Leioproctus rufus is a species of bee in the family Colletidae and subfamily Colletinae. It is endemic to Australia. It was described by Australian entomologist Tarlton Rayment in 1930.
Description Male body length is about 11 mm. Integumental colouration is mainly black, with dorsal segments of the abdomen chestnut-red; the hair golden.
Distribution and habitat The species occurs in South Australia. The type locality is Purnong.
Behaviour The adults are flying mellivores.
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