6 insecta. 



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* . 



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

 placed by Fabricius among the Ateuchi, are distinguished from them 

 by the intermediate tibise, 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 



Sisyphus, Lat. 



The Sisyphi differ from the other Coprophagi in their antennae, 

 which consist of but eight joints, and in their abdomen, which is tri- 

 angular. The four last legs are long and narrow, their thighs cla- 

 vate. The body is short and thick ; no scutellum f . 



CiRCELLIUM, Lat. 



The body hemispherical and convex ; the abdomen almost semi- 

 circular, and the lateral edges of the thorax straight or not dilated, 

 or but slightly, in the middle. No scutellum. Five or six denta- 

 tions in the epistoma J. 



CoPROBius, Lat, 



No scutellum ; the body ovoid, not arched, or but slightly so : mid- 

 dle of the lateral margins of the thorax dilated into an obtuse or 

 rounded angle, abdomen nearly square ; epistoma bidentate. These 

 Insects are more particularly proper to the western continent §, 



Those species, in which the four posterior tibiae are proportionally 

 shorter, dilated, or remarkably widened at the extremity, and the 

 first joints of the tarsi are broader, form the genus Ch(sridium of 

 MM. Lepeletier and Serville — Encyc. Method.; — we will also unite 

 to the Coprobii the Hyboma of the same authors. 



Another suligcnus allied to the preceding, the species of which are 

 also proper to America, that which they call JEschrotes, but Avhich 

 had been previously published by Dalman — Ephcm. Entom., 1824 — 

 under another name, that of 



EURYSTERKUS. Dttlm. 



Differs from the preceding subgenera in the presence of a scutel- 



* Tlie Ateuchi sinuafus, pihtlariits, flagellaius, Leei, Kanigii, cupreus, profanus, 

 &c., Fab,; the Sc. fidgiilus, Oliv,, &c. The Ateuchi of Fabricius, proper to Ame- 

 rica, belong to other subgenera. M, Mac Leay — Hor. Entom., I, pars II, p. 510 

 — still retains the Gymnopleuri, the Ateuchi, or his Scaraba;i, but forms a section 

 of them, of which he points out the species. 



-f- Ateuchus Schcejferi. Fab.; — Sc. longipes, Oliv,, and some undescribed species 

 from the Cape of Good Hope, 



X The Ateuchi, Bacchus, Hollandiee, Fab. 



f The 4, volv^ns, viohQeowj (riangulms, 6-punctatvs, &c. Fab, 



