Dumesh, S., Sheffield, C.S. 2012. Bees of the Genus Dufourea Lepeletier (Hymenoptera: Halictidae: Rophitinae) of
Canada. Canadian Journal of Arthropod Identification No. 18, XX May 2012, available online at doi: 10.3752/cjai.2012.20
Dumesh, S., Sheffield, C.S. 2012. Bees of the Genus Dufourea Lepeletier (Hymenoptera: Halictidae: Rophitinae) of
Canada. Canadian Journal of Arthropod Identification No. 18, XX May 2012, available online at doi: 10.3752/cjai.2012.20