ON THE COLEOPTEROUS INSECTS OF GALAPAGOSISLANDS.
By Martin L. Linell,iAid, IHrhion of Insects.
Tbe general physical features of the Galapagos archipelago havebeen amply described by Darwin, Salvin, Hooker, and more recentlyby Alexander Agassiz,^ and need not be repeated here. The extremepoverty of the insect life of these islands is especially alluded to byMr. Agassi z and particularly illustrated by Dr. Samuel H. Scudder inhis account of the Galapagos Orthoptera.'' The whole number of speciesof this order is 20, including 5 cosmopolitan species. The coleo])terousfauna appears to be relatively equally poor, altliough, as must beexi)ected from any locality, more numerous in species than the Orthop-tera. Charles Darwin, while on the famous Bcaf/le expedition, collected29 species, of which Kev. F. W. Hope^ described one as new. The re-mainder were reported upon by George R. Waterhouse,"* who described22 new species and 3 new genera. Of the remaining species 2 werecosmopolitan and 4 were left as doubtfully identical with species pre-viously known from the American continent. In 1852 the Swedishfrigate Eifaenie touched the islands, and from the Coleoptera obtainedthere Boheman in 1858 described G as new. From that time nntil 1889no further mention was made of the Coleoptera of these islands. Inthat year Dr. L. O. Howard, in his Annotated Catalogue of the InsectsCollected in 1887-88 by U. S. Fish Commission Steamer Albatross,"lists 12 species determined by the writer, but the presumably new onesare iiot described. The Albatross again visited the islands in 1891, and3 species were obtained. Later in the same year Dr. G. Baur, of ClarkUniversity, on a special trip to the islands, collected 21 species, whichhe presented to the U. S. National Museum, as the U. S. Fish Commis-sion had done with the two lots previously mentioned. Although some
' Mr. Linell died May 3, 1897.?Editor. ^Trans. Ent. Soc, Loudon, 1837, p. 130.2Biill. Mus. Comp. Zool., 1892, XXIII, p. 56. 'Ann. Nat. Hist., 1845, XVI, p. 19.3 Idem, 1893, XXV, p. 1. ''Proc. U. S. Nat. Mns., XII, No. 771.Proceedings U. S. Nationa: Museum, Vol. XXI?No. 1 143. 219
250 rnOCEEDINGS of the national MU'^^ECM.of the forms of tlie different collectings are identical, there are now rep-resented in the Mnseum a total of 2S species. P>y careful examinationof tliis material 8 forms prove to be identical with sjjccies collected byBarwin, but none of IJolieman's species have been recognized. Of theremaining 20 species 5 are found to have an extended distribution intropical America, 1 is cosmoi)olitan, and 14 are described as new inthe following pages.In view of the extreme interest attaching to the biology of theseislands, it has been thought advisable to furnish a complete list of the55 coleopterous species so far known to inhabit this archipelago. Thepercentage of apterous forms is very large, as will be seen by the list;and another peculiar feature is that tliey are generally of a smoothersculpture than their congeners of the continent. Of Waterhouse'sspecies tliat have been rediscovered, a more exjdicit description isgiven, and for one of them a new genus is proposed. Two new Brazil-ian Coleoptera attracted attention in the course of the work of com-parison and are characterized in footnotes.
Family CARABIDAE.CALOSOMA GALAPAGEIUM Hope.Caloi'i>ma galapain'mm Hoi'K, Trans. Ent. tSoc. London, 1837, II, p. 130.Form and size of Ci/clirn,s stenostomns, apterous, smooth, and verysh'niug. Head black, impunctate; mandibles jiiceous; labrum andpaJpi ferruginous. Antennae ferruginous, slightly darker outward,/inely rufo-pubescent from the fifth Joint, reaching the elytra to one-fourth the length from the base. Thorax black, aeneous at the base,entirely impunctate, slightly wider than long, subcordate, somewhatwider at apex thah at base; disk feebly convex, not depressed at thesides; median line distinctlj^ impressed; basal foveae rounded, deep,approximate to the sides; base truncate; posterior angles -prolongedand deflexed. Elytra at base slightly wider than the thorax at middle,ovate, one-half longer than broad, dark cupreous green; humerirounded; disk slightly convex, feebly (at the sides and apex obsoletely)punctato-striate; intervals nearly Hat, smooth; the third, seventh, andeleventh with feebly convex, elongate elevations, separated by roundedvery shallow foveae, each fovea with a couple of punctures. Epipleuraand ventral surface reddish brown, smooth. Legs ferruginous; tibiaesparsely and finely spinose, the intermediate ones strongly arcuate(male), expanded at apex, pubescent beneath and prolonged into aspine as long as the spurs; anterior tarsi (male) with the first threejoints strongly dilated and densely spongy beneath, the first .joint cara-panulate, the second widest, quadrate, the third strongly transverse,the fourth short, emarginate, two-thirds as broad as the third, with afew small spines and a trace of sponginess beneath, fifth joint narrow,cylindrical. Posterior coxae oval obtuse.
NO. 1143. COLEOPTERA OF THE GALAPAGOS ISLANDS?LINELL. 251Length, 12,5 unn.; width, 5 mm.One male, collected on Chatham island by Dr. G. I>aur.This is tbe smallest known species of Galosoma and has more theappearaiKiC of a Cychrus. Hope's descrii)tion does not mention tlicsexual characters, and he gives the color as black above and beneath,with the elytral margin \iolaceous. It is not recorded on what partic-ular island Darwin collected it.
'CALOSOMA HO\A^ARDI, new species.Calosoma ? galapagoiim Lineli, (nee. IIoi'E), Aimot. Cut. by L. O. Howard, I'roc.U. 8. Niit. Mus., 18S9, XII, p. lill.Ovate, bluish green above, slightly shining, winged. Flead obso-letely sparsely punctate, slightly strigose at the eyes; labrum and man-dibles black ; palpi piceous. Antennae reaching to about one third thelength of the elytra, piceous at base, the hairy joints brown. Thora.vone-half broader than the head, one-half broader than long, snbcordate,widest before the middle, imperceptibly sinuate behind ; posterior anglesnot prolonged, subacute, forming an acute angle with the humeralmargin of elytra; lateral margin narrowly rellexed; base broadly sinu-ate each side near the angles; disk feebly convex, not depressed at thesides, smooth or obsoletely finely strigose; median line distinctlyimpressed; the transverse basal impression obsolete, more or lesspunctate; basal foveae near the hind angles large, rounded, sparselypunctate. Elytra one-half longer tlian broad, subparallel or slightlywider behind (in the leniale); striae regular, feebly imi)resscd at base,deei)er behind, with small but deep punctures, submarginal striae moreobsolete, margiiuil stria with muricate punctures; intervals of the diskslightly convex, obsoletely transversely rugose toward the sides; thethird, seventh, and eleventh intervals interrupted by numerous smallshallow foveae for their whole length. Ventral surface black, smooth;episterna of prothorax violaceous; sides of metasternuin and first ven-tral with more or less numerous coarse punctures. Posterior trochan-ters oviil, alike in the sexes. Legs black; tibiae finely spinose, theintermediate ones arcuate (slightly in the female), with coarse anddense yellow pubescence along the exterior groove below the middle.Length, 10 to 21 mm.; width, 7.5 to 10.5 mm.Male.?Anterior tarsi with three joints strongly dilated and spongybeneath. Intermediate tibiae strongly arcuate, the apex expanded,with a dense yellow pubescence beneath, and prolonged into a shortobtuse spine.Type.?^o. 1311, U.S.N.M.Two examples from Duncan island and 12 from Chatham island,collected by the Albatross expedition in 1888, and 78 from Charlesisland, collected by the Albatross expeditions in 1888 and 1891; also byDr. G. Baur.
