COLEOPTBRA« 7 



lum. The body Is also an oblong oval, and plane above ; the sides 

 of the thorax arc obliquely and abruptly truncated. The interme- 

 diate coxae are directed longitudinally with the body, and parallel to 

 its sides. 



In all the following Coprophagi, the four posterior tibiae are al- 

 ways dilated at their extremity, and almost in the form of an elon- 

 gated triangle ; the intermediaries, as in the last, terminate in two 

 stout spurs or spines ; but the head or thorax, or both in the males, 

 presents horns or projections which distinguish them from the fe- 

 males. In several, the three last joints of the antennas are semi- 

 cupular and concentrically piled or fitted into each other. They 

 compose the genera Onilis and Copris of Fabricius. 



Two subgenera with a foliaceous antennal club present a charac- 

 ter which, in this section, is exclusivly peculiar to them : the third 

 joint of the labial palpi is but slightly or not at all distinct, and the 

 second is larger than the first. 



Oniticellus, Zieg. Dej. 



The body is oblong and depressed ; the thorax large, nearly oval, 

 and almost as long as it is wide, and always smooth. The scutellum 

 is distinct. vSimple and elevated lines or tubercles on the head distin- 

 guish the males from the females *. 



Onthophagus, Lat. — Copris, Fah. 



No scutellum. Their body is short, thorax thick, broader than 

 long, either almost semi-orbicular or nearly orbicular, but strongly 

 emarginated or truncated before. The head, and frequently the tho- 

 rax, of the male is furnished with homs. 



O. taurus ; S.taurus, L. ; Oliv. Col. I, 3, viii, 63. Small; 

 black ; two semicircular horns on the head of the male ; two 

 transverse and elevated lines on that of the female. In cow- 

 dung. 



O. nuchicornis ; S.nuchicornis, L.; Panz., Faun. Insect. Germ. 

 I. and XLIX, 8. Small ; black ; elytm grey with little black spots ; 

 a compressed laminiform projection terminating in an almost 

 straight point on the hind part of the head of the male ; two ele- 

 vated and transverse lines on that of the female ; a tubercle on 

 the anterior of the thorax. V/ith the preceding. 



Africa and India produce several other species, some of 

 which are very brilliant, but they are all small f . 



Two subgenera presenting a scutellum, or sutural hiatus indi- 

 cating its place, and which the anterior legs are frequently destitute 

 of tarsi, and frequently also longer, more slender and arcuated in the 

 males, are distinguished from all other Coprophagi by the form of 

 their antennal club ; its first joint, or the seventh of the whole num- 



* Dej., Calalog:ue, i^;r. p. 53. 



t Dej., lb. See Lat., Gcner. Crust, et Insect., II, p. 83. 



