Bombus (Bombus) affinis Cresson, 1863
Counties: Aitkin, Anoka, Becker, Blue Earth, Carver, Cass, Clay, Crow Wing, Dakota, Douglas, Fillmore, Freeborn, Goodhue, Hennepin, Houston, Hubbard, Isanti, Kandiyohi, Le Sueur, Morrison, Olmsted, Ramsey, Rice, Scott, Sherburne, Stearns, Wabasha, Washington, Winona, Wright .
Comments: This species has been listed as federally endangered (U.S. Fish and Wildlife Service 2017). Though it has experienced precipitous declines over most of its historic range, it continues to persist in southeastern Minnesota.