Bombus rotundiceps Friese
rotundiceps Friese, 1916:108, examined
montivolanoides Sakagami & Yoshikawa, 1961:431
shillongensis (Tkalcu, 1974b:334 [Pyrobombus]) examined

DISTRIBUTION: Oriental Region.

Bombus sandersoni Franklin
sandersoni Franklin, 1913:353

DISTRIBUTION: W Nearctic, E Nearctic Regions.