Hylaeus philoleucus, or Hylaeus (Gnathoprosopoides) philoleucus, is a species of bee in the family Colletidae and subfamily Hylaeinae. It is endemic to Australia. It was described by British-American entomologist Theodore Dru Alison Cockerell in 1910.
Description Female body length is about 4 mm. Integumental colouration is mainly black, with white markings.
Distribution and habitat The species occurs in eastern mainland Australia. Type localities include Mackay, Queensland as well as Sydney.
Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Angophora, Eucalyptus, Leptospermum and Tristaniopsis species.
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