Western bumble bee (Bombus occidentalis)
Western bumble bee (Bombus occidentalis)
Population of the Western bumble bee has significantly declined in the late 1990s and the early 2000s. Althogh it is said to be rebounding recently, I have never seen one in my neighborhood, in North Seattle area.
For more details, refer to page 102 of Bumble Bees of the Western United States.
This queen bee is the only western bumble bee I have ever encountered.