404 INSECTA. 



Blanc, IV, p. 272, All. d'Hist. .Nat. et d'Andq., II, Iviii, 10, 

 is green with a golden tinge, while the former is black. The 

 epistoma has six dentations in all, but here the vertex presents 

 two little eminences or tubercles, while that of the other or the 

 A. des Egyptkns exhibits a more slight and elongated, smooth, 

 and very glossy projection. The thorax, except in the middle 

 of its back, is entirely punctured and even scabrous on the sides, 

 with dentated margins. The intervals of the elytral striae are 

 besides finely scabrous, with numerous and tolerably wide, deep 

 punctures. The internal side of the two anterior tibiae pre- 

 sents a series of small teeth. In the Ateuch. sacer this same side 

 usually presents two stout teeth. 

 Ateuchi — the S. ^scidapius, and another species, the Hippocrates 

 — in which the thorax and abdomen are shorter, 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(l). 



Those in which the exterior side of the elytra is strongly emargi- 

 nated near the base, are now the 

 f 



GyMNorLEURUs, Illig. 



The four posterior tibiae are usually simply ciliated or furnished 

 with small spines, and the last joint of their tarsi is as long as all the 

 preceding ones taken together, or longer. The first joint of the 

 labial palpi is dilated internally, and almost triangular. There is a 

 fossula on each side of the thorax(2). 



Other Coprophagi, very analogous to the preceding ones, and also 

 placed by Fabricius among the Ateuchi, are distinguished from them 

 by the intermediate tibiae, the extremity of which, as well as that of 

 the two last, frequently dilated or clavate, presents two spines or 

 spurs. The epistoma, in several, exhibits but four or two teeth. The 

 first joint of the labial palpi 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 subgenus, 

 the .5. laticoUis, variolosus, semipundatus, miliaris, sanctus, &c., of Fabricius. See 

 Mac Leay, op. cit., and the Entomog. Imp. Uuss., where several species of this 

 and the following subgenera are exactly delineated. 



(2) The Ateuchi siiiuatus, pilularius, Jlagellatus, Leei, Kcenigii, cupreus, pro- 

 fanus, &c., Fab.; the Sc. fulgidus, Oliv., &,c. The Ateuchi of Fabricius, proper 

 to America, belong to other subgenera. M. Mac Leay — Hor. Entom., I, pars II, 

 p. 510 — still retains the Gymnopleuri, the Ateuchi, or his Scarabaei, but forms a 

 section of them, of which he points out the species. 



