New York Natural Heritage Program
Northern Amber Bumble Bee
Bombus (Subterraneobombus) borealis Kirby, 1837

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. This bumble bee nests underground (Colla et al. 2011), often using abandoned rodent nests underground in south facing exposures. 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. borealis include vetches, thistles, asters, Prunella, Eupatorium, and Symphytum officinale (Colla et al. 2011). Suitable sites for bumble bees to overwinter may include rotting logs, mulch, or loose soil (Schweitzer et al. 2012).