Known locations with biophysical regions depicted by black lines and counties by gray lines.
This is one of the most common and widespread bumble bee species in Vermont. Though found as far south as Illinois, populations are concentrated in the northeastern United States. B. ternarius is often found in urban settings and gardens and is one of the few species of bumble bee that is easy to identify. Queens emerge early and colonies persist into October.
Select food plants: Asclepias (Milkweeds), Rubus, Solidago (Goldenrods), Rhododendron, Vaccinium
Tongue Length: short
Nest: underground
Similar Species: B. rufocinctus
General Phenology:
queens: April – September
workers: May – September
males: July – October
