Title
The Male of Megachile Nivalis Friese, with an Updated Key to Members of the Subgenus Megachile s. str. (Hymenoptera: Megachilidae) in North America
By
Sheffield, Cory S
Westby, Sue M
Original Publication
Journal of Hymenoptera research
Published by
Washington, D.C, International Society of Hymenopterists, [1992-
Identifiers
BioStor:
https://biostor.org/reference/383