New species of North American bees of the genus Dufourea (Hymenoptera, Halictidae) with descriptions of two previously undescribed females /

Bibliographic Details
Main Author:	Bohart, George Edward
Corporate Author:	United States. Science and Education Administration
Format:	Government Document Book
Language:	English
Published:	Washington, D.C. : The Administration, 1980.
Series:	Technical bulletin (United States. Department of Agriculture) ; no. 1618.
Subjects:	Bees > North America. Dufourea.

Evans: US Documents (Annex 5th floor)