COLEOPTERA. 



457 



size, especially in America. DynasUs Hercules, a great insect of a 

 fine ebony black, with its elytra of an olive grey, is not rare in the 





Fig. 436.— Head of Oryctes nasicomis, 

 male. 



^^^ 



■w^ 



Fig. 435. — Oryctes nasicomis, male. 



Fig- 437. — Head of Oryctes nasicomis, 

 female. 



Antilles. Its thorax is prolonged into a horn as long as its body, 

 and bent round at the extremity ; its head has also a long horn 

 standing erect. The females want these appendages. Fig. 439 

 represents the Golofa claviger of Guiana. 



The Geotrupes are insects almost as common as the chafers. As 



Fig. 438. — Xylotrupes dichotomus. 



their name reminds us, they make holes in the ground, which they 

 scoop out, particularly in meadows, under cow-dung which has grown 

 72* 