252 ntocEEDiNcis of the national yrrsErM.PTEROSTICHUS CALATHOIDES Waterhousd'.Feronia calathoidrx WATERiiorsE, Ann. Nat. Hist., 1845, XVI, p. 21.J'oecilus caJtiihoidex GEMMiN(iKU .and Hahold, Cat. Col., 1868, 1, p. 300.Elongately ovate, black, smooth, shining, very depressed above.Antennae, labrum, palpi, and legs piceo-rufous. Thorax subquadrate,sides arcnate and slightly convergent before the middle, parallelbehind; posterior angles rectangular, not carinate; disk with themedian line finely impressed and with a single long' basal fovea eachside, equidistant between the middle and the angles, entirely impunc-tate. Elytra at base scarcely broader than thorax, obliquely dilatedfor a short distance and then arena tely narrowed to apex; disk with 9deeply impressed, impuuctate striae; intervals convex, smooth, thesecond broader at base and with a short stria; the third stria with animpressed puncture toward the base, the second with one at the middleand another one toward apex, the eighth with the usual coarse punc-tures. Ventral surface smooth, piceous black. Prosternum roundedat apex; episterna of metathorax twice longer than broad. Male with-out limbriae on the hind tibiae. Female with the elytra subopaque.Wings aborted.Length, 11 mm.; width, 4.5 mm.Two exam[)les from Charles island, collected by the Alhatross expe-dition in 1888, and 3 from Chatham island, collected by Dr. G. Baur.If Chaudoir's genera are accepted, the species would belong to thegenus J>ysi(liiis. The island from which J)arwin obtained it is notrecorded. PLATYNUS GALAPAGOENSIS Waterhouse.Feronia tjalapagoemia Wateuiiouse, Ann. Nat. Hist., 1845, XVI, p. 21.Poecihtx ijalaiHKjomxiH Gemminger and Harold, Cat. Col., 1868, 1, p. 302.Apterous, elongate, depressed, very smooth, black above, ventralsurface and legs rufo-piceous. Antennae ferruginous, with the threebasal joints glabrous. Thorax broad, liat, slightly longer than broad,widest at middle, arcuately narrowed to apex, feebly convergent, nearlyj)arallel behind the middle; side margins narrowly rellexed; posteriorangles rectangular, obtuse at apex, flattened above; disk entirelyimpuuctate, with a long basal fovea on each side nearer to the lateralmargin than to the middle; median line linely impressed; transversebasal impression obsolete. Elytra elongately oval, with rounded humeriand finely impressed smooth striae, the second stria with a puncturebehind the middle, the third with one toward the base; intervals flat,finely alutaceous; apices feebly sinuate, slightly prolonged. Episternaof metathorax somewhat longer than broad. Legs slender, moderatelylong; the anterior tarsi without grooves, the middle and posterior tarsiwith lateral grooves.Length, 11 mm.One female, collected on Chatham island by Dr. G. Baur. On whichisland Darwin collected the species is not recorded.
NO. 1143. COLEOFTERA OF THE GALAFAGOS ISLANDS?LIXELL. 253SCARITES GALAPAGOENSIS, new species.Elongate, i^arallel, couvex, sbining black, apterous. Mentuin nearlytwice broader than long, broadly concave, smootli, acutely carinate atmiddle, with a round fovea at base each side of the carina; the lobesstrongly rounded at the sides with a fine obtuse subiuarginal carina;the tooth broad at base, abruptly narrowed and acute at apex, longerthan the lobes, the margins carinate. Maxillae incurved at apex andacutely mucronate. Mandibles nearly as long as the head, arcuateand acute at apex, bicarinate above, scarcely striate. Antennae piceo-rufous, reaching to the hind angles of the thorax, the basal Joint alittle longer than the following three together, the second to fourthobconical, decreasing in length, the fifth to tenth broader, compressed,densely rufopubescent, slightly longer than broad; the terminal jointoval, comjiressed. Parageuae broad, concave, smooth, emarginate anddentate at apex, the inner margin rounded, not carinate. Eyes promi-nent, truncate behind, and inclosed by the globose tem2)ora. Headsmooth, deeply bisulcate in front. Epistoma slightly striate towardthe sides, bideutate and emarginate at middle, with two small tuber-cles at the emargination; the lateral margin in front of the eyesrounded and less prominent than the eye. Labrum subequally triden-tate with three coarse punctures, the median puncture bisetose, thelateral ones unisetose. Thorax in front scarcely wider than the head,narrowed and feebly rounded to the hind angles, nearly twice broaderthan long; disk convex, smooth, the median and anterior transverselines distinct; anterior margin finely striate; posterior angles dis-tinctly dentate; base pedunculate at middle, the oblique sides beingdistinctly sinuate; a rounded fovea at the base each side of the pedun-cle. Elytra as long as head and thorax including the mandibles, nar-rower than the thorax, slightly dilated at middle and strongly roundedto apex: humeri strongly dentate; disk couvex, deeply striate, striaeimpunctate; intervals smooth, obtusely subcarinate, the third with onepuncture toward apex and the usual apical puncture; basal marginand the ninth interval finely granulate, the latter with a series of punc-turcH. Ventral surface smooth; the episterua of metathorax one-thirdlonger than broad. Ventral segments without imj)ressed basal line,the subterminal ones each with two inmctures at middle, the terminalwith four i^unctures at the margin; the last two segments, with thelateral margin and a connected spot, red, translucent. Legs moderatelystout; the anterior tibiae prolonged at aijex, tridentate in front, theupper tooth very small, the terminal one very long and slender, cur-vate, reaching to the third tarsal joint; no trace of denticles above thethird tooth. Middle tibiae with one spine near apex and with a row ofdenticles, increasing in size from the knee downward. Posteriortibiae slender, without dense fimbriae. Tarsi slender. Claws long,arcuate. Length, 27 mm.; width, 9 mm.%>e.?No. 1312, U.S.N.M.
