A monograph of the western hemisphere bumblebees (Hymenoptera: Apidae; Bombinae) : III. The genus Pyrobombus, subgenus Cullumanobombus /

Bibliographic Details

Main Author:	Milliron, Herbert Edwards
Format:	Book
Language:	English
Published:	Ottawa : Entomological Society of Canada, 1973.
Series:	Memoirs of the Entomological Society of Canada ; no. 91.
Subjects:	Pyrobombus. Cullumanobombus. Bumblebees.