Description: Bombus vosnesenskii, m, back, MAriposa, CA 2017-07-19-13.52. Date: 17 September 2017, 14:19. Source:
Bombus vosnesenskii, m, back, MAriposa, CA_2017-07-19-13.52. Author:
USGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA.