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.  

Scientific Illustration

COSEWIC Assessment and Status Report on the Western Bumble Bee

Wyoming Researchers Search For Answers On Why Western Bumblebees

Western Bumble Bee - Encyclopedia of Life

Western Bumblebee (Bumble bees of Bandelier National Monument

Western Bumble Bee Making a Comeback - Bug Squad - ANR Blogs

Bumble Bee Atlas U.S. Fish & Wildlife Service

Raising Bumble Bees - SARE

This weekend, BUGfest will celebrate the western bumble bee

Bombus occidentalis - Wikipedia