BugGuide (2015): "Has declined severely at the northern margin of its range, where now absent from or at best very rare at many historical localities, but still routinely found in its core range to the south as evidenced by the many BugGuide images. Despite its name this species is not our most widespread species, as it is now rarely encountered in the northern portion of its historical range."
Nests are categorized as existing cavities, and social behavior is categorized as primitively eusocial or semisocial (Selfridge et al., 2017).
Parasitized by the locally rare Variable Cuckoo Bumble Bee.
There are 166 records in the project database.
| GA | AL | WA | FR | CL | MO | HO | BA | BC | HA | CE | PG | AA | CV | CH | SM | KE | QA | CN | TA | DO | WI | SO | WO |
