ENTOMOLOGICAL CABINET. 



BOLBOCERUS MOB1LICORNIS. Kirlnj. 

 Bolbocerus testaceus. Fdbr. Steph. 

 Odontams mobilicornis. Megerle. 



Black or testaceus : head in the male furnished 

 with a long horn inserted near the centre : antennae 

 short, the club large and globose : thorax nearly 

 square* and in the larger and more perfect specimens 

 with four dentiform horns, the intermediate pair 

 being the shortest, and arranged in a transverse line 

 on the anterior part ; but in the smaller specimens 

 they are merely indicated by raised pustules, and re- 

 semble the females of the larger variety; the middle 

 of the thorax has a deep and wide channel : the 

 elytra are nearly globose, striated and deeply punc- 

 tured : scutellum large and punctured : body covered 

 with long and tine hair : the thighs and tibia mode- 

 rately long, the latter with strong teeth on the outer 

 edge, the tarsi of five joints and very long ; the claws 

 are also long and furnished with long and fine hair. 



Length from 3 to 4£ lines. 



Inhabits heaths beneath the dung of cattle, and 

 flies in the evening. 



Little is known of the habits of this very rare 

 British insect, but in general when they have been 

 discovered were rather plentiful. Joseph Sparshall, 

 Esq. oi Norwich, once took several specimens in 

 Norfolk, and supplied Dr. Leach with a fine scries, 

 which are preserved in the collection. 

 11-2 



