Hyphesma atromicans is a species of bee in the family Colletidae and the subfamily Euryglossinae. It is endemic to Australia. It was described in 1913 by British-American entomologist Theodore Dru Alison Cockerell.
The species occurs in much of southern Australia. Type localities include Purnong in South Australia, Brisbane in south-east Queensland, as well as Sandringham, Eltham and Mount Buffalo in Victoria.
The adults are flying mellivores that nest in soil. Flowering plants visited by the bees include Leptospermum, Angophora, Bursaria, Celmisia, Eucalyptus, Goodenia, Jacksonia, Olearia and Tristania species.