BEETLES. 73 



* 0. imcliicornia, Linn. (Plate VII., Fig. 11). Pronotum 

 entirely black. AVing-cases brownish-yellow, sprinkled with 

 black. The horn on the head of the male is acute and erect. 

 The female has two stout transverse ridges and an elevation in 

 the middle of the pronotum. The smaller male specimens 

 have often only two slight elevations on the pronotum, and 

 a short horn, or only an obtuse elevation on the front of 

 the head. It is the commonest of the genus found with us. 



0. camclus, Fabr. (Plate VII., Fig. 12). Black and hairy, 

 with two distinct transverse ridges on the head, the posterior 

 of which terminates in two horns in the male. The pronotum 

 has four elevations in both sexes. It is found in the dung 

 of cattle from April to September, and inhabits the east of 

 Central Europe. 



0. (Laccohius) schreberi, Linn. (Plate VII., Fig. 13). Black 

 and shining. The elytra are slightly ridged and striated, with 

 four red spots. The legs are also red. The pronotum is 

 margined at the base, with rounded cavities on the lower 

 surface to receive the clubs of the antenuii^. It is common 

 in many parts of the Continent, but is not found in Britain. 



Genus Oniticellus, Lep. and Serv. 



Body elongated, oval. Antennae with eight joints. The 

 clypeus is not emarginate in front. The eyes are completely 

 divided into two. The scutellum is small, but distinct above. 

 The pronotum is large and circular, and is broader than the 

 narrow wing-cases. The front tibijE have four teeth on the 

 outer side. Their habits are the same as those of the last 

 genus. 



0. Jlavipes, Fabr. (Plate VII., Fig. 14). This is a long, 

 depressed, yellow beetle, with the wing-cases, sternum, and 

 abdomen, clouded with brown. The middle of the pronotum 



