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.  

New Study Shows 57% Decline In Western Bumble Bee

Western Bumble Bee (Yosemite National Park Bumble Bee Guide

Oregon Invasive Species: Bumble Bees and Bureaucrats

California farmers relieved bumble bees not listed as endangered — for now, Orchards, Nuts & Vines

NCC: Land Lines The buzz about bumble bees

Western Bumble Bee (Bombus occidentalis), Edgewood, BC - Ju…

Western Bumble Bee

Bumblebee blues: Pacific Northwest pollinator in trouble

Bombus occidentalis - Insects of the Greater Yellowstone Ecosystem