Leioproctus launcestonensis, or Leioproctus (Leioproctus) launcestonensis, 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 8 mm. Colouration is mainly black, the abdomen "very dark greenish", with white to brownish hair.

Distribution and habitat The species occurs in eastern Australia. The type locality is Launceston, Tasmania.

Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Prostanthera lasianthos, Leptospermum ericoides and Bursaria spinosa, as well as Eucalyptus species.

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