Leioproctus chrysopyga, or Leioproctus (Euryglossidia) chrysopyga, is a species of bee in the family Colletidae and subfamily Colletinae. It is endemic to Australia. It was described by entomologist Michael Batley in 2025.
Etymology The specific epithet chrysopyga (Latin: "golden tail") is an anatomical reference.
Description The male body length is 4.9 mm, female body length 5.2 mm. Integumental colouration is mainly black and dark brown, with a yellow-brown end to the female metasoma. The hair is mostly white to yellow and brown.
Distribution and habitat The species occurs in inland Western Australia. The type locality is Wongawol, near Wiluna, in the Mid West region.
Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Calotis multicaulis and Rhodanthe charsleyae, as well as Acacia species.
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