BIOLOGIACENTRALI-AMERICANA. INSECTA.COLEOPTERA. VOL. IV. PART 3. BYDAVID SHARP, F.R.S.,ANDG. C. CHAMPION, F.Z.S. David Sharp G. C. Champion 1889–1911 CONTENTS. Page INTRODUCTION v ERRATA vi Subfam. ATTELABINÆ D. SHARP 1 Subfam. PTEROCOLINÆ D. SHARP 43 Subfam. ALLOCORYNINÆ D. SHARP 45 Subfam. APIONINÆ D. SHARP 47 Subfam. THECESTERNINÆ D. SHARP 86 Subfam. OTIORHYNCHINÆ D. SHARP 87  Otiorhynchinæ Apteræ D. SHARP 87   Ophryastina D. SHARP 87   Epicærina D. SHARP 101   Sciaphilina D. SHARP 167   Peritelina D. SHARP 177   Trachyphlæina D. SHARP 177  Otiorhynchinæ Alatæ G. C. CHAMPION 178   Tanymecina G. C. CHAMPION 178   Polydrosina G. C. CHAMPION 208   Anypotactina G. C. CHAMPION 215   Cyphina G. C. CHAMPION 221   Exophthalmina G. C. CHAMPION 247   Platyomina G. C. CHAMPION 282   Eutimina G. C. CHAMPION 300 SUPPLEMENT TO THE THECESTERNINÆ AND OTIORHYNCHINÆ G. C. CHAMPION 317 INDEX 345 PLATES. a2 INTRODUCTION. THIS Volume, one of five required for the enumeration of the Rhynchophora, was commenced by Dr. Sharp in 1889 and is now concluded by myself. The study of the “Otiorhynchinæ Alatæ” has unfortunately been delayed for many years, during the publication of Vol. IV. parts 4, 5, and 7, all of which are devoted to the Family Curculionidæ. The present Volume, IV. part 3, includes the Subfamilies Attelabinæ, Pterocolinæ, Allocoryninæ, Apioninæ, Thecesterninæe, and Otiorhynchinæ. The Attelabinæ are represented by 104 (88 new), the Pterocolinæ by three (all new), the Allocoryninæ (a new subfamily) and Thecesterninæ each by one, the Apioninæ by 88 (84 new), and the Otiorhynchinæ by 419 (340 new) species respectively; the total number for the six subfamilies being 616 species, with 516 new, and forty new genera. Amongst the 419 Otiorhynchinæ, the apterous and winged forms are almost equal in number, there being a preponderance of apterous terrestrial species (Eupagoderes, Epicaerus, Epagriopsis, &c.) in the arid portions of Mexico and the winged forms (Exophthalmus, &c.) becoming relatively more numerous in the forest regions southward. Taking the Curculionidæ as a whole—the subfamilies Curculioninæ and Calandrinæ in addition to those worked out in the present Volume—the number of species enumerated altogether from Central America is as follows:— Vol. IV. part 3, 616; IV. part 4, 1365; IV. part 5, 908; IV. part 7, 344: total 3233. The three other families of Rhynchophora—the Brenthidæ, Scolytidæ, and Anthribidæ, —dealt with in Vol. IV. part 6, number 615 species, thus bringing the total for the whole of the weevils up to 3848. The Rhynchophora, therefore, as anticipated (though not to the extent roughly estimated by myself in the Introduction to Vol. IV. part 4 of this series), greatly outnumber the Phytophaga (2619, including the Hispidæ and Cassididæ) within our limits. The Otiorhynchid material examined by me includes that belonging to the U.S. National Museum, to whom we are indebted for co-types of all the species here described from their collection, as well as for many N.-American forms for comparison. From Costa Rica we have received during recent years numerous interesting species, both from Pittier and Biolley. Mr. Wickham, too, during his visit to Mexico in 1909, secured various Otiorhynchids, and, as usual, has kindly allowed us to retain any of these specimens that we required. Signor A. Solari, again, has also permitted us to keep for the British Museum the types of such species as have been described by me from his collection, which includes a portion of that of Jekel. The “Sommer collection” of Curculionids (including various types of Boheman, &c.) having been recently acquired by Prof. Poulton for the Oxford University Museum, we have been enabled to verify the names of certain species left unidentified by Dr. Sharp, and this involves some slight corrections to the synonymy of the "Otiorhynchinæ Apteræ," which are noted in the Supplement. As stated in a footnote on p. 317, various Apioninæ left undetermined by Dr. Sharp for want of sufficient material, with such forms that have since come to hand, have been handed over to the specialist Herr Hans Wagner for study, and his descriptions of the new forms will be published elsewhere. Of the fifteen coloured Plates issued, the first six were drawn by Mr. Purkiss, the others by Mr. E. Wilson of Cambridge. It will not be out of place to note here that the enumeration of the Coleoptera, commenced in 1879, is now completed, bringing the total number of species to 18,039, for which eighteen Volumes have been required. G. C. C.December 1911. G. C. C. G. C. Champion December 1911. ERRATA. Page Line 211 17 for pterygonalis read pterygomalis. 