New York Natural Heritage Program
American Bumble Bee
Bombus (Thoracobombus) pensylvanicus (De Geer, 1773)

Habitat [-]
Bumble bees are generalist foragers and need nesting habitat in the spring, flowers for adult and larval nutrition throughout the spring and summer, and sites for queens to overwinter. Bumble bees that nest above ground such as this species often use long grass or hay stacks. Foraging habitat should include flower abundance and species richness with overlapping blooms to ensure nectar availability throughout the growing season (Schweitzer et al. 2012). Select food plants for B. pensylvanicus include vetches, clovers, goldenrods, Hypericum, and Eupatorium(Colla et al. 2011). Suitable sites for bumble bees to overwinter may include rotting logs, mulch, or loose soil (Schweitzer et al. 2012).