Bombus iridis phaceliœ, n. var.—♀. Hair of face black, with a little pale intermixed; yellow hair of thorax in front dense, not at all mixed with black; yellow of scutellum neither divided nor mixed with black; hair on inner side of basal joints of tarsi dark; hair on second and third abdominal segments entirely deep red (much less dense, and not nearly so bright as in B. ternarius), but second with a large bare median triangle; hair of fourth segment and sides of fifth yellow.