223 2 for conicus read conicollis. BIOLOGIA CENTRALI-AMERICANA. ZOOLOGIA. Sharp Sharp April 1889 Class INSECTA. Class Insecta Order COLEOPTERA. Order Coleoptera Tribe RHYNCHOPHORA. Tribe Rhynchophora Fam. CURCULIONIDÆ. Family Curculionidæ Subfam. ATTELABINÆ. Subfamily Attelabinæ Attelabinæ Sharp Sharp April 1889 ATTELABUS. genus Attelabus Attelabus, Linnæus, Syst. Nat. ed. xii. 1, p. 619 (1767); Olivier, Ent. v. p. 5. Attelabus Linnæus Linnæus Syst. Nat. ed. xii 1 619 1767 Olivier Olivier Ent. v 5 Chyphus, Thunberg, Act. Ups. vii. p. 110. Chyphus Thunberg Thunberg Act. Ups. vii 110 Cyphus, Bedel, Faune Col. Seine, vi. pt. 2, p. 23. 1 Cyphus Bedel Bedel Faune Col. Seine vi. pt. 2 23 Attelabus is at present a genus of more than 100 species, distributed over the continental regions of the world, and no doubt numerous in the tropics, as there are many undescribed species extant in collections. South America and the Antilles have yielded at present the larger proportion of its representatives. Bedel 1 has recently proposed to transfer the name Attelabus to the allied genus Apoderus, on the ground that in the tenth edition of the ‘Systema Naturæ’ an insect now referred to Apoderus was the representative of Attelabus. In the Munich Catalogue, which I here follow, the origin of the genus is assigned to the twelfth edition of the ‘Systema Naturæ’; or the genus may be credited to Olivier, whose work really inaugurated the modern arrangement of the genus and its allies. Either course appears sufficiently satisfactory, and enables us to avoid the confusion caused by Bedel's proceeding [which involves the alteration of some hundreds of names of species of Curculionidæ—Apoderus being called Attelabus, Attelabus Chyphus (emended to Cyphus), and Cyphus Neocyphus], so that I have no doubt the course I now adopt will receive the sanction of Coleopterists. Attempts have been made in a more or less distinct manner to subdivide the genus; BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 3, April 1889. BB but the divisions have not proved satisfactory, and I follow Lacordaire and the Munich Catalogue in using the name in its more extended sense. I. Anterior femora without teeth or spines. (Attelabus, auct.) I Anterior femora without teeth or spines. Attelabus auct. A. Eyes very widely separated, the space between them not carinate; spurs of the anterior tibæ of the female placed one in front of the other. (Pilolabus, Jekel.) A Eyes very widely separated, the space between them not carinate; spurs of the anterior tibæ of the female placed one in front of the other. Pilolabus Jekel Jekel B. Eyes only moderately distant, the space between them carinate; surface pubescent; spurs of the anterior tibiæ of the female placed one above the other. (Himatolabus, Jekel.) B Eyes only moderately distant, the space between them carinate; surface pubescent; spurs of the anterior tibiæ of the female placed one above the other. Himatolabus Jekel Jekel C. Eyes but little separated, the space between them sulcate or carinate; surface without pubescence. (Xestolabus, Jekel.) C Eyes but little separated, the space between them sulcate or carinate; surface without pubescence. Xestolabus Jekel Jekel II. Anterior femora irregularly serrate; form extremely short and broad. (Hylolabus, Jekel.) II Anterior femora irregularly serrate; form extremely short and broad. Hylolabus Jekel Jekel III. Anterior femora unidentate or bidentate. (Euscelus, Germ.) III Anterior femora unidentate or bidentate. Euscelus Germ. Germ. A. Thorax without constriction behind front margin. A Thorax without constriction behind front margin. B. Thorax with constriction behind front margin. B Thorax with constriction behind front margin. Sharp Sharp 1. Attelabus sumptuosus. species 1 Attelabus sumptuosus Attelabus sumptuosus Attelabus sumptuosus, Gory in Guer. Mag. Zool. 1834, Cl. ix. t. 119. 1 Attelabus sumptuosus Attelabus sumptuosus Gory in Guer. Gory Guer. Mag. Zool. Cl. ix t. 119 1834 Hab. MEXICO (Brit. Mus. ex coll. Children), Ventanas in Durango (Höge).--??SOUTH AMERICA 1 . Mexico Brit. Mus. ex coll. Children Mexico Durango Ventanas Höge Höge South America ?? We have received only three examples, all females, that I can refer to this species; this sex has the peculiarity that the front tibiæ are bimucronate at the extremity, the mucrones being placed at the inner edge, one in front, the other behind. Attelabus sumptuosus has hitherto been only recorded from South America, but I feel sure that this has been the result of error. Gory 1 says, “cette charmante espèce a été trouvée dans l'Amérique méridionale, et m'a été donnée par M. Children de Londres.” Now the two examples of the species in the collection of the British Museum are also from Children's collection and are labelled Mexico, so that it is highly probable that Gory's example was really from there; this appears more certain when we recollect how vague is the term “Amérique méridionale” used by Gory. Sharp Sharp 2. Attelabus viridans. (A. viridanus, Tab I. figg. 1, 1a.) species 2 Attelabus viridans Attelabus viridans Tab I. figg. 1, 1a coleoptera-v4p3-fig-t1f1 coleoptera-v4p3-fig-t1f1a Attelabus viridans Gyll. in Schönh. Gen. et Spec. Curc. v. p. 