Euhesma acantha, or Euhesma (Euhesma) acantha, is a species of bee in the family Colletidae and the subfamily Euryglossinae. It is endemic to Australia. It was described in 2004 by Australian entomologist Elizabeth Exley.

Distribution and habitat The species occurs in central Australia. The type locality is Windorah in Central West Queensland. It has also been recorded from the Northern Territory.

Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Dicrastylis lewellinii species.

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