the Fanniidae represent a small dipteran family with worldwide
distribution, the highest diversity of which is found in the
Holarctic region To date, about 285 species within the four genera of Fannia Robineau-Desvoidy,
Euryomma Stein, Piezura Rondani and the Australian endemic Australofannia Pont have been described. Domínguez & Roig- Ju˜nent recently argued for the existence of a fifth, undescribed
genus, endemic to New Zealand. For several decades the Fanniidae were classified as a subfamily within the Muscidae and this description can still be seen in the applied literature, especially in textbooks Based on unique features of larval morphology raised the Fanniidae (from Fanniinae) to family rank in a move that has gained wide acceptance among more recent specialists