P yy T3>::$> :> » ^ ^ ^:3o >^ s> > r:>ts> "> >> :> ^ ^> ~:>:' > :> ^^ » 3:7 t> ^) O 7S> "~:S: > ^ . o ^o :^ * > ^ -e. ->"? > "> .-> L>J> 25 \ ^ ' > J>> ^S. * '^ > •):>j > i S> . '^j S> y" :>. ^ aiD g>"r> ^>>::3& ^^ ^ , ■ ^ip ' ^ix> ■z>.^^ :;:2>.: ^5>:> » 3^^ >>>CS>_> ■-^IP Z^Z> Z» ^^^^ S3 ^^ >» > > » > > "> Zx3»- ' 5> ■ :>^-^ ' . y'^D^::^': _ :> ^ > > - - :» ^ 3 • ^^ > :> . ^ ^^^ z:»^> o> i:*. T^_ :r- D > xa; ^ ^ - l:>^ 'Zzyjs>^ w> ^ ^^^zz> z> zyz > >:2> > xc z> :> 3>3 :>>' ^^^S> 3>:^. -^■w> WHITNEY LIBRARY, HARVARD UNIVERSITY THE GIFT OF J. D. WHITNEY, Stu)\ijis Hooper Professor MUSEUM OF COMPARATIVE ZOOLOGY J3> '^39 ~:3> "^> ^> >■ •:::^5i):x> > '355i>5 o ->: 2» 5 :3>:y> 2» ^3»^2> > ^ -> > :s> r3i> ^ ■>■ > > 3»2) 3 > ? Z>5i>J5: ->.- ■ > > '-'>x'>^:> > 5 .>r -■j>:xs":s>y 3> :>> ^>_ ^^ .ijf^^ zzjn:» :.:>"2s:>j3) s» z:m>z> ^i^^zz:. z> zx> z^^ ;32>-» ^^r^**" 3.^g »^^:^>^ 3;:» 35^ T3e» > ^r3E> ^: ■"3: 3> :>:>:::3o3:^ ,:£> 3>;f- "' :3':3>'^sBfc. 3> .i'»3». ■>•s>'"^3^ ;;2»^^S» 3» jv);3i- > 5T3e> 3 J^:)!^ 3?> ■)>3> Z!> 'r»:s> 5v, 3i>-3. 3^ •■'> .'■> ":3B»-:> Z3> "3»- ■ •-> > ,Z1B> >" D> 3> ypD z> : i> ^!*'Z3Bi ;::3> ^ zs '7' PKOCEEDINGS AMERICAN PHILOSOPinCAL SOCIETY HELD AT PHILADELPHIA PROMOTING USEFUL KNOWLEDGE Vol. XV. DECEMBER mQ. No. 96. PHILADELPHIA: PRINTED FOR THE SOCIETY BY M'GALIiA & STAVELY. indi- cating its use as an accessory organ of generation, for making the perfora- tion in Avhich the egg is subsequently placed by the soft ovipositor, and pushed down by the beak. Gth. The other sexual difference is in the addition of a small dorsal (or anal) segment to the (^(^; this character is, however, not obvious in several families, the morphological representative of this anal segment being completely retracted and covered by the pygidium. In others this segment is visible only from beneath, simulating, therefore, a sixth ven- tral. Ttli. The very rare occurrence of articulated movable spurs at the end of the tibite; it is seldom, indeed, that more than one fixed mucro occurs, and in the species in which the tarsi are inserted laterally near the tip, this mucro becomes frequently elongated and curved ; the outer angle of the tip is in these instances quite often prolonged into a curved digitation, like the terminal tooth of the front tibite of some Scaritini, of the family Carabidm. 8th. The head is most frequently prolonged in front of the eyes, forming a beak, which is usually narrower than the front, and frequently very slender. A flattened prolongation, similar to a beak, occurs in some genera of CuGujidcB, PythklcB and (Edemeridm, but not elsewhere in the normal Coleoptera. 9th. In the vast majority of species the labrum is wanting; in some Scolytidm it is feebly developed, but is present in normal form only in Bhinomaceridm and Antliribldo}. 10th. Except in Bhinomaceridce and Antlirihidce the palpi arc short and rigid, with the joints diminishing in size; in those families they are slender and flexible, as in normal Coleoptera. llth. In those genera in which the hind tibise are truncate and margined at tip, forming a surface called a corbel, this surface may be glabrous or scaly. In normal Coleoptera they are always glabrous, and in ITypocepli- alihs alone they are densely clothed with hair.* 12th. A peculiar ridge on the inner surface of the elytra, into which the ascending margin of the metathoracic epimera and ventral segments fit, giving great firmness and solidity to tlic hinder part of the body. This * LeConte, Trans. Am. Ent. Soc. v, 209. INTItODUOTIOJ^^. XI a ridge is rarely wanting; and is represented among normal Coleoptera, so far as I have examined, only in certain Buprestkke. These characters taken collectively, in addition to the two fundamental defining characters first mentioned, indicate a profound diflerence in or- ganization, which isolates the Ilhynchophora from all other Coleoptera. From this isolation results the necessity of classifying them upon other characters than those which are found useful in defining series and fami- lies in the normal Coleoptera. The great resemblance in general appear- ance of the insects of this type, and the endeavor to consider them as only a family in the whole series of Coleoptera, has caused the characters used in tills memoir to be either undervalued or overlooked. I believe, however, that when attention is directed to them, and to certain other characters, which I have not had time to fully investigate, the arrangement of these in- sects into natural groups will be found as simple and intelligible as that of the normal Coleoptera. Among the investigations which j^et remain imperfect, I would mention as specially deserving of attention, the stridulating organs. There are in some genera spaces on the inner surface of the elytra, which have a pearly lustre, and which are probably capable, by friction against the ascend- ing margin of the ventral segments, of producing a sound. I have men- tioned these under the genus Listronotus, of the Phytonomini, but they are present in many genera of other tribes, and in fact, the Gonotracheli and many others are known to emit a squeaking sound. The homologies of the parts of the head, by reason of which the front por- tion becomes extended into a beak, and the basal piece on the under surface (which separates the gular sutures in normal Coleoptera) disappears, are also worthy of attention; so too are the larvie, with the view of discovering some general characters in which they difler from those of other Coleoptera. A more careful study should also be made of the antennae of the Scoly- iidcB, by specimens mounted in Canada balsam, so that the homologies of the joints of the funicle, when they disappear may be ascertained. The subject, as treated in this memoir, is, I may say, barely sketched, and will yield to others, who may devote labor to it, not only the correction of errors I have made, but many new truths and generalizations greater in value than those to which I have attained. The affinities of the families of Ilh3'ncliophora among themselves, and their resemblances to various series or families of the normal Coleoptera remain to be indicated. The typical Rhyuchophora, Curcullonidm, while exhibiting in the dif- ferent tribes characters which are more individualized and combined with special structures in the other families, occupy a central position around which the latter may be grouped. The Rhinoviacerida', by the presence of a labrum and flexible palpi, as well as by the general form of b()dy,and 11-joiuted, nou geniculate antennre, indicate a resemblance to Rhiuosiiuus, &c., of the PytliidcB. The Otio- rhy7ic7iidm, in the tribes with large mentum, and the Br achy cer Ida show XIV INTRODUCTIOIS^ strong analogy with the higher Tenebrionid(e, in which the buccal cavitj" is entirely closed by the mentum. B}^ the gradual obsolescence of the deciduous mandibular appendage, and tlie scar, which is its natural consequent, the OtiorhyncMdce pass almost in- sensibly into the CurGulionid(P. The last named family through the Eri- rlvnini is affiliated with the Bhyncliitidce, and through the Barini with the CalandridcB and CossonidcB. The Hylastes group of the Scolytidm shows strong affinities with the Cos- sonidce, and a slight reversion towards the CryptorhyncMni of the Curcu- lionidce. The Brentliidoi are isolated, and indicate a relationship which is neither of affinity or analogy, but rather of contemporaneous origin with Hypoceph- alidw, Rhysodidm, Gupesidm, and perhaps some other families of normal Ooleoptera, which have been yet imperfectly studied. Nevertheless, by certain abnormal genera, not occurring in our fauna, they exhibit a re- semblance in some characters to the sub-family Platypodidce of the Scoly- tidce, and connect both, by their resemblances with the ColydiidcB of the Clavicorn series of normal Coleoptera.* Some of the Scolytidm in form and general appearance resemble the feebler groups (Choragus, &c.) of the Anthribidce, but the characters of the latter are so peculiar, that they must be viewed as a synthetic type, combining resemblances to very diverse series. The form of the mentum, if I have interpreted it correctly, is found only in the Adephaga {Ampldzoa), Avhile the great sexual dift'erences in the length of the antenna? occur only in the Gerambycidcc, The well developed labrum, filiform flexible palpi, straight, 11-jointed antenntc, and epipleurte indicate a higher organization than is found in other Rhynchophora. Tlie complete consolidation, without su- tures, of the elements of the under surface of the head and prothorax, indi- cate a progress along the line of true Rhynchophorous development, upon which I have based the two fundamental defining characters. The pro- gress in this instance has been carried so far as to cause the disappear- ance of these very characters. If any resemblance to the normal Coleop- tera could be seen to replace them, the Antliribidw would be removed, as has been done with tlie BrucMdm, to some other part of the system. But this is not the case, and they must remain, therefore, as the expression of the most perfect development thus far attained in the Rliynchophorous type.f The classification here adopted is simpl}^ that set forth by me in the memoir:j; above cited, which was read before the National Academy of *It will be here remembered that Nematidium has the median suture behind the point of the prosternum precisely as in Rhynchophora. t In this connection it is important to remark, that while the food of the Rhynchophora is almost univcrsallj* vegetable tissues, either living or dead, Brachytarsus is a parasite upon a Hemipteron, of the genus Coccus, as narrated by Nccrdlinger, Stettin Ent. Zeitung, 1818, p. 230; Lacord., Gen. Col. vii, 481. X American Naturalist, July, 1874. Il^TRODUCTION. XV Sciences, at tlie session held at "Washington, April, 1874; I have, however, left out the families BraGliyceridcB, Amycteridce and Belidce, defined in that essay, but which are not represented in our fauna. There are three series, composed of eleven families, represented in Tem- perate and Arctic North America, which may be diagnosed as follows : I. Abdomen (j^ 9 f^like ; pygidium small, elytra without lateral fold on inner surface HAPLOGASTRA. Labrum distinct, mandibles flat, simple Rhinomaceridae. Labrum wanting : Mandibles flat, toothed on outer and inner edge Rhynchitidae. " stout, pincer-shaped Attelabidse. II. Abdomen (J' 9 dissimilar ; (^ with an additional anal segment ; pygid- ium large ; elytra with acute lateral fold on in- ner surface ALLOGASTRA. A. Antenuaj with annulated or solid club. Tarsi narrow, setose. Gular margin prominent, presternum exca- vated Byrsopidae. Tarsi dilated, usually with a brush of hair beneath. Mandibles with deciduous tip, leaving a scar Otiorhynchidse. Mandibles without scar, usually pincer- shaped Curculionidse. B. Antennse with ten or eleven distinct joints Brenthidae. III. Abdomen (^ 9 alike ; elytra with a distinct lateral fold on the inner surface HETEROGASTRA. A. Pygidium vertical or declivous : Antennae geniculate, clubbed ; labrum want- ing ; last spiracle covered by ventral seg- ments Calandridae. Antennse straight ; labrum distinct ; last spir- acle not covered by ventral segments ; py- gidium deeply notched to receive sutural apex of elytra Anthribidae. B. Pygidium horizontal, smaller : Antennse geniculate, clubbed ; terminal edge of last ventral segment acute, surrounding the last dorsal ; tibiaj generally compressed and serrate Scolytidae. Antennse straight, with annulated club ; max- illse very large, palpi and ligula feeble Apionidae. Among the genera and species described in the present memoir, there will doubtless be many which, with more extended comparisons, will be found identical with those which occur in other regions. It will be a just XVI rt^TRODUCTION. criticism, that I have failed to identify them with those ah'eady in the books. In explanation of this, I would say that I have defined the tribes, genera and species, in many instances, by characters, which. have been unnoticed or neglected bj^ previous investigators ; and finding that quite frequently, species, having a strong external resemblance, differed by structural charac- ters of great moment, I did not feel warranted in applying to them names given to species, which agreed with them in the outline, vestiture and sculpture of the larger parts of the body, but which have been described from other zoological districts. It will be easy, by the aid of the structural characters which I have given, to identify my species with the types exist- ing in European cabinets. I would rather that those I have named would sink into synonymy, than that, in the present condition of science, I should appear to teach false ideas regarding geographical distribution, which, Avhen carefully studied, must give us important aid in attaining a knowledge of the causes and develoijment of the existing order of things. LeConte.] KHINOMACERIDJE. Family I. RHIl^OMACERID^. Mentum transverse, small, emarginate in front, supported on a very broad gular peduncle ; ligula and palpi small . Maxillae exposed, lobes short, ciliate at tip, inner one very siiort ; palpi 4-jointed, cylindrical, well developed. Mandibles flat, curved, acute, toothed on the inner side. Antennae inserted at the side of the beak near the end, 11-jointed, straight, first joint a little stouter than the second, but not longer, joints 2 — 6 nearly equal, 7 and 8 a little shorter and broader, 9 — 11 forming an elongate loose club, the last joint oval, pointed, divided transversely near the tip. All the joints are sparsely pilose, and those of the club are covered with sensi- tive surface. Head prominent notdeflexed, eyes convex, prominent, rounded, not very finely granulated ; beak as long as the prothorax, rather flat, nari'owest about the middle, wider at base and tip; without antennal grooves. La- brum distinct. Prothorax truncate before and behind, sides convex, prosternal sutures distinct, widely separated, parallel in front, then curving inwards, and at- taining the coxal cavity about the middle of its outer margin ; coxal cavi- ties rounded, confluent. Mesosternum flat, pointed behind at the middle, coxal cavities rounded, confluent ; trochantin large ; epimera transverse, oblique, attaining the trochantin . Metasternum rather long, side pieces narrow, slightly dilated externally in front. , Elytra covering the pygidiura, rounded at tip, without epipleurae, and without fold on the inner surface near the side. Abdomen with five free ventral segments nearly equal in length, separated by straight sutures, intercoxal process acute ; dorsal segments coriaceous, nearly equal in length, the last more corneous, articulating with the last ventral ; anal segment of (J* convex, not very prominent ; side mar- gin of abdomen acute, but not fitting into an elytral groove. Anterior coxae prominent, contiguous ; middle coxae rounded, contiguous ; hind coxae transverse, slightly separated by the acute intercoxal process, and extending to the side of the abdomen. Legs slender, not elongated, tibiae truncate at tip, middle and hind pair with small tei-minal spurs ; tarsi brush-like beneath, 4-jointed, third joint broad deeply bilobed, claws divergent, simple or slightly broader at base (in our species). This family contains a few species inhabiting the northern temperate zone, and depredating on the male flowers of coniferous trees ; in which the eggs are deposited. As I have observed on a former occasion, this family ia a synthetic or undifferentiated type in which the Rhynchophora make the nearest approach to the lower Heteromera ; it is therefore infcer- PROC. AMER. PHILOS. SOC. XT. 96. A 2 ' EHINOMACEKID^. [i.eConte. esting to see that it clings to a very ancient and synthetic type of vege- tation Our species all belong to one genus. RHINOMACER Fabr. Pubescence long and coarse : Prothorax not longer than wide 1. pilosus. Prothorax longer than wide 2. elongatus. Pubescence short and fine 3. comptus. The (J' difiers from the 9 by the front tibiae being longer and slightly curved inwards, and the beak longer, more slender, and less dilated, at the tip. The tufts of hair at the middle of the third and fourth ventral seg- ments of the 9 are also present in our species. The anal segment characteristic of the (^ of the second series of Rhyn- chophora also exists in Rhinomacer, but is not prominent, and is almost concealed by the last dorsal segment, which is rounded at tip. 1. R. pilosus, n. sp. Brown or blackish ; antennae and legs paler ; pubescence long and coarse. Beak punctured and substriate, head densely punctured. Prothorax as wide as long, densely and strongly punctured, sides rounded. Elytra con- vex, parallel, elongate, coarsely punctured. Length 3.6 mm's ; .15 inch. Lake Superior, Virginia, California ; four specimens. 3. E. elongatus, n. sp. Blackish with a slight brassy tinge ; antennae and legs brown ; pubescence pale brown, long and coafse. Beak with the outer half pale ; sculptured as in the preceding. Prothorax a little longer than wide, very densely liunctured, sides very slightly rounded. Elytra rather narrower than in the preceding. Length 3.6 mm's, .15 inch. Pennsylvania four specimens. Two are dark colored ; one dark with pale elytra, and one entirely pale brown. One 9 from Canada, with pale brown elytra has the form and sculpture of the other four, except that the prothorax is scarcely at all rounded on the sides, and is less densely punctured, and the elytra still more elongated. It may indicate another species, but I am unwilling to designate it as such without more specimens. 8. R. comptus, n. sp. Form and size of B. pilosus ; blackish with a distinct brassy tint, clothed with short whitish hair. Head and beak as in the other species. Pro- thorax as wide as long, rounded on the sides, more finely and densely punc- tured. Elytra more densely and rugosely punctured. Stem of antenna? pale brown. Length 3.6 mm's ; 15 inch. One 9, Lake Tahoe, California; Mr. Crotch. Quite distinct by the shorter pubescence and finer and denser punctuation. LeOonte.] EHYNCIIITIDJE. Family IT. RHYIS^CHITID^. Mentum small, subquadrate, supported upon a long narrow gular pedun- cle ; ligula prominent, small, palpi short. Maxilkie exposed, palpi short, rigid, as in Curculionida?, 4-joiuted. Mandibles toothed on the outer and inner side ; capable of great lateral extension ; in repose the outer apical tooth on each projects forwards, so that two small acute teeth seem to project from the mouth. AntennfB inserted at the sides of the beak, in position varying according to the genus ; 11-jointed straight, tirst joint not elongated, and scarcely stouter, 2 — 8 slender, 9 — 11 broader, forming a loose club, and covered with sensitive surface. Head prominent, not deflexed, eyes rounded finely granulated ; beak slender, varying somewhat in form according to the genus. Prothorax truncate before and behind, convex, prosternal sutures not visible, coxal cavities rounded, somewhat transverse, with a distinct fissure at the outer side margin : distant in Pterocolus, confluent in other genera. Mesosternum flat, acute behind in all but Pterocolus, and with the side pieces normal inform and diagonally divided ; in that genus they are trans- verse, prominent, apparently undivided, and ascend between the prothorax and humeral angle of the elytra, suddenly declivous and excavated in front for the protection of the legs ; coxal cavities approximate, except in Ptero- colus. Metasternum rather long, with narrow side pieces ; shorter with wide side pieces in Pterocolus. Elytra separately rounded behind, exposing the pygidium in some genera ; conjointly rounded, and covering the pygidium in others, epipleuraj dis- tinct ; submarginal fold on inner face short and straight. Abdomen Avith five free ventral segments, nearly equal in length, sepa- rated by straight sutures, intercoxal process acute except in Pterocolus ; (J^ without additional anal segment, pygidium in both sexes triangular, de- flexed ; sides of segments not forming an acute edge, and not fitting into a lateral groove of the elytra. Anterior coxae usually conical, contiguous, and prominent; smaller, rounded and separated in Pterocolus. Middle coxae similar to the front ones. - Hind coxge transverse, reaching to the margiaof the elytra, or nearly so. Legs slender, rather long, tibiae truncate at tip, with small terminal spurs ; tarsi brush -like beneath, 4-jointed, third joint broad deeply bilobed; claws bifid, or acutely toothed. Though nearly related to the preceding family, these species arc readily distinguished by the absence of labrum, and the peculiar form of mandible, which recurs again only in Desmoris, an Erirhine genus of Curculionidai. "While in Rhinomaceridse a relationship to normal Coleoptera is seen in the presence of a labrum, and better development of maxillary palpi, a IIHYNCHITID^. [LeOonte. similar tendency is evinced in the Rhynchitidse by the distinct epipleurse. In the anomalous genus Pterocolus moreover, the prothorax is distinctly and acutely margined at the sides, and excavated beneath, so as to form a large cavity for the reception of the front and middle legs. This character is seen in no other Rhynchophorous insect, and would almost warrant its reception as a distinct family. For the present however, I prefer placing it as a sub- family. / Sub-family I. EHYNCHITID^. The distinctive characters of this sub-family liave been pointed out, but may be Ijriefly resumed as follows : Body rather elongate, or pyriform, front and middle coxae contiguous, conical, prominent. Prothorax without side margin, not excavated be- neath. Mesothorax with side pieces diagonally divided, epimera not ascend- ing. Metathorax with narrow parallel side pieces. Our genera are as follows : Pygidium covered by elytra. Elytra punctured irregularly AULETES. Elytra striate ETJGNAMPTUS. Pygidium exposed, elytra with striae of punctures, E.HYNCHITES. AULETES Sch. Three species are known to me : Antennae inserted at the middle of the beak. Black coarsely punctured, thinly pubescent 1. ater. Antennae inserted near the base of the beak. Bluish black, densely punctured, thinly pubescent 2. subcoeruleus. Vei-y small, brown, irregularly pubescent 3. cassandrse. 1. A. ater, n sp. Robust, black, thinly clothed with very fine gray pubescence, which is easily rubbed oft". Beak longer than the head and prothorax, nearlj' straight, slightly flattened above, coarsely punctured and slightly striate towards the base ; head strongly punctured, eyes small, very convex. Prothorax as long as wide, slightly narrowed in front, very little rounded on the sides, strongly punctured, with a faint smooth dorsal line. Elytra twice as wide as the prothorax, very convex, deeply and coarsely punctured. Antennae inserted about the middle of the beak. Length 3.6 mm's ; .15 inch. Illinois and Maryland ; three specimens. 2. A. subcoeruleus, n. sp. Less robust, blue black, thinly clothed with short suberect pubescence. Beak slender, as long as the head and prothorax, coarsely punctured, chan- neled towards the base ; antenjise inserted near the base, head coarsely punctured, eyes larger less prominent. Prothorax a little wider than long, rounded on the sides, strongly punctured. Elytra one-half wider than the LeConte] RHYJfOHITID^. 5 prothorax, convex, less coarsely aud more densely punctured. Length 3.3 mm's ; .13 inch. Nebraska ; three specimens kindly given me by Mr. Ulke. 3. A. cassandrse, n. sp. Very small, less robust, yellowish brown, varied sometimes with fuscous, irregularly clothed with rather coarse pale pubescence. Beak as long as the head and prothorax, coarsely punctured ; head and eyes as in A. sub- coeruleus ; antenna; inserted near the base of the beak. Prothorax longer than wide, rounded on the sides, densely punctured, with a faint smooth dorsal line. Elytra one-half wider than the prothorax, coarsely punctured, punctures arranged in rows near the base. Length 2 mm's ; .08 inch. Detroit, Michigan, and Capron, Florida ; collected by Messrs. H. G. Hubbard and E. A. Schwarz, on Cassandra calyculata. EUQNAMPTUS Sch. The species of this genus are more slender in form than the other mem- bers of the family, and the legs are longer and more feeble. According to the punctuation of the head, prothorax aud elytra, the species may be readily recognized : Elytral interspaces very narrow 1. striatus. •' " wider than the striiB. Front not channeled. Head feebly punctured, narrowed behind. 2. angustatus. " " not " " 3. coUaris. " more strongl}^ punctured, antenna; stouter.. . 4. punctieeps. Front distinctly channeled , . 5. sulcifrons. 1. Eu. striatus, n. sp. Elongate, black, clothed with erect black hairs, head and prothorax red- dish yellow. Beak black, coarsely punctured, distinctly carinate behind the antennae, which are inserted about the middle and are long and slender ; front sparsely punctured, obsoletely channeled. Prothorax longer than wide, sparsely coarsely punctured ; dorsal line deep, abbreviated at each end. Elytra with strise composed of deep transverse punctures closely placed ; interspaces narrow, each with a row of distant but distinct punc- tures. Length 4.7 mm's ; .19 inch. Haulover, Florida ; Messrs. Hubbard and Schwarz. I have seen three 9 ; the eyes are large, and the front rather broad and convex, as in the next species. 2. Eu. angustatus Gyll., Sch. Cure, v, 342 ; RliyncTiites ang. Herbst, Kafer, vii, 140, Tab. 105, f. 4; Anthribus nigripennis Fabr., Syst. El. ii, 410 ; Ehinosimus nigr. Latr., Gen. Cr. et Ins. ii, 233 ; Hist. Nat. Cr. et Ins. xi, 27 : RhyncMtes nigr. Oliv., Ins. 81, 87, tab. 2, f. 39. (^ eyes larger, front narrower, head gradually narrowed behind ; middle tibia; longer and slightly bent inwards near the tip ; external apical tooth of mandibles not prominent. 6 EHY:N-CniTID^. [LeUonte. 9 eyes less prominent, front wider, head broadly rounded behind the eyes and more convex ; middle tibiae straight ; external apical tooth of mandibles very prominent. Middle, Southern, and Western States to Texas. Very variable in color, but with the legs usually yellow, rarely varied with fuscous. 3. Eu. collaris Gyll., Sch. Cure, v, 341; AntJiribus coll., Foibr.Syst. El. ii, 410 : Rhynchites coll., Oliv. Ins. 81, 28, tab. 2, f. 40 ; RMnosimus coll., Latr. Hist. Nat. Cr. et Ins. xi, 27 ; RJiyncliites ruficollis Germ., Ins. Nov. 188. Middle, Southern, and Western States, to Texas. Equally variable in color, but the legs are almost always black, rarely varied with testaceous. Of twelve specimens before me all seem to be 9 . ^^^ differ from those of the preceding species only by having the head behind the eyes cylindri- cal and not narrowed. It may possibly be a dimorphous form of Eu. angustatus. 4. Eu. puncticeps, n. sp. Of the same form as collaris, testaceous clothed with erect hairs. Beak rather stouter less deeply scu]i)tured, front obsoletely channeled, head coarsely and sparsely punctured, cylindrical not narrowed behind. Pro- thorax coarsely punctured, feeblj' channeled. Elytra with striaj composed of approximate punctures, interspaces wide flat, each with a row of very small distant punctures. Antennae extending to the base of prothorax, stouter than in the other species. Length 3.6 mm's ; .15 inch. Illinois, Mr. B. D. Walsh ; Georgia. I have seen but two 9 of this species ; it is easily recognized by the stouter antennae, and more uni- formly sculptured beak, which is free from the impressions and lines seen in the two preceding species. 5. Eu. sulcifrons Gyll., Sch. Cure, v, 343. I refer to this species, a (^ from Texas, sent by Mr. Belfrage. It is of exactly the same form and sculpture as Eu. angiiMatus, but the eyes are less prominent, more as in the 9 of that species, and there is a fine but dis- tinct frontal channel ; the head is gradually and distinctly narrowed be- hind the eyes. The color is testaceous, with a lateral blackish vitta on tlie elytra gradually becoming broader behind ; an extension of this dark color would give the appearance mentioned by Gyllenhal, in whose specimen the elytra were black with a blue reflexion, and pale piceous towards the base. RHYNCHITES Herbst. Pubescent species 2 Glabrous species 7 2. Pubescence long erect 3 " short, body red above 1. bicolor. 3. Beak bistriate and carinate at base 4 " flattened not carinate at base 6. planifron?. LeContc ] RHYJ^CHITID^. 4. Strise distant not veiy distinct 5 " composed of large deep punctures 6 5. Color black bronzed 2. geneus. " blue 3. mexicanus. 6. Beak narrow 4. liirtus. " broad, dilated at tip 5. glastinus. 7. Legs dark colored 8 Legs yellow, body coppery golden 7. auretis. 8. Bronzed, frontal fovea deep 8. fossifrons. Frontal fovea obsolete 9 9. Blue bronzed, head strongly punctured 9. cyanellus. Coppery, head feebly punctured 10. geratus. 1. R. bieolor Herbst, Kiifer, vii, 131, tab. 104, f. 6; Oliv., Ins. 81, 23, tab. 2, f. 31, GylL, Sch. Cure, i, 212 ; Attelabus bic. Fabr., Ent. Syst. i, 2, 888 ; Syst. El. ii, 422 ; CurcuUo 6ic., Fabr. locis variis. An abundant species found on wild roses from the Atlantic to the Pacific coast. The head as far as the eyes, the prothorax and elytra are red in tlie specimens from the eastern part of the continent. I have indicated in my collection the following races : a- Head entirely black. Oregon and California. i3. Head, stem of antennie and legs red. Colorado. y. Red, except the club of the antennas, and sides of metathorax, which are dark. Colorado. The beak of the 9 is shorter and stouter than in ^, but I see no other sexual difference. 2. R. seneus Boh., Bull. Mosc. vi, 22 ; Sch. Cure, i, 21o ; Fahraeus Sch. Cure, v, 323. Middle, Southern, and Western States to Colorado. A variety occurs, in whicli the elytra are testaceous. I observe no sexual differences in the specimens before me. 3. R. mexicanus Gyll , Sch. Cure, i, 237 ; Chevr., Col. Mex. 108. I refer to this species one specimen from Arizona, very similar to R. hir- tiis, but of a blue color ; the beak is rather shorter and broader, and slightly dilated at tip ; the two strine towards the base are equally apparent, and the front is similarly channeled. The head and prothorax are somewhat less coarsely punctured, and the elytral strife are more evident, and composed of rather larger punctures. The differences, except in color and form of beak, are not obvious ; the former may be variation, and the latter is, perhaps, sexual. 4. R. hirtus Oliv., Ent. 81, 26, tab. 2, f. 36; GylL, Sch. Cure, i, 231-, Attelahus hirtus Fabr., Syst. El. ii, 421. Carolina to Florida. 5. R. glastinus Lee, Pacific R.R. Expl. and Surv., Insects, 52. San Francisco, California. Remarkably different from our other species KHYNCHITID^. [LeUonte. by the broader, shorter, and more deeply sculptured beak. No sexual dif- ferences observed. 6. R. planifrons n. sp. Moderately elongate, dark blue, clothed with long erect hair. Beak slender, as long as the head and protliorax, sparsely coarsely punctured, striate in front of the antennae, flattened behind them, and margined at the sides. Head coarsely punctured, frontal channel short, deep. Protliorax slightly narrowed in front, not rounded on the sides, sparsely punctured, feebly channeled. Elytra one-half wider than the prothorax, impressed behind the base, striae composed of very large distant punctures, inter- spaces rather wide, each with a row of small but deep punctures. Length ;15 mm's ; .14 inch. Cape San Lucas, Mr. Xantus. I have seen but one specimen. It is nearly of the same form as B. mexicanus but a little less robust. 7. R. aureus, n. sp. Elongate, glabrous, bright coppery golden. Beak rather slender, punc- tured ; head coarsely and deeply punctured, with a narrow smooth frontal space which is channeled. Antennae slender, testaceous with blackish club. Prothorax longer than wide, sides very slightly rounded, coarsely and deeply punctured. Elytra one-third wider than prothorax, impressed behind the base, striae composed of deep close-set punctures, interspaces narrow, sparsely rugose. Legs bright testaceous yellow. Length 2.3 mm's; .09 inch. Santa Barbara, California. Abundant, Mr. 6. R. Crotch. The beak seems a little shorter and broader in some specimens, which are probably '^ ; otherwise I perceive no sexual diflferences. 8. R. fossifrons, n. sp. Elongate, glabrous, bronzed ; legs dark. Beak slender, as long as the head and prothorax, cylindrical, shining, sparsely punctured ; head coarsely but not densely punctured, with a deep elongate fovea on the front. Pro- thorax strongly punctured, not narrowed in front, very slightly rounded on the sides. Elytra one-third wider than the prothorax, impressed behind the base, striae composed of deep approximate punctures, interspaces nar- row, rugose. Length 2.3 mm's ; .09 inch. One specimen, Mariposa ; Dr. A. Thevenet. Of the same form and size as the preceding, but differing by the beak, frontal fovea, more rugose elytra and dark legs. 9. R. cyanellus, n. sp. Of the same form, size and sculpture as the two preceding, but of a dark blackish blue color. Beak slender somewhat flattened, strongly punctured ; head strongly and sparsely punctured, without frontal fovea. Prothorax and elytra as in E. fossifrons. Length 2.1 mm's ; .085 inch. Massachusetts and Illinois ; four specimens. The subbasal impi-ession of the elytra is less distinct than in the next species, and the general form more elongated. IieOonte.] EHYInCHITIDJE. 9 10. R. geratus Say, Cure. 5 ; ed. Lee. i, 263. Gyll., Sch. Cure, i, 216. Middle and Western States. Closely related to the preceding, but the color is coppery, and the head is finely granulated, and less deeply punc- tured ; the beak is also longer and more slender. I have one specimen of a dark blue color, resembling B. cyanellus, but with the head faintly punctured. Sub-fVimily II. PTEROCOLIDJE. A single species constitutes this sub-family. On account of the anomal- ous characters its place in the series of Rhynchophora has been changed from time to time, without very satisfactory results. The latest authoritj^ Lacor- daire, deceived bj^ the broad form of body, and ascending side pieces of the mesothorax placed it in the neighborhood of Ceutorhynchus. A study of the mouth organs, as well as the antennae, shows that it is allied to Auletes and Rhynchites, while the other differences require it to be received as a very peculiar and distinct type. It differs fi'om the genuine Rhyncliitida3 by the antennse inserted much nearer the eyes, w^hicli are suddenly but not deeply emai'ginate in front. The side margin of the prothorax is acute and well defined, and the under surface, with the anterior part of the mesothorax, is excavated, forming a large cavity for the reception of the front and middle legs. The elytra are sculptured with wide shallow grooves, which are confusedly punctured ; the epipleurfe are distinct ; the tips are widely dehiscent and separately rounded, exposing parts of three dorsal segments, all corneous and densely punctured. Front and middle coxae small, rounded, widely separated, not prominent ; posterior coxae separated, transverse, intercoxal process broad. Tibiae with two distinct apical spurs, tarsi dilated, claws appendiculate. Ventral segments shoi"t ; pygidium less convex in the (^, and strongly in- flexed. Side pieces of mesosternum transverse, solid, ascending between the prothorax and elytra. Side pieces of metasternum wide. PTEROCOLUS Sch. 1. P. ovatus Gyll., Sch. Cure, i, 240 ; Labram & ImhoflT, Cure. 70 ; Attelabus ovatus Fabr., Syst. El. ii, 426 ; Oliv. Ent. 81, 11, tab. 1, f. 13 ; Apotomus ovatus Kirby, Fauna Bor. Am. iv, 205. Michigan and Massachusetts to Florida. Easily known by its robust form and beautiful blue color. Family III. ATTELABID^. Mentum very transverse, short, trilobed, supported on a very large quad- rate gular peduncle ; ligula and palpi small. Maxillae exposed, lobes small, palpi rigid, 4-jointed. Mandibles flat, pincer-shaped, rather stout, toothed on the inner side. Antennae inserted rather on the upper surface than at the sides, straight, 11-jointed ; first and second joints stouter, 9 — 11 larger forming a loose elongate club covered with sensitive surface. PROC. AMEK. PHILOS. SOC. XV. 96. B 10 ATTELABID^. [IjeConte. Head prominent, not deflexed, eyes oval, finely granulated, not promi- nent ; beak short and stout, thicker at the end be3^ond tiie insertion of the antennae ; antennal grooves short and broad. Prothorax truncate before and behind, convex ; prosternal sutures not distinct, coxal cavities confluent, rounded. Mesosternum flat, declivous, triangular, pointed behind ; side pieces short transverse, diagonally divided, epimera not attaining the coxae. Metasternum short, side pieces wide. Elytra not covering the pygidium, separately rounded at tip ; epipleurje narrow but distinct ; inner surface without lateral fold. Abdomen with five short ventral segments separated by deeply impressed straight sutures, intercoxal process acute ; fifth at the middle very short, being compressed by the inflexion of the pygidium ; side margin not acute nor extended upwards. Dorsal segments convex, almost corneous. Py- gidium small corneous, upper margin Avith a large deep marginal groove. Anterior coxoe conical, prominent, contiguous ; middle coxae somewhat transverse, and a little prominent ; hind coxae transverse, nearly contigu- ous. Legs stout, tibiae seri'ate on the inner side, armed at the tip with two strong hooks, which represent the spurs in the two preceding families ; tarsi dilated, brush-like beneath ; third joint deeply bilobed ; claws con- nate at base. A family containing but few genera, with less than 200 species, distribu- ted mostly in the tropics. ATTELABUS Linn. The species of this genus which occur in our fauna, are divided by Mr. Jekel (Ins. Saundersiana ii, 186), into three groups: I. Glabrous ; front thighs less thick, not toothed : hom/EOlabus. Blue black ; prothorax, neck, elytra and abdomen red .. . 1. analis. II. Glabrous, front femora thick, strongly toothed (in (^) : synolabus. Red; legs usually black or dark 2. nigripes. Black, elytra partly red. Apical angles of beak not prominent 3. bipustulatus. " acute, " 4. genalis. III. Pubescent, front femora not toothed, himatolabus. 5 . rhois. 1. A. analis Illiger., Schneider's Mag. v, 616 ; Gyll., Sch. Cure, i, 199 ; Harris, Ins. Inj. Veg. 58 ; A. similis Kirby, Fauna Bor. Am. iv, 204. i^. Ventral segments with two rows of acute tubercles ; under surface of mouth flat. 9 . Ventral segments not tuberculate ; under surface of mouth with two small acute teeth projecting downwards. Abundant in the Atlantic States. With a large series of specimens be- fore me, I cannot agree with Mr. Jekel, in separating A. similis as distinct on account of the darker color, and less lustrous elyti-a. JLeConte.] ATTELABID^. 11 I have one specimen from New York in which the protliorax is very dis- tinctly punctured, but it does not otherwise differ. 2. A. nigripes Lee, Ann. Lye. Nat. Hist. (N. Y.), i, 171 ; pi. 11, f. 6 ; Gyll., Sch. Cure, i, 199. 9 • Front thighs unarmed. (^. Front thighs strongly toothed. Atlantic States to Kansas ; abundant. The legs are usually black or dark brown ; in one specimen fi'om Texas (Belfrage), they are of the same red color as the body. In other specimens the head prothorax and part of the under surface are dark brown. 3. A. bipustulatus Fabr., Mant. 229 ; Syst. El. ii, 418 ; Gyll. Sch. Cure, i, 201 ; Harris, Ins. Inj. Veg. 58. Atlantic States, not rare. The front thighs are armed with a small acute tooth in all the specimens I have seen. 4. A. genalis, n. sp. Of the same form and size as A. bipitstulatus, bi^ with the apical angles of the beak acute, and projecting laterally. The color is black, not blue, the eh'tra are red with a large triangular scutellar spot, and a large apical blotch black ; the abdomen is red. Length 3.2 mm's ; .125 inch. (^. Front thighs armed with a long slender tooth. 9 . Front thighs unarmed. New Mexico. The species in our fauna resemble each other in form and sculpture to such an extent, that I have not thought necessary to give a more detailed description of this very distinct species. 5. A. rhois Boh., Bull. Mosc. vi, 21 ; Gyll., Sch. Cure, i, 202 ; A. pubes- eens Say, J. Ac. Nat. Sc. Phil, v, 252 ; ed. Lee. ii, 315. Lake Superior to Virginia. Not rare on hazel bushes . Attelahus scutellaris Say does not belong to this family, and is the type of the genus PiazorMnus Sch. Family lY. BYRSOPID^. Mentum moderate in size, trapezoidal, wider in front, concave in our species ; gular peduncle very small ; ligula and palpi small. Maxillae exposed, small, palpi very short. Mandibles stout and short, pincer shaped, without apical scar. Antennae short, inserted in front of the eyes, sub-geniculate ; scape short, funiculus 7-jointed, the last joint wider forming part of the club in Thece- sternus, club annulated, oval, pointed, and covered with sensitive surface. Head strongly deflexed, beak short, stout, not emarginate at tip, separated from the head beneath by a strong gular constriction, for the reception of the antennae. Eyes transverse narrowed beneath. Prothorax rounded in front, deeply excavated beneath for the reception of the head and beak, coxal cavities small, confluent ; prosternum visible in Thecesternus, as a triangular plate in front of the coxae. 12 BYRSOPID^. [LeConte. Meso- and metasternum very short, side pieces of the latter not separate. Elytra connate, covering tlie pygidium. Abdomen with the first and second ventral segments very large, connate, the suture effaced at the middle ; third and fourth short, fifth as long as third and fourth united ; sutures straight, very deeply impressed ; intercoxal process broad. Anal segment of fj* small, rounded at tip. Anterior coxae small, contiguous, rounded somewhat prominent ; middle coxa? separated, small, rounded ; hind coxoe small, oval, widely separated, distant from the side of the elytra. Legs slender ; tibiae sinuate on inner side, truncate at tip, and armed on the inner side with two small terminal anchylosed spurs. Tarsi 4- jointed, narrow, joints cylindrical, setose or spinose beneath. Third joint not at all dilated or bilobed in Thecestenms. Claws slender, simple, sepa- rate. This family contains but a small number of genera, all confined to the Eastern continent, except Theceaternus which is restricted to the interior parts of the United Sti^Jes, extending into Texas and eastward to Illinois. It forms a tribe distinguished from other Bj^-sopid* by the peculiar con- formation of the prosternum, which forms a triangular plate in front of the COXfE. THECESTERNUS Say. I have described (Proc. Acad. Nat. Sc, 1856, 18) what I at that time believed to be six species of this genus, in addition to the one described by Say. Subsequent investigation with more abundant material has raised some doubt in my mind as to the validity of the specific differences which I then observed. It is quite evident that there are several species, but it is found quite im- possible to define them. There are all gradations from specimens {T. hume- ralis) in which the humeral processes are fully one-third as long as the prothorax, to others (T. morMUonus) in which the elytra are truncate at base, and the humeral angles only slightly prolonged. It may be regarded therefore as a genus in which the originally distinct species are becoming effaced by mixture. The specimens which I collected in Kansas were found under dried buffalo-dung. I have since received several individuals from Illinois, Texas, and Missouri ; upon one of the latter is this note, made by Mr. C. V. Riley : "Cutting oft' blossoms of grapevines in May ; also beaten from Gary a. ' ' Well preserved and clean specimens are mottled with a pale ochreous crust composed of closely adhering minute scales. The bibliography is as follows : 1. T. humeralis Say, Cure. 8 ; ed. Lee. 1 267; Lacord., Gen. Col. pi. 67, f, 3 ; Brachycerus hitmer. Say, J. Ac. Nat. Sc. Phil, v, 254 ; ed. Lee. ii. 316 ; Litliodus humer. Germ., Sch. Cure, ii, 420 ; Lee. Pr. Ac, Nat. Sc. 1856, 18. Varieties? LWiodus rectu.i, affiiiis, riidis, eronts Lee. ibid, 18; longior morbillosus Lee. ibid., 19. Horn.] OTIORHYlSrCHID^. 13 Family Y. OTIORHYJ^CHID^. Mentum variable, sometimes large, filling the gular emargination and without peduncle, or small exposing the maxillaj and ligula and with dis- tinct peduncle. Labial palpi very rarely visible and then very short. Mandibles short, stout, pincer-like, very rarely slightly scissor-like, and in one instance {Dirotognathus) slightly laminiform and prominent. Ante- rior face with a distinct sear frequently borne at the tip of a slight process. Antennae inserted at the sides or top of rostrum always in front of middle and usually near the tip, geniculate, 11-jointed (except in Agraplms), the last three forming a compact club with distinct evidences of the sutures. Head moderately prominent, rarely (Agasphcerops) deeply inserted ; beak variable, never long and slender. Scrobes well defined, except in OtiorhyncMni, and receiving the first joint (scape) of the antennae in repose. Prothorax of variable form, apex usually truncate; rarely slightly pro- longed over the head, base truncate, arcuate or bisinuate, post ocular mar- gin either truncate or with ocular lobe more or less developed, sometimes with stifl' fimbriae. Antei'ior coxs contiguous (except in Pancleletejus) . Mesosteruum short, oblique or horizontal, rarely (Goleocerus) protuber- ant ; middle coxae nari'owly separated ; side pieces variable, never attaining the coxal cavity. Metasternum variable, short in Division I, usually long in Division II. Elytra concealing the abdomen entirely from above, without trace of epipleurse but with inflexed fold on their inner side. Abdomen with five ventral segments, the first two connate, the others free. Intercoxal process variable. Legs moderate ; femora very rarely decidedly clavate ; tibiae straight or feebly arcuate, usually mucronate at tip and rarely with small spur-like processes (certain OtiorhyncMni). Claws fixed or moveable, always simple, never toothed. The males of all the species have the pygidium divided, so that there are eight dorsal segments, while in the female there are but seven. This family contains all those genera in which the mandibles are provided in the pupa stage with a deciduous piece of varying form, usually elongate and slender, sometimes falcate and acute or short and conical. In the early life of the imago these pieces are lost (although specimens occur in which one, sometimes both are preserved), and the place of their attachment is in- dicated by a scar which is usually on the face of the mandible but frequently borne at the tip of a process of varying length. The form of the mandible itself without reference to the scar, indicates the occurrence of the decidu- ous piece. When the mandibles are acute at tip and one overlaps the other by an edge more or less acute, no deciduous piece can be expected. Its occurrence may always be looked for in those in which the mandibles meet with a broad surface and whose function is rather that of crushing than cutting, Bracliycerus, Sitones, Alo;phus aJid all the MecorhyncM are 14 OTIORHYXCHID^. [Horn. instances of the former, while CypJiiis, Entimus, Leptops, Ophryastes, Tanymecus, etc., illustrate the latter form. The family OtiorhynchicliB as defined by Dr. Leconte (American Natu- ralist, 1874, p. 396), has but little to do with the tribe of the same name as restricted by Lacordaire (Genera vi, pjj. 20 and 144), as it includes not only the greater portion of the Adelognathes, but also several tribes of Phanerognathes in the system of the latter author. In examining the under side of the body two forms of construction are found, by means of which this large family may be divided into two primary sections. First. Side pieces of mesosternum very unequal, the episternum larger and attaining the elytral margin, epimeron usually small, sometimes very small. Metasternal side pieces never very wide, generally very narrow or entirely concealed by the elytral margin, anterior end never broadly dilated on both sides. Second. Side pieces of mesosternum diagonally divided and equal or very nearly so, episternum distant from the elytral margin, sepa- rated by the epimeron. Metasternal side piece moderately wide, dilated at its anterior end with an acute process of greater or less ex- tent projecting inwards between the mesosternal epimeron and the body of the metasternum. The accompanying wood cuts have been drawn natural size from (1) Eupagoderes speciosus Lee, and (3) Hippoleptops tribulus Fab., the latter from a specimen kindly sent by Mr. H. Jekel, which although foreign (New Holland), was of sufficiently large size to allow of the drawing being made natural size. In the cut the mesosternal epimeron is left entirely black that its position as well as the form of the adjacent parts, might be rendered more evident. An examination of the foreign genera in the cabinet of the Academy of Nat. Sc, Phila., shows that the use of the above characters may be extend- ed to genera not represented in our fauna, and by means of them foreign genera, evidently allied, maj"- be brought in much closer proximity than by the system adopted by Lacordaire. No genus in our fauna presents any extraordinary or anomalous charac- ters. It may be remarked that no native species yet known is provided with any femoral armature, and all our genera with the exception of Agraphus have seven joints in the funicle of the antennae By reference to the synoptic tables, the extent of variation in other por- tions of the body may be ascertained. In consequence of the definition of the present family by the presence of the mandibular scar, the primary characters made use of by Lacordaire sink into even less than secondary importance, and as we have in the tenebri- ONiD^E parallel series each with genera of maximum and minimum develop- ment of mentum, so we have in the EhyricJiophora similar parallels in the two divisions above indicated. In taking the structure of the sternal side-pieces as a primary means of Horn.] OTIORHYIfCHID^. 15 dividing this family, I have found that genera are thereby approximated Avhicli are now widely separated, and of which the best authorities on the subject since Lacordaire acknowledge the afflnities. I might cite Leptops and Entiiaus in their approximation to Gyphus and Bhigus, the separation of Brachystylus from the Otiorhynchi and its position near Cyphus as well as Artipus from its present very unnatural position to a place near Cyphus. The character is therefore suggested as a better method of subdivision, although it is not claimed that it will in all cases be found infallible. A very limited study of the Rhynchophora will soon produce a conviction that there is on the one hand a great permanency of type of construction, and when variation of detail does occur, it is so gradual as to leave no abrupt lines of division. DIVISION I. This division contains those genera in which the mesosternal epimera are small, or at most moderate, the episterna in contact with the elytral margin, the metasternal side-pieces rarely of more than moderate width and not dilated at anterior end, and without the triangular process projecting between the mes-epimera and the metasternum. The other characters of the division are extremely variable, in all, however, the antennoe are strongly geniculate. All the genera of this Division in our fauna have a large men- tum concealing entirely the maxillae, excepting in the last tribe. The following tribes are represented in our fauna : Thorax without ocular lobes. Antennal grooves (scrobes) lateral directed inferiorly bbachy»ERIMI. Antennal grooves short, superior, rarely late- ral, and then directed toward the eyes OTiORHYBfCHIKI. Thorax with ocular lobes more or less distinct. Mentum at least moderate, concealing in great part or entirely the maxillae. Mandibles ro- bust not prominent, scar very evident ophryastini. Mentum very small, maxillae exposed, mandi- bles prominent, free edge rather thin, scar small, very narrow DiROroGMATHlNl. As will be seen by the above table thQ presence or absence of ocular lobes affords the only means of separating the tribes Brachyderini and Ophryastini, and the character must be strictly interpreted. The latter tribe has the ocular lobes sometimes very feeble and almost wanting, but as the lobes disappear the fimbriae become more evident. In the former tribe there are no evidences whatever of either ocular lobes or fimbria;. In one genus, the prosternum is more emarginate than usual, giving an appearance of slight ocular lobes, but no traces whatever of fimbriae are seen. In some of the genera of Ophryastini, the metasternal side pieces become of moderate width, showing somewhat of an approximation to the 16 OTIOEHYNCHID^. [Horn. genera of the second division. The side pieces in the other two tribes are very narrow and the sutures nearly always obliterated. Tribe I. brachyi>erini. Rostrum at least as long as the head and slightly dilated at tip, which is more or less emarginate. Front flat, rarely with a slight depression between the eyes. Scrobes moderately deep, usually distinctly limited and very oblique. Antennne moderate, scape attaining the eyes rarely ( Trigo- noscuta) passing them. Thorax without ocular lobes or fimbriae and not or very feebly emarginate beneath. Scutellum usually distinct. Elytra oval, not wider than the thorax. Mesosternal epimeron small, episternum attaining the elytra. Episternum of metasternum narrow suture usually distinct in its entire length. Abdomen with the first two segments (except in Gr. iv), separated by an arcuate suture, segments 3-4 short, conjointly not or but little longer than the second. As thus constituted, tlie tribe is widely different from that defined by Lacordaire under the same name. From it those genera have been re- moved in which the mesosternal side pieces are diagonally divided and the metasternal episterna moderately wide and dilated in front. These form tribes in the next division. It is, however, extremely difficult to fix tribal limits with any degree of certainty, as every character upon which classifi- cation has been based, exhibits a degree of variability ailmost unparalleled in any otiier series of Ooleoptera. The ocular lobes of the thorax especially exhibit this tendency, and the pointed outline of the eye which usually accompanies the lobe is by no means in better condition. The eye may be more nearly circular in outline with a lobe than it is without the lobe. As thus constituted, the ti'ibe contains the following groups : Third joint of all the tarsi wider than the second and deeply bilobed. Tibite normal, not dilated at tip. Scape not passing the eyes. Posterior coxa3 small, very widely separated Blinyomerl. Posterior coxaj normal intercoxal process triangu- lar or oval. Antennae scaly, body beneath densely scaly. Elytra emarginate at base, thorax closely aj^plied Epicacrl. Antenna; shining, sparsely hairy, body beneath nearly naked. Tips of hind tibiae feebly cavernous, a double row of spinules. First abdominal suture arcuate... Barynoti. Tips of hind tiba; open, a single row of spinules. First abdominal suture straight or nearly so .. Hormorl. Anterior tibi* dilated at tip ; scape long, passing the eyes Trigonoscutie. Third joint of tarsi not wider than second, and feebly emarginate Calyptiiii. Horn.] BRACHYDERINI. 17 Group I. 91inyonieri. Rostrum stout, cylindrical, as long as the head, and very little narrowed to the tip. Scrobes deep, well defined, suddenly arcuate in front, gradually wider behind and passing beneath the eyes. Mesosternal side pieces unequal. Metasternal episternum linear, suture distinct. Intercoxal pro- cess very broad and very short. Hind coxae very small. Corbels of hind tibiiB open, tarsal claws free. The form of the head, rostrum and scrobes resembles considerably that of Pandeletejus of the Second Division, but the structure of the sternal side pieces excludes the present genus from any such association. According to the system adopted by Lacordaire, this genus would be placed in the Brachyderides vrais. MINYOMERUS n. g. Rostrum as long as the head, continuous with it and but slightly narrowed toward the tip, robust, slightly arcuate, feebly emarginate at tip. Head feebly ti'ansversely impressed behind the eyes, which are small, round and coarsely granulated, convex, but not prominent, scrobes mode- rately well defined, deep and suddenly flexed in front, gradually broader behind and passing beneath the eyes. Antennae moderate ; scape slender gradually clavate, slightly passing the middle of the eye ; funicle 7-jointed. first two joints longer, the first longer than the second and stouter, 3-7 short and feeblj^ broader externally ; club elongate, oval, pointed. Thorax cylindrical, truncate at apex and base, without trace of ocular lobes or fimbriae. Scutellum invisible. Elytra oblong oval, base truncate at middle, humeri broadly rounded. Middle coxie moderately separated. Mesoster- nal side pieces unequally divided, elytra and episterna contiguous. Me- tasternal episternum very narrow, linear, suture distinct. Metasternum short. Posterior coxae small, very widely distant. Intercoxal pro- cess very short. Second abdominal segment as long as the two following united, separated from the first by a suture arcuate at middle. Front and middle tibite feebly mucronate at tip, corbels of hind tibi;B open. Tarsi with coarse hairs beneath, third joint feebly bilobed. Claws free. Body densely scaly. The feeble transverse impression of the h^ead behind the eyes is a charac- ter of extremely rare occurrence, which is found also in Proictes, Sch. Some relationship might be expected between the two genera. I have not been able to inspect many of the genei'a belonging to the group Bracliyde- rides vrais, but from those seen, I am inclined to think that nearly all should be referred to the Second Division of this memoir. Two species are known to me : Thorax slightly broader than long, sides moderately ai'cuate innocuus. Thorax as long as wide, slightly narrower behind languidus. PROC. AMER. PHILOS. SOC. XV. 96. C IS OTIORHYNCHID^. [Horn. M. innocuus, n. sp. Form oblong oval, moderately densely scaly. Head and rostrum as long as the thorax, densely scaly and with very short erect hairs. Rostrum emarginate at tip and with small triangular depressed space ; slightly swollen in front of the eyes. Occiput with transverse impression. Thorax broader than long, sides moderately arcuate, disc moderately convex, sur- face rugoso-punctate, sparsely scaly and with few short erect hairs. Elytra oblong oval, with rows of coarse shalloAV punctures closely placed, in- tervals feebly convex and at base feebly alternating ; surface densely scaly and with indument, intervals with a row of very indistinct erect scale-like hairs. Body beneath densely scaly. Legs densely scaly and with sparsely placed short erect setae. Length .14 inch ; 3.5 mm.* The scales are of a greyish or cinereous color, those of the thorax darker. One spe:imen, Colorado. M. languidus, n. sp. i Form elongate oval, surface densely covered with cinereous scales. Head and rostrum as long as the thorax. Head transversely impressed behind the eyes. Rostrum feebly emarginate at tip and with slight oval smooth space, surface densely scaly and with few short scale-like hairs. Thorax slightly longer than wide cylindrical, base narroM'er than the apex, sides nearly straight, apex and base truncate, disc regularly convex, coarsely, deeply and densely punctured, and with a slight median line. Elytra oblong oval, disc obsoletely striate, striie with rather large, closely placed punctures, intervals slightly convex, densely scaly and each with a single row of very short scale like hairs. Body beneath and legs as in the pre- ceding species. Length .14 inch ; 3.5 mm. Two specimens, Arizona and Fort Tejon, Cal. In both species the deciduous piece has left a very inconspicuous scar, transversely oval in form and not prominent as in several of the following groups. I have not seen specimens with the pieces remaining. The men- turn fills completely the gular emargination which is nearly semicircular in form. The gense are notched opposite the bases of the mandibles. The distance between the posterior coxae is equal to the length of the first two abdominal segments, and the coxae are not larger than those of the middle pair. Group II. Eplcaeri. The species composing this group are more or less pyriform, the body above and beneath densely scaly, the elytra of a pale-brownish or luteons color with the tip and two sinuous bands much paler. The rostrum is rather stout, usually longer than the head, the scrobes deep, well defined, * The measurements here given as well as all to follow in the present paper, are taken from the apical thoracic margin to tlie tip of the elytra, as this is m.ore certain and invariable than if the measurements are taken from the tip of the beak, which varies in length. Horn.] BKACHYDIiiEINI. 19 and rapidly descending. The supports of the deciduous pieces of tlie man- dibles are moderately or very prominent. The genera knoM^n to occur in our fauna may be recognised by tlie following table : Articular face of hind tibiae glabrous, support of deciduous piece moderately prominent. Antennae stout, last joint of funicle short broad, and very close to the club. Joints 1-2 of tarsi, glabrous GRAPHORHINUS. Antennae more slender, joints of funicle conical, the last distant from the club. Tarsi pubescent EPICJERUS. Articular face of hind tibiae scaly. Support of deciduous piece very prominent. An- tennae rather slender, club distinct ANOMADUS. The deciduous pieces of the mandibles are shown in one species of EpicoBrus. They are falciform, moderately robust, obtusely pointed, with the upper inner side concave, smooth and shining. GRAPHORHINUS Sch. GrapJiorMnus Schonherr, Gen. Cure, i, p. 510 ; indicated but not de- scribed by Say. This genus has all the essential characters of Epiccerus, and differs only in the following particulars : Antennae shorter, scape slightly clavate, attaining the eyes, funicle 7-jointed, first two joints slightly larger than the otliers, 3-6 as broad as long, the seventh broader than long, and in close proximity to the club, . the latter broadly oval and pointed at tip. Eyes nearly round, slightly transverse. Cotyloid cavities of hind tibiae terminal {corbeilles ouvertes) and glabrous, tarsi beneath glabrous slightly fimbriate near the tips. By the above characters it will be seen that the genus differs from Epicmrus in the form of the antennae, the form of the posterior cotyloid cavities and the vestiture of the tarsi. The species below being the type of the genus, and as it diifers in several particulars from the Grapliorliinus as described by Lacordaire from other species, these should constitute another genus differing in the form of the antennas and the vestiture of the tarsi. G. vadosvis Say, Curcul. p. 8 ; Am. Ent., p. 267 ; Gyll. Schonh. Gen. Cure, i, p. 511. Body pyriform robust. Rostrum robust, quadrangular, slightly longer than the head, tip feebly emarginate and with a smooth triangular space limited behind by a chevron-lilve ridge behind which is a groove, above trisulcate and a moderately deep transverse impression between the eyes, median sulcus broad, lateral sulci short but deeper ; surface densely clothed with cinereous scales and sparsely punctured. Thorax slightly broader at base than long, sides arcuate converging to the apex, which is truncate,. 20 OTIORHYXCHID.E. [Horn. base ai'cuate; median line distinct, surface coarsely punctured and irregular, densely clothed with cinereous scales. Elytra broadl}^ oval, very curved, slightly broader at base than the thorax, indistinctly striate, striai with moderately coarse punctures, intervals alternately more convex, subcosti- form, surface densely scaly, scales cinereous with a narrow triangular basal space, submedian and subapical transverse bisinuous fascia of darker color. Body beneath coarsely but sparsely punctured, densely scaly. Legs densely scaly. Tarsi glabrous beneath. Length .28-38 inch ; 7-10 mm. This species has the same style of coloration as is seen in Epiccerus, but the darker elytral fasciae are at times absent. Occurs in Kansas and Texas, and is not rare. EPICJERUS Sch. Epicmrus Schonherr, Gen. Cure, ii, p. 323. Rostrum as long or slightly longer than the head, and nearly as broad, parallel, feebly canaliculate along the middle, tip feebly emarginate and with a triangular smooth space limited by an arcuate groove. Scrobes moderately deep, well defined, passing immediately beneath the eye and moderately arcuate. Ej^cs slightly longitudinally oval. Antennaj mode- rately long, scape gradually clavate, attaining nearly the middle of the eye; funicle 7-jointed, joints obconical, 1-2 moderately elongate, 3-4-5 nearly equal, 6-7 very slightly longer than last, not close to the mass which is elongate oval. Thorax variable, conical or cylindrical and narrowed in front. Scutellum very small. Elytra oval, broadly but feebly emarginate at base. Legs moderate. Tarsi spongy pubescent beneath. Body pyri- form or elongate, densely scaly. Cotyloid cavities of hind tibise internal, glabrous, tip of tibise truncate. First suture of abdomen arcuate at middle. Two species of Epicserus occur in our fauna. Thorax not wider at base than at middle, form more or less elongate, narrowed at middle imbrieatus. Thorax conical widest at base, body pyriform formidolosiis. E. imbrieatus Say, Journ. Acad. 1824, p. 317 ; Germ. Sch. Gen. Cure, ii, p. 267 ; Bohem. Sch. Gen. Cure, vi, 2, p. 280. Form variable. Rostrum feebly sulcate at middle and with a slight pre- ocular impression, surface sparsely punctured densely scaly. Vertex with impressed puncture. Thorax cylindrical narrowed at anterior third, sur- face with deeply impressed punctures in great part concealed by densely placed scales, cinereous along, the middle, darker at the sides. Elytra not striate but (when denuded) Avith rows of large deep punctures, surface densely scaly, color cinereous, with basal space, submedian irregular, and subapical sinuous fasciae darker in color. Body beneath and legs densely scaly, scales nearly white. Length .30-. 46 inch ; 7.5-11.5 mm. This species occurs in every portion of our territory east of the Rocky Mountains and south and west of Pennsylvania, and exhibits a very great variation in form and coloration. The elytra may be elongate oval or liorn. I BKACHYDERIN^r. 21 broadly oval, and the tip vertical or inflexed, sometimes compressed, like the prow of a vessel. In color the surface may vary to entire cinereous or even in great part fuscous. E. formidolosus Boh. Schon. Gen. Cure, vi, 2, p. 284. Body ovate. Rostrum feeijly sulcate at middle, pre-ocular impressions A^ery faint, vertex with impressed puncture ; surface sparsely punctured and densely clothed with pale cinereous scales. Thorax conical, sides feebly arcuate, shorter than broad at base, surface sparsely punctured, densely scaly. Elytra broadly oval, sub-inflated, but little longer than -wide, with rows of moderate punctures not closely placed, surface densely scaly with very short semi-erect scale-like hairs in the intervals. Body beneath and legs densely scaly. Length .16-26 inch ; 4-6.5 mm. The depth of the median rostral groove varies greatly in the specimens before me. The elytra continue very nearly in their curve the line of the sides of the thorax, and their color above is almost precisely that of the preceding species. Two specimens before me are totally cinereous, and two others fasciate. The erect scale-like hairs of the intervals while very distinct in the present species, are very indistinct in the preceding, so thai no special mention is made of them. The specimens before me are from Georgia and Florida, ANOMADUS n. g. Rostrum as long as the head and not narrower, sub-cylindrical, slightly dilated at tip ; tip triangularly emarginate and witli a smooth space. Scrobes deep, arcuate, passing slightly in front of the eye. Antennai sub-terminal, long ; scape gradually clavate ; funicle 7-jointed, joints 1-2 moderately long, nearly equal, joints 3-6 short, equal, joint 7 slightly longer and distant from the club which is elongate oval. Ej^es oval, slightly longitu dinal. Thorax cylindrical, sides moderately arcuate. Scutellum very small. Elytra regularly oval, conjointly emarginate at base, not wider than the thorax, humeri rectangular. Legs moderate, femora slightly clavate, tibiae straight. Cotyloid cavities of hind tibite internal, scaly, tip of tibia truncate. The supports of the deciduous mandibular pieces are much more promi- nent in this than in any other genus in the tribe. Following the system of Lacordaire one would be compelled to call this genus Artijnts. This latter cannot however be placed in the present "tribe, or even in this first division as the form of the meso- and metasternal side pieces agree with the genera allied to Cyphus as will be seen further on. A. obliquus, n. sp. Body oblong, narrower at middle. Rostrum very sparsely punctured, densely clothed with scales of pearly lustre, darker at the sides, with few erect scale-like hairs. Thorax slightly longer than wide, moderately convex, cylindrical, truncate at apex and base, sides arcuate, surface coarsely but sparsely punctured densely scaly, at middle pearly, at sides fuscous. Elytra 22 OTIOKIIYNCIIID^. [Horn. regularly oval, convex, with rows of moderate punctures not closely placed, surface densely scaly with short setts distantly placed in the intervals, scales pale cinereous with a common basal triangular space as long as wide, a very oblique fascia extending from behind the humeri to the suture, and an indistinct transverse sub apical fascia all fuscous. Body beneath and legs densely clothed with pearly scales with short seta? sparsely interspersed. Length .20 inch ; 5 mm. This insect reproduces exactly the form or coloration of some of the smaller specimens of Epiccerus imbricatus. One specimen from the Peninsula of Lower California, Group III. Barynotl. Rostrum moderately stout, longer and slightly narrower than the head, sub-cylindrical, slightly dilated at tip which is slightly notched, upper side finely sulcate. Scrobes deep, slightly arcuate passing immediately beneath the eyes, which are large, oval, and slightly oblique. Scape slightly clavate, attaining the middle of the eye, surface glabrous and slightly ciliate ; funi- cle 7-jointed, joints 1-2 longer, joint 3 conical, 4-7 rounded, club elongate oval. Thorax subquadrate, slightly narrower in front, apex truncate, base slightly arcuate. Scutellum small. Elytra moderately oval, convex, base broadly emarginate and slightly wider than the thorax, humeral angles dis- tinct in front. Thighs moderately clavate, anterior tibii« slightly arcuate, middle and posterior slightly dilated at tip, all slightly mucronate. Hind tibiaj with a double row of fimbri* surrounding an oval smooth space (cor- beilles caverneuses). Tarsi moderately dilated, pubescent beneath, claws free. BARYNOTUS Germ. Barynoius Germ. Ins. Spec. Nov. p. 337. This genus alone represents this group in our fauna containing one spe cies which occurs also in Europe. B. Sehoenherri Zetterst. Ins. Lapp. I, p. 187 ; Bohem. Schon. Gen. Cure, vi, 2, p. 250. Upad and rostrum as long as the thorax, rather coarsely and deeply but sparsely punctured, sparsely pubescent at sides and tip. Thorax sub-quad- rate, sides behind parallel, anterior third convergent, apex truncate, base broadly arcuate ; surface moderately deeply punctured, punctures mode- rately coarse with finer punctures in between, at sides punctures coarser and deeply circumvallate ; median line finely impressed ; surface sparsely clothed with pearly scales. Elytra slightly broader at base than thorax oval, moderately convex, base broadly emarginate, surface clothed with scales of pearly lustre with intermixture of cupreous and greenish scales, and with rows of moderately coarse punctures ; intervals alternately slightly more convex and (where denuded) moderately densely puuctulate. Body beneath coarsel3^ densely aud deeply punctured and sparsely pubescent, the pubescence denser on the metasternal side pieces. Legs black sparsely punctured. Length .33 inch ; 8.25 mm. Horn.] BRACHYDEEINI. 23 One specimen from the south of Newfoundland given to Dr. LeConte by M. Putzeys, of Brussels. The specimen is nearly entirely deprived of scales and black. Group IV Horinori. Rostrum longer and narrower than the head, subcylindrical at base, broader at tip, aloe moderately divergent, apex emarginate and with a V shaped elevated line, median line distinctly impressed. Scrobes deep in front, and moderately arcuate, posteriorly feebly marked and directed be- neath {Hormorus) or toward the lower border of the eye {Agasphmrops). Antennoe moderately long, attaining the middle of the eye in the former and barely reaching the eye in the latter. Eyes moderately or very promi nent. Metasternal side pieces almost entirely concealed by the elytra ; metasternum short. Intercoxal process broad, truncate, second abdominal segment but little longer tlian the third and separated from the first by a straight suture. Corbels ,of hind tibife open, claws of tarsi free. The supports of the deciduous pieces of the mandibles are very promi- nent, obliquely truncate and pointed at tip ; the deciduous pieces do not exist on any of the specimens before me. The open posterior corbels and the straight first abdominal suture would seem to place the two genera here included in Lacordaire's Blosyrides with which, however, they have but little in common. Two genera are thus separated : Scape attaining the middle of the eyes, the latter moderately prominent, without posterior orbit. HORMORUS. Scape barely attaining the anterior margin of the eye, the latter spherical, prominent and with posterior orbit AGASPHJEROPS. These two genera have the elytra at base feebly emarginate and some- what broader than the thorax, the humeri being broadly rounded in the latter and subrectangular in the former genus. There is also a close super- ficial resemblance to Otiorhynclius, especially in the second, where the sur- face is black and with few and inconspicuous scales. Hormorun is how- ever more ornate as will be seen in the description. I have endeavored to find genera to which these are allied, but with the work of Lacordaire and the limited foreign collection at my disposal I am entirely unable to do so, I must therefore describe them so far as to make them recognizable in our fauna and leave their relationships for future determination. HORMORUS n. g. Rostrum longer and narrower than the head, cylindrical at base, slightly dilated at apex, alje moderately prominent, tip acutely emarginate and with a V-shaped line and on each side a groove, median line finely impressed, terminating in a broad shallow impression and between the eyes in a slight puncture. Mandibular processes prominent, obliquely truncate and acute at tip. Mentum slightly retracted, in great part concealing the other oi'al 24 OTIORHYNCHID^. ^Ho^n organs. E3'es round, moderately prominent. Scrobes moderately deep in front, slightly arcuate and well defined, posteriorly vague and passing im- mediately beneath the lower margin of the eye. Antennae moderately long, scape gradually clavate, attaining the middle of the eye ; funicle 7 jointed, the first two slightly longer and subequal, 3-7 obconical, the last slightly broader but distant from the club which is oval, acute and dis tinctly articulated. Thorax oboval, without ocular lobes or fimbriae. Scutellum invisible. Elytra oblong oval, feebly emarginate at base and slightly wider than the thorax. Mososternal process nearly vertical. Meta sternum short, side pieces with distinct suture, but almost entirely covered by the elytra. Intercoxal process broad, truncate, second segment not as long as the two following united, separated from the first by a very nearly straight suture. Tibiae mucronate, the anterior and middle denticulate within, corbels of hind tibiae open, glabrous, tarsi normal, claws free, Body above sparsely scaly in irregular bands and patches. H. undulatus Uhler (Ghlorophanus) Proc. Acad., 1855, p. 416. Form elongate oval, dark brown, ornate with pearly scales. Head and rostrum as long as the thorax, moderately densely punctured, sparsely covered with pearly scales and recumbent scale-like hairs. Thorax slightly longer than wide, broadest in front of middle, sides arcuate in front, slightly convergent towards the base, apex truncate and with feeble con- striction behind the margin, disc moderately convex, median line distinctly impressed, surface coarsely and closely tuberculate, each tubercle punc- tured at summit and with a scale-like hair, lateral margin with a narrow line of pearly scales. Elytra oblong oval, narrower in the male, disc mode- rately convex, suddenly declivous at apex, surface with striaj of large, deep, closely placed punctures, intervals narrower and with granules moderately elevated ; surface ornate with pearly scales, arranged in the form of a hu- meral lunule and an irregular patch on each side of the declivity. Body beneath densely punctured, sparsely covered with scale-like hairs and with a patch of pearly scales on each side of metasternum. Legs piceous, sparsely hairy, femora with few scales near the tip. Length .30 inch ; 7.5 mm. Occurs in Canada, Maryland, Illinois. AGASPHJEROPS n. g. Rostrum much longer than the head, cj^lindrical at base, dilated in front, alae prominent, above with deep median groove, lip feebly trisinuate, a V- shaped elevated line and on each side a broad gi'oove. Supports of decidu- ous pieces prominent, obliquely truncate and acute at tip. Mentum filling the gular emargination. Scrobes deep and visible from above in front, feebly arcuate, gradually feebler posteriorly and passing immediately be- neatli the eyes. Antennae moderate, scape short, moderately robust, gradu- ally clavate, nearly attaining tlie anterior margin of the eye ; funicle 7- jointed, one and a-half times the length of the scape ; joints 1-2 sub-equal, longer than the others, 3-7 short, obconical ; club oval. Eyes round. Horn.] BRACHYDKRINI. 25 prominent, surrounded by a moderately deep orbital groove. Head short, deeply inserted, hemispherical. Thorax without ocular lobes or flmbriie. Scutellum invisible Metasternum short, side pieces nearly concealed, suture distinctly visible. Intercoxal process broad, feebly arcuate in front, second abdominal segment as long as the two following united, separated from the first by a straight suture. Anterior and middle tibiae feebly mu- cronate, corbels of hind tibiie open, tarsi normal, claws free. The general aspect of the unique species is such that, were the scapes of the antennaj long, I would have placed the genus in Otiorhynchini. A. nigra, n. sp. Elongate oval, Otiorhy nehuH-Yike, black, sub-opaque. Head and rostrum as long as the thorax. Rostrum deeply grooved at middle, coai'sely punc- tured and glabrous. Antennae piceous. Tliorax cylindrical, as long as wide, sides moderately arcuate, disc convex, surface with coarse closely placed tubercles, each perforated at summit and bearing an indistinct scale. Elytra oval, base feebly emarginate and wider than tlie thoi'ax, humeri broadly rounded, disc moderately convex, surface with rows of coarse, sub-quadrate punctures, intervals with flattened tubercles each perforated and with an indistinct scale. Body beneath black glabrous, coarsely and densely punctured. Legs black, more sparsely punctured. Length .30 inch ; 7.5 mm. Two specimens. Mendocino, Cal. Group V. Trig:onoscat?e. Anterior tibiae with the outer apical angle prolonged. Articular surfaces of liind tibiae strongly cavernous and scaly. TRIGONOSCUTA Motsch. Trigonoscuta Motsch. Etudes Entomol. I, 1852, p. 79. Rostrum sub-cylindrical, slightly longer and narrower than the head, separated from the head by a fine imi^ressed line, above finely canaliculate, tip truncate. Scrobes deep, arcuate, passing near the lower margin of the eyes. Antennae moderately long ; scape gradually clavate, passing 'the eyes posteriorly ; funicle 7-jointed, 1-3 longer sub-equal, 3-7 obconical, gradually shorter and broader, club oval. Eyes oval, slightly oblique. Tlio- rax sub-tranverse, truncate at base and apex. Scutellum small, triangular. Elytra oval (^ or broadly oval 9> humeri rounded. Legs moderate, femora moderately clavate, anterior tibiae \lilated at tip, and with the mid- dle tibiae slightly swollen at middle ; hind tibiae very obliquely truncate, the articular surfaces cavernous and scaly. Tarsi spongy and villous be- neath, median line glabrous last joint long, claws moderate, free. Inter- coxal process very broad, slightly rounded in front. Second segment of abdomen longer than the two following united, separated from the first by an arcuate suture. Body scaly and hairy. The supports of the deciduous pieces are not prominent. These pieces are rather long, very feebly arcuate and obtuse at tip. The generic des- PROC. AMER. PHILOS. SOC. XV. 96. D 26 OTIORHYXCHIDJE. [Horn. cription given by Motscliulsky is so extreme!}' vague aud short as to be entirely valueless, and in strict justice the genus should be credited to Lacordaire. T. pilosa Motsch. Etudes Eatom. I, 1852, p. 79 ; Lacord. Genera, Atlas pi. 61, flg. 5, a-b. Form oval, robust, surface densely covered with cinereous scales and moderately long greyish hairs sparsely placed, elytra irregularlj^ varie- gated with fuscous. Head and rostrum as long the thorax, densely scaly and sparsely pilose. Antenn* rufous, liairy. Thorax broader than long, narrower in front, sides strongly arcuate, disc convex, surface moderately densely scaly. Elytra rather broadly oval, humeri broadly rounded, sides feebly arcuate and slightly acuminate posteriori}', disc convex, with rows of moderately fine punctures, surface densely scaly and sparsely pilose. Body beneath moderately densely scaly and with rather longer hairs than the upper surface, last three segments of ahdomsn distinctly pubescent. Legs more sparsely scaly and with rather long greyish hairs. Length .32 — .36 inch ; 5.5 — 9 mm. The males have the metasternum and abdomen broadly concave. The scales covering the elytra and, in fact, the entire upper surface are very variable in coloration. The ground color is a cinereous usually very irregu- larly mottled with fuscous. Occasionally specimens occur in which the elytra are pale ochreous with an irregular band on the middle of each ely tron becoming gradually broader behind, nearly uniting at the suture. This species is not rare on the sea-coast at San Francisco, Cal. Group VI. Calyptilll. Rostrum not longer than the head, sub-quadrangular, very slightly nar- rowed toward the tip and but little narrower than the head. Eyes round, coarsely granulated and almost entirely concealed from above by a small tubercle. Scrobes lateral, arcuate, deep. Thorax without ocular lobes or fimbriae. Scutellum very indistinct. Mesosternal side pieces very un- equal. Metasternum short, side pieces moderate, suture obliterated. Ab- domen normal, intercoxal process broad truncate in front. Tarsi with coarse spinous hairs beneath, third joint not wider than the second and feebly emarginate, last joint moderately long, claws fi'ce. Anterior tibiae feebly mucronate and digitate at ti]) with four or five coarse spinules, articu- lar cavities of hind tibine cavernous. The gular emargination is moderately, large and without sub-mental peduncle. The mentum is nearly semicircular in shape and partially ex- poses the other oral organs, the maxilhe being slightly visible at the sides and the ligula at tip. The combination of characters above given will be found very dilUcult to place in any tribe of Lacordaire's system. The genus can not be called Phanerognath, as the mentum conceals the greater portion of the oral or- gans, and I am equally at a loss for a position in the Adelognath series. The occurrence of narrow tarsi in this portion of the series is certainly Horn.] OPHKTASTIXI. 27 a remarkable circumstance and serves to illustrate tlie almost utter impossi bility of dividing any portion of the Rhyncliophoi-us sub-order without apparently doing violence to some important cliaracter. As the present is the first occurrence of this character, it might be here observed that two others always accompany it (in our fauna) viz. : — The approximation of the last joint of the funicle to the club and the tarsi more or less spinous be- neath. Ophryastes, Bhigopsis, and Cimbocera, the only genera of Otio- rhynchidae in our fauna with narrowed tarsi, all have the other two char- acters. The tarsi may, however, be more or less spinous in other genera, but the antennal character never occurs without narrowed tarsi. CALYPTILLUS n. g. Rostrum not longer than the head, sub-quadrangular, slightly narrower in front, a feeble trace of transverse impression at base, above flat, tip broadly emarginate ; head with a tuberculiform process over each eye. Scrobes deep, arcuate, well defined, passing beneath the eyes. Eyes round, moderately convex, coarsely granulated. Antennae moderate, scape graduallj' stouter, slightly arcuate, passing the eyes behind ; funicle 7- jointed, very little longer than the scape, first joint longer and stouter, second nearly as long ; 3-7 short gradually broader, the last very close to the club, the latter oval, distinctly articulated. Thorax transversely oval, neither lobed nor fimbriate behind the eyes. Scutellum scarcely visible. Elytra broadly oval, base feebly emarginate, humeri broadly rounded. Femora rather feeblj- clavate. Tibiae especially the anterior with coarse spinules at tip. Metasternum short. Second segment of abdomen as long as the two following, first suture arcuate at middle. Body densely scaly and hispid. C. eryptops, n. sp. Form broadl}^ oval, densely covered with brownish cinereous scales, irregularly variegated with darker color. Head and rostrum as long as the thorax, densely scaly and with few short erect clavate hairs. Thorax oval, broader than long, apex and base truncate, sides regularly arcuate, disc moderately convex, surface granulato punctate, sparsely scaly near the sides and with short erect clavate hairs. Elytra broadlj" oval, moderately convex, one-half wider than the thorax, humeri broadly rounded, sides feebly arcuate, apex obtuse, surface faintly striate, striae with distant punc- tures, intervals flat, densely covered with brownish cinereous scales, irreg- ularly clouded with darker color and each interval with a row of \ery short sub-erect scale-like hairs, slightly clavate. Body beneath covered as above. Legs sparsely scal\^ Length .10 inch ; 2.5 mm. The form and general aspect of the species is that of a TracTiypMctus. The surface color deprived of scales is dark castaneous. One specimen, New Mexico. Tribe IL ophkyastini. This tribe as here interpreted, corresponds very nearly with the Leptops- ides of Lacordaire, as far as our genera are concerned. Lacordaire in 28 OTIORHYXCHID^. ^Hom. eludes very heterogeneous material as must be evident to even a superficial observer. No one can deny the necessity of approaching Entvmus and its ■ allies to Gyplms, forming a distinct tribe, however, from the latter, and at the same time Leptops must be similarly dealt with, and should probably be placed with the Entimides. As far as I have studied the majority of the genera of the group Leptopsides vrais, should remain in the present tribe. As Leptops belongs to my second division, I have been compelled to change the name of the tribe, and have adopted that of our most prominent genus. As interpreted in the present paper, this tribe has the following charac- teristics : Rostrum moderately or very robust, quadrangular or sub-cylindrical. Mandibles robust, never prominent or laminiform at tip, scar round, very distinct and sometimes prominent. Mentum large or at least moderate, concealing in great part the other oral organs, sub-mentum rarely feebly pedunculate. Scrobes lateral, rarely (Phyxelis) visible from above, di- rected either toward the middle of the eyes or inferiorly. Antennae mode- rate, scape always attaining at least the eye, funicle 7-jointed, the last usually free, rarely (Cimbocera and Ophryastes) contiguous to the mass. Thorax always with distinct ocular lobes which are frequently fimbriate. Metasternum usually very short, side pieces usually narrow, suture nearly always visible. Mesosternal side pieces unequally divided, episternum and elytral margin contiguous. Intercoxal process at least moderately, sometimes very broad {Rhigopsin). Abdomen variable, second segment longer than the two following luiited (except in Ophryastes), and with the first suture arcuate (except in Ophryastes and some Strangaliodes). Tarsi variable, usually pubescent beneath, sometimes spinous ; third joint usually deeply bilobed and broader, rarely simply emarginate and not wider than the second, (certain Ophryastes, and in Cimbocera and Bhigopsis). Claws always free. Body always apterous. The tribe contains moderately homogeneous material but with evident tendencies in some of the genera to closely approximate those of neighbor- ing tribes, especially is this the case in those genera with the feebler ocular lobes. Thus Phyxelis approaches Trachypliloeus and Phymaimus to Otiorhynclius. There is very little tendency to approch Division II, Phyinatinus alone having the mesosternal side pieces nearly equally divided but the metasternal parapleurae are not at all like those of that division. The genera of the tribe form the following groups: Rostrum robust, quadrangular, more or less distinctly trisulcate above. Scrobes rapidly inferior, well defined. Eyes always narrow and acute below, partially concealed by the ocular lobes. Abdomen with second segment rarely as long as the two following together, first suture straight. Intercoxal process moderately wide Ophryastes. Horn.] OPHRYASTINI. 29 Abdomen with second segment longer than the two following together, first suture strongly arcuate. Intercoxal process ver}'- broad Rhisropses. Kostrum less robust, sub-cylindrical, never sul- cate above. Scrobes feebly inferior, usually directed toward the ej^es or visible from above and badly defined. Eyes oval, not acute below and usually entirely free. Scrobes entirely lateral Stran^aliodes. Scrobes visible from above ■ Phyxeies. The groups as above defined are very distinctly limited in our fauna, the last group alone being of doubtful value. In this tribe, occur genera with the narrow third tarsal joint, which however, is not of the form seen in the Byrsopid^. This character will be spoken of at greater length in the genera in which it occurs. Group I. Ophryastes. Rostrum robust, angular, more or less distinctly trisulcate, tip feebly emarginate with a small triangular smooth space. Antennae moderately robust, scaly, scape gradually thicker, nearly attaining the eyes, funicle 7-jointed, the last joint contiguous to the club which is oval. Scrobes deep, passing obliquely downwards in front of the eyes. Eyes oval, transverse, pointed beneath. Thorax variable in form, either oval or transverse, and with callosities at the sides. Elytra oval or oblong. Scutellum wanting. Abdominal sutures straight, second segment equal to, or very little longer than, the third. Tibiae not mucronate at tip. Tarsi variable. Claws free. The articular surfaces at the tips of the hind tibiae are very nearly termi- nal and in great part scaly. Lacordaire calls them " caverneuse," hut I think without reason (for the majority of the species). They are cavernous in some Eupagoderes. The mesosternal side pieces are very unequal, the epimeron being very small. The metathoracic episternum is moderately broad and the suture more or less distinct. In all the species the ophthal- mic lobes are of moderate size and fimbriate. The surface of the body is densel}^ scaly and without any pubescence. Two genera appear to be indicated in our fauna. Tarsi slender, third joint not wider than second, and simply emarginate. Sides of thdVax with tuberosities more or less marked. Tips of tarsal joints beneath spiniform OPHRYASTES. Tarsi dilated, third joint usually wider than second and deeply bilobed. Thorax oval without tuberosities, tarsi beneath not spinous at tip EUPAGODERES. In the first genus the elytra are broadly oval, in the second elongate oval. In the latter also, the legs are longer. 30 OTrORHYNCHIDJE. ^Hom. OPHRYASTES Sclionh. Ophrt/astes Schonherr, Curcul., i, p. 508. The species of this genus as restricted by the preceding table, are not numerous, and have a facies at once distinguishing them from the follow- ing genus. They are all of robust form, elytra rather broadly oval and the surface densely scaly, either cinereous or whitish, ornamented with stripes or spots of a much darker color. Considerable variation within specific limits is found, not only in color but also in form. All the species with but one exception, have at the base of the rostrum a distinctly marked transverse impression and the vertex thus appears convex. The tenth elytral stria in the larger species is very distinct at its basal third, and as distant from the ninth as the latter is from the eighth, at middle the stria is not evident, and at its apical third very close to the ninth. In the smaller species, in which also the thoracic tuberosities are very feeble, the tenth stria is entirely obliterated. The deciduous mandibular piece is moderately long, acute at tip, slightly arcuate. This piece when cast leaves merely a a scar without any process. In accordance with the characters our species may be tabulated in the following manner: Tenth elytral stria distinct at basal third. Thoracic tuberosities large I Tenth elytral stria almost entirely obliterated. Thoracic tuberosities feeble 2 1-Rostrum without transverse impression. Median groove attaining the occiput vittatus. Rostrum with feeble transverse impression. Me- dian groove attaining the front tuberosus. Rostrum with very distinct impression. Median groove rostral only latirostris. 2-Elytra produced at base, humeri very oblique sulcirostris. Elytra truncate at base, humeri feebly prominent porosus. O. vittatus Say, {Liparus) Journ. Acad, iii, p. 316 ; Genn. Sch. Gen. Cure, i, p. 509 ; Lee. Proc. Acad, vi, p. 443 ; Lee, Col. Kansas, 1859, p. 18, pi. 1, fig. IB. Rostrum trisulcate, lateral sulci extending from opposite the insertion of the antennae to a point opposite the eye, deep, slightly arcuate above ; median sulcus extending from the tip nearly to the occiput. Thorax nearly twice as wide as long, sides strongly divergent from apex and near base suddenly narrowed, median line distinctly impressed, surface deeply punctured and irregular. Elytra regularly or oblong oval, vaguely striate and with rows of moderate punctures, interspaces slightly convex, surface densely covered with cinereous scales, the sutural and alternate interspaces black. Body beneath and legs densely covered with whitish scales. Length .34-. 52 inch ; 9—18 mm. This species may be at once distinguished by the sculpture of the head Horn. OPimYASTLNTI. 31 and the vittate elytra It varies greatly in form primarily from sexual differences. Occurs in Kansas and New Mexico. Not rare O. tuberosus Lee. Proc Acad, vi, p. 443. Rostrum trisulcate, sulci rather broad and shallow, median passing slightly on the front, lateral extending above the eyes, transverse impres sion at base of rostrum feeble. Thorax nearly twice as wide as long, con- stricted at apex and base, sides (tubei'osities) slightly divergent and notched at middle, surface deeply punctured and very irregular. Elytra regularly oval with rows of large, deeply impressed punctures ; surface densely covered with cinereous scales and maculate with black. Body beneath and legs densely covered with whitish scales, femora with black spots near the tip. Length .40-. 50 inch ; 10-12 mm. This species occurs rather abundantly in Colorado and New Mexico. O. latirostris Lee, Proc. Acad, vi, p. 443; validus 9 Lee, Proc. Acad, vii, p. 225. Rostrum deeply transversely impressed at base (front convex) trisulcate, lateral sulci moderately deep, median sulcus broad, shallow, neither ex- tending beyond the transverse impression. Thorax nearly twice as wide as long, anteriorly moderately at base suddenly and strongly constricted, sides divergent from apex feebly notched at middle ; surface deeply punc- tured and very irregular. Elytra regularly oval, feebly (^ or not 9 striate with moderately impressed punctures. Body beneath and legs densely covered witli whitish scales. Length .44-.64 inch ; 11-16 mm. The elytra are densely covered with cinereous scales, and with small irregularlj^ interspersed fuscous spots, but to a much less extent than in the preceding species. From both the preceding species the present differs in the convex front, the rather deep transverse impression of the base of the rostrum as well as the form of the grooves. The thorax does not differ greatly in form in the three species, but is much less collared in this than in tuberosus. The median line is impressed in some and obliterated in other specimens. Occurs in Kansas, New Mexico and Utah. O. sulcirostris Say, (Lipanis) Journ. Acad, iii, 1824, p. 316 ; Gyll. Sch.Gen. Cure, i, p. 509; Lee, Proc. Acad, vi, p. 443; ligatus Lee, loc. cit Rostrum deeply transversely impressed at base, median sulcus moderate, lateral sulci short. Front convex. Thorax one-third wider than long, at apex moderately, at base strongly constricted, sides divergent from apex moderately tuberose, thorax deeply punctured and irregular. Elytra oval, humeri oblique, surface not or only obsoletely striate and with rows of inoderate punctures, intervals feebly conxex ; surface densely covered with pale cinereous scales maculate with fuscous, sometimes entirely plumbeous. Body beneath and legs densely covered with white or plumbeous scales Length .32-36 inch, 8-9 mm. 32 OTIORHYXCHID^. [Horn. The color of the surface vestiture varies greatly. In some specimens it is entirely plumbeous, in many cinereous obsoletely fusco- maculate, while in ligatus (a 9) the fuscous spots are confluent and the elytra subvittate. The deciduous mandibular pieces are of slender conical form, very feebly arcuate and not long. Occurs in Kansas, Colorado and Utah. O. porosus Lee, Proc. Acad., 1845, p. 225. Rostrum moderately transversely impressed at base, above trisulcate, median sulcus broad and shallow, lateral sulci short and deep. Thorax not twice as wide as long, sides with feeble tuberosity moderately arcuate, base moderately constricted ; surface coarsely punctured and irregular, median line moderately impressed. Elytra oval, base truncate, humeri rectangular slightly broader than the thorax at base, with striaj of moderately large punctures, surface with plumbeous scales. Body beneath and legs covered with plumbeous scales. Length .36 inch ; 9 mm. This species and the preceding have the tenth elytral stria entirely ob literated, and the tuberosities of the thorax feeble, in both of which characters tliey differ from all the species which precede. One specimen collected by Maj. Webb while on the boundary survey between the United States and Mexico. EUPAGODERES, n. g. This genus contains those species, formerly placed in Ophryastes, with- out lateral thoracic tubei'osities. The tarsi are more dilated, the joints proportionately shorter and the third more distinctly bilobed. The distal angles are not produced in a spiniform process, a character by no means constant, however, in Ophyrastes. In this genus the articular cavities of the hind tibiae become internal and the tip of the tibia truncate, showing an oval scaly space. The transition from the double apical fringe, which is usual, to the truncate tip with the two rows of fimbriae surrounding an oval space is in this genus so gradual, even with the limited number of species, that it seems to indicate the little value of the characters drawn by Lacordaire from " corbeilles ouvertes" and " corbeilles caverneuses." The deciduous mandibular piece is similar to that of Ophryastes. As in the latter genus some species have the rostrum and vertex continuous, the greater number, however, have a sinuation at the base of the rostrum. 0. Sallei Sell, from Mexico belongs here. The following are our species : 1 — Vertex fiat, rostrum without basal impression. Rostrum sulcate, thorax finely punctured speciosus. Rostrum sulcate, thorax coarsely and deeply punc- tured sordidus. Rostrum not sulcate, thorax coarsely and deeply punctured deeipiens. 2 — Vertex convex, rostrum with basal impression. Elytral striae broad, punctui'es large and close. Horn.] OPHRYASTIXr. 33 Apex of hind tibiae narrow, disc of tliorax coarsely punctured. Rostrum with three sulci, elytra oblong argentatus. Rostrum with median sulcus only, elytra broadly oval lucanus. Apex of hind tibiaj truncate with broad oval space. Thorax rather finely punctured desertus. Elytral striae fine, punctures coarse, thorax very coarsely aiid deeply punctured varius. Elytral stride fine, punctures fine. Intervals unequal, elytra vittate geminatus. Intervals equal, elytra uncolorous plumbeus. In the species belonging to the first group the median sulcus of the ros- trum extends on the front. In the second group the sulcus is rostral and extends to the transverse impression only. E. speciosus Lee. {Ophryastes) Proc. Acad, vi, p. 444. Form oblong, vertex flat. Rostrum without transverse basal impression, trisulcate, median sulcus extending from the tip to the front, terminating in a small fovea, lateral sulci on the sides of the rostrum, deep and angula- ted; surface sparsely punctured, densely scaly with white, middle and sides plumbeous. Thorax broader than long, sides rather strongly arciuite, apex and base with deeply impressed line at the sides, median line finely impressed ; surface rather finely punctured, even, covered with dark plumbeous scales ; on each side of middle an irregular white vitta. Elytra oblong oval, finely striate, stria; serrately punctured, intervals flat, unequal, surface densely covered Avith dark plumbeous scales, the narrower intervals and sides white. Body beneath and legs white. Length .74 inch ; 19 mm. One of the most conspicuous Rhynchophora in our fauna. The tenth elytral stria is composed of a few punctures close to the margin. The cotyloid cavities of the hind tibiae are feebly cavernous and scaly. Occurs in north-western Texas. E. decipiens Lee. {Ophryastes) Proc. Acad, vi, p. 445. Form oblong. Vertex not more convex. Rostrum without basal im- pression, median sulcus replaced by an obsolete fovea, lateral sulci very short ; surface sparsely punctured, densely covered with whitish scales. Thorax not broader than long, sides strongly arcviate, apex and base trun- cate, surface deeply perforato-punctate, not uneven. Elytra oblong oval, finely striate, striae with rather distant punctures, intervals equal, flat, sur- face densely covered with dark cinereous scales. Botly beneath and legs white. Length .28-. 44 inch ; 7-11 mm. Posterior cotyloid cavities strongly cavernous. This species may be easily known by the sculpture of the rostrum. Occurs in Texas, New Mexico and Arizona. PROC. AMER. PHILOS. SOC. XV. 96. E 34 OTIOEHY]S'CHID.E. [Horn. E. sordidus Lee. ( Ophryastes) Proc. Acad, vi, p. 445. Form oblong oval. Rostrum trisulcate, median sulcus attaining the base of the rostrum, lateral sulci deep and straight, no transveree hasal impres- sion. Thorax slightly broader than long, sides moderately arcuate, base and apex truncate, surface sparsely punctured and slightly uneven. Elytra oval, strife replaced by rows of moderate punctures, intervals equal, sur- face densely covered with cinereous scales and obsoletely maculate. Body beneath and legs nearly white. Length . 36 inch ; 9 mm. This species resembles the preceding but is less elongate, the elytra wider at base, and the rostrum differently sculptured. Some specimens are macu- late nearly as in Oph. tuberosus. The posterior cotyloid cavities are dis- tinctly cavernous. Occurs in Kansas and New Mexico. E. argentatus Lee. (Ophryastes) Proc. Acad, vi, p. 444. Form oblong, surface covered with pearly white scales, vertex convex. Rostrum with distinct basal impression, above trisulcate, median sulcus fine and long, lateral sulci deeper, shorter and arcuate ; surface sparsely punctured. Thorax broader than long, sides arcuate, base and apex trun- cate, median line distinct, surface deeply perforato -punctate. Elytra oval, slightly oblong, with broad shallow striae with large closely placed punc- tures ; intervals slightly convex. Body beneath and legs silveiy white. Length .60 inch ; 15 mm. The cotyloid cavities of hind tibife are scarcely at all cavernous. This is the third species in size of the genus and may readily be known by the characters given in the table. Occurs in the desert regions of south-eastern California. E. lucanus, n. sp. Form oblong, moderately robust. Head and rostrum as long as the thorax. Rostrum Avith distinct transvei'se impression at base, and with fine median line only, surface punctured covered with intermixed cinereous and fuscous scales. Thorax nearly spherical, truncate at apex and base, slightly wider than long, median line broad but shallow, surface coarsely punctured covered with cinereous and fuscous scales with a broad, darker line on each side. Elytra oval, slightly longer than twice the thorax, with rather broad but very shallow striae with coarse distant punctures, intervals slightly convex, surface with dark cinereous scales irregularly marmorate with fuscous. Body beneath and legs covered with cinereous scales. Length .28 inch ; 7 mm. The cotyloid cavities of the hind tibice are feebly cavernous and the oval space at tip is very narrow and glabrous. One specimen from Cape San Lucas, Peninsula of California. E. desertus, n. sp. Form oblong, moderately robust, surface densely covered with silvery white scales. Rostrum with rather deep transverse impression at base, median sulcus shallow, indistinct, lateral sulci moderate, not deep, surfixce Horn.] OPHRYASTINI. Oi) sparsely punctured. Thorax slightly wider than long, narrower in front, sides feebl}'- arcuate from apex to base, behind the apex a transverse im- pression moderately coarsely jjunctured, at sides near middle a feeble im- pression, median line finely impressed ; disc very sparsely and compara- tively finely punctured, at sides slightly rugulose and more coarsely pune tured. Elytra oblong oval, three times as long as the thorax, one and a-half times as long as wide, strife broad and shallow, punctures coarse and serrate, intervals feebly convex. Body beneath and legs densely covered with whitish scales. Length .88 inch ; 32 mm. Posterior cotyloid cavities strongly cavernous, tip of tibiie truncate with broad oval scaly space. This species is the largest of the genus. One specimen found dead at Carisa Creek on the borders of the Colorado Desert of California. E. varius Lee. {Ophryastes) Proc. Acad, vi, p. 444. Form oblong. Rostrum transversely impressed at base, median sulcus feeble, lateral sulci deep but short and ai'cuate, surface sparsely punctured covered with silvery white scales. Thorax cylindrical, sides moderately arcuate, apex and base truncate, median line finely impressed, disc coarselj- and rather closely punctured, surface covered with silvery white scales with a median and lateral plumbeous stripe. Elytra oboval, broadest be hind the middle, finely striate and with coarse punctures not closely placed, surface with silvery white scales irregularly marmorate with plumbeous spots sometimes forming two vittae. Body beneath and legs silvery white. Length .30-.44 inch ; 7.5-11 mm. The cotyloid cavities of the hind tibite are moderately cavernous, the space at the tip very narroAvly oval and scaly. This species in form and color resembles dectpiens, but may be known by the form of the rostrum. Occurs in the desert regions of California and Arizona. E. geminatus, n. sp. Form oblong oval, moderately robust. Rostrum transversely impressed at base, above trisulcate, median sulcus finely impressed, lateral sulci short but deep, surface sparsely punctured, covered with whitish scales, a plum- beous space in front of each eye. Thorax broadly oval, wider than long, widest at base, sides strongly arcuate, median line rather deeply impressed, disc coarsely punctured, surface densely clothed with whitish scales with a broad plumbeous stripe on each side. Elytra regularly oval, three times as long as thorax and a third longer than wide, finely striate, striaj obsoletely punctured, intervals flat, unequal ; surface densely covered with white scales, strise narrowly black, narrow intervals slightly darker in color than the others. Body beneath and legs white. Length .30-. 50 inch ; 7.5- 12.5 mm. The posterior cotyloid cavities are strongly cavernous and the tip of the tibiae narrowly oval, the space scaly. A very distinct and striking species. Not rare in Owen's Valley, California. E. plumbeus, n. sp. Oval moderately robust, surfiice densely covered with cinereous or plum- 36 OTIORHYNCHID^. [Horn. beous scales. Head and rostrum as \n geminatus, scales unicolorous. Thorax more than a-half broader than long, apex slightly narrower, sides strongly arcuate, disc coarsely but sparsely punctured surface witli plumbeous scales, a darker vitta at the sides. Elytra broadly oval moderately intlated, finely striate, strife indistinctly punctured, intervals equal, flat, surface densely covered with cinereous or plumbeous scales. Body beneath as above. Length .24-. 36 inch ; 6-9 mm. Cotyloid cavities of hind tibiae moderately cavernous, tip of tibiae with narrow oval scaly space. This species is of more robust facies than any other of the genus and may be known by thC/ characters given in the table. Not rare in Owen's Valley, California. Group II. Khlgropses. Rostrum quadrangular, broader in front, deeply sulcate above. Eyes narrow, acute beneath. Tarsi not dilated, beneath spinulose, thii"d joint emarginate but not broader than the second. Corbels of hind tibiae feebly cavernous. Posterior coxfe very widely distant. Intercoxal process broad, truncate, second abdominal segment much longer than the two following united, separated from the first by a strongly arcuate suture. Metasternal side pieces connate with the metasternum without evidence of sutures. Seventh joint of the funicle of the antennaj very close to the club. The form and vestiture of the tarsi separate this group from the Stranga- liodes and the structure of the abdomen from the Ophryastes. The rostrum and the scrobes are not unlike those of Ophryastes. One genus occurs in our fauna. RHIGOPSIS Lee. RMgopsis Lee. American Naturalist, 1874, p. 459. Rostrum c^uadrangular, slightly longer than the head, dilated at tip and obliquely truncate above, upper surface deeply trisulcate, tip feebly emar- ginate. Mentum slightly retracted. Scrobes deep, well-defined, slightly arcuate in front, directed toward the lower border of the eye. Eyes nar- row, acute beneath. Antennae moderate, scaly, scape gradually stouter at- taining the margin of the eye ; funicle 7-jointed, first two joints longer, stouter and nearly equal, 3-7 short, gradually broader, club oval, indis tinctly articulated. Ocular lobes prominent. Scutellum indistinct. Elytra oval, feebly conjointly emarginate, humeri prominent, tuberculate. Meta- sternal side pieces connate with the body without suture. Hind coxae very widely distant, intercoxal process broad, truncate. Second segment of ab- domen longer than the two following united, separated from the first by a strongly arcuate suture. Tibiae not mucronate at tip, corbels of hind tibiae feebly cavernous. Tarsi spinous beneath third joint feebly emarginate, not wider tlian the preceding. Claws moderate, free. Body densely covered with scales, almost entirely obscured by exudation coating. The tarsi of this genus although narrow are by no means of the Byrsopide Horn.] OPHRYASTINI. 37 type and this character appears to be of minor importance in classification in the present tribe, as two other genera already mentioned have the third joint feebly emarginate and not wider than the third. Rh. effracta Lee. Amer. Nat., 1874, p. 459. Form oval, color piceous densely covered with cupreous scales almost entirely obscured by a dark brown exudation. Head and rostrum as long as the thorax. Rostrum above trisulcate, tip obliquely truncate, front slightly concave and with a hood-like tubercle over each eye. Thorax broader tlian long, sides at anterior third more rapidly narrowing, posterior two-thirds feebly converging to the base, surface tuberculate and very irregular. Elytra oval, disc slightly flattened, humeri slightly oblique and with moderately large tubercle, from which a ridge or costa arises forming the lateral margin ; disc bicostate, the outer terminating in a tubercle at the sides of the declivity, intervals with large fovese separated by smaller ridges uniting the costte ; tip of elytra with smaller tubercle on each side. Body beneath scaly obscured with exudation and with short scale-like liairs. Legs dark brown, sparsely scaly and with fine scale-like hairs. Length .20-.26 ; 5-6.5 mm. The appearance of this insect is that of a miniature Bhigus, or of some Leptops. Its afiinities appear to be rather with Ophryastes than with any other genus. Occurs in California feeding on the Yucca. Group IIL Strangaliodes. The group as made up in the following table is not precisely that in- tended by Lacordaire. There are without doubt several genera which should be placed in Iris Eremnides, but with the exception of PliyxeliH I can find no genus presenting such marked differences in the form of the scrobes as to render it possible t'o draw the line with any degree of accuracy between those genera in which the scrobes are strictly lateral and those with the scrobes arcuate and directed inferiorly. , The arrangement of the genera in the following table exhibits a gradual transition in the form and length of the rostrum, from Diclwxenus which approaches most nearly Ophryastes in this respect as well as in the struc- ture of the scrobes and abdomen, to Phymatinus with a long rostrum almost entirely lateral scrobes and normal abdomen. Cimboeera by its narrower tarsi and the structure of the antennae approaches OpJiryastes in another direction. Melamomplius resembles almost Y)vec\?,e\j Amomphua in form. I have not been able to obtain anj^ characters from the form of the corbels of the hind tibiae, but have been compelled to group seven genera by a character almost as feeble, the presence or absence of mucro at the tip of the hind tibiae. Our genera exhibit sucli a similarity of structure that it is almost impossible to define tlieir limits and with the addition of new material generic definition will be reduced to a work of extreme difliculty. o6 OTIOEHYNCHID^. DICHOXENUS. ANAMETIS. The following table is the result of a study in which it has been my en- deavor to develop a serial arrangement exhibiting, First, a gradual transition in the form of the rostrum, from the more ro- bust to the elongate. Second, the tendency of the scrobes to change from the sti'ongly arcuate to the nearly straight and shallow form. Third, the structure of the abdomen, with the three segments nearly equal (as in OpJiryastes), to those with the abdomen of normal structure. First suture of abdomen straight ; second segment rarely as long as, never longer than the two following united ; hind tibiae usually mutic. Scrobes deep, well defined, at least moderately arcuate, passing inferiorly. Scrobes strongly arcuate, passing beneath at a distance from the eyes Scrobes moderately arcuate, passing imme- diately beneath the eye Scrobes evanescent posteriorly, badly defined, nearly straight, directed toward the lower angle of the eye. Metasternal side i)ieces rather wide, suture distinct. Hind tibiae distinctly mucronate ; corlicls cavernous Hind tibite not mucronate ; corbels open. . . Metasternal side pieces indistinct, suture ob- literated. Hind tibiiB not mucronate ; corbels open. . First suture of abdomen arcuate ; second segment as long as, and frequently longer than the two following united. Seventh^oint of funicle distant from the club ; third joint of tarsi broader than the second, tarsi densely pubescent beneath. Hind tibiae not mucronate. Scrobes strongly arcuate, moderately deep ; passing rapidly beneath at a distance from the eyes. Support of deciduous piece of mandible not prominent. Anterior tibiae denticulate within ; sur- face of body scaly without hairs ; cor- bels of hind tibiae open Anterior tibi;e not denticulate ; surface scaly and hairy ; corbels sub-cavern- ous MELAMOMPHUS. DYSLOBUS. PANSCOPUS. ORIMODEMA. MIMETES. Horn.] OPHRYASTINI. 39 Support of deciduous piece prominent ; anterior tibiae not denticulate. Sur- face scaly and with erect hairs. Corbels of hind tibiaj cavernous ; hu- meri entirely obliterated DIAMIMUS. Corbels of hind tibiie open ; humeri rec- tangular PERITAXIA. Scrobes very feebly arcuate, evanescent pos- teriorly, directed toward the lower an- gle of the eye, and short THRICO MIGUS. Hind tibife distinctly, usually rather strongly mucronate. Rostrum longer and narrower than the head and more or less auriculate. Front convex separated from the rostrum by a transverse impression ; side pieces of metasternum distinct, suture entire.. AMNESI.A . Front flat, rostrum continuous on the same plane and usually flattened above ; side pieces of metasternum indistinct, suture in great part obliterated. Body above finely tuberculate, scales large PH YMATINUS. Body not tuberculate, scales small and denser NOCHELES. Seventh joint of funicle contiguous to the club, third joint of tarsi feebly emarginate, scarcely broader than the preceding. Tarsi sparsely setose beneath CIMBOCERA. DICHOXENUS n.g. Rostrum larger and slightly narrower than the head, slightly transversely impressed at base, feebly convex above, sub-quadrangular, alse very feebly prominent, tip emarginate and with a small smooth space. Scrobes lateral deep, well defined, arcuate, passing rapidly beneath the head at a distance in front of the eyes. Antennae moderate, sub-apical ; scape gradually cla vate, scaly, scarcely passing the anterior border of the eyes ; funicle 7- jointed, joints 1-2 sub equal, the first stouter, 3-7 obconical gradually shorter, club elongate oval. Eyes oval, oblique. Thorax oval, broader than long, truncate at apex and base, ocular lobe broad and moderately prominent. Scutellum indistinct. Elytra oval, not wider at base than the thorax. Metasternal side pieces indistinct. Intercoxal process of abdomen broad, slightly arcuate in front. Second segment of abdomen shorter than the two following united, separated from the first by an absolutely straight suture. Anterior and middle tibite feebly mucronate, the former feebly denticulate within. Articular cavities (corbels) of hind tibia; open. Tarsi normal, densely pubescent beneath. Claws moderate, free. Body scaly and with short erect setae. 40 OTIORHYXCHID^. [Horn. This genus should probably be referred to the group Leptopsides of Lacor- daire by its rather quadrangular rostrum although the lateral grooves and carina are here entirely wanting. Whether the genus be placed in the above group or with the Strangaliodides, the form of the scrobes, the short scape and the rather short second segment with straight first suture charac- terize it as distinct from any genus there described. D. setiger, n. sp. Oblong oval, densely covered with moderately large, imbricated, cine- reous scales, discolored brownish by an exudation, and with short ere(;t setoe. Head and rostrum slightly longer than the thorax, densely covered with cinereous discolored scales, with erect slightly clavate setie sparsely placed. Thorax oval, broader than long, slightly narrower in front, apex and base truncate, sides moderately arcuate, disc convex, rugulose, sub- granulose at the sides, surface covered as the rostrum. Elytra oval, slightly attenuate at apex, base feebly emarginate, humeri obtuse, disc moderately convex, striate, striae rather finely punctured, intervals slightly convex, densely scaly and Avith a single row of short erect setae on each. Body be- neath less densely clothed than above, scales slightly pearl)^ setae very siiort and recumbent. Legs modei'ately densely scaly and sparsely setose. Length .24 inch ; 6 mm. Occurs in Texas. Belfrage 747. MELAMOMPHUS n. g. Rostrum longer and narrower than the head, cylindrical at base, slightly broader at tip with the alae moderately prominent, tip feebly emarginate and with a narrow smooth space. Mandibles moderately prominent, supports of deciduous pieces also slightly prominent. Mentum transversely oval, sub-mentum with short peduncle. Front convex, separated from rostrum by a slight sinuation. Scrobes short, slightly arcuate, moderately deep in front, rapidly evanescent posteriorly, directed slightly beneath the eye. AntenniC sub-terminal, moderate ; scape graduallj^ thicker to tip, passing slightly the middle of the eye, setose ; funicle 7-jointed, joints 1-2 longer, the first longer than the second, 3-7 transverse, short, sub-perfoliate, and verticillate with moderately long sette : club oval, pointed. Eyes trans- versely oval, pointed beneath. Thorax oval, broader than long, lobes moderate and with short fimbriae. Scutellum small, triangular. Elytra oval, not wider at base than the thorax, feebly emarginate at base. Meta- sternum short, side pieces moderately wide, separated bj'an arcuate suture. Intercoxal process moderate. Second abdominal segment not longer than the two following united, first suture straight. Tibiae mucronate, the an- terior feebly denticulate within, articular surfaces of hind tibiae cavernous. Tarsi normal. Body densely scaly and hairy. M. niger, n. sp. Form oblong oval, densely covered with brownish black scales and with moderately long black hairs. Head and rostrum longer than the thorax, Horn.] OPHKYASTINI. 41 densely scaly and sparsely hairy. Tliorax transversely oval, truncate at base and apex, sides regularly arcuate, disc convex, densely tuberculate, each tubercle punctured at summit, surfoce sparsely hairy. Elytra oblong oval and with rows of moderately large punctures deeply impressed, not closely placed, intervals flat, densely scaly, each with two rows of mode- rately long erect black hairs. Body beneath black, not scaly, coarsely and deeply punctured. Legs piceo-rufous or black, sparsely scaly and hairy. Length .32 inch ; 8 mm. Excepting its black color this species resembles very closely Peritaxia Impida, of the present tribe, in its general form and appearance, the generic characters are however very different. Occurs in Nevada. DYSLOBUS Lee. Dyslobm (pars) Lee. Ann. Mag. Nat. Hist., 1869, p. 380. Rostrum longer than the head and slightly narrower, slightly wider at base and apex than at middle, ate very feebly divergent, base cylindrical, apex sub-quadrangular and feebly emarginate. Front convex separated from the rostrum by a feeble transverse impression. Scrobes deep in front, rapidly evanescent posterioi'ly, slightly arcuate and directed toward the middle of the eye. Eyes transverse oval, obtuse beneath. Antennae moderate, scape feebly thicker to tip, attaining the hinder margin of the eye ; funicle 7-jointed, first joint slightly longer, 2-7 obconical and gradu- ally shorter ; club elongate oval, pointed. Thorax oval, not wider than long, lobes broad but very short, fimbriate. Scutellum confined entirely to the peduncle. Elytra oblong oval, not wider than the thorax. Metasternum short, side pieces moderate, suture distinct. Intercoxal process quadran gular, arcuate at apex. Second segment shorter than the other two united, iirst suture very nearly straight. Anterior tibite mucronate, arcuate in both sexes, denticulate Avithin, middle tibia; straight, mucronate, hind tibiae straight 9 or suddenly arcuate near the tip and furnished with a brush of moderately long silken hairs (^, not mucronate at tip* Articular cavities of hind tibiae open. Tarsi normal. Body densely scaly and with very short hairs. Having found it necessary to separate the species of Dyslobus to form two genera, I have chosen as the type the first species mentioned (i>. segnis) especially as it is the only one in which the second abdominal segment is rather short, and the first suture straight. This genus must be placed near Panscopus, which it resembles somewhat in form but is rather more elon- gate. D. segnis Lee. {Otiorhynchus) Pacif. R.R. Rep. App. 1, p. 56, 1857 Form oblong, surfixce densely covered with pale brownish scales and very short hairs. Head and rostrum as long as the thorax, densely covered with brownish and cinereous scales. Thorax broadly oval, as wide as long and nearly as wide as the elytra at their widest part, apex and base truncate, sides regularly arcuate, disc feebly convex, densely covered with brownish PROC. AMEK. PKILOS. SOC. XV. 96. F 42 OTIOKHYXCHTD^^. rHorn. scales with paler spaces near the sides. Elytra oblong oval, twice as long as wide, sides feebly arcuate, apex feebly attenuate, posteriorly suddenly declivous and sub-compressed, disc feebly convex, striate, striae with coarse rather distantly placed punctures, intervals flat densely scaly and with two irregular rows of very short setiE on each. Body beneath not densely covered with pearly w^hite scales and with very short hairs. Legs mode- rately densely scaly, scales brown with whitish patches irregularly inter- spersed. Length .36-44 inch ; 9-11 mm. The sexual distinction is found in the rather sudden bending of the hind tibia? of the male with a brush of moderately long silken hairs near the tip. Occurs in California and Oregon. PANSCOPUS Sch. Panscopus Sclionh. Cure, vi, 2, p. 266. Rostrum a little longer and narrower than the head, separated from the latter by a moderately strong arcuate depression, robust, rounded at base, tip rather strongly emarginate, above convex obtusely carinate. Front flat. Scrobes deep, well defined, rather strongly arcuate, directed toward but not attaining the lower angle of the eye. Antennaj moderate, scape ciavate attaining the middle of the eyes ; funicle 7-jointed, 1-2 longer, the first longer than the second, joints 3-7 obconical, gradually broader, club oval acute. Eyes transversely oval, obtusely pointed beneath. Thorax broader than long, sides regularly arcuate, lobes short but broad. Scutel- lum nearly invisible. Elytra oblong oval, not wider than the thorax, trun- cate at base. Metasternum short, side pieces indistinct, suture obliterated. Intercoxal process moderate, truncate in front. Second abdominal segment equal to the two following, separated from the first by a straight suture. Anterior tibia; feebly denticulate within. Articular surfiices of hind tibiaE! open. Tarsi normal. Body oblong, surface densely scaly, and with short setae. P. erinaceus Say {Barynotus), Cure. N. A. p. 12 ; Am. Ent. 1, p. 272; Sch. loc. cit. Form oblong moderately robust, surtlice densely covered with brownish scales, with paler spots irregularly placed on the elytra and a lateral stripe on the thorax. Head and rostrum slightly longer than the thorax, densely scaly, scales distinctly cupreous. Thorax slightly broader than long, apex and base truncate, sides regularly and rather strongly arcuate, disc mode- rately convex, median line distinctly impressed, surface rugulose, densely scaly, scales indistinctly cupreous, at the sides a paler line. Elytra oblong oval, striate, striae with moderately large distant punctures, intervals feebly convex with a single row of short setae and densely covered with brownish scales, sometimes wnth a slight cupreous lustre and with small paler spots irregularly placed especially numerous near the apex. Body beneath and legs similarly covered with scales. Length .24-. 32 inch ; 6-8 mm. Occurs from Canada to Pennsylvania. The large majority of the specimens are uniformly covered with a brown- Horn. J OPHRYASTINI. 43 ish coating the result of an exudation and adliering argillaceous material. The above descrij)tion has been made from a clean specimen. ANAMETIS u. g. Rostrum longer and narrower than the head, moderately robust, slightly broader in front, tip feebly emarginate with a small smooth space, limited behind by an elevated line. Scrobes moderately deep, well defined, arcuate and directed beneath the lower angle of the eye. Antennse mode- rate, anterior, scape gradually clavate, attaining the middle of the eye ; funicle 7-jointed, 1-3 elongate, equal, 3-7 obcouical, the seventh free ; club elongate, oval. Eyes transversely oval, obtuse beneath. Thorax trans- versely cylindrical, narrower in front, base and apex truncate, lobes short, with slight fimbrias. Scutellum small triangular. Elytra oval, emarginate at base and very slightly wider than the thorax. Metasternum short, side pieces indistinct, suture obliterated. Intercoxal process moderate, arcuate in front, second segment of abdomen as long as the the two following united, separated from the first by a straight suture. Anterior and middle tibiae mucronate at tip, the former denticulate within, hind tibiae extremely feebly or not mucronate, the articular surfaces sub-cavernous. Tarsi nor- mal. Surface densely scaly and with short setie. As in all the genera in this vicinity the front is convex and the rostrum at base transversely impressed. A. grisea, n. sp. Form oval, surface densely and- uniformly covered with cinereous scales and short setae. Head and rostrum as long as the thorax, densely scaly, scales slightly pearly. Rostrum feebly convex along the middle, rarely with a finely impressed longitudinal line on each side. Thorax wider than long, slightly narrower in front, disc moderately convex, surface densely scaly and sparsely setose. Elytra regularly oval, striate, striae moderately punctured, intervals. slightly convex, densely scaly and irregularly biseri- ately setulose. Body beneath and legs with similar vestiture, but less dense. Length .20-. 28 inch ; .5-7 mm. This species resembles somewhat Epiccerus formidolosus in form but is more elongate. Occurs in Kansas, Dacota, Illinois and Georgia, and is common. ORIMODEMA n. g. Rostrum shorter but narrower than the head, cylindrical at base, sub-quad rangular at apex, with a transverse impression at some distance in front of the eyes, tip feebly emarginate, with narrow smooth space without eleva- ted line. Supports of mandibular pieces not prominent. Scrobes deep, well defined, arcuate, passing rapidly inferiorly at a distance from the eyes. Antennae moderate anterior, scape gradually clavate, scaly, attain- ing the middle of the eye ; funicle 7-jointed, 1-2 large, equal, 3-7 obcouical gradually shorter, seventh not broader and free ; club oval, acute. Eyes transversely oval, pointed beneath. Thorax cylindrical, truncate at apex 44 OTIOEHYNCHID^. [Horn. and base, sides very feebly arcuate, lobes prominent and fimbriate. Scutel- Inm short transverse. Elytra elongate oval, gradually attenuate posteriorly. MetSsternum short, side pieces indistinct, suture obliterated. Intercoxal process moderate arcuate in front, second abdominal segment longer than the two following united, separated from the first by a suture strongly arcuate at middle. Anterior and middle tibia; mucronate at tip, the former denticulate within. Articular surface of hind tibiae open, the tibiae not mucronate at tip. Tarsi normal, surface densely scaly and not pilose. This genus appears from description to be allied to Dasydema and Oriinus. The femora are sub-pedunculate, the anterior stouter. The scutellum is distinct, the rostrum short and stout, and the surface scaly without setae. In these particulars it differs from one or other of these two genera, and agrees with them in having the corbels open. O. protracta, n. sp. Form elongate oval, surface densely covered with brownish scales with slight cupreous lustre, elytra irregularly variegated with paler patches. Head and rostrum as long as the thorax, densely scaly, scales brownish and paler intermixed. Head large. Thorax cylindrical, base and apex tinin- cate, equal, not wider than long, sides feebly arcuate, disc regularly convex, surface densely covered with pale-brownish scales. Elytra elongate oval, regularly attenuate behind, base not wider than the thorax, humeri obliquely rounded, sides feebly arcuate, disc feebly convex, feebly striate, strife with moderate, not closely placed punctures, intervals flat, densely covered with pale-brownish scales with distinct cupreous lustre, and with paler spaces irregularly placed. Under surface moderately densely scaly, scales paler than above. Tibite sparsely fimbriate. Length .36 inch ; 9 mm. Occurs in Colorado and New Mexico. MIMETES Sch. Mimetes Schonh. Mant. sec. Cure. p. 28. Rostrum slightly longer and narrower than the head, sub-quadrangular, slightly dilated and feebly emarginate at tip, separated from the front by a distinct, arcuate impression. Sub-mentum with a distinct peduncle, not inflexed. Scrobes deep, well defined, rather suddenly arcuate and passing near the lower border of the ej^e. Eyes round, coarsely granulated, feebly prominent. Antennae moderately long ; scape gradually clavate, attaining nearly the middle of the e,ye ; funicle 7-jointed, 1-3 longer, the first longer than the second, 5-7 obconical, gradually shorter ; club oval, pointed. Thorax cylindrical, sides feeblj^ arcuate, apex slightly narrower and with the base truncate. Scutellum small triangular. Elytra oblong oval, slightly acuminate posteriorly, base not wider than the thorax and broadly emar- ginate, humeri rounded. Metasternum moderate, side pieces narrow, suture distinct in its entire length. Intercoxal process broad, rounded in front ; second segment of abdomen much longer than the two following united, separated from the first by very strongly arcuate suture. Tibiae (except Horn.] OPHRYASTIXI. 45 posterior) distinctly but feebly mucronate. Articular surfiices of liind tibioe distinctly cavernous. Claws moderate, free. It is not without doubt that I consider the genus before me identical with Mimetes. The thorax is provided, in well preserved specimens with the post-ocular thoracic fimbriae characteristic of the Tanymecides of Lacor- daire. These hairs are however very easily removable, and it is possible that Lacordaire may have had a specimen before him similar to one now at hand. The present species has been submitted to Mr. H. Jekel, who agrees with me in placing it near Amomphus and its allies. The mandibles have no prominent support for the deciduous piece. In addition to the characters given in the table, this genus has a much less robust rostrum and the fron- tal impression is between the eyes and not at a distance in front as in Orimodema. M. setulo3US Lac. Gen. Cure, vi, p. 40. Form oblong oval, surface densely covered with cinereous scales, varie- gated in some specimens with white and pale cupreous. Head and rostrum longer than the thorax, densely punctured and scaly. Antennse rufous, sparsely pubescent. Thorax, cylindrico-oval, slightly narrower and feebly constricted in front, sides moderately arcuate, base truncate, disc feebly convex, densely punctured and densely covered with cinereous scales. Ely- tra oblong oval, nearly twice as long as wide, sides moderately arcuate and feebly attenuate behind, base broadly emarginate ; disc feebly convex, finely striate, strife not closely punctured, intervals at sides feebly convex and at apex slightly alternating, surface densely scaly, on each interval a row of short, distant, semi-erect set*. Body beneath densely scaly and very sparsely hairy. Legs moderately densely scaly, tibite more distinctly pilose especially on the inner side. Length .22 inch ; 5.5 mm. Occurs at San Diego and San Buenaventura, California. M. seniculus, n. sp. Form elongate oval, surface densely covered with intermixed and pale- brown scales very densely placed. Head and rostrum as long as the thorax, densely scaly and with fine short whitish hairs. Rostrum with feeble median impression in front and an angulate impression at base between the eyes. Thorax oval, longer than wide, sides moderately arcuate, a slight constriction at the sides behind the anterior margin, apex and base trun- cate, disc feebly convex densely scaly, scales pale -brownish, a whitish median line. Elytra oblong oval nearly- twice as long as the thorax, and one-half wider at middle, moderately convex, densely scaly, scales pale- brown and cinereous irregularly clouded, surface faintly striate, striae feebly punctured, intervals flat, with a single row of short whitish hairs. Body beneath similarly scaly, scales decidedly pearly and with more evident hairs, especially at the middle of the posterior portion of the first ventral segment (^. Legs pale-brownish, similarly but more sparsely scaly Length .14 inch ; 3.5 mm. One specimen California (Motschulsky) ditfers from the pr^eding species by its smaller size, more slender form and flat elytral interstices. 46 OTIOEHYIS^CHID^. [Horn. Tnis species was sent by Motschulsky as Sitones seniculus, Maun., to Dr. LeConte ; another type fi'om the same source sent to Allarcl proved to be- long to another entirely diiferent species, of which mention will be made by Dr. LeConte in the proper place. The original description by Mannerheim is here appended, so that a com- parison of descriptions may be readily made. "Oblongus, subcylindricus, niger ci)iereo-tome7itosus et setosus, fronte canaliculata, rostro excavato, thoraci profunde rugose punctata, lateribus vix rotundato, elytris profunde punctato-striatis, antennarum basi, tibiisque ferrugineis. Long. 1| lin ; latit. ^ lin. DIAMIMUS n. g. Rostrum longer and narrower than the head, slightly broader in front, cylindrical at base, separated from the head by a transverse impression, tip feebly emarginate and with very small smooth space. Scrobes deep, well defined arcuate, directed beneath at a distance from the eyes. Antennse moderate, scape feebly clavate, attaining the middle of the eye ; funicle 7- jointed, 1-3 larger, 3-7 obconical, gradually decreasing in length, the last distant from the club which is elongate oval, acute. Eyes broadly oval. Thorax cylindrical, sides feebly arcuate, lobes very short, fimbriate. Scutellum distinct. Elytral oblong oval, humeri obliterated. Metasternum short, side pieces indistinct suture obliterated. Intercoxal process mode- rate, truncate in front. Second segment longer than the two following, separated from the first by an arcuate suture. Anterior and middle tibiae mucronate at tip, not denticulate within, hind tibiae not mucronate, their corbels cavernous. Tarsi normal. Body oblong densely scaly, sparsely pilose. D. subsericeus, n. sp. Form oblong, surface moderately densely covered with cinereous scales slightly cupreous and with micaceous lustre and Avith erect hairs sparsely placed. Head and rostrum not longer than the thorax, moderately densely scaly, sparsely pilose. Thorax cylindrical, slightly wider than long, apex and base truncate, sides regularly and moderately arcuate, disc moderately convex, sparsely punctured, moderately densely scaly and sparsely pilose. Elj''tra oblong oval, sides feebly arcuate, humeri obsolete, surface mode- rately convex and with rows of moderate, not closely placed punctures, intervals flat, moderately densely scaly, each with a row of moderately long erect hairs. Body beheath less densely scaly and with very few hairs. Legs sparsely scaly, hairs longer. Surface color less the vestiture piceous. Length .18-. 22 inch ; 4.5-5.5 mm. Occurs in New Mexico and Colorado. PERITAXIA n. g. This genus differs from the preceding by the following characters : Sci'obes more evanescent posteriorly, less arcuate and directed more in- feriorly. Corbels of hind tibiae open. Humeri rectangular. Horn.] OPHEYASTINI. 47 In their form of vestiture the two genera agree. In both the supports of the mandibular pieces are moderately prominent and obliquely truncate at tip. Amompliiis (Cotiyi) is also closely allied and differs especiallj^n the wide metasternal side pieces with the suture distinct. Two species occur in our fauna. Ocular lobes distinct but feeble, surface covered with very dark piceous scales and short cine- reous hair rugicollis. Ocular lobes wanting but replaced by a decided fringe of stiff hairs, surface with cinereous scales and longer greyish hair hispida. P. rugicollis, n. sp. Form oblong, color piceous, surface sparsely covered with inconspicuous scales, not differing in color from that of the surface, and with short brownish hairs. Head and rostrum slightly longer than the thorax, sparsely scaly and with few hairs. Thorax transversely oval, apex and base truncate, sides moderately arcuate, disc moderately convex, granulato ■ rugulose, median line obsoletely impressed, surface sparsely scaly and pilose. Elytra oblong oval, base feebly emarginate, humeri sub-rectangular, disc moderately convex, feebly striate and with coarse i:»unctures mode- rately closely placed, intervals flat, sparcely scaly, bi-seriately pilose. Body beneath and legs indistinctly scaly and with short greyish hairs. Length .30 inch ; 7.5 mm. Occurs in Colorado and New Mexico. This species bears considerable resemblance superficially to Melamoni- phus niger of the present tribe. P. hispida, n. sp. Oblong oval, piceous, surface scaly and hispid. Head and rostrum as long as the thorax, moderately densely punctured, not densely scaly and with numerous, moderately long, erect, yellowish hairs. Thorax oval, slightly narrower in front, as broad as long, sides moderately, base feebly arcuate, disc moderately convex, surface densely and rather coarsely punc- tured and rugulose, moderately densely scaly and hairy. Elytra oblong oval, nearly three times as long as the thorax, moderately convex, surface deeply striate, striae with large but not closely placed punctures, intervals flat, finely punctured, sparsely scaly and hairy. Body beneath piceous, spai'sely scaly and with shorter hairs than the upper sui'face. Legs piceous, sparsely scaly and hairy, the tibiae with longer hairs. Length .36 inch ; 9 mm. The scales covering the surface rather sparsely are of a dirty-white color with a slight tinge of cupreous. In form this insect resembles Amomphus Cotiyi but with the sides of thorax and elytra more arcuate. Occurs abundantly in Colorado. 48 OTIOEHY]srCHID.^. THRICOMIGUS n. [Horn. Rostrum slightly longer and narrower than the head, feebly arcuate, very slightly dilated at tip, base cylindrioal and with transverse impression, tip very feebly emarginate. Scrobes moderately deep in front, rapidly evanes- cent posteriorly, very feebly arcuate and directed toward the lower portion of the eye. Antennae moderate, scape gradually clavate, slightly passing the middle of the eye ; funicle 7-jointed, joints 1-3 longer, the first longer than second, 3-7 moniliform ; club oval, pointed. Eyes broadly oval. Thorax oval, slightly broader than long, apex and base truncate, sides moderately arcuate, lobes very short, fimbriate. Scutellum short, broad. Elj'tra regularly oval. Metasternum short, side pieces moderate, suture distinct. Intercoxal process moderate, truncate in front, second segment longer than the two following united, suture distinctly arcuate. Anterior tibiaj denticulate within, this and the middle tibiaj mucronate at tip. Artic- ular surfaces of hind tibiae sub-cavernous, tip not mucronate. Tarsi normal. Body above densely scaly and pilose. The unique species composing this genus resembles a large Phy.reh'ft glomerosus but is relatively more elongate. The ahe of the rostrum are slightly prominent, and the scrobes are rather better visible from above than beneath, but are not superior as in Phyxelis, and do not difler notably from those of the genera placed by Lacordaire in the present tribe. T. luteus, n. sp. Form oval, surface densely covered with pale ochreous scales, in some specimens slightly cupreous, and with short erect hairs. Head and rostrum as long as the thorax, moderately densely scaly, scales at the sides paler, and with erect, short, brownish hairs sparsely placed. Thorax slightly broader than long, slightly narrower at apex, sides moderately and regu- larly arcuate, apex and base truncate, disc moderately convex, densely scaly, sparsely hairy. Elytra oval, humeri broadly rounded, disc mode- rately convex, striate, strias with moderate, not densely placed punctures, intervals flat densely scaly, scales paler at the sides, each interval with two rather irregular rows of erect, brownish, short seta3. Body beneath less ileusely scaly than above. Legs sparsely scaly and with longer hairs than the body. Length .28-30 inch ; 7-7.5 mm. Occurs in Bitter Root Valley and in Colorado. AMISTESIA n. g. Rostrum slightly longer and narrower than the head, cylindrical at base and with transverse impression, apex slightly broader, alse verj^ feeblj- prominent, tip feebly emarginate. Scrobes moderately deep and Avell de- fined anteriorl}', feebly arcuate, rapidly evanescent and feebly limited posteriorly, directed toward the lower portion of the eye. Antenna- moderate, sub-apical, scape gradually clavate, attaining the middle or posterior border of the eye, funicle 7-jointed, first two longer and sub-equal, 3-7 shorter, usually obconical, sometimes longitudinally ovate, club oval, Horn.! OPHRYASTINI. 40 pointed. Thorax oval, usually broader than long, sides moderately arcuate, apex and base truncate, lobes very short and slightly fimbriate. Scutellum small, scarcely entering between the elytra. Elytra oval or oblong oval, base not broader than the thorax, feebly emarginate, humeri feebly rec- tangular or entirely obliterated. Metasternum short, side pieces moderately wide, suture distinct in its entire length. Intercoxal process moderate truncate in front. Tibite mucronate at tip, articular surfoces of hind tibiae feebly cavernous. Tarsi normal. Body above densely scaly and with extremely short black setae in some species, and moderately long hairs in others. This genus is a part of that included by Dr. Leconte in DyslobuH, the generic description of which appears to have been made from D. segnis and A. granicollis of the present genus. I have retained the name Bi/slobus for the species with the first abdominal suture straight as this character is the most important and striking in the description. Regarding the position the genus should occupy in the groups indicated by Lacordaire, I am in some doubt. The scrobes are lateral, feebly arcuate and directed toward the lower front of the eye. They do not become rapidly inferior as in sevei'al genera already noted, and are but slightly less arcuate and less de fined than in Panscojnis. For the present, I prefer to retain Amnesia in the present group as one of the leads toward the PhytoscapM to which the next genus probably belongs, Nodieles in turn being a lead toward the Eremnini. I consider (Byslobus) granicollis Lee. the type of the genus. The following table will make our species easily known : Hairs of the surface, especially on the elytra, very short and incon- spicuous. Humeri rectangular, anterior tibiae moderately denticulate. Body beneath rather sparsely and not coarsely punctured granicollis. Body beneath with coarse deep punctures, denser on the intercoxal process and last ven- tral segment decorata. Hairs of surface very distinct, usiially rather long. Humeri rectangular, anterior tibiae moderately denticulate. Surface of thorax even, not granulate ursina. Surface of thorax granulate, each granule punc- tured rauca. Humeri obliterated, anterior tibiae feebly dentic- ulate, surface of thorax with punctured granules. Elytra oval, wider at middle than the thorax, and not twice as long as wide. Thorax not narrowed in front, granules incon- spicuous, surface densely scaly ; elytra with cinereous scales alternata. PROC. AMER. PHILOS. SOC. XV. 96. G 50 OTIORHY^SrCIIID^. [Horn. Thorax not narrowed in front, granules of moderate size and not very approximate, surfiice sparsely scaly; elytra with brownish scales sordida. Thorax distinctly narrowed in front, granules small and very indistinct, surface sparsely scaly; elytra with brownish scales deeidua. Elytra oblong, not or scarcely wider at middle than the thorax, and twice as long as wide .... elongata. A. granioollis Lee. (Dyslobua) Ann. Mag. Nat. Hist. 1889, p. 380. Form oval, above moderately densely covered with pale-brownish scales, variegated with paler and darker spots, and with extremely short and in- conspicuous black setae. Head and rostrum as long as the thorax, moder- ately densely punctured, scales cupreous, rostrum with a feeble carina terminating in a slight frontal puncture. Thorax slightly broader than long, apex and base truncate and nearly equal, sides moderately ai'cuate, lobes very feeble, disc moderately convex, indistinctly granulate, granules ]ninctured at summit, surface moderately densely scaly and with A^ery short setjp, scales pale-brownish with slight cupreous lustre, paler at the sides. Elytra oval, conjointly emarginate at base, humeri rectangular, disc mode- rately convex, apex rather suddenly declivous, indistinctly striate, strias with moderately large, not closely placed punctures, intervals alternately more convex especially toward the declivity, surface densely scaly, scales pale-brownish, variegated with darker and paler spots, especially on the more convex intervals, each interA^al with numerous short, black seta>, very inconspicuous. Body beneath very sparsely scaly at the sides, and with scale-like hairs at middle, surface rather sparsely punctured. Legs sparsely scaly and with short hairs. Length .38-. 40 inch ; 9.5-10 mm. Occurs in Vancouver and Oregon. This species has somewhat the facies of Tyloderes clirysops. A. decorataLec. (Dyslobus) Ann. Mag. Nat. Hist. 1869, p. 381. Form oblong oval, surface densely covered with cinereous scales, varie gated with brownish and cupreous spaces. Head and rostrum nearly as long as the thorax, surface rather coarsely punctured, moderately densely scaly, scales cupreous ; rostrum above feebly subcarinate. Thorax oval, slightly broader than long, apex and base truncate, the apex slightly narrower, sides rather strongly arcuate especially at posterior third, lobes very feeble ; disc very feebly convex, sub-rugosely punctate and feebly granulate, sparsely scaly, scales silvery and cupreous and with extremely short inconspicuous setge. Elytra oblong oval, conjointly emarginate at base, humeri rectangular, sides moderately arcuate, disc moderately con- vex, apex rather suddenly declivous, surface striate, striae with moderate, rather closely placed punctures, intervals slightly convex, and alternately slightly more convex near the declivity, densely scaly, scales cinereous or pale-brownish, variegated with cupreous and darker scales. Body beneath Horn.] OPHRYASTINI. 51 piceous, with sparsely placed scale-like hairs, intercoxal process and last ventral segment densely cribrate punctate. Legs sparsely scaly and pubescent. Length .26 inch ; 6.5 mm. Although very different in appearance from the preceding species, there is some difficulty in finding characters expressible in words to separate the two. The thorax of the present species is relatively much broader and at its widest part but little narrower than the elytra. The alternation of eleva- tion of the intervals is very little marked on the disc and is but slightly more evident near the declivity. A variety ? occurs in Oregon with intervals nearly flat and similar. Occurs in Oregon and Vancouver. A. virsina, n. sp. Form oblong oval, surface densely covered with brownish scales and with rather long, pale-brown erect hairs. Head and rostrum as long as the thorax, rostrum not subcarinate above, surface punctured, densely covered with brownish scales becoming cinereous at the sides and beneath and with moderately long erect hairs. Thorax not wider than long, apex and base equal and truncate, sides evenly arcuate, lobes very short ; disc mode- rately convex, not granulate, finely punctured, densely covered with brownish scales with slightly pearly lustre, and paler at the sides and with long erect hairs. Elytra oval, verj' slightly wider at middle than the thorax, base feebly conjointly emarginate, humeri rectangular, sides mode- rately arcuate, apex gradually declivous, disc moderately convex, striate, stria? with rather coarse punctures closely placed, intervals slightly convex, densely covered with brownish scales and with two rows of closely placed and rather long, pale brownish hairs. Body beneath and legs sparsely scaly, scales slightly silvery, and with moderately long hairs. Abdomen sparsely punctured. Length ,28 inch ; 7 mm. One specimen (J^, Oregon. A. rauca, n. sp. Oblong, surface densely covered with brownish scales, and Avith mode- rately long, pale-brownish liairs. Head and rostrum as long as the thorax, densely cribrate punctate, rostrum subcarinate, surface sparsely scaly and hairy. Thorax nearly globose, slightly wider than long, apex truncate, base slightly arcuate, sides strongly arcuate, lobes very feeble, disc convex, moderately densely granulate, granules punctured at summit, surface sparsely scaly and hairy. Elytra oblong, scarcely wider at middle than the thorax, base feebly emarginate, humeri rectangular, disc moderately con- vex, obsoletely broadly striate, strife with large, deeply impressed, rather closely placed punctures, intervals fiat, densely covered with brownish scales and moderate hairs placed in two rows on each interval. Body beneath densely and coarsely punctured and with very few short hairs Legs sparsely scaly and hairy, hairs longer than on the bodJ^ Length ,22 inch ; 5.5 mm. Differs from the preceding in sculpture and by the much shorter hairs of the upper surface. Two specimens, San Francisco, Cal. 52 OTIORTIY^fCHIDJE. I Horn. A. alternata, n. sp. Oblong oval, surface densely covered with brownish cinereous hairs, the alternate intervals of the elytra paler. Head and rostrum as long as the thorax, sparsely punctured and with erect yellowish hairs, surface densely covered with cinereous scales, brownish at the sides ; rostrum with a short median impression between the insertions of the antennte. Thorax cylin- drical, very slightly broader than long, sides moderately arcuate, surface densely covered with cinereous scales, slightly clouded at middle, with few erect hairs ; when deprived of scales the surface consists of flattened punc- tured granules, moderately densely placed. Elytra oblong oval, one-third longer than wide, humeri obtusely rounded, surface striate, striae with punctures of moderate size, not closely placed, intervals flat, densely covered with cinereous scales, each alternate interval darker at basal half and irregularly clouded near the apex, each interval with two very irregu- lar rows of erect hairs. Body beneath not very densely covered with cinereous scales and with few hairs. Legs with densely placed scales and sparsely placed hairs longer than those of the surface. Length .26 inch ; (5.5 mm. This species from its densely scaly surface has a greater superficial re- semblance with decorata than the species near which it is placed, but from its having rather conspicuous erect hairs on the entire upper surface it must be placed here. Two specimens, Montana. A. sordida, n. sp. Form oblong oval, resembling granicolUs, surface denselj' covered with brownish scales, indistinctly variegated with brownish spots and with ratlier short hairs. Head and rostrum as long as the thorax, moderately densely and coarsely punctured, rostrum distinctly sub-cainnate above, surface very sparsely scaly and hairy. Thorax nearly spherical with apex and base truncate, lobes extremely short, disc moderately convex, finely and not closely granulate, each granule punctured at summit, surface sparsely scaly and hairy. Elytra regularly oval, one-half broader at middle than the thorax, base feebly emarginate, humeri entirely obliterated, disc moderately convex, finely striate, stria? with elongate punctures, intervals flat, densely scaly and with two rows of pale-brownish hairs of moderate length. Body beneath moderately densely punctured, sparsely hairy. Legs with very fcM'' scales, sparsely hairy. Length .34 inch ; 8.5 mm. The form of this species is very nearly that of granieolUs, but M'ith flat elytral intervals and without rectangular humeri. One specimen, California (or Oregon). A. decidua.. n. sp. Form oblong, surface moderately covered with pale-brownish, easily re- moveable scales and with brownish erect hairs. Head and rostrum slightly longer than the thorax, densely and coarsely punctured, sparsely scaly and hairy, scales at sides and tip cupreous, rostrum above, carinate. Thorax Horn.] OPHRYASTIXI. 53 oval, wider than long, slightly narrower at apex than base, sides mode- rately arcuate, lobes feeble, apex at base truncate, disc moderately convex, granulato-rugulose, very sparsely scaly and hairy. Elytra elongate oval, sides very feebly arcuate, base feebly emarginate, humeri entirely oblitera- ted, disc moderately convex, obsoletely striate, and with moderately coarse closely placed punctures, intervals slightly convex, moderately densely covered with easily removable scales, and two rows of irregularly placed erect brownish hairs. Body beneath moderately densely punctured, with few elongate cupreous scales and sparsely hairy. Legs sparsely scaly and hairy, hairs longer on the tibiaj and denser near the tip. Length .34 inch ; 8.5 mm. Two specimens, Sauzalito, California. A. elongata, n. sp. Form rather slender, elongate, surface densely covered with brownish scales and hirsute. Head and rostrum slightly longer than the thorax, densely and coarsely punctured, sparsely scaly and hairj', rostrum above very feebly sub-carinate near the base. Thorax slightly broader than long, apex and base truncate, sides rather strongly arcuate, disc moderately con- vex, densely granulato-rugulose, sparsely scaly and hairy. Elytra scarcely longer at middle than the thorax, form oblong, base feebly emarginate, humeri entirely obliterated, disc moderately convex, feebly striate, stripe with elongate punctures, intervals nearly flat, moderately densely scaly, and with two rows of erect brownish hairs. Body beneath coarsely and densely cribrate punctate, surface sparsely hairy. Legs sparsely scaly and hairy. Length .26-. 32 inch ; 6.5-8 mm. This species is easily known by its elongate form. Two specimens, California. PHYMATINUS Lee. Phymatinus Lee. Ann. Mag. Nat. Hist., 1869, p. 382. Rostrum oblique, longer and somewhat narrower than the head not sepa- rated from the head by a transverse impression, cylindrical at base, dilated at apex, al* moderately prominent, tip not emarginate. Scrobes deep in front, nearly straight, very rapidly evanescent posteriorly and badly de- fined, directed toward the lower margin of the eye. Antennae long, scape rather slender, feebly thicker to tip, passing slightly the middle of the eye. funicle 7-jointed, somewhat longer than the scape, joints 1-2 longer and equal, 3-7 obconical, gradually shorter, club oval, pointed. Eyes broadly oval, feebly prominent. Thorax cylindrical, apex and base truncate, sides more arcuate in front of middle, lobes feeble. Scutellum very indistinct. Elytra oval, very suddenly declivous and slightly inflexed posteriorly, base con- jointly emarginate, humeri obtuse. Metasternum short, side pieces indis- tinct, suture entirely obliterated. Intercoxal process broad, truncate, sec- ond segment longer than the two following united, first suture strongly ar- cuate at middle. Tibiae mucronate at tip, the anterior feebly denticulate 54 OTIORHYNCHID.^.. [Horn. within, articular surface of hind tibitxj cavernous, tarsi normal, (third joint broadly bilobed) densely pubescent beneath. Surface densely scaly and with small granules. This genus, as suggested by Dr. LeConte, should probably be referred to Lacordaire's group PhytoscapJiides, but if so, I feel entirely unwilling to separate that group from the present, the scrobes of the genera here in- cluded showing a very gradual transition in form. P. gemmatus Lee. {Tyloderes) Pacif. R.R. Rep. App. i, p. 56. Elongate oval, black, surfiice densely covered with cinereous scales, with cupreous and pearly lustre at the sides, disc of thorax and elytra slightly brownish. Head and rostrum longer than the thorax, punctured and mode- rately densely scaly, sparsely setulose, rostrum with finely elevated median line terminating in a slight impression. Scape with scale-like hairs. Thorax cylindrical, as broad as long, apex and base truncate, sides arcuate, more strongly in front of middle, disc moderately convex and with median sulcus, surface with moderately large granules, each punctured and with a short stout seta, median line and narrow space each side not granulate, inter- granular spaces densely scaly, scales darker on the disc, pearly and cupre- ous at the sides. Elytra regularly oval, very suddenly declivous posteriorly, sutural region more prominent at declivity, disc feebly convex, striae obso- lete, and with rows of indistinct punctures, each alternate interval with two indistinct rows of moderate granules, each punctured and bearing a short, stout, curved, black seta, interspaces densely scaly, scales darker on the disc, pearly and cupreous at the sides. Body beneath and legs mode- rately densely scaly, sparsely setulose, scales pearly and cupreous. Length .32-. 40 inch ; 8-10 mm. This species has a marked resemblance to Tyloderes chrysops in size, sculpture and general aspect. Occurs in California and Oregon. NOCHELES n. g. NorJieles Lee. mss. Amer. Nat. 1874, p. 453, without characters. Rostrum oblique, longer and narrower than the head, without transverse basal impression, above tlattened, base quadrangular, apex dilated, alse moderately prominent, tip feebly emarginate and with small smooth space. Scrobes veiy feebly arcuate, deep in front, very rapidly evanescent pos- teriorly, directed toward the lower margin of the eye. Antennae moderate, scape very slightly passing the anterior margin of the eye, feebly stouter at tip ; fuuicle 7-jointed, joints 1-2 longer and equal, 3-7 gradually shorter, oboonical ; club oval. Eyes oval. Thorax oval, broader than long, apex and base truncate, lobes moderate. Scutellum very small. Elytra oval, base very feebly emarginate, apex declivous. Metasternum short, side pieces indistinct, sutures entirely obliterated, intercoxal process moderate, trun- cate, second segment as long as the two following united, first suture arcu- ate. Tibiae mucronate at tip, articular surfaces of hind tibiae cavernous, tarsi normal. Surface densely scaly and with very short setae. Horn.] OPHRYASTINI. 55 Two species compose this genus. Intervals of elj'tra convex, alternately more elevated ; hu- meri not prominent torpidus. Intervals convex, equal ; humeri obtuselj^ prominent cinereus. N. torpidus Lee. (Hi/lobius) Pacif. R.R. Rep. App. 1, p. 55. Elongate oval, surface densely covered vpith cinereous scales and with very short sub-erect setoe. Head and rostrum longer than the thorax, sparsely punctured, densely pubescent, and with very few short sub-erect scale-like hairs. Rostrum flat above, tip with small triangular smooth space, a fine median line near the tip. Thorax slightly broader than long, sides in front rather strongly arcuate, then gradually narrowed to base, disc moderately convex with a rather broad median channel deeper in front, surface sub-granular and very densely scaly and with few sub-erect scale- like hairs. Elytra oblong oval, slightly wider at base than the thorax, humeri rounded, disc moderately convex, feebly striate, striae with mode- rate, rather closely placed, round punctures, each filled with a large scale, intervals convex, the sutural 2-4-6-8 more elevated, surface densely scaly, each interval with one row of short scale-like sub-erect hairs. Body be neath and legs very densely covered with scales similar to those of the upper surface. Length .26-. 28 inch ; 6.5-7 mm. Old specimens of this species are frequently brownish. One female iu the cabinet of Dr. LeConte has one of the short abdominal segments absent. Not rare iu Oregon. N. sequalis, n. sp. Form oblong oval, surface densely covered with cinereous scales, and with short erect setae. Head and rostrum slightly longer than the thorax, densely scaly, sparsely setose. Rostrum slightly rounded above, at tip with very small smooth space and without median line. Thorax slightly broader than long, sides, moderately arcuate, disc feebly convex, median line feebly impressed, surface granulatd-rugulose, moderately densely scaly and sparsely setose. Elytra oval slightly broader than the thorax, humeri obtusely prominent, disc moderately convex, feebly striate, striaj with distant punc- tures, intervals slightly convex, with a single row of setse on each, surface densely covered with cinereous scales. Body beneath and legs densely scaly, sparsely setulose. Length .24-. 26 inch ; 6-6.5 mm. A specimen of this species was sent to Lacordaire, who pronounced it a Phyxelis. This view I cannot accept as the scrobes are not superior as in that genus and the front is not transversely impressed. It is one of those forms (with the preceding species) which renders it extremely difficult at times to divide large masses of species into groups higher than genera. Occurs from Kansas to British Columbia. CIMBOCERA n. g. Rostrum somewhat narrower and slightly longer than the head, parallel and sub-cylindrical at base, slightly dilated in front, tip sinuate, at base ^6 OTIORHYXCHID^. [Horn. with very slight transverse impression, front slightly more convex, alfe moderately prominent. Scrobes moderately deep, short, arcuate and di- rected rather rapidly inferiorly. Antennae moderate, sub-apical, scape cla- vate, passing slightly the anterior margin of the eye ; funicle 7-jointed, joints 1-2 longer, the first longer than the second, 3-7 short, broader than long, the last very close to the club and broader ; club oval. Eyes oval, slightly pointed beneath. Thorax cylindrical, broader than long, apex and base truncate, sides moderately arcuate, lobes feeble, distinctly fimbriate. Scutellum invisible. Elytra regularly oval. Humeri rounded. Meta- sternum short, side pieces narrow, suture distinct. Intercoxal process moderate, arcuate in front ; second segment of abdomen as long as the two following united, first suture strongly arcuate at middle. Anterior tibiae alone mucronate, articular surfaces of hind tibiae feebly cavernous. Tarsi setose beneath, third joint not broader than the second and very feebly emarginate. Claws free. Surface scaly and hairy. The unique species on which the above genus is founded, resembles in general aspect certain elongate males of Trigono scuta pilosa. The genus by the form of its tarsi and the seventh joint of funicle, approaches Eupa- goderes of the group Ophryastes, differing however in the structure of the abdomen and metasternal side pieces. C. pauper, n. sp. Oblong oval, piceous, densely covered with pale brownish scales sparsely variegated with cinereous and with ei"ect hairs. Head and rostrum as long as the thorax, moderately densely covered with pale brownish and cinere- ous scales intermixed and sparsely hairy, rostrum feebly canaliculate. Thorax cylindrical, slightly broader than long, apex and base truncate, sides moderately arcuate, disc convex, densely scaly and sparsely hairy. Elytra oval, finely striate, striae indistinctly punctured except at the sides, intervals flat, densely scaly, each with two rows of moderately long yel- lowish hairs. Body beneath and legs much less densely scaly than above, sparsely hirsute. Length .24 inch ; 6 mm. This species is of the form and size of Pentelus griseus of Europe, and resembles it somewhat in vestiture. One specimen, Dacota. Group IV. Phyxcles. Rostrum slightly narrower than the head, alae not prominent. Scrobes superior, badly defined, feebly arcuate, rapidly evanescent posterioi'ly and not attaining the eyes. Second segment of the abdomen longer than the two following united, separated from the first by a straight* suture. The validity of the separation of this as a distinct grouj) in our fauna seems somewhat doubtful, the only character by means of which it may be distinguished from the preceding group is found in the position of the * Ijacordiiire says arcuate. It really appears so when the scales and crust re- main, but when these are removed the suture will be found as stated. Horn] OPHRYASTINI. 57 scrobes. I have adopted a group name in accordance with the only genus known to me, as experience has already shown that groups of genera formed on the Lacordairean basis are not at all times those which form from the basis adopted in the present memoir which is but a modification and ampli- fication of that suggested by Dr. LeConte. One genus occurs in our fliuna. PHYXELIS Sch. Phyxelis Schonh. Cure, vii, 1, p. 123. Rostrum longer and somewhat narrower than the head, slightly arcuate, parallel, sub-angular, tip slightly emarginate with small smooth space limited by an elevated line. Scrobes visible from above, moderately deep badly defined, arcuate and not attaining the eyes. Antennae moderate, scape gradually clavate attaining the margin of the thorax ; funicle 7-jointed, 1-2 longer, 3-7 oval, club oval. Eyes oval, slightly oblique, coarsely granu- lated. Thorax broader than long, sides moderatelj^ arcuate, ocular lobes feeble, apex and base truncate. Scutellum invisible. Elytra rather broadly oval, convex, not wider at base than the thorax and feebly emarginate, humeri obtuse. Metasternal side pieces narrow connate without distinct suture. Intercoxal process broad, truncate. Second segment of abdomen longer than the two following together, first suture straight. Tibia? mucro- nate, posterior corbels open. Tarsi short, stout, fourth joint deeply bilobed, claws small, free. The presence of thoracic lobes is the only character in the way of placing this genus near Gercopeus. P. rigidus Say {Barynotus) Cure, of N. A. p. 2 ; Schonh. Cure, ii, p. 312; Schonh. {Phyxelis) Cure, vii, 1, p. 124 ; glomerosus Boh. Sch. Cure, vii, 1, p. 123 ; setiferus Boh. loc. cit. p. 124. Form ovate, piceous, surface moderately densely scaly and obscured by a luteous exudation coating. Head and rostrum longer than the thorax, densely scalj^ and sparsely setigerous, rostrum at base with more or less distinct transverse impression. Thorax somewhat variable in form, broader than long, sides modei'ately arcuate, usually narrowed in front, base feebly arcuate, disc convex, median line more or less impressed, surface densely scaly and sparsely setigerous. Elytra broadly oval, base truncate, humeri sub-rectangular, disc moderately convex indistinctly striate, intervals feebly convex, each with a single row of not closely placed sub-erect setfe. Body beneath clothed as above, legs sparsely setigerous. Length .14-20 inch ; 3.5-5 mm. The color of the coating varies very greatly, usually pale ochreous some- times dark brown, and it adheres so closely and so obscures the true sculp- ture of the insect as to render it almost impossible to obtain an accurate idea of the surface. I cannot find any reason for distinguishing three species in our fauna. Occurs from Canada to Georgia. Not rare. PROC. AMKR. PHILOS. SOC. XV. 96. H 58 ■ OTIORHYNCHID^. [Horn. Tribe II. oxiokhtxchi.m. Antennae long, scape always passing the eyes behind. Scrobes variable but never at the same time linear and directed interiorly. Metasternal side pieces usually entirely concealed by the elytra, rarely of moderate width. Mesosternal epimera small. Elytral striae entire in all our genera, tenth or marginal always distant from the preceding in its entire length. It is extremely difficult to give characters which define tribes of Rhyn- chophora with any degree of certainty, and it is frequently found that a species can only be assigned a position by the consideration of almost its entire structure with considerable allowance for facies, and not a little, by the experience of the student. Some of the genera placed in the OtiorhyncMni by Lacordaire, have been removed and will constitute portions of tribes in Division ii, Avith wide metasternal side pieces. Our genera form four groups which may be distinguished as follows : Funicle 6-jointed ; articular surface of hind tibiae enclosed, tips of hind tibite truncate with broad oval space A^^raplii. Funicle 7-jointed ; articular surface free, tips of hind tibiae with a single row of fimbriae. Claws free. Antennae long ; outer joints of funicle long. otiorhynchl. Antennae shorter; outer joints short or moni- liform Tracliyphlcel. Claws connate. Antennae as in OtiorhyncM Pcritcli. The Periteliaxe placed after the Otiorhyneliiiron\ Wxc'ir greater similarity of form and structure, the only difference between the two tribes is found in the claws. Group I. A§:rai>hi. Antenni>> moderate, scape longer than the funicle and club, moderately arcuate ; funicle 6-jointed ; club broadly oval slightly flattened, composed in great part of the first joint only, the other joints retracted and very in distinct. Tarsi long, slender, third joint very feebly emarginate and scarcely wider than the second. Hind tibiae truncate at tip with broad, oval smooth space, cotyloid cavities internal. Anterior tibi« with outer apical angle slightly prolonged ; anterior and middle tibiae with inner angle mucronate. The above characters appear to w^arrant the separation of Agraplms as a group by itself as suggested by Lacordaire who, however, failed to notice the structure of the antennal club and placed the genus in a group in which the hinder cotyloid cavities are open. These latter are really very strongly cavernous, more so in fact than in any other genus in our fauna. Agraplms alone constitutes this group. Horn] OTIORHYNCHINI. 59 AGRAPHUS Sell. Agraphus Schonlierr, Gen. Cure, ii, p. 640. Rostrum longer and narrower than the head, with an oblique constric- tion behind the scrobes, tip slightly declivous and truncate. Scrobes dis- tant from the tip, deep in front and enclosed by an elevated margin, broadly open and shallow behind. Front with shallow transverse impres- sion. Eyes oval, oblique, pointed beneath. Antennae sub-median, densely scaly, scape attaining the thorax, funicle much shorter than the scape, 6- joiuted, joints gradually shorter, sixth rather close to the club ; the latter oval obtuse, scaly, composed in great part of the first joint only. Thorax oval, truncate at apex, broadly arcuate at base. Scutellum small, triangular. Elytra very convex oval, slightly attenuate behind. Legs moderate, thighs rather sti-ongly clavate, tibia? slightly dilated at tip. Tarsi slender, ciliate beneath, three fourths the length of the tibiit, joint three feebly emarginate and scarcely wider than the_ second. Claws free. Second segment of abdomen not longer than the two following united, separated from the first by a nearly straight suture. A, bellieus Say, (Peritelus) Curculionida, p. 13 ; Am. Ent. i, p. 274 ; leucophams Gyll. Sch.Gen. Cure, ii, p. 641. Form elongate oval, densely covered with cinereous scales faintly clouded. Head and rostrum slightly longer than the thorax. Thorax oval, broader than long, sides moderately arcuate, apex narrower than the base and slightly truncate, base arcuate, surface regularly convex, sparsely and coarsely punctured. Elytra oval slightly attenuate posteriorly, not wider at base than the thorax, nearly three times as long and conjointly emarginate at base ; surface finely striate, strife distantly punctured, inter- vals very feebly convex. Body beneath and legs. densely covered with cinereous scales, and the tibiae sparsely fimbriate. Length .26-. 34 inch ; 6.5-8.5 mm. Occurs from Pennsylvania to Florida. Group II. otiortaynchl. Antennae long, rather slender, 'scape passing slightly the anterior margin of the thorax, funicle 7 jointed, first two joints longer than the others, joints 3-7 obconical, moderately long, club oval, acute at tip. Cotyloid cavities of hind tibiae terminal. Tarsal- claws free. The longer antennae as defined by the form of the outer joints of the funicle, alone distinguish this group from the next. The genera are not numerous and are known by the characters given in the following table : Metasternal side pieces entirely concealed by the elytra ; suture obliterated. Hind tibiae with two short fixed spurs OTIORHYNCHUS. Metasternal side pieces linear ; suture distinct in its entire length. 60 OTIORHYNCHID.^. [Horn. Hind tibia.' with two short, fixed, terminal spurs, first suture of abdomen feebly arcuate. Front slightly transversely im- pressed SCIOPITHES, Hind tibiae without terminal spurs, first suture strongly arcuate at middle. Front not impressed AGRONUS. Metasternal side pieces moderately wide, su- ture distinct. Hind tibias without terminal spurs ; first suture of abdomen strongly arcuate at middle NEOPTOCHUS. The fixed spurs of the hind tibise appear not to have been noticed by any author ; they are in fact, diflScult to see in some species, while in others, quite large and prominent (0. mmtrus). I am not at present aware of the occurrence outside of the trilie Otiorhynchini of any similar structure. Thecesternus has the tibise bimucronate. The female of Ithycerus presents curious characters. On each tibia in addition to the usual mucro are two spurs, one ot which at least is moveable. The male has the tibiae simply mucronate. OTIORHYNCHUS Germ. Otiorhynchus Gerniar, Ins. Spec. nov. p. 343. Rostrum as long as the head, moderately robust, more or less dilated at tip which is notched at middle. Antennae anterior long ; scape long, very slightly arcuate not longer than the funicle and club, attaining the thorax ; funicle Tjointed, first two joints longer, joints 3-7 obconical. Scrobes supe- rior deep, sides strongly divaricate behind. Eyes rounded or slightly oval. Thora.xoval, longer than wide. Elytra variable, broadly or elongate oval. Scutellum very small or indistinct. Legs moderately long, thighs clavate, tibiae feebly arcuate near the tip. Cotyloid cavities of hind tibiae terminal. Tarsi moderately" dilated, spongy pubescent beneath, third joint deeply bilobed. Second abdominal segment not as long as the two following united, separated from the first by an arcuate suture. This genus contains in our fauna species which have been introduced from Europe, and which have established themselves in the north-eastern parts of our territory. Two are found in Greenland, which also occur in the extreme north of Europe, their distribution being due to natural laws and not through the agency of commerce. The species are known as follows: Femora toothed. Tooth very small. Rostrum sulcate, at tip with a bifid carina, elytra sulcate sulcatus. Tooth large, rostrum not sulcate, tip not carinate, elytra not sulcate lignDus. Femora not toothed. Horn.] OTIOEHYNCHINI. 61 Tliorax coarsely granulate. Rostrum sulcate, elytra with rough sculpture rugifrons. Rostrum finely carinate, elytra feebly sculp- tured maurus. Thorax smooth, finely punctured. Rostrum flat above, elytra nearly smooth monticola. O. sulcatus Fab. Syst. Ent. p. 155 ; Herbst, Kiifer, vi, p. 347, pi. 87, fig. 5, ? Sayi Boh. Sch. Gen. Cure, vii, p. 523. (European synonymy omit ted). Form oblong, brown black, sub-opaque. Rostrum sulcate at middle, tip emarginate and with a V shaped carina ; surfece sparsely and coarsely punctured and sparsely hairy. Tliorax sub-cylindrical, sides moderately arcuate, widest in front of middle, not longer than wide, surface Avith rounded tubercles rather closely placed, each bearing a short hair. Elytra oblong oval, disc slightly flattened, humeri obtusely rounded, surface broadly striate, striae coarsely punctured, intervals feebly convex and with a row of shining rounded tubercles rather closely placed and with small patches of short yelloAvish hair irregularly placed. Body beneath black, shining and very sparsely hairy. Femora strongly clavate, deeply sinuate near the tip and with a very small acute tooth. Length .34 inch ; 8.5 mm. This species has been so often described in easily accessible European publications, that I consider it unnecessary to add to the above description, this with the table being sufficient to enable it to be recognized by the student of our fauna. Occurs in Massachusetts, Canada, Newfoundland and Nova Scotia. O. ligneus Oliv. Ent. v, 83, p. 378, pi. 31, fig. 473. Form oblong, color piceous, shining. Rostrum flat, emarginate at tip, surface very coarsely and closely punctured, between the eyes a deep puncture. Thorax nearly spherical, truncate at apex and base, surface tuberculate, (at middle the tubercles become confluent in rows with deep sulci between them), each tubercle punctured at summit and bearing a short hair. Elytra oval, striate at the sides, striae obsolete on the disc and with coarse punctures closely placed, intervals flat on the disc and feebly mui-icate, at sides moderately convex and slightly tuberculate. Legs piceo- rufous, femora clavate, sinuate near the tip and with a moderately strong tooth bearing a denticle on its free edge. ^ Length .20 inch ; 5 mm. This is the smallest species which has occurred with us, and may be easily known by the femoral armature and the nearly spherical thorax with its peculiar sculpture. Occurs in the New" England States. O. rugifrons Gyll. Ins. Suec. iii, p. 319. This species resembles sulcatus, but is somewdiat more robust and with the elytra more broadly oval, and the humeri more oblique. The femora are moderately sinuate near the tip and without tooth. The surface is 02 0TI0KHY:N^CHID^. [Horn. sparsely hairy, tlie hairs of the elytra being short and arranged in a double row on each interval. Length .38 inch ; 9.5 mm. Occurs in the Middle States. O. maurus Gyll, Ins. Suec. iii, p. 293 ; nodosus O. Fabr. Fauna Gronl. p. 187. ^ Black, moderately shining. Rostrum flat above, without triangular im- pression at tip, obtusely carinate at middle, a slight perforation between the eyes, surface coarsely punctured, sparsely pubescent. Thorax slightly broader than long, sides arcuate, apex truncate, base feebly arcuate, surface densely tuberculate and sparsely pubescent. Elytra regularly oval, finely striate, striae coarsely punctured, intervals flat, slightly wrinkled and with patches of scale-like hairs irregularly interspersed. Body beneath and legs black, femora unarmed. Length .38 inch ; 9.5 mm. Easily known bj^ the comparatively smooth elytra and granulate thorax. Occurs in Greenland. O. monticola Germ. Ins. Spec. nov. p. 361 ; arcticus O. Fabr. Fauna Gronl. p. 188. Oblong oval, black, shining. Rostrum above flat, sparsely punctured, median line smooth, a puncture l)etween the eyes. Thorax longer than wide, widest in front of middle, sides moderately arcuate and very slightly sinuate near the base ; surface shining, finely and rather sparsely punc- tured. Elytra regularly oval, surface not striate, but with moderate punc- tures in indistinct rows, intervals irregularly bi seriately punctulate. Body beneath black, shining, more rugulose than above. Femora unarmed. Length .26-. 28 inch ; 6.5-7 mm. The tip of the rostrum on each side of the emargination is slightly pro- longed in an obtusely conical process. The same may be seen though to a much less extent in the other species. This species is easily known by its smooth shining surface and sparsely punctured thorax. Occurs in Greenland. SCIOPITHES, n. g. Rostrum stout, not longer than the head, cylindrical and slightly narrowed toward the tip which is emarginate and with a crescentic im- pressed space, a very feeble impression between the eyes. Scrobes superior, cavernous and of oval form. Antennae long, scape passing the anterior margin of the thorax, rather slender, gradually thicker toward tip and rather strongly arcuate ; funicle 7-jointed, the first two joints moderately long, joints 3-7 obconical gradually shorter ; club elongate oval. Eyes oval, slightly longitudinal. Thorax cylindrical, sides slightly arcuate. Elytra rather broadly oval, moderately inflated. Scutellum wanting. Metasternum very short. Intercoxal process of abdomen short, broad, truncate in front, second segment but little longer than the third separated from the first by a nearly straight suture. Cotyloid cavities of hind tibiae terminal, the tibiae with two short fixed spurs ; anterior and middle tibiae finely mucronate. Claws free. Horn.] OTIORHYN^CHINI. 63 This genus cannot by the above characters be referred to any other group, established by Lacordaire, than the Otiorhijnchides vrais, in whicli I can find no genus with similarly formed antenna! scrobes. The metasternal side pieces although very narrow are distinct and have the suture plainly visible in its entire length. This genus represents in our fauna Sciobius of South Africa. S. obscurus, n. sp. Form oral, body densely covered with luteous scales, elytra with darker discal space limited behind by a very sinuous line. Head and rostrum together very little longer than the thorax, the latter with an extremely fine median carina, surface sparsely punctured. Thorax cylindrical, slightly wider than long, sides feebly arcuate, apex and base truncate, surface coarsely but sparsely punctured and with a shallow fovea on each side near the base, scales dense, color luteous, fine median and broader lateral lines paler. Elytra oval, very slightly attenuate behind, not wider at base than thorax, one-third longer than wide, striate, striae punctured, intervals flat, the middle with one, the other with two rows of very short hairs, surface densely covered with luteous scales, with large irregular discal, darker space limited behind by a very irregularly sinuous line. Body beneath sparsely scaly. Legs densely scaly and sparsely hairy. Length .32-. 24 inch ; 5.5-6 mm. The style of coloration of this species nearly that of Cercopeus. It may however, become entirely unicolorous. Occurs in California, Oregon and Vancouver. AGRONUS, n. g. Rostrum slightly longer than the head, and slightly narrower to tip, cylindrical above, slightly flattened and with fine groove, tip truncate with semicircular naked space. Scrobes superior, very short, cavernous, slightly converging and terminal. Eyes small, round, moderately prominent. Antennae long, sub-terminal, scape passing the anterior margin of thorax, very gradually thicker to tip and feebly arcuate, funicle 7-jointed, first two joints longer, joints 3-7 obconical and gradually shorter; club elongate oval. Thorax cylindrical, base and apex truncate, sides very feebly arcuate. Elytra oblong oval, not wider at base than thorax. Scutellum wanting. Metasternum short, side pieces narrow, suture indistinct. Inter- coxal process of abdomen short, broad, truncate, second segment longer than each of the two following, separated from the first by an arcuate suture. Cotyloid cavities of hind tibiae terminal, the margin simply fim- briate with short spiuules and without terminal spurs. Tibiae not mucro- nate. Claws small, free. This genus resembles the preceding in most of its characters, and difi"ers in the absence of spurs to the hind and the mucro to the anterior and mid- dle tibiae ; tlie less distinct metasternal side pieces and the structure of the second abdominal segment. Allied to Parameira by Seidlitz' table, difi'ers in its shorter scrobe and more slender antennae. 04 OTIORHYNCHrD^. [Horn. A. cinerarius, n. sp. Oblong oval, densely covered with uniformly colored cinereous scales. Rostrum and head longer than the thorax, sparsely punctured. Antennae rufous, sparsely liairy. Thorax cylindrical, slightly wider than long, apex truncate and slightly narrower than the base, sides feebly arcuate, surface sparsely punctured. Elytra oval, slightly oblong, striate, striae coarsely and rather closely punctured, intervals flat, densely scaly and with sliort, semi-erect scale-like hairs. Body beneath very sparsely clothed with sliort hairs. Legs rufous, very sparsely scaly and pubescent. Length .14-. 18 inch ; 3.5-4.5 mm. A rather inconspicuous insect resembling the preceding in form but more elongate. In some specimens, probably males, the elytral intervals are slightly alternating in width. Collected by Mr. G. R. Crotch in the Sierra Nevada Mountains of Cali- fornia, near Lakes Tahoe and Donner. A. deciduus, n. sp. Form oblong, piceous, moderately densely clothed with scales of pearly lustre. Head and rostrum slightly longer than the thorax, densely scaly and sparsely punctured, with short, pale, erect hairs sparsely placed. An- tennae piceous. Thorax broader than long, cylindrical, sides feebly arcuate, disc moderately convex, surface sparsely punctured and slightly rugulose and sparsely covered with pearly scales and erect pubescence. Elytra oblong oval, obsoletely striate, striae with moderately coarse and close punctures, intervals flat, not densely scaly and each witli tAvo rows of moderately long erect pale hairs. Body beneath black, sparsely scaly and hairy. Legs sparsely scaly and hairy, piceous. Length .16 inch ; 4 mm. Of the same form as the preceding, and somewhat recalling the form of ScytJiropus. Differs from cinerarius by the pearly scales less densely placed and more deciduous and by the much longer hairs covering the surface. Collected at San Francisco. NEOPTOCHUS n. g. Rostrum stout, not longer and as wide as the head, cylindrical, flattened above, tip emarginate. Scrobes lateral, terminal, cavernous in front, shallow and broad behind, attaining the eyes. Eyes round, moderately convex. Antennae long, scaly ; scape passing tlie anterior margin of the thorax, slender, very slightly thickening towards the tip, arcuate ; funicle 7-jointed, first two joints long, joints 3-7 conical gradually decreasing in length, club oval. Thorax short, cylindrical, sides feebly arcuate. Scutel- lum absent. Elytra oval, moderately inflated. Metasternum short ; side pieces moderate, suture distinct. Intercoxal process broad, truncate ; second abdominal segment as long as tlie two following, separated from the first by a feebly arcuate suture. Cotyloid cavities of hind tibiae terminal, tibiae without fixed spurs or mucro, anterior and middle tibiae not mucro- nate. Claws small, free. Horn. OTrORHYN^CULNT. 65 The form of the ouly species composing this genus is much that of Ptochus. N. adspersus Boh. {Ptochus) Scli. Gen. Cure, ii, p. 48G ; Seidl. Berl. Zeits. 1868. p. 41, (Beiheft) ; tesselatus Boh. loc. cit. p. 487. Form oval, robust, densely clothed with pale cinereous scales, with obscure spots near the humeri in some specimens. Head and rostrum longer than the thorax. Rostrum with smooth crescentic space at tip, above slightly transversely concave ; surface sparsely punctured and densely scaly. Thorax transverse, cj'lindrical, sides feebly arcuate, l)ase and apex truncate, surface coarsely punctured and irregular, and moderately densely scab". Elytra broadly oval, convex, three times the length of thorax, striate, strise with distant punctures, intervals flat, densely scaly, each with a row of very short erect scales. Bbdy beneath and legs denselj* scaly. Length .14-. 16 inch ; 3.5-4 mm. This species from its Ptoc7ms-\ike form cannot be confounded with any other in the present group, while the wider metasternal side pieces and the absence of the fixed spurs to the hind tibia?, the lateral scrobes and scaly antenmie serve to distinguish the genus. Bohemann says the femora have a small tooth, probably from an error of observation, as on p. 487, the tooth is not mentioned in the synonj-m. Appears to be not rare in Florida. This insect has been referred to the genus Ptoclmshy Seidlitz (loc. supra cit. ) an opinion which I cannot adopt, the broad intercoxal process and the free claws appear to me abundantly sufficient to separate it. Species with, free claws are, however, admitted by Seidlitz in Ptochus. Group III. Peritell. Antennte long, scape attaining or slightly passing the anterior margin of the thorax ; funicle variable in length, 7-jointed ; club oval. Tarsal claws connate. The cotyloid surfaces of the hind tibise are entirely open in all the genera of this group, glabrous in six, scaly in the remainder. In the genera in our fauna the rostrum is comparatively or very short, nothing occurs at all approximating the length of that of Peritelus grtseus of Europe. The alae of the rostrum are divergent in but one genus, and then but feeblj'. Our genera are as follows : First abdominal suture straight. Scrobes lateral. Aire ■ of rostrum slightly divergent ; first two joints of funicle equal .' PARAPTOCHUS. First abdominal suture arcuate. Cotyloid surface of hind tibise glabrous. Eyes without orbital groove. Hind coxae open externallj'^ ; first abdominal •"> segment behind them very short MYLACITS. Hind coxre closed externallj' ; first abdomi- nal segment normal. PROC. AMER. PHILOS. SOC. XV. 96. I 66 OTIOKHYNCHID^. [Horn. Scrobes superior and convergent above. Rostrum longer than the head, scrobes very short terminal ; body with scales and setsE Rostrum short ; scrobes nearly attaining the eyes ; body scaly only Scrobes more lateral not converging above. Scape as long (or very nearly so) as the funicle ; tibia3 finely denticulate within Scape much shorter than the funicle ; tibiffi not denticulate Cotyloid surface of hind tibiae densely scaly. Scrobes superior, slightly convergent above. Eyes indistinctly surrounded by a groove. Scape feebly arcuate Scrobes lateral, not at all convergent. Orbital groove deep. Scape arcuate and slightly twisted ; scrobes lateral, deep, and attaining the eyes Scape straight or very feebly arcuate. Scrobes very shallow posteriorly, not attaining the eyes Scrobes deep, attaining the eyes THRICOLEPIS. PERITELOPSIS. GEODERCES. ARAGNOMUS. DYSTICHEUS. EUCYLLUS. THINOXENUS. RHYPODES. The genera above indicated are so arranged as to exhibit a gradual transi- tion from the Ptochoid forms of the preceding group to the Trachyphloeoid forms of the next. The rostrum tends to become shorter, also, as the advance is made from the first to the last genus. The vestiture varies. In one species Mylacus saccatus Lee, the surface is sparsely pubescent without scales, Peritelopsis globiventris Lee, is scaly only without trace of hairs or setae ; all the remaining species are densely scaly and with short erect setse. As a general rule the metasternal side pieces are extremely narrow in the earlier genera (entirely concealed posteriorly in 3T!/lacus) and become more distinctly wider in the later genera, the suture, however, is so very indistinct as to make it almost impossible to use the character systematicallj'. The scrobes vary greatly in form. In several genera they are plainly superior and rather short, converging above. In others it is not easy to determine whether to call them lateral or superior. When the scrobes are much more distinctly open when viewed from above than when seen from the sides they are called superior and conversely. None of our genera show a lateral form of scrobc such as is seen in Omias or Liclienopliagus. The occurrence of short fixed spurs to the hind tibiae in addition to the Horn.] OTIOEHYN^CHINI. 67 mucro and at all events entirely independently of it, is noticed here. In one genus their occurrence appears to be sexual, in others it cannot be so referred. The occurrence of scaly tips to the hind tibiae does not appear, from de- scriptions, in any foreign genus of the group. Those in our fauna might form a distinct group from the Periteli, and would have been so consti- tuted, but I find on examination that LichenopTiagus would occupy an in- termediate place by the groove surrounding the eyes and by the entirely glabrous tips of the hind tibia?. It is also to be regretted that one of our species only appears to be congeneric Avith any previously described. PARAPTOCHUS Seidl. Paraptoehus Seidlitz, Berl. Zeitschr, 1868. Beiheft, p. 35. Rostrum scarcely as long as the head, and separated by an arcuate im- pression, robust, sub-quadrangular, tip emarginate with a smooth space limited by an angular line, alte moderately divergent. Scrobes deep in front, moderately arcuate, gradually shallower posteriorly and attaining the eye. Antenme moderate, sub-terminal, scaly; scape, feebly clavate, slightly arcuate and barely attaining tlie margin of the thorax ; funicle 7-joiuted,. first two joints longer equal, joints 3-7 gradually shorter, club oval. Eyes, round, coarsely granulated and not prominent. Thorax cylindrical, slightly narrower in front, sides feebly arcuate. Scutellum wanting. Elytra oval^ convex. Metasternal side pieces indistinct, narrow. Intercoxal process of abdomen broad, truncate, second abdominal segment not as long as the two. foUoAving united and separated from the first by a straight suture. Claws connate. The above genus contains only Peritelus sellatus Boh. Tlie straight first alxlomiual suture excludes it from the genus to which it has been re- ferred, and gives it considerable affinity witli Caterectus. P. ssllatus Boh. {Peritelua) Eugen. Resa 18o9, p. 126 ; californicus {Paraptoehus) Seidl. Berl. Zeitschr. 1868, Beiheft, p. 35. Form oval, moderately robust. Head and rostrum as long as the thorax, rostrum with fine median line, surface densely scaly, scales dark cinereous, with whitish setse sparsely placed. Thorax cylindrical, slightly narrower in front, broader than long, sides feebly arcuate, apex and base truncate, disc moderately convex, coarsely and deeply punctured, surface densely scaly and with erect whitish setpe, scales brownish in a broad median band, pale cinereous at the sides. Elytra oval, slightly inflated, nearly three times as long as the thorax, striate, strife punctured,, intervals flat with erect set* irregularly placed, surface densely covered with cinereous scales with large discal pale-brownish space limited behind by a sinuous darker line. Body beneath less densely scaly. Length .18 inch ; 4.5 mm. When deprived of scales the surface color is pale brownish. The an- terior and middle tibiae are very feebly mucronate and the hind tibia; of the 9 have two short fixed spurs. The color of the scales varies and the large- 68 OTIOKIIYNCIIID^E. [Horn. discal spot of the elytra may become evanescent. The erect hairs are also variable, and assume the color of the surface in which they are placed. Collected at Crystal Springs, California, by Mr. G. R. Crotch. MYLACUS Sch. Mi/lacus Schon. Gen. Cure, viii, 1, p. 144. Rostrum as long as the head and slightly narrower to the tip which is very feebly eraarginate and with smooth space, above broadly but feebly channeled, a feeble transverse impression at base, alae feebly prominent. Scrobes superior, very slightly convergent, deep in front, broadly open and very shallow posteriorly, not attaining the eyes. Antennaj moderately long, sub-apical, sparsely hairy ; scape gradually clavate, slightly arcuate, attaining the anterior margin of thorax ; funicle 7-jointed, joints 1-2 longer, 3-7 sub-moniliform, club oval. Thorax cylindrical, short, transverse. Scutellum wanting. Elytra globoso-oval. Metasternum very short, side pieces entirely covered posteriorly by the elytra. Hind coxae open exteri- orljr attaining the elytral margin. Intercoxal process of abdomen very broad, truncate ; first segment deeply emarginate by the coxte and very short behind them ; second abdominal segment very little longer than the third separated from the first by an arcuate suture. Tibisie not mucronate. Claws almost entirely connate. Body pubescent. M. sac3atus Lee. {PtocJius) Pacif. R. R. Rep. App. 1, p. 56. Form oval, color black, shining, surface sparsely clothed with short cine- reous pubesence. Head and rostrum one and a-half times longer than the thorax, moderately densely punctured, sparsely pubescent. Thorax trans- verse, twice as broad as long, sides feebly arcuate, apex and base truncate, disc convex, surface densely and at the sides confluently punctured, surface sparsely pubescent. Elytra broadly oval (^ or globoso-oval 9 , with strioe of coarse punctures rather closely placed. Body beneath black, shining, metasternum densely punctured at the sides, abdomen smoother, more shining, surface sparsely pubescent. Legs black, sparsely pubescent. Length .12-16 inch ; 3-4 mm. The hind tibiae of the males have at the tip of the hind tibiie immedi- ately in front of the tarsal articulation a very feeble emargination, the female has two small fixed spurs. There can be little doubt that this species should be referred to Mylacus. The characters given in the table supplemented by those above given will serve to distinguish it from all others in our fauna. Occurs in California and Oregon. THRICOLEPIS n. g. Rostrum nearly as long as the head, slightly narrower towards the tip which is feebly emarginate, alae not divergent. Scrobes superior, short, terminal, cavernous, somewhat reniform in shape and convergent above. Antennfe moderate, sub-terminal, scape feebly arcuate, attaining the mar- gin of the thorax ; funicle 7-joiuted, longer than the scape, first two joints Horn.] OTIOEHYNCHINI. 69 longer than the others, joints 3-7 obconical ; clul) oval. Eyes roimd. Thorax cyUndrical, sides feebly arcuate, narrowed in front. Scutelluninot visible. Elytra broadlj^ oval, convex. Intercoxal process broad, truncate. Second segment of abdomen as long as the two following united, separated from the first by a strongly arcuate suture. Tibiae not inucronate. Claws connate. Body scaly and with erect setoe. This genus is closely allied to Peritelas. It differs at first sight in tlie vestiture of the body. The scrobes are much shorter and very decidedly convergent above, the alee not divergent, antennae, especially the scape, shorter. The genus is also allied to Mylacus in which, however, the sur- face is pubescent. Two species are known to me, both Western. T. inornata, n. sp. Form oval, moderately robust. Head and rostrum longer than the thorax, surface sparsely punctured and not densely scaly. Antennae rufo- testaceous, sparsely llair}^ Thorax cylindrical slightly wider than long, apex and base truncate, sides feebly arcuate, slightly narrower in front and very feebly constricted at the. sides behind the apex ; surface coarsely and deeply punctured, sparsely scalj^ and with erect hairs. Elytra nearly three times as long as the thorax, oval, slightly inflated, Avitli rows of moderately coaree, closely placed punctures, intervals flat, moderately densely scaly and with a row of short black erect setae. Body beneath sparsely scaly, abdomen sparsely punctured and very sparsely hairy. Legs rufo-testa- ceous or slightly darker, sparsely hairy. Length .14 inch ; 3.5 mm. The scales covering the body are of pearly lustre and very easily re- moved, and beneath them the surface is black and shining. The elytra are not striate, the punctures merely form regular rows and are of large size and rather closely placed. In some specimens of narrower form, and which are probably males, the striie of the disc are slightly impressed near the base. Specimens occur of slightly larger and smaller size than the measurement given. Occurs from northern California to Utah. , T. simulator, n. sp. Form oval, moderately robust. Head and rostrum longer than the thorax, surface very densely scaly and with very short set*. Antennae pale rufous, slightly hairy, scape sparsely scaly. Thorax wider than long, sub-cylindrical, slightly narrowed in front, base and apex truncate, sides feebly arcuate, modertely convex, surface coarsely and rather deeply jDunc- tured, densely scaly, scales cinereous and with a broad median space darker. Elytra oval, slightly inflated, surfiice finely striate and with rather small punctures distantly placed, intervals flat, densely covered with cinereous scales, with fuscous spots irregularly placed, a sinuous baud of the same color at the posterior declivity and with very short erect setae in a single row on each interval. Body beneath moderately densely scaly. Legs rufous, moderately densely seal 3' and with short hairs. Length .13 inch ; 3 mm. 70 OTIOKHYNCHID^. [Horn. This species imitates some of the least distinctly marked specimens of Paraptochus sellatus. The scales are very densely placed and are closely adherent to and conceal the surface. Their color is pale, cinereous, ex- cept a broad median thoracic space and the few spots near the base of the elytra and the very in-egular line at the declivity which are fuscous. This species and the preceding are similar in fomito Peritelm griseiis of ^uroi^e, and are about two-thirds the size. Collected at Fort Tejon, California, by Mr. G. R. Crotch. PERITELOPSIS n. g. Rostrum not as long as the head, slightly flattened, narrower to tip which is feebly emarginate, alae not divergent. Scrobes superior, cavern- ous, very slightly arcuate, convergent above, attaining the eyes. Eyes very slightly oval. Antenna} (entirely wanting) apical. Thorax cylin- drical, narrower in front, sides moderately arcuate. Scutellum small. Elytra sub-globoso-oval. Metasternal side pieces extremely narrow. In- tercoxal process broad, truncate. Second abdominal segment savrcely as long as the two following separated from the first by an arcuate suture. Femora moderately clavate, tibiai finely mucronate, claws connate. Body scaly. This genus is doubtless very near Peritelus. Theala? of the rostrum are not at all divergent, and the rostrum very short, Possibly the genus might enter one of Seidlitz' groups of Peritelus. P. globiventris Lee. {Ptoclms) Pacif. R. R. Rep. App. 1, p. .56. Form oval, surface covered but not densely, with scales of a pearly lustre. Head and rostrum scared}" longer than the thorax, rostrum with a smooth space at tip, limited by an angulated line, surface coarsely and deeply punctured and sparsely seal}', vertex with a short linear impression. Thorax broader than long, slightly narrower in front, sides moderately arcuate, apex and base truncate, disc moderately convex, coarsely and deeply punctured, surface sparsely scaly. Elytra sub-globoso-oval, longer than broad, striate, strite (those of disc at base not impressed) with moderate punctures not closely placed, intervals at sides and apex slightly convex, surface scaly. Body beneath coarsely punctured, sparsely scaly, abdomen very sparsely punctured and with few hairs. Legs piceous, sparsely scaly and hairy. Length .16 inch ; 4 mm. The form of this insect is nearly that of Peritelus griseus, but with a much shorter rostrum. The scales of the surface are not densely placed, and the piceous color of the body is readily seen between them. One specimen deprived of antennae, from California. GEODERCES n. g. Rostrum nearly as long as the head, robust, parallel, sub-cylindrical, at base a feeble arcuate impression, tip feebly emarginate, a smooth space limited behind by an angulate line, alte not prominent. Scrobes lateral, narrow, not attaining the eyes, crescentic when viewed laterally. Antennae Horn.l OTIORHYN^CHINI. 71 moderately long, scape veiy nearly as long as the funicle, slightly passing the anterior margin of thorax : funicle T-jointed, first two joints longer, joints 8-7 elongate, ol)Conical gradually shorter ; club elongate oval. Eyes round, moderately prominent. Thorax oval, truncate at apex and base. Scutellum not visible between the elytra. Elytra oval convex. Meta- sternum short, side pieces narrow, indistinct. lutercoxal process broad, truncate ; second segment of abdomen shorter than the two following united, separated from the first by a feebly arcuate suture. Tibiic with very short mucro at tip, and very minutely denticulate internally. Claws connate. Surface densely scaly and with short erect hairs. Tiiis genus, of which Tnichi/phkem melaiiothrix K))y. is the type, has nothing at all resembling it outside of our fauna. It may be said to re- semble TrigonosGuta in form with a somewhat narrower thorax. In addi- tion to the minute mucro, the hind tibiaj have, in addition, two short fixed spurs. As these are found in all the specimens before me, I cannot sup- pose them to be sexual. The denticulations of the tibiae are minute, and though sulflciently distinct may easily be overlooked. This genus seems by the table of Seidlitz to l)e allied to Epiplianeus. Two species occur in our fauna, of very similar aspect, which difler as follows : Second joint of funicle distinctly longer than the first ; erect hairs of elj'tra very short, feebly erect and all black melanothrix. Second joint slightly shorter than the first ; elytra hairs longer, erect and white and black intermixed incomptus. G. mslanotbrix Kby. (Traohi/phkeas) Fauna Am. Bor. iv, p. 202. Form oval, robust, densely covered with brownish scales, with short paler markings very indistinct, and with very short,- semi-erect blackish hairs very sparsely placed. Head and rostrum very slightly longer than the thorax, a short impressed line at vertex, rostrum flat, coarsely but sparsely punctured and densely scaly. Antennae castaneous, sparsely pubescent. Thorax oval, very slightly wider than long, truncate at apex and base, a slight constriction one-fourth behind the apex, sid3s arcuate, disc moderately convex, coarsely but very evenly perforato-punctate, sur- face densely covered with brownish scales with a narrow paler line at the sides. Elytra oval, sub-globose, about one-fourth longer than wide, base emarginate, humeri oblique, sides sub-parallel for a short distance at middle, apex very obtusely rounded, surface densely covered with brownish scales with indistinct paler spaces at the sides of the declivity, and with striiB of moderate punctures not very closely placed. .Body beneath castaneous, coarsely punctured and scaly, abdomen more sparsely punctured and with hair-like scales. Legs densely covered Avith brownish scales and sparsely hairy, femora with a broad ring of whitish scales near the tip. Length .22-. 32 inch ; 5.5-8 mm. In those specimens with the markings more clearly defined, the narrow pale line of scales at the side of the thorax continues on the elytra, becom 12 OTIORHY^fCHID^. [Horn. iiig broader as it passes jiosteriorly, where it is bounded in front and behind by a line of darker scales. I have two specimens before me of an entirely uniform pale-brow^n color. Occurs in Canada and New York. G. incomptus, n. sp.* This species so closely resembles melanothrix in form, size and color that it is unnecessary to add any description. It differs only in the characters given in the short table, so that if the description of melaiiothrix be repeated with those changes only, it will equally apply to this one. Occurs from San Francisco to Vancouver. ARAGNOMUS n. g. Rostrum shorter than the head, broader than long, flattened above, a feeble transverse impression at base, tip feebly emarginate and with a smooth crescentic space limited behind by a curved line. Scrobes sub- lateral, not convergent above, cavernous, nearly attaining the ej^es. An- tenmie scaly, moderate ; scape slightl}^ arcuate, barelj^ attaining tlie margin of tlie thorax ; fiinicle 7-jointed, nearly one-tliird longer than the scape, first joint nearly equal to the two following, joints 2-7 obconical, gradually decreasing in length ; club oval. Eyes rather small, round, not prominent. Thorax cylindrical, sides feebly arcuate at middle only. Scutellum invisi- ble. Elytra oval. Intercoxal process broad, truncate. Second segment of abdomen as long as the two following, separated from the first by an arcuate suture. Anterior tibiai feebly mucronate. Claws connate. This insect recalls in smaller size Pavaptochus sellatus with less broad elytra. The eyes are more distant from the tlioracic margin than is seen in any of the other genera of the group, and the head and rostrum rather large when compared with the thorax. From Seidlitz's table tliis genus appears to occupy a doubtful position. The frontal impression is sufficiently distinct to ally it to Sciobius, etc., but the structui'e of the abdomen will not warrant such position. The scrobes are moreover in such position that it is impossible to say whether they should be called superior or lateral. The}' are by no means lateral in the manner of TniGhypMoius-AniX Licheno- phagus. A. grisevis, n. sp. Form oval, robust, surface densely covered with cinereous scales, with sparsely placed, erect, black setae, longer on the elytra. Head and ros- trum longer than the thorax, a slight frontal line, surface sparsely and deeply punctured, densely scaly, and with short erect hairs. Thorax slightly broader than long, cylindrical, truncate at apex and base, sides suddenly arcuate at middle, disc moderately convex, coarsely and regularly * No description of tliis species has until now appeared. I adopt tlie specific name by whicli it is known in our cabinets. Mention of the species first occurs in a catalogue of insects collected on the survej' of the Pacif. li. R, where it is called Trachyplccus, See Pacif. R. R. Rep., App. 1, p. 21. Horn.] OTIORIIYNCIIINI. 73 punctured, densely scalj', a broad median stripe fuscous, sides cinereous, sparsely setose. Elytra oval, moderately convex, striate, striye witli rather fine, closely placed punctures, intervals flat ; surface densely covered with cinereous scales, darker on the disc and with a transverse very sinuous line at the declivity, and with erect black setse in regular rows on the in- tervals. Body beneath densely scaly. Legs densely scaly and sparsely setose. Length .M inch ; 3.5 mm. The surface color when deprived of scales is brownish testaceous. One specimen California, no special loc.ility known. DYSTICHEUS u. g. Rostrum as long as the head, robust, cylindrical, slightly flattened, A'ery slightly arcuately narrowed from base to tip ; tip slightly emarginate with smooth crescentic space limited behind by a ridge, upper side moderately deeply sulcate, groove slightly wider toward the tip. Scrobes superior very feebly convergent above, broadly open in their entire length (the sides very widely divergent behind), very shallow posteriorly, not attaining the eyes. Eyes moderate, coarsely granulated and surrounded by a fine groove. Antenna? moderately long, scape slightly arcuate and passing the anterior margin of the thorax ; fanicle 7-jointed, one-third longer than the scape, first joint longest, the others elongate obconical, gradually de- creasing in length ; club elongate, oval, acute. Thorax cylindrical, sides moderately arcuate. Scutellum invisible. Elytra regularly oval. Metasternum short, side pieces narrow. Intercoxal pi'ocess of abdomen broad, truncate. Second segment of abdomen nearly as long as the two following, separated fi'om the first by an arcuate suture. Anterior and middle tibiae with very short mucro, tips of hind tibioe scalj'. Claws con- nate. Body scaly and hispid. The scrobes in their entire extent are more open' than in any genus known in the group. The eyes are less distinctly surrounded by a groove than the following genera. I can find no foreign genus resembling it. D. insig-nis, n. sp. Form oval. Head and rostrum as long as the thorax, coarsely and deeply punctured, and rugulose, and sparsely scaly and with short erect setse, except in the median groove which is nearly smooth and extends to the base of the rostrum. Thorax cylindrical, slightly narrower in front, broader than long, apex and base truncate, sides moderately arcuate, disc moderately convex, coarsely, denselj^ andxleepl}^ punctured, sparsely scaly and with very short setse. Elytra regularly oval, sides feebly arcuate, striate, strife with coarse, quadrate, closely placed punctures, intervals flat, densely covered with cinereous scales of elongate form, with darker patches irregularly intermixed, and two irregular rows of scale-like, short, erect setse. Body beneath piceous, coarsely and densely punctured, abdo- men smooth, sparsely punctui-ed, sparsely scaly and pubescent. Legs piceous, sparsely scaly. Length .16 inch ; 4 mm. One specimen collected in the southern portion of California. PROC. AMER. PHILOS. SOC. XV. 96. J 74 OTIORHYN^CHID^. [Horn. EUCYLLXJS n. Rostrum not longer than the head, robust, slightly narrowed in front, alse not divergent, tip emarginate and with a very narrow smooth space. Scrobes lateral, moderately deep, feebly arcuate, passing directly back- wards and attaining the eyes. Antennae long, scaly; scape arcuate and slightly twisted, passing slightly the anterior margin of the thorax ; funicle 7-jointed, slightly longer than the scape ; joints 1-2 long, the second longer than the first, third slightly shorter than the first, 4-7 obconical, gradually shorter, club rather small, oval. Thorax cylindrical, sides moderately arcuate. Scutellum invisible. Elytra oblong oval. Intercoxal process broad, truncate, second segment not as -long as the two following, separated from the first by an arcuate suture. Tips of hind tibiiie scaly, anterior and middle tibise mucronate. Claws connate. Body scaly and hispid. This genus would be placed by Seidlitz' table near Trachyphlccus. E. vag-ans, n. sp. Elongate oval, densely scaly and with greyish setiform hairs. Head and rostrum nearly as long as the thorax, densely covered with cinereous and pale-brownish scales intermixed, and with short erect hairs sparsely placed, surface sparsely punctured. Thorax cylindrical, truncate at apex and base, slightly wider than long, sides moderately arcuate, disc moderately convex, sparsely punctured, densely scaly and sparsely hairy. Elytra elongate oval, twice as long as wide, moderatelj' convex, finely striate, striiB witli rather fine punctures not closely placed ; intervals flat, densely scaly and witli a row of moderately long erect hairs on each interval. Body beneath densely scaly, and with very short sette sparsely placed. Legs densely scaly, scales cinereous, femora with a darker ring near the tip. Length .20-. 28 inch ; 5-7 mm. The scales covering the body vary in color from cinereous to oclireous ; on the thorax is a broad median stripe of darker color, and the elytra have short brownish lines on the discal space, occupying alternate intervals. Occurs in Arizona and parts of California adjacent. THINOXENUS n. g. Rostrum not longer than the head, robust, not narrower in front, above flat, tip feebly emarginate. Scrobes lateral, rather broadly open and with divergent sides, posteriorly very shallow and not attaining the eyes. An- tennis moderate, sub-terminal, scaly ; scape very feebly arcuate, attaining the thoracic margin ; funicle 7-joiuted, slightly longer than the scape, joints 1-2 longer, the first longer than the second, joints 3-7 obconical ; club small, elongate oval. Eyes small, round, not prominent. Thorax oval, slightly broader than long, truncate at apex and base. Scutellum in- distinct. Elytra regularly oval. Intercoxal process broad, truncate ; second segment not longer than the two following, separated from the first by an arcuate suture. Hind tibiie scaly at tip, anterior and middle tibiae indistinctly mucronate. Claws connate. This genus is closely allied to the preceding, and has similar affinities ; Horn.] OTIOEHYNCHrt^I. 75 differs in the form of the scape and the structure of the funicle. The scrobes are shorter and rather widely open and shallow posteriori}', and for a very short distance converge slightly above. T. squalens, n. sp {TrdcJiypldceus squalens Lee. niss., see note under Geod. incoinptas). Form oval, densely clothed with brownish scales and with short black setiB. Head and rostrum slightly longer tlian the thorax, densely scaly, sparsely punctured and setose. Thorax one-fourth broader than long, apex truncate, base feebly arcuate, sides rather strongly arcuate, disc moderately convex, densely scaly, sparsely punctured and setose. Elytra one and a half times as long as wide, regularly oval, disc moderately convex, indis- tinctly striate, striae not closely punctured, intervals flat, densely scaly, each with two rows of short setae. Body beneath and legs densely scaly sparsely setose. Length .18 inch ; 4.5 mm. Similar in form to Eu. vagaiis but less elongate. In addition to the scales, the surface is covered with an exudation which almost entirely obliterates the appearance of the scales. Not rare near the sea coast of California. RHYPODES n. g. Rostrum short, as broad as long, sub-quadrangular, flattened above, tip slightly emarginate. Scrobes lateral, moderately deep, very feebly arcuate and passing directly to the eyes. Antenme moderate, sub-terminal, scaly; scape feebly arcuate, attaining the margin of the thorax ; funicle 7-jointed, shorter than the scape, joints 1-2 longer, the first longer than- the second; joints 3-7 obconical, short ; club oval, acuminate. Eyes small, round, deeply inserted, scarcely visible from above, and coarsely granulated. Thorax transversely oval. Scutellum invisible. Elytra regularly oval, humeri oblique. Intercoxal process broad, truncate. Tibiae not mucro- nate, the posterior scaly at tip. Claws connate at base, divergent at tip, especially the anterior. Body densely scaly and with erect scales. The form of the species of this genus is exactly that of TracJiyjiJtlceus. It differs from the preceding genus in the form of the scrobes, and from Eueyllm by its shorter form, and the structure of the antenna;. The Qjes are so feebly prominent and the orbital groove so well defined, that the eyes are scarcely at all visible from above. Rh. dilatatus, n. sp (Trachi/phla'us id: Lee. mss. See note under Geod. ineomptu^). Form of Trachi/pJilaus, densely covered with brownish scales with paler spots and with erect scales sparsely placed. Head and rostrum slightly longer than the thorax, densely scaly, sparsely punctured and with erect scales. Thorax nearl}' twice as wide as long, truncate at apex, base feebly, sides strongly arcuate, disc moderately convex, covered with brownish scales, variegated with paler, and with erect, short, clavate scales, sparsely placed, surface sparsely punctured. Elytra regularly oval, 76 OTIOEHYNCHIDJE. rHorn. finely striate, strise not closely punctured, intervals flat, densely covered with brown and paler scales intermixed, each interval with two rows of not closely placed clavate scales. Body beneath and legs densely covered with brownish scales, the legs with semi-erect broad, paler scales. Length .14 inch ; 3.5 mm. Occurs near the sea coast at San Diego, Cal. Rh. brevicollis, n. sp. Form oval, robust, densely covered with dark cinereous scales, and with erect scales sparsely placed. Head and rostrum as long as the thorax, densely scaly, with sparsely placed erect scales, and sparsely punctured. Thorax more than twice as wide as long, apex truncate, base feebly, sides strongly arcuate, disc moderately convex, sparsely punctured, densely scaly, a broad msdian space brownish, sides cinei'eous. Elytra broadly oval, scarcely longer than wide, sides broadly arcuate, disc moderately convex, finely striate, striae finely punctured, intervals flat, densely covered with dark cinereous scales, each interval with a row of erect clavate scales. Body beneath more sparsely scaly than above. Length .10 inch ; 2.5 mm. This species is much shorter and more robust than the preceding, the scaly vestiture is paler, and the body beneath less densely covered. The surface color when deprived of scales is pale castaneous. One specimen from Colorado. Group IV. TBA€HYPHL. beak and head strongly not densely punctured; prothorax punctured towards the middle, coarsely granose at the sides, with a narrow sometimes indistinct dorsal line; elytra rugose and punctulate, with rows of larger punctures in which are scat- tered pale scales; beneath with small scattered patches of ochreous scales. Length 12 — 14 mm.; .45 — .6 inch. California: Dr. Horn and Mr. Ci-otch. The patches of scales beneath are on the prosternum in front of the coxae; the outer angle of the metas- ternuni, and at the sides of the ventral sutures. This singular insect has some resemblance in appearance to Molytes, but is moi'e slender, and the characters totally unlike. The elytra are more strongly declivous behind than in the other genera, being in fact perpendicular towards the tip. PLINTHODES n. g. Beak as in Triglyphus, except that the apical wings are a little wider, and the lateral grooves not so deep, there is also a vague groove between the medial and lateral grooves. Antennae with the second joint of the funicle longer than the first, and together equal to the four followingunited: three to seven equal, the seventh a little wider, club oval pointed, as long as the three preceding. Prothorax not narrowed behind, rounded and narrowed on the sides in front, postocular lobes broad, feeble; transversely impressed beneath, and at the sides near the tip. Elytra oblong-oval, wider in 9 than in (^, nearly truncate at base, slightly impressed on the sides behind the humeri, which are rounded but distinct, tip gradually declivous (but not perpendicular); very densely scabrous, with rows of large deep punctures; pubescence fine, sparse, with small scattered narrow pale scales, and two small spots on each elytron; scutellum clothed with ochreous scale-like hairs. Legs as in Triglyphus. The beak is very densely punctured; the prothorax the same, mixed with granules at the sides; the under surface is pubescent, densely but not M8 CURCULIONID^. [LeConte. seabrons punctured. The general aspect is that of certain Hylobius. The last ventral segment in both sexes is broadly channeled, and with a shallow impression each side; faint traces of similar impressions may be seen in Triglyphus. The only species known to me is P. taeniatus Lee, Pac. Rw. Expl. and Surv. Insects, 55, {Hylobius?) Brownish black, thinly clothed with fine brown pubescence, opaque, dtensely scabrous punctured; thorax granose at the sides, feebly channeled, elytra with rows of deep oblong punctures, scutelluni, two small spots on tjie fifth interspace, and a small sub-humeral spot pale yellow. Length 13 mm.; .55 inch. Oregon and Vancouver Island. ACMJEO-ENIUS n. g. The beak is rather shorter and stouter than in the preceding genera, flat above, with a medial channel; the lateral grooves are represented by a sl^ort impression, and immediately below is a shorter one, the two together occupying the triangular space in front of the eyes; theantennal grooves are very strong and deep, the apical wings moderate; the tip is emarginate Imt the angulated line is replaced by a broad curved impression. The antennae are stouter, first and second joints of the funiculus equal, each nearly twice as long as the following, which are equal and about as long as wide, with long bristles, seventh wider, club oval ])ointed. Pi-othorax wider than long, narrowed in front but not behind, very densely punctured not granose, impressed beneath as usual ; postocular lebes feeble. Elytra not much Avider than the prothorax, elongate oval, strongly declivous behind, humeri not distinct; densely punctured, thinly clothed with mixed scales and hairs, with rows of deep oblong punctures. Legs as in the preceding genera, except that all the tibise are more expanded at the tip, and the tarsi, instead of being brush-like beneath, are concave and thinly clothed with long bristles. A. hylobinus, n. sp. Dull black, with a brown tinge, produced by thinly dispersed hairs and small scales; head and prothorax very densely coarsely punctured, elytra more finely punctured, with rows of large oblong punctures: beneath, and legs densely punctured. Length 11 mm.; .43 inch. Oregon, two specimens; the last ventral is obsoletely impressed along the median line. TRIOHALOPHUS n. g. This genus contains several species resembling the European Alophus, but of larger size, with the rows of elytral punctures almost or quite oblit- erated ; the upper surface is clothed with hairs, not at all squamose, and becoming so only on the sides of the sternal pieces; there is one lateral groove on the beak, and the medial groove is stronger than in Alophus; LeConte.] ALOPIIID^. 119 the second joint of the funiculus is a little longer than the first, as in Alophus, and in all other respects it agrees with that genus,* The head and prothorax are densely punctured, the latter usually channeled and carinate,, the anterior transverse impression strong, sometimes extending on the dor- sal surface; the elytra are densely but more finely punctured; the tarsi are broad and scopiferous as usual. The species may be thus distinguished : Pronotum strongly transversely impressed near the tip; dorsal channel strong in front, carinate behind: Pronotum less coarsely punctured 1. didymus. Pronotum more coarsely punctured 2. constrictus. Pronotum scarcely impressed near the tip: Lateral groove of rostrum distinct; pronotum carinate about the middle : Elytral strife nearl}' obliterated 3. alternatus. Elytral striae distinct 4. seriatus. Lateral groove of rostrum triangular feeble; pronotum neither channeled nor carinate; elytral striae wanting 5. simplex. The bibliography and localities as follows: 1. T. didymus (Lee), Proc. Ac. Nat. Sc. Phila. vii., 20, {Alophus;) Pacific R. W. Expl. and Surv. Insects, p. 54. Oregon. 3. T. constrictus (Lee), ibid. {Alophus); ibid.j; A.alteniahtsX'^l-Ann., Bull. Mosc. 1843, 290; ib. 1853, 244. Alaska and Washington Territory. This is very similar to the preceding and may with larger series of specimens prove only a race thereof. The prothorax, however, seems more coarsely punctured, and consequently sub- serrate at the sides. 3. T. alternatus. Hypsonotus altern. Say, Cure, 10; ed. Lee. i., 271 ; Alophus altern. Boh., Schonk. Cure, ii., 28G. Lake Superior. 4. T. seriatus (Mann.), Bull. Mosc. 1853, 245, {Alophus). Alaska. 5. T. simplex, n. sp. Brownish black, clothed with pale brown prostrate pubescence ; head, beak and prothorax densely not coarsely punctured, the latter with a stripe of denser pubescence each side, elytra more finely densely punctured. Length, 8.5 mm.; .32 inch. Manitoba and Hudson Bay Territory. Smaller than the other species, and easily known by the lateral groove of the beak being shorter, broader, triangular and feebly impressed. The outer two striae of the elytra are distinct, the others obliterated; the pubescence becomes squamiform on the sides of the prothorax beneath, and on the side pieces of the meso- and metasternum, as in the other species of the genus. *In Alophus the lateral groove is wanting. 120 CURCULIONID.15. [LeConte. LOPHALOPHUS u. g. In this genus the beak is parallel, flat above, not as stout as in the other genera, and the apical wings are not developed; the medial groove is re- pliiced by a fine carina, and the lateral grooves are wanting ; the antenna! grooves are short, oblique as usual, but becoming wide and obliterated be- hind; the grooves on the under surface are obsolete. The antennte are as in Alophus, but rather thicker; the second joint of the funiculus, as usual, a little longer than the first. The eyes are scarcely ti'ansverse, but dis- tinctly angulated below; the postocular lobes are obsolete, and the pro- sternal transverse impression scarcely extends on the sides. The elytra and head are finely punctured, and the former has distinct rows of larger punc- tures; the prothorax is coarsely and densely punctured, not channeled, but with a small, dorsal smooth space. Under surface pubescent. The only species known to me is L. inquinatus. Liophloeus inq. Mann., Bull. Mosc. 1852, 351. Alaska ; two specimens from Baron Chaudoir. Difters from Liophlmus by the mandibles being without apical scar, by the maxillae not covered by the mentum, and by the ungues being separate, not connate at base. Length 5.5 mm.; .32 inch. L]3PIDOPHORUS Kirby. This genus is easily distinguished from the others of the sub-family by the beak being a little broader at the tip, with feeble wings, somewhat as in Alophxii; otherwise, it is cylindrical, and not carinate nor grooved; the an- tennal grooves are broad and short, directed towards the eyes, which are scared}' transverse, and distinctly angulated below. The scape of the an- tenna? is longer than in the other genera, extending across the eyes; the first joint of tlie funiculus is as long as the three following united; 2-7 equal in length, gradually a little thicker; club oval, pointed. Prothorax not lobed in front, only obsoletely impressed at the sides near the tip; rounded on the sides in front, not narrowed behind, scarcely as wide as long. Elytra elongate oval, humeri rounded: strioe well marked, interspaces flat. Front and middle tibie slightly curved and mucronate at tip; the hind pair scarcely mucronate, truncate at tip. 1. L. linsaticollis Kirby, Faun. Bor. Am. iv. 201 ; Schon. Cure, vi, 2d, 256; Maun. Bull. Mosc. 1853, 243. Two specimens from Alaska, not very well preserved. The body is densely clothed with scales and small bristles; the latter arranged in series on the elytra. Length 4.5 mm.; .18 inch. This is perhaps Phytonoinu'i trioittatus Say, Cure. p. 12; ed. Lee. i, 273; but the description is not very definite. Sub Family IIL ITHYCERIDJE. This sub-family is represented by a single species, and is well dis- tinguished from all other Curculionidde by the following assemblage of characters. LeConte.] ITHYCEKID^. 121 Mandibles prominent, not very stout, emarginate at tip, Avltli an in- ferior cusp; mentum large, quadrate, supported on a broad and short gular peduncle; ligula and labial pali)i small. Beak short, rather broad, one-half longer than the head, antennal grooves wanting ; eyes small, rounded, convex. Antennae not at all geniculate. First joint scarcely longer than the second ; third longer than the second ; 4-8 gradually a little shorter and broader; club small, oval pointed, annulated. Side pieces of mesosternum diagonally divided ; epimera not attaining the prothorax ; those of metasternum moderately Avide, slightly dilated in front. Ventral segments nearly equal in length; sutures straight, well- marked. Front coxiB contiguous, middle coxse narrowly separated ; hind coxjB transverse, narrow, attaining the side margin. Legs moderate in length, slender, tibiae truncate at tip, with two small termi- nal spurs; articular surface terminal, well-defined. Tarsi broad, spongy, pubescent beneath; third joint dee[il3' bilobcd; claws divergent, armed at the middle with a small acute tooth. Inner surface of elytra with the usual fold, commencing near the posthu- meral sinuosity, running parallel to the margin as far back as the beginning of the apical curvature; apical region very finely scabrous, with a narrow marginal band of very fine golden pubescence. In this sub-family th© Curculionid* make the nearest approach to the Rhynchitidae. ITHYOERUS Sch. 1. I. noveboracsnsis (Forster), Nov. Spec. Ins. 35, (Gurculio); (Oliv.) Enc. Meth. v, 553; (Gmelin), Syst. Nat. 1798; Horn, Proc. Am. Phil. Soc. 1872, 447; Rhynchiies ctircuUonoideK Herbsl, Kafer, vii, 136; pi. 105, f. 1; IthyceruH cure. Gyll., Sch. Cure, i, 246; Cure, punetahilus Fabr., Ent. Syst. i, 187; Oliv., 83, 402, pi. 10, f. 119; Enc. Meth. v, 5'Sd; Paehyrhynchus Schon- lierri Kirby, Faun. Bor. Am. iv, 271. Canada to Texas; sometimes quite injurious to fruit trees by gnawing oft tlie tender buds, as is observed by C. V. Riley (Third Report Ins. Inj. Missouri, p. 57). The anal segment of the (^, is very convex and protu- berant, so as to be visible from beneath, simulating a ventral segment. We owe the first accurate observation and explanation of this fact to Dr. Horn. The pygidium is deeply grooved in both sexes, and projects beyond the elytra. Sub Family IV. CUliCLTLIOXID^ (genuini). The species of this sub-family may be recognized by the mandibles being rarely emarginate at tip, but either bi-emarginate, with three apical cusps, or oblique, with three cusps on the inner side, which sometimes become effaced, or obsolete. In the first tribes the inferior cusp is also smaller, and less prominent, but it speedily becomes more developed, and it is b ,- the final dominance of that cusp, with the edge of the luandible which corres- ponds to it, that the oblique form with the teeth on the inner edga, is as- sumed; and a still greater prominence of this inferior edge and cusp results in the oblique or flattened form of mandible seen in certain Cryijtorhyn- PROC. AMER. PHILOS. SOC. XV. 96. P 122 CURCULIONID^. I LeConte. chini and Barini. From them the transition is easy to the next sub-family Balaninida; in wliich the mandibles are still more depressed, and the con- dyle instead of being on the outer aide comes to the upper surface, so that the movement is vertical, instead of horizontal as in all other Coleoptera. It must also be observed that in cei'tain Phytonomini the interior cusp becomes very small or obsolete, so that the mandibles seem to be only emarginate at tip. They thus approach the two preceding sub-families, but are readily known by not possessing tlie peculiar characters which dis- tinguish each of them. The beak is not short and flat, and the eyes are not round, as in Sitonidse; the gular margin is not prominent as in Alophi- dfe; and the antennae are not straight, nor the elaws appendiculate as in Ithyceridffi. After eliminating the tj-pes which seem of sufficient importance to be re- garded as h iving family or sub-family value, there still remains this vast complex, which presents no difficulty in circumscription. It nevertheless comprehends so many diversified combinations and representations of a few simple characters, and under each so many variations in a few definite directions, that much labor, and very careful observation is necessary to devise a scheme which will enable the genera to be naturally grouped, and easily recognized. I believe that the following table will be found sufficient for the proper elucidation of our limited fauna, and perhaps with a certain amount of ex- pansion and modification, may serve as a basis for a general arrangement of the sub-family. Fnmt coxaj contiguous [exceptinPmotZes (p. 142), Phycocates (p. 189), and Miarus (p. 221)] 2. Front coxae distant [except in Notolomua (p. 222), and Conotrachelus (p. 225)] 14. 3. Ungues simple; pygidium not exposed 3. " appendiculate, toothed or cleft, [except in some Magdalis (p. 192), and Cionini (p 219)] 9. 3. Eyes not contiguous beneath. 4. " contiguous beneath, (p. 320) HORMOPlNI. 4. Mandibles biemarginate, and 3-toothed at tip 5. " usually emarginate, 2-toothed at tip, ai-ticular surface of at least the hind tibiae termi- nal (p. 123) PHYTONO.tllXI. 5. Tibiae fossorial (p. 137) E.^lPHYASTlNi. " not fossorial 6. 6. Side pieces of metathorax distinct 7. " indistinct (p. 190) TRA€HODIM. 7. Lateral angles of first ventral segment not visible.. 8. " " uncovered (p. 144).. ci^EOKl^l. 7. Mentuni transverse, labial palpi large (p. 137) hyi0€EPHAI.ini. 11. Hind angles of prothorax acute (p. 193) MAliUAl^IIVl. " " " " rectangular or rounded (p. 193) ANTHONOKINI. 12. Funicle six or seven-jointed 13. " five -jointed (p. 219) €loNlNl. 13. Scape extending upon the eyes (p. 210) ]*R10^^0MKRi:9ri. " not extending upon the eyes (p. 211). TYCmiBri. 14. Ventral sutures more or less curved 14. entirely straight (p. 233).... l,^MOSAC€lliri. 15. Humeri of elytra truncated by side pieces of mesothorax (p. 284)., barini. Humeri not truncated 16. 16. Beak received in or upon the breast 17. Beak not received in or upon the breast; prosternum very long in front of the coxae, which are nearly contiguous (p. 221) ]>£R£l.OMlIiri. 17. Eyes more or less covei'ed in repose, except in the group PhytoMi (p. 280) 18. Eyes not covered 19. 18. Body oval, pygidium covered (p. 223) CRYPTORHYKOllilifi. " broad, pygidium exposed (p. 267) CEnoRHYNeillliri. 19. Antennae geniculate, eyes very large (p. 259) ZWOI'INI. " straight (p. 265) TACUYOOBTINI. Tiibe I. PHYTONOMINI. Among the tribes in which the ungues are simple and separate, and the pygidium not exposed, the present one may be distinguished by the form of the mandibles, and by the hind tibiae being truncate at tip, with the ar- ticular surface terminal, and though so^newhat oblique, not lateral as in Hylobiini. It follows from this that the terminal spine representing the spur is situated on the inner side of the apical surface. The mentum is oblong, and supported on a guiar peduncle which is not longer than wide, and emarginate. The ligula and labial palpi are less de- veloped than in Hylobiini; the maxilla? are entirely exposed. The mandi- bles are short, very stout, pincer-shaped, emarginate at tip, (except in Phy- tonomus opimus) convex and sparsely sculptured on the outer surface, the basal condyle large. Antennae inserted near the tip of the beak, geni- culate; scape long, club elongate-oval, pointed, annulated, covered with sensitive surface; funiculus 7-jointed; the seventh joint in some species con- nected with the club. Beak moderately long, not slender, antennal grooves extending nearly to the tip, deep, directed towards the lower part of the eyes, which are more or less transverse and narrowed beneath. Front coxae round; contiguous; middle coxae round, narrowly separated, entirely en 124 CURCULIONID^. [IjeConte. closed by tlie meso- and metasternum. Side pieces of mesosternum diagon- ally divided; of the metasternum, narrow dilated in front, the outer angle making a sinuosity in the side margin of the elytra. Ventral segments unequal; first and second longer; third and fourth shorter; fifth as long as the two preceding united; sutures straight; the lateral angles of the first segment are covered by the elytra, and the intercoxal process is broad. The proportions of the ventral segments permit the recognition of two groups. A. Ventral segments not very unequal; postocular lobes of prothorax obsolete Phytouomi. Articular surface of hind tibia3 well-defined, ter- minal PHYTONOMUS. Articular surface of hind tibise ill-defined, oblique... LEPYRUS. B. Ventral segments very unequal; third and fourth short, united equal to one of the others l.lstro Georgia. Length 9.7 mm. ; .38 inch. The posterior callus of the elytra is oblong, moderately prominent, but not a conical tuberosity as in the three preceding species, since it gi'aduates imperceptibly into the fifth interspace. The 9 mentioned by Boheman in the last citation belongs to this species, the supposed (^ with caudate elytra is a 9 variety of L. inmqualipennis. 5. L. callosus, n. sp. Blackish, densely clothed, as in the other species, with small rounded scales, becoming larger on the prothorax, and hair-like upon the head. LeConte.] phyto:n^omi^i. 131 they are dirt colored on the general surface of the body, but pale at the sides of the prothorax and elytra, and on a narrow dorsal vitta of the for- mer. Beak as long as the prothorax, distinctly carinate and silicate, pro- thorax scarcely as wide as long, broadly rounded on the sides, gradually narrowed in fi'ont of the middle, marked as usual with scattered black dots. Scutellum pale. Elytra strongly emarginate at base, humeri oblique; striai strongly punctured, interspaces wide, somewhat convex; posterior callus rather prominent, oblong, fading in front into the fifth and adjoining inter- spaces. Beneath dirty brown speckled with black punctures. Length 9- 10.5 mm. ; .35-43 inch. (^. Last ventral segment not impressed, anal segment very slightly visi- ble behind the last ventral. 9 . First and second ventrals with a broad shallow impression, last ven- tral with a deep round excavation extending from the base to the tip ; pygidium semi-circularly emarginate at tip ; elytra separately subacumi- nate at tip. New York to Georgia. The posterior callus of the elytra is about as prominent as in L. squamiger, but not so narrow. 6. Li. inaequalipennis (Boh.), Sch. Cure, vi, 189, (Listroderes). (^. Ventral segments first and second broadly concave at the middle, fifth not impressed, anal segment convex and protuberant behind the last ventral ; elytra conjointly rounded at tip. 9- Last ventral with two strongly elevated folds at tip, converging an- teriorly but not meeting, leaving between them a deep excavation ; pygid- ium somewhat pointed at tip ; elytra separately pi'olonged at tip into a long straight pointed process. Middle and Southern States. Closely allied to the next, but easily dis- tinguished by the sexual characters and by the elytra being but slightly emarginate at base, with rounded humeri, as in L. squamiger. Length 7- 11 mm. ; .275-. 43 inch. 7. L. caudatus (Say), Jour. Ac. Nat. Sc. Phila. iii, 311 ; ed. Lee. ii, 174, {Bliynchmnus); Gyll., Sch. Cure, ii, 278 {Listroderes). (^. Last ventral segment not impressed, anal segment slightly visible behind the last ventral, elytra rounded at tip. 9 • Last ventral broadly but feebly concave towards the tip ; pygidium not pointed at tip ; elytra separately prolonged into apical processes which converge at tip. Western States. 8. L. americanus, n. sp. Blackish, covered with round dirty -brown scales, becoming larger on the prothorax, less dense and hair-like upon the head and beak. Beak as long as the prothorax, strongly carinate and sulcate. Prothorax scarcely as long as wide, rounded on the sides, narrowed before the middle, constricted to- wards the tip ; marked with two sinuous lateral vittsE, and a scarcely dis- tinct dorsal line of pale scales. The punctures are less concealed by scales 132 cuRCULioisriD^. [LeOonte. than in the species above described, and are very coarse and dense. Scutel- lum pale. Elytra strongly emarginate at base, humeri oblique, sides then parallel, rounded behind ; the posterior callus is distinct, not very promi- nent ; the elytra are compressed at the suture towards the tip, and verti- cally declivous ; the striae are stronglj^ punctured, the interspaces somewhat uneven; there is an indistinct broad stripe commencing at the humeri and running backwards on the sixth, seventh, and eighth interspaces, and there are besides some irregular mottlings of pale scales. Beneath punctured, irregularly spotted with large pale scales ; thighs with a pale band. Length 14 mm. ; .55 inch. 9 . Last ventral deeply concave, the excavation smooth at the bottom, and transversely impressed with a short line, becoming narrow at the tip, which is deeply emarginate ; the upper marginal line is continued around the tip, separate from the lower one, and the space between them is curi- ously and deeply marked with two excavations on each side near the extreme emargination ; pygidium stronglj'' emarginate ; tips of the elytra separately rounded. (^ wanting. Georgia, three specimens. I have seen nothing similar to the curious sculpture of the last ventral segment, though in its homology it is only a modification and complication of the forms mentioned under other species. It is the Eudocimus americanus\ Dej. Cat. 299, but bears no resemblance to Eu. Mannerheimii. 9. L. rotundicollis, n. ap. Blackish, covered with the usual scales, of a dirty-brown ; beak feebly carinate, lateral grooves almost obsolete ; frontal fovea distinct. Prothorax as wide as long, sides strongly rounded, clothed with paler scales ; surface coarsely and densely punctured ; an indistinct paler dorsal stripe may also be traced. Elytra with deep punctured strise, and convex interspaces ; posterior callus obsolete. Length 7.5 mm. ; .30 inch. 9. Last ventral with a large shallow rounded impression ; elytra con- jointly rounded at tip. (^ wanting. One 9 ; Greorgia. Quite distinct by the more rounded prothorax. The funiculus of the antennae is as slender as in an,y of the preceding species ; the sette of the elytra are rather more conspicuous. 10. L. appendiculatus (Boh.), Sch. Cure, vi, 2d, 192, (Listroderes). (^. Elytra conjointly rounded at tip. 9 . Elytra separately produced into a short straight process. Canada to Texas. More elongate than any other species in which the beak is flattened and subcarinate. Length 4.2-6.5 mm. ; .16-.25 inch. 11. L. sulcirostris, n. sp. Elongate, black, less densely covered with small, rounded, dirty brown scales, no larger on the prothorax. Beak stouter than usual, with the ridges and grooves so strongly marked as to appear tricai'inate and quadrisulcate. Prothorax longer than wide, sides nearly straight for two thirds the length, then gently rounded to the apex ; punctures dense, unequal, the larger ones LeConte.] phyto;n^omini. 133 more distant. Elytra broadly emarginate at base, one-fourth wider than the prothorax, humeri rounded; strife strongly punctured, interspaces slightly convex, conjointly rounded at tip in both sexes. Length 8 mm. ; .32 inch. (^. Last ventral not impressed. 9. " " with a broad, shallow impression. One pair of partially abraded specimens : Georgia. Easily known by the stouter and more deeply sculptured beak, and stouter antennae; otherwise it resembles L. nebulosus in form. 12. L. nebulosus, n. sp. Elongate, blackish, clothed with scales, mottled brown and dark, on the head with a metallic lustre. Beak feebly carinate and sulcate as usual. Prothorax longer than wide, sides feebly rounded for two-thirds the length, then more rounded to the tip ; scales small, a bifurcated lateral vitta, and an interrupted dorsal line paler ; punctures dense and deep. Elytra about one-fourth wider than the prothorax, strongly emarginate at base, humeri oblique, slightly rounded ; strias strongly punctured, interspaces wide and flat. Thighs with a pale band. Length 9.5 mm. ; .375 inch. 9 . Last ventral slightly impressed ; elytra conjointly rounded at tip. One 9. Missouri. Easily recognized by the elongate form and mottled color. 13. L. frontalis, n. sp. Blackish, less elongated, covered with rounded scales, which are no larger on the prothorax; these scales are dirty brown on the elytra, and Avith a metallic lustre on the head and prothorax. Beak finely carinate, lateral grooves almost obsolete, frontal fovea deep. Prothorax very little longer than wide, broadly rounded on the sides, transversely impressed near the tip; lateral stripes and dorsal line indistinctly ]3aler, punctures dense, of two sizes, the larger more distant. Elytra one-third wider than the prothorax, broadly emarginate at base, humeri rounded; striae strongly punctured, interspaces wide, nearly flat; tip conjointly rounded in both sexes. Length 5.7-10 mm.; .23-. 40 inch. (^. Last ventral not impressed; anal segment slightly pronunent. 9 . Last ventral with three shallow impressions. Michigan, New York, Georgia, Texas, Stouter than L. nebulosus, and easily recognized by the above characters. The setae of the elytra are more obvious than usual. 14. L. oregonensis Lee, Pac. R. R. Expl. and Surv. Ent 55. One abraded 9 from Oregon. The last ventral segment is not at all im- pressed. The beak is feebly carinate, and obsoletely sulcate, the frontal fovea not deep. The prothorax is a little wider than long, much rounded on the sides, and feebly channeled, the sculpture is peculiar, consisting of small granules, separated by deep rugosities, and mixed with large, scat- tered punctures; on each granule is a small puncture; the few scales which remain are small, and indicate three paler stripes. The elytra are one-third 134 CUKCULIOISID^. [LeUonte. wider than the prothorax; the humeri are rounded, and the base slightly emarginate; strise strongly punctured, interspaces slightly convex. Length 6 mm.; .23 inch. 15. L. latiusculus (Boh.), Sch. Cure. vi. 2d. 199. I refer this name to a species which occurs in the Middle and Southern States, and is by no means rare. The form is less elongate than in L. appendiculatus, and the prothorax is a little wider than long, slightly nar- rowed in front, and feebly rounded on the sides; the punctures, on remo- val of the scales, are large, deep and densely placed; the scales are of the usual dirt color, not conspicuously varied in color, though the prothorax is indistinctly trivittate, and larger upon the prothorax than upon the elytra. Elytra about one-third wider than the protliorax, slightly emarginate at base, humeri appearing rounded when viewed from above, but oblique when viewed from the front; striai strongly punctured, interspaces slightly con- vex; setae short, tip conjointly rounded in both sexes. The last ventral segment is not impressed in 9 • Lengtli 5 — 6 mm. ; .20 — .24 inch. 16. L. cribricollis, n. sp. This species agrees in form, color and sculpture with the preceding, ex- cept that the prothorax is very distinctly wider than long, and more strongly rounded on the sides; it is distinctly constricted near the tip, so that look- ing from above, the postocular lobes appear more prominent. The humeral angles of the elytra are more distinctly oblique. Length 6.7 mm. ; .27 inch. 9 . Last ventral with a large round impression, the bottom of which is shining and nearly smooth. One 9> Georgia. In this as in the preceding species, the beak is but faintly sulcate, and the middle carina is slightly marked; the frontal fovea is small, and feebly impressed. 17. L. impressifrons, n. sp. This species entirely resembles L. latiusculus, in form and sculpture, but the beak is stouter, more distinctly carinate and sulcate, and the frontal fovea is large and deep. The last ventral is not impressed in 9 • Length 5.8 mm.; .23 inch. Two specimens, Georgia and Louisiana. The prothorax is very deeply and coarsely punctured, and the sides are broadly rounded. 18. L. setosus, n. sp. Blackish, covered with a dense crust of dirty gray and brownish round scales, larger upon the prothorax, and not becoming hair-like upon the head. Beak moderately tricarinate and quadrisulcate. Prothorax distinctly wider than long, sides suddenly rounded near the base and apex. Scutel- lum pale. Elytra not much wider than the prothorax, slightly emarginate at base; humeri rounded, striaB punctured, interspaces slightly convex, with rows of clavate bristles longer and more evident than the setse of the other species; tip conjointly rounded in both sexes. r^. Last ventral slightly impressed at the tip. 9 . Last ventral deeply impressed at the tip. LeOonte.J I'HYTONOMTNI. 135 Florida and Georgia: Messrs. Hubbard and Schwarz. Very easily rec- ognized by the scaly head and long clavate bristles. 19. L. punctiger, n. sp. Elongate covered with small round scales of brownish gray and brown mottled, and slightly pearly, not larger on the prothorax, and but little smaller on the head. Beak cylindrical, neither carinate norsulcate; frontal fovea punctiform deep. Prothorax longer than wide, scarcely narrower in front, broadly rounded on the sides, with a wide lateral pale stripe, which is bifurcated in front; the sculpture is concealed by the scales, but as usual a few large scattered punctures are seen. Scutellum pale. Elytra nearly one-half wider than the prothorax, humeri oblique and slightly rounded, base broadly emarginate; striae strongly punctured; interspaces tvide nearly flat, setae quite obvious, but not stouter than usual; tip conjointly rounded. Last ventral segment not impressed. Antennae and legs dai'k brown. Length 5.7 mm. ; .23 inch. Dacota: one specimen. This species and the next are more elongated in form than any others here described, except L. appendtculatus. 20. L. teretirostris Lee. Pac. R. R. Expl. and Surv. Ent. 55. San Francisco, Cal. Precisely similar in form to the preceding, but the beak is a little stouter and very feebly carinate and sulcate; the frontal fovea is punctiform, but not so deep; the scales are of a uniform pale mud color, with slight metallic lustre, and are scarcely mottled with darker. The last ventral segment is impressed at the tip. 21. L. gracilis, n. sp. Precisely similar to L. teretirostris in form, size and color, but the beak is more slender, as in punctiger, and neither carinate nor sulcate; it differs from both by the absence of the frontal fovea. The prothorax is entirely uniform in color, and the elytra slightly mottled towards the tip. Length 5.3 mm.; .21 inch. One specimen, Nevada: E. P. Austin. The last ventral is feebly im- pressed at tip, as in the preceding. 22. L. nevadicus, n. sp. Less elongate, covered densely with dirt colored scales, without lustre. Head covered with smaller scales, beak cylindrical, very feebly carinate and sulcate, frontal fovea wanting. Prothorax not longer than wide, more rounded at the sides, and slightly constricted in front; narrow lateral stripes, and a dorsal Ime of paler scales. Elytra one-third wider than the prothorax, broadly emarginate at base, humeri rounded, stria3 punctured, interspaces wide, nearly flat, setae as in the three preceding species. Last ventral segment impressed at the tip. Length 4 mm. ;. .16 inch. Nevada, E. P. Austin: three specimens. Quite distinct from L. gracilis by the less elongate form and more rounded sides of prothorax. The sculpture of the prothorax is concealed by the scales as usual, so that I cannot compare it as fully as I desire with L. oregonensis, which it resem- bles in form. The latter, however, has the last ventral not impressed (9). and has probably the head clothed with hair-like and not round scales. 136 CUROULIONID^. [LeUonte. I have one specimen of the same, or a very similar species from Texas, sent by Belfrage. The scales are, however, in great part abraded, and although I perceive some differences, I am unwilling to indicate it as distinct. MACROPS Kirby. The smaller species placed by Schonherr in Listroderes were separated by Mr. Jekel as a distinct genus, Hyperodes (Ann. Ent. Fr. 1864, 566), and undoubtedly the separation is a proper one. I find, however, that the two species upon which Mr. Kirby founded his genus Macrops (Fauna Bor. Am. 199), belong to the same set, and that name must therefore have pre- cedence. This genus is easily distinguished from the preceding by the tibiie being stouter and less strongly niucronate at tip, and by the first joint of the funiculus being stouter and as long as the second, except in M. solutus, where it is about two-thirds as long as the second; the seventh joint of the funiculus is wider than the sixth, but is quite distinct in most of the species, though in others it is rather closely connected.* It will be seen that in the characters by which this genus differs from Listronotus it approaches PTiytonomus. The greatest differences will be found, however, in the proportion of the ventral segments, which in the last named genus are not very unequal, while in Macrops the third and fourth are very evidently shorter, and together are not longer than each of the others. The species are closely allied and difficult to distinguish. The descrip- tions of Boheman and Gyllenhal, though minute, are not sufl^cient to enable me to identify their species with reasonable certainty, and I there- fore content myself with giving a list of those named in the books with references, awaiting more abundant material and comparison with the described types for a proper tabulation of the species: 1. M. delumbis (GylL), Sch. Cure, ii., 283. 2. M. lineatulus (Say), Cure, ii; ed. Lee. i, 272; (Boh.), Sch. Cure, vi, 2d, 195. 3. M. sparsus (Say), Cure, ii; ed. Lee. i, 271; (GylL), Sch. Cure, ii, 282; Listr. squalidus Gyll., ibid, ii, 181. 4. M. spurcus (Boh.), Sch. Cure, vi, 2d, 196. 5. M. ininiundus (Boh.), Sch. Cure, vi, 2d. 198. 6. M. humilis (Gyll.), Sch. Cure, ii, 284; M. ■maculicolUs Kirby, Faun. Bor. Am. iv, 200; pi. 8, f. 4. 7. M. porcellus (Say), Cure. 11 ;ed. Lee. i, 271; (Gyll.), Sch. Cure, ii,284. 8. M. vittaticollis Kirby, Faun. Bor. Am. iv, 200. 9. M. solutus (Boh.), Sch. Cure, vi, 2d, 197. * The anal segment of the w^ is usually protuberant; the last ventral is im- pressed in some Q Q , but never very deeply. The form of the beak, the size of the scales, and the length of the setae afford good characters for the recognition of many of the species, of which there are probably fifteen to seventeen in my collection. LeConte.] EMPIIYASTmi. 137 In this species, which is easily known by the denuded transverse black spot, sometimes becoming a band, about the middle of the elytra, the sec- ond joint of tlie funiculus is longer than the first, and the tibiae are more slender and more bent at the tip than in the others, thus establishing a pas- sage to Listronotus. Tribe II. emphyastini. Tliis tribe is evidently closely related to Ilylobiini, and agrees with it in the structure of the mouth, but differs from it, as from all other tribes in our fauna, by the peculiar form of the tibiae, which are fitted for digging. The front tibiae are compressed, slender, sub-sinuate, prolonged beyond the articulation of the tarsus into a broad process, rounded at tip, and con- cave beneath ; the spur is small and straight ; the middle tibi* are roughly tuberculate and setose, with the apical margin repand, dilated on the outer side, and armed with a straight fixed spur at the inner side; the hind tibiae are bent outwards, tuberculate and setose; much thickened towards the tip, with very large and acutely margined corbels. Tarsi sparsely setose beneath, and not spongy; third joint not dilated nor bilobed ; fourth joint moderate in size, claws slender, simple and divergent. The antennae are geniculate ; funiculus 7-jointed; first joint longer ; 2-7 gradually broader, forming a perfoliate stem uniting with the club, whicli is oval, annulated and pubescent. Beak stout, shorter than the prothorax, deeply grooved; antennal grooves extending to the eyes, which are small, nearly round, and coarsely granulated. Prosternum not emarginate beneath; front coxae contiguous, middle ones slightly separated, metasternum short, side pieces narrow, hind coxie rather large, oval, widely separated, extending to the elytral margin. Thighs stout, unarmed. Ventral segments unequal; thii'd and fourth united equal to the second or fifth; sutures straight, the first obliterated at the middle. The above characters are drawn from Emphyastes. The Australian genus Aphela only differs by the legs being less stout ; the tibiae less ex- panded or thickened towards the tip, and by the beak not being grooved. EMPHYASTES Mann. 1. E. fucicola Mann., Bull. Mosc. 1853, ii, 354; Lee, Pac. R. W. Expl. & Surv. Ins. 57, pi. 2, f. 8; Lacordaire, Gen. Col. Atlas, pi. 71, fi. 5. Sea Coast of the Pacific, from Alaska to San Diego; under sea- weed cast up by the waves. The figure of the antenna given by Lacordaire is very incorrect. Tills species varies greatly in size, but I have observed none intermediate between the large and small varieties. Length 4.8-6 mm.; .19-. 24 inch. Tribe III. HYLOBiisri. The mandibles in this tribe have two apical teeth,, of which the lower one is a little shorter ; there is besides a cusp on the inner edge, so that they becomes three-toothed. This normal form is preserved through many PROC. AMEB. PHILOS. SOC. XV. 96. R 138 CURCULIONIDJE. [LeConte. of the following tribes, modified only by the greater development of the inferior edge and cusp, which by assuming more prominence gives finally an oblique form to the mandible. The gular peduncle is longer than wide, a little wider in front, truncate anteriorly; the mentum is transverse, not large, and the palpi are rather more developed than in the following tribes. The beak is rather long, not slender, except in Pissodes, and the antennal grooves do not extend to the tip. Eyes transverse. The antennie are geniculate ; scape long, funiculus 7-jointed, club oval, pointed, annulated, entirely pubescent and sensitive, except in Pissodes, where the first joint is smooth and sub-glabrous. The front coxae are contiguous and the cavities confluent, except in Pissodes, where they are slightly separated. The middle coxiE are not widely separated; the side pieces of metasternum diagonally divided, with the epimera triangular, not attaining largely the base of the prothorax. Side pieces of metasternum narrow, slightly dilated in front. Hind coxae widely separated, attaining the lateral margin, or nearly so. Ventral segments unequal, first, second and fifth longer; sutures straight and deeply impressed, except the first which is finer and sometimes slightly sinuate. Pygidium covered b}^ elj^tra. Legs stout, or strong ; tibite armed Avith a strong hook at tip ; articular face lateral ; terminal edge of hind tibiae double, except in Pissodes; tarsi with third joint dilated, spongy beneath ; claws simple, divergent. The species are of moderate size, never very small, and are sub-cortical in their habits ; they mostly infest coniferous trees. This tribe leads directly to the Erirhinini, from which they differ chiefly by the less delicately organized mouth, and generally stronger and coarser structure, and by the double edge or corbel to the terminal margin of the hind tibia^. This character, common in Otiorhynchidae, now reappears for the last time in the present family. These corbels are very large and wide in Pachylobius, but narrow in the other genera. Mesosternum moderately long 2. " very short Plinthus. 2. Front coxae contiguous 3. " " slightly separated Pissodes. 3. Thighs clavate, strongly toothed 4. " feebly clavate, not toothed 6. 4. Tibiae of usual form 5. " short and very thick Pachylobius. 5. Body with spots of fine pubescence Hylobius. " " " small scales Hilipus. 6. Eyes small, elytra oval, convex Hypomolyx. " larger, elytra elongate, parallel Eudocimus. PLINTHUS Germ. A single species of this genus, Avhich is easily recognized by the very short metasternum, occurs in Oregon and Alaska. It is very roughly LieConte.] HYLOEHNI. 139 sculptured and tuberculate. The thighs are slightly clavate, sinuate beneath near the tip, and armed with a small tooth. The tibiie slightly curved, not very stout, not compressed, strongly sinuate on the inner side, and serrate from the middle to the tip. The first joint of the funiculus is longer than the second ; 2-7 gradually a little stouter, rounded in form ; club small, oval pointed, pubescent. 1. P. carinatus Boh., Sch. Cure, vi, 334; Mann., Bull. Mosc. 1S52, 352; HeilipuH scrobiculatus Mann., ibid. 1843, 292, (9)- The (J' is smaller and narrower than the $ and has the abdomen broadly and deeply concave in front. The color is blackish brown, and in well preserved specimens the elytra are mottled with spots of yellow-brown small narrow hair-like scales. Length 6-9 mm ; .24-. 43 inch. HYPOMOLYX n. g. Body elongate, ovate, broader behind, proportioned nearly as in the Alophid;ie (Thricalophus). Beak as long as the prothorax, rather stout, slightly curved, coarsely punctured with deep triangular auteocular groove at the side, and three faint carinse above ; antennal grooves ex- tending to the lower edge of the eyes, which are transverse, rather small, and not very finely granulated. Prothorax without postocular lobes, pro- sternum broadly emarginate in front, and fringed with long yellow ciliae. Mesosternum as long as the first ventral segment. Ventral segments less unequal than in the other genera ; fifth but a little longer than fourth ; first suture obtusely angulated at the middle. Thighs scarcely clavate, sinuate beneath near the tip, not toothed ; tibiae slender, feebly sinuate on the inner side, armed with a strong apical hook. The first and second joints of the funiculus are elongate and equal, 3-6 rounded, shorter; seventh broader and larger, almost forming part of the club, though less so than in Hylobius. 1. H. pinicola. Hylobius pinicola Couper, Trans. Lit. and Historical Soc. Quebec, 1864. Lake Superior, Hudson Bay Terr., Canada. Mentioned by me in Agassiz Lake Superior, as Hylobius heros, but not described. A fine species, with the prothorax rather small, sub-serrate on the sides, very coarsely punctured, thinly clothed with coarse hair, carinate in front ; the elytra densely punctured, mottled with small spots of yellow hair; strias composed of large elongate deep punctures. Length 13.5 mm ; 5.3 inch. PACHYLOBIUS n. g. I have separated as a distinct genus Hylobius picivorus, which differs greatly from the other species by the tibiae being much shorter and stouter, and expanded at the tip, so that the corbels or surface included by the double edge on the outer apical margin is much wider than in the other genera of the tribe. The beak is as long as the prothorax, ratherstout, not curved, feebly sulcate in front of the eyes, antennal grooves attaining the middle 140 CURCULIONLD^. [LeConte. of the eyes, which are large, transverse, and not finely granulated. Anten- nfe stout, funiculus with rather short joints, becoming gradually broader, seventh forming part of the club, first and second joints very little longer than the following ones. Mesosternum a little longer than the first ventral, which is longer than the second; first suture broadly angulated at the mid- dle. Thighs clavate, very strongly toothed. Prosternum broadly emar- ginate in front, and fringed with long yellow cilite ; postocular lobes feeble. Legs stout, thighs clavate, sinuate beneath, and armed with a large tooth ; tibite suddenly dilated, strongly sinuate on the inner side above the middle and expanded at tip, corbels broad, smooth, lateral terminal hook very large, ilandibles quite different in form from those of the other genera, flattened, so that the tooth which is inferior in the other genera becomes anterior; the under surface is slightly concave, the upper one feebly convex, and the inner margin is obtusely 3-toothed. 1. P. picivorus Liparuspic. Germ., Ins. Nov. 311; Hylohius pic. Boh., Sch. Cure, ii, 340. Abundant under pine bark, in the Southern States, less frequent in the Middle States. HYLOBIUS Sch. The genus as here restricted, will contain onlj^ those species in which the mandibles are normal in form, the antennte stout, with the seventh joint of the funiculus broader and forming part of the club ; the ej^es are rather large and transverse ; the anteocular grooves are broad and. shallow. The postocular. lobes are large, and the prosternum deeply emarginate in front and fringed. The metasternum is as long as the first ventral. The thighs are clavate, sinuate beneath and strongly toothed ; tibia; slender, sinuate on the inner side, corbels narrow ; terminal hook strong. The second and fifth ventral segments are each as long as the third and fourth united, and the first suture is broadly angulated at the middle. 1. H. pales Boh., Sch. Cure, ii, 340; CurcuUo pales Herbst, Kafer, vii, 31; pi. 99, f. 10; Pissodes macellus Germ., Ins. Nov. 319 ; Harris, Ins. Inj. beg. ed. ult., 70, (larva). Lake Superior to Florida, abundant under pine bark. The head is very densely, though not coarsely punctured, and is nearly opaque ; the protho- rax is coarsely and rugosely punctured. The pubescence of the elytral spots is sometimes yellow, sometimes gray. Length 6.8-10.2 mm. ; .27-4 inch. 2. H. confusus Kirby, Fauna Bor. Am. iv, 196. Lake Superior. Closely resembles the smaller varieties of the preceding, but the head is shining, and less densely and rather more coarsely punc- tured. The punctures of the prothorax are also less confluent, and the surface less plicate. The pubescence is nearly white. Length 6.8 ram. ; .27 inch. 3. H. assimilis Boh., Sch. Cure, ii, 345. Unknown to me ; described as larger than H. pales with the head dis- LeConte.] HTLOBIINI. 141 tantly punctured, and the elytra without spots of pubescence. Perhaps identical with H. confusus, in which case the name has precedence. 4. H, stupidus Boh., Sch. Cure, ii, 339. Georgia. Unknown to me ; quite distinct by the narrow and feebly punctured elytral striae. HILIPUS Germ. This genus, largely developed in tropical America, is represented by a single rare species found in Georgia and Florida. Except that the spe- cies of this genus are mottled with spots of very small white scales, not hairs, and that the seventh joint of the funiculus is not connected with the club, the differences between it and Hylobius are rather comparative than absolute. The beak is cylindrical, and more curved, without anteocular grooves ; the antennal grooves terminate at a greater distance from the mouth; the eyes, postocular lobes and emargination of the prosternum are similar. The thighs are equally clavate, and sinuate beneath, but the tooth is much larger and broader ; the tibiae are compressed, bent inwards, equally strongly armed with a terminal hook, but much less sinuate on the inner side. The first ventral suture is deeper, and more strongly angulated at the middle. The sculpture is much coarser and sparser, and the spaces be- tween the large punctures are smooth and polished. H. squamosus (Lee), Ann. Lye. Nat. Hist. New York, i, 171; pi. xi, f 101 (Pissodes); Boh., Sch. Cure, iii, 161. Georgia and Florida, under pine bark. A beautiful black insect, with a broad white lateral vitta on the prothorax, and a very irregular one on the elytra, with many scattered small spots, densely clothed with depressed, very small, round, chalky white scales. Punctures of elytra very large, distant, interspaces smooth, shining, except where covered with scales. Length 14.4 mm.; .57 inch. EUDOCIMUS Sch. The beak in this genus is cylindrical, nearly straight and as long as the prothorax; there are no anteocular grooves; the antennal grooves reach the middle of the front margin of the eyes, which are large and transverse. The first and second joints of the funicle are elongated and equal; 3-7 shorter, gradually a little wider, club elongate oval, annulated pubescent. Prosternum fringed in front and broadly emarginate, postocular lobes broad. Metasternum as long as the first ventral; third and fourth ventrals together equal to the second or fifth; first suture nearly straight. Legs slender, thighs unarmed, tibiae straight, not compressed, armed with a strong terminal hook. Eu. Mannerheimii Boh., Sch. Cure, iii, 241. New York to Georgia: rare. A conspicuous species of elongate form, clothed with small brown scales; the prothorax striped with pale, and the elytra with conspicuous pale spots on the fourth interspace, which is also clouded with black. Length 10.5 — .15 mm.; .41 — .6 inch. 142 CURCULIONID^. [LeOonte. PISSODES Germ. The species of this genus have almost the appearance of small Hylohius, but differ remarkably by the following characters: The beak is more slender, cylindrical, without anteocular grooves; eyes small, nearly round; antennae with the funiculus more slender, and the greater part of the club shining, sparsely pubescent, and destitute of sensi- tive surface, not distinctly annulated; prosternum not emarginate in front, without postocular lobes. Metasternum as long as the first A^entral; third and fourth ventrals together shorter than second; first suture obliterated at the middle and widely angulated. Front coxfe slightly separated by the prosternum; legs rather slender, thighs not toothed, tibiae straight, slightly compressed, terminal hook strong, but proceeding rather from the outer than inner part of the apex of the tibiae; corbels wanting. I am not satisfied with the position of this genus, and am disposed to believe that it should be placed as a separate tribe. Thomson (Skand. Col. vii, 218) associates it with Trachodes, but there does not appear to me any resemblance between the two. The definition of his tribe Pissodina does not at all apply to Trachodes, in which the metasternum is very short, and the club of the antennae entirely pubescent and sensitive. These insects live under bark of pine trees, and are sometimes very inju- rious. There are evidently several species in our fauna, but the differences are not very obvious, and it is quite possible that a careful comparison with foreign species might reduce the number now recognized as distinct. Prothorax broader than long, more suddenly narrowed in front, and more strongly constricted, slightly bi- sinuate on the sides; dorsal carina distinct; altern- ate interspaces of the elytra more elevated 2. Prothorax not broader than long, more gradually nar- rowed in front, and feebly constricted; broadly rounded on the sides, dorsal carina variable 8. 2. Elytra with a broad posterior transverse band of yellow pubescence, becoming white towards the su- ture; prothorax less coarsely rugosely punctured. . 1. strobi. Similarly colored ; prothorax more coarsely and less rugosely punctured; alternate interspaces more dis- tinctly elevated 2. costatus. Prothorax more densely, less rugosely punctured, outer strife of elytra less distinct 3. fasciatus. 3. Hind angles of prothorax rectangular 4. affinis. " " " obtuse 5. dubius. " " rounded 6. rotundatus. 1. P. strobi Peck, Mass. Agr. Journ. 1817, iv, 205, (BhynchcBnus) ; Say, Cure. 14; ed. Lee. i, 227; Harris, Ins. Inj. Veg. ed. ult., 72; Pissodes nemorensis Germ., Ins. Nov. 318. LeConte. HYLOBnNI. 143 Lake Superior to Georgia. I can see no reason for considering the two names to represent distinct species, as lias been done by Gemminger and Harold, and by Crotch. 2. P. costatus Mann., Bull. Mosc. 1852, ii, 363. Alaska and Oregon. A beautifully preserved specimen from California, which I refer to this species on account of its form and sculpture, has the sides of the prothorax clothed with snow-white scales, and the posterior band of the elytra very broad, becoming white towards the suture, just as in the preceding species. In the other species the scales seem to be all yel- low, and the markings much smaller. 3. P. fasciatus, n. sp. Blackish-brown, thinly sprinkled with yellowish hairs and small scales ; beak strongly punctured, slender, not carinate ; prothorax not wider than long, gradually narrowed in front, broadly rounded on the sides, distinctly broadly constricted at tip, hind angles rectangular ; disc densely and con- fluently punctured, obsoletely carinate, sides clothed with yellow scales, narrow dorsal line and four small spots in the usual position yellowish ; elytra with a broad band before and another behind the middle yellowish, the latter whitish towards the suture ; inner strise deeply and irregularly punctured, outer ones less distinct, interspaces densely rugosely punctured, third and fifth slightly prominent. Length 7-9 mm. ; .28-. 35 inch. Two specimens, Oregon. Seems to differ from P. strobi chiefly by the thorax being longer, less coarsely punctured, and less rounded on the sides; by the beak being somewhat stouter, and by the elytral bands more trans- verse and less oblique towards the sides. 4. P. afflnis Randall, Bost. Journ. Nat. Hist, ii, 24. Lake Superior, Canada, and New Hampshire. Distinct from the pre- ceding species by the prothorax narrower, and less constricted in front ; from the two following species by the hind angles being rectangular. The disc of the prothorax is coarsely and somewhat rugosely punctured, much as in P. costatus, but the strise are composed of larger punctures, and the interspaces are quite flat. The scales are all cream color, and the posterior band is narrow and imperfect. 5. P. dubius Randall, Bost. Journ. Nat. Hist, ii, 24. Same range as the preceding, from the smallest specimens of which it differs chiefly by the sides of the prothorax converging a little near the hind angles, which thus become somewhat obtuse. There is also some difference in the scales on the elytra, which in well-preserved specimens are more diffused, with the markings less defined. 6. P. rotundatus, n. sp. This species quite resembles in size and form P. dubius, except that the sides of the prothorax are more rounded behind, so that the basal angles become still more obtuse and rounded. The prothorax is more densely punctured, and the alternate interspaces of the elytra are slightly elevated; 144 CUECULIOIsnD^. [LeConte. tiie transverse white spot behind the middle is small, and placed nearer the middle than in the other species. Length 5.7 mm. ; .225 inch. One specimen, Lake Superior. Tribe IV. CLEONiiiri. The character which distinguishes this from all neighboring tribes, is that the eh'tra are less extended on the flanks of the metathorax and abdo- men, so that the lateral angles of the first ventral segment become visible. The body is never very stout, and frequently is almost linear. The gular peduncle is sometimes short, sometimes long, emarginate at tip ; mentum large, flat ; ligula feebly or not prominent ; palpi much less de- veloped than in HyloMini. Tibiae more or less mucronate at tip; articular surface lateral; corbels wanting; claws connate at base, or at least approxi- mate. Antennae sometimes feebly geniculate ; joints of funicle graduall}^ broader ; club elongate oval, annulated, pubescent and sensitive. The other characters are variable. The beak is either short and thick, or long and cylindrical; the tarsi are dilated and spongy beneath, with the third joint broad and bilobed, or only hairy, with the third joint shorter and emarginate. The first and second ventral segments are long and con- nate ; in the elongate species the other segments are moderately long ; in the species with thick short beak they are shorter. The antennae are in- serted at a variable distance from the tip of the beak. Sexual differences are not apparent in the short beaked species ; in some of the elongate forms the beak is longer in the female. Gradatioual characters are observed in the form of the beak, antennae, tarsi and claws, varjnng by almost insensible degrees, so as to render the classification of this tribe very difficult. After several efforts, I am only able to offer the following table for the identification of the genera I have examined: Beak flat, stout, more or less grooA'ed, somewhat dilated at tip ; prothorax angulated on the sides near the tip, then suddenly constricted. Antennae rather stout, feebly geniculated ; ventral segments 3-5 shorter than in the subsequent genera. Tarsi usually not spongy beneath, in which case the third joint is emarginate, not bilobed... 2. Beak cylindrical, rather stout, not dilated at tip ; prothorax usually not angulated at the side ; ventral segments 3-5 not so short; tarsi usually spongy beneath, claws connate at base , 4. Beak' cylindrical, varying in length, generally smoother than in the preceding genera; antennae less approximate to the tip; prothorax not angulated at the sides: ventral segment 3-5 not very short ; tarsi spongy beneath, third joint broad, bilobed ; claws connate at base; second joint of funicle equal to first , LIXUS. LcContc] CLEOxmi. 145 2. Prosternum without spines in front of the coxae, 3. Prostemum armed with short spines in front of the 00X32 CENTROCLEONUS. 3. Beak strong!}' carinatc, third joint of hind tarsi not spongy heueath STEPHANOCLEOlSrUS. Beak feebly carinate, third joint of hind tarsi broad, spongy beneath CLEONOPSIS. 4. Hind tarsi with tliird joint shorter, emar- ginate, not spongy beneath CLEONASPIS. Hind tarsi with third joint broader, bi- lobed, spongy beneath CLEONUS. CENTROCLEONUS n. g. Body oblong, more robust than usual in this tribe, above very coarsely sculptured. Beak stout, somewhat longer than the head, a little wider at tip, usually carinate, and broadly bisulcate above, tip not emarginate; antennal grooves suddenly deflexed, commencing not very near the tip. Mentum large, flat, gular peduncle very short and broad ; neck finely trans- versely striate, with a deep median groove; eyes transverse, acute beneath, finely granulated. Antennae geniculate, scape slender, equal to funiculus, Avhicli has six distinct joints, first and second nearly equal, third to sixth shorter, rounded, seventh forming part of the club. Prothorax wider than long, sides parallel, suddenly and strongly angulated near the tip, which is then strongly narrowed and constricted; postocular lobes broad, fringed ; prosternum flattened, with an acute tubercle in front of each coxa; there are also two small prominences between the coxce. Mesosteruum shorter than first ventral; intercoxal process of abdomen broad rounded; 3-5 seg- ments together scarcely longer than second. Legs moderate, terminal hooks of tibise small; tarsi hairy but not spongj^ beneath; hind tarsi with second joint a little shorter than first, third one-half shorter, deeply emar- ginate; claws approximate, not connate. Conspicuous by the form of the prothorax, and very rough sculpture of upper surface. The species are rare, and may be distinguished as follows: Elytra coarsely punctato-striate 2. " more finely " " ; licak not carinate 4. molitor. 2. Pubescence intermixed with short hairs 3. " " " long " ; alternate in- terspaces of elytra elevated 1. pilosus. 3. Beak strongly carinate ! .". 2. annularis. " feebly " 3. porosus. 1. O. pilosus, n. sp. Black, upper surface of beak, and above the eyes, sides of prothorax, and greater part of elytra densely clothed with gray hair, intermixed with long erect yellowish hairs; head and beak coarsely punctured, the latter with two broad grooves and an obtuse median carina; prothorax covered with large vcr^- deep fovea?, sub-carinate at the middle and depressed at base, sides broadly subsinuate; elj'tra with rows of very large punctures, alter- PROC. A5IER. PniLOS. SOC. XV. 96. 3 146 CUKCULIOXID^. [LeConte. nate interspaces elevated; two transverse denuded bands reach neither suture nor margin; beneath gray pubescent, with blacli dots. Length 11.5 mm.; .45 inch. California: one specimen, given me by Mr. A. Murray. 2. C. annularis. Cleonus anrj. Lee. Col. Kansas, p. 18, pi. 1, f. 13. Kansas: specimens in my collection and in Dr. Horn's ditFer from the preceding by the hairs intermixed with the pubescence being short; the beak is more strongly carinate, the sides of the prothorax less sinuate, and the alternate interspaces of the elytra scarcely elevated. 3. C. porosus, n. sp. Black, clothed with grayish and yellowish pubescence, with short hairs intermixed; beak coarsely punctured, with a feeble short caruia at the mid- dle, and two short shallow grooves ; sides of prothorax nearly straight behind the postapical angle; elytra with rows of very large punctures, interspaces scarcely unequal; two indistinct darker transverse bands. Length 11.5 mm.; .45 inch. One specimen. Cape San Lucas, Lower California, Mr. Xantus. The elytral stricE are composed of larger and less approximate punctures than in C. angtilaris. 4. O. molitor. Cleonus molitor Lee. Proc. Acad. 1853, 78. California and Arizona. The pubescence is very dense, and scale like, not mixed with hairs, and is very easily abraded. The sculpture is much less coarse than in the other species, and the postapical angles of the prothorax are less prominent. STEPHAN0CLI30NUS Motsch. The essential characters of this genus consist in the prostcrnum without spines in front of the coxse, the postapical angles of the prothorax obtuse or rounded, not at all prominent as in Centrocleonus ; the antennae are stout, feebly geniculate; first joint of funiculus lougei*, second only equal to the third, seventh forming part of the club. Beak rather stout, strongly carinate; tarsi hairy beneath, not spongy (except the third joint of the front and middle pairs); hind tarsi with first and second joints elongated, third shorter, emarginate, not bilobed, claws connate at base. Humeri obliquely truncate 1. plumbeus. Humeri rounded 2. oristatus. 1. S. plumbeus, n. sp. Black, thinly clothed with nearly unifortu whitish fine pubescence, pro- ducing a leaden lustre; beak stout, shorter than the prothorax, strongly carinate, carina extending upon the head, but not to the tip of the beak; broadly sulcate each side, separated from the head by a transverse con- cavity, confluently and finely punctured, lateral space in front of the eyes with a few very large punctures. Prothorax quadrate, suddenly narrowed near the tip, and transversely impressed at the sides, postocular lobes scarcely fringed, postapical angles rounded, sides nearly parallel, base broadly emarginate in two arcs of a circle, middle angle not rounded; disc LcConte.] CLEOXINI. 147 finel}^ densely punctured with large scattered punctures, darker at the mid- dle than at the sides, carinate in front of the middle but impresised behind. Elytra with humeri obliquely truncate, base not concave, sides subsinuate, obliquely prolonged behind, surface densely finely punctured, stritB com- posed of moderate sized punctures, with faint indications of two oblique bands, and a small denuded polished spot near the tips, which are separately rounded, or subacute. Length 9-11 mm.; .35-. 45 inch. North shore of Lake Superior ; New Mexico. I have inadvertently mentioned this species in the list of Coleoptera of Lake Superior as C. oh- liquus, a European species which is quite different. 2. S. cristatus, n. sp. Black, densel}^ finely punctured, clothed with white pubescence; i>eak strongly carinate, carina ending anteriorly in a fovea, prolonged backwards upon the head, broadly and deeply sulcate each side, lateral edges acute, well defined, upper surface sparsely, sides more densely coarsely punc- tured. Prothorax of the same form as in the preceding, but the postocular lobes have a short fringe of hair, the sides are nearly straight and parallel, the base is less emarginate, and the basal and medial angles are less promi- nent; the pubescence seems denser at the sides than on the disc; sculpture as in S. plumbeus. Elytra with stria) of smaller and more approximate punc- tures; humeri not obliquely truncate, but rounded and not prominent, sides feebly rounded, not subsinuate, less distinctly obliquely prolonged near the tips which are conjointly, not separately rouruded; traces are seen of two dark oblique bands. Length 13 mm. ; .50 inch. One specimen, Utah, Dr. Horn. Easily known by the well defined lateral edge of the beak, and the different form of the elytra. The pubes- cence is less fine and more dense than in S. plumbeus. CLEONOPSIS n. g. I have been obliged to separate as a distinct genus, one species found in Texas and Colorado, which differs from CZeo?iM.s by stouter and flatter beak,, the form and method of coloration, and by the joints of the funiculus of the antennas, 2-6 being more closely united. It differs from Steplianode- onus hy the hind tarsi broader, the third joint not shorter, deeply bilobed,. with the lobes spongy beneath. I caanot identify it with any of the numerous genera mentioned by Mr. Chevrolat, though it would quite possibly enter into one of them'. 1. C. pulvereus. Cleonus pulv. Lee. Col. Kansas and New Mexico, 18.. Three specimens. A rather stout species, proportioned somewhat like C. trioiUahis, but with the prothorax suddenly tubulate in front, with a very broad discoidal black stripe, wider behind, and three oblique dark spots on each elytron. The beak is a little more than twdce as long as wide,, very coarsely punctured, feebly carinate, with slight traces each side of two grooves ; the second joint of the funiculus is shorter than the first, but somewhat longer than the third. The basal margin of the elytra is nuicii 118 CURCULIONID^. [LeConte. thickened and elevated, the base just beliind the margin is impressed. The scutellum is quite evident, and rather narrow. The base of the protliorax is obliquely emarginate each side, and the middle lobe longer than usual, with the angle rounded. CLEONUS Sell. Although the following species differ in minor details of structure, which by some entomologists are regarded as of generic value, there is such a general resemblance in appearance and in the more important characters, that it seems more natural to regard them as constituting one genus. I am the more confirmed in this belief from the impossibility of placing them with any satisfaction in the groups established on the species of the other continent, themselves very indefinite in extent. I would therefore include under this head all the species in our fauna in which the bealris stouter than in Lixus, but not dilated at txp ; the gular peduncle is not so broad and short as in the preceding genera, but is shorter than in Lixus; there is a difference between the species in this character, it being longer in proportion to the increasing slenderness of the beak. The front and middle tarsi are broad, the third joint at least spongy and bilobed ; the hind tarsi are hairy beneath in the first division, but broad and spongy in the second. The general tendenc}" of the pubescence is to form longitudinal stripes, and not transverse or oblique bands. The body is elongated, resembling Lixus. Our species maj^ be thus tabulated : A. Hind tarsi with third joint incompletely spongy beneath, deeply emarginate, feebly biloljed. Apleukus Chevr. Protliorax gradually narrowed towards the tip... 2. " suddenly narrowed towards the tip ; sides sub-sinuate 1. collaris. 2. Beak moderately strongly carinate ; front not impressed 3. Beak less strongly carinate ; front transversely impressed 4. •-3.. Bieak feebly carinate; front not impressed; elytra with broad black sutural and discoidal vittfe, •speckled with white 2. trivittatus. Elytra uniformly clothed with yellowish inibcs- cence 3. inornatus. 4. Elytral vittte irregular 4. frontalis. " " narrow, regular 5. virgatus. 5. Elytra pubescent with the first, second, sixth and seventh interspaces darker 6. quadrilineatue. B. Ilind tarsi with third joint spongy, broad, deeply bilobed. Protliorax carinate before the middle 3. " not carinate before the middle 2. LeOonte.] CLEONINI. 149 2. Pubescence short, pruinose 7. canescens. " longer and coarser 8. puberulus. 3. Protliorax sparsely coarsely punctured 9. carinicollis. " cribrate ; el3'tral punctures approximate 10. vittatus. Protliorax sparsely cribrate; punctures distant 11. sparsus. 1. C. collaris, n. sp. Black, thickly clothed with short dirt-colored pubescence ; beak not di- lated at tip, sides suddenly deflexed, nearly fiat above, with a very tine slightly elevated line, gradually becoming impressed in front, and not reaching the tip, ending behind in a small frontal fovea. Protliorax Avider than long, sides irregularly rounded, bent obliquely inwards near the base, suddenly I'ounded and narrowed near the apex, which is bisinuate, and strongly impressed at the sides ; disc sparsely cribrate, obsoletely carinate before the middle, very deeply excavated behind, sides with a curved im- pression which makes the outline sinuate when viewed from above. Ely- tra each with a deep rounded sub-basal impression, and an oblique lateral one at about one-fourth of the length ; strice composed of large somewhat dis- tant punctures, which appear somewhat unequal in size, as they are more or less covered with the pubescence ; the first and marginal interspaces seem to be tesselated with darker. Beneath clothed with dirt-colored pu- bescence and speckled with black. Length 11 mm. ; .45 inch. One specimen from Colorado. Dr. Horn. The front and middle tarsi are spongy beneath, with the third joint broad and bilobed ; the hind tarsi are not spongy, the third joint is shorter than the second, but scarcely wider, and deeply emarginate rather than bilobed. 2. C. trivittatus Say, Cure. 10; ed. Lee. i, 270; Germ., Sch. Cure, ii, 222. Colorado, rare. 3. C.inornatus. u. sp. Black, head densely punctured with a few coarse punctures, beak coarsely punctured, the latter distinctly carinate, and marked with two vittse of pale-brown hair ; protliorax longer than wide, gradually narrowed from the base forwards, feebly rounded on the sides, not constricted and but feebly impressed on the sides towards the tip ; base bisinuate, middle lobe broadly rounded ; disc denselj^ punctured, sparsely and very coarselj^ punctured, broadly but not deeply foveate-atbase, distinctlj' carinate in front of the impression, with four stripes of pale-brown hair, the discoidal ones being sinuate, the outer ones lateral. Elytra without imiiression, humeri rounded, sides parallel, strise composed in front of rather distant punctures, but becoming definitely impressed toward the tip ; densely clothed with rather coarse pale brown pubescence, which is a little thinner on the sec- ond and eighth interspaces. Beneath similarly pubescent, speckled with black. Length 13.5 mm. ; .53 inch. One specimen. Owen's Valley, California, Dr. Horn. The hind tarsi are 150 CURCULIOXID^E. [LeConte. rather wider than iu C. coUaris, and the third joint is more distinctly bi- lobed, with a portion of each lobe sjjongy beneath. The same character is seen in C. tmittatus. 4. O. frontalis, n. sp. Black, densely punctured, head sparsely, beak coarsely punctured, the latter uniformly pubescent with yellowish-gray hair, cylindrical, obsolotely carinate, broadly concave transversely at base ; prothorax not longer than wide, gradually narrowed and feebly rounded from the base, which is bi- sinuate, with the middle lobe acute, tip -not constricted, feebly impressed at the sides ; disc with four broad stripes of pubescence, and with scattered very coarse punctures, not distinctly carinate, basal impi'essions oval, not very deep. Elytra with three broad basal impressions, humeri rounded, sides parallel, striae composed of large distant punctures ; densely clothed with moderately fine yellowish -gray pubescence, Avith a broad sutural and another discoidal stripe more thinly pubescent, speckled with denser spots. Beneath similarly pubescent, thickly speckled with black. Length 9 mm. ; .86 inch. "Wyoming Territory, Dr. W. A. Hammond; Nevada, Dr. Horn. Smal- ler and more slender than G. trwittatws, and quite distinct by the above characters. The third joint of the hind tarsi is rather bilobed than emar- ginate, and is spongy at the tip of the lobes. The frontal concavity is broad and vague, and separates the head from the beak. One specimen has the beak distinctly carinate, and the frontal im]n'ession much deeper, but does not otherwise differ. 5. O. virgatus, n. sp. Black, densely punctured, head sparsely, beak coarsely punctured, tliinly pubescent, sub-carinate, with a broad transverse frontal impression ; pro- thorax a little longer than wide, 4-vittate with pubescence, gradually nar- rowed from the base, scarcely rounded on the sides, very coarsely cribrate, finely carinate, basal impression veiy feeble, base deeply bisinuate, middle lobe acute. Elytra without impressions, striaj composed of large equal not distant punctures, tolerably densely pubescent, with the second, sixth, and eighth interspaces thinly pubescent, and therefore darker. Beneath rather coarsely pubescent and speckled with black. Length 7 mm.; .28 inch. One specimen, Owen's Valley, California, Dr. Horn. The third joint of the hind tarsi is bilobed, and spongy beneath, but is shorter than the second joint. 6. C. quadrilineatus. Apleitrusqjuidr. Chevrolat, Mem. Acad. Liege, 2d ser. v. 80. Texas. In this species the pubescence is fine, the beak stouter and shorter, feebly carinate, with a small frontal fovea, the upper surface densely luibes- cent, the sides black. The prothorax very coarsely and sparsely punctured, the interspaces finely punctulate; the disc is dark, Avith the sides and two nar- row lines converging in front cinereous; base broadly impressed at the mid- dle, oblique each side, not acute at thescutellum. Elytra rather finely punc- LeO'onte.] CLEONINI. 151 tato-striate, with two cinereous vittas occupying the third, fourth, and fifth, and three outer interspaces, apices separately rounded, and sliglitly acumi- nate. Hind tarsi with tlie third joint not bi-oader than the second, bilobed, not spongy beueatli. Length 8.75-11.8 mm. ; .35-. 46 inch. 7. O. canescens, n. sp. Black, clothed with extremelj^ fine and short, almost pruinose pubescence. Beak' very stout, slightly thickened at tip, shorter than the prothorax, coarsely punctured, strongly carinate; carina abbreviated one-fourth from the tip, which is not emarginate, ending behind in a frontal puncture. Prothorax a little wider than long, sides nearly parallel, suddenly rounded and narrowed at the tip, which is feebly impressed at the sides, base broadly bisinuate, middle lobe feebly angulated, basal angles obtuse and rounded, disc densely punctulate, sparsely and very coarsely punctured, basal con- cavity deep, extending nearly to the middle. Elytra with rounded humeri, a little wider than the prothorax, sides parallel, then obliquely narrowed, tip obtusely rounded, semicircularly deeply impressed around the scutel- lum, which is small and deeply placed, front end of suture elevated, form- ing a small cusp ; stri* composed of large distant punctures, interspaces flat, scarcely- wider than the space between the individual punctures of the rows, slightly mottled with dots of denser whitish pubescence, and spots of a darker color. Beneath more coarsely and densely gray-pubescent, with large black punctures. Hind tarsi longer than the others, first joint longer than the second, third broader, bilobed, with the lobes spongy be- neath, broadly grooved at the middle. Length 10 mm. ; .40 inch. Colorado. Four specimens given me by Mr. Ulke. The beak is thicker than in the neighboring species, and it is otherwise easily recognized. 8. C puberulus, n. sp. Black, clothed with coarse pale gray pubescence. Beak coarsely punc tured, rather stout, not dilated at tip, sides parallel, upper surface not very convex, scarcely carinate, front feebly concave transversely. Prothorax not longer than wide at base, gradually narrowed in front, feebly con. stricted at the tip, base broadly bisinuate, middle lobe broadly rounded, disc with a few large scattered punctures, black, with the sides and two broad converging vittse, which almost meet at the tip, gray ; basal excava- tion very large and deep, extending beyond the middle. Elytra wider than the prothorax, broadly impressed around the scutellum, and flattened towards the humeri, which are rounded, sides parallel, then obliquely nar- rowed, tips obtusely rounded, sub-acuminate ; striae composed of large close set punctures, interspaces slightly convex, first, second, and seventh darker, and mottled with a few small spots. Beneath with large scattered black punctures ; hind tarsi with first joint not longer than second, third joint slightly wider, bilobed, lobes spongy beneath. Length 8-9.5 mm. ; .32-. 375 inch. Nevada ; several specimens. 152 CURCULIOlSriDJE. [LeConte. 9. O. carinicollis, n. sp. Black, pul^escence short and dense, gray. Beak shorter than the pro- thorax, stout, a little thicker at the tip, coarsely punctured, not strongly carinate for more than half its length, carina terminating at each end in a puncture, with a broad groove each side extending from the tip about one-fourth the length. Prothorax longer than wide, narrowed in front, sides broadly rounded, base oblique, broadly angulated and rounded at the middle, densely punctulate, sparsely and irregularly coarsely ]ninctured, basal excavation feeble, V-shaped, medial carina strong, extending from tip nearly to base. Elytra a little wider than the prothorax, broadly im- pressed around the scutellum and also near the humeri, which are oblique and less rounded than usual, sides straight, then obliquely narrowed, tip obtusely rounded, not acuminate ; striae composed of deep separate, but not very distant punctures, tirst and second, sixth, seventh, and eighth in- terspaces less mottled with pubescence than the others. Hind tarsi with the first joint longer and narrower than the second, third wider, broadly bilobed, all of them spongy beneath, with a narrow median groove. Length 13.5 mm. ; .53 inch. One specimen collected by me in Colorado. This species is of nearly the same form as C. trivittatus, but the elytra are more obliquely narrowed n-ear the tip, and the other characters are very different. The hair seems to be abraded from the head and prothorax. The scutellum is narrow but more obvious in this than in the other species. 10. C. vittatus Kirby, Fauna Bor. Am. iv, 199. Black, clothed with very fine short pruinose pubescence ; beak stout, a little wider at tip, feebly carinate for more than half its length, with a broad frontal concavity, densely punctured above, sparsely and more coarsely at the sides. Prothoi-ax longer than wide, sides nearly parallel, suddenly rounded and narrowed near the tip, base emarginate each side, middle lobe prominent, rounded, side angles acute; disc densely punctured and cribrate, basal excavation narrow, deep, medial carina distinct, ex- tending from the tip to the excavation; sides and tM^o dorsal vittie which are broad at base and narrow in front, pubescent. Elytra with rows of deep, rather approximate punctures, interspaces flat, third and seventh less pubescent, and therefore darker; base flattened around the scutellum, and again near the humeri, which are rounded ; sides parallel, then obliquely narrowed, tips obtusely rounded. Hind tarsi with the first joint a little longer, second and third spongy beneath, the latter broader and bilobed. Length 8 mm. ; .32 inch. One specimen from Oregon, and two from California. 11. O. sparsus, n. sp. Black, pubescence less fine, yellowish-gray. Beak cylindrical, not very stout, not wider at tip, punctured, scarcely carinate, with a broad frontal impression. Prothorax a little longer than wide, very slightly narrowed in front except near the tip, where it is suddenly rounded and narrowed and LeConte.] CLEo:t^iNi. 153 slightly tubulate, base strongly emarginate each side, middle lobe rounded, side angles acute ; disc punctulate with a few very large scattered punc- tures ; medial carina distinct, basal excavation narrow, deep; sides and broad dorsal vittse becoming narrower in front, pubescent. Elytra as in the preceding; except that the striae are composed of distant punctures; the second and sixth interspaces are less pubescent and darker. Hind tarsi as in C. vittatus. Length 6.5 mm.; .25 inch. One specimen from Colorado, in the collection of Dr. Horn. CLEONASPIS n. g. C. lutulentus differs from Cleonus by the hind tarsi being narrow, with the first joint longer than the second, and the third evidently shorter, not wider, and emarginate, not bilobed, and not spongy beneath. The beak is cylindrical, rather stout, a little shorter than the prothorax, and not at all carinate. The prothorax is a little longer than wide, slightly and gradually narrowed in front, feebly constricted at the apex ; the base is oblique and very feebly emarginate each side, with the middle lobe obtuse, scarcely prominent; the side angles are acute; the disc sparsely, coarsely punctured, obso'etely carinate, and the basal excavation is hardly percepti- ble. The elytra are transversely impressed at base, the humeri are not rounded, the sides are straight, and then almost regularly rounded to the tip; uniformly pubescent ; the strise are composed of large, rather approx- imate punctures. The scutellum is not depressed, triangular, longer than wide. The antennte are more slender than in Cleonus, with the first joint of the funiculus longer than the second, which is equal to the third; joints 2-6 rather closely connected. The antennal grooves are not confluent below, or I should place this species in Mecaspis. 1. O. lutulentus. Cleonus kit. Lee. Col. Kans. 18. Two specimens. New Mexico. The pubescence is of a uniform dirty brown, except that there is a slightly darker broad dorsal prothoracic stripe, becoming broader towards the base. LIXUS Fabr. The species of this genus are generally more slender than those of Cleonus, though not always. The tarsi ai'e broad and spongy beneath, with the third joint deeply bilobed. The beak is cylindrical, not thickened at tip, usually slender, except in L. pleuralis and texanus, and not cari- nated, except in L. pleuralis and sylvius. The antennal grooves commence at some distance from the tip of the beak. The antennae, except in L. pleu- ralis and texanus are slender, with the first joint of the funiculu"^ thicker, and the second as long as the two following united ; in those two the funi- culus is less elongated, less slender, and the second joint is somewhat less elongated. The species are numerous and difficult to distinguish; they are covered with a pollinose yellowish powder which is easily rubljed off, and in addi- tion, some of them are pubescent. In several species the apices of the PROC. AMER. PHILOS. 80C. XV. 96. T 154 CUKCULIONID^. [LeConte. elytra are prolonged into an acute spine, an.l the beak of the (^ is frequently shorter and stouter than in the 9 • A. Beak rather stout, subcarinate 2 . B. " " " not carinate 3. O. " more slender, not carinate, except in syieiMs 4. 2. Basal excavation of prothorax deep; surface above thinly clothed with gray pubescence ; sides of prothorax, elytra and under surface densely white pubescent 1. pleuralis. 3. Basal excavation of prothorax broad, not deep, surface dull, finely pubescent 2. texanus. 4. Antenuje moderately slender, first joint of funicle stouter than second 5. Antennae longer, more slender, first and second joints of funicle equal, each as long as the four following united 17. 5. Tips of elytra prolonged, pubescence pruinose... 6. " " not prolonged 9. 6. Body very elongated 7. " less elongated ; pubescence less fine, gray 8. 7. Pubescence gray, very fine 3. rubellus. " yellowish, denser • 4. auctus. 8. Tips of elytra long 5. caiidifer. " " very short ; prothorax asperate 6. asper. 9. Beak strongly, though not coarsely punctured. ... 10. " finely, densely punctulate 12. " sparsely punctulate or nearly smooth ; an- tennaj inserted about the middle of the length; basal concavity of prothorax feeble 15. 10. Beak obsoletely carinate 11. " distinctly " 7. sylvius. 11. Prothorax with shallower punctures 8. punctinasus. " " few deep " (smaller) 9. parous. 13. Antenna) inserted ^-\ from the tip 13. •' " near the tip, prothorax not rounded on the sides 10. terminalis. 13. Prothorax shorter, rounded and sub-sinuate on the sides 14. Prothorax long, not rounded on the sides 11. rectus. 14. Body long, elytral impressions not deep 12. mucidus. " " " " deep 13. concavus. " shorter and stouter than usual 14. musculus. 15. Elytra conjointly rounded at tip 16. " sub-acuminate at tip 15. perforatus. 16. Prothorax with sides rounded in front 16. scrobicoUis. LsConte. I CLEONINI. 155 Prothorax with sides feebly rounded in front ; disc channeled for two-thirds the length 17. placiclus, Prothorax more strongly cribrate 18. laesicoUis. 17. Antennaj inserted at the middle of the beak in 9 ; about one-third from tip in (j^; large, slender, rather shining, thinly and flnely pubescent 19. macer. 1. L. pleuralis Lee, Pr. Ac. Nat. Sc. Pliila. 1858, 78. Arizona and Lower California. The specimens from Cape San Lucas are more pul)escent, and in some individuals the pubescence is a little mottled on the elytra. It is perhaps L. modest us Mann. Bull. Mosc. 1843, 291 ; L. calif ornkus Motsch. Bull. Mosc. 1845, 378. 2. L. texanus, n. sp. Black, thinly clothed with gray or yellowish-gray hair, denser towards the sides, head and beak sparsely coarsely punctured, the latter stout, shorter than the prothorax, feebly carinate for half the length ; antennae inserted near the tip, not slender, first and second joints of funiculus equal, each as long as the two following. Prothorax scarcely longer than wide, graduallj^ narrowed in front, broadly rounded on the sides, not constricted at tip, covered with large, not very deep punctures, basal excavation feeble. Elytra wider behind the base than the prothorax, liumeri rounded, sides parallel, conjointly rounded at tip, striae composed of large not very distant punctures. Thighs slender, tarsi with the last joint as long as the others united. Length 8-10.3 mm. ; .32-. 40 inch. Two specimens from Texas ; Mr. A. Salle. 3. L, rubellus Randall, Bost. Journ. Nat. Hist, ii, 41. Brownisli-black, thinly clothed with very short, fine gray pubescence ; long, slender. Beak somewhat shorter than the prothorax, densely, finely punctured, with a few larger punctures intermixed ; obsoletely carinate, Avitli a large frontal puncture. Antenna? inserted near the tip of the beak. Prothorax longer than wide, gradually narrowed from base to tip, not con- stricted, sides nearly straight, base slightly oblique each side, medial angle very obtuse, not rounded; surface rugosely punctulate, with a few shallow punctures intermixed, excavation shallow, extending from base nearly to the tip. Elytra finely rugosely punctulate, with striie composed of not very distant punctures, tips prolonged, divergent, not acute. Legs brown, thighs slender. Length 8 mm, ; .33 inch. One specimen, Wisconsin. Mr. Randall's specimen measured .45 inch from tip of beak, and was found in Massachusetts. 4. L. auctus Lee, Pac. R. R. Expl. and Surv. Insects, p. 57. One 9 specimen, Oregon. Larger than the preceding, with the beak more slender, and the antenme inserted about one-fourth from the tip, (probably sexual characters); there is a well-marked frontal puncture, and 156 CURCULIOXID.E. [Ler'onte. another between the insertions of the antennre. The form and sculpture are similar in the two species, but the pubescence is much more dense in this one. 5. L. caudifer, n. sp. Rather stout, black, densely clothed with fine short gray pubescence. Beak slender, not as long as the prothorax, nearly smooth, finely pubescent at base, naked at the tip. Antennae inserted about one- fourth from the tip; frontal fovea elongate. Prothorax a little wider than long at the base, gradually much narrowed in front and not constricted, sides slightly rounded, base feebly emarginate each side, middle angle prominent, acute; dorsal excavation large, triangular, channeled, surface densely punctulate, with scattered shallow punctures. Elytra a little wider behhid the base ; medial impression broad, not deep ; stride composed of rather large distant punctures, tips prolonged, not divergent, but parallel. Thighs slender. Length 9.7-14 mm.; .38-. 55 inch. (J^. Beak less slender, uniformly pul)escent, a little broader at tip, and slightly flattened. 9. Beak a little narrower, smooth, and naked at tip. Three specimens, Illinois ; found also in British Columbia. 6. L. asper, n. sp. Rather stout, black, without lustre, clothed with fine gray pubescence. Beak as long as the prothorax, slender, densely punctured, more finely towards the tip ; antennae inserted about one-third from the tip, frontal fovea distinct. Prothorax scarcely wider at base than long, gradually much, narrowed in front, feebly constricted, sides slightly rounded, base feebly emarginate each side, middle angle broad and rounded; surface densely punctulate, with scattered large partly elevated punctures, dorsal excavation large, triangular, rather deep, impressed at the middle of the base. Elytra wider than the prothorax, impressions wide and tolerably deep, strife composed of approximate punctures, tips separately acuminate, though scarcely prolonged. Legs as in the preceding species. Length 11.3 mm. ; .45 inch. Three 9. and one (^ ; Owen's Valley, Cal., Dr. Horn. Quite distinct by the rough, partly elevated punctuation of the prothorax. The beak in the rf is less slender, and the antennae are one-fourth from the tip ; in the 9 the apical part is longer, so that they are inserted at one-third the length from the tip ; it also appears very obsoletely carinate in the latter sex from the front to near the insertion of the anteunse. 7. L. Sylvius Boh., Sch. Cure, vii, 430. One cT Pennsylvania; coll. Horn. I refer to this species a single speci- men, in which the body is black, shining, thinly clothed with fine cinereous pubescence, the beak rather stout, as long as the prothorax, strongly punc- tured, feebly but distinctly carinate from the frontal puncture to the inser- tion of the antennse ; the prothorax punctulate and coarsely punctured, with a small deep impression at the base; not longer than wide, nar- LeConte ] CLEONTNI. 157 rowed in front, feebly rounded on the sides, medial basal angle obtuse, not rounded. Elytra a little wider than the prothorax, transversely inijjressed behind the base, stria? composed of distant punctures, interspaces scarcely punctulate, tips separated, rounded, sub-acuminate. Length 8.5 mm.; .35 inch. 8. L. punctinasus, n. sp. Black, thinly clothed with line gray pubescence. Beak rather stout, as long as the protliorax, with the head strongly but not coarseh' punctured, with scarcely a trace of carina, frontal fovea distinct; antennte inserted near the tip of the beak.. Prothorax not longer than wide, gradually strongly narrowed in front, moderately rounded on the sides, base emarginate each side, medial angle obtuse not rounded, disc rugosely punctulate with many large shallow punctures, basal impression small, deep. Elytra a little wider tlian the prothorax, separately rounded at tip, basal impressions not deep, striae composed of distant punctures. Legs as in the preceding species. Length 7.7 mm. ; .30 inch. One (^ Ohio. Not very different from the preceding species, luit to be regarded as distinct on account of the antennte being nearer the tip of the beak, which is not carinate, and the tips of the elytra being separately rounded and not sub-acuminate. 9. L. parous, n. sp. Black, thinly clothed with coarser gray pubascence. Beak rather stout, not carinate, as long as the prothorax, strongly punctured, front transversely impressed, with a well-marked fovea. Antenna? inserted very near the tip of the beak. Prothorax wider than long, much narrowed in front, mod- erately rounded on the sides, base obliquely emarginate each side, medial angle obtuse, prominent, not rounded; surface punctulate, sparselj' coarsely punctured, basal impression vague, deep at the middle of the base. Eh'tra wider than the prothorax, tips rounded, basal impressions moderately deep, striae composed of large distant punctures. Legs as in the preceding species. Length 5.5 mm.; .23 inch. One (j^ California, Dr. Horn. The smallest species I have seen, and easily known by the coarsely punctured beak. 10. L. terminalis, n. sp. Elongate, black, cinereous pubescent, mottled with small spots of denser hair; beak not very slender, as long as the prothorax ; finely and densely punctulate, sides coarsely punctured;., antenna? inserted near the tip. Pro- thorax longer than wide, gradually narrowed from the base, sides straight, base broadly emarginate each side, medial angle small, pointed; surface finely punctured, with other somewhat larger punctures, dorsal impression extending nearly to the tip, channeled, deeper at the base. Elytra not wider than the prothorax, basal impressions not large, moderatelj' deep, striae composed of distant punctures, tips separately rounded. Thighs moderately clavate. Length 9-11 mm. ; .35-45 inch. (5"'. More densely pubescent, not shining. 5 . Less pubescent, shining. 158 CUECULION^ID^. [LeOonte. Middle and Western States, not rare. Easily known by the separately rounded elytral tips. There is no sexual difference in the position of the antenna?, but the beak is a little longer in 9 than in (^. The antenna3 are inserted about one-tifth the length from the tip. One rj^ from Georgia differs in having the punctures of the elytra less distant, and the tips of the elytra more broadly rounded. It is perhaps a distinct species. 11. L. rectus, n. sp. Elongate, finely pubescent, frequently pollinose, beak longer than the prothorax, upper surface finely and densely punctured, punctulate beyond the middle, antenna? inserted about one-third from the tip. Prothorax longer than wide, narrowed from the base, sides nearly straight, base emarglnate each side, medial angle prominent, obtuse, not rounded ; surface Avitli ap- proximate shallow punctures, interspaces finely punctured, dorsal concavity long, triangular, deep towards the base. Elytra not wider than the pro- thorax, strise composed of rather distant punctures, basal impressions deep, tips separately rounded. Length 10.5 mm. ; .42 inch. One 9> New York. Allied to X. concavus, but narrower, with the pro- thorax longer, and not rounded on the sides. I associate with this species one r^ from Georgia, in which the beak is more pubescent, the antennfe less distant from the tip (about a quarter of the length), and the tips of the elytra conjointly rounded. It may indicate a distinct species, but I am unwilling to separate it at present. 12. L. mucidus, n. sp. Large, rather robust, black, densely clothed with fine gray pubescence ! beak longer than prothorax, upper surfixce densely finely punctulate, obso- letelj' carinate behind the antennce, which are inserted about one-quarter from the tip. Prothorax wider than long, rounded on the sides, scarcely consi-ricted at tip, densely finely punctured, and with scattered, larger, tolerably deep punctures, base emarginate each side, medial angle prom- inent, not rounded; dorsal excavation oval, deep. Elytra a little wider than the prothorax, basal impressions wide not deep, strife composed of moderately distant punctures, tip conjointly rounded. Length 14.5 mm. ; .57 inch. One pair, Illinois, in the (^ the beak is more densely pubescent, and the antenna; are somewhat nearer the tip. 13. L. concavus Say, Cure. 14; ed. Lee. i, 275; Boh., Sch. Cure, iii, 57. Atlantic district, not rare. The beak is finely punctulate on the upper surface, the antennge are inserted in ^ about one -fourth, in 9 about one- third from the tip ; the punctures are denser in tbe former. The pro- thorax is wider than long, rounded on the sides, distinctly constricted at tip. The dorsal excavation is large, triangular and deep. The basal im- pressions of the elytra are also deep, and the tips are conjointly rounded. 14. L. musculus Say, Cure. 14 ; ed. Lee, i, 276 ; L. calandroides Ran- dall, Bost. Journ. Nat. Hist, ii, 42. LeOonte.] CLEONINI. 159 Canada to Texas ; Colorado. Shorter and stouter than our other species, and variable in appearance, according as the pubescence is well preserved or abraded. There is also some variation in the number and depth of the large punctures of the prothorax. The antennsB in ^ are about one-fourth from the tip of the beak ; in 9 about one-third. The prothorax is wider than long, strongly narrowed in front, rounded on the sides, feebly con- stricted at tip ; the dorsal excavation is not deep except at the base. 15. L. perforatus, n. sp. Elongate, black, thinly clothed with gray pubescence. Beak as long as the prothorax, finely punctured ; head very coarsely punctured. Protho- rax longer than wide, narrowed in front, feebly rounded on the sides, which are more thickly pubescent, very deeply and coarsely punctured, interspaces densely punctulate, basal excavation small. Elytra a little wider than the prothorax, scutellar impression wide not deep, intrahumeral impressions deep ; striae composed of subquadrate not distant punctures, tips separately acuminate, but not prolonged ; the inner and outer inter- spaces more densely pubescent, but not very obviously so. (^. Beak stouter, densely punctured, more coarsely on the sides, more finely towards the tip ; antennae one-third from the tip. 9. Beak more slender, shining, sparsely and finely punctiired, sides sparsely and less finely punctured. Antennae inserted about the middle of the beak. California, Fort Tejon. The elytral strise are alternately a little nearer. 16. L. scrobicollis Boh., Sch. Cure, iii, 84; L. lateralis\ Say, Cure. 14 ; ed. Lee. i, 276. One 9 specimen, Kentucky. A small species easily known by the sides of the pi'othorax nearly parallel, much rounded and constricted near the tip ; the dorsal excavation is small and basal; the punctures very large and deep, though sparse. The sides of the prothoi'ax and elytra are more densely pubescent ; the tips of the elytra are rounded ; the antennas are inserted at the middle of the beak, which is sparsely punctulate, with a few punctures intermixed at the base and sides. Length 7 mm ; .27 inch 17. L. placidus, n. sp. Black, somewhat shining, thinly pubescent, sides of prothorax and sub marginal broad vitta of elytra whitish pubescent. Beak rather stout, as long as the prothorax, finely not densely punctured, with a few larger punc- tures towards the base and on the sides ; antennae inserted at the middle of the beak. Prothorax a little longer than wide, gradually narrowed from the base, feebly rounded on the sides, not constricted at tip, finely punc- tured, with scattered not remote, moderately large but not very deep punc- tures, disc channelled, with a small basal impression. Elytra a little wider than the prothorax, conjointly rounded at tip, basal impressions shallow; striae composed of large rather distant punctures. Length 10 mm. ; .40 inch. Two 9> Colorado. A very distinct species of moderately elongate form. 160 CURCULIONID^. [LeConte. 18. L. laesicollis Leo., Proc. Ac. Nat. Sc. Pliila., 1858, 78. Texas. Beak stout, finely punctured, base, sides and head coarsely punctured ; prothorax very coarsely and tolerably densely cribrate, sides nearly parallel, rounded near the tip, basal impression small. Elytra with deep basal impressions ; striae composed of distant large punctures, tips conjointly subacute, scarcely rounded. 19. L. macer, n. sp. Very elongate, black shining, thinly clothed with fine gray pubescence. Beak longer than prothorax, curved, not stout, punctured ; head sparsely punctured. Prothorax scarcely longer than wide, strongly narrowed in front, feebly rounded on the sides, punctulate, with larger not deep punc- tures, middle of base deeply impressed, base emarginate each side, middle angle prominent, obtuse, rounded at tip. Elytra a little broader than the prothorax, basal impressions deep, striae composed of rather approximate punctures; tips conjointly subacute, slightly rounded. Length 12-19.5 mm.; .48-. 77 inch. (^. Beak stouter, a little longer than the prothorax, antennae inserted one-third from the tip. 9 . Beak nearly twice as long as the the prothorax, antennae inserted about the middle. Southern and Western States to Colorado and Texas ; not rare. I can- not understand how this species has remained undescribed. It is easily known not only by the large size and elongate form, but by the slender an- tennae; the first and second joints of the funiculus are ecpial, and very long. In some specimens there is a broad, sub-marginal pubescent vitta on the elytra, and in one individual this extends upon the sides of the prothorax. SPECIES NOT IDENTIFIED. L. marginatus Saj^ Cure. 13; ed. Lee. i, 275; Boh., Sch. Cure, iii, 70. L. praepotens Boh., Sch. Cure, iii, 63 ; Rhynchophorus pnepoteris Say, Cure. 21 ; ed. Lee. i, 287. L. poricollis Mann., Bull. Mosc. 1843, ii, 291. Li. modestus Mann., Bull. Mosc. ibid; L. calif or nicusMotsch., ibid. 1843, ii, 378. Perhaps L. pleuralis Lee. (p. 155). Tribe V. i;ririiiivini. This tribe consists of a great number of species, all of small size, and representing a large number of genera. Most of them are found near water, on plants, and some of them are quite aquatic in tlieir habits. In the beak, prosternum, tibiae and tarsi they differ greatly, so as to permit the recognition of several groups, as will be seen below, but they agree in the following characters : Mandibles with three teeth, separated by two cmargiuations, the middle tooth more prominent; in the group DesmorMnes the outer side of the mandibles, by the transposition of the inferior tooth, becomes toothed as LeConte.] EEIRHIXIXI. IGl in RJiynchitida; ; gular peduncle longer than wide, slightly cmarginate, mentum small, not transverse, ligula and palpi prominent, smaller than in Ilylohiini. The beak is cjiindrical, sometimes very long and slen- der, sometimes rather stout; the autennal grooves commence at a dis- tance from the tip, descend obliquely, and sometimes become confluent behind. The antennae are geniculate, the scape long and slender ; funiculus usually 7-jointed, sometimes (Endalus) 6-jointed; club oval, annulated, entirely clothed with sensitive surface except in Lissorhoptus. Prothorax with or without postocular lobes; front coxse contiguous, pros- ternuni flat, emarginate, or not, in front, sometimes (Bagous) broadly sul- cate for reception of the beak. Mesosternum with the side pieces diago- nally divided, epimera not attaining widely the base of the prothorax. Metasternum usually long, rarely (Phycocwtes) very short; side pieces narrow^ dilated in front. Hind coxaj widely separated, transverse, nar- rower externally, and extending almost to the elytral margin. Legs never very stout, thighs usually simple, rarely {Dorytomus) toothed; tibia3 trun- cate at tip and feebly mucronate in most genera, strongly unguiculate in Bagoi. Tarsi usually dilated, narrow in certain genera; last joint some- times long, sometimes short; claws not toothed, divergent, sometimes con- nate (Desmorhines), or single (Brachybamiis); last joint Avanting in the European genus Anoplus. Ventral segments unequal, third and fourth united about equal to the second or fifth; sutures straight, excepting the first which is sinuate in most genera, and the last, which is broadly curved in Stenopelmus. Our genera are numerous, and indicate several groups; in fact, all of those recognized by Lacordaire are represented, and I have found it neces- sary to establish two others. The affinities of the tribe are in several directions: towardsthe JTylobiini, Emphyastini (Phycocmtes), CeutorhyncMni {Ilydronomi). Mesosterrium as long as first ventral segment, 2. very short viii. PHYCOOCETES. 2. Tibine truncate at tip, feebly mucronate. ... 3. " not truncate, strongly unguiculate. . vii. HYDRONOMI. 3. Eyes contiguous to prothorax 4. " distant from " iii. EUGNOMI. 4. Body scaly or pubescent 5. " covered with a waterproof crust 6. 5. Beak not constricted at base; claws diver- gent i. ERIRHINI. Beak strongly constricted at base : claws connate or approximate ii. DESMORHINES. 6. Tarsi with third joint bilobed 7. '• " " " simple ; beak short and stout iv. STENOPELMI. 7. Last joint of tarsi short v. CRYPTOPLI. " " " " long vi. BRACHYPL PROC. AMER. PHILOS. SOC. XV. 96. U 162 CURCULIO^^ID^. tl^eContr. Group I. Erirtilni. The species have the beak long, usually slender, the mandibles with two sharp teeth at the end; the inferior cusp in Erycus comes to the outer mar- gin, and is not very prominent, bvit thus shows a tendency to assume the position which it has in the next group. The antennal grooves are directed against the eyes, and do not converge beneath. The scape nearly or quite attains the eyes, and the first, and usually the second joint of the funicle are longer than the others. The mesosternum is as long as the first ventral ; the legs are slender, tibiae truncate at tip, and feebly mucronate; the tarsi are spongy beneath, with the third joint dilated and bilobed; last joint long, claws rather strong, simple, divergent. This group recedes in the direction of the Phytonomini and Hylobuni* Thighs not toothed, prosternum emarginate 2. toothed, prosternum not " DORYTOMUS. 2. Body pubescent or glabrous 3. ' ' densely clothed with scales GRYPIDIUS. 3. Antennae inserted far from the tip of the beak ERYCUS. near " " " PROCAS. PROOAS Stephens. This genus bears a strong resemblance to Erycus, but differs in having ithe beak rather less slender, and the antennae inserted very near the tip; the second joint of the funicle is shorter than the first, though longer than ithe third. The pi'osternum is strongly emarginate in front, and the post- ' ocular lobes are broad. The thighs are unarmed, the tibiae straight, strongly pubescent, truncate at tip, and scarcely mucronate ; the hind pair have two small terminal spines or spurs, as mentioned by Touruier.f 1, P. picipes Stephens, 111. British Ent. iv, 90; Boh., Sch. Cure, vi, 387. Erirhinus Steveni GyW. , Sch. Cure, iii, 287: Procas SteveniSch. Cure, vi, 387. Lake Superior; Ulke. My specimen agrees so closely with the descrip- tion and figure (DuVal, Gen. Col. Eur. iv. pi. 13, f. 58), that I do not ven- ture to separate it. Opaque, black, slightly mottled with spots of very fine pubescence ; head and beak very densely punctured. Prothorax a little wider than long, rather small, rounded on the sides, narrower in front, and very slightly constricted; very densely punctured. Elytra one-third wider than the prothorax, oblong, humeri rounded, striae deep, catenate with dis- tant punctures; interspaces wide, flat, finely and densely rugose and sub- granulate. Beneath densely punctured, less opaque. Length, 5.3 mm; .21 inch. * The following species do not belong to this tribe : Erirhinus ephippiatus Say, has the thighs not toothed, and the claws broadly appendiculate; it indicates a new genus Alyca oi Anthonomini. Erirhinus juniperinn^ Sanborn, is an Antho- nomus. Erirhinus lutulentus and rutilus Boh., Sch. Cure, vii, 2d, 165 and 167 not identified. Annates Soc. Entom. Belgique, xvii. lieConte.] ERIEHIXIXI. 1 (33 G-RYPIDIUS Sch. 1. G. equiseti GylL, Sch. Cure, iii, 314; Curculio eq. Fabr., Ent. Syst. i, 403; Rhynclmnus eq. Fabr., Syst. El. ii, 443, &c. &c. A common European species which is is indigenous in Canada, Kansas, and on the north shore of Lake Superior. A Canadian specimen was sent me by Mr. W. Couper, wliicli I determined simply as Gri/piditm, n. sj).?, but by some confusion of labels, in describing the species to which I had given no definite names, he has given the name 6?. vitiatus* to a small species of Sitones, apparently the S. tibialis of Europe, which occurs in Can- ada and in Hudson Bay Territory, perhaps imported, perhaps indigenous. 2. Gr. brunnirostris Gyll., Sch. Cure, iii, 316; Bliynchanus br. Fabr., Syst. El. ii, 445, &c. Two specimens from Oregon do not appear sufficiently distinct from this European species. It is smaller than the preceding, and easily known by the elytral interspaces being even, not tuberculate, and the scales uniform in color. ERYCUS Tournier, Ann. Ent. Belg. xvii. This genus contains those species of Erirhinus in which the prosternum is deeply emarginate in front, and the postocular lobes broad and distinct. The hind tibi;B are feebly mucronate, and have in addition two very small spines or spurs. But two species are known to me, the first of which differs but slightly from the European E. CBthiops. Nearly glabrous, shining ; prothorax sparsely punc- tured 1. morio. Mottled with pubescence ; prothorax coarsely, densely punctured 2. puncticollis. 1. E. morio Mann., Bull. Mosc. 18-)3, ii, 240 (Erirhinus.) Alaska, Vancouver Island, Great Slave Lake, Canada. 2. E. puncticollis n. sp. Black, mottled with yellowish pubescence. Head and beak strongly not densely punctured; prothorax as long as wide, sides feebly rounded, more strongly in front, tip slightly impressed on the sides, surface coarsely and densely punctured. Elytra wider than prothorax, humeri rounded, stria) with quadrate approximate punctures, interspaces densely punctured, irregularlj^ pubescent, with a more conspicuous sutural transverse spot be- hind the middle. Thighs somewhat clavate, not toothed; front and mid- dle tibias moderately strongly mucronate, hind pair with a very small mu- cro, and small terminal spurs. Body beneath coarsely and densely punc- tured. Length 5.5-6 mm; .22-. 25 inch. Middle and Western States and Lake Superior. Looks like a small Pissodes. * Canadian Naturalist 1865, p. 63; v. ante, p. 115. IGl CURCULIOXID^. [IjeConte. DORYTOMUS Scli. In this genus the prosternum is not emarginate in front, and the thiglis are armed beneath with a distinct tooth; in the first three species tliis tooth is small and acute, in the others broader and nearly rectangular. The prothorax is narrower than the elytra, suddenly narrow^ed, and some- times constricted in front, without postocular lobes. The body is mottled with spots of pubescence, which in D. sqtiamosus is very short and scale- like. The species occur mostly on willows. Thighs more slender, tooth small, acute; beak very long, striate ; antennjic more slender, second joint of funicle longer than third 2. Thighs stouter, tooth broader and larger 3. 2. Prothorax finely punctured, not constricted at tip 1. mucidus. Prothorax strongly punctured, suddenly con- stricted at tip 2. laticollis. Prothorax densely punctured, gradually rounded and feebly constricted at tip 3. rufulus. 3. Beak striate 4. ' ' punctured, scarcely striate 7. 4. Prothorax not wider than long 6. " distinctly transverse, coarsely and densely punctured, suddenly narrowed at tip and constricted 4. brevicollis. 5 . Prothorax not constricted at tip 6. " constricted " " 5. luridus. 6. " suddenly narrowed in front 6. subsignatus. " gradually rounded near the tip 7. longulus. 7. Pubescence squamiform, slightly mottled, pro- thorax gradually rounded near the tip, not constricted 8. squamosus. Pubescence coarse, hairj', nearly uniform 8. 8. Fulvous, wdtli yellow pubescence 9. Mannerheimii. Piceous with gray pubescence 9. 9. Pubescence of elytra mixed with longer hairs. . lO. hirtus. " " " " erect stift'hairs 11. hispidus. 1. D. mucidus. Erirhinus muc. Say, Cure. 14; ed. Lee. i, 277; Gyll., Sch. Cure, iii, 291. Canada and Kansas, abundant at Los Angeles and Oakgrove, Cal.; G. R. Crotch. Larger than our other species, and easily recognized by the more finely punctured prothorax, and very long beak. Breeds in blossoms of cottonw'ood; develops very rapidly, (Riley). 2. D. laticollis n. sp. Pitchy black, irregularly mottled with cinereous pubescence. Beak very long, slender, striate and coarsely punctured, strongly curved. Prothorax wider than long, rather coarsely punctured, without dorsal line, sides LeConte. EBIRIIINIXI. 165 rounded, suddenly narrowed near the tip, and strongly constricted. Elytra very little wider than the prothorax; stride composed of close-set punctures, disc convex, obliquely impressed near the base, interspaces flat, finely punctulate. Thighs rather slender, armed with a small acute tooth. Length 4.5 mm; .175 inch. Lake Superior and Iowa. 3. D. rufulus. Erirhinus ruf. Mann., Bull. Mosc. 1853, ii, 240. Alaska: one specimen kindly sent by Baron Chaudoir. Smaller than the preceding, and very closely allied to it, differing chietly by the sides of the prothorax less rounded, less suddenly narrowed and less deeply constricted at tip, and by the elytra one-third wider than the prothorax. The color is ferruginous, though this may not be of specific value. The beak is scarcely as long and slender, but the legs are similar. Mannerheim erro- neously states that the thighs are unarmed. 4. D. brevicollis, n. sp. Pitchy black, irregularly mottled with cinereous hair, autennpe and legs brown. Beak as long as the head and prothorax, strongly striate and coarsely punctured. Prothorax' one-half wider than long, densely punc- tured, sides rounded, tip constricted ; elytra one-third wider than the prothorax, convex ; striae closely punctured, interspaces sparsely punctu- late. Thighs stout, with a rather large tooth. Length 3.5-4.3 mm; .14-. 17 inch. Western and Middle States and Lake Superior. Differs from the follow- ing species chiefly by the more transverse prothorax. 5. D. luridus. Erirhinus lur. Mann., Bull, Mos. 1853, ii, 241. Alaska and California. I have a specimen in bad condition, from Geor- gia, which may possibly belong to this species, if not, it will indicate a new one closely allied. In well preserved specimens the pubescence is very coarse and mottled in color. The posterior callus of the elytra is somewhat distinct, but by no means sufficiently so to warrant Manner - helm's expression, "elytris ante apicem utrinque tuherculo tnstructis." Two smaller specimens from Alaska have the thorax less rounded on the sides near the tip, and in one of them there is a distinct smooth, narrow, dorsal vitta; they were sent to me as Erirhinus vestitus Mann., a very dif- ferent species, which has the beak punctured but not striate. Four specimens of small size were ^collected by Mr. Crotch in the Mojave Desert, Cal., which I would temporarily refer to this species. Thej^ are yellow brown with a broad darker stripe on each elytron. They agree in form with the Eastern specimen, and are a little more robust than those from Alaska. Length 2.5 mm; .10 inch. A larger series of well-preserved specimens will perhaps show the pro- priety of receiving these three forms as distinct species. 6. D. subsignatus. Erirhinus subs. Mann., Bull. Mosc. 1853, ii, 241. Alaska, Count Mnizech and Prof. Maklin. 166 CURCULIOS^ID^. [LeConte. 7. D. long-ulus, n. sp. Ferruginous (immature?), mottled with cinereous pubescence. Beak as long as the head and prothorax, nearly straight, not very slender, deeply striate and punctured. Prothorax not wider than long, gradually narrowed and rounded on the sides in front, and not constricted ; densely though not coarsely pvinctured, with a slight trace of a smooth dorsal line. Elytra elongate, one-quarter wider than the thorax, convex, transversely impressed near the base, strise closely punctured, margin impressed just behind the humerus. Thighs stout, with a broad tooth. Length 3.5 mm; .14 inch. One specimen from Alaska sent with D. rufulus, from which it is abundantly distinct by the longer form, different prothorax, stouter and more strongly toothed thighs. The transverse impression of the elytra near the base is rather stronger than in D. luridus, and very much as in D. suhsignat'us, with which it agrees except in the form of the prothorax. 8. D. squamosus. AnthouomusX tessellatus\ Walsh, Proc. Ent. Soc, Phila. vi, 207. Piceous, or ferruginous, mottled with pale depressed scale-like hairs. Beak as long as the head and prothorax, not striate, punctured, nearly smooth at tip. Prothorax a little wider than long, densely punctured, sides rounded in front, and slightly constricted. Elytra one-third wider than the prothorax, convex, striaa rather coarsely punctured. Thighs rather slen- der, tooth small. Illinois and Kansas: bred by Mr. B. D. Walsh from galls which occur on willow. Mr. Walsh recognized the resemblance in form to Erirhinuf^, but unfortunately misplaced this species, in which the claws are simple and divergent. 9. D. Mannerheimii. Erirhinus Mann. Gemminger, Col. Hefte, viii, 133; Erirhinus vestitus \\ Mann., Bull. Mosc. 1853, ii, 343. Alaska, one specimen. Prof. Maklin; British Columbia. Quite distinct from the other species in our fauna by the uniform coarse gray pubescence, and the punctured beak; the prothorax is a little wider than long, suddenly narrowed, rounded and feebly constricted near the tip. Length 3.5 mm: .10 inch. 10. D. hirtus, n. sp. Brownish yellow, or fulvous, clothed with coarse yellow hair, which is mixed with longer hairs on the elytra. Beak as long as the head and pro- thorax, finelj^ punctured, feebly striate near the base, marked between the antennai with an elongate fovea. Prothorax transverse, one-half wider than long, rounded on the sides, suddenly narrowed, rounded and constricted near the tip ; disc strongly not very densely punctured, obsoletely chan- neled. Elytra wider than the prothorax, oblong elongate, humeri rounded; strife composed of approximate square punctures, interspaces flat, sparsely punctulate and rugose. Thighs armed with a small tooth. Length 3.5 mm; .14 inch. One specimen, San Diego, Cal. LeConte.] ERIRHINIXI. 107 11. D. hispidus, n. sp. Brownish yellow, clothed with coarse yellow hair, slightly mottled near the tips of the elytra, and mixed on the elj'tra with longer stitf suberect bristles. Beak as long as the head and prothorax, finely punctured, with- out stnse and without interantennal fovea. Prothorax strongly punctured, with an indistinct smooth dorsal line ; one-half wider than long, rounded on the sides; suddenly rounded, narrowed, and very feebly constricted near the tip. Elytra oblong elongate, wider than the prothorax, humeri rounded, striae composed of approximate punctures, interspaces wide, fiat, sparsely punctulate. Thighs armed with a small tooth. Length 3.5 mm; .14 inch. One specimen. New Mexico. Very similar to the preceding, but suffi- ciently distinct by the suberect bristles of the elytra, the prothorax less constricted at the tip, and the beak without a fovea between the antennae. Group II. Desmorhlnes. In the genera constituting this group the beak is slender, and separated from the head by a sharply defined transverse line, or constriction. In our genera the claws are connate at base, but as this character is not mentioned in the European genus Sharpia (Tournier, Ann. Ent. Belg. xvii,) and is somewhat variable in Smicronyx, I do not know that it is properly of group value. The mandibles are truncate at tip, and toothed botli on the inner and outer edge as in Rhynchitidte. The prosternum is emarginate in front, and the ventral sutures are very slightly curved at the sides. The antennal grooves descend obliquely and are almost confluent behind. AntenuiB with first and second joints of funicle elongated 2. Antennai with second joint of funicle scarcely longer than third 3. 2. Antennae slender, club small, oval DESMORIS. stouter, club larger, elongate oval PACHYTYOHIUS. 3. Claws small, frequently connate nearly to the tip SMICRONYX. DESMORIS n. g. This genus corresponds closely with Erirhinus, except in the differences indicated in the definition of the group, viz., the connate claws, the oblique antennal grooves which are nearly confluent behind, and the beak constricted at base. The second joint of the funicle is as long as the first, but more slender. The thighs are clavate, unarmed. The tibiae slightly mucronate and truncate at tip, nearly as long as the thighs ; tarsi dilated, third joint deeply bilobed, fourth joint long; claws small, connate nearly to the tip. The appearance is that of Balaiiinus in miniature, the eyes are rather large and transverse, the sides of the prothorax scarcely lobed, and the prosternum moderately emarginate in front ; the prothorax is rounded on 168 CURCULIONID^. [LeConte. the sides, narrowed in front, feeWy constricted near the tip ; the elytra wider than the prothorax, stria; deep, slightly punctured, interspaces flat. The beak is one-half longer than the head and prothorax, and is separated from the head by a deep transverse impression. Scape of antennae not attaining the eyes 1. scapalis. nearly " " 2. constrictus. 1. D. scapalis, n. sp. Dark-brown, densely clothed with whitish scales. Beak strongly punc- tured, antenna? slender, with the scape not reaching the eyes, inserted about the middle of the beak. Head sparsely punctured, separated from the beak by a shari) transverse impression. Prothorax densely punctured, very convex, not longer tlian wide, much rounded on the sides, narrowed in front, and constricted at the sides at a greater distance from the tip than usual, base nearly straight. Elytra one-half wider than the prothorax, convex, feebly emarginate at base, humeri prominent, rounded ; striae deep, strongly punctured, interspaces flat, sparsely rugosely punctured. Thighs strongly clavate. Length 4.5 mm. ; .17 inch. One specimen, Kansas. Larger than the next, and easily known by the short antennal scape, which fails to reach the eyes by a length equal to the first joint of the funicle. 2. D. constrictus. Rhynclmnus constr. Say, Journ. Ac. Nat. Sc. Pliila. ill, 318; ed. Lee. ii, 176; Balaninus constr. Say, Cure. 26; ed. Lee. i, 294 ; Sch. Cure, vii, 293 ; ErirhiimH constr. Gyll., Sch. Cure, iii, 286. Kansas and Missouri, not rare. The beak is not quite so long in (^ as in $ ; it is ininctured in the former, and squamose beliind the antenna;; in the latter it is glabrous, except at the base, and smooth except on the sides near the base. Smaller than the preceding, with the sides of the thorax less rounded ; the color is blackish, with the antennae and legs dark ferru- ginous. Either of these species will agree with the descriptions of Say and Gyllenhal. The latter author does not mention the transverse con- striction at the base of the beak. PAOHYTYCHIUS Jekel. The species which I have referred to this genus are rather convex and stout insects, having the sides of the prothorax and elytra rounded. They agree with Desmoris in having the second joint of the funicle elongated, but the antennae are stouter, and the club larger. They difler from Smi- cronyx chiefly by the second joint of the funicle being obviously longer than the tliird. The claws are connate for one-half their length. Elytra mottled with spots of gray scales 1. amoenus. " with broad white margin 2. discoideus. 1. P. amoenus. TycMus amoinus Saj', Cure. 26; ed. Lee. i, 294; Gyll., Sch. Cure, iii, 419. Western States, and Lake Superior. A very robust species, clothed LeConte.] EKIRHINIXI. 1G9 witli dark-brown scales; the prothorax has four whitisli vitta3; the el3'tra a short basal liue on each, and some narrow irregular whitish bands ; the sides of the prothorax are much rounded and incurved at the base. The scales at the base of the beak form two little tufts as in the next species. 2. P. discoideus, n. sp. Robust, black, clothed with wiiite scales ; disc of prothorax and elytra brown. Beak longer than head and thorax, not slender, curved, strongly punctured, not thickened towards the base, which is deeply transversely impressed; the scales form two small tufts near the transverse impression. Prothorax wider than long, very much narrowed in front, strongly rounded on the sides, which are incurved near the base, though less so than in P. amosnus, coarsely and densely punctured ; disc brown for two-thirds the length, and one-half the width ; with a whitish basal vitta. Elytra wider than prothorax, rounded on the sides, thqugh less so than in the preceding; humeri rounded, but somewhat prominent ; striae tine, interspaces flat. Thighs clavate, claws connate for about one-half the length. Length 2.5 mm. ; . 10 inch. New York, Illinois, Texas, and California. The discoidal spot of the elytra extends from the base for half the length and breadth; there is frequently a black lateral spot on the elytra, just behind the middle. SMICRONYX Sch. This genus contains small species which only differ from Pachytychms by the second joint of the funicle being shorter than the first, and frequently not longer than the third ; the scape reaches to the eyes. The postocular lobes of the prothorax are sometimes distinct, and the proster- num is moderately emarginate in front. The beak is shorter tlian in Deajnoris, and is slightly thicker at base ; the transverse constriction is well defined, and the pubescence at the base of the beak rises into two tufts. The form varies somewhat, the first species resembles ParJiytychim by the strongly rounded sides of prothorax and ovate elytra ; others resemble in miniature Dorytomu><, but the thighs are not toothed, and the claws are small and connate almost to the tips. Others again have the claws approxi- mate, but scarcel}'^ connate. The genus, even as thus defined, seems to me somewhat heterogeneous, and with more careful study will be found perhaps, to contain elements representing other European genera. It will be for future investigators to determine if our species shall be partitioned, or the European forms con- densed. The species are difficult to define, and the table given is not very satis- factory. Second joint of funicle of antennse not longer than third ; claws connate for more than half the length 2. Second joint of funicle of antennae longer than third; claws not connate, or feebly so 7. PROC. AMER. PHILOS. SOC. XV. 96. V 170 CUKCULIONLD^. [LeConte. 2. Elytra ovate, rounded on the skies 3. ' ' oblong, parallel " " 4. 3. Prothorax transverse, scales yellow 1. corpulentus. " scarcely wider than long, scales gray 2. ovipennis. 4. Beak straight, scales gray 5. ' ' curved 6. 5. Elytra suddenly wider than prothorax 3. griseus. " gradually, slightly wider than prothorax 4. obtectus. 6. Of usual size, scales yellow, elytra rather broad. . 5. flavicans. Very small, scales grayish, elytra narrow 6. pusio. Of usual size, mottled with spots of grayscales. . 7. tychioides. 7. Interspaces of elytra not setose 9. " " with single rows of hairs. . 8. 8. Of usual size and form 8. vestitus. Smaller and more elongate 9. seriatus. 9. Scales mottled in color 10. " small, uniform bright fulvous 10. fulvus- " large, dirty gray 11. sordidus. 10. Elytra longer and less convex 12. cinereus. " more convex, scales large, oval 13. squamulatus. " " " " narrow 14. corniculatus. 1. S. corpulentus, n. sp. Robust, black, densely clothed with oval ochreous scales ; beak densely punctured, slightly curved, as long as the head and prothorax, thinly pu1)escent. Prothorax nearly twice as wide as long, convex, sides strongly rounded, densely punctured, punctures obscured by the scales, disc darker than the sides. Elytra convex, sub ovate, one fourth wider than the pro- thorax, humeri prominent, rounded, striae well impressed, fine, interspaces flat ; disc with a common dark spot extending from the base nearly to the middle, wider behind, and reaching the third stria. Antennae with the funicle rather stout, second joint not longer than the third ; hind tibiae scarcely mucronate. Length 2.7 mm ; .11 inch. One specimen, Louisiana. Resembles in form Pachytycldus discoideus, but easily distinguished by the generic characters, and the difterent color of the scales. 2. S. ovipennis, n. sp. Robust, piceous black, thinly clothed with large gray scales ; beak punc- tured, thinlj^ pubescent, slightly curved, as long as the head and prothorax, Prothorax scarcely wider than long, rounded on the sides, narrower in front, convex, densely punctured. Elytra ovate, nearly one-half wider than the prothorax, humeri rounded, striae deep, sparsely punctured, in- terspaces flat. Antennae with the funicle rather stout, second joint not longer than third; hind tibiae scarcely mucronate. Length 2.5 mm. ; .10 inch. Michigan, Kansas, Texas. The color of the scales is sometimes uniform, LieConte.] ERIRHININI. IV I sometimes mottled ; it is easily recognized by the ovate elytra, which are distinctly wider at the middle than at the base. 3. S. griseus, n. sp. Black, not very densely clothed with oval gray scales; beak longer than head and prothorax, less curved than usual; squamose towards the base. Prothorax without postocular lobes, slightly longer than wide, gradually narrowed from the base, feebly rounded on the sides, moderately constric- ted at the sides near the tip ; not very convex, finely punctured. Elytra elongate, one-third wider than the prothorax, humeri not very prominent, broadly rounded: striae impressed, punctured, not concealed by the scales. Antennae and legs very dark-brown. Length 2 ram.; .08 inch. Southern and Western States, Georgia to Kansas. This is probably Micronyx cinereus jDej., a name since used for another species. 4. S. obtectus, n. sp. Black, very densely clothed with broadly oval yellowish scales, conceal- ing the punctures; beak as long as the head and prothorax, curved ; pro- thorax a little longer than wide, gradually narrowed in front, and con- stricted as in griseus, but more rounded on the sides, strongly, not densely punctured. Elytra of the same form as in griseus, striae concealed by the scales, but when they are removed, deep and punctured, interspaces flat, nearly smooth. Legs and antennje very dark -brown. Length 3 mm.; .08 inch. California, found by me at San Diego. 5. S. flavicans, n. sp. Piceous, clothed with small ochreous scales ; beak slightly curved, as long as the head and prothorax, punctured, opaque, thinly pubescent. Prothorax a little wider than long, rounded on the sides, narrower in front, convex, densely punctured, postocular lobes broad, distinct. Elytra oblong, convex, sides parallel, then rounded at the tip ; one-third wider than the prothorax, humeri prominent, rounded; stride well impressed, in- terspaces slightly convex. Antennie with second joint of funicle not longer than third, legs brown, hind tibia scarcely mucrouate. Length 2.7 mm.; .11 inch. Texas. Belfrage ; one specimen. 6. S. pusio, n. sp. Quite similar to S. obtectus, but very much smaller, with the scales broadly oval and very dense. The striie of the elytra seem to be finer and somewhat nearer by pairs, the second and fourth interspaces appearing wider. Antennae and legs dark-brown. Length 1.5 mm. ; .06 inch. Cape San Lucas ; Mr. Xantus. 7. S. tychoides, n. sp. More robust and convex, black, irregularly mottled with small whitish scales, which are of two forms, some being broad and some quite narrow. Beak curved, longer than head and thorax, punctured and scaly towards 172 CUKCtJLIOXID.E. [LeConte. the biise. Prothorax lNI. The genus TracJioden, which occurs in Europe, Asia and Alaska, difl'ers suflEiciently from all others in our fauna to merit being placed in a separate tribe. Lacordaire classed it with the Molytini, which however seems an unnatural grouping of genera agreeing only in convex body, short meta- sternum, and absence of wings. The beak is rather slender, as long as the prothorax; the antennae are inserted a little before the middle (9)> or ^'^^- third from the end (cJ*), rather slender, the scape reaching the inferior margin of the eyes, which are nearly round, coarsely granulated, and somewhat removed from the prothorax; the funiculus is 7-jointed, first joint elongate and stout, second nearly as long, but slender, 3-7 short, slightly increasing in thickness ; club rounded oval, about one-half longer than thick, annulated, pubescent, tip rather pointed. Prothorax scarcely lobed, but ciliate behind the eyes. Epimera of metathorax narrow, entirely cov- ered by the elytra; hind cox;e rounded, widely separated, not attaining the elytral margin. Ventral segments, first and second large, each as long as the metasternum, separated by a straight suture which is deeply impressed at the sides; third and fourth short, sutures straight; fifth as long as the two preceding united. Legs rather long, thighs pedunculated, not toothed ; tibiae slender, strongly hooked at tip; tarsi rather long, third joint wider, bilobed, last joint elongate, claws simple, slender, separate. Body rough with short erect bristles. TRACHODES Germ. Elytra uniformly convex without elevations: Bristles of elytra not tufted 1. ptinoides. Each elytron with two tufts of bristles 2. quadrituberculatus. Elytra with large elevations 3. horridus. 1. T. ptinoides Germ., Sp. Nov. 327; Sch. Cure, iii, 513; Mann. Bull. Mosc. 1843, 293. Alaska and Vancouver Island. I have received specimens of this species from Col. Motschulsky as his T. faaciculatus, Bull. Mosc. 1845, 2nd, 374. 2. T. quadrituberculatus Mann., Bull. Mosc. 1852, 855; Sthereus quadr. Motsch., ibid. 1845. ii, 375, Tab. vii, f. 4. Alaska. The four tubercles of the elytra seem to me not elevations but bunches of bristles; they are situated on the third interspace; the first is about one-fifth from the base, and the second a little behind the middle; the elytral striae are rather finer than in the preceding. LeConte.] TRACIIODINI. 191 3. T. horridus Mann., Bull. Mosc. 1852, 354. Alaska and Vancouver Island. The three rows of large elevations on each elytron easily distinguish this species. Tribe VII. otidoci:phal,ini. In all the preceding tribes the tarsal claws are simple, usually se]">arate and divergent, rarely connate ; in this, as in several of those which follow, they are toothed ; the tooth, however, is broad and not very prominent, giving the form tei'med appendiculate. The species are easily known from those of other tribes by the prothorax being narrowed at base, and some- what pedunculate. Several of them are shining black and glabrous, .so that they resemble in appearance ants. Mr. C. V. Riley, wlio has hatched several specimens of OtklocepJialui l;ir speci- mens in my collection. 14. C. posticatus Boh., Sch. Cure. iv. 406. Southern States; the references to Say given by Boheman, and c()i)ied in Gemminger and Harold, should be hereafter omitted, as was done in the Melsheimer Catalogue; no descripticm was ever published by Say, and the citation from the Journal of the Academy of Natural Sciences of IMiiladel- phia is erroneous. This species resembles in appearance C. 7uiso, but diftei's by the shorter and strongl}^ striate beak, the different position of the antennae; by the coarser punctuation of the prothorax, which is less suddenly narrowed and less constricted in ft'ont, and not marked with two discoidal spots of white pubescence; by the elytra having the humeri, and sides more rounded; and finally by all the thighs being strongly though not acutely toothed. The under surface is very coareely punctured, and the last ventral segment has a broad, rounded impression. The mesosternum is protuberant and per- pendicular in front, as in the species of Division II, and in the three prece- ding species. In some specimens the elytral interspaces are equally, finely carinate; in others the alternate cariniB are obsolete. 15. O. g'eminatus I Dej . Cat. 322: puncticolUs | Walsh, Proc. Bost. Soc. Nat. Hist, ix, 1863, 310. Maryland, Illinois, Kansas. Related to the next three species, but easily distinguished by the prothorax being densely and uniformly cribrate, not at all plicate; the striae of the elytra are composed of large, quadrate punc- tures, interspaces broad and fiat; the third and fifth are slightly elevated be- hind the middle; the seventh is subcarinate near the humeri, which are somewhat obliquely rounded; the pubescence is yellowish, very thin and fine, mottled with grayish bands, with a white spot at the base of the third interspace, and rows of very short bristles. Body beneath coarsely punctured; ventral segments 3-5 more finely, but not very densely punc- tured; fifth not impressed in (J^; with a shallow but well defined circular im- pression at the tip in 9 ; in the only specimen of the latter sex in my col- lection, the second ventral segment is also transversely elevated, and de- clivous behind; this, however, may be a deformity. Thighs armed with a large, obtuse tooth. Length 4.2 mm.; .17 inch. 16. C. InfectorBoh., Sch. Cure, viii, 2. 49. One specimen, New York. Of the same size, form and color, as the preceding, but with the prothorax distinctly carinate, and more coarsely sculptured; the cribrate punctures being confluent, so as to leave longitudi- nal ridges; the quadrate punctures of the elj^tral striae are more approxi- mate; the interspaces narrower and somewhat convex, and the pubescence more yellow, and not mixed with gray. The under surface is uniformly and coarsely punctured; last ventral segment not impressed. IieConte.] CRYPTORHYNCHINI. 233 17. C. cribricollis Cryptorhynchuscribr. Say, Cure. 28; ed. Lec.i, 296: Boh., Sch. Cure, iv, 446. New York, Louisiana, Texas. Also of tlie same form and size, but with the sculpture of the prothorax much coarser, so that the surface appears reticulate; the pubescence of the elytra is coarser, and the bristles longer and more numerous. The punctures of the striiB are large, quadrate and approximate, and the interspaces slightly convex. Body beneath coarsely and densely punctured, last ventral segment not impressed; thighs acutely toothed. 18. O. plagiatus, n. sp. Black, variegated with ferruginous pubescence, elytra in great part, and metasternum densely clothed with small, white scales. Beak as long as head and prothorax, stout, curved, punctured and pubescent, feebly striate. Prothorax as long as wide, rounded on the sides, narrowed, but scarcely constricted at tip, coarsely but not densely cribrate, not carinate, mottled with ferruginous and white spots. Elytra one-half wider than prothorax at base, humeri abruptly rounded, disc convex, striae composed of large punc- tures, interspaces nearly flat; an irregular humeral patch, and a very broad band about the middle, not extending to the suture, and the sides from the base to behind the middle are white; rest of the surface mottled, ferruginous and white. Metasternum white, abdomen with lateral spots of denser pubescence; under surface very sparsely^ cribrate-punctate, punctures very few on the ventral segments 1-4; fifth finely and densely punctured, with a large, shallow circular impression. Legs annulated; thighs armed with an obtuse tooth, and a feeble trace of a denticle; mesosternum not protuberant. Length 4 mm. ; .16 inch. Texas, Belfrage; one specimen. Division II. Sp. 19-21. . In this division the form is rather squat, the elytra at base being nearly twice as wide as the prothorax; the latter is coarsely sculptured, and has two crests in front of the middle, between which is a wide furrow. The beak is curved, a little longer than the head and prothorax, strongly punc- tured and striate. The alternate interspaces of the elytra are strongly cari- nated, and sometimes abruptly interrupted. The under surface is very coarsely punctured; the mesosternum horizontal and protuberant in front; the legs are annulated; the thighs armed with a large tooth and a small denticle. Three species are known to me, which may be tabulated as follows : Elytral costse entire, or nearly so 2. " " abruptly interrupted 19. tuberosus. 2. Elytra mottled, strongly costate 20. anaglypticus. " in great part white, feebly costate 21. leucophsBatus. 19. O. tuberosus, n. sp. At first sight this species resembles closely C. nenuphar, but it is smaller and stouter, and the sculpture of the prothorax is very different. Tho PROC. AMER. PHILOS. SOC. XY. 96. 3D 234: cuRCULioNrD^. [LeConte. beak is more strongly striate; the prothorax is loager than wide, slightly rounded on the sides; densely, rugosely punctured, opaque, with two acute crests running from the tip to the middle; each side are two narrow, white lines, crossed by a curved one in front of the middle. The elytral striis are composed of large, quadrate punctures, and the costae are interrupted almost exactly as in C. nenuphar; the pubescence is very fine, short and fulvous, condensed into a narrow, transverse band just behind the middle. Antennae, tibiaj and tarsi ferruginous. Length 3 mm.; .12 inch. South Carolina; Dr. Zimmermann; Illinois, Dr. Horn. There are scarcely perceptible rows of short bristles on the elytra. 20. O. anaglypticus Fahrajus, Sch. Cure, iv, 418 ; Cryptorhynchus anagl. Say, Cure. 18; ed. Lee. 282. Massachusetts to Kansas; Georgia, Texas; abundant. I have one very small specimen in which the color is concealed by a uniform dirt-colored crust; it is G. ineditus\Dei. Cat. 21. C leucophseatus Fahrajus, Sch. Cure, iv, 417. Described first from Mexico, but not rare in Texas. Allied to C. anaglypticus, but larger, (nearly 5 mm.; .20 inch), with the sculpture of the prothorax coarser, the crests more evident, and a short median carina; the elytral costse are less elevated, and the surface is in great part covered with white pubescence to within one- fourth of the tip, which is dark brown and mottled; the base for a short distance is clothed with fulvous pubescence. Division III. Sp. 22. This division contains but a single species of ordinary form, with the elytra covered in great part with very fine, short pubescence, not mixed with longer hairs, or with bristles. The beak is rather stout and slightly curved; the front coxae are contiguous, the thighs obtusely toothed, and sinuate beneath near the knee; the claws are cleft at tip, and less approxi- mate than in the next division. The antennae are inserted about one-fifth from the end of the beak. The mesosternum is not very wide; the hind part is obliquely declivous; the front part perpendicular. 22. C. fissunguis, n. sp. Dark brown, nearly black. Beak stout, as long as the head and pro- thorax, punctured, shining towards the tip, then carinate and coarsely striate. Prothorax coarsely and deeply cribrate, towards the tip with longi- tudinal ridges, the middle one of which is more distinct; scarcely longer than wide, slightly rounded on the sides, then more strongly rounded and narrowed to the apex, which is feebly constricted at the sides. Elytra one- half wider than the prothorax, base truncate, humeri prominent, nearly rec- tangular; sides parallel, then obliquely narrowed to the tip; strite composed of large, distant punctures; surface densely covered with short, yellow pubescence, which is darker on the posterior fourth; a denuded transverse band about the middle. Beneath coarsely punctured; thighs annulated with yellow pubescence. Length 5-5.5 mm.; .20-. 22 inch. Louisiana, three specimens. LeConte.] CRYPTORHYNCHINI. 235 Division IV. Sp. 23-34. This division contains small species of less robust form, easily known by the fine pubescence being mixed with long, stout, erect bristles. The beak is longer than the head and prothorax, not stout, very sliglitly curved, punctate and striate; antennae inserted one-fourth from the tip; mesos- ternum rather wide, perpendicularly declivous in front. Under surface coarsely, uniformly punctured; thighs armed with one tooth, claws cleft, the tooth being as long as tlie outer part. Elytra not costate. Front coxae contiguous as usual. Prothorax coarsely cribrate 23. erinaceus. " punctured 24. hispidus. 23. O. erinaceus, n. sp. Blackish, densely clothed with depressed mud-colored, scaly pubescence, with erect bristles intermixed, which are short on the prothorax, and long on the elj'tra. Legs, antennae and beak brown; the last named slender, slightly curved, sparsely punctured, feebly striate towards the base. Pro- thorax wider than long, slightly rounded on the sides, moderately nar- rowed in front, and feebly constricted; tolerably densely cribrate. Elytra one-third wider than prothorax, humeri prominent, abruptly rounded, striae composed of large, shallow punctures, interspaces slightly convex. Body beneath shining, sparsely pubescent, coarsely not densely cribrate; last ven- tral segment not impressed. Thighs armed with an obtuse tooth. Length 3 mm.; .13 inch. Southern States. Judging from MS. drawings made l)y my father, this is Calosternus erinacem\T)e]. Cat. 318. 24. O. hispidus, n. sp. Of the same form as tlie preceding but smaller, brown covered with cin- ereous, scaly pubescence; prothorax not wider than long, coarsely punc- tured, with the bristles not shorter than those of the elytra; elytra about one-third wider than the prothorax, rather moi'e elongate than in G. erina- ceus, striate and setose in a similar manner. Body beneath similarly punc- tured, beak, antennae and legs paler brown, femoral tooth smaller and more acute. Length 2.5 mm. ; .10 inch. One specimen, Georgia. MICRALCINUS* n. g. A species from Florida which has an" almost deceptive resemblance to Tyloderma variegatum, constitutes this genus. It is closely allied to Cono- trachelus, and has the antennal grooves confluent behind in a similar man- ner. The front coxae are also nearly in contact, but the form of body is quite difierent, the elytra are not suddenly wider than the prothorax, regu- larly oval, and emarginateatbase ; the beak is shorter, scarcely longer than the prothorax, and the claws are not toothed. The postocular lobes are as *This genus does not appear in the table of genera, as it was overlooked when the form was closed. 236 CUKCULIONID^. [LeConte. large as in ConotracTielus, and the mesoslernum is protuberant and perpen- dicular in front. 1. M. cribratus, n. sp. Black-brown, shining, sparsely pubescent, mottled on the elytra with small spots of fine gray hair, and towards the tip with patches of a brown color. Beak rather stout, scarcely as long as the prothorax, deeply grooved and punctured, head punctured. Prothorax as long as wide, rounded on the sides, narrowed in front, and feebly constricted: cribrate with large deep punctures ; with a small smooth callus at the middle. Elytra oval, emarginate at base, about one third wider than the prothorax; humeri rounded; sides slightly rounded, more obliquely towards the tip ; striae composed of large deep punctures, becoming smaller towards the tip, where the strife are somewhat impressed. Beneath strongly, not densely punc- tured. Antennse brown, second joint of funicle nearly as long as the first; thighs slender, sinuate beneath, not toothed; tibiae nearly straight, armed with a terminal hook; claws small, divergent, simple. Length 3.2 mm.; .13 inch. Capron, Florida; Messrs. Hubbard & Schwarz. RHYSSEMATUS Sch. Concerning this genus I have little to add to the excellent synoptic table and remarks published by Dr. Horn, (Proc. Am. Phil. Soc. 1873, 463) except that the diftereuces between it and Chalcodermus as stated by La- cordaire are somewhat illusive; the corbels of the hind tibiae seem in some specimens of R. Uneaticollis to be quite distinct. On the other hand, there is a great difference in the form of the claws, which in Bhyssematus are cleft as in Anthonomus, but in Chalcodermus are approximate and connate at base, almost as in Smicronyx, &c. There is also an important difference in the two outer striae of the elytra, which are separated by a costa in the first, just as in Conotrachelus, but in the latter the outer striae consists of only a few large punctures extending one-third the length from the base, and the interspace is flat. In view of the importance of these characters it becomes necessary to place Chalcodermus prtiinosus Boh., (Sch. Cure, viii, 2nd, 13) in this genus; from the other species it is easily distinguished by the less rugose punctua- tion of the prothorax. CHALCODERMUS Sch. The remarks of Dr. Horn upon the three species of this genus which re- main after removing C. pruinosus leave nothing to be added. ZAGLYPTUS n. g. The two very small species which constitute this genus resemble in form and coarseness of sculpture Bhyssematus, but differ essentially by the an- tennae and tarsi. The prothorax is also more strongly sinuate, and much more deeply margined at the base. The funiculus is rather short, with the LeConte,] CRYPTORHYKCHINI. 237 first joint stouter and elongated, the others are short, closely Connected, so as to appear indistinct, and gradually pass into the club, which is elongate oval, in one species, and elongate ovate and obtuse in the second; the number of short joints under a high power is six, and they do not differ in length, but gradually increase in thickness. The beak is as long as the head and prothorax, slightly curved, stouter in one species (sex ?) than in the other. Prothorax gradually narrowed from the base forwards, strongly constricted and tubular at tip, without postocular lobes, not emarginate be- neath ; the base is strongly sinuate and margined, scutellar lobe acute. Elytra ample, convex, a little wider than the prothorax at base, gradually nar- rowed behind from the humeri which are rather prominent. Pectoral groove shallow, antecoxal ridges very fine; prosternum prominent and fo- veate behind the front coxae which are moderately distant; mesostemum short, declivous, not prominent, middle and hind coxae widely separated. Ventral segments, first and second very large, connate, with the suture ob- literated at the middle; third and fourth short, sutures deep, nearly straight ; fifth as long as third and fourth united, rounded behind, flat. Legs rather short, slender, thighs unarmed, tibiae slightly mucronate at tip, tarsi with the third joint emarginate, not broader than the preceding; last joint as long as the others united; claws slender, divergent, not toothed. 1. Z. sulcatus, n. sp. Dark reddish brown; head and tubular constriction of prothorax smooth, beak deeply sulcate each side; prothorax very coarsely cribrate, sparsely pilose with long, erect whitish hairs. Elytra deeply sulcate, grooves punc- tured, interspaces narrow, convex, each with a row of distant, small punc- tures, from which proceed long, erect hairs; disc from base to behind the middle red. Trunk and first ventral segment with very large, sparse punc- tures. Length 1.8 mm. ; .07 inch. One specimen from Mobile, Alabama, given me by the late Col. Mot- schulsky, under the MS. naiue Nanophyes rubidus. 2. Z. striatus, n. sp. Of the same form and sculpture as the preceding, somewhat lighter in color. Beak more slender (a sexual character?), less deeply sulcate, with two or three long hairs each side near the base. Prothorax with more nu- merous erect hairs. Elytra with coarsely punctured shallow stri;T?, inter- spaces wide, flat, each with a series of long, pale, erect hairs proceeding from scarcely perceptible punctures. Length 1.8 mm.; .07 inch. One specimen, Pennsylvania; Mr. S. ^. Rathvon. The essential differ- ence between this and the preceding is in the elytral sculpture. The other characters are dependent on sex, and on better preservation of the speci- men. MICROHYUS n. g. As the preceding genus resembles Rhyssematus in miniature, so does this resemble the smaller, setose Conotracheli, but differs cliiefly in tlie funicu- lus of the antennae and the simple, divergent claws. The beak is shorter than the prothorax, nearly straight, with the antennae inserted about one- 238 CUKCUL ION-ID^. [LeConte. third from the tip. Scape scarcely reaching the eyes which are small and lateral; funiculus rather short; first joint larger and stouter, six remaining joints short, slightly increasing in thickness, closely united; club large, oval-pointed, annulated. Prothorax gradually narrowed from the base, broadly constricted near the tip, feebly rounded on the sides; postocular lobes wanting. Elytra ovate, convex, broader and sub-truncate at base, humeri prominent, gradually narrowed behind, and strongly declivous. Prosternum deeply emarginate in front, pectoral groove deep, antecoxal ridges strongly developed; front coxae moderately distant. Mesosternum declivous; middle and hind coxag widely separated; metasteruum short. Ventral segments with straight, distinct sutures; first a little longer than the second; third and fourth shorter; fifth flat, rounded behind, as long as the second. Legs slender, rather short, thighs not toothed, tibite slightly mucronate at tip; tarsi with the third joint broad, bilobed; last joint as long as the others united; claws slender, divergent, not toothed. 1. M. setiger, n. sp. Black, covered with a dirty crust, and clothed with stout bristles, erect on the prothorax, reclinate on the elytra. Head and beak rather finely punc- tured. Prothorax strongly punctured. Elytra with deep strije, interspaces somewhat convex; the alternate ones a little wider. Beneath coarsely and densely punctured. Length 2.1 mm.; .085 inch. Two specimens, Georgia. Group IL Acampti. As Camptorhmus differs from the CryiUorliyncM by the pectoral groove being confined to the prosternum, though distinctly limited behind, so is the singular insect which constitutes this group similarly separated from the Ithi/pori, by the shorter beak resting upon the front coxse. The body is elongate, as in GamptorJiinus, and the tibiae are stout, sinuate on the inner side, and strongly hooked at the tip. The other characters are pecu- liar, the tarsi are not dilated nor spongy beneath, and the club of the an- tennae is pubescent and sensitive only near the tip. These characters indicate relationships in various directions, such as the ByrsopidiM and Cossonidce, but the insect preserves unchanged all the es- sential characters of the Cryptorhynch type of Curculionidce. ACAMPTUS n. g. A very singular species of elongate form, clothed with dirt-colored hair, and short, erect bristles represents this genus . The beak is short and stout, as long as the head, and expanding grad- ually into it, so that no distinct separation appears; the antennal grooves begin about one-third from the end, and descend obliquely to the eyes, Avhich are small, lateral, and not prominent. Antennte with the scape ex- tending to the front margin of the eyes, clavate; funiculus not longer than the scape; first joint stouter and about as long as its width; remaining joints five, short, gradually increasing in width, closely connected, passing LeConte.] CRYPTOEHTNCHINI. 239 gradually into the club which is elongate, obtuse at tip, corneous at base, pubescent on the outer half. Prothorax longer than wide, gradually nar- rowed in front; broadly, but not deeply constricted in front, slightly pro- duced at the middle, postocular lobes not well marked, base feebly sinuate. Elytra a little wider than the prothorax, humeri rectangular, slightly rounded, sides parallel, rounded at tip. Prosternum deeply and broadly emargiuate in front, pectoral groove broad and deep, antecoxal ridges very prominent, front coxae very prominent, narrowly separated, supporting the end of the beak; prosternum behind the coxae not prominent; mesosternum small, middle coxae narrowly separated; hind coxae distant, metasternum with the anterior process nearly acute; hind margin broadly emarginate; ventral sutures straight; third and fourth segments short, the others longer. Legs short, stout, thighs not toothed; tibiae sinuate on the inner side> strongly armed at tip; tarsi as long as the tibias, not dilated nor spongy be- neath; last joint as long as the two preceding; claws slender, divergent, not toothed. 1. A. rigidus, n. sp. Elongate, black, covered thickly with dirty brown hair, and short, erect, stout bristles, which conceal the sculpture. Prothorax longer than wide, slightly rounded on the sides, broadly constricted near the apex, which is rounded; base feebly bisinuate; dorsal channel faint. Elytra about one- fourth wider than the prothorax, cylindrical, rounded behind ; striae composed of quadrate punctures; first, third, fifth and seventh interspaces wider, more prominent, and furnished with conspicuous rows of bristles; eighth and ninth with a few bristles; second, fourth and sixth very narrow, not pro- minent. Beneath, very coarsely punctured, covered with a dirt-colored crust, with scattered, short, coarse hairs. Length 3-4 mm.; .12-.16 inch. South Carolina to Texas, not uncommon. Judging from a MS. drawing by my ftxther, it is Botrobatys troglodytes \T)Q.i. Cat. Group III. €ryptorliyncIii. In this group the pectoral groove is distinctly limited behind. The other characters are variable, though the front coxae are never contiguous as in some Ithypori; a slight appearance of an epipleural fold exists in many species. The claws are toothed in Phyrdenus, but simple, and generally small in the other genera. The genera in our fauna are not numei'ovis, but present several categories indicating sub-gi'oups, which it is unnecessary to define at present, as their number would be increased by a careful study of exotic forms. 3ficromastus might be placed with equal propriety in Ithypori, near Arthrostenus, but for the present I prefer associating it with Acalles: the only specimen in my collection is much broken. Metathoracic epimera distinct 6. " " indistinct 2. 2. Metasternum as long as first ventral segment 5. Metasternum veiy short, humeri rounded 3. 240 CURCULION^IDJE. [LeConte. 3. Club of antennae annulated 4. " of antennae solid EURHOPTUS. 4. Claws very small, approximate ACALLES. larger, divergent MIOROMASTUS. 5. " slender, divergent PSEUDOMUS. 6. Tibiae strongly compressed 9. " slender, more or less sinuate 7. 7. Mesosternum deeply emarginate 8. feebly " TYLODERMA. 8. Claws appendiculate, divergent PHYRDENUS. " simple, divergent CRYPTORHYNCHUS. 9. Tibiae not serrate lO. " more or less serrate ZASOELIS. 10. First ventral suture deep CCELOSTERNUS. " " " sinuate, faint at the middle BAROPSIS. ACALLES Sch. The very short metasternum, with indistinct episterna, the oval elytra with rounded sides, and the small tarsal claws will enable the species of this genus to be easily recognized. The mesosternum is usually deeply excavated for about one-half its length, so that the pectoral groove ends about the anterior limit of the middle coxae; but this is not the case with^. michalis and pectoralis; the hind part of the mesosternum is protuberant, so as to make an obtuse angle with the metasternum. The distance from the middle to the hind coxte is not greater than from the middle to the front pair; the mesosternum at the side appears longer than the metasternum, a very unusual character in Coleoptera. The last two species described below are anomalous, and when studied in connection with the foreign species, will probably be considered as constituting new genera; in A. nuchalis the metathoracic side pieces are as distinct as in Cryptorhynchus; in A. pectoralis, the mesosternum is scarcely more emarginate than in Tyloderma. Mesosternum deeply emarginate 2. " broadly " 12. 2. Scales thick, erect, without intermixed bristles 3. " appressed, with bristles intermixed 7. 3. Elytra with conspicuous pale markings 4. ' ' not conspicuously marked 5. 4. Black, with large, posthumeral spot, and band be- hind the middle of elytra white 1. nobilis. Black, with sub-basal baud and a few spots white. . 2. basalis. 5. Elytra not tesselated • 6. " with brown scales, tesselated with paler 3. porosus. 6. Interspaces of elytra moderately wide 4. turbidus. " " very narrow 5. clathratus. LeOonte.j CRYPTOimVXCHlXI. 241 7. Prothorax carinate, l)rislles short 8. ' ' not carinate 9. y. Basal angles of elytra not prominent 6. carinatus. " " " well defined 7. granosus. 9. Bristles stout, clavate 10. soft, slender 8. sordidus. lU. Elytra with basal and broad posterior band of yellow scales 11- Elytra with small white spots arranged in two inter- rupted bands 9. clavatus. 11. Elytra rounded on the sides 10. crassulus. nearly parallel, form elongate 11. longulus. 12. Prothorax not channeled, occiput clothed with white scales 12. nuchalis. Prothorax channeled, head uniform brown 13. pectoralis. 1. A. nobilis, n. sp. Black, coarsely punctured, with thick, erect brown scales, which when viewed in certain directions seem like short, obtuse bristles. Beak shining, naked, punctured; head densely clothed with small pale scales, frontal fovea large. Prothorax as long as wide, much rounded on the sides, nar- rowed before and behind; punctures very deep, disc convex with a faint trace of a median carina. Elytra with rows of deep, large, but rather dis- tant oval punctures; interspaces very convex, except the two outer ones; there is a single marginal point behind the humeral angle; the white mark- ings are conspicuous, of snow-white scales, as follows: a spot on the fifth, sixth and seventh interspaces near the base, connected with two small spots on the fourth, forming a sub-humeral blotch; a band behind the middle, composed of spots on the first to the fourth interspace; and many small spots irregularly disposed, formed of three or four white scales. Legs annu- lated with brown and pale scales. Ventral segnients with a row of lateral spots of pale scales. Length 7.8 mm. ; .31 inch. Texas; Messrs. Boll and Belfrage; three specimens. Mr. Ulke has a species from Florida similar to this, but stouter, with the sides of the elytra angulated near the base. 2. A. basalis, n. sp. Similar to the preceding, but smaller and less robust. Beak more stronglj^ punctured, carinate; head covered with pale scales, extending half way upon the beak, front channeled. Protliorax with small, scattered spots of pale scales. Elytra with the suture, a transverse band at the base, enclos- ing a black humeral spot, and some scattered small spots of pale Ijrown scales; strife composed of more approximate quadrate punctures, inter- spaces except the two outer ones convex. Body beneath more coarsely and deeply punctured than in A. nobilis, and thinly clothed with pale scales, rather more dense at the sides of the ventral segments. Legs annulated. Length 5.5 mm. ; .22 inch. One specimen collected Ijj' me in Colorado. PnOC. AMBK. PHILOS. SOC. XV. 96. 2e 242 CUKCULIONID^. [J^econte. :;. A. porosus, n. sp. Similar in form to A. basalts, but larger; the beak is longer, and dis- tinctly carinate; head covered with pale scales extending upon the beak;, front channeled. Prothorax very deeply and densely punctured, finely cari- nate, irregularly clothed with brown scales. Elytra with rows of approxi- mate large quadrate punctures, the intervals between which are nearly as high as the interspaces; second, fourth and sixth interspaces wider and more convex, tesselated with spots of pale and dark brown ; rest of the sur- face with scattered pale scales. Beneath coarsely and deeply punctured, thinly clothed with pale scales; legs annulated. Length 8 mm.; .32 inch. Two specimens from Colorado; one collected l)y myself, the other in the cabinet of Dr. Horn. 4. A. turbidus, n. sp. Rather narrow, black, densely clothed with thick dirt colored scales, Beak naked, punctured, subcarinate; head densely clothed with small scales, front channeled. Prothorax deeply and densely punctured as usual, not carinate, longer than wide, narrower in front than at base; sides broadly rounded. Elytra with rows of large, approximate, quadrate punctures, in- terspaces wide, somewhat convex; markings indistinct, but when present, consisting of an irregular basal fascia, and an undulated one behind the middle, very much as in A. basalis. Under surfece deeply and coarsely punctured, thinly clothed with dirt colored scales. Length 7 mm.; .28 inch. Arizona, Dr. Horn; several specimens. Related to A. basalis, but nar- rower, and with differently colored scales. 5. A. clathratus, n. sp. Narrow, black, clothed with dirt colored scales. Beak rather stouter, punctured and subcarinate, head covered with small scales extending upon the beak, front channeled. Prothorax as in the preceding. Elytra witli rows of large, approximate, quadrate punctures, which almost overlap, so that the interspaces are very narrow and indistinct. Body beneath coarsely and deeply punctured, thinly clothed with dirt colored scales. Length 4.7 mm.; .19 inch. One specimen found by me in Colorado. Differs from the preceding by the larger punctures of the elytra, and narrower interspaces. 6. A. carinatus, n. sp. Black, densely covered with thick scales, of dark brown color; mottled (but not tesselate) with pale scales upon the elytra, forming indistinct trans- verse lines; an oblique zigzag band about the middle is the most conspic- uous of these markings. Prothorax as long as wide, sides strongly rounded, widest about the middle, much narrowed in front, broadly but not deeply constricted near the tip; disc coarsely and densely punctured, very dis- tinctly carinate. Elytra at the widest part scarcely wider than the middle of the prothorax; oval, sides rounded, basal angles not prominent; strife composed of quadrate large punctures; interspaces distinctly defined: third. j^eco^te.j CRYPTOKHYXCHINI. 243 fiftli and eighth somewiiat more convex; each interspace witli a row of very short, thiclv, inconspicuous bristles. Length 4 mm. ; .16 incli. One specimen, Illinois. Easily known by the strongly carinate prothorax. 7. A. granosus, n. sp. Rather stout, black, densely clothed with dark brown scales. Prothorax as wide as long, rounded on the sides, scarcely Avider at the middle than at the base, much narrowed in front, and broadly constricted; disc densely ])unctured, strongly carinate, marked Avith a short, transverse white line at the middle, interrupted at the dorsal line; the parts of this transverse line are nearly joined by a short, posterior dorsal Avhite line, forming a T-shaped mark; there are also a few inconspicuous dots of white pubescence. Elytra ovate, distinctly wider at the middle than the prothorax, truncate at base, with the basal angles well defined; striiE composed of large, shallow, quad- rate punctures; interspaces well detined, the alternate ones more elevated, and interrupted so as to become tuberculate; the brown scales are mottled with dots of pale scales, of which the most conspicuous form a narrow, ir- regular, transverse band about the middle; the bristles are very short, but more di>tinct than in the preceding species. Length 3.4 mm.; .13 inch. Florida, at Enterprise, Haulover and Indian River; Messrs. Hubbard and Schwarz. 8. A. sordidus, n . sp. Robust, black, clothed with a dirt colored crust concealing the sculp- ture, with intermixed slender, curved bristles pointing backwards; beak naked and punctured towards the tip, not carinate; front not channeled. Prothorax a little wider than long, rounded on the sides, obsoletely chan- neled. Elytra striate, with the interspaces slightly convex, with rows of reclinate bristles. Length 2.5 mm.; .10 inch. Texas, Belfrage; one specimen. 9. A. clavatus Say, Cure. 39; ed. Lee. i, 297: Boh., Sell. Cure, iv, 354. Enterprise, Florida; Messrs. Hubbard and Schw^arz; found also in Illi- nois. This small species is thickly clothed with brown scales, and but slightly varied in color; there are, however, two interrupted bands composed of small white spots on the elytra; the striae are composed of large, quadrate punctures; the interspaces are wide, slightly convex and furnished with rows of long, clavate bristles. The prothorax is very coarsely punctured, not carinate, and the bristles are a little shorter than upon the elytra. Length 2.5 mm. ; .10 inch. The female is stouter than the male, witii the prothorax not mucli wider at the middle, and the elytra much more rounded on the sides. I have received from Col. Motschulsky a specimen from New Orleans, which seems quite similar, except that the punctures of the elytral strise are so large that the interspaces become very narrow. I am disposed to be- lieve that this appearance is owing to partial abrasion of the scales. If, however, Avith a larger series of specimens, it should be found to bo really distinct, the name A. xcabrosus Motsch, Avill be retained for it. 244 cuRCULiuxiD^i^:. [LeConte. 10. A. crassulus, n. sp. Rather robust, black, denselj' clotliecl with dark brown scales, and er (front pair) sinuate on inner side; tarsi with third joint broad, bilobed, fourth as long as the others united; claws large, divergent, simple. Ventral sutures straight; second and fifth seg- ments equal to third and fourth united. 1. M. gracilis (Boh.), 1. c.sup. {Cryptorliynclm.s). Elongate, brown, thinly clothed with white pul)cscence, beak punctured and striate towards the base, with a narrow, smooth dorsal line. Prothorax deeply and coarsely punctured. Elytra with rows of approximate, quadrate punctures ; interspaces narrow, convex ; behind the middle on each side are two spots of white pubescence; the hinder one extending from the first to the fifth stria, the anterior one from the fourth to the sixth. Beneath coarsely and densely punctured. Length 3.6 mm. ; .15 inch. San Francisco; collected by Mr. Henry Edwards; the specimen is very imperfect. PSEUDOMUS Sch. In this genus the metasternum, though short and without distinct epis- terna is longer than in Acalles, and nearfy or quite as long as the first ven tral; the mesosternum is horizontal, continuing the plane of the metaster num, with which it is closelj' united; the emargination is deep, extending to about the middle of the coxoe. The second ventral is not longer than the third or fourth separately; the fifth is a little longer. The thighs are armed with a tooth in some species, unarmed in others; the tibite are straight, slightly mucronate at tip; tarsi with third joint broadly dilated; fourth joint of usual size; claws simple, divergent. The beak is more slender than in Acalles, and the general outline is that of Chalcodermus. 1. Ps. truncatus, n. sp. Dark brown, thinly clothed with small, brown scales; l)eak slender, as long LieConlc] CRYPTORHYNCHINI. 247 a,s the prothorax, nearly' smooth at tip, puuctured and feebly striate at base ; head punctured. Prothorax wider tiian long, narrowed from the base for- wards, sides nearly straight, convex; not densely punctured, with a median stripe and a small spot each side, smooth. Elytra with stri* composed of large, distant punctures, with an irregular basal fascia, and a large, com- mon spot behind the middle white; the latter prolonged backwards along the suture nearly to the tip. Beneath thinly clothed with yellowish scales; ventral segments 2-4 nearly smooth; fifth Avith a few large punctures; thighs obtusely toothed. Length 4.6 mm.; .18 inch. South Carolina and Georgia; Dr. Zimmermanu. I have adopted the spe- cific name given by Dejean in his Catalogue. 2. Ps. sedentarius (Say), Cure. 30 (^Gleogonus) ; ed. Lee. i, 298; Boh., Sch. Cure, iv, 267. Florida; unknown to me. Difters from the preceding bj- the unarmed thighs, and ditierently formed posterior elytral spot. TYLODERMA Say. (1831.) Analcis Sch. (1837.) In this genus the beak is rather short and stout, and the mesosternum, while very prominent, and forming a sharp edge which limits the pectoral groove, is very feebly emarginate, resembling in this respect Acalles i^ecto- ndis. From Acalles it differs evidently, besides manj^ other characters, by the more elongate form ; the very distinct postocular lobes, the prothorax prominent and rounded in front; the longer metasteruum, with distinct, though narrow side pieces. From Cvyptorhynchus it is distinguished by the form of body, the feebly emarginate mesosternum, and the 6-jointed funic- ulus, as w^ell as by the stouter beak, with more suddenly declivous anten- nal grooves. The first ventral suture is nearly obliterated. The species fall naturally into two divisions alreadj" indicated by Dr. Horn, Proc. Am. Ent. Soc. 1873, 467; the first contains the type of Tylo- derma, the second that of Analcis; I have, therefore, restored the former name to the conjoined genus. Division I. In the first division the color is not metallic; the pubescence is in distinct spots, and sometimes scaly; the abdomen is coarsely punctured, and the punctures of the elytra are large. These species resemble in appearance Mamactes, but differ very greatly in structural characters. I have nothing to add to the characters of the four species of this group, as given b}^ Dr. Horn, but to say that T. foveolatum varies greatly in size, some specimens being no larger than T. variegatum, from which it is at once distinguished by the foveate rather than punctate prothorax. 1. T. morbillosura. Anatcis morb. Lee. Pac. R. R. Expl. insects, p. 58; Horn, Proc. Am. Phil. Soc. 1873, 467. One specimen, San Francisco, California. 248 CURCULIONTDyE. [LeCoiite. 2. T. foveolatuni Say, Cure. 19; ed. Lee. i, 284. Cryptorhynchus fov.. Germ., Sch. Cure, iv, 140: Analcis fov. Horn, loc, eit. 468. New York to Texas. 3. T. variegatus. Analcis oar. Horn, Pr. Am. Phil. Soc. 1873, 408. Southern and Western States. 4. T. fragarise. Analcis frag. Riley, Report on Insects of Missouri, iii, 42, fig. 14: Horn, loc. eit. 469. Illinois and Missouri, infesting strawberry vines. 5. T. longum, n. sp. Elongate, black, densely clothed with small black scales, which make the surface opaque; mottled irregularly with white on the elytra. Beak strongly punctured. Prothorax longer than wide, widest at the middle, where the sides are strongly rounded, much narrowed in front, feebly nar- rowed behind, feebly constricted near the tip, which is broadly rounded; coarsely and confluently punctured, very finely, almost imperceptibly cari- nate. Elytra scarcely wider than the prothorax, cylindrical, elongate, l»ase truncate, humeri rectangular rounded; striae deep, composed of large ap- proximate punctures, interspaces narrow, the outer ones convex. Beneath coarsely punctured, somewhat shining; thighs obsoletely toothed. Length 3.7 mm. ; .15 inch. One specimen, Haulover, Florida; Messrs. Hubbard and Sehwarz. Very- distinct by the more elongate form, and denser sculpture; the beak is also longer and more slender, but the mesosternum, as in the other species, is- only feebly emarginate. Division II. In this division the color is metallic, the surface glabrous; the sculpture fine, or even indistinct, and the abdomen smooth, or partly so. 6. T. sereum. Bagous cereus Say, Cure. 29; ed. Lee. i, 297; Analcis (ereus Rosensch., Sch. Cure. iv. 279; Horn, Proc. Am. Phil. Soe. 1873, 460. The specimens of T. (ereii?7i as observed by Dr. Horn vary greatly in size and sculpture; in some the prothorax is nearly smooth, in others it is sparsely and coarsely punctured on the fianl^s; in others again the disc is in addition distinetlj^ punctured. With an increased series of specimens I observe that in two individuals the disc of the prothorax is deeply and sparsely punctured, and the flanks coarsely punctured; the ventral segments 1-2 are very distantly and finely punctured; the third and fourth are deeply, transversely impressed, and the front or convex part is marked Avitli a series of fine punctures; the fifth joint is sparsely but deeply punctured. Length 3.6 mm.; .14 inch. Middle and Western States. In specimens from South Carolina and Florida, of large size, the pro- thorax even on the flanks is smooth; the punctures of the elytra less regu- lar and larger, the surface somewhat rugose, and the ventral segments are smooth, the fifth is transversely concave near the tip; the metasternum is LeConte.] CRYPTORHYNCHINI. 249 iilsi) sniootli, as is not the case in any other specimens in my collection. Length 4.5 mm.; .18 inch. Two very small specimens from Georgia have the disc and flanks of the prothorax nearly smooth, and the ventral segments also smooth, except the tiftli, which is ver,y finely ]Hinctured and surrounded Ijehindby a marginal line, but not transversely impressed; the legs are brown. Length 2.3 mm. ; .09 incli. I believe that these forms indicate species which the amount of material at my disposal does not permit me to distinctly define, and which I shall therefore abstain from naming. Careful observation of their habits and collection in quantity, when possible, will enable the correctness of this view to be tested in future. One specimen from Texas, sent by Mr. Belfrage, is, however, so dificrent as to require specific recognition. 7. T. baridium, n. sp. Dull black, with a l)ronze tinge; beak strongly punctured, front not channeled, transverse impression feeble; head sparsely, finely punctured. Prothorax deeply but not densely punctured, not longer than wide, sides parallel behind, obliquely narrowed in front of the middle, scarcely con- stricted at tip. Elytra at base very little wider than the prothorax, humeri not prominent, slightly wider for a very short distance, then gradually nar- i-owed to the tip; punctures of the rows distant, obsolete behind, interspaces very finely and sparsely punctulate, with scarcely perceptible white hairs in these punctulations, and in the punctures of the rows. Mesosternum and metasternum coarsely and sparsely punctured; ventral segments sparsely but gradually moi*e deeply punctured; fifth with a rounded impression. Length 4 mm.; .16 inch. PHYRDENUS n. g. The form is precisely that of Conotrachehts anaglyptieus, but the pec- toral canal is deep and terminates in the mesosternum, which is excavated for almost its whole length, as in Cryptorhynchus; the claws are broadly appendiculate at base. The beak is as long as the prothorax, slightly compressed, gibl)ous and suddenly separated from the front at base; the antennal grooves are oblique, as in Conoti'ac7ielus; the antennte inserted one-fourth from the tip, rather slender, funicle 7-jointed; club elongate-oval, annulated. Prothorax with very large, postocular lobes, concealing the eyes in great part in repose. Eyes coarsely granulated; large, distant above. Side pieces of metathorax moderately wide, distinct; ventral sutures straight; second and fifth seg- ments a little longer than the third and fourth separately. Legs rather slender, thighs feebly clavate, not toothed ; tibiae bent at the base, slender, feebly mucronate at tip; tarsi with third joint bilobed; fourth long with divergent, appendiculate claws. 1. P. undatus, n. sp. Short and stout, blackish, densely clothed with verj' small scales forming a dense crust, of a pale brown color, varied with darker on the pi'othorax, TROC. AMER. I'HILOS. SOC. XV. 90. 2v 250 CUKCULIOXID.E. jljeOonto. base and tip of the elytra; small, erect bristles are intermixed, forming tufts on the prothorax, and rows on the elytra. Prothorax as wide as long, sides parallel for two-thirds the length, strongly narrowed in front and deeply constricted; disc uneven, deeply and broadly channeled, with four conspicuous tufts of black bristles. Elytra at base nearly twice as wide as prothorax; humeri prominent, rounded; strite not very distinct; third, fifth and seventh interspaces slightly elevated; the base and tip are dark brown, with an intermediate, very broad, slightly variegated band of pale brown ; there is also a short, pale line at the base of the third interspace. Beneutli densely punctured; punctures of first ventral segment coarser. Length 4.0 mm. : .18 inch. Missouri, (Schuster) ; Georgia, Texas, (Belfrage). This species dirters re- markably from all others known to me by the head being convex behind, and deeply concave between the eyes, so that the base of the beak appears gibbous. Judging from a MS. drawing of my father, this is Gryptorhynch>is undatus\ Dej. Cat. CRYPTORHYNCHUS 111. The species are numerous, and as ver}' properly suggested bj' Lacordaire need subdivision into several genera. The peculiar modifications of struc- ture noted by him are not represented in our founa, and the species men- tioned below seem to agree in all characters of importance. They may be divided into groups, commencing with those species which more nearly resemble in form Conotrachelus. A. Antenutc slender, second joint of fvuiicle as long as the first ; o-7 diminishing gradually in length, club indistinctly annulated. a. Elytra suddenly wider than prothorax at base ; prothorax carinate. -* Thighs straight beneath Sp. 1-3. "* Thighs sinuate near the tip Sp. 4. b. Elytra but little wider at base than the prothorax : * Prothorax strongly constricted at tip Sp. 5-8. ** Prothorax carinate, feebly constricted at tip Sp. 9. B. Antenna' stouter, funicle with joints 2-7 equal in length, gradually broader, club ver}^ distinctl}' annulated Sp. 10-11. Division A — a*. The species of this division bear a general resemblance to Conotrachelus in consequence of the elytra l)eing suddenlj' wider than the prothorax, and the humeral angles prominent, rectangular and rounded ; the sides gradually taper behind. The prothorax is strongly carinate, gradually narrowed from the base forwards, strongly constricted near the tip, with not very well-marked postocular lobes. The beak is slender, longer than the prothorax, curved, cylindrical, carinate, and striate at base. The antennae are elongate, the funicle is slender, with the second joint as long as the first, and the following gradually diminish in length and LeConte.] CRYPTORHYNCHINI. 251 become more rounded ; the club is scarcely aunulated. The legs are slender, the thighs not clavate, with a feeble indication of two small distant teeth, which become evanescent in the smaller species. The tibi* are straight, with a sudden bend, and a distinct angle in some species on the outer edge near the knee ; the third tarsal joint is broadly bilobed, and the fourth is as long as the first, rather clavate, with moderate sized divergent claws. Tlie species maj^ be tabulated as follows : Black, with an oblique white spot on each elytron : tibia' angulated at base 2. Brown, variegated ; tibise not angulated at base 3 2. Larger, thighs feebly liidentate 1. parochus. Small, thighs not toothed 2. bisignatus. 8. Prothorax and ch'tra Avith bunches of black bristles. . . 3. fuscatus. 1. O. parochus Say, Cure. 19; ed. Lee. i. 285; Cu.rculio parocJiu^ Herbst, Kiifer, vii, 55 ; tab. 99, fig. 5. Middle and Western States. Closely resembles the next species, but is readily distinguished by the greater size (0-6.5 mm.; .24-.26 inch). The two femoral teeth are small and distant. 2. C. bisignatus Say, Cure. 19; ed. Lee. i, 284; C. luctaosus Boh., Sell. Cure, iv, 146 ; ibid, viii, 1, 348 ; C. misellm Boh., ibid, iv, 120, (fide Boheman). Middle, Southern and Western States, to Texas. If the locality of the synonym last cited be correct, it is also found in Brazil. The thighs are sometimes entirely unarmed, sometimes very obsoletely bidenticulate. Length 3.5 mm.; .14 inch ; it does not seem to vary in size, but the white . mark of the elytra is sometimes very indistinct. C. ohliquefasciatus Boh., Sch. Cure, viii, 1, ' 349, is merely a more distinctly marked variety in which the oblique spot extends from the seventh to the second stria, becoming a band, and the scattered white dots are more conspicuous. One specimen is only 2.5 mm.; .10 inch long. I have three specimens from the Middle States in which the upper sur- face is clothed with brown scales, and the elytral spots are more distinct ; the humeri seem less prominent, and the form more elongate. It seems to be C pumilus Boh., Sch. Cure, iv, 122. It is probably a distinct species, but I can find no other characters upon which to separate it, than those I have mentioned. 3. C. fuscatus, n. sp. Blackish brown, clothed w'ith pale and dark -brown scales, and bunches of erect blackish bristles. Beak moderately stout, as long as the prothorax, carinate, striate and coarsely punctured at base, then naked and more finely punctured ; antennae inserted nearly at the middle of the beak, slender, club pubescent, indistinctly annulate; head punctured, vertex very finely carinate. Prothorax as wide as long, strongly narrowed from the base, rounded on the sides, constricted in front, deeply and densely punc- 252 CURCULIONID^. [LeConte. lured, carinate ; disc with three conspicuous tufts of bristles, and two smaller ones near the front margin ; others scattered singly ; scales brown, with three narrow indistinct lines of paler ; base squarely truncate each side, prolonged into a distinct angle at the scutellum, which is black. Elytra one-third wider at base than the prothorax, humeri rounded, promi- nent, sides not dilated, but parallel, and then gradually narrowed behind, clothed mostly with pale-brown scales, darker at the base and tip, and with a broad middle band sometimes indistinct; stri* fine, punctured, third, fifth and seventh interspaces more elevated ; the third and fifth appear interrupted on account of crests of erect blackish bristles ; of these there are three long ones on the third and three or four small ones on the fifth ; also a few small bunches on the second interspace. Beneath clothed with pale-brown scales, deeply and densely punctured ; thighs slender, not, or obsoletely toothed; tibiae straight, not augulated at base as in C. 2)(i)-oehii,s and bisignatxts. Length 5.5 mm. ; .22 inch. Southern and Western States. So far as the meagre description given l\v Say goes, this species agrees well with his C. obliquus, but as Bohcman and Say agree in stating that that name belongs to the species called I)}- the former C. umhrosus, I do not feel at liberty to apply it to the present one, for which I have adopted the Catalogue name of Dejean. If our founa had more representatives of this genus, I would separate this as a distinct divis- ion, differing from the pi-eceding, not only by the tibiae and stouter beak, but by the ninth elytral interspace being not elevated, and by the post ■ ocular prothoracic lobes being more prominent. Division A — a**. The single species repi'eseuting this division in our fauna is of rather large size, more elongate, and less Conotrachelus-\\V.(i than the species of the preceding division, from which it differs chiefly by the thighs being deeply sinuate beneath near the outer end, and by the two denticles being near together. The beak is stouter than in C. paroeJius, but hardly more so than in C. fuscatus, carinate and striate at base; the antenn* are inserted about two-fifths from the end; the funicle is slender; second joint as long as the first, the others gradually shorter; club not perceptibly annulated. Pro- tliorax rounded on the sides, strongly narrowed in front, and feebl}' con- stricted, postocular lobes not very distinct; base squarely truncate each side, prolonged into a distinct angle at the scutellum. Elytra one-third wider at base than the prothonjx, nearly parallel on the sides, then narrowed to the tip, humeri rounded, less prominent than in the first division; striaj com- posed of large punctures; third, fifth, and seventh interspaces slightly elevated. The ventral segments are very coarsely punctured, and the fifth in the only perfect specimen before me has a very deep circular impression, probably sexual, and indicating the (j^. The thighs are slender, with two small approximate teeth, then deeply sinuate near the tip; the tibiae are straight, and rather strongly mucronate at tip, suddenly bent at base near the knee; tarsi as in the first division. LeConte.J CRYPTORHYNCHi:Nr. 253 4. C obliquus Say, Cure. 38; ed. Lee. i, 396 CO; C. umbras us Boh., Sell. Cure, iv, 110. Middle States; our largest species. I only restore the name of Say to this insect in deference to the statement of both Say and Boheman that the two names represent the same species. My own preference would be to ignore this assertion altogether, to call No. 3 C. obliquus, and the present one iim- brosus. It seems to me to be a case of confusion of two species by Mr. Say, similar to that recorded in the genus Calosoma; when by not obsei'ving very obvious differences, he sent to Dejean under the name of C. calidum, a very distinct species afterwards described bj^ the latter as C. Sayi. A— b*. The species representing this division in our fauna are of an elongate- oval form, with the elytra at Ijase but little wider than the prothorax ; the humeral angles are obtusely rounded not very prominent; the sides are parallel, then obliquely narrowed to the tip. The prothorax is wider than long, much rounded on tlie sides, narrowed in front of the middle, and very strongly constricted, postocular lobes broad ; the disc is cariuate , the base broadly emarginate each side, with the angle in front of the scutellum very small, not prominent. Scutellum small, white. The beak is as long as the prothorax, rather stout, somewhat flattened; the antennte are inserted about the middle of the beak; funicle slender, second joint as long as the first; the others gradually diminishing, club elongate-oval, annulated. Thighs slightly clavate, armed with a single tooth, which is nearly obso- lete in the smaller species; tibis nearly straight; tarsias in the preceding divisions. The body is densely clothed with small, depressed scales, with very short, stout bristles intermixed, which in C. apiculatus become spines. Thorax with an elongate median pale spot 5. obtentus. " sides broadly pale, disc black 6. fallax. Smaller, elytra with pale transverse band 7. minutissinius. Alternate spaces of elytra with a row of spines 8. apiculatus. 0. C. obtentus. CurcuUo obt. Herbst, Kafer, vii, 38, pi. 99, fig. 8. Cri/ptorhynchus ypsilon Boh., Sch. Cure, iv, 100. Middle and Southern States; the specimen described by Herbst was evi- dently badly preserved, and the median pale line of the prothorax had dis- appeared; normally this line is wider at the middle, of a narrow lozenge- shape, and includes a dark central spot. When the front part is abraded it assumes a Y-shape. The third and fifth elytral interspaces are strongly elevated; the femoral tooth is quite distinct. Length 5.3-7.5 mm.: .10- .3 incli. 0. C. fallax, n. sp. Elongate-oval, black, covered with pale brown scales, with intermixed short bristles; disc of prothorax and large common triangular spot on elytra black. Beak strongly punctured, as long as the prothorax, flattened, scarce- 254 CUKCULIONID^. [LeC'onte. ly subcarinate, with a smooth narrow median line; antennit brown with slender funicle; club oval -acuminate, annulated. Prothorax wider than long, narrowed gradually in front, broadly rounded on the sides, strongly constricted near the tip, deeply and densely punctured ; very finely carinate behind; base rather strongly bisinuate, medial angle small, distinct; scutel- lum very small, covered with white scales. Elytra very little wider than prothorax at base, humeri rectangular, slightly rounded, not prominent, sides parallel, then obliquely narrowed to the tip; stria; composed of large, subquadrate punctures, interspaces some wiiat convex; third and fifth more elevated. Legs slender, thighs with one very small tooth; tibiae straight, outer edge angulated near the base; tarsi as in the preceding species. Length 4.3 mm. ; .17 inch. Illinois to Texas. The size of the thoracic and elytral dark space is some- what variable; it may, however, be stated in general terms, that it occupies nearly the whole of the base of the prothorax, and narrows to the apex, of Avliicli it covers the middle third; it extends on the elytra from the humeri obliquely backwards, ending on the suture about the middle; in other spec- imens there is a brown, irregular band behind it and connected with it, but this is probably produced by an abrasion of the scales. The body be- neath is densely clothed with dirt colored scales. I have adopted the name given in Dejean's Catalogue. 7. O. minutissimus, n. sp. Oval, moderately elongate, brown, varied with blackish spots, clothed with black, brown and pale scales; the latter forming an elongate basal spot on the prothorax, and a transverse band behind the middle of the elytra, angulated at the suture; short, stout, erect bristles are intermixed. Beak stout, flattened, punctured, naked from the tip to the middle (anten- nae not seen). Prothorax wider than long, narrowed gradually in front, moderately rounded on the sides, strongly constricted near the tip, not cari- nate, postocular lobes nearly obsolete; base very feebly bisinuate, median angle very obtuse, indistinct. Scutellum hardly visible. Elytra very little wider than prothorax at base; humeri rounded, not prominent; sides slightly rounded, then obliquely narrowed to the tip; striaj composed of large punctures, which are concealed by the scales, so that the striai appear to be fine and impressed. Thighs unarmed; tibiae straight; outer edge an- gulated near the l)ase; tarsi as in the preceding species. Body beneath deeply and densely punctured; clothed wulh dirt colored scales. Length 2.5 mm. ; .10 inch. Virginia to Louisiana. I have adopted the Catalogue name of Dejean for tliis very pretty little species. Col. Molschulsky gave me two individuals as his Acalles pictus and fasciculatus, but I believe that the names were never published. In generic characters this species difiers greatly from Acalles, though somewiiat resembling A. clavatus in size and form. 8. O. apiculatus GylL, Sch. Cure, iv, 121. Florida; Messrs. Hubbard and Schwarz. Very distinct by the prothorax suddenly and strongly constricted near the tip, and by the erect, stout LeConte.J CRYPTOHHYNCHINI. 255 bristles, or spines which are sparsely placed upon the prothorax, and upon the alternate interspaces of the elytra. Length 3.7 mm.; .15 incii. A— b**. The body is elongate-oval, as in the last division, from which this diflers chiefly by the prothorax being feebly constricted near the tip. The beak is more slender towards the tip, and not flattened, about as long as the prothorax and moderately curved ; the antennae are less slender, though the second joint of the funicle is as long as the first; the club is oval, an- nulated. Prothorax wider than long, narrowed in front from the base, moderately rounded on the sides, feebly constricted near the tip, with dis- tinct postocular lobes; disc strongly carinate; base truncate each side: middle lobe acute, very distinct; scutellum indistinct. Elytra very little wider than the prothorax at base; humeri rounded, not very prominent: sides subsinuate, then narrowetl to the tip; alternate intervals feebly con- vex, with tufts of erect bristles. Thighs sinuate beneath near the tip, armed with two distinct teeth; tibise slightly curved; very distinctly mucro- nate; tarsi as in most of the other species. 9. O. tristis, n. sp. Elongate-oval, densely clothed with dark gray scales, with intermixed short erect bristles, which on the elytra are arranged in tufts upon the al- ternate interspaces. Beak more slender at tip, punctured. Prothorax deeply and densely punctured, strongly carinate, formed as above described. Elytra indistinctly variegated on the ground color, tufts of bristles darker. Beneath clothed with dirt colored scales, densely punctured. Length 5 mm ; .20 inch. Middle and Western States. I have adopted Dejean's name for this species. B. The species of this division diftfer from all those above mentioned by the elytra more oblong in form, and by the joints of the funicle of the an- tennae 3-7 being equal in length, and gradually wider; the second joint is either nearly as long as the first {oblongus), or very distinctly shorter; the club is small, rounded-oval, distinctly annulated. The prothorax is rounded on the sides, a little wider than long, narrowed in front, not strongly con- stricted, with the postocular lobes feeble; the disc is not carinate. Scu- tellum variable; elytra wider at base than the prothorax, with the humeri rounded, not prominent, sides parallel, then obliquely rounded to the tip: interspaces somewhat convex, nearly equal. Legs slender, thighs armed with a distinct tooth in one species, which is obsolete in the other; tibia:- nearly straight. Second joint of funicle scarcely shorter than first; body mottled with gray and brown scales 10, oblongus. Second joint of funicle much shorter than first; elytra with alternate interspaces tessellated 11. ferratus. 256 CURCU LEONIDS. [LeConte. 10. C. oblongus, n. sp. Oblong elongate, black, thickly clothed with l)rown and gray scales irregu- larly intermixed; back of head, and some indistinct lines upon prothorax pale. Beak as long as prothorax, rather more slender than usual, naked, dark-brown, punctured. Antennoe brown; second joint of funicle nearly as long as the tirst, 3-7 equal in length, gradually broader and rounded. Prothorax wider than long, deeply and densely punctured, not carinate, narrowed from the base, rounded on the sides, moderately constricted near the tip, base each side truncate, median lobe distinct. Scutellum very distinct, clothed with brown scales. Elytra one-fourth wdder than the prothorax, Immeri rounded, not prominent; sides parallel, scarcely per- ceptibly sinuate, then obliquely rounded to the tip; strife composed of ap- proximate punctures, fifth with a narrow blackish spot behind the middle, interspaces convex, equal. Thighs with a distinct obtuse tooth, and front pair with an additional small denticle ; beneath coarsely and densely punc- tured, thinly clothed with large, pale scales. Length 6 mm. ; .23 inch. Georgia and Texas, two specimens. There are no bristles intermixed with the scales. 11. C. ferratus Say, Cure. 28: ed. Lee. i. 290; Boh., Sch. Cure. iv. 148. Middle, Southern and Western States. Easily known by the small size, stout funicle, and alternate elytral interspaces ornamented with pale spots. The scales are intermixed with very short bristles. Say has des- cribed the elytra as striate, without punctures, but the description of Boh- eman is quite correct; the stria; are as strongly punctured as is usual in the genus, and when the scales are removed, are seen to be quite deep, with convex interspaces. Length 3.3 mm. ; .125 inch. ZASCELIS n. g. The species of this genus are rather elongate and depressed, coarsely sculptured, pubescent, and sometimes also scaly. The beak is long, slen- der, slightly curved, cylindrical, and extends almost to the metasternum. The antennae vary with the species, the club being sericeous, elongate in one species, and scarcely annulated, while in the others it is oval and an- nulated. The ventral sutures are deep, and the first is slightly sinuate; the first ventral segment is longer than the second, which is equal to the third; fourth and fifth are also equal in length. The mesosternum is elongate, and deeply excavated almost to the base. The thighs are rather stout, armed beneath with a small tooth, tibit? broad, compressed, with a row of teeth along the outer margin of the middle and hind pairs, which becomes indistinct in some species. This genus seems to be allied to Cnemnrrjus and Enteles, but differs (ac- cording to description) by the toothed tibi«; this character is an extremely rare one in CurcuUonida', and I find it mentioned by Lacordaire only in one instance: in Cne?nidop7io)'us which is allied to Magdalis. The species may be distinguished as folio w^s: LeCoiite.] CKYPTORHYNCHINI. 257 A. Pubescence long, not mixed with scales: Tibiae very coarsely toothed 1. serripes. B. Pubescence shorter: tibise feebly toothed: Pubescence erect, intermixed with large scales. . 2. squamigera. Pubescence prostrate, squamiform 3. irrorata. 1. Z. serripes, n. sp. Oblong oval, black, clothed with coarse, erect, brown hairs; beak densely punctured, substriate near the base, frontal puncture distinct; head punc- tured. Prothorax wider than long, narrowed in front from the middle, rounded on the sides, scarcely constricted at tip, whicli is nearly truncate, postocular lobes feeble; disc densely and coarsely punctured, obsoletely carinate. Scutellum verj^ small. Elytra but little wider than the protho- rax, truncate at base, rounded behind the humeri, which are closely ap- plied to the base of the prothorax; stride deep, coarsely and distinctly punc- tured, interspaces narrow convex, sparsel}' punctured. Beneath coarsely punctured, tibiae with a fringe of marginal bristles, and 5-7 large, promi- nent teeth; front tibife obtusely bidentate near the tip; apical hook distinct. Length 6 mm. ; .23 inch. Cape San Lucas, Lower California; Mr. Xantus. The pubescence is very like that of Oymnetron teter, but rather coarser. The funicle of the an- tennae is slender; joints 1-2 equal in length, club small, oval-acuminate and annulated. 2. Z. squamigera, n. sp. Larger and of the same form as the preceding, with the punctures coarser; the pubescence shorter, and intermixed with oval yellowish scales. Beak densely punctured, not striate at base. Prothorax more rounded on the. sides, slightly narrowed behind the middle, finely carinate; elytra with the interspaces slightly carinate. Tibiis finely serrate. Length 7.7 mm. ; .30 inch . One male. Cape San Lucas; Mr. Xantus. The funicle of the antennae is slender, the club elongate, scarcely annulated; this form of club is proba- bly a sexual character. 3. Z. irrorata, n. sp. Elongate, black, pubescence fine, sparse, prostrate, subsquamiform and collected in spots on the elytra. Beak densely punctured, substriate at base, frontal puncture distinct, head punctured. Prothorax not wider than long, sides parallel behind, rounded and obliquely narrowed before the middle, scarcely constricted at tip, densely and coarsely punctured, with aver}' nar- row, smooth dorsal line. Elytra but little wider than the prothorax, rounded just behind the humeri, then nearly parallel on the sides; striae composed of large approximate quadrate punctures, interspaces narrow, punctured. Thighs armed with a small tooth; middle and hind tibiae feebly serrate, obtusely bidentate near the tip. Body beneath coarsely punctured, sparsely clothed with pale brown scale-like hairs. Length ."";-(>. 5 mm.; .20-. 25 inch. PKOC. AMER. PHILOS. SOC. XV. 96. 2g 258 CURCULIONID^. [LeConte, California, Nevada, and Colorado. In the specimens I have seen, the funicle of the antennas is less slender than in the two precading species;, the club is oval-acuminate, small, and feebly annulated. The legs are much less coarsely punctured than in the other two species. COELOSTERNUS 8ch. In order to avoid unnecessary multiplication of genera in a series as yet so imperfectlj^ systematized, I refer to this genus a single species from Lower California, which is allied to Zascelis, but has the beak stoutei' and less elongated, the funicle of the antennae stouter, the club small, oval-acuminate, and annulated. The legs are stouter, the thighs armed with an acute tooth, the tibiae compressed, not serrate, furnished on the outer margin with a row of stitl' bristles from the middle to the tip, and and rather stronglj^ unguiculate at the inner apical angle. The second ventral segment is a little longer than the third, but not very obviously so. 1. C. hispidulus, n. sp. Elongate, black, clothed with short, erect brown hairs; head and beak densely punctured, the latter feebly carinate towards the base. Protho- rax a little longer than wide, broadly and regularly rounded on the sides, more narrowed in front than at base, diec rather flattened, coarsely and densely punctured, with an obsolete smooth dorsal line. Elj'tra elongate-oval, a little wider than the prothorax, striae wide, irregularly coarsely punctured, four inner interspaces on each narrow, elevated, the- others indistinct. Body beneath and legs very coarsely punctured. Length 5.5 mm.; .215 inch. One specimen, Cape San Lucas, Mr. Xantus. A little more elongate tlian Zascelis irrorata, and quite easily recognized by the characters abo-\'e given. The eyes are widely separated, and in repose are almost con- cealed. BAROPSIS n.g. The single species for which I propose this generic name, agrees with the two preceding genera in most characters, but diffei's essentially in the first ventral suture being more distinctly sinuate, and nearly obliterated at the middle, and the second ventral segment as long as the two follow- ing united. The beak is nearly as stout as in Tyloderma, and the eyes are approximate above; the funicle of the antennae is slender, 7-jointed, the second joint as long as the first; the following are shorter, but not much thickened ; club small, oval-acuminate, annulated. Legs not very stout, thighs feebly clavate, armed with a small acute tooth ; tibiae moderatel}' com- pressed, not as wide as in the two preceding genera, not toothed, terminal hook small; there is a fringe of hair on the outer margin towards the X\\), as in Ccdosternus. The general appearance is that of Tyloderma, but the sculpture resem- bles that of several species of Baris. It is closely related to the Mexican LeConte.] ZYGOPINI. 259 Mcemactes, but differs by tlic tirst ventral suture Ijeing sinuate, and less distinct at the middle. 1. B. cribratus, n. sp. Black, rather shining, with very sparse and fine pubescence proceeding from the punctures. Beak as long as the prothorax, stout, not densely punctured, punctures becoming larger towards the base; head sparsely punctured. Prothora.x; oval, longer than wide, broadly rounded on the sides, a little narrower at tip than base, and scarcely constricted, rather flattened, very coarsely and not densely punctured. Elytra elongate-oval, numeri acute, slightly prominent forwards; striae broad and deep, catenate with large quadrate punctures, interspaces as wide as the strise, with a row of distinct distant punctures. Beneath very coarsely and distantly punctured, punctures of the 3-5th ventral segments smaller. Length 4 mm. ; .16 inch. Kansas and Texas; two specimens. A very distinct and easily recog- nized species. Tribe XVI. ZTVOPIDil. The form of these insects is quite peculiar; the body is elongate, sub- rhomboidal, the first and second ventral segments long, the remaining ones short, rarely horizontal, as in the preceding genera, but forming an obliquely ascending surface. The pygidium is concealed by the elytra in our species, but is visible in some foreign genera. The eyes are large, and not concealed, even when the head is deflexed; they are closely approxi- mate on the front, but widely distant beneath and finely granulated. The 1)eak is long and slender, only slightly curved, and is received in a deep' prosternal canal, which in some species does not extend upon the meso- sternum, so that the end of the beak is free, as in Conotrachelus; even when, as in others, the mesosternum is excavated, the canal is open and not sharply limited behind. Legs slender, front cox* elongated, and pro- longed into a point on the inner side, claws simple, divergent. Our species are of small size, and represent three genera: Mesosternum declivous 2. excavated PIAZURUS. 2. Ventral surface obliquely ascending OOPTURUS. nearly horizontal ACOPTUS. PIAZURUS Sch. I refer to this genus three small species which ditter from Copturus not only by the excavated mesosternum, but by the thighs being armed be- neath with a small but distinct tooth. The scales are smaller than in Cop- turus, and some of them are elongate. Tiie elytra in well preserved spe- cimens are marked with a sutural common white si)ot behind the middle, though in P. suhfuaciatus this spot is mucli less conspicuous. 260 CURCULIOXID^. [LeConte. Protliorax about as long as wide; elytral white spot conspicuous ; Elytra but little wider than protliorax 1. californicus. Elytra much wider than protliorax 2. oculatus. Protliorax conspicuously wider than long. Elytra xnucli wider than protliorax 3. subfasciatus. 1 . P. californicus, n. sp. Elongate-oval, black, above irregularly clothed with narrow fulvous scales, mixed at the sides of the protliorax with white; scutellum black; ■elytra with a common sutural spot behind the middle, extending to the "secoiKl stria, and a few scattered dots white. Beak rather stout, finely punctured, feebly carinate near the base; front very narrow; eyes bordered behin-d with pale scales. Protliorax not wider than long, gradually nar- rowed from base to tip, sides straight; disc coarsely densely punctured, dis- tinctly carinate. Elytra very little wider than the protliorax, elongate, humeri oblique, striae well impressed, interspaces flat, finely punctured. Beneath clothed with dirty gray scales; thighs distinctly toothed, hind pair with a black ring; tibiai with a small terminal hook; ungues very small. Length 3 mm. ; . 13 inch. Calaveras, California; Mr. Crotch. More elongate than the other two species, and resembling in form Copturus operculatu», though smaller. 2. P. oculatus. Cryptorhynchus ocul. Say, Journ. Ac. Nat. Sc. iii, 308; ed. lee. ii, 173; Copturus nanus\ Dej. Cat. Southern and Western States. The sutural white spot is small and ex- tends only to the first stria. The upper surface is thinly clothed with ful- vous hair-like scales, and only slightly mottled. The protliorax is nearly as long as wide, slightl}^ rounded on the sides. The elj'tra are suddenly one-third wider than the protliorax and narrowed behind. Length 3 mm. ; -.13 inch. •3. P. suMasciatus, n. sp. Ratlier stout in form, black, thinly and irregularly clothed with fine white hair-like scales, forming transverse bands on the elytra; the white spot is therefore not A^ery conspicuous. Beak brown, outer half nearly smooth, base punctured and striate; antennae testaceous, front very narrow. Pro- thorax about twice as wide as long, narrowed gradually from the base, sides feebly rounded behind, and very slightly sinuate near the tip; very coarsely and densely punctured, not carinate; the white scales are thinly placed, and form three broad vittse. Elytra near the base about one-third Tvider than the protliorax, humeri more rounded and less prominent than in P. ocularis; narrowed Ijehind, stri* wide, deep, punctured, interspaces narrow, with lines of white pubescence, so interrupted as to produce three transverse bands; one basal, surrounding a humeral dark spot, one behind the middle, and one near the tip; these bands are also connected along the suture, and at other places. Beneath thinly clothed with gray scales. LeConte.] ZYGOPIiN^I. 261 thighs acutely toothed, liind pair with an indistinct dark band. Length 1.7 mm.; .07 inch. New York, one specimen; Mr. Guex. A peculiar species, somewhat suggestive of Ceutorhynchus. The elytral strise are so wide and deep, that tlie pattern which is formed by white hairs on the interspaces seems to he made up of sets of very fine wliite lines. OOPTURUS Sch. The species belonging to our tauna are small and elongate, witli the elytra only a little wider than the prothorax. They differ from the typical species of tropical America by the femoi'a being not armed with a tooth. We have seen already in many genera that this character is quite unim- portant, and I consider it unworthy of even subgeneric distinction. Our species may be thus tabulated: Second joint of funicle longer than third 2. " not " •' lO. 2. Front moderately narrow 3. ' ' very narrow, linear 9. 8. Mottling of upper surface not very distinct 4- " " " very conspicuous 5; 4. Larger, less densely clothed with scales 1. operculatus. Smaller, more " " " " 2, nanulus. 5. Elytra with white markings 6. " each with a large dark spot 7. binotatus. (5. Prothorax coarsely punctured 7. ' ' finely punctured 6. longulus. 7. Body more slender 8, Body rather stout; each elytron with a conical pro- cess at tip ; 3. mammillatus. 8. Protliorax less narrowed in front 4. adspersus.* " less elongate, more suddenly narrowed in front 5. quercus. 9. Elytra with fulvous scales and an oblique, dark, curved band 8. lunatus. 10. Very small, elytra In-own with white markings 9. minutus. 1. O. operculatus Gyll., Sch. Cure, iv, 648 ; Cryptorhynchus opevc. Say, Journ. Ac. Nat. Sc. Pliila. iii, 308; ed. Lee. ii, 172. Western and Southern States. Tlie typical form is of larger size (4 mm. ; .10 inch) than our other species, with the scales not very dense upon the elytra, so that the striae are plainly seen; the spo's of paler scales are few, and not conspicuous. 2. C. nanulus, n. sp. This species agrees with tlie preceding in form, color and sculpture, but is very much smaller, the prothorax seems a little more elongate, and the * I have some doubts as to the specific difference between C. quercus and ad- spersus. but for the present it seems more prudent to consider them as dis- tinct. 262 CUKCULIOXID^. [Le(.'onte. sides are slightly rounded near the base; the scales of the elj'tra are com- paratively larger and denser., and there is no distinct pattern of paler spots. Length 2.3 mm. ; .09 inch. Georgia, Illinois and Texas. The paler scales in well-preserved individ- uals are condensed so as to give the appearance of three vittse on the pro- thorax, and to leave two faint dark clouds on each elytron, one about the middle, the other near the tip, separated l)y a sutural line and limited l)y pale bands. 3. C mammillatus, n. sp. As large as the largest specimens of C. operculatus, but distinctly broader; black, clothed with large oval scales of a light and dark brown color. Beak densely punctui'ed, subcarinate; front half as wide as the beak. Prothorax not wider than long, sides feebly rounded, narrowed near the \i\), and rather strongly constricted; coarsely and densely punctured, with a large subquadrate spot of white scales at the hind angles. Elytra slightly rounded on the sides, suddenlj- sinuate near the tip, and then broadly rounded; the tips are separately thickened and produced into a stout, conical, ascending process; the striae are punctured as usual, and the interspaces feebly con- vex; the color is mottled, pale and dark brown and white. Beneath the metaslernum and first and second ventral segments are covered with pale scales, the rest darker; second ventral with two tubercles near the posterior margin, about as distant from each other as from the side. Length 4.1 mm.; .16 inch. Southern California; one specimen collected by Mr. Hardy, and kindly given me by Dr. David Sharp. The white spots of the elytra are as fol- lows : a small dot at the base of the sixth interspace; a transverse spot on the second and third interspaces, one-fourth from the base; immediately behind this spot is a large, dark space; a smaller transverse spot behind the middle; a large lateral spot opposite the first ventral segment, and an adjoining small spot on the seventh interspace; the apical edge is also clothed with whitish scales. 4. C adspersus, n. sp. Elongate, black, beneath densely clothed with dirty Miiite scales, above with ochreous scales, varied with dark brown and white spots. Head and front as in G. operculatus; antenn* pale testaceous, second joint of funicle longer than the third. Prothorax longer than wide, narrowed and feebly constricted near the tip; surface coarsely and densely punctured, scales large, rounded, concealing the punctures, the white spots are three at the base and three at the tip, indicating thus three, more or less interrupted white vittse. Elytra Avith well marked punctured strife, and flat inter spaces; white marks conspicuous, indicating an annular basal mark, com- posed of small spots, then a long sutural line, and two oblique, interrupted bands behind the middle. Hind thighs with an indistinct band. Length 3.3 mm.; .13 inch. Texas; four specimens. The scales are as large as in C. operculatus. ]iC< 'ontC'.J zYCiOPiNi. 263 A specimen from Owen's Valley, Calitorniii (Dr. Horn), is much less con- spicuously colored. 5. C. quercus Gyll., Sch. Cure, iv, 650; Zygops querelas Say, Cure. 20; ed. Lee. i, 286. Middle States; two specimens. The antennae in this species are dark or piceous; the scales are smaller than in C. operculatus. The prothorax is less elongate, and is rather suddenly narrowed near the tip; it is coarsely punctured and marked with three white basal spots, the side ones being larger. The elytral pattern seems to l)e the same as in C. adspersus, but is partly abraded in m}' specimens, and it apparently difl'ers from that species chietly by the darker antenuse and less elongate prothorax. '). C. longulus, n. sp. Elongate, brown, beneath densely clothed with white scales, head and base of beak also densely clothed with white scales; front narrower than in C. operculatus; beak rather stout, black, nearly smooth; antenme pale testaceous, second joint of funicle longer than third. Prothorax evi- dently longer than wide, scarcely narrowed in front, feebly constricted near the tip, rather finely granulato-punctate, with three small basal, and two discoidal spots of white scales. Elytra densely clothed with In'own scales and a pattern of white markings, consisting of an irregular oblique band from the humerus to the middle, and a less oblique one behind the middle, united with the former at the suture; there are also scattered dots of white scales. Legs banded and speckled Avith brown. Length 2.3 mm., .09 inch. California (Geysers), and Utah ; Canada, Pettit. The scales of this are much smaller than in the preceding and following species. 7, O. binotatus, n. sp. Black, densely clothed with dark gray scales, which are small on the prothorax, and large on the elytra, upon each of which is a very large sub- quadrate, blackish brown spot. Head and base of beak clothed with scales; beak and antenna? black; front narrower than in C. operculatus. Protho- rax scarcely longer than wide, slightly narrowed in front, verj- feebly con- stricted near the lip, densely and deeply punctured, punctures concealed by small rounded gray scales. Elytra with deep punctured striae and some- what convex interspaces, densely covered with larger rounded gray scales; each with a large spot, covered with dark brown scales, occupying nearly the middle third of the surface, and extending from the first or second stria to the eighth. Length 2.5 mm.; .10 inch. Pennsylvania and Texas; two specimens. H. C lunatus, n. sp. Blackish brown, head and base of beak clothed with white, hair-like scales, beak more slender than usual, smooth, front very narrow, linear; antennae nearly l)lack, second joint of funicle longer than third. Prothorax longer than wide, slightly and gradually narrowed in front, sides scarcely rounded; 264 CUKCULIOXID^E. [LeConte. coarsely and densely punctured, clothed with large brown scales, and sprinkled with paler, with two large basal spots of dirty white. Elytra with deep punctured striae, clothed with yellow and gray scales, with a curved band, extending from the humeri to behind the middle, then curv- ing forwards and meeting the suture at the middle, thus forming on each an oblique lunule of dark brown. Beneath densely clothed with large, yellowish and grayish scales, legs slightly speckled with dark; thighs as in the other species, unarmed. Length 2..j mm.; .10 inch. California; one specimen, collected by W. H. Pease, probably at San Francisco. 9. O. minutus. Eccoptus minutus Lee, Ann. Lye. Nat. New York, i,. 171, pi. 11, fig. 8. Easily known by the small size and difierent style of coloration, which is Avell represented in the figure given by my father, as above cited. The beak, antennae, legs and elytra are reddish brown, the latter with deep striae, and lines of white narrow scales, forming a broad basal band, an oblique band behind the middle, and a narrow apical margin; the suture is also white, but interrupted about the middle. Beneath and legs rather thinly clothed with narrow white scales. The head and prothorax are darker than the elytra, the latter is deeply punctured, with a lateral vitta and a small ante-scutellar spot of white scales. The eyes are very large, the front extremely narrow. Length 2 mm. ; .08 inch. Southern States. Difl'ers from all the preceding by the second join! of the funicle of the antennae not longer then the third. AOOPTUS n. g. This genus differs from Copiunis 1)y the ventral surface being nearly horizontal, the segments much less unequal, and the sutures nearly straight, as in Zygops. It is essentially difl^erent from that genus by only the first joint of the funicle of the antennse being elongated, and by the pygidium being covered by the elytra. The mesosternum is long, flat, and slightly declivous. The second, third and fourth ventral segments are nearly equal, and the fifth is sliglitly longer, and broadly impressed in the specimen examined. 1. A. suturalis, n. sp. Elongate, subcylindrical, black, sprinkled with small whitish scales,, forming two very indefinite bands upon the elytra. Beak as long as the prothorax, cylindrical, curved, punctured, slightly carinate l^ehind, without scales, except at the base; eyes very large, front extremely narrow, linear; head clothed with scales. Prothorax wider than long, slightly rounded on the sides, narrowed in front, where it is broadly constricted; densely punc- tured; dorsal line elevated, reaching neither base nor tip. Elytra a little wider than the prothorax, impressed near the base; striae deep, interspaces flat, densely punctured; scales scattered, more condensed in two transverse bands, in front and behind the middle; scutellum and sutural line as far as LeConte.J TACHYGONINI. 265 one-fourth the length, densely clothed with while scales; legs slender, sparsely clothed with scales; thighs feebly toothed, the hind pair more distinctly; antennae black, rather stout, first joint only of funicle elongated. Length 3.8 mm. ; .15 inch. New York; several specimens in Mr. Dike's collection, of which he hat- kindly given me one. Tribe XVII. xAt'HYGO^flNi. This tribe contains a few small species, which in form and characters are among the strangest insects of the family. The body is broadly ovate, rather depressed above, and ornamented with tufts of hair; the prothorax is com- paratively small, much narrowed in front. The head is small, the eyes large, and the front very narrow, as in Zygopini; the beak is rather short and stout, as in certain CeutorhyncJdni, and retracted upon the prosteruum. but the antennae are straight, inserted near the base of the beak, not genicu- late, and the first joint (scape), is no longer than the second; this is followed by five short joints, gradually increasing in width; the club is elongate-oval, distinctly annulated. The front coxae are sub-conical, prominent and widely separated, so as to leave a space in which the beak rests when retracted. The middle coxae are about three times more separated than the front coxtv. and the mesosternum is very short, transverse, and perpendicular to the general surface of the metasternum, which is still wider. The side pieces of the mesosternum are large and distinct, those of the metasternum are narrow. The hind coxae are oval, more widely separated than in any other tribe known to me, and near the side margin of the elytra. The first and second ventral segments are very large and connate; the third and fourth very short; the fifth is nearly as long as the second, rounded behind. The pygidium is exposed, and suddenly declivous at tip, presenting the ap- pearance of an anal segment in both sexes. The front and middle legs are slender and moderate in length, the tibiae armed with a terminal hook; the third joint of the tarsi is very widely dilated, the fourth joint as long as the first, with divaricate and appendiculate ungues. The hind legs are much longer and stouter, so as to clasp the leaves upon which the insect rests. The geographical distribution is remarkable; a few species of Tacliygomis in America; one species of Dinorhopala in Birmah. This feet, and the extraordinary characters aliove detailed, indicate the preservation of an an- cient form, which, although having the affinities I have mentioned, is equally out of place in any position in a linear arrangement. TAOHYGONUS Sch. The characters of this genus are sufficiently exposed in the description of the tribe. Our species are four, which may be thus distinguished: A. Hind thighs armed with several long, acute spinules or teeth; hind tib- iae flattened and curved, feebly toothed on outer margin. PROC. AMEB. PHILOS. SOC. XV. 96. 2h 266 CURCULIONID.^. [LeConte. Pubescence gray-brown and black, tufted 1. Lecontei. B. Hind thighs less strongly toothed, hind tibiae slender. Black, thinly pubescent with stitf, erect hair; a white sutural spot near the middle 2. centralis. Pale brown, varied with dusky, elytra with four black spots, pubescent with erect hair, and with a central white sutural spot; hind legs dark 3. tardipes. Smaller, brown, varied with dusky; elytra with a more elongate white sutural spot ; hind legs brown 4. fulvipes. 1. T. Lecontei Gyll., Sch. Cure, i, 312; Sturm, Cat. 1843, 352; pi. G, f. 1; Zimm., Germ. Zehschr. ii, 455, (habits); T. horridus Chew-, Guer. Icon. Regne An. 155, pi. 38, f. 9. Maryland, southward to Texas; found on the leaves of j'oung oaks, on the under surface of which the insect sits, and falls to the ground when approached, as observed by Zimmermann. The hind legs, though long and powerful, are not saltatorial, as, indeed, is evident from their form and position; but being widely separated, and capable of lateral exten- sion, they give to the insect a grasping power which is very great in proportion to its small size. The curious movements in which, when about to alight it turns itself back downwards, and seizes the leaf with the elongated curved hind legs, are very well described by Zimmer- mann, in the passage above cited. 2. T. centralis Lee, Trans. Am. Ent. Soc. ii, 55. Raton Mountain, Colorado, on Bhus aromaticum. The hind thighs are rather serrulate than toothed, the hind tibitB are straight, not flat- tened. The color is uniform black, the elytral stria? are somewhat con fused, and the white spot is verj' small. 3. T. tardipes, n. sp. Pale brown, head, middle of prothorax, liody beneath, hind legs in part, scutellum, and four large spots on the elj'tra, blackish. Body above thinly clothed with long, erect, gray hairs; prothorax not densely punc- tured, with a tuft of tine, soft, whitish hair at the basal angles. Elytra with rows of deep subquadrate punctures, interspaces narrow convex; with an angulated sutural spot in front of the middle, of soft, white hair, and a few scattered small tufts of the same; each elytron with a large, dusky spot on the humerus, and a smaller round one near the tip. Be- neath strongly punctured, pubescent with erect hair, sides of trunk with a line of soft, whitish hair. Length 2.3 mm. ; .09 inch. Texas; one specimen given me by Mr. W. Jiilich; one also in the col- lection of Dr. Horn. The hind thighs are blackish, finely subserrate be- neath; the hind tibia? are longer than the tarsi, pale towards the tip, not flattened, slightly curved, finely subserrate on the outer side; tarsi brown. 4. T, fulvipes, n. sp. Brown, feet uniform reddish testaceous. Body above thinly clothed LeConte.l CEUTORHYNCHINI. 267 with long, erect, gray hairs; prothorax sparsely and coarsely punctured, with a tuft of white hair at the basal angles. Elytra with regular stria^ composed of large punctures; interspaces narrower than in T. tardives; an elongate sutural spot of wliite hair in front of the middle. Hind thighs with about four small teeth on the under side; hind tibiae comparatively sliorter than in T. tardipes, not serrate on the outer edge. Length 1.8 mm. ; .07 inch. Illinois; Dr. Horn. Smaller than the smallest T. centralis, with the I'ows of elytral punctures more regular, and the white spot more elon- gated. Tribe XVIII. CEUTOKHYKfCHIXl. This numerous tribe consists of small species of broad form, with the beak and pectoral groove varying according to genus. They are distin- guished from all the preceding tribes Avith distant front coxfe, by the pygidium being perpendicularly detlexed, and marked with a deep excava- tion (Mononychus), or with a continuation of the acute lateral margin of the ventral segments, against which the apical margin of the elytra rests. In the latter case, the upper part of the dorsal segment is finely carinate; in both cases, the anal segment of the (^ extends in front of the excavation or transverse line. In all the genera the coriaceous sutural margin of the left elytron is much wider than in any genera of tlie Cryptorhynchoid series, including Zygopird. The antenna' are geniculate as usual, inserted about the middle of tlie beak; the funicle is 6-7-jointed, and the club oval-pointed, pubescent and annulated. The side pieces of the mesostcrnum are usually visible from above. They may be divided into four groups, the first of which indicates more properly a sub-tribe. A. Pygidium without transverse line for reception of tij) of elytra; pectoral groove extending upon the metasternum ... Mononycbi. B. Pygidium with line for reception of tip of elytra, and carinate in front of the line: Pectoral groove, extending behind the prosternum. . Coellodes. Pectoral groove anterior, sometimes eflfaced. Beak long and slender €eutorbyiiobi. Beak stout, usually short . . ^ Pbytobli- Group I. Mononycbl. A single genus constitutes this tribe. The species are of broad form, and larger than any others in the tribe, and are easily distinguished by the pygid- ium not being carinate in front, and with no transverse line for the reception of tlie tip of the elytra; the declivous exposed portion is, however, gibbous at the upper part, surrounded witli an impression, distinctly margined in the male: in the female there is a small, very deep excavation, surrounded 208 CUKCULIONID.T^. [LeLonte. by a thickened margin. The eyes are partially covered when the head is deflexed, and the beak, which is long and cylindrical, rests in a deep groove extending through the pro- and mesosternum, into the metaster- num, where it is sharply limited. The side pieces of the meso- and meta- sternnm are very large. The ventral sutures are curved at the sides; the first segment is as long as the metasternum, the second is shorter, third and fourth together equal to the second; fifth nearly as long as the first, truncate and impressed in the male. Legs slender, thighs slightly clubbed, tibiae obliquely fringed at the tip, terminal hook very small at the inner angle. Tarsi with the third joint very broad, bilobed; fourth joint small, with a single claw. MONONYCHUS Germ. The genus is suflaciently defined by the characters of the group. One species occurs in our fauna; otherwise it is represented by six species in Europe, Northern Asia, and one in the Canary Islands. 1. M. vulpeculus Boh., Sch. Cure, iv, 309; Ilhynchoinuii vulp. Fabr., Syst. El. ii, 450; Oliv., Ent. v. No. 83, 139, pi. 29, f. 437; Say, Cure. 20; ed. Lee. i, 286 (habits) . Canada to Georgia, on Iris. Say states that it also occurs on the flowers of Ceanothus americanus, and Verhascum tluvpsm in July. Group II. €oellocles. In the species of this group the eyes are partially covered hy postocular l<^bes, when the head is deflexed, and the pectoral groove extends into or beyond the mesosternum, the beak is long and cylindrical. The side pieces of the meso- and metasternum are large and wide. The ventral sutures are curved, and the first is as deeply impressed as the others; the second segment is shorter than the first; third and fourth still shorter, fifth nearh- as long as the first. The pygidium is perpendicularly deflexed, marked with an elevated angulated line for the reception of the tips of the elytra, in front of which it is carinated. The third joint of the tarsi is very broad and bilobed, the fourth is as long as the first, with two claws, which are cleft, or toothed. The following genera are represented in our fauna: Tibiae flattened, toothed on the outer side 2. " slender, not dilated nor grooved 3. 2. Pectoral groove extending to the metasternum CRAPONIUS. " not extending to the metasternum CNEMOGrONUS. 3. Body broadly ovate, elytra suddenly wider CCELIODES. " pyriform, elytra gradually wider AOALLODES. CRAPONIUS n. g. A single species which dift'ers remarkably from Goeliodes by the tibite being flattened, dilated, angulated on the outer margin near the base, and broadly grooved externally for the partial reception of the tarsi. It has, in LeConte.] CEUTORHYNCHINI. 2G9 addition, the pectoral groove prolonged to the posterior margin of the metasternum. The funicle of the antennae is slender, and consists of seven joints, of which the second is as long as the three following. Tlie claws are armed with an acute tooth, half as long as the claw. 1. C. insequalis. CexitorliyncMis tnceq. Say, Cure. 20; ed. Lee. i, 286. Middle, Southern and Western States. Easily known by the broad form and dark color; the prothorax has four large tubercles, of which the outer ones are acute; the dorsal canal is prolonged to the apical margin, which is slightly emarginated thereby. The alternate interspaces of the elytra are more elevated and somewhat uneven, as in certain Conotracheli. Length 2.7 mm.: .11 inch. CNEMOGONUS n. g. Tlie tibi« of one species are so ditlerent from those of the other Cceliodes, that I am obliged to regard it as a separate genus. They are, namely, much flattened and dilated externally, so as to form a large angle near the knee. The outer apical angle of the front tibise is prolonged in a toothed process, as in Cceliodes, and the other tibise are obliquely truncate and fringed externally. In other respects this genus agrees with Cceliodes; the pectoral groove is not prolonged into the metasternum, as in Craponius, nor are the tibiee grooved externally for the reception of the tarsi. The thighs are not toothed, and the claws are armed with a short tooth, not cleft, as in Cceliodes, C. epilobii. Cure, epilobii Fayk., Faun. Suec. iii, 259; RhynrJmnus ep. Gyll., etc.; Cceliodes ep. Gyll., Sch. Cure, iv, 288, &c. Widely diffused in Europe, from Scandinavia to Austria. I have a spec- imen from Great Slave Lake, and one from British Columbia, which seem to be the same. Apart from the generic characters above given, this spe- cies is easily known by the interspaces of the elytra, rough with small acute tubercles ; near the base there is a small cruciform white spot, formed by the junction of a short sutural line with a transverse one, which iv'vx, rough and muricate; an elongate basal spot on the suture, com- posed of small white scales, sometimes removed by abrasion. Funicle slender, first joint nearly as long as the second, and stouter; third nearly as long as the second; 4^7 gradually shorter, but scarcely thicker; club mode- • rate, oval pointed. Thighs acutely toothed, claws cleft. Length 2.5 mm.; .10 inch. (^. Last ventral segment with a shallow circular impression. Beak stouter, densely punctured. 9. Last ventral segment not impressed; beak longer, more slender, less densely punctured. Southern and Western States. The mesosternum is slightly concave; indicating a pectoral groove, though without ridges. In this character, as well as by the stouter and more densely punctured beak of the (j\ it shows a tendency towards CivUodea. Leconte.] CEUTORHYNCHINl. 275 A— b. •i. C. decipiens, n. sp. Rather elongate, black, beneath clothed with gray scales, above with a few scattered white hairs, and an elongate white sutural spot at the base of the elytra. Head densely punctured; beak {(^) half as long as the body, cjiindrical, curved, strongly punctured, striate and carinate towards the base. Prothorax as long as wide, narrowed in front, sides slightly rounded behind, sinuate in front, broadly constricted near the tip, apical margin not elevated, postocular lobes very feeble, disc very coarsely punctured, chan- neled behind, tubercles wanting. Elytra elongate-oval, wider than the prothorax, convex, very deeply striate, interspaces not wider than the striae, convex, rough with acute granules. AntenniE with 6-jointed funicle; first and second joint longer, the first stouter, club moderate, oval-pointed. Thighs armed with a small but acute tooth; tibi* rather less slender than usual, claws cleft. Length 2.4 mm.; .09 inch. (J". Last ventral segment with a transverse apical impression. Kansas and Michigan; two (^. This species has a singular resemblance in form and color to Rhinoncus longulus, but the beak and sculpture of the elytra are quite different. The generic characters seem to be very nearly those of Bhytidisomus, but the elytra, though rounded in form are more elongate. I infer therefore that that genus, founded upon a single Euro- pean species should be suppressetl. B. 5. C rudis, n. sp. Dark brown, beneath densely clothed with rather large dirt-coloi'ed scales, above thinly pubescent with brown hair. Head densely punctured,, finely carinate; beak (9) half as long as the body, shining and sparsely- punctured towards the tip, striate and punctured towards the base. Pro- . thorax wider than long, stronglj' rounded on the sides, much narrowed and constricted near the tip; apical margin elevated, postocular lobes broad and feeble ; disc convex very coarsely punctured, very deeply channeled, with pale scales in the channel and at the middle of the apex; tubercles wanting. Elytra deeply striate, interspaces wider, somewhat convex, rough. Funicle rather long, 7-jointed, first and second joints longer, the first stouter; club moderate, oval pointed. Legs reddish testaceous, thighs strongly toothed, claws armed with a short, acute basal tooth. Length 2.8 mm. ; .11 inch. One badly preserved specimen; Kansas. 6. C. sericans, n. sp. Oblong, depressed, dark brown, beneath densely clothed with small, gray scales, above with fine, scale-like brown hairs, with a silky lustre. Head densely punctured, feebly channeled, beak punctured and striate towards the base. Prothorax wider than long, sides nearly parallel behind, then strongly narrowed and constricted near the tip; apical margin elevated, postocular lobes large and broad; disc densely, not coarsely punctured, 276 CURCULIO]!^IDJE. [LeCoute. channeled, lateral tubercles large, obtuse. Elytra striate, interspaces flat, wide, granulate, slightly mottled with white hairs; an elongate, snow-white sutural spot extends from the base for one-third the length. Thighs toothed, claws armed with a small basal tooth. Length 3 mm. ; .08 inch. One (J", Calaveras, California; Mr. Crotch. The last ventral segment is deeply aud widely impressed. A very beautiful and easily recognized species. 7. C. convexicoUis, n. sp. Oblong, black, beneath clothed with gray scales, above uniformly densely covered with coarse dirt-colored pubescence. Head densely punctured, beak (?) long, slender, slightly curved, shining; punctured towards the base. Prothorax wider than long, narrowed in front, strongly rounded on the sides, constricted near the tip, apical margin elevated, postocular lobes very feeble; disc coarsely punctured, deeply channeled. Elytra with deep punctured striae, interspaces wide, flat, finely alutaceous. Antenn;* testa- ceous, funicle slender, second joint longer and more slender than the first. Legs brown, thighs not toothed, claws with a long acute tooth. Length 2 mm. ; .08 inch. Texas, Belfrage, two $ . Of the same general form as G. rajxe, but much smaller, and with a quite different prothorax. 9. C. pusillus, n. sp. Oblong, depressed, dark brown, or ferruginous, clothed beneath with rather small gray scales, above with short rigid pubescence, mixed with similar scales. Head densely punctured, occiput finely carinate; beak slender, punctured, striate at the base. Prothorax wider than long, sides more obliquely rounded behind, suddenly narrowed and constricted in front, apical margin elevated; disc densely punctured, less deeply channeled, with a dorsal line of pale scales; posterior tubercles large, rather acute. Elytra with deep striae, interspaces somewhat wider, sli2;htly convex, sparsely rugose; a basal whitish spot, occupying the space from the suture to second stria. Funicle slender, 7-jointed; first and second joints longer, the first stouter; club moderate, oval pointed. Legs ferruginous, thighs not toothed, claws with an acute basal tooth. Length 3 mm. ; .08 inch. 1^. Last ventral segment with a deep, round impression. California and Oregon; not rare. Allied to C. convexicoUis; differs chiefly by the sides of the prothorax less rounded, the dorsal channel less deep, and the lateral tubercles more acute. The whitish basal spot of the elytra is frequently indistinct; aud I have indeed some specimens which have lost the scales of the upper surface, while retaining the pul)escence. These present a very deceptive appearance, and look almost as if they be- longed to a different species. C— a. 9. O. pusio Mann., Bull. Mosc, 1853, ii, 355. Oblong, depressed, dark brown, beneath densely clothed with small. LeConte] CEUTORHYN^CHINI. 277 pale scales; above mottled with fine, short, brown pubescence. Head densely punctulate, front l)roadly concave; beak not half as long as the body, slender, curved, nearlj^ smooth and shining externally, punctulate and finely carinate towards the base. Prothorax wider than long, sides rounded behind, strongly narrowed and constricted near the tip; apical margin elevated, postocular lobes wanting; disc coarsely punctured, dorsal channel broad, subinterrupted, lateral tubercles large, acute. Elytra deeply striate, interspaces wider, slightly convex, sparsely and deeply rugose; scutellar region clothed with pale scales. Funicle with first and second joints elongated, first stouter; 3-7 gradually a little wider, club rather large, oval-pointed. Thighs not toothed, claws slender, not toothed. Length 2 mm.; .08 inch. (^. Last ventral segment with a deep, round excavation. Alaska. I owe two typical specimens to the kindness of Prof. Mieklin; it was also found by Mr. Crotch, at Clear Lake, California. In well pre- served specimens, the sides of the prothorax and the dorsal channel are clothed with pale scales. 10. C. squamatus, n. sp. Ovate, broad, dark piceous, depressed, beneath clothed with whitish scales, above thinly pubescent, with spots of large rounded, wiiite scales. Head finely punctured; beak long, slender, much curved, nearly smooth towards the tip, finely striate towards the base. Prothorax wider than long, strongly narrowed in front, and constricted near the tip, apical mar- gin elevated, ferruginous, postocular lobes wanting; disc densely punc- tured, dorsal channel feeble, lateral tubercles small, acute; sides and basal spot covered with white scales. Elytra with deep punctured striae, inter, spaces wider, slightly convex, rugose, marked with scattered white scales; there is a large scutellar spot, and a transverse band behind the middle, densely clothed with white scales. Funicle slender; first and second joints longer, the first a little stouter, club elongate-oval, pointed. Thighs not toothed, claws slender, not toothed. Length 2 mm. ; .08 inch. (^. Last ventral segment with a deep transverse excavation. Illinois; three specimens. C— b. 11. O. angulatus, n. sp. Oblong, depressed, brown or blackish brown, densely clothed above and beneath with small pale scales ; a white, narrow, angulated band on each elytron, running from the side about one-third from the base obliquely backwards a short distance, then obliquely forwards to the scutellum. Head densely punctured, beak according to sex; front slightly concave. Prothorax wider than long, rounded on the sides, strongly narrowed and constricted in front, apical margin elevated, postocular lobes broad and distinct; disc covered with white scales at the sides, very densely punctured, dorsal channel deep, lateral tubercles acute, large. Elytra with rather shallow punctured striae, interspaces wide, flat, 278 CURCULIOI^ID^. [LeConte. densely rugose. Funicle O-jointed, first to third joints elongate, the tirst stouter; club oval-pointed. Thighs with a very small obtuse tooth, claws slender, simple. Length 3 mm.; .12 inch. (f. Last ventral segment with a deep transverse excavation; beak lei«8 than half the length of the body, stouter, densely punctured. 9. Last ventral segment not impressed; beak half the lengtli of the body, more slender and more curved, nearly smooth towards the tip, strongly punctured and striate towards the base. Vancouver Island and California. Among many specimens before me, there are only a few in which the markings are perfectly preserved; in these, besides the angulated narroAV band above described, the apical part of the elytra is also clothed with white scales, especially towards the suture; but these scales are less densely placed than those in the band ; there is also a spot at the middle of the base of the prothorax. 13. C. obliquus, n. sp. Oblong, depressed, brown, densely clothed above and beneath with pale brown scales, which are smaller above. Head and beak like the preceding. Prothorax wider than long, rounded on the sides, strongly narrowed and constricted near the tip; apical margin elevated, postocular lobes broad, distinct; disc densely and more coarsely punctured than in C. angulatus, deeply channeled, lateral tubercles large, acute. Elytra less broad at base, strife rather shallow, punctured, interspaces wide, flat, strongly rugose; a lateral oblique spot of dense whitish scales extends from the ninth to the fifth stria. Other characters and sexual difterences as in 0. angulatus. Length 2.4 mm. ; .09 inch. California at San Mateo ; three specimens, Mr. Crotch. Closely related to the preceding, but more elongate, and with the scales uniform in color, except the white oblique spot towards the sides of the elytra. 13. C. tau, n. sp. Ovate, narrowed in front, and less so behind, depressed, blackish, densely (dothed with dark gray scales, which are smaller and more fuscous above. Beak curved, slender, sparsely punctured, striate towards the base. Head densely punctured. Prothorax as in C. angulatus, but more obliquely rounded on the sides. Elytra less oblong, more distinctly narrowed l)e- hind, similarly striate and rugose, with a large scutellar spot like an in- verted T> ^^^ ^'1 oblique lateral spot densely clothed with gray scales. Antennte and legs brown, similar to those of C. angulatus. Length 3 mm.; .12 inch. One specimen, Texas; Belfrage. Also closely allied to the two preced- ing, and differing only by form and elytral spots. 14. O. semirufus, n. sp. Ovate narrowed in front, and less so liehind, brown; elytra behind tlie middle, antennte and legs ferruginous; beneath densely clothed with white scales; above thinly and finely puliescent, with the suture and quadrate lateral spot of elytra clothed with white scales. Head densely punctured, LeCoiite. CEUTOEHYNCHINI. 279 beak curved, punctured towards the tip, striate towards the base. Pro- tliorax wider tliau long, rounded on the sides, narrowed and constricted in front, apical margin elevated; postocular lobes broad, distinct; disc strongly less densely punctured, deeply channeled, lateral tubercles acute, sides and dorsal line clothed with white scales. Elj'tra with punctured strife, inter- spaces flat, shining, slightly punctulate. Thighs not toothed, claws slender, simple. Length 1.3 mm. ; .05 inch. Detroit, Messrs. Hubbard and Schwarz. A small species remarkable for the less pubescent upper surface, and pectiliar coloration; seems related to the European C querceti, but differs by the quadrate lateral white spot of tlie elytra. 15. O. medialis, n. sp. Oblong, depressed, Ijrown, beneath densely clothed with pale scales, above with fine brown hair-like scales. Head punctured, beak long, slen- der, curved, shining and nearly smooth towards the tip, punctured and sub- striate near the base. Prothorax wider than long, obliquely rounded on the sides, strongly narrowed and constricted near the tip, apical margin elevated, postocular lol>es broad, indistinct; disc strongly punctured, dor- sal channel not deep, lateral tubercles small but acute; sides and dorsal line clothed with pale scales. Elytra with punctured striie, interspaces wider, flat, strongly rugose; sutural interspace and base of second densely clothed with pale scales; sides of elytra, especially behind the middle, less densely clothed with similar scales. Funicle 6-jointed. Thighs not toothed, claws slender, not toothed. Length 2 mm. ; .08 inch. Two specimens. Lake Superior. The beak is similar in the two speci- mens, but one of them, which I infer to be the ^, has the last ventral seg- ment very feebly impressed. 10. O. septentrionalis Gyll., Sch. Cure, iv, 493. Lake Superior, Canada, and Pennsylvania; not rare. A small species, densely clothed above with depi'essed, scale-like pubescence, which has a feeble metallic lustre; in many specimens there is a faintly marked paler scutellar spot. The lateral tubercles of the prothorax are very small; the funicle 6-jointed; the thighs not toothed; the claws slender, not toothed. Length 3 mm. ; .08 inch. 17. C Zimmermani Gyll., Sch. Cure, iv, 493. Canada to Texas. Still smaller, brown, clothed with small, pale scales above; lateral tubercles of prothorax verj' small; antennae, thighs and claws, as in the preceding. The elytra and legs usually of a paler brown, .^ength 1.5 mm.; .06 inch. 18. C. puberulus, n. sp. Oblong, depressed, blackish with a feeble metallic glimmer, beneath clothed with pale scales, above with short, coarse pubescence. Prothorax wider than long, much narrowed and constricted in front, apical margin elevated, postocular lobes broad, not distinct; densely punctured, dorsal channel distinct, not very deep, lateral tubercles small, acute. Elytra 280 CURCULIONID^. [LeCoiite. deeply striate, interspaces flat, rugose. Funicle 6-jointed; thiglis and claws not toothed. Length 1.7 mm. ; .07 inch. Canada and Michigan. A little larger and darker colored tlian C Zim- mermanni, from which it differs chiefly by the upper surface being covered with scale-like hairs, or small, elongate, hair-like scales; while in the pre- ceding most of the scales are oval. Group IV. Pbytobii. The species of this group differ from the Ceutorhynchi only by the beak being stout, and usually short, in one instance scarcely as long as the pro- thorax. The prothoracic lobes are feeble or wanting, the eyes are some- times partially covered in repose, sometimes entirely free. The pectoral groove is sometimes well defined by antecoxal ridges on the prosternum, but occasionally these are absent. The first genus exhibits a very singular reversion towards the Bago^is group, M'ith which it might indeed be placed, were it not that the pygidium is exposed, and similar in sculpture to that of the other members of the present tribe, and, also, that other characters correspond with the position here assigned to it. The genera are somewhat diflicult to define, in consequence of the im- portant structural characters l)y which the species are distinguished. It is probable that they will be increased in future, by those whose views tend to the multiplication of genera, but for the present, I think that the divisions here adopted express both conveniently and naturally the affini- ties of the species known to me. Tarsi with the third joint dilated, bilobed 2. " slender, long, not dilated PHYTOBIUS. 2. Prosternum with acute antecoxal ridges 3. without " " PELENOMUS. 3. Eyes with acutely elevated orbits CCELOGASTER. " without " " RHINONCUS. PHYTOBIUS Sch. EubrycMus Thomson. In this genus the beak is stout, cylindrical, nearly as long as the protho- rax ; the eyes are small, rounded, convex and fully exposed. Prothorax not much wider than the head, wider than long, slightly narrower at the tip, truncate before and behind, with a small angle at the scutellum ; the disc is feebly longitudinally impressed behind the middle, and the lateral tubercles are small and indistinct. Elyti'a deeply striate, nearly twice as wide as the prothorax, and about three times as long, voluminous, broad at the base, gradually narrowed behind. Pygidium triangular, exposed. Legs long, slender, tibise nearly straight, not mucronate ; tarsi not dilated, last joint as long as the others united, with rather large simple claws. A remarkable and easilj' recognized genus, of which but one species is known. Schonherr divided Phytobius into two groups of which the first {genuini), was characterized by long slender tarsi. There is, therefore, no excuse for retaining the name for the second group, (spurii) and it must be restored to this genus afterwards named EubrycMus by Thomson. LeConte. CEUTORHYNCHINI. 281 1. P. velatus Gyll., Scli. Cure, iii, 459; Ehpnchienus vel. Beck, Beitr. Bayersch. Ins. Fauna, 20 ; Liiodactylus vel. Redt., Faun. Austr. 777 ; Eubrychius vel. Thomson, Skand. Col. vii, 232. A specimen collected at Detroit, Michigan, by Messrs. Hubbard and Schwarz, does not differ appreciably from the detailed descriptions above cited ; it is rare in northern and middle Europe, on Potamageton and other plants, below the surface of the water. It is a small black insect, clothed with depressed greenish yellow scales ; the prothorax has two broad dark stripes ; the elytra are more thinly clothed with scales, except the sutural interspace, which is densely covered. The antennae and legs are bright yellow, with the knees dusky. Length 2 mm. ; .08 inch. PELENOMUS Thomson. Tlie species of this genus are easily distinguished by the short stout beak, whicli they have in common with Rhinoncus and Ccelogaster, being com- bined with prosternum somewhat emarginate in front, but without ante- coxal ridges. Tlie eyes are round, convex, without orbital ridges, and are completely exposed in repose, on account of the entire absence of the postocular lobes of the prothorax. The claws are simple and moderately large. The funicle is 6-jointed, with the tirst joint longer and stouter ; the club is rather large, oval-pointed, annulated and acuminate. There are but three species in my collection : A. Funicle slender, 2d and 3d joints distinctly longer. Prothorax broadly sulcate, apical and posterior tubercles strongly marked, acute 1. sulcicollis. B. Funicle shorter and stouter, joints 2-3 very little longer. Prothorax broadly sulcate, apical tubercles more dis- tant but acute, posterior tubercles acute 2. squamosus. Apical tubercles indistinct ; interspaces of elytra with rows of acute tubercles 3. cavifrons. 1. P. sulcicollis. PhytoMus sulc. Fahr., Sch. Cure, vii, 346. Lake Superior to Georgia. The second and third joints of the funicle are distinctly longer than the following ones, and the upper margin of the eye is a little prominent, showing a tendency toward the second division of Ccelogaster. 2. P. squamosus, n. sp. Smaller than P. sulcicollis, black, above densely clothed with dark gray scales, slightly mottled with brown, beneath with paler scales. Beak scarcely longer than the head, stout, cylindrical, densely and finely punc- tured ; eyes convex, prominent, head densely punctured, not impressed. Prothorax wider than long, much narrowed in front, apical tubercles acute, distant, posterior tubercles acute, rather large ; dorsal channel not deep, sides and dorsal stripe with paler scales. Elytra with deep slightly punc- tured striae, interspaces convex, very finely rugose. Antennae and legs more or less testaceous ; the former rather stout, with large oval club; PHOC. AMER. PHILOS. SOC. XV. 96. 2j 282 CURCULIONID.E. [LeConte. second joint of funicle a little longer than the third, which is about equal to the fourth. Claws simple. Length 2 mm.; .08 inch. Two specimens, New York and Michigan ; three specimens, British Ci>luml)ia; Crotch. The legs are testaceous in one, piceous in the others. Tlie prosternum is broadly emarginate in front, and slightly concave, l)ut without antecoxal ridges ; the front coxae are not widely separated. In the preceding species the prosternum is more deeply emarginate and more con- cave, though the front coxge are not more widely separated. 3. P. cavifrons, n. sp. Of the same size and form as P. sulcicoUis, densely clothed with small liale and dark scales. Beak as long as the head, stout, cylindrical, curved, densely punctured ; front strongly concave between the eyes. Prothorax wider than long, much narrowed in front, and deeply transversely im- pressed; apical margin elevated, notched at the middle, with approximate cusps ; posterior tubercles large, acute ; dorsal channel distinct. Elytra with rows of small, distant, acute tubercles on the third, fifth, seventh and ninth interspaces ; striae deep ; antennae and legs more or less testaceous ; funicle with the second joint scarcely longer than the third or fourth. Front coxfe not more widely separated than in the other species. Length 2.2 mm. ; .09 inch. California, at S. Buenaventura, Los Angeles, and Lake Tahoe; ]Mr. Crotch. Though the front is deeply concave, and the upper margin of the eyes prominent, there is no distinct orbit, such as is seen in Ccelogaster. CCELOG-ASTER Sch. This genus is easily distinguished from both Rhinoncus and Pelencon'is by the eyes being inserted under distinct, acute, superciliary ridges or or- bits, and being partly covered in repose. There are also important differ- ences in the sternal pieces ; the prosternum is still more deeply and sud- denly emarginate in front, so as to reach almost to the front coxae, which also reach almost to the hind margin, and are more widely separated than in either of the genera just named; the ridges in front of the coxa? limiting the pectoral groove, are much stronger. The mesosternum is truncate be- hind at the middle, and enters less into the formation of the middle coxal cavities. The intercoxal process of the metasternum is therefore almost square, and the middle coxae are more posterior than in the other genera. The beak and claws vary according to species; the funicle is 6-jointecl, the first joint being stouter, and the others slender ; second and third elon- gate ; 4-6 shorter, equal, scarcely thicker, club elongate-oval, pubescent, acute at tip. Tliree species are known to me, of which the first is the type of the genus. A. Beak slender, claws cleft ; eyes nearly covered in repose. Black, mottled with whitish pubescence; elytra with a common cruciform white mark at base; antennae, tibiae and tarsi testaceous 1. Zimraermanni. LeConte.] CEUTORHYNCHIXI. 283 B. Beak stout, claws simple; eyes nearly entirely ex- posed. Black, clothed with tine brown pubescence; an- tennae and legs dark testaceous • 2. cretura. Brown, with some small white spots 3. obscurus. 1. C. Zimmermanni Gyll., Sch. Cure, iv, 580. South Carolina and Georgia. The beak in this species is nearly as long as the prothorax, and is only about one-quarter as wide as its length. The supraocular ridges are less developed than in the two other species. The postocular lobes are very broad and nearly conceal the eyes in repose. 2. C. cretura. CurcuUocretu)'aB.erhst, Kafer, vii, 70; pi. 100, f. 5; Geu- torhynchus cret. Say, Cure. 20; ed. Lee. i, 285; Falciger A-spino>(m Say, Journ. Ac. Nat. Sc. Phil, iii, 310; ed. Lee ii, 173. Phytobius A-sjoin. Gyll., Sch. Cure, iii, 463. Broadly ovate, black, above thinly clothed with brown pubescence, be- neath at the sides covered with pale brown scales, extending upon the sides of the prothorax. Head punctured, broadly impressed between the eyes; tinely carinate behind, supraorbital ridges strong; beak rather stout, curved, as long as the head, finely punctured. Prothorax wider than long, strongly narrowed in front, densely punctured, middle of base deeply impressed; the tw^o apical denticles are acute and distant; the posterior or lateral tu- bercles are also large and acute. Elytra with deep strife, which are punc- tured at the bottom; interspaces not much wider than the striae near the suture, but becoming wider externally, densely rugose. Beneath densely coarsely punctured, antennae and legs brown ; claws not toothed. Length 2.8 mm. ; .11 inch. Middle and Western States. Of the same size, form and sculpture as G. Zimmermanni, but quite distinct by the shorter beak, simple claws, unva- riegated pubescence, and not channeled prothorax. It is perhaps worthy of being separated w'ith the next species, as a distinct genus, on account of the eyes being almost entirely exposed in repose, while in C. Zimmerman- ni they are nearly covered. 3. C obscurus, n. sp. Broadly oval, reddish brown, head darker, strongly punctured, deeply impressed; supraorbital ridges strong; beak very stout, not longer than the head, more finely punctured. Prothorax wider than long, much narrowed in front, coarsely punctured, channeled; apical denticles acute, distant, posterior tubercles acute. Elytra with a few small spots of white hairs; striae deep, strongly punctured; interspaces but little wider, convex, finely rugose and finely scaly. Beneath coarsely punctured, clothed with pale scales. Antennae and legs testaceous, claws not toothed. Length 2.8 mm. ; .11 inch. Florida; Dr. E. Brendel, and Messrs. Hubbard and Schwarz, Of the same form and size as the preceding, but with shorter and stouter beak; more coarsely punctured, and rather deeply channeled prothorax. 284 CURCULIONTD^. [LeConte, RHINONCUS Sch. The species of this genus have the broad stout form usual in the tribe, and only differ from Pelenomus by the presternum being deeply emargi- nate in front, with distinct antecoxal ridges. The middle coxfe are normal in position, their cavities being formed equally by the meso- and metasternum, whereby it differs notably from Ccelogaster ; it also differs from that genus by the eyes, which are rounded and convex, as in the other genera, and without any trace of superciliary ridge. The funicle of the antennoe is 7-jointed, and the claws cleft are in our species. 1. R. pericarpius Gyll., Sch. Cure, iv, 582; Curculio peric. Linn., Syst. Nat. 12th, ii, 609; Fabr., Ent. Syst. i, 2d, p. 408; et auctorum plu- rimorum; CeutorhyncMis triangularis Say, Cure. 20; ed Lee. i, 286. Abundant in Europe; Lake Superior, Indiana, Pennsylvania, Kansas; easily known from our other Ceutorhynchoids by the larger size and con- spicuous elongate sutural white spot at the base of the elytra. The pro- thorax is very coarsely punctured, feebly channeled, and the lateral tuber- cles are not very distinct. Length 4 mm. ; . 16 inch . I do not know why Gemminger and Harold have referred Say's description to Phytobius. 2. R. pyrrhopus Boh., Sch. Cure, viii, 2d, 172. Middle and "Western States, to Colorado. Smaller, clothed above with coarser brown pubescence, and beneath with white scales. The prothorax is feebly channeled, and the lateral tubercles are acute. The antennae and legs are fulvous yellow. The elytra are marked with a similar elongate basal white or j'ellowish spot, which, however, is sometimes not very ap- parent. Length 2.3 mm. ; .09 inch. 3. R. long-ulus, n. sp. Elongate, black or dark brown, thinly clothed with small white scales; more dense, forming a short posterior dorsal line on the prothorax, and an elongate sutural spot at the base of the elytra. Head and beak densely punctured, the latter stout, not longer than the head. Prothorax not wider than long, slightly narrowed in front, feebly rounded on the sides, coarsely and densely punctured; slightly channeled near the base; tubercles entire- ly wanting. Elytra wider than the prothorax, elongate-oval, convex, hu- meri oblique; striae deep, punctured, interspaces fiat, densely rugose. An- tennae and tarsi testaceous. Length 2.5 mm.; .10 inch. Southern and Western States; Florida to Illinois; Gilroy, California. Remarkable for its elongate form, and the absence of prothoracic tubercles. The eyes are round, and barely touch the prothorax in repose. The ante- coxal ridges are very strong, but the prosternum is hardly emarginate in front. Tribe XIX. bariki. An important type of Curculionidce, containing numerous genera and groups, of which only a few are represented in our fauna. It is in this LeConte.J BAEII^^I. 285 tribe that the nearest approach to Calandrida and CossonidcB is made, in form and general appearance, though the family characters are quite dif- ferent. The following characters will enable them to be distinguished from the other tribes in which the front coxae are separate. Beak not received closely upon the sternum, which however is some- times broadly sulcate in front of the anterior coxae; when this groove does not exist, there are sometimes seen {Madams) two short approximate ridges, limited inwards by an impressed line, which may be regarded as the last remnant of the pectoral groove. In other cases (Baris striatus) even these lines disappear, and the merest trace of a concavity remains in the apical constriction of the prothorax, which in all the species is not emarginate beneath, and is destitute of postocular lobes. In many others even this slight concavity or flattening is wanting, and the apical part of the prothorax is altogether cylindrical, above and ])eneath. The meso- and metasternum are closely united, and the suture between them is fre- quently obliterated. The side-pieces of the mesothorax are so extended outwards and upwards, that they intervene strongly between the base of the prothorax and the elytra The sides of the latter, therefore, become obliquely truncated, giving a form not observed in any of the preceding tribes. The other characters are somewhat variable. The pygidium is sometimes exposed, sometimes covered. The claws are simple, and either divergent, connate, or even {Barilepton) single. The genera in our fauna represent two groups: Pygidium exposed, usually vertical; fifth ventral segment in the latter case truncate or subemarginate Barides. Pygidium oblique or horizontal, not fully exposed; fifth ventral segment rounded at tip Centrini. Group I. Barides. The separation between this group and the Centrini is not very definite, though characters such as the perpendicular pygidium, and the shorter and stouter beak, seen in most of the species, do not occur in the last named group. The main character to be relied on, in the absence of the easily recognized habitus, is that the elytra are more broadly separately rounded at tip, and the pygidium thus becomes more exposed. Pygidium oblique; fifth ventral segment longer, rounded at tip; outer joints of funicle but little broader, club large, elongate-oval, pubescent. ... 2. Pygidium vertical; fifth ventral segment shorter, sub- truncate 3. 2. Beak long, slender, straight ORTHORIS. " shorter, less slender, curved RHOPTOBARIS. 3. Club annulated, entirely pubescent 4. 286 CUECULI0:N-ID^. [LeConte. Clul) with first joint larger, sliining, claws divergent BARIS. 4. Claws approximate, frequently connate 5. " divergent, larger, last joint of tarsi longer than usual 7. 5. Front coxte widely distant, body nearly glab- rous 6. Front coxfe not widely distant; body densely scaly \ ' TRICHOBARIS. (3. Prothorax strongly constricted near the tip. . . 8. feebly " " "... PSEUDOBARIS. 7. Second joint of funicle not longer than third.. ONYCHOBARIS. longer AULOBARIS. 8. Front thighs not toothed AMPELOGLYPTER. obtusely toothed MADARUS. ORTHORIS n. g. This genus contains a sparsely pubescent species from California, which has a singular resemblance in form to Orchesies. It differs from the other genera of this subtribe by the beak being long, slender, cylindrical and not curved; it is separated from the front by a transverse impression, as usual. The antennae are inserted about two-fifths from the end of the l)eak, the scape does not quite reach the eyes; the first joint of the funicle is stouter and longer than the others, which are nearly equal; the club is elongate- oval, as long as the joints 2-7 of the funicle, and entirely pubescent and sensitive. The front coxae are nearly contiguous and the prosternum is broadly, though not deeply sulcate in front. The legs are rather long and slender, tibife not mucronate at tip; the third joint of the tarsi broad and deeply bilobed; claws simple, divergent. The prothorax is as long as wide, gradually narrowed in front, with sides perfectly straight. Elytra wider at base than the prothorax, humeri prominent, sides parallel, tips separately rounded, pygidium exposed, obliquely declivous; fifth ventral longer than the preceding, acutely rounded at tip. 1. O. Crotchii, n. sp. Elongate, not convex above, black, moderately shining, sparsely pubes- cent with rather coarse whitish hairs. Beak slender, cylindrical, nearly straight, longer than the head and prothorax, sparsely punctulate towards the tip, more stronglj^ towards the base; head convex, sparsely punctulate, frontal constriction deep. Prothorax as long as wide, I'egularly narrowed from base to tip, which is only one-half as wide as the base; sides straight, disc strongly and rather densely punctured, with a "narrow smooth dorsal line. Elytra one-fourth Avider at base than the prothorax, humeri promi- nent, rounded, sides parallel, tip rounded; strife deep, impunctured, inter- spaces slightly convex, sparsely punctulate. Beneath strongly punctured, punctv;res becoming gradually finer upon the abdomen. Length 3.5 mm. ; .14 inch. LcConte.] BARmi. 'ZSl California, locality unknown; several specimens, without sexual difter- ences. RHOPTOBARIS n. g. The single species of this genus resembles closely in form, sculpture and pubescence TricJiobaris trinotata, but without the three denuded spots at the base of the prothorax. It diifers by the club of the antennae almost as long as the funicle, elongate-oval, entirelj^ pubescent, and very indis- tinctly annulated; the first joint of the funicle is as long as the three fol- lowing, and stouter; 2-7 short, gradually a little broader. Beak as long as the head and prothorax, curved, not very slender, depressed as usual at tip, frontal constriction not deep. Front cox* moderately distant, prester- num not impressed nor sulcate. Elytra elongate oblong, separately rounded at tip; pygidium exposed, obliquely declivous. Last ventral segment as long as the third and fourth united, rounded at tip, with a slight tooth at the middle in (^, as in Trichobaris. Legs slender, tibiae with a very small apical hook; third joint of tarsi moderately dilated, bilobed; last joint long, claws rather large, divergent. 1. R. canesens, n. sp. Oblong elongate, very densely and rather finely punctured, and clothed with brownish gray pubescence, or hair-like scales. Head finely punc- tured; beak not stout, finely punctured, nearly smooth at the tip. Protho- rax scarcely longer than wide, gradually but not strongly narrowed from the base, sides broadly rounded, base broadly subsinuate, truncate in front of the scutellum. Elytra a little wider than the prothorax, strite well marked; interspaces wide, flat, denselj" and rugosely punctured. Punctures of under surface a little coarser than above. Length 4 mm.; .16 inch. Colorado, four specimens. TRICHOBARIS n. g. I have separated as a distinct genus, certain species of elongate form and densely clothed with scales or pu])escence. They difter from other genera of the group by the following characters: Club of antennae rather small, oval, entirely pubescent, first joint forming about one-half of the mass. The funicle is stout, first joint longer, others equal in length, but gradually broader. Beak as long as the prothorax, much curved, rather stout, quite gil^bous at base, frontal constriction deep. Elytra separately rounded at tip. Pygidium vertical; last ventral segment scarcely longer than the fourth; with a small apical cusp in \j^. Front coxa3 very narrowly sepa- rated, prosternum broadly concave, and subsulcate in front of the coxtv. Legs slender, tibia? with moderate apical hook; tarsi with third joint mod- erately dilated, bilobed, last joint long, claws approximate and connate at base. Scales of upper surface hair-like 2. " " " oval; i>rothorax without denuded basal spots 1. texana. 288 OURCULIONLD^. [LeConte. 2. Pubescence dense; protliorax with three denuded ba- sal spots 2. trinotata. Pubescence thin, prothorax without spots 3. plumbea. t. T. texana, n. sp. This species in every respect resembles the next, except in being clothed witli a dense covering of whitish scales, which on the upper surface are not hair-like, but oval, and not more than three times longer than wide. Beneath the scales are of the same size as above, and a little broader. The scutellum is concave, black, naked, and shining. There is a very small denuded basal spot, just inside ot the humeral callus, but it does not extend upon the prothorax; the striiB are fine, and almost concealed by the cover- ing of scales. Length 5 mm. ; .20 inch. Texas, Belfrage. As in the next species, the third and fourtli ventral segments are smooth and shining at the middle. 2. T. trinotata Say, Cure. 17; ed. Lee. i, 280 {Baridhis); Lee, Proc. Acad. Nat. Sc. Phila. 1868, 364; Baridius vestitus Boh., Sch. Curciii, 718; var. B. mucoreus Lee, Pr. Ac. 1858, 79; ibid, 1868, 364. Atlantic district, abundant and sometimes injurious to potatoes. Specimens from Upper and Lower California, and Arizona, are of larger size, and the proportion of oval scales on the under surface is greater; in- termediate forms between these and the northern individuals, in which the vestiture of the under surface is almost entirely capillary, occur in the Southern States. 3. T. plumbea Lee, Proc. Acad. Nat. Sc. Phila. 1868, 364 (Baridius). Maryland, one specimen. Much smaller than B. trinotata, more finely and less densely pubescent above and beneath, with the scales oval only upon the flanks of the prothorax; there are no denuded basal spots. The elytral striae are deeper. Length 3 mm.; .12 inch. AULOBARIS n. g. I have separated as a distinct genus some specimens from the Atlantic slope, which difter from Bar is proper by the more slender antennae; the first joint is scarcely stouter than the second, and the latter is quite as long as the first; the remaining joints (3-7) are gradually slightly wider and the club is elongate-oval, uniformly pubescent except at the base of the first joint, and not large. The beak is longer than the prothorax, cylindrical, slightly compressed towards the base, and not very slender. The front coxa; are rather widely distant, and the presternum is deeply and broadly sulcate in front. The body is more convex than usual in Baris, though in this respect, the species resemble Pseudobaris farcta. The under surface is coarsely punc- tured, with a small white hair in each puncture. These species represent group B of my synoptic table in Proc. Ac. Nat. Sc. Phil. 1868, 364, and may be distinguished as follows: LcConte.] BAEINT. 289 Brown, sides of protliorax broadly rounded 1. scolopax. Black, " " strongly " 2. 2. Protliorax coarsely, less densely punctured 4. anthracina. less coarsely and more densely punctured 3. 3. Elytral interspaces transversely rugose and punctu- Lite 2. ibia. Elytral interspaces with single rows of punctures. . . 3. naso. 1. A. scolopax (Say), Cure. 26; ed. Lee. i, 295, {Baridius); Boh., Sch. Cure, iii, 699. Illinois and Georgia, four specimens; in three of them distinct traces of a smooth dorsal line are seen on the protliorax, but in one the surface is quite uniformly i)unctured. The elytra become gradually wider behind the base for a short distance, so that the humeri are distinct, though very obtuse. 2. A. ibis Lee. loc. clt. 365. Georgia, four sjjecimens. More convex than the preceding and very similar in form to Fsettdobaris farctus. The humeri are rounded, slightly prominent. 3. A. naso Baridius nasutii,s\\Jjec. loc. cit. 295. One specimen, Kansas, and two from California or Arizona. The elytra are not wider than the protliorax, the stritc are deeper, tl;e interspacea narrower, and each is marked with a line of deep punctures; at the base of the third and fifth inlerspaces are a few whiiish hairs. I regret to have been the cause of confusion by having previously des- cribed another Baridius nasutus from Tejon, Cal., (Pr. Ac. Nat. Sc. Phil. 1859, 79). On reexamining that species I found that as the pygidium was covered by the elytra it did not belong to Baris; though I inadvertently forgot the name I had given to the species at the time I prepared the syn_ opsis of Baridius, in consequence of having transferred it to another box with the other species of C'entrinus. 4. A, anthracina (Boh.), Sch. Cure, iii, 727 (Baridius). Oblong oval, shining, black, head less shining, finely punctured, beak as long as the pi-othorax, rather slender, moderately curved, finely punctured above, coarsely punclured at the sides; club of antennae rounded oval, shi- ning only at the base. Prothorax coarsely and deeply punctured, more densely at the sides, which are nearly parallel for two-thirds the length, then suddenly rounded and narrowed to the apex, which is cons'ricted at the sides; dorsal line wanting. Elytra with deep stri;e, interspaces moder- ately wide, flat, each with a row of shallow punctures, extending across the interspaces, as distinct rugte. Prosternum deeplj- sulcate, with tlie groove sharply defined and nearly smooth. Length 3.8 mm. ; .15 inch. One specimen from Florida; Messrs. Hubbard and Schwarz. This spe- cies has the rather flat upper surface of true Baris, and is quite diflferent in form from the other three above mentioned. PROC. AMEK. PHILOS. SOC. XV. 96. 2k 290 CURCULIOXID^. [LeConte. BARIS Germ. As I have here restricted lliis genus, it contains onlj' those species in which the club of the antennae is small, nearly round, with the first joint not sensitive, shining, and constituting more tlian one-half the mass. The claws are separate, divergent, and of moderate size, and in some of the spe- cies (sparsa, &c.) small. The beak is stout, usually short, and much curved; the frontal constriction rather deep; sometimes it is a little longer tlian the prothorax. The front coxaj are never very widely separated; the pro- sternum is flat or broadly sulcate according to species. The pygidium is vertical, and the fifth ventral is but little longer than the fourth. Tibiae strongly mucrouate at tip. The species are glabrous or very slightly and sparsely pubescent. Prosternum narrow between the coxse 2. " moderately wide 4. 2. Prothorax gradually rounded on sides , 1. strenua. " more suddenly rounded in front and constricted 3. 3. Humeral callus less prominent 2. umbilicata. " " more prominent 3. striata. 4. Prosternum flat, or feebly concave 5. " broadly subsulcate 6. 5. Form narrow, nearly glabrous 11. " oval, nearly glabrous 4. subovalis. " oblong, nearly glabrous 5. transversa. " " pubescent, more finely and densely punctured 15, prviinosa. 6. Pectoral groove coarsely punctured 7. " " sparsely punctured, color brassy, claws smaller 9. 7. Color slightly brassy 8. " black 6. carinulata. 8. Interspaces irregularly punctulate 7. subsenea. " with regular rows 8. tumescens. 9. Narrower 10. Stouter, prothorax verj'^ coarsely and sparselj'^ punctured 9. nitida. 10. Prothorax more feebly punctured 10. interstitialis. " " strongly and denselj' punctured 11. conflnis. " " " " sparsely " 12. serea. 11. Prothorax rather sparsely punctured 13. sparsa. " densely " 14. macra. 1. B. strenua (Lee), Pr. Ac. Nat. Sc. Phil. 1868, 363, (Barulim). Wisconsin, Kansas, New Mexico. This species resembles in form and sculpture B. carinidatus and others in that neighborhood, but is easily known by the prosternum being narrow between the coxae, and flattened LeConte.] BAKINl. 291 but not concave in front of them. The head is nearl}- smooth, tlie beak coai-sely punctured, short and curved; the club of tlie antentut; is round, with fii"st joint shining. Protliorax ample, rounded on the sides, more suddenly narrowed and feebly constricted in front; punctures of usual size, smooth dorsal line distinct. Elytra very li'tle wider than protliorax, stria; very deep, interspaces elevated, fiat, each wi.h a row of strong punc:ures, which are approximate and furnished with very small white hairs, more obvious than in an}^ of tite following species; they are somewhat confused on the third interspace. 2. B; umbilicata (Lee), Pr. Ac. Nat. Sc. Phil. 1868, 363, {Baridius). Two specimens, Pennsylvania. This species resembles the next in every respect except that the prothorax is comparatively larger, and the humeral callus of the elytra less prominent. The head is sparsely, the beak strongly punctured, the club of the antenni^ nearly round, with the first joint shi- ning. Prothorax narrowed in front from the base, and scarcely rounded for two-thirds the length, then suddenly rounded and constricted near the tip; punctures unusuallj^ large, umbilicated. El^'tra a little wider than prothorax at base, striae verj^ deep, interspaces narrow, elevated, flat, each with a row of strong not approximate punctures. Prosternum very narrow between the coxae, broadl}"^ concave and coarsely punctured in front of them. Beneath coarsely punctured, finely sparsely pubescent. Length 5 mm.; .30 inch. 3. B. striata (Say), Cure. 17; ed. Lee. i, 281; Lee. Pr. Ac. 1868, 363. Michigan, Illinois, Kan.sas, Arizona. This is one of our largest species and is easily recognized by the comparatively smaller prothorax, and more prominent humeral callus. The prosternum is very narrow between the' coxae, flat and coarsel}^ punctured in front of them. The antennal club is nearly round and the first joint is shining. Length 5.5-6.5 mm.; .22-.26 inch. 4. B. subovalis (Lee), Pr. Ac. Nat. Sc. Phil. 1868, 363, (Baridim). One specimen; Wisconsin. A rather large species of oval foi'm, and shining black color. Head very convex, sparsely punctulate; beak a little longer and less stout than in the following eight species, much curved, constricted at base, strongly punctured. Prothorax narrowed from the base forwards, then more suddenly rounded and narrowed to the tip, which is slightly constricted at the sides ; punctures strong, but not very coarse, more dense at the sides, dorsal line tlis'inct. Elytra scarcely wider than the prothorax, humeri rounded, not prominent; striae deep, interspaces flat, finely but distinctly punctulate, punctures of the third interspace confused, of the others in irregular rows. Prosternum uniformly coarsely punctured, longitudinally concave or broadly sulcate in front; front coxae moderately distant. Antennae with club nearly round and first joint shining. Length 6 mm. ; .24 inch. 5. B. transversa (Say), Cure. 18, {Baridius); ed. Lee. i, 283; Lcc, Pr. Ac. Nat. Sc. Phil. 1868, 363; B. quadraius Lee, ibid. 361. 292 CUECULIO^ID^. [LeConte. Illinois to Kansas. Body oblong, rather elongate; head feeblj^ punCu- late, beak rather finely juinctured, shori, stout and much curved; frontal constriction not deep. Prothorax wider than long, subquadratc, very slightly narrowed from the base for three-fourths the length, then suddenly narrowed to the tip, which is scarcely impressed at the sides; punctures coarse, dense, smooth dorsal line narrow, sometimes obsolete. Elylra with deep strife, interspaces flat, strongly and confusedly punctured, forming here and there transverse rugosities. ProsJernum densely and coarsely punctured, flattened and slightly concave in front, but not sulcate; front coxae moderately distant, antennaj as usual. Length 4.5 mm.; .18 inch. 6. B. carinulata (Lee), Pr. Ac. Nat. Sci. Phil. 1858, 79; ibid. 18G8, 362, {Baridms). One specimen, Texas. Closely allied to the last, but the dorsal line of the prothorax is more distinct, and the punctures of the elytra are irregular only on the second and third interspaces, and form regular rows on the others. The prosternum is longitudinally concave, and subsulcate, though the limits of the groove are not well defined; the punctures are also less dense. 7. B. subaenea (Lee), Pr. Ac. Nat. Sc. Phil. 1868, 361, {BarMiux). Middle States. The color is brassy black, the beak more strongly punc- tured, the prothorax not wider than long, coarsely and densely punctured, with faint dorsal line. Elytra with deep strife, interspaces confusedly punctured. Prosternum very coarsely punctured, broadly subsulca.e. Length 4.5 mm. ; .18 inch. 8. B. tumescens (Lee), Pr. Ac. Nat. Sc. Phil. 1868, (Baridnis). New York, Illinois, Louisiana, Texas. A brassy species of oblong form, almost like B. transversa, with the prothorax coarsely punctured, and dor sal line obsolete; the beak is finely punctured. Elytra with deep s rite, in terspaces narrow, each with a row of fine punctures, which are confused upon the third. Prosternum coarsely punctured, broadly subsulcate. Length 4-4.5 mm.; .16-18 inch. 9. B. nitida, n. sp. Oblong-oval, shining black wi;h a bronze tint. Head convex, scarcely perceptibly punctulate; beak short, s'out, curved, finely punctured, frontal constriction well marked. Prothorax not wider than long, gradually nar- rowed from the base for two-thirds the length, then rounded and more sud- denly narrowed to the tip, which is not at all impressed on the sides; disc very coarsely but sparsely punctured, without trace of smooth dorsal line. Elytra scarcely wider than prothorax, strife deep, interspaces rather wide, each with a single series of well impressed distant punctures. Prosternum at the middle broadly but distinctly sulcate and sparsely punctured; flanks broadly concave, so that the lateral edge is somewhat dis.inct; front coxfc moderately distant. AntenniE as usual. Length 4.6 mm.; .18 inch. One specimen, Florida; Dr. Edward Palmer. Very distinct from all Le Co lite. J BARIN^I. 2'.)3 others in our fauna. I observe in this aud the three following species a ]ie- cnliarity, wliich is extremely rare among GurcuUonida>, and in fac^ amou'^ Rhynchophora; tlie tlanlis of tlie prot'iora.x are very suddenly' intlexed, and slightly concave, so that the side margin, though not w.ll defined by a sharp line, is still distinctly indicated. 10. B. interstitialis (Boh.), Sch. Cure iii, 684, (^Baridiu^)-/! (n/ii/n- climnm int.) Say, Journ. Acad. Nat. Sc. Phil, iii, 314; ed. Lee. ii, 170; BaridiuH int. Say, Cure. 18; ed. Lee. 1, 282. Middle and Southern States. I have retained this name for a species which is quite distinct from all others in our fauna. The well uiarked structural characters which enable our species of Bar is to be easily sepa- rated, were, however, not perceived by Say, nor by the collaborators of Schonherr, and I am therefore doubtful if the present name should be jirt- served. As far as I can judge from the descriptions, this spec es is the one intended by Boheman, founded upon a typical specimen from Florida sent by Say, and on others from Soulli America. But I am very uncertain if it be the one originally described by Say, and quite doubtful if that original be the same with the one subsequently referred to (Cure. 18), of which it is said that the punctures of the elytral inlerspaces "have a transverse rugulous appearance." In the original description (J. Ac. iii, 314), these same punctures are declared to be orbicular. Head sparsely punctulate, beak finely punc'ured, frontal constriction strong; prothorax strongly but not densely punctured, scarcely wider than long, slightly narrowed from the base for two-thirds th^- length, then more suddenly rounded and narrowed to the tip, which is feebly impressed at she sides. Elj'tra with deep striae, interspaces fla", each with a row of very fine punctures, somewhat confused on the third interspace, and nearly ob- solete in some specimens. Prosternum at the middle broadly but rather deeply sulcate, and more sparsely punctured. Antennae as usual. Len>^th 3.3 mm.; .13 inch. The color is black, slightly bronzed. 11. B. conflnis (Lee), Pr. Ac. Nat. Se. Phil. 1868, 362, (Baridius). Atlantic States, to Kansas. Very closely related to B. interstitiali", but more brassy, smaller and a little narrower, with the punctures of the pro thorax larger and less distant. The punctures of the int'^rspaces, though fine, are distinct, and arranged in rows, those of the third interspace are not confused. Length 3 mm.; .12 inch. 12. B. serea (Boh.), Sch. Cure, viii, 1st, 141, (Baridiun); Lac, Pr. Ac. Nat. Sc. Phil. 1868, 362. Southern States. Narrower, usually smaller, brighter brassy, with the punctures of the prothorax strong, but less dense, and those of the ely ral interspaces extremely small and distant, placed in single rows. Length 3.5-3.3 mm.; .10-. 13 inch. 13. B. sparsa (Lee), Pr. Ac. Nat. Sc. Phil. 1868, 384, (Buridim). Oregon and California, three specim?ns. Though the prosternum is 294 CUECULIONID^. [I.eConle. nearly flat, and coarsely punclured in this species, I have thought it belter to separate it from B. subovalis and tru/isver.'Hi,.'i on account of the narrower form, which approaches that of i?. cerea. The prothorax is however more regularly rounded on the sides, and is fully as long as wide; the ])uijctures are coarse but not dense. The elytral strite are less deep than usual and the punctures of the interspaces are well marked; these punctures are finer and more distant in the specimen from Oregon, than in those from Califor- nia. The latter being better preserved show fine but distinct whie hairs proceeding from each interstitial puncture. The thoracic smooth dorsal line is very distinct in the Californian, but almost obsolete in the Oregon specimen. A larger series of specimens will show that these difterences are individual rather than specific. Length 3 mm. ; .12 inch. 14. B. macra (Lee), Pac. R.R. Expl. and Surv. Ins. 58, (Bdridiufs); Pr. Ac. Nat. Sc. Phila. 1868, 362. San Francisco, Gal., three specimens. Nearly related to B. itpurm, and of the same narrow form. The pmthonvx is liowever more densely punc- tured, withiHit dorsal smooth line. The punctures of the interspaces of the elytra are very small, and upon the third are somewhat confused. Pro- sternum between the coxae not very wide, slightly longitudinally concave, but scarcely subsulcate. Length 3.5 mm.; .14 inch. 15. B. pruinosa, n. sp. Rather robust, ovalsubquadrate, black, pruinose with small narrow- white scales, some of which are hair-like. Head naked, nearly smooth; beak shorter than prothorax, stout, curved, punctured, pubescent, constrict- ed at base. Prothorax scarcely longer than wide, gradually narrowed from tlie base for two-thirds the length, then more rapidly to the tip, wbich is constricted on the sides; disc densely but not coarsely punctured, scutellar lobe larger than usual, emarginate; dor.sal line indistinct, or wanting. Ely- tra gradually a little wider than the prothorax, striae deep, in'.erspaces flat, wide, densely punctured. Beneath densely punctured. Front coxa- mod- erately separated, prosternum slightly concave, not sulcate. Club of an- tennse nearly round, with first joint slightly pubescent, but shining. Li ngth 4.5 mm.; .18 inch. Texas, Belfrage, not rare. The third joint of the tarsi is broader than usual, and the claws larger, thus showing a titinsition towards Onychobaru, but the club of the antenna? is of the present genus. ONYCHOBARIS n. g. Under this name I would group those species in which the club of the antennae is more oval, enth-ely sensitive and pubescent, the first joint form- ing less than one-half the mass; the second joint of the funicle not longer than the third; and the claws divergent and larger than usual. In other respects this genus agrees with Bttrk, and the species may be classified similarly, though the front coxa^ are usually much more widely separated than in Baru. LeConte.] BARINI. 295 Interspaces of elytra with rows of punctures 2, Interspaces of elytra densely punctured, and thinly pu- bescent 1. densa. 2. Prosternuni very wide between the coxae 3. " moderately wide between the coxae 6. 3. Black, glabrous, or nearly so = 4. Dull black, finely pruinose 2. subtonsa. 4. Prothorax without smooth dorsal line 3. pectorosa. " with broad dorsal line 4. distans. Much smaller and narrower 5. seriata. 5. Sparsely pubescent; very coarsely cribate 6. cribrata. Prothorax plicate, elytra with pattern of large narrow scales 7. rugicollis. 1. O. densa (Lee), Pr. Acad. Nat. Sc. Phil. 1859, 79; ibid. 1868, 362. San Diego, Cal., three specimens. Broader and less finely pubescent tlvan 0. subtonsa, wdth the prothorax more coarsely punctured and subra rinate; it is gradually narrowed in front from the base for two-thirds tl.e length, then rapidly narrowed to the apex, which is distinctly constric'ed. Head punctured in front, smooth behind. Striae of elytra deep, interspaces flat, irregularly punctured. Beak as long as prothorax and not stout; club of antennae oval, entirely pubescent and sensitive. Front coxae widely separated, prosternum flat, densely and coarsely punctured. Length 4 mm. ; .16 inch. 2. O. subtonsa, n. sp. Less robust, dull black, pruinose with very fine whitish pubescence, more evident on tlie elytra than on the prothorax. Head punctured ini liont, nearly smooth behind, beak longer than in. the preceding. Prothorax scarcely wider than long, sides parallel for two-thirds the length, then rap- idly narrowed and rounded to the apex, which is feebly constricted at the sides: disc densely punctured, each puncture with a small hair at the bot- tom; antescutellar lobe broad, not emarginate. Elytra scarcely wider than the prothorax, striae deep, interspaces flat, each with a row of small punc- tures. Front coxae widely separated; prosternum nearly flat. Length 4 mm.; .16 inch. Texas, Belfrage, one specimen. 3. O. pectorosa, n. sp. Ova*e, narrower behind, black, nearly glabrous above. Head sparsely punctulate; beak as long as the prothorax; rather slender, punctulate, much curved at base, frontal constriction deep. Prothorax larger than usual, wider than long, slightly narrowed from the base for two-thirds the length, then rapidly narrowed to the tip, which is constricted at the sides; disc rather closely but not coarsely punctured; scutellar lobe more promi- nent than usual, truncate. Elytra at base not wider than prothorax, grail- ually narrowed behind; striae deep, interspaces flat, each with a row of 236 CJinCUIAONIDM. [LeConte. strongly marked punctures. Prosternum very wide between the coxae, coarsely punc ured, wi h two slight longitudinal impressions in front. Length 4 mm.; .15 inch. Texas, Belfrage, one specimen. 4. O. distans (L-c), Pr. Ac. Nat. Sc. Phil. 1868, 363, {Baridim). New Mexico, Fendler, one specimen. Oval subquadrate, black, scarcely sliining, glabrous. Head sparsely punc ulate; b?ak punctulate, as long as the protliorax, not stout, r^;gularly and s rongly curved, fron al constriction feeble. Prothorax sudd:'nly narrowed, rounded on the sides in front, and constricted at I he sides near the tip; punctures distant on the disc, more dense towards tlie sides; smooth dorsal line very dis inc'. Elytra with deep stria?, interspaces tla*, ratlier wide, wi h rows of shallow dis ant punc- tures, which are more evid nt than usual. Pros ernum very wide between the coxse, cmrsely and spars.dy puuctured, broadly concave in front, with two small impressions. L "ngtli 3.3 mm.; .13 inch. 5. O. seriata (Lee), Pac. R. R. Expl. and Surv. Ins. 58; Pr. Ac. Nat. Sc. Phil. 1868, 363, {Burklim). San Francisco, Cal. ; one specimen. A small, shining black species of narrow form, resembling in this resp c' the next, as well as Baris t^parsa, and Pseudob'iris angusta. From the last two it is easily distinguisiied by tlie generic cliaracters; from 0. macra i. is readily known by the more dis- tant front coxte. Ths prosternum is as wide as in the two preceding spe- cies, flat and coarsely punctured, wi hout impressions. The third joint of tke tarsi is less broadly dilated. Head dull, feebly punctulate; beak as long as the prothorax, not stout, rugosely punctured, regularly curved, frontal constriction faint. Pro bo- rax scarcely longer than wide, sides rounded in front, and scarcely con- stricted; punctures strong, and dense, without smooth dorsal line. Elytra with rather narrow striae, interspaces flat, each with a row of small distant punctures. Length 2.5 mm. ; .10 inch. 6. O. cribrata, n. sp. Elongate, brownish black, shining, sparsely clothed with ra+her cf)arse wjiite reclinate hairs. Head smooth, beak short, not longer than the pro- thorax, stout, curved, punctured, strongly ccuistricted at base. Prothorax quadrate, wider than long; sides parallel, suddenly narrowed and rounded near tlie lip; very coarsely punctured, and smooth dorsal line narrow, but distinct. Elytra a little wider than the prothorax, sides parallel, rounded at the tip, stria3 deep, interspaces narrow, each witli a row of rather distant small punctures, from which proceed white hairs. Benea'h coarsely punc- tured, punctures becoming smaller and dis ant upon the abdomen. Length 3.3 mm.; .125 inch. Texas, Belfrage, two specimens. The front coxne are moderately dis- tant, as in most of the glabrous species; the prosternum is slightly concave. The club of the antennaj is short oval, and the first joint constitutes more than one half the mass and is somewhat shining. In the best preserved LeConte.] BAKINI. 2D7 .specimen the pubescenca is more dcns3 at the third interspace, and on the secjud t.) the fifth interspaces for a slijrt dis:auce beliind the middle. 7. O. rugicollis, n. sp. Oblong oval, brownis'.i-black, above \vi!h scattered elongate yellow scales, which on the elytra form an indefinite pattern of a transverse band at the base, and another just behind the middle connec ed by some less densely placed scales. Head convex, n 'arly smooth, beak as long as the pro hora.v:, attenuated towards the tip, strongly curved, punctured, fr,)ntal oonstrictijn d ep. Prothorax wider than long, feebly narrowed from the base for two thirds tin length, rounded on the sides, slightly constric ed near the tip; very deeply and oarsely rugose, leaving narrow eleva'ed folds, much as in RhyssematuH; there are a few scattered yellow hair like scales; base scarcely sinuate. Elytra a little wider at base than the protho- rax, gradually nai'rowed be'.iind, scarcely separately, but almost conjointly rounded at tip; s'.rite deep, interspaces flat, each with a row of small dis- tant punctures. Prosternum very broad between the coxae, coarsely punc- tured, mark:'d in front with two lines converging behind, and enclosing a smooth triangular space. Club of antenni3e small, oval rounded, pubescent; claws divergent. Length 4.2 mm.; .17 inch. ]\Iiddle and Southern States. The pygidium is less exposed than usual, but is perpendicular, so that this species cannot be confounded with Cen- trinus, in which it is nearly horizontal, or at most oblique. PSEUDOBARIS n. g. The species of this genus have the second joint of the funicle no longer than the third, and the club not larger, oval, with the first joint pubescent and sensi ive, and constituting less than one-half the mass; the claws are approximate and slightly connate at base. In these respects they agree with I'richoharis, but differ by the front coxae being very widely sepa- rated, and by the absence of dense scaly or hairy vestiture, though there are a few scattered scales on the elytra of each species. The prosternum is broadly sulcate in front; the limits of the groove are less sharply defined as in Aulobaris. Body elongate-oval, punctures of interspaces in rows 2. " stouter convex, confused 1. farcta. 3. Elytral punctures large, shallow 3. " " small 4. 3. Prothorax with sides slightly oblique 2. nigrina. " " " nearly parallel 3. angusta. 4. Side piec ■« of body densely squamose 5. " " " not squamose 4. pusilla. 5. Bi'own, pro'horax with smooth dorsal line 5 albilatus. Black, prothorax without dorsal line 6. T-signum. 1. P. farcta (Lee), Pr. Ac. Nat. Sc. Phil. 186S, 362, (Baridim). Kansas, Colorado, and Texas. A robust convex species, having the ap- PHOC. AMEK. PUILOS. SOC. XV. 96. 2r, 298 curculio:n^id^. [LeConte. pearance of Centrinus. The prosternum is broadly and tolerabl}' deeply sulcatc, thus showing a tendency towards Aulobaris, wliich it resembles in appearance, though the limits of the groove are ill-defined. The second joint of the funicle is however no longer than the third. The base of the third interspace of the elytra has a small scaly spot, and there are also scat- tered hair-like scales. The stri* are deep, the punctures of the interspaces are transverse and rather confused. Length 4-5 mm.; .16-20 inch. 2. P. nigrina (Say), Cure. 31; ed. Lee. 1, 295, (Baridius); Boh., Sch. Cure, iii, 690; Boh., ibid, viii, 154; Lee, Pr. Ac. Nat. Sc. Phil. 1868, 363. Southern States. The white scales are very sparse, and easily removed; they are arranged singly upon the interspaces, except at the base of the third interspace, where they form a small spot. The prosternum is broadly and deeply sulcate; the groove is sparsely punctured, and sharply limited. Length 3-4 mm. ; .12-16 inch. 3. P. angusta (Lee), Pr. Ac. Nat. Sc. Phil. 1868, 363, (Baridim). This species, from the material now at my command seems separable from P. nigrina only by its narrower form, the sides of the prothorax nearly parallel behind, and by the entire absence of smooth dorsal line of the pro- thorax. Specimens from Texas which are clearly referable to P. nigrina, vary in the last mentioned character, the dorsal line being either distinct or obsolete, so that only the form of body remains to distinguish th;'m apart. Length 2.7-3.3 mm. ; .11-. 13 inch. Illinois to Kansas. In one specimen a few scales remain, indicating a vestiture similar to the preceding. On re-examining the specimens I find my former observation that the second joint of the funicle is longer than the third is incorrect. 4. P. pusilla (Lee), Pr. Ac. Nat. Sc. Phil. 1868, 368, {Baridim). New York, one specimen. Allied to P. nigrina, but more oval and less elongate, with the punctures of the prothorax less coarse, and without smoo h dorsal line; the sides are also more oblique. Head and beak sparsely finely punctured; the latter as long as the prothorax, rather slender, very slightly curved. Elytra with deej) slri«, and rather wide flat interspaces, each with a row of fine but distinct punctures; the specimen is rubb-'d, but a few white scales are visible at the base of the third interspace, wiiich in- duce me to believe that in well preserved specimens they are scattered as in the preceding species. The prosternum is broadly and strongly sulcate, and sparsely punctured, but the edges of the groove are less sharply defined than in P. nigrina. Length 2.5 mm.; .10 inch. 5. P. albilatus, n. sp. Elongate, brown, shining; with a small elongate spot at the base of the third interspace, and the side pieces of meso- and metathorax densely clothed with white scales. Beak punctured, feebly striate near the base; head finely punctured. Prothorax a little longer than wide, rounded on the sides in front, not constricted at tip; disc coarsely, rather dens ly punc- tured, with a narrow smooth dorsal line. Elytra not wider than the pro- leConte] BAUmi. 299 thorax, s'ruE narrow, deep, iraiiunctured; interspaces flat, each with a row of extremely small puucLUies; third interspace clolhed for one-fifth the lengtli with white scales. Beneath strongly punctured; sides of the last three ventral segments clothed wiJi white scales. Length 2-3 mm.; .08 -.12 inch. Enterprise, Florida; Messrs. Hubbard and Schwarz. The specimens are somewhat abraded, but in one of them I observe scattered whiie scales re- maining on the pi'othorax and elytra. It is quite probable, therefore, that well preserved individuals are marked as in the next species, from which it differs chiefly by the larger size, brown color, smooth dorsal stripe on the prothorax, and fine punctures of the interspaces of the elytra. a. p. T-signum (Boh.\ Sell. Cure, viii, 1st, 154, (Baridius). Sou;h Carolhia, Zinimermann; Florida, Hubbard and Schwarz. Much smaller and still narrower than P. nigrina. ' Head finely punctulate, beak stout, strongly curved, as long as the prothorax, punctured, frontal con- striction feeble. Prothorax scarcely longer than wide, subquadrate, sides not oblique, feebly rounded for three-fourths the length, then more suddenly rounded and narrowed to the tip, densely and strongly punctured, without dorsal line. Elytra wider than the prothorax, humeri oblique, distinct; striae deep, interspaces flat, each with a row of flne but distinct punctures; a short line of while scales at the base of the third interspace, (and a small spot behind the middle, probably rubbed off in the specimen before me), metasternal side pieces and of the last ventral segments clothed with small white scales. Prosternum not so wide between the coxa; as in the other species, broadly and less deeply sulcate in front, club of the antennte rather larger than usual. Length 2.2 mm.; .085 inch. In well preserved specimens the surface is clothed with scattered, small white scales, which are more dense at the sides of the prothorax, at the base of the third interspace of ihe elytra, and the side pieces of the meso- and metathorax, and at the sides of last three ventral segments. These scales are however easily abraded. AMPELOGLYPTER n. g. This genus contains species which depredate on the small stems of grape vines and allied plants, producing excrescences. Two of them are readily distinguished from the preceding genera by the smooth and shining surface of the elytra, the interspaces of whleh are wide and not punctured; the striae are fi.ne, the posterior callus promment, and the surface undulated by broad transverse impressions. In these respects they resemble Madams, but differ by the shorter and stouter beak, the stouter antennae, and the broadly excavated prosternum, which is not suddenly declivous between the coxae. The front thighs are not toothed, and the claws are connate at base . The form is also quite different from Madams; the elytra are a little wider than the prothorax, as in Darts. 300 CURCULIONID^. [LeC.nte. The front coxae are very widely separated; tlie transvere suture between the coxaj is very well marked, and the prosternuni is widely, hut not deeply excavated; club of antenna? elongate-oval, annulated, pubescent. Three species are known to me: Elytral striie not punctured; Brown, prothorax obliquely narrowed from the base 1. s3SOStris. Black, " suddenly " near the tip.. 2. ater. Elytral striae crenate; body elongate, brown, opaque. .. . 3. crenatus 1. A. Sesostris (Lee), Pr. Ac. Nat. Sc. Phil. 1838, 364 (Barid'us); Walsh, Am. Entomologist, ii, 105. Madurus vitis Riley, 1st Missouri Re- port, 131. Western States, on cultivated vines. Somewhat narrower than the next, and easily known by the brown color and ditierent form of the jjrotliorax. Head scarcely punctulate, beak as long as the prothorax, sliglitly curved, feebly punctured, fi-ont constriction faint. Prothorax as long as wide, sparsely punctured, with a smooth dorsal line, sides oblique from the base for more th->n one-half the length, then rounded and narrowed for a short distance, and then broadly constricted at a greater distance than usual from the tip. Elytra very little wider than the prothorax, with a vague trans- verse impression near the base, and two others near the sides; posterior callus sniidl, rather prominent; strite fine, interspaces wide, flat. Beneath coarsely punctured. Length 3 mm. ; .12 inch. 2. A. ater, n. sp. Very black, shining; beak stouter and more curved than in the prece- ding. Prothorax more sparsely punctured, more rugose at the sides, which are scarcely narrowed for two-thirds their length, then very suddenly rounded, and constricted far from the tip. Elytra a little wider th-an the prothorax at base, sculptured and impressed as in the preceding. Length 3 mm.; .12 inch. Southern and Western States, on Ampelopi^in quiyiquefoUa. Mentioned as Madams ainpelopsis by Walsh and Riley, loc. eit. sup., but not described. 3. A. crenatus, n. sp. Elongate, dull ferruginous, opaque. Beak curved, as long as the head and prothorax, punctured; head not punctured. Prothorax subquadrate, sides parallel, rounded near the tip, and strongly constric ed, base bisinu- ate; densely and coarsely punctured, constriction nuirked on the sides with a transverse row of larger punctures. Elytra a little wider than the pro- thorax, sides parallel, surface broadly impressed behind the base; striae deep, very coarsely punctured, interspaces narrow, third and ninth carinate near the tip, and confluent, so as to leave a deep fovea between their junc- tion and the posterior callosity, which is well marked. Beneath coarsely punctured, less so upon the abdomen; fifth ventral less convex and less densely punctured than in the two pi'eceding species. Claws small, con- nate for half their leng'.h. Length 2.8 mm.; .11 inch. Virginia, and Maryland; two specimens. Narrower even than Fseudo buris anguHta. LeContc. BAKIXl. 301 MADARUS Sell. In this genus the upper surface is very smooth and shining, and the sur- face of the elytra undulated, but the beak is longer than the prothorax and slender, almost as in Cenfriiius; the antenntt are longer and more slender, the first joint of the funicle as long as the three. following; club elongate oval, annulated, entirely pubescent. The prosternum is extremely wide and gibbous between the coxa?; declivous in front, not excavated, but, with two very short impressions. Front thighs armed with an obtuse tooth, claws approximate, but not connate at base. The preceding genus makes a gradual transition from Bm-ix to Madanos, and the arrangement of Lacordairc by which the genera just named are separated in two different subtribes is manifestly unnatural. 1. M. undulatus Boh., Sch. Cure, iii, 640; Bliynchmnus un-d. Saj', Journ. Ac. Nat. Sc. Phil, iii, 315; ed. Lee. ii, 177. Massachusetts to Alabama, Texas, and Kansas. The northern specimens are entirely black; those from the South and West have the j)rothorax red. Although Boheman described all the thighs as toothed, I find that the mid- dle and haul pairs are quite unarmed. The tooth of the front pair is rather large, but obtuse. Group II. t'eiilrliii. The only characters I can give for the recognition of this group, as dis- tinguished from Bari'des, are : the elytra conjointly rounded at tip, or nearly so ; the pygidium thus becomes entirely covered, or only partly exposed, and is nearly horizontal, or at most somewhat oblique, and never vertical. The last ventral is consequently regularly rounded at tip, never truncate or emarginate. In addition to these characters the ventral surface of the abdomen is more convex, frequently ascends obliquely, as in Zygo- ' pini, but in a much less degree. The tibial hooks are less developed than in B(tris and its allies, and in many species are scarcely apparent. The beak and antennae are generally of more slender form than in Baris, but these characters are not without excejitions, as will be seen below. A. Body without erect bristles. Tibiaj stout, with longitudinal grooves (as in Baris) 2. " slender, not grooved 3, 2. Pectoral groove shallow, indefinite PACHYB ARIS. deep, sharply defined STETHOBARIS. 3. Side margin of prothorax as usual 4. well defined MICROCHOLUS. 4. Third joint of tarsi broad, bilobed 5. narrow OALANDRINUS. 5. Claws separate CENTRINUS. " connate at base ZYGOBARIS. " sinde BARILEPTON. B. Body with stout erect bristles, intermixed with the dens ' covering of scales; tarsi narrow. Bristles very long EUCH^TES. " short PLOOAMUS. 302 CUKCULIONID^. [LeConte. PACHYBARIS n. g. A single glabrous species of very stout form and coarse sculpture repre- sents this genus. It has the characters of Onychobaris except that the elytra are conjointly rounded behind, so as to cover the pygidium, and the fifth ventral, though very transverse is broadly rounded behind. The beak is slender, longer than the head and i)rothorax, moderately curved, and striato-punctate, a character n(jt seen in any other of our species. The antenntB are stout, first joint of funicle elongate, second not longer than the third, remaining joint gradually stouter, merging into the club, which is elongate-oval, annulated and entirely pubescent. Prothorax broader than long, strongly but gradually narrowed from the base, rounded on the sides, scarcely constricted in front. Elytra very little wider than prothorax at base, humeral callus not prominent, gradually narrowed behind, con- jointly rounded at tip. Presternum rather broad between the coxae longitudinally slightly concave in front, with two short impressions con- nected at their anterior end. Legs rather stout, thighs unarmed, tibiae rather short, scarcely mucronate, marked with two fine lines and inter- vening ridge on outer surface; third joint of tarsi broadly dilated, last joint moderate, claws rather large, divergent. 1. P. porosus, n. sp. Broadly oval, black, moderately shining. Beak slender, punctured in rows, sides striate; head punctured, frontal constriction obsolete. Pro- tliorax strongly punctured, scutellar lobe large, emarginate. El5^tra very deeply striate, strise punctured, interspaces fiat, each with a row of large ujiproximate punctures, bearing verj^ short wliilish hairs. Beneath coarsely punctured. Length 3.7 mm. ; .15 inch. Enterprise, Florida, May 10th: Messrs. Hubbard and Schwarz. STETHOBARIS n. g. The single species of this genus is rather broadly oval, though less so than Pachyharis. The beak is as long as the head and prothorax, rather stout, curved finelj', punctulate; head distinctly punctured, convex, frontal constriction strong, eyes narrowly separated beneath; antennjB stout, first joint of funicle elongate, second not longer than third, the following gradually a little broader; club large, elongate oval, annulated, entirely pubescent. Prothorax broader than long, convex, rapidly narrowed in front and rounded on the sides, verj' strongh' and tubularly constricted near the tip. Elytra gradually wider than the prothorax at base, then rounded on the sides, and conjointly rounded at tip, covering entirely the pygidium. Front coxae rather widely separated, prosternum with a deep smooth shari^ly defined groove. Legs longer, rather stout, thighs not toothed, tibife faintly grooved, feebly armed at tip; tiiird joint of tarsi broadly dilated, last joint small; claws very small, approximate but not connate. LeConte.j BARINI. 303 1. S. ti'ibulatus. Campylorhynclms tub. Say, Cure. 20; ed. Lee. i, 285; Baridius ovatuK Lee., Pr. Ac. Nat. Se , Phil., 1868, 363. Middle, Southern and Western States. The prothorax is deeply but not very densely punctured, and the scutellar lobe is prominent, and subeniar- ginate; the dorsal line is faint, or wanting. The elytra are deeply striate, the stria? are punctured, and the interspaces are narrow, each with a row of fine but distinct punctures, bearing very short white hairs; beneath coarsely punctured, la.st ventral segment densely punctured. Length 2 ..5-3 mm. ; .10-. 12 inch. There may be some doubt about the reference of Say's name to this species in consequence of the expression, "interstitial lines flattened, and with a series of punctures each furnishing a recurved, whitish hair," which would seem referal)le rather to the genus Zaglypkis (p. 236) of the Ithyporu>i group of Cryptorhynchini. In other respects the description so well accords with the present insect, that I prefer sui)pre8sing the name pro- posed by me as a sjaionj'm, until some other insect occurs better suited to Say's description. In ease this should happen the name ovatus can be restored. MICROCHOLUS n. g. Form of body like Baris, but stouter and more convex, M'itli a few scat- tered white scales. Beak as long as the prothorax, curved, cylindrical, rather stouter towards the base, not striate, scarcely perceptibly trans- versely impi'essed at bass: head broad, convex, eyes widely separated, flat, finelj'' granulated, pointed beneath; antennal' grooves commencing nearly one-third from the tip, narrow, running obliquely downwards, almost confluent. Antennae with seven jointed funicle, first joint as long as the three following united, slender, slightly clavate in M. striatus and M- puncticoUift, shorter and stouter in 31. UnncolUs; second a little longer than third: 3-7 gradually slightly broader; club elongate-oval, pubescent, annu- lated towards the tip. Prothorax strongly narrowed in front, constricted at tip, sides rounded, flanks concave, so as to cause the lateral edge, though not acute, to appear well defined; base truncate; post-ocular lobes wanting: prosternum short, slightly concave, rather narrow between the coxae; mid- dle coxae moderately widely, hind coxae more widely separated, the latter not reaching the side of the bodf . Scutellum very small. Elytra truncate at has?, humeral angles rounded, a little narrower than the prothorax, sides rounded and obliquely narroAved behind; ])ygidium entirely covered by the conjointly rounded tips; disc very convex, striae sometimes indistinct. Mesosternum short, ventral segments slightly unequal, sutures scarcely curved. Thighs rather hmg and stout; tibiai rather short, sinuate, feebly mucronate; tarsi with third joint very broadly dilated and bilobed; last joint slender, with very small claws. Prothorax punctured, constriction near the tip 1, striatus. Elytra with Avell-marked stria^ 2. puncticollis. Prothorax smooth, constriction distant from the tip 3. Isevicollis. 304 CURCULIONm.E. [LeConte. 1. M. striatus, n. sp. Kobust, convex, black, tliiuly clothed with oval white scales, more densely placed on the under surface, but easily removed by abrasion, and of which but few remain in the specimen. Beak nearly smooth, feebly impressed transversely at base. Prothorax wider than long, sides oblique, rounded, very much narrowed in front, moderately constricted near the tip, sparsely finely punctured, punctures less distinct towards the sides, which are more obtuse than in the other two species. Elytra not narrower than the prothorax, gradually less narrowed beliind than in the other two species ; stria3 well marked, rather deep, interspaces broad, flat, each with a row of feeble punctures. Antennee with the first joint of funicle slender, much longer than the second. Beneath rather coarsely punctured, but not very deeply so on the flanks of the prothorax. Length 4.3 mm.; .17 inch. One s])ecimen. Lake Harney, Florida, May 4th; Messrs. Hubbard and Schwarz. Probably a female, in which case the male would have the pro- thorax wider and more rounded on the sides, and the lateral edge more compressed. 2. M. puncticollis, n. sp. Robust, very convex, black, uniformly, but thinly clothed with silvery white oval scales, more densely placed on the under surface. Head gla- brous behind the eyes, punctured in front, nearly smooth behind; beak punctured, scaly, not impressed at base; front scaly. Prothorax wider than long, strongly rounded on the sides, hind angles rounded, lateral edge nearly acutely defined; strongly narrowed in front, and rather strongly constricted near the apex, which is scarcelj^ one-half as wide as the base; disc strongly punctured, more densely towards the sides, with a broad, smootli dorsal space. Elytra narrower than tl)e prothorax, broadly but obliquely narrowed on the sides; stritc fine, in some places indistinct, in- terspaces broad, sparsely irregularly punctulate. Antenna? witli the first joint of funicle twice as long as the second, which is longer than the third. Beneath rather coarsely punctured; punctures of the flanks of the protho- rax equally deep. Length 3.7 mm.; .15 inch. Baldwin, Florida, June 10; many specimens; Messrs. Hubbard and Schw'arz. 3. M. Isevicollis, n. sp. Robust ovate, very convex, almost gibbous, black, shining (sparsely squamose, with linear white scales, which have been mostly removed by abrasion). Beak sparsely punctured, feebl}' transversely impressed at base; head convex, sparsely punctulate in front, smooth behind. Prothorax twice as wide as long, very convex, strongly narrowed in front, sides obliquely narrowed, very strongly constricted about one fourth from the apex, which is half the width of the base; the latter is not truncate, but very Iroadly rounded; surface feebly and sparsely punctulate, lateral edge nearly acutely defined. Elytra not narrower than the prothorax at base, LeC'ontc. bari:n^i. 305 basal angles not rounded, sides gradually narro-^ed and slightly rounded to the tip; striae fine, feebly punctured, ending near the base in deep fovc?e; intersi)aces broad, flat, smooth. AntenniB with the first joint of fnnicle scarcely longer than the second, but somewhat stouter than in the other two species. Length 2.3 mm. ; .09 inch. St. Louis, Missouri; one specimen; Mr. M. Schuster. The prothorax is more rapidly' narrowed in Iront and more strongly tubulate than in any other Curculionide known to me in our fauna. CALANDRINUS, n. g. The small insect which constitutes this genus bears a singular resem- blance in miniature to Sphenophorits, but is clothed with scale-like hairs, as in Centrinus. pjeak slender, cylindrical, curved, as long as the head and prothorax, sep- arated from the head by a transverse constriction; head rather large, con- vex; eyes distant, flat, pointed beneath, finely granulated; antenna! grooves descending obliquely towards the lower angle of the eyes. Antenme with the scape not attaining the eyes; funicle 7-jointed, first joint as long as the second and third united, but scarcely stouter; second longer than third; 3-7 giadually wider, merging into the club, which is elongate-oval, pointed, pubescent and annulated. Prothorax two-thirds as long as the elytra, longer than wide, rounded on the sides, a little wider near the middle, nar- rowed before the middle, constricted, but not tubulate towards the apex ; base broadly bisiuuate, basal angles slightly obtuse, scutellar angle very broad; postocular lobes wanting; prosternum long in front of the coxie, which are rather widely separated; scutellum very small, punctiform. Elytra elongate-oval, a little wider than the prothorax, sides rounded, forming an obtuse angle with the sides of the prothorax; stri* deep, not punctured ; tips conjointly rounded, covering entirely the pygidium. Middle and hind coxae widely separated; metasternum short, ventral seg- ments unequal, sutures angulated at the sides; fifth segment as long as the two preceding united. Thighs moderately long; tibi* strongly unguicu- late at tip; tarsi narrow, third joint scarcely wider than second, uotbilobed, last joint as long as the others united, claws simple, divergent, rather large. It is singular to find in this genus a recurrence of the narrow tarsi already so frequently noticed in other tribes, without any important strucLural modification, but with an outline of body suggestive of a very diflerejit type. 1. C. grandicollis, n. sp. Piceous, clothed with hair-like and narrow pale scales ; beak, antennae and legs brown. Beak not punctured, head sparsely punctured, with a larger frontal puncture. Prothorax coarsely punctured, with an elongate, smooth dorsal spot, attaining neither base nor tip; apical margin also smooth. Elj'tra with deep impunctured striae, interspaces flat, each with a row of deep punctures; third interspace wider, with the punctures con- fused. Beneath coarsely punctured. Length 3 mm.; .12 inch. PKOC. AMER. PHIL08. SOC XV. 96. 2m 306 CURCULIOXID.^. [LeConte. One specimen, collected by me near the Rocky Mountains. The scales are partly abraded; on the elytra they remain only at the base and near the extremity of the fourth to the seventh interspaces. CENTRINUS Sell. After separating a certain number of species, wliicli seem to indicate distinct and well defined genera, there remains a tolerably numerous mass, which, although not entirely homogeneous, consists of species having in common the following characters. The study of foreign species may per- mit at a future time a fiirther subdivision, but the transition between the extreme forms seems so gradual, that I am unwilling, with my present knowledge, to indicate the 'manner in which this may be effected. The beak is long and slender, cylindrical, and usually curved, but some- times nearly straight; tlie antenna! grooves commence about the middle, descend obliquely, and are wider, deeper and confluent behind. Mandi- bles small, flattened, pointed, prominent, and without teeth. Antenna; rather slender, funicle 7-jointed, joints 1-3 varj'ing in length, 4-7 equal in lengtli, not passing into the club, which is oval, somewhat pointed, pu- bescent and annulated. Prothorax narrowed and more or less constricted in front, without postocular lobes; prosternum long in front of the coxa?, which are rather widely separated; not emarginate in front, impressed or not, according to species. Elytra sometimes elongate with parallel sides, though usually narrowed from the humeri, so as to give a rhoniboidal form of body; posterior callosity feeble, tips usually conjointly rounded, some- times separately rounded, exposing in the latter case a small part of the pygidium, which is, however, horizontal, and not vertical, as in Ban's and its allies. The middle and hind coxse are widely separated; metasternuni rather short, with wide episterna in the rhoniboidal species; longer, with narrower episterna in the elongate species; but in both cases distinctly wider liefore and behind. Ventral surface ascending in some species, nciU'ly horizontal in others; first and second joints longer than thii'd and fourth ; fifth sometimes longer, sometimes not longer than the fourth ; first suture subsinuate, the others strongly angulated at the sides. Thighs unarmed, tibioe not striate on the outer side, very feebly mncronate at tip; tarsi with the third joint very broad, bilobed, last joint long, with stout, divergent claAvs. In the males of several species the prosternum just in front of the coxa? is armed with a slender process, which varies in length according to the in- dividual, but not according to species. A. Ehira separately strongly rounded at tip; pygidium partly exposed; posterior edge of pi-othorax deeply emarginate beneath in front of niesosternum. Black, densely punctured ; above pruinose, with fine scales or hairs, beneath scaly; scutellum clothed with white scales 1. scutellutn-album. Lc'Jonte.l BAEINI. 307 B. Elytra conjointly rouncled at tip, or nearly so; pygkluim not exposed, orrery slightly visible; posterior edge of prothorax usually emargi- nate in front of niesostcniuni;* form subrkomboidal, side pieces of nietathorAx wide. Emargiaation of hind margin of prothorax «niall 2. Eninrgination of hind margin of prothorax deep; body densely clothed with coaree capillary scales; elytra souietimes with denuded spots. . . 2. penicellus. 2. Prothorax tubularly constricted in front 3. " moderately '■' -^ " 5. Be mm. ; .12 inch. Florida and Texas; two specimens. l"). O. linsicollis Boh., Sch. Cure, viii, 1st, 331. Illinois, Texas, South Carolina, also occurs in Mexico. An elongate species, thinly clothed with small, narrow, gray scales, which are almost hair-like on the upper suface; and rather dense at the middle and sides of the prothorax; on the elytra they are arranged in single series on each in- terspace. The beak is as long as the prothorax, curved, sparsel}^ punctured, and striate at the sides. Prothoi-ax densely punctured, longer than wide, feebly constricted near the tip. Elytra conjointly rounded at tip, stria3 deep, in- terspaces rugosely punctured. Prosternum transversely impressed in front, not emarginate behind; front coxae only narrowly separated; metathoracic side-])ieces rather narrow ; fifth ventral nearly as long as third and fourth united. Funicle of antennse rather stout; first joint as long as the two following; second a little longer tlian the third. Length 3.5 mm.; .10 inch. FROG. AMER. PHILOS. SOC. XV. 96. 3n 314 CURCULIONID^. [Le'.'onte. •16. C. punctiger, n. sp. Elonga'e oval, narrowed before and behind, dull black, nearly glabrous above. Beak brown, as long as the prothorax, slender, curved, puncured towards th? base, frontal impression distinct. Prothorax as wide as long, much narrowed in front, broadly but not abruptly constric'.ed, sides rounded; disc coarsely and d.^eply punctured, dorsal line narrow. Elytra with deep punctured striae, interspaces each with a row of deep punctures; tips nearly conjointly rounded. Beneath coarsely and densely punctured, scarcel}^ pubescent; prosternum convex, very deeply constricted in front, not emarginate behind; front coxae widely separated; metathoracic side pieces rather narrow; fifih ventral nearly as long as third and fourth united. Legs and antennne brown, funicle rather slender; second joint scarcely longer than third; club rather shining for half its length, annulated only towards the tip. Length 3 mm-; .12 inch Texas, Belfrage; one specimen. By the structure of the antennnl club this species approaches Baris, but the beak and antennae are slender, and the ventral segments are those of the present genus- 17. C. nasutus. Baridius nasutus Lee , Pr. Acad. Nat. Sc. 18o9, 79. Tejon, California; two specimens. Beak slender, curved, punctured and striate; prothorax longer than wide, broadly rounded on the sides, narrowed in front of the middle, feebly constricted near the tip; rather closely punctured, shining, sparsely pubescent. Elytra with deep punctured striae, interspaces with single rows of small punctures and very fine hairs; tips conjointlj^ rounded. Beneath not coarsely but rather densely punctured. Prosternum transversely impressed as usual, not emarginate behind; front coxa3 widely separated; metathoracic side pieces rather narrow; ven- tral segments less punctured, with a small cusp at the middle of the hind margin of the first, where the suture is effaced; fifth segment as long as the third and fourth, more densely punctured. Antennae with the second joint of funicle a little longer than third. Length 4 mm.; .16 inch. I refer to this species a much smaller specimen (2.5 mm.; .10 inch) from Texas. 18. C calvus, n. sp. Elongate oblong, dull black, thinly clothed with fine, short hairs, which, on the under surface, become scale-like. Beak as long as the prothorax, not slender, slightly curved about the middle, nearly straight at base and tip, strongly striate and punctured; front not transversely impressed; head feebly punctulate. Prothorax scarcely wider than long, sides nearly straight and parallel for more than half the length, then suddenly rounded and tubularly constricted; surface densely, not coarsely punctured, with indistinct dorsal line; base nearly straight. Elytra but little wider than the prothorax, sides parallel behind the humeri, then broadly rounded; tips separately rounded, exposing a small part of the pygidium, which is slightl}' declivous, but by no means vertical; stri« deep, scarcely punctured, interspaces wide, confusedly and rugosely punctured. Beneath, rather LcC)iit(?. BARTISri. densely, n )t coarscl}^ punctured; prosteniuiu rather flat, less deeply ini- l^ressed in front than usual, very slightly emarginate behind; hind margin not emarginate; front coxse moderately widely separate; nietathoracic side pieces rather narrow; fifth ventral segment as long as the two preced- ing; second joint of funicle longer than the third. Length 4.5-5.3 nun.; .18-21 inch. (^. First ventral segment flattened and slightly concave at the middle; prosternum without spines. 9- Ventral surface convex, not impressed; form a little stouter; bc\ak more slender, less deeply sculptured. Georgia and Florida; two specimens. The description is drawn from the (J^, which is the larger specimen. 19. C. rectirostris, n. si>. More elongate, black, nearly glabrous, shining. Beak longer than tlie head and prothorax, nearly straight, slender, sparsely punc ured, with a small basal indentation ; hvad convex, feebly punctulate. Prothorax scarcely longer than wide, slightly narrowed from the base forwards, then more narrowed and rounded, broadly constricted near the tip ; surface sti-ongly punctured, dorsal line narrow, distinct. Elytra a little wider than the prothorax, sides parallel behind the humeri, then rounded; tips sepa- rately rounded, exposing a small par:^ of the pygidium; stride deep, narrow, interspaces wide, finely rugosely punctured. Beneath slightly pubescent, not coarsely punctured; more sparsely on the first and second \entral seg- ments. Prosternum transversely impressed in front, not emarginate be- hind; front coxie moderately widely distant; metathoracic side-pieces not very narrow; fifth ventral segment as long as the two preceding united. Funicle of antennai slender, second joint nearly as long as the first. Length 4.8 mm.; .19 inch. South Carolina and Illinois; three specimens. I have adop'ed the name given to it by Dr. Zimmermanii. The beak of the (^ is mare strongly punctured and striate, and a little shorter. 20. C. falsus, n. sp. Elongate oval, dull black, clothed not very densely with narrow yellow- ish scales, which are broader and paler on the under surface. Beak as long as the head and prothorax, more carved at the base, not very slender, strongly punctured (f*); sparsely punctured ( 9 ); head punctured, front with a small fovea, not transversely impressed. Prothorax wider than long, slightly narrowed from the base, rounded and feebly constricted towards the tip; densely and strongly punctured; dorsal line narrow, dis- tinctljr elevated; hairs transversely arranged, base nearly straight. Elytra slightly separately rounded at tip, apex of pygidium exposed; sti'ine deep, interspaces wide, densely and confusedly punctured, hairs not arranged in rows. Beneatli densely punctured, prosternum transversely impressed as usual, and longitudinally concave ; apical part foveate, and with a small ridge each side of the fovea; hind margin not emarginate; front coxae mod- 316 CURCULIONID^. [LeConto. crately distant, metatlioracic side pieces rather wide, fifth ventral segment hardly longer than the fourth. Funicle of autennse slender, first joint as long as the three following ; second a little longer than the third ; club less elongate, stouter, pubescent, less distinctly aunulated. Length 4 mm. ; .16 inch. Middle and Southern States; four specimens. 21. C longulus, n. sp. Tliis species closely resembles C. faltu<>, but is still more elongate and clothed with hair-like scales both above and beneath. The prothorax is not wider than long, and is less constricted at the tip ; the punctures are less dense, and the dorsal line is indistinct. The prosternum is more dis- tinctly sulcate, and the fifth ventral segment is distinctly longer than the fourth. Length 4 mm.; .10 inch. Texas. Belfrage; one ^. The beak is nearly smooth, punctured only towards the base. The first ventral segment is slightly flattened. 22. C. concinnus, n. sp. Elongate, black, with a slight bronzed tint, thinly clothed with white hairs, becoming capillary scales beneath. Beak as long as the protbon^x, slightly curved, frontal impressicm distinct. Prothorax a liule longer than wide, narrowed and feebly constricted in front, coarsely but not deeply punctured, finely alutaceous. Elytra parallel, conjointly rounded at tip; striie fine, interspaces wide, feebly punctulate. Beneath rather coarsely punctured; ])rosternum with two small fove* near the tip; not emargiaate ))ehind; front coxye moderately distant; metatlioracic side pieces narrow, fifth ventral segment longer than the fourth. Funicle of antenna.' ra her stout and sliort, sec. )nd joint not longer than third. Length 1.8-2.5 mm-; .07-10 inch. New York, Florida, Texas. The beak is striate and more deeply punc- tured in the c^- 23. C. confusus Boh., Sch. Cure, iii, 740; Mann., Bull. Mosc. 1843, 2d, 293. Southern and Western States ; also found in California, according to Mannerheim. Elongate, dull black, thinly clothed with white hairs, which are very small and inconspicuous above, and scale like beneath. Beak as long as the prothorax, slender, slightly curved. Protliorax strongly and densely punctured; dorsal line narrow, smooth; sides slightly oblique, rounded in front, and feebly constricted. Elytra with deep stri;t, intersjiaces strongly punctulate, tips conjointly rounded. Beneath coarsely punctured, prosternum with a rounded impression near the tip; not emar- ginate behind; frjnt coxse moderately separated, metatlioracic side pices rather narrow; fifth ventral segment a li;tle longer than the fourth. Funi- cle of antennae stout, second joint scarcely longer than third. Length 2.8 mm. ; .11 inch. (^. Pros'-ernum armed each side in front of the cox* with a long straight LeCoute.] BARIXI. 317 horn; })eak mor3 distinctly punctured and striate. Varies with the horns shorl. 9. Prosternum flattened, but without horns; Leak smonther, punctured towards the base. Two larger sp:'cimens from Florida have the prothorax less densely punc- tured, and the fiftli ventral as long as the third and fourth united; in the r^ the horns are merely short acute cusps. They may indicate a disJnct species, but I pr.'fer not to d.?finj it as such for the present. 24. O. prolixus, n. sp. El.>ngat(', shining black, with a slight bronzed lustre, nearly glabrous above. Beak slender, slightly curved, as long as the protlu)rax; frontal impression wanting. Prothorax as wide as long, narrowed in front tyid rounded upon the sides, broadly but not deeply constricted in front; disc less convex than usual, sparsely punctured. Elytra very elongate, parallel, con- jointly rounded at tip; strise fine, interspaces wide, with small distant fine punctures; disc vaguely impressed behind the base. Beneath slightly pubes- cent, not deeply punctured, prosternum broadly concave, with a small square impression near the tip; front coxai not widely separated; metathoracic side pieces narrow ; ventral segmens very sparsely punctured; fifth as long as the third and fourth united. Funicle of antennae rather slender, second joint hardly longer than third. Length 4 mm.; .15 incli. Massachusetts and Illinois; tliree specimens. Somewhat r sembles G- rectirotitris, but is smaller, and quite different by the characters given above. 25. C. confinis, n. sp. This species exactly resembles C- concinnu>i in size, form and sculpture, . but difiei's by the finer pubescence, which is almost inconspicuous on the upper surface, and by the prosternum having one small but deep round fovea near the tip, instead of two approximate ones. Length 2.3 mm.; .09 inch. New York; one specimen. ZYG-OBAKIS n. g. Body resembling in form a small rolnist Centrinus Ce. g. picumnus), but very coarsely sculptured and not densely clothed with scales. Beak as long as tiie head and prothorax, slender, cjdindrical, curved; not trans- versely impressed at the base; antenTial grooves commencing nearly one- third from the tip, descending obliquely; eyes rather large, transverse, not convex, finely granulated, front not wider than the beak ; liead rather small. Antennai with the first joint of funicle elongate, and stou*er than the second; 2-7 gradually stouter, merging into the club, which is elongate- oval, pointed, pubescent and regularly annulated, the basal joint not being undulj" large. Prothorax stronglj^ narrowed in front, feeblj' constricted, and wi'hout postocular lobes ; base Insinuate ; prosternum long in front of the coxaj, which are widely separated, impressed near the front margin. 318 CURCULIOXID.^^.. [LeConte. Elytra wider at base tlian the prothorax, humeri rounded, sides obliquely uarrowed behind the humeri, tips conjointly rounded; pygidium entirely covered. Middle and hind coxae widely separated, metasternum longer than first ventral, first and second ventral segmen's each equal to the third and tburtli united; the fifth but little longer than the four;h; first ventral suture parti-illy etfaced, second and third slightly angulated at the sides. Legs rather long, tibite nioderatelj^ mucronate at tip; tarsi with third joint very ])road, bilcbed; last joint rather long, with the claws small; connate at base. Shining black, elytral striiE very coarsely punctured 1. nitens- Dull black, elytral striie deep, impunctured 2. conspersa. 1. Z. nitens, n. sp. Robust, subrhomboidal, shining black, thinly sprinkled with small white scales. Beak strongly punctured, a little longer than the head and pro- thorax, slendiT, curved, not thicker at base, where it is slightly constricted. Prothorax very coarsely but not densely punctured. Elytra with fine strife, marked with large, distant punctures, interspaces nearly flat, each with a row of equally large but more distant punctures. Beneath very coarsely punctured ; claws connate for more than half their length. Length 3.5 mm.; .10 inch Key West, Florida; one specimen, Mr. Burgess. 2. Z. conspersa, n. sp. Less robust, subrhomboidal, dull black, moderately densely clothed with yellow-brown hair, with rows of small distant white scales upon tl-.e elytra. Beak stouter than in the preceding, slightly thicker at base, cylindrical, curved, not longer than the prothorax, not impressed at base; finely punc- tured and pubescent. Prothorax not wider than long, gradually narrowed in front, sides nearly straight, slightly rounded near the tip ; surface strongly and densely punctured; base bisinuate. Elytra wider behind the base, humeri obliquely rounded, strife deep, interspaces elevated, flat, not very wide, densely punctured. Beneath punctured, rather densely clothed with pale brown scales; claws approximate, small, slightly connate at base. Length 2 mm. ; .08 inch. Illinois; B. D. Walsh; seven specimens. The funicle of the antennae is s'outer than in the preceding, and the club is less elongate. The general form is less robust and more rhomboidal. BARILEPTON n.g. Body very elongate, nearly filiform, clothed with pale scales. Beak not slender, as long as the prothorax, suddenly curved near the base, then very slightly curved; base somewhat stouter, feebly impressed; head large, con- vex. Antennal grooves commencing about the middle, deep, descending obliquely. Antennte with funicle 7-jointed, first joint elongate, stouter than the second; 2-7 nearly equal in length, gradually wider, club rather large, oval, pubescent, annulated. Prothorax a little longer than wide, LeConte. BARINI. 319 sides parallel, rounded, and feebly constricted near the tip; base nearly straight- .Elytra elongate, very little wider than the prothorax, conjointly rounded at tip, pygidium completely covered. Prosternum moderately long in front of the coxse, which are very slightly separated; mescsternum rather narrow, metasternum long, hind coxte widely separated. First, second and fifth ventral segments long, third and fourtli together a little longer than tlie second; first suture parti}' obliterated at tUt; middle; the others are distinctly curved at the sides. Legs rather slender, tibi* feebly but distinetljf mucronate; tarsi with the third joint very broad, bilobed, last joint rather long, with a single claw. 1 B. filiforme, n. sp. Elongate, nearly filiform, black, clothed with small pale scales. Beak naked, shining, punctured; head thinly pubescent, punctulate. Prothorax rather densely, but not very strongly punctured, with the scales lying transversely, as in many Centriims- Elytra with fine striae, and flat, alu- taceous interspaces. Legs brownish- Length 2.5-3.3 mm.; .1C-.13 inch. Virginia, Illinois, Nebraska; three specimens. EUCH^TES n. g. Body resembling in form a r.)bust Centriivux, but with comparatively larger prothorax, more rounded on the sides; covered with a deiise crust of dirt-colored scales, and with very long stiff erect bristles. Beak nearlj^ as long as the body, much stouter from the base to the insertion of the antennae, then slender and strongly curved for the remaining two-thirds of the length, base constricted beneath, and somewhat protuberant; anten- nal grooves confluent behind; eyes transverse, finely granulated; head im- mersed in prothorax nearly to the eyes. Antenna? with the scape extend- ing to the eyes, gradually thickened externally; funicle 7-jointed slender, longer than the scape; first and second joints longer, equal; seventh broader, rather closely connected with the club, which is elongate-oval, pubescent, and indistinctly annulated. Prothorax rounded on the sides, slightly bisinuatc at base, narrowed and tubularly constricted at tip, with- out postocular lobes. Scutellum larger than usual. Elytra narrowed be- hind, tips separately rounded, pygidium not exposed. Prosternum trun- cate in front, stronglj' impressed transversely, not foveate, nor flattened; front coxoe very widely separated; middle and hind coxse very widely sep- arated; side pieces of mesothorax of the same form as in CentrliiHs; those of the metathorax narrow. First and second ventral segments very large, third and fourth united shorter than either, fifth a little longer than fourth. Legs moderate, thighs sinuate, and somewhat clavate; tibiae nearly as long as the thighs, straight, strongly unguiculate at the outer side of the apex; tarsi rather long, slender, third joint not wider than the second; fourth joint as long as the others united, with rather large, divergent, simple claws. This is one of the most remarkable insects in our fauna, from the length and stiffness of the bristles, Avhich are almost spiniform. 320 CURCULIONID^. [LeConte. 1. E. echidna, n- sp. Oval, not convex, narrowed before and behind, covered with a crust of dirt-colored scales, and with long stiff bristles, less evident on the under surface. Prothorax very uneven; elytra with narrow striae, interspaces wide. Outer part of beak naked, brown, shining, somewhat punctured. Length 2.5 mm.; .10 inch. Illinois; one specimen given by Dr. S. V. Summers to Dr. Horn. PLOOAMUS n. g. Of the form of an elongate Centrinufi, clothed with a dense crust of gray scales, with short erect bristles intermixed. Beak as long as the head and prothorax, slender, curved, slightly and gradually thickened behind the ant'.mniTe, which are inserted one-third of the length from the base; eyes transvers?, finely granulated. Antenmt similar to those of EacJueteH, but with the funicle shorter and less slender; second joint not longer than third. Head less immersed in the prothorax; the latter is scarcely rounded on the sides, which are obliqus, very strongly constricted in front, without post- ocular lobes, slightlj^ bisinuate at base, scutellar lobe indented, and slightly eraargina'e. Scutellum ratlier larger than usual. Elytra a little wider than the prothorax, sides parallel, regularly rounded at tip. Under surface and legs, exactly as in Euduetes. P. hispidulus, n. sp. ElouLjate, blackish brown, densely clothed with a crust of gray scales, with sliort, erect pale bristles. Beak brown, naked beyond the antenntB, which are idso brown. Prothorax somewhat uneven, deeply and densely punctui'ed. Elytra s:imewhat clouded wi;]i darker gray, especiall}' by a transverse spot about the middle; strife deep, interspaces not wide, slightly convex; humeri oblique, ob'use, scarcely rounded Length 2 mm. ; .08. Southern States. I am indebted to Mr. Ulke for several specimens found at Waslungton, D. C. I have adopted the name under which it appears in Dej an's Catalogue. Tribe XX. iioRMOPlsri. The sub-family of genuine Curctilionidce fitly clos?s with a A^ery anoma- lous insect, which while having relations with several of the earlier tribes, exhibits in addition a character which is otherwise seen in one of the sub- families of the Calandridte. The eyes, namely, are very large, transverse, and coarsely granulated; they are widely sepai'ated above, but are nearly contiguous benca'h. It follows from this that the antennae in repose must be received in front of the eyes, which therefore form as it were a collar be- neath; and the anteunal grooves, which are deep and oblique, attaining the eyes near the upper end, are suddenly and acutely flexed beneath, forming a deep, transverse excavation in fnmt of the eyes. The beak is shorter than the proiiorax, s'.out, somewhat flattened, a little wider at tip than base; the mandibles are rather flattened, acute at tip, toothed on the inner side. The gular peduncle is small and narrow, emar- LeConte. HORMOPINI. 321 ginate at tip; the mentum is neiirly round, and the ligula and palpi are not prominent; maxillis exposed. Antennae inserted near the tip of tlie beali, geniculate, scape long, slender, slightly clavate, funicle somewhat stout, first joint long, clavate, equal to the four following; 2-7 short, outer ones a little wider, club small, oval, pubescent, annula^ed. Prothorax rounded at the sides and base, truncate in front, without postocular lobes; prosternum feebly emarginate beneath, front coxfe contiguous. Elytra ob- long-oval, a little wider than the prothorax, humeri rounded, pj^gidium en- tirely covered ; scutellum small, rounded. Mesosternum moderately wide, middle coxse separated, side pieces diagonally divided, not ascending be- tween the elytra and base of prothorax. Metasternum rather long, side pieces narrow; hind coxse moderately separated. Ventral segments first and second longer, separated by a slightly arcuate distinct suture; third and fourth short, separated by straight sutures; fifth as long as third and fourth united, broadlj'^ rounded behind. Legs rather short, stout; thighs thick, not clavate, sinuate beneath near the tip, not toothed; tibite obliquely trun- cate at tip, wi.h a small hook at the inner apical angle; tarsi two-thirds as long as the tibiae, dilated, spongy beneath, third joint broad, bilobed; fourth joint not elongate, slender, with small, approximate claws, which are slightly connate at base. HORMOPS n. g. The single species representing this genus and tribe in our fauna, is a small, inconspicuous black insect, thinly clothed with rather coarse yellow hair, and reminds one in general appearance of the Erirhine genus Procai (p. 163). The characters as above detailed are quite anomalous, and no further generic description is at present necessar3^ It is possible that it may have relations with some of the anomalous genera placed by Mr. Wol- laslon among the Cossonidm, but as I have had no-opportunity of studying them in nature, I can but timidly suggest the propriety of comparing this genus with those genera of Cossonidce in which the eyes are disposed to be- come confluent beneath. Tlie entire fiicies of this insect is so purely Cur- culionideous that (the sexual characters being unknown), I would be un- willing to place it in any other famil}\ 1. H. abducens, n. sp. Brownish black, not shining, thinly clothed with yellow pubescence, head and beak denselj^ punctured; prothorax wider than long, rounded on the sides, feebly constricted neaf the tip, broadly rounded at the base; strongly but not very coarsely or densely punctured, rather shining, without dis'.inct trace of dorsal smooth line. Elytra wider than pro- thorax, feebly emarginate at base; humeri rounded, sides slightly rounded, tips conjointly broadly rounded; disc somewhat flattened, striae well impressed, slightly punctured, interspaces nearly flat, punc'ulate. Be- neath strongly and densely punctured, last ventral more finely punctured; pubescence similar to that of the upper surface. Length 4 mm. ; .1.5 inch. Capron, Florida; April; Messrs. Hubbard and Schwarz; one specimen. PUOC. AMER. PHILOS. SOC. XV. 96. 30 822 CURCULIONID^. Subfamily V. BALANINID^. [LeConte. The single genus which constitutes this subfamily has been heretofore arranged as a tribe, in the vicinity of Anthonomini. It differs, however, from that tribe, as from all other Coleoptera, known to me by the movement of the mandibles being vertical instead of horizontal ;* the mandibles are short, pyr- amidal and acute, and the condyle is on the upper side; the teeth seen in most Curculionidiie are wanting; the inner edge is mor^- convexly curved than the outer, so that in the ordinary position, the points seem slightly divergent. In general appearance, as well as by the extension of the mesothoracic epimera, so as to give an oblique outline to the elytra near the base, this subfamily seems to me to approach Centrinus more than Antkonomus ; the rt suit of this obliquity is that the tenth elytral stria commences at the margin, oppo- site the anterior end of the metathoracic episterna, as in all Barini. The beak attains in length and attenuation the greatest development; in the (^ it is rarely shorter than the body; in the $ it is frequently twice the lengtb, and is used to make the perforation into which the egg is sub- sequently introduced. The great thickness of the husks of the fruits (chestnuts, walnuts, hickory nuts, &c.), depredated on by these insects, necessitates a very long perforating instrument to reach the kernel, upon which the larva feeds. The mouth organs are small, the gular peduncle very long and narrow. The antenniB are inserted a little before the middle ((j^), or behind the middle ( 9 ) of the beak, and are very long and slender; the funicle is 7-jointed; the first joint is either longer or shorter than the second, and the outer joints are gradually a little less elongated; club elongate oval, pointed, annulated and pubescent. Eyes rather large, flat, nearly rounded, finely granulated. Prothorax rather long in front of the coxie, which are contig- uous; broadly emarginate in front, without postocular lobes; pronotum rapidly narrowed in front, sides rounded, base slightly bisinuate. Scutel- lum distinct. Elytra narrowed behind, tips separately rounded, pygidium more or less exposed. Side pieces of mesothorax attaining widely the base of the prothorax, and truncating the humeral outline of the elytra; meta- thoracic episterna narrow, dilaed in front. First ventral segment longer than the second, and closely united with it; the others are nearly equal in length. Middle coxse moderately distant, hind coxae widely distant, not attaining the elytral margin. Legs long, thighs clavate and strongly toothed in our species; tibi* slender; truncate at tip, not mucronate ; tarsi dilated, claws divergent, toothed. BALANINUS Germ. I have nothing to add to the exc'llent synopsis of oar six species given by Dr. Horn, as above cited. B. porrectus Boh., Sch. Cure, vii, 293 still remains unknown. *Horn, Proc. Am. Pliil. Soc, 1«73, 457. LeConte.] BRENTHID^. 323 Family YII. BRENTHID^E. Mouth organs very different, according to genus and sex; maxillte, ligula and palpi concealed in the species of the first sub-family in our fauna by the mentuni, Avhich in the (^ is transverse and concave, in the 9 narrow and convex. Mandibles in (J^ curved, flattened, pointed, more or less toothed on the inner edge; in the 9 stout, small, pincer-shaped, toothed on the apical edge. Maxilte exposed in Cyladidie in both sexes, mentuni oblong, and supported on a short gular peduncle, which is wanting in true Bren- thidm; mandibles short, pincer-shaped. Antennae inserted in lateral fovese at a greater or less distance in front of the eyes, according to genus and sex; not geniculate, 11-jointed in true Brenthidce, lOjointed in Cyladidce; outer joints finely pubescent and sen- sitive; basal joint stouter and a little longer than the second. Head elongated, constricted behind, except in Cylas ; eyes rounded, small, not granulated; labrum wanting. Prothorax very elongate, truncate before and behind, without trace of postocular lobes; turned into a peduncle behind, with a broad basal bead; prosternum very long in front of the coxae; prosternal sutures entirely oblit- erated; coxae separate in Brenthidce, conical, prominent, and contiguous in Cylas ; in both the median suture behind the coxae is very evident. Mesc'sternum moderately long, side pieces diagonally divided, cpimerfi pointed in front, not attaining the base of the prothorax; coxae rounded, separate {Brenthidce), nearly contiguous {Cylas). Metasternum very long, episterna narrow ; hind coxae transverse oval,, separated. Elytra elongate, covering entirely the pj^gidium, with a fold on the inner surface close to the margin, which commences near the base, and diverges- obliquely near the tip, and extends to the sutural edge in Brenthidce, and nearly there in Cylas. Wings well developed. Abdomen with five ventral segments, of which the first and second are very long, and united by an indistinct suture; third and fourth short, fifth a little longer, flat, rounded behind; sutures straight. Dorsal segments mem- branous, except the last, which is corneous; anal segment of (^ rather large, rounded. The acute edge of the ventral segments and of the meta- thorax is prominent and fits, as usual, into the elytral groove. Legs not slender, moderate in lengtli; thighs clavate, front tibite sinuate,, and obliquely gi'ooved on the inner side in Brenthidce,, and armed with a hook on the outer tip, and a spine on the inner; middle and hind tibia? truncae at tip, with two small fixed spurs. In Cylas the tibi;e are all: slender, straight and not mucronate at tip. Tarsi spongy pubescent be- neath, with the third joint 1)ilobed. Claws large, simple and divergent,. except in Cylas, where they are small and connate at base. This highlj' specialized family is the last of those in which the male is provided with an additional dorsal segment. The mouth organs vary to a greater degree than they do in CurcuUonidce, though usually the mentum. is 324 BRE>fTHID.E. [LeConte. developed to such an extent as to conceal the ligula and labial palpi. Of the genera known to me Cylas is the only one in which the maxillfe are ex- posed bj' the mentum not filling completely the buccal cavity, though other cases are mentioned by Lacordaire. But what is most curious, is that while the mandibles of the 9 preserve the pincer-form seen in many Curculionidce, and the beak is slender, and in some species extremely long, for the purpose of performing its function as an accessory organ of generation,* in the ^J* the mandibles assume a flat, curved, and pointed form, resembling those of ordinary Coleoptera. This sexual character is exhibited even in those genera in which the beak of the (^ is nearly as slender, and the moulh as small as in the 9- The explanation of this difference in the mandibular structure is afforded by the interesting remarks of Mr. A. R. Wallace, concerning the wonder- ful pugnacity of the (J^ (J' when in proximity to the 9 • An excellent ac- count of the assistance given by the (^ to the 9 when she is occupied in boring the hole in which the egg is placed, is also given by C. V. Riley.f from observations made by his correspondent W. R. Howard, of Forsytli, Missouri. These combats, however, result in no injury to either of the parties en- gaged; the dense chitinous covering affords a perfect protection; the weaker male, overcome by exhaustion, eventually flees, and leaves to his more vigorous victor the honorable task of guarding and assisting the fair object of strife in her efforts to preserve the species. The habits, therefore, of these insects, as well as their peculiarities of structure, deserve a closer attention than has yet been given to them. The smooth eyes, the reticulations of which are seen only through the transparent integument, and the form of the front tibiae, indicate a resem- blance, though a remote one, to Bhyssodidce. such as might perhaps exist among objects of quite different nature originating in the same period of time. The geographical distribution of the Bventhidie is also favorable to the idea that they represent a tolerably ancient form of life. The great extension of the longitudinal axis of the body exceeds in some members of this family any proportion that occurs in other Coleoptera; and it is singular to see that a character, wiiich usually indicates feebleness of development, is here associated with densely chitinized integuments, and great complication of domestic life. The family divides itself naturally into two sulifamilies, the characters of which have been sufficiently exposed above. Antennae 11-jointed, last joint oval, pointed, not larger, BRENTHID..ffi. Antennae 10-jointed; last joint very elongate, CYLADID-ffi. * Harris, Ins. Inj. "Veg. .M ed. 6^; Wallace, Malay Arcliipelago (ed. Harper), p. 4S2; Riley, Sixth Annual Report, Ins. of Mi.ssouri, p. 115. These autliors men- tion that the ? makes with her beak deep perforations in tlie tree, and deposits an egg in each one of them; Lee., Am. Journ. .Sc. and Arts, 1867. t Sixth Annual Report on the Noxious, &c., Insects of Missouri, 1874, p. 415. LeConte.J ARRIIENODINI. 325 Subfiimily I. BRENTHID^ (genuini). Of this family two genera belong in the faunal limits treated of in this memoir, though one of them [Brenthus), is in a political sense extralimital, having occurred in Lower California. These two genera represent in the arrangement of Lacordaire separate groups, but in the plan of subordination of characters herein adopted, they seem to indicate what 1 have called tribes, which may be distinguished by the sexual and other ditterences in the head, as well as by the torm of the prothorax. Beak very dissimilar in the two sexes; antennse not very remote from the eyes, rather slender, not compressed, nor clavate; prothorax convex, not grooved akrhe:<«ouini. Beak slender in both sexes; antennae far distant from the eyes, somewhat thickened and stouter externally; prothorax deeply grooved towards the base. . . brenthini. Tribe I. arkhenodini. The genus Eupsalis, represented in our fauna by a single species, differs from Arrhenodes by the brilliant lustre of the surface, and by the hind part of the head being less prominent; in view of the magnitude of the varia- tions in the rf (^, which I have mentioned below, I have great doubt of the generic value of these characters; nevertheless, my opinion can only be tested by a careful study of foreign species, which would interrupt the progress of the present memoir, and is, moreover, not essential for the elu- cidation of our own fauna. The distribution of Eupsalis, even as thus limited, is remarkable; one species in North America, one species in Guinea, and one in Madagascar, and perhaps one in Brazil. It is worthy of remark in this connection, that the genus Amorphocephalus, the only Breuthide found in Europe, is also represented in Australia.* EUPSALIS Lac. 1. E. minuta Riley, 6th Mo. Report, 113; (larva correctly determined, described and figured); Curculio minutus Urury, Ins. i, 95, Tab. 42, f. 3, 7, name given in index, vol. ii, (9 ); Herbst, Kafer, vii, 300; Tab. 108, f. 9, (9); Oliv. Enc. Meth. ii, 192; B. maxillosus Oliv. Ins. iv. No. 84, Tab. 1, f. 1, and Tab. 2, f. 17, (J^?); Gyll., Sch. Cure, i, 326. B- septemtrionis Herbst, Kafer, vii^ 183, Tab. 108, f. 5, {(^); B. bvunneus Panzer, ed. Voet, iv, 44; B. distans Panzer, ibid. B. {Arrhenodes) septemtrionis Harris, Ins. Inj. Veg. 3d ed. 68; (larva er- roneously determined and described) ; Eupsalis maxillosus Horn, Tr. Am. Ent. Soc. iv, 127. Abundant from Lake Superior to Texas, and from New England to Col- orado; bores into the heart wood of various oaks, usually after they have been felled, though sometimes while the tree is still living; the white, the *Lacordaire, Gen. Col. vii, 421 32(5 BRENTHID^. [LeConte. black, the red and the post oaks are mentioned as those which are known to be attacked. By some curious inadvertence, Olivier in the Encyclopedie Methodique cites for this species No. 84, plate ii, f. 9; a totally distinct spe- cies, which in the text (v, 439) is named B. militaris. A description of this very well known insect is here unnecessary, but a notice of the variations which I have observed in the head of the males may be of interest. The females vary in length from 6.5 to 14 mm.; .25 to .56 inch., from the eyes to the tip of the elytra. The head is rather strongly constricted immediately behind the eyes, which are convex and prominent. Imme- diately in front of each eye is a deep fovea; and in advance of them is a deep frontal excavation; the ridges above the insertion of the antennte are prominent, and not angulated; the beak in front of the antenna? is as long as the joints 1-9 of the antennas, which are shorter and stouter than in the (^. The males vary in length from 7.2 to 17 mm.; .28-. 67 inch, from the eyes to the tip of the elytra. The head aft'ects three different forms, which seem to be independent of size : 1. The head is suddenlj^ but not strongly constricted behind the eyes, with the lateral angles obtuse, but distinctly outlined; the ridges above the antennfe are very prominent, angulated behind, and separated from the front bj^ a deep impression; the frontal impression is large and deep, and the median elevation in it is feeble; the beak in front of the antennte is strongly dilated, much wider than long, with scattered elevated granules, and with a well developed ridge each side, which is suddenly more elevated at its posterior end; there are also two shallow impressions. The mandi- bles are as long as the beak in front of the antennae; the cusp on the inner side is distinct and the apex of the right mandible has three cusps, that of the right but two. This form occurs in Michigan and Georgia. 2. The beak in front of the antenna is not transverse, but fully as wide as long; the other characters as in (1). This form occurs in Kansas and Texas. 3. The beak in front of the antennae is nearly twice as long as wide, the lateral ridges less developed, the granulations more numerous, the mandi- bles comparatively shorter and stouter; the frontal impression more elon- gated, with the median elevation more distinct; the ridges above the inser- tion of the antennae are less prominent, not angulated behind, and the head is less suddenly constricted behind the eyes, with the angles so much rounded as to be nearly eflaced. These characters are somewhat similar, as regards the development of the supra-antennal ridges to those observed in Lucanidw, but in the' varia- tion of the length of the beak are rather anomalous. They indicate, how- ever, the propriety of recasting the classification of this family, and defining the genera and species by the invariable characters of the female, rather than by the perhaps individual modifications of the male. The measurements given above show a slight average superiority of size in the male, but not sufficient to warrant any generalization in favor of LeConte.] BRENTHINI. 32t sexual selection, produced by the bloodless combats of these insects; which seem, so far as the records go, to be actuated rather hy cliivalric sentiment, than by animal passion. Tribe II. brebtthiki. Two species of BrentJius collected by Mr. Xautus, at Cape San Lucas, Lower California, which are closely allied to Mexican species, have been fully described by Dr. Horn.* I observe in the males also great variation in the form of the head in different individuals, although the beak, though shorter, is as slender in the ^T as in the 9- and tlie mandibles are equally small, but different in form; the distance from the eyes to the insertion of the antennte is proportionally longer in the larger males. The head is deeply excavated beneath, just in front of the neck, in B. peninsular in, while it is only slightly so in B. lucanus. In B. me.ci- canus there is a short but deep groove in the same position. The front femora alone are toothed in B. mexieanus and lucanus, while they are all toothed in peninsularis. Subfamily II. CYLADID^. This sub-family represents the tribe Gylades, of Lacordaire, placed l)y him between Eurhynchns and Apion, and consists of but two genera, one of which, Cylas, occurs in Asia and Africa, while the other, Myrmecacelu'^, is found in Australia. I have sufficiently exposed the characters of this subfamily in the description of the family, and the singular form of the antenna;, as well as the very peculiar appearance of the insjct, will enable it to be easily recognized. The relations of these insects with Brenthidce were well recognized by Fabricius, Latreille and Olivier, and I know not for what reason they liave been lost sight of by more recent observers. CYLAS Latr. 1. O. formicarius Olivier, Ent. 84, bis, p. 446; Tab. 3, f. 19; Brentm form. Fabr. Syst. El. ii, 549; Ent. Syst. Suppl. 174; Attelabm form. Fabr. Ent. Syst. Suppl. 163; C. turcipennis Boh., Sch. Cure, i, 369. Otidoceph- alus elegantulus Summers, New Orleans Homj Journal, Jan. and Dec. 18T5. Cochin China, India, Madagascar, "Cuba and Louisiana. Depredates on the roots of sweet-potato (^Convolvulus batata). Body very elongate, smooth and shining, ferruginous, with the elytra bluish black. Head and beak dusky, the latter twice as long as the head, stout, cylindrical, nearly straight, finely punctured towards the base; an- tennae inserted near the middle; eyes smooth, rounded, reticulations very distinct beneath the epidermis. Prothorax twice as long as wide, not con- stricted in front, but very deeply strangulated at the posterior third. Elytra * Trans. Am. Ent. See. iv, 128. 328 CALANDKID^. [LeConte. eloiigate-oval, a little wider than the prothorax, very convex, humeri very oblique; surfoce feebly and sparsely punctulate. Under surface of trunk and abdomen dusky. Length 5.8 mm. ; 2.3 inch. (^. Last joint of antennae longer than the others united. 9 . Last joint of antennse shorter tlian the others united. The species of this genus ai-e declared by Lacordaire to be apterous, and so one would naturally suppose from the form of the body. On dissec ion, however, the wrings are found to be very well developed, and the elytra not connate. Family YIII. CALAIN^DRID^. Mouth cavity variable according to subfamily, as follows: 1. Gular peduncle very long, concealing the mentum and ligula, buccal fissures narrow and long; mandibles compressed, wi.h three apical teeth in Calandrida {genuini). 2. Floor <^f the mouth so prolonged that all of the organs are concealed, except the mandibles, which are convex on the inner face, with three apical teeth, and usually diverge externally in Rhinidce. 3. Gular peduncle rather broad, mentum trapezoidal, transverse; maxil- lary palpi rather large; mandibles flattened, curved, with the apex acute, and one prominent tooth on the inner edge, in Gossonidm. Antenna} geniculate, inserted near the base of the beak (Calandridw), or about the middle {Rhinidce, and Cossonidce); scape long, funicle vary- ing from four to seven joints; club variable, with the basal part, and some- times nearly the whole surface shining, not sensitive: oval and annulated as usual in Cossomdce. Head porrected, beak at most capable of being deflexed vertically, never narrowed behind the ej'es; beak sometimes long, sometimes short; eyes sometimes small, sometimes very large and transverse, contiguous beneath {Rhinid(Ji) ; antennal grooves very short, and not receiving the scape in Calandridce, suddenly deflexed under the eyes, and receiving the scape in Cossonida. Prothorax truncate in front, not emarginate beneath, prosternum long in front of the coxae, which are separated; prosternal sutures effiiced; the transverse suture between the coxae is wanting in Calandridte and Cosso- nidm, but distinct in Rhinidce. Mesosternum triangular, truncate behind, side pieces varying according to genus and tribe; middle coxae separated, cavities rounded. Metasternum usually long, episterna varying in breadth, broader in / front, epimera large in some Calandridce, small in other genera and sub- families; hind coxae transverse, oval, not attaining the side of the abdo- men. Elytra without epipleurae, exposing the pygidium in Calandridce, cover- ing it more or less completelj^ in the other subfamilies; on the inner surface the elevated fold commences near the base, continues parallel and close to the margin as far as the posterior curvature, where it diverges and becomes LeConte.] CALAISTDKID^. 329 obsolete. The space between the ridge and the margin has a pearly lustre, and may pvossibly serve as a stridulating organ; in the Consoniaa; this ridge diverges much less and becomes obsolete sooner. Abd(Mnen with five ventral segments, of which the first and second are longer, witli the suture nearly obliterated at the middle in Calandrida;, but deep and entire in Rhinidte; in Cossonidm they are very long, and the suture is effaced at the middle; the third and fourth segments are short, and the sutures straight and deeply impressed; the fifth is about as long as the third and fourth united, and is rounded behind. The dorsal segments are membranous, except the last, or pygidium, which is large, nearly [lerpen- dicular in Calandridm, obliquely deflexed in the other subfamilies; the anal segment of the (^ is quadrate and retractile in Calandridm and BM- nid(P, broader and less retractile in Cossonidw, but not continuous with the pygidium as in GurcuUonidcB and Brenthida;the lateral edge of the meta- thorax and of the ventral segments is sharp and fits into the lateral groove of the i.iner surfiice of the elytra; in the Cossonidw this edge continues on and around the last ventral, thereby showing a tendency towards the modi- fication finally perfected in the Scoli/tidw, and of which we have already seen trac>^s in the Brenthido'. Legs moderate, varying though not greatly, according to genus; thighs usually stoutly clavate, not toothed; tibioe rather short, strongly unguicu- late at the outer angle. Tarsi frequently narrow and not brush like be- neath; third joint sometimes bilobed, (Bhinidce) sometimes broad patellate, and not emarginate, (certain Splienophori); claws divergent, simple. I have embraced in this family several very distinct forms which agree with Curculionidce in general characters, but differ in having the genital segment of the (^ not articulated directly at the end of tlie last dorsal, but either retractile or concealed under it. While the mouth organs of the Cos- sonidm are similar to those of ordinary Curculiomdcv, and submit to modi- fications similar to those of Hylobiini for instance, in the other subfamilies there are specializations which do not otherwise occur among Rhynchophora. With regard to the affinities of the members of this family, it may be said, in general terms, that the Calandridce show an alliance with the Barini; the Rhinidm continue the specialization still farther, and have not a direct resemblance to any other tribe. The Cossonidm seem to be a connecting line from Hylobiini to Scolytidm, to which they approach very closely in Rhyncolus. Three subfamilies occur in our fauna, the characters of which have been sufficiently indicated above: the following table will enable them to be readily distinguished. Buccal cavity elongate, peduncle of mentum elongate, narrow: pygidium exposed CALANDRIDA. Buccal cavity entirely at the apex of the beak; py- gidium covered RHINIDJE. Buccal cavity normal, peduncle of mentum short, oral organs exposed; pygidium covered COSSONIDM. PROC. AMER. PHILOS. SOC. XV. 96. 2p 330 OALAI^DEID^. [LeConte. Subfamily I. CALAISTDRID^. An excellent synopsis of the species of this subfamily, as represented in our fauna is given by Dr. Horn in the Proceedings of this Society for 1873, commencing on page 407. I have but a few new species of Splienoplwrus to add, wluch seem scarcely worth describing at the present time. I shall therefore confine myself to giving at greater length my views on the sub- division of the subfamily into tribes and genera, which do not differ essen- tially from those developed by Lacordaire, and followed by Horn. Side pieces of metathorax very wide, epimera hxrge RIIYAC'HOPIIORINI. Side pieces of metatliorax moderate, or narrow: Mesosthoracic epimera broadly truncate ex- ternally; club of antennae wedge-sliaped. spjhenophorini. Mesothoracic epimera acute externally; club of antennoB oval CAi.AN URINI Tribe I. rhyn^hophorim. The species of this tribe are of large size, and with the exception of Rhyn- chophorus, have the mandibles turned outwards as in the Rhinidw; in the genus just mentioned, the mandibles are of the usual pincer-form with three small apical teeth. The funicle of the antennaj consists of six perfoliate joints, strongly constricted at tlie outer end; the club is transverse, trape- zoidal, corneous, with the terminal face flat, spongy and sensitive. One species, R. cruentatus, represents this species in the Southern States. It is parasitic on Ckamcerops palmetto. In consequence of the extension of the mesothoracic epimera upwards, the humeral portion of the elytra is truncated, as in Barini. The third joint of the tarsi is but little wider than the second, not emarginate, fringed at the apical margin beneath. In the (^ the tibiae, and to a less extent the thighs are densely fringed with long yellow hair on the inner side: In the 9 the hairs are much less dense. The genital segment is sometimes protruded; it is nearly smooth, and finely channeled above in both sexes, but is longer and narrower in the 9. i'^ which sex also the pygidium is more flattened, and more obliquely narrowed at the tip . Tribe II. SPHEXOPHORINI, The species of this tribe are rarely large, but never very small. The mandibles are always pincer-shaped, with three apical teeth. Tiie meso- thoracic epimera are large, and truncate at tlie outer side, so that the out- line of the elytra near the base is straight, and not oblique as in the preced- ing tribe; the metathoracic episterna are rather narrow, and the epimera small, though quite obvious. Three genera have been observed in our fauna. Spongy portion of antennal club flat SOYPHOPHORUS. '• " " " convex 2. LeContc.] SPHENOPHORiiirr. 331 2. Anterior cox« widely distant METAMASIUS. " " narrowly separated 3. 3. Third joint of tarsi patellate, spongy surface not divided CAOTOPHAGUS. Third joint of tarsi patellate, spongy, narrowly divided .'. RHODOB^NUS. Third joint of tarsi pilose at the sides or glabrous. SPHENOPHORUS. SOYPHOPHORUS Sch. The species of this genus are parasitic on Tucca, and seem to me rather opinionative than actual. 1. S. acupunctatus is found in California, Colorado, and Mexico; it is somewhat shining, with the prothorax moderately constricted at tip, and the lateral punctures elevated. S. iiiterstitialis of Cuba, has the same punctu- ation of prothorax, but a little stronger, and the apical constriction is less marked; the lustre is more dull. S. robustior Horn, from Texas, has the form oi^ prothorax o( acupunctatus, but the punctures are coarser, and the lateral ones are less elevated; the lustre is also dull as in S. interstitialis. 2. S. yuccse Horn, from California, is quite distinct by the more de- pressed upper surface, and the single rows of punctures on the interspaces oif the elytra. METAMASIUS Horn. M. sericeus Horn, Pr. Am. Phil. Soc. 1873, 410. Calandra sericea Latr. Humb. and Bonpl. Voyage, v, 41, Tab. 22, f. 4; Oliv. 83, p. 84; Tab. 28, f. 109; Sphenophorus set: Gyll.. Sch. Cure, iv, 896. This species occurs in California and Arizona; also in Cuba, Mexico, and S. America, as far as Peru. SPHENOPHORUS Sch. The species S. IS-punctatus and validus contained in Horn's Group ii, should each constitute a distinct genus; the other species, in which the third joint of the tarsi is not spongy beneath, but merely pilose, sometimes broad, sometimes narrow, might be regarded as constituting but one genus. CACTOPHAGUS n. g. I would separate as a distinct genus- a species of large size, and dull vel- vety black color, which differs from Sphenophorus, by the absencfc of in- equalities or coarse sculpture, and by the third joint of the tarsi being some- what transverse, and uniformly densely spongy beneath; the first and sec- ond joints are narrow, and glabrous beneath. The tibise are slender, not sin- uate, and the outer part of the tip is regularly rounded, not at all truncate, or angulated. The gu'ar peduncle, though deeply channeled, is regularly rounded at the end, not abruptly subtruncate as in Sphenophorus; whereby the beak remains cylindrical, and is not at all compressed at tip. 332 CALANDRID^. [LeConte. 1. C. validus. tSpJienophorus val. Lee, Pr. Ac. Nat. Sc. Phila. 1858, 80; Horn, Pr. Am. Phil. Soc. 1873, 415; S. procerus Lee, Pr. Ac. 1858, 80. California, from San Diego to Cape San Lucas; Arizona, Mexico. The synonym belongs to a form in which the apical constriction of the protho- rax is less obvious; this variation serves to confirm the opinion above ex- pressed regarding the species of Scypliophorus. The specimens were found exclusively under decaying Opuntia leaves. RHODOB^NUS u. g. I would also separate as distinct the usually red species with black spots, whicli agree with Cactophagus in the form of the gular peduncle, but differ in tlie tibiic subtruncate at the tip, with the outer angle obtuse, but distinct, the third joint of tlie tarsi is equally broad and spongy beneath, but the brush is divided by a narrow line; the first joint is liairy at the tips, while the second is densely hairy, with a narrow median line. The elevations above the insertion of the antenna? are much stronger, and the scape of the latter comparatively longer. The mesosternum is also narrower than the other genera. The species are found on flowers, mostly rose-bushes; but two are Ivnown to me in our fauna; the first is red, with black spots; the second brown, irrorate with grayish round spots, which surround the punc- tures. 1. S. tredecimpunctatus. Curadio tred. Illiger, Schneider's Mag. V, 613; for synonymy see Horn, 1. c. 414. Atlantic district, to Colorado, also in Mexico, and South America. 2. S. pustulosus Gyll., Sch. Cure, iv, 923; Horn, 1. c. 415. Arizona; also in Mexico. Tribe IIL CAi:.AX»ni3fI. This tribe consists of small species, in which the mandibles are i>incer- shaped, and not everted; the club of the antennie not compressed, and the mesothoracic epimera transverse, acute at the outer end, and intervening between the humeral part of the elytra and the base of the prothorax. The anterior part of the last dorsal segment of the abdomen is channeled for the reception of the sutural edge of the elj^tra, almost as in Aiithribidie. This is a very peculiar character, and I find no traca of it in the other genera in our fauna. OALANDRA Clauv. This genus differs from tlie others contained in the tribe, but not repre- sented in our fauna, by tlie antennal club being oval, the corneous part sep- arated from the sensitive part by a transverse line; the sensitive part being convex, and somewhat pointed. The body is narrow, and elongate, quite different to that observed in the genera of the two preceding tribes, rather resembling lihina in miniature. Three species occur in our fauna; they have been distributed in the ce- real grains upon which they depredate, so tliat their original habitat cannot LeConte.] CALAJJ^DRINI. 338 be known with certainty. Dr. Horn mentions that from time to time o'her species have been introduced b}^ ships from tropical ports, but fortuiiately they have not yet become naturalized. 1. C oryzae Fabr., Syst. El. ii, 438, &c. ; Horn, 1. c. 430; Curculio ory- zcB Linn. Amo^n. Acad, vi, 395, &c. ; Ehynchophorus oryzce Herbst, Kiifer, vi, 18, Tab. 60, f. 9; Sitophilus oryzie Gyll., Sch. Cure, iv, 981, (cum sy- non. and bibliographia). Found in every part of the globe; universally distributed by commerce, and said to have been originally derived from Asia; it affects rice, wheat, and Indian corn (maize). The surface is dull, and the prothorax densely punctured; the elj^tra are usually ornamented with four red spots, but are some'iimes red, with the suture, side margin and tip darker. 2. O. reraotepunctata Horn, Fr. Am. Phil. Soc 1873, 430; Sitophilus rem. Gyll., Sch. Cure, iv, 979. Atlantic district, extending into Arizona. The surface is somewhat shi- ning, and the prothorax is more coarsely and less densely punctured. 3. C. granaria Fabr., Syst. El. ii, 437; Oliv., 83, p. 95; Tab. 1(5, f. 196, «&c. ; Curculio granarius Linn., Fn. Suec. 587; Syst. Nat. 12th, ii, 608, &c. ; Sitophilus granarius GyW., Sch. Cure, iv, 977, cum synon. plur. Missouri, depredating on wheat; C V. Riley. Very similar to the pre- ceding, but the punctures of the prothorax are smaller, and the striae of the elytra much finer and less coarsely punctured. Subfamily IL RHINID^. This subfamily corresponds nearly if not exactly with Lacordaire's tribe Sipalides, and the essential differences between it and the Calandricke are in the position of the buccal opening which is entirely at the end of the beak, not extending upon the under surface; the pygidium is not large and perpendicularly declivous as in the last subfamily, but covered by the ely- tra, which are conjointly rounded at tip; another character also separates it from Calandridm (though not from Lacordaire's tribes Stromboscerides, and Oxyrhynchides, which are not represented in our fiiuna, and are un- known to me in nature) ; the eyes are strongly granulated, very large, and confluent on the under surface of the head. In nearly all the genera mentioned by Lacordaire, the mandibles are con- vex on the inner face, and the apical teeth are everted, though this is pro- bably a group or generic character as in certain tribes of Calandridce. The club of the antennae varies in form according to genus, and is not annulated. The tarsi also vary, the third joint being narrow in some genera, wide and bilobed in others. But one representative occurs in our fauna, which indicates a new genus; allied to Ehina and Harpiacterus- YUCCABORUS n. g. The body is elongate, glabrous, subcylindrical, resembling in appearance a gigantic Cossonide; the beak is straight, as long as the prothorax, usually 334 CALANDEID^. [LeConte. flexed perpendicularly downwards; sculptured beneath with three longitu- dinal grooves; antennal grooves very short; eyes transverse, coarsely granu- lated, contiguous beneath, but widelj- distant above, and not extending to the upper surface of the cranium. Antennse with scape reaching the eyes; fuuicle 6-jointed, longer than the scape; club elongate-oval, as long as the four preceding joints; spongy part as large as the corneous part, and sepa- rated from it by angulated lines, so as to extend farther upon the sides than upon the faces of the club, which is slightly compressed. Pro'.horax longer than wide, rounded on the sides, a little narrower at tip than at base, and constricted; truncate before and behind. Scutellum small, rounded. Elytra with shallow punctured striae, interspaces wide, sparsely punctured; conjointly rounded at tip, pygidium slightly prominent. Legs slender, thighs not clavate, tibi* subsinuate on the inner side, and feebly serrate; especially the front pair; outer angle obtuse, indistinct, inner angle strongly unguiculate; tarsi slender; third joint a little wider, bilobed, not spongy beneath, but smooth and glabrous like the others. This genus differs from the two above named by the form of the antennal club, by the eyes being widely distant above, and by the third tarsal joint much smaller, not spongy beneath. 1. Y. frontalis. Rhina frontalis Lee, Trans. Am. Ent. Soc 1874, 70. Mojave Desert, Cal.; under bark of Yucca; G. R. Crotch. Length 8- 11 mm.; .32-45 inch. I expressed my opinion when describing this species, that it might indicate a distinct genus; but my knowledge oi EJiyn- chophora at that time was not suflicient to enable me to properly define it. Subfamily IIL COSSONLD^. The abnormal form of mouth seen in the twb preceding subfamilies is here replaced by the ordinary buccal cavity and mouth organs seen in Curculionidm. The gular peduncle is rather broad, not very long, the mentum and ligula with its paljii are distinct, and moderately large, and the maxilUt and palpi are well developed. The beak varies greatly, being sometimes rather long, and moderately slender, sometimes so short and stout as to become indistinct. The antenna are inserted at a variable dis- tance, being sometimes basal, sometimes nearly apical; the scape generally extends beyond the eyes; the funicle has from four to seven joins; the club is small, oval, partly corneous in some genera, and but feebly annulated. The front coxae are sometimes widely separated, sometimes almost contigu- ous. The thighs are unarmed, and the tibiaj are armed in our genera with a long curved spine at the inner apical angle; the tarsi are variable, the third joint is usually not broader; in one genus, Drt/opJithorua, by an ex- ception otherwise unknown in the f\imily, and repeated again only in Platy- pus and some other genera among the Scolytidm, the tarsi are disti;ictly 5-jointed. Neglecting the number of joints in the funicle of the antennae as being rather of generic than tribal value, I would divide the few genera repre- sented in our fauna as follows: LeConte.J DRYOPllTHORINI. 335 Beak long, not dilated at tip; body uneven, cov- ered with a crust DRYOPHTHORINI. Beak long, or moderate, usually dilated at the end, with rapidly descending antennal grooves, front coxae distant, body soniL'tinies depressed.. COSSONINI. Beak usually short, always continuous with the front, and equally stout; front coxa? approxi- mate ; body cylindrical RHYNCOLINI. Tribe I. l>RYOPHTHOKINI. I have associated with DryoplUhorui< two other genera which have but little in common with it or with each other, except the following characters, by which they differ from other Cossonidce, and approach other groups of RhyncJioplwra. The beak is longer than the head, not vory stout, cylin- drical, not di'ated at tip, and the buccal cavity is smaller; the gular i)edun- cle and mentum are smaller and narrower than in the other tribes. The tibiae are slender, not at all dilated, and the terminal hook is long. The body is coarsely sculptured, and covered with a dirt-colored crust. Two groups are indicated by the three genera before me. Metasternum long; funicle 4-jointed Dryophthori. Metasternum long or short; funicle 5-7 jointed Dryotribi. Group I. Wryophthorl. A single small species, represents this group in our fauna. It resembles in form Calandra, rather than any genus of Cossonidie known to me. The antennal club is rounded, oval, corneous, except the tip, which is spongy and not annulated; the joints of the funicle are only four, while those of the tarsi are distinctly five, though in the South European Clufrorlilnui^, ac- cording to description, this anomaly disappears, and the tarsi are 4-jointed. The metasternum is long and the side pieces are narrow; the first, second and fifth ventral segments are very large; third and fourth excessively short, shorter in fact than in any other genus I have examined. The antennae are inserted very near the eyes, which are coarsely granulated and transverse. DRYOPHTHORUS Sch. 1. D. corticalis Say, Cure. 24; ed. Lee. i, 293; Boh., Sch. Cure, iv, 1089; Horn, Pr. Am. Phil. Soc. 1873, 481. Atlantic district generally; found under bark. Boheman mentions the occurrence in California of D. bitu.berc%latm, which is widely distiibuted over the islands of the South Pacific; Sandwich Islands and New Zealand. Its extension to California is doubtful. Group Dryotrlbl. Two species of very remarkable genera are here represented; the first bears some resemblance to Dryophthorus., and in the arrangement of Wol- 336 CALAT^TDEID^. [LeConte. laston* would be placed in the first group of his Pentarthrldes. The second genus would probably go near Lymantes, which is thus far unknown to us, and may perhaps have some relation to the European Styphloderes. BesiuL'S the moie slender beak, and the crusty covering, these iiisects dif- fer from those of the following two tribes by the head being rather peculiarly constricted behind the eyes, which are small, rounded and very coarsely granulated; the result of this form of head is that the eyes are situated on the beak, instead of at the sides of the cranium proper. The scutellum is not visible in either of our genera, and I am inclined to believe that this will be found a character of the group, permitting tlie association of forms now widely separated. Antennae with 5-jointed funicle DRYOTRIBUS. " 7-jointed " GONONOTUS. DRYOTRIBUS Horn. 1. D. mimeticus Horn, Pr. Am. Phil. Soc. 1873, 433. Key West, Florida, February; Mr. Burgess. The eyes are nearly round, and composed, as observed by Dr. Horn, of about twenty lenses; the con- striction is about halfway between the eyes and the apex of the prothorax. The scape of the antennae extends to the hind margin of the eye. GONONOTUS n. g. Beak rather slender, as long as the prothorax, moderately curved, very coarsely sculptured, separated from the head by a transverse constriction immediately behind the eyes, which are small, convex, prominent, and composed of about thirty to thirty-five lenses. Antennse inserted about one third from the end of the beak, scape slender, extending to the eyes, funicle 7-jointed, longer than the scape, rather slender, first joint longer and stouter; club small, oval, rather shining, thinly pubescent, annulated on the outer half; antennal grooves lateral, deep, extending to the lower margin of the eyes. Head small, very short. Prothorax about as long as wide, uneven, coarsely sculptured, sides bisinuate and suddenly constricted far from the tip, thus causing two lateral protuberances, one near the base, and another more prominent in front of the middle. Elytra elongate-oval, a little wider than the prothorax, subcostate, with intervening shallow grooves, costiE with rows of extremely short and indistinct hairs. Proster- num narrow, front coxse narrowly separated, middle coxte moderately sepa- rated, hind coxae very widely separated. Mesosternum short, side pieces narrow. First, second and fifth ventral segments long, third and fourth united about equal to the fifth, first suture obliterated in great part. Legs slender, rather long, thighs slightly clavate, terminal hook of tibiae smaller than usual in this sub-family; tarsi short, rather stout, third joint broader, bilobed and hairy beneath; last joint more thickened at tip than usual, claws small, divergent. * Genera of tlie Cossonidce : Trans. Ent. Soc. London, 1873, p. 434. LoContc] cx)3S()xrxr. 337 1. Gr. lutosus, n. sp. Dull pitclij' black, Avitliout lustre, and clothed with a thin crust of dark color. Head and beak very coarsely rugoselj' punctured. Prothora.'c coarsely granulate, each granule -with a central puncture; disc with two broad shallow grooves, or rather with three fine but not prominent carin;E. Elytra with shallow cribrate grooves, interspaces narrow, carinate, alter- nately a little more elevated. Benea'h very coarsely punctured; antenna testaceous. Length 2.5 mm. ; .10 inch. Haulover, Florida, March 16th; Messrs. Hubbard and Sc'iwarz. A very singular insect, of which I hope more specimens may be obtained than the single one I have examined. Tribe II. COSSOXINI. I would associate as a dis'.inct tribe certain other genera, which have not the bodj^ covered with a crust, but s'lining and bare; some of the foreign genera are more or less setose, but ours are glabrous. The beak is never very short, and is frequently dilated at tip; the anten- nas are inserted near the tip, or at the middle; the antennal gi'ooves fre- quently descend rapidly on the sides of the beak, and sometimes are di- rected towards the eyes, but the antennae are not received in ix'pose in a deep transverse gular groove as in the next tribe. The club varies in form, and in our genera the funicle is 7-jointed; whether any of the genera ot other countries, with less number of joints in the funicle, belong to the tribe as here constituted, must be determined by subsequent investigations. The arrangement here proposed differs radically from that offered hj Mr. WoUaston, and, if found in accordance with natural atlinities, will result in a great reduction of the number of genera. The genera I recognize in our fauna are as follows: Body not depressed, beak not dilated at tip. . 2. Body very depressed, beak not dilated at tip, HOMALOXENUS. Body depressed, beak dilated at tip; antennae inserted near the tip, grooves descending rapidly COSSONUS. 2. Antennae i^iserted near the middle of the beak 3. Antennae inserted near the tip of the beak; funicle stout, club moderately small. . . MACRORHYNCOLUS. Antennae inserted near the base of the beak, body very narrow M AGR ANC YLUS . 3. Antennal grooves descending obliquely, 4- " " directed towards the eyes ALLOMIMUS 4. Body pale, very elongate; funicle slender, club large STENOMIMUS. Body black, less elongate: funicle gradu- ally stouter, club large C AULOPHILUS. Body black, less elongate, funicle very stout, club small MESITES. TROC. AMER. TUILOS. SOC. XV. i)f). 2ci >38 CALAXDPJD.E. HOMALOXENUS Wollaston. [LeConte. H. dentipes Woll., Tr. Ent. Soc. London, 1873, 615. Florida: a single specimen, collected and kindly given to me by Baron R. Osten Sacken, agrees so perfectly with the description of Mr. Wollas- ton of his specimen from S. Domingo, that I am not warranted in consid- ering it as distinct. The only difference seems to be that in my specimen the thighs, though very thick, are. hardly perceptibly toothed; this charac- ter may, however, be sexual. The insect will be easily recognized 1)y the ver}' depressed form, brown color, with dull lustre; very slender beak, as long as the prothorax; slender antennae; scarcely mucronate tibi*, and very widely dilated and bilobed third tarsal joint; characters of rare occur- rence in the present sub-family, but combined with a general appearance which renders the affinities with this tribe unmistakable. COSSONUS Clairv. (emend. Wollaston.) To this genus, as now restricted, belong the eight species comprised in group A, Horn, Pr. Am. Phil. Soc. 437. An excellent table of differences, also the bibliography and full descriptions are there given The funicle of the antennie becomes gradually stouter, and the dilatations of the apex of the beak less evident from the first species (platnlea), to the eighth (m- pressifrons), thus establishing an imperceptible transition to Boropldmus Woll. So far as I may judge without comparison of specimens, I do not see why B. minor Woll. Trans. Ent. Soc. London, 1873, 627, may not be referred to the species determined by Horn as C. corticola Say. MAORORHYNCOLUS Wollaston. To this genus I refer the Californian Bhi/ncolus protractus Horn, Pr. Am. Phil. Soc. 1873, 444, which differs from the true Khyncoli, not onh^ as slated by Horn, in the widely separated front coxse and linear form, but by the Iftnger cylind»cal b«ak,-whrch is qnitetHstinctly separated from the head. The third joint of the tarsi is narrow and fie))ly bilobed. MACRANCYLUS n. g. The number of genera in this tribe has been increased to such an extent as to render them extremely difficult to recognize. I am quite unwilling to add to the names already published, until an attempt has been made to combine them into larger groups. It is for this reason that I regret to pro- pose this genus for an extremely slender but cylindrical (not depressed) species, which has the beak stout, not separated from the front, gradually but slightly tapering externally. The antennal grooves commence about the middle of the beak, and the dhtt'nhae are inserted behind the middle; the scape is long, extending to the back part of the eyes, and is rather sud- denly bent amUlliicl^e^qiJiifHijn the middle to the tip; the funicle is moder- !\,tely stout, the first joint larger 'and thicker; the remaining joints short, closely united, gradually but very slightly broader; club oval, pointed, rather small, distinctly annulated in the outer half. The antennal grooves LeConte. cossoNixi. 339 ure deep and directed against the ej-es, which are round, moderate in size, and finely granulated. The front cox* are widely separated; the tibia; gradually dilated and the front pair are pubescent towards the tip; a dis- tinct spine is seen at the inner apical angle; terminal hook long; tarsi with rather broad joints, third a little widei", feebly bilobed, last joint longer than the others united; claws large, divergent. Scutellum distinct, elytra with punctured strife, which are deeply impressed near the tip. 1. M. linearis, n. sp. Very elongate, cylindrical, piceous or brown, shining, glabrous; head and beak finely punctured. Prothorax more than one-half longer than wide, more strongly but not densely punctured, without impressions; slightly narrowed in front, sides rounded near the base. Elytra not wider than prothorax, strise composed of approximate punctures, deeply exarate on the posterior declivity for a short distance. Beneath distinctly but finely punctured ; flanks of prothorax feebly concave in front. Antennae and legs reddish brown. Length 3 mm.; .12 inch. Haulover; Florida, March: Messrs. Hubbard and Schwarz; abundant on the sea shore; no sexual diflerences observed. The fifth ventral segment is longer than the third and fourth united; the three together are scarcely longer than the first and second; the first ventral suture is obliterated, even at the sides. ALLOMIMUS n. g. I cannot refer C'ossonus duMuH Horn, 1. c. 442, to any of the genera described by Wollaston. It is nearly allied to Macrancyclus, but is of less elongate form, and very much more coarsely sculptured; the elytra are in fact rather sulcate than striate, though the deep strije are coarsely punc-. tured, and the interspaces narrow with single rows of small punctures. The beak is stout, cylindrical, a little narrower than the head, and nearly as long as the prothorax; the antennal grooves commence in front of the middle, and run directly towards the eyes, which are small, rounded, moderately convex and not very finely granulated; the antennte are not very stout, the scape straight, strongly clavate, extending to the front mar- gin of the eyes; funicle 7-jointed, first joint a Httle larger and stouter, remaining joints short, closely united, gradually but slightly broader, club large, oval-pointed, pubescent, annulated. Scutellum distinct. Front coxae widely separated; thighs rather stout, tibiae dilated, with a small spine at the inner angle; terminal hook long; tarsi with the third joint a little wider, and feebly bilobed; last joint long, with divergent claws. 1. A. dubius Horn. 1. c. 442 (Cossonus). I have seen but one specimen from Illinois; it is easily known by the characters given above, and by the very coarse sculpture. Length 1.75 mm. ; .07 inch. STENOMIMUS Woll. I think that Phlaophaguit pulUduK Boh., Sch. Cure, viii, 2d, 279; Cossonus pall. Horn. Proc. Am. Phil. Soc. 1873, 441, may properly be referred to this 340 CALAXDKTDiE. [LeConte. genus, the characters of which are set forth by Wolhvston, Trans. Ent. Soc. London, 1878, 480. It is easily recognized by the pale color, very small size and narrow form. Souihern States. OAULOPHILUS Woll. 1. C. latinasus. Bhyncolus lat- Say, Cure. 30, ed. Lee. i, 299; Boh., Sch. Cure, iv, 1068 ; Cossonus pinguis Horn, Pr. Am. Phil. Soc. 1873, 442. Southern States : the synonymy is on the authority of Dr. Horn, from specimens in the collection of Mr. Chevrolat. The reference to the genus is made after a careful study of the characters given by Wollaston, Ins. Maderensia, 315, pi. vi, f. 4; Trans. Ent. Soc. London, series 2d, v, 368, supplemented by the descriptions in the same work, 1873, 499 and 586. Except that the punctuation of the prothorax is coarser in the figure than in the three specimens in my collection, I should not venture to declare them as a different species from C. sculphoratus. MESITES Sch. 1. M. subcylindricus (Horn), Pr. Am. Phil. Soc. 1873,441, (Cossonw.s), One rj^ found by me on the sea shore near Cape Henlopen, Delaware. This is the largest Cossonide known in our fauna, being 6.5 mm.; .26 .inch long. Tribe III. rhyncol,ISI. The genera of this tribe while differing from those of the Cossonini only by having the prosternum very narrow between the coxae, and by having a deep transverse gular groove beneath in front of the eyes, exhibit other characters which show a strong approximation to the Bcolytidm; thus the number of joints in the funicle of the antennae varies so as to be barely of generic value ; the beak becomes very much shortened, and the head comparatively larger, as in Sienoscelis ; the form of the club varies, becoming wedge shaped, truncate and spongy at tip in Wollaatonta, thus recalling the form seen in BhyncJiophoms, &c. ; quite rounded or perhaps a little transverse in Sienoscelis. The form is also that of certain Scolytidrp. Bhyncolus resembles closely one section of Tlylastes, while Sienoscelis has altogether the appearance of Hylurgops (H. rugipennis, &c.). As in the Rhynchophora, from the nearlj^ perfect representation of past and present forms, there are almost always intermediate genera to be found, I would say that PhlceopMgus seems to be one of such interme- diates, and would be in place in the preceding tribe, if I did not regard the approximate front coxsb as having greater systematic valrie than the longer beak and the weaker gular groove. The antennal grooves always commence near the tip of the beak and descend obliquely below the eyes. Our genera may be separated as follows : LeConte.] SCOLYTID.E. 341 Beak thick, neither dilated at tip, nor cylin- drical, slightly narrowed from the base to the tip, convex 2. Beak very short, parallel on the sides 4. " longer, gula only feebly concave trans- versely PHLCEOPHAGUS. 2. Club rounded, pubescent, feebly annulated 3. Club corneous, truncate at tip, which is spongy ; funicle 5-jointed "WOLL ASTONI A. 3. Funicle 5 jointed AM AURORHINUS. " 6-jointed HEXARTHRUM. " 7-jointed ELASSOPTES. 4. Tarsi dilated, antennal grooves long RHYNCOLUS. " narrow, antennal grooves very short. . STENOSCELIS. The genera and species are fully described by Dr. Horn in the memoir above cited, and need no farther mention at present. Family IX. SCOLYTIDaE. Mentum moderate in size, varjMng in form in some genera according to sex; without gular peduncle (except in Hylastes, where it is very small) ; ligula and palpi small, the former sometimes retracted, sometimes promi- nent. MaxilUie exposed, palpi stout and short. Mandibles stout, curved, more or less toothed on the inner side. Antennai inserted on the sides of the head, batween the eyes and mandi- bles ; composed mostly of scape and club, funicle usually very short, from 1- to 7-jointed; club large, solid, annulated, or i-arely (Phlmotribus) lamel- lated; surface of the club more or less sensitive according to genus. Head prominent in some tribes, detiexed and protected by the prothorax in others; eyes usually large and transverse; beak never long, frequently so short as to be not apparent. Labruni feebly developed, sometimes visible. Prothorax truncate in front, exposing the head, {Platypodidce, Scolytini and Hylurgini), or prominent, convex and rounded (most Tomicini); lat- eral edge not dis'.inct,* and prosternal sutures obliterated; flanks excavated for the partial reception of the front legs in Platypodidw; coxal caviaes usually confluent; separated in a few genera. Mesosternum triangular, pointed behind, or slightly truncate, episterna {Platypodidce) excessively large, ascending between the base of the pro- tliorax and elytra with the epimera small, posterior a;ul transverse, or with thii suture very indistinct; coxae rounded, not widely separated. Metasteruum long, sometimes, (Platypodidce) very long; side pieces parallel, or nearly so, not dilated in front. Legs moderate in length, rather stout, front coxae almost always con- *Excopt in S-olytus. Eutomus, as has been elsewhere observed is not a Itliyn- cliopliorous insect but allied to Shipidandriis. 342 SCOLYTID^. [LeConte. tignous; middle and hind coxae more or less separated; tibiae compressed, toothed or with transverse ridges on the outer side; armed with a terminal hook at the inner apical angle. Tarsi in some genera filiform and 5-jointed; in others 4-jointed, with the third joint either narrow, or dilated and bi- lobed; last joint long, with large, simple, divergent claws. The insects of tliis family are mostly of cylindrical form, and small size- They are the most formidable enemies of trees, sometimes devastating the forests, especially of conifere, by appearing in incredible numbers: the bur- rows are chiefly betvveen the wood and the bark, though some genera pene- trate more deeply (Xyloteres, &fc). The patterns made by them are complex and vary according to genus and species; those of several European species arc figured in the excellent work of Ratzeburg,* and since descriptions of our species are now accessible, so that their identification is easy, I trust that those interested in the preservation of our forest trees may direct their attenti(m to this important subject. Specim-ns of the ravages of these in- sects should be carefully collected, with individuals taken from the bur- rows, and these should be deposited in some museum where they will be carefully preserved for future study. Since the publication of my revision of this fauiily.f a few additional species have been found, and a renewed study of the genera has rendered necessarj' some modification of the chissification there proposed. The great difi'jrences exhibited by Platypus, and its allies, indicate the propriety of separating them as a distinct sub-family, a course already adopted by Lacordaire. First joint of tarsi as long as the otliers united PLATYPODID^E. " " " much shorter tlian the others united SCOLYTID^. Sub-family I. PLATYPODID^. Head large, not covered by the prothorax, front wide, oblique or vertical ; labrum small, but distinct. Beak wanting; eyes rounded, not convex, finely granulated in our species. Antennae witii large scape (elongated and curved in some foreign genera), and large compressed solid club, which is pubescent except for a small space at the bass; funicle composed of four small joints. Prothorax elongate, truncate before and bisinuate behind; subsinuate on the sides; flanks broadly excavated for reception of front legs. Prosternum moderately long in front in the coxae, which are very large, conical, exserted and contiguous in our species; space behind tlie coxae very short. Pronotum considerably longer than the under surface; middle of base notched for reception of the carina of tlie mcsonotum. Mesosternum triangular, middle coxae narrowly separated; episterna very large, quad- rate, occupying the space formed by the prolongation of the pronotum; epi- *Die Forst-Insecten, Vol. i. fSynopsis of the ScolyUdce of America, north of Mexico, bj' C. Zimmermann, M.D., with notes and additions by J. L. LeConte, M.D. Trans. Am. Ent, Soc. IKKS, m. LeConte.] SCOLYTID.E. 343 mera small, transverse, posterior and intllstinct. Metastenium very long, episterna parallel, ratlier wide; liiad coxie slightly separated. Ventral seg- ments 5; first and second very sh<»rt, together scarcely equal to the thii'd. which is equal to the fourth; fifth a little longer, rounded behind; last dor- sal segment horiz )ntal, partially or completely covered by the elytra, ac- c^rding as the segments are deflexcd or retrac ed. Elytra margined and perpendicularly declivous at base, striate, variously prolonged into processes at tip, according to species and sex. Mesonotum strongly carinate. Legs short, thighs stout, compressed; tibiaj shorter than the thighs, stoul, unguiculate, marked on the outer side with transverse ridges. Tarsi long, slender, first joint as long or longer than the three following united; fourth joint one-half as long as the third; fifth as long as the joints 2-4 united; claws long, simple, divergent. This sub- family is represented in our fauna by a fow species of Platypus found chiefly in the Southern States. The species are cylindrical, and sug- gest a resemblaace to certain Colydlkim, from which, however, they widely depart in structural characters. PLATYPUS Herbst. In this genus tlie maxillary palpi are large, flat, membranous, 4-jointed, with the joints received one into the other, and the pygidium is almost or entirely covered by the elytra. The sexual differences in the processes of the elytra are such as to make it difficult to construct a table of the species: 1. Ventral segments with elevations 2. " " without elevations 3. 2. Elevations at the posterior margin of the third segment 1. flavicornis 9 . Elevations very acute, at the posterior mar- gin of the fourth segment 2. quadridentatus 9- 3. Prothorax nearly twice as long as wide 3. compositus (5^ 9- " one-half longer than wide 4. rugulosus ^f 9- " with two large discoidal punctures 1. flavicornis ^J*. 1. P. flavicornis Chap., Mon. Plat. 154, f 70, rj* 9 : BostrirJu/.s flav. Fabr., Mant. 212; Sp. Ins. i, 67; Ent. Syst. ii, 364; Syst. Kl. ii, 384; Herbst, Kafer, v, 118; Scolytm fiac. Oliv., Ent. 78, 4, pi. 1, f. 1. (^. Elytra with the third interspace somewhat elevated and roughened at base; the posterior process of the elytra shorter and less acute; the declivity of the elytra concave near the tip, and the tip itself truncate and feebly emarginate. Ventral segments finely rugose, regularly convex; prothorax with a large puncture each side of the anterior extremity of the short dorsa! impressed line; P. dinciporus Chap., 1. c. 219, f 123, is a variety in which the elytral process is shorter and less prominent. 9. Elytra with the base of the third interspace lcs> elevated; the poste- rior process longer, more acute, serrate on the outer side. Ventral surface 'M4: SCOLYTID.E. [Leconte. punctured and finely rugose, opaque; posterior margin of third and fourth segments thickened, the former with two distant con-ical elevations. South Carolina, Florida and Texas, extending into Mexico. Length 5.3 -J. 7 mm.; .21-. 23 inch. 2. P. quadridentatus. Scolytm quadr. Oliv., 78.5; pi. l,f. 3: Lee. apud Chapuis, Mon. Plat. 338, (err. cler.): P. BlancharcU Q\va\^., Mon. 185, f. 96. 9 . Elytra deeply striate, with a posterior process at the end of the third interspace, and a large compressed ob'us.dy truncate one at the junction of tlie fifth and eighth interspaces: ventral surface opaque, densel}' punctured; faurlh segment with two acute spines near the hind margin. cj'. Unknown. Florida: length 4 m:n.; .10 inch; occurs also in Texas, according to Mr. Chaituis, if I am correct in considering liis species as the same. 3. P. compositus Say, Journ. Ac. Xat. Sc. Phila., iii, 324 (?); ed. Lee. ii, 182; Er.,Wiegm. Arch. 1836, ii, 65; Chapuis, Mon. Plat. 163, f. 75, (^. 9 ; -P- parnllelus Chap., ibid. 104, f. 70, J^, $ ;? Bostrlchus par. Fabr., Syst. El. ii, 384, (description of no value); ?. P. tremiferus Chap., Mon. Plat. 174, f. 85, r^, $ ; V P. perfossus Chap., ibid. 170, f. 80, J, 9 ; '? P. rufjosuii Chap., ibid. 170, f. 87, c?, 9. J^. Apical part of front smooth; prothorax scarcely punctulate; elytra transversely impressed near the tip, without posterior process. Ventral segmen'.s shining, sparsely punctulate. 9 . Front uniformly rugose; protliovax distinctly punctulate; elytra with the second interspace compressed and forming an acute cusp near the tip; fifth and ninth interspace prolonged into a large process, which is concave above, and tridentate at tip; the outer tooth much longer, narrow and trun- cate r r emarginate at tip according to age of specimen, or directio:i of view. Ventral segments opaque, densely punctured; fifth flat, not carinate, nor tuberculate. Illinois to Texas, Louisiana, Florida, South Carolina. Neither the figures nor descriptions of Dr. Chapuis indicate anything more, in my opinion, than slight individual varia ions of form and sculpture, such as I would be unwilling to admit as having specific value. Nevertheless, as I have not seen the typical specimens, I cannot be certain of the correctness of this view. The original description of Fabricius refers to a male of this or some allied species, but is quite irrecognizable, and should not take prece- dence over the well-defined characters published by Sa}'. Length 4 mm. ; .16 inch. 4. P. rugulDSus Chap., Mon. Plat. 192, f. 103, ^j^, 9. c^. Front entirely opaque, finely rugose; pr-othorax feebly punctulate; elytra finely not deeply striate, transversely impre^^sed at tip, without sub- apical process. Ventral segments shining, sparsely and finelj^ punctured. 9. Front entirely opaque, densely rugosely punctured (arenlate in fact); prothorax unequally punctulate and punctured, less finely at the sides; ely- LeConte.] TOMICINI. 845 tra deeply striatopunctate, interspaces more convex behind; second elevated, forming a small cusp at the posterior declivity; posterior process as in the preceding, but shorter and stouter, with the three teeth of nearly equal length, the outer one broad, and not very distinctly separated from the upper one ;> the inferior one a little shorter and acute. Ventral segments opaque, densely punctured; fifth sometimes finely caiinate, sometimes feebly tuberculate . Cape San Lucas, Lower California; Mr. Xantus; also found in Mexico. This species is allied to the preceding, but is less elongate, the prothorax being but little longer than wide, and the deep impressed dorsal line is longer, and not terminated in front by a short, transverse impression. The sexual characters, as will be seen, are quite diffei'ent. 5. P. punctulatus Chap., Mou. Plat. 199, f. 110, ?. Texas, allied to the preceding, and apparently differs only by the last ventral segment having a strongly marked tubercle. Unknown to me. Sub-family II. SOOLYTID,^ (geauini). The characters by which this sub-family differs from the Platypodidce have been already sufficiently pointed out; in other respects the species differ greatly according to genus and tribe, and the chief peculiarities will be pointed out under the appropriate heads. The genera which occurs in our fauna indicate the following tribes: 1. Pi'othorax not prolonged over the head, which is oblong and prominent; tarsi with fourth joint smaller or in- distinct; third joint usually bilobed 2. Pi'othorax prolonged over the head, which is deeply im- mersed and globose; tarsi filiform, 5 jointed T»>Mlol.\r, 3. Ventral sui'face ascending obliquely, s<_'<»L yti.\' i. " " regularly cylindrical H ytesixi. Tribe I. TOJiiciJll. Although the genera of this tribe are the farthest removed from Coft- sonidce bj^ their characters; they are in some respects the most nearly allied to Platypus, with which the family must naturallj^ commence, on account of the relations between the latter and Brenthidw. The head is globose, or nearly so, and deeply immersed in the iirotiiorax ; the eyes are transverse, sometimes divided, {Xyloterus); the front is not prolonged into a beak; the antenna3 are inserted near the base of the man dibles; the scape is long and stout, the funicle short, composed of from one to five joints, the m.iss large, compressed, varying in form and structure ac- cording to genus. Prothorax more or less cylindrical behind, prolonged in fi-ont over the head a id much rounded, so that the anterior opening be- cimes very oblique, or even sometimes, almost horizontal; t'le sculpture is peculiar, and consists for a greater or less distance from the apex of sliarp granules, or little spines; behind, the su. 'face is smooth oriunctured; the PROC. a.mp:i{. piiiLO^". st)C. XV. 9G. 2k 346 SCOLYTID^. [LeConte. side margin is not distinct.* Tlie mesonotum is never carinate as in Platy- pus. Elytra suddenly declivous in front, so that the edge fits against the base of the pronotum; usually obliquely excavated and toothed on the pos- terior declivit}^; ridge on inner surface near the outer margin, effaced near the tip; groove very deep and narrow. Pj-gidium entirel}' covered. Me- sosternum acute behind, side pieces obliquely divided, epimera small, not attaining the coxse, Metasternum rather long, side pieces narrow. Ventral segments five; first and second longer, closely united; fifth longer than tlie fourth, rounded behind, edge acute, fitting under the elytral edge. Front coxae large, globose, pi'ominent and contiguous; middle coxre nearly contiguous; hind coxa^ also. Legs stout, thighs thick, not toothed; tibiae compressed, armed with a large hook at the inner angle of the apex; outer edge serrate and acute; rarely flattened, with two edges, between which are transverse ridges, som nvhat as i:i Platypus. Tarsi slender; four.h joint very small, but dis- tinct; fifth joint long, with large, divergent simple claws. Crypturgus and Dolurgus seems to me more properly placed in the tribe Ilylurgini. The other genera represented in our fauna arrange themselves na'urally into groups, according to the structure of the club of the antennae. Club large, oval, compressed, pubescent and transversely an- nulated on both sides, sutures straight or slightly curved; inner face usually broadly concave; tibi* serrate Corthyli. Club large, oval, solid, pubescent on both sides; eyes com- pletely divided; tibis^ serrate Xyioterf . Club small, entirely corneous on the inner face, obliquely truncate on the outer face; truncature spongy and sensi- tive, marked with two concentric lines, or transverse su- tures, or entirely terminal and narrow; tibiae serrate Xylebori. Club large, oval or rounded, compressed, entirely corneous on the inner fiice, more or less pubescent on the outer face, and divided by two or thre3 sutures, which are usually sinuated or angulated; declivity of elytra deeply concave with acute margin, usually strongly toothed; funicle of antennsB with five distinct joints; tibiae coarsely serrate Toniici. Club elongate-oval, marked on each side by sutures which are sometimes long and curved, but sometimes nearly straight; the basal joint corneous, others pubescent; fu- nicle 5-jointed; elytra convex behind, with the suture slightly prolonged; tibiae fringed with hair, but not ser- rate; tarsi usually with joints 1-3 rather stout, fourth very small, fifth long and slender Mlcracldes. *One at least of the groups (E'ltoni'des), mentioned by Lacordaire, having the flanks separate from the pronotum, must be excluded from this family; it is al- lied to Rhipidandrus Lee, which I placed in Tenebrionid(e. Its position and af- finities are still doubtful. Vide Chapuis, Mem. Soc. Ro}% I.i6^e, 18C9, 0 ; Horn, Trans. Ent, Soc. 1875, 151. LeConte.] TOMICIXI. 317 Group I. Corthyli. In this group the species are mostly of very small size, and are easily rec- ognized by the c'ub of the antennte. which is pubescent and annulated with nearly straight sutures on both sides. One species of Mkracls (hirteUu^\ as will be s^en below, has a nearly similar club, and shows thereby a re- semblance to the present group, but is otherwise so closely allied to the other Micracis that I have not been disposed to separate it from them. The funicle varies from one to five joints; the tibiae are serrate or ridged trans- versely on the outer side; the tarsi are slender, the fourth joint distinct; fifth long, with simple, divergent claws. The anal segment of the (^ is oc- casionally visible from beneath. The genera may be thus separated : 1. Funicle 1 -jointed 2. " 2-5-jointed , 3. 3. Body robust CORTHYLUS. Body slender MONARTHRUM. 3. Outer part of funicle rather slender PITYOPHTHORUS. very short HYPOTHENEMUS. CORTHYLUS Er. The body is much more robust than in Monarthmm, and the upper sur- face is strongly punctured. The club of the antenna?, connected with the 1-jointed funicle by a short slender peduncle, is much larger, opaque, finely pubescent, not fringed. The front tibiiie are flattened and margined on the outer face, but there are no transverse ridges as in Monarthrum, and only three acute teeth on the anterior edge near the tip; the tarsi are less slender, the 1st joint is a little shorter than the 2d; the 2d and 3d are equal, the 4th small, 5th as long as the 2d and 3d united, slender, claws divergent, simple, ventral segments subequal, 5th not longer than 4th, truncate; pygidium convex, partly inflexed, distinctly visible from beneath; 1st ven- tral suiure deeply impressed. The pronotum is marked wi.h a fine lateral line near the hind angles, and along the base; the prosternum is extremely short in front of the coxa?. Neither of these characters occurs in Monarthriim fasciatum, but the first of them exists in the other species which I have referred to that genus. 1. C. punctatissimus. Cryphirgus pimct. Zimm., Trans. Am. Ent. Soc. 1868, 144. (^. Head flattened, opaque, slightly and broadly concave at the middle. 9 . Head slightly convex, shining, punctured. Middle, Southern and Western States; rare. Length 4 mm.; .15 inch. MONARTHRUM Kirsch. In this genus the bodj' is elongate and cylindrical; the scape of the an- tenna? is long and slender, the funicle of but one short joint, the others being absorbed in the club, which is rounded, very much conij ressed, with two 'S4^S scolytid.tE. [LsUonte. deep straight transverse sutures, fringed at the end witli very long cilise or bristles in tlie J^, or even {mali) furuislied with a long spine; eyes slight!}' eiuarginate. Prothorax much longer than wide, disc finely asperate in front, alutaceous behind; anterior opening oblique. Elytra elongate, nearly l^erpendicularly declivous behind, and pubescent on the declivity; feebly punctured in rows. Front tibiie flattened on the outer side, with two dis- tinct edges, between which are transverse ridges; tarsi long and slender; first joints longer; 2-3 equal, fourth small, fifth as long as second and third united. Ventral segments first and second longer; third, fourth, and fifth short, equal, the last broadly rounded at tip, nearly truncate. Anal seg- ment present in both sexes perpendicularly declivous, small, triangular, with rounded angles. A. Club of antennae of r^ fringed at the tip with long hairs; Corthylominus Ferrari Posterior declivity of elytra hairy; elytra yellow, with the posterior third black 1. fasciatum. B. Club of anteume of rf with a long acute spine, and a few hairs; Cosmocokyni's Ferrari. Larger, piceous, elytra l)rownish at base, pubescent at tip 2, scutellare. Smaller, brown, prothorax testaceous behind, elytra not hairy at tip 3. dentigerum. Smaller, brown; elytra not hairy at tip, suture deeply impressed on posterior declivit}' 4. mali. 1. M. fasciatum. Bostr'chus fiisc. Say, Journ. Ac. Nat. Sc. Phila. v, 255; ed. Lee. ii, 318; Crypturgm fme. Zinim., Trans. Am. Ent. Soc. 1808, 143; CorthylominuH fasc. Ferrari, Tomicides, 48; Pterocyclon simile Eich- hoff, Berl. Ent. Zeitschr. 1868, 277. 1^. Club of antennae fringed with very long hairs; posterior declivity of the elytra slightly concave near the suture, with one small tubercle towards the u;)per part; feebly margined near the tip, 9- Club of antennae wi.h only a few shorter marginal hairs; declivity of elytra more strongly margined near the tip; the tubercle is replaced by a loig elevatioi, parallel with the suture, slightly cuspidate in front. Lake Superior to Florida. Length 2.4 mm. ; .10 inch. The head is large, fiat and opaque in both sexes, but is sligiitly impressed in the 9 • 2. M. scutellare. Corihylus scut. Lee., Pac. R. R. Expl. and Surveys, Insects, 49 (^ ; Gorthylomimus sciU. Yarvivvx, Tom. 49; Cryphalus cavus Lee., Trans. Am. Ent. Snc. 1868, 153, (9^ ^. Cub of antennae with a few long hairs at the tip; armed with a long porrect spine on the outer margin; declivity of the elytra flat, margined near the tip, with tlnve small denticles each side near the suture, and along the upper part; also two others on the face of the declivity, wliich is slightly hairy. Head flat, fringed with hairs. 9. Clab of ant^na.e ov.ilroun.lsd withj.it a_)icil sphij; daalivity of ely- LeOonte.] TOMICINI. 349 tra deeply concave, slightly hairy, boundad by a sharp edge, from the tii) for nearly two-tliirds its length; this edge terminates in a cusp at the ante- rior end; the three small d_'nticles at the upper margin of the declivity are much stronger than in the rj*. Head slightly convex, not friiiged with hairs, coarsely punctured, li.iely rugos:^ and opaque near the tip. California; San Jose and Fort Tejon. Length 3.5 mm.; .14 inch. 3. M. dentigerum. CryplialuH dentiger Lee, Trans. Am. Ent. Soc. 1868, 154. 9- Club of antenniB not fringed; declivity of elytra refuse at the side, deeply concave towards the suture, with an acute cusp in the concavity each side, about equidistant from the sutura and the apex, which is acutely and strongly margined. Head flat, opaque. (^ unknown. One 9, Middle California, given me by Dr. florn. The posterior half of the prothorax, the antennfe and legs are yelUiw-testaceous; the rest of ilu body is blackish brown. Length 3 mm.; .08 inch. 4. M. mali. Tomicut mali Y'lich, N. York Reports on noxious Insects, iii, p. 8, No. 5; Zimm., Trans. Am Ent. Soc. 1868, 143; Pterocyclon loiifj- uliim Eichoff, Berl. Ent. Zeitschr. 1868. 278. (J'. Club of antennae with a long apical spine, and a few hairs; declivity of elytra oblique, not retuse at the sides, acutely margined only at the apex, and for a short distance behind; face of declivity with a slight reniform ele- vation rising into two cusps near the suture, which is deeply impressed and excavated at that place; head^flat, opaque, not fringed with hairs. 9. Club of antennae without apical spine; declivity of el3'tra as in rT.but with the reniform elevation and its two cusps much stronger; head slightly convex, sub opaque, feebly punctured. Lake Superior to Florida; depredates on apple trees. Length 2 mm. ; .08 inch. By a typographical error I cited Dr. Fitch's Second Report for this species. PITYOPHTHORUS Eichhoff. Under this name I would associate most of the species which I formerly called Cryphalus, but which differ from Cryphalus tilm by having the sutures of the antennal club transverse, nearly straight and visible on both sides, instead of strongly curved, as in that species. The funicle of the an- tennae consists of two parts; the first joint rather large, as usual, and about as wide as long; the remainder is narrow at base, gradually becoming broader, and forming a slem to the club; this stem is divided by three transverse sutures which are frequently very indistinct, and I consider their number as having little value. The front tibiie are c )mpressed. with one acute outer edge, but no flat- tened space as in Monarthrum; this edge is very feebly serrate; the joints 1-3 of the tarsi are subequal and rather stout, the fourth is small; fifth about as long as the others united; claws large, divergent. A. Club of antennse nearly smooth on the outer surface, and indistinctly annulated, sparsely fringed with long hairs; upper surface pubescent, su- 350 SCOLYTID.^. [l.eCoiit€. tures deep, sUglitly cuvved. Hairs of the body slender, n )t verlicellate nor serrate; elytra feebly punc^u.-ed; pr.)tliorax asperate in front, nearly smoot!i behind. Fifth ventral segment broadly rounded behind, pygidium but slightly visible from beneath; Gnathotrichus Eichhoft'. 1. Posterior declivity of elytra not retiise 2. " " " retuse, concave near the suture 1. retusus. 2. Prothorax moderately rough in front 2. materiarius. " very rough in front, size much smaller. . 3. asperulus. 1. P. retusus. Cryphnlusret. Lee, Trans. Am. Ent. Soc. 18G8, 155, ( 9 ]'< C. sxdcatus Lee, ibid. 155, (^. (^. Front finely and convergently striate; posterior callosity of the elj-'.ra less prominent. 9. Head s'.iining, sparsely and strongly punctured; posterior callosity of elytra more prominent. California, Oregon and Vancouver Island. Length 3.5 mm.; .14 inch. 2. P. materiarius. Tom'cus mat. Fi ch, "N". York Reports on noxious In.sects, iv, p. 41, No. 246; Crypturgux mat. Zimm., Trans. Am. Ent. Soc. 1838, 143; Onathotrichustcorthyloldes'EAchXwQ, Berl. Ent. Zeitschr. 1868,275. 9 . Head shining, sparsely but strongly punctured. (^. Unknown to me. Canada to Texas. Length 2.5 mm.; .10 inch. Infests pine timber. The galleries as figured by Dr. Fitch, are remarkable for the branches being sliort, parallel, and at right angles to the main gallerj'. He also observes, what is probably true of all the species which mine into the wo ,d, instead of siniply under the bark, that the females are vastly more numerous than the males. 3. P. asperulus, Cryplialus asp. Lee, Trans. Am. Ent. Soc, 1868, 155. Virginia, Mr. E. T. Cresson; one female; the head is retracied, but so far as I can see seems to be flat, and punctured as in the preceding. Length 1.0 mm.; .06 inch. B. Club of antennae distinctly annulated and pubescent on both sides, not fringed with long hair. Hairs of the body stout or slender, not verticellate nor serrate. Prothorax asperate in front, finely punctulate behind. Elytra punctulate and pubescent. Front tibits moderately serrate, front tarsi witli joints 1-3 stout; fifth longer than the others united. Pygidium scarcely visible from beneath. Elytra scarcely punctulate; hairs stout, short 4. minutissiraus. Elytra finely punctula'e; hairs longer, and short, in- termixed 5. pubipennis. Brown, shining, moi-e slender, more strongly punc- tulate, hnirs s; arse, fin*; 6. pilosulus. LeConte.] TOMICIXI. 351 4. P. minutissimus. Toinicvs jnisillus\\Uarr\s, Trans. Xat. Hist. Soc. Hartford, 83; Crypturgu> of which the upper one is hooked; obtuse and feebly toothed in jf ; elytra with distant punctures not arranged in rows 13. plagiatus. 9. Declivity nearly perpendicular, acutely margined, armed with a small tooth near the apex, and a long hooked process near the anterior end. Elytra with rows of feebly impressed small punctures 14. hamatus. C. Prothorax densely punctured, not roughened in front, but broadly flattened, disc feebly and broadly sulcate; tibise finely serrate below, coarsely 360 SCOLYTID^. [LeConte. so above, rounded at tip; funicle of antennae stouter, more closely con- nected with the club. Elytra with approximate, ill-defined rows of feeble punctures; declivity flattened in (^ with a few small acute granules; concave in 9 . with three or four prominent tubercles on the obtusely elevated margin 15. planicoUis. I. X. tachygraphus, Zimm., Tr. Am. Ent. Soc. 1868, 440. Middle and Southern States. Received from Col. Motschulsky, under the name Corthylus denticulatus. 3. X. pyri Zimm., 1. c. 144; Scolytus pyri Peck., Mass. Agr. Journal, 1817, No. 3; Tomicus pyri Hun-is, Inj. Ins. ed. ult. 91. Eastern and Middle States. Sometimes quite injurious to pear trees. 3. X. obesus Lee, Trans. Am. Ent. Soc. 1868, 159. Canada to Virginia. 4. X. celsus Eichhoft; Berl. Ent. Zeitschr. 1867, 400 ; Zimm., Tr. Am. Ent. Soc. 1868, 14.5. Middle and Southern States ; under oak bark. 5. X. fuscatus Eichhoff, 1. c, 1867, 400; Zimm., 1. c. 1868, 145. Virginia to Texas : under oak bark. The nearly allied species men- tioned by me as occurring under pine bark in Georgia seems not to diflFer specifically from X impressus mentioned below. 6. X. biographus Lee, Tr. Am. Ent. Soc. 1868, 160. One specimen, Illinois. 7. X. retusicollis Zimm., Tr. Am Ent. Soc. 1868, 146. One specimen, Maryland ; under oak bark. 8. X. xylographus Zimm., Tr. Am Ent. Soc. 1868, 145; Bostrichus xylogr. Say, Journ. Ac. Nat. Soc. Phil, v, 356; ed. Lee. ii, 318 : X pint Eichhoff", Berl. Ent Zeitschr. 1867, 401. Atlantic and Pacific districts ; under pine bark ; abundant. 9. X. pubescensZimm., Tr. Am. Ent. Soc, 1868, 145. Middle and Southern States. 10. X. caelatus Zimm., Tr. Am. Ent. Soc. 1868, 146; Tomicm ccel. Eichhoff", Berl. Ent. .Zeitchr. 1867, 403; X. vicinus Lee, Tr. Am. Ent. Soc. 1874, 73. Canada to Texas and California. In this and the four following species the sensitive annulated surface of the club is larger than in the preceding species, and the tibiae are more strongly serrate. The specimens from the Pacific Coast do not differ sufficiently to warrant their being known as a distinct species. II. X. impressus Eichhoff", Berl. Ent. Zeitschr. 1867, 400. One specimen, Georgia ; under pine bark. 13. X. sparsus Lee, Tr. Am. Ent. Soc. 1868, 160. Canada and Lake Superior. LeConte. TOMICINI. 361 1:5. X. plagiatus Lee, Tr. Am. Ent. Soc. 1868, 161. Maryland ; Mr. Ulke ; this species is remarkable for the se.xual diflfer- cnces. The declivity of tlie elytra is oblique, and the surface is without tubercles, but the sutural stria is deeply impressed; in the J* there are two or three small acute granules on the obtusely rounded margin of the declivity, but in the 9 t'lese are much more prominent, and the anterior one near the suture is hooked. 14. X. hamatus Lee, Tr. Am. Ent. Soc. 1874, 80. Mojave Desert, California. No sexual difference observed in ten speci- mens examined. 15. X. planicollis Zimm., Tr. Am. Ent. Soc. 1868, 145. Maryland and District of Columbia; two specimens. DRYOOCETES Eichhoff. In this genus the prothorax is not or but slightly roughened in front ; it is less prolonged over the head than usual ; the elytral declivity is oblique, hardly flattened, not armed with tubercles ; tibiae strongly serrate. The club of the antennae is obliquely truncate, with the sensitive surface divided by transverse straight sutuies. Larger, prothorax strongly punctured, not roughened in front 1. septentrionis. Smaller, prothorax strongly punctured, slightly roughened in front 2. afifaber. Smaller, prothorax uniformly densely granulate, ely- tra with deeper strise 3. granicoUis. 1. D. septentrionis. Bostrichus sept. Mann. Bull., Mosc, 1843, 298 ; B. semicastaneus Mann., ibid. 1853, 358 ; Xylebovis i^ept. Lee, Tr. Am. Ent. Soc. 1868, 161. Alaska, Canada, Virginia ; under pine bark. Length 4.4 mm. ; .17 inch. 2. D. affaber. BostricJms aff. Mann., Bull. Mosc. 1852, 359; Xylehorm aff. Lee, Tr. Am. Ent. Soc. 1868, 163. Alaska, British Columbia, Lake Superior. Length 3.7 mm.; .11 inch. 3. D. granicollis. Xyleborus gran. Lee, Tr. Am. Ent. Soc. 1868, 163. Pennsylvania and District of Columbia. Length 3 mm. ; .08 inch. CRYPHALUS Er. The species of this genus are of very small size, not very slender form, and clothed with erect stout bristles ; tlte funicle is comi)osed of four joints, of which the first is larger and stouter, and the other three form a conical mass, thicker outwardly. The club is compressed, rounded-oval, entirely corneous and without sutures on the inner side, with straight or curved sutures on the outer side, eyes large, not emarginate ; the prothorax has but few large acute tubercles in front ; the elytra are punctured in rows, and the declivity is convex, not impressed ; the tips are conjointly rounded. The first and second ventral segments are very large, the others very short. The tibiai are only slightly dilated and scarcely perceptibly serrate. PROC. AMER. PHILOS. SOC. XV. 96. 3T 362 SCOLYTID^. fLeConte. 1. C. rigidus, n. sp. Dark brown, somewhat shining, of stout cylindrical, somewhat oval form, clothed with rather long erect pale bristles. Prothorax a little wider than long, convex, anterior edge not toothed, disc with a few distant acute tubercles in front of the middle, sparsely punctured behind. Elytra punctured in rows, setigerous punctures of the interspaces very small. Legs and antennae yellow-brown ; club oval, hairy, sutures curved, sur- face rather shining. Length 1 mm. ; .04 inch. (^. Front with a small rounded polislied excavation. Canada, five specimens. Dr. Horn. This species does not agree very satisfactorily with the descriptions of European authors, and I therefore venture to describe it as new. 2. C. striatulus Mann. Bull. Mosc, 1853, 235, Alaska, and 3. O. robustus Eichhoff, Berl. Ent. Zeitschr., 1871, 131, Am. how". are unknown to me. Group. IV. Tomioi. The species of this group are of cj'lindrical, but not very slender form, and are easily recognized by the deeply excavated elytral declivity, which is sharply margined and acutely toothed. The club of the antennae, as in the group Xylehori, is entirely corneous on the inner face, but is not ob- liquely truncate on the outer face. The sensitive surface is more or less distinctly defined, and is divided by two sutures which are more or le.ss curved or angulated in our species, but are described in some European species as straight, thus showing an affiliation with Dryocates of the prece- ding group. The tibiae are coarsely serrate, and the tarsal joints 1-3 are rather stouter than in the preceding groups. Our species represent but one genus, which may be divided conveniently according to the form of the sutures of the antennal club. TOMIOUS Latr. Sutures of antennal club strongly angulated 2. First suture of club nearly straight, second bi- sinuate 3. Sutures of club nearly straight 8. Sutures of club regularly curved, not angulated . . 9. 2. Margin of declivity with three teeth behind the most prominent one 1. calligraphus. Margin of declivity with two teeth behind the most prominent one, punctures and inter- spaces regular 2. cacographus. Margin of declivity with two teeth behind the most prominent one, punctures and inter- spaces confused 3. confusus. Margin of declivity with but one tooth behind the most prominent one 4. plastographus. LeConte. TOMICINI. 363 3. Margin of declivity witli three prominent teeth each side 4. Margin of declivity with but two prominent teeth, the posterior longer, emarginate at tip 5. emarginatus. 4. Cusps of the teeth, separate, acute 5. Anterior teeth united, front cusp rectangular 6. rectus. 0. Elytral striae composed of larger more distant punctures 6. Elytral striae composed of smaller approximate punctures 7. pini. 6. Interspaces with rows of distant punctures ex- tending nearly to the base 7. Interspaces with punctures only near the declivity 8. hudsonicus, 7. Punctures of striie moderately distant 9. interr-uptus. " " more distant 10. tridens. 8. Smaller, last tooth small, acute 11. avulsus. Last tooth long and slender, declivity more deeply concave 12. latidens 9. Elytra more densely punctured, and scarcely in rows, posterior declivity less concave, with the lower tooth long and prominent 13. concinnus. 1. T. calligraphus Grerm., Ins. Nov. 461 ; BoKtrichus exesus Say, Journ. Ac. Nat. Sc. v. 355 ; ed. Lee. ii., 317 ; Zimm., Trans. Ent. Soc. 1868, 147; ? Tomicii,s pnemorsm Eichhoff, Bed. Ent. Zeitschr. 1867, 401. Atlantic region, as far west as New Mexico. The usual size is 5 mm. ; .20 inch, but two specimens from the locality last mentioned measure 6.4 mm.; .25 inch. The sutures of the club resemble figure 1, Ferrari, p. 44, and are quite like those of the European T. stenograpkus ; which diHers by its larger size, more coarsely punctured prothorax, and especially by having but two teeth on the edge of the elytral declivity behind the most prominent tooth. For the purpose of making the distinctions between the species mentioned below more intelligible, I will describe the arrangement of the teeth in this species, in which the number is greatest. The declivity is deeply con- cave, polished, sparsely punctured, and the prolongation of the sutural stria is well impressed. At the posterior end of the second interspace is a small cusp, and a similar one at the end of the third interspace ; these two small cusps or denticles are not mentioned in the synoptic table given above. At the end of the fourth interspace is a large conical tubercle, which in this species is but slightly connected with the tubercle of the fifth interspace, which is always the most pronUnent. Behind this prominent one there are in the present species three acute equidistant teeth, and the apical acutely elevated margin. The disappearance of some of these teeth in the following species is produced by their absorption in the acute ter- minal margin, which thus becomes longer, so that in T. pini it extends around fully one-third of the declivity. 364 SCOLYTID^. [LeConte. The dimensions and relations of tliese teeth with each otlier, and the arrangement of the sutures of tlie antennal club give excellent characters for the discrimination of the species ; and I hope that the student will have no difficulty in recognizing those I have admitted in this memoir. The descriptions of those named by Mr. Eichhoff are, however, too indefinite for me to venture to pronounce with certainty upon tlieir affinities ; they seem, moreover, if I may judge from the short diagnoses, to have been unduly multiplied upon individual differences of slight importance. 2. T. cacographus Lee, Tr. Am. Ent. Soc. 1868, 163 ; Bostrichus pini\ Zimm. (nee Say), ibid, 147. Soutliern and Western States. Similar to the preceding, but usually of smaller size, (3.5-4 mm.; .14-.16 inch); the cusp of the second interspace is very small, and that of the third is wanting ; that of the fifth is com- pressed and scarcely more prominent than that of the fourth interspace and is somewliat connected with it ; there are but two teeth between the tooth of the fifth interspace and the terminal acutely elevated margin, and these teeth are all of them less prominent than in T. calligrapJius, in .some specimens (rj*), but equally prominent in others, 9> those less acute tlian in T. caligraphus. The interspaces from the third outward are marked each with a regular series of punctures behind the middle, whereby it differs from the next species. The club of the antenna? is quite similar to that of T. calUgraphus. 3. T. eonfusus, n. sp. Quite like T. cacographuf, except that the elytral striaj are composed of larger and more transverse punctures ; the punctures of the interspaces are very distant as fer as the middle, but become irregular and confused with tlie strife behind. The teeth on the margin of the declivitj^ are arranged just as in T. cacographus, but are larger and stouter, and the one of the fifth interspace has a tendency to become curved at the end. The club of the antennte as in the two preceding species. Length 4 mm. ; .16 inch. Southern California and Arizona. I have seen but three specimens. 4. T. plastographus Lee, Tr. Am. Ent. Soc. 1868, 163. Middle California and New Mexico ; two specimens. This species closely resembles T. eonfusus in the sculpture of the elytra, the interstrial punc- tures being confused behind, but on the inner interspaces from the third to tlie fifth there are no punctures excopt near the declivity. The tooth of the tburth inters])ace is more compressed and closely united with the verj' prominent tooth of the fifth interspace, which is cylindrical and obtuse ; there is but one tooth between that of the fifth interspace and the apical elevated margin, but this is large and conical. The sutures of the antennal club are very strongly angulated. Length 4.5 mm.; .18. 5. T. emarginatus, n. sp. Cylindrical, shining, blackish piceous, sparsely clothed with long yel- lowish hairs. Head granulated, with two small frontal elevations, the anterior one near the margin, which is fringed as usual witli short yellow LeConte.j TOMICINI. 365 hairs. Prothorax nearly one-half longer than wide, sides parallel, base broadly rounded, margined only near the side ; anterior half of disc asperate with granules ; posterior half sti'ongly and tolerably densely punctured, without distinct dorsal smooth space. Elytra with striae com- posed of strongly impressed transverse punctures, interspaces wide, 1-7 smooth except near the declivity, where there are a few punctures ; outer interspaces with punctures gradually becoming confused near the sides ; declivity deeply concave, strongly and coarsely punctured, with the sutural stria deeply impressed ; the teeth of the second and third inter- spaces are small, but acute ; that of the fourth is larger, conical and sub- acute ; that of the fifth is large, compressed and emarginate ; the inter- val between it and the apical elevated margin is wide, and in some speci- mens is marked by a single indistinct cusp ; the apical margin is long, and its anterior angle is more prominent than usual ; the sutural angle is slightly prominent, as is frequently the case in other species, a character of no importance. The sutures of the antennal club are nearly straight, slightly bent forwards at the sides. Length 6.6 mm. ; .26 inch. Oregon. Found in abundance by Lord Walsingham. 6. T. rectus, n. sp. This species resembles the preceding in form and color ; but is of smaller size, and the prothorax is less deeply punctured behind, with a distinct smooth medial space. The elytral striae and interstrial punctures are similar, but the teeth of the declivity are quite different ; the cusps of the second and third interspaces are small, but distinct and acute ; that of the fourth is broad, compressed and closely united with that of the fifth, which forms a prominent tooth at its posterior extremity, the anterior extremity of this conjoined mass is not acute, but barely rectangular, and the apical acute margin is a rather large acute tooth. The body is thinly clothed with long yellow hair, especially in front and behind. The antennal club is marked with three sutures, the first and second curved at the middle, bent forwards at the side, and the third nearly straight. Length 4 mm.; .11 inch. One specimen. New Mexico and two from Oregon. I should consider these as badly developed specimens of T. plastographus, except for the dif- ferences in the antennal club. 7. T. pini Harris, Inj. Ins. ed. ult. p. 88, f. 43 ; Lee, Tr. Am. Ent. Soc. 1868, 163; BostricTius pini Say, Journ. Acad. Nat. Sc. Phil, v, 257; ed.Lec. ii, 219; T. prcefrictus Eichhotf, Berl. Ent. Zeitschr. 1867, 401. The elytral striae are composed of small, transverse punctures; the inter- spaces are wide and flat, and are marked with only a few punctures near the declivity; the latter is deep, strongly punctured, as in all the preceding species, with the sutural stria deeply impressed; the tooth at the end of the second interspace is small, but acute and distinct; that of the third is want- ing; that of the fourth and fifth are acute, and connected by an elevated ridge, behind them there is one acute compressed tooth, which is scarcely less prominent, and this is followed after a narrow interval by the apical margin. 366 SCOLYTID^. [LeConte. The first and second sutures of the antennal club are broadly curved at the middle, and bent forwards at the sides as in the preceding species, T. rechis- Length 4 mm.; .16 inch. Northern and Western part of Atlantic district, extending to Canada and Hudson Bay Territory. Harris, who is good authority upon Say's species, indicates this as the one described by that author. It is destructive to Nerthern pine forests in the same manner, but, as far as observation yet goes, to a less extent than T. cacographus is in the South. I have there- fore felt warranted in rejecting Dr. Zimmermann's determination of Say's species, and have applied a different name to the insect which has caused so great destruction to the pine forests of the Southern States. 8. T. hudsonicus, n. sp. Specimens of a larger size (5 mm.: .19 in.), from Hudson Bay Terri- tory have the elytral strise composed of much larger punctures, than in T. pini, and the tooth of the fifth interspace has a tendency to become thicker and curved. I would be unwilling to designate it by a separate name, were it not that the sutures of the antennal club are not bent forward at the sides, but are nearly straight. 9. T. interruptus Lee, Tr. Am. Ent. Soc. 1868, 164; Eichhoif, Berl. Ent. Zeitschr. 1868, 374; Bostrichus int. Mann., Bull. Mosc. 1852, 357. Alaska and Hudson Bay Territory. The teeth of the margin of the de- clivity are arranged as in T. pini, and hudsonicus; the stria are composed of still larger punctures tlian in the latter, and the punctures of the inter- spaces extend forward, almost to the base. 10. T. tridens Lee, Tr. Am. Eut. Soc. 1868, 164; Eichhoff, Berl. Ent. Zeitschr. 1868, 274; Bostrichus tr. Mann., Bull. Mosc. 1852, 357. The scutellum is described by Eichhoff as smooth, but in my specimens it is as distinctly channeled as in the five specimens of T. interruptus; as in fact it is in all the preceding species except T. caUigraphus und marginatus; this channel is less distinct in T. plastographus than in the others, but at best, is an illusive character of but little worth. Alaska, one specimen. Very similar to T. interruptus, but the punctures of the elytral striae are larger and more distant, and those of the interspaces nearly as large, though less numerous. The head is more finely granulate, strongly refuse in front, with a broad frontal groove. This character is prob- ably sexual rather than specific. 11. T. avulsus Eichhoff, Berl. Ent. Zeitschr. 1867, 402; Bostrichus av. Zimm., Tr. Am. Ent. Soc. 1868, 147. Southern States. A much smaller species (2.5 mm.; .10 inch); the elytral striae are composed of close-set quadrate punctures; the interspaces are wide, and as far as the sixth have only a few punctures near the declivity ; the latter is more abrupt than in the others, and nearly perpendicular, but deeply concave, and coarsely punctured, as usual, with the sutural stria deeply impressed; the tooth at the end of the second interspace is small, but well defined; that of the third is wanting; those of the fourth and fifth are LeConte.] TOMICINI. 367 united by a ridge, the angles of which are very little prominent; the apical ridge is long, and between it and the last mentioned tooth is an acute tooth which is equally prominent. The prothorax is nearly as long as the elytra, more finely and densely asperate in front, and more finely punctured behind. The sutures of the antennal club are nearly straight. 12. T. latidens Lee, Tr. Am. Ent. Soc. 1874, 72, California, at Lake Tahoe; Mr. Crotch. This species is smaller (3 mm.; .14 inch), than T. pini, and of more slender form. It is easily distinguished from all the other species by the much more deeply concave declivity of the elytra; the cusp of the second interspace is acute; the teeth of the fourth and fifth are united together, forming a ridge which has three distinct cusps, of which the middle one is more prominent; the tooth be- tween this ridge and the terminal margin is unusually prominent. The stria are composed of deep close-set punctures, and the interspaces are marked with rows of small punctures. The sutures of tlie antennal club are nearly straight. 13. T. concinnus Lee, Tr. Am. Ent. Soc. 1868, 164; Bostrichus cone Mann., Mosc. 1852, 358. Alaska, three specimens. Leugtli 4.2 mm.; .17 inch. A very distinct species, with the elytra confusedly punctured; the declivity oblique, nearly flat, punctured, with the sutural stria scarcely distinct; the teeth are but three each side, of which the anterior one is small, and the third longer and larger than the second. Group V. Micracides. The funicle of the antennae is 6-jointed, the outer joints broader; the club is pubescent and usually marked with sutures on both sides, as in the group Gortliyli, but these sutures are usually very much curved, though some- times nearly straight ; the basal joint is long, and in one sex is fringed on the front margin with very long hairs ; the eyes are transverse, coarsely granulated, either distant or contiguous beneath. The protho- rax is produced over the head, rounded and asperate in front, and its anterior opening is very oblique as in most Pityophthori. The elytra are usually punctured in rows, convexly declivous behind, then con- cave near the tip, and sometimes asperate with small granules ; the sutvire is produced into a sharp point, except in T. fimbricornis. The tibiae are compressed, armed with a terminal hook, outer edge acute, not at all toothed (or but slightly so in M. rudia), and fringed with long hair; the front pair are as broad at base as at tip ; the joints of the tarsi 1-3 are rather stout in all the species except M. hirtella, where they are longer and more slender, the fourth joint is small, and the fifth long, slender, with divergent simple claws. Although important structural differences are seen in the species, I regard them as constituting but two genera. This group is excellently defined by the 6-jointed funicle, and the broad parallel front tibiae. 368 SCOLYTID^. [LeConte. Club pubescent and aiinulated on botli sides, outer joints of funicle slightly broader, not fringed ; elytra aculeate at tip MICRACIS . Club sparsely hairy, corneous, without sutures on upper surface ; with two indistinct sutures on the lower surface ; outer joints of funicle transversely pro- duced, fringed with long hairs ; elytra not aculeate. THYSANOBS. MICRACIS Lee* Sutures of club forming narrow curves 2. " " " broad curves 4. " " ■' nearly straight 5. 2. Eyes distant l)eneath 3. Eyes contiguous beneath, elytra more finely punctured, clothed with very short stout hair 3. nanula. 3. Elytra nearly glabrous 1. suturalis. " clothed with short stout hair 2. aculeata. 4. Elytra nearly glabrous, with rows of coarse punctures, asperate near the tip 4. rudis. 0. Elytra sparsely clothed with long hair, punctured iu rows, asperate behind 5. hirtella. 1. M. suturalis Lee, Tr. Am. Ent. Soc, 1868, 165. Illinois, boring in the branches of Xanthoxylon: Dr. Henry Shimer. The club of the antennae is more than one-half longer than wide; the gular space between the eyes is wide ; the punctures of the elytra are fine and arranged in numerous distinct rows ; there are a few short hairs near the tip in some specimens, but in others even these are wanting. Length 2.5 mm. ; 10 inch. 2. M. aculeata Lee, ibid. 1868, 165. Virginia, one specimen. The antennal club is of the same form as iu M. suturalis, and the eyes are as widely separated below ; the elytra are clothed with short sub-erect yellowish hairs, which are slightly clavate ; the punctures are larger and denser than in the preceding, and not ar- ranged distinctly in rows, though owing to the manner in which the short bristles are placed the interspaces are feebly indicated. Length 2.7 mm. ; .11 inch. 3. M. nanula n. sp. Slender cylindrical, much smaller and narrower than the other species,, brown ; antenn* reddish-brown, with the first joint fringed with long hair ; club but little longer than wide, sutures forming less narrow curves. Eyes contiguous beneath; i)rothorax one-half longer than wide, nearly opaque, sparsely and finely granulate behind, asperate with small acute dis- tant tubercles in front ; very thinly pubescent, with short erect hair, especially towards the sides. Elytra somewhat shining, feebly and indis- * I have in the synopsis incorrectly described the funicle as .j-jointed. LeConte.] TOMICINI. 3G9 tinctly punctured, with numerous rows of short pale bristles ; posterior declivity convex, suturaf point small, less prominent than in the other species. Length 1.7 mm. ; .07 inch. Haulover, Florida ; Fehruar}', Messrs. Hubbard and Schwarz. One specimen. The eyes are more coarsely granulated than in the other species, and there is no gular space between them. 4. M. rudis, n. sp. Cylindrical, proportioned like M. suturalis, nearly black, rather shining, antennte reddish-brown, sutures of the club forming broad curves; first joint with a tuft of hairs near the tip. Head very deeply excavated (almost as in Xi/loterus c^) ; eyes widelj- distant below. Prothorax somewhat longer than wide, broadly rounded in front, sides parallel behind; surface sparsely granulate behind, rough with numerous tubercles in front. Elytra scarcely pubescent, rugosely punctured; punctures large, arranged in approximate rows; interspaces rough with small acule tubercles on the declivity which is convex, except near the tip, which is concave; sutural point well de- veloped. Length 2.5 mm. ; .10 inch. Detroit, Micliigan; Messrs. Hubbard and Schwarz; one specimen. The tibia; are feebly toothed on the outer edge. 5. M. hirtellus, n. sp. Cylindrical, of the same form as M. suturalis, dark brown, thinlj^ pubes- C3nt with fine yellowish sub-erect hair. Head flat, with a frontal tuft of hair ; eyes widely separated beneath. Antenna; with the scape more densely fringed than usual; club small, rounded; sutures nearly straight. Pro- thorax longer than wide, nearly semicircular in front, densely but finely granulate behind; asperate with numerous sharp tubercles in front, disc feebly impressed, and more hairy each side of the median line behind the middle. Elytra rugosely punctured; punctures arranged in rows; de- clivity rough with small tubercles; convex, sutural point prominent. Length 2.7 mm.; .11 inch. One specimen from Southern California, collected by Mr. Hardy and kindlj" given me by Dr. David Sharp. The tarsi are longer and more slender than in the other species. THYSANOES n. g. This genus is allied to Micracis; the front tibiiie are of the same parallel form, as wide at base as at tip, and not serrate on the outer edge; the an- tennse are, however, quite different; the scape is fringed as in Micracis; the first joint of the funicle is longer than wide; thicker at the extremitj^; the remaining five joints are very distinctly separated, and become rapidly w^ider and transverse, by being prolonged at the upper side; thej' are also fringed with very long hair; the club is elliptical, compressed, rather shining, sparsely hairy, without distinct sensitive surface; without sutures on the inner face, with two indistinct sutures on the outer face, of which the lower one seems straight, and the distal one curved. The eyes are large, trans- verse, coarsely granulated, and not emarginate; they are separated beneath PROC. AMER. PHILOS. SOC. XV. 96. 2u 370 SCOLYTID^. [I^eConte. by a wide gular space. The first and second ventral segments are very large, the others short. 1. T. flmbrioornis, n. sp. Slender, cylinttrical, yellowish brown. Head (^) shining, flattened, with a small fovea on the vertex. Prothorax longer than wide, sparsely asperate in fi"ont and slightly hairy, then not densely punctured for a short distance, aid nearly smooth behind the middle, and at the sides. Elytra with rows of small punctures; punctures of the interspaces smaller and more distant, and from them proceed short, clavate, pale bristles in regular rows; declivity convex, not at all impressed or retusc, sutural line very slight- The eyes are transverse, slightly emarginate and coarsely granu- lated. Front tibiae broad from the base, sides parallel, outer edge acute, not serrate. Length 1.8 mm.; .075 inch. Lancaster County, Pennsylvania. Abundant in twigs of hickory; easily recognized by the characters given above. The first and second ventral segments are each as long as the others united; third, fourth, and fifth short, equal, last dorsal slighlly visible from beneath. The bristles are not striate as in HypotJienemus, but finely granulated. Tribe IL S€OL,ytini. The species of this tribe are easily known by the peculiar conformation of the ventral surface, which is, namely, flattened or concave, and obliquely ascending from the posterior end of the first segment to the fifth ; the first and second segments are closely connate, and the other three are separated by straight sutures, about equal in length, and united are hardly longer than the oblique part of the second segment. The antennal club is pubes- cent on both sides, nearly solid and marked with indistinct but strongly curved, or rather angulated, sutures; the scape is short, the first joint of the funicle rounded, the remaining joints (five in number) closely united forming a pedicel to the club. The thighs are stout, the tibiie rather broad and compressed; the front pair are not serrate on the outer edge, which is (^uite sharp ; the outer apical angle is armed with a long curved hook, and the inner angle is nearly rectangular but not armed with a spine ; the outer niai'gius of the middle and hind tibine are feebly serrate, they are truncate at tip, and armed with two spines or spurs at the outer angle, and a much smaller spine at the inner angle ; the tarsi are slender, as long as the tibiae ; the third joint is deeply bilobed, the fourth small, the fifth long, with simple divergent claws. The side margin of the prothorax is distinctly defined, a very rare character in Rhynchophora, and the front coxaj are separated by the pro- sternum, which is very short in front of the coxae. In some of the species the ventral segments of the (^ are ornamented with spines, or acute tuber- cles such as have been already mentioned in Proctoms (p. 212) and Pla- typus (p. 343). But one genus represents this tribe. LeConte.] SCOLYTINI. 371 SCOLYTUS Oliv. The name of this genus was first proposed by Geoffroy in 1763 ; but for reasons wliich I have given in detail elsewliere,* I prefer citing Olivier, 1789, for its first proper use in Zoology, f Elytra with distinct stri« of close set punctures. ... 2. Elytra with numerous rows of punctures 3. 2. Strise deep, interspaces narrow with single rows of fine punctures bearing short hairs ; (abdo- men of (^ with several spines) 1. quadrispinosus. Striae less deep, interspaces wider, with single rows of fine punctures ; (abdomen of both sexes without spines, coarsely punctured) .... 2. fagi. Striae hardly impressed, interspaces wide, with single rows of fine punctures ; (abdomen (j^ with one spine at the middle near the basej . . 3. unispinosus. Strife hardly impressed, interspaces wide towards the suture with confused small punctures ; (abdomen finely punctured, third and fourth ventral segments with very small tubercles at the hind margin) 4. californicus. 3. Elytra nearly glabrous 4. Elytra clothed with long fine erect hairs 5. muticus. 4. Abdomen sparsely punctured 5. Abdomen densely punctured, anterior face of de- clivity large, perpendicular, margined 6. prseeeps. 5. Punctures of elytra not larger towards the base.. 6. Punctures of elytra larger and somewhat scabrous towards the base 7. subscaber. 6. Second ventral segment not tuberculate 8. sulcatus. Second ventral segment with a small apical tubercle 9. ventralis. 1. S. quadrispinosus Say, Journ. Ac. Nat. Sc. Phila. iii, 333, (cJ*); ed. Lee, ii, 183; Lee, Tr. Am. Ent. Soc. 1868, 165; S. carym Riley, Prairie Farmer, Febr. 1867; Walsh, Practical Entomologist, ii, 58; Lee, Tr. Am. Ent. Soc. (9) 1868, 166; Riley, Noxious Ins. Missouri, (1873) v, 103, (d^, '^); S. mw^icits t Cliapuis, (nee Say,) Mem. Soc.Roy. Sc. Liege, 1869. ^. Head flat, longitudinally finely aciculate, fringed with long curled hairs; anterior part of ventral declivity very deeply concave; the margin. is acute, subsinuate and more or less angulated at the middle; the concave face of the second segment is more or less carinate, and nearly smooth; the- * On some changes in the nomenclature of North American Coloeoptera, which have been recently proposed. Canadian Entomologist, 1874, p. 185. t The table of species in my memoir (Trans. Am. Ent. Soc. 1868, 165,) needs some modification on account of the discovery of additional species, and the^ sexual characters of some of those already described. 372 SCOLYTID^. [LeCoiite. lateral angles ar3 slightly produced into short spines; the next segment has three spines, which are sometimes very long, sometimes short; the fourth segment is concave, rounded and strongly margined behind, sparsely punc- tured, and has a more or less distinct tubercle at the middle of the hind margin; the fifth segmsnt is very short, and retracted, visible only from behind. 9- Head less flattened, punctured at the sides, aciculate only at the mid- dle, thinly clothed with long hair; anterior face of ventral declivity flat- ten'id, margined, nearly perpendicular, sparsely punctured; remaining seg- ments flat, strongly punctured; fifth rounded behind, as long as the third and fourth united. New York, Georgia, Kansas, Missouri; for an excellent series bred from hickory trees, I am indebted to Mr. Riley. Length 4-5 mm. ; .16 -.20 inch. 2. S. fagi "Walsh, Practical Entomologist, ii, 58, (J*, ?); Lee, Tr. Am. Ent. Soc. 1868, 166. (^. Head flattened, punctured, densely clothed with long erect hairs; ventral surface strongly punctured, more sparsely in front; declivity mar- gined, nearly perpendicular; fifth segment as long as the third and fourth longitudinally impressed. 9. Head more convex, less hairy; the ventral segments more strongly punctured. Illinois, one pair. Length 5.5 mm.; .33 inch. Depredates upon beech trees, according to Mr. Walsh. 3. S. unispinosus, n. sp. Cylindrical, shining black, head aciculate, thinly clothed with long erect hairs. Pr^thorax a little longer than wide, sides rounded and feebly con- stricted in front, finely and not densely punctured. Elytra with feebly im- pressed striae composed of small punclures; interspaces with single rows of much smaller punctures. Ventral declivity feebly punctured; anterior edge somewhat prominent, but obtuse at the middle; a long obtuse spine projects from the middle of the nearly perpendicular face; fifth segment hardly longer than the fourth, concave, rounded and strongly margined behind. Length 3.3-3.7 mm.; .09-. 13 inch. Two specimens, Oregon. The head is more flattened in one than in the other, but I observe no other indication of sexual diff"erence. The antennte are ferruginous, and the tarsi brown, as in the other species of the genus. 4. S. californicus Lee, Tr. Am. Ent. So3. 1868, 166. One (^, California; Mr. A. Murray. Length 4.5 mm.; .18 inch. 5. S. muticus Say, Journ. Ac. Nat. Sc. Phila. iii, 333; ed. Lee, ii, 183; Lee, Tr. Am. Ent. Soc. 1868, 166. Pennsylvania, one (^. Easily known by the elytra with numerous rows of strong, but distant punctures, which bear long, erect, soft hairs. Head flat, finely aciculate, sparsely fringed with long hair. Ventral surface sparsely punctured; declivity oblique, margined; fifth segment triangularly LeConte.] HYLURGINI. 373 impressed and densely fringed with long liair behind. Length 3.8 mm. ; .15 inch. 6. S. praeceps, n. sp. Cylindrical, black, shining, head thinly clothed with long erect hair.pro- thorax scarcely longer than wide, sides rounded in front and feebly con- stricted; surface deeply but finely and distantly punctured. Elytra with numerous rows of rather distant punctures, and showing some traces of very fine strife; ventral surface strongly punctured in front, densely aiul finely behind; declivity large, perpendicular, acutely marginate; second ventral segment faintly carinate near the tip; fifth ventral concave, strongly margined, as long as the third and fourth united. Length 3 mm. ; .12 inch. California, Calaveras; Mr. Crotch. The head of the (^ is more flattened, more distinctly aciculate and less punctate than in the 9> and is-also more hairy. Otherwise I observe no sexual ditferences. 7. S. subscaber, n. sp. Cylindrical, black, shining, head thinly clothed with erect hairs, finely aciculate behind, punctulate in front. Prothorax a little longer than wide, sides feebly narrowed, and slightly constricted in front; apical margin and sides distinctly punctured, disc behind obsoletely punctulate. Elytra with the suture more deeply concave towards the base than usual; marked with faint traces of striae, and rows of punctures which are very small behind, but become larger and elevated into granules near the base; the apical margin is concave, and densely, rugoselv pane ured as usual, and very feebly serrate. Ventral declivity flat, oblique, scarcely concave, feebly punctured, anterior margin fine, not prominent; fifth segment longer than the third and fourth united, slightly concave; posterior margin acutely prominent. Length 4.2 ram. ; .17 inch. Vancouver Island, Oregon and California; three specimens without sexual differences. 8. S. sulcatus Lee, Tr. Am. Ent. Soc. 1868, 167. One specimen. New York. The rows of punctures are alternately very slightly larger, so that in certain lights there are feeble indications of striae, but they are not coarser near the base. Length 3.7 mm. ; .15 inch. 9. S. ventralis Lee, ibid. 1868, 167. Washington Territory, George Gibbs. Similar in sculpture to S. stdcatun, but the ventral declivity is larger, the second segment is armed behind with an acute compressed tubercle, and the third and fourth segments are more flattened, and less sparsely punctured ; the fifth segment is as long as the two preceding united, concave, with reflexed posterior margin. Length 4 mm.; .16 inch. Tribe IIL hylirgiki. In this tribe the head is exposed, not covered by a prolongation of the prothorax ; the latter is truncate in front or but slightly rounded, and not differently sculptured. The antenna) vary in form according to the group. 374 SCOLYTID^. [LeConte. and in Hylastes assume very much the same form as in Cossonidce, to which some of these insects bear a strong resemblance. They may be dis- tinguished, liowever, by the compressed and serrate or spinulose tibite. The tliird joint of the tarsi is frequently dilated and bilobed, and the four;h joint, less conspicuous than in the preceding tribes, is sometimes quite indistinct. The first and second ventral segments are always separated by a well-defined straight suture, more deeply impressed tlian in Tom'cini. The prothorax is bisinuate behind, with a well defined antescutellar angle in some of the species of all the groups except Hylastes. They thus manifest a tendency to the Aiitliribidce [Choragus, &c.), as Hylastes does towards the Cossonidce. In several genera the front coxie are separated by the prosternum, and i;i Dendroctonus and the allied European genera Hylitrgios and Blastopha- giis the second and third ventral sutures are curved backwards at the sides. In Hylastes the prosternum is deeply excavated for the reception of the short beak. In all these characters resemblances are seen to different tribes of Gurculionidw. Our genera indicate the following groups : Club oval, annulated, scarcely compressed S. " strongly compressed, not annulated, pubescent on both sides Polysrraphl. 2. Joints of club separated Pttloeotribl. • ' " closely connate, as 'usual 3. 3. First and fifth ventral segments elongated, scutellum not depressed ■*• Ventral segments nearly equal and scutellum depressed H y inrg'i. 4. Prosternum very short, funicle with few joints Cryptiirgl. Prosternum excavated ; funicle 7-jointed Hy :astes. Group I. i*olyg^raphi. This group is sufficiently defined by theclubof the antennae being large, strongly compressed, pubescent and sensitive, and without sutures on both sides, and by the antennie being inserted as usual at the sides of the front. The tibite are broadly dilated, obliquely rounded at the apex, and finely S3rrate ; th^ third joint of the tarsi is not bilobed, and the fourth, though small, is distinct. The basal margin of the elytra is acute and serrate. Two genera occur in our fauna : Eyes slightly emarginate, funicle attached at the side of the club, outer joints slender OHRAMESUS. Eyes completely divided, funicle attached at the end of the club, ou'er joints gradually stouter POLYG-RAPHUS. OHRAMESUS Lee. Rhopalopleums Chap. B )dy stout, oval, convex, clothed with small scales and stout, erect bristles, whic'i are not striate as in Hypothenemus liispidulus (p. 355). LeCont.e.] HYLURGINI. 375 Head but slightij^ prolonged in front of the eyes, which are large trans- verse, rather finely granulated, slightly eniarginate at the insertion of the antenna;. Antennse inserted at th3 sides, scape long, slender, curved, fuaicle 5-jointed, first joint stouter, a little lo.iger than wide ; 2-~) slender, closely united, attached to the side of the club, which is very large and strongly compressed, pubescent on bolh sides, not marked with sutures ; the lower edge is nearly straight, the upper is curved and sinuate, and each end is obtusely rounded. Ventral surface moderately convex, sutures straight, well impressed, first and second segments a little longer. Tibiae dilated, finely serrate on the outer side and at the tip, which is broadly rounded; apical spine at the inner angle short ; tarsi with joints 1-3 short, fourth small, but distinct ; fifth as long as the others united, with large simple divergent claws. Bristles long, scales of elytra sparse 1 . icorise. Bristles short, scales dense 2. Chapuisii. 1. O. icoriae Lee, Tr. Am. Ent. Soc. 1868, 168; Bhopalopleurus Le- contei Chapuis, Mem. Soc. Roy. Sc. Liege, 1869. (^. Head deeply concave. $ . Head flattened, with a feeble curved impression. Middle and Western S;ates, in hickory twigs. The present is an excel- lent example of the uncertainty of entomological descrip.ions. In the memoir above cited, I described the funicle as having but one distinct joint, "the remaining joints are obsolete, and visible only as a corneous ridge on the upper edge of the base of the club," which, in fac , was the appearance presented by all the specimens in my cabinet. But on receiv- ing the memoir of my friend. Dr. Chapuis, suspecting that I might have made an error by neglecting to observe the antennae in all directions, I re- laxed some specimens, and was greatly pleased to find that tlie very extra- ordinary character upon which he had founded Bhopalopleurus really exis'ed in my species. The other characters given in my detailed d. 'scrip- tion above cited are, however, so characteristic, that the genus might have been recognized, without reference to the antennal funicle; apart of the bD:ly, which, as I h.ive said above, I believe to be of bat little valuj in t'.ie classification of these insects. Length 1.5 mm.; .03 inch. 2. O. Chapuisii n. sp. Oval, robust, convex, black, with the antennoe testaceous, precisely as in G. icoriiB, and differing from it only by the interspaces of the elytra being densely clothed with smill thick scales, and single rows of rather short bristles, and by the strite being narrower and finely creuulate, instead of coarsely punctured. Length 1.5 mm.; .06 inch. One r^ Louisiana. The front is triangu'arly flattened and marked with a fine curved line, at the middle of which is a small transverse fovea. POLYGRAPHUS Er. In this genus the body is less robust, and of the usual cylindrical form, narrowed in front, and rounded behind, as seen in HyUilnui. The eyes 376 SCOLYTID^. [LeConte. are dunded, aid tli3 p.irts connected by a smooth corneous line. The scape of the ante-iniB is long and strongly clavate ; the funicle is 5- jointed, the first joint stout, as long as the others united ; 2-5 gradually in- creasing in thickness, short, closely united, forming a conical mass, to which the club is attached at the upper extremity of its base ; the latter is strongly compressed, puljescent, and witliout sutures on both sides ; oval-pointed, with the lower sido less curved than the upper, and broader at the base than towards the tip, so as to be slightly securiform. The el3'tra are rugosely punctulate, scarcely striate, clothed with small stout scales, and with rows of scarcely longer erect brislles. The ventral segments are nearly equal, but the first and fifth are a little longer. The tibise are mod- erately dilated with three or four small teeth near the tip, which is obliquely truncate ; the inner angle is slightly mucronate ; the tarsi are slender, the third joint not emarginate, the fourth small but distinct, and the fifth as long as tlie others united, with divergent simple claws. 1. P. rufipannis Lee, Tr. Am. Eat. Soc 18G8, 169; Apate (Lepisomus') rufipenn's Kirb}', Fauna Bor. Am. iv, 193, tab. 9, fig 2 ; A. (L.) wgriceps Kirby, ibid, 194, (imma'ure); P. saginatus Mann., Bull. Mosc. 1853, 237; Ifyle^imis I'ufipennis Mann., ibid. 1853, 237. New Hampshire to Alaska, also in Georgia. The surface of the elytra 's slightly asperate near the base, which is very acutely margined ; the rows of punctures which represent the strite are less indistinct in some specimens than in others. The male has the front slightly impressed, with a small frontal tubercle sometimes divided into two. Length 2-2.5 mm.; .08-. 10 inch. In som3 specimens a few separate lenses are scattered along the line between the two parts into wliicli tiie eyes are divided ; in others thesj are entirely absent. Apdte {Lepisomiu) hrevicornis Kirby, loc. cit. 194, may belong to this genus, and would difter by the shorter antenntB with smaller club. The type is unfortunately in bad condition, and quite irrecognizable. Group IL Phlwotribl. This gr.iup is intermediate between the preceding and the following, and differs from both by the antennal club being composed of three separate joints, which in PMceotribuH form a lamellate ma's, and in the European genns PhlceopJdhoms a loosely articulate club as in many Clavicornia. Dr. Cliapuis describes the antennsB as frontal ; but I see no special difference i 1 their position from that observed in the preceding and following groups. The head is but very little prolonged in front of the eyes, and there is no preocular groove for the reception of tlie scape of the antennae such as is observed in the two foll:)wing groups. The tibiae arc dilated, compressed, obliquely rounded and serrate at lip, wi h the inner angle slightly muero- mte ; the tarsi have the joints 1-3 short, gradually a little wider ; third not emarginate ; foirth very small ; fifih as long as the others united, witli divergent simple claws. The basal margin of the elytra is acute and serrate. LeConte.] IIYLUEGmi. 377 But one genus is represented in our fauna: PHLCEOTRIBUS Latr. The eyes are transverse, oblique, and not emarginate. Two species are known to me ; botli clothed with stiff pubescence. A. Lamellate joints of club very long ; tibiae finely serrate. Elytra with s'rite of large punctures, interspaces nearly flat, rugosely punclulate, sides and apex feebly ser- rate, prothorax finely punctulate 1 . liminaris. B. Lamellate joints of club short, not more than twice as wide as long ; tibiae coarsely serrate. Elytra with striae of large punctures, interspaces narrow, serrate with single rows of small acute granules, sides and apex strongly serrate ; prothorax finely not densely graiiulato-punctate 2. frontalis. 1. P. liminaris Lee, Tr. Am. Ent. Soc. 1868, 148; Tomicus liminaris Harris, Inj. Ins. ed. ult. 88. Middle States, depredating on peach trees, and according to Miss Marga- retta Morris (Downing's Horticnlturalist, iv, 502), producing the disease called the yellows. Length 2.3 mm. ; .85 inch. 2. P. frontalis Zimm., Tr. Am. Ent. Soc. 1868, 148; Bostrichus fr. Fabr., Syst. El. ii, 389; Scolytusfr. Oliv., Ins. No. 78, 13, PI. 2. f. 20; Phlmophthoms gran'colUti Eichhoff, Berl. Ent. Zeitschr. 1868, 149 ; Phlmo- tribus gr. Chapuis, Mem. Soc. Roy. Sc. Liege. (^. Head broadly concave, armed with a small erect acute spine each side above the insertion of the antennae ; the spines vary in length, according to the individual. 9 . Head nearly flat, with a fiiint crescentic impression. District of Columbia, Georgia, Iowa ; found in Missouri by Mr. Rilej-, depredating on mulberry. I have mentioned Phlceotribiis setulosus and dubius Eichhoff^, (Berl. Ent. Zeitschr. 1868, 149), as synonyms of this spe- cies ; but from the memoir of Dr. Chapuis, above cited, I learn that these are really South American species. The locality given by Mr. £10111100" is there- fore incorrect, and his descriptions are so indefinite as to render my error quite excusable. This species is of the same size and form as the preceding, but is readily recognized by the differences in the antfinnal club and in the sculpture of the prothorax and elytra. Group III. Hylnrs^i. In this group the form varies from oval to cylindrical; the antennae are inserted at the sides of the front, immediately before the eyes, which are large, transverse, slightly or not at all emarginate, and finely granulated. The scape of the antennae is long, and is received in a narrow, transverse groove in front of the eyes; this groove becomes more developed in the next PKOC. AMER. PHILOS. SOC. XV. 96. 2v 378 SCOLYTID^. [LeConte. group, but is not apparent in the preceding groups or tribes ; tlie mandibles are stronger, nearly flat above, and the labrum is obsolete; these characters indicate a recurrence towards the normal Rhynchophora. The funicle of the antennae is 5-7 -jointed; the first joint stout, the others slender, closely united; the club is very slightly compressed, annulated and pubes- cent, oval-pointed in Hylesinus, circular, compressed, nearly glabrous, with transverse sutures in Dendroctonus. The ventral segments are convex, nearly equal; the first and fifth somewhat longer, the sutures deep and straight. The tibiae are dilated, and strongly toothed except in Cnesimus, where they are not serrate; the third joint of the tarsi is usually bilobed, and the fourth very small; the fifth long with divergent simple claws. The basal margin of the elytra is elevated and acute as in the two preced- ing groups, and the protliorax is narrowed from the base forwards. Funicle 7jointed 2. " 6-jointed BLASTOPHAGUS. " 5-jointed 4. 2. Tibiae with few teeth; protliorax strigose longi- tudinally, anterior coxae widely separated; club elongate-oval, compressed CNESINUS. Tibia? serrate; club elongate-oval, pointed, not compressed HYLESINUS. 3. Club oval, obtusely pointed; first joint of tarsi not shorter; outer joints of funicle much broader PHLCEOSINUS. Outer joints of funicle scarcely broader CH^TOPHLCEUS. Club oval-elongate; first joint of tarsi short CARPHOBORUS. " circular, compressed; first joint of tarsi not shorter DENDROCTONUS. CNESINUS Lee. NemopMlus Chapuis. I have already sufllciently described this remarkable genus, which is at once known by the widely separated front coxte, and the longitudinally aciculate protliorax. Dr. Chapuis is in error in describing the tibiae as "extus integerrimae;" the front tibiae have three acute teeth directed back- wards, of which the third is apical, and the others near the apex; the outer apical angle of the middle tibiae is produced, and emarginate at tip. The third joint of the tarsi is visible but not conspicuously emarginate; the joints 1-3 are rather stout, nearly equal, and the fifth is shorter than the others united. 1. O. strigicollis Lee, Tr. Am. Ent Soc. 1868, 171; NemopMlus stri- giUatus Chapuis, Mem. Soc. Roy. Sc. Liege, 1869, 27. Illinois and South Carolina; also in Texas, according to Chapuis. Length 3 mm.; .11 inch. HYLESINUS Fabr. This genus represents the first division of my memoir, above cited, and contains those species in which the funicle is composed of seven distinct LeConte.] HYLURGINI. 379 joints, which united are nearly or quite as long as the club. The tibiiB are finely serrate at and near the tip; the joints 1-3 of the tarsi are rather broad and equal, the third bilobed; the fifih about equal to the others united, and f.lavate, with simple, divergent claws. With one exception, the species are densely clothed with flat scales, and variegated in color with pale and dark gray tints. Body oval, clolhed with pale and dark scales, with- out intermixed hairs 2. Body elongate , 4. 2. Club of antennae elongate-fusiform, bands of elytra oblique 3. Club of antennsB oval, body stouter, bands of elytra transverse 3. fasciatus. 3. Sides of prothorax muricate before the middle 1 . imperialis. " " not muricate 2. aculeatus. 4. Clothed with scales, with rows of bristles on the elytra 4. sericeus. Clothed with short, erect yellow hair, without scales 5. opaeulus. Thinly and finely pubescent; prothorax muricate at the sides 6. aspericoUis. 1. H. imparialis Eichhoff, Berl. Ent. Zeitschr. 1868, 149 ; Lee, Tr. Am. Ent. Soc. 1868, 169 ; E. aculeatus % Chapuis, 1. c. 32. Dakota and Arizona. Resembles the next species, but is easily known by the muricate punctures of the sides of the prothorax ; the basal edge of the elytra is also more strongly serrate. There is no such difference in the depth or punctuation of the elytral striae as to warrant the differential phrases used by Dr. Chapuis. It is found also in Wisconsin and Georgia, ac- cording to EichhofF, and seems to me to be barely distinct from the follow- ing species. 2. H. aculeatus Say, Journ. Ac. Nat. Sc. Phil, iii, 333 ; ed. Lee, ii, 181 ; Zimm., Tr. Am. Ent. Sue. 1868, 149 ; H. piniinosm Eichhoff, Berl. Ent. Zeitschr. 1868, 149 ; Chapuis, Mem. Soc. Roy. Sc Liege, 1869, 33. Massachusetts to Texas, Kansas and Oregon ; depredates on Fraxinus. So far as the dis'inctions exist between this and the preceding, they are well exhibited in the descriptions of Eichhoff"; to whom, however, the de- scriptions of Say seem to have been unknown. It has happened unfor- tunately that Dr. Chapuis has applied Say's name to the less known form called imperialis by Eichhoft', and retaiq^ed pruinosus for the present well- known and widely diffused form. The Munich Catalogue has added to the confusion by citing Say's de- scription under the genus Dendrosinus (2673), and placing //. c/lobosus Eichhoff, as a synonym. The latter is probably a South American species, described by Eichhoff, with an incorrect localitj', since a variety of it is mentioned by Chapuis (p. 28) as occurring in Columbia. Length 3.2- 3.4mm.; .09-. 13 inch. In the (^ the head is more flattened than in the 9 ; and occasionally 380 SCOLYTID^. [LeConte. has a very narrow smooth lougitucjinal line. The specific name is badly- chosen, as it is only in partially abraded specimens tliat the muricate punc- tures of the interspaces of the elytra can be seen. 3. H. fasciatus Lee, Tr. Am. Ent. Soc. 1868, 170. One specimen, York county, Pa. A small species of stouter oval form, with the club of the antennte thicker, less elongate, and corneous and shining at the base. Length 1.5 mm. ; .06 inch. 4. H. sericeus Mann., Bull. Mosc. 1852, 385; Hylurgus ser. Mann., ibid, 1843, 296 ; ibid, 1852, 356. Var. H. neb'uloms Lee, Proc. Ac. Nat. Sc. Phil. 1859, 285. Alaska to California. Length 3 mm.; .12 inch. The outer interspaces of the elytra are marked with a row of small acute tubercles. The bristles of the elytra are longer in the type than in the variety, and the sides of the prothorax seem a little more rounded, but otherwise there is no special difference. The elytra are not banded as in the preceding species, but confusedly tesselated. I observe no sexual characters, and the front is finel}' carinate in the four specimens examined. The head is more prolonged than in the other species. The club of the antennne is subovate pointed, about twice as long as wide, annulated with straight sutures. 5. H. opaculus Lee, Tr. Am Ent. Soc. 1868, 170 ; Phlceosinu.s j;. liini- naris % Chapuis, Mem. Soc. Roy. Sc. Liege, 1869, 39. Middle States. This species has a deceptive resemblance to Phlmotribus frontalis, and it is only by examining the antennte that it may with cer- tainty be separated. The reference to the genus Phheosinus is incorrect, as the outer part of the tunicle is divided into six joints by five transverse sutures, precisely as in the other species of Ilylesinus. The club is sub- ovate, obtusely pointed, with straight sutures, and the basal part is more shining and less pubescent than usual. Length 2-2.5 mm. ; .08-10 inch. 6. H. aspericollis n. sp. Cylindrical, rather elongate, blackish-brown, thinly clothed with fine short pubescence. Head sparsely punctured, with a faint frontal impres- sion, and an indistinct smooth median line. Prothorax at base scarcely wider than long, slightly rounded on the sides, gradually narrowed in front, but not constricted, nearly truncate at base and apex, finely and densel}' punctured, sparsely but strongly asperate, with acute tubercles at the sides. Elytra with punctured strife, interspaces moderately convex, granulato-rugose, and muricate with acute small spines becoming more prominent on the declivity. Antennse ferruginous, with seven distinct joints in the funicle ; club oval-pointed, transversely annulated as usual ; front tibife rather suddenly dilated at the tip. Length 2.5-3.4 mm. ; .10- .13 inch. California, (at Santa Barbara?); Mi*. Crotch; several specimens, in which I observe no special sexual differences, except that in some the frontal impression is a little deeper. It is similar in form to //. opaculus but larger, with the pubescence much finer and inconspicuous. LeConte.] HYLURGIKI. 381 PHL^OSINUS Eichhoff. In this genus the funicle of the antennae is much shorter tlian tlie chib, the tirst joint is rounded, the remaining four joints are closely united and gradually become broader ; the club is large, oval, compressed, obtusely rounded, and lUvided by straight well-marked sutures. The front coxte are moderately distant. The tibiae are acutely serrate ; the tarsi have the joints 1-3 equ-il, the third bilobed ; the fifth is nearly equal to the others united. I liave erroneously mentioned the ftinicle of the antennai of these species as 6-jointed, in the memoir cited below. Pubescence fine, sparse, declivity of elytra with firsi and third interspaces more elevated, and more strongly tuberculate 1. serratus. Pubescence fine, sparse, declivity of elytra with third interspace elevated behind 2. cristatus. Pubescence fine, less sparse, declivity of elytra more finely tuberculate, or serrate, nearly equal in con- vexity 3. dentatus. Pubescence fine, less sparse, striae of elytra strongly punctured, secjnd interspace depressed on the de- clivity, the others serrate with acute tubercles, nearly equal in convexity 4. punctatus. 1. P. serratus Lee, Tr. Am. Ent. Soc. 1868, 170. New York, one specimen. This species is cited in the Munich Catalogue as undescribed. The diagnosis given on page 169 of my memoir, and the explanatory remarks under the next species contain all the information necessary to distinguish it from the common and well known P. dentatus. Any lengthy description would be unnecessary, as it only difters by larger size, and by the first and third interspaces being stronglj'' elevated and ser- rate behind. The pubescence is shorter, and seems less dense than in P. dentatus, but this may be produced by abrasion. Length 3.5 mm. ; .14 inch. The striae are distinctly punctured; the interspaces wide, densely and strongly granulate and rugose. The front is very slightly carinate. 2. P. cristatus Lee, Tr. Am. Ent. Soc. 1868, 170. California; cabinet of Mr. Ulke. I have no specimen of this species, and can only say that it differs from the preceding by the larger size (4 mm. ; .16 inch); and by the sutural interspace being less elevated than the third, though also serrate. 3. P. dentatus. Hylurgus dent. Say, Journ. Acad. Nat. Sc. Phil, v, 258; ed. Lee, ii, 319. Middle and Eastern States and Canada; depredates on Juniper us. Smaller than the two preceding, with the declivity of the elytra more abrupt and flattened, and less convex; the striae are impressed and scarcely punctured, the interspaces are wide, densely and strongly granulate and rugose; the rugosities becoming acute tubercles on the declivity of the alternate inter- spaces; second interspace not depressed on the declivity, and furnished 382 SCOLYTID^. [LeConte, with a row of smaller tubercles in some specimens, but not in others. This difference is probably sexual. The head is granulato -punctate, and the front is not carinate. 4. P. punetatus, n. sp. This species precisely resembles P. dentatus in form, size and sculpture, except that the striae of the elytra are wider, and strongly punctured; the interspaces narrower, less densely granulated and rugose, and the second interspace on the declivity is depressed, shining, sparsely punctured, and narrower than the adjacent interspaces. The front is finely but distinctly carinate. Length 3 mm.; .08 inch. Oregon and Lake Superior. P. Haagii Chapuis, Mem. See. Roy. Sc. Liege, 1869, 38; Dendroctoims Haagii Eichhoff, Berl. Ent. Zeitschr. 1868, 148, may be synonymous with this species, but I do not observe in the four specimens in my collection any trace of the smooth dorsal line extending from the base beyond the middle, as mentioned in Chapuis' description. Neither is the locality given, " Amer. bor.," of much service in identifying the species in a genus where the forms are so closely similar. P. graniger Chapuis, 1. c. 39, I am also unwilling to attach as a synonym to any of the species above described; being from Texas it is quite liltely to be different. The descriptions of both these species will be found in the appendix. CH^TOPHLCEUS n. g. Tliis genus is founded upon Jli/lesinus hystrix, a singular species from California, of robust oval form, thickly clothed with coarse, erect hair. It differs from Phlaiosinus by the four joints which constitute the outer part of the funicle of the antennae being slender, and increasing much less rap- idly in thickness; the club is equally large, subovate, compressed, obtusely rounded at tip, and the sutures are also straight. The mouth is clothed with long, coarse hair. The prosternum is very short in front of the coxae, which are very narrowly separated. The first ventral segment is longer than the second, and the third, fourth and fifth are short. The tibiae are broadly di- lated, rounded and finely serrate at tip; the tarsi are not plainly visible in the unique specimen in my collection, but the third joint is emarginate, rather than bilobed. 1. O. hystrix Lee, Pr. Ac. Nat. Sc. Phil. 1858, 81; Tr. Am. Ent. Soc. 1868, 171 {Ilylesinus). San Diego, one specimen. The head is broadly concave, with a smooth medial line. The prothorax is strongly and densely punctured. The elytral striae are not impressed, and are composed of approximate punctures; the interspaces are flat, punctured; the declivity is rounded, the part near the suture is deeply and broadly concave, and the outer side of the concavity, corresponding to about the fourth interspace, is armed with four or five tu- bercles; the sutural interspace on the declivity is narrow, slightly elevated, and marked with a row of very small granules. Length 2.2 mm. ; .09 inch. LeConte.] HYLURGINI. 383 OARPHOBORUS Eichhoflf. This geaus contains species of small size and elongate form; dull, densely punctured surface, clothed with very small yellowish scales. The elytra are striate with large, approximate punctures; the second interspace is nar- rowed and abbreviated on the declivity, and the third is elevated into a high, spinulose crest, whicli unites with the apical margin; this margin is similarly thickened and elevated, though to a less extent. The funicle of the antennae is 5-jointed; first joint larger and rounded, the others closely united, forming a short, conical mass, as in Phlceosinus; club lai-ge, slightly pubescent, moderately compres ed; rounded, obtuse at tip, and divided by two straight sutures; the first joint of the club is more shining than the others. Prosternum very short in front of the coxae, which are large, prom- inent and contiguous. The tibiaj are moderately dilated, the front ones have two acute teeth near the tip, on the outer side, and a long, terminal hook at the inner angle; the other tibiae are obliquely rounded at tip and finely serrate; the first joint of the tarsi is shorter than the second; the third is equal to the second, not bilobed; the fifth is as long as the others united. The mouth is clothed with long, coarse hair as in Chwtophlceus. First and third interspaces of the elytra elevated on the declivity and serrate 2. First and third interspaces scarcely elevated, not ser- rate 1 . simplex. 3. First and third moderately elevated; second not much narrowed on the declivity 2. bifurcus. First and third strongly elevated; second much nar- rower on the declivity 3. bicristatus. 1. C. simplex n. sp. Elongate-cylindrical, blackish-brown, somewhat shining. Head finely and densely granulato-punctate in front, nearly smooth behind. Prothorax twice as wide as long, broadly rounded on the sides, narrowed and feebly constricted in front, which is nearly truncate ; base slightly bisinuate ; finely punctured, with a faint indication of a smooth dorsal line ; scarcely perceptibly pubescent. Elytra with striae of quadrate punctures, inter- spaces finely roughened, thinly clothed with very small scales, second in- terspace depressed and narrowed on the declivity, first and third slightly elevated, not serrate. Length 2.3 mm.; .085 inch. J^, Head with a round excavation fringed with long yellow hairs. 9. Head slightly impressed, not hairy. Mojave Desert, California; Mr. Crotch. The fifth joint of the funicle is broader and almost part of the club ; the third joint of the tarsi is not wider than the second, just as in the other species. 2. O. bifurcus Eichhoff, Berl. Ent. Zeitschr. 1868, 147; Dendroctonus hif. Zimm., Tr. Am. Ent. Soc. 1868, 148; Chapuis, Mem. Soc. Roy. Sc. Liege, 1869, 97. (^ . Front with two small approximate tubercles. $ . Front uniformly convex. 3S4 SCOLYTID^. [LeConte. District of Columbia; Ulke. This species differs from the next by the third interspace of the elytra being less elevated on the declivity, and the second less evidently narrowed. The punctures of the elytral striis are also larger. A greater number of specimens will probably show that these differences are not of specific value. Length 1.5 mm. ; .06 inch. 3. O. bicristatus Chapuis, loo. cit. 97. Georgia, two females ; under pine bark. Length 1.8 mm.; .07 inch. DENDROCTONUS Er. The body is stout cylindrical, narrowed in front, punctured and hairy ; the funicle is 5-jointcd, the first joint rounded, but not large ; the other joints gradually increasing in breadth ; club rounded, strongly compressed, scarcely pubescent, divided by three transverse straight sutures. Pro- thorax sliglitly emarginate in front, bisinuate at base. Pros'.ernura not very short in front of the coxae, broadly concave, with traces of a I'idge each side, as in Phlceos'mui and Blastophagus; front coxte contiguous. Tibi* moderately dilated, with a few large lateral and apical teeth; terminal spine stout and straight ; tarsi with joints 1-3 slightly decreasing in length; third wider, deeply bilobed, fourth small, distinct; fifth as long as the others united. Ventral segments nearly equal in length ; the first suture is straight, the others strongly curved backwards at the side. The species depredate upon pine trees, and are closely allied and diflScult to distinguish ; the dorsal line of the prothorax varies in individuals of the same species; I cannot change the table I have given in the memoir cited below except by adding one new species. Prothorax narrowed in front, slightly bisinuate at base 2. " very slightly narrowed in front, strongly bisinuate at base ; head large ... 7. frontalis. 2. Interspaces rough both on the disc and on the de- clivitj' 3. Interspaces rough towards the base, but only punc- tured on the declivity 4. 3. Prothorax very densely coarsely punctured ; hairs of elytra not very long 1. terebrans. Prothorax less densely punctured ; hairs of elytra long 2. similis. 4. Prothorax punctured with smaller punctures inter- mixed, hairs of elytra long 3. ruflpennis. Prothorax equably punctured, occiput finely punc- tured, hairs of elytra long 4. punctatus. Prothorax equably punctured, occiput sparsely punc- tured, hairs of elytra long ; smaller, witli broader prothorax 5. simplex. Prothorax finely sparsely punctured ; elytra opaque, densely, finely granulated and punctulate, pubes- cence very short 6. brevicomis. LeConte.] IIYI.UKGINI. 385 1. D. terebrans Lac. , Gen. Col. vii, 361 ; Ziiiim., Tr. Am. Ent. Soc. 1868, 149 ; Scolytus ter. Oliv., Ent. 78, p. 6 ; pi. 1. f. 6; D. valem Lee, Pacific II. R. Expl. and Surveys, Ins. 59 ; Chapuis, Mem., Soc. Roy. Liege, 1869, 91. Canada, Georgia, Oregon, California. The specimens from the Pacific slope are larger, and the punctures of the prothorax are rather smaller and more dense, but these differences do not seem to me worthy of specific distinction. Some specimens from New Hampshire and Canada have the prothorax more sparsely punctured, almost as in the next species, from which they are only distinguished by the shorter hairs of the elytra. Length 5.2-8 mm ; .2-32 inch. 2. D. similis Lee, Pac. R. R. Expl. and Surveys, Ins. 59. Oregon ; five specimens. I have incorrectly cited this species as a syn- onym of D. obesus, from which it differs in having the aspeiities of the elytra continue on the declivity. The tibias are armed, as in the preceding, with three acute teeth on the outer side near the tip, but the prothorax is less densely punctured, and the elytral hairs are longer ; the back part of the head is less densely punctured. Length 4.5-6.5 mm.; .18-. 25 inch. A smaller and somewhat more elongate form occurs in Canada, Texas and Colorado, but I do not think it capable of being separated as a distinct species. Length 4.2 mm.; .165 inch. 3. D. ruflpennis Kirby, Fauna Bor. Am. iv, 195, {Hylurgus); Mann., Bull. Mosc. 1853, 238 ; Hylurgus obesus Mann., ibid. 1843, 296; ibid. 1852, 356. Alaska, Canada, Anticosti. I can perceive no difference between the specimens sent me under the names cited above. It is only to be distin- guished from the preceding by the declivity of the elytra smoother and more shining, and almost without asperities ; and by a slight difference in the punctures of the prothorax, which are of unequal size. The dorsal line of the prothorax is sometimes narrow and elevated, sometimes obsolete. Length 6 mm. ; .24 inch. 4. D. punctatus Lee, Tr. Am. Ent. Soc. 1868, 193. New York ; three specimens. Very similar to the preceding, but the back part of the head is nearly smooth, or feebly punctulate ; the punctures of the prothorax are larger and less dense, and the declivity of the elytra less shining, and very slightly asperate. Length 6 mm. ; .25 inch. 5. D. simplex Lee, Tr. Am. Ent. Soe 1868, 173. Canada ; two specimens. Much smaller, with the prothorax compara- tively wider and shorter, and more densely punctured. The elytra are more shining, and more strongly and sparsely punctured on the declivity; the head is sparsely but deeply punctured behind, and in front is densely granulate as usual. Length 4 mm. ; .16 inch. If I have failed to indicate more strongly the differences between these species, it is because thej^ are not distinguished by any prominent or definite characters ; and the student, who may have difficulty in identi- PROC. AMER. PHILOS. SOC. XV. 96. 2w 386 SCOLYTID^. [LeConte. fying the species as here defined, would have almost equal difficulty, if the specimens in my collection were before him. 6. D. brevicomis, n. sp. Elongate-cylindrical, red-brown, with a few long hairs on the prothorax, and numerous very short ones on the elytra. Head large, finely not densely granulate, rugose, occiput nearly smooth, face with an interrupted longi- tudinal impression, antennae with circular compressed club, sutures trans- vei'se, funicle 5-jointed. Prothorax at base nearly twice as wide as long, as strongly bisinuate as in D. frontalis; very slightly narrowed towards the tip, and slightly constricted ; punctures small, not dense, surface shining, with no trace of a dorsal line. Elytra opaque, strife indistinct, composed of not very evident punctures ; surface finely densely granulate, becoming punctulate on the declivity ; in other respects it resembles the other species of the genus. Length 4.3 mm.; .17 inch. One specimen ; Middle California. Intermediate in form of prothorax between the next and the foregoing species, but strikingly different from both by the sculpture and pubescence of the elytra. 7. D. frontalis Zimm., Tr. Am. Ent. Soc. 1868, 149 ; (synon. excl). Lake Superior to Georgia. The head is channeled and marked with approximate frontal tubercles ; the occiput is finely punctulate, the front roughly punctured as usual. The interspaces of the declivity of the elytra are finely asperate, and the hairs are short. The prothorax is scarcely narrowed in front, and the base is more strongly bisinuate than in the other species. The club of the antennae is round, strongly compressed and con- cave on one side, as in the other species; and the sutures are not straight, but curved. Length 3 mm. ; .12 inch. The frontal channel is deeper, and tlie granulate punctures larger, and denser in one sex than in the other. Dr. Zimmermann cites as a synonym Bostrichus frontalis Fabr., Syst. El. ii, 389 ; the description appears to me not to correspond, and I have cited it above as pertaining to Phl(votribus frontalis, (p. 377). BLASTOPHAaUS Eichhofl:'. This genus does not properly belong to our fauna, and I mention it only for the purpose of correcting the error, which I committed of describing an accidentally introduced specimen of the common European B. piniperda under the name Hylurgiis analogus, Tr. Am. Ent. Soc. 1868, 172. The last mentioned name must therefore be erased from our list. I also com- pared it with the European //. lignlperda on theauthority of an incorrectly named specimen which I borrowed for comparison. If the genus should hereafter occur in our fauna, it can be easily recognized by the outer part of the funicle of the antennae being divided into 5 joints, thus making the funicle 6-jointed, and by the club being ovate-pointed, not compressed, transversely annulated, with the joints smooth and shining, fringed with hairs. The beak is somewhat more distinctly developed than in Dendroc- tonus, and the antennal grooves are wider and deeper. LeConte.] HYLURGINI. 387 Group IV. €ryptHr$(i. This group consists of two genera, represented by very small species of elongate form, which agree with Ifglastes in general appearance and sculp- ture, but differ by the beak being much shorter, and the prosternum very short and not excavated. The genus Crypturgus has been usually associated with the Tomicini, on account of the slender tarsi, but it makes a notable exception to the other members of that tribe by the large exserted head, and the absence of the hood-like prolongation of the pro'.horax. I have, therefore, thought it best to remove it from that position, and place it with Bolurgus, as a separate group. Though differing in the antennal club, wiiich is solid in Grypturgus, and annulated transversely with the first joint corneous in Dolurgus, these two genera are otherwise closely related, and differ remarkably from neighboring forms by the small number of joints in the funicle. The prothorax is elongate-oval, rounded in front, nearly truncate at base; the scutellum is very small, not depressed, and the basal edge of the elytra is not elevated. The elytra are elongate-cylindri- cal, with the posterior di^clivity convex; the striae are well marked, and strongly punctured; the interspaces narrow, finely punctulale and slightly pubescent. The ventral sutures are straight and deep; the first and fifth segments are longer than the others. The prosternum is very short, not excavated; the front coxae are contiguous; the tibiae are dilated, and finely serrate; the terminal spur is very small; the tarsi are slender, with the third joint not dilated. Antennal club solid; funicle 2-jointed ORYPTURGUS. " annulated; funicle 3-jointed DOLURGUS. ORYPTURGUS Er. 1. O. atomus Lee, Tr. Am. Ent. Soc. 1868, 153. Canada, Massachusetts, New York; under bark of dead pine branches. Length 1 mm. ; .04 inch. DOLURGUS Eichhoff. 1 D. pumilus Eichh., Berl. Ent. Zeitschr. 1868, 147; Chapuis, Mem. Soc Roy. Sc. Liege, 1869, 80; Hylastes pumilm Mann., Bull. Mosc. 1843, 297; ibid. 1852, 356; AphanarthrumXpum,. Lee, Tr. Am. Ent. Soc. 1868, 152. Alaska. Examination of specimens of Aplianarthrum subsequently ob- tained, shows that my reference of this species to that Madeiran genus was incorrect; there is no resemblance betsveen them, except in the form and number of joints of the antenna3. Eichhoff describes the funicle as 4-jointed, but the error is corrected by Chapuis. Length 1.8 mm. ; .07 inch. Group V. Hylastes. In this grou]) a reversion is made tow^ards Cossonida and some tribes of Gurculionido}, in the antennal funicle and club, the excavated prosternum, and the antennal grooves of the beak, which, though short and stout, is more developed than in any other Scolytidce. The tibiae are, however, 388 SCOLTTID^. [LeConte. more strongly serrate, and are armed with a strong apical spur ; the tarsi are rather short, and the third joint is more or less dilated, hilobed or emarginate. The ventral sutures are straight and deep ; first and fifth segments longer than the others. The head isexserted and prominent, the beak short and stout, with oblique deep grooves, which unite in the gular space, forming a transverse impression ; the eyes are transverse, not verj^ finely granulated. Antennae with 7-jointed funicle and oval annulated club, which is not compressed, and has the basal joint large, corneous and shining, very much as in Baris. The scutellum is small, not depressed, and the basal margin of the elytrji is not acutely elevated, though quite distinct in II. (jranulaim and finifex. Three genera are indicated by our species: Front coxfB contiguous, or nearly so 2. " " widely separated SCIERUS. Third joint of tarsi emarginate HYLASTES. " bilobed HYLURGOPS. HYLASTES Er. I have but two species to add to those mentioned in my synopsis, which may be thus tabulated ; all have the third joint of tarsi emarginate, not dilated ; mesosternum truncate, not protuberant ; tibise with very large teeth ; prosternal ridges acute ; basal margin of elytra not acute. Beak carinated 2. Beak not carinated ; small, slender, dark brown, elytra coarsely punctured in rows, with rows of short suberect hairs 8- 3. Glabrous or subglabrous species 3. More or less hairy Y. 3. Elytral interspaces not canvex, punctured and less rugose ; form more slender, prothorax more densely punctured 4. Elytral interspaces convex, rough and rugose 6. 4. Longer and narrower than nigrinus and more finely sculptured on the head and prothorax 5. Somewhat less slender, more coarsely sculptured 3. nigrinus. 5. Protliorax nearly elliptical, more coarsely punctured 1. macer. Prothorax gradually narrowed in front, less coarsely punctured 2. longus. 6. Elytra rougher, and muricate behind towards the sides 4. porculus. Rugosities finer, sides of elytra not muricate 5. cavernosus. 7. Pubescence fine and short ; prothorax equably punc- tured 6. gracilis. Hairs long and sparse ; prothorax coarsely punctured, with smaller punctures intermixed 7. porosus. 8. Interspaces of elytra opaque, rough with small granules 8. tenuis. Interspaces of elytra somewhat shining, rugose. 9. exilis. LeConte.l HYLURGINI. 389 2. H. longus, n. sp. Slender, cylindrical, black, nearly glabrous. Head densely punctured, beak finely carinate, front with a transverse impression. Prothorax longer than wide, base and hind angles rounded, sides sliglitly rounded, converg- ing graduall}' to the tip, which is broadly rounded; punctures deep and strong, larger at the base than at the tip and sides, where the^^ are also more dense; no smooth dorsal line is visible. Elytra less shining than the prothorax, with striai composed of moderate sized, punctures; interspaces nearly fiat, wider than the striip, densely, finely punctured. Club of an- tennae brown, first joint composing about one-half of the mass. Length 4.5 mm.; .175 inch. Colorado, Prof. F. H. Snow; one specimen. This species resembles closely H. macer, but can be easil}^ recognized by the different form of the pro- thorax. The following synonyms will complete the bibliography I have already given in my synopsis. 4. H. porculus Er. "Wiegm. Archiv. 1831), i, 49 ; U. carbowirius Fitch, Noxious Ins. New York, 4th report, No. 249 ; //. granosus Chapuis, Mem. Soc. Roy. Sc. Liege, 1869, 73 ; //. scabripennis Zimm., Tr. Am. Ent. Soc. 1868, 149; ? H. salebrosus Eichhoft, Berl. Ent. Zeitschr. 1868, 146. 5. H. cavernosus Zimm., 1. c. 149 ; ? H. scobinosu^ EichhofT, Berl. Ent. Zeitschr. 1868, 146 ; Chapuis, 1. c. 73. EichhofT gives Carolina as the locality ; Chapuis mentions Norfolk Sound, which, being on the Pacific coast; makes the reference doubtful. Perhaps the specimen came from Norfolk, Virginia, instead of Norfolk Sound. Should they prove to be the same, the name proposed by Eichhofi" has prioi'ity by a few weeks. 9. H. exilis Chapuis, 1. c. 20. Florida, one specimen, Messrs. Hubbard and Schwarz. Nearly related to //. tenuis, but the prothorax is more coarsely punctured, and the inter- spaces of the elytra are not granulate, but rugosely punctured, and less opaque. Length 2.5 mm. ; .10 inch. HYLURGOPS n. g. I have separated as a distinct genus the species referred to Erichson's sec )nd division, having the third tarsal joint broader and bilobed, and the mesosternum protuberant. They are-, quite different in form from true Hi/lastes, and resemble DjiidroctowK, the prothorax: b?ing m )re narrowed forwards, and more finely and denscdy punctured. The basal margin of the elytra is so acutely defined in II. granulatwi and pinifex that I should place them near Hylurgus, but for the scutellum, which is not depressed ; and for the deeper antennal grooves, which remove them from the group of Ilyluffii. The front tibiae are less coarsely serrate than in Ilylastes. The species may be thus distinguished : Prosternal ridges acute ; front transversely impressed. 2. 390 SCOLYTID^. [LeConte. Prosternal ridges indistinct ; beak carinate, front not impressed ; color brown, elytra variegated with spots of pale scales, basal margin acute, subserrate 1. granulatus. 3. Beak carinate ; basal margin of elytra subacute, subserrate 2. pinifex. Beak not carinate ; basal margin of elytra subacute, subserrate 3. rugipennis. Beak not carinate ; basal margin of elytra acute, serrate ; alternate interspaces more elevated be- hind 4. subcostulatus. 1. H. granulatus Lee, Tr. Am. Ent. Soc. 1868, 175 (Hylastes). Oregon and California. The variegated spots of the elytra are formed of small pale scales, and were not apparent in the two specimens upon which my description was based. Length 5 mm.; .20 inch. 2. H. pinifex Fitch, Noxious Ins. New York, 4th report, 43, No. 24g ; {Uylaxtes); Lee, Tr. Am. Ent. Soc. 1868, 176. Lake Superior, Canada, Ohio. Length 5 mm.; .20 inch. 3. H. rugipennis Mann., Bull. Mosc. 1843, 297 {Hylurgus); ibid, 1853. 238 (Hylastes); Lee, loc. cit. 176 ; Chapuis, 1. c. 76. Alaska, Oregon and California. Length 4-4.5 mm.; .16-.18 inch. 4. H. subcostulatus Mann., Bull. Mosc. 1853, 239. Oregon and Sierra Nevada ; described by Mannerheim from Alaska. Length 4 mm. ; .16 inch. Ilylastes ruflpes Eichhoff, Berl. Ent. Zeitschr. 1868, 147; Chapuis, 1. c. 79, probably belongs to this genus, but is unknown to me. Hylastes cristatus Mann. , Bull. Mosc. 1853, 239, from Alaska, may also belong here, but is unknown to me. SCIERUS n. g. I have separated under this generic name a species which agrees in gen- eral form with Hyliirgops, but differs from it and Hylastes by the front coxse being widely separated by the prosternum. The form of the third joint of the tarsi is intermediate, it being not as deeply bilobed as in Hylur- gops, but broader than in Ilylasten. It agrees with both in the antennfse, vvliich have the funicle 7 jointed, and the club ovate-pointed, with the first joint smooth, shining, and nearly as long as the others united. The tibia} are dilated and broadly serrate as in Ilylmtes; the terminal mucro is short. Tlie first and second ventral segments are equal, and Ihe third and fourth are shorter; the fifth is as long as the second. The other characters are those of the tribe, and it is not necessary to repeat them. 1. S. annectens, n. sp. Oblong cylindrical, dark brjwn, opaiue, thinly clothed with very short depressed yellow hairs. Beak flat, punctured and hairy, about twice LeConte.] ANTHRIBIU^. 391 as wide as long, not impressed or carinate; head convex, punctures becom- ing finer and obsolete on the occiput. Prothorax one-third wider than long, rounded on the sides, narrowed in fronS faintly impressed but not con- stricl^ed on the sides, nearly truncate in front and at base; densely and strongly punctured with a narrow dorsal line, \vhich is obsolete in some s;3ecimens. Scutellum rounded behind, not depressed. Elytra wider tlian the protliorax; basal margin rather acute, finely serrate; striae deeply im- pressed, punctured; interspaces wider than the stria3, scabrous with trans- verse rugosities, becoming asperate on tlie sides towards the tip; the interspaces become more convex on the declivity, and the third and ninth unite near the tip, and then join the first so that the second is a little shortened. Beneath coarsely and sparsely punctured and pubescent, and less opaque; legs lighter brown. Length 3.6 mm. ; .14 inch. Anticosti Island, Gulf of St. Lawrence, W. Couper; British Colum- bia and Vancouver Island, G. R. Crotch. No sexual difference observed. Family X. ANTHRIBID^. Mentum large, deeply emarginate in front, closely connate, (except in the group Hormisci,) with the gular peduncle, which is broad and short; buccal fissures consequently narrow, only partially exposing the base of the maxilhc; ligula large, corneous, narrowly emarginate at tip; palpi 3 jointed, inserted at the sides of the lower face of the ligula, distant, slender, cylin- drical, longer than in other Rhynchophora and flexible, as in normal Cole- optera and in Bhinomacendce; last joint elongated, narrower at the tip. Maxilte visible in the narrow buccal fissures, with two narrow lobes, usually rounded and ciliate at tip; palpi slender, 4 jointed, with the last joint longer and narrower at the tip. Mandibles flattened on the upper surface, curved, pointed or emarginate at tip. Antennae inserted usually under the sides of the front, rarely upon the front. They are 11-jointed, slender and not geniculate; the first joint is stouter, but scarcely longer than tlie second; joints 3-8 slender, pubes- cent; 9-11 broader, more or less compressed, finely pubescent and sensitive. The antennae of the (^ are sometimes mucli longer than the body. The outer joints form a compact oval club in Hormiscus. Head prominent, not deflexed; beak broad, flat, sometimes so short as to be indistinct; never cylindrical or sle^nder, and never separated from the front by a transverse impression. Eyes moderate in size, not very finely granulated, rounded, sometimes slightly emarginate in front. Labrum dis- tinct, quadrate, fringed with liairs- Gular suture completely obliterated. Prothorax of varied form, usually trapezoidal and truncate in front; rarely somewhat rounded over the head iChoragus); base truncate, with a trans- verse, elevated line which is either aiatebasal (Tropiderini) or entirely basal; this line is abruptly bent forwards at the sides, and forms a more or less abbreviated side margin. 392 ANTHRIBID^. LLeConte. The prosternal sutures are entirely obliterated, as is also the short suture behind the posterior point of the prostei'num.so that the under surface con- sists of but one piece. The coxal cavities are rounded, and narrowly sep- arated. Mesosternum flat, triangular behind, with the point rounded, and sepa- rating the middle coxa?; cavities rounded, epiiuera transverse, oblique, not attaining the coxae. Metasternum long, side pieces narrow, or moderate in width, wider in front, with the outer angle prolonged forwards; in many genera there is a transverse impression in front, simulating a suture. Elytra conjointly rounded behind, and forming a small sutural fold, which fits into a deep emargination of the pygidium ; fold of the inner sur- face acute, not prolonged much behind tlie middle. Epipleun^ distinct. Tlie stripe are ten in number, witli a short scutellar one as in Carabidce; this scutellar stria is usually about one-fourth the length of the elytra, and does not connect itself with the sutural stria. Abdomen with five free, and sometimes nearl}' equal ventral segments; sutures straight; intercoxal process triangular, acute or rounded in front; dorsal segment membranous, except the pygidium, which is corneous, de- clivous and exposed ; no anal segment in the t^. Anterior coxae narrowlj' separated, globose; middle coxae moderately sep- arated, rounded; hind coxae transversa, not prominent, never very widely separated. Legs slender, front pair sometimes elongated in rj^; tibia; truncate at tip, without spurs or hooks. Tarsi ])rush like beneath, 4-jointed; second joint triangular, emarginate; third joint bilobed, sometimes large, sometimes small; fourth joint slender with divergent claws, wliich are either simple or toothed. Our genera I'epresent four tribes: Antennae inserted at the sides of the beak; Prothoracic ridge not basal. TRUPlDERlxi. Prothoracic ridge basal banitkoi>ixi. Antennae Inserted on the front; prothoracic ridge basal ; Elytra striate as usual ak.kocerixi. Elytra not striate xe.\or€HEST1XI. Tribe I. tropiderini. The genera of this tribe are sufficientl}^ distinguished by the position and form of the prothoracic ridge, which is remote from the base, more or less sinuous, and flexed obliquelj' at the sides. The antennae are situated under the lateral edge of the beak, which is sometimes flattened and expanded so that the antennal cavi'.ies are partially covered. Three groups occur in our fauna: Eyes entire, su'ure of mentum oblitera*ed 2, " emarginate; suture of mentum distinct Ilorsnlsci. LeConte.J TROPIDERINI. 393 3. Sides of beak not dilated; antennae very long ischnoe«ri. " " dilated over the autennal cavities Tropideres. Group I. isclinocerl. Beak longer than the head, dilated at tip; antennal cavities large, lateral, limited above by a small, elevated line, which descends to the inferior mar- gin of the eyes. Eyes longitudinal, elliptical, rather coarsely granulated. AntenniE very slender, longer than the body in J^; two-thirds as long in $ ; first joint very short; second twice as long as first, and more than one- half as long as third; 9-11 broader, forming a compressed, loose, oval club. Tarsi with the first joint long; second triangular, emarginate, with pro- longed angles; third as wide as the second, bilobed; claws armed with a long, acute tooth at the middle. ISCHNOOERUS Schdnh. 1. I. infuscatus Fahraeus, Sch. Cure, v, 192; Meconemus tuiercidatus Imhoff and Labram, Gen. Cure. 1, 40. Mexico, extending into the Southern States as far as South Carolina. In the Mexican specimens the pubescence is som?what paler and more •dense; it is Isclinocerihs macrocerus of Dejean's Catalogue. This is a narrow species, with the base of the prothorax truncate; there is a trace of a second transverse raised line between the base and the ante- basal ridge ; the latter is situated about one-fifth from the base, slightly sinuate, and forming an obtuse angle at the middle; flexed obliquely for- wards on the side, where a distinct lateral angle is formed behind the middle. The pubescence is yellowisli brown, mixed with pale gray, and does not exhibit any distinct pattern. Length 6.8-10 mm. ; .27-.40 inch. Group. II. Troplderes. The sides of the beak in the insects of tliis group are dilated over the an'ennal cavities, which are therefore not visible from above. The form of the antebasal ridge differs in each genus, and in conjunction with the antennal club and tarsal claws affords easy characters for distinguishing the genera. The eyes are entire, either rounded or oblique. Antennal club narrow, not compressed . 2. " " oval, compressed 3. 2. Pro'horacic ridge strongly angulated and touching the base at the middle ; claws ?.\m\i[e GONOTROPIS. Prothoracic ridge straight at the middle, base deeph' biemarginate ; claws acutely toothed EURYMYCTER. 3. Eyes oblique, slightly oval, beak short TROPIDERES. Ej'es rounded, beak longer, antennae (^ very long.. ALLANDRUS. GONOTROPIS n. g. Body rather robust and convex. Beak longer than the head, gradually nari'owed to the middle, then widened to the tip, which is truncate with PROC. AMER. PHILOS. SOC. XV. 96. 2x 394 ANTHRIBII).^. [LeConte. a very small emargination at the middle ; upper surface slightly uneven. Eyes situated well up on the head, separated by a space not greater than diameter of each, rounded, moderately convex, finely granulated. Anten- nal cavities deep, small, near the tip of the beak, visible only from the side or from beneath. AntenniE half as long as the body; first joint s'outly clavate, second joint shorter, 3-8 each equal in length to the first, but more slender ; ninth a little longer, gradually thicker externally, tenth trans- verse, eleventh oval-pointed, the three forming an elongate but not com- pressed club. Mentum with the lobes broadly rounded at tip. Prothorax narrowed from near the base forwards ; ante-basal ridge strongly curved each side, with the concavity directed backwards, so as to form an angle at the middle, nearly touching the base, which is truncate ; near the sides this ridge is flexed obliquely forwards, then on the sides it is bent forwards, and runs somewhat obliquely as far as the middle ; the prothorax is deeply channeled behind the middle, and this channel is crossed at its anterior end by a short transverse impression. Elytra wider than the base of the prothorax, base straight for two-thirds of its width, then obliquely back- wards leaving a scutellar excavation. Scutellum small, elevated, with a deep fovea behind. Disc of the elytra with a large elevation near the base of the third interspace, which is also uneven behind ; the fifth and seventh are slightly uneven behind the middle. The first joint of the tarsi is longer, second triangular, emarginate, third a little narrower, bllobed; claws simple, divergent. 1. G. gibbosus, n. sp. Subovate, convex, black, without lustre, beak, and sides of head below the eyes, densely clothed with fine white pubescence. Prothorax deeply chan- neled from before the middle to the base, and with a short deep transverse line at the middle ; the edges of the cruciform impression thus produced are clothed Avlth white pubescence ; broadly concave near the sides ad- jacent to the transverse ridge. Scutellum white-pubescent. Elytra with fine punctured striae and very densely finely punctured Interspaces ; a large saddle shaped spot of white pubescence extends from the middle forwards becoming narrowed to the space between the third interspaces near the base, which it attains ; there are also some smaller white and black pubes- cent spaces behind the middle. Beneath pruinose with fine whitish pubes- cence. Length 5 ram. ; .20 inch. One specimen, Colorado. EURYMYCTER n. g. The well-known species upon which this genus is established, represents in our fauna the European Platyrhinun, but dlff'ers by the beak being narrower than the head and strongly dilated at the tip ; It is uneven above, with three wide grooves and two ridges, extending as far as between the antennas, where they end, leaving the dilated part of the beak flat ; the sides are extended over the antennal cavities, which are small and visible only from the sides and beneath. The mandibles are flat, acute, and LeConte.] TROPIDERINI. 895 toothed on the inner side ; eyes rounded, finely granulated. The antennae are half as long as the body; first and second joints a little stouter, and nearly equal ; 3-8 longer, shining ; ninth of the same length, gradually thicker externally and sensitive ; tenth about one-third shorter, oval, longer than v^^ide, sensitive; eleventh elongate-ovate, pointed, as long as the ninth and sensitive ; these joints are not compressed, and form an elongate loose club. Mentum with the lobes narrowly rounded, and sub- acute. Prothorax very uneven with large approximate fovea; ; broadly transversely impressed before the middle ; antebasal ridge nearly straight, about one-fifth from the base, which is strongly biemarginate for the re- ception of the bases of the elytra ; at the sides, the ridge is bent at an obtuse angle, and descends obliquel}% forming an obtuse lateral protuber- ance about the middle ; in front of this the prothorax is gradually ob- liquely narrowed. The elytra are wider than the prothorax, uneven with short transverse rugosities and elevations; striie composed of large distant punctures ; base separately rounded and finely margined, not excavated near the scutellum, but obtusely elevated from the first to the fifth stria. The alternate interspaces are wider and more convex. The first joint of the tarsi is long, the second triangular and eraarginate ; third not narrower than second, bilobed ; claws toothed at the middle. First and fifth ventral segments longer than the others. 1. E. fasciatus ; Ifacrocephalus fasc. Oliv., Ins. iv, 80, 9 ; pi. i, f, 9 ; Anthribus fuse. Kirby, Fauna Bor. Am. iv, 206. Northern States, Canada, Vancouver's Island. A large species con- spicuous by the beak and a broad transverse band behind the middle of the elytra being clothed with snow-white hair. Length 6.5-9.5 mm-; .25-.37 inch. TROPIDERES Schonh. 1. T. bimaculatus Lee, Proc. Ac. Nat. Sc. Phila. vii, 218; Macroceph- alus bim. Oliv., iv, 80, 14; pi. 2, f. 19; Anthribus quadrinotatus Say, Journ. Ac. Nat. Sc. Phila. v, 249; ed. Lee, ii, 314. New York, Wisconsin. A small, rather slender species, easily known by the white humeral spot and transverse subsutural spot behind the mid- dle; the beak is broad, not longer than the head; the prothorax is feebly and obtusely tuberculate at the sides. The e^^es are more widely separated, and more oblique than in the two preceding genera, The antebasal ridge is obtusely angulate at the middle with the angle directed forwards, and obtusely flexed on the sides. Length 4.7 mm.; .18 inch. Gremminger and Harold have incorrectly referred A. cornutus Say to this genus; it will be found below under Anthribus. 2. T. rectus, n. sp. Oval-cylindrical, dark brown, with spots of j'ellow pubescence, and upon the elytra also a few white dots. Head and prothorax opaque, very densely and rather finely punctured; antebasal ridge nearly straight and parallel with the base, suddenly flexed at the sides, and extending nearly to the 396 ANTHKIBID^. [LeConte. middle; the angle near the base at the flexure appears almost rectangular; sides obliquely and broadly rounded. Elj^tra with striae of large punctures, interspaces even, alternately variegated with distant, small white dots; a spot of yellow and white hair covers the base of the 4-7 interspaces. Be- neath thinly clothed with fine gray hair; legs mottled with gray hair; an- tennte testaceous with dusky club, slender, extending to the base of the prothorax. Length 4 mm. ; . 15 inch. Enterprise, Florida, two specimens; Mr. E. A. Schwarz. Quite different in appearance from the preceding, though presenting no special structural peculiarities. ALLANDRUS Lee. I have established this genus upon a small Canadian species remarkable by the sexual differences The form is as slender as in Tropideres; the beak is longer than the head, narrower at the base, slightly dilated at the tip; in the male it is furnished with a very high crest, gradually fading out in front; in the $ only an obsolete carina is seen. The antennae in the 9 ex- tend to the base of the elytra, and are just as in Tropideres, except that the second joint is thinner; joints 9-11 form an oval, compressed club. In the (^ the antennae are as long as tlie body; joints 3-8 elongated, and a little thickened at tip ; 9-11 flattened, forming a loose club. The prothorax as in Tropideres, but not tuberculate at the sides; transverse ridge remote from the base, feebly curved, and subsinuate; flexed obliquely forward at the sides. Eyes rounded, lateral, prominent, finely granulated. Tarsi more slender than usual; third joint not as wide as the second; claws appendiculate rather than toothed. Mentum with the lobes wide, nar- rowly rounded at tip; ligula large and coraceous, filling up the emargi- na'ion of the mentum more than in the preceding genera, (somewhat as in certain Lehiini). 1. A. bifasciatus, n. sp. Blackish brown, with a brassy tinge; head and prothorax densely punc- tured, thinly clothed with cinereous hair; the latter longer than wide, nar- rowed at tip and base; elytra with punctured striae, and two ill-defined, broad bands of cinereous hair; the anterior one extending along the suture to the base; scutellum white. Length 4.3 mm. ; .17 inch. Canada, one pair, Mr. Billings; Illinois, one 9) Mr. B. D. Walsh. This is Tropideres ohlongas\Y)Q]. Cat. Group III. Hormisci The genera upon which I have founded this group, seem sufiiciently distinct from the other Corrhecerides of Lacordaire to be separated from them. I would define it by the following characters: Beak not dilated at the sides over the antennal cavities. Eyes emargi- nate, not finely granulated. Prothoracic ridge antebasal, curved or ob- tusely angulate backwards at the middle, flexed obliquely forward at the sides. Tarsi with the first joint long; second triangular, scarcely emarginate; LeConte.] TROPIDEBIXI. 397 third bilobed, not narrower, but shorter than the second; claws acutely- toothed at the middle. Mentum transverse, less deeply emarginate than usual, with the emargination nearly filled by the broad basal piece of the ligula; transverse suture between the gula and mentum distinct. Antennal club 3-jointed 2. " " solid, sensitive only at tip HORMISCUS. 2. Eyes feebly emarginate; claws indistinctly toothed. . TOXOTROPIS. Eyes strongly emarginate ; claws cleft almost to the base GONOPS. HORMISCUS Wollaston. In this genus the form is cylindrical and less slender than in Tropideres. The beak is broad and flat, not longer than the head, with the antennal cavities lateral, not covered by the sides. Eyes rather large, less finely granulated, oblique, feebly emarginate; antennas alike in both sexes, hardly extending to the base of the prothorax, club oval, apparentlj' solid. Pro- thorax scarcely longer than wide, gradually narrowed in front; more rap- idly narrowed behind the transverse carina, which is slightly oblique, par- allel with the base, and ends each side in a lateral cusp. 1. H. saltator, n. sp. Brownish black, mottled with spots and bands of cinereous pubescence; prothorax densely and finely punctured; elytra with rows of large and deep punctures, about tv^ice as long as the prothorax. Length 1.2-1.6 mm. ; .05 -.07 inch. Middle and Western States, not rare; I have adopted the specific name with which it is labeled in the collection of the late Dr. Zimmermann. There are few prominent characters in this singular little insect, except such as are of generic value. It agrees with the Galipagoan H. variegattis in having the transverse ridge of the prothorax broadly angulated at the middle, but the latter differs, according to description, in color, and in having the elytra indistinctlj' punctato-striate. The specimens vary greatly in appearance, according as the pubescence is more or less abraded. In the best preserved individual, the prothorax is mottled, and the elytra also, but the mottlings of the latter are arranged so that a subscutellar space on each elytron, and a broad, post-medial band not reaching the margin, are left free from cinereous spots. The posterior transverse carina of the prothorax is slightly oblique, forming a very obtuse angle backwards on the median line, and projects at the side as a small, sharp cusp. TOXOTROPIS n. g. This genus is closely related to Hormiscus, and in fiict only differs from it by the antennal club which is elongate-oval, compressed, and composed of three distinct joints equal in length. The eyes are rather finely granu- lated, and only feebly emarginate; the antennal cavities are small and rounded. The antebasal ridge is regularly curved in an arc of ti circle, for 39S A^N^THRIBID^. [LeConte. the greater part of its length, but directed transversely towards the sides, and not flexed forwards; claws feebly toothed at the middle. 1. T. pusillus, n. sp. Of the same size, form and color as Hormiscus saltator, brown, varied with patches of fine white pubescence; eyes larger and more prominent; prothorax more finely punctured. Elytra with striae of rather large punc- tures; interspaces even. Length 1.3 mm.; .05 inch. Tampa, Florida, one specimen, Mr. E. A. Schwarz. 2. T. approximatus, n. sp. Of the same form, color and sculpture as T. pusillus, but the antebasal ridge is less curved, and therefore is more parallel with, and nearer to the base than in that species. The hind angles near the base are therefore less prominent, and the body is somewhat stouter. Length 1.5 mm.; .06 inch. One specimen, San Diego, Cal. ; Mr. G. R. Crotch. GONOPS n. g. This genus is also related to the two preceding, but differs from Hormis- cus by the autennal club compressed, and composed of three joints equal in length; the antennal cavities are small, and the eyes are deeply emargi- nate and rather finely granulated. It differs from both by the claws being cleft almost to the base, with the inner portions converging as in Anthono- mus. It also differs from all the other genera in our fauna by the middle and hind tibiis being armed with a small mucro or spine at the inner side of the tip. The form is a little stouter than in Hormiscus; the antebasal ridge of the prothorax is curved in the arc of a circle; towards the sides it is nearly transverse, and is not flexed forwards. 1. Gr. flssunguis, n. sp. Oblong, rather robust, brown, mottled with small spots of yellowish gray pubescence. Head and prothorax opaque, very densely and finely punctured ; the latter a little wider than long, narrowed from the end of the ridge forwards, but scarcely rounded on the sides; rapidly and con- cavely narrowed behind the ridge, the end of which forms an acute lateral angle. Elytra not wider than the widest part of the protharax, convex; striae composed of moderate sized punctures, interspaces very finely punc- tulatc. Length 2.5 mm.; .10 inch. Three specimens from Big Trees, California; sent by Mr. James Behrens to Dr. Horn. Tribe II. basitropim. The only characters of a general kind which can be given to distinguish this from the other tribes, are that the antennae are inserted under the sides of the beak, and that the prothoracic ridge is quite basal, causing the surface behind it to become perpendicular ; it consequently attains the hind angles, and is there flexed forwards, not obliquely and at an obtuse angle, but rectangularly. As a farther consequence of this arrangement, the basal margin of the elytra is acute. LeConte.J BASITROPINI. 309 Our species represent but three groups : Beak with parallel or nearly parallel sides 2. " narrower in front, trapezoidal Braohytarsl. 2. Tarsi with third joint wider, deeply bilobed, visible from alj»ve Aiitliribl. Tarsi with the third joint bilobed, not visible from above Cratopares. Group I. Anthribl. These species are sufficiently distinguished from Oratopares by the third joint of the tarsi being not narrower than the second, and quite visible from above ; the second joint is broad, triangular and rather flat, emargi- nate at tip. The sides of the beak partly cover the antennal cavities, which are large and deep, and but slightly visible from above. The antennae are sometimes very long in the ^T, and the first joint is stouter and shorter than usual. The tarsal claws vary according to genus. Except in ^4/1- thribus the antennal cavities are somewhat distant from the eyes. Hind angles of the prothorax not directed out- wards 2. Eyes emarginate, hind angles of prothorax di- rected outward ; front coxiE contiguous EUSPHYRUS. 2. Front coxae contiguous or nearly so 3. " " well separated by the prosternum. 4. 3. Claws almost cleft, body elongate-cylindrical, eyes emarginate PHCENIOOBIUS. Claws feebly appendiculate, body stout sub- cylindrical, eyes oval PIEZOCORYNUS. 4. Eyes rounded ANTHRIBUS. Eyes broadly emarginate TOXONOTUS. EUSPHYRUS n. g. The beak is shorter than the head, broader than long, slightly narrowed at base, obliquely narrowed in front of the widest part, not emarginate at tip, but bordered as usual with a coriaceous clypeus ; eyes moderate, ovate, broadly emarginate in front, not coarsely granulate ; antennae not longer than head and thorax ; first and second joints thicker not elongated, 3-6 slender, gradually a little shorter, seven and eight slightly thicker, 9-11 equal in length, forming a loose compressed club. Prothorax wider at base than its length, gradually narrowed from the base, feebly rounded at the sides, not projected over the head in front, but truncate ; hind angles acute, prominent laterally; transverse ridge absolutely basal, scarcely ex- tending along the sides. Elytra cylindrical, deeply punctato-striate, not wider than the prothorax, and about twice as long. Front coxae promi- nent, contiguous; tarsi as long as the tibiae ; first joint as long as the others united, third joint not narrower than the second, very short ; claws with a small acute tooth near the base. Mentum more narrowed behind than usual, buccal fissures wider. 400 AXTHEIBID^. [LeConte. 1. Eu. "Walshii n. sp. Elongate oval, subc^^lindrical, brownish -black, opaque, clothed with fine cinereous pubescence, and mottled with patches of yellowish-white hair ; head and prothorax densely and finelj^ punctured, the latter feebly bisinuate at base, with the hind angles acute, divergent ; elytra with deep strongly punctured strife, disc broadly impressed transversely about one fourth the length fi'om the base ; antennae at base, tibiie and tarsi dark testaceous. Length 3.2 mm.; .13 inch. One specimen, Illinois ; B. D. "Walsh. This species has the general ap- pearance of Brachytarsus, and without examination of the characters of the genus and group might readily escape recognition. PHCENICOBIUS n. g. Body elongate-cylindrical. Beak about as long as wide; sides acutely elevated in the (^, but less so in $, limiting the antennal cavities which are large and deep, extending nearly to the tip, but not limited behind, and not reacliing the eyes; the beak is emarginate in front, and finely carinate, the carina terminating behind in an angulated impressed line. Eyes coarsely granulated, rounded, somewhat transverse, broadly emarginate in front. An- tennas ((5^) much longer than the body; first joint thick, one-half longer than wide; second one-half the length, and much thinner; 3-5 very long, equal, extending to the second ventral suture; C-9 gradually a little shorter, densely fringed beneath with short, fine, curled hairs; 10-11 together longer than ninth, not thicker, similarly fringed; 11th pointed and slightly curved. Mentum with the lobes rather acute at tip, and the bottom of the emargina- tion straight. Prothorax longer than wide, narrowed in front of the middle and slightly rounded on the sides; basal ridge flexed rectangularly at the sides, and extending a little in front of the middle; inferior basal margin, (on the perpendicularly declivous face which is adapted to the base of the elytra), finely crenulate. Elytra not wider than the base of the prothorax, margined at base; scutellum small, rounded, not depressed; striae composed of large punctures, interspaces nearly smooth. Front coxae very narrowly separated by the prosternum. Tarsi with the first joint not longer than the second and third; second broadly triangular, with the apical angles prolonged; third joint still wider, excavated above for the articulation of the next joint, but scarcely emarginate beneath, forn)ing a broad cushion as in certain Calandridm, not less dilated in 9 than (j^; claws with a long, basal tooth, causing them to appear almost cleft as in Anthonomus. The ventral segments gradually diminish in length; the fifth is broadly emarginate; the pygidium is channeled more deeply than usual, and the groove extends nearly to the tip. The antennae of the 9 are three-fourths as long as the body; the joints are proportioned relatively as in the J^, but the last three (9-11 ) are broader, forming a loose, elongate club, which is slightly fringed beneath. The other joints are not fringed. Leconte] BASITROPINI. 401 1. P. Chamaeropis, n. sp. Elongate-cylindrical, brown, mottled with fine pubescence of gray, yel- low, fulvous and black colors; bead and prothorax coarsely punctured; elytra with the first and alternate interspaces slightly more convex, tessel- lated with black and yellow; the intervening spaces with cinereous hair. Under surface mottled; metasternum densely clothed with yellowish-white pubescence. Legs and antennae also mottled vv^ith gray and dark brown pubescence; the outer half of the ninth and the whole of the tenth and eleventh joints of the antennae are nearly black. Length ((j^) 7.3-11 mm. ; .29-. 44 inch; (?) 4.5-9.3 mm.; .18-.37 inch. Florida, abundant on Ghamwrops palmetto; Messrs. Hubbard and Schwarz. The antennae of the smallest (^ are scarcely longer than the body; those of the largest are nearly double the length. This is Anthribus cylindricus { Dej. Cat. PIEZOOORYNUS Sch. Body stout, cylindrical. Beak broad, flat, not as long as wide, not emar- ginate at tip; antennal cavities large and deep, not extending to the eyes, partially covered by the sides of the beak. Eyes subtriangular, coarsely granulated. Antennae (J*)* one-half longer than the body; first joint stout. rounded; second nearly twice as long, conical; 8-8 more than twice as long as the second, slightly thickened towards the tip; 5-8 feebly carinate on the outer face; eighth more flattened towards the tip than the others, 9-11 forming a compressed, elongate club, pubescent and sensitive, in which the tenth and eleventh joints together are shorter than the ninth; the last named is obliquely emarginate at tip, and twice as long as wide; the tenth is transverse and similarly emarginate. Mentum with the lobes subacute at tip, the emargination rounded, and the buccal fissures rather wide. Pro- thorax wider than long, truncate at base, with the ridge flexed rectangu- larly at the hind angles, and extending along the sides nearly to the tip; sides gradually converging and slightly rounded. Elytra not wider than the prothorax, with punctured striae; third and fifth interspaces wider and slightly more convex. Front coxae nearly contiguous; tarsi with the first joint a little longer than the second, which is broad, triangular and emar- ginate; third joint wider than the second, deeply bilobed; claws broadly but not strongly appendiculate. The antennae of the ? are about one- half as long as the body; the second joint is longer and more slender; the subsequent joints 3-8 are about one- half longer than the second, and the cfub is broader. Antennae not very slender ; prothorax with two shallow de- pressions and three elevations occupying the middle third 1- dispar. Antennae very slender ; prothorax without impressions or elevations ; pubescence mottled yellow brown and black 2. mixtus. *-This description is made from P. dispar; it is still doubtful if the sexual dif- ferences exist in the other species. PROC. AMER. PHILOS. SOC. XV. 96. 3y 402 ANTHRIBIDJE. [LeConte. Antennae very slender ; prothorax without impressions or elevations ; pubescence nearly black 3. moestus. 1. P. dispar Gyll., Scli. Cure, i, 140. This species, first described from Brazil, occurs in Missouri and Texas. It differs from the following in the proportions of the antennal joints, but not sufl3ciently to place the species in separate genera ; the markings of the elytra are similar, but in the present species, in well preserved specimens, there is a greater condensation of ochreous pubescence along the first and second interspaces, which thus cease to be tessellated. Length 6.1-7.3 mm.; .24-29 inch. 2. P. mixtus n. sp. Middle and Southern States, rare. Oblong-cylindrical, opaque, brown, mottled with testaceous; head and prothorax very densely punctured, the latter narrowed in front, not rounded on the sides ; elytra with an obtuse elevation each side near the base, striae composed of deep approximate punctures, interspaces tessellated; antennae very slender, joints of the club equal in length. Length 4.7-3 mm.; .17-24 inch. Of the same form and color as P. dispar, but smaller, with the sides of the prothorax nearly straight, and the antennae more slender, and quite diiferent in the terminal joints. The second joint is more strongly clavate, the 3-8 very slender, gradually diminishing in length as in P. dispar 9 • but more slender, the eighth being very feebly triangular, ninth, tenth and eleventh forming a loose club, the two former not emarginate, the latter not narrower ; the ninth is longer than the eighth, and the tenth and eleventh a little shorter. Three specimens are before me, in which I can perceive no sexual differ- ences ; the antennae are about two-thirds the length of the body. This is Tropideres caliginosus \ Dej. Cat. 3. P. moestus ; Anthribus mmstus Lee, Ann. Lye. Nat. Hist. N. York, i, 172 ; pi. xi, f. 13. Georgia and Florida. This species exactly resembles the preceding, ex- cept that it is a little more robust, and the pubescence is finer and of a grayish-black color, tessellated with black on the elytra ; the only white spots are two small dots on the prothorax, one at the middle of the apical margin, the other in front of the scutellum, which is also white. The legs are annulated with dark cinereous. Length 4 mm.; .16 inch. The figure given by my father, like all others on the plate, is quite characteristic. ANTHRIBUS Fabr. (nee Geoflfroy) ; emend. Lac. Lacordaire has restricted this generic name to those members of the present tribe in which the front coxae are rather widely separated by the prosternum. Additional characters are : the beak flat with parallel sides, wider than long and feebly carinate in the first species ; eyes rounded, convex, coarsely granulated ; antennal cavities large, extending to the eyes. Antennae half as long as the body, second joint somewhat longer LeConte.] BASITROPINI. 403 than the third, and equal to the fourth ; 4-8 slightly diminishing in length and increasing in thickness ; 9-11 forming a compi'essed oval cluh. Pro- thorax with the ridge extending along the sides to the middle. Elytra cylindrical, not wider than the prothorax, with stria3 composed of large punctures. Tarsi with the first joint a little longer than the second, w^hich is triangular and emarginate ; third as wide as the second, deeply hilobed ; claws acutely toothed at the middle. Mentum with the lobes subacute at tip, gula transversely impressed just behind the buccal fissures. Pubescence tufted ; elytra with a large transverse white spot in front of the middle 1. cornutus. Pubescence short, uniform, dense, yellowish-gray 2. lividus. 1. A. cornutus Say, Cure. 4 ; ed. Lee, i. 362 ; A. coronatus Gyll., Sch. Cure, i, 141 . Atlantic States, especially Georgia and Louisiana. Easily recognized by the tufts of hair on the prothorax and elytra, and by the conspicuous com- mon transverse white spot in front of the middle, which extends to the sixth stria. Length 4.6-5.8 mm. ; .18-.23 inch. 2. A. lividus n. sp. Elongate-cylindrical, brown, densely clothed with short depressed mud- colored hairs, club of antennte dark. Beak entirely flat, not at allcarinate. Prothorax longer than wide, slightly rounded on the sides, narrowed from the middle to the apex, which is broadly rounded ; side margin extending to the middle. Elytra with striae composed of distant small punctures, en- tirely even and equal in width. Pygidial groove very short, not extend- ing beyond the tips of the elytra. Length 4.4 mm. ; .17 inch. One specimen. Lake Harney, Florida ; Messrs. Hubbard and Schwarz. The front coxae are less separated than in A. cormitus, but are far from being approximate, as in the other genera of the tribe. I have adopted the name under which it appears in the catalogue of Dejean. TOXONOTUS Lac. 1. T. fascicularis Lac, Gen. Col. vii, 576 ; Anthribus fasc. Sch., Cure. i, 132. A fine (J^ of this well-known Cuban species was found by Mr. E. A. Schwarz at Enterprise, Florida, in May. The reniform eyes and legs thickly clothed with erect flying hairs, as in many Cerambycidm, entitle it fully to generic recognition ; and the prolongation of the first joint of the tarsi into a long spine in the (^ is a singular character, not occurring in any other member of the family. Length 9.2 mm. ; .37 inch. Group II. Cratopares. The insects of this group, represented by only two species in our fauna, diflfer from the AnthriM, chiefly by the second joint of the tarsi less dilated, longer, and though deeply emarginate at tip, concealing the third joint so that the articulation is not visible from above; but merely the lobes, which do 404 AJfTHKIBID^. [LeConte. not extend beyond the prolonged angles of the second joint. The beak is flat and parallel on the sides ; the autennal cavities extend to the eyes, which are oval and coarsely granulated, somewhat truncate in front. The side mar- gin of the prothorax extends to about the middle ; the base is slightly bisin- uate, and the lower basal margin is very well defined, so that when the prothorax is deflexed, it might be supposed that the transverse ridge was not absolutely basal. The same is the case, though to a less extent, in the genera of the preceding group. The front coxae are contiguous, and the meutum is but feebly emarginate in our species ; the buccal fissures are rather wide. CRATOPARIS Sch. Our two species differ by the color of the pubescence : Brown, Avith the sides of the prothorax, and large elytral spot concave backwards, yellowish-gray, rest of the sur- face mottled 1 . lunatus. Black, varied with white ; elytral spot irregular, extend- ing to the base, enclosing a quadrate black scutellar space, apex of elytra white 2. lugubris. 1. C. lunatus Fahraeus, Sch., Cure. v. 221 ; Labram and ImhofF, Gen. Cure, i, 56; Anthribus lun. Fabr., Syst. El. ii, 409; Macrocephalus albifrons Oliv., iv, 80, 12, pi. 2, f 16 ; Anthribus albifrons Boh.. Bull. Mosc. vi. 18 ; Euparius lunatus Gyll., Sch. Cure, i, 140. Euparius paganus Gyll., Sch. Cure, i, 142 ; Cratoparis pag., ibid, v, 225, small specimens. Atlantic Slates, abundant. The larva is described by Chapuis and Can- deze. Cat. Larv. Col. p. 200. 2. C. lugubris Fahraeus, Sch., Cure v, 224 ; Macrocephalus lug. Oliver, iv, 80, 13, pi. 2, f 17 ; Euparius hig. Gyll., Sch., Cure, i, 141 ; Anthribus notatus Say, Journ. Ac. Nat. Sc. Phil, v, 248 ; ed. Lee, ii, 812. Atlantic State?, abundant southwardly. Group III. Bracby tarsi. In this group the beak is gradually narrowed from the eyes forwards, so as to become trapezoidal in form ; the antennal cavities extend to the eyes, which are coarsely granulated and emarginate in front. The first and second joints of the antennae are stout, the second a little longer, 3-8 shorter, gradually a little wider ; 9-11 much wider, forming an oval com- pressed sensitive club. Prothorax rounded in front, overhanging the head, basal ridges flexed rectangularly at the angles, but extending only a very short distance along the sides; inferior basal margin acute. Elytra with even and equal interspaces. Tarsi with the first joint scarcely longer than the second, which is triangular and emarginate ; third deeply bilobed, not nar- rower than the second, claws toothed near the tip, so as to appear cleft. Mentum deeply emarginate with lobes, rounded at tip ; gula transversely impressed. Our species represent two genera, one of which has not been previously recognized. LeConte.] BASITROPINI. 405 Basal ridge flexed abruptly forwards at the hind angles, and continued along the sides of the prothorax for a short distance BRAOHYTARSUS. Basal ridge gently rounded and becoming obsolete at the hind angles ANTHRIBULUS. BRAOHYTARSUS Sch. This genus contains the type of Geofl:roy's genus Anthribus ; but in con- sequence of his only semi-recognition of the binominal Linnoean nomen- clature, of a definition properly accompanied by a specific name, indica- ting the object described, was delayed until 1799. The generic name thus proposed by him (1764), was appropriated by Olivier (1789j, and by La- treille and Fabricius subsequently, and applied to an assemblage of species now divided into several genera. Schoaherr afterwards divided this as- semblage of species, and gave the name Brachyiarsus to the genus here treated of. I cannot, therefore, advise the restoration of the name Anthri- bus, with the authority Geofl:roy, to this genus, even though it be sanc- tioned by the authority of the Munich Catalogue, and the Check List of Mr. Crotch. Legs testaceous not annulated 2. Legs brown, annulated with darker; elytra tessellated on the alternate interspaces 1. alternatus. 2. More elongate, densely and coarsely pubescent with yellowish-gray hair, with indistinct stripes of gray.. 2. grisaus. Pubescence coarse and dense, yellowish-gray, slightl}' mottled with paler dots on the elytra 3, limbatus. Pubescence finer, scai'cely mottled, body more elongate than in B. limbatus 4. plumbeus. Pubescence coarse and dense, brownish-yellow, not mot- tled ; smaller and more elongate than B. limbatus. . 5. vestitus. Shorter and stouter, pubescence finer, gray, not mottled; thighs usually dusky 6. tomentosus. Longer, pubescence grayish-yellow, mottled with dark brown, elytra each with a basal spot, and another be- hind the middle 7. variegatus. 1. B. alternatus. Anthribus alt. Say, Journ. Ac. Nat. Sc. Phila. v, 250 ; ed Lee, ii, 314. New York, Missouri and Texas ; of the same form, size and color as ArcBocerus coffece, but quite different by the form and position of the an- tennae. 2. B. griseus, n. sp. Elongate, subcylindrical, piceous, densely clothed with rather coarse gray hair, verging towards ochreous in places, but without definite pattern. Head as in B. limbatus. Prothorax longer than its width at base, rounded, but scarcely narrowed on the sides as far as the middle, then more oblique- ly rounded and narrowed to the tip, which is rounded as usual ; base 406 ANTHRIBID^. [LeConte. broadly rounded, sinuate near the hind angles, which are acute ; disc strongly punctured, but the punctures are concealed by the dense pubes- cence. Elytra not wider than the base of the prothorax, and about twice as long as it ; striae narrow, rather finely punctured. Legs and antennae yellowish-brown, club darker. Length 3.5 mm. ; .14 inch. Colorado, six specimens ; Prof. F. H. Snow. The body is elongate as in B- variegatus ; the pubescence is nearly uniform, but tliere are, sometimes, three paler gray vittse on the prothorax, and a broad one occupying the 5th and 6th interspaces of the elytra. The side margin produced by the flex- ure of the basal ridge extends nearly one-half of the length of the pro- thorax. 3. B. limbatus Say, ibid, v, 250 {Anthribus) ; ed. Lee, ii, 314. Atlantic States, varies in size from 2.2-3.1 mm. ; .09-. 12 inch. 4. B. plumbeus, n. sp. Oblong, cylindrical, black, densely clothed with cinerous pubescence, not mottled; stri* of elytra fine, punctured; antennie and legs testaceous, club and thighs darker. Length 3.2 mm., .13 inch. Middle States. Of the same form as B. limbatus, but a little narrower; the pubescence is finer, of a uniform gray color. The posterior ridge ex- tends only one-third the length of the prothorax at the sides, while in B. limbatus it goes fully as far as the middle. 5. B. vestitus, n. sp. Oblong-cylindrical, black, densely clothed with coarser brownish-yellow pubescence, scarcely mottled striiB of elytra punctured, interspaces fiat; an- tennae and legs testaceous. Length 2 mm. ; .08 inch. Louisiana; Mr. Ulke. Smaller and narrower than B. limbatus, densely covered in the same manner with coarse, brownish -yellow pubescence; the hind angles of the prothorax are acute; but the transverse ridge scarcely ex- tends along the sides in front of the base. 6. B. tomentosus Say, Journ. Ac. Nat. Sc. Phila. v. 251 (Anfhnbus) ; ed. Lee, ii, 315. Brachytarsus brevis Fahraeus, Sch. Cure, v, 168. Middle and Western States; on Ambrosia (C. V. Riley). The ridge ex- tends from the hind angles about one-third the length cf the prothorax. 7. B. variegatus Say, Journ. Ac. Nat. Sc. Phila. v, 251 {AjithribwC); ed. Lcc, ii, 315; Brachytarstis sticticus Gyll., Sch. Cure, i, 172. Atlantic States; Say notes its occurrence in the smut of wheat. A species of rather elongate form, and easily known by the basal and postmedial fuscous spots near the suture; varieties however occur in which these spots are obsolete, and the specimens are then to be distinguished from A.limba- ttis by the narrower form, and more elongate prothorax. Such specimens probably represent B. obsoletus Fahraeus, Sch. Cure, v, 167. The ridge ex- tends from the base along the sides for about one half the length. ANTHRIBULUS n. g. The small species upon which I have founded this genus is of more elongate form than Brachytarsus, but agrees with it in the trapezoidal LeConte.] AR^OCERINI. 407 form of beak, and the first joint of the tarsi not hunger than the second. It differs, however, by the basal ridge of the prothorax being not rectangu- larly but only obtusely flexed at the outer ends, and not continuing along the sides. The claws are cleft at the tips for about one-fourtli their length. 1. A. rotundatus, n. sp. Elongate, dark brown, densely clothed with pale, cinereous and brown pubescence; prothorax broadly rounded on the sides, hind angles rounded; elytra oval, convex, striae deep, punctured. Length 1.4-2.4 mm. ; .05-.09 inch. Massachusetts to Louisiana. This species differs in form from the BracTiy- tarsi by having the sides of the prothorax broadly rounded, and the elytra slightly narrowed and rounded near the base. The body is rather elongate, proportioned nearly as in jB. variegatus, dark brown, densely clothed with brown and silvery gray pubescence; the head is flat, and the rostrum slightly narrowed at the insertion of the antennae; the latter are testaceous, with tlie club fuscous; prothorax longer than wide, gradually narrowed in front and rounded on the sides, tip rounded; base broadly rounded, transverse ridge not continued along the sides; hind angles obtuse, slightly rounded. Elytra oval, convex, a little wider than the base of the prothorax; humeral angles rounded, not prominent; striae rather deep, punctured; legs testaceous. The antennae are rather stouter than in Brachytarsus, and scarcely attain the base of the prothorax. Tribe IIL ARiEOCERINI. But two genera of this tribe have occurred in our fauna ; they are of small size, and are easily known by the antennae being inserted in small foveas upon the upper surface of the beak. The transverse carina of the prothorax as in the preceding tribe is basal, suddenly flexed, forming a right angle, and extended a short distance along the sides; the antennae are slender, and the last three joints form a loose club. The elytra are regularly striate as in all the preceding tribes and groups of the fomily. Antennae with second joint shorter than the first Arwocerus. " ^ " " as long as the first, elytra striate, ctaoragrus. AR^OOERUS Sch. 1. A. fasciculatus Wollaston, Ann. Nat. Hist, v, (1870), 18 ; CurcuUo fase. DeGeer, Mem. Ins. v, (1775), 276, pi. xvi. f. 2 ; Bruchus cacao Fabr., Syst. Ent. 64 ; Ent. Syst. 1, 2d, 370 ;^Syst. El. ii, 397; Macrocephalus cacao Oliv., Ent. iv. No. 80, 15, pi. 2, f. 21; Anthribus coffea;. Fabr., Syst. El. ii, 411 ; Amocerus coffece Gyll., Sch. Cure, i, 175 ; Labr. and Imhoff, Cure, i, 55 ; Anthribus capillicornis Say, Journ. Ac. Nat. Sc. Phila. v, 249 ; ed. Lee, ii, 313. Atlantic and Pacific States in articles of commerce. This cosmopolitan species has many other synonyms, which may be found in Harold and Gemminger, Cat. Col. p. 2749. From these must be excluded Anthribus mmtus Lee, Ann. Lye. New York, 1, 172, which, as mentioned above, be- longs to Piazocorynus. 408 AKTHRIBID^. [LeConte. OHORAGUS Kirby. 1. O. Ziramermanni, n sp. Oval-subcylindrical, brown, without lustre, slightly pubescent, pro- thorax densely punctured, elytra deeply striato-punctate, interspaces densely and finely punctulate, antennae and legs yellow. Length 1.3 mm. ; .06 inch. North Carolina ; Dr. C. Zimmermann. According to description this species difters from the European C. Sheppardi hy tlie prothorax not being very finely punctured, and from G. piceus by the elytra not being shining. 2. O. Sayi, n. sp. Elongate-oval, subcylindrical, blackish, prothorax densely punctured, slightly pubescent, elytra deeply striato-punctate, shining, interspaces less densely and more distinctly punctulate; antennae dark testaceous, feet piceous. Length 3.3 mm. ; .09 inch. Washington, D. C. ; Mr. Ulke. Larger and narrower than the preced- ing, with dai'ker legs, and shining elytra. Tribe IV. XEKORCHESTINI. The species of this tribe have lost all appearance of the family, and in- deed of Rhynchopliora. Tlie only one known to me in our fauna might be readily mistaken for a small CrypfocepTialns; while the Maderan species figured by Wollaston* seems to resemble in miniature Gihhium- The body is oval or ovate, very convex, and quite glabrous. The beak is so short as to be not distinct from the front; the antenn* are inserted ujion the front, which is deflexed ; the eyes are small, transverse oval. The first and second joints of the ajiteunse are longer and stouter ; 3-7 shorter and thinner, nearly equal ; eighth subtri angular, a little wider, 9-11 wider forming a loose club. Prothorax narrowed from the base for- wards, ridge entirely basal, flexed at the hind angles, and continuing a short distance along the sides. Scutellum invisible. Elytra not striate. Tarsi with the first joint elongated ; second triangular, emarginate; third bilobed ; claw^s. slender, not toothed. Two genera would seem to be indicated ; the first of which is unknown to me in nature. Upper surface smooth XENORCHESTES. Prothorax punctured ; elytra with irregular double rows of punctures EUXENUS. XENORCHESTES Woll. 1. X. americanus Motsch., Bull. Mosc. 1873, ii, 251. Unknown to me ; found on bushes near Mobile, Alabama. The follow- ing is the description given by Motschulsky : Statura et color X saUUantis sed duplo minor ; gibbosus, acariformis, * Insecta Maderensia, pi. viii, f. 8. The maxilla has a strikingly Adephagous form, the inner lobe being curved, acute, and sparsely spinose on the inner edge. LeConte.J APION^ID^. 409 antice attenuatus, nitidus glaber, niger; elytris subsenescentibus, antennis pedibusque ferrugineo-testaceis ; capite obtuso, oculis planiusculis ; Ihorace antice capitis latitudine, subcouico, postice latioie, basi simpliciter trun- cato ; elytris antice thoracis latitudine, postice ovato-dilatalis. Long. § lin. ; lat. elytr. ^ lin. EUXENUS u. g. I can give no other characters for distinguishing this genus, except the punctured surface and less ovate form of body. 1 . E. punctatus n. sp. Oval, very convex, slightly narrower in front ; brownish-black, glabrous shining ; sides of elytra piceous, base of antennae and legs testaceous. Head feebly punctulate. Prothorax a little wider at base than long, gradu- ally narrowed from the base forwards ; tip broadly rounded, base nearly rectilinear ; disc deeply but not coarsely punctured. Elytra scarcely wider than the base of the prothorax, and punctured similarly, except that the punctures are arranged in irregular double rows, with narrow intervening smooth spaces. Beneath brownish, punctured ; ventral segments short, equal. Length 1.2 mm. ; .05 inch. Detroit, Michigan ; one specimen ; Messrs. Hubbard and Schwarz. Dr. Horn has received another from Canada. The head is so much deflexed that I cannot examine the form of the mentum without risk of breaking the insect. Family XL APIONID^. Mentum narrow, linear, much longer than wide, inserted upon a short gular peduncle of equal width ; slightly channeled at tip, reaching nearly to the mandibles, and quite concealing the ligula and palpi, which are very small, maxillas entirely filling the buccal fissures with a large corneous mass ; palpi not visible ; on dissection they appear very short, with not more than three joints ; there is but one broad lobe, densely fringed with hairs. Mandibles three-toothed, the middle tooth curved, acute, forming the apex ; near the tip on the anterior edge is a small tooth ; the thiid tooth is on the inner side and very large. AntennsE inserted at the sides of the beak, in foveas, eleven-jointed, straight, first joint longer than second ; these two are stouter tiian the suc- ceeding ones ; 9-11 broader and longer, forming an oval pubescent club, which is pointed at the end. Head prominent, not deflexed, not narrowed behind the eyes, which are rounded, convex, and not finely granulated ; beak long and slender, some- times stouter towards the base ; without antennal grooves. Prothorax truncate, in front, without postocular lobes, subsinuate behind, gradually narrowed from base to tip ; prosternum very short, coxal cavities rounded, confluent, closed behind ; prosternal sutures distinct. Mesosternum small, narrow between the coxae ; side pieces diagonally di- vided ; epimera triangular, pointed at the inner side, and not attaining the PROC. AMER. PHILOS. SOC. XV. 96. 3z 410 APIONID^. [LeConte. coxal cavities. Metasternum a little longer than the first ventral segment, side pieces narrower. Elytra ample, sometimes almost ventricose, deeply striate, entirely cov- ering the pygidium ; without epipleurse ; fold on the inner surface parallel with the side margin, diverging gradually from it towards the tip. Wings large. Abdomen with the first and second ventral segments large, closely con- nate, with a fine straight suture ; third and fourth segments very short, su- tures straight; fifth longer, flat, rounded at tip ; dorsal segments membran- ous, pygidium small; anterior coxse conical, prominent, contiguous ; middle coxpe round, slightly separated; hind coxae small, transverse, rather widely separated. Legs rather long and stout; thighs somewhat clavate, tibise truncate at tip, without spurs, or spines ; tarsi dilated, first point scarcely longer, third bi- lobed ; claws divergent, appendiculate, toothed, or simple. The species of this family are small, and have a peculiar and easily re- cognized appearance. Lacordaire has placed them, as a tribe near his Atte- labides, witli which, however, as will be seen by the foregoing description, they have but little resemblance, or affinity. Lacordaire describes them as apterous ; in all the species I have examined the wings are quite well developed. I also find that in many of our species the claws are toothed or appendiculate, while in a few they are simple, and I have therefore attempted to group them in m}" collection upon those char- acters, the position of the antenna;, and the relative length of the first and second joints of those organs. The species are numerous, and many are yet undescribed. It seems hardly worth while to affix names to them, until they have been collected, with reference to the plants which they infest. I will, therefore, on the present occasion give only the bibliography of the described species, in al- phabetical order, with such notes on their habits, as I have been able to obtain. APION Herbst. 1. A. cavifrons Lee, Pac. R. R. Expl. and Surveys, Ins. 53. Oregon. 2. A. cinereum Gerstaecker, Stettin Ent. Zeitung, 1804, 250. South Carolina. 3. A. crassinasum Lee,, Pac. R. R. Expl. and Surveys, Ins. 53, Cali- fornia. 4. A. cribricolle Lee, Pac. R. R. Expl. and Surveys, Ins. 53; A. po- rosicoUe, Gemm., Col. Hefte, viii, 122. California. The change of name was suggested in the Munich Catalogue, but was afterwards withdrawn by Dr. Gemminger as unnecessary. 5. A. cuprescens Mann., Bull. Mosc, 1843, ii, 289. Alaska. 6. A. lanuginosum II Walsh, Proc. Ent. See. Phila., 18G7, 269. Il- linois, from galls Salix strobiloides produced by a species of Cecidomyia. 7. A. melanarium Gerst., Stett. Ent. Zeit., 1854, 261. 8. A. metallicum. Gerst., ibid. 243. Florida. LeConte.] APIONID^. 411 9. A. nigrum Herbst, Kafer, vii, 123, pi. 103, f. 11 : Germar, Magazin, ii, 239 ; Gyll., Sch. Cure, i, 254. 10. A. nodirostre Gerst., Stett. Ent. Zcit., 1854, 241. Florida. 11. A. cedorhynchum Lee, Pr. Ac. Nat. Sc, Phila., 1858, 78. San Diego, California. 12. A. pensylvanicum Boh., Sch. Cure, v, 417. Pennsylvania. 13. A. porcatum Boh., ibid, v, 374. 14. A. proclive Lee., Pae. R. R. Expl. and Surveys, Ins. 53. Cali- fornia. 15. A. protensuna Lee., ibid. 53. California. 16. A. reGonditum. Gyll., Sch. Cure, v, 433. Pennsylvania. 17. A. rostrum Say, Jonrn. Acad. Nat. Se. Phila., v, 253 ; ed. Lee., ii, 316 ; Cure. p. 6; ed. Lee., i, 264 ; A. Sxyi, Gyll., Sch. Cure, i, 252; Har- ris, Inj. Insects, ed. ult. (larva.) Seeds of Baptisia leucantha. 18. A. segTiipes Say, Cure. p. 6 ; ed. Lee, i, 264. Seeds of Tephrosia virginka. Also in seeds of Astragalus according to Say. 19. A. subglobosum Gerst., Stett. Ent. Zeit., 1854, 343. 20. A. trog-lodytes Mann., Bull. Mose., 1843, ii, 289. California. 21. A. ventricosum Lee., Proc. Acad. Nat. Sc. 1858, 78. Fort Yuma, California. 22. A. vile Gerst., Stett. Ent. Zeit., 1854. 249. Species are known to nie to infest the seeds of Btptisla tinctoria. Phase- olus pauctflorus; and in the Adirondack region of New York, I found a species in abundance on the leaves of the locust, Robinia pseudacacia. Say, on the authority of Dr. J, F. Melsheimer, mentions that A. rostrum is found on the same plant : Cure. p. 6, but the species collected by me is quite different. 412 APPENDIX. [LeCont., APPENDIX I. ADDITIONS AND CORRECTIONS. p. 2. add ; Pubescence long and sparse, head very con- vex, eyes protuberant 4. bombifrons. 4. Rhinomacer bombifrons, n. sp. Of the same form as R. pilotms, but larger, black, with a slight metallic tinge, thinly pubescent with long but not coarse gray hair. Beak wider at base and tip, narrowest about the middle, slightly curved, smooth above, punctured at the sides, separated from the head by a very deep constriction. Head nearly twice as wide as long, very convex, coarsely and densely punctured ; eyes veiy convex and prominent. Prothorax a little wider than long, rounded on the sides, strongly punctured, with a slight vestige of a smooth dorsal line. Elytra strongly, but not densely punctured, more finely punctured towards the tip. Aniennaj piceous, 3-7 joints paler. Length 4 mm. ; .16 inch. British Columbia, one specimen. The head is also convex in B. pilosus and compti/s ; but to a much less extent ; the otlier characters are quite dif- ferent and the elytra are much less densely punctured. p. 4. Change the table of Auletes, at follows : Antennte inserted near the middle of the beak. 2. " " " " base i< << g. 2. Last joint of antennae triangular pointed, as wide as the preceding ; black coarsely punctured, thinly pubescent L ater. Last joint of antennae narrower than the preceding, obtuse ; black finely' punctured, thinly pubescent. nasalis. 3. Bluish black, densely punctured, thinly pubescent, 2. subcoeruleus. Very small, brown, irregularly pubescent 3. cassandrse. 1-2. Auletes nasalis. n. sp. Shining black, sparsely clothed with fine suberect hairs, beak nearly as long as the head and prothorax, rather broad, narrowest at the base of the antennae, which are inserted in large lateral cavities, about ^ from the base; gradually wider towards the tip, scarcely punctured, with a longitudinal row of punctures each side from the tip nearly to the antennae. Head transverse, punctured, with a smooth frontal space ; eyes prominent. Pro- thorax wider than long, narrowed in front, rounded on the sides, not dense ly, but strongly punctured. Elytra rather densely and finely punctured. Antennse black, 9th and 10th joints large, not transverse, 11th much smalle? and narrower, triangular with rounded angles. Length 3 mm.; .13 inch. California, west of San Diego ; collected by Mr. Hardy and kindly giver, me by Dr. Sharp. The 9th and 10th joints of the antennae are transverse LeUonte.] APPENDIX. 413 and the 11th longer and acute at tip in A. atcr: and nearly the same in A. siibccenileKs: in A. rassiindrce the last joint is more obtuse, and the club is rather less loosely formed. p. 7. Change the table of BhynvkitOi as follows : 5. Color black bronzed 2. seneus, ' ' blue 3. mexicanus. " golden, tinged with green eximius. 3-4. Rhyncliites eximius, n. sp. Bright golden, tinged with green and red, clothed with erect black hairs, which are shorter than in the two species above named, beak as long as the head and prothorax, slightly broader at tip, rather stout, slightly curved, rugose, bisulcate and feebly cariuate behind the antennae ; lateral edges sharply defined ; an elongate fovea between the antennae. Head finely transversely rugose behind, sparsely and strongly punctured in front, not channeled. Prothorax about as wide as long, somewhat narrowed in front, rounded on the sides, sparsely and strongly punctured ; tip constricted at the sides, base distinctly margined. Elytra nearly one-half wider than the prothorax, striae composed of deep punctures, which are not much larger than those of the interspaces. Under surface, legs and beak, dark metallic green. Antenna?, black, inserted about the middle of the length of the beak and extending beyond the base of the elytra. Length 3.7 mm.; .15 inch. New Mexico, Dr. Horn. A very distinct species. p. 96. Phaeepholis elegans. I have tlu"ee specimens from New Mexico, agreeing in all respects with the others, except that the scales are dirty gray, not at all metallic. p. 80. Dirotognathus sordidus. Specimens collected by Mr. Crotch, at Lake Labache, British Columbia, are of smaller size (3-3 mm. ; .125 inch), and the prothorax is somewhat broader than in the Mohave and Arizona specimens, but do not difier otherwise. p. 114. in table of Sitoius, add in 3 : Elytra nearly uniform gray-brown, form less eloagate. bristles longer ; prothorax with three paler stripes hispidulus. 4-5. Sitones hispidulus Germ., Sch. Cure. ii. 123 ; Allard, Ann. Ent. Fr., 1804, 376 ; S. ImmorrJioidalis, Sch., Cure. ii. 115. This common European species occurred abundantly at the sea-shore near Long Branch, New Jersey, in July, about the roots of grass growing on the dunes. It is easily known by the long bristles of the elytra, which in our specimens are only slightly variegated in color, p. 119, to table of TrichalophuH add : Beak, channeled 5. simplex. Beak flat, not at all channeled 6. planirostris. 6. Trichalophus planirostris, n. sp. Brownish-black, clothed with pale brown prostrate hairs. Beak notchan- 414 APPEISTDIX. [LeOonte. neled, but flat, or even feebly concave longitudinally ; lateral grooves in front of the eyes triangular, feeble, short. Prothorax rounded on the sides, not constricted at tip, convex finely and densely punctured, with a very faint narrow dorsal line, with a paler lateral stripe, as in T. simplex. Elytra densely and finely punctured, without striae, but tesselated in the usual manner with darker spots. Length 8.6 mm.; .33 inch. Colorado ; one specimen kindly sent to me by Prof. F H. Sdoav, by whom it was collected while in charge of the Kansas University Scientific Expe- dition of 1876. This species exactly resembles T. simplex, except in the absence of the well marked medial groove on the upper surface of the beak. p. 124, to end of table of Plintonomus add in 5: Scales golden-yellow, elytra with conspicuous black spots, sides of prothorax rounded eximius. 4-5. Phytononius eximius, n. sp. Of the same size and form as P. comptus, black, prothorax and elytra densely clothed with golden-yellow scales, elytra with many small quad- rate spots of black scales. Head and beak densely punctured, scales dense upon the occiput, gradually thinner in front, so that the beak becomes free from scales, but sparsely pilose with long bristles ; frontal groove very short between the eyes, which are not prominent. Prothorax as long as wide, truncate at tip, broadly rounded at base, sides parallel for half the length, then obliquely narrowed to the tip, which is impressed on the sides, but not on the upper surface ; there are two ill- defined approximate basal black spots. Scutellum yellow, scaly. Elytra fully one-half wider than the prothorax, humeri oblique, obtusely angu- lated ; sides parallel for two-thirds the length, then obliquely rounded to the tip ; strife fine, well marked, distinctly punctured, interspaces flat, with- out rows of bristles, under surface covered with paler scales, legs black, thinly clothed with pale hairs, thighs with a spot of pale scales. The an- tennae are black and extend to the base of the prothorax ; the first joint of funicle large, conical, as long as the three following united ; 2-7 equal in length, but increasing rapidly in breadth, and vinited not longer than the club, which is elongate-oval and pointed at tip. Length 4.5 mm. ; .18 inch. Topeka, Kansas ; Mr. E A. Popenoe. I have seen two specimens of this very pretty species, one of which has been kindly placed in my collection. It differs from P. comptus not only by the color but by the first joint of the funicle being large and the second not longer than the following; the funicle is also thicker and the club larger than in that species. The scales in this species are deeply cleft almost to the base. Since the printing ot that part of this memoir which relates to the present genus, I have examined more closely the scales of the ditferent species in our fauna with the following result : A. Scales thick, truncate, or very feebly emarginate at tip, with the an- gles not prominent. LeConte.] APPENDIX. 415 a. Scales scarcely striate, nearly uniform ; comptus, eximius. h. Scales distinctly striate, with longer narrow ones intermixed, which are the bristles of the elytral interspaces. These bristles arc obtuse in quad- rkollis, but acute in the European rumicis. B. Scales elongate, striate, truncate and slightly emarginate at tip, opimus. C. Scales elongate, striate, acutely and deeply emarginate at tip, with the angles acute prolonged ; setigerm. In the European Pollux the scales are less deeply emarginate. The bristles are similarly striate, but longer and acute. D. Scales narrow, cleft, with slender, acute lobes ; bristles longer, acute and simple. a. Scales cleft for two-thirds the length, pubicollis. b. Scales cleft nearly to the base ; elonjafus, Castor. E. Pubescent, without intermixed scales, nigrirostris. It is apparent therefore, that valuable characters may be found for the recognition of the species in this difficult genus, by the study of the form of the scales. p. 155 add : 1. Liixus pleuralis Lee, Pr. Ac. Nat. Sc. Phila., 1858, 78. This species has a slender form, and is clothed with rather coarse grayish pubescence, with a stripe of paler color at the sides of the prothorax and ely- tra. The beak is cylindrical, rather stout, about twice as long as the head, punctured, carinate for one-half its length, without fovea between the an- tennae ; frontal groove short, deep, antennsE inserted one-fourth from the tip, black ; fuuicle stout, first joint but little longer than the second, which is scarcely longer than the third. Prothorax one-third longer than wide, gradually narrowed from the base forwards, sides straight ; punctures large, shallow, approximate, disc longitudinally broadly and somewhat deeply excavated towards the base ; medial angle produced, obtusely rounded. Scutellum not visible. Elytra a little wider than the prothorax, sides rounded near the base, then converging behind, tips separately slightly prolonged, and acuminate ; striae composed of distant punctures, mostly concealed by the coarse pubescence. Length 7.6 mm.; .30 inch. Arizona and Lower California. This species is as slender as L. rubelhis, but the tips of the elytra are only sliglitly prolonged, and the other char- acters are quite different. I neglected to mention that the third joint of the tarsi in L. pleuralis and texanus is much less broadly dilated, and the lobes are less obtusely rounded than in the species of division C. The lobes therefore envelop more closely the base of the fourth joint, thus showing a transition from Cleonus to Lix- us, which would probably warrant the separation of these species as a dis- tinct genus. The first part of the table might be modified to indicate this difference, which is better than the characters I have used on p. 154. 416 APPENDIX. [LeConte. Tarsi with the third joint less broadly dilated ; cush- ions narrow, imperfect on the first and second joints.. 2. C. Tarsi with the tliird joint very broadly dilated and more deeply bilobed; cushions of under surface complete 3. 2. A. Beak cylindrical, carinate for part of the length : Body very elongate, sides of prothorax straight, elytra acuminate at tip ; pubescence coarse and dense 1. pleuralis. Body less slender, pubescence short and fine, with longer hairs intermixed, scutellum distinct, tips of elytra acutely rounded mixtus. B. Beak stouter, less cylindrical, very indistinctly ca- rinate 4. 1-2. Lixus mixtus, n. sp. Elongate, not very slender, black, pruinose with very fine short gray pu- bescence, with longer suberect hairs intermixed. Beak rather stout, cylin- drical, finely but strongly punctured, with a short longitudinal groove be tween the antennae, and a deep frontal fovea ; between these points it is distinctly carinate ; thinly pubescent, with suberect hair, nearly naked at the tip. Head punctulate, with scattered larger punctures which extend upon the basal part of the beak ; antennsB inserted one-third from the tip, black, funicle as in L. pleuralis. Prothorax scarcely longer than wide, narrowed from the base forward and rounded at tlie sides, convex, bisinu- ate at base, medial lobe broad, prolonged, obtusely angulated ; disc densely punctulate, with large shallow punctures not densely placed ; vaguely and broadly longitudinally impressed from the middle to the base : there is a broad lateral stripe, and two indistinct dorsal ones of denser gray hair. Scutellum small, but distinct. Elytra separately rounded at the base, the curvature being continued to the sides, so that the humeral angles are in- distinct, sides parallel, rounded behind ; tips separately acutely rounded, with a small tuft of hair which gives them the appearance of being sub- acuminate ; broadly impressed near the base, which causes the basal margin to become obtusely elevated ; striae composed of distant round punctures ; sides with a broad stripe of denser pubescence. Beneath clothed with gray pubescence, coarsely and sparsely punctured. Length 10 mm.; .40 inch. Colorado, one specimen, which I owe to the kindness of Mr. B. D. Smith. At first sight this species greatly resembles L. placklus (p. 159), but the characters are very different. p. 154 in tables of Lixus modify No. 11 as follows : 11. Scutellar angle of prothorax very obtuse 11'. " " " produced, acute, basal excavation small, deep fossus. 11'. Prothorax with shallower punctures 8. punctinasus. " " few deep " ; (smaller).... 9. parous. 7-8. Lixus fossus, n. sp. Black, pruinose with cinereous very short hair, and mottled with small LeConte.] APPENDIX. 417 spots of longer whitish hair. Head and bevxk as in L. punctinasxs, densely rather finely pu-ictured ; beak as long as the prothorax, rather stout, chan- neled between the antennae, tlien obsoletely cariuate to the frontal fovea ; thinly pubescent. Prothorax a little longer than wide, gradually narrowed from base to tip, very feebly rounded on the sides, base slightly oblique each side, medial angle prolonged, acute ; disc densely rugosely punctu- late, with scattered larger punctures; basal excavation small and deep. Elytra scarcely wider than the base of tlie prothorax, but slightly rounded near the ba«e ; tips separately acutely rounded ; basal impressions shallow, stricB composed of distant round punctures. Antennae brown, inserted one-third from the tip. Length 8.5 mm.; .35 inch. Enterprise, Florida, one specimen ; Messrs. Hubbard and Schwarz. Easily known by the small deep prothoracic excavation and the acute scutellar lobe. Another specimen from Florida agrees in form and sculpture, but differs by the beak more finely punctured, or rather punctulate, shining, and very slightly pubescent. The basal excavation of the prothorax is larger, less deep and vaguely channeled ; the medial angle is equally acute and pro- longed. The elytra are separately but more obtusely rounded at tip. I think this is the 9 corresponding to the (^ above described. p. 158, in next to last line dele L. calandroides as a' synonym of Lixus Tmisculus, and add on page 153 : 12. 01eonuscalandroid.es ; Lixus cul. Randall, Bost. Journ. Nat.Hist. ii, 48. Massachusetts. By the kindness of Mr. E. P. Austin, two specimens of this species were recently sent to me. On examination I found to my great surprise, that it is a species of Gleonus c\ose\ja\\\ed to vitfatus and sparsus, but differing by the beak more finely punctured, and. the elytra clothed with uniform, finer, gray pubescence. The antennae are much stouter than in Lixus, and the first and second joints of the hind tarsi are not spongy be- neath. Length 9.5 mm. ; .375 inch. p. 176. The last paragraph under 1. Eiulalus setosns belongs to 3. E. limatulus. p. 192, add. 2. Magdalis subtinctus, n. sp. Black, subopaque, elytra with a blue reflection. Beak shining, sparsely punctured, head opaque, sparsely and finely punctured. Prothorax coarsely and densely punctured, about as wide as long, angle near the tip acute prominent, sides then sinuate to the. basal angles which are acute and prominent. Elytra convex, gradually slightly wider behind, stria? strongly punctured, interspaces very finely and densely rugose, almost alutaceous. Thiglis with a small acute tooth, clawg distinctly toothed near the base. Length 4 mm. ; ,15 inch. California, found by Mr. Crotch at Gilroy ; related to M. yracilts, but the eyes are smaller and more flat, and the sides of the prothorax more PROC. AMER. PHILOS. SOC. XV. 96. 3a 418 APPENDIX. [LeConte. broadly sinuate behind the postapical angle, widest at the middle, and the hind angles are prolonged. 3. Magdalis hispoides, n. sp. Elongate, cuneiform, deep black, somewhat shining, beak as long as the prothorax, slightly curved, strongly, but not densely punctured ; head similarly punctured, eyes large, slightly convex. Antennae inserted above the middle of the beak. Prothorax a little longer than wide, narrowed from the base forward, sides nearly straight, not toothed, slightly con- stricted near the tip ; hind aagles not produced ; disc densely, moderately, coarsely punctured. Elytra with striae not impressed, but composed of approximate quadrate punctures ; interspaces as wide as the striae, each with a row of well marked approximate punctures, thighs not toothed, claws simple. Length 3. 5 mm. ; . 14 inch. British Columbia, one specimen, Mr. Crotch. Resembles a small narrow Microrhop<(l(i in appearance. 4. Magdalis gentilis, n. sp. Elongate, black, with a bluish tinge on the elytra, beak as long as the prothorax, curved, finely punctured. Head opaque, sparsely punctulate, antennne inserted about the middle of the beak. Prothorax a little longer than wide, sides parallel from the base for nearly one half the length, then rounded to the tip, which is tubularly constricted ; hind angles not pro- duced ; disc densely, but not coarsely punctured. Elytra with striae com- posed of approximate punctures, interspaces feebly convex, wider than the striiB, subopaque, finely reticulate, and marked with small rugose punc- tures. Tliighs armed with a large acute tooth, claws not toothed. Length 4 mm. ; .16 inch. California, two specimens found at Lake Tahoe, by Mr. Crotch. Resem- bles in appearance M. stibtinctus and gracilis, but ditfers by the form of the prothorax, and the simple claws. p. 233. After Notoloynus bicolor add. 1-3. Notolomus myricse, n. sp. Of the same size, form and color as the large form of JV. bicolor, but the beak is more strongly and densely punctured. The prothorax is very finely, almost imperceptibly pubescent, more coarsely punctured, with the sides and two small apical spots testaceous : the lateral cusp is prominent as in N. bi- color. Elytra with striae composed of larger punctures ; the dark markings are very distinct, and quite different in pattern : there is a cloudy and ill-de- fined spot behind the scutellum : then an oblique band formed by elongate spots on the 2d, 4th, 6th and 8th interspaces ; then a large apical blotch, occupying one-half the surface, with an oblique anterior outline, parallel with the oblique band ; the pale color extends into this blotch along the 4th interspace for some distance ; this dark blotch includes some small spots of lighter brown, and is also paler at the sides, along which it extends. An- tennae with the 3d joint of the'funicle longer than the 3d. Length 2.1 mm. ; .08 inch. New Smyrna, Florida : one J* kindly sent me by Mr. E. A. Schwarz, who informs me that it is found on a species of myrtle, and is very rare. LeConte.] APPENDIX. 419 p. 225. Modify the table of Conotraehehis as follows : 2. Prothorax not sulcate, usually carinate : I. (A. Beak rather stout, curved, thighs bidentate B. Beak slender, very long, thighs unidentate C. Beak rather stout, curved, thighs unidentate) Division I, — A will remain as defined, but in p. 229 to C. nivosus must be added as a synonym C. j I igiatt.s, p. 233, which is only a poorly de- veloped (^ in which the denticle of the thighs has almost become obsolete, thus causing them to appear unidentate. Division I, — B will contain the species in a and b of the table, on p. 229 ; viz. : cratcBji, adspersus, similis, naso, and 11-12. Conotrachelus Belfragei, n. sp. Of the same form as C. similis, but much smaller ; brown, clothed with brown and fulvous pubescent with a very large white spot each side of the prothorax, and another saddle-shaped one behind the middle of the elytra. Head densely clothed with fulvous pubescence ; beak half as long as the body, slender, very slightly curved, shining, sparsely punctured, substriate and more coarsely punctured on the sides near the base, antennne inserted about the middle. Prothorax wider than long, sides nearly parallel from the base forone-half the length; then rounded and obliquely narrowed to the tip; disc densely and coarsely punctured, with a few white hairs on the medial line, and a very large spot of white pubescence extending from the sides over two-thirds of the surface ; this spot has two narrow prolongations, the anterior one oblique and reaching the apex, the other transverse, nearly attaining the median line. Elytra one-half wider than the prothorax at base, humeri slightly oblique, angulated, but not dentate, sides converging be- hind from the humeral angles ; strioe composed of very large and deep quadrate fovese, almost contiguous, except where separated by elevated crests, of which the 3d interspace has one near the base, a very large one about the middle, and a smaller one behind the middle ; ths 5th, 7th and 9th interspaces are narrow and carinate, and on the 8th there is a small tuber- cle near the tip, clothed with white hair; there are besides two short lines of white pubescence at the base of each elytron. Under surface densely punctured, abdomen with three rows of white spots. Thighs with a broad white ring, and a large acute tooth. Length 4 mm.; .16 inch. Texas, one specimen, Mr. Belfrage. p. 247 to 2. Pseudomus sedentarius add. A specimen was collected at Enterprise, Florida, and kindly sent me by Mr. E. A. Schwarz. It differs from P. truncatus not only by the thighs being unarmed, and by the elytral spot not being narrowed at the tip, but also by the form of body which is elongate and subfusiform, wiiile in P. truncatus it is much stouter, with the prothorax broader than long, and much more narrowed in front. The prothorax and elytra are marked with several small spots of mixed yellow and white scales. Length 4.3 mm.; .17 inch. p. 289. Aulobaris an^hracina, transfer to Pseuiobaris p. 297 and add. The examination of a second specimen in better condition shows that the 420 APPENDIX. [LeConte. claws are approximate and connate at base. It is therefore to be placed next to P. nigrinus, which has the pectoral groove deeper and more sharply defined than in the other species of Pseudobaris. I observe a few white scales at the base of the third interspace, which represent the more conspi- cuous spot seen in the othei's. 1-2 Pseudobaris pectoralis, n. sp. Black, not very shining, oval, subelongate. Beak as long as the pro- thorax, cylindrical, not stout, coarsely punctured on the sides, more sparsely and more finely above, separated from the head by a distinct constriction ; head with a few small scattered punctures. Prothorax as wide at base as the length, rapidly obliquely narrowed in front, scarcely rounded on the sides, moderately constricted near the tip ; base with the scutellar lobe broad and obtusely rounded ; disc coarsely punctured, more densely and somewhat confluently at the sides ; dorsal line indistinct. Elj'tra with deep, indistinctly punctured striae ; interspaces a little wider than the striae, each with a single row of large, deep punctures. Beneath coarsely punc- tured; punctures becoming smaller, but not more distant upon the abdo- men. Prosternum with a broad, deep groove in front of the coxa3, limited b}'^ parallel acute ridges ; claws small, connate at base. Length 4.4 mm.; .175 inch. New Smyrna, Florida ; one specimen, Mr. E. A. Schwarz. This species is related to P. anthracina, but differs by the prothorax more obliquely nar- rowed in front, and less rounded on the sides, and by the deep punctures of the interspaces of the elytra. p. 298. Change P. angusta to angustula ; the former name being pre- occupied in Baris. The pectoral groove is deep and sharply defined as in P. nigrina. p. 303, add. 2. Stethobaris corpulentus, n. sp. Larger, broader and more convex than 8. tuhulatus, shining black. Beak long, curved, not very slender, sparsely, finely punctured above, more coarsely at the sides, separated from the head by an indistinct con - striction ; head' sparsely and finely punctured. Prothorax much broader than long, very much rounded on the sides, and narrowed in front, strongly tubularly constricted near the tip ; disc sparsely and not coarsely punc- tured ; basal lobe broad, short, truncate. Elytra gradually wider for a- short distance, and forming an obtuse angle with the rounded sides of the prothorax, then obliquely narrowed and rounded, entirely covering the pygidium ; striae very deep, impunctured ; interspaces wider than the striae, with a few scarcely perceptible punctures. Beneath coarsely punctured ; third and fourth ventral segments with a single transverse row of punc- tures ; fifth densely, more finely punctured. Prosternum with a broad groove, distinctly limited by acute ridges. Length 3.4 mm.; .13 inch. Tampa, Florida ; one specimen, Mr. E. A. Schwarz. p. 303. The table of Microcholus should read : Prothorax punctured ; constriction near the tip. LeCoiite.] APPENDIX. J 21 Elytra d jeply striate 1. striatus. fiuely sl^riate 2. puneticollis. Protliorax smooth, constriction much deeper and di-stant from the tip 3. laevicollis. p. 308, make the following changes in the table of Centriruxs, divi- sion C : 8. Protliorax very densely punctured; scales yellowish. . . 20. falsus. " less " " 8'. 8'. Pubescence white, scale-like canus. " yellowish, fine and capillary 21 . longuluG. 20-2 1. Centrinus canus, n. sp. Elcmgate, rather depressed, black, shining, tolerably densely clothed with small, whitish scales. B'akas long as the head and protliorax, slender, slightlj' curved, smooth and polished, punctured only at the base. Head finely punctured, frontal impression distinct. Protliorax scarcely longer than wide, gradually slighJy narrowed from the base for more than half the length, then rounded, and more suddenly narrowed to the tip, where it is feebly constricted ; strongly and rather densely, but not confluently punctured, with a narrow, smooth dorsal line. Elytra a little wider near the base, then very slightly narrowed ; conjointly rounded at tip, stri;e deep, interspaces flat, rugosely punctulate, with the scales not arranged in rows. Proslernum transversely impressed as usual, and longitudinally concave ; apical part with a small fovea ; hind margin not emarginate ; front coxae widely separated ; fifth ventral segment longer than the fourth. Funicle of antennae slender ; first joint as long as the second and third united ; sec nd twice as long as the third. Length 4.7 mm. ; .18 inch. Enterprise, Florida; one specimen, Mr. E. A. Schwarz. On p. 317, add. 2. Csntrinus strig-atus, n. sp. Elongate, parallel, brownish black, thinly pubescent with yellowish hairs. Beak cylindrical, rather slender, curved, as long as the heftd and prothorax, dark brown, shining, sparsely and finely punctured. Head sparsely punctulate. Prothorax scarcely wider than long ; sides nearly parallel for half the length, then rounded and obliquely narrowed to the tip, which is strongly constricted ; surface deeply, coarsely and confluently punctured ; the intervals between the punctures form longitudinal plica% as in Onych'ibaris rugkollts, but finer ; medial line smoothly elevated, ex- tending nearly to the tip and base. Elytra not at all wider than the has ; of the prothorax, parallel on the sides for two-thirds the length, then ob- liquely narrowed to the tips, Avhich are very broadly conjointly rounded, and seem almost truncate, though the pygidium is entirely concealed ; stria- deep, finely punctured ; interspaces a little wider than the striae, with single rows of deep punctures, which bear small, reclinate yellow hairs. Beneath strongly punctured. Prosternum deeply, transversely impressed, not fove- ate ; front coxai widely separated ; metathoracic episterna narrower than 422 APPENDIX. [LeConte. usual ; fifth ventral segment as long as the third and fourth united. Antennae with the first joint of the funicle elongate ; second not longer than the third. Length 4.3 mm. ; .17 inch. Colorado ; one specimen, Mr. B. D. Smith. This remarkable species does not seem related to any other in our fauna by form or sculpture. p. 318, add. 3. Zygobaris ? convexus, n. sp. Less robust, but more convex, shining black (sparsely clothed with white scales?) Beak slender, slightly curved, as long as head and prothorax, punctured -towards the base, smooth towards the tip ; basal transverse im- pression distinct. Head sparsely punctulate. Prothorax not wider than long, much rounded on the sides, narrowed and constricted in front, deeply and coarsely punctured, with a smooth, dorsal line, and an indistinct smooth space each side half way towards the sides. Elytra suddenly wider at base than the prothorax ; humeri obtusely rounded, sides converging be- hind ; strife deep, irapunctured, interspaces a little wider than the strise, flat, each with a single row of very small punctures, which probably bore white scales. Beneath strongly punctured, thinly pubescent, prosternum flat, not transversely impressed nor foveate; front coxae not very widely separated. Funicle of antennai stout ; first joint elongate ; second not longer than third. Length 2.4 mm.; .10 inch. Enterprise, Florida ; one specimen, Mr E. A. Schwarz. The scales have been removed by abrasion, and only a few remain near the base of the ely- tra, and the sides and base of the prothorax. The apical constriction of the prothorax does not continue across the prosternum as in tlie other species, and as in all Geiitrinus known to me, but disappears in the apical margin, thus leaving the front part of the prosternum flat. This should probably be considered a generic difference, but I am unwilling to separate it with- out having better preserved specimens for study. The claws seem to be very small, but hardly connate at base. p. 319, add. 2. Barilepton lineare, n. sp. Elongate, black, clothed with small, dirt-colored scales, which on the elytra are scarcely wider than long, obovate, and broadly subtruncate. Beak stouter than B. fiUforme, and more coarsely punctured at base. Pro- thorax densely and deeply, though not very coarsely punctured, with a narrow, smooth, dorsal line. Elytra a little wider than the prothorax at the base, striate and punctured as m B. filiforme. Length 3.8 mm.; .15 inch. Sumter County, Florida ; one specimen, Messrs. Hubbard and Schwarz. Differs from B. filiforme by the larger size, the punctuation of the protho- rax and the form of the scales of the elytra ; the elytra are also evidently, though but slightly wider than the base of the prothorax, and the sides of the latter are suddenly rounded in front of the middle. 3. Barilepton cribricolle, n. sp. Of the same siz3 and form as B. I'neare, but clothed with elongate, white LeConte.] APPENDIX. 423 scales, wliich form white lateral vittse on the prothorax, and discoidal lines on the elytra. Black, beak stout, curved, punctured at base, smooth towards the tip. Prothorax more coarsely but less densely punctured, almost cribrate, sides nearly parallel, rounded behind and obliquely nar- rowed in front of the middle ; dorsal line distinct. Elytra suddenly and more distinctly wider than the prothorax at bass ; striae narrow, deep, im- punctured, interspaces more strongly punctured, white scales denser on the second interval for four-fifihs the length ;upon the fourth there is a short basal line, then a long line extending from one-fourth of the length to three quarters ; on the sixth a basal line extending to one-fourth of the length. Beneath strongly punctured, thinly clothed with white scales, metathoracic episterna and spots on third, fourth and fifth ventral seg- ments densely scaly ; the scales are also gradually more dense on the sides of the first and second ventral segments. Length 3.8 mm.; .15 inch. Enterprise, Florida; one specimen, Mr. E. A. Schwarz. 4. Barilepton quadricolle, n. sp. Very narrow, linear, black, clothed with elongate small 'whitish scales, beak less stout, punctured at base, smooth at tip. Prothorax as long as wide, sides parallel behind, suddenly rounded and narrowed in front of the middle ; strongly and rather densely punctured ; dorsal line smooth, distinct, scales more dense at the sides. Elytra suddenly a little wider than the base of the prothorax ; striae narrow, deep, impunctured, inter- spaces finely punctured, beneath strongly punctured, thinly clothed with small whitish scales. Length 3.2 mm.; .13 inch. Nebraska, one specimen ; given me by Mr. Ulke. I confounded this species with B. JiUforme, which it resembles in the form of the prothorax, but differs by the stronger punctuation and by the elytra being distinctly wider than the prothorax just behind the base ; the scales are also whiter and larger, and the elytral striae are deeper. These four species may therefore be distinguished as follows : Body very narrow, filiform, elytra not wider at base than the prothorax, which is densely but not deeply punctured, scales very small,, gray, denser at the sides of prothorax and elytra 1. filiforme. Body very narrow, prothorax strongly and densely punctured, suddenly narrowed in front, scales of elytra oval, whitish, not very small 4. quadricolle. Body linear, but less narrow, prothorax densely, less coarsely punctured ; elytra a little wider than the prothorax at base, scales very small, rounded, yellow- gray 2. lineare. Body as in lineare, but the elytra are more conspicuously wider near the base, and the scales are elongate, white, and form stripes ; prothorax more coarsely punctured 3. cribricoUe. 424 APPENDIX. [LeConte. p. 330. in Rhyncliophorini add : A specimen of the well-known Ehyiichophorus palmnrum was collected by Mr. Hardy, in Southern California, west of San Diego, and kindly sent to me by Dr. David Sharp. As groves of palm trees are known at several placfs on the eastern slope of the Sierra in that region, it is not surprising that they should be depredated on by this species, which is widely diffused through the Antilles and tropical America. Quid? Rhynchophorus noxius Gyll. Scli iv, 821. Perhaps an im- ported specimen of R. palmarum. p. 331. Add the three following new species of Sphenophorus ; the first belongs to Horn's group IV ; the others to V ; Proc. Am. Phil. Soc. xiii, 412. Sphenophorus velutinus, n. sp. Elongate, brownish black, entirely opaque and velvetj^ in lustre. Beak siiorter than tlie prothorax, curved, somewhat compressed, smooth ; an- tennaj inserted immediately in front of the eyes. Prothorax more than one-half longer than wide, oval, strongl}^ tubulate in front ; the elevations are very vague and ill defined, the impressions are marked with shallow punctures ; sides more densely and more deeply punctured ; dorsal line narrow, slightly elevated, extending nearly to the base and apical constric- tion. Elytra not longer than the prothorax, narrowed behind from near the base ; striae very fine, marked with a few distant small punctures ; two outer strise with more numerous larger punctures ; interspaces flat, obsolete- ly punctulate. Pygidium with a few large deep punctures, beneath sparsely punctured. Front and middle tarsi with the third joint broadly dilated, spongy each side beneath ; third joint of hind tarsi slightly dilated, not wider than long. Length 11 mm.; .43 inch. One specimen, Florida. Very different from all others in our fauna. Sphenophorus variolosus, n. sp. Of the same general form as S. arizonensis, black, somewhat shining ; beak shorter than the prothorax, slightly curved, strongly punctured at base, nearly smooth at tip, which is moderately comiiressed. Autennai inserted immediately in front of the eyes ; head finely and sparsely punc- tured with a large frontal fovea prolonged anteriorly in a channel which extends as far as the beginning of the narrow part of the beak. Prothorax obiong, longer than wide, sides strongly rounded in front, and tubulate at the apex ; impressions and elevations very vague, indicated by the presence of larger punctures in the places where the impressions should be, and of finer punctures on the elevations ; there is a group of large punctures just behind the tubular constriction, and behind these punctures there is a smooth dorsal line extending nearly to the base. Elytra with fine deeply impressed striae, along which are placed at irregular intervals very large shallow pits, through which the striae run, producing a very curious appearance ; interspaces finely sparsely punctulate, not elevated ; the punctures of the outer stride are smaller and deeper ; those of the next LeConte.] APPENDIX. are quadrate and confluent. P^'gidium coarsely punctured ; beneath shining, sparsely punctured; more coarsely on the 5111 ventral, which is impressed near the tip ; flanks of prothorax and middle of abdomen nearly smooth. Third joint of tarsi scarsely broader than second, glabrous be- neath, fringed only at the sides. Length 9.7 mm.; .38 inch. Colorado, one specimen, Mr. B. D. Smith. The presence of the post- apical group of large punctures on the prothorax affiliates this species to C. pl%cidus, which however it does not otherwise resemble. Splisnophorus oblitus, n. sp. Of the same general form as 8. phfid'ii, black, covered with a dirt-col- ored crust. Beak two-thirds the length of the prothorax, stout, slightly curved, more strongly compressed at tip ; punctured at base, smooth at tip ; frontal groove deeply excavated, extending to the base of tlie narrow part of the beak. Anteunte inserted just in front of the eyes. Prothorax more than one-half wider than long, sides parallel for two-thirds the length, then gradually and obliquely narrowed to the tip, which is less strongly tubulate than usual ; surface covered with large, shallow punctures, with the depressions very feebly indicated : the punctures just behind the con- striction are a little denser at the middle, representing thereby the small impression which is distinct in >? phicidas, and nearly obsolete in S. vario- losus ; there is no smooth dorsal line. Elytra with fine striae, very feebly punctured ; interspaces with single rows of very fine punctures, alternately a little wider and more elevated. Pygidium sparsely and deeply punctured. Beneath coarsely punctured on the flanks of the prothorax ; punctures smaller and distant at the middle of the abdomen ; fifth ventral sparsely and very deeply cribrate. Thighs sparsely and rather feebly punctured ; front tibiae distinctly sinuate on the inner side, but not angulate ; tarsi with the third joint not dilated, glabrous beneath, fringed only at the sides. Length 9.6 mm.; .38 inch. Texas ; one specimen, Mr. G. W. Belfrage. This is also to be placed near placidus, to which it has but little resemblance. It also shows a ten- dency towards the comprensivontrin form, in which, however, the beak is not curved, and the front tibise are strongly angulated on the inner side. Sphenophorus cariosus Oliv., Ent. v, 83, 91, pi. 28, 415 ; Horn, Pr. Am. Phil. Soc 1873, 420, cum. synon. Dr. Horn has suggested to me that this species and 8. calloms Oliv., should be united. After careful examination of the specimens in my col- lection, I think this view is correct. Those who are inclined to adopt it will place callosus as the synonym, since it is represented by old and abraded specimens. Sphenophorus sculptilis Uhler, Proc. Acad. Nat. Sc. Phil. 1855, 416 ; Horn, 1. c. 424. With this species should be united as a synonym S. Zew Walsh, Practical Entomologist, ii, 117 ; Riley, Missouri Ent. Report, iii (1871), 59, fig. 32. PKOC AMER. PHILOS. SOC. XV. 96. 3b 42G APPENDIX. [LeConte. p. 331 add the following new genus : TRICHISOHIUS n. g. This genus is founded upon one species, which agrees with Sphenoph- orus, except in the following characters : The inner side of the front and middle coxiB and the middle of the meta- sternum and the first and second ventral segments are clothed with long hair; the thighs beneath, and the tibiiE on the inner side are fringed with long hair ; the genital segment of the (^ projects (as in Ehynchophonts) and is fringed with hair at the tip. The third joint of all the tarsi is slender, not at all dilated or emarginate, glabrous beneath, fringed at the sides, and quite as long as the second joint, which is equal to the first. The prothorax is uniformly punctured, without impressions, but with a narrow, smooth dorsal line, and the elytral striae are deep and crenate ; the interspaces are even, and scarcely punctulate. 1. T. crenatus, n. sp. Black, subopaque. Beak scarcely more than half the length of the pro- thorax, slender, slightly curved, finely punctured, with a very fine longi- tudinal impressed line near the base, which terminates in a small, frontal fovea. Prothorax nearly one-half wider than long, narrowed in front of the middle, and rounded on the sides, tubularly constricted near the tip ; base nearly truncate with the edge acute, and sparsely fringed with yellow hairs ; disc rather densely but not coarsely punctured, more coarsely towards the base, each side of the medial line, where it is feebly impressed ; dorsal line narrow, very distinct, slightly elevated near the base. Elytra at base a little wider than the prothorax, basal angles slightly projecting forwards ; striae deep, crenate, interspaces nearly flat, scarcely perceptibly punctulate ; humeri reddish ; pygidium with the hind part strongly, rather densely- punctured ; apex (^) declivous, smooth, concave ; genital plate prominent, smooth. Beneath shining, strongly but not densely punctured ; punctures larger on the metasternum ; side pieces narrow, parallel ; prosternum very narrow between the coxaj. Length 8.8 mm.; .35 inch. Colorado ; one specimen, Mr. B. D. Smith. p. 365, add as a synonym to Tomicus pini ; T. pallipes Sturm, Cat. 1826, p. 76 ; T. dentatus Sturm, ibid. pi. iv, f. 30. Say's name has priority by one year. p. 357, add as a synonym to Xyloterus bivitatus ; Apate rufitarsisKirhj, Fauna Bor. Am. iv, 193. p. 337, after Oononotus add HIMATIUM Woll. I would refer to this genus, which is fully described by Mr. Wollaston in Trans. Ent. Soc, London, 1868, 461, a small slender reddish-brown opaque Cossonide, thinly clothed with coarse hair. It has all the characters given in the description, except that the hairs are not long, and the antennae are not very pilose and the surface not shining. The more important ones may be recapitulated as follows : LeConte.] APPENDIX. 427 Body narrow, linear, rather flat, sparsely pubescent. Beak parallel, cylindrical, separated from the front by a distinct impression ; eyes rather large, transverse, coarsely granulated, situated on the sides and undcir sur- face of the head, not visible from above. Antenna? inserted about the mid- dle of the beak, short and stout, scape attaining the eyes ; funicle first joint large, 2-7 very short, closely connected, club small, oval, shining, sparsely hairy, annulated only at the tip. Metasternum rather long ; front coxae widely separated, the others still more distant ; tibise with the terminal hook very large ; tarsi rather short, third joint but little wider, somewhat bilobed. The genus has thus far occurred only in Malabar, and PhoUdonotus, which immediately follows it, is found in Borneo. It appears, therefore, to be a third instance of that remarkable distribution which I have pre- viously mentioned in the Heteromerous genera Othnius and Ischalia. 1. H. errans n. sp. Very elongate, reddish-brown, nearly opaque, thinly clothed with coarse yellowish hair. Beak a little shorter than the prothorax, rugosely punc- tured, transversely impressed at the base. Head finely punctured. Pro- thorax more than one-half longer than wide ; widest near the base, sides suddenly rounded behind the widest part, but gradually obliquely nar- rowed in front and nearly straight ; slightly constricted near the tip ; disc rather flat, densely and coarsely punctured, without impressions or dorsal line. Elytra not wider than the widest part of the prothorax, trun- cate at base, scutellum not visible, sides parallel, rounded at tip ; striae deep and broad, punctures lai'ge, quadrate, interspaces very narrow. Body beneath very coarsely punctured ; punctures of ventral segments not smaller. Length 2 mm. ; .08 inch. District of Columbia ; collected by Mr. Ulke. I owe a specimen of this interesting species to the kindness of Dr. Horn. 428 APPEKDIX, [LeConte. APPENDIX II. UNRECOGNIZED SPECIES. 1. Rhynchites virdiseneus Randall, Bost. Journ. Nat Hist., ii, 23. R. coi-pore eloagato viridi-iEueo ; capite subnigro, dense punctulato ; rostro dilatato, supra utrinque sulcato ; thorace geneo, dense et profunde punctulato ; eh'tris viridi-teneis, seriebus vagls punctulatis ; pedibus piceis. Body elongated, brassy. Head darker, profoundly punctured ; front somewhat depressed ; rostrum dilated, especially at tip, which presents a tubercle on each side, an impressed line nearly the whole length on each side. Thorax brassy, densely and profoundly punctured. Elytra green- ish brassy, with profound punctures disposed in irregular lines ; feet in- clining to piceoui. Length about three-twentieths of an inch. Occured at Augusta (Maine\ June. Perhaps allied to the R. mnitns oi Say, but the elytni of that insect are described as cren itestriate. 2. Rhynchites coagrua Walker, Nat. in British Columbia by J. K. Lord, ii, 331. Nigricantecyaiea, aspere punctata ; rostro thoracis longitudine, thoracis lateribus convexis ; elytris latis, lateribus sub-convexis. Blackish blue, roughly punctured. Rostrum as long as the thorax, slightly dilated towards the tip. Tliorax narrow^ed in front, sides convex. Elytra much broader than the thorax and about twice its length ; sides slightly convex. Length 3 lines. Rhynchites humeralis B )h.. Eugenics Resa, Ins. 117. Oblongo-ovatus, modice convexus, niger tenuiter pubescens ; antennis tibiisque ferrugineis ; prothorace confertissime punctulato, lateribus parum ampliato ; elytris crebre punctato-striatis, macula huraerali rufotestacea ornatis. Long, 2 mm.; lat. l^mra. Var. «: elytris rufo-ferrugineis dorso infuscatis. If this species properly belongs to our fauna, it will be readily recognized without the aid of the long description which accompanies the above diagnosis. 3. Polydrosus amarlcanus Gyll., Sch. Cure, ii, 136. "Oblougus. niger opacns, ciuereosquamulosus, fuscoque pubescens ; an- tennis tibiis tarsisque ferrugineis ; thorace pulvinato, confertim punctato ; elytris punctato-striatis, apice acuminatis, in dorso plagiatim nigro-varic- gatis. America borealis, ex musieo Dom. Com. Mannerheim, ad de- scribendum, amice communicatus. Parvus: Sitomi lineelh xmwov . Caput majusculum, subquadratum, supra planum, confertim punctulatum, nigrum, sat dense cinereo-squamulosum ; oculisemi-globosi, nigro brunnei ; rostrum capite paulobreviusetangustius, crassum, p )rrectum, angulatum, supra planum, anterius obsolete canalicu- latum, punctatum, nigrum, squamulosum. AntenuiB longiusculjje, fer- LeConte.] APPENDIX. 429 ruginese, parce pilosse. Thorax parvus, angustus, latitudine fere longior, basi apiceque truncatus, intra apicem late et profunde transversim im- pressus, margine alte elevato ; lateribus parum ampliatus, supra convexus, pulvinntus, conferlim punctatus, niger, sat dense cinereo-squamulosus et fusco-pubescens. Scutellum parvum, rotundatum, nigrum. Elytra antice truncata, thoracis basi duplo latiora, humeris elevatis, fere rectangulatis ; lateribus non ampliata, posterius attenuata, apice conjunctim acuminata, thorace quintuplo longiora, supra in dorso antico parum convexa, punc- tato-striata, interstitiis planis, subtiliter alutaceis ; nigra, fusco-pubescen- tia, squamulis cinereo-albidis, insequaliter vestita, relic^is nempe in dorso plagis variis diflforraibus, nudis, nigris. Corpus subtus punctatum, nigrum, densus cinereo-squamulosum. Pedes mediocres, ferruginei, femoribus cla- vatis, muticis, extrorsum nigro-piceis." Dr. Horn thinks that it may be Ci/phomimus dorsalis. If it be not re- ferable to that species it is unknown to us, and renewed examination of the type will be necessary to confirm the correctness of the generic position. 4. Barynotus granulatus Say, Cure. 12 ; Lee , ed. i, 273. Brown, thorax obtusely granulated, with a pale vitta. Inhabits Indiana. Body dull brown, with short raised hairs ; head im- pressed between the eyes. Thorax with very obtuse granulations, a longi- tudinal, slender, impressed dorsal line in a dull yellowish vitta. Elytra a little elevated on the basal edge ; striae concave, much dilated, punctured ; punctures wide, not very deeply impressed, interstitial lines not so wide as the striae, with hairs ; suture a little pale. Length about one-fourth of an inch. The surface of the thorax exhibits the appearance of obtuse little elevated granulations, and the profile view shows irregular punctures or interrupted rugae. 5. Byrsopages carinatusMotsch., Schrenk's Reisen, Amur. Ins. 168. Closely allied to B. vcntricosus Motsch., ibid., and distinguished only by the gray fasciculated pubescence which clothes the elytra, causing them to appear spotted ; by very slightly elevated ridges, which seem to replace the striee of the elytra, and by the head more strongly punctured ; the latter is reddish, as are also the antenna3 and legs ; the teeth and the spines at the tip of the tibae are longer and more distinct ; the under surface of the body redder and less glabrous ; punctuation not dense but very obvious, and pubescence more developed. Length 4 lines. I have condensed this translation from the remarks in the work cited. The genus is unknown to me and is placed by Lacordaire near Homalorlii- wts. 6. Leposoma californica Motsch., Bull. Mosc. 1845, ii, 105. Elongato-ovata, convexa, punctatissima, pilosa, brunnea, fusco cinereo squamosa ; antennis tarsisque testaceo rufis ; elytrispunctato-striatis. Long. 2^ lin ; lat. 1 lin. California. Neither the generic nor specific description permits its identification. 430 APPENDIX. [LeConte. 7. Phytonomus trivittatus Say, Cure. 12 ; ed. Leo., i, 273. Blackish brown, with numerous scale-like hairs. Inhabits North-west Territory. Bady blackish brown, with numerous robust hairs almost resembling scales, which are longer in three yellowish metallic thoracic vittse, of which the lateral ones are broader and terminate in a spot on the humerus; the vittae and spot are pale brownish cinereous ; antennae rufous ; elytra with large costal spots, interstital lines obsoletely alternating with blackish and pale brown cinereous. Thighs beneath near the tip emarginate ; anterior tibiae a little incurved at tip. Length one - fiftli of an inch. 8. Hylobius stupidus Boh., Sch. Cure, i, 339. Oblongus, niger, opacus, antennis pedibusque nigropiceis, capite crebre rugoso, thorace subtiliter rugoso-punctato, carinato, elytris obsolete punc- tato-striatis, interstitiis confertim granulatis. Habitat in Georgia, Americes septentrioualis. Dom. Hooker ; Mus. Schh. Magnitudo fere H. pi/ieti, sed minus convexus. Caput magnum, crassum, supra convexum, nigrum obscurum, crebre ruguloso-exasperatum ; oculi oblongi, depressi, obscure brunnei ; rostrum capite dimidio longius et angustius, deflexum, crassum, parum arcuatum versus apicem nonnihil arapliatum, nigrum opacum, crebre rugoso-punctatum, carinula media obs^oleta notatuni. Antennae capite cum rostro fere breviores, paulo pone medium rostri insertae, crassae, nigro-picese, griseo-pilosae, clava ovata. acuminata. Thorax latitudine media multo longior, apice truncatus, an- terius nonnihil angastior, coarctatus, lateribus in medio nonnihil rotundato- ampliatus, basi leviter sub-bisinuatus, supra parum convexus ; totus niger opacus, crebre sed nouprofunde rugulosus, pilis rigidis depressis flavescenti- bus, parce adspersus, in medio dorsi carinula abbreviata, sat distincta. Scutellum subtriangulare nigrum opacum. Elytra basi subtruncata aiitice thoracis basi paulo latiora, et illo triple longiora, humeris antrorsum promi- nulis, obtuse angulatis, lateribus inflexa, pone humeros nonnihil ampliata, dein apicem versus sensim angustata, apice ipso conjuuctim obtuse rotun- data, ante apicem callo vel gibbere notata ; supra modice convexa, nigra opaca, striis parum profundis, angustis, obsolete punctatis, pulvere cinereo repletis exarata, interstitiis latis planis, coufertissime subtiliter granulatis, setulis brevissimis pallidis depressis parce adspersa. Corpus subtus nigrum obscurum, setulis flavescentibus discretis adspersum, pectore fortius, ventre tenue punctulatis. Pedas longiusculi, validi, nigro-picei, flavescenti pilosi ; femoribus incrassatis, remote punctatis, omnibus dente crassovalido acumi- natoarmatis ; tibiissubcompressis, rude rugoso-punctatis, intus ante medium ampliatis, subdentatis apice uncinatis ; tarsis elongatis dilutius piceis, sub- tus fulvo-spongiosis. 9. Hylobius assimilis Boh., Sch. Cure, ii, 345. Oblongus, niger, capite profande remote punctato, rostro obsolete cari- nato, thorace angustiore, antice valde coarctato, punctato-rugoso, linea media Isevi, elytris dorso fere planis, punctis oblongis striatis, interstitiis undique granulato-rugosia. Habitat in America boreali, a Com. Dejean missus, Mus, Schh. LeConte.J APPENDIX. 431 Statura fere H. palis, sed nonnihil inajor, capite remote punctato, thorace angustiore, ut et defectu signaturis elytrorum, ab illo mox distinctus. Caput breve, rotimdatum, nigrum, sat profunde minus crebre punctatum ; froute foveola obsoleta impressa ; oculi laterales oblongi, transversi, de- press!, brunnei ; rostrum longitudine thoracis, crassiusculum, teres, parum arcuatum; nigrum subuitidum, a basi ultra medium obsolete carinatum, inter antennas canalicula abbreviata insculptum, totum profunde, minus crebre rugoso-punctatum. Antennae longe pone medium rostri insertse, thorace paulo longiores, crassiusculfe nigro-piceae, clava ovata subobtusa cinereo-pubescente. Thorax latitudine multo longiore, antice valde an- gustatus, coarctatus, lateribus paululum rotundatus, basi sub-bisinuatus, supra minus convexus, nigcr profunde rugosopunctatus, in medio obsolete carinatus. Scutellum parvum, rotundatum, nigrum pallido-pubescens. Elytra antice thoracis basi paulo latiora, et quadruplo longiora, humeris subprominulis, rotundatis, lateribus inflexa, ultra medium linearia, turn apicem versus angustata, apice conjunctim obtuse rotundata, supra parum convexa dorso fere plana ; tota nigra subopaca, striis minus latis, crebre canceliatis, exarata, quarum foveolse oblongo-quadratae, sat profundae. 10. Lixus praepotens Boh., Sch. Cure, ill, 63. Ehynchophorus prmp. Say, Cure. 21 ; ed. Lee, i, 287. Thorax with three vittae. Inhabits Arkansas. Body black, covered with dense prostrate cinereous hairs. Rostrum shorter than the head and thorax ; thorax with three black vittae, extended behind at the scutel. Elytra with double series of punctures ; a black vitta on the middle of each, and a narrower subsutural one. Length more than three-fifths of an inch. This is a fine insect. 11. Lixus poricollis Mann., Bull. Mosc. 1843, ii, 291. Oblongus, niger, pubi grisea dense obtectus, rostro breviore recto carinato, thorace antice parum angustiore, dorso punctis nigris remotis variolosis impresso, basis foveolato, longitudinaliter anguste carinato, utrinque nigro- lineato, elytris subtiliter punctato-striatis, apice singulatum subacuminatis, fusco trilineatis, femoribus muticis. Longitude cum rostro 4-5 lin. ; lati- tude 1|-1^ lin. California ; Mus. Mosq. Ad Stirpis 2dae manip. Imum op. eel. Schon- herr, adnumerandus. 12. Lixus modestus Maun., ibid. Elengatus niger, griseo-pubescens, rostro crassiuscule, modice arcuato, thoracs conico breviore, dorso longitudinaliter excavate, elytris striate- punctatis, dense cinereo-squamulosis, maculis minutis albescentibus re- mote aspersis, apice singulatim subacuminatis, femoribus muticis. Longi- tude cum rostro 5 lin.; lat. 1 1-3 lin. California ; Mus. Mosq. Stirpis 2dae manipulo Imo eperis eel. Schon- herr cellecandus. 13. Lixus marginatus Say, Cure. 13; ed Lee, i, 275; Boh., Sch Cure, iii, 70. 432 APPENDIX. [LeConte. Black, covered with minute cinereous hairs, thorax impressed. Elj'tra, region of the scutel and middle of the base indented. Inhabits United States. Body black, covered with short minute robust recurved hairs, puncaired. Antennte rufous, club dusky. Thorax a little convex each side, behind the middle of the side rectilinear; a little contracted before with an indented line above, more profound near the base, with dilated, confluent, slightly impressed punctures, not deeply sinuated at base, with regular series of punctures. Elytra, region of the scatel indented ; abdomsn dull fulvous behind. Length nearly seven- twentieths of an inch. [Thissp3cies is said to occur on the lower Mississippi and in the Atlantic States. I have not identified it, nor was it known to Gyllenhal, who merely cites Say. ] 14. Tyohius aratus Say, Cure. 26 ; ed. Lee, i, 294. Body entirely covered with pale olivaceous, dense, elongated or rounded scales ; rostrum as long as the head and thorax, linear ; scales like robust hairs ; transversely indented over the insertion of the antennae ; a longi- tudinal impressed line ; tip naked rufous ; thorax with the hair-like scales converging backwards to the dorsal line. Elytra with indented striae, punctures are not visible, with densely imbricated, rounded scales ; mid- dle of the interstitial lines with a series of prostrate scale-like hairs ; thighs unarmed, emarginate. Inhabits Missouri. Length three-twentieths of an inch. Can this be C. penicellus, Herbst? 15. Conotrachelus confinis Fahrteus, Sch. Cure iv, 430. Ovalis, niger, pube grisea parce adspersus ; rostro basi superne, anten- nis, femoribus posterioribus medio, tibiis, tarsisque rufo-testaceis ; thorace ampliato, rugoso-punctato, linea utrinque flexuoa d?nsius griseo-tomentosa ; elytris pone medium late grisso-flxsciatis ; interstiliis alternis modice elevato-costatis, costa iniima pone medium interrupta ; femoribus a3qual- iter bidentatis. Pennsylvania. The long description adds little to the diagnosis, which indicates a species allied to and perhaps identical with C. elejans, p. 228. 16. Rhytidisomus orobinus Schiodte, Berl. Ent. Zeitschr. 1859, 141. Nigro-picaus, unicolor, antennis pedibusque rufis, elytris callo humerali protuberante, interstiliis sulcorum dorsalium angustis, acute elevatis, im- ^bricato-dentatis, lateralium latis, convexiusculis, subltevibus, singulis serie punctorum simplici impressis. Long, f lin." Greenland. I infer from the remarks appended to the diagnosis, that this species differs from the European E. globulus by the smaller size, as well as by the characters above given. 17. Rhynchsenus umbellae Fabr., Syst. El. ii, 450. Nigricans, elytris striatis, scutello albo. Habitat in Carolina, Mus. Dom. Bosc. Statura B. pcricarpii at major et alius. Caput nigrum. Thorax Isevis, nigricans, immaculatus. Elytra LeConte.J APPENDIX. 433 parum pallidiora, striata ; striisante apieem coeuntibus. Scutellum album, at sutura elytrorum oiimiiio concolor. Corpus cinereum pedibus uigris. The description is wortliless, as is indicated by tlie expression tliorax Isevis. The specimen upon wliicli it was based, should probably be re- ferred to BMnoncus pericarinus, p. 284. 18. Baridius californicus Motsch., Bull. Mosc. 1845, ii, 372. Oblongus, subdepressus, niger, punctatus, parce pilosus ; rostro longitu- dine thoracis, tenue, subarcuato ; thorace quadrate, antice angustato ; ely- tris postice subatteuuatis, striatis, striis in fuudo punctatis ; interstitiis subtiliter punctato-striatis. Long. 1| lin. ; lat. 1 lin. II est plus petit que le B. picinmt, dont il se distingue facilement par les elytres faiblement pubescentes. De Californie. 19. Baridius californicus Boh., Eugenics Resa. Ins. 137. Ovatus, modice convexus, nigro piceus, nitidus glaber ; antennis pedi- busque rufo-ferrugiueis ; rostro ferrugeneo modice arcuato, prothorace vix longiore, hoc brevi, sat crebre punctulato, pone apicera valde rotundato- ampliato ; elytris castaneis, .nediocriter punctato-striatis, punctis striarum minus crebris, interstitiis planis, U^vibus. Long, 1| ; lat. 1|. mill. California, San Francisco. The detailed description gives no ftirther char- acters for the recognition of this species. 20. Centrinus pistor Gyll., Sch., Cure, iii, 170. Ins. Nov. 295, {Bal- aninus). Femoribus muticis, niger, griseo-tomentosus, thorace supra scutellum producto, acuto, elytris triangularibus, striatis. Habitat in America sep- tentrionali, (Kentucky). B. cerasorum paullo major. Rostrum dimidii corporis longitudine, tenue, incurvum, Iteve, denudatum, atrum, antennae rostri medio inserta", piceo-nigrse, funiculi articulis 1-2 elongatis, reliquis suba?qualibus, cylin- dricis. Thorax latitudine postica parum brevior, lateribus a basi ultra medium sensim, tunc apieem versus subito angustatis, basi subtruncatus, supra scutellum triangulariter productus, acutus, griseo aut fulvo, dense to- raentosus. Scutellum rotundum tomentosum. Coleoptera triangularia, abdo- mine brevioria, striata, fulvo aut griseo-tomentosa. Pectus et abdomen albo-squamosa. Pedes nigri, griscio-tomentosi, femoribus parum clavatis, muticis. The reference to Centrinus seems to me doubtful, in view of the exjires- sion Colcopfera abdomine brcviora. I have seen nothing that could be properly referred to this description. 21. Centrinus ? dilectus Harris, Trans. Hartford Soc. Nat. History 80, pi. 1, fig. 4. Punctured, and with brassy scales ; scutel whitish, third joint of the an- tennae twice as long as the fourth. Length, exclusive of the rostrum twenty-hundreths of an inch. Halsey's collection, No. 165. Body piceous black, densely punctured, and with elongated brassy -j^ellow scales. Head retracted to the eyes with- in the thorax, indented at the base of the rostrum. Rostrum as long as PROC. AMER. PHILOS. SOC. XV. 96. 3C 434 APPEI^DIX. [LeConte. the head and thorax, slender, ahnost filiform, arcuated, slightly dilated over the origin of the antennae, piceous, minutely and remotely punctured. Antennae inserted behind the middle of the rostrum, piceous, club rufous ; third joint (second of the funiculus), two-thirds the length of the preced- ing, and twice the length of the following joint, Thorax in the middle, longitudinally elevated, or almost carinated, covered with linear-lanceo- late scales, which converge from the sides towards the central carina. Ely- tra with acute, remotely punctured stria-, and flat interstitial lines, each one of which is covered with large superticial confluent punctures, and three or four series of linear-lanceolate scales ; an oblique elevation or callus before the tip of each elytron. Body beneath more densely covered with whiter, shorter oval scales. Breast, before the anterior legs, widely indented, not canaliculate, unarmed. 22. Balaninus porrectus Boh., Sch. Cure, vii, 2d, 292. Ovatus, niger, squamositate griseo-olivacea dense tectus ; rostro tenui, longitudine elytrorum, subrectc ; thorace angustiore. confertim punctulato, intra apicem constricto ; elytris tenuiter punctato-striatis, interstitiis planis subtiliter coriaceis ; femoribus anticis obsolete dentatis, posterioribus muticis. Missouri, Americae borealis, Dom. Say, Mus. Sch. Biilanino cerasorum vix latior, sed nonnihil longior. Caput parvum, subglobosum, subtilissime punctulatum, nigrum nitidum, glabrum ; oculi subrotundati, depressi, nigri ; rostrum longitudine elytrorum, tenue, cylin- dricum, subrectum, piceo-nigrum vix punctatumbasi griseoolivaceo-squa- mosum. Antennae thoracis medium attingentes, piceae, parce pilosae ; clava parva, ovata, subobtusa. Thorax latitudine postica fere longior, apice trun- catus, anterius nonnihil angustior, intra apicem constrictus, lateribus paulo rotundato-ampliatus, basi bisinuatis, supra convexus, subtiliter crebre punc- tulatus, niger, squamis depressis griseo-olivaceis dense vestitus. Scutellum parvum, subtriangulare, nigrum, dense griseo-squamulosum. Elytra an- tice subtruncata, thoracis basi. nonnihil latiora, humeris vix elevatis, obtuse rotuudatis ; lateribus non ampliata, apicem versus angustala, apice con- junctim obtuse rotundata, thorace duplo longiora, supra parum convexa. tenuiter punctato-striata., interstitiis planis, subtilissime coriaceis ; nigra, squamulis depressis, griseo-olivaceis, dense vestita. Corpus subtus subtiliter crebre punctulatum, nigrum, squamulis tenuioribus, cinereo-albidis undique sequalirer obsitum. Pedes validiusculi, rufo-picei, cinero-squamulosi ; femoribus clavatis, anticis obsolete dentatis, posterioril)us muticis, tibiis tere-tibus, rectis. The reference to this genus seems to me doubtful, especially as the species is immediately followed by B. consiricUis, which has no resemb- lance to Balaninus, but is an Erivldnine (p. 168). It is quite possible, that this insect, on renewed study of the type in Stockholm, may prove the same as my Desmoris scapalis, which is congeneric with D. constrictus. 23. Brenthus peregrinus Herbst, vii, 190, pi. 108, f. 1. This is evidently a species from Tropical America, either with an in cor- LeConte.l APPENDIX. " 435 rect locality, or accidentally introduced. It is therefore, unnecessary to reprint the description. In the Munich Catalogue, 2713, it is cited as a synonym of B. anrhorago. $ 24. Cossonus californicus Motsch., Bull. Mosc. 1845, i, p, 99, No. 228. "Niger, glaber, subdepressus ; rostro breviori, crassiori, apice modice dilatato, basi obsolete foveolato ; antennarum articolo breviori (sic); tliorace oblongo, profunde punctato, medio distincte longitudinaliter biimpresso, elytris profunde punctato-striatis. Long. 3 lin. ; larg. § lin." He says that it resembles C. pinipMlus, but is much smaller and easily recognized by the stouter and shorter antennae, and by the two longitudi- nal impressions at the middle of the thorax. 25. Pityophthorus cribripennis Eichhoflf, Berl. Ent. Zeitschr. 1868, 274. Elongatus, cylindricus, thorace oblongo, lateribus subrectis, postice minus profunde punctato, linea media Itevi ; elytris ad suturam indigeste (extra striate-) punctatis, declivitate postica ad suturam utrinque sulcata, sutura subelevata, margineque laterali subtilissime granulatis, angulo api- cali acutiusculo. Long. 1 lin. Patria ; America septentr. 26. Pityophthorus bisulcatus Eichhoff, ibid. 1868, 274. Elongatus, cjiindricus, thorace oblongo-ovali lateribus subrotundatis, postice vage subtiliter punctato, linea media la;vi ; elytris subtilius striato- punctatis, punctis, dilatatis, interstitiis inde angustioribus subrugulosisque ; declivitate postica ad suturam utrinque sulcata, sutura valde elevata mar- gineque subcalloso subtiliter granulatis, angulo apicali acutiusculo. Long. ^ lin. Patria : America borealis. 27. Pityophthorus pulchellus EichhoflF, ibid. 1868, 275. Oblongo-elongatus, thorace breviter-ovali, postice fortiter ruguloso-punc- tato, linea media Isevi ; elytris striato-punctatis interstitiis subrugulosis ; decliviate postice ad suturam utrinque sulcata, sutura subelevata margine- que laterali subtiliter granulatis, angulo apicali acutiusculo. Long. :| lin. Patria : America septentr. 28. Tomicus oregonis Eichhoflf, Berl. Ent. Zeitschr. 1868, 274. Oblongus cylindricus nitidus, thorace subquadrato, postice profuudius punctato ; elytris subtiliter striato-punctatis, interstitiis internis basi Isevi- bus ; elytris apice oblique truncatis, truncatura excavata circulari, spatio nitido punctato, margine apicali prolatato, laterali utrinque 4-dentato, deute tertio coarctato majore, secundo valido acuto. Long, 2 lin : Amer. bor. (Oregon). 29. Tomicus perturbatus Eichh. 1. e. 274. Oblongus, cylindricus, subnitidus, thorace breviter ovato, postice fortiter punctato ; elytris subcrenato-striatis, stria suturali profuudiore pone medium fortiter ruguloso-punctata, interstitiis convexiusculis lasvibus, apice oblique truncatis truncatura excavata spatio punctato nitido, margine laterali utrinque 4-dentato, dente tertio majore, a primo minimo remoto ; margine apicali longe elevato. Long. 2j lin. Amer. bor. 436 APPENDIX. [LeConte. 30. Phloeosinus Haagi Chapuis, Mem. Soc. Roy. Sc. Liege, 1869, 94. Dendroetonus Haagi Eicbhoflf, Berl. Ent. Zeitsclir. 18G8, 148. Breviter ovatus, subopacus, piceus, nonnunquam autennis tarsis et ely- tris bninneis, pube brevi flava vestitus ; capite crebre ruguloso-punctato, inter oeulos spatio nitido, apice carinato ; protborace latitudine basis bre- viori, a basi ad apicem angustato, sat dense fortitei' punctato, linea media angiista elevata, a basi ultra medium producta ; elytris anguste striato- punctatis, striis vix punctatis, interstitiis rudibus, sat dense minute granu- latis, in declivitate seriatim tuberculatis, Imo. et 3io subconvexioribus. Long. 2h mill. : Am. bor. 31. Phloeosinus graniger Chapuis, ibid. 95. Bi'eviler ovatus, subopacus piceus, elytris et pedibus brunneis, antennis flavis, pube brevi flava dense vestitus ; capite crebre punctulato, apice carinulato ; protborace latitudine basali.breviori, a basi ad apicem angusta- to, dense et fortiter punctato, linea media a basi ultra medium elevata, sub- Isevi ; elytris striato-punctatis, inteistitiis dense granulato-rugulosis, in de- clivitate seriatim tuberculatis, Imo. etSio convexioribus, tuberculis majori- bus ornalis. Long. 2 mill. Texas. LeConte.j APPEN^DIX. 437 APPENDIX III, Corrections to the Munich Catalogue, 2187. Liophloeus inquinatus Mann, is Lophalophus. 2219. Tanymecus leucophseus Cyll. is T. lacaena (^ p. 84. 2271. Tyloderes g-emmatus Lee. is Phymatinus. 2282. Peritelus sellatus Boli. is Paraptochus. 2286. Ptochus adspersus Boh. is Neoptochus. Ptochus globiventris Lee. is Peritelopsis. 2287. Ptochus saccatus Lee. is Mylaeus. 2288. Trachyphlceus melanothrix Kirby is Geoclerces. 2289. TrachyphlcBus squalens Lee. is Thinoxenus. 2315. Ophryastes tessellatus (Say) is Aramigus. 2359. Listroderes. Some of these are Listronotus, and otliers are 3Iacrops. 2424. Ourculio tseniatus Lcc. is Plinthodes. Curculio torpidus Lee. is Noeheles. 2435. G-rypidius vittatus Couper, is Sitones tibialis. 2436. Erirhinus ephippiatus Say is Alyca. 2482. Attelabus scutellaris Say is Piazorhinus. 2496. Balaninus constrictus Say is Desmoris. 2503. Anthonomus tessellatus Walsli is Doi-ytomus. 2541. Conotrachelus cristatus Fahraeus, iv, 438 ; a "West Indian species not Ivnown to occur in the United States. 2610. Oeutorhynchus umbellae Fabr. \s perimrpius. 5621. Baris. The species in my synopsis, Pr. Acad. Nat. Sc. Phila., 1868, 361, are not cited. 2650. Sphenophorus praepotens Say, is Lixus, as is indicated by the pubescence of tlie surftxce, (v, p. 431). 2672 & 3. Haagi and granig-er Eich., appear under two genera, Dendroetonus and Phlceosinus. 2673. Hylesinus aculeatus Say, is incorrectly referred to Dendro- sinus and D. globosus is placed as a synonym. 2681. Aphanarthrum pumilum is Dolurgus. 2695. Scolytus muticus Say, dele^the reference to Chapuis. 2749. Araeocerus fasciculatus. Anthribus moestus Lee, is not a synonym of this species, but belongs to Piezocorynus. 438 APPENDIX. [LeConte. APPENDIX IV. The following bibliography of the memoirs relating to Economic Ento- mology of the Rhynchophora of the United States, has been prepared at my request by Mr. B. Pickman Mann, of Cambridge, Mass. It will be an invaluable addition to this volume, for all who desire to study the habits of these insects : a prerequisite to any rational enquiry into the means to be adopted for the suppression of the noxious species. Such a study has been heretofore almost impracticable in this country, in consequence of the large number of undescribed species, and the scattering of the descriptions of those which have been named in a multitude of vol- umes, many of which can only be obtained with much labor and great cost. For the proper use of the tables, certain explanations are necessary. I. The subjects mentioned in the articles cited are indicated as follows : b. benefits. d. description. /. food, h. habits. i. injuries. I. localities. r. remedies. s. seasons. t. transformations. II. The * after a reference indicates that the article is illustrated with a figure of the insect in question. Name, abietis. Hyloblus anipelopsldis. Madams analis. Attelabns bicolor, Rhynchites bipustulatus. Atteiabus calligraphus. Tomicus carbonarius. Hylastes caryse, Scolytus cerasi. Rhynchsenus coffese. Arseocerus cratsegl. Conotrachelus dentatus. Hylurgus destructor. Hylesinus " Scolytus exesus. Tomicus fragari 11 5 171 3 2 105 14 6,5-66* 14 66 14 66* 22 4 143-145 16 17 721-722 16 17 730 17 6 ia3-108* 11 2 282 11 5 171 11 7 81-82 14 78 22 5 156 10 2 81 10 2 120 17 3 35-39* 14 87 16 17 750 11 5 169-171 ) 169-171/ 11 5 14 87-88 17 3 42-14* 11 4 228 11 7 62-63 3 1 179 14 83 14 70* 11 5 171 10 2 81 17 3 58* 3 2 52 17 1 128-129* 21 1 13-21* 14 88 16 16 356-357 16 16 326-327 16 17 726-728 17 6 113-117* 3 2 207 14 74-75 Subject, f i df i d h s df i s d h dfh St d f h i s d s d f h i 1 r s t d f h i 1 St 'Curculio nenuphar" d f h i r s t Conotrachelus nenuphar'' il f f 1 df hllrst dfh s dfhi fhi r dfhi 1 s d f h i 1 r s t b f i dfhi df df f df f s f il St df h 11 r s df s df i s df il d fhi 1 dfhi t dfh s il il LeConte.] APPEISTDIX. 439 M Name. o 4 o Page. Subject. nenuphar. Conotracheius 3 3-4 r " 3 11-13 f hi r s ' 3 32 f I " 3 33 r " 3 31-36 il r 3 56 r " 3 80 h s " 3 92-93 f r 3 156 h " 3 161 r 3 18:3 r " 3 202-218 r " 3 217-221 h 3 220-241 r " 3 226 r " 3 2:^9 hi rs 3 244 h " 3 252 f 3 2 53 r ' 3 2 56 r 3 2 119-121 h 3 2 130-137* d fh i r St " 3 2 165 r " 3 2 169-170 r 3 2 225-227 h r s " 3 2 268-271 r " 3 2 274 r 3 2 276 f " 3 2 336 f 1 3 2 338 r i( ti 10 1 6 general ' 10 2 29-30 general 10 2 31 f rs 10 2 71 r ^^ 10 1 74 (worthless) r 10 2 75-81 (1 f h i r s 10 2 97 r " 10 2 114-115 h 11 2 69-70 fhi r t " 11 6 405-106 f h i r s t " 11 7 291 f h r s " 11 8 17-18 f h i 1 r s " 11 8 382 r 11 9 1.53 f r " 11 9 a56 fh rs " 11 9 393-394 fhi r s 11 9 405 f i 11 9 413 fh r " 11 10 405 h 11 10 411 1 " 11 11 1 h (worthless) 11 16 349 fh r t " 11 16 389 1 r " U 75-81* df h i rst 16 16 347 f i ' " 16 16 349-352 fhi rst " 16 16 a59 f i " " 16 16 - 360 f " 16 16 365 dfh i " " 16 16 387 f " " 16 16 461 f i ' " 17 1 50-62* f h r s " " 17 3 11-29* fh Irs " " 21 1 64-72 dfh Irs " " 22 2 137-139* fh r " " 22 3 12,26* r " Curculio 11 5 171 f i noveboracensis. Ithycerus 3 1 221-222* df h ilr 3 2 176-177 fhi s 3 2 246 f i 10 2 81 f il 10 2 107 f ilr 16 16 331 dfhi s 17 3 57^8* dfhil MO APPEI^DIX. [LeConte. Name. O 4 o ;> Page. Subject. oryzse. Sitophilus ~7J 83-84* d f h i 1 r s pales. Hylobius i^i 70-72* d f h i 1 s picivorus. Hylobius 16 17 731 dfh pini. Curculio 11 5 171 f hi 1 " Tomicus 14 88* df il s " n 16 17 722-723 dfhi " " IG 17 751 f h i pinifex. Hylastes 16 17 729-730 d h posticatus. Conotrachelus 10 2 81 f pruiiicida. Authonomus 3 1 H fh rs " " 3 1 93 f " " 10 2 79-80 dfh Irs " " 17 3 39-42* d f h i 1 r s " " 21 1 72-78 dfhil s pubescens. Attelabus 16 16 475-476 d f h i s pulchelius. Sphenophorus 17 3 60* dfh s puncticollis. Conotrachelus 10 2 81 f il pusillus. Tomicus 16 17 724-726 dfhi pyri. tScolytus 11 5 1-2* dfhi r s t '* i* 11 5 6 f i " " 11 5 17-18 f i r *' u 11 5 22 f i ** *' 11 5 25-26 f i '* " 11 5 38 f *• " U 5 38-39 f i ** " 11 5 41 f i r '* " 11 6 50-61 f i " " 11 5 113 f i (4 (( 11 5 171 f i r " " 11 8 401 dfhi rs *' ** 11 9 6 f i " " 11 9 21-22 f i " " 11 9 35 f i '• " 11 9 137 f i r " " 11 9 361 f i r " " 16 16 327-528 f hi " " 16 16 330 fhi " " 16 16 353-354 d f i s " " 16 16 360 f i s " Tomicus' 14 88-91 d f h i 1 r s t quadrigibbus. Anthonomus 3 1 36 f i " " 3 2 227 d " " 3 2 243* d <( i( 3 2 306 fh 1 " " 10 2 80-81 d fhi Ir " " 17 3 29-85* d f h i 1 r s t rectus. Balaninus 16 16 476-477 dfhi robustus. Balaninus 10 2 81 f il sayi. Apion 14 67* df i Scolytus spp. 10 2 57-58 df '* " 11 5 66 f i " " 11 5 302-303 i r septemtrionis. Brenthus 14 67-69* dfhil St sesostris. Baridius 3 2 104-106* df i strobi. Pissodes 3 2 26* f i Ir s " " 14 71-73* dfhi r s " " 16 17 732-736* d f h i 1 r s t " Rhyncheenus 11 5 171 f i " Rhynchcenus 10 1 20 d f i 1 r s stupidus. Hylobius 3 2 61 f suturalis. Anthonomus 3 1 79* f i r " " 12 487-488 dfh s sycophanta. Anthonomus 3 2 46 dfhi St terebrans. Hylurgus 14 84-86* dfhi St " " 16 17 728-729 d fhi s " Scolytus 11 5 171 d trinotatus. Baridius 3 1 22-23* dfhil St " " 14 81-82* dfhil St " " 17 1 93-95* dfhilrst typographus. Bostrichus 11 5 170 i 1 vitis. Madarus 17 1 131-132* dfhi St xylographus. Tomicus 16 17 716-721 dfhil s t^ zese. Sphenophorus 10 2 117-118 d!fhil " " 17 3 59* 1 dfhil LeCoute.J APrENDIX. 441 Works cited in the foregoiiuj List. 3. American Entomologist, Vol. I-II (all). 10. Practical Entomologist, Vol. I-II (all). 11. New England Farmer, Vol. I-XVII. 13. Packard's Guide to the Study of Insects (1869). 14. Harris' Insects Injurious to Vegetation (18G2). 15. Fitch's Reports on Insects of New York. Nos. 1, 2, 6-9 {contain nothing on Bhynchophora). 16. Transactions of the New York State Agricultural Society, Vol. XVI -XVII (containing Fitch's Reports, Nos. 4 and 5). 17. Riley's Reports on Insects of Missouri. Nos. 1-8 (all to date). 21. Walsh's Report on Insects of Illinois. No. 1 (all). 22. Canadian Entomologist, Vol. I-V. It will be seen that I have not examined the New England Farmer, Vol. XVIII etseqq.; Fitch's Reports, Nos. 3, [4, 5,] 10, et seqq.; Trans. N. Y. State Agric. Soc, Vol. I-XV, XVIII, et seqq. The examination of the New England Farmer, from the beginning of Vol. LIII ; of the Canadian Entomologist, from the beginning of Vol. VI, and in general of all entomological literature pertaining to North America from the beginning of the year 1874, is taken up in detail in Psyche, the organ of the Cambridge Entomological Club.* References to Titles in the Bibliographical Record of Ptsche, Vol. I. Araeocerus cofFeae. No. 147 b. Calandra oryzae. No. 290 /. Conotrachelus nenuphar. Nos. 37, 146 ;, 149 n, 161 o, 237 o, 310, 881 d, 535 b, 539. Clonus scrophularise. No. 414. Curculionidas. No. 202. Eupsalis minuta. No. 39. Hylobius pales. No 168 Lixus rubellus. No. 695 Magdalinus 5 pp. No. 646. Pissodes strobi. No. 168. Rhynclisenus nenuphar. No, 38. Rhynchophora, Nos. 143 i, 265, 292, 321, 570, 607. Additional Refer etices. (Mostly quoted without verification). Analcis fragariae. Maine Farmer, July 25, 1867. [17 : 3 : 43]. Anthonomus prunicida. Prairie Farmer, June 13, 1863. [17 : 3 : 39]. March 19, 1864. [21 : 1 : 76]. ♦Published in monthly Nos. by the Cambridge Entomological Club, Cam- bridge, Mass. PROC. AMER. PHILOS. SOC. XV. 96. 3d 442 APPENDIX. [LeConte. Baridius 5 pp. Proc. Acad. Nat. Sci. Pliilad., Dec. 1868 [3 : 2 : 105]. " Sesostris. Missouri Agricultural Report for 1868, p. 131-132 (1869). Gall ( Vitis vulw/s) described without name. [3:2: 104]. Baridius trinotatus. New England Farmer, ser. 2, Vol. II (1850), p. 204. Oalandra granaria. New Engl. Farmer, Vol. XIX. (1841). p. 300. Coeliodes inaequalis. Transactions of the Illinois State Agricultural Society, Vol. I. (1853) p. 340, New York Tribune, Oct. 29, 1867. [21 : 1 :13]. Conotrachelus nenuphar. New Engl. Farmer, Vol. XIX (1841), p. 405* ; ibid., XXII (1843), p. 13 ; ibid., ser. 2, II (1850), p. 252 ; Boston Cultivator, Vol. XIII (1851), No. 24; Downing's Horticulturist, Vol. VI, p. 341 ; Trans. Illin. State Agric. Soc, Vol. II (1855), p. 48. [21 : 1 : 64]; ibid., 1867, 113-114 [ 17 : 1 : 51] ; Prairie Farmer, July 27, 1867 [17 : 1 : 51] ; ibid., July 16, July 23, Aug. 27, 1870 [17 : 3 : 30] ; Tilton's Journal of Horticulture, June 1868 [3:2: 276] ; Report of the Alton (Ills.) Horti- cultural Society for July 2, 1868 [3:1:3]; Journal of Agriculture, Oct. 13, Nov. 10, Nov. 17, 1870 [17 : 3 : 30]. The Ourculio, by James Tilton, M.D., Georgick papers for 1809, Mass. Soc. Promot. Agric, p. 15-19. The Curculio, by James Allen, Am. Quart. Journ. Agric, (1846), Vol. IV., p. 127-128. Address on Curculio, by Asa Fitch, M.D., 1860. [21 : 1 : 65]. Essay on the Curculio, by E. S. Hull, M.D. [3:2: 276]. A Treatise on the Insect Enemies of Fruit and Fruit Trees [etc.]. By Isaac P. Trimble, M.D. New York, Wood, 1865, 4 to pg. 139. The Cur- culio and Apple Moth. [10 : 1 : 6]. Epicaerus imbricatus. Prairie Farmer, July 18, 1863. [10 : 1 : 31]. Ithycerus noveboracensis. Trans. New York State Agric. Soc, Vol. XIII (1854), p. 188-189. Madarus vitis. Trans, Illin. State Hortic. Soc. for 1867. [17 : 1 : 131]. Rhynchaenus cerasi. Massachusetts Agricultural Repository and Jour. Vol V, (1819), p. 307-313, pi. 1. Rhynchaenus strobi. ibid., Vol. IV. (1817), p. 205-211, pi. 2. Scolytus caryae. Prairie Farmer, Feb. 2, 1867 [10 : 2 : 58] ; Aug. 10, 1872 [17 : 5 : 105]. Scolytus P37Ti and strobi. Mass. Agric. Rep. and Journ., Vol. IV, (1817), p. 205-211, pi. 2. Tomicus eruditus (Westwood), Scudder, Proc. Bost. Soc. Nat. Hist., 10, p. 13-14 (1865). Mentions that a volume in the Boston Athenaeum had been attacked in a manner similar to that described by Professor Westwood. No specimens found. Tomicus pyri. Massachusetts Ploughman, Vol. II No. 38, June 17. 1843 ; New Engl. Farmer, Vol. XXII (1843), p. 21 ; Downing's Horticul- turist, Vol. II, p. 365-367. INDEX. Page. Acallesbasalis 241 carinatus 242 clathratus. 242 clavatus 243 crassulus 244 fasciculatus 254 granosus 243 longulus 244 nobilis 241 nuchalis 244 pectoralis 245 pictus 254 porosus 242 scabrosus 243 sordidus 243 turbidus 242 Acallodes ventricosus 272 ACAMPTI 238 Acamptus rigidus 239 Achrastenusgriseus 98 Acmajgenius hylobinus 118 Acoptus suturalis 264 Agasphferops nigra 25 AGRAPHI 58 Agraphus bellicus 59 leucophceus 59 Agronus cinerarius 64 deciduus 64 Allandrus bifasciatus 396 Allomimus dubius 339 ALOPHIDM 115 Alophus alternahis 119 constricius 119 didi/mus 119 seriatus 119 Alyca ephippiata 209 Amaurorhinus 341 Amnesia alternata 52 decidua 52 decorata 50 elongata 53 granicoUis 50 rauca 51 sordida 52 ursina 51 Ampeloglypter ater 300 crenatus 300 Sesostris 300 443 Page. Analcis cereus 248 foveolatus 248 fragarice 248 morhillosus 247 variegaius 248 Ananietis grisea 43 Anchodemus angnstus 181 Hubbardi 181 Schvvarzi 182 Anoniadus obliquus 20 ANTHONOMINl 193 Antlionomus afflnis 207 ater 198 bisignatus 199 brunnipennis 198 calceatus 210 canus 207 corviilus 201 cratcegi 205 decipiens 206 disjunctus 204 elegans 202 elongatus 204 erytfiropterics 200 flavicornis 201 ■fulvus 197 gularis 197 hirlus 203 inerinis 203 juniperinus 199 mixtus 200 morulus 201 musculus 200 nanus 207 nebulosus 197 nigrinus 201 nubilus 205 pauperculus 204 profundus 198 prunicida 194 pusillus . 202 quadrigibbus 197 robustulus 205 rubidus 199 ruflpennis 200 ruflpes 204 scutellaris 194 scutellatus los 44i INDEX. Page. Anthonomus signatus 199 squamosus 202 subfasciatus 205 subvlttatus 203 sulcifrons 201 suturalis 200 sycophanta 200 lectus 203 tessellalus 166 ungularis 206 ANTHRIBI 399 ANTHRIBIDJE 391 Anthribus albifrons 404 alternatus 405 capiUicornis 407 coffece 407 collaris 6 coronatus 403 cornutus 403 fascicularis 403 fasciatus 395 limbatus 406 lividus 403 lunatus 404 mceatus 402 nigripennis . 5 notaius 404 quadrinotatus 395 tomeniosus 406 variegatus 406 Anthribuliis rotundatus 407 Aomopactus 94 Apate bivitata 357 brevicornis 376 nigrice.ps 375 ruflpennis 376 rufltartils 426 APIONIDjE. 409 Apion 410 AphanartJirum pumilurn 387 APHRASTI 9S Aphrastus taeniatus 99 unicolor 99 Apleurus quadrivlttatus 150 Apoionms ovatus 9 Aracanthus pallidas 110 AR^OCERINI 407 Arseocerus cuffece 407 fasciculatus 407 Aragnomus griseus 72 Aramigus Fulleri 93 tesselatus 93 Arhynchus tonientosus 211 Arrhenodes septemtrionis 325 ARRHENODINI 325 ARTIPI 01 Artipus floridanus 92 Page. ATTELABID^E. 9 Attelabusanalis lo bicolor 7 bipustulatus 11 forniicarius 327 genalis li hirtus 7 nigiipes 11 ovatui 9 pubescens 11 rhois 11 sciUeUaris 210 similis 10 Auletes ater 4 cassandrse 4 nasali.s 412 subcoeruleus 5 Aulobarisanthracina 289,419 ibis 2«9 naso 289 scolopax 289 Bagous cereus 248 americanus 185 bituberosus 188 californicus 187 cavifrons 186 egeniis 183 magister 186 mammillatus 184 nebulosus 186 obliquus 185 planatus 185 pusillus 187 restrictus 187 sellatus 184 simplex 183 transversus 188 BALANINID.S 322 Balaninus constrictK.s- 168 porrectus 322, 4.34 pistor. 309 BARIDES 285 Baridius cereus 293 angustas 298 anthracinus 289 calilbrnicus 433 californicus 1 433 carinulatus 292 conflnis 293 densus 295 distans 296 farctus 297 ibis 289 interstitialis 293 tnacer 294 mucoreus 288 nasutus 289, 314 I^TDEX. 445 Page. Baridius nigrinus 2iW ovatus 303 penicellus 308 picumnus 311 plumbeus 288 pubescens 308 pitsillus 208 quadratus 201 scolopax 289 scutellum- album 308 seriatus 296 Sesostrls 300 sparsus 293 strenuus 290 striatus 291 subceneus 292 subovalis 291 T-signwm 299 transversus 291 trinotalus 288 tumescens 292 vestitus 288 unibilicaius 291 BARINI 284 Barilepton cribricoUe 422 flliforme 319, 422 lineare 422 quadricoUe 423 Baris eerea 293 carinulata 292 conflnis 293 interstitialis 293 macra 294 nitida 292 pruinosa 294 sparsa 293 strenua 290 striata 291 subfenea 292 subovalis 291 transversa 291 tumescens. 292 umbilicata 291 Baropsis cribratus 259 BABYNOTI 22 Barynotus erinaceus 42 granulatus 429 rigiduJi 56 SchOnherri 22 BASITROPINI 398 Bathyrisdispar 109 Blastophagus piniperda 386 Borophlaeus minor 338 Bostrichus affaber 361 avidms 366 cavifrons 357 concinnus 367 I'agi. BostrMius cxesiLs 363 fasciatus 348 flavicornis 343 frontalis 377, 386 inlerriiptun 366 nitidulus 354 parallelus 344 pini 364, 365 polilus 358 semicastaneufs 361 septentrianalis 369 tridens 366 xylographus 360 Bracliybamus electus 178 inceratus 178 Brachycerus humeralis 12 BRACHYDERINI 16 BRACHYPI 180 Brachystj'lus acutus 91 BRACHYTARSI 404 Brachytarsus alternatus 405 brevis 406 griseus 405 limbatus 406 plumbeus 406 sticticus 406 tomentosus 406 variegatus 406 vestitus 406 Brachythpsus lautus 90 BRENTHID.^ 323, 325 BRENTHINI 327 Brenthus brimneus 325 distans 325 formicariiis 327 lucanus 327 maxillosus 325 peninsularis 327 peregrinus 434 septenitrionis 325 BrucJius cacao 407 BYRSOPIDyE 11 Byrsopages earinatus 429 Cactophagus valid us 332 CALANDRIDJE 328,330 Calandra granaria 333 oryzEe 333 remotepunctata 333 sericea 331 CALANDRINI 332 Calandrinus grandicollis 305 CALYPTILLI 26 Calyptilluscryptops , 27 Campylorhynchus tubrdatus 303 Carphoborus bicristatus 384 bifurcus 383 simplex 383 446 IN^DEX. Page. Caulophilus latiuasus 340 CENTRINI 301 Centrinus calvus 3U canus 421 capillatus 311 concinnus 316 conflnis 317 confusus 316 decipiens 313 dilectus 309, 43;3 falsus 315 griseus 312 holosericeus 308 Ifevirostris 309 lineellus 312 llneicoUis 313 longulus .316 modestus 310 nasutus 314 neglectus 310 oUvaceus 311 penicellus 308 perscillus 310 perscitus 312 picumnus 311 pistor 309, 4&3 prolixus 317 punctiger 314 punctlrostris 309 rectirostris 315 scutellum-album 308 striatirostris ;309 strlgatus 421 miior 311 Centred eomus angularis 146 molitor 146 pilosus 145 porosus 146 Oercopeus clirysorrhceus 77 CEUTORHYNCHI 272 CEUTORHYNCHINI 267 Ceutorhynchus angulatus 277 convexicollis . . . 276 cretura 283 decipiens 275 incequalis 269 medialis 279 obliquus 278 puberulus 279 pusillus 276 pusio 276 rapse 274 rudis 275 semirufus 278 septentrionalis. . . 279 sericans 275 squainatus .... 277 Page. Ceutorhynchus subpubescens. . . 273 sulcipennis .... 274 trinngiUaris .... 284 tau 278 Zimmermanni . . 279 Chsetechus setiger 78 Chsetophlceus hystrix 382 Chalcodermus 236 Chlorophanus aeiitus 91 imdulatus 24 Choragus Sayi 408 Zimmermanni 408 Chramesus Cliapuisii 375 icorise 375 Clmbocera pauper 56 CIONINI 219 Clonus scophularise 220 CLEONINI 144 Cleonaspis lutulentus 153 Cleonopsis pulvereus 147 deonus calandroides 417 canescens 151 carinicollis 152 collaris 149 frontalis 150 inornatus 149 lutulentiis 153 obliquits 147 puberulus 151 pulvereus. 147 quadrilineatus 150 sparsus 152 trivittatus 149 virgatus 150 vittatus 152 Cleogonus sedentarius 247 Cnemogonus epilobii 269 Cnesinus strigicollis 378 Coccotorus scutellaris 194 CtELIODES 268 Cceliodes acephalus 270 asper 270 cruralis 270 curtus 270 epilobii 269 flavicaudis 271 leprosus 270 nasalis 271 nebulosus 271 subulirostris 270 tenuipes 270 Coelogaster cretura 283 obscurus 283 Zimmermanni 283 Coelosternus hispidulus 258 Coleocerus dispar 109 niarmoratus 109 INDEX. U7 Pige. Conipsus auriceplialus 88 auriceps 88 Conotrachelus adspersus 230 affinis 228 albicinctus 226 anaglypticus .... 234 aratus 228 argula 227 Belfragei 419 COD finis 432 cratsegi 230 elegans 228 geminatus 232 juglandis 226 leucophijeatus . . . 234 naso 231 nenuphar 227 nivosus 229 plagiatus 233 retensus 227 retentus 227 seniculus 227 sirailis 231 tuberosus 233 posticatus 232 puncUcollis 232 infector 232 cribricollis 233 flssunguis 234 erinaceus 235 hispidus 235 Copturus adspersus 262 binotatus 263 longulus 263 lunatus 263 mammillatus 262 minutus 264 nanulus 261 nanus 260 operculatus 261 quercus 263 CORTHYIil 347 Corthylomimns fascuttus 348 scuteUaris 348 Corthylus punctatissimus 347 scviellaris 348 C0S80NID.E 334 COSSONINI 337 Cossonus 338 californieus 435 dubiits 339 pallidus 339 pinguis 340 suboylindricus 340 Craponius insBqualis 269 CRATOPARES 403 Cratoparis lugubris 404 Page. Cratoparis lunatus 404 pagaaus 404 Crypiialus a«pe?-wZMs 350 atratulas ;i54 carinulatus 352 cavus 348 dentiger 349 digestus 3.55 hlspiduliis 3.55 nitidulus 354 pilosulus .351 l)ubcrulus ;i54 pubipcniiis 351 puncUcollis 3.54 refusus 350 rigidus 362 robustus 362 robustus 356 striatus 356 striatulus 362 sulcatii.s 350 CRYPTOPLI 175 CRYPTORHYNCIII 2.39 CRYPTORHYNCHINI 2.33 Cryptorliynclius anaglypticus . . \ 234 apiculatus 254 aratus 228 bisignatus 251 cribricollis 233 elegans 228 fallax 253 ferratus 256 foveolatus 248 fuscatus 251- gracilis 240 luctuosus 251 viisellus 251 minutissimus. . . 254 obliquefasciatus . . 2.51 obliquus 2.53 oblongus 256 obtentus 253 ocidatus 260 operculatus 261 parochus 251 retentus 227 tristis 255 umbrosus 253 ypsilon 2.53 CRYPTURGI 387 Crypturgus atomus 387 comaius 355 dissimilis 356 fasciatus 348 materiarius 350 minutissimus 351 pulicarius 353 448 INDEX. Page. CTypturgn^ pullus, 3 i2 punctaUssimus 347 CURCULIONID^E 112, 121 Curculio aiiricephulus 88 bicolor 7 cretura 283 crinitus 115 granarius 333 epilobii 2G9 elongatus 125 equiseti 163 faseiculatus 407 Jtavescens 115 hilaris 86 laccena 84 ininutus 325 nephele 223 noveboracensis 121 opalus 82 01-yzoe 333 pales 140 parochus 251 penicellus 308 perlcarpius 284 perscitus 312 picumnus 311 plagiatus 223 punctatulus 121 scrophularicB 220 teter 220 tibialis 115 CYLADIDyE 327 Cylas formicarius 327 turcipennis 327 CYPHINI 87 CYPHI 87 Cyphomimus dorsalis 105 Cyphus lautus 89 placidus 90 DERELOMINI 221 Derelomus flavicans 223 signaticollis 223 troglodytes 223 Dendroctonus bifurcus 383 brevicornis 386 frontalis 386 Hnagii 382, 436 punctatus 385 ruflpennis 385 similis 385 simplex 385 terebrans 385 valens 385 Dendrosinus globosus 379 Desmoris constrictus 168 scapalis 168 Diaminius subsericeus 46 Page. Dichoxenns setiger 40 UIROTOGNATHINI 79 Dirotognatlius sordidus 80, 412 Dolurgus puniilus 3S7 Dorytomus brevicollis 165 liirtus 166 hispictus 167 laticollis 164 longulus 166 luridus 165 Mannerheimii 166 mucidus " " 164 rufulus 165 squaniosus 166 subsignatus 165 Dryocoetes affaber 361 granicollis 361 sepentrionis 361 DRYOTRIBI 335 Dryotribus mimeticus 336 DRYOPHTHORINI 335 DRYOPHTHOKI 335 Dry ophtliorus cortical is 335 bituberculatus . . . 335 Dyslobus decoratus /. . 50 granicollis 60 segnis 41 Dysticheus insignis 73 Eccoptus niinuius 264 Elassoptes . . . . ^ 341 EMPHYASTINI 137 Emphyastes fucicola 137 Encalus decipiens 213 Endalus ajratus 176 cribricollis 177 limatulus 176 ovalis 177 punctatus 177 setosus 176 EPIC^RI •. . . . 18 Epicserus formidolosus 20 inibricatus 20 ERIRHININI 160 ERIRHINI 162 Erirhiniis constrictus 168 ephippiatus 209 juniperimis 199 morio 163 luridus 165 rufulus 165 subsignatus 165 vesiitus 166 Erycus morio 163 puncticollis 163 Eubrychius velatus 281 Euchfetes echidna 320 Eucyllus vagans 74 IXDEX. 449 Payc. Eudiagogus pulcher Ill Roseiisclicieldii Ill EudociiiiusMannerlieimii Ill Euguaiiiptus angustatus 5 coUaris. . 6 puncticeps 6 striatus 5 sulcil'rons 6 EUGNOMI 174 Eupagoderes ar'Tentatiis 84 / decipieus 33 desei'tus . . 34 geminatus 35 lucanus 34 plunibeus 35 speciosus 33 sordidus 34 varius 35 Euparius lunutus 404 lugubris 404 pagaims 404 Eupsalis minuta 325 maxiUosa 325 Eurhoplus pyriformis 245 Eurymycter fasciatus 395 Eusphyi-us Walshii 400 Euxenus punctatus 409 EVOTI 102 Evotus naso 103 EXOPHTHALMINI 100 EXOPHTHALMI 100 Falciger Qcephalus 270 quadrispinosiis 283 Geoderces iiicoinptus 72 melanothrix . 71 Gnathotrichus corthyloides 350 Gononotus lutosus 337 Gonops flssunguis 398 Gonotropis gibbosus 394 Graphorhinus vadosus 19 Grypidius brunnirostris 163 equiseti 163 vlUatus 115 Gymnetron teter 220 Hadrom erus /liiarw 86 opalinus 85 Hexarthrum 341 Itilipus squamosus 141 scrobiculatus 139 Himatium errans 427 Homaloxenus dentipes 338 HORMISCI 396 Hormiscussaltator 397 HORMOPINI 320 Hormops abducens 321 HORMORI 23 Hormorusundulatus 24 PROC. AMER. PHILOS. SOC. XV. 96 Page. HVIJUONOMI 182 HYLASTES 387 Hylastes cavornosus 388 carhonariux 389 erixUUus 390 exlli.s. 389 gracilis 388 yrdiiosiix 389 granuldtiis 380 longiis 389 macer 388 nigriiius 388 pinifex 390 porculus ;W8 porosus 388 pumilus 387 rufipes 390 rugipennis 390 salebrosus 389 scabrosus 389 subcoslulatus 390 tenuis 388 Hyk'.siiiiis aculcatus 379 aspericullis 380 fasciatus 380 hystrix 382 imperialis 379 iiebulonus 380 opaculus 380 pruinosuji 379 rufipeniUs 376 sericeus 380 HYLOBIINI 137 Hyloblus assiiiiilis 140, 430 confusus 140 pales 140 picivorus 140 pinicola 139 stupidus 140, 430 torpidus 55 HYLURGI 377 HYLURGINI 373 Hylurgops cristatus 390 granulatus 390 pinifex 390 ruttpes 390 rugipennis 390 subcostulatus 390 Hylurgus analogus 386 dentatus 381 obesus 385 sericeus 380 rufipennis 385 rugipenni.s 390 Hypomolyx pinicola 139 Hypothenemus dissimilis 356 erectus 356 3e 450 INDEX. Page. Hypothenemus hispidulus 355 striatus 356 Hypsonotus alternatus 119 ISCHNOCERI 393 Ischnocerus infuscatus 393 macrocerus 393 ITHYCERID.E 120 Ithycerus curculianoides 121 noveboracensis 121 ITHYPORI 224 Lachnopus floridanus 101 L.EMOSACCINI 223 Ijffiinosaccus plagiatus 223 Lepidophorus lineaticollls 120 Lepisomus 37tj Leposoma californica 429 Lepyrus colon 127 gemellus 127 geminatus 127 Liophlceiis inquinatus 120 Liparus picivorus 140 sulciroxtris 31 tesselattis 93 vittatus 30 Lissorhoptrus aplculatus 183 simplex 183 Listroderes appendiculatus 132 caudatus 131 delmnhis 136 distinffuendus 129 humilis 136 im-inundus 136 incequalipennis 131 latiuscidtis 134 Uneatidus 136 oregonensis 133 porcellus 136 solutus 136 sordidus 129 sparsua 136 spurcus 136 squamiger 130 teretirostris 135 Listronotus americanus 131 appendiculatus .... 132 callosus 130 cribricollis 134 caudatus 131 frontalis 133 gracilis 135 impressifrons 134 ineequalipennis .... 131 latiusculus 134 uebulosus 133 nevadicus 135 obliquus 129 oregonensis 133 Page. Listronotus punctiger 135 rotundicoUis 132 setosus 134 sordidus 129 squamiger 130 sulcirostris 132 teretirostris 135 tuberosus 130 TMhodus humeralus 12 ajjinis 12 erosus 12 longior 12 morbillosus 12 rectus 12 rudis 12 Litodactylus velatus 2S1 Lixellus flliformis 182 Lixus asper 156 auctus . 155 c.alandroides 158, 417 californicus 160 caudifer 156 concavus 158 fossus 415 IffisicoUis 160 lateralis 159 macer jgo marginatus 160, 431 mixtus 415 modestus 160, 431 mucidus 158 musculus 158 parous 157 perforatus 159 placidus 159 pleuralis 155,415 poricoUis 160,431 prsepotens 160, 431 punctinasus 157 rectus 158 rubellus 155 serobicollis 159 Sylvius 156 terminalis 157 texanus 155 Lophalophus inquinatus 120 Macrancylus linearis 339 Maa'ocephalus albifrons 404 bimaculatus 395 cacao 407 fasciatus 395 Macrops delumbis 136 humilis 136 immundus 136 lineatulus 136 maciUicollis 136 porcellus 136 INDEX, 451 Pane. Mitcrops solutus l-^(> spiirsus 1S6 spurcus 136 solutus 130 vitlatlcollis 137 MacrorhoiJtus estriiitus '20 fuscatus 360 grcmicolHs 361 hamatus 361 impressus 860 obesus 360 plagiatus 361 planicollis 361 pubescens 360 pyri 360 pini. 360 retusieollis 860 septentrionis 361 sparsus -360 tachygraphus 360 vicinus 860 xylographus 360 XYLOTERI 356 Xyloterus bivittatus 357, 426 cavifronx 357 politus 358 retusus 357 scabricollis 358 unicolor 358 Yuccaborus frontalis 334 Zagiyptus striatus 237 sulcatus 237 Zascelis irrorata 257 serripes 257 squamigera 257 ^Zygobaris conspersa 818 convexa 422 nitens 318 ZYGOPINI 259 Zygops quercus 263 ,_ ccc c dec ^"_ c: d < c: nr c c c jcc -^^^^< C-.d^ ^I1CI_C CGC ■'^^ c_d < ^.'Cd d« ^d_ ■ d . < < < c: «c c c««aci c'dc oK^c: CCC clKSd^ <:^ ; S '"■ cc: