Bombus (Pyrobombus) sandersoni Franklin, 1913

Portman, Zachary M., Gardner, Joel, Lane, Ian G., Gerjets, Nicole, Petersen, Jessica D., Ascher, John S., Arduser, Mike, Evans, Elaine C., Boyd, Crystal, Thomson, Robin & Cariveau, Daniel P., 2023, A checklist of the bees (Hymenoptera: Apoidea) of Minnesota, Zootaxa 5304 (1), pp. 1-95 : 31

Bombus (Pyrobombus) sandersoni Franklin, 1913

Counties: Aitkin, Anoka, Becker, Beltrami, Benton, Cass, Clearwater, Cook, Hubbard, Itasca, Kanabec, Kittson, Koochiching, Lake, Lake of the Woods, Pine, Polk, Saint Louis.

Comments: Historically, B. sandersoni has been frequently confused with other species, particularly B. vagans (Plowright and Pallet 1978, Milam et al. 2020). Review of specimens reveals that B. sandersoni is primarily a northern species in Minnesota, but we have confirmed specimens as far south as Anoka County, just north of the Twin Cities.