| Acanaloniidae Amyot and Se..., 1843 | | 46 | Arten | Taxom |
| Acanthopidae Burmeister, 1838 | | 91 | Arten | Taxom |
| Acanthosomatidae Signoret, 1864 | Bauchkielwanzen | 46 | Arten | Taxom |
| Acartophthalmidae Czerny, 1928 | Augenstoppelfliegen | 1 | Art | Taxom |
| Achilidae Stål, 1866 | Rindenzikaden | 56 | Arten | Taxom |
| Aclerdidae Ferris, 1937 | | 6 | Arten | Taxom |
| Acrididae MacLeay, 1819 | Feldheuschrecken | 1367 | Arten | Taxom |
| Acroceridae Leach, 1815 | Kugelfliegen | 81 | Arten | Taxom |
| Adelgidae Heinze, 1962 | Fichtengallenläuse | 4 | Arten | Taxom |
| Adelidae Bruand, 1851 | Langfühlermotten | 38 | Arten | Taxom |
| Ademosynidae Ponomarenko, 1968 | | 8 | Arten | Taxom |
| Aderidae Winkler, 1927 | Baummulmkäfer | 85 | Arten | Taxom |
| Aenictopecheidae Usinger, 1932 | | 7 | Arten | Taxom |
| Aeolothripidae Uzel, 1895 | | 27 | Arten | Taxom |
| Aerophasmidae Martynov, 1928 | | 1 | Art | Taxom |
| Aetalionidae Spinola, 1850 | | 33 | Arten | Taxom |
| Agaonidae Walker, 1848 | Feigenwespen | 27 | Arten | Taxom |
| Agathemeridae Bradler, 2003 | | 9 | Arten | Taxom |
| Agromyzidae Fallen, 1823 | Minierfliegen | 414 | Arten | Taxom |
| Aididae Schaus, 1906 | | 10 | Arten | Taxom |
| Alexiidae Imhoff, 1856 | Kugelkäfer | 1 | Art | Taxom |
| Aleyrodidae Westwood, 1840 | Mottenschildläuse Mottenläuse | 203 | Arten | Taxom |
| Alucitidae Leach, 1815 | Federgeistchen | 25 | Arten | Taxom |
| Alydidae Amyot & Serv..., 1843 | Krummfühlerwanzen | 65 | Arten | Taxom |
| Amorphoscelidae Stål, 1877 | | 1 | Art | Taxom |
| Amphientomidae Enderlein, 1903 | | 10 | Arten | Taxom |
| Amphipsocidae Mockford, 1978 | | 23 | Arten | Taxom |
| Ampulicidae Shuckard, 1840 | Schaben-Grabwespen | 19 | Arten | Taxom |
| Andesembiidae Ross, 2003 | | 7 | Arten | Taxom |
| Andesianidae Davis & Gentili, 2003 | | 3 | Arten | Taxom |
| Andrenidae Webster, 1913 | Erdbienen | 481 | Arten | Taxom |
| Angarosphecidae Rasnitsyn, 1975 | | 0 | Arten | Taxom |
| Anisembiidae Davis, 1940 | | 49 | Arten | Taxom |
| Anisolabididae Verhoeff, 1902 | | 21 | Arten | Taxom |
| Anisopodidae Knab, 1912 | Fenstermücken | 50 | Arten | Taxom |
| Anomalopsychidae Flint, 1981 | | 21 | Arten | Taxom |
| Anormochoristidae Tillyard, 1926 | | 1 | Art | Taxom |
| Anostostomatidae Saussure, 1859 | | 32 | Arten | Taxom |
| Anthelidae Turner, 1904 | | 9 | Arten | Taxom |
| Anthicidae Latreille, 1819 | Blumenkäfer | 98 | Arten | Taxom |
| Anthocoridae Fieber, 1837 | Blumenwanzen | 35 | Arten | Taxom |
| Anthomyiidae Robineau-Des..., 1830 | Blumenfliegen | 102 | Arten | Taxom |
| Anthomyzidae Czerny, 1903 | Einmieterfliegen | 8 | Arten | Taxom |
| Anthophoridae (C. L. Koch, 1846) | Pelzbienen | 2 | Arten | Taxom |
