Leioproctus callurus, or Leioproctus (Odontocolletes) callurus, is a species of bee in the family Colletidae and subfamily Colletinae. It is endemic to Australia. It was described by British-American entomologist Theodore Dru Alison Cockerell in 1914.

Description Female body length is 10 mm. Colouration is mainly black, abdomen partly reddish, with white to rust-red hair.

Distribution and habitat The species occurs in south-west Western Australia. Type localities include Yallingup and King George Sound.

Behaviour The adults are flying mellivores.

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