Cushman, Robert Asa,  1880- <br/><br/>
North American ichneumon-flies :  new and described with taxonomic and nomenclatorial notes / 
Robert Asa Cushman 
 - Washington :  U.S. National museum,  1921. 
 -  24 cm. 
<br/><br/> In U.S. National museum. Proceedings. Washington, 1921 v. 58, p.251- 292 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ichneumonidae.
<br/><br/><label>Dewey Class. No.: </label>P 595.79 C87