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BC Ministry of Environment: BC Species and Ecosystems Explorer--the authoritative source for conservation information in British Columbia. |
Hobbs, G. A. 1966. Ecology of Species of Bombus Latr. (Hymenoptera: Apidae) in Southern Alberta. V. Subgenus Subterraneobombus Vogt The Canadian Entomologist 1966, 98:(3) 288-294, |