254 PROCEEDINGS OF THE NATIONAL MUSEUM.Two examples, collected on Cbuthaiii island l)y ])r. (1. Baur. Thespecies appears to be nearest allied to the Brazilian forms of tliecayennensi.s group, but it is apterous, and if intercalated in the tableof Chaudoir's monograph it would be placed near the Mediterraneanspecies S. laevujatuN Fabricius,'SELENOPHORUS GALAPAGOENSIS Waterhouse.Selenophorm galajjatjoensin Watekiiousk, Ann. Nat. Hist., 1845, XVI, p. 22.Oblong oval, feebly convex, winged, above piceous, distinctly aluta-ceous, feebly shining; elytra slightly bronzed. Labrum ferruginous,feebly emarginate. Mandibles smooth, scrobes large. Antennae fer-ruginous, reaching to the humeral angles, the third joint one-halflonger than the second. Thorax broader than long, rounded at thesides, widest before the middle, slightly narrowed to the base; poste-rior angles 6btuse ; apex feebly sinuate near the angles; base broadlyemarginate at middle; disk impunctate, with the median line finelyimpressed, often abbreviated; transverse apical line effaced; basalfoveae feeble. Elytra slightly broader than thorax, basal line slightlysinuate, forming an obtuse angle with the side margin; apices veryfeebly sinuate; disk with fine smooth striae, more deeply impressed atapex, the second, fifth, and seventh with series of small impressedpunctures; the submarginal punctures coarser; subscutellar stria long.Epipleura ot thorax and elytra ferruginous. Ventral surface rufo-piceous, nearly smooth. Prosternum rounded at apex, not margined.
' A very distinct species of IHntifhiix, apparently nndescribed, has been collectedin Hantaicni, Brazil, by ]Mr. Herbert II. Suiitb. It is characterized as follows:DISTICHUS SMITHI, new species.Elongate, parallel, black, shining, smooth above and slightly depressed, winged.Alcutum riignlose wftli distinct submarginal and median carina, the tooth veryshort, obtusely augulate at apex. Paragcnac slightly rugose, marginatc; externally,dce])ly emarginate at ai)ex. Mandibles long, sinuate externally, strongly toothed,not striate above. Antennae ferruginous, submoniliform, reaching the hind anglesof thorax. Head smooth; eyes prominent ; epistoma with a few short striae at thesides; lateral margin in front of the eyes angulate, less prominent than the eye.Thorax one-half broader than long, widest in front, scarcely narrowed and feeblyrounded to the hind angles; base distinctly pedunculate, linely rugose along thesides and in the rounded foveae; hind angles with a small tooth; disk smooth withmedian and apical lines deeply impressed, obsoletely strigose along the ajiical mar-gin. Elytra longer than head and thorax, finely toothed at the humeri, granulatealong the basal and lateral margins; disk deeply striate; striae smooth; intervalsconvex, smooth, the third with six impressed punctures on the outer side. Ventralsurface finely rugosely granulate, smooth along the median line. Abdominal seg-ments with two inincturcs, the terminal segment with four; the basal line on thelast three segments distinct. Anterior tibiae with four denticles above the thirdtooth; the middle tibiae with two spines, the upper one very small, not much differ-ent from the nearest of the denticles above. I'osterior tibiae with five long hairson the ]?osterior margin, not densely rmibriate. l^ength, 23 mm. ; width, 7 mm.Type.?^o. 1313, IJ.S.N.M.Four examples, Santarem, Brazil.
NO. 1143. COLEOPTEBA OF THE GALAPAGOS ISLAXDS-LIXELL. 255Legs short, ferrugiuous. Posterior tarsi with second to fourth jointsslightly longer than wide. Length, 8 mm.; width, 3.5 mm.Five examples, collected on Charles island by the Albatross expedi-tion in 1888. It is not stated on what island Darwin collected it. Thesi)ecies is a true Selenophorus.FERONIA INSULARIS Boheman.Feronia insitlarif Bohemax, Frt-gatteu En (jeni^s Hesa, Zool., L, p. 14.No particular island of habitat is mentioned for any of Bohemau'sspecies. AMBLYGNATHUS OBSCURICORNIS Waterhouse.Ambli/finaihuH obscuricortm Wateruousk, Ann. Nat. Hist., 1845, XVI, p. 22.It is not recorded on what island Darwin collected this insect.NOTAPHUS GALAPAGOENSIS Waterhouse.Notaphus f/alapagoennin Waterhouse, Ann. \at. Hist., 1845, XVI, ji. 23.Collected on James island by Darwin.Family DYTISCIDAE.COPELATUS GALAPAGOENSIS Waterhouse.CopelaluH tinlapagoenH'iH Waterhouse, Ann. Nat. Hist., 1845, XVI, p. 23.No island recorded for Darwin's capture of tliis spccu'.-.Family HYDROPHILIDAE.TROPISTERNUS LATERALIS Fabricius.Hydroiihilua lateralis Fahricius, Syst. Ent., p. 228.
?
Watkrhou.se, Ann. Nat.Hist., 1845, XVI, p. 41.It is not recorded on what island Darwin collected this species whichis widely distributed in America.PHILHYDRUS species.Philhydriis species Waterhouse, Ann. Nat. Hist., 1845, XVI, p. 41.Waterhouse suspects this to be identical with a continental species.No particular island is indicated where Darwin collected it.Family STAPHYLINIDAE.CREOPHILUS species.CreophiUm, new species f Waterhouse, Ann. Nat. Hist., 1845, XVI, p. 26.Collected on Chatham island by Darwin.This is i)robably VreophUus villosus Gravenhorst, introduced fromNorth America.
256 PROCEEDINGS OF THE NATIONAL MUSEUM.Family COCOINKLLIDAE.SCYMNUS GALAPAGOENSIS Waterhouse.Scymnun {lalajxinucnuiti Watkkiioi'se, Ann. Niit. Hist., 1815, XVI, ji. 11.Collected on James island by Darwin.Family*! )EllMESTI DAE.DERMESTES CARNIVORUS Fabricius.
DcriHcutcs caniirunin I'aiskichs, Syst. Eut., {>. 'h>.One example, collected on Chatham island by the Alhafross expedi-tion in 1891. The s])ecies is generally distributed over North andCentral Ameri(;;i. DERMESTES VULPINUS Fabricius.
Deriueslvx rulpiitux Fakuicics, Spec Ins , I, j). (>\.?Waikkiiousk, Ann. Nat.Hist., 1845, XVI, p. 2().Collected on James island by Darwin, It is cosmopolitan.Family ELATERIDAE.PHYSORINUS GALAPAGOENSIS Waterhouse.
rinj.ioriiiKu tjalapa<ioi-ii.sin \Vatkrim)U.SI':, Aun. Nat. Ili.st.. 1815, XVI, p. 25.According to a note by Mr. Ci. C. Champion ' this s[)ecies belongs toAncliastii,s. What island Darwin collected it on is not recorded.HETEROCREPIDIUS PUBERULUS Boheman.lIclerocrepidiiiK jnihcriiliis Hoiikman, Frcj;iitfon EHijcitiex licsii, Zool., 1858, I, p. 66.Family BOSTRYCUIDAE.TETRAPRIOCERA LONGICORNIS Olivier.Tctrdpriocera louiiiioniix Oi.ivikk, Knt., IV, 77, p. 15.One example taken on Indefatigable island by the Albatross expedi-tion in 1888. The species is distributed from southern Florida andWest Indies to Central and South America.AMPHICERUS PUNCTIPENNIS Le Conte.AmphkerKx piiiict'qyeiiuix Lk Contk, Proc. Ac. Nat. Sci, Pliila., 1858, p. 7H.Apate n\MM;ioti Wathiuiousk, Ann. Nat. Hist., 1845, XVI, p. 36.One specimen, taken on southern Albemarle island by Dr. G. Baur,I consider a form of Le Conte's species, of which I have compared
' Biol. Ccntr.-Araer. Col., HI, Pt. 1, p. 385.
