REVISION OF THE PARASITIC HYMENOPTEROUS 



INSECTS OF THE GENUS APHYCUS MAYR, 



WITH NOTICE OF SOME RELATED 



GENERA 



BY 



P. H. TIMBERLAKE 



Of the Bureau of Entomology, United States Department of Agriculture 



No. 2136. From the Proceedings of the United States National Museum, 

 Vol. SO, pages 561-640, with Plates 26-31 



Published May 31, 1916 







Washington 



Government Printing Office 

 1916 



