| Infraorder | Axymyiomorpha Mcalpine, 1981
| 1 11 24 | Family Genera Species |
| Infraorder | Bibionomorpha Hennig, 1954 Gall Midges, Gnats, March Flies | 36 2326 28119 | Families Genera Species |
| Infraorder | Blephariceromorpha Rohdendorf, 1961
| 3 61 511 | Families Genera Species |
| Infraorder | Culicomorpha Hennig, 1948 Mosquitoes and Midges | 11 1863 38890 | Families Genera Species |
| Infraorder | Nymphomyiomorpha Rohdendorf, 1964
| 1 3 13 | Family Genera Species |
| Infraorder | Psychodomorpha Chevrolat, 1880
| 19 471 7272 | Families Genera Species |
| Infraorder | Ptychopteromorpha Wood & Borkent, 1986
| 4 51 354 | Families Genera Species |
| Infraorder | Tipulomorpha Gistel, 1848 Crane Flies | 16 709 27674 | Families Genera Species |
| Family | Elliidae ♰ Krzeminska, Blagoderov & Krzeminski, 1993
| 2 4 | Genera Species |
| Family | Hyperpolyneuridae ♰ Rohdendorf, 1961
| 1 2 | Genus Species |
| Family | Luanpingitidae ♰ Zhang, 1986
| 1 1 | Genus Species |
| Family | Mesosciophilidae ♰ Rohdendorf, 1946
| 9 24 | Genera Species |
| Family | Palaeophoridae ♰ Rohdendorf, 1951
| 1 1 | Genus Species |
| Family | Rhaetaniidae ♰ Krzemiński & Krzemińska, 2002 ⇒ Tillyardipteridae
| 1 1 | Genus Species |
| Family | Serendipidae ♰ Evenhuis, 1994
| 2 3 | Genera Species |
| Family | Strashilidae ♰ Rasnitsyn, 1992
| 4 5 | Genera Species |
| Family | Tethepomyiidae ♰ Grimaldi & Arillo, 2008
| 1 1 | Genus Species |
| Family | Tillyardipteridae ♰ Lukashevich & Shcherbakov, 1999
| 2 2 | Genera Species |
| Anisopodoidea (Knab, 1912) |
| Bibionoidea (Cocquerell, 1901) |
| Culocoidea (Bagnall, 1939) |
| Nematocerata (Gravenhorst, 1843) |
| Nematoceratae (Bigot, 1891) |
| Nemocera (Latreille, 1825) |
| Nemocerae (Gray, 1832) |
| Nemocerata (Perty, 1833) |
| Nemoceratae (Bigot, 1890) |
| Nemoceri (Lioy, 1895) |
| Nemoceridi (Targioni Tozetti, 1870) |
| Orthorrhapha (Brauer, 1863) |
| Orthorrhapha Nemocera (Osten-sacken, 1893) |
| Polyarta (Billberg, 1820) |
| Psychodoidea (Yoshii, 1995) |