Extracted from Jonathan Koch, James Strange, Paul Williams. 2012. Bumble Bees of the Western United States. A product of the U.S. Forest Service and the Pollinator Partnership with funding from the National Fish and Wildlife Foundation|
Suckley cuckoo bumble bee
Select food plant genera:
Aster, Centaurea, Cirsium, Trifolium,
Distribution: Pacific coast east to Nebraska; from New Mexico
north to Alaska
Can be confused with
Face black, top of head yellow or black, T1-2 black,
T3-5 predominately yellow.
Hind tibia with outer surface convex and densely hairy.
Hair of face black. Hair behind head predominately
black. T6 curled very strongly under abdomen and
pointing anteriorly, S6 ending distally with a shiny
triangular spine, the lateral keels large. Hair long and