvse to apex. Surface plane or feebly concave, smooth, punc- tures scattered, each with a rather long flying seta; borders quite straight; apical margin oblique, angle obtuse and feebly rounded; internally not distinctly defined from the apex, the latter rather short and membranous, rounded at tij) and clothed with moderately long seta>. Appendar/e mammilliform, ^vith a pencil of (piite long hairs at tip. Fossa rather large at base of the external apical surface. Basal pr<)tii'tii<'iir< s not evident. Superior pinlcmhil memhraiw longitudinally rugulose. and attain- ing the middle of the dorsal ]date. Voifrohitrnil fonfncts. A\o(\\ triangular, surface lines straight when vicwc.l longitudinally, quite evenly convex laterally, sparsely -etose in auical hall", seta- moderate and more or less flying. Sub- 382 BULLETIN (W, UNITED STATES NATIONAL MUSEUM, iiiargiiinl groove "well dcvolopod IxMU'.ith the slightly expanded ex- ternal border of the dorsal i)late and terminating at the fossa beneath the angle. Internal margins of the valves contiguous in basal two- thirds; fissure narrowly fusiform in apical third, and the inferior pudendal membrane is not visible, Ilah'dat. — California, Forma suhlaeris^ about San Francisco Bay; Forma typlca^ central California, along the coast : San Joaquin and Sacramento valleys; Calaveras County; Tulare County, Ralph Hop- 2)intr; Los Angeles County, Doctor Van Dyke; Forma iiitrrmcdia^ nortiiern California, southern Oregon, western slopes of the Sierra Nevada Mountains, Professor "Wickham in his " Coleoptera of Colorado " says that Professor Snow has reported one specimen from Colorado. It is in all probability a variation of pimelioidcs. Number of specimens studied, 500. Type in the Eschscholtz collecticm? Type-locality. — '" California," Salient type-characters. — Ovate, robust, shining. Head and i)ro-. notum coarsely and confluently punctate; thorax subcordate, apex feebly emarginate, angles obtuse; sides more strongly rounded in front, narrowing rather suddenly behind the middle, causing them to appear somewliat angulate; strongly constricted at base; angles rectangular. Elytra oval; humeri nuicli rounded and obtuse; disc arcuately and vertically declivous post.eriorly ; surface densely and rugosely muricato-tuberculate, less strongly so along the suture. Diagnostic characters. — Cordata differs from all other species in the subgenus Blapyli.s, except j>imelioidcs, in having the sides of the ])rothorax more or less subangulate. This character is especially marked in the males. The prothorax is more evenly rounded beliind the middle in most females, but always strongly constricted at base, giving it with the above characters a subcordate appearance. The marginal bead does not reach the l)ase. The coarse sculpturing Avill cause it to be frequently confused with scahro.sa, but the setose propleura' of the latter will readily separate the two, besides the pronotal sculi)turing is quite different in the two species, (laricornis is nnich less strongly sculptured, and the sides of the pronotal disc are distinctly setose along, with the pro- pleurae. In pimelioidex and hnrnnipes the elytra are sculptured with rows of small and rounded tubercles; in the latter species the legs are brown or reddish. In studying a large series of cordata it is very evident that the sculpturing varies toward pimelioidex. so that in the heterotypes it is quite difficult to tell where one species leaves off' and the other begins: REVISION OF ELKODIIXI HLAISDr-.F-L. 883 coi'data ar(|iiii('s a ni^'osciios ol" >tiil|»i iiiiii;i ;iih1 pinu Hd'hIch a (iilicr- culatc t'onii of I'lytral iiiarl mm.; elytra more eh)n long as the width of a mesotibia at middle. The abdomimil proce>s is >ul)(|uadiaie, e(|iial in width (female) or a third (male) of its width broader than the metasternal salient. In the male the post-coxal part of the first segment is equal in length to the third : the second to that of the process and twice as long as the fourth and abotit a fifth longer than the third. In the female the post-coxal part of the first segment is eijual in length to that of the process and also to the seccmd, the latter IxMUg 384 BULLETIN 63, UNITED 8TATES NATIONAL MUSEUM. alxMit twice as long as the fourth: the third is about one-half longer than the fourth. The tarsi are usually moderate in l(Mi£rth and stoutness. Tarsal formula : I'n>. Mcso. Met a. MciatiMa. Male.— 2 2i 3 4i Female.— ll 2i 3 H ELEODES CORDATA var. ROTUNDIPENNIS LeConte. Pronotal sides evenly and broadly rounded (as in paivicollh), basal constriction short and the angles rectangular. Otherwise as in corf] aid. LeConte was very much in doubt as to the propriety of separating this form even as a race. The constancy of form in the prothorax, which, taken in conjunction with the coarse elytral sculpturing, make it appear at first sight as a northern modification of scahrosa; this is not so; the propleurte are without distinct setge, and besides the pronotal punctuation is quite dili'erent, being as in covdata; this is in fact the only superficial character which separates and pre- vents it from being naturally associated with the parcicolJis section. I consider it a good race, and the series before me shows conclusively that it varies more toward typical cordata than pimelloides. TIahit(d. — Oregon (Koebele) : British Columbia (Victoria and North IkMid. Hubbard and Schwarz) ; Washington (H. K. ^lorrison, Easton and Olynijua). Number of si)ecimens studied, 11. Type in the LeConte collection. Type -locality. — '' Oregon."' I have taken this variety at Oregon City, near Portland, Oregon. Strhtd LeConte, according to the author, has the "thorax less sud- denly but very much constricted at base, fully one-half wider than long; elytra more coarsely and less densely punctured." and is to be taken as a synonym of the present race. ELEODES PIMELIOIDES Mannerheim. Elcodrs iiiinrlioiflis >L\N.\Ki{nKiM, Bull. Soc N;il. .Moscow. XVI. 1S43, p. 274; Man. Zool.. XIII, 1843, no. 120. Hj;. — LeCoxtk, Proc. Acad. Xat. Sci. Phila., 1858, p. 182.— Horn. Trans. Anier. Phil. Soc, XIV. 1870, p. 318. Elcodcs viator LkContk. I'roc. Acad. Nat. Sci. Phila., ISuS, p. ISS. Eleodcii xKbUgiita I.,eConte, Iiei>orts of Explor. and Surveys, 47th Parallel, XII, Appendix no. 1, 1857, p. 50. var. bninniinfi C.\sey. Ann. X. Y. Acad. Sci., \', Xov., 1800, p. 402. Moderately robust, ovate, feebly shining to opaque, about twice as long as wide; prothorax more or less strongly constricted at base, densely rugoso-punctale; elytra sculptured with small tubercles, which may be rounded or reclinate and more or less piliferous. REVISION OF ELEODIINI — BLAISDELL. 385 Head (U'liscly piiiictatf. iiutcinuv somewhat slender, iiintli joiiil iri- angiilo-orliicular t.t liaiisveisely o\al. tenth more or less transversely oval. J'ronotnni siilx-ordate to tran>verM'ly >nl)o\al. widest near the mid- dle, a fourth to seareely a half wider than lonir; xiic more or less deplanate on the dorsum, strongly, arciuitely, and vertically declivous jiosteriorly ; surface densely tuberculate, tubercles apparently ar- ranged in rows on the dorsum or irregular throughout; each bears a very short, black seta near apex; when arranged in rows there are very small muricate punctures scattered sparsely and irregularly between, always less distinct along the suture centrally; the tubercles are more or less rounded and shining, the interstices ix'tween more or less opa(iue. Otherwise as in cordata. Male. — First two joints of the protarsi with tuft of yellowish pubescence near tip beneath; that of the second joint is rather small; tuft on the first joint of the mesotarsi quite small. Tufts somewhat long and truncate at tips. Otherwise as in cordata. Femah. — First joint of the anterior tarsi distinctly thickened at tip beneath. Otherwise as in cordata. Measurements. — Males: Length, 12-14. r) mm.; width, li-7 nun. Females: Length, 13-15.2 mm.; width, G.5-8 mm. Genital characters, male. — As in cordata. FeTnale. — Genital segment triangular, surface quite plane and -lightly setose. V(drula (Plate a, fig. 5). — Dorsal plate oblong, feebly or scarcely narrowed apically, slightly explanate externally; apical margin nearly transverse to feebly o!)li(iue, inwardly not defined from the surface of the apex, angle obtuse and more or less feebly rounded. Ventrolateral surfaces. — Sul)marginal groove distinct and well defined beneath the expanded external border of the dorsal plate. Otherwise as in cordata. Habitat. — California (Shasta, Siskiyou, Butte. Lake, and Hum- boldt counties) ; Oregon (The Dalles, Hubbard and Schwarz; Clacka- mas County, Charles Fuchs) ; Utah (Aha, Wasatch in July. Amer- iian Fork Canyon in July, TIul)l)ard and Schwarz; l*ark City") ; Ne- vada (Elko, li. F. Wickham); Washington (Easton, C. V. Riley; .■>i>7so— itiiii. ::,". 386 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. rullniaii, Palouse, A. M. AVaneii; Olympia, E. C. Van Dyke; Walla AValla, Charles Fuchs; Everett, July, Wickham'and Van Dyke); Idaho (Camas Prairie, C. V. Riley; Cccur d'Aleiie, June, H. F. Wick- ham) ; Montana (Helena, August, Hubbard and Schwarz) ; Colo- rado (Central City, Garland, C. V. Riley; Buena Vista, July, Hub- bard and Schwarz; Golden, Glenwood, Horse Fly Peak, Idaho Springs, Aspen, Fort Collins, Leavenworth Valley (1),000-10,000 feet). Roaring Fork, Monument Gulch to Montrose, Little Willow Creek, Canyon of Big Blue, Montrose and adjacent mountains, H. F. Wickham in the *' Coleoptera of Colorado"); Wyoming (Natural Park, July) ; British Columbia (Vancouver Island, collection of Dr. E. C. Van Dyke). Number of specimens studied, DO. Type in the Mannerheim collection. Type-locality. — " California." Salient type- character. — Opaque. Thorax with tlie sides rounded, densely rugoso-punctate. Elytra subquadrate. apex strongh' decli- vous, dorsum deplanate, densely granulate, granules reclinate, rough and piliferous (Mannerheim). Diagnostic characters. — In general form like cordata., from which it differs in having the elytra sculptured with small rounded tuber- cles. The form of the tubercles differs, in some specimens distinctly rounded, in others reclinate and often more or less muricate. In some males there is evidence of rows. The series from Walla Walla, Washington, have the elytra depla- nate and sub(puidrate ; these characters are less marked in the other specimens. In the race hrunnipes the legs are brownish and more distinctly piliferous, at least in those specimens from Nevada. Viator., described by LeConte from Fort Bridger, is a male, with the elytral tubercles large and extending almost to the suture. Colonel Casey also considers that this form does not differ from ordinary males of pimelioides. Suhligata is one of the forms associated witli cordata by LeConte; he obtained specimens from Oregon. Doctor Horn considered it a synonym of the present species, and which is undoubtedly correct. For remarks upon variation in scidpturing see cordata. The legs are variable, usually more slender in the males and stouter in the females. The thorax and linmeri vary as in cordata. ELEODES PIMELIOIDES var. BRUNNIPES Casey. Rather robust, moderately convex, coarsely, densely s('ul])ture(l and dull, black; legs dark brown throughout. Head large, fully two-thirds as wide as tlic piothorax, coarsely, extremely. densely punctate and scabrous. Antctnuv longer than the HKVISKiN OF KLKODHNl lU.AlSKKI.I,. 387 head iiiid piollioiiix. ratlici' -^Iciitlcr. tliiid joint altoiii foiii- times iis loiipf as wide, Prothorax scarci'ly a third widci- than h)n<^: il'isr moderately, evenly convex throufrhout, very coarsely, deeply, and conflnently punctate; aj>cx suhtrnncate; sides sti'oiipeciiuens studied. 8. Type in Colonel Casey's collection. Type-local it !/. — Idaho. Diagnostic from pim due to the failure of normal pigmeiUation. This same character is observed in tcnebrosa (var. nana) and in caseyi. 388 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. The individuals of cordata and pimelioides vary greatly, and th" present race appears to be but a well-marked liel^rotvpe; this rela- tion is quite clearly demonstrated in the large series l)efore me. In examples of brunnipes from Pocatello, Idaho, and which agree quite well with the description, the seta} are longer and more evident throughout. Otherwise as in pimelhideH. ELEODES CASEYI, new species. Ovate, about twice as long as wide, legs re(hlish-l)rown. distinctly pubescent throughout. Pronotum rather coarsely, densely, and more or less rugosely punctate; elytra rather finely and densely granulate, granules submuricate laterally. Head about twice as wide as long, feebly convex, more or less im- pressed laterally and along the frontal suture, very densely and scarcely coarsely punctate. Antenn(v long, very feebly compressed and scarcely at all dilated in outer three or four joints, third joint scarcely as long as the next two combined, fourth to the eighth inclu- sive subequal, the eighth subtriangular, ninth somewhat triangulo- orbicular, tenth orbicular, eleventh ovate. Pronotum transversely oblong-oval, widest at the middle, about a third wider than long; dke moderately convex, declivous about the apical angles, very densely, rather coarsely, and more or less con- fluently rugoso-punctate, granulate laterally; apex truncate in cir- cular arc, marginal l)ead nearly obsolete; sidcx evenly and moderately strongly arcuate, feebly sinuate in basal eighth and not noticeably constricted, marginal bead rather fine and almost entii'e; hasc trun- cate in circular arc. obsoletely beaded, equal in width to the apex and also to the length: ajncal angles obtuse and slightly rounded and not in the least prominent; l)asal angles nearly obtuse and distinct. Propleuric opaque and densely granulate. Elytra oval, a fifth to a third longer than wide, widest at the middle; hase subtruncate, distinctly wider than the contiguous pro- thoracic base; Intmcri obtusely rounded and not in the least promi- nent; sides evenly arcuate, apex rather liroadly rounded and not in the least produced: disc moderately convex on the dorsum, strongly lounded lateralh', arcuately and more or less vertically declivous l)Osteriorly ; surface densely and irregularly granulate, granules more or less shining, simple and smaller along the suture, submuricate lat- erallj' and on apex, where they are larger and more discrete. Epiplevro moderately narrow, not dilated beneath the humeri and gradually narrowing from base to apex, superior margins nearly straight beneath humeri when viewed longitudinally and not visible from above; surface smooth, finely and sparsely i)unctate. REVISION OF KLEODIINI — BLAISDELL. 389 Steniii liiit'ly |)Mn<'tut()-rii;riii<>^«'- Pdnijili iiii with the tirst two joints scarcely thick<'n^rtli. l:') nun.: width. (>.2 nun. (rtnital cJianictt IS. unilc. — Kdeagophorc -omewhat oblonjr-ovate, apicale greatly and suddenly narroweil in apical two-thirds. Basalc elongate oval, moderately convex with the sides moderately arcuate. A/>ir(iJ(' subtriangular in outline, suddenly narrowed at basal and ndddle thirds so that the apical two-thirds appear greatly narrowe«l. convex above, with a linear (jroorf »'xt»Miding from near the tip to the base; sides very prominent in basal third, subangulate, thence -trongly sinuate to the tip. the latter flattened, narrowly rounded, and somewhat reflexed at tip: base lobed at middle and feebly sinuate laterally. Steruite moderately transverse. Each lobe subtriangular. with the external border sinuate in basal half, thence arcuate to apex, the latter rather prominent, obtuse, and rather introrse: internal border more or less oblique and sinuous: surface feebly convex, rather coarsely punctate in apical three-fourths. j)unctur<'s rather dense toward ajK'x. seta' moderately long especially about the apical mar- gin. Membrane not setose across the bottom of the sinus, the latter triangular. Fiiiiiih. — (Jenital -egment ( Plate <"., lig. ;i) rather equilaterally triangular, surface somewhat convex from side to side and feebly >etose. Vah'ula. — I)or>al plate -omewhat oblong-triangular, titles feebly converging apically: surfa<-e glabrous, more or les.s concave, with a few ^cattered and tine j^uncture-. each with a short anfric]ins. It is aberrant, and, for the ]>resent at least, will have to remain as representative of a grouj) in the present sul)genus, analogous in this respect to tibialis. Unfortunately the types are all the examples I have seen, and this fact accounts for the obscurity of the relationships. The grooved apicale of the edeagophore in the male and the pubes- cence in both sexes indicates an apparent ai)i)roach at least toward Triclu'leodes; on the other hand, the dorsal ])late is more like that observed in Blapylis; the pudendal membrane is also unusually long. .\ larger series must be studied before any definite conclusion can be arrived at. The two fii-st joints of the protarsi have pubescent tufts such as are observed in Blapylis, but not in Tiicheleodes. General ohserrations. — The mentum is rather small and subtri- angulo-trapezoidal in outline: the surface is more or less foveate lat- erally and densely punctured. In both types the prosternum is but feebly prominent ventrally with tiie coxa\ slightly convex antero-posteriorly between the c<)xa\ and with a subacute, small but distinct mucro behind, dorsad to which the posterior edge is vertically truncate. RKVISION OK i;i.Kiiiiiit'iit \t'lilr;ill\ . :iicii:ilf|y iiinl vertical I V dcclixoiis. I)iit ft'«'l>ly (-(mcavf. The luetasteniiiiii laterally hi'tweeii the coxa- is as Ion;; as the width of a mesotihia at mitldle. The al)d(»Miiiial iiitei'coxal ])r()c«'ss is <|iiadi"at(' (male) or transvei's<' (female) and a fourth (male) to a third (female) of its own width broader than the inetasternal salient. The ahdominal process is e(|iial in len^rth to the .-econd segment : the post-coxal part of the first is eipial to the length of the third. In the male the third i- hut slightly h)n^er than the four'tii: in the female the third is ahoiit onedialf lon^'ei- than the fourth. 'J'iie profemora are mo(h'rat«dy clavate; the mesofemora feehly widened, with the su|)erior and inferior surface lines sli*;htly arcuate; the metafcmora are >ul)e(|ual in width throughout, with the suj)erior and inferioi' surface lines j)arall(d. The tihial ^n'ooves reach nearly to the femoral base on all (d' the femora, but mon' or le>s evanescent internally on the meso- and metafemora; their margins are feebly develojx'd and subasperate. The tibia' are without tarsal ^i-oove- : the articulai' cavities are closed. The j)rotibia' are slightly carinate externally in basal half. The tarsi are comparatively moderate in length and stoutness. Tarsal formula : I 'Id. Moso. Mota. Mctatibla. Male.— 1 A 2 2* 3 A Female.— 1 A 2< 2? 4 Subgenus METABLAPYLIS. new. The mentum has the miildle lobe very small and the lateral lolies fully exposed (Plate (>. fig. IC)). These character> appear uni<|ue in the genus hl('() reduced in size, but never so completely and persistently. The anterior tarsi are similar in tin* sexes. sim|)le ben«'ath. the grooves entire. Tln' anterior femora are more or less sinnate beneath in apical fifth, never dentate, although in nitfrhui the rudiments are |)resent. The anterior tibia' are more or less constricted at base, and recalls similar characters in lilnpiiUs and phiniiKiiiiis { Pi. progenia) : this api)ears to be an atavistic character, and bears an inverse I'ehition to the femoral teeth: it is at times feebly indicated in nearly all of the snbg»'iiei-a. Sr/ii'utrzil forms an excepti<»n. and in the strict sense does not Ixdong here: the first joint of the protarsi is distinctly and unmis- takably thickened at ti|) beneath, and can oidy be considered as a tem- porary constituent :?. rxiTKO statks national Mrsi':i\M. It is also at variance in Blapylh^ and rather than create another sub- genus it is best to do as I have done and retain it as a section in the present aggregate. Tih'talh, planipennis. and .scJurarsu are all disturbing elements in the subgenera in which they are placed, and their true position in all probability will only be known when the Mexican sjx'cies shall have been carefully studied. The genital characters give the essential definition to the present subgenus : Male. — Apicale of the edeagophore more or less equilaterally tri- angular, more or less depressed, apex not in the least attenuate, the dorsal surface with a broad central membrano-chitinous area. In schwarzii a well-developed groove is present and the apex attenuate. /'V7/i«Zt\— Genital segment more or less triangular; apex chitinous, flattened, and moderately produced, but narrow and evenly rounded at tip, convex above and concave beneath. Dorsal plates of the valves oblong with the external edge converging apically. angle not evident. Ai)pendage small and mammilliform, penicillate. Superior jjudendal membrane rather broadly exposed and reaching to the ai)ical fourth of the dorsal plate, (xenital fissure nearly closed. In sfhicarzii the female characters are as discordant here as else- where. I>lst)'}hiition. — Of the three species and two races constituting the present subgeneric aggregate, niyvina has the most extensive distribu- tion, occurring in Oregon, Washington, Northern California, Nevada, Arizona. Colorado, New ]Mexico, Nebraska. Kansas, Idaho, and the Dakotas. It is to be inferred that it occurs in the intervening States not mentioned above, but representatives are not at hand. hiss'nii'tJts ajjpears to be abundant in Arizona. It also occurs in New Mexi(!o. Neradensis, in Nevada, southward into Arizona and the Colorado Desert of eastern southern California. Peiiomja is only known to me from Wyoming. Schwarzii occurs in Washington. It will be observed that Meta- hhijii/l'iK oidy occurs in California within its northern and eastern confines. Closely related species are undoubtedly plentiful to the southward in Mexico. Genc(ilo(jii. — Very little can be expressed in regard to the origin of the species enumerated above. Too little is known of f<'f tlie dorsjil surface fwldy f<(iicave aiul meiiibruno- cbitiuoiis: M|H'.\ nut in llic least att«'iiiiat»' HKVISION OF ELKonilNI lU.AlSDKI.L, 393 A syti()|)(i( al taltulatioii of the ^a-uital diaracters will prove iii- 4riK'tive : niffrinn. van. prrlouyn. (lixsiiiiiliM. var. nrraihiiMix. Aplcale triaiiRular, not ilepresstHl, with a definite median lonRitndiiial >;rex aiii>arently ehltlnous, short, triangular, S4juiewhat ih'tlex»*d : su|)erlor pudendal uieinbrane reaching to the apical third of the dorsal plate, and not ru>;ulos«' in the examples studitnl xchicurzii. ANAI.VIH Al KKV TO SI'KCIKS OK SIHCKM S M I I AlflA I'V I IS. First joiiii of the anterior taisi not thickene«l at tip beneath, groove distinct and entire. Sculi»turiiig submuricate on the elytra! sides and ain'X. Surface luster subopaque nigrina. Surface very bright and shining; — males frtxpiently very elongate. \ar. Ill ilitiH/ii. Sculpturing smooth, not at all subasperate. Surface luster more or less shining; form fusiform-ovate tti ovate: ventral surface not distinctly pubescent JixfiiuUit. Surface subopaque and alutaceous: both sexes typically of the same form, elcuigately cylindrical; ventral surface with rather long, sparse, flying hairs var. ncvadrnsix. First joint of tlie protarsi iu l>oth sexes, tliickeneti at tip beneath, groove in- terruptwl ntliinirzii. ELEODES NIGRINA LeConte. A7co(/r.s niurlnn, LkI'ontk. Troc. Acad. Nat. Sci. rhila., isr.s, p. Isc.-Hokn. Trans. Amer. Phil. Soc., XIV, 1.S70. p. 'M:\. Eloii loiio^er tliaii wide, subopaque; elytra niiuicato-<:iaiuilate later- ally and on the apex. Ihad less than twice as wide as lonjr. feebly convex, more or less impressed laterally and very vaguely along the froiital suture, the latter not evident; surface scarcely coarsely, irregfidarly, and densely punctate, pinictures denser laterally and on the epistoma. where they iH'ar minute seta'. Antenna moderate in length and ecpial in the sexes, somewhat stout, very feebly compressed, and more or less slightly dilated in outer four joints; the third ee<]ual: eighth al)out as wide as long and sui)triangtilar : ninth and tenth more or less tran.sversely oval; eleventh ovate, truncate at tip. 394 BULLETIN 03, I'NITED STATES XATTOXAL MUSEUM. Pronotmn subquadrate, widest at or just in front of the middle, an eighth to a fifth wider than long, less than twice aif wide as the head; disc moderately to quite strongly convex, arcuately rounded laterally and at the apical angles; surface almost finely, densely, and irregu- larly punctate, becoming very densely granulate laterally; apex truncate to feebly emarginate in circular arc and more or less obso- letely margined ; sides evenly, broadly, but not strongly rounded, behind the middle slightly converging and straight or feebly sub- sinuate as viewed from above, but quite evenly rounded from apex to base as viewed from the side, marginal bead fine, entire, feebly limiting the disc from the propleura^, the former not in the least dilated laterally; base subtruncate to feebly arcuate, occasionally broadly and feebly sinuate at middle, rather finely beaded, and a little wider than the apex; apical angles obtuse, not rounded nor promi- nent anteriorly: basal angles ol)tuse to subrectangular, never joromi- nent. PropleurcB distinctly convex, moderately finely, more or less evenly and not very densely, granulately punctate, frequently rugulose. Elytra elongate oval, usual!