Trichocolletes dundasensis 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 dundasensis refers to Dundas, an abandoned gold rush town near one of the collection sites.
Description The female body length is about 12 mm. The eyes are hairy. Colouration is mainly black and orange-brown, with narrow silver metasomal bands and pale orange-brown hair.
Distribution and habitat The species occurs mainly in inland south-western Australia. The type locality is some 6 km south-west of McDermid Rock, near Norseman, Western Australia.
Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Daviesia aphylla, Daviesia benthamii and Daviesia brevifolia, as well as Gastrolobium species.
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