Bui 38, New Se;ies : Div. of Entcmolocry. U. S Dept. o' Agriculture. 



Plate II. 



a. 



Fig. ].—(/. Larva natural size i: b, <■. mandibles of larva (enlarged). 



a a 



Fiq, 2.— Pupa: a. lateral view, h, dorsal view. 



Rhinoceros Beetle iDynastes tityus). 



