Skip to main content
x

Obscure Bumble Bee

Bombus caliginosus
(Photo: projectnoah.org)
U.S. State
California
Oregon
Washington
Canadian Province
British Columbia
Description

This species occurs along the Pacific Coast, from southern California to southern British Columbia, with scattered records from the east side of California’s Central Valley.

 

Conservation Status

Analyses suggest very high population decline range-wide, including range size reductions, persistence reductions, and relative abundance declines.  The level of population decline is difficult to ascertain, with more surveys  needed within this species’ historic range. This is because the species co-occurs with Bombus vosnesenskii (a very common bee that is difficult to discern from B. caliginosus in the field) which may lead many collectors/observers to mis-identify this species. Read More

 

USA
Canada