PLATE lo 

 Diachasma tryoni: 



A. — Freshly hatched larva with its mandibles actually embedded in the body of a 

 newly hatched but dead larva of Opiiis humilis. Xioo. 



B. — ^Newly hatched larva with its mandibles closed, showing ventral serosal material 

 surrounding the body and the two gill-like appendages on the first body segment. 



X loo. 



(296) 



