Palaeorhiza caerulescens, or Palaeorhiza (Palaeorhiza) caerulescens, is a species of bee in the family Colletidae and subfamily Hylaeinae. It is endemic to Australia. It was described by German entomologist Heinrich Friese in 1924.
Distribution and habitat The species occurs in coastal eastern Australia. The type locality is Mackay, Queensland.
Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Cassia species.
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