Leioproctus latifrons, or Leioproctus (Protomorpha) latifrons, is a species of bee in the family Colletidae and subfamily Colletinae. It is endemic to Australia. It was described by entomologist Michael Batley in 2013.
Etymology The specific epithet latifrons (Latin: "broad brow") is an anatomical reference.
Description Male body length is about 5.7 mm, head width 1.9 mm; female body length 6.8 mm, head width 2.2 mm. Integumental colouration is mainly black with orange and brown markings; the hair is white to pale brown.
Distribution and habitat The species occurs across much of arid inland Australia. The type locality is Kunnamuka Swamp, near Ethabuka Reserve, in Central West Queensland on the edge of the Simpson Desert.
Behaviour The adults are flying mellivores. Flowering plants visited by the bees include Scaevola parvibarbata and Scaevola depauperata.
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