10 LAMELLicoRNiA. [Cojrriii. 



obliquely for some distance below the dung which they frequent in order 

 to deposit their eggs in safety. 



C. lunaris, L. Suboblong, convex, of about the same size as 

 Geotrupes stercorarius, entirely black, shining, with the under-side of 

 head and anterior femora, and sides of the pro- meso- and metasternum 

 clothed with ferruginous hairs ; head semicircular in front, with a frontal 

 horn, and with a somewhat uneven raised margin, which is sharply 

 incised in centre ; thorax strongly reflexed in front, rather deeply 

 channelled longitudinally, differing in the sexes ; scutellum apparently 

 wanting ; elytra strongly striate, with the striae very feebly, and in some 

 cases almost imperceptibly, crenate, interstices slightly convex, sparingly 

 and exceedingly finely punctured ; pygidium visible, strongly reflexed, 

 coarsely punctured ; legs black, tarsi clothed with reddish hairs. L. 

 14-20 mm. 



Male with a long pointed horn on the head, which is, as a rule, very 

 slightly recurved towards apex ; at its base on the inner side are two 

 small teeth, and the whole inner surface is rugose and uneven; the 

 thorax is deeply excavated on both sides in front, and furnished at the 

 sides of the excavation with a broad and short, but very distinct, horn, 

 or horn-like prominence. 



Female with a short horn on head which is emarginate at apex, and 

 the thorax very closely punctured in front with two shallow impressions 

 answering to the excavations in the male, on each side of which is a 

 more or less obsolete prominence ; occasionally these are almost wanting, 

 and the depressions are only feebly indicated. 



The formation of the thorax is variable, and occasionally small 

 specimens of the male are found which have the thorax formed as in the 

 female, and the honi on the head short as in that sex ; the apex of the 

 horn, however, appears not to be emarginate in the male, even in these 

 specimens, but always more or less acuminate ; in no case does the female 

 ever present the formation of the male thorax. 



Sandy places ; in dung ; local, but sometimes not unccommon where it occurs ; 

 Greenwich, Charlton, Birch Wood, Bexley, Chatham, Croydon, Richmond ; Bungay, 

 Suffolk ; Bournemouth ; Shoreham ; Bath (common in one field only, R. Gillo) ; Whit- 

 more, Staffordshire (Chnppell). 



ONTHOPHAGUS, Latreille. 



This genus is one of the largest in point of numbers that are found 

 among the Scarabeeida? ; it contains upwards of three hundred and fifty 

 species ; these are found chiefly in hot and tropical countries, and appear 

 to be more characteristic of the Old than the New World, although this 

 may perhaps be found not to be really the case; the species are distin- 

 guished by their ovate and rather depressed form and almost crescent- 

 shaped thorax, which is long in proportion to the elytra ; the third joint 

 of the labial palpi is obsolete, and the tarsal claw,* are distinct, and 

 situated at the end of a rather long onychium. 



