Exoneura melaena, or Exoneura (Brevineura) melaena, is a species of reed bee in the tribe Allodapini. It is endemic to Australia. It was described in 1918 by British-American entomologist Theodore Dru Alison Cockerell.
Description The body length of the female holotype is 5 mm.
Distribution and habitat The species occurs in south-east Queensland. The type locality is Caloundra.
Behaviour The adults are flying mellivores.
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