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Show 404 INSECTA. Blanc, IV, p. 272, Atl. d'Hist. Nat. et d' Antiq., II, !viii 10 is green with a golden tinge, while the former is black. 'Th; epistoma has six dentations in all, but hue the vertex present two little eminences or tubercles, while that of the other or th: .fl. des Egypt'iens exhibits a more slight and elongated, smooth and very glossy projection. The thorax, except in the middl: of its back, is entirely punctured and even scabrous on the sides with dentated margins. The intervals of the elytral strire ar: besides finely scabrous, with numerous and tolerably wide, deep punctures. The internal side of the two anterior tibie£ pre· sents a series of small teeth. In the Jlteuch. sacer this same side usually presents two stout teeth. Ateuchi-the S. JEsculapius, and another species, the Hippocrates -in which the thorax and abdomen are shortet·, rounder, and more convex, and in which the first joint of the labial palpi is also shorter, wider, and in the form of a reversed triangle, form the genus Pachy. soma of Kirby( 1 ). Those in which the exterior side of the elytra is strongly emargi· nated near the base, at·e now the GYMNOPLEURUS, Illig. The four posterior tibire are usually simply ciliated or furnished with small spines, and the last joint of their tarsi is as longasallthe preceding ones taken together, or longer. The first joint of the labial pal pi is dilated internally, and almost triangular. There is a fossula on each side of the thot·ax(2). Other Coprophagi, very analogous to the preceding ones, and also placed by Fabricius among the Ateuchi, are distinguished ft·om them by the intermediate tibire, the extremity of which, as well as that of the two last, frequently dilated or clava,te, presents two spines or spurs. The epistoma, in seyeral, exhibits but four or two teeth. The first joint of the labial pal pi is always larger than the second, and dilated externally. The third and last joint is distinct. First comes ( 1) In addition to the Ateuchi above mentioned, refer to the same subgenu~ the .9.. laticollis, variolosus, semipunctatus, miliaris, sanctus, &.c., of :Fabricius. See Mac Leay, op. cit., and the Entomog. Imp. Huss., where several species of th~ and the following subgenera are exactly delineated. ' (2) The Ateuchi sinuatus, pilularius, jlagellatus, Leei, Kcenigii, cupreus, prtt far~us, &.c., Fab.; the Sc. fulgidus, Oliv., &c. The Ateuchi of Fabricius, proper to America, belong to other subgenera. M. Mac Lcay-Hor. Entom., I, parsll, P· 510-still retains the Gymnopleuri, the Ateucbi, or his Scaraboei, butformsa section of them, of whiah he points out the species. COLEOI,TERA. 405 Sxsypnus, Lat. The Sisyphi differ from the other Coprophagi in their antennre which consist of but eight joints, and in their abdomen, which is tri~ angular. The fout·last legs are long and narrow, their thighs clavate. The body ~s short and thick; no scutellum( I). . CmcELLIUM, Lat. The body hemispherical and convex; the abdomen almost semicircular, and the lateral ed1~es of the thorax stt·aight or· not dilated, or but slightly, in the middle. No scutellum. Five or six dentations in the epistoma(2). CorRonws, Lat. No scutellum; the body ovoid, not arched, or but slightly so; middle of the lateral margins of the thorax dilated into an obtuse or rounded angle, abdomen nearly square; epistorna bidentate. These Insects are more particularly pt·oper to the western continent(3). Those species, in which the four posterior tibire are proportionally shorter, dilated, or remarkably widened at the extremity, and the first joints of the tarsi are broader, form the genus C!treridium of MM. Lcpeletier and Serville-Encyc. Method. ;-we will also unite to the Coprobii the Hyboma of the same authors. Another subgenus allied to the pt·eceding, the species of which are ' also proper to Amel'ica, that which they call JEschrotes, but which had been previously published by Dalman-Ephem. Entom., 1824 -under another name, that of EuRYSTERNus, Dalm. Differs from the preceding subgenera in the presence of a scu tellum. The body is also an oblong oval, and plane above; the sides of the thorax are obliquely and abruptly truncated. The intermediate coxre are directed longitudinally with the body, and parallel to its sides. In all the following Coprophagi, the four posterior tibire are always dilated at their extremity, and almost in the form of an elongated triangle; the intermediaries, as in the last, terminate in two stout spurs or spines; but the head or thorax, or both, in the males, (1) .!lteuchus ScluB.fferi, Fab.;-Sc. longipes, Oliv., and some undescribed speciea from the Cape of Good Hope. (2) The Ateuchi, Bacchus, Hollandire, Fab. (3) The .0.. volvens, violaceus, triangularis, 6-punctatus, &.c., Fab. |
