Hylaeus perhumilis, or Hylaeus (Prosopisteron) perhumilis, is a species of bee in the family Colletidae and subfamily Hylaeinae. Originally endemic to Australia, it has been introduced to New Zealand. It was described by British-American entomologist Theodore Dru Alison Cockerell in 1914.

Description Male body length is about 4 mm. Integumental colouration is mainly black, with yellow markings.

Distribution and habitat The species occurs in both eastern and south-western Australia. The type locality is Yallingup, Western Australia.

Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Angophora, Banksia, Callistemon, Eucalyptus, Leptospermum and Melaleuca species.

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