Home > Hymenoptera of America North of Mexico- Synoptic Catalog
Product Description
K. V. Krombein & B. D. Burks, 1967
(Contributions by many others)
United States Department of Agriculture
Agricultural Monograph No. 2, second supplement
U. S. Government Printing Office.
Your purchases and donations support our education outreach programs. We educate over 7,000 students about insects each year thanks to your generosity.