^ 



Technical Series, No. 19, Part II. 



U. S. DEPARTMENT OF AGRICULTURE, 



BTJREATJ OF BlSTTOnNlOLOGrY. 



L. 0. HOWARD, Entomologist and Chief of Bureau. 



TECHNICAL RESULTS FROM THE GIPSY MOTH 

 PARASITE LABORATORY. 



II. DESCRIPTIONS OF CERTAIN CHALCIDOID 



PARASITES. 



By J. O. CRAWFOTiT), 



Assistant Curator, Division of Insects, U. S. National Museum. 



Issued April 30, 1910. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



1910. 



