OF WASHINGTON, VOLUME XV, 1913 



155 



The parasite was apparently about one-third free. I hoped to 

 determine the manner in which the parasite gets into its position 

 beneath its host without losing its hold, and to this end carried the 

 specimen in a vial in my pocket for the rest of the day examining 

 it frequently. But unfortunately it seemed in some way to have 

 been injured, probably when the elytra of the host were cut, and 

 succeeded in getting no further. When the next morning it was 

 still in the same position, I preserved host and parasite, after first 



Fig. 1. Perilitus americanus Riley larva issuing from Mcgilla maculata. 



sketching the specimen. The accompanying figure shows the 

 relation of parasite to host (fig. 1). 



All of the coccoons of Perilitus which were collected in the fall 

 of 1912 produced adults during that season, and these adults read- 

 ily attacked coccinellids. It seems probable, therefore, that tin- 

 species hibernates as larvae within the host. 



PANISCUS GEMINATUS Say. 



On August 22, 1912, under a band on an apple tree I found a 

 Lepidopterous larva bearing just back of its head a pecular ex- 



