Leioproctus coracinus, or Leioproctus (Leioproctus) coracinus, is a species of bee in the family Colletidae and subfamily Colletinae. It is endemic to Australia. It was described by entomologist Michael Batley in 2025.
Etymology The specific epithet coracinus (Latin: "crow") refers to the predominantly black colour.
Description The holotype female body length is 12.2 mm, head width 3.7 mm; male body length 11.0 mm, head width 3.2 mm. Integumental colouration is mainly black with brown markings. The hair is white to brown.
Distribution and habitat The species occurs in eastern New South Wales. The type locality is Clarence.
Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Boronia microphylla.
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