Western Bumble Bee

Historically broadly distributed in western North America. Bombus occidentalis occurs along the Pacific coast and western interior of North America, from Arizona, New Mexico and California, north through the Pacific Northwest and into Alaska. Eastward, the distribution stretches to the northwestern Great Plains and southern Saskatchewan.  

Climate change hits bumblebees as world warms

Western Bumble Bee - Bombus occidentalis - worker, I checke…

Western Bumble Bee

Species profile: Suckley's cuckoo bumble bee

Bumble Bee CBA - Rights-of-Way as Habitat Working Group

American Bumble Bee

Bumblebee blues: Pacific Northwest pollinator in trouble

Climate, pesticides, and landcover drive declines of the western

Study: Decline of Native Western Bumble Bee Linked to Climate

Is this a Western Bumble Bee / Bombus occidentalis? : r/bees