Hylaeus obtusatus, or Hylaeus (Euprosopoides) obtusatus, also known as the obtuse masked bee, is a species of bee in the family Colletidae and subfamily Hylaeinae. It is endemic to Australia. It was described by English entomologist Frederick Smith in 1879.
Distribution and habitat The species occurs in south-west Western Australia. Type localities include Swan River, King George Sound and Bunbury.
Behaviour The adults are flying mellivores.
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