Trichocolletes capillosus is a species of bee in the family Colletidae and the subfamily Colletinae. It is endemic to Australia. It was described in 2012 by Australian entomologists Michael Batley and Terry Houston.

Etymology The specific epithet capillosus (Latin: 'very hairy') refers to the dense hair on the male femora.

Description The body length is about 11–12 mm. The eyes are hairy. Colouration is mainly black and orange-brown, with narrow silver metasomal bands and orange to pale brown hair.

Distribution and habitat The species occurs mainly in the Avon Wheatbelt bioregion of Western Australia. The type locality is Coomberdale.

Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Gastrolobium crassifolium as well as Daviesia and Pultenaea species.

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