Leioproctus insitus, or Leioproctus (Minycolletes) insitus, 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 insitus is Latin for "border" or "flounce", referring to an apical fringe on the male metasoma.
Description Female body length is about 7 mm, male body length 6 mm. Integumental colouration is brown to black. The hair is white to pale brown.
Distribution and habitat The species occurs in eastern Australia. The type locality is 3.2 km south of Nanango, in south-east Queensland.
Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Leptospermum species.
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