| Anthracoblattinidae Durden, 1969 | | 2 | Arten | Taxom |
| Anthribidae Billberg, 1820 | Breitrüßler | 390 | Arten | Taxom |
| Apataniidae Wallengren, 1886 | | 7 | Arten | Taxom |
| Apatelodidae Neumoegen & ..., 1894 | | 11 | Arten | Taxom |
| Aphalaridae Löw, 1879 | | 44 | Arten | Taxom |
| Aphelinidae Thomson, 1876 | | 116 | Arten | Taxom |
| Aphididae Latreille, 1802 | Blattläuse | 186 | Arten | Taxom |
| Aphodiidae Leach, 1815 | Dungkäfer | 4 | Arten | Taxom |
| Aphrophoridae Evans, 1946 | Schaumzikaden | 31 | Arten | Taxom |
| Apidae Latreille, 1802 | Bienen | 2152 | Arten | Taxom |
| Apioceridae Bigot, 1852 | | 5 | Arten | Taxom |
| Aradidae Spinola, 1837 | Rindenwanzen | 136 | Arten | Taxom |
| Araripeblattidae Martins-Neto..., 2010 | | 8 | Arten | Taxom |
| Araripeneuridae Martins-Neto..., 1989 | | 7 | Arten | Taxom |
| Archembiidae Ross, 2001 | | 17 | Arten | Taxom |
| Archeocrypticidae Kaszab, 1964 | | 9 | Arten | Taxom |
| Archimylacridae Handlirsch, 1906 | | 5 | Arten | Taxom |
| Archipsocidae Enderlein, 1903 | | 35 | Arten | Taxom |
| Arctiidae Leach, 1815 | Bären | 569 | Arten | Taxom |
| Argentinoblattidae Martins-Neto..., 2005 | | 2 | Arten | Taxom |
| Argidae Konow, 1890 | Bürstenhornblattwespen | 83 | Arten | Taxom |
| Artematopodidae Lacordaire, 1857 | | 14 | Arten | Taxom |
| Ascalaphidae Rambur, 1842 | Schmetterlingshafte | 87 | Arten | Taxom |
| Aschiphasmatidae Brunner von ..., 1893 | | 2 | Arten | Taxom |
| Asilidae Latreille, 1802 | Jagdfliegen | 1524 | Arten | Taxom |
| Asiopsocidae Mockford & G..., 1976 | | 5 | Arten | Taxom |
| Asteiidae Rondani, 1856 | Feinfliegen | 27 | Arten | Taxom |
| Asterolecaniidae Cockerell, 1896 | Pockenläuse | 46 | Arten | Taxom |
| Atelestidae Hennig, 1970 | Zwergtanzfliegen | 2 | Arten | Taxom |
| Athericidae Stuckenberg, 1973 | Ibisfliegen | 9 | Arten | Taxom |
| Attelabidae Billberg, 1820 | Blattroller | 389 | Arten | Taxom |
| Aulacidae Shuckard, 1842 | | 47 | Arten | Taxom |
| Aulacigastridae Wollaston, 1864 | Baumsaftfliegen | 27 | Arten | Taxom |
| Austroleptidae Nagatomi, 1982 | | 7 | Arten | Taxom |
| Austroperlidae Tillyard, 1921 | | 7 | Arten | Taxom |
| Autostichidae Le Marchand, 1947 | Zwergpalpenmotten | 32 | Arten | Taxom |
| Babinskaiidae Martins-Neto..., 1989 | | 4 | Arten | Taxom |
| Bahiaxenidae Bravo, Pohl,..., 2009 | | 1 | Art | Taxom |
| Baissogryllidae Gorochov, 1985 | | 19 | Arten | Taxom |
| Baissopteridae Martynova, 1961 | | 5 | Arten | Taxom |
| Batrachedridae Heinemann & ..., 1876 | | 10 | Arten | Taxom |
| Beesoniidae Ferris, 1950 | | 5 | Arten | Taxom |
| Belidae Schönherr, 1826 | | 57 | Arten | Taxom |
| Belostomatidae Leach, 1815 | Riesenwanzen | 96 | Arten | Taxom |
| Beraeidae Wallengren, 1891 | | 0 | Arten | Taxom |
| Berothidae Handlirsch, 1906 | | 10 | Arten | Taxom |
| Berytidae Fieber, 1851 | Keulenwanzen | 48 | Arten | Taxom |
| Bethylidae Halliday, 1839 | Plattwespen | 371 | Arten | Taxom |
| Bibionidae Fleming, 1821 | Haarmücken | 167 | Arten | Taxom |
| Biphyllidae LeConte, 1861 | Buchenpilzkäfer | 5 | Arten | Taxom |
| Bittacidae Handlirsch, 1906 | Mückenhafte | 60 | Arten | Taxom |
| Biturritiidae (Metcalf, 1929) | | 9 | Arten | Taxom |
| Blaberidae Saussure, 1864 | | 394 | Arten | Taxom |
| Blastobasidae (Meyrick, 1894) | | 0 | Arten | Taxom |
| Blattellidae (Karny, 1908) | Kleinschaben | 333 | Arten | Taxom |
| Blattidae Stephens, 1829 | Schaben | 61 | Arten | Taxom |
| Blattulidae Vishnyokova, 1982 | | 6 | Arten | Taxom |
| Blephariceridae Loew, 1861 | Lidmücken | 70 | Arten | Taxom |
| Blissidae Stål, 1862 | Schmalwanzen | 71 | Arten | Taxom |
| Boganiidae Sen Gupta an..., 1966 | | 1 | Art | Taxom |
| Bohartillidae Kinzelbach, 1969 | | 1 | Art | Taxom |
| Bombycidae Latreille, 1802 | Echte Spinner | 248 | Arten | Taxom |
| Bombyliidae Latreille, 1802 | Hummelfliegen | 557 | Arten | Taxom |
| Boopiidae Mjöberg, 1910 | | 2 | Arten | Taxom |
| Boreidae Latreille, 1816 | Winterhafte | 1 | Art | Taxom |
| Bostrichidae Latreille, 1802 | Bohrkäfer | 152 | Arten | Taxom |
| Bothrideridae Erichson, 1845 | Blindkäfer | 7 | Arten | Taxom |
| Bouretidae Martins-Neto, 2001 | | 1 | Art | Taxom |
| Brachodidae Agenjo, 1966 | | 20 | Arten | Taxom |
| Brachyceridae (Billberg, 1820) | | 3 | Arten | Taxom |
| Brachypteridae (Erichson, 1845) | | 4 | Arten | Taxom |
| Brachystomatidae Melander, 1908 | | 9 | Arten | Taxom |
| Braconidae Latreille, 1829 | Brackwespen | 1126 | Arten | Taxom |
| Bradynobaenidae Saussure, 1892 | | 3 | Arten | Taxom |
| Brahmaeidae Swinhoe, 1892 | Brahmaspinner | 1 | Art | Taxom |
| Brassolidae (Boisduval, 1836) | | 3 | Arten | Taxom |
| Braulidae Egger, 1853 | Bienenläuse | 2 | Arten | Taxom |
| Brentidae Billberg, 1820 | Langkäfer | 446 | Arten | Taxom |
| Buprestidae Leach, 1815 | Prachtkäfer | 831 | Arten | Taxom |
| Byrrhidae Latreille, 1804 | Pillenkäfer | 10 | Arten | Taxom |
| Byturidae Jacquelin du..., 1858 | Blütenfresser | 1 | Art | Taxom |
| Cacurgidae Handlirsch, 1911 | | 1 | Art | Taxom |
| Caeciliusidae Kolbe, 1880 | | 68 | Arten | Taxom |
| Calamoceratidae Ulmer, 1905 | | 71 | Arten | Taxom |
| Caliscelidae Amyot & Serv..., 1843 | Walzenzikaden | 9 | Arten | Taxom |
| Callidulidae Moore, 1877 | | 4 | Arten | Taxom |
| Calliphoridae Brauer & Ber..., 1889 | Schmeißfliegen | 250 | Arten | Taxom |