NO. 114:!. rOLEOPTEUA OF THE GALAPAGOU ISLANDS?Ll^^ELL. 2blspecimens from the southwestern United States, Mexico, and Vene-zuehi. Tt agrees with an example from Los Angeles, California, in hav-ing granulate tubercles on the disk of thorax and in wanting the usualelevations on the declivity of elytra. The only ditferenccj that mightbe considered specific is that the a[)ical margin of the elytra is notraised and not recurved to connect with the convex submarginalinterval, but this margin is variable in development in individualsfrom the same locality. Darwin collected his specimens on a deadmimosa tree on Chatham island.'
Family CLEKIDAK.NECROBIA RUFIPES De Geer.Cori/nelvn rnjipoi I)c Geer, Mem., \ , ]>. 1()5.? \VATi;i;ii()rsi:, Ann. Nat. Hist., ISlf),XVI, p.2?.Collected on James island l)y Darwin. It is cosmopolitan.
Family TAHSALIDAK.NELEUS TLASCALA Percheron.Nehun tluxculii I'kiicmkuox, Moii. de.s J'a.ssale8, VKi'>, p. I."?.One example was collected on Chatham island by the Albatross expe-dition in 1891. The species is distributed from Lower California toParaguay. It has ample wings.
' The following apparently undescribed epecit^.s of this geuiia has been collected hiC'hapada, Brazil, by Mr. Herbert II. Smith :AMPHICERUS FRONTALIS, nev/ species.Cylindrical, robust, piceoiis black, shining, glalirous above. Antennae ferrngin-oiis, 8ec(md joint globose, the following live together as long as the club, graduallywider and more acute on tlie inner side; the club strongly compressed, eighth andninth joints transverse, tenth a little longer than wide. Mandibles black, polished,with the scrobes Hat, punctate, short and broad. Palpi rufous, densely ciliate.Head transversely rugosi^ beneath, densely longitudinally strigose on the vertex;front shining and finely punctate on the sides, strigose near the c^yes; on the middlea large, oval, oi?a(jue space, densely covered with small very acute tubercles. Lab-rum densely covered with yellow hairs. Clypeus dark ferruginous, separated fromthe front by a deep arcuate impression. Kpistoma not separated. Eyes very large.Thorax quailrate v.ith conical hind angles; the anterior declivity without hooks,rather finely granulate; and rugose on the summit, each side with i)rominent acutetubercles; the iutiexcd sides densely rugosely punctate; disk with a large triangu-lar smooth space at middle, and ])osteriorly reticulatcly j)unctate. Elytra ratherfinely punctate ; humeri prominent, nearly smooth ; posterior declivity more coarsely,rugosely punctate; suture scarcely elevated; apex distincly margined. Ventral sur-face finely, densely punctulatc, with yellowish sericeous pubescence; metasternnmsparsely punctiil.ite, nearly glabrous. Legs piceous, finely puuctulate and pubes-cent. Length, 13 mm. ; width, 1.5 mm.Type.?'So. VMi, U.S.N. M.Proc. N. M. vol. xxi 17
268 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxi.
Family SCARABAEIDAE.COPRIS LUGUBRIS Boheman.Copris Ingabrin BoiiEMAN, Frcgattcii Euijcnie^ti Kcsa, Zool., IS.^S, I, p. 42.ORYCTES GALAPAGOENSIS Waterhouse.
Orycie>i galapagoenxia Waterhouse, Ann. Nat. llist., 1S45, XVI, \}. 2().One female was collected on Chatham island by the Albatross ex\)edition in 1888, and si.K males were taken by Dr. G. Baur on the sameisland. It is a light-bvown shining insect, wider behind, resemblingin form the Sonth American Bothynus ascanius Kirby. The i)unctua-tion is sparse and fine and the sutural stria distinct. The ventralsurface is moderately hairy. Wings are present, but seem to be some-what aborted. The length of the female is 23 mm., of the males 16 to19 mm. The generic characters are very different from Oryctcs Illiger,all the species of which inhabit the Old World. It should form a newgenus in the group Pentedontides of Lacordaire, and the following nameis proposed for it:PSEUDORYCTES, new genus.Mentum large, elongate, convex, arcuately narrowed to apex. Man-dibles prominent, with the exterior n)argin entire, strongly rounded.Antennae ten jointed, club small in both sexes. Head transverselydepressed between the eyes, the canthus angulate and i)rominent.Clypeal suture raised into an obtuse bisinuate ridge, more prominent atmiddle and at the side margin. Clypeus broader than long, subtrian-gular, sinuate toward apex (in the male slightly longer and moresinuate than in the femahi); apical margin retlexed, obsoletely emargi-nate. Thorax transverse, very convex, deeply emarginate at apex,strongly rounded at the sides, without any impressions in either sex;the posterior angles obtuse in the female, rounded in the male. Strid-ulating organs forming two longitudinal bands on the middle of pro-pygidium, parallel in the female, convergent to apex in the male. Theapical margin of this segment is feebly rounded in the female, in themale prolonged in an acute triangle. Pygidium convex and entirelyglabrous in the male, in the female with a slight rounded impression atthe middle and the margin ciliate. Prosternum with a conical protu-berance behind the coxae. Legs moderately stout, the anterior tibiaequadridentate in the female, in the male trldeutate, with tlie marginabove the teeth flattened and rounded. Posterior tibae with two obliqueridges, the apex moderately expanded, truncate and fimbriate. Poste-rior metatarsus triangular, scarcely longer than broad. Claws simple.Type.?Oryctes gakqmyoensis Waterhouse.