}' widest at the middle, sometimes be- hind the same, scarcely twice as long as wide; Zxr/w subtruncate, scarcely to slightly wider than the contiguous base of the prothorax ; humen rounded, but not broadly so; sides more or less evenly arcuate, not strongly so, apex hardly produced and not broadly rounded ; disc moderately convex. fre(}uently somewhat depressed on the dorsum, rather ol)liquely attenuate in aj)ical fourth and more or less arcuately declivous behind ; surface punctate, punctures somewhat fine, usually arranged without order, frequently more or less striate, almost simple about the suture on the dorsum, muricato-granulate laterally and on apex; when the punctures are serially arranged, those of the strite are closely placed and frequently almost larger than the interstitial punctures, which are more distantly spaced and quite regular, almost serial; laterally the punctures are always confused and minutely setigerous. Epipleura' moderate in width, very feebly widened beneath the humeri, thence gradually narrowing to apex; superior margin very broadly and slightly sinuate in basal fourth, as viewed longitudinally; surface sparsely, irregularly, and finely punctate, at times obso- letely so. Sterna quite densely punctate and rugose, sometimes strongly so. Parapleural irreguhirly and at times densely punctate. Abdomen horizontal, rather finely and almost densely punctate, each puncture minutely setigerous; surface very finely or at times coarsely rugose, fourth and fiftli segments generally less densely punctate and frequently more or less rufous. REVISION OF KT-KODIINl — RLAISDELL. .^95 7/..5-(i,'2 mm. Femalen: Length, 20-22.5 mm.; width, 8-8.5 mm. Genital ehaeacters, male. — Edeagophore somewhat oblong-fusiform. Bas/ih oblong, sides more or less arcuate, scarcely arched and quite evenly convex, with a linear median groove in apical half. Ajt'Kiih' (Plate 1. fig. 3) triangidar, stirface more or less convex, generally depressed and more or less l)roadly membrano-chitinous at middle: sides feebly arcuate and more or less feebly sinuate near apex, the latter rather narrowly rounded and not recurved; base more or less acutely lobed at middle and sinuate laterally. Stertiite transverse and semicircular in outline. Each lobe triangu- lar, with the external border quite evenly arcMiate to the ajiex. the latter narrowly rounded; internal border slightly sinuous; surface feebly convex, rather densely punctate in apical half, seta^ moderately long and dense, most so at aj^ex: membrane not setose across the bottom of the sinus, the latter more or less triangular. Female. — Genital segment triangular to oblong-tiiaiigular in out- line, feel)ly setose, apex chitinous. Vah'ida (IMate 1. fig. 1). — Dorsal plate oblong, sides slightly con- verging apically, glabrous; surface more or less concave, feebly. spars(dy, and irregularly punctate, punctures with fine reclinate st'ta', sides not reflexed ; margins siibparalhd. the external iieaidy straight, or occasionally feebly arcuate to sinuous, and the iiitt-i'iial more or less feebly sinuous or straight : a|)i(al margin more or li'ss obliciiiely truncate, occasionally not well defined from the apical membrane internally; angle rounded but evident, occasionally with two or three seta\ Apex well developed and moderately jirodiicecl. flattened, more or less conv»'x above, broadly and eveidy rounded at tip. <-hitinous, with oi' without a few rather . Afpendage moderate in size, mammilliform and penicillate, setae quite long, tAvo or three extending beyond apex. Baml jyfominences slightly evident. Si/pej'io?' pudendal menibrane longitudinally rugulose, rather broadly exposed and attaining the apical fouilh of the dorsal plate. Ventrolateral surfaces (Plate l,fig. 2) not swollen, surface flattened centrallv to base and convex laterally. Apex concave beneath. Sub- marginal groove shallow and passing into a broad lateral and apical concavity; surface not noticeably setose; internal margins setulose at apex. Internal margins of the valves contiguous in basal half, the genital fissure in apical half, very narrow and nearly closed. IlahJtaf. — Oregon; Washington (Pullman, May, C. V. Piper); Xorthern California (Modoc County) : Nevada (Verdi, April, abim- dant) ; Arizona (AVilliams, June, Barber and Schwarz; Humphrey's Peak at the base, F. H. Snow) ; Colorado (mountains southwest of Montrose; Durango; South Park; San Luis Valley: Ouray: Veta Pass, 9.200 feet; Buena Vista; Colorado Springs; Florissant: Gar- land; Idaho Springs; Georgetown; near Long's Peak; Fort Collins, Wickham's List. South Park, elevation 8-10.000 feet. August. Golden, Dyar and Caudell; Chenney Gulch); New Mexico (Santa Fe, LeConte) ; Nebraska (Black Hills, LeConte: Sioux County, Coll. Univ. Nebraska) ; Idaho; Western Kansas; Dakota. Number of specimens studied, 350. Type in the LeConte collection. Type-locality. — Black Hills, Nebraska. Salient type-characters. — Elongate, subopaque. Thorax subquad- rate, narrowed behind, sides broadly rounded, apex almost truncate, moderately convex, sharply and rather densely punctate. Elytra declivous behind and obliquely narrowed, irregularly punctate, punc- tures especially at the sides muricate and very briefly setiferous. Legs muricato-punctate; anterior femora obtusely sinuate (LeConte). Duu/nostie characters. — Nigrina by its subopaque integinnents and more or less muricate sculpturing differs from all the other species of the subgenus Metablapylis. In the race pevloncja the body surface is very bright and shining. In d'lsxlia'ilix the form is more ovate, usually less elongate and more depressed: the elytra are smoothly sculptured and the stri.o more evident and distant. >ichwarzii more robust and the form is more like some Asul(t\ as convexa^ the pronotum is less convex, more transverse, more dilated at the sides, so that the margin is distinct and prominent. Nevadensis is nnich more slender in every way, more or less aluta- ceous and opaque. lUAisioN (»i- i;m;o|)Ii.\i iu.aisdkll. .'-597 Nigrhui is (jiiito vaiiiil)!*- in l'i»riu. Tlicic is befoiv me a foinale that has the I'oiiii of Iniim nills iiiid was for ycais as>ociat<'(| with that species, until 1 examined the p'liilal see more or less indicated and a^perately sculptured; the protil)ia* are more or less distinctly cari- nate externally in basal two-thirds; the articular cavities are closed. The tarsi are variable in length and stoutness. The relative lengths of the joints in each tarsus are apparently as in Mt'lanc'leodcuj where the test was fully applied. 398 BULLETIN G3, UNITED STATES NATIONAL MUSEUM. Tarsal formula : Pro. Meso. Mela. Metatibla. Male.— 29 3i 4 7 Female.— 2J 3i 4 OJ ELEODES NIGRINA var. PERLONGA, new. Elongate, verv bright and shining, sculpturing as in nignna, but somewhat finer. Elytra obliquely narrowing in apical fourth, usu- ally distinctly pointed behind with apex narrowly rounded and sub- acute; disc somewhat flattened on the dorsum, arcuately and ob- liquely declivous behind. Otherwise as in nigrina. Measurements. — Males: Length, IS.-V^'J mm.: width, (i..")-! nun. Ilahitat. — Wyoming (June). Diagnostic characters. — The present race differs mainly from nigrina in its very black and highly polished surface, as well as its verj' elongate form. Males are only known to me and I have seen eight examples all together. ELEODES DISSIMILIS, new species. Elongate, fusiform-ovate, or oblong-ovate to ovate, very black, mod- erately depressed, smooth, elytral stria' rather distant. Head twice as wide as long, frons more or less plane, lateral im- pressions very feeble, frontal suture usually quite obsolete, distinctly but not very coarsely punctate, punctures dense laterally and on the epistoma. Antennct moderately long, somewhat stout, very feebly compressed, scarcely or very gradually widened in outer four joints, third joint about as long as the next two taken together, fourth evidently just tlie least longer than the fifth, the latter to the seventh inclusive sulxMpial, eighth slightly shorter and subtriangular. ninth and tenth scarcely transversely oval, eleventh short-ovate, truncate at tip. Pronofum subquadrate. widest at or just a little in front of the middle, about a sixth to a fifth wider than long, slightly depressed ; (li.sc moderately and evenly convex, more or less arcuately declivous laterally, finely but distinctly, evenly and rather sparsely punctulate, punctules freciuently somewhat obsolete in the central area. Apox slightly and evenly emarginate to subtrmicate, more or less obsoletely margined ; sides moderately and quite evenly arcuate, apparently more or less convergent behind the middle, where at times they may be somewhat .straight or rarely feebly subsinuate, marginal bead fine; base feebly rounded and finely margined, scarcely wider than the apex; apical angles obtuse, feebly rounded or distinct, scarcely promi- nent anteriorly: basal angles obtuse and not in the least prominent. REVISION Ol" KLHODIIM lU.AISDKLI,. 399 l*i(>/)l(iiiii tlistiiicllv coiiNCX. siiiootli. liin'ly iiiul s|t;ir~-fl\ or oloo- k'tt'ly pimcdilatc, more or less rii^uloK'. Khitrn oval, ahoiit (wicc as loiicr as widr, soiiicwlial (Icpri-.s^-d, widest at or behind the middle; hune siihtnincate and distinctly adapted to the prothoiacic hasc which it scarcely exceeternum slightly pubescent: metasternum less so. hairs short. Favaplturd not strongly punctate. Ahdomou horizontal, smooth, sparsely and latlier indistiiKtlx punc- ttdate. finely and inconspicuously piliferous, and moi-c or l<'-> feebly rugulose. Legs moderate, in length, and in stoutness to somewhat slender. Anterior f(Mnora more or less simiate beneath at aju'X. umtic: s|)urs of the protibia* similar in the sexes, usually rather slender and acute, the anterior slightly longer than the posterior: ]irotarsi similar in the sexes, the first joint not thickened beneath, gi'oove distinct and <'ntire. Male. — Fusiform-ovate to oblong-ovate, somewhat narrow. An- tenna* i-eaching beyond the jirothoracic base. Elytra rather gradu- ally and arcuately to almost obli(|uely and rather quickly declivous posteriorly. Abdomen very nuKlerately convex, sometimes feebly imjjressed on first two segments. Anterior femora occasionally with the anterior margin of the tibial groove, feebly and broadly sub- dentate within the sinuation. Fcinnh . — Ovate, rather broad, antenna' attaining the prothoiacic base. Elytra rather bioailly oval, arcuately but not vertically de- clivous posteriorly. Abdomen not very strongly convex. MeoKtn'ctnrnts. — .l/f/Zcv; I>«'ngth. 14.r>-li) nun.: width. ."■»..■»-("). 7 nun. Frmalcft : I.^ngth, 14.5-10 nun.: width. <>-T.."> nun. 400 BULLETIN 63^ VNITED STATES NATIONAL MUSEUM. Genital characters^ male. — Edeag:ophore elongate, oblong-sub- fusiform, scarcely arched. • Basale oblong, moderately convex with the sides feebly arcuate. Apicale subeqiiilaterally triangular, moderately depressed, broadly impressed and membranous at middle: sides feebly arcuate and con- verging to apex, the latter not in the least attenuate and narrowly rounded ; base subobtuselv lobed at middle and feebly sinuate later- ally. Sternite rather short and slightly transverse, somewhat parabolic in outline. Each lobe short and triangular: external border straight or feebly sinuate in basal two-thirds, thence to apex feel)ly arcuate to subtruncate, apex obtuse ; internal border oblique and feebly sinuate : surface very feebly convex, coarsely and sparsely punctate in apical two-thirds, at apex rather densely so, sparsely setose, seta^ longer and denser on apex. Membrane not setose across the bottom of the sinus, the latter triangidar and rather broad. Female. — Genital segment triangular, dorsal surface quite plane and feebly setose. Yalnila (Plate 5, fig. 12). — Dorsal plate elongate oblong; surface plane or feebly concave, smooth and shining, with very few short setiP scattered over the apical half; external border nearly straight, slightly converging apically and more or less explanate; apical mar- gin more or less defined from the apex and rounded with the angle; internal border quite straight or feebly sinuous. Apex membrano- chitinous, feebly everted, slightly prolonged, tip rounded, convex above and feebly concave beneath, with two or three long setcT near tip, valvular membrane Avithin finely setose; fossa at base of the external surface. Basal prominences not evident. Appendage short mammilliform, smootli. with a tuft of some three or four quite long setw. Superior pudendal memhrane longitudinally rugulose. attaining the apical sixth of the dorsal plate. Ventrolateral surfaces. — Body triangular, ventral surface lines straight when viewed longitudinally, laterally very^ feebly convex in basal moiety, thence very slightly concave to apex: surface smooth and impunctate. Surface of apex finely setose, submarginal groove broad and shallow beneath the explanate external border of the dorsal ]date. Internal margins of the valves contiguous in basal four-fifths, fissure in apical fifth and closed. Valves anteriorly produced in median line beneath. II(d)Jfaf.—\v\zonn (Fort Grant. July, Santa Kita ;Mountains, Chiiicahua Mountains, Oracle. Hubbard and Schwarz: Williams, Barbel- and Schwarz. all in the U. S. National Museum collection. REVISION OF ELEODIINI — BLAISDELL. 401 Oak C'lHvk, ScpU'iiilM'i-. K. (i. Smith, (olluclor. \\':irr >im|>le; llmiax siil> lihininturinL' and nioi'e (l<'|»ie-— ed form: the females are less elongate. iSc/iWtrongly romuled and less convergent l)ehind. Xcri/t/rnsi's is opaque; both sexes are ty|)ically subcylindrical ; U'gs slender and the ventral surface distinctly but sparsely i)ulK>scent; the thorax is smaller. l)isst)iiiHs has heretofore been referrecl to some ^ix species. There is nothing like it in the I^'Conte collection. A single male Ijefore nie answers quite exactly to Colonel Casey's description of nifldi/s and it is possible that my name may have to be suppressed and (^isey's substituted. He refer> nit'nhis to near lontiicolUx. If (I!ss!//t//f.s i> iiituhis no one who has compared my example'^ in the East has recognized this relationshij). but it has invariably i)een associated with nigrina. The types are in the U. S. National Museum collection, and anyone caii make com|)ariM)ns. (iciaiuil ohscri'dtioHft. — The middle IoIh' of the mentum i- very .-mall and triangular, the lateral lobes entirely exposed, more >o than K)780— Bull. (5.'l— Ul» 26 402 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. ill nigrina. This character has not been observed elsewhere in the genus Eleodes. The surface of the middle lobe is nnelj^ scabrous; the lateral lobes bear a few rather long setae, while the middle lobe is not noticeably setigerous. The presternum is not strongly protuberant ventrally with the coxa.', and distinctly setigerous. Between the coxa' it is more or less convex antero-j)()steriorly. sometimes horizontal. Generally with a small iiiucro behind, sometimes nearly vertically truncate with a niucroiiate angle. The mesostenium is arcuately declivous and more or less concave, with numerous small setae. The metasternum laterally betAvoon the coxa' is as long as the width of a mesotibia at middle. The abdominal process is quadrate (male) or subquadrate (female) and about a fourth (male) of its width broader than the metasternal salient or subequal to it (female). The post-coxal part of the first segment is equal in length to the second; the latter is twice as long as the fourth. In the male the third is about three-fourths longer than the fourth, in the female it is about two-thirds longer than the same segment. The profemora ar(^ clavate. the mesofemora slightly swollen, and the metafemora somewhat narrowing toward base; the grooves are shallow and flat, the margins feebly subcariniform and sometimes feebly asperulate. The anterior margin of the profemoral grooves is not so distinctly sublaniiuate internal to the apical sinuation as in nigrina. On the meso- and metafemora the grooves vary as to their degree of convergence before evanescence. The tibiaB are without tarsal grooves ; the external faces of the meso- and metatibise are somewhat flattened but not glabrous, and the articular cavities are closed. The })rotibiie may or may not be carinate externally. The setae and spinules on the femora and tibiae are usually black- ish, but freciueiitly somewhat ferruginous on the tibia': on the tarsi they are nearly always ferruginous. The tarsi are somewhat slender, but frequently they ajjpear mod- erately stout. Tarsal formula : Pro. Moso. Mot a. Mctatibia. Male.— 2^ :\h 'ij r >A iMMiiiile.— 2 8 3 J 5 ELEODES DISSIMILIS van NEVADENSIS new. Cylindrico-fusiforni to ovate, elongate, moderately depressed, opaque, more or less alutaceous and slender: thorax obsoletely piinc- tulate; elytra striato-punctate; anteniue, tibiae, and tarsi with the REVISION OF KM.oDIINI — BLAISDELL. 403 >>('t{P iiiiil .s|)iniilc> more or li'ss stroiijrly rcirii^nnoii- : vcntiiil --urfncc tlistinctlv pubescent. II( wide as loii^. Irons l"rc<|ii('iitly planatc. of more or less convex. hroatUy and sliallowly im|)resse(l laterally. frontal suture not evident, rather finely and not densely punctate, punctures denser at the jierii)hery, each with a short reclinin^r seta. Autetnni lon<2: i»i>rately slender, outer four joints very feebly compressed and scarcely dilated, third joint ai)out ecpuil to the ne.xt (wo taken to^ wide, eijrhth shortei- and sul)trian«j:ular. ninth and tenth suborbicular to feebly transversely oval, eleventh ovate. I^ronotum subquadrate. widest at or slia.sr trtmcato-emarginate and adapted more or less to the prothoracic base, which it scarcely exceeds in width: Immeri obtuse, angle distinct although small and not prominent : tiidrfi evenly arcinite. apex not broadly I'oiinded : disr slightly depressed and moderately convex on the dorsum, strongly and not very broadly rounded laterally, arcti- ately declivous behind : v/r/V/rr striatcvpunctate. serial punctures small, closely placed in moderately distant rows. intei"stitial piinctules more or less minute in a slightly irregular series, serial arrangement mon* or less evident laterally and on a)iex. Epxphiiro moderati'ly wide, not dilated beneath the humeri and gradually narrowing to apex, superior margins feebly visible at humeri when viewed from al)ove: surface smooth, more or less con- cav«' and obsoletely punetulate. Sfenui more or less finely, densely, irregulaily punctate and rugii- lose, sparsely clotlu'd with erect and rathei- long ferruginous hairs. Paraj/Uura more or less obsoletely and irregidarly punctate. 404 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Abdomen finely punctate and niguloso, each iiiyictmv with a rather long, erect ferruginous hair; fourth anr suddenly arcuately declivous behind, slightly narrowed just before the apex (ovate form). Abdomen evenly and rather strongly convex. MeaHiirementx. — Males: Length. Ki.o-lS nun.: width 4-0 mm. Fe- males: Length, 17-17.5 mm.; width 7-().r) nun. Genital characters, male. — Edeagophore rather small and fusiform. Basale evenly convex. Apieale quite equilaterally trianguhir; surface depressed and feebly membranous at middle; sides more or less feebly arcuate and slightly sinuate l)efore the apex, the latter not recurved, blunt and evenly rounded: base broadly lobed at middle and very feebly sinuate laterally. Steruife subparabolic in outline. Each lobe with the external border evenly arcuate to apex, the latter narrowly rounded ; internal border more or less sinuate; surface rather densely and strongly pnuctate. setose, setse moderate in length. Membrane not setose at bottom of the sinus. Female. — Genital segment triangular, surface of the valves uun'e or less inwardly declivous, feebly setose. Valri/la (Plate a, fig. 11). — Dorsal i)late elongately triangular, nar- rowing from base to apex, smooth and shining, (piite impiinctate. more or less feebly concave: external border not explanate, quite straight ; apical margin narrow, not wider than the base of apex, angle not evident, rounded internally with the internal margin, the latter (juite straight: apex quite narrow aiul slightly produced, convex above, slightly concave beneath, chitino-membranous, tip roundiMl and but slightly narrowed, smooth and shining, with few REVISION or KI.KODIINI— MI.AISDKI.I,. 405 fiiu' s('t;i' oil lilt' iiilciiiiil >iirr:i((': tossa -inall. NtcatiMl al l>a-f of llic external siirfacf. ApjKii(i[un{ iiiaiuiiiiHirtiiMi. smoolli, witli a pencil of some four short seta- at tip. BamI proiniiniKetf not in the least evident. Superior pinhndnl membntin' rather lonjr. f|uite attaining the apical niar«i:in of the dorsal plate, longitudinally rujjulose. Vi'/ttro/dfrnil surfaces. — Body surface lines nearly straijrht when viewed lonjjitudinally, slijjfhtly swollen in basal half, smooth, feehly setose apically; submar^inal jjroove nearly obsolete, external margin of the dorsal plate beinjjf scarcely at all prominent laterally. Internal marjjins of the valves conti«ruous in basal two-thirds; fissure in apical third and closed. Iliibitdt.—Xv'v/.ouw (Tucson and Pinal mountains. Wickiiam : Pres- cott) ; Nevada (Pioche) ; California (]*alm Sjirintrs. March). Number of specimens studied, I'i. Type male in my collection : female (Cat. No. l-J-JHS) U. S. National Museum collection. Type-localities. — Male. Tucson. Arizona ; female. Palm Springs, California. Siilliiit ti/pc-ehuracters. — Both sexes elon<2^ate and subcylindrical. Antenna' long;. Head finely punctulate. Thorax small, a little wider than long; disc more or less obsoletely punctulate, rather strongly convex; apex feebly emarginate; sides moderately arcuate, narrowing posteriorly, marginal bead fine; base very feebly rounded; apical angles obtuse, distinct, not rounded nor prominent ; basal angles obtuse, not rounded. Elytra at base more or less adapted to the |)ro- thoracic base, which it scarcely exceeds in width; humeri obtuse, angle distinct and small; disc more or less moderately convex, striato- l)unctate, strial punctures closely placed and rather small, stria' mod- erately distant, interstitial punctules fine, slightly irregular and rather distantly spaced in a series, scarcely different lat«'rally. Sterna and abdomen with distinct and sparse hairs: legs slender. Hairs and sj^inules ferruginous. I>ilightly convex on the dorsum, lather strongly and somewhat broadly rounded laterally, arcuately declivous behind; surface somewhat densely and scarcely subasperately punctate, the punctures about equal in size and in evident, rather closely placed series, laterally submuricate and irregular. Epipleunv moderate in width, not dilated beneath the humeri, grad- ually narrowing from base to apex, superior margin not visii)le from above; surface smooth, dull, and obsoletely punctate. Ster/Ki and ptt'r Miitl sciil|)turiM<^ i> nearly as in /ti(//-/iui, although in tlio latter it is rather more coarse. In iiH/rl/ui the pronotal ly and broadly foveate laterally, setose, but inconspicuously so. The i)rosternum is not prominent ventrally with the coxa'. In the single male before me it is aicuately rounded antero-posteriorly and not in the lea.st mucronate: in one female, rounded between the co.xa' and distinctly mucronate behind, and in another example very slightly mucronate. The mesosternum is feebly ai-cuate. but ol)li(|uely declivous and very slightly and broadly concave. The metasternum laterally between the coxa' is as long as the width of a mesotibia at the middle. The abdominal process is sulxpiadrate and about a fifth (male) to a fourth (female) of its width bi'oader than the metasternal salient. The process is eipial in length to the post-coxal ])art of the first segment, also to the third ; the second is about two-thirds longer than the fourth. These proportions api)ear (juite similar in the two sexes. The femora are quite like those of nif/rina, the grooves on the meso- and metafemora are more evanescent and the margins weaker. The tibia* are cpiite like those of n'u/i'ina; the j)rotibia' in the male are (juite strongly constricted at base: this is also observed in />«/■- loiK/a. The tarsi are (juite stout and soniewhat long. Tarsal formula : Pro. M.-SO. Mffa. M.latiltia. Ma le.— 2] Wh 'M ^} I'Vmale.— 'Ji. ;'. 4 f, Subgenus STENELEODES, new. As in other subgenera of th«> genus Klcoilcs. the present one is foundes distinctive habitus. 410 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. The salient siibgeneric qualities are as follows: Anterior femora inutic, integuments smooth, the form elongate and more or less attenuate. Other characters of less diagnostic value may be mentioned: The luimeri are feebly developed, except in innocens, where they are distinct: the first joint of the anterior tarsi in the male is slightly thickened at tip beneath and bears a small transverse tuft of yellowish or brownish modified spinules, which interrupts the groove. The elytra are never caudate: the anterior tibial spurs are similar in the sexes and usually subecjual, although subject to a slight varia- tion in their relative lengths, the anterior often appear slightly longer than the posterior and both may be longer, slightly larger in the female, but the males often exhibit this variation among themselves. The internal spurs of the meso- and metatibiae are always notice- ably longer than the external. The abdomen is horizontal in the males of gigantea and gentilis. slightly oblique in ef^triata and most so in innocens; always hori- zontal in the females. Suhgencnc genital characters^ male. — Apical lobe of the edea- gophore triangular, dorsal surface broadly depressed and concave, central area more or less membranous; apex blunt and not pro- duced; base broadly rounded at the middle third. Female. — Genital segment subparabolic and not setose, external lobe of the apex obsolete, the internal chitinous and more or less strongly developed, produced, convex above and excurved. Appendage minute and quite rudimentary. Dorsal plate of the valves elongate oval to subfalcate. fSuperi or pudendal membrane broadly exposed by the distant dorsal plates. In the form of the apices of the genital segment and the minute appendages the present subgenus appears closely related to Disco- genia. D'/strihvt'ton. — Gigantea occurs on the peninsula of Lower Cali- fornia and in California as far north as the vicinity of San Fran- cisco Bay in the north central i)art of the State. Gentilis undoubtedly occurs in southern and central California: no definite locality has been recorded except San Diego. Specimens collected at San Diego by Colonel Casey and others received from Lower California by Doctor Horn, and therefore recorded from definite localities, were not gentilix at all, but either oniissa or its race pygmo'a. All specimens of gentilis that I have seen had simply a '* Cal." lalx^l. and these were carefully compared with a LeContian type by Mr. Blanchard and myself and the identification is correct. The species probably occurs in Lower California. Estriata. is only known from the San Franciscan peninsula and adjoining region. REVISION ()[•' ELKODIINI — BLAISDELL, 411 EatrtaUi \ V \ I.ongk-oUis LoiK/iioHis has ii wide raii^^- of ili-t rilnit i(»ii. In Mexico it (mtiii'-- in the States of C'oaliiiilii. Cliilmaliiia. and Soii«»ra. In the I'nitrd Slates it is al>iiii(laiit in Texas. Arizona. New- Mexico, Kansas, and Colorado. It proltahly extends into Neliraska. ^^'\•onlin^^ and I'tali. A specimen in the National Miisenni collec- tion heais a lahel " ( )r«'«i;on." I helieve this is erroneons; at anv latt' it remains to he verified. Loiuficoll'is occnrs in Coloiado at an elevation of 7.000 feet (\\'ickham). Iniuni ns thus far is onl\' Unown to oecm* in Lower Califoinia. I ha\e no Unowled";)' of it occnifin^f on the maiidand in M(>xico. Genealofjii. — It wonld appear aft«'i' a careful sni'vev of the lar;/.' series hefore me represent at i\'e of the snl): Klytra estrlnte: surf.noe luster sinning iin«l l)rij:lit. I'roniituin f(vl»ly comv.x aiiten>-|N)st»'ri(>rl.v. nornialiy stmnuly convpx from sive. Kast of tlie ("uloi-ado IJiver linigicnUix. Pronotuiii rattier stnai^ly convex antero-|Kisterinrly : sides strongly areuale anteriorly. West of the Colorado Kiver ami Sierra Nevada Mouu- tains ffigantra. Prouotuiu moderately and evenly convex, subquudrate. I'm. 7. — (;kn>liuk5Ical dia- i;K.