Hymenoptera of America north of Mexico
Subtitle: synoptic catalog
By: prepared cooperatively by specialists on the various groups of hymenoptera under the direction of C.F.W. Muesebeck, Karl V. Krombein and Henry K. Townes.
Series: United States. Dept. of Agriculture. Agriculture monograph ;; no. 2.
Publisher: United States Government Printing Office
Published: 1951
Place of publication: Washington
Language: eng
Number of pages: 1420
Subjects: Hymenoptera -- North America.
Notes: Supplement, no.-    issued Sept. 1958--