Euryglossina weiri, or Euryglossina (Euryglossella) weiri, is a species of bee in the family Colletidae and the subfamily Euryglossinae. It is endemic to Australia. It was described in 1974 by Australian entomologist Elizabeth Exley.

Etymology The specific epithet weiri honours Tom Weir who collected many of the specimens described in Exley's 1974 paper.

Description Male body length is 2.3 mm, wing length 1.5 mm. Colouration is mainly black, dark brown and yellow.

Distribution and habitat The species occurs in northern Australia. The type locality is Coconut Grove via Darwin, Northern Territory.

Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Eucalyptus papuana, Tristania, Melaleuca and Eugenia species.

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