\.\1 of THK SIBQENTS .STKNKLKODKS. 412 BULLETTX 03. UXTTED STATES NATIONAL MUSEUM. Surface very sinonth and sliiniuir, imiicttires very fine; legs slender; elytra widest at middle (male) or widest behind the middle (female) var. estriata. Surface less shining, punctuation coarser; legs stouter; elytra widest at the middle (male); female unknown var. f/cntilis. Klytra more or less striate; surface luster dull iiiiKx-vns. The above is the best table that I can devise at the present time. More material is necessary to elucidate the difficulties, that are verv evident. ELEODES GIGANTEA Mannerheim. FAeoilex (jlgantca Mannkrhkim, Bull. Soc. Nat. Moscow. XVI, 1S43, p. 207; Mag. Zool., XIII, 1843, pi. 127— I-kContk, Proc. Acad. Nat. Sci. rhila., 1858, p. 181— Horn, Trans. Amer. Phil. Soc, XIV, 1870, p. 312. var. f/cntilis LkConte, Proc. Acad. Nat. Sci. Phila., 1858, p. 187. — Horn. Trans. Amer. Phil. Soc, XIV, 1870, p. 311. var. catriata C.\skv, Ann. N. Y. Acad. Sci., V, Nov., 1800, j). .308. Strongly elongate, convex, smooth, and moderately shining. Head about twice as wide as long, moderately convex, often more prominently so in the median line of the frons as far as the frontal suture, not coarsely, somewhat sparsely and irregidarly pimctate, the pimctures becoming denser at the sides; frons generally impressed within the supra-antonnal convexities, the impressions frequently extending along the frontal suture; antenna' rather stout, not reach- ing to the base of the prothorax ; outer four joints very slightly com- pressed, gradually and very feebly dilated, third joint slightly longer than the next two taken together, fourth just perce]:)tibly longer than the fifth, joints 5-8. inclusive, subequal in length, the seventh and eighth subtriangular. ninth suborbicular. tenth transversely oval, eleventh subovate. Pronotum widest just in advance of the middle and about one-fifth wider than long; disc strongly convex, arcuately declivous laterally, finely, evenly, and rather sparsely punctulate, pimctures becoming slightly denser laterally; apex truncate or very f;'ebly emarginate in circular arc, finely to obsoletely margined ; sides evenly and rather .strongly arcuate in the anterior two-thirds, thence nearly straight and converging to the base, at times evenly and moderately arcuate throughout, finely margined; base very feebly arcuate, more .strongly margined, about one-fourth widef than the apex; apical angles small, subacute, and rarely slightly everted; basal angles obtuse, not roimded nor prominent. Proph'iira' opaque, obsoletely or very sparsely punctulate and rugii- lose. Elytra elongate oval, usually widest at the middle; hase scarcely emargiiuite and about as wide as the contiguous prothoracic base; humeri obtuse; sides evenly arcuate; apex fwbly produced and nar- rowly rounded; disr convex; suture fre(|uently slightly impressed; REVISION OF ELEOmiNI — BLAISDEIX. 413 clorsiiin >()iiu'tiiiirs (|('|)rt'>v('(l, Mrciiatcly ilcclivoii.^ poslpi-iorly ; surfare finely, inopiilarly, jiiid evenly punctate, rarely with closely placed series of sli»j:litly lai-(l(>m(h horizontal, finely and sparsely punctate, the punctures beconung^ denser at the periphery of the fifth seg^ment ; surface more or less ru*rulose. at times stron«rly !^o. L<'rv gradually arcuately declivous j)osteri()rly. Abdomen moderately convex and very feebly, broadly impressed on first three segments. Posterior tibiae more or less arcuate. Anterior tarsi with the first joint slightly thickened at aj>ex beneath: aj)ico-marginal tufts of spinules somewhat attenuate, brownish or yellowish, those of the fii'st joint more or less transversely confiuent and slightly modified ; groove -ubentire. Frntiilc. — Elongate and ratlu'r broad. Antenna* scarcely attaining tlie |)osterior fifth of the prothorax. Fdytra slightly depres.sed on the dorsum, not gradually attenuate and less gradiudly or more strongly arcuately declivous posteriorly. Abdomen strongly convex. Pos- tciioi- tibia* quite stout and scarcely arcuate. Apico-marginal tufts of s|)inules of the tarsi rather stout, those on the first joint of the protarsi not transversely confluent; groove entire. Measurements. — Males: Length. 31-.'^."» mm.; width. J>..">-U) nun. Females: Length, 28-35 nun.: width. 10.r)-i:i nun. (reuitdl r/idrn/fcrs. inah . — Edeagophore olijoug-ovate and some- what fusiform, moilciatcly arched. Basah elongate ol)long. longitu«linally conxcx. auimiate at ajMJX, the latter narrowly rounded, gradually and feebly recurved; base with a rounded lobe at middle third and sinuate laterallv. 414 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Stemite siibhemispherical in outline. Each lobe quite triangular; external border evenly arcuate, apex broadly rounded, with the in- ternal margin more or less arcuate; surface densely punctate and setose in apical half, seta? long and dense. Membrane not setose across the bottom of the sinus, the latter moderately wide. Female. — Genital segment (Plate 1, fig. 4) subparabolic in outline, strongly chitinized, not setose. Superior pudendal membrane broadly exposed, dorsal plates widely separated. Vahutla. — Dorsal plate subfalcate, with surface more or less con- cave, and rather coarsely, sparsely punctate; margins slightly con- verging to the apical margin, which is more or less rounded. Internal surface of the valve inwardly declivous and more or less exposed, finely and densely punctate, slightly excavated beneath the apex, the latter chitinous, semi-oval in outline, flattened, projecting up- ward and l^ackward, moderately divergent, tip broadly and evenly rounded, with the surface feebly convex and quite strongly punctate. Appendage minute, scarcely projecting beyond the margins of the minute fossa. Basal pt'otuberance.s feeble. /Superior pudendal membrane attaining the apical fourth of the segment, longitudinally rugulose. V()itrolstic r/tar. IJT) it is st'i»ar:iUMl l»y feeble chanictcr-. In fjigantea the thorax is usually nuich more strongly aniiaic at the sides, the disc less stron<>:ly arcuately declivous and inllexi'd. the pronotum appearin*; broader, as couipared to hmtjuonis where the side iii!n ajipearin;; less stroii^^dy arcuate and the pronotinn lon;:»'i-. In iis(i. rant/ifr/n. and longipilosa ; these species are rou<;hly scul|)ture(l, or caudate, and therefore not easily mistaken for git/diitiii. The ortion of the first segment is eijual in length to the -ec(»nd. the latter is about, or a little more than twice as long as the fourth : the third is a little le.ss than twice as long as the fourth. 416 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. The iiietastenuiiu laterally betAveen the coxa> is^bout as long as the width of a metatibia at middle. The profemora are very feebly swollen in external half; this condi- tion is very gradually attained from the base; the surface lines are very feebly arcuate when view^ed lengthwise; the tibial grooves are moderate in width, Avith margins rather coarse and slightly arcuate, becoming evanescent a little distance from the base but not contigu- ous at point of evanescence; floors feebly concave, opaque, and more or less minutely reticulate. Meso- and metafemora almost subequal in width throughout when taken individually, each having the corresponding sides subparallel. The grooves of the mesofemora are a little narrower than the pro- femoral, the margins are coarse and subgranulate. evanescent at in- ternal third; floors feebly concave, smooth and opaque, more or less rugulose, sometimes transversely so. JMetafemoral grooves a little narrower than the mesofemoral and very feebly concave; margins coarse, more or less granulate, the posterior frequently finely serrulate, both evanescent a little internal to the middle. The tibi» are usually quite stout and usually more or less feebly arcuate. The protibije are scarcely compiessed and moi'e or less carinate externally ; the tarsal grooves are more or less developed and asperate ; the articular cavities are more or less closed. The mesotibia* are somewhat circular in section, usually not at all carinate externally: grooves more or less developed, rather narrow, opaque and limited by the general muricate sculpturing. The metatibia' are quite cylindrical in section, otherwise like the mesotibia\ The articular cavities are closed in each. The tarsi are stout and moderate in length. The protarsi are about a fourth of their length shorter than a mesotarsus. Joints 2^ subequal in length and apparently decreasing in width in the order named, a little wider than long and together about equal in length to the fifth; first joint a little longer than wide. The mesotarsi are al)out equal to a metatarsus in length. Joints 2^, inclusive, subequal in length and very slightly decreasing in size in the order named, and together subequal in length to the fifth: the first about twice as long as wide. The metatarsi are about half as long as their respective metatibia. Joints 2 and ;i slightly decreasing in length, width, and size in the order named, each distinctly a little longer than wide, together scarcely as long as the fourth and quite as long as the first. ELEODES GIGANTEA var. GENTILIS LeConte. Elongate fusiform, more or less shining and smooth. Head about twice as wide as long, feebly convex, lateral impres- sions very feeble, frontal suture evident and usually marked by a line REVISION OK KLKODllM UL.MSI )|.l.l.. 417 of puiU'tiiiH's, \ci\ fccUly iiiipro-cd : imnctuivs soiiuMvlmt (•ired, most so on the tibia*; anterior femora muti< in the sexes; tibial spurs subequal; tarsi as in gicfiintea. M(di . — Elongate and osteriorly ; abilomen moderately convex, more or less broadly and not strongly 59780— Bull, tio— 00 27 418 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. impressed at middle on the first three segments; jfosterior tibiae more or less feebly arcuate. Measurements. — Males: Length, 20-27 mm.; width, 7-10 mm. Females: Unknown. Genital characters., male. — Edeagophore comparativel}' large, ob- long-ovate, very elongate and slighth' arched. Basale elongate oblong, evenly convex from side to side, moder- ately strongly convex antero-posteriorly. with a moderate longitudi- nal im])ression at middle in apical moiety ; sides subparallel ; surface glabrous and shining, sparsely punctate apically at the sides; apex with a rounded emargination at middle. Apicale triangular. Surface convex laterally, with a depressed oval chitino-membranous area at the middle, thence to apex broadly and not deeply grooved; apex recurved and quite broadly rounded; sides quite straight, although feebly but broadly sinuate at apex; hose with a well-marked, rounded lobe at middle and quite strongly sinuate laterally. Sternite subparabolic in outline and slightly transverse. Each lobe with the external border quite evenly and broadly arcuate from base to apex, the latter narrowly rounded; internal border short and arcuate; surface quite convex, glabrous in basal half, thence to aj^ex strongly punctate, the punctures increasing in density, each with a rather long seta, the latter dense in apical third. Sinus broad and more or less oblong-oval, the inner and contiguous surface of the lobes inwardly and gradually declivous. Membrane not setose and irregidarly I'ugose. Ildhltdt. — California. The exact locality is not indicated on the specimens at hand. LeConte's cotype before me bears a green " Calif." label, but in his description of the species he gives San Diego, California. All the specimens that I have seen and which were referred to gentilis by Doctor Horn have thus far turned out to be something else, and I am not sure that he had typical specimens in any of these instances. dcutilis., no doubt, occurs in Central and Lower California, as well as in the southern part of the State. Lower California specimens" referred to (fentUis by Horn were fnsi/laris or some variation of 07nissa. Colonel Casey failed com- |)letely to recognize f/enfllis, and considered the race described in this paper as pi/f/nuva as that species, saying that it j^ abundant at San Diego.'' T have a specimen which he identified as gentilis. It is simply a pi/gmaa with a very quadrate prothorax. Pyc/mo'd is abundant at San Diego, but gen til is seems to be very rare, for I have not seen any recently collected specimens. During "Soo Prnc. ralifornia Acad. Sci., 2nd ser., IV, Tt. 1. pp. 306 anil 340. ''AiiM. N. V. Acad. Sci., V, Nov., ISOO, p. .*59n. HKVISION Ul' KLKODIINI- Itl.AISDKLL, 419 iiiaiiy ycar>" rcsiilciicc in San D'w^u County and aft«>r coUt'ctin'; over the entire western half of the county I had not a -iiij^h- specimen. Nuniher of specimens studied, li; one a I^'Contian cotyi)e. TyjH' in the I^'Conte colk'ction in (■ainhridjje, Massachusetts. Tyjx-hx (ilitij. — San I)ie*ro. Caiifoiiiia. Salient tyjH-ch-nieml>ranous area of the ajiicale of the edeago- phore. while the same characters in rstnata are intermediate !>e- tween gcnfill.s and gigaiitai. \\n{ these charactei's are no doubt subject to considerable individual variation. Gentilh therefore appears to be nothing more than a race of gignnfrn. I><'Conte's ty|)es iM'ing simply an extreme nanoid form, while Hopping's specimen has the normal size of gigmttid. The females probably do not differ from the general form of the feuuile gigttntiui, the nniles 1mm ng dimorphic. (Ivuvral oltxtriuitiima. — The mentum is tra|)ezoido-paral)olic in out- line and comparatively small, setose, the seta* being moderately long 420 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. and somewhat transversely arranged on the anterior half so as to give a distinctly bearded appearance. Otherwise as in gigantea. The presternum is moderately prominent ventrally with the coxae, convex antero-posteriorly and grooved; there is a small mucro behind. The mesosterniim is arcuately declivous and more or less vertical, concave to a varying degree. The metastornum laterally between the coxse is about as long as the width of a mesotibia at middle. Comparative measurements gave the same relative proportions l)etween the abdominal segments, metasternal and abdominal salients of the two extreme specimens of gentilis before me. LeContian cotype. male. 20 mm. ; Hopping's large example, male. 27 mm. The abdominal salient is about a third of its width broader than the metasternal process; the abdominal salient is subquadrate, a little longer than wide; the post-coxal portion of the first segment is equal to the third in length, and the second is twice as long as the fourth. The profemora are feebly swollen in outer half, but very gradually so; the grooves are moderate in width with margins feebly sub- cariniform, feebly arcuate, converging to become contiguous and evanescent at basal fourth ; the floors of the grooves are smooth and scarcely concave. The mesofemora are very feebly and just noticeably widened in middle third, narrowing slightly and gradually each way; the grooves are a little narrower, margins scarcely subcariniform and more or less granulate, scarcely at all arcuate, converging slightly to become evanescent at basal third without becoming contiguous; floors of grooves nearly plane. Metafemora are not swollen, l)ut with the opposed surfaces sub- parallel ; grooves narrower and otherwise as those of the mesofemora. The tibia' are very slightly arcuate in the three males at hand. The protibia' are obsoletely subcarinate externally, tarsal grooves more or less obsolete: the articular cavities are closed. The mesotibia' ai'e obsoletely subcarinate externally at basal third, otherwise as in the protibire. Tlu' inetatil)ite are more or less rounded, not carinate and obsoletely grooved. The tarsi vary in stoutness according to the size of the example. The protarsi are about a fifth of tlieir length shorter than a meso- tarsus. Joints 2-4. inclusive, are subequal in size, apparently very feebly wider than long and together about equal to the, fifth; joint one distinctly longer than wide. The mesotarsi are about equal in length to a metatarsus. Joints 2-A^ inclusive, are subequal in size, very feebly longer than wide, HKVISION (iK KLK(»I>IINI — BLAISDKI.L. 421 t()<;otli('i- iihoiii (Miiial to (lie lirst ; llic lifth scarcely as long as the three jjreccdiii^ joinls taken t()Lr<'ll><'i"- The metatarsi arc a little loii^irr thati half the It'ii^ih of their res|)ecli\e metatihia. ,I()iiis -2 and '.\ ^iilH'(|iial in si/.e, (li>tinctly l()iiolished. /lead rather variable in size, moderately convex. im|)i<'ssions obso- lete, rather coarsely punctate, the piiiictui'es sparse toward the middle, denser and setose laterally. Anteninv somewhat variable in stoutness, short, reaching to alxxit the |)rothoracic base, slightly ('om|)i'essed and scarcely dilated in the outer five joints; third joint scarcely longer than the next two to- gether; fourth to the seventh, inclusive, subequal in length; fourth sometimes slightly longer; eighth triangulai"; ninth orbicular: tenth feebly transverse; eleventh subovate and more or less obli(iuely trun- cate at tip. Pronofuni subquadrate, widest at about the middle, slightly wider than long; dific moderately convex, very finely and sparsely punctate throughout ; apex truncate in circular arc, more or less obsoletely beaded: sitfrs broadly arcuate anteriorly, more or less straight and convergent in basal half, at times somewhat arcuate throughout, very finely beaded; ha^e subtruncate, rather finely beaded, and a little wider than the apex; apical angles obtuse, not rounded nor anteriorly prominent; basal angles obtuse and not prominent. Propleuro' finely punctulate anteriorly and more or less obsoletely rtigulose. Hlytni elongate oval, widest at or behind the middle; hdsc subtrun- cate and about equal in width to the contiguous prothoracic base; humeri not rounded nor prominent; sidex arcuate, apex subacute and not at all produced; dlxr moderately convex, more strongly rounded laterally and arouately declivous posteriorly; surfaee finely or rather coarsely punctate, punctures sparsely placed and not asperate, not denser laterally and arranged without trace of order throughout, at times with evident closely placed series. Epiplenrn' moderate in width, gradually narrowing from base to apex, superior margin quite straight when viewed longitudinally; surface smooth, sparsely and obsoletely punctulate. Sferntt quite strongly punctate and rugose throughout. Pamph'ura moderately closely punctate. Abdomen shining, sparsely and irregularly punctulate, rather obso- letelv and reticulatelv rujrulose. 422 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Legs moderate in length and variable in stoutness. Femora rather sparsely punctate, the anterior nnitic in the sexes; anterior tibial spurs almost equal. Tarsi slightly dissimilar in the sexes. Male. — Rather narrow, not distinctly ovate, more fusiform. Elytra quite evenly arcuately declivous and somewhat gradually narrowed posteriorly. Abdomen feebly oblique, moderately convex, and more or less broadly and feebly impressed at middle of first two segments. Legs somewhat slender, especially the tibia*. Anterior tarsi with a small transverse tuft of modified spinules at tip of first joint beneath, the tuft closing the plantar groove. Female. — Kather robust. Elytra widest behind the middle, arcu- ately and somewhat obliquely declivous and somewhat rapidly narrowing posteriorly. Abdomen horizontal, rather strongly and ev^enly convex. Legs rather stout, the tibia' moderately so. First joint of the protarsi not modified at tip beneath, plantar gi'oove wide. Measurements. — Male: Ijcngth, 20 mm.; width, 7.2 mm. Females: Length, 22.5-2G mm ; width, 9-10 mm. Genital characters., male. — ^Edeagophore as in gigantea. Sternife rather short and transversely parabolic in outline. Each lobe rather small and subtriangular; external border subangulate at middle, thence to base feebly arcuate, to apex obliquely truncate, apex nar- rowly rounded; inner border feebly arcuate; surface densely and strongly punctate in apical moiety, each puncture with a long black seta. Membrane not setose, sinus broadly oval. Female. — Genital segment sub])arabolic in outline, feebly elongate and finely setose. Superior pudendal membrane broadly exposed, and the dorsal plates widely separated. Valrula. — Dorsal plate subfalcate, with surface more or less con- cave, facing upwards and outwards, coarsely punctate, each puncture with a short, rather stout semirecumbent seta ; borders gradually converging to the apical border, which is more or less rounded ; inter- nal border quite sharp and broadly sinuate; internal surface of the valve much exposed and inwardly declivous, densely and rather strongly punctate in apical third beneath the apex, each puncture with a short, curved, and semirecumbent seta. Apex chitinous, semi- oval in outline, flattened, projecting upward and backward, mod- erately divergent, tip broadly rounded ; surface feebly convex and more or less i)unctate. Appendage minute, scarcely projecting beyond the fossa, which is situated in an excavation between the external surface of apical base and the apical margin of the dorsal jilate; short, semioval in form, with a few short seta" at tip. Ba.'^al prominences not noticeable. Ventral ate ml surfaces as in g'/gantea. UKVISION OF KLKODIINI r.l.AISDKI.L. 423 Iliihlttit. — Ciiliforijia (Presidio saml l»ill>. San FraiiciMo. Juiiu; San Matt'o Coiiiity. at Iloly Cross CcmctiTX : Alaiiu'da County). NnnilxT of >-|H'cini('ns studit'd, 8. Typt' in Colonel Ca^t-vs collection. T lii>(-los than twice as lon^ as wide. Prothort and nearly strai^dil in hasal half, hasal anjrles oi)tiise and not at all prominent: disc mos convex pronotuin, less arcuate sides of the prothorax, and -lioiter elytra " (Casey). From hnKftcollis it is recognized by having the ** prothorax more anteriorly dilated, much shorter and rather more robust anteinue, and coarser punctuation" (Casey). It is undoubtedly more closely allied to f/enfifis tlian to any other form belonging to the present subgenus. It is also very variable as indicated by Casey'.s two specimens and the small series liefore nie. The male, as directly compared with the LeContian co-type of ffcnfih's, has the same form, but is more polished, has finer punctu- ation, more slemler legs, especially the tibia', and i^ altogether a more graceful insect. Cnfortunately the female of . .".ll.— CllAMIMON. I'.inl. ( "(Mil .-Aiiicr.. I\'. rt. I, 1.SS4. p. 84. Eh'odcs haydctlii Li:("ontk, Troc. Acad. Nat. Sci. I'liila., ISHS, p. ISn. Eloii more or less arcuate. First joint of the protarsi somewhat pr(xluced at tip beneath, bearing a tuft of golden pubes- cence, which obliterates the plantar groove at that i)oint. Fenxilc. — Tvobust, often fusiform. P^lytra broadly oval, often one- half longer than wide, very suddenly arcuately or vertically declivous posteriorly. Abdomen rather strongly and evenly convex. Posterior tibia' not arcuate. Anterior tarsi unmodified. Mea^uref/wnfs. — Males: Length, 27-35 nnn. ; width, 8.5-9.5 mm. Females: Length, 25-30.5 mm.: width. 10-12 nnn. Geir'ddl vharncters^ male. — Edeagophore with the apex of the apicale moderately wide and eveidy rounded, slightly recurved in apical fourth and punctulate above; general surface feebly convex although broadly depressed. Otherwise as in (/'((/anfea. Female. — (renital segment with the general characters as in gigatitea. Valrifla (Plate l,fig. 7). — Dorsal plate subfalcate, surface oblique — facing upwards and outwards, quite densely and rather coarsely punctate in apical half, each puncture with a very small decurved. subrecumbent seta; internal margin not strongly defined; the internal or pudendal surface of the valve very densely punctate and setose as above, scarcely excavated below the apex. Appendar/e and fossa minute, feebly visible from above. Other- wise as in (jlgantea. Uahitat. — Arizona (Kearn's District, Navajo Indian Reservation, April, A. "W. "Barber: Peach vSprings, July; Santa Rita Mountains, June, Hubbard and Schwarz; Phoenix, collection E. C. Van Dyke; Fort Grant, July, Hubbard and Schwarz; Tucson, March; Sulphur Springs Valley, May, Hubbard and Schwarz: Oracle. July: Galliuro Mountains, May, Hubbard and Schwarz; Fort Yuma, Prescott, June, Barber and Schwarz) ; New Mexico (Las Vegas, August, collection H. S. Barber: Coolidge. Luna. Hubbard and Schwarz: Santa Fe. collection C. V. Riley) ; Colorado (Colorado Springs, June, Hubbard and Schwarz; elevation 6,000-7,000 feet, Wickham : La Junta, Southwestern (Strecker) ; Holly, Fort Collins, San Luis Valley, and Trinidad, Wickhanrs list); Texas (Marfia, July, elevation 4,('.00- 4,800 feet, H. F. Wickham; Alpine, July, elevation 4,400-r..000 feet) ; Kansas (Western, Hubbard and Schwarz) : Oivgon ? (one specimen bearing this state label in the collection of the U. S. National Museum); Mexico (Northern Sonora, Morrison; San Luis Potosi; HKVISIOX OF KLKODIIM- MLAISDKLL. 427 Ilaciciula dc Hlcados; PiiiTiis: Sail IN'dro in Coalniila. Doctor I'aliiuT). Niiiiilu'r of sjM'ciinoiis studied, 8(5. TyiM' is in tlu' LcContc collection, TyjH'-loctiHty. — '• Flimu'ii (iila" (I^Conto). Sniicnt tyiH'-chdi'dctcrs. — Eloiipite, l)lacl<. Thorax ohsolotoly punc- lulatc. Elytra Hiudy punctulatc. piiiictiircs subscriatc ( I^'Coiitc).' D'uKjitost'ii rhdnirttrs. — (Mosclv related to (/iliape. The females fre(|iieiit ly ha\e the elytra more or less llalleiie(l on th<' dorsum. The i)rolhora.\ is less arcuate at the sides, ehieHy because the disc is (|uite stiou^Iy and transversely convex, with sides moi«' or less strouirly and ai'cuately dellexed and in nuiny instances more oi' less feebly inflexed as well, so that the margin is eomi)letely invisible when the prothorax is viewed vertically fi'om above. The pronotum is oidy apparently lonjxer than wide, for by direct measurements and in traeinjjs I do not find much dilferenee betwet-n loiu/icoUis and t/h/dufi ro(bice at the inflexed maririn a very slight concavity." It is only a synonym. Specimens collected by Doctor Palmer in Mexico had the elytra distinctly but finely punctato-striate: other forms were taken but all referable to the present species. 428 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. (rcneral oh.scrvations. — The inentum iipj)ears to fce more trapezoido- parabolic, otherwise as in gi(/(nitc(i. The prosternum is also about the same as in that species, probably not as prominent ventrally, and the ante-coxal portion more us. Joints ^-4 suhe(|ual in length and scarcely h»nt. ELEODES INNOCENS LcConte. Hhixlix initiicins Ij;('(>mi:. Siiiillisoii. Misct'll. ('nil.. .\<>. HIT, t^<">fi. p. III. — Horn, Trini.s. Amer. I'hil. Soc, XIV, 1S70. p. mii. Elonirnto, suhohlonff to ovate, sMl>oj)n(|ne to feohly shininly and more or less irregularly punctate, antenna- stout, reaching to the prothoracic base, outer four joints scarcely or very feebly com- pressed and not noticeably dilated; third joint shorter than the next two taken together: fourth to the seventh, inclusive, sul)e(|ual an in advance of the middle, very little wider than long; dm- very moderately and quite evenly convex, at times noticeably declivous at the apical angles, very finely to obsoletely punctulate; apex truncate to feebly emarginate later- ally within the angles, obsoletely margined; .svV/^.s more or less feebly and evenly arcuate from base to apex, often rather straight behind the middle, very finely margined; haxe truncate to feebly arcuati' and finely margined, little wider than the apex and about equal to the length; apical angles obtuse, scarcely rounded and more or less l)rominent, not dentiform; basal angles obtuse, not rounded nor j)rominent. Proph unr obsoletely punctulate and more or less rugulose. feeldy convex and very feebly defined fi-om the |)ronotal disc by the fine marginal bead. Kllltni oval, smooth, alxmt twice as long as wide, widest at or a little behind the middle; Ixtxc feebly emarginate or truncate, fre- ([uently slightly wider than the contiguous prothoracic base; hmnrn obtuse, not rounded; sides evenly arcuate, apex not produced and rather narrowly roundeil ; J/.vr slightly flattened on the dorsum and quite strongly convex laterally, arcuately. and vertically declivous posteriorly; surface striato-punctate, the strial series moderate in 430 BULLETIN ii'.i, UNITED STATES NATIONAL MUSEUM. size and closely placed, usually more or less ermaller than li;:Iilly (liicUi'iu'd fXtiTiially ; tlic <;ro()V('s an' slrucliirally similar to iho^c of the proft'inora. hut the (m1 Im'coimc coiit ijriioiis a short distaiicc from the fcinot'al liasc. Till' mi'ta femora aiv hut sli<;litly narrowed at hasc, and therefore ha\e the opposed siiifaces siil)j)arallel ; the <;rooves are as on the other femora. l)Ut have the ed-al foiiitii hefoi'e hc'eomin*; eont i<;iioMs. 'J'he j)r()til)ia' are ohsoletely earinate «'.\ternally and the tarsal •grooves more or less ohsolelc. The mesotihia' are snheylindrical and very slin^htly increasin<; in diameter from hase to apex; the j^rooves are faintly indicated and the surface a>perate. The metatihia' are snheylindrical. nai-ro\vin«; slightly towaid hase; the «;roo\'cs are feehle and exist as narrow linear impressions between the nuM'^nnal asperities. The articular cavities of all the til)ia' are (juite closed. The tai-si are modt-rate in leiijurth and rather stout. 'J'he protarsi are about two-sevenths of their len its tii)ia. Joints 2 and 3 are about ('(jual in length and iircatllh. together (piite e(iual to the length of the first or fourth. XoTK. — T sent to Mr. Hlancharc' an exam])le of the peninsular form, which I refer to i/isi/ltiris for comparison with iititoccns, with the fol- lowing result : " It is .surely a smooth innocensU The types are 1 male. 1 female. Arizona, having the elytra subsulcate. anterior femora of the male angulate at outer three- fourths. In both sexes the same femora markcdhj fattened and stronr/h/ maiginetl l)eneath." I had labeled the specimen E. insularis Linell, and Mr. Hlanchard still further writes: " I have been looking at the descriptions of In- iior, iix aulii(>ii is i/lis with niijniKi as tlic roiitral foiiii the valvular apicos arc short, loiiiKlrd at tip. coiivrx above and s<»iii('what concave l)cncath. incnihi-ano-ciiit inoiis, scarcely divi-r^ent or jinxhiced. In Stciuh txhs with phites which form an im- portant part of this paper, will elucidate what has been stated above and also demonstrate that the sjiecies ])reserve a wonderful com- numity of subtreneric genital structure. The species constituting Group A may be differentiated as follows: Smaller s|K'cies. scarcely robust, ninre er less shiniiij:, sulmsperately sculpturotl; elytra (listiiictly jrradiially narrowo*! posteriorly, apex tiuito acute. Males armed ; feuiales mutic tunrfjinntii. Larjrer sp»vies, rather robust, more or less opaque, asix»rately sculptureil ; elytra nuxlerntely narrowed posteriorly, apex obtuse. Both sexes more or less aruie- fin»Hl by a de««p excavation at bas«> of ai>ex : api»endjiB«»8 larger. _.ondai:es mannnilliform. with [mmicII of set jo at tip /»/rt»ii/»c»i»iij«. The males ajiparently have no constant specific differences; at least I have not l>.'en able to ditferentiate anv. 436 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Relationships. — There is no doubt l)iit that marginata and scdb- ricvla are closely related, and have undoubtedly diverged from a common ancestral form within recent times. The more obscure rela- tionships of jjlf^ixipcnnis have been referred to elsewhere. Distribution. — Discogenia is a subgenus jJfeculiar to California and extends eastward into the Sierra Nevada Mountains as far as Lake Tahoe (elevation 0.2S0 feet), possibly into western Nevada; in Alpine County to an altitude of 7,000 feet (Blood's meadow). I do not consider plnnipennis as a normal constituent of the pres- ent subgenus; if it should jsrove to be, then it nuist be considered as an eastward modification. In the latter case the first statement will have to be altered. AVhen the obscure question of relationshijis shall have undergone greater solution, then we will be able to si:)ealv more intelligently upon this problem. Thus far I have only seen specimens of mnrghiata fi-om the uiari- time regions of central and northern California. The nucleus of distribution seems to be about the Bay of San Francisco. Scahiicula is both montane and subuuiritime, evidently confined chiefly to central California, and undoubtedly extendiug more or less north and south of this central region. PJditipennis has only come to me from Arizona, New Mexico, and Colorado. ELEODES MARGINATA Eschscholtz. Eleodes marginata Eschscholtz, Zool. Atlns. Ill, 1S33, p. 10, — Manneb- HEIM, litill. Soc. Nat. Moscow. X^'I. 1S4;5, p. 2(>.S. — LkContk. I'ror. Acad. Nat. Sci. rbila., 1S58, p. 182. Elcodcs flxchcri Mannerheim. Revue Zool., Ill, 1S40, p. 137; Bull. Soc. Nat. Moscow. XVI, 1S43. p. 2(>'.). Discogrniti niarginatn LeConte. Smithsou. Miscell. Coll., No. 167. 1866, p. 117.— Il0K.\, Trans. Anier. Phil. Soc. XIV, 1S70, p. 320. Black, oval, and more or less elougate. Head twice as wide as long, equal to one-half the width of (he [jrothorax, plane to feebly convex, shining. nu)re or less impressed laterally near the frontal suture, sparsely punctate, confluently so at the sides. Antenna^ reaching to the posterior fourth of the pro- thorax, outer joints gradually and feebly dilated; the third about three times as long as the second; fourth twice as long as the same; fifth, ninth, and tenth subequal ; sixth, seventh, and eleventh equal in length and slightly longer than the fifth. Pronofnm feebly shining, widest at the middle, about two-fifths wider than long; disc evenly and not strongly convex, rather coarsely, irregularly, at times confluently ]mnctate, laterally not bi-oadly and very feebly impressed, and there scal)rous from minute granules; apex moderately and evenly emarginate, finely margined; sides REVISION OF EL?:ODIINI — BLAISDKLL. 437 evenly and hrondly rounded, naiiowly and jiciitcly niai'^incd. niar*rin I'cHexed; bat»- inoiv or less ftrljly arcuate. al)out one-eiirlith of its- width ely and sub asperately muricato-granulate laterally, and without any sign of oriler, Ep'iplcuiuv moderate in width at the humeri, gradually narrowing to apex; surface feebly concave beneath the humeri and suliasperately punctnred. Sterna more or less strongly rugulose and punctate; punctures setigerous. Farapleune irregularly and rather strongly punctate, interstices glabrous and shining. Abdomen rather coarsely, thickly punctate and rugulose on seg- ments one and two, less so on the third, very sparsely so on the fourth and fifth. />< Y/.s moderate in length and thickness. Anterior tibial spui"^ simi- lar in the sexes the anterior spur longer than the posterior, both acute and rather stout. Protarsi nearly similar in the sexes, both with the first joint distinctly thickened at tip l>eneatli. Mali . — Elongate oval and more or less pointed posteriorly. Elytra more or less slightly wider than the thorax, evenly. ol)li(|uely. and arcuately declivous posteriorly, with the ai)ex acute and more or less feebly produced. Abdomen moderately oblicpie and convex, feebly and broadly flattened on first two segments. Anterior femora armed with an oi)tuse tooth. Protarsi with the first joint feebly and trans- \er-ely produced at apex beneath, plantar groove obliterated apically, ~|)ace between the apico-marginal tufts of spinules simtdating it. Fi niiih'. — Somewhat robust. Elytra rather broadly oval and w ider than tli(> i)roth(irax. slightly pointed, arcuately and slightly obliquely declivous posteriorly. Abdomen horizontal. (|uite strongly and evenly convex. Profemora nnitic, scarcely sinuat<'. Protarsi with the first joint distinctly and transversely produced at tip beneath, plantar groove quite obsolete. 438 BULLETIN G3, UNITED STATES NATIONAL MUSEUM. Measurement. s. — Males: Length, 18.5-19 iniii.; width, 0.5-7 mm. Females: Length, 1()-17 nnn. ; width. (').5-7 nnn. Genital characterH^ male. — Edeagoi)hor(' of the usual oblong-ovate form. Basale variable, oblong, more or less feebly convex, with sides very slightly arcuate. Apicale triangidar, sides nearly straight, slightly swollen toward base; apex more or less acute; base with middle lobe rather small and rounded, sinuate laterally; dorsal median groove moderately wide apically and linear toward base. ClavcB stouter than usual, shorter and not so attenuate toward apex. Sternite (Plate 2, fig. 11) with each lobe rather long, narrowing somewhat toward apex, the latter rounded; external border evenly arcuate, sometimes slightly angulate at middle, thence oblique and straight from angle to apex; internal border arciuite. Strongly chitinized, surface feebl}' convex and thickly set with long stiff setre in apical half. Seta* do not extend across membrane at bottom of the sinus. Female (Plate 2, figs. 12 and 13) genital segment triangular, not setose. Yahnila. — Dorsal plate nearly horizontal, feel)ly concave or convex, impunctate; external border nearly straight and directly continuous Avith that of the apex, becoming slightly more prominent at the transitional point on account of the external margin of apex becom- ing slightly sinuate; internal margin slightly reflexed, feebly arcuate and directly continuous with the internal apical margin which is strongly arcuate on account of the excurvature; apical margin not in the least defined from apex, the dorsal surface of both being di- rectly continuous, the transitional area forming a concave surface. Ape.v produced, not strongly chitinized at base externally, ex- curved, dorsal surface more or less convex from side to side and directed upward and slightly outward; ventral surface concave, directed downward and inward ; internal surface more or less mem- branous and set with very short chitinous seta>; tip narrowly rounded : fossa obsolete with surface not in the least excavated at its usual site. Appendage minute and punctiform, without seta^ and located on the external margin, projecting but slightly be^^ond the margins of its minute cavity. Si/perior pudendal memhrane attaining the niiddio of the dorsal plate. Ventrolateral surfaces not inflated, not .strongly convex and gradu- ally tapering from base to apex; submarginal groove scarcely visible. Internal margins of the valves contiguous. REVISION OF KLKOKIIM- MLAISDKLL. 439 Genital fissiii-c closed and xcrv narrow, fin«'ly setose within. In- ferior j)U(len(lal ineiiihrane not visiWle when the \alves are in adthie- tiun. //r//n7^//,^('alirornia (San I-'rancisco all (he year around ; Ahiniechi County; Trinity County, I)r, K. C. \ an Dyke). Nuinbor of sjx'ciniens studied, (iO. Type i)rol)ahly in the Kschscholtz collection. Type-hxdlity. — Near San Francisco, California. Salient tj/pe-rhdrartcrs. — Thorax subopaiiue, sliH;htly transverse, sides rounded, surface densely and more or less confliiently punctate, scabrous and feebly impressed laterally alon«; the marfjins. P>lytra densely subscabrous with reclinate nuiricate <:^'anules, declivous and rather strongly acute behind. Anterior femora armed in the male; mutic in the female. Diagnostic characto's. — Although usually smaller than .srahrirula, it is at times quite difficult to ditierentiate; this is best done by direct comparison: It is less stron soft and scattered. Inferior pudendal membrane not visible. Habitat. — California (Lake Tahoe, Eldorado County, July, ele- vation (»,280 feet ; Big Trees, Calaveras County, August, elevation ■i.TOiJ feet; Blood's Meadow. Alpine County, Jidy, elevation 7,000 feet; Tuolunme County, D. W. Coquillet and E. C. Van Dyke; Colony Mills. Tulare County, elevation 5.41.") feet, Charles Euchs and Ivali)h Hopping; Fresno, Alameda, Marin, and Sacramento counties). Xumi)er of specimens studied, 50. Type (female) in the LeConte collection. Type-locality. — Sacramento, California; collector, Mr. J. Wittick. Salii'tit typc-'haractcrs. — Thorax oi)a(iue, transverse, sides rounded, densely and confluent ly scabro-})unctate. on each side liroadly iuj- ))ressed. Elytra densely scabrous with reclinate granules, declivous and acute behind. Anterior femora with an ol)tuse tooth (LeConte). Piayiio.stir f/iar/irtrrs. — S<tcri(trly. Alxlonicn rather sti'on^'lv convex from side to side. l*rotarsi with the (irsi joint slij^jhtly thickened at tip beneath, bearing; a small tuft of s|)inule<. Measnnnniits. — Males: Lciiijtli, l()-20 mm.; widtli, O.S-S mm. Fevxtles: IxMi^th, 1(').2-1!).5 inin. ; width, lS>-\) mm. Genital eharactevH^ male. — K(leap)plioie i-ather small, naiiow, obh)nlightly convergent to aj)ex: ai)ical border obli«|ue. angle rounde at tip; fossa an excavation at base of the external surface of ajx'X and contiguous to the apical border of the dorsal plate. S)i ptrior pudindal menihnme attaining the api<-al third of the dorsal plate and more or less longitudinally rugulose. Basal promiivuncea not developed. 448 BULLETIN 63, UNITED STATES NATIONAL MUSEUM, Ventrolateral surfaces. — Body triangular, with surface lines straight, evenly convex from side to side; surface smooth and im- punctate; submarginal groove distinct and moderate beneath the narrowly expanded external margin of the dorsal plate, terminating at the fossa. Apex membranous beneath its chitinous and expanded dorsal surface, finely setose; ventral plate distinctly defined apically. Internal margins of the valves contiguous, fissure short and apical. Habitat. — Arizona (Williams, May, Barber and Schwarz; South- ern, coll., E. C. Van Dyke; Chiricahua Mountains, June, Hub- bard and Schwarz; at base of Humphre^ys Peak, August, elevation 9,500 feet, F. H. Snow); New Mexico (F. H. Snow; Hubbard and Schwarz; Coolidge; Magdalena, August, F. H. Snow% Warren Knaus) ; Colorado (Manitou, Packard). Number of specimens studied, 25. Type (female) in the LeConte collection. Type-locality. — New Mexico. Salient type-characters. — Head and thorax si)arsely and finely ])unctate. subdepressed. ai)ex l)roadly emarginate, base truncate, sides strongly rounded, posteriorly briefly sinuate, basal angles rec- tangular, small and not prominent. Elytra obliquely declivous behind and sinuately attenuate at apex, humeri obtuse, sides suddenly inflexed, along the suture finely punctate, at the sides and apex densely sculptured with small slightly elevated granules, anterior femora subsinuate (LeConte). Diagnostic characters. — Quickly recognized from niarginuta and scabiicula by the flattened elytral disc. The prothoracic apex is gen- erally slightly wider than the base, the sides are evenly arcuate anteriorly and converge somewhat posteriorh% becoming slightly sinuate in front of the basal angles, wdiich are rectangular; disc widest in front of the middle. In .some specimens the elytra are very feebly flattened — in fact, (luite evenly but not strongly convex — and the smaller of such ex- amples greatly resemble the elongate form of snoiril found in Ari- zona. The genital characters must here be relied upon for their separation. Phwipcvnh has heretofore been considered a Hhipylis. It is the nearest approach to Kmhaphion that we possess; in fact, it could with as nnich propriety form a section in the latter genus as the one in which it is now retained, and where it also must form a section intermediate between Discogenia and Einhaphion. In genital char- acters it is an Emhaphion., in facies an Eleodes. The constriction of the anterior tibia^ at base is not peculiar to the genus Emhaphion. It is observed to a greater or less degree in the different species of Blapylis; it is absent in the genus Eleodes.^ and REVISION OF KLEODIIXI — HLAISDKLL. 449 apj>ears to Ikmi stnictiiral iiioililiciitioii with a fiinctinii wIiom" analogy is foiiiid in the fciiioi'al tcctli of that >iih;r«'iiu-. It iiii^ht have been a wise foiirsc to liavc crcatctl a new <;<'niis for its ivcrptioii. I)iit I am o[)|)os(m1 to coiitriljut iii, noticeably so in the larger specimens and somewhat slender in the smaller ones. The i^rotarsi are about one-fifth of their length shorter than a mesotarsus. .Toint one distinctly longer than the second, the suc- ceeding three about e(pial in length. jn>t the least longei- than wide; the fifth about as long as the j)receding three taken together. The mesotarsi are about one-tenth of their length sht)rter than a uu'tatai'sii-. Fii'^t joint about one and a half times longer than the second, the latter to the fourth inclusive subequal and distinctly r.i tTso - 1 ui 1 1. (V3 — 01) IS) 450 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. ]()ii<2:t'r than Avide; tifth slightly loiigiT than the p^vceding two taken together. The metatarsi are about three-sevenths of their length shorter than a nietatibia. First and fourth joints subequal, each about equal in length to the second and third taken together: the latter two are sub- equal in length. rNKECO(JMZEi) srp:ciES. ELEODES VICINA LeConte. Ehodcs vkinu Li.Coxti;, Ann. Lye. Nat. Hist., New York, V, 1851, \i. 133.— Horn, Trans. Anier. Phil. Soc.. XIV, 1870, p. 308.— Casey, Ann. New York Acad. 8ci., V. Nov. 1S.-. ELEODES NITIDA Casey. Eleodcs iiifidd t'A.si.v, Ann. N. Y. Acjid. Sci.. \I. Nov. IS'.tl. ji. ."iS. ELEODES REFLEXICOLLIS Mannerheim. Eleodcs nflfuicoUis .Man.nkkhki.m. r.ull. Soc. Moscow. XVI, lS4;i. \\. 270. Genus EMBAPHION Say. Embai>hioii Say. Jonrn. Aeail. Nut. Hist. I'hihi.. Ill, 1S24, p. 2.j4.— Lacordaire, Genera des Coleopt.. \. 1859, p. 152. — LeConte. Classif. Coleopt. North Anier. (Smithson. Miscell. Coll.), lSisli^litly l()n<;i'i- ami lari are -iniihir in the sexes antl siniph'. The alxlonien is always on the same horizontal j)lane as the sterna; its so<;nients are on the same jilane in mnricittnui, rontiixum, <(>n- tt'drtuni and plmnnn ; the third segment slightly oblique in r/lab'^iiii and eloiujiitiim^ and distinctly so in thifirssnifi. The genital eharaett'rs are (piite characteristic and innnediately follow pldnijxtniis of the subgenus l>is< (x/ciiid in the evolutionary series; they are very ditlerent from those observed in the remaining genera of the tribe, and only phyllogenetically related to Blaps, The generic genital characters are as follows: Male. — Apiculc of the edeagophore triangular; dorsal surface more or less strongly convex, and without median groove; sternite bilobed; lobes united by a membranous interval. Femah'. — (renital scf/mcnt triangidar. or without the a|)i(e.- trian- gulo-trai)ezoidal. somewhat depressed; dorsal surface ipleuial line follow > th«' >ame rule: in the very narrowly margined species it is quite ilistinct. and indicated in the whole 452 BULLETIN 6.'}, UNITF^D STATES NATIONAL MUSEUM. Contraclum Glabnun Elongalum course eitlier by a faint groove or a distinctly elevated line; it be- comes almost entirely absent in the broadly margined species. In the middle of the series the marginal line of the elytra does not attain the apex {(jlahrum^ contractum^ and jjlanmn) ; at the extremes of the series it does. In those species with feeble elytral margin the humeral angles are more distinct and even prominent {depressuni), and less so as the margins increase. Note again what has already been said relative to the obliquity of the third abdominal segment (see p. 4.")! and below). Genealogy. — The scheme herewith presented illustrates what has already been said above relative to the apparent progressive differ- entiation of the species. The two species which form the extremes of the whole series are the most distinct, not only from each other, but from the other members of the same dichotic stem of the ancestral trunk. MitHcatinii has the broadest foliaceous margin: the basal angles of the pronotal margin project l)ackAvard over the humeral an- gles of the elytra ; the anterior tibiae are not carinate externally. Depressvm has the narrowest margin; elytral base more dis- tant from the prothorax, and (juite densely sculptured. In each hemi-series the mar- ginal line decreases — tliat is, strongest in inuncafuni, weakest at apex in contractum; strongest in depressum, weakest at aj)ex in glahrinn. It can be assumed that the acquisition of the ol)liquity of the third segment might determine the lines of divergence from the ancestral trunk. A careful consideration of the diagram in connection with the characters enumerated under the sj^ecific headings should further elucidate the interesting relationships. I>}st)}])ution. — Thus far I have studied material from the follow- ing States and Territories: California. Arizona, Nevada. New Mex- ico, Texas, Colorado, Kansas, Nebraska. Wyoming, and South Dakota. It will be observed that A'nibajf/iion has a large area of distribu- tion — approximately two-thirds of the region west of the Mississippi River, not entering the region west of the Sierra Nevada Mountains, nor the extreme northwestern and northern States. Deprenxum from eastern central California. Elongaium from eastern northern California and western Nevada. Depressimi 3rd. Se^eirt Horizontal SrcLSerfment Oblique Fig. 8. OeXKAI-OCICAL DIA(iHAM OK GEXrs KMBALPHION. RF.VISIOX or KM'.onilNI- HI.AISDKLL. 