Leioproctus cyaneorufus, or Leioproctus (Leioproctus) cyaneorufus, 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 1930.

Description Female body length is about 7.5 mm. Integumental colouration is mainly black; the abdomen is a "dusky chestnut red, with a delicate purple suffusion"; the hair is white and brown.

Distribution and habitat The species occurs in eastern Australia. Type localities include Bribie Island and Dunwich, Queensland.

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

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