Bumble Bees of Wisconsin – Online guide, information, and ongoing research – UW–Madison

Bumble Bees (Bombus) : USDA ARS

General Information – Bumble Bees of Wisconsin – UW–Madison

Native Bees and Bumble Bees

Frontiers Local influence of floral resource attributes on urban

Bumble Bees of Wisconsin – Online guide, information, and ongoing

Wisconsin Bumble Bee Brigade Tracks Species, 1 Photo At A Time

Wisconsin Bumblebee Observers

PDF) Bees of Wisconsin (Hymenoptera: Apoidea: Anthophila)

Wisconsin Pollinators – Bees, butterflies, and their conservation