453 Crhihrniii from Aiizoiia and New Mexico. ('ontrdrtnin from New Mexico. Planum from Kansas and Wvomiiias, and A\'vomiiilex contnutuin. Acute margin attaining the apex itluniiin. Thorax very coarsely puncturiHl. slightly distant from elytra, the latter liro.idly oviil. s>ibrugose: legs ferruginous brown dcprcxsuin. EMBAPHION DEPRESSUM LeConte. Ehixlis (hprrsxfi LkContk. Alin. Lye. .Nat. Hist. N. Y.. V. 1>C1. p. I.V.. HmtKiiihinn ihitrrHsiiiii LkContk. Sunth. Miscell. rollections. No. 14n. ISGtJ, p. r,«t. — HouN. Trans. Aiuw. riiil. Sue. riiila.. MV. IsTO. p. :V22. TJalher robust, ovate, black, thin maririn of the body almost totally wanting; thorax and elytra slightly distant. AnteniKV moderately long and somewhat stout, basal joints moder- ately pubescent, last three joints slightly thickened. Prot/torcw about one-thiril wi«lei- than long, slightly narrowed be- hind: ilisr moderately convex, very coarsely punctate; (t/h.r rather fi'ebly emarginate: slths moderately rounded, with margin feebly re- flexed: A(/.vc with the middle slightly prominent: ba>al angles obtuse. Eft/fi'd broadly oval, acutely margined, the marginal line reaching the apex: banc emarginate: humeral angle> prominent; siiles strongly 454 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. I'ouiicled, gradually iiarr()\viii loii^' as uich'; ln^s^ siilj(niiic;U«', f('('l)ly siimalc liit»'rall\ ; himici-al aii^^lo hkh-c (»i- loss distiiK-t : nuitujin aciiti'. iu»t foliaccotis iior siuldi'iily foriiH'd. cvt'iih and ;ri'adiiall\" rcHcxcd and (ittniiiiiKj thr ti/x.r; sides fi'chly ai'ciiatc, ^I'adiiallv nar- rowing to apex and at tcnuatcly convin'fjiiijr, apex acntc and nut pin- (liu'od; (li^c nioro or los concavi'. suture frtHjui-nlly raised |)()>teiiorly : liere the disc is nioi'e or less hicoiicave. ^^radually. evenly arciiately declivous hehind. acutely indexed laterally, the indexed sides uKxlei"- ately ohlicpie and plane; snrfurc sculptured with line. iri'e<;ularl\'. sparsely, and evenly placed, suhasperate puncture>, the indexed sides similarly sculptured: each puncture hears a very minute decurved seta. Kpijihtini narrow, scarcely at all dilh'rentiated from the indexed sides of the elytra and similarly |)unctured: distinctly defineil at apex and feehly. minutely dilat«'d heneath the elytral a|)ices, ISti'riKi opa(|ue and iinely, irreolic in outline, circularly concave at middle liUe a watch-glass Ix'tween the bases of the lobes. Each lobe triangular and distinctly longei- than wide: external border evenly arcuate. apex subobtusely roumlecl, and the internal border straight or feel)ly sinuate; surface more or less convex, concave internally to sinus, basal thir«l smooth and alino-t impunctate. apical two-third-^ densely 456 BULLETIN 03, UNTTED STATES NATIONAL Ml^SEUM. Ijiiiictured and clotlu'd with (|iiite long seta-. Siims lrianiaf/nostic characteTH. — The elongate form, with elytra gradually and arcuately narrowing to apex give a characteristic facies. Separated from contusum by its narrower form, besides the body has a greater dorso-vcntral thickness, and the males arc not caudate. In planum the elytral margins do not reach the apex, in elongatum they do. From depressum by its elongate oval eh'tra, obsoletely defined epipleurge and by having the basal joints of the antennae less pubescent. General obser rations. — The mentum is rather small, middle lobe variable, sides converging anteriorly, straight or more or less arcuate, with apex rounded or subacute; surface very slightly convex antl more or less feebly foveate Laterally. The prosternum is arcuately prominent ventrally with the coxa>, feebly compressed and sometimes subvertically truncate })osteriorl3\ Mesosternum arcuately declivous and rather deeply concave. The abdominal intercoxal salient is small and quite quadrate, one- half of its widtli shorter than the post-coxal portion of the same seg- ment, the latter subequal in length to the second; thirtl segment a little shorter than the second ; the fourth is one-half the length of the second. The abdominal and metacoxal salients are quite equal in width. The metastern.um laterally between the cox» is short and equal in length to the width of a mesotibia at middle. The tibial grooves of the femora are well developed, more or less concave externally, becoming flat internally, glal)rous and impunc- tate; margins distinct, more or less acute and gradually converging to the femoral base. The protibia' are distinctly comjiressed, and carinate externally; carina quite entire, surface longitudinally grooved behind the same, groove asperately sculptured. Meso- and metatil)ia' subcylindi-ical in section, flattened or grooved externally, grt)oves oi)a(iue, glabi'ous ami more or less punctate. The tarsi are moderate in length and stoutness. HKVlSKtN (»r KLKdlHINl 151, A ISKKM,. 457 I'l'()t;ii>i iil)()iit (iiif liflli of llicir Iciiiidi -liliortt'r than the next two coni- l»in«'(l; joints two to four inclnsivc ahont ecpial in length and just :i little loiitjer than wide; the fifth about e<|nal to the preceding two conihined. The metatarsi are slioU'it'ly margined: sidts evenly rounded from l)a>e to apex, not noticeably widening at base; Imsc truncate and about equal to the apex proper, finely margined: apical angles moderately rounded, reaching to the eyes: basal angles rounded and slightly more promi- nent posteriorly than the base. I'roplciiro smooth and impunctate. Hhjtt'd oval, width ecpial to about two-thirds of the length, margins acute, slightly refiexed and not quite attaining the apex; hast- sub- truncate; hnmev'i proper obtuse an»l roinided. not anteriorly promi- nent; aides quite evenly but not strongly arcuate, apex dimply sub- acute; disc smooth, more or les.s transversely concave or feebly bi- concave, sometimes plane between the reflexed margins, frecpiently 458 BULLETIN f;:{, untted states national museum, sHMitlv and briell\' arciiutcl\' (Icclivuiis at base, and aiviiatelv de- clivous ]30steriorly as usual; 'infcxed sides not strongly oblique, quite plane at the middle, feebly concave beneath the humeri and distinctly so where it passes into the apex; surface smooth and obso- letely punctate, inflexed sides smooth and impunctate, Epipleurfp smooth, impunctate and obsoletely defined, except at apex; surface on the same plane as the inflexed sides of elytra. Sterna and parapleurw smooth and more or less obsoletely sculp- tured. Ahdomen obsoletely sculptured and smooth; third segment more or less oblique to the fourth and fifth segments whidi have a feeble transverse convexity. Leys moderate in length and tiiickness. Anterior femora mutic. tibial spurs quite similar and the tarsi are alike in the sexes, and simple. Male. — Elytral disc rather obliquely arcuately declivous pos- teriorly, apex acute and just noticeably j)roduced. Al)domen motler- ately convex and l)roadly iuqnvssed on first two segments. Protibiie briefly and moderately constricted at base. Female. — Elytral disc arcuately and more or less vertica'lh' decliv- ous behind, apex simply subacute, abdomen rather strongly convex. Protibiie gradually and feebly narrowed at base. Measiirenieiifx. — Male: Length, 17 nun.; width, S.-J nun. Feniales: Length, 15-17 nnn. ; width, 7.5-8.5 mm. Genital characters, Male. — Pxleagophore elongate subfusiform, six to eight times longer than Avide and more or less arched. Basale elongate and about five times longer than wide, sides more or less feebly ai'cuate. surface moderately convex. Apicale elongately triangular: doisal surface moderately convex, without median groove (in the few si)ecimens examined), inqjunctate ; sides broadly and feebly sinuate; apex subacute and rather slender; base bisinuate with a nunlian triangular lobe. Sternite as in eloiupitaiii. Female. — (lenital segment triangular in outline, rather elongate, surface quite plane and not setose. Valnila (Plate 5, fig. 14). — Dorsal plate ol)long-triangular ; surface very slightly concave, smooth, obsoletely and sparselv punctate; ex- ternal border more oi- less siiniate; internal border verv feebly arcu- ate; ajiical nun-gin short and more oi- less feebly rounded or truncate, directly continuous with the dorsal surface of the apex in the internal third, angle rounded, not setose. Apex chitinous, produced aiul arcuately everted, convex above and concave beneath, tip rounded, excavated externally at base for the appendage, the latter I'ather short mannnilliform. with a few moderately long setsp at tip. Basal prominences obsolete. RF.VISTOX OF KLKOniTNI- RF.AISDKI.I-. 459 Sii jx'l'lnr jiinh nihil im in hni in ;i 1 1 ;i I II I iiL' tlic liiitldlf (.f llif (|«ir-:il plate, liiicly :iii(l l(iii;iilii(liii:illy lil^nilo-^c Viiif roliitri'dl snrfnirs. ~\\(n\\ soiiicwhal (l«'|)r('»«'»l. -mruo' lines straight wlicii viewed loii^itiidinally. moderately convex tran>vets<»ly, smooth and shiniiifr: snhinai'^inal groove distinel Ix-nenili tlic not ex- planate external inar^nn of the dorsal plate. Internal inar^nn- (»f the valves eontifruons in basal four-liflhs. Fissnre very nariowly fn-i- forni in apical fifth, membrane not visible. Ilithitiif. — .Vri/ona (Winslow. Barber and Schwar/. : Jlolbrook. H. F. Wic'kham) ; New Mexie<) (Coolid/>h tini smooth. o|)a(|ue, and oh-oletely x-nlplnreil. Ehjtra ohh)ng-oval, widest at the niiy an acute mar<;in. that d(K>s not attain the aj)ex. arciiately declivous pos- teriorly in apical third: siirfdcc irrep:idarly and not densely subas- perately punctate, at times there is a distinct tendency to a serial arrauirement. the punctures are slifrhtly denser and a little more nniricate at the ])eripherv, the acute mar> "Jl.') mm; width, D-IO nun. Gentt. fig. 20). — Dorsal plate «)l>long-triangular. about four times longer than wide: surface feebly convex ba>ally and concave apically: external border more or less sinuous; internal l)or- der nearly straight and somewhat beaded; apical margin arcuate in 462 BULLETIN «3, UNITED STATES NATIONAL MUSEUM. cxtt'iiiiil two-thirds, becoiniiig continuous intorui^ly with the inner margin of the fossa. AjDex produced and not everted, sides sub- l^arallel, externally continuing the line of the dorsal plate, tip rather broadly rounded, dorsal surface concave; internally the valvular membrane is finely setose and semi-chitinous caudad to the pudendal membrane. Appendage short and nearly hemispherical, projecting very little beyond the fossa, setose at tip, setiinr|, ;,( times appiirent Iv siil)triiii('ate, sometimes feel)Iy impressed at a|)e.\ so as to appear some- what emar^iiiate: smi'are fecldy coiincx. Ietelv punctate at center, nairowjy im|)ressed peripherally within the mai- jrin. thei'e opacpie and distinctly punctate. Prostei'inun less suddenly prutuheiant \entrally than in jtliiinna^ otherwise the same. The mesosternum is ((uite xcrtical and arciiatcly declivous, nnu'e or less concaxc as usual. The metastenium laterally hetween tln' co.xa- is as lon^ as the width of a mesot ihia at a])ex. The metastermil and abdominal salients are (|uite e<|ual in width. The abdominal pioce.s-s is a litth' lonp'r than wide. The post-coxal portion of the first ahdominal se- veloped and narrow on ai)ical two-thirds, slightly glaijrotis. margins asperate, and the articular cavities are closed. The tarsi are the same as in planum. The protarsi are about two to three-fifths of their length shorter than a mesotaisus, joints two to four suluMpial in length and scarcely as long as wide; the first joint is a little longer than wide: the fifth is just the least longer than the three |)i-eceding joints taken togethei". The mesotarsi are about two-fifths of their length shorter tha!i a metatarsus. Joints two to four, inclusive, are subequal in length and slightly longei' than wi^\ Abdomen moderately convex, first thre<* se«;menl> rather broadly impi'essed alon«r the inichUe. I'rotibia) suddenly and briefly sinuate at Itase. Fcmdic. — More robust. .Vnteinia' reaehinliiie gradually nari'owini; at base. « Mt'UiiKrcnwnts.—Mtih'fi: Length. l+-li)..'') nun.: width. <» '•• mm. Fr- males: Length, 18.'J-17 mm, ; width. 7-8.5 nnu. Genital cluirarU'i's^ nmle. — Edeajjophore very slender, elon^Mte. mikI moderately arched. Bdsdic about five time.s longer than wide, rather sti-onirly convex from side to side, the latter feebly arcuate. Apicah' small, triangulai", slijzhtly elongate: sin'face rather >ti()ngly convex and without groove; sides ftn-bly and l)roadly siimate; apex gradually attenuated and acute: base with a rather short, subacute lobe at middle and feebly sinuate laterally. Steni'tte transversely triangul()-parai)olic in outline. Kach lobe triangular, with external border more or less arcuate to apex, the latter subacute and rather gradually narrowed: internal margin nearly straight and oblicpie; surface more strongly convex along the external border, thence sloping inward, rather densely punctate in apical two-thirds, setose, seta' long and rather dense, especially in apical third. Sinus more or less semicircular, membrane more or less setose across the same. Fouolc. — (ienital segment (Plate r>. fig. \)) triangular, surface quite plane, impunctate and not setose. Valrula. — Dorsal plate elongately subtriangular, moderately nar- rowed from base to apex; surface plane anil glabrous; external border more or less feebly sinuate; apical margin truncate at middle, internally continuous with surface of the apex, angle evenly rounded ; internal margin very feebly arcuate. Apex produced and chitinous, more or less everted, convex above and concave l)ei!eath, tip roundi'd. Fossa at base of the exteriud surface of a|)ex and l)eucatli ajjical niai- gin of dorsal plate. AppendtKjc >hort mammilliform, with a |H'ncil of four or five rather long seta^ at tip. Bdxdl proinhienci's moderately developt'd. Super'nH' pitdi'iKhil /ti(/iihniii( attaining the apical f'ouilh of the dorsal plate, and longitudinally rugulose. Vctttrohitrnil surfaces. — Body slightly protuberant . laterally in basal half. fet»bly cimcave laterally before the apices: surface lines straight. Submarginal gi'oove shallow Ix'neath the feebly expanded external l)order of the dorv in cadi instanci-, those of tlie profi'inoia are sIio;li(ly arcuate. Tlic |)r()til>ia' arc sli«rlitlv coni|)rcsscd and distinctly carinatc ex- ternally, carina more or less entire, snrface U'liind it latlicr narrowly and longitudinally jrroovt'd. ;;roo\(' more or less as|)erate. Tarsal "rrooves of the mesotihia' rather more or less evident ex- ternally in ajjical two-third>. n KnowUilpe ( Col«Hipt. Kans. autt east- ern X. Mex.). isr>0. p. 1.'.. pi. I. tiff. S.— Horn. Trans. Ainer. Phil. Soc. riiiia.. XIV. T^To. p. r,2^. \':\v. hniiiiiiitinn ("asi y. Ann. X. Y. Acad. Sci.. V. Xt)V. 1S<»0. p. 40.3. P^longate oblong, piceotis black, more or less opaque, sides of the prothorax rather broadly foliaceous. elytral margins less strongly so, margins distinctly attaining the apex. IIc(nf small, less than twice as wide as long, nearly plane, broadly and feebly impressed laterally, sides of the frons rather prominent: surface very finely, sparsely, and quite indistinctly punctate, each puncture bearing a .small, .short, and curved .seta. AtttriDin long and rather slender, very feebly com|)ressed in outer four joints, which are feebly widened: third joint a little shorter than the next two taken together: fourth slightly longer than the fifth: the latter, sixth, and seventh -.nbecpial: eighth slightly shorter and subtriangidar; ninth and tenth suborbiiidar : tdeventh ovate. 468 JIL'LLETIN (i;{, UNITED STATES NATIONAL MUSEUM. Fronotv7n proper about as wide as long, lateral margins thin and moderately foliaceons, more or less reflexed and concave; disc rather moderately convex, finely and rather s])arsely punctate, laterally more densely so, each puncture with a short curved seta ; apex rather deeply and somewhat semicircularly emarginate. the emargination about three times wider than deep, not noticeably margined; .sides evenly rounded, margin not widening at base; base quite truncate, and about equal to the apex, with a distinct marginal bead; apical angles obtuse, formed by the moderately advanced foliaceous mar- gins, and are about half as long as the head ; basal angles broadly rounded, slightly more prominent posteriorly than the middle of the base. Propleurm smooth and quite impunctate. Ehjtrd elongate oval, nearlj^ twice as long as wide, margins acute, slightly reflexed and ahraya aftaini/tf/ flie apex; hane quite truncate, much wider than the contiguous prothoracic base proper; humeral margins rather broadly rounded, not anteriorly prominent, humeri proper obtuse; sides feebly arcuate or subi)arallel in basal half, thence to apex quite evenly and broadly arcuate, apex more or less aciite and i)roduced ; disc quite plane or feebly concave, sometimes biconcave by elevation of suture in ])osterior half, more or less arcuately de- clivous posteriorly, acutely inflexed laterally, inflexed sides quite straight and oblique; surface sculptured with subasperate punctures which may be rather densely placed and more or less irregularly arranged, at times somewhat serially so, occasionally the punctures are not asperate and rather coarse; inflexed sides irregularly and more or less densely punctate. Epipleurcv narrow, not in the least dilated at base, very gradually narrowed to ajiex. smooth and impunctate; superior margin well defined in apical fourth, thence to base by a series of punctures, surface on the same plane as the inflexed sides of the elytra ; widening at apex to become the inferior surface of the more or less produced ai)ex. Stenni (]uite smooth and more oi' less imjiunctate. PiirapJeui'ic rather s])arsely and more or less indistinctly punctate. Abdomen smooth, very sparsely and more or less indistinctly punc- tidate, obsoletely rugulose; third segment scarcely oblique, others horizontal. Lecjs moderate in length, rather slender. Profemora mutic as usual, tibial spurs similar and i)r()tarsi simple in the sexes. Male. — Somewhat narrow. Antenna* reaching considerably beyond base of the prothorax. Elytral disc more or less gradually declivous behind, apex jiroduced into a short cauda. which may be angulate at the sides where the inflexed sides terminate; cauda more or less abruptly produced, rather oblique, and more or less asperate, with HKVISIOX l)F KLF.dDIINI — ni.AISDI.1 .1,. 400 tips M'|)iM;itt'(l. AImIoiiu'M modnalt'l y f<»ii\c.\ and iiiorr or 1«'>> iiii- pivsscd on lirst two M'^rniciit^. I'loiihiir -iiddcniy and briefly sinuate at base. Fiinah. — Hallici- l)i(>ad. Aiitcnna- rcacliin;: lu-yond the |)rotljo- racic base, biii sliortn- tban in the male. Klytral di>c ai'ciiately de- clivous posteriorly, not pi'oihiccd at a|)t'.\. but more oi" less acute. .Vbdoinen (|uite s(ron«rly convex. l*i()til>ia' mm.: widtli. 7."i-K mm. Frnuih'.s: Leiijjrtb, 14-11)..") mm.; width. T-IO mm. (rt'ititul I /nu'drfcrs. male. — Edea<^ophore slender, eloniralc obl(»n;r- ovate. Iias stron«rly and acutely lobed at middle, obli(|ue and broadly sinuate laterally. Stent itc subparabolic in outline. Each lobe subtrianofular, external IxH'der rpiite evenly arcuate to aj)ex, the latter subacute, prominent and slir subtruncate at middle two-fourths, angle rounded, in inner fourth continuous with the surface of apex: internal margin quite straight or more or less feebly arcuate, .Vpex chitinous, jiroduced, and everted, convex above and concave beneath, rounded at tip; fossa at base of the external apical surface, beneath apical margin of dorsal plate. Appeiuhuje mammilliform, glabrou-. with a pi'iK-il of few (|iiite long seta> at tip. lidsiil pi'oniitH nrc's feebly evident, lateral surfaces of valves slightly visible from above. Supe7'ior pudendal memhratie attaining the apical fcuu'th of the dorsal plate, finely :ind longitudinally rugidose. 470 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Ventrolateral sarfaceH. — Body with surface liws straight when viewed longitudinally, quite evenly convex from side to side, smooth and shining. Submarginal groove rather small luMieath the external border of dorsal i)late, which is feebly explanate in apical half, termi- nating at the apical margin. Internal margins of the valves con- tiguous in basal four-fifths; fissure quite short, nearly closed, mar- gins finely setose. Inferior membrane not visible. Habitat. — AVyoming (Cheyenne, June, Hubbard and Schwarz; April. II. Soltau); Colorado (Salida. Fort C\)llins. Clear Creek, South Park Region, San Luis Valley, II. F. Wickham) : New Mexico (Deming, July and August. Hubbard and Schwarz; Las Vegas, August, Barber and Schwarz; Coolidge. AVickham) ; Arizona (George Horn; Winslow, Hubbard and Schwarz; Santa Rita Mountains, July, Hubbard and Schwarz ; Tucson, Charles Fuchs) ; Kansas (F. H. Snow; George Horn). Number of specimens studied, 48. Type in the LeConte collection. Type -locality. — Fort Larauiie and Santa Fe. New ^lexico. Salient type-characters. — Opaque. Thorax with deeply emargi- nate apex, margin broadly explanate. moderately reflexed, apical angles subacute, ])asal angles l)roadly ()l)tuse. Elytra with the dorsum plane, acutely margined at apex, margin retlexed, strongly so, seri- ately, finely and rather densely muricato-punctate. Male with elytral apices briefly prolonged (LeConte). Diayuostic cliaracterfi. — In this species the thorax proper is broader, the prothoracic margins are moderately foliaceous and reflexed, the integuments are more or less opaque, finely and subasperately sculp- tured, the elytral margins attain the apex. The males are briefly caudate. P'lom tnurlcatum it differs by not having the basal angles of the jHothorax prolonged backward over the humeri. The elytral margin is thinner, narrower, and usually scarcely reflexed unless it be near the humeri. The sides of the pronotum are rounded from apex to base and not broader behind, the basal angles are broadly rounded and slightly more prominent posteriorly than the middle of the base. In contusnm the males have the inferior surface of the elytral cauda form by the dilated apices of the ej^ipleural surface. From glahram it is recognized by the dull luster and finely sub- asperate .sculpturing, also by the acute elytral margins attaining the ajDex. In the U. S. National Museum collection there are two males and two females which were collected in New Mexico. They aie the largest and most strongly developed specimens that I have seen. The elytral ai)ices are distinctly caudate, and tlie elytral disc quite evenly concave transverselv in the males and the suture is feeblv raised REVISION OF KM.ODIINI lU.AISDKLL. 471 posteriorly, iiidiciitiii^ iiii a|)|)r()acli to himimitKin Casey. The females have the clydal disc hioadly <)\al and qiiite Hat. 'ilie epi- pleiiru" are not at all deliiiei(erate. Th(> mesotibia' are more or less distinctly grooved externally in apical two-thirds; the surface of the groove is glabrous, with sparsely placed asperate jmnctures. The metatil)ia' are simply tlattene mm., width 10.") nun., and is distinctly a much larger form. The elevation of the elytral suture is observed in some examjjles of all of the species known to me. The sculptuiing^ is qnite variable and in the extremes of a series quite in contrast. Furthermore, the elytral pnnctnres referred to in the descrii)tion are merely impressed foveie, and accordinjr to the orijjinal remarks do not aj^pear to be in the least setigerous: " the liner, but strong and sparse, asperities are distributed over the sur- face without regard to the punctures, and each bears a strong, thick, semi-erect seta." After a careful examination of the scnljitnring under high power. I consider that the asperities lepresent the true punctures, whose margins have been produced into the uiinute eminences, each bearing a seta. The minute fovea' or ilents are not the true punctures. The sculj)- turing is quite similar in all of the sj^ecies before me.; even the minute fovea' are scattered here and there. The sculpturing of hinnmitinn is peculiar only in the apparent abundance of foveie. A comparative study of the elytral seta? shows that in (flahnnn the set»p are the most minute and the stoutest in coiifiisnni. th<' longest and most slender in /fhi/iinu. Not ha\ ing seen the types nor an authentically identified specimen, my views are. of course, founded uj)on the seiies at hand and the laws governing homology and anal(»gy. EMBAPHION MURICATUM Say. Akin 't miniiiilii Say. .IiHini. .\(:nl. N:it. Sii. I'liila.. Ill, 1MI4. p. 2.">1. Ktnhdiihinn iiniriraluin LkCo.ntk. Comiilete Writliijt.s of Thouius .*ii's An ana Nat.. I. is.">!t. iil. xii. t1^'. 10. — IIoRX, Trans. I'hil. Sw. riiiln.. XIV. 1S70, p. :{20. KmhuithidH cnnin nnn I^eContk. Troc. Ai-ail. Nat. S.-i I'liihi \I l^r.:; i.. 446. Oval to oblong-oval, brownish to i)iceous black, thoracic ami ciytrai maigins vciy broad and foliaccous. sti'ongly reflexed. 474 BULLETIN 63, UNITED STATES NATIONAL MUSEt^M. Ilrdd .siiiall, less than twice as wide as long, plan#, sides of the frons slightly prominent, punctate, punctures very feebly subasperate, fine, not dense, each with a small curved and short seta, frontal suture usually not visible, Antennw rather long, quite slender, outer four joints very slightly compressed and scarcely widened, third joint shorter than the next two taken together, fourth scarcely longer than the fifth, the latter and sixth subequal, seventh shorter, eighth feebly shorter than the seventh and slightly triangular, ninth and tenth sul)orbicular. eleventh subovate. Pronotiim with margins veiy broadly foliaceous, the margin more than one-half wider than the dw(\, the latter comparatively narrow, longer than wide at middle, very feebly convex, usually with irregular depressed areas; finely, more or less subasperately and sparsely punc- tate; reflexed margins wider posteriorly and more or less concave, n little more distinctly punctate, ])unctures less sparse, each with a short curved seta ; apex deeply and feebly subquadrately emarginate, the emargination about one-half wider than deep, sides almost jiarallel, and scarcely margined ; skies evenly but not strongly arcu- ate, moderately converging from base to apex ; base proper feebly arcuate, not margined and about equal to the length, laterally sinuate; apical angles rather narrowly rounded and formed by the advanced foliaceous nuirgins and nearly as long as the head; basal angles are posteriorly prominent, subacute, and projecting backward over the basal angles of the elytra. Propleurd' smooth and impunctate : inferior surface of the foli- aceous margins obsoletely punctate. Elytra oval to elongate oval ; margins broad and reflexed, angles at humeri nearly rectangular and more or less truncate at base, pos- teriorly extending beyond the aj)ex. the two meeting on a line with the suture above the true elytral apex, and defined from the same by a slight groove, borders evenly arcuate from base to apex or more or less parallel basally; base evenly but not strongly emarginate; humeri proper broadly rounded and not prominent; sides proper more or less evenly arcuate ; apex proper not produced and narrowly rounded; disc plane, feebly convex, at times slightly concave, the inflexed sides nearly straight and oblique, gradually and not strongly arcuately declivous behind; surface sculptured with approximate series of fine asperate punctures, wdiich become more irregular and slightly denser laterally. Each puncture bears a short and rather robust curved seta. Epipleura> narrow, not attaining the humeral margin and not dilated, but gradually narrowing to apex, not defined from the in- flexed sides of the elytra and on the same plane; superior margin obsolete, except near apex ; elsewhere represented b}' a line of punc- tures or a faint groove. REVISION OF F.LKOPMM — RLAISDKI.L. 475 Sterna nxuvv or lt'» dull, liiifly and not di>(iiiclly >cid|itiirt'(|. /V//*tf/yA'»//vr siiiootli. lather -|)iir>t'l\ hut not \ »mv di^tiiictlv piinctnti'. Alxloimii h(»i"i/ontal. vcrv lincly aiio- lotcly ni«!:nloM' and (jiiitc cvt'iily coiincx. Lr similar in ihc sexes, the anterior -iiirhtiy lonL'ei- than the ])c)steri()i-. Protarsi simple. Mule. — Ah(h)iiKMi inoderutely convex and not noticeahly impressed: anterior tihiie (piite suddenly and hriefly constricted at ha>«'. Female. — Ahdomen rather strongly convex and the protihia* irrad- ually narrowed at hase. MeaniireiiK'tifs. — Males: Len-18 mm.; width. !