United States National Museum 

 Bulletin 216, Part 2 



Ichneumon-Flies of 

 America North of Mexico: 

 2. Subfamilies Ephialtinae 



Xoridinae 

 Acaenitinae 



By HENRY and MARJORIE TOWNES 

 and Collaborators: G. Stuart Walley, 

 Luella Walkley, Dale Habeck, and 

 George Townes 



SMITHSONIAN INSTITUTION • WASHINGTON, D.C. • 1960 



