Nearctic wasps of the subfamilies Pepsinae and Ceropalinae
By: by Henry Townes.
Series: United States National Museum bulletin -- 209.; Bulletin (United States National Museum) -- no. 209.
Publisher: Smithsonian Institution
Published: 1957
Place of publication: Washington
Language: eng
Number of pages: 286
Subjects: Spider wasps.
Notes: Includes index.