Pachyprosopis is a genus of bees, also known as naked bees, in the family Colletidae and subfamilyEuryglossinae. It comprises 23 species in three subgenera. These bees are endemic to Australia, with records from all states and territories. They have a robust build, are almost hairless, and are usually around 4–7mm long. In almost every species, the female has an apical spine on the labrum, and most species exhibit strong sexual dimorphism. They almost exclusively visit flowers from the Myrtaceae family. They have been recorded nesting in beetle burrows in an old tree stump, as well as in termite soil in eucalypthollows.
Face of Pachyprosopis cornuta
Species
As of 2026 the genus contained 23 valid species in three subgenera: Pachyprosopis, Pachyprosopula, and Parapachyprosopis: