Family: Acroceridae (395 species)

Family: Agromyzidae (2989 species)

Family: Anisopodidae (10 species)

Family: Anthomyiidae (724 species)

Family: Anthomyzidae (63 species)

Family: Apioceridae

Family: Asilidae (7594 species)

Family: Asteiidae (3 species)

Family: Athericidae (118 species)

Family: Baeonotidae

Family: Bibionidae (754 species)

Family: Bombyliidae (5370 species)

Family: Braulidae

Family: Calliphoridae (605 species)

Family: Carnidae (6 species)

Family: Cecidomyiidae (1570 species)

Family: Celyphidae (9 species)

Family: Ceratopogonidae (5605 species)

Family: Chamaemyiidae (106 species)

Family: Chaoboridae (7 species)

Family: Chironomidae (7105 species)

Family: Chloropidae (2979 species)

Family: Chyromyidae (140 species)

Family: Clusiidae (278 species)

Family: Coenomyiidae (1 species)

Family: Conopidae (853 species)

Family: Culicidae (1101 species)

Family: Curtonotidae (75 species)

Family: Cylindrotomidae (5 species)

Family: Ditomyiidae (7 species)

Family: Dixidae (13 species)

Family: Dolichopodidae (7309 species)

Family: Drosophilidae (2546 species)

Family: Dryomyzidae (14 species)

Family: Empididae (821 species)

Family: Ephydridae (2159 species)

Family: Fanniidae (368 species)

Family: Heleomyzidae (737 species)

Family: Hippoboscidae (779 species)

Family: Hybotidae (1969 species)

Family: Keroplatidae (955 species)

Family: Lauxaniidae (1929 species)

Family: Limoniidae (10175 species)

Family: Lonchaeidae (520 species)

Family: Lonchopteridae (65 species)

Family: Megamerinidae (21 species)

Family: Micropezidae (588 species)

Family: Milichiidae (298 species)

Family: Muscidae (5172 species)

Family: Mycetophilidae (4201 species)

Family: Mydidae (1 species)

Family: Nemestrinidae (277 species)

Family: Neriidae (30 species)

Family: Odiniidae (25 species)

Family: Oestridae (29 species)

Family: Opomyzidae (55 species)

Family: Pachyneuridae (1 species)

Family: Pallopteridae (3 species)

Family: Pediciidae (456 species)

Family: Periscelididae (14 species)

Family: Phaeomyiidae (1 species)

Family: Phoridae (3599 species)

Family: Piophilidae (55 species)

Family: Pipunculidae (1411 species)

Family: Platypezidae (269 species)

Family: Platystomatidae (1180 species)

Family: Psilidae (338 species)

Family: Psychodidae (2933 species)

Family: Ptychopteridae (88 species)

Family: Pyrgotidae (399 species)

Family: Rhagionidae (611 species)

Family: Rhiniidae (61 species)

Family: Rhinophoridae (176 species)

Family: Richardiidae (30 species)

Family: Ropalomeridae (9 species)

Family: Sarcophagidae (3023 species)

Family: Scatophagidae (312 species)

Family: Scatopsidae (388 species)

Family: Sciaridae (2364 species)

Family: Sciomyzidae (588 species)

Family: Sepsidae (343 species)

Family: Simulidae (2084 species)

Family: Sphaeroceridae (249 species)

Family: Stratiomyidae (2791 species)

Family: Syrphidae (2562 species)

Family: Tabanidae (3051 species)

Family: Tachinidae (9675 species)

Family: Tanypezidae (1 species)

Family: Tephritidae (4921 species)

Family: Therevidae (1132 species)

Family: Tipulidae (4121 species)

Family: Trichoceridae (2 species)

Family: Ulidiidae (782 species)

Family: Xylomyidae (136 species)

Family: Xylophagidae (12 species)