Trichocolletes sericeus is a species of bee in the family Colletidae and the subfamily Colletinae. It is endemic to Australia. It was described in 1862 by English entomologist Frederick Smith.
Distribution and habitat The species occurs in south-eastern Australia.
Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Dillwynia floribunda, Podolobium ilicifolium, Daviesia alata, Daviesia acicularis and Leptospermum species.
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