Abebaiodacus Munro, 1984 (current name source)
Abebaiodacus Munro, 1984 (basis of record)
Acanthina Wiedemann, 1830 accepted as Acanthinomyia Hunter, 1901 (basis of record)
Acanthocnema Becker, 1894 (basis of record)
Acanthopleura Engel in Lindner, 1927 (basis of record)
Acropsilus Mik, 1878 (basis of record)
Adelides (basis of record)
Adelides (current name source)
Adenophora Borgmeier, 1960 (basis of record)
Africasia Rohdendorf, 1934 accepted as Africasiomyia Rohdendorf, 1975 (basis of record)
Afrosargus Lindner, 1955 (current name source)
Afrosargus Lindner, 1955 (basis of record)
Afrovoria (basis of record)
Afrovoria (current name source)
Afzelia Robineau-Desvoidy, 1863 (basis of record)
Agnostophana Hering, 1953 (current name source)
Agnostophana Hering, 1953 (basis of record)
Ahrensia Robineau-Desvoidy, 1863 accepted as Microsoma Macquart, 1855 (basis of record)
Albaredaya Peris, 1956 (basis of record)
Alikangiella Villeneuve, 1927 (basis of record)
Alinkidae Krzemiński, 1992 † accepted as Procramptonomyiidae Kovalev, 1985 † (basis of record)
Allactoneurites Rohdendorf, 1938 † (basis of record)
Alleremonomus Ren & Guo, 1995 † (basis of record)
Allophallus Dziedzicki, 1923 (basis of record)
Alophorella Townsend, 1912 accepted as Phasia Latreille, 1804 (basis of record)
Amathia Walker, 1852 accepted as Eosalpingogaster Hull, 1949 (basis of record)
Aminta Robineau-Desvoidy, 1830 accepted as Fannia Robineau-Desvoidy, 1830 (basis of record)
Ammobia van der Wulp, 1869 accepted as Deuterammobia Bezzi, 1906 (basis of record)
Amplipila Curran, 1927 (current name source)
Amplipila Curran, 1927 (basis of record)
Amydrosoma Becker, 1903 (basis of record)
Amydrosoma Becker, 1903 (current name source)
Anabasis Trojan, 1994 (basis of record)
Anakempia Kieffer, 1924 accepted as Ceratopogon Meigen, 1803 (basis of record)
Anakempia Kieffer, 1924 accepted as Ceratopogon Meigen, 1803 (current name source)
Anapospasma Lindner, 1969 (current name source)
Anapospasma Lindner, 1969 (basis of record)
Anasimyia Schiner, 1864 (basis of record)
Ancistrophora Schiner, 1865 (basis of record)
Andersonia Malloch, 1928 accepted as Andersonosia van Emden, 1940 (basis of record)
Anepsiomyia Bezzi, 1902 (basis of record)
Aneura Marshall, 1896 (basis of record)
Aneuria Malloch, 1930 (basis of record)
Angiometopia (current name source)
Angiometopia (basis of record)
Angustiopsis Reinhard, 1959 (current name source)
Angustiopsis Reinhard, 1959 (basis of record)
Anisopogon Loew, 1874 (basis of record)
Anna Malloch, 1926 (basis of record)
Anomalacantha James, 1978 (basis of record)
Ansorgiidae Evenhuis, 1994 † (basis of record)
Antefungivoridae Rohdendorf, 1938 † (basis of record)
Anthocoena van Emden, 1941 (basis of record)
Anthocoena van Emden, 1941 (current name source)
Anthoica Rondani, 1861 accepted as Solieria Robineau-Desvoidy, 1849 (basis of record)
Anticheta Haliday, 1838 (basis of record)
Antonia Loew, 1856 (basis of record)
Aphistima (current name source)
Aphistima (basis of record)
Aphritis Latreille, 1804 accepted as Microdon Meigen, 1803 (basis of record)
Apilia Malloch, 1930 (basis of record)
Apilia Malloch, 1930 (current name source)
Apollenia Bezzi, 1912 (basis of record)
Apophysophora Williston, 1888 accepted as Copestylum Macquart, 1846 (basis of record)
Appollenia (basis of record)
Apsilocephalidae Nagatomi, Saigusa, Nagatomi & Lyneborg, 1991 (extant flag source)
Apsilocephalidae Nagatomi, Saigusa, Nagatomi & Lyneborg, 1991 (basis of record)
Apystomyiidae Nagatomi & Liu, 1994 (basis of record)
Apystomyiidae Nagatomi & Liu, 1994 (extant flag source)
Archicera Szilady, 1934 (basis of record)
Archicera Szilady, 1934 (current name source)
Archiphytalmia Enderlein, 1936 (current name source)
Archiphytalmia Enderlein, 1936 (basis of record)
Archipleciomima † (basis of record)
Archisargidae Rohdendorf, 1951 † (basis of record)
Archisargus Rohdendorf, 1938 † (basis of record)
Archizelmiridae Rohdendorf, 1962 † (basis of record)
Arctophila Schiner, 1860 (basis of record)
Arcus Hong, 1983 † (basis of record)
Argijra (basis of record)
Ariciella Malloch, 1918 (current name source)
Ariciella Malloch, 1918 (basis of record)
Arnoldia Kieffer, 1895 accepted as Arnoldiola Strand, 1928 (basis of record)
Arocholidia (current name source)
Arocholidia (basis of record)
Arthronema Lindner, 1966 (basis of record)
Arthuria Malloch, 1938 accepted as Montanarturia Miller, 1945 (basis of record)
Asceloctella Enderlein, 1928 (basis of record)
Asceloctella Enderlein, 1928 (current name source)
Asiochaoboridae Hong & Wang, 1990 † (basis of record)
Aspilia Rondani, 1866 accepted as Helina Robineau-Desvoidy, 1830 (basis of record)
Asteromyia Felt, 1910 (basis of record)
Astigmatophthalmus Kröber, 1931 (current name source)
Astigmatophthalmus Kröber, 1931 (basis of record)
Ateleia Skuse, 1888 (basis of record)
Atractodexia Bigot, 1885 accepted as Sumpigaster Macquart, 1855 (basis of record)
Atrania Robineau-Desvoidy, 1863 accepted as Wagneria Robineau-Desvoidy, 1830 (basis of record)
Atrichops Verrall, 1909 (basis of record)
Australimyzidae Griffiths, 1972 (basis of record)
Australimyzidae Griffiths, 1972 (extant flag source)