August, '16] 



PENNINGTON: RHOGAS TERMINALIS 



403 



The adult parasites were transferred to separate cages adapted from 

 the cage described by Doten^ (PI. 30). A small piece of sponge soaked 

 with honey water was put in daily. This liquid seemed a satisfactory 

 food, so no other was tried. 



cUoj/oa del 



Fig. 24. Rhogas lerminalis Cress.: a. adult; b. egg; c. puparium. 



Into each of these cages the CirpMs larvae were placed, one at a 

 time. All relations between the parasite and its host were then care- 

 fully observed and recorded, the larva removed to its own cage, and^the 

 appearance and emergence of the subsequent parasite noted. 



This parasite copulates immediately on emerging. The male, when 

 the presence of a female is perceived, shows evident excitement by 



iDoten, S. B., University of Nevada, Tech. Bui. 78, Sept., 1911. 



