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.  

Bumble bees and other insects now eligible for protection under

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

Scientists Race to Find Out Why the Western Bumblebee Is

Bumble bees in the last frontier

Bumble Bees of Alaska: A Field Guide (U.S. National Park Service)

Species Illustrations - PNW Bumble Bee Atlas

NCC: Land Lines The buzz about bumble bees

Western Bumble Bee (Yosemite National Park Bumble Bee Guide

Crotch's Bumblebee Los Padres ForestWatch

Species Illustrations - PNW Bumble Bee Atlas

CDFW News CDFW Seeks Public Comment Related to Crotch's Bumble

Colorado's western bumble bee population in rapid decline, future

Western Bumble Bee