April, '15] 



McCOLLOCH: CHINCH BUG EGG PARASITE 



251 



Fig. 11 — Different stages of Eumicrosoma benefica Gahan. (A) Egg. (B) 

 First stage larva. (C) Second stage larva. (D) Pupa. All greatly enlarged, the 

 hairUne being Vio nim. magnified to the same scale as the object. (Original.) 