| Callirhipidae Emden, 1924 | | 18 | Arten | Taxom |
| Calophyidae Vondracek, 1957 | | 24 | Arten | Taxom |
| Canaceidae (Jones, 1906) | | 20 | Arten | Taxom |
| Cantharidae Imhoff, 1856 | Franzosen | 153 | Arten | Taxom |
| Canthyloscelidae Enderlein, 1912 | | 6 | Arten | Taxom |
| Capniidae Klapálek, 1905 | | 52 | Arten | Taxom |
| Carabidae Latreille, 1802 | Laufkäfer | 5873 | Arten | Taxom |
| Carcinophoridae Hincks, 1954 | | 25 | Arten | Taxom |
| Caridae Thompson, 1992 | | 4 | Arten | Taxom |
| Carnidae Newman, 1834 | Gefiederfliegen | 4 | Arten | Taxom |
| Carposinidae Walsingham, 1907 | Fruchtwickler | 9 | Arten | Taxom |
| Carsidaridae Crawford, 1911 | | 7 | Arten | Taxom |
| Castniidae Boisduval, 1828 | | 118 | Arten | Taxom |
| Cavognathidae Sen Gupta an..., 1966 | | 3 | Arten | Taxom |
| Cecidomyiidae Newman, 1834 | Gallmücken | 370 | Arten | Taxom |
| Cecidosidae Brèthes, 1916 | | 8 | Arten | Taxom |
| Celyphidae Bigot, 1852 | | 1 | Art | Taxom |
| Cephidae Newman, 1834 | Halmwespen | 1 | Art | Taxom |
| Cerambycidae Latreille, 1802 | Böcke | 8375 | Arten | Taxom |
| Ceraphronidae Haliday, 1833 | | 1 | Art | Taxom |
| Ceratocombidae Fieber, 1861 | | 4 | Arten | Taxom |
| Ceratophyllidae Dampf, 1908 | | 42 | Arten | Taxom |
| Ceratopogonidae Newman, 1834 | Gnitzen | 870 | Arten | Taxom |
| Cercopidae Leach, 1815 | Blutzikaden | 504 | Arten | Taxom |
| Cercopionidae Hamilton, 1990 | | 1 | Art | Taxom |
| Cerococcidae Balachowsky, 1942 | | 12 | Arten | Taxom |
| Cerophytidae Latreille, 1834 | Dornhalskäfer | 13 | Arten | Taxom |
| Cerylonidae Billberg, 1820 | Glattrindenkäfer | 30 | Arten | Taxom |
| Cetoniidae (Leach, 1815) | Rosenkäfer | 1 | Art | Taxom |
| Chaeteessidae Handlirsch, 1920 | | 6 | Arten | Taxom |
| Chalcididae Latreille, 1817 | Erzwespen | 255 | Arten | Taxom |
| Chamaemyiidae Hendel, 1910 | Blattlausfliegen | 44 | Arten | Taxom |
| Chaoboridae Newman, 1834 | Büschelmücken | 60 | Arten | Taxom |
| Chathamiidae Tillyard, 1925 | | 1 | Art | Taxom |
| Chelonariidae Blanchard, 1845 | | 159 | Arten | Taxom |
| Chiliocyclidae Evans, 1956 | | 3 | Arten | Taxom |
| Chimeromyiidae Grimaldi & C..., 2009 | | 1 | Art | Taxom |
| Chironomidae Erichson, 1842 | Schwarmmücken | 809 | Arten | Taxom |
| Chloroperlidae Okamoto, 1912 | | 29 | Arten | Taxom |
| Chloropidae Schoenherr, 1840 | Halmfliegen | 330 | Arten | Taxom |
| Choreutidae Stainton, 1854 | Rundstirnmotten | 35 | Arten | Taxom |
| Chorotypidae Stål, 1873 | | 0 | Arten | Taxom |
| Chresmodidae Haase, 1890 | | 1 | Art | Taxom |
| Chrysididae Latreille, 1802 | Goldwespen | 138 | Arten | Taxom |
| Chrysomelidae Latreille, 1802 | Blattkäfer | 5201 | Arten | Taxom |