No.lliiJ. COLEOl'TEliA OF THE GALAPAGOS ISLANDS?LINPLL. 259Family CERAMBYCIDAE.MALLODON MOLARIUM Bates.Mallodiin molavium ]5ates, Biol. Centr.-Amer. Col., 1879, V, p. 9.The Albatross expeditiou iu 1888 collected on Cluirles, Chatham, andDuncan islands seventeen examples of this large rrionid, which is dis-tributed from Lower California through Mexico and Central Americato Panama. The species is ami^ly winged.ACHRYSON GALAPAGOENSIS, new species.Cylindrical, luteous, opaque, sparsely clothed with short jjale pubes-cence. Head densely punctate, two Sjiots on the front and one on thevertix, black. Antennae slender, in the male nearly twice the lengthof the body, in the female slightly passing the apex of elytra. Thoraxglobose, much more strongly so in the female, narrowly constricted ateach end, with elongate black spots, six at apex and six at base; thedorsal spots sometimes connected to longitudinal stripes; in otherspecimens the spots are wanting, except the dorsal pair at base andthe lateral pair at apex; apical margin truncate, basal margin slightlybisinuate; disk with a small smooth space at middle, the punctuationdiflerent in the sexes; the female is densely, rugosely punctate, themale has the black spats very tinely and densely punctulate withsparse granules, the rufous parts slightly rugosely punctate. Scutel-lem semioval with dense yellowish hairs. Elytia conjointly rounded atapex, the male with distinct but not very long sutural spines, thefemale with only acute angles; disk densely rugosely punctate withblack spots as follows: A basal spot each side in the depression insidethe humerus, a circumscutellar spot and on each elytron six elongatespots, arranged in two transverse curved bands, one before and theother one behind the middle; the lateral spots of these bands are some-times wanting but the central spots on each elytron are generallyconnected and prolonged toward apex. Metasternum, abdomen, andlegs sparsely and finely nuiricately punctate. Wings ample. Length,16 to 20 mm.Type.?^o. 1315, U.S.:N^.M.Two males and two females, collected on Chatham island by Dr. G.Baur. EBURIA LANIGERA, new species.Female.?Elongate, somewhat depressed, brownish testaceous, denselyclothed with long appressed grayish hairs. Antennae slightly longerthan the body, with only slight traces of Hying hairs; scape one-fourthshorter than third joint, feebly clavate, slightly compressed but notflattened, finely punctate; third to eleventh joints filiform, slightlydecreasing in length. Thorax scarcely longer than broad, strongly
260 ? l'i;<KKi:i)ISr.s OF rilE X.IT/OXAL MVSKVM. vol.. XXI.narrowed in front, sparsely rugosely j)unctate; lateral spines moderate,conical, acute; lateral tubercles in front small, Hattcncd, black, not atall iHoiiiincnt; dorsal tuber(iles small, conical, black. lOlytra depressedalon^^ tlie suture, each with two pairs of elevated, yellow, linear spots,surrounded l)y obscuie color, the l)asal jjair.well separatfMl, the e.xteriortwice the interior four times longer than broa<l; the posterior pair ofspots are appro.vimate, the exterior one twice longer. There are tracesof costae behind the i)Osteiior sjmts. The basal half of the elytra andthe dark spots suirounding the posterior ivory spots are punctate butnot granulate, the sides and apex are obsoletely i)unctulate. Theelytral ai)ices are emarginate with short subequal spines. Legs slender,the middle and posterior femora bispinose, the si)ines short, the interiorones slightl.>' longer. The posterior femora reaching to apex of elytra.Length, 20 mm.Tiipv.?l^o. i;31C, U.S.N.IVI.One s])ecimen, collected on Charles island by the yUfrairo** expedi-tion in 1888. EBURIA BAURI, new species.Male.?J<jlongate, slightly depressed, ferruginous, sparsely clothedwith a short, recumbent i)ubescence. Ajitennae twice longer than thebody, the four basal joints densely rugose and with long hairs on allsides; the outer Joints fimbriate with long hairs, finely punctulate,canaliculately impressed, beginning from the apex of the fifth joint;scape feebly clavate, scarcely more than half as long as the third joint;the terminal joint one third longer than tenth and curvate. Thoraxtransverse, densely rugose; lateral si)ines small, snbconical; tubercleson the sides in front obtuse, not prominent; dorsal tubercles black,small, rounded. Elytra with two pairs of small yellow elevated spots,surrounded by "black, all well separated; the basal i)air largest, theinner one somewhat shorter; the discal pair very small, the inner onealmost punctiform; punctuation moderately coarse at base, not dift'er-ent on the black marks, gradually finer toward apex, the intervals veryfinely rugosely granulate; apices acuminate and spinose at middle,without sutural spines. Legs moderately stout, femora not spinose,the posterior pair very far fioin reaching the ai)ices of elytra. Length,22 mm.Type.?y^o. 1317, U.8.N.M. Two examples, collected on Chathamisland by Dr. G. Baur.Female.?Color as in the male. Antennae not rugose, somewhatlonger than the body, the scape two-thirds the length of the thirdjoint, distinctly flat on the anterior face; outer joints compressed.Head and thorax with longer pubescence and long, erect hairs inter-mixed. Thorax somewhat narrowed at apex, scarcely rugose, thespines and tubercles larger, all black, l-^lytra more convex, muricately])unctate, gradually more finely toward apex; the ivory sjjots muchlarger, more distinctly surrounded with black, the inner one of the
No.iUS. COLEOI'TEItA OF TJTIC GA LAI'.lfrOS IS[,AXI)S?LINELL. 261basal [lair iiiucIj laij;t*r than tlie exterior one; apices trun<;ate, withlong spines, the sutuial spine half as long" as the exterioi" one. Middleand posterior femora with a long apical spine on the inner side.Length, 10 to 35 mm.Type.?^o. 1318, U.S.N.M.Three specimens, collected on Chatham island by Dr. (I. Banr.EBURIA AMABILIS Boheman.Eburia amabilin MonKMAX, l-regatteu Enfjenir\ JJesa, Zodl., 1x58, I, p. 151.Described by Koheman as having the thorax one-half longer thanbroad and "the basal ivory spots of elytra connected at apex. Thelength is given as 13 mm.ACANTHODERES GALAPAGOENSIS, new species.Snbtrigonal, moderately convex, brownish, covered with a fineashy-gray pubescence and maculate with lighter and darker brown.Antennae passing the body by the last three joints, annulated withdark brown, the third to eleventh joints filiform, the third and fourthtogether as long as the four following joints together; the terminaljoints sparsely (;iliate in the male. Front sparsely punctate. Eyescoarsely granulat<'. Thorax with narrow median ciirina, dorsal tuber-cles obtusely conical, lateral tubercles large, acute; intervals andmargins with sparse, coarse and deep punctures. Hides of scutellumbrown. Elytra narrowed to apex, the suture and maigins with brownspots; two dark-brown, strongly-angulate, transverse bands beiiindthe middle; tlie centrobasal ridges feebly raised at the base, pro-longed in an obtuse flexuous carina toward apex; the basal halfsparsely covered with granules, each of which has a small puncturebehind, the apical half nearly smooth; apices emarginate, the outerangle with a short spine. Prosternum regularly arcuate, feeblycanaliculate. Mesosternum Hat, without tubercles, veitical in front.Femora moderately clavate. Tibiae biannulate with brown, theanterior ones not dilated nor compressed. Anterior tarsi moderatelydilated in the male, fringed with black hairs. Posterior metatarsusvery long and slender, as long as the three following joints together.Length, 14 mm. (male) to 10 mm. (female).Type.?1^0. 1310, U.S.N.M.One male and one female, collected on Chatham island by Dr.C. Baur.The species resembles much the Brazilian yl. lateralis Bates in form,structure, and coloration, but the fasciate elytra and the much longerimstcrior metatarsus will at once disfingiiish it.
262 I'lKKEKhixas or riir: saiiosm. mi s/:i m.
Kainily (Jll K' VSOMEIJDAE.HALTICA GALAPAGOENSIS Waterhouse.J/allicn f/(ihiii(i(i()< >inin Watkkikh'sk, Aim. Nsil. lliHfc., 181."), X \'I, ]?. 3i).CollecUMl l>y Darwin on Olisiilcs JKland,
Fiunily TION lOFiltlONI DA lO.Genus STOMION.Slomion Watkiuiochk, Ann. Nii( . HiHfc., 1H15, XVI, )?. 27.A geniiH peculiar to this arcliipelaji'o. It i.s allied to the ('alifoniiangenus I^Jmmeiiastus Motschulsky, Imt the intercoxal process of abdomenis Inoiid and tlie tarsi arc finely spinosc l)cii<*atli. 'I'licy are ai)terouswitli liic (^ly(l?:^, coniiiitc. Several ('losely ;illi<'(l species o(;cur.STOMION CARINIPKNNK, new species.Oblong', o])ai|ue, black above, riilbpi(;eous b(uieatii, aiiteniuu! andlegs rufous. Thoiwx densely, rather coarsely, imnctate, scarcely nar-rowed in (Vont, sides nearly ]>arallel. I<ilytra at base broader thanthorax: striae deep, coarsely j?nn<'tate; intervals obtusely (jariuatewith scattered minute punctures. L<Miglli, S to \) mm.Ti/pr.?NiK l.'{20, II.S.N.M.ICight speiMincns from (Jliailes island, collected by Dr. (i. I>aur.STOMION GALAPAGOENSE Waterhouse.Slomion (/<il<i]i(ifioeusr \Va TKUMOc; K, Ann. Nat. IliHf,. ]X'\5. \\'I, |). 29.Oval, oi)a(|uej j)iceou.s black above, ventral surface, antennae andlegs rufo])iceous. Tlioiax l(^ss <lensely, not strongly, punctate, veryshort, distinctly narrowed to a])ex; sides rounded. IClytra at base; notbroader than thorax; striae deep, coarsely but not closely ])unctate;intcivals conv<!x l)nt not eaiiiiate, obsoletely transversely rugulose,Sparsely minutely i)iinctulatc. Lengtli, 8 to 10.5 mm.Seven exam])lcs, collected on Chatham island (six by Allxitrossex])edition, 1888, and one by Dr. (J. l>anr) hav<^ above-menlionedrelative characters, and agree tolerably well with Walerlion.se'sdesci'ij)tion. 'flic island where Dai win eollec^ted his specimens is notrecord ?m1. STOMION PICEUM, new species.Oval, opa(|Uc, piceous above, ventral surface, antennae and lejisrufopiccous. Tiiorax densely, more strongly, ]?unctatc, very short,distinctly narrowed at apex; sides rounded. Elytra at base notbroader than thorax; striae feebly imjjressed, finely punctate; inter-vals broad, fceldy convex, distinctly imnciate. Length, 8.5 to 11 mm,7'i/j?'.?No. 1321, II.S.N.M.
NO. ui.'i. CO I. IK) I'll: I!A OF Tin: r.AL.H'AOOS ISLANDS?LINELL. 263Sixteoii .spccirnciiH, collected on ("liatliaiii islaiul, (twelv<; by AlhatroHScxpcdilioii in 1<S<S8 and fonr hy \)v. G. Banrj slunv some variation iuH( iiljitnrc, but are ])robably one species, distinct from t lie previous form,although very closely allied.STOMION BAURI, new species.Oblonu', snbcylindrical, somewhat shininj^, bla(;k above, ventralsurface and legs ]?iccous, ant<Minac iiifous. Thorax (piadratc, stronglyconvex, not narrowed at a|)ex, finely and moderately densely ])unctate;sides l)roadIy rounded. I'jjytra at base scarcely broader than tliorax;liumcri a<',ute; striae fe(!bly imjiressed, very hncly puncMalc; intiuvalsfeebly convex, obsoletely minutely imnctate. Male with mcntum(hmsely rufovillo86. Length, 7 to -S mm.Tjipe.?^o. i;'?22, IJ.S.N.M.Three exam|)les, colle(;ted (mi southern Albemarle island by Dr. i\.Haur. The species is very distinct by its form.STOMION HELOPIOIDES Waterhouse.Slomion hdojiioidex Watkiuujusk, Ann. Nat. Hist., 1KI.">, XVI, p. '.iO.Described as having the thorax transverse, not narrowed in front,the elytral striae not strongly punctate and the intervals flat. Size, (? to7 mm. No island is iccorded where Darwin (;oll('ct<'d this or the nextspecies. STOMION LAEVIGATUM Waterhouse.Slomion hui if/alum Wai kkiioisi:, Ann. Nat. Hist., lsl.5, XVI, ji. 150.Described as having the elytra smooth.Gonus AMMOPHORUS Gu^rin de Mf^neville.Aiiiviopliiintx (ivf.uis, Voy. (!o(|iiiIl() Krit., 18.'{(), II, p. 'M.A genus allied to J'Jtdahu, from California, differing in the cylindricalantennae with the last Joint truncate: Species are kiujwn from Peru,Chile, Hawaiian Islands ( ?), and Galapagos Archipelago.AMMOPHORUS GALAPAGOENSIS Waterhouse.Ammo})horun f/alapaifoeniiiH WAiKunorsK, Ann. Nat. IliHt., 1845, XN'I, p. 150.Des<Mibed as having tlui head and thorax longitudinally strigose, thelatter with acute front angl(;s and nearly straight hind angles; theelytra with eight sulci and e(|ual intervals, the suture raised. It wascollected on (Chatham island by Daiwin.AMMOPHORUS BIFOVEATUS Waterhouse.AvimoplioriiH hiforeatuK Watkkmoisk, Ann. Nat. Hist., ISI.'j, XVI, p. 31.Described as having the thorax rather finely punctured, the sidessuddenly and equally constricted before and behind with the angles
2G4 rnocEEDixcs of the n.itiox.u. misevm. v..i.. xm.
a<!iite, the posterior ones proiiiiiioiit, IIm' disk with t\v(? sluillow grooveson llio sides and nninerous l<)n;.',itndiniil rui;;!.', two of wiiidi on Miemedian lino arc more conspieuons and sei)aiated by a narrow I'idfje.TIio i)nn(tnro,8 of tlie elytral striae arc closely placed. It was collectedon .larnes island Ity Darwin.AMMOPHORUS CAROLI, new species.I'iceous black, feebly shining-, antennae, inontli and ventral snrlacernl'opiceons, l('<;s rulbiis. Head and MM>rax coarsely and densely bntnot conllnently pnnctate, the latter broader than lonj;', distinctly nar-rowed behind; the sides irrej^ularly rounded, only (constricted at thebase; aut(Mi()r aiifjli's rcctan<;nlar; posterior anjjles acnte, laterallypi'oniinent ; disk on each side with one disical and three marj;inal shal-low Ibveae. I'^Iytra not broader than thorax, regularly ovate; humeraltooth distinct; striae nine, dee])ly impressed, with larjje, rounded,deeply impressed punctures, separate<l by at least, their own width;intervals ecjual, narrow, acute, except the one nearest the suture, whichis broader and moi-e obtuse; the sutural edfj^es scarcely raised. Thoraxbeneath veiy coarscily, irrejj^nlarly punctate. Abdomen less coarselypunctate, the last I wo se<iin(Mits finely and sparsely punctulatc. W'in^swantinji' (as probably in all s|)ecies of liiis ji'enus). Leng'th, T).."") mmTi/pc.?'^r). L'iL'i, IJ.S.N.M.Onecxanipic, collected onC'harles island by the . I //>rf /row expeditionin ISSS. AMMOPHORUS OBSCURUS Watcrhouse.
Aiiimopliornn itlmciiriiH W a i iciMHH'si:, Ann. N;i(.. Hist.. ISITi, ,\ \'l, p. ;{2.l)escril)ed as black, obscure, with piceous antennae and lejjs; headand thorax ru^ioseiy punctate, the latter nai'rowwith thean^les pronn-nent; the elytra iia\'e the suture Hat and the i)unctures of the striaetransverse. What island Darwin collecte<l it on is not recorded.A specimen collected on S(Mithern Albemarle island by Dr. (1. Ilauragrees nearly with this description, but may jtrove to 1m^ a. ditlenuitsi)ecies. The head and thorax are distiiu^tly alutaceous, tlu' formerliiu'ly punctate in front, more strongly behind, the punctures not conlluent ; the thorax is l<mj;iludinally stii^ose, but the punctur?>s are snmlland well separated.Gonus PEDONOECES Wat.opli(-.use.
I'cdoiiorccs WAi'i'.iniocsic, Aiin.Niii. IliHt., ISir., X\'I,p.;{;?.rrssitriinuiiii ItoiiKMAN, l*'io.uiit.trii Kiniciiii's liinn, Zool., 1S,')S, 1, j). !?1 .Forms of tlH> j^roup liUtpst'ntl^ clo.sely allied to the C-aliforuian ?ienusNotihius Lo Conto, by the (piadrauf^ular intorcoxal process and theapterous body.
coi.EoiTKn.i OF riii: <i.ii..tr.i(;(>s is/,.t\ns?/j\i<:rj,. ^fif)PEDONOECES GALAPAGOENSIS Watcrhouse.
I'nlnvoicrK iidhtixKioetiHtx \V ATi'.itiiorsK, Ann. N:il. IliHl., IHlfi, X V I, p. IfH.h?^s<',ril)('(l !is li;iviiij;' IIm^ tlioiiix drnscly piiiicl iiicil ;iii<l Mic clytraliiilcrviil.s simply convex :iii(l jiliibroiis. N() |?;irl iciiljir islMiid of li;il>iliiliis ir.cori 1(^(1. PEDONOECES COSTATUS Watcrhouse.
rt'ddunrrin viixtdlux W AiiiMiorHK, Ann. Nai. IliHt., lHir>, X\I, j). liH.DeHciihed sih liavnifif Mic i)iinotniition of thorax <ron(lnoiif, (brmiiif^- Ionftilndinal nari'ow lidfics and (li(ioIytral intorvals altornatcly coslalc. Jtwas coliciclrd on -lajnes island by Darwin.PEDONOECES MOKIO Bohcir.an.
Ti Hudioiiriiui iiiorio Hon i'..man. I'''r?i;(iit,li'n /uificiiicH l?<>Hii, 'Atutl., is.'iS, I, p. !)'_'.A(rcoi-din,ii' to tiic. dcsi-riplion, tliis lias llic. thorax drnscly a-nd linclypiinclatc and the clytrsil iiitcrvjils caiiiia.((^PEDONOECES PUBESCENS Walerhousc.
I'vdiiiiiiccrH inilicniriiH \Va ri'.iniou.si:, Ann. Nut,. Ili.sl., |Kir?, X \'I. ]>. :!(!.Acc,or<linj;' to the d(?scription, this spcc,i(\s also has I he thorax denselypnnctnlale, hnl theclylral int,crvals conv<'x and pnhesccnt.PEDONOECES BAUKl. new specie;
I'nonjj;a.te., ]KiriilleI, d<'pre.ss<Ml, suliopa(|ne, pieeons; antennae lenuf;inoMs, slender, j,na(liially, not stiorifj^ly, elavate. Heart and thorax<listinetly aliitaeeoiis, sparsely an<l (Inely pnnctuhite. StipcTior poi'tionof (\ye ratiier larye, rounded. {Sid<'s of front areiiale. 'I'liorax l)roa.d?'rtliaii loii^, r(^j;ularly hut f(Mihly convex, <'niar^inato at apex; Hides notciliate, parallel from the. base, rounded and sli<4;ht!y eonvei'^(Uit anteriorly; the aiif^Ies sli{>htly jjiomiiient but obtuse; base linely marj-ineil,distinctly sinnale at the sides; basal fov(^a(^ (eeble. lOIytra notbroadei-than thorax; stria<^ fe<^l>ly impress4'(l with distant deep loundiMl piinctares; intervals convex, not carinate, alutaeeouH and sparsely pnnetiilate, swollen and sonu^whai iri(^<4nlar on (he i)osterior d(M-iivity, sparselypulx^seent at the sides. I;(^;.;s obscmrcly lerrn^inons; a,n((Mior tibiae,slendei-, slightly c()mpressed; laisi not, dilaic*!. I>ast v<Milral segmentllatlened at middle, aj>e,x with a, small ronn<led ema-rj^i nation. I;eti^th,7.5 mm.Tj/pr.?No. i;{LM, n.H.N.M.One nude specimen, <'olhu',t(Ml on Ohatharn island l>y Dr. (1. Ihtiir,Dilfers from all tiie pie(;edin;;- species by the- sparsely pniietulat<? lieartand thorax.
266 I'BocEEDi^as of the national museum.GNATHOCERUS CORNUTUS Fabricius.
Trof/osita cornutu Fahhicii'S, Eut. Syst. SnppL, p. 51.One example of this cosmopolitan species was collected on southernAlbemarle island by Dr. (I. Baur.PHALERIA MANICATA Boheman.Phahria manicata Boiikman, Fiet,':itteu FAujeme's Kesa, Zool., 1,S58, T, p. 92.
Family CISTELIDAE.LOBOPODA GALAPAGOENSIS, new species.Female.?Elongate, snbfasitorm, browiiisli piceous, feebly shining,sparsely pubescent. Head moderately finely, not densely, punctate;eyes large, moderately widely separated. Thorax nearly twice widerthan long, rather finely, not densely, punctate, obsoletely canaliculate;sides scarcely sinuate, feebly convergent; anterior angles stronglyrounded, posterior angles somewhat acute; base deeply bisinuate; basalfoveae rounded, deep. Scutellum transverse, punctate, subtruncate atapex. Elytra long, wide at the base, narrowed from a little beyondthe humeri, deeply striate; striae very closely crenately punctate;intervals nearly flat, sparsely muricately punctate; apices acute.Ventral surface darker piceous, sparsely punctulate. Legs slender,femora piceous, tibiae, tarsi, and antennae ferruginous. Penultimatejoint of anterior and middle tarsi shortly lobed. Prosternum abruptlydeclivous behind. Mesosteruum oblique and emarginate in front.Length, 10 mm.Type.?^o. 1325, U.S.N.M.Two females, collected on Charles island by the Albatross expeditionin 1888. Family OEDEMEKIDAE.OXACIS GALAPAGOENSIS, new species.Elongate, parallel, pale testaceous, feebly shining, sparsely andfinely pubescent. Head short, finely punctate, with a fuscous stripeon the vertex. Antennae eleven jointed, inserted close to the eyes,scarcely longer than half the body; second joint verj^ short, last jointnot constricted. Eyes grayish black, very large, rounded, feebly emar-ginate. Mandibles simi)le, very acute, the apical half black. Maxil-lary palpi with last joint one-half longer than the penultimate, widestat middle, the apical side a little longer than the inner and slightlyrounded. Labial palpi with last joint ieebly dilated, the apical marginrounded. Thorax as wide as long, widest near the apex, obliquelynarrowed to the base, finely rugosely punctate, with a median strij^eand a marginal spot each side, infuscate. Elytra slightly narrowed to
NO. 1143. COLEOPTERA OF THE GALAPAGOS ISLANDS?LINELL. 267apex, finely rugosely punctate, obsoletely costate; a broad band I'rorahumerus to apex and a short stripe near the scutellum infuscate.Ventral surface finely rugose; the last segments infuscate at the sides.Legs slender, pale. All tibiae with two spurs. Tarsi with penultimatejoint slightly dilated and spongy beneath. Claws toothed at base.Length, 11 mm.Tyx^e.?^o. 1326, U.S.N.M.Three examples, collected on Chatham island by Dr. G. Baur. Thespecies resembles Alloxacis dorsalis Melsheimer, from eastern NorthAmerica, but both mandibles are simple.
Family OTIORKHYNCHIDAE.OTIORRHYNCHUS CUNEIFORMIS Waterhouse.Otiorrlnjnchux cnneiformix Wateuhouse, Aim. Niit. Hist., 184;"). XVI, ]). 38.Collected on Charles island by Darwin.Genus PANTOMORUS Schoenherr.The following species agrees in most characters with Pantoniorus asamended by Dr. Sharp,' and may be temporarily listed under thatgenus. The antennae are moderately slender, scajje slightly passingthe eye, second joint of funicle nearl}^ twice as long as first, club sub-fnsiform, acute at apex, llostram flat above, feebly emarginate atapex, as long as the head, with a deep median channel from its middleto the vertex. Mandibles with distinct scar, situated on a conical pro-tuberance. Scrobes terminal, visible from above, very deep; arcuatelydeflexed at a distance from the eye; the acute ridge limiting themabove continued straight to the upper margin of the eye. Thoraxtransversely globose, strongly constricted at apex, without ocular lobesor fimbriae; base less constricted, bisinuate, much more strongly in themale. Scutellum scarcely visible, vertical. P^lytra with distinct butobtuse humeri, Avidest behind the middle; the base of each separatelyrounded, feebly in the female, more strongly in the male with the mar-gin reflexed each side of the scutellum; disk very convex with tenentire striae of coarse punctures. Wings partially developed. Mentuinlarge, concave. Front coxae very large, contiguous. Middle coxaenarrowly separated. Epimera of mesothorax moderately large. Meta-sternum short, the episterna in front angulate each side. Intercoxalprocess of abdomen very broad, the first suture angulate at middle,the second segment longer than third and fourth together. Legs long,especially in the male, the intermediate ones the shortest; femoraincrassate at middle; anterior tibiae prolonged, strongly denticulatewithin, arcuate toward apex, strongly mucronate; intermediate tibiaesimple in the female, slightly arcuate and denticulate in the male and
' Bioi. Centr.-Amer. Coleopt., IV, Pt. 3, p. 153.
2f;8 i'ii<ku<:eihn<:s of tiik x.rnoN.iL miskiim. vm.. xxi.
willi iisiiiiill iiiiKTo. I'oHtciior jumI iniddlo, tibiiir hiiiiiiiiiti'i sit, iijm'x wiMiliir^M^ sinooMi iirtic-iiliir Hiirfac-c; corbels of tli?'- poHU'.iioi' piiir closed,liisiConn, scaly. Tarsi iiiodiuatcly dihih'd, tlic. lirsl Joint a littlo lonj;crMian the sec(Mid, sliuliMy incrassale in l.lie male. Olaws divery-en(.PAN rOMORUS GAI.APAGOENSIS, new species.IMccons black, lecbly sliininj;-. sparsely clothed with grayish andbrown aj)|>ressed hairs, that, are easily abracb'd. b'ostrnin rn-^osely]?nnclni'ed, more stri;;(?se at, the sides. Head and thorax acicnlate,(inely pnnctate and somewhat scabrons, the hilUw mnch larjjer in themale. Hides of thorax beneath with <l<!nser hairs, the hairs scale likoin the lemah^ Lenj^th, H) to lU unii.Type.?lfio. i;{27, U.S.N.M.Orjo nnilc and Ibnr leniah^s from (vhatham ishuid (three collect,ed bytlio yl//m//'o.s'.s' expedition in I SSS and'two by Dr. (5. iiaiir).ANCHONUS GALAPAGOKNSIS Watcrhouse.
Atirhoiiiis fidlaixii/oniNin \V ai kkiiousk, Ann. NM. lliHt,., IKIT), .\V1, p. ;{!t.C/olleelcd on .lames island by Darwin.
ViunUy S(H)LVTIDAIO.A single specimen, iinrorliinati'l.N withoni elytra, taken on (-haih'sisland by Dr. (1. llaiir. 11 belongs in the j;ronp ll.\lnrj;i, bnt Inis notbeen identiilied with certainly.
I'^innly ANTll Itl 151 DAl'l.OI^MISCUS VARIKGATUS Waterhouse.
OriiiiHciin rariiiitiliis W'a ri;i:ii<)rsi';, Aim. Niit. IliHt.., IHlf), XVI, ]>. 157.(Collected on (Jhailes island by Darwin.