Abaciasagitta Bieri, 1991 (verified source for family)
Abacillodes Straneo, 1988 (habitat flag source)
Abadia Cachan, 1952 (verified source for family)
Abancaya Razowski, 1997 (verified source for family)
Abaraschia Capuse, 1973 (verified source for family)
Abasorites Belousov, 1998 accepted as Nannotrechus Winkler, 1926 (habitat flag source)
Abathymermis Rubtsov, 1971 (habitat flag source)
Abbottina McCulloch, 1977 accepted as Nonion de Montfort, 1808 (habitat flag source)
Abbreviata anomala Jones, 1986 (habitat flag source)
Abbreviata levicauda Jones, 1983 (habitat flag source)
Abbreviata pilbarensis Jones, 1986 (habitat flag source)
Abbreviata tumidocapitis Jones, 1983 (habitat flag source)
Abbreviata turkomanica Andrushko & Markov, 1956 (habitat flag source)
Abdistragania Blocker, 1979 (verified source for family)
Abditicoccus Lambdin & Kosztarab, 1975 (verified source for family)
Abelmacoris Miller, 1958 (verified source for family)
Aberisphaera Wan, 1991 † (habitat flag source)
Abietotettix Mityaev, 1965 (verified source for family)
Abilana Strand, 1928 † (extant flag source)
Abimwa Linnavuori, 1978 (verified source for family)
Abitagua Alexander, 1944 (verified source for family)
Abitagua Alexander, 1944 (habitat flag source)
Ablephica Berio, 1985 (verified source for family)
Abmyceta Lane, 1955 (verified source for family)
Aboilus Martynov, 1925 † (extant flag source)
Abolescus Tichomirova, 1968 † (habitat flag source)
Abonnencius Morillas Marquez, Castillo Remiro & Ubeda Ontiveros, 1984 † (verified source for family)
Aborsillus Barber, 1954 (verified source for family)
Abothrus Pace, 1991 (habitat flag source)
Aboudaragina Nakkady, 1955 † (habitat flag source)
Abpamphantus Barber, 1954 (verified source for family)
Abrabra Dworakowska, 1976 (verified source for family)
Abraedes Zavortink, 1970 (verified source for family)
Abrela Young, 1957 (verified source for family)
Abrephia Amsel, 1953 (verified source for family)
Abriolina Luperto, 1963 † (habitat flag source)
Abrodiella Bousquet, 2002 (habitat flag source)
Abrohemeroscopus Ren, Liu & Cheng, 2003 † (verified source for family)
Abromelissa Snelling & Brooks, 1985 (verified source for family)
Abrophaena Pace, 1983 (habitat flag source)
Abrus Dai & Zhang, 2002 (verified source for family)
Abscondus Tichomirova, 1968 † (habitat flag source)
Absheta Blocker, 1979 (verified source for family)
Absidaticonus Yue in Xing, Ding, Luo, He & Wang, 1984 † (habitat flag source)
Absinthomyia Fedotova, 1999 (verified source for family)
Abuhammadina Abd-Elshafy & Ibrahim, 1990 † (habitat flag source)
Abuko Masner & Huggert, 1979 (verified source for family)
Abura Matsumura, 1917 (verified source for family)
Abyssocythere atlantica Benson, 1971 (extant flag source)
Abyssocythere australis Benson, 1971 (extant flag source)
Abyssocythere casca Benson, 1971 (extant flag source)
Abyssocythere japonica Benson, 1971 (extant flag source)
Abyssocythere pannucea Benson, 1971 (extant flag source)
Abyssothyris elongata Cooper, 1972 accepted as Abyssothyris wyvillei (Davidson, 1878) (extant flag source)
Acablasa Argaman in Argaman & Ozbek, 1992 (verified source for family)
Acacioiassus Linnavuori & Quartau, 1975 (verified source for family)
Acalama Smith, 1948 (verified source for family)
Acalcaripes Pesenko, 1984 (verified source for family)
Acallopistes Holland, 1896 accepted as Katreus Watson, 1893 (verified source for family)
Acallyntrum Stone, 1948 (verified source for family)
Acalopus Franz, 1961 (verified source for family)
Acamella Wesley & Blocker, 1985 (verified source for family)
Acampsohelcon Tobias, 1987 † (verified source for family)
Acampsohelcon Tobias, 1987 † (extant flag source)
Acampyloneurus van Achterberg, 1992 (verified source for family)
Acanthagenia Haupt, 1959 (verified source for family)
Acanthetropis Wasbauer, 1958 (verified source for family)
Acanthidris Weber, 1941 (verified source for family)
Acanthionella Canu & Bassler, 1917 † (extant flag source)
Acanthionella Canu & Bassler, 1917 † (habitat flag source)
Acanthobemisia Takahashi, 1935 (verified source for family)
Acanthoberytus Stusak, 1968 (verified source for family)
Acanthobruchus Yus Ramos, 1978 (verified source for family)
Acanthocallis Matsumura, 1917 (verified source for family)
Acanthocassis He & Xie, 1989 † (habitat flag source)
Acanthocaudus Smith, 1944 (verified source for family)
Acanthochelonus Brues, 1926 (verified source for family)
Acanthodeois Sakakibara, 1979 (verified source for family)
Acanthofer Szabo, 1974 (verified source for family)
Acanthoica bidentula Lecal-Schlauder, 1951 (habitat flag source)
Acanthoica biscayensis A. Kleijne, 1992 (habitat flag source)
Acanthoica cucullata J. Lecal-Schlauder, 1951 (habitat flag source)
Acanthomelecta Lieftinck, 1972 (verified source for family)
Acanthomutilla Nonveiller, 1995 (verified source for family)
Acanthomyites Cockerell, 1921 † (extant flag source)
Acanthoodes Basilewsky, 1953 (verified source for family)
Acanthoodes Basilewsky, 1953 (habitat flag source)
Acanthophiceras Diener, 1916 † (habitat flag source)
Acanthophotopsis Schuster, 1958 (verified source for family)
Acanthosphaera Duan, 1984 † (habitat flag source)
Acanthosphaera pinchuda Boltovskoy, 1980 (extant flag source)
Acanthosphaeridium M. Hajós & H. Stradner in M. Hajós, 1975 † (habitat flag source)
Acanthostigus LeLeup, 1968 accepted as Stenomastigus Leleup, 1968 (habitat flag source)
Acanthostrophia Conti & Fischer, 1984 † (extant flag source)
Acanthothynnus Turner, 1910 (verified source for family)
Acanthotoposaurus Evans & van den Heever, 1987 † (extant flag source)
Acanthotrichaphis Shaposhnikov & Wegierek, 1989 † (verified source for family)
Acanthotuberculatus Quednau, 1999 † (verified source for family)
Acanthovalva Kruger, 2001 (verified source for family)
Acanthuroides Blot & Tyler, 1990 † (extant flag source)