| Chrysopidae Schneider, 1851 | Florfliegen | 473 | Arten | Taxom |
| Chyromyidae Hendel, 1916 | Gelbfliegen | 3 | Arten | Taxom |
| Cicadellidae Latreille, 1802 | Kleinzikaden | 5620 | Arten | Taxom |
| Cicadidae Westwood, 1840 | Singzikaden | 567 | Arten | Taxom |
| Cicadopsyllidae Martynov, 1931 | | 1 | Art | Taxom |
| Ciidae Leach, 1819 | Baumschwammfresser | 88 | Arten | Taxom |
| Cimbicidae Kirby, 1837 | Keulenhornblattwespen | 6 | Arten | Taxom |
| Cimicidae Latreille, 1802 | Bettwanzen | 17 | Arten | Taxom |
| Cixiidae Spinola, 1839 | Glasflügelzikaden | 151 | Arten | Taxom |
| Clambidae Fischer, 1821 | Punktkäfer | 17 | Arten | Taxom |
| Clastopteridae Stål, 1858 | | 44 | Arten | Taxom |
| Cleridae Latreille, 1802 | Buntkäfer | 84 | Arten | Taxom |
| Clothodidae Tillyard, 1937 | | 15 | Arten | Taxom |
| Clusiidae Schönherr, 1840 | Druidenfliegen | 121 | Arten | Taxom |
| Cneoglossidae Champion, 1897 | | 7 | Arten | Taxom |
| Coccidae Stephens, 1829 | Napfschildläuse | 329 | Arten | Taxom |
| Coccinellidae Latreille, 1807 | Glückskäfer | 700 | Arten | Taxom |
| Coelopidae Hendel, 1910 | Tangfliegen | 2 | Arten | Taxom |
| Coleophoridae Hübner, 1825 | Futteralmotten | 118 | Arten | Taxom |
| Colletidae Lepeletier, 1841 | Kropfbienen | 685 | Arten | Taxom |
| Colobathristidae Stål, 1866 | | 32 | Arten | Taxom |
| Conchaspididae Green, 1896 | | 7 | Arten | Taxom |
| Coniopterygidae Burmeister, 1839 | Staubhafte | 88 | Arten | Taxom |
| Conoesucidae Ross, 1967 | | 4 | Arten | Taxom |
| Conopidae Latreille, 1802 | Blasenkopffliegen | 175 | Arten | Taxom |
| Coprinisphaeridae Genise, 2004 | | 1 | Art | Taxom |
| Copromorphidae Meyrick, 1905 | | 11 | Arten | Taxom |
| Coreidae Leach, 1815 | Lederwanzen | 922 | Arten | Taxom |
| Corioxenidae Kinzelbach, 1970 | | 4 | Arten | Taxom |
| Corixidae Leach, 1815 | Ruderwanzen | 104 | Arten | Taxom |
| Corydalidae Burmeister, 1839 | | 55 | Arten | Taxom |
| Corydiidae de Saussure, 1864 | Sandschaben | 20 | Arten | Taxom |
| Corylophidae LeConte, 1852 | Faulholzkäfer | 11 | Arten | Taxom |
| Cosmopterigidae Heinemann & ..., 1876 | Prachtfalter | 137 | Arten | Taxom |
| Cossidae Leach, 1815 | Bohrer | 322 | Arten | Taxom |
| Crabronidae Latreille, 1802 | Grabwespen | 1375 | Arten | Taxom |
| Crambidae Latreille, 1810 | Graszünsler | 2305 | Arten | Taxom |
| Cratomastotermitidae Engel, Grima..., 2009 | | 1 | Art | Taxom |
| Cryptochetidae Brues & Mela..., 1932 | | 1 | Art | Taxom |
| Cryptococcidae | | 1 | Art | Taxom |
| Cryptophagidae Kirby, 1937 | Schimmelkäfer | 27 | Arten | Taxom |
| Ctenophthalmidae Rothschild, 1915 | | 25 | Arten | Taxom |
| Ctenostylidae Bigot, 1882 | | 1 | Art | Taxom |
| Ctenuchidae (W. Kirby, 1837) | Widderbären | 26 | Arten | Taxom |
| Cucujidae Latreille, 1802 | Plattkäfer | 99 | Arten | Taxom |
| Culicidae Meigen, 1818 | Stechmücken | 1068 | Arten | Taxom |
| Cupedidae Laporte, 1836 | | 8 | Arten | Taxom |
| Curculionidae Latreille, 1802 | Rüsselkäfer | 12451 | Arten | Taxom |
| Curtonotidae Duda, 1934 | | 27 | Arten | Taxom |
| Cydnidae Billberg, 1820 | Erdwanzen | 68 | Arten | Taxom |
| Cylindrachetidae Giglio-Tos, 1914 | | 1 | Art | Taxom |
| Cylindrotomidae (Mulsant, 1842) | Moosmücken | 1 | Art | Taxom |
| Cymidae Baerensprung, 1860 | | 7 | Arten | Taxom |
| Cynipidae Latreille, 1802 | Echte Gallwespen | 15 | Arten | Taxom |
| Cypselosomatidae Hennig, 1958 | | 3 | Arten | Taxom |
| Dactylopiidae Signoret, 1875 | | 9 | Arten | Taxom |
| Dalceridae Dyar, 1898 | | 30 | Arten | Taxom |
| Danaidae (Boisduval, 1833) | | 4 | Arten | Taxom |
| Dascillidae Guérin-Ménev..., 1843 | Moorweichkäfer | 1 | Art | Taxom |
| Dasydemellidae | | 10 | Arten | Taxom |
| Delphacidae Leach, 1815 | Spornzikaden | 258 | Arten | Taxom |
| Delpuenteblattidae Martins-Neto..., 2007 | | 3 | Arten | Taxom |
| Derbidae Spinola, 1839 | | 200 | Arten | Taxom |
| Dericorythidae Jacobson & B..., 1902 | | 1 | Art | Taxom |
| Dermestidae Hope, 1840 | Pelzkäfer | 152 | Arten | Taxom |
| Derodontidae LeConte, 1861 | Knopfkäfer | 4 | Arten | Taxom |
| Diadocidiidae Winnertz, 1863 | Schleimröhrenmücken | 3 | Arten | Taxom |
| Diamphipnoidae Ricker, 1950 | | 11 | Arten | Taxom |
| Diapheromeridae Rehn & Hebard, 1909 | | 223 | Arten | Taxom |
| Diapriidae Latreille, 1796 | | 14 | Arten | Taxom |
| Diaspididae Maskell, 1878 | Austernschildläuse | 277 | Arten | Taxom |
| Diastatidae Hendel, 1917 | Laubstreufliegen | 3 | Arten | Taxom |
| Dictyopharidae Spinola, 1839 | Laternenträger | 73 | Arten | Taxom |
| Dilaridae Newman, 1853 | | 17 | Arten | Taxom |
| Dinidoridae Stål, 1867 | | 6 | Arten | Taxom |
| Diopsidae Billberg, 1820 | Stielaugenfliegen | 1 | Art | Taxom |
| Dioptidae (J. Bechyné, 1950) | | 1 | Art | Taxom |
| Diplatyidae (Verhoeff, 1902) | | 1 | Art | Taxom |
| Diprionidae Rohwer, 1911 | Buschhornblattwespen | 3 | Arten | Taxom |
| Dipsocoridae Dohrn, 1859 | | 1 | Art | Taxom |
| Discolomatidae Horn, 1878 | | 23 | Arten | Taxom |
| Ditomyiidae Keilin, 1919 | | 41 | Arten | Taxom |
| Dixidae Schiner, 1868 | Doppeladermücken | 16 | Arten | Taxom |
| Dolabellopsocidae Eertmoed, 1973 | | 26 | Arten | Taxom |
| Dolichopodidae Latreille, 1809 | Langbeinfliegen | 795 | Arten | Taxom |
| Douglasiidae Heinemann & ..., 1876 | Wippflügelfalter | 1 | Art | Taxom |
| Drepanidae Meyrick, 1895 | Eulenspinner | 25 | Arten | Taxom |
| Drosophilidae Rondani, 1856 | Essigfliegen | 561 | Arten | Taxom |
| Dryinidae Haliday, 1840 | Zikadenwespen | 90 | Arten | Taxom |
| Dryomyzidae Schiner, 1862 | Baumfliegen | 1 | Art | Taxom |
| Dryophthoridae (Schönherr, 1825) | | 2 | Arten | Taxom |
| Dryopidae Billberg, 1820 | Hakenkäfer | 44 | Arten | Taxom |
| Dynastidae (MacLeay, 1819) | Riesenkäfer | 2 | Arten | Taxom |
| Dysmorphoptilidae Handlirsch, 1906 | | 7 | Arten | Taxom |
| Dytiscidae Leach, 1815 | Echte Schwimmkäfer | 811 | Arten | Taxom |
| Echinophthiriidae Enderlein, 1904 | | 1 | Art | Taxom |
| Ecnomidae Ulmer, 1903 | | 48 | Arten | Taxom |
| Ectobiidae (Brunner von ..., 1865) | Waldschaben | 46 | Arten | Taxom |
| Ectopsocidae | | 22 | Arten | Taxom |
| Elachistidae Bruand, 1851 | Grasminierfalter | 806 | Arten | Taxom |
| Elateridae Leach, 1815 | Larven: Echte Drahtwürmer | 2043 | Arten | Taxom |
| Elcanidae Handlirsch, 1906 | | 4 | Arten | Taxom |
| Electrentomidae Enderlein, 1911 | | 3 | Arten | Taxom |
| Elenchidae Perkins, 1905 | | 4 | Arten | Taxom |
| Elipsocidae Pearman, 1936 | | 28 | Arten | Taxom |
| Elmidae Curtis, 1830 | Hakenkäfer | 504 | Arten | Taxom |
| Embiidae Burmeister, 1839 | | 25 | Arten | Taxom |
| Embolemidae Förster, 1856 | Widderkopfwespen | 1 | Art | Taxom |
| Empididae Latreille, 1809 | Tanzfliegen | 621 | Arten | Taxom |
| Empusidae Burmeister, 1838 | | 1 | Art | Taxom |
| Encyrtidae Walker, 1837 | | 279 | Arten | Taxom |
| Enderleinellidae Ewing, 1929 | | 5 | Arten | Taxom |
| Endomychidae Leach, 1815 | Stäublingskäfer | 266 | Arten | Taxom |
| Eneopteridae (Saussure, 1893) | | 45 | Arten | Taxom |
| Enicocephalidae Stål, 1860 | | 36 | Arten | Taxom |
| Eolepidopterigidae Rasnitsyn, 1983 | | 2 | Arten | Taxom |
| Eomeropidae Cockerell, 1909 | | 1 | Art | Taxom |
| Eoscarterellidae Evans, 1956 | | 1 | Art | Taxom |
| Epermeniidae Spuler, 1910 | Zahnflügelfalter | 10 | Arten | Taxom |
| Ephialtitidae Handlirsch, 1906 | | 2 | Arten | Taxom |
| Ephydridae Zetterstedt, 1837 | Salzfliegen | 341 | Arten | Taxom |
| Epipsocidae | | 76 | Arten | Taxom |
| Epipygidae Hamilton, 2001 | | 5 | Arten | Taxom |
| Epipyropidae Dyar, 1903 | | 3 | Arten | Taxom |
| Episactidae Burr, 1899 | | 3 | Arten | Taxom |
| Erebidae Leach, 1815 | | 6201 | Arten | Taxom |
| Eremiaphilidae Wood-Mason, 1889 | | 1 | Art | Taxom |
| Eriococcidae Cockerell, 1899 | Wollschildläuse | 116 | Arten | Taxom |
| Eriocottidae Spuler, 1898 | | 5 | Arten | Taxom |
| Eriocraniidae Rebel, 1901 | Trugfalter | 2 | Arten | Taxom |
| Erotylidae Latreille, 1802 | Faulholzkäfer | 79 | Arten | Taxom |
| Eucharitidae Latreille, 1809 | | 71 | Arten | Taxom |
| Eucinetidae Lacordaire, 1857 | Purzelkäfer | 8 | Arten | Taxom |
| Eucnemidae Eschscholtz, 1829 | Kammkäfer | 29 | Arten | Taxom |
| Eucoilidae (Thomson, 1862) | | 2 | Arten | Taxom |
| Eulophidae Westwood, 1829 | Erzwespen | 320 | Arten | Taxom |
| Eumastacidae Burr, 1898 | | 180 | Arten | Taxom |
| Eumenidae (Leach, 1815) | Lehmwespen | 1 | Art | Taxom |
| Eupelmidae Walker, 1833 | | 107 | Arten | Taxom |
| Eupterotidae Swinhoe, 1892 | | 8 | Arten | Taxom |
| Eurytomidae Walker, 1832 | | 118 | Arten | Taxom |
| Eustheniidae Tillyard, 1921 | | 3 | Arten | Taxom |
| Euteliidae Grote, 1882 | | 64 | Arten | Taxom |
| Evaniidae Latreille, 1802 | Hungerwespen | 144 | Arten | Taxom |
| Evocoidae Yeates, Irwi..., 2006 | Ocoafliegen | 1 | Art | Taxom |
| Fanniidae Schnabl & Dz..., 1911 | | 95 | Arten | Taxom |
| Figitidae Thomson, 1862 | | 44 | Arten | Taxom |
| Flatidae Spinola, 1839 | Schmetterlingszikaden | 67 | Arten | Taxom |
| Forficulidae Stephens, 1829 | Eigentliche Ohrwürmer | 46 | Arten | Taxom |
| Formicidae Latreille, 1809 | Ameisen | 3833 | Arten | Taxom |
| Fulgoridae Latreille, 1807 | Leuchtzirpen | 178 | Arten | Taxom |
| Gasteruptiidae Ashmead, 1900 | Gichtwespen | 4 | Arten | Taxom |
| Geinitziidae Handlirsch, 1906 | | 1 | Art | Taxom |
| Gelastocoridae Kirkaldy, 1897 | | 48 | Arten | Taxom |
| Gelechiidae Stainton, 1854 | Palpenfalter | 333 | Arten | Taxom |
| Geocoridae Baerensprung, 1860 | | 43 | Arten | Taxom |
| Geometridae Leach, 1815 | Spanner | 4335 | Arten | Taxom |
| Geotrupidae Latreille, 1802 | Blatthornkäfer | 207 | Arten | Taxom |
| Gerridae Leach, 1815 | Schneider | 160 | Arten | Taxom |
| Glaphyridae MacLeay, 1819 | | 10 | Arten | Taxom |
| Glaresidae Kolbe, 1905 | | 4 | Arten | Taxom |
| Glossosomatidae Wallengren, 1891 | | 140 | Arten | Taxom |
| Glyphipterigidae Stainton, 1854 | Halbmotten | 83 | Arten | Taxom |
| Goeridae Ulmer, 1903 | | 1 | Art | Taxom |
| Gracillariidae Stainton, 1854 | Blatttütenfalter | 195 | Arten | Taxom |
| Grammolingiidae Ren, 2002 | | 8 | Arten | Taxom |
| Gripopterygidae Enderlein, 1909 | | 121 | Arten | Taxom |
| Gryllacrididae Blanchard, 1845 | | 50 | Arten | Taxom |
| Gryllidae Bolivar, 1878 | Grillen | 120 | Arten | Taxom |
| Gryllotalpidae Saussure, 1870 | Maulwurfsgrillen | 59 | Arten | Taxom |
| Gyponidae | | 1 | Art | Taxom |
| Gyrinidae Latreille, 1802 | Drehkäfer | 120 | Arten | Taxom |
| Gyropidae Kellogg, 1896 | | 76 | Arten | Taxom |
| Haematopinidae Enderlein, 1904 | Tierläuse | 5 | Arten | Taxom |
| Haglidae Handlirsch, 1906 | | 3 | Arten | Taxom |
| Halictidae Thomson, 1869 | Schmalbienen und Furchenbienen | 979 | Arten | Taxom |
| Halictophagidae Perkins, 1905 | | 12 | Arten | Taxom |
| Halimococcidae Brown & McKe..., 1962 | | 1 | Art | Taxom |
| Haliplