Leioproctus metallescens, or Leioproctus (Leioproctus) metallescens, 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 about 11 mm, male about 9 mm. Colouration is mainly black, the abdomen very dark bluish-green, with white to orange-reddish hair.
Distribution and habitat The species occurs across southern Australia. The type locality is Yallingup, Western Australia. It has also been recorded from Cape Schanck , Victoria.
Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Acacia, Eucalyptus, Lycium and Melaleuca species.
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