Obscure bumble bee (Bombus caliginosus)

Obscure bumble bee (Bombus caliginosus) photo

Photo credit: Jules Evans

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

Identifying Features

Status: Limited range, likely in decline

Obscure bumble bee (Bombus caliginosus) illustration

"Yellow face, back of Thorax black" "Yellow band (sometimes with a central notch anteriorly) on T4"; "Hair can be long and uneven"

Range

Obscure bumble bee (Bombus caliginosus) range map

When to Look

Obscure bumble bee (Bombus caliginosus) range phenology

Floral Associations

Arctostaphylos, Lupinus, Marah, Phacelia, Rhododendron

Look Alike Species

B. vosnesenskii