Leioproctus arenarius, or Leioproctus (Euryglossidia) arenarius, 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 arenarius means "associated with sand" and is a habitat reference.
Description Female body length is 6.5 mm, male body length 5 mm. Integumental colouration is mainly black with brown markings. The hair is white to pale brown.
Distribution and habitat The species occurs in Western Australia. The type locality is 13 km south of Wannoo in the Gascoyne region.
Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Hakea, Cassiaand Acacia species.
References