Amphicestonia Villeneuve, 1939 Amphitropesa Townsend, 1933 Anacamptomyia Bischof, 1904 Anadiscalia Curran, 1934 Anadistichona Townsend, 1934 Anaeudora Townsend, 1933 Anagonia Brauer & von Bergenstamm, 1891 Anamastax Brauer & von Bergenstamm, 1891 Anametopochaeta Townsend, 1919 Ancistrophora Schiner, 1865 Andesimyia Brèthes, 1909 Andinomyia Townsend, 1912 Androsoma Cortés & Campos, 1971 Anechuromyia Mesnil & Shima, 1979 Anemorilla Townsend, 1915 Aneogmena Brauer & von Bergenstamm, 1891 Anepalpus Townsend, 1931 Angustia Sellers, 1943 Anhangabahuia Townsend, 1931 Anisia van der Wulp, 1890 Anomalostomyia Cerretti & Barraclough, 2007 Anoxynops Townsend, 1927 Anthomyiopsis Townsend, 1916 Antistasea Bischof, 1904 Antistaseopsis Townsend, 1934 Anurophylla Villeneuve, 1938 Apalpostoma Malloch, 1930 Apatemyia Macquart, 1846 Aphria Robineau-Desvoidy, 1830 Aplomya Robineau-Desvoidy, 1830 Aplomyodoria Townsend, 1928 Aplomyopsis Townsend, 1927 Apomorphomyia Crosskey, 1984 Aporeomyia Pape & Shima, 1993 Aprotheca Macquart, 1851 Arama Richter, 1972 Araucogonia Cortés, 1976 Araucosimus Aldrich, 1934 Archytas Jaennicke, 1867 Archytoepalpus Townsend, 1927 Arcona Richter, 1988 Arctosoma Aldrich, 1934 Argyrochaetona Townsend, 1919 Argyromima Brauer & von Bergenstamm, 1889 Argyrophylax Brauer & von