Order Diptera Linnaeus, 1758 - true flies, mosquitoes, gnats
   Brachycera Zetterstedt, 1842
     Tabanomorpha Hennig, 1948
       1 Family Acroceridae Leach, 1815
       2 Family Athericidae Stuckenberg, 1973
       3 Family Austroleptidae (Nagatomi, 1982)
       4 Family Nemestrinidae Macquart, 1834
       5 Family Oreoleptidae
       6 Family Rhagionidae Latreille, 1802
       7 Family Spaniidae
       8 Family Tabanidae Latreille, 1802 - horse flies, deerflies, and clegs
       9 Family Xylophagidae Fallén, 1810