Rusty-patched bumble bee (Bombus affinis)

Rusty-patched bumble bee (Bombus affinis) photo

Photo credit: Christy Stewart

Bumble bee illustrations: Paul Williams (identification and color patterns) and Elaine Evans (bee body design).

Identifying Features

Status: Rare, Endangered in Canada
Rusty-patched bumble bee (Bombus affinis) illustration Rusty-patched bumble bee (Bombus affinis) illustration 2
"Queen: hair short and even. Hair on head entirely black; emerges early."; "Worker: rusty patch on T2, almost always completely surrounded by yellow hairs."

Range

Rusty-patched bumble bee (Bombus affinis) range map

When to Look

Rusty-patched bumble bee (Bombus affinis) range phenology

Floral Associations

Asclepias syriaca, Ceanothus americanus, Dalea purpurea, Impatiens capensis, Symphyotrichum novae-angliae

Look Alike Species

B. griseocollis, B. bimaculatus