Bui. 1066, U. S. Dept. of Agriculture. 



Plate V. 





* 5*-''-' 





*?*§#*! 



a 1 



-,>■ >!*, ■ •«f- r ; - , 





-■- - ■ V- "Xf 



ES33f 



: Mm 



The Black-Walnut Curculio. 



a, Egg in natural position exposed by removing skin of young black walnut; 6, group of 

 egg punctures in half-grown black 'walnut; c, parasitic fly Cholomyia lonc/ipes; d, pupae 

 within pupal cells in earth; e, cocoons of the parasite Thehilochus conotrache li occupying 

 the pupal cells of the curculio after killing and devouring the host larvae. All enlarged. 