•. ."»-!() mm. Fenutle,s: Length, l.VlN nnn. ; width. U-IO.;") mm. Genital eharaeters, male. — Edeagophore elonjjate ol)lonF',OI)IINI BLAISDELL. 477 Till' (il»i:il <,Mt)<>\('s (tf the I'ciiioiii Jirc entire iiiid well (U'liiicd. ;jlii- broiis, conciive on tlu* proiciiiora, less so on (he iiicso- aiid iin'tii- feniorii ; (lie iuar«riiis arc aciMc and sniootli, gradually coiisciL'iiiL'' 1<> the fcMuoral base, where thev meet. Tlie [)rotihia' are scarcely at all compressed nor carinate exter- nally, simply flattened oi- t'eehly concave in apical hall", foiinin*^ a sli<;ht tarsal groove, which is moderately asperate. • The meso- and metatihiie are M'ry t'eehly flattene to length. In some e.\- ampK's the pr(ttii)ia' an* scarcely more than one-half the length of the nietatibia': while in otheis they aic at least three-Hfths as long. This seems to be an individual \ariation observed more or less throughout the tribe Kleodiini. The protarsi are about ouo-fourlh of their lengtli shortei- than a mesotarsus. Tlie four basal joints are small, the second, third, and fourth sul)e(|ual in si/e and length and al)ont as wide as long: the first is about one-half longer than wide; the fifth about eijual to the three i)receding joints taken together. The niesotarsi are about one-fifth of their length shorter than a metatarsus. Joints two, thioe. and four are subequal in length and slightly longer than widi': the first is distinctly more than one and a half times longer than wide: the fifth about ef|ual in length to the preceding three combined. The metatarsi are about half as long as a nietatibia. The first joint is about eipial to the fourth; the second and third are subequal. the second api)arently just a little longer than the third, and both taken together about equal to the fourth. Genus ELEODIMORPH A, new. Hody rathei- i-obust and lila[)yliform. Head not tleeply in>erted. epistoma di>tinctly emarginate, sides of the front straight and conv(>rging anteriorly and not in the least dilated, frontal suture scarcely e\ident : eyes narrow, transverse, and subreniform: antenna' 11- jointed, outer three joints feebly com- picssetl. Mentum moderate, tiilobed. lateral lobes rather small and inllexetl. middle lobe trapezoidal, narrowing at l)ase as usual and attached to a -hort gular j)eduncle. surface concave. Mit.rilliirif j)iil j)i moderate in length, last joint ti'iangular and mod- erately l)road : third subtriangularly obconical. a little longer than wide and about two-thirds as long as the second, the latter elongate and obconical. Ldhidl palpi small, last joint more pyriform than triangular, con- stricted at base on internal and lateral surfaces. 478 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Buccal processes of the gense strongly and subacutely produced anteriorly over the base of the maxilla'. Manaibles emarginate at tii^, cusps ai^parently equal. Prothorax moderately transverse and margined; pronotal apex deeply and broadly emarginate (Plate 12. fig. 39), base truncate; pro- sternum longitudinally impressed before the coxa\ prominent in the median line and continuously so with the intercoxal portion, which is mucronate posteriorly: anterior margin of the prosternum arcuate at middle and broadly sinuate laterally. Elytrn with the disc not strongly deflexed laterally, distinctly margined 1)V the superior border of the wide epipleura^ which occupy the whole of the inflexed side, the superior epipleural margin visible from above throughout its entire length. Mcsostcnniin, and mctasternum short and not prominent ventrally. Anteriorly the mesosternum is concave, posteriorly meeting the meta- sternal intercoxal salient at middle of the coxa?, suture slightly arcu- ate, ^letasternal epimera very distinct. Intercoxal process of the lirst abdominal segment rectangular and broad, as usual. Legs rather short, femora moderately compressed and widest near the middle; tibiiip slightly liut distinctly dilated apically, feebly but charactcM'istically arcuate, spurs small and normal; tarsi moderate in length aud thickness, joints proportioned as in the other members of the tribe, spinous beneath Avith the plantar grooves distinct. The tribal cliaracters are distinct and the species has a very Blapi/lis-Yike form and the general structure is the same. The types were for years associated with Eleodes parricollls, scahrosd. and cordata in my collection. The produced buccal processes of the gena^ are as marked as in Xi/cto polls. Eleodes hlanchanli presents the same condition, but to a much less degree. The maxillary galea is evidently quite different from that observed in Eleodes and apparently two-jointed. I could not determine posi- tively without dissection. Salient generic chamcters. — Epistoma emarginate, sides of front not dilated, buccal processes of the gena> i)r()duced (Plate S. fig. *24<'), mentum concave; impressed sides and prominent middle of the pro- sternum, the latter with the anterior margin arcuate at middle and sinuate laterally (Plate 8, fig. 24'') ; wide epipleura'. elytral disc not inflexed at the sides: femora compressed and widest at middle, tibia' arcuate and evidently dilated apically. These characters define a very distinct genus, very unlike anything else found in the T'nited States. From its southern habitat T suspect that it may be related to some Mexican form and have carefully searched all the literature to de- termine that fact, but without avail. At present I have no way of HKXISION nl- i;i,l-.(i|)ll M lil.A l>|)KI .1 .. 479 verifying (he results of my pifv ioiis scin'cli niid consider it a new and very i('iiiailval)l(' addition to our fauna. Type of the (/cinis. — hhodiiiinrplid holctm. ELEODIMORPHA BOLCAN, new species. Fi'('l)ly ovatt'. sonicwliat rohust ; a little more than twice as lon: black, somewhat o|)a(|ue; feebly setijrcfous i)eneatli; doi'sally (lie veiy minute seta' scai'cely |)roject out of the |)uucturcs. 11(11(1 somewhat wide, almost plane, punctate, piinctui'es coaise. confhient on the epistoma and laterally. iire{.:;u]ai- and spai-sccentralh . scattered on the \-erte.\ : sides of the frons scarcely |)rominent and feehly impressed within; frontal suture sli<;htly evident latei-allv. A lite, (11(1 moderate in lenirth and stoutness, outer thi'ee joints feehlv compres-^ed and sliLrhtly dilated, thii'd joint not five times as lon. about equal to the length, marginal bead not very coarse; iddes evenly and broadly arcnate, moderately sinuate in basal lifth. very briefly and feebly so just behind tlu' apical angles, marginal bead fine; Ixtsc truncate, rather coarsely beaded, and al)out one-fifth wider than tlu> ajiex; ajiical angl(>s antei'ioi'ly prominent and snbacnte; basal angles rectangidai-. Prop! ex Id sparsely and >ul)muricately punctate, and more or le>s rugiilose. moderately coincx. not in the least concave beneath the pro- notal margins. excei)t at the apical angles. AV////y/ oblong oval, widest at the middle, a little more than one half longer than wide; hase truncate, scarcely to a little wider than the contiguous ])rothoracic base; humeri not in the least |)rominent. obtuse, angle almost distinct; xides evenly, moderately, and broadly arcuate; apex ()i)tuse; disc evenly convex from side to side, le.s.s strongly so toward the base, more stiongly so toward ap»'x, where it is arcuately declivous, not iidlexed laterally; siirf(i(e evenly and not very densely nuiricately punctate. j)nnctnres evenly arranged in evi- dent series, each i)uncture (li>tinctly ilefined from the others; the strial are smaller and less muricate. (he interstitial are larger and more evident as small shining muricate tubercles, both series less strongly 480 HULLETTX 63, UNITED STATES NATIONAL MUSEUM. developed centrally, at the periphery both stronger and subequal in size, becoming irregular about the apical declivit^T Epiplcura' quite broad, occupying the whole of the inflexed sides of the elytra; surface smooth and opaque, sparsely and finely sub- asperately punctate; scarcely narrowing in basal two-thirds, thence gradually to apex; superior margin visible from above throughout its entire length, forming a distinct and subacute bead for the elytra. Ste'riKi. — Prosternum impressed before the coxuo, prominent at mid, fig. 11) obtusely oblong-ovate in form, well chitinized. moderately elongate. Basale oblong, about two and a half times longer than wide, rather eveidy convex, slightly depressed along the middle, with a faint indi- cation of a median longitudinal linear impression. Apicah rathei' broadly subjiyriform : apical third strongly and quite suddenly dellexed. becoming iunnediately horizontal and lami- nate, broadly rounded at a^^ex; dol'sal surface glabrous with basal lUlVISlO.N (»!•• i;i.i;nl)llNI MI,AISlti;i,L. 481 (\V()-lliii'(U ^(tiiicw hill (Icpiosctl. l.ilcriilly limit' nrciiali' iiiid «l«'cliv III cciiliM'; sides arciialt' at l)asal third, thctice siiniatc to apical ihiid. w hi-rc it is arciiatf and coiitiiiiioiisly so with the hroadiv roimd«'d apex; hdsc IV'chly h)lM'd at iiiiddli', broadly and feobly siniiatf lalcially. Clai'd (IMatc 7, li<:. S) coinijarativt'ly broad. Ilattcnctl, and of nearly tHpial width thi<)ii(eiil in posterior two-thirds, pubescence denser in the apical area, hairs yellowish; external bor- der strai, fig. \2) triangular, about as long as -wide at base, superior surface quite j)lane. chitini/ed through- out, apically very finely i)ubescent. Valvula. — Dorsal i)late not dehned from (he apex; surface gla- brous, plane, very sparsely and linely jjubescent apically; external b«>rder rather straight, i-ounded at the angle and directly continuous with the feebly and broadly sinuate superior margin of the fossa; internal border broadly sinuate in apical half, thence feebly arcuate to the base. Apex short, rounded at tip, chitinons, fossa on its external surface, finely pubescent, hairs short but noticeable. A/f/x ii(/(i(/c mammilliform, short, penicillati-. hairs (luite long. Superior pudemhil inrmhrdnr long, reaching (<> the base of the apex, very minutely longitudinally nigulose. \\:\>a\ prominences noticeable. V< iitrohtterdl ftnrfaces quite evenly convex in basal two-thirds, glabrous, here and there a minute hair, very feebly impressed before the apex. Sulmiarginal groove distinct beneath the feebly explanate external border of the dor>al plate, subobsolete in basal fourth. Apex feebly convex beneath. .Vjqiondage and fossa distinctly visible from below. Internal margins of the valves contiguous, genital fis- sure ajjical. small, and fusiform. Ihihitiit. — Holcan Mountain, between Warner's Ranch and diilian, San Diego County. California. Taken from beneath a log. Number of specimens studied, '1 (male and female). r.'.tTsu— Hull. c.;{— 00 31 482 BULLETIN fi'J, UNITED STATES NATfONAL MUSEUM. Sexitypes in my own collection. Type-locality. — Bolcan Mountain. /Salient type-characters. — Body blapyliforni, surface dull, buccal processes of the gena^ produced; prothorax deeply eniarginate at apex, angles anteriorly prominent and subacute, base truncate; pro- sternum impressed before the coxa^, prominent at middle and pubes- cent. Elytra truncate and more or less coarsely margined at base, adapted to the prothorax; sculpturing of evident series of small shining muricate tubercles; epipleurie ^vide, forming the inflexed sides of the elytra. Legs short, femora comiiressed, tibiae arcuate, tarsi simple. Diagno.^tic eharacters. — Distinct as defined by the salient type characters, and can not be confused \\\i\\ any other species in our fauna. (rcneral oht^crratiom. — The mentum is trapezoidal, coarsely punctate and setigerous, surface concave. Prosternum between the coxae feebly grooved, not prominent ventrally and with the anterior median prominence forming a con- tinuous and feeble arcuation from the apical margin to the tip of the conical mucro. Mesosternum deeply concave to receive the prosteriial nuicro, sides prominent around the acetabvda, pubescent. The intercoxal process of the first abdominal segment is rectangu- lar, slightly transverse, equal in length to the post-coxal portion, its width scarcely equal to the combined lengths of the third and fourth segments. In the male the post-coxal part of the first segment is about equal in length to that of the third, the secal half and tlicMci' (<) apex soMicwIial cDinitic^xMl and di^lincdv l>nt not slroMirly dilated. Tlir |)r()lil)ia> aic the nii)>( com pressed and scai'cely earinale exter- nally, the tarsal «;n)<)M's are evident l»iit IVeMe and the p(»steri<»r border of each nioj'<' prominent tlian the {interior. The tarsal Gst developed, their inarpfins are equal. The external sni"fa<-e of the m(>tat ihia' are (latlened and moi-e f>r le.ss g^rooved. The articular cavities of the j)n)til)ia' are nearly open, on the other tibia' they are shut off from the i and also of tiieii- joints are ly simnite, ajucal angles stout and anteriorly prominent. I)asal angles small and more or less prominent ami acute, disc more or les.s foveatc in the 484 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. median line; scutelluni vcrv fccbh- entering belwveen the elytra, the latter not margined at base nor adapted to the prothoracic base, suture and four c-ostje each side acutely elevated; epipleune narrow, entirely overlapped by the metasternal side pieces and first three abdominal segments, exposed and horizontal opposite the last two segments; j)rosternum quite strongly i)rotuberant ventrally before the coxa' and produced behind: mesosternum deeply concave: metaster- num mikI first two abdominal segments at middle, broadly and shal- lowly concave: intercoxal process of first alxlominal segment broader than long: profemora more or less armed with a tooth at outer fourth: anterior tibiae more or less compressed and arcuate. The above diagnosis differs in several important points from that given by LeConte or Horn, The laterally dilated epistoma Avith sides arcuate is in contrast to the condition in the other genera of the present tribe, where the sides of the epistoma are sinuate or straight and convergent ante- riorly. The epistoma in the present genus appears longer on account of the dilatation and less broadly sinuate anterior margin. In most of the specimens before me the labnim is not visible, but in others it is entirely uncovered as in Elcodefi. and in all probability it is capal)le of greater retraction than in the other genera of the tribe, where it is retractile to a less degree. The nuindibles are not visible from above — except slightly in the sinuation of the labrum — as in EJcodcs. Kmhuplilon^ and Eleodl- rrwrpha^ and this is no doubt due in part to the fact that the mouth parts are not so strongly developed or prognathic as in the above genera. In the Scaurini {Cerenopiis and Argoporis) the labrum is entirely invisible fi'om above and apparently deeply concealed beneath the produced epistoma, at least I have never seen it protruded. The scutellum does not enter between the elytra to any extent in rostnfns, but more so in tuhercuhttux. The epipleura' while narrow, are nearly entirely indexed abo\e and overlapped by tlie metasternal side pieces and first three abdominal segments. l)ut they are visible beneath the humeri opposite the meso- sterum, horizontal and exposed near the apex opposite the last two abdominal segments. I have not observed such an extreme condi- tion elsewhere in the Eleodiini. although it is more or less indicated in sporadic instances. All specimens that I have examined are identical in this respect. The habitus of the insect might be considered somewhat discordant in the present trii)e. but no more so than in the cases of EUodes granosa and veterator in that genus. REVISION OF KLKODIINI BLAISDKLL. 485 I do not coiisidci- it in liiiniioiiy witli Jhc Sciuiiiiii ;i-> y mend)raiif. Female. — (Jenital se<;^ment moderately dej)ressed. siihe(|nilaterally trianapical and feehly penicillate. Superior jMidendal membrane moderately exposed and reachin«r at least to the apical third of the doi-sal plate. Ventrolaterally the suhmar«rinal «rn)ove is very feebly delined. the surface lines are straijrht lon<;itudinally. Internal margins of the valves contiguous in basjil half, fissure narrow in apical half: infeiior membrane not visible. It can be seen by comparing figs. 4, 7, 8, 18, and U of Plate (\ with those of the different species of lileodes. and then with figs. 5 and of the same plate, that Trogloderux is more Eleodiinine than Scaurinine. Kulnhis agrees with Ce>'enop>t.s in having the two lobes of the sternite coalescent into one piece, emarginate at apex, and this is distinctly in accord with what appears as true Scaurinine charac- tei-s. This investigation is in its infancy and not mature for dis- cussion at the present time. For the present, at least, T agree with Dr. (Jeoige Horn in re- taining Ti'Of/hxh rtts in the Eleodiini. Future studies might indicate the advisability of separating it, possibly with /'Sleodiniorp/ia, as a distinct trilw\ and it will indeed be interesting to discover some other closely related species that might indicate its genealogical history. General characters. — The profemora are stout and subilavate, oval in transverse section; the tibial grooves are shallow and feebly defined by asperati' margins, best defined in the n)ales, i)ut in either sex more or less evanescent tow:ir base, narrower in co.status, esix'cially in the males. The nu'so- and meta femora are comparatively slendei-. slightly and very gradually increasing in width from base to apex, but almost parallel, (juite straight, except for the normal curve by which they an' adapted to the sides of the body, oval in transvers«> s4»ction: tibial • Annals N. Y. Acad. ScL, V, Nov., 1890. p. 391. 486 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. grooves more or less evanescent in basal hal^ and feebly defined apically. very shallow but rather smooth. Protibia' distinctly compressed, especially along the inner side; external border arcuate in basal half, thence straight and with a tarsal groove, that evenly and gradually widens to the articular cavit}' with which it is continuous; the anterior margin of the groove is rather smooth, the posterior more or less denticulate; the anterior and posterior sides of the articular cavities are feebly dilated. Le- Conte says that the apical angle is produced, but I do not see that it is in the least so. In the male of costatus the protibiae are briefly and very abru]:)tly constricted at base so that a right angle is formed : the tibia^ thence to apex quite even in width, as a whole slightly arcuate, each internal edge very broadly and feebly sinuate. The meso- and metatibiae are slender, straight, gradually and feebly increasing in size to apex, where they are somewhat dilated, circular in transverse section, and more or less grooved or flattened externally for the tarsi ; articular cavities closed. The protuberant prosternum is very obvious in costatus^ less so in tuherculatus, in each it is deeply grooved around the anterior border of the acetabula ; in tuherculatus the anterior margin is distinctly deflexed. Distribution. — Confined as far as known to the arid regions of eastern California and western Nevada, northward into Idaho. The two known species may be separated as follows : Pronotuni cribrately punctate cost at us. Pronotimi tuborculate tubtniildtus. The synopsis of genital characters ma}' be formulated as follows: Superior pudendal membrane long, reaching to the apical fouitli of the dorsal plate costatus. Superior pudendal menibriine shorter, reachiiii; to apical third ti(b( rcithttus. TROGLODERUS COSTATUS LeConte. Troffhxirnifi costatus. Lf.Contk, N. Auier. Kiitonioloiiist. I. No. 1, .July. LST!». p. :i, pi. 1, fit:. 3. Elongate, oblong-oval, opaque, dirty black, integuments dense; thorax cribrately punctate: elytral costa^ acutely elevated. Head less than twice as wide as long, feebly convex, more or less irregularly impressed, frontal suture not evident, but indicated by the abrupt termination of the frontal impression, at times slightly elevated; coarsely and conihicntly cribrate, tlio jiunctures at times more or less corroded. Antenmti short, scarcely reaching beyond the middle of the pro- thorax, somewhat clavate, feebly compressed, second joint nearly one- half as long as the third and not quite as long as wide, third joint about eciual to the next two taken together, fourth the knist longer lU.VISloN ol' KIJ'.ODIIM — HLAISDKI.L. 487 than the liflli. llic latti'i'. sixth and ~f\ciitli -ii1k'(|ii:iI and each altoiit as loii^ as \vi(h'. ('i<;hth, ninth, and tenth transverse and ^'ladnally ineivasin^ in wi"«><>ve. or fre(|uently entirely absent; a/ud' deejjly and broadly emar«;inate. iieatled laterally, obsoletely so at middle three-lifths; .sii/< s moderately stronfore the apex, point of union not tuberculate nor prominent; each in- terval broad and apparently biseriately sul>foveolat«'. the foveohe more or le.ss indistinctly nuirked, niore oi- less feebly transveisely coalescent, irregidar in the outer two intervals, the minute subsquami- form seta^ scattered indojMMidently of the pits. h'/>i/d(in(i narrt)w. overlapi)ed at middle by the metasternal pieces and first abdominal segment, horizontal in apical two-thirds; surface smooth, ol)soletely punctate. StiriKi sparsely, coarsely, ami more or less moderately punctate; mesosternum deeply and broadly concave, sides prominent; metaster- nuu» more or less feebly and br«>adly concave. J 'lira pit' Ufa coarsely and more or less obsoletely punctate. 488 BULLETIA' (13, UNITED STATES NATIONAL MUSEUM. Ahdonieii horizontal, inoderatelv convex, coarsely and more or less obsolotely punctate; intercoxal process and first two segments at middle third, disthictly and broadly concave, the concavity extendin*; more oi' less upon the third segment, where it is rather semilunar in outline, the concavity is limited laterally by a cimvex ridge, well marked on first segment and there continuing the internal line of the acetabula, less evident on the second segment. Lc(js i-ather short and scabrous: femora punctate, tibia? muricate; anterior tibia' more or less curved and slightl}' compressed; tibial spurs similar in the sexes. Tarsi rather short; first joint of the ante- rior with a distinct ])rocess beneath, plantar groove not well defined; apical margin of each joint somewhat prominent beneath; spinules flavate, short and stout. }f(i]e. — Somewhat narrow. Elytra arcuately and slightly obliquely declivous behind, abdomen strongly concave. Profemora with a small and broad tooth at outer fourth. Protibia^ distinctly and briefly constricted at base, distinctly angulate at point of constriction. First joint of the protarsi with a distinct and more or less rounded process beneath, which is about a third longer than wide, truncate at tip, where it is very inconspicuously spinulose. Female. — Slightly broadened. Elytra arcuately and rather verti- cally declivous, thence feebly and broadly sinuate before the moder- ately oblique ai)ex. Abdomen less strongly concave. Profemora obsoletely dentate, tooth sometimes minute. Protibiw feebly and briefly but not suddenly constricted at base. First joint of the jiro- tarsi with a distinct process beneath wliich is about a fifth longer than wide. Measurements. — Males: Length, 11-12 mm.; width. 4-4.5 mm. Femmle: Length, 12.8 mm.; width, 5 mm. Genital chamcters^ male. — Edeagophore (Plate G, fig. 7) oblong- ovate, acutely pointed, not arched. liasalc oblong-oval, twice as long as wide, evenly convex; sides feebly arcuate. Apieale triangular, slightly elongate; disc evenly convex, without a groove; sides feebly arcuate at basal third, thence slightly and broadly sinuate at tip, the latter acute; base arcuately lobed at middle, laterally feebly sinuate. /Stei'/iife transversely trapezoidal. Each lobe triangular and rather long; sides rather gradually and mutually converging to apex, the latter subacute although narrowly rounded; surface more or less evenly convex, glabrous at base and imj)unctate, apical two-thirds more or less densely punctate and setose. seta> quite long, den.ser and longer about apical margin. Sinus broad, membrane not setose. Female. — Genital segment (Plate (>. fig. K5) subecpiilaterally trian- gular, valves reflexed and fully chitinized. moderately depressed. ItF.VISION (tl' KI.I.ODIINI MI.AISKI-.I.L. 489 VaJruht. — I):il |»l;i(c t ii.iM^iilo »»l)l(»ii^f and iiol at all (Iclilictl from the apex, external iiiar;;in Miotlcrafely ronvcrj^t'iit a|ti<-ally; siirfaiH' UMU'c of le^s concave and w illi scattered pnnctnres exlei-naily and apicallv, each piinctnre with a moderately short seta: external mar«jin straiijfht to feehly and hroadly sinuate, contiinious with tin* sni>acnte mai'irin of the a|)ex, the lattei- slightly emaro\e very feehly defined for a short distance ce|)hala(l to the aj)pen(la«re: a|x'x with few scattered sette. Internal mai'ijins of the valves conti<;iioiis in hasal moiety, fissure nairow in apical half, nienihrane not visible. IJdhitat. — Western Nevada and the contii2:uous eastern California; Idaho (IJock Creek). Nnmher of specimens stndied, '^. Type in the I.K<\)nte collection. Typc-hndl'ttji. — Kock Creek. Dwyhee County, Idaho. Salient type-iii\;il, ;il»()iil :i lliiid l(iii;j:('r lliitii wide, widest at tlic ini(l, fig. 14) triangular, a little longer than wide, fully chitinized. valves slightly rellexed. Val plate elongate, oblong-triangular; surface gla- brous and slightly longitudinally con<-ave. very spaisely pimctate and setose apically, seta' short; external i)order more or less feebly sinu- ate, somewhat prominent toward baM': internal margin straight. .Vpex not defined from the dor>al j)late. i>riefly sinuate externally, forming a fossa, tip rounded, but not broadly so; internally finely setose on the valvular membrane. 492 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Appendage small, flattened, and semi-ellipticaL with two or three short seta* at tip. Siipenor pudendal membrane attaining tlie apical third of the dorsal plate and not rugulose. BaH(d promhienees not evident. Ventrolateral surfaces with surface lines straight when viewed longitudinally, moderately convex transversely; surface glabrous, sparsely j^unctate apically and feebly concave laterally before the apices, the latter concave beneath. Submarginal groove scarcely evi- dent. Internal margins of the valves contiguous in basal two-thirds, lissure snbapical. with margins feebly setose. Membrane not visible. Habitat . — California (Los Angeles County). Number of specimens studied, 1. Monotyjx' a female (Cat. Xo. 12!2H()) in the U, S. National Museum. T iipi -hxal'it]!. — Los Angeles County, California; collector, D. W. Coquillett. Dnujaoxtic charaeters. — The tuberculate pronotum. which is some- what dilated at the sides, subserrulate costa' of the elytra, outer three costa? meeting in a tubercle upon the apex, sufficiently char- acterize this species as distinct. The female genital characters, if constant in a series, will also prove of value, as tlie superior pudendal membrane is much shorter and not longitudinally rugulose in tubercidatiis. (ieneral oJjxcrrations. — The mentum is moderate in size and sub- parabolic in outline, obsoletely foveate laterally, and not noticeably scabrous. The anterior margin of the prosternum is quite strongly deflexed, the surface is gradually and not strongly arcuate between the coxap, giooved only between the same and mucronate behind. The surface js transversely flattened in front of the coxa^ at middle and very decidedly in contrast to the protuberant condition observed in costatns. The mesosternum is rather narrowly and deeply concave and moderately j)rominent laterally. The metasternum laterally between the coxa? is about as long as the width of a mesotii)ia at middle. The abdominal intercoxal process is subquadrate and about as wide as the metasternal salient, and as long as the j)ost-coxal part of the first ventral segment, quite equal to the length of the second. which is subefpial to the third and fourth segments taken together; the fourth is al)out one-half as long as the third. The tarsi are rather short and somewhat stout, at least stouter than in the female of rostsi>. M(>l!i. Metntibia. Male.— F.Mual*?.— li H 1* 3* REVISION oi-' i;m;<)I)Iim — hlaisdkll. 493 SPKCIKS sov Ki;(itat ad IIiiiimmi Cila. /•;. iiiiiiilricollis alliiiis. at clytiiK pmictis iiiajnril»iis iiia;,'is discn-ti.s di.stiiictius seriatis din«'rl. Mas, sultryiindricns, rlytris dorwi convoxiK, |M»8tlce aitteiiuatiH. Feniina, olytris iatioriltns. dorso minus coiivcxis. |H>stlc(> vix attciiiiutis. The ty|)o is from Sonora, which is the siinie as thai of Arizona. Mr. Hhiiuliard \vri(«'^ iiic that the two males in (he Li'Contc coHcc- tion arc more liUo rdihoiniriii than ijiuulrHoHis, (ho side mar<>:ins of the elytra l)ein<^ stron«;er and the punctures at the sides more substriato. Coh)nel Casey, who has no doubt seen the types, writes:* VicJoti is distinct from (iiKtdricullis in IjavlnR much (iiior pnnctnros, which are sjiarscr and mndi less as|H'rato towards the sides, and also in s«>vei-al other characters, anioni; wiiicli may Im« mentioned tii«> form of the protimrax, widest at anterior tliird in iiioKUicnllis and just hi'fore the middle in ricinii.t, the much longer posterior tarsi in the male of riciiiKs. J i>ely to (wo males in my own col- lection from Arizona and without definite locality. Lineil was considered a careful student and his label bears some weiirht. His specimen is Colonel Ca.sey's (U'script ion : Unthor slender, convex and snhcylindrical, lilncU throuehout and stronply shiniim. ^'lahrous. Ilriiil rathiM- sparsely punctate. UHMh-rately cojirst'ly so towanl ajK'x; an- tonnjp robust, nearly as lon>> as the head and prothorax, the third Joint four "Ann. New York Acad. Scl., V, Nov. 1890, p. 305. 494 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. tiiiit'S as loll}; iis wi(U' mikI fully as loii}; as tlu' next t\^( t()};i'tli('r. last three joints distinctly dilated, forming a clul), tlie niutli and tentli stronjjly trans- verse. I'rollifnd.r (inadrate, very nearly as hma as wide; (/(.«■ just visibly wider at apical third than at base, evenly convex, externally, minutely, and sparsely punctate; apex transverse, broadly and feebly l)isinuate. ecpial in width to the base; .sides parallel, very feebly arcuate; b«.s-c' broadly and rather strongly arcuate; apical angles right, narrowly rounded; basal angles broadly obtuse and not prominent nor at all rounded. Ijltjint two and three-fourths times as long as the protliorax, and in tlie middle nearly one-half wider, about twice as long as wide; huxe In-oadly emar- ginate; humeri right, not noticeably exposed; n'hU'h broadly arcuate: a|iex acutely rounded; (//.s-c obliquely declivous behind, having feebly nnirked. distant, comi)letely unimpressed series of extremely minute punctures; intervals mi- nutely, sparsely, and more or less confusedly punctate, the punctures not distinctly larger or denser laterally. Femora all slender and completely unarmed: si)urs of the anterior tibi;e very unecjual, the anterior slender, acutely ]iointed. and moderate in size; posterior tarsi sliglitly compressed, nearly three-fourths jis long as the tibite. Prosternum slightly prolonged but not at all retiexed, the apex vertical. Len^rth, 18 mm.; width, G.7 mm. H(i h it (I t . — .\ r i 7X) n a . Casey's specimen was a unique and he compares it with longlcollis. He writes that it differs from that sjjecies in its flatter, rather shorter prothora.x, Avhich is less rounded on the sides, and in its shorter, broader elytra, broadly and rather strongly eniar<;inate at tlie base and havin<2: widely distant rows of punctures, and in havino- a shorter, stouter, and much more clavate antenna'. It is possible that the species described by me as dissimilis may be nitidus. Dissimilis is very variable. (See p. 398.) ELEODES REFLEXICOLLIS Mannerhieim. I have failed to satisfactorily place this species of ]\Iannerheim's, the ty})e of which was taken at Koss, California. This locality is undoubtedly Fort Ross, near the mouth of the Russian River on the coast. Maiuierheini says that it is close to Eleodcs j)l(utata Esclischoltz, and that the sides of the thorax are unusually reflexed, and the base abrujitly narrowed. Peculiar and abei-rant forms are occasionally met with. (See .sc(d)rkula for remarks upon a iuii(|uc specimen taken in Xapa County, California, and in the collection of A. Koebele.) EARLY STAGER OF THE ELEODIINI. Comparatively little has been written upon the early sta |»;i|»cr. 'I'hc »»iily art iclc.-^ acri-ssildc air tlioM- cjI" Carl F, (risslci- ". Suiiu' of (lie ti^iirt's jut so xcry |)(m)|- in these papers before me that (licy iir«' of little use. Mr. (Ji^^l(■^ write- that in studying' tin' larval >tatc> (»f the Tt'iic- briouidu' we find that there is scarcely a coleopterous family whose Miemhers are hoiiiolo<;ically so closely allied and correlatixcly alike, and are all referai)le to three typical larval forms: 1. 'I'hose havin*; homo<;eneoMs corneous segments, cylindrical in lonj^'itudinal series, the sti<::mata situated in the pleurites. K.\ami)le, that of Tenebno. "1. Form more c()ni2)act, with only the j)rothoracic selit<>th( ms. 3. CMypeus not entirely separated, mandibles mori' sironjriy dentate, terminal joint of labial palpi larj^e and truncate, pygidium without art ic id a ted spines. The lai-\a' of the Eleodiini belong to the lirst form. They are elon- •Xately cylindrical, resembling those of the Elateridje, which are coni- moidy called wire worms. The former diti'er in haviuir the cardo of the ma.xilhe connate and a transverse impression immediately behind the clypeus, thus appar- ently separating the same fi'oni the front, and also by the better de- veloped labrum ((Jissler). Very young larvjc have their antennal joints more globidar than the older ones. In full-grown larva^ of the P^leodiini the first joint of the antenna^ is nnich shorter than the second, its substance soft, non- chitinized and retractile; its position is in a mimite cavity, which is surroinided by a semi-circular ridge ((iissler). William K. Krichson has described this as the first joint in the larva of TinebrioJ' From my er, and measured in length O.S mm.; wiilth, O.S.") nun.: elongate oval and milk white in •' I'.uU. P.ro. 496 HULLETIK t)3, UNITED STATES NATIONAL MUSEUM. color. Ill November (20th, 1877) he noticed tj^e first hirvse; none appeared after December. Mr. (jissler describes the hirva of hleodcs .5 and 10 null. I discovered them in July and I did not Unow how long they had been dead. I iiad not discovered them lud'ore A|)ril 18. Petween these larvse and those mentioned by Mr. (iissler I find very little resemblance. This ))i()b:il)ly dei)ends upon a ditferent age of the larvie, My study and dissections were made upon two REVISION OF ELKODIINI — BLAISDELL. 497 liiivu' 10 HUM. ill U'li^lli ( IM.ilf l;'.. Ii^>. 1-14). siipplciiienU'd l^y (!i«;ht others. Tlic illustrations |)C(iiiifii ^iiidicd l»y him tluTc wito two spines iirticiilatcd in one cavity, while in another spoeinien they were asyninietrically placed, nine on one side and ei«;ht on the other. In the sculpluiin^ of the py^idia a few sniootli s|)ots were observed in p]leo(les. ^ l.tijs siniihir in form, the anterior hir^n-r and stonter, chiws of^the middle and ])osti'iior aic di>(inctly more slender; the anterior are nmre stron«rly chitini/,cd. The eoxii' are (piite conical and transverse, also prominent. The anterior has sj)ines arranp'd as follow >: .Vt inner >ide of hase of chiw a spine points inward, tibije with three spines on inner sur- face, femur with three, trochanter with two. each podomerc with scatteicd flyin) tlie first post-embryonic stages are alike in the form of the pygidium. The integumentary appendages of larval jn'gidia may be regarded as the homolt)gues of the dorsal parapodia of their ancestors — the Annelides. Two very mintite tubercles can be seen under strong microscopic power at the middle of the base of the pygidial tijjs in hit odes. Whether they are orifices or not I can not decide. The larva' of Ele- odi'.s when disturbed and handled violently jerk their abdomen and spurt a turbid, odorless, watery fluid out of two lateral orifices situ- ated under the tergal fold near the j)osterior margin of the seventh abdominal segnuMit. These structures are a peculiar adaption to the larval body, since the excretion of the repugnatorial gland> of the imago is spurted out through the anal opening. The higher develop- ment of this gland is certainly attained during the pu|)al period ((iiss- ler). Mr. Gissler found that \\\ Iil(i niortlsaga i\\c \i\g\i\\\\\\\ had u>ually twelve lateral and two lalero-teiininal spines (Plate V.\, lig. is). Out of ten specimens two had sixteen in all, the rest oidy fourteen. In Ehodcs f/iffuntea and /i. dciiN/ns he gives as the usual numlxr of spines sixteen lateral and two latero-termimil. A number of cither species had only sixteen in all. (See Plate Hi. Iv^. 17.) The larva* of Eleodcft are abimdant. but I have never had time to successfully rear them, to determine the species to which they \yc- longed. From the sand dunes along the coast the larva- of A', rhtri- cornift and scahrosa have l>een taken. Two pupa' were obtained: one developed a rlnrirnrtiis. the other being identical was studi«'d. figuretl, and i)reserveU ill spirits. 500 BULLETIIs^ 63, UNITED STATES NATIONAL MUSEUM. PUPA OF ELEODES CLAVICORlilS. (Plate 13, fiRS. 1, 2, and 3.) Length, 10.5 nun,; Avidth of body, 4.5 nun.; greatest width from knee to knee, T nnn.-* Oblong-oval, moderately arcuate, head flexed against the prosternum; abdomen moderately depressed: color yellow- ish white. apj)endages somitranshicent. Head exjDOsed, vertex visible from above, clypeal region convex, frons somewhat transversely imj:)ressed. vertex rather more j^romi- neiit ; antenna' curving backward against the sides of tlie prothorax, over the profemora, at Avhicli point thev are not visible when viewed from below. Pronotum evenly convex; base almost truncate, basal angles rather broadly rounded, sides arcuate, apex feebly and broadly emarginate, with angles somewhat narrowly rounded. Mesonotiiin short, transverse, and moderated convex; elytral pads passing oblicpiely backward and ventrally above the pro- and meso- crura, apical fourth between the meso- and mctacrura, visible ven- trally only at this point. Epipleural margins apically contiguous to basal half of the mesotarsi. Mctanotum a little longer than the mesonotum, moderately convex, and broadly sinuate behind. Lcijs prominent laterally, not appressed against body, distinctly compressed and comparatively broad; tarsi distant from each other in median line, except the metatarsi, which are in contact in apical half; coxse and sterna visible in the median line, Ahdominal segments convex dorsally, less so ventrally; pleural region of segments one to seven produced laterally into subquatlrate laminiform processes; last two segments without lateral processes and more evenly convex from side to side. Fourth ventral segment deeply and broadly emarginate at apex; fifth smaller, rather arcuate at apex and within the emargination of the fourth; third segment l^roadly and less deeply emarginate. Abdomen at ai)ex terminating in two elongate i)rocesses, each grad- ually tapering from base to apex, the latter chitinous; beneath the bases of these cerci there is a small segment which is deeply emar- ginate, with angles [)rominent 2)osteriorly. The lateral processes of segments one to seven are limited at base dorsally by a longitudinal impression on either side of the dorsum ; the impression begins on segment one and ends on base of the seventh; ventrally the impressions are less strongly marked. In the specimen at hand the processes of segments two to six are deeply and semicircularly emarginate at middle third, each anterior and posterior third is squarely truncate at apex, with angles sub- acute, those at the emargination are chitinous and denticulate, each RF.VISUtX OF RLKODIINT — BLAISHKLI-. f)!)! (lenlato jm^Mc lias a small -eta at initldlc ttf it- >i(lc toward the ('niar<;iiiati<»ii ; coiiti^rnoiis ^idcs of the jh-iktsm-s of cadi atljoiiiiii^ s('<;inent narrowly cliiliiioiis, vcrv iniiuitcly and irrc^^ularly (h'liticu- late; posterior third of the process of first scjj^inent not developed; j)rost-apical series of very distantly spaced and similar seta', as well as an anteha-al series simi- larly spaced. In Plate l.'>, fin neai* the knee: fourth vential ah- dominal segment with a suhapical row of setje. Tribe RI.^Vl*'ri>I^T. In (Bhipft) the glohular outer antennal joints, wide ejiipleura' which terminate upon the external surface of the cauda when present, the intercoxal tuhercle of the first ahdominal segment and the pubes- cent pit at base of the second abdominal segment the present tribe stands in marked contrast to anything observed in the genus Elrodvft, and in fact all of the genera of the Khodinii, except in the wide epipleura^ which forms the whole infiexed sides of the elytra in EleodimorpJia. The genital characters are certainly very distinct and more ])rimi- tive than is to be seen anywhere in the Eleodihii. Genital rharartcrs, m(de. — Lobes of the sternite strongly connate, clava^ connate, lying dorsad to and forming a pallium for the edeagiis, more obsolete ala*, more embryonic condition of the edeagophore. there being a complete solution of continuity in the chitinization along the median line of both the basale ami ai)icale, thest> segments being longitudinally subdivided by an evident meml)raiu)us line into lateral sclerites. Fenudi. — Valves of the genital segment (Plate .'), figs. 1(5 and 17) completely chitinized. aj^ex of each unditTerentiated, appendage ab- sent. The facies of the segment is quite ditlerent from that observed in the EhmDinK but a phvlogenetic relationshij) is evident, I am not desirous to repeat what may alreali(|iie and the steiMia somewhat promi- nent; lirst sntnre with a fossa at middle, densely clothed with ei'\ed in the specimens at himd are as follows: Male. — Edea«rophoif. leuL'th ■'•.'» nun.: edeajrus l.."» nun. \'ei-y elon«rate. somewhat llattenetj. ■~ti-onu;"ly arched, -oniewhat (iltionLr- ovate and well chitini/ed. lidsttlr, elons<)liitely necessary to oreak a new tiiiu' {I'Jhodiini) to receive onr species. No sjx'cies of the lilap- tiiii {Iil(ipti(I: (he sj)ecies for Mi". CJrinnell. The following: i'^ a li'^t of the species: Eleodi's (icuticaudd IjcConte, also (he punc(a(e form; Elcodes^ acntuanda var. hiticollis, Eleodca conaohrina LeCon(e. The followinf; were described as new: Eleodia (subg:enus Eleodes) elongatd Grinnell; Eleodes hehril Grinnell and h^termedia Grinnell. The last two belong: (o (he subjrenus Bhiprjlh. In order (o more fully correla(e (liese new forn)s wi(h (he more recen( forms considered in the j)resi'nt monoirrajih, I carefully reexamined (he (y])es and record (he following: fac(s: All of (he specimens are very i)ri((le, deej) blaciv in color, and shin- ing:; they appear as if (he asphah had exerted some chemical effect upon (hem (hat to a certain ex(en( had modified (he s(ruc(ural details. These specimens are interesting: and i)resent some points of struc- ture and sculp(urin<: which can no( be correcdy (h'scrilxjd until a larger or more perfect series shall have been collec(ed. The heads, pronota. and appendages aiv missing from all the speci- mens, and the elvtra alone can not (ell the wjiole story. 506 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. ELEODES ELONGATA Grinnell. The type is a right elytron, fully exposed except the epipleural margin, which is sunken into the asphalt. The humerus and e])i})leura immediately beneath are free. The specimen is too poor and fragile to give a clear idea of the sculpturing. The elytron is in form like that of EJeoden grdudlcoJlh; the punctu- ation is similar, very sparse and .small, scarcely at all subasperate, and quite sharply defined; general surface glabrous antl shining. Humerus rounded, and the superior ei)ipleural uuirgin is thin and shai'p. Length, iJl.f) nnn. ; width, mm. Type-xpecimcn. — Number 1002."), Universit}^ California Collection of Invertebrate Pala'ontology. This sjDBcies really appears to be a foiin of grandicoH'ts; it differs but slightly from some of those of to-day. Grandicollh is so distinct that an elytron or thorax ought to be readily recognized. ELEODES BEHRII Grinnell. One elytron (left), apical sixth buried in the asphalt, dorsal sur- face and epipleura exposed, and in a fairl}' good state of preservation. The eh'tral hase is truncate, Jinmeruft rounded and not in the least prominent; side evenly arcuate; di.'il' moderately convex, broadly and evenly arcuately declivous laterally, not striate, jiunctuation diffuse, rather dense, subasperate, and with a tendency to coalesce in twos and threes, the intervals more or less convex and forming slight trans- verse rugula\ Ejyipleiira rather broad and concave, superior margin moderatel}^ prominent and rather sharp, gently curving upward anteriorly to the humerus, thence caudad more broadly and arcuately curving downward to apex; surface smooth, sparsely and distinctly punc- tate, punctures moderately small; there is also a trace of transverse ruguhe. This species is without a doubt closely related to fonsohrina or parturoUls: the elytral sculpturing is more like that observed in the latter. The epipleural characters are unlike anything known to me; the marked concavity is rarely observed in sporadic instances in individ- uals of to-day; the curve of the superior margin is more strongly downward to apex than in any species. It is possible that these well- marked characters are the result of warping in the asjihalt. This species is the only one of the three under consideration that probably deserves a name. It is surely a true Eleodes {Bhipyl'tfi) and not at all worthy of a generic standing, as the author suggest- ively wrote. REVISION OK KI.r.ODIINl I'.I.AISDKI.r,. 507 Len<^th. l<> iiiiii.: widtli. !.."• imn.; ^^rcatot wiiltli <»f r|iij)l(Mii'a, l.r> inin. 77//>r-s7"v////r//. Niiiiilu'r 1()0"_';'.. I 'iii\<'r-it y ( "ali fdiiiia ( 'ullccl ion of Iiivt'ilt'ljiatt' l*ala'()iit(>l()i(l(' would <:ivi' a inoic In'oatlly oval li;rnrt'. liUc thai ()l)siM"\ t'(l in a small /^itrrico/Z/.s, the dni-al -in faVc hciiijr sonu'wiiat flalt.'iKMl. ELEODES INTERMEDIA Grinncll. A ('oni|)lrt(' alKlonicn, nicMt- and niclalhoiax. with clytia. consti- tuti's (he type; tlu' >|)('cini('n is (piitc stron^dy (latl('n<'d. The form of the hody is hioadly oval and truncate antei-iorly. I'JIi/trti truncate at hase; hmneri rountices convex, forming slight transverse rugulie; sculjjturing denser and coars4'r laterally and on apex, not in the least striate; surface evidently evenly and nioderately arcuately declivous posteriorly. E i>'iphiii(t rather hroad at hase. gradually narrowing to apex; siir- face distinctly concave throughout, (inely. >ul>asperately, and s|)arsely punctate; superior margin strong, quite sharp and prominent, not sinuate heneath the humeri, hut straight in the antei'ior moiety, and thence quite evenly and gradually arcuately descending to a|)ex as viewed longitudinally. Mcsostcninm evidently feebly arcuately declivous, deeply concave at middle between the prominent and rounded acetabular borders; very densely, rather finely and confluentlv punctate. Mvtdntcnnini and episterna densely and rather finely i)unctate. The metasternuin laterally l)etween the coxie a|)pareiuly about two-thirds as long as the post-coxal part of the first abdominal segment. AJxloniiti densely and moderately coarsely jjunctate. First segment at middle evidently as long as the second and third segments com- bined; intercoxal salient quadrate and distinctly transvei^se, surface concave and evidently w ith glabrous areas, ecpial in length to the |H)st- coxal part of the same segment; second and third segments evidently equal in length and each snbequal to the length of the po.st-coxal part of the first. IxMigth, 1:* nun.; width of i-lytra, 8.5 nnn. Ti/p('-fh)gic;d fauna, consid- ers that the above data substantiate the statements that have been made from time to time that a great deal of the so-called Upper Sonoran or Californian fauna found its way into this State, from the south, at a very early j^eriod, probably during earlj- Tertiary times. Ill this list are to be included most of the typical genera and sub- genera of the most southern parts of the State. Already at the time at which these deposits Avere made, most of the species had assumed the appearance that we see in their descendants, the forms living at the present day. KXri.ANA ri valvular lut'iiibiaiir rather lar;:t'ly «'X|uis tlu* siiin'rior pndciidal iiicin- braiii'. 2. Ventral view of tlie left valve of I-JIcodrs nigriita ; showinn subiimr- Kinal groove, eom-ave ventral snrfaee of apex and part of tl»e gf^nital tissure. o. Dorsjil view of tlie aiiieale of the e«h'apipliore of EUoiUh niijiimi ; show- in.c the depresstnl and broadly nienibrano-ehitinons area at middle. 4. Korsal view of tlie ;;eiiilal segment of EUmUs t/h/fnitoi: sliowiug the fully exposed superior pudendal membrane, falciform dorsal plates, ehitiiious and evertwl apiees, and nnnute appendages. 5. Ventral view of the left valve of the genital segment of IJlnnlcs gi- gantca : showing the broad submarginal groove continuous with the concavity of apex, straight internal margin of the valve, and absence of the genital tissure. G. Dorsal view of the apicale of the edeagoplmre of ElcfxUs ingnnlra; showing the broadly and strongly dei)ressed membranous surface anil slightly recurveorsal view of the right valve of the genital segment of Elrudcs prdi- noidvK, typical form ; note the explanate and plane dorsjil plate which is evanes<-ent a|iically Into the well-develo|KHl external apical lobe, also the small rudimentary internal lobe and long pudendal membrane. 12. Dors;il view of the right valve of the giMiital st'gment of Kbudrs cx- triiiiln. Iiutual form; note the oval-oblong dorsjil plate, acute and sunill a|H>x. large and tiatteniil appi'udage. 13. Dorsal view of the right valve t>f the genital segment of Klrndrx ub- ficura, ti/pu'dl rnnrt]/: note the dorsal {Mtsition of the stit>marginnl groove, dorsal plate api>arently contract*"*! with siiles arcuately re- flexeex above and the abducted clava beneath. 20. Dorsal view of the right valve of the genital segment of Elcodcs )iiili- taris; note that the dorsal plate is concave with sides retlexed, sub- marginal groove somewhat visible from above, appendage large and flattened, the basal prominences evident. 21. Dorsal view of the right valve of Eleodcs lut-iv; compare with figs. 18, 20, and 22. 22. Dorsal view of the right valve of Eleodcs luca', forma influta; compare with tigs. 20, 21, 14, 17, and 23. 23. Dorsjil view of the right valve of Eleodcs tt.iintu; note the resemblance between figs. 22, and 21 .is compared with 13, 14, 15, 16, and 17. Plate 2. I"'ig. 1. Dorsal view of the edeagophore of Eleodes^ omixna ; note the membra- nous groove of the apicale, the fully abducted clav;e and the extruded edeagus. 2. Steruite (male) of Eleodcs o)i>iiif ; c(uupare with fig. 2: Tlate 3. fig. 2. and Plate 4. fig. 15. 12. Dorsal view of the genital segment of Eleodes marriluaia ; note the nearly fully chitinized valves, the produced and everted apices, and punctiform appendages. Compare with tig. 16, Plate 5. REVISION OK KLKODIINI — lU-AISDELL. 511 Fij;. !•'!. X'fiitr.il view of llic pMiitiil scu'im-iit of F.hnihH intiif/iniiln : note tin; coiitifi'ious iiitcniiil iiiiir^'iiis of tlic viilvrs niul compMn' with fiu. Hi, Plate 5. IM,ATK :{. FIjJ. 1. Dorsal vi«>\v of the (MU'ap)plion' of EhndtH ohsnhtn: sim- explanation of lii:. 1. riate 2. 2. Sternitf (niaie) of EUoilin nhxalrdt : conipari- witli li;,'s. L' and o of Plate L'. 3. Dorsiii \ ii'w of tlie >;enital seKUient of EUoih.s ohxnirtit ; note the very explanate dorsal plates, espeeialiy at apex; compare with tips. 3, 9, and t; of Plate 2. 4. Ventral view of the p-iiital se^^nHMit nf KUors;il view of the riu'lit valve of IJIcititrs Irtchrn ; note resemblance to Hn. 12. Plate 1. (J. Ventnil view of tlie left valve of IJhrt'lrs liUluri. 7. Dorsal view of the rifjht valve of ElroiUx tuiiticaiida ; compare with ti«.s. 12, i:{, and !> of this plate, and Hks. S and is of Plate 1. 8. Ventral view of the left valve of Elcrxlrs orsal view of the right valve of Elcodcs inncafa : note the broadly ronnde«l external apical IoIh': coniiiare with tig. .3: tlie explanate mar- gin of the dorsal pl.ate is less dia]ihanons. so that tin- body of valve does not show through it. 15. Dorsiil view of the right \alve of Elcodcx nhsohtti; variety showing the ol)soIete exiilanate margin toward base. It!. Dorssil view of the right valve of Elcodcs citrbinini'm ; compare with figs. .3. 14. 17. IS, and 20; also figs. 3. <5. and 9. Plate 2. 17. Dorsal view of the right valve of Elcodcs hiinicrnlis; see for com- I)arison fig. 1(>. 18. Dorsal view of the right valve of Elcodcs ciiik iilicollis : see for com- parison fig. Hi; not«' the more membranous external apical lobe. 19. Dors;il view of the right valve of Elcodcs hisi>ilubris : compare with tigs. 7. S. 1!», and 2.-. of Plate 4. 20. Dor.sal view of the right valve of Elcodcs Iricostala ; note the distinctly oblong dorsal plate and com|»are with fig. 11, Plate 1. Pl.vtk 4. Fig. 1. Dorsjil view of the right valve of Elcodcs scabricuin ; compare witli fig. 12, Plate 2; the notch ears to be constant. 2. Dorsal view of the right valve of Elcodcs iicotonKT : noti' the subai»lcal {KtsitioD of the apiKMulage and comi>are ligs. 9, 10. aud 10. 512 BULLETIN m, UNITED STATES NATIONAL MUSEUM. Fig. 3. Dorsal view of the right valv(> of Elcodrs (Proiiiun) fusiformis; note the broad and setose dorsal plate as coniparea to the species of the other subgenera : compare figs. 4, 5, and 22: also figs. 2 and 3, Plate .">. 4. Dorsal view of the right valve of EJnidcn oixica; note the less setose condition. See for comparison fig. 3. 5. Dorsal view of the right valve of Elcodrs gonjl. See for comparison figs. 3 and 4. 6. Dorsal fiew of the right valve of the genital segment of Elcodcs cor- data; note the oblong dorsal plate with apical angle evident; com- pare with figs. 9, 10, 11, 12, and IG, also observe the shortness of the superior pudendal membrane as compared to figs. !), 10, 11, 12. and 10. 7. Dorsal view of the right valve of Elcodcs caudifcra; compare with figs. 8 and 23. 8. Dorsal view of the right valve of Elcodrs sponsa. 9. Dorsal view of the right valve of Elcodcs consohrina ; compare with fig. 10, which is a little less swollen at ai)ex, but the same. 10. Dorsal view of the right valve of Elcodcs consobrina; compare with fig. 9, whicli is more swollen at apex, but the same. 11. Dorsal view of the right valve of Elcodcs clavicornis ; note the elon- gate form and narrow dorsal plate and small membranous apex; c-()niiia)-(< Willi tig. 22. Plate .">. 12. Dorsal view of the right valve of Elcodrs snoicii; compare with fig. 9, Plate 1, and fig. 21, Plate 5. 13. Dorsal view of the right valve of Elcodcs granosa; compare with figs. 14 and 2S, noting the short sviperior pudendal membrane. 14. Dorsal view of the right valve of Elcodcs pilosa; compare with figs. 25 and 2S ; also with fig. 12, Plate 1 ; fig. 5, Plate 3. 15. Sternite (male) of Elcodcs siilcipcnnis ; comi)are with fig. ."». Plato 2; also fig. 2, Plato 3, and fig. 11, Plato 2. Note the circular membranous area at base between the lobes, the latter densely pubescent. 16. Dorsal view of the right valves of Elcodcs iihUilis; note the elongate form, short appendage, and apex; compare with figs. 2, 10, and 11. • 17. Dorsal view of the right valve of Elcodcs vctcrator; note the undiffer- entiated ai)ex from dorsal plate, and absence of the appendage. IS. Dorsal view of the right valve of Elcodcs fcinorata; compare with figs. 17 and 20, Plate 1. 19. Dorsal view of the right valve of Elcodrs gracilis; comiiaro with fig. 23; also figs. 9 and 11, Plate :',. 20. Elcodcs innoccns. — Dorsal view of tlio apicalo of the ('iloagoiilioro: note resemblance to fig. (>, Plato 1. 21. Elcodcs innoccns (female). — Dorsal vii-w of the genital segment; com- pare with figs. 4 and 7, Plate 1. 22. Elcodcs iusulnris (female). — IVirsal view of the right valve; com- iiaro with figs. 3, 4, and .1, Plate 4. 23. Elcodcs longi pilosa (female). — Dor.'^al view of the right valve; com- pare with figs. 7 and s, I'late 4. 24. Elcodcs knausii (foniale). — Dorsal view of the riglit valve; compare with figs. 10 and 3. Plate 3. 25. Elcodcs arcuata (female). — Dorsal view of the right valve; compare with fig. 12, Plate 1. 26. Elcodcs dchilis (female). — Dorsal view of the right valve; note the less rounded and more strongly chitinized dorsal plate and short membrane; compare with fig. 1<>, Plate 3. These characters were present iu all specimens examined. KKVlSl'iN or l.Ll.oi.iiM LiLALSDLLL. ol;i l-'if;. L'T. ElauUs antitln ( fiMiiiil(>)- — I>i>isiil view of the ri^clit valve; coiiipiin- with liK. ic. riiitc :'.. 28. FJioiUh (jnniiilatu (f«'iimle). — I)f)rsiil vlfw of the riuht vnlvr; coiiiiniro with llf,'. i::, riatr 1, and tit:. .', riati- :;. Fip. 1. r.UniUa rrntrirnsa ( ffiiialci. -I >orsal view of the ri^ht valve: note tlie ol»]!i|ue a|iiorsal view of tin- ri^'lit valve; compare with fi)i. 3; also, fiys. li, 4. 5. and 22 of Plate 4. 3. IJhoilcs .siilniittns (female). — Dorsal view of the riirht valve; com- parisons the same as for lis:. 2. 4. EUoOcN i»ii lii'tllis (female; t.vjiicall. — Dorsal view of the riuht valve; compare with ti;;. 22; also. ti;:s. 2. tJ. and Kt, I'lat»> 4. Ti. Hhndfs iiiincliitiihs (female). — Dttrsal view of the riulit valve; compnii' with H;:. Vk Plate 4. G. Elcodcs ithiiiiiti'iuiix (female). — Dorsal view of the penital segment; note re.semltlance to tifis. 7, 8, !>, 14, and 20; also, comjiare with tins. (; and 10. Plate 4. 7. KdiIhi lilt ion iniiiicatinn (female). — Dorsal view of the freiiital sej.'nient ; comiiarisons are to l)e nia with tiirs. (>. s, U, 14. and 20. S,. IJiiihiipJiioii <-(iii(iisi(iii (female). — Dorsal view and comparisons the same as for t]}i. 7. U. Ftiihdiiliiun iilinnim (female). — Dorsal view and comparisons the .same as for tij:. 7. 10. Elcndrs ftclnrorzii (female). — Dorsal view of the penital se^nient ; coni- jtare with fijrs. 11 and 12. noting that the valvnlar apices are qtiite ditTerent. but fnll.v chitinized; compare also with tii;. 1. Plate 1. 11. Elcfidcs iimiihiisin (female). — Dorsal vi«'w of the riirht valve; compare with tis. 12; and also ti;;. 1. Plate 1 ; note tiie prodm-ed parallel a|)ices with tips broadly rounded. coi!v»'.\ above and concave beneath. 12. Ehdths (lixsiniilis (female). — Dor.s-it view of the ri^'ht valve. 1.3. EUfiilcs inciiltd (female). — Dorsal view of the i^eintal sediment; com- pare with tijrs. •) and 10, Plate 4. 14. Emhnphion phihnini (female). — l)ors.il view of the riu'ht valve; com- pare with fips. ('», 7, S, f), and 20. 15. ElcndvK iHtinii (female). — Dorsal view of tin- ircnital sejiment; note tlie tumid apices and smooth membrane; comjiare with ti;;. !•. Pl.itc 4. 1(J. Ilhiiis siinilis (fem.ile; West \'ir;rinia). — Dor.sil view of the «enit:il se^nneiit ; note the fully chitinu»'i>in;fiiix (female). — Dorsal view of tlie ri^Iit valve; compare with tij;. ]1». Plate 4. and ti;;. !i. I'late :!. 1!>. Eliiiilr.s ilistnii.i (ft'in.ile). — Dors.il view of the riirht valve; comp.-ire with ti«. 11». Plate 4. 2o. Enihiii)hii>in!/ii, female. — Dorsal view of the genital segment; compare with fig. 4, Plate .">. 3. Elrotlcs cuHcyi, female. — Dorsal view of the genital segment; compare witli fig. 14, Plate 4, and fig. .". Plate .1. 4. Dorsal view of the genital segment of CcrciKipKs coiicolor. 5. Edeagophore of CcicnoiJUS concolor, dorsal view. 6. Sternite of Ccrcnopiis concolor. 7. Dorsal view of the edeagophore of Trof/lodcnis coxtntus. 8. Sternite of Troylodcrns costatiis. 9. Dorsal view of the edt'agophore of Xijctoi>ont.s frqiiicoUis. 10. Dorsal view of the genital segment of yiKtoponis ofjiticoUis. 11. Edeagophore of Elcodimoriiha hoJcan, dorsal view. 12. Dor.sal view of the genital segment of Elcodimorijlnt bolcan. 13. Dors:il view of the genital segment of Troglodcrus cositatus, female. 14. Dorsal view of the genital segment of Troglodcrus tuhcrculatuH, female. 15. Last two joints of the ma.xillary palpi of Troglodcrus luhcrculatus. 16. Mentnm of Elcodcs iiigrhia, female. 17. Lahrnm of Elcodcs iiigrina, female. 18. Inferior internngnal process of a metatarsus in Elcodcs dcnli/ics. male. 11). I'ngnis from metatarsus in E. dcntlitcs, male. 20. Mentum of Discogcnin munjiudtn, male. Pl.ATK 7. Fig. 1. Ventral view of the male genitalia of Elcodcs ctirdnta, edeagophore partly e.xtrnded. 2. Dorsal view of the same, edeagophore completely e.xtruded. o. Ventral view of the genital segments of Elcodcs cordnla. female, valves abducted. 4. Dorsal view of the same. n. Ventral view of the sternite of Elcodcs parricollis, apicale slightly visible. G. Ventral view of the apicale of the edeagophore of Elcodcs cordnta, show- ing clavjT^ partly abducted and edeagus nearly protruded. 7. Ventral view of the apical half of the edeagophore of Embaphion coit- tusuiii. showing parts in place. 8. A'entral view of the ai)ical half of the edeagophore of Elcodimorplia bolcan, showing relative ii()sition of edeagus, elav;e, and subahe; com- jiare with figs. 7 and 1. Erplannlion of figures. — a. apicale; h. edeagus; c. clava : d. basale; c. sternite; /, apex of right lobe of sternite; g, membranous interlol)ar region of ster- inte; /*. membranous apex of the valve; /. aitjiendage; ./. apical angle of the dorsal plate; /.-, sulimarginal groove; 1. explanate external border of the dorsjil jilate; in. ventro-lateral surface; //. membranous Sth segment, with sclerites of the i)aranal region and their articulation with base of the ventro- REVISION OF KLKODIINi BLAISDELL. 515 hitrnil l:iiiiiiiM slmwiu^' tliniiij.'li ; o. slrniilc ;isjil iniKcss of tlio siiiiic; />, stiTiiitf ol' the *illi s«'i;iiumiI, lljrs. 1 and .'I; tiTuit** (if lli«' (itii si-miifiit. (1>rs. li iiiid I; */, suprji iiiial plat*'; ;•, t«Tuit«' appciula^c; t, superior piidtMulal iiu'iiiltraiie; 11, dorsiil plate; r, valvular iii(>iiiliraii)>: ir, inferior pudendal nuMnlirani*; j-, Kcniial nri- lict' ; y, inllt'Xed ala* of tlie apicaif; :. inllexcd sides of tiie basale. Tlatk 8. VifX. 1. Head of EUodm dditiixs, showing; lines of measurements: a, median lin<>: h, i>ost-marKinal ocular line: f. imst-ooular lino. ■J. I.(>ft mandilile of i:iiii>lr.s (iiKnlrirollis (femalei. internal surfac** show- in;.': molar (r), hninia tin, and post-molar membranous loite K/t. 3. Labium of IJIcodcs dciitiiws: a, the cldtinous paranlossti whlc-h Is connate with the body. 4. I>ia^ram showin.u' the n-ialive lenjrlhs of tiie dilTerent sejrments of the leps and abdomen in KUndix xuh-ii^rniiis: A, femora: (/, metafi>mora : li, mesofeujora ; r. i>rofemora. B, tibia' : d, inetatiliia : <, mesutibia ; /, prutibia. C, tarsi: fi. nietatarsus; Ii. mesotarsus; /. i>rotarsus. I), abdominal se^'ments: j, lirst visiliU-: /.-. second; /. third; m. fourth; II. fifth. 5. Mentum and labium of IJliudcs .■^nibrusii. G. Meutiim and labimn of I], chiricuniis, .slijibtiy extended to show relation between labium and lateral lobes of the mentum, the middle lobe free at ai)ex. 7. I'rotibial sjnirs of FJiitdm ijiiadrirnUiK, female: (i, iiosterior ; b, an- terior. 8. Side view of tlie first two .joints of the i)rotarsus of Elrodrn sulripciinis, female: a, tuft of modified spinules at apex beneath, the latter Ihifkened an«l produced: />. apico-niar^inal tuft of si»inules bounding gr(H)ve at apical margin of second joint: c, apical spines. 9. Outline of side view of first two joints of the profarsus of E. stuhi- liciiiiif!. male, showinj: the fireatly thicl side and from above; b. as viewed vertically from above. 9. Pronotum of Eleodes eniboniirid. fornix fihibni. female. 10. Pronotum of Eleodes eorbonitrin. fonnn liipica. female. 11. Pronotum of Eleodes envbomn in, var. soror. female. 12. Pronotum of Eleodes obxoleta, var. porcnta. male. 13. Pronotum of Eleodes obsoleta. male; '/ and b. showing variations in form. KEVitJiuN Ub tLKulJlIM BLAISDKLL. 517 I'M;.'. 14. I'roiiDtiini of Eliotlns ubsuhln, ffiicik'; i/, ji.s sttMi vertically fii>in iiliovi-; h, :is s(H'ii otiliciut'ly from altove and to liu' sido. ir». rroiiotuiii of I'.hinlrs hiiiiuxii, iiiali'; illii.stratiii}; two variations in form. !»;. I'riinniiini of IJhmlis hiinitsii, ft'inalc; Illustrating two variations in form. 17. Pronotum <»f llUodis lrii. rroiiotum of ElcoiUn hiiiiti rnlis ftinnn fiiiniiihitti-nniriciitu. 21. Pronotum of tJlrmlrs viiucaticillis, male; illustrating: two variations in form. 22. IM-oiiotiim of EUndcx tricusttita, female. 23. rroiiotum of EU<»Us ik outr.ricttnu, female. 24. Pronotum of EhoiU's iicdiuoidis, male. 2r». Pronotum of Elcodcs obscitra, female. 20. Pronotum of Elcodcs hixiiUdlirin, female. 27. Pronotum of Elcodcs sponxd, female. 2n. Pronotum of EUoiUs xponsn. female: a variation. 2i>. Pronotum of Elcodcs caitdifi ra. female. 30. Pronotum of Elcodcs cnudifcni. male: a variation. 31. Pronotum of Elcodcs loiiffiitilosa. female. 32. Pronotum of Elcodcs f/iacilis, female. 33. Pronotum of Elcodcs dciiiiins, female; illustrating two variations in form. 34. Pronotum of Elcodcs dciitipcs, female; taken from an aberration. 35. Pronotum of Elcodcs doitipcs, female; drawn from an alterration in my own collection; the ripht side is that ()f coiifiiiis, and |irol»al>ly a reversion to the ancestral arnnttu. 36. Pronotmii of Elcodis dcntiiics fonini conflnis, female; drawn from the t.v|K' in my own collection; probaid.v a reversioiial form. 37. Pronotum of Elcodcs armnta var. inijiotcits. female; drawn from the type. 3S. Pronotum of Elcodcs aniiata, female; a variation. 39. Pronotum of Elcodcs nniKita, male. 40. Pronotum of Elcodcs inilUdiis, female. PlATt 11. FifT. 1. Pronotum of Elcodcs f( nionitn. male, 2. Pronotum of El. Pronotum of Elcodcs ( schsclioltzi, female. »;. Pronotum of Elcodcs ttHuipcs, male. 7. Pron(»tuni of Elcodcs irirkhdmi, male. N. Pronotum of Elcodcs rcnlricosd, male. l». Pronotum of Elcodcs rcnfrh-osd, female; variation. 10. Pronotum of Elcodrs fdlli. male; drawn from ty|>e. 11. Proimtiim of Elrodis f/rundicollis. male. 12. Pronotum of Elrodis insiihiris. female. 13. Pn«notum of Ehodis suhnitcns. female. 518 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. Fig. 14. rroiiotuin of IJIcodcs fusifonitis. ffiiiMlc. 15. rronotiini of Elroflrf; striolata. male. 10. rronotum of Elcfitlc.'^ fl>>'!/i, female. IT. Pronolum of Elcodcs oixtca, female. IS. I'roiuttum of EIc^kJch vctcrator, female. 10. rronotuiii of IJIcodcs arciiriia, female. 2(». Pronotum of Elcodcs cxtricatn, male; variation. 21. Pronotum of Elcodcs extricata, female. 22. Pronotum of Elcodcs grannlata, male, fonnn tiihirciihifa. 23. I'ronotum of Elcodcs raiidi/kci. male. 24. Pronotum of Elcodcs raiidijhci, female. 25. Pronotum of Elcodcs Iclclicri, male. 26. Pronotum of Elcodcs Ictchcri, female. 27. Pronotum of Elcodcs pilosu, male. 2S. Pronotum of Elcodcs pilosa, female, variation. 29. Pronotum of Elcodcs pilosa, female. 30. Pronotum of Elcodcs hirsnta, female. 31. Pronotum of Elcodcs granosa, male. 32. Pronotum of Elcodcs (iranosn, female. 33. Pronotum of Elcodcs tibialis, male. 34. Pronotum of Elcodcs inciilla, female. 35. Pronotum of Elcodcs stioivii, female. New .Mex'ico. 36. Prouittum of Elcodcs snonii, female. Arizona. 37. I'ronotum of Elcodcs tenebrosa, female. 38. Pronotum of Elcodcs claviconiis. female. Pr-ATio 12. Fig. 1. Pronotum of Elcodcs Jinriiii, female. 2. I'ronotum of Elcodcs neotoma', female. 3. Pronotum of Elcodcs consobrina, female, typiial form. 4. Pronotiun of Elcodcs scabrofia, male. 5. Pronotum of Elcodcx rolKnilipcnnis, male. 6. Pronotum of Elcodcs rotiindiiirnnis, female. 7. Pronotiun of Elcodcs parricollix, male, t.vpit-al form. S. Pronotum of Elcodcs prodiicia, male. 9. Pronotum of Elcodcs fuchsii, female. 10. Pronotum of Elcodcs cordaUi, female. 11. Pronotum of Elcodcs piiiiclioidcs, male, two variati<»ns. 12. I'ronotum of Elcodcs ctisci/i, female. 1.".. Prctnotum of Elcodcs nif/rina. male, showing two slight \ ariations. 14. I'ronotum of Elcodcs iiifiriint, female, drawn from an alierratinn simu- lating liiinicralis. 1't. Pronotum of Elcodcs pcilomja, male. It;. Pronotum of Elcodcs ucradcnsis, male. 17, I'ronotum of Elcodcs dissimilis, male. 15. I'ronotum of Elcodcs scJnrarzii, female. 19. I'ronotum of Elcodcs gigantca. male. 20. Pionotum of Elcodcs gigaiitca, female. 21. Pronotum of Elcodcs (striata, female. 22. I'ronotum of Elcodcs longicollis. male. 23. Pi-oiiotnm of Elcodcs longicidlis, male, elongate cylindrical form, 24. Pronotum of Elcodcs iiiiiocciis, female, » 2."i. Pronotum of Elcodcs inurninuta. male. I5KVIS10N OF KLKoDIlNI — BLAISDELL. f) 1 I'i;:. IKi. rruimtiiin (if I'JiuiUh snihi iiuUt, lunlc. 27. I'nuuUmn of Klcndcn itlnniiwunis, foniMle. lis. I'roiiotiiin of f'liihaitliiini niiiriciitiiin. male. Ult. ri'oiHitiini of KiitlnifiUinn intitutiuiii. fiMimle. oO. rroiiDliiin of i'liilmiihiini iihiiiuin, iiuile. 'M. rroiKitiun of I'.iiilniitUinit {ihihnnn, fiMii.iU'. ?,2. rroiiiiinin of Unihnpliion ilnni/iitiiiH. iiiiile. 3,'i. ri'oiiotiiui of Klioihs honiii, uuile. y4. rroiiotiuii of IJIcijih X (lishnis, iiiiilc. .'{.">. rroiiotuiu of Khoths niibiiinyiiin, feiuah'. 3(5. Prouotuin of lUanhx gvntUi.s, nialo. dniwii from a I.fCdiitc t.v|»o. 37. rronotum of I'lnhdithiuii coiitnKtuiii. 3S. rrniHilnm u( 'I'lui/I'iilcnis tulnnuhil ii>t, fcmali-. .t!>. rinriiitnm of /.'h tuliiiinriiliii ln>l<. .ViiiiMMiM of lihiiis larva, .\fter (Jlssler. 17. I'y^'idinm of Ehudrn larva. After (Jissler. 15. I'y;:idiuui of liUtits larva. .Vfter (iissler. INDEX Tho black-faoHl nninb<»rs indicate RoniTlc or spodflc dosoriptlons. A. Papo. acuta, niaps 195 EL-odrs 185. 195 aciiticaiida, KK-wlcs 234,276, '>no Akls(?) inuricata 473 altomata. Pimclia 104 Amphidora 3 ampla. Eloodos 38,40,68 anthracina. Eloodes 87 arata. Eloodrs 185,187,1»4 arcnata. Eleodfs 116 arizoncnsis. Elowirs IIC, I2.'» annata. Eloodcs 234, i59 aspora. Eleodes 127.1S0.131 asperata, El«?odes 109,111 n. bohrii, Eloodcs 5a5,."jO« blanchardii. Eleodcs 310,311,312,3:19 Blaps 3,25,29,30,502 acuta 19.5 carbonaria 45 extricata 121 hispilabris 217 ■ mucronata ." 504 obsciira 1S7 obsolt-t a 58 opaca 175 simllis .t04 suturalis 199 tricostata 104 Blaptid.-c .io.-) Blaptini 501 Blapylis 34, 35,806, 505 bolcan. Eloodimorpha 479 brunnlpcs, Eleodcs 313,384,as«'i C. carbonaria, Blaps 45 Eleo«les 38. 40, 45 caaeyi, Elewles 311.313,S.S8 caudlfern, Elocles 2:2,225 ilaviconiLs. Kli'odes 310,311, 312,371.. VtO lopnata, F.leodes 121,123 composltus, Eloodry 217 loncavum, Embapl.iun ; 473 (•onftnls, Eleoo.'1,467 convcxa, Eleodcs -connex a. 217,220,222 cordata, Eleodcs 19,310,31 1,31.J, 379 costntus, Troploderus 486 cuncatlcollis, Elcodes 38,40,91 D. debllis, Eleodcs 38, 40,41 delota. Elcotles 185,187 dentipes, Eleodcs 8,234,251, 49*>,497 lieiircssa, Eleodcs 453 depressum, Embaphion 45ft Distogenla 33,3.5,4S4 Group A 434 Group B 434 a''> rar. laticollis 234,27C.,2S0..'iaS ampla 3«, 40.58 itir. dolosa 38.40 57 anthracina 38. 40.S7 arata 185,187,194 arcuata 116 arizonensis 1 !•'•. 125 arniata 234 . 259 ror. impotcns 234,2.'i:t.268 aspera 127.130 a.si>erala lO'.t. 1 1 1 behril ."KV.dflft blunrhardil 310,311. 312. 339 cjuljomula .38.40.15 ror. soror 3S, 40.50 («sejri 3,l:t.3.H,>< caiidifcra 2 1 2 225 clavlcomls 310,31 1, 312,87l..'iOO rosnata 121 composita. 217.221 confinls 2.'.I.245 521 522 INDEX, Page Eleodes connexa 217 consobrina 310,311,312,333, Mo constricta 312, 355, 305 cordata 19,310,311,313,379 var. rotundipennis 379,384 cuneaticollis 38,40,91 debilis ?8,40.J1 deleta 185, 187, 194 dentipes 8,234,251,49*1,497 depressa 453 diS!)ersa 185, 187, 190, 191 dissimilis 393,398 var. nevadensis 393,402 distans 242 dolosa 38,40,47 elegaiis 251.255 elongata 505. 506 escttscholtzi 235,285 var. Incn? 235. 285.289 estriata 412.421 ex t ricata IKi, 121 var. arlzonensis 125 falli 235,305 femorata 272 j flscheri 4.3G , fuchsii 310,311,312,343 ' fusiformis 156,172 I gentilis 412,416 j giganlea 411,412,496 mr. estriata 412.421 | gentili.s 412.416 j goryi 150, 164 gracilis 235,237 var. distans 235,242 grandicollis 207 granosa 147 graniilata 110,127 haydoni 425 hirsuta 138, 139 hispilabris 212, 217 hoppingii 310, 311, 312, 368 hornii 310,311,312,350 hnmoralis 38, 41, 95 immunis 45 impotcns 259,263 | impri'ssicollis 371 inculta 310,31 1 , 329 innocens 412.429 insiilaris 156 inttTiiH'dia 505,507 intornipta 72 intricala 379 knausii 38, 40,67 larva 496 lecontei 217 lecontei 310, 311 . 321 letchcri 1 16, i:J3 var. vandykoi 136 longit-ollis 411.423 longipilosa 212, 230 liistrans 38, 40, 89 inarginata 435,436 militaris 234,267 var. fr-morala 234.272 nRomoxicana 38, 41 , 1 13 ncotoniif ... 310, 311 , 312. 347 _ Page. Eleodes nevadensis 393,402 nigrina 393 var. perlonga 393,398 nitida 450, 493 nupta 217,220 obseura 185, 187 , 193 var. dispersa 185, 187, 190, 191 var. sulcipennis 185,187,190,194 var. typica 190, 19;j obsoleta 38, 40, 58 var. poreata 38,40, 58,63 obtusa 127, 130 omissa 38, 40, 72 var. peninsularis 38, 40, 79 var. pygmsea 38,40,77 opaca 156, 175 parvicoUis 310,311,312,351 var. constricta 312,355,365 planata 312.35.'>.359 producta 312. 35.'). 362 pedinoides 38, 41, 109 var. noomoxicana 38,41,113 peninsularis 38, 40, 79 perlonga 393,398 pilosa 138, 142 pimelioides 310,311,313.384 var. brunnipes 313,384,386 planata 104 planipennis 435, 445 poreata 38, 40, 63 prodii.ta 312. 302 prominons 251 , 254 pygmaa 38, 40, 77 , 418 quadricoUis 38, 40, 81 var. anthracina 38,40,87 Instrans 38, 40, 89 reflexicoUis 450, 494 rileyi 38, 4 1 , 100 robnsla 104,106 scalmciila - 435,410 scabripcnnis 312,338 scabrosa 310, 311,312, 375 var. rotundipennis 312,384 schwarzii -. 393,406 seriata 104 sinuata 2'M) snowii 310,311, 31 7 soror 38,40,45,50 sponsa 212.213 striota 379 striolata 150,168 subaspera 127 subaspera 321 sulicylindrica 235,246 suliligata 384 subnitens 15«), 161 subpinguis 234, 247 sulcata 217 sulcii)ennis 185, 187,190,1*1 suf.!ralis 185,199,20:? mr. texana 185,139,202.203 typica 202 tai-salis 81 tenebrosa 310,311,323 var. nana 311, 328 teuuipes 235. 294 INDEX. 523 Put;.-. Elcodcs Ip.xaua 185. 199, 20-.'. Jta tiblulls 310,311. SIS tricostata 38.41,101 tii!)erciilata 37'.) vaUdn 207. S08 vandykci ll(j.IS6 ventrlcosa •.::!,■). :100 i^r. fall! 3;W.80:i vc.se.vl 3;U veterator 1 79 viator 384 vlclna 4,'iO. 4tt!l wickUaml 2;i5. ^O. Eleodiini 27.30. 41i.'"i Eleodiinorpha .' 29, 30. 477 Iwlcan 179 eiongata, Eleodps 505. 50« eloiiBatuin, Enibaphion 4*5. 4*1 Emlxiphion 29. 30, 450 concavum 473 conlroc'tuni 453, 4fiO contusum 453, 467 var. laniinatum 407, 47*2 depressum .". . . 4o;i elongatuin 453. 454 glabnini 453. 457 muricalum 453.473 planum 453. 464 eschscholtzii, Eleodes 235.285 estriata. Eleodes 412. 421 extricata, Blaps 121 Eleodes 110, 121 falU, Eleodes 235„'J05 femorata, Eleodes 272 flscheri , Eleodes 430 fuchsii, Eleodes 310,311,312,343 fusifomii.s, Eleodes 150. 172 gentllis, Eleodes 412,416 glcantea, Eleodes 411, 412, 496 glabrum, Embaphlon 453.457 gorji, Eleodos 150, 104 gracilis, ElPOodes 156 lntermeili;i, Kleoiles M5,607 iiiterTU]iiu, I'Mcodes * 72 Inlrlcalii, Kii-odes 379 K. knausil, Eleodes 38,40,67 laminaluni, Einhaphion 4«i7,472 Larva, Eleodes 490 deulipc-s 4%, 497 gigantea 496 laticoUls, Eleodas 234. 270. 2S0, 505 lecontei, Eleodes 217 lecontei, Eleodes 310,311.S21 letcheri, Eleosation of i>\>te see pa^es 509, 510. uViiiVcKSliy Uf ILLINOIS URBANA U. S. NATIONAL MUSEUM BULLETIN NO. 63 PL. 2 M \ .^^ Genital Characters of the Eleooiini. For explanatios of cate sce cages 510, 511. U. S. NATIONAL MUSEUM BULLETIN NO. 63 PL. 3 Genital Characters of the Eleooiini. For explanation of plate see pace 511. 597S0— Bull. 0.-^— OM R4 L'lS i."l/iJ\;A U. S. NATIONAL MUSEUM BULLETIN NO. 63 PL. 4 Genital Characters of the Eleodiini. For explanation of plate see pages 511, 512, 513. U. S. NATIONAL MUSEUM BULLETIN NO. 63 PL. 5 Genital Characters of the Eleodiini. Fo« EXCLANATIOH Of PUATE «EC PAMi 513, 5H. Y Oh ILLINOIS U. S. NATIONAL MUSEUM BULLETIN NO. 63 PL. 6 Comparative and Genital Characters of the Eleodiini and Related Trises. Fo« tiPLANATION OF PLATS SEC MOE 5M. U. S. NATIONAL MUSEUM BULLETIN NO. 63 PL. 7 ^A-i^ iT Topography of the Genital Segments of the Eleooiini. FOW tXPUUOkltOH or PLATE ME PAO£» 514. 515. biiV Jr ILLINOIS U. S. NATIONAL MUSEUM BULLETIN NO. 63 PL. 8 4 /. ' '■ ' — A d " 1 J^0^ t .... iO J ' ^\ ■'-' /.. ^ ,-1 vW^X luli ^^VCbnillK ^■' ^ /. ^Wk « 1 ~D_ *^^^lOL Anatomy of the Eleoomni. Fon OPLAsATios Of Plate tec pagcs 51S, 516. iNOlS URCANA, U. S. NATIONAL MUSEUM BULLETIN NO. 63 PL. 9 Homology of the Genital Segments of the Eleodiini. For txPuutATioN or platc tu mat &t6. )ib U. S. NATIONAL MUSEUM BULLETIN NO. 63 PL. 10 Pronota of the Eleooiini. F0»J e«PLA>i*TIO« Of PLATE tCE PAOt« 516, 517. U. S. NATIONAL MUSEUM BULLETIN NO. 63 PL. 1 1 CDOCDCD Pronota of the Eleodiini. Fo« EXPLASATION Of PLATE S(E PAGES 517, 518. M»78(>— BuU. 63— Oy 36 -;NOiS U. S. NATIONAL MUSEUM BULLETIN NO. 61 PL. 12 Pronota of the Eleodiini. For exPLASATioN or plate tfC paocs 518, 519. ■'NOI^ U. S. NATIONAL MUSEUM BULLETIN NO. 63 PL. 13 EAftLY Stages of the Eleodiini. Fox CXPLAhATION O^ PLATE (CC »*«( 519. \ i KU- //■/I v- w 6^: r .->ie jf /*i "V- --' '