Ctenocolletes nicholsoni is a species of bee in the family Stenotritidae. It is endemic to Australia. It was described in 1929 by American entomologist Theodore Cockerell.
The body length of males is 17âÂÂ19 mm; that of females 18âÂÂ20 mm.
The species occurs in southern Western Australia. The holotype was collected at Geraldton. Flowering plants visited by the bees include Acacia, Wehlia, Calytrix, Scholtzia, Ptilotus and Baeckea species.
The adults are solitary, flying mellivores that nest in burrows dug in soil; the larvae are sedentary.