Leioproctus comatus, or Leioproctus (Goniocolletes) comatus, is a species of bee in the family Colletidae and subfamily Colletinae. It is endemic to Australia. It was described by Australian entomologist Glynn Maynard in 2013.

Etymology The specific epithet comatus (Latin: "shaggy") is an anatomical reference to shaggy hair on the male metasoma.

Description Female body length is about 11 mm, male body length 10 mm. Integumental colouration is mainly black; the female metasoma is orange, the male black. The hair is mostly white.

Distribution and habitat The species occurs in inland southern Australia. The type locality is Lake Gilles National Park.

Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Eucalyptus dumosa, Eucalyptus brachycalyx and Eucalyptus socialis, as well as Melaleuca species.

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