303 1 . Attelabus viridans Attelabus viridans Gyll. in Schönh. Gyll. Schönh. Gen. et Spec. Curc. v p. 303 Hab. Mexico between Oaxaca and Acapulco 1 , Cuernavaca (Sallé). Mexico between Oaxaca and Acapulco Sallé Sallé Mexico Cuernavaca Sallé Sallé If I rightly apply this description, A. viridans is very closely allied to A. sumptuosus, and differs chiefly in the coarser sculpture of the wing-cases. It is apparently very variable in colour, some specimens being in this respect similar to A. sumptuosus, while others are blue or green, without copper or golden stripe; I think, however, all belong to one species, though this is by no means certain. The structure of the front tibiæ of the female is the same as in A. sumptuosus. This is apparently a rare insect, as our editors have received only five examples, and I am acquainted with only two or three others in the collections of the Rev. H. S. Gorham and myself, obtained from old sources. Sharp Sharp 3. Attelabus smithi, sp. n. species 3 Attelabus smithii Attelabus smithii sp. n. Attelabus viridans Attelabus smithi Sharp Sharp Biologia Centrali-Amer. vol. 4, part 3 2 Subtus viridi-auratus, supra cupreus, prothoracis basi elytrorumque viridis, antennis pedibusque nigris; elytris fortiter profundeque punctatis. Long. cum rostro 8 millim. Hab. Mexico, Mescala in Guerrero (H. H. Smith). Mexico Guerrero Mescala H. H. Smith H. H. Smith Antennæ very short, the fourth joint a little longer than broad, the sixth about as long as broad, the seventh and eighth transverse, the club abrupt, compact, about as long as the five preceding joints, the tenth joint rather shorter than the ninth or eleventh. Rostrum short and broad, only as long as the head; eyes prominent, widely separated, the surface between them rugose. Thorax narrower in front than behind, constricted both in front and at the base. Elytra with a series of deep punctures, subrugose, not brilliant even at the apex. We have received only two female examples of this species. One of the varieties of A. viridans is almost similarly coloured, but I separate A. smithi on account of its smaller size and still coarser and deeper sculpture. The cupreous-red parts of A. smithi are duller in colour than in A. sumptuosus and A. viridans, var., and the legs have scarcely any metallic tint. Sharp Sharp 4. Attelabus splendens. (Tab I. fig. 2, ♂.) species 4 Attelabus splendens Attelabus splendens Tab I. fig. 2, ♂ coleoptera-v4p3-fig-t1f2 Attelabus splendens Gyll. in Schönh. Gen. et Spec. Curc. v. p. 304 1 . Attelabus splendens Attelabus splendens Gyll. in Schönh. Gyll. Schönh. Gen. et Spec. Curc. v p. 304 Hab. Mexico, Vera Cruz (Chevrolat 1 , Sallé). Mexico Veracruz Chevrolat Chevrolat Mexico Veracruz Sallé Sallé I have seen only two examples of this species: one was obtained from Sallé's collection, and therein was labelled “O. sallei, type”; the other is also a “type” from Schönherr's collection communicated by Dr. Aurivillius. O. sallæi is one of the most densely squamose species of the genus, and I think the maculation of the surface in these individuals is in part, if not entirely, due to their being stained irregularly with a very tenacious, muddy fluid. The legs are remarkably short. The rostrum is short, without median groove, but with a vague basal, transverse impression. The mentum is short and broad, greatly narrowed towards the base, depressed and shining in the middle. Sharp Sharp 5. Attelabus klugi. (Tab I. fig. 3, ♂.) species 5 Attelabus klugi Attelabus klugi Tab I. fig. 3, ♂ coleoptera-v4p3-fig-t1f3 Attelabus klugii, Gyll. in Schönh. Gen. et Spec. Curc. v. p. 302. Attelabus klugii Attelabus klugii Gyll. in Schönh. Gyll. Schönh. Gen. et Spec. Curc. v p. 302 Hab. MEXICO (Klug 1 ), Parada (Sallé). Mexico Klug Klug Mexico Parada Sallé Sallé Sharp Sharp 6. Attelabus nigriclava, sp. n. species 6 Attelabus nigriclava Attelabus nigriclava sp. n. Attelabus viridans Attelabus nigriclava Sharp Sharp Biologia Centrali-Amer. vol. 4, part 3 3 Gracilis, æneus, rugosus, griseo-pubescens, antennarum clava nigerrima, elytris singulis puncto depresso fusco. Long. cum rostro 7 millim. We have received five examples of this species, which is allied to A. klugi, but differs in a great many minor points, besides the foveæ on the wing-cases. Of the variety we have received only one specimen. It is quite possible that it may prove to be a distinct species. Antennæ moderately long, the club abrupt, quite black and thus contrasting strongly with the other joints, as these bear much white hair. Head as long as the rostrum; eyes prominent, widely separated. Thorax much narrowed towards the front, but not constricted either in front or at the base, deeply transversely rugose. Scutellum narrow. Elytra rather deeply and coarsely rugose; on the middle of each is a small BB 2 round fovea. Legs slender. Male with a depression along the middle of the ventral segments. Hab. MEXICO, Chilpancingo in Guerrero 4600 feet (H. H. Smith). Mexico Guerrero Chilpancingo 4600 feet H. H. Smith H. H. Smith Sharp Sharp Var. variety Var. Attelabus nigriclava [unnamed] Var. Elytris minus profunde rugosis, quasi submaculatis; minus conspicue griseo-pubescens. Hab. MEXICO, Omilteme in Guerrero 8000 feet (H. H. Smith). Mexico Guerrero Omiltepe 8000 feet H. H. Smith H. H. Smith Sharp Sharp 7. Attelabus diffinis, sp. n. species 7 Attelabus diffinis Attelabus diffinis sp. n. Attelabus viridans Attelabus diffinis Sharp Sharp Biologia Centrali-Amer. vol. 4, part 3 4 Gracilis, nigerrimus, brevissime parcissimeque pubescens, subopacus; elytris obsolete sculpturatis. Long. cum rostro 9 millim. This insect has the form of A. klugi, but is very different in colour, sculpture, and pubescence. Only one example has been obtained; it is a female, and has the two spurs on the anterior tibiæ placed one in front of the other as in A. viridans. Head elongate, about as long as the rostrum, the eyes convex, very widely separated, the space between them without depressions, rugosely sculptured. Thorax elongate, rounded at the sides and a little narrowed in front, with a feeble depression or constriction in front of the base, the surface transversely rugose. Scutellum narrow and quite small. Elytra elongate, with a distant, very irregular punctuation. Legs long and slender. Hab. MEXICO, Chilpancingo in Guerrero (H. H. Smith, June 1888). Mexico Guerrero Chilpancingo H. H. Smith H. H. Smith June 1888 Sharp Sharp 15. Attelabus -- ? species 15 Attelabus -- ? Attelabus [unnamed] Attelabus --? Attelabus [unnamed] Sharp Sharp Biologia Centrali-Amer. vol. 4, part 3 7 A single female example. This is probably the exponent of a species very near to A. læsicollis; it is smaller, and has the eyes placed nearer to the thorax, but the male should be known before a decision is made about it. Hab. MEXICO, Tierra Colorada in Guerrero (H. H. Smith.) Mexico Guerrero Tierra Colorada H. H. Smith H. H. Smith Sharp Sharp 25. Attelabus ater. (Tab. I. fig. 8, var. sallæi.) species 25 Attelabus ater Attelabus ater Tab. I. fig. 8, var. sallæi coleoptera-v4p3-fig-t1f8 Attelabus ater, Oliv. Encycl. Meth., Ins. iv. p. 278 1 ; Ent. v. no. 81, p. 8, t. 1. f. 6 2 . Attelabus ater Attelabus ater Oliv. Oliv. Encycl. Meth., Ins. iv p. 278 Ent. v. no. 81 p. 8, t. 1. f. 6 ? Attelabus atratus, Fabr. Syst. Eleuth. ii. p. 419 3 . ? Attelabus atratus Attelabus atratus Fabr. Fabr. ? Syst. Eleuth. ii p. 419 Attelabus ignitus, Schönh. Curc. disp. Meth. p. 44 4 . Attelabus ignitus Attelabus ignitus Schönh. Schönh. Curc. disp. Meth. p. 44 Attelabus variabilis, Gyll. in Schönh. Gen. et Spec. Curc. i. p. 201 5 . Attelabus variabilis Attelabus variabilis Gyll. in Schönh. Gyll. Schönh. Gen. et Spec. Curc. i p. 201 Attelabus (Hybolabus) sallei, Jekel, Ins. Saund. ii. p. 208 6 (n. syn.). Attelabus (Hybolabus) sallei Attelabus Hybolabus sallei Jekel Jekel n. syn. Ins. Saund. ii p. 208 Jekel considered a specimen from Mexico sent to him by Sallé as distinct; but I am not able to find any satisfactory characters to distinguish individuals of our region from examples found at Monte Video, these localities being apparently the extreme points of its distribution; the characters relied on by Jekel are but slight, and some of them are not confirmed by the examples before me. A. ater appears rare in our region, only five examples having come under my observation. We figure the example found in Guatemala by Mr. Champion. CC 2 Hab. MEXICO 6 , Toxpam (Sallé); GUATEMALA, Panzos (Champion), Coban (Conradt). --SOUTH AMERICA 3 , Cayenne 1 4 5 , Brazil 5 , Monte Video (coll. Sharp). Mexico Toxpam Sallé Sallé Guatemala Panzos Champion Champion Guatemala Coban Conradt Conradt South America Cayenne Sallé Sallé South America Brazil Sallé Sallé South America Monte Video Sallé Sallé Sharp Sharp April 1889 May 1889 Subfam. RHYNCHITINÆ. subfamily Rhynchitinæ Rhynchitinæ Sharp Sharp April 1889 May 1889 RHYNCHITES. genus Rhynchites Rhynchites Rhynchites, Herbst, Natursyst. Käf. vii. p. 123 (1797). Rhynchites Rhynchites Herbst Natursyst. Käf. vii p. 123 1797 Lasiorhynchites, Jekel, Ins. Saund. ii. p. 227, note. Lasiorhynchites Lasiorhynchites Jekel Ins. Saund. ii p. 227, note. This genus consists at present of about 100 species, distributed in the continental regions of both the Old and New Worlds, but there are very few representatives described from South America. The North-American species are moderately numerous, but they are not yet very well elucidated. We have obtained a fair series of species from our region which may be arranged in three groups, besides an aberrant species which may form ultimately another genus. Jekel, when describing a species of one of these groups, proposed for it the name of Lasiorhynchites, stating, however, that the European Rhynchites pubescens was the type of the group or subgenus. This association is, however, an unnatural one, as R. pubescens cannot be placed in the same subgenus as R. rufiventris, which is a member of a group peculiar to the tropical regions of the New World. So far as the species of our region are concerned Lasiorhynchites, Jekel, is therefore a synonym of Rhynchites. § 1. Pygidium almost entirely covered; rostrum nearly always much sculptured, but little curved. § 1 Pygidium almost entirely covered; rostrum nearly always much sculptured, but little curved. § 2. Pygidium entirely exposed.... § 3. Pygidium covered.... § 4. Aberrant species.... Sharp Sharp April 1889 8. Rhynchites scutellaris, sp. n. species 8 Rhynchites scutellaris Rhynchites scutellaris Sharp Sharp sp. n. Rhynchites scutellaris Rhynchites scutellaris Sharp Sharp Biologia Centrali-Amer. vol. 4, part 3 19 Nigerrimus, nitidus, nigro-hirtus, scutello albido-piloso, corpore subtus griseo-pubescens; capite prothoraceque parce punctatis; elytris seriatim punctatis, interstitiis seriatim remote punctatis. Long. cum rostro 3½–4½ millim. This species is closely allied to R. mollis, but on the upper surface the pubescence does not appear white, except that the scutellum is more densely clothed with long white hairs parted along the middle; the punctuation of the head and thorax is much scantier; on the elytra the serial punctures become quite fine on the posterior half—they consist of a large puncture alternating with a very fine puncture—and the broad, quite flat interstices bear also a few fine setigerous punctures. The rostrum is coarsely sculptured; the space between the eyes is impunctate, except laterally; and the vertex, like the slender thorax, is moderately finely, not closely punctate. Four specimens. The example from Juquila that I have treated as a variety will, I think, prove to be distinct. Hab. GUATEMALA, Capetillo (Champion). Guatemala Capetillo Champion Champion Sharp Sharp April 1889 Var. (?) variety Var. (?) Rhynchites scutellaris [unnamed] (?) Major, elytris fortiter punctatis, interstitiis haud omnino planis. Hab. Mexico, Juquila (Höge). Mexico Juquila Höge Höge Sharp Sharp April 1889 May 1889 24. Rhynchites inermis, sp. n. Rhynchites inermis Rhynchites inermis sp. n. Nigro-violaceous, nitidus, minus dense hirsutus, parcius obsoletiusque punctulatus, scutello elytrorumque sutura in parte basali, elytris apicem versus, pectorisque lateribus albido-pubescentibus. Long. cum rostro 6–7 millim. I should have treated this as only a variety of R. championi, but it has a more slender thorax, and this part is but little dilated in the male; it differs, moreover, in various other slight particulars from that insect. The punctuation of the thorax is very fine, but is numerous at the sides. The elytra are flat, and become a good deal broader behind, very little punctate, and the white pubescence on the suture and scutellum is neither dense nor conspicuous; on the other hand, the white fascia on the side of the breast is remarkably distinct. We have received seven examples. The variety (?) from Bugaba very likely belongs to a different species. Hab. COSTA RICA, Cache (Rogers); PANAMA, Volcan de Chiriqui 3000 to 4000 feet (Champion). Costa Rica Cache Rogers Rogers Panama Volcan de Chiriqui 3000 to 4000 feet Champion Champion Sharp Sharp May 1889 Var. ? Var. ? Rhynchites inermis [unnamed] ? Major, vix violaceo-tinctus, prothorace ad latera parcius punctato. Long. cum rostro 8¼ millim. Hab. PANAMA, Bugaba (Champion). Panama Bugaba Champion Champion Sharp and Champion Sharp Champion February 1891-October 1911 Subfam. OTIORHYNCHINÆ Subfamily Otiorhynchinæ Otiorhynchidæ, Leconte and Horn, Rhynchophora of North America, p. 13. Otiorhynchidæ Leconte and Horn Horn Leconte Rhynchophora of N. America p. 13 Brachyderides, Otiorhynchides (part.), Lacordaire Brachyderides Lacordaire Lacordaire pro parte Brachyderides, Otiorhynchides Lacordaire Lacordaire This subfamily is defined in a satisfactory manner by the existence of a scar on each of the mandibles, due to the detachment of a peculiar pair of cutting instruments, supposed to be used by the insect for freeing itself when emerging from the pupal stage. I propose to divide the subfamily into two divisions, consisting (I.) of the apterous, (II), of the winged Otiorhynchinæ. Sharp Sharp February 1891-May 1911 Series OTIORHYNCHINÆ APTERÆ. Series Otiorhynchinæ Apteræ Otiorhynchinæ Apteræ Alæ rudimentariæ. Metanotum membraneum. These important characters divide the Otiorhycnhinæ in a natural manner, and though they cannot be directly observed without breaking up the specimen, as the elytra are frequently more or less soldered together in the apterous forms, yet it is very easy to distinguish the members of the two groups by external minor characters. In the “Otiorhynchinæ apteræ” there are no prominent shoulders to the elytra; the exposed portion of the scutellum is usually very minute, and scarcely penetrates at all between the exposed parts of the wing-cases; the metasternum is always short; and the part of the mesothoracic episterna left uncovered by the elytra is small or moderate in size. Although this latter point is very variable it is of great assistance in separating the insects of the two groups, and indeed was made use of by Horn as a means of dividing the family. In the "Otiorhynchinæ alatæ” the shoulders of the elytra are distinct and stand out more or less laterally, the tip of the scutellum separates the exposed bases of the elytra, the metasternum is either elongate or short, and the uncovered part of the mesothoracic episterna is either moderate in size or large. Sharp Sharp February 1891 Group OPHRYASTINA. Group Ophryastina Ophryastina This group includes all the apterous Otiorhynchinæ of our region that have ocular lobes on the prothorax. As regards this point it should be remarked that there are some species in which it is difficult at first sight to determine whether ocular lobes are present or not; but in such cases the form of the eye will determine the point, it being more or less longitudinal in the greatest diameter when lobes are present, and transverse when they are absent. It includes two minor groups that it is unnecessary to distinguish here by names, viz.: I. Rostrum with scrobes that are very deep and definite, even at their termination. Genera Ophyrastes, Tosastes, Caccophyrastes, and Eupagoderes. I Rostrum with scrobes that are very deep and definite, even at their termination. Ophyrastes Ophyrastes Toastes Toastes Caccophryastes Caccophryastes Eupagoderes Epagoderes II. Rostrum with scrobes that are extremely broad and quite indefinite behind. Genus Amphidees. II Rostrum with scrobes that are extremely broad and quite indefinite behind. Amphidees Amphidees The genera of the first subgroup may be readily distinguished as follows:— A. Tarsi without pubescence on the third joint. A Tarsi without pubescence on the third joint. B. Tarsi with adhesive pubescence on the lobes of the third joint. B Tarsi with adhesive pubescence on the lobes of the third joint. 1. Corbels of the posterior tibiæ more or less imperfectly cavernousOphyrastes. 1 Corbels of the posterior tibiæ more or less imperfectly cavernous Ophyrastes Ophyrastes 2. Corbels of the posterior tibiæ with laminate tip bearing only one series of spinules externally (“open corbels,” Lacord.) Tosastes. 2 Corbels of the posteriortibiæ with laminate tip bearing only one series of spinules externally (“open corbels,” Lacord.) Tosastes Tosastes 1. Mentum concealing the palpi entirely Eupagoderes. 1 Mentum concealing the palpi entirely Eupagoderes Eupagoderes 2. Palpi projecting beyond the apex of the mentum Caccophryastes. 2 Palpi projecting beyond the apex of the mentum Caccophryastes Caccophryastes Sharp Sharp February 1891 OPHRYASTES. genus Ophryastes Ophryastes (part.), Schönh. Gen. Curc. i. p. 508 (1833). Ophryastes Schönh. Schönh. part. Gen. Curc. i 508 1833 Dystirus, Pascoe, Journ. Linn. Soc., Zool. xi. p. 447. synonym Dystirus Pascoe Pascoe Journ. Linn. Soc., Zool. xi 447 Ophyrastes, Leconte and Horn, Rhynchophora of N. Am. p. 30. synonym Ophryastes Leconte and Horn Leconte Horn Rhynchophora of N. Am. 30 Although this genus cannot be defined by means of the tuberosities at the side of the thorax, yet it may be satisfactorily separated from Eupagoderes by the absence of adhesive pubescence from the lobes of the third tarsal joint. The tips of the hind tibiæ are cavernous, as stated by Lacordaire, though in an imperfect and variable manner. Ophryastes is peculiar to the arid regions of the Southern United States and Northern Mexico. The species are no doubt epigeal in habits, though I have not seen any records to this effect. North-American form may be at present placed in the genus, though, no doubt, it will have to be ultimately separated *. Sharp Sharp February 1891 * Ophryastes wickhami, sp. n. Griseus, dense squamosus, breviter hispidus; rostro trisulcato, basi depresso; prothorace transverso, rugoso, ad latera perparum incrassato; elytris subsulcatis, sulcis obsolete punctatis. Long. cum rostro 19 millim. Hab.NORTH AMERICA, Winslow, Arizona (Wickham). North America United States Arizona Winslow Wickham Wickham I name this species in honour of Mr. H. F. Wickham, to whom I am indebted for a considerable part of the specimens that have enabled me to form some idea of the N.-American Ophryastini. The feet of O. wickhamiare rather broad, but have no horny projections beneath, these being replaced by membranous processes (formed apparently by agglutinated ciliæ) coming from the side-margins of the joints; the tips of the hind tibiæ are distinctly truncate, and the truncature is entirely filled by long ciliæ or scales, part of them directed inwards, part outwards, but there are no marginal ciliæ. Mr. Wickham thought the species might be referable to O. desertus, Lec., but this is clearly not the case. G. C. Champion G. C. Champion May 1911 Series Otiorhynchinæ Alatæ*.* By G. C. CHAMPION. Series Otiorhynchinæ Alatæ Otiorhynchinæ Alatæ Section I. — Ocular lobes wanting or rudimentary. Section I. Ocular lobes wanting or rudimentary. The characters for this Series of the Otiorhynchinæ are given on p. 87, anteà, and are much the same as those used by Horn for his Division II. of the N.-American forms. The term “Alatæ” unfortunately proves to be misleading, as we now know that the wings are sometimes rudimentary even in a series of specimens of certain species, e.g. in Tanymecus confertus, Gyll. (=variabilis, Fåhr.), from the same locality, and one or two other genera also include both apterous and winged forms. It is proposed here to divide the species of the present series into two sections: one without definite ocular lobes to the prothorax† † In Pachnæus and Diaprepes there is sometimes an indication of a short lobe, as in Pandeleteius and Hadromerus, the other with the lobes large and rounded. The first section, again, is subdivided, according to the presence‡. ‡ Apparently wanting or replaced by scales in one or two of the smaller species of Pandeleteius of the “Tanymecina.” or absence of vibrissæ, the condition of the tarsal claws (connate or free), the position of the scrobes and eyes, the lamination or otherwise of the apex of the posterior tibiæ (closed or open corbels), &c. Horn's groups [tribes] “Tanymecini,” “Exophthalmini,” and “Promecopini” are practically accepted, the last-named corresponding to our Section II.; but his “Cyphini,” with the much larger number of genera represented in our region, and “Phyllobiini” require different treatment. Champion Champion Group TANYMECINA. Group Tanymecina This group is equivalent to Horn's Tribe “Tanymecini,” and it includes two genera in addition to those belonging to the N.-American fauna. Polydacrys is said by him to have “very distinct vibrissæ composed of scales,” but these longer scales seem to me to be part of the general vestiture and not true vibrissæ; this genus, moreover, cannot be satisfactorily placed in a different group from its close ally, Anypotactus, in which the vibrissiform scales are wanting. The tarsal claws are free, except in the anomalous genus Isodrusus, which forms a connecting-link with the Polydrosina. The essential characters of the Tanymecina, therefore, are the presence of setiform vibrissæ and the laterally placed scrobes. The following description was drawn up many years ago by Dr. Sharp and requires no alteration:— Champion Champion TANYMECUS. Genus Tanymecus Tanymecus, Schönherr, Curc. Disp. Meth. p. 127 (1826); Gen. Curc. ii. p. 75; Lacordaire, Gen. Col. vi. p. 96; Horn, Proc. Am. Phil. Soc. xv. p. 83. Tanymecus Tanymecus Schönherr Schönherr Curc. Disp. Meth. 127 1826 Schönherr Schönherr Gen. Curc. ii 75 Lacordaire Lacordaire Gen. Col. vi 96 Horn Horn Proc. Am. Phil. Soc. xv 83 A genus including a large number of species, very few of which are from the New World; one, however, is abundant in the United States and Central America. These American forms all have well-developed setiform vibrissæ. Champion Champion 1. Tanymecus confertus. (Tab. VII. figg. 20, 20a, ♂.) species 1 Tanymecus confertus Tanymecus confertus Tab. VII. figg. 20, 20a, m. coleoptera-v4p3-fig-t7f20 coleoptera-v4p3-fig-t7f20a Tanymecus confertus, Gyll. in Schönh. Gen. Curc. ii. p. 88 1 ; vi. 1, p. 241 2 ; Horn, Proc. Am. Phil. Soc. xv. p. 84 3 ; Pierce, Proc. U.S. Nat. Mus. xxxvii. p. 358 4 . Tanymecus confertus Tanymecus confertus Gyll. in Schönh. Gyll. Schönh. Gen. Curc. ii 88 Gyll. in Schönh. Gyll. Schönh. Gen. Curc. vi. 1 241 Horn Horn Proc. Am. Phil. Soc. xv 84 Pierce Pierce Proc. U. S. Nat. Mus. xxxvii 358 Tanymecus confusus, Say, Descr. N. Am. Curc. p. 9 5 ; Complete Writings, i. p. 269 6 . Tanymecus confusus Tanymecus confusus Say Say Descr. N. Am. Curc. 9 Say Say Complete Writings i p. 269 Tanymecus variabilis, Fåhr. in Schönh. Gen. Curc. vi. 1, p. 241 7 . Tanymecus variabilis Tanymecus variabilis Fåhr. in Schönh. Fåhr. Schönh Gen. Curc. vi. 1 p. 241 Polydacrus tristis, in coll. Sturm 8 . Polydacrus tristis Polydacrus tristis in coll. Sturm. Hab. NORTH AMERICA 1 4 5 6 , everywhere East of the Rocky Mountains 3 .