A monograph of the North American Proctotrypidae
By: by William H. Ashmead.
Series: CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches -- no. 00965; CIHM/ICMH microfiche series -- no. 00965
Publisher: G.P.O.
Published: 1893
Place of publication: Washington
Language: eng
Format: Microform
Number of pages: 268
Subjects: Hymenoptera -- North America.; Hyménoptères -- Amérique du Nord.