Species are grouped by commonality and and then listed alphabetically (by scientific name - left to right and top to bottom). Only female color forms are shown here - some with more than one color pattern; for some species other color patterns do exist. You can find more information here. There is also an identification guide to females below.
Bumble bee illustrations: Paul Williams (identification and color patterns) and Elaine Evans (bee body design).
Species of Greatest Conservation Need (SGCN)
Most Common Species
Locally Common Species
Van Dyke's bumble bee - Bombus vandykei. This species can be locally common. It has a separate color form not pictured here found in central WA. It can be distinguished from its close look-alike, the yellow faced bumble bee, by the yellow stripe on the abdomen. It is found on the third abdominal (tergal) segment, not the fourth.
Pacific Northwest Identification Guide for Female Bumble Bees
This does not include all color patterns for every species, and is only for females. Click to download a .pdf of this file.