Leioproctus arenastrus, or Leioproctus (Euryglossidia) arenastrus, 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 arenastrus indicates that the species resembles Leioproctus arenarius.
Description Male body length is 5.5 mm, female body length 6.5 mm. Integumental colouration is mainly black. The hair is white and pale brown.
Distribution and habitat The species occurs in inland southern Western Australia. The type locality is Credo Station in the Goldfields–Esperance region.
Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Seringia integrifolia, as well as Acacia species.
References