A monograph of the North American Proctotrypidea.
By: By William H. Ashmead.
Series: Smithsonian Institution.  United States National museum.  Bulletin 45; Bulletin of the United States National Museum -- 45.
Publisher: Govt. print. off.
Published: 1893
Place of publication: Washington
Language: eng
Number of pages: 472
Subjects: Proctotrupoidea.; Hymenoptera -- North America.
Notes: "Literature and abbreviations": p. 453-457.