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Show 294 INSECTA. distinguishes the Carabici of the third and last division of h' tion, which, by the form of the body and the labrum, resemb~ 18 se~. o f t h e prece d m· g d ·I vl·~ ;·I on. e those 0PnoNus, Zieg. Dej. The four anterior tarsi of the males strongly dilated ore 'd · ' Vl ently wide1·, and generally furnished beneath with numerous and l · r • . b compact lairs, •ormmg a contmuous rush; the penultimate joint is not b'l bate. The last joint of the exterior palpi truncated or very b to• ' o tuse. The body IS very finely punctated above, and the thorax m f ·r ost re. quently cordi.orm, and truncated posteriorly(!). STENOLOPHus, Zieg. Dej. The Stenolophi only differ from the Ophoni in the form ofth I . . . f e pe. ~u t1mate JOint o the four anterior tarsi, at least in the males, an~ m some even of the posterior; it is divided down to the base into two lobes(2). AouPALI•us, Lat.-Stenolophus, Dej. . The fo~r a~terior tarsi of the males differing but little from the mte~mech~te ~oints; r~under, almost granular, and pilose; exterior palp1 termmatmg by a JOint with a pointed extremity. They are very small insects, and seem to be allied to Trechus(3). 4. The fourth section, that of the Sx~PLIOIMANI( 4), approaches the (1) See Catalogue, &c., Dejean, p. 13. (2) Stenolophus vaporariorum, Dej. lb.; Carabus vaporariorum, L.; Panz., Faun. Insect. Germ., XVI, 7; llarpalus saponarius, Dufour. Senegal. . (3) The Stenolophi of the Catalogue, Dej., the preceding one excepted. We w•ll.name, among others, the Carabus meridianus, Lin. and Fab., and the C. ttl· perttnus of Panzer, XXXVII, 21. • C 4) !his ~ection, in the system of Dejean, forms his tribe of Carabiquu Ff!Oo mens, m wh1ch-Spec. Gen. des Coleop. III-he has established several new gen.era. Those male Feroni;:e, in which the two first joints of the two anterior tars• are alone dilated, a1·e comprised i.n the genera PoGoNus, CAnnu.m:Ros, B£· RI~us, and~ AT~onus. In the two first, the last joint of the l:l.bial palpi is oval or pomte~, wlulst m the other two it is almost cylindrical, truncated at the extremity, and sl,ghtly securiform. The second-Daptus cMoroticus .Fischer-differs from the f. irst in. t.h e thorax wI 1 1· c 11 I·S convex, cord '1f io rm, and narr' owed poste!'l·o rly. In Ba:tpus, lt ts convex and almost oval. That of Patrobus is plane, narrowed posteriOrly and more or less cordiform. In the other male Feronia: the three first joints of the anterior tarsi are dilated. A first subdivision comprehends those F'el'Onia: the hooks of whose tarsi are den· ta~ed, and among these the genus DoLxcnus is the one in which the tooth of the middle of the emargination is simple, that is to say, entire. That which he names COLEOP'f ERA. 295 ceding in the manner in which the elytra are terminated; but the pre anterior tarsi· a Io ne are <1 1'1 ate d m· t 11 e males, w·i thout however tWO • forming a square or orl.ncular palette; sometimes the three first pusro~rcuus, is identical with my Ctenipus: to this he refers the Sp!Lodrus terri· u)a of his catalogue. His new genus PmsTODACTYLA. closely resembles Taphria, but the last joint of the pal pi _is elongat7d and almost cylindrical, and the thorax is oval. He describes but a smgle spec1es. Among the feronia: in which the hooks of the tarsi are simple, four genera, onuuus, OtrsTnoPus, M:AsonEus, and ANTARCTIA, are removed from all the others by the absence of a tooth or lobe in the middle of the cmargination of the mentum. The first, of which Count Dejean has only seen the females, is very distinct by the length of the first joint of the antenna: which equals that of the three following ones; and then by its pal pi the last joint of which is strongly securiform. That naturalist places this genus directly after Sphodrus; perhaps it may come among the Patellimani, and approximate to Rembus and Dica:lus. The second genus, OtiSTitOPUS, belongs to that division in which the three first joints of the anterior tarsi of the males are elongated, and very slightly triangular or almost square-its type is the .!J.gonum rotundatum of Sturm. The other two re-enter the division of those in which the three first joints of the two anterior tarsi of the males are but slightly elongated; they are as long as they are wide and strongly triangular or corrlifo1·m. The thorax in Masoreus is transversal, rounded laterally, and slightly prolonged in the middle. That of .!J.ntarctia is more or less square or cordiform, and slightly or not all transversal. The llarpalus circumfusus of Ger· mar, referred by us to T.&TRA.GONOD.ERus, is an Antarctia. Six other genera, TmooNOTOMA., CATADR011tus, LEsTicus, DxsTmous, ABA.CETus, and )(IcnocEPJIALUS, form, among the 1-'erouia: with tarsi analogous to those of the I11St, a small section, the character of which consists in a trilobate Ol' slightly emarginated mentum•. The last genus, that of Microcephalus, is very distinct from the others on account of its exterior palpi, all of which are terminated by a securiform joint. The first is similarly distinguished, inasmuch as the termination of the labial palpi of the males is the same. The Omaseus viridicollis of Mac LeayAnnul. Javan.-is congeneric. In the genera Catadromus and Lesticus, the last joint of the same palpi is, however, slightly securiform, or becomes gradually thickened towards the extremity. The intermediate lobe of the mentum projects and almost in a point in the first, and is but slightly elongated and almost truncated in the second, which, like the preceding, consists of Insects proper to India. The laat joint of the labial palpi in JJistrigus and .O.bacetus, is almost cylindrical. The intermediate lobe of the emargination of the mentum is almost null in the former; in the latter it is very apparent and rounded. These Carabici are, as yet, foreign to Europe and America. The Scarite ltottentot of Olivier, which we have placed in the subgenus Feronia, is removed from the species that formed the genus Steropus, by its intermediate tibiz which are strongly arcuated. It is from this character that Count Dejean has • The ordinary tooth in the middle of the mentum is very large, and thus forms a lobe which diminishes the extent of the emargination. |