—MEXICO 2 7 8 ; BRITISH HONDURAS; GUATEMALA; NICARAGUA. North America everywhere East of the Rocky Mountains Mexico British Honduras Guatemala Nicaragua An abundant insect in Central America, apparently not extending south of Nicaragua, examples from our region not differing from others before me from Texas, &c. Specimens from Paso del Norte are larger, more densely punctate, and more closely squamose than the rest; Dr. Horn 3 , too, also notes larger individuals from the Southern United States. The wings are usually in a rudimentary condition, but occasionally become fully developed, even amongst a series examined from the same localities (Teapa and Rio Hondo). The rostral carina is rarely obsolete. The humeri are obliquely truncated. The first ventral segment is hollowed down the middle in the male, the fifth is without trace of oblique lines at the base in the female. The length varies from 5–8¾ millim. A male from Nicaragua is figured. The insect has been found on Œnothera in Texas 4 . May 1911 Champion Champion HADROMERUS. Hadromerus Hadromerus Hadromerus, Schönherr, Curc. Disp. Meth. p. 136 (1826); Gen. Curc. ii. p. 127; Lacordaire, Gen. Col. vi. p. 102; Horn, Proc. Am. Phil. Soc. xv. p. 85. Hadromerus Hadromerus Schönherr Schönherr Curc. Disp. Meth. p. 136 1826 Schönherr Schönherr Gen. Curc. ii p. 127 Lacordaire Lacordaire Gen. Col. vi p. 102 Horn Horn Proc. Am. Phil. Soc. xv p. 85 A genus containing some of the most beautiful known American winged Otiorhynchids, H. dejeani, gemmifer, opalinus, &c., being more or less densely clothed with glittering metallic scales. In a few forms, however, the scales vary greatly in colour and may even become uniformly whitish or cinereous in the same species. The females of all of them have the suture of the elytra set with long erect hairs towards the apex, and the males a small claw at the inner apical angle of the intermediate tibiæ. The type of Hadromerus is H. nobilitatus, Gyll. One of the Guatemalan forms has been found in numbers in the “tierra fria.” The seven Central-American forms may be tabulated thus:— a. Surface closely squamose, the legs included, the femora (except in immature examples) at least black. a Surface closely squamose, the legs included, the femora (except in immature examples) at least black. a2 Elytra with the seriate punctures distinctly visible. a2 Elytra with the seriate punctures distinctly visible. b. Surface partly bare and comparatively smooth, the legs included, the latter wholly rufous; the metallic-green scales on the elytra condensed into a narrow sinuous stripe on the disk: species large...rufipes, sp. n. b Surface partly bare and comparatively smooth, the legs included, the latter wholly rufous; the metallic-green scales on the elytra condensed into a narrow sinuous stripe on the disk: species large rufipes Hadromerus rufipes sp.n. May 1911 Champion Champion ISODRUSUS, gen. nov. [Sharp] Isodrusus Isodrusus Sharp ex Champion Champion Sharp gen. nov. Isodrusus Isodrusus Sharp ex Champion Champion Sharp 1911 Biol. Centrali-Amer. 4 pt. 3 207 Rostrum brevissimum, deflexum; coxæ anteriores modice distantes. Rostrum not so long as broad, strongly inflexed, narrower towards the tip; scrobes deep, slender, abruptly angulate, descending. Thorax elongate; front coxæ distinctly separated, placed very near the front margin, at a considerable distance from the hind margin; vibrissæ represented by two or three setæ. Metasternum not elongate, as long as the first ventral plate. First and second ventral plates equal in length, third and fourth equal, short. Legs stout; tarsal claws small, connate. This genus resembles Polydacrys and Pandeleteius in many respects, and still more Isodacrys in the apterous series, but all these three genera have free claws. Isodrusus is altogether a most anomalous little insect; the rostrum could scarcely be shorter, and I do not see any trace of a nasal plate at its apex. The wings (Tab. VIII. fig. 32 b ) are folded transversely, but have remarkably few veins. A similar rudimentary condition of the vibrissæ occurs in Pseudelissa and in Isodacrys.

Champion Champion May 1911 Isodrusus debilis, sp. n. [Sharp]. (Tab. VIII. figg. 32, 32a; 32b, wing.) 1 Isodrusus debilis Isodrusus debilis sp. n. Tab. VIII. figg. 32, 32a; 32b, wing. coleoptera-v4p3-fig-t8f32 coleoptera-v4p3-fig-t8f32a coleoptera-v4p3-fig-t8f32b Sharp ex Champion Champion Sharp Isodrusus debilis Isodrusus debilis sp. n. 1911 Biologia Centrali-Amer. vol. 4, pt. 3 208 Subdepressus, ferrugineus, .... Long. .... Hab. GUATEMALA, San Gerónimo (Champion). Guatemala San Gerónimo Champion Champion Antennæ very short, joints.... Four specimens... Champion Champion May 1911 4. Naupactus (?) cinerascens. species 4 Naupactus cinerascens Naupactus cinerascens (?) Naupactus cinerascens, Perroud, Ann. Soc. Linn. Lyon, (2) i. p. 454 (1853)1; Mélanges Ent. ii. p. 702. Naupactus cinerascens Naupactus cinerascens Perroud Perroud Ann. Soc. Linn. Lyon (2) i p. 454 Mélanges Mélanges Ent. ii p. 70 Hab. GUATEMALA1 2 Guatemala The insect is stated to be .... Supplement to the Thecesterninæ and Otiorhynchinæ*. THIS Supplement to the subfamilies.... Champion Champion Dec. 1911 THECESTERNINÆ. Subfamily Thecesterninæ THECESTERNUS (p. 86).p.86 genus Thecesternus Thecesternus Thecesternus humeralis (p. 86).p.86 species Thecesternus humeralis Thecesternus humeralis Mr Pierce, in his recent.... INDEX. [Names in small capitals refer to Families, etc.; those in roman type to the chief reference to each species included in the work; those in italics to species incidentally mentioned, synonyms, etc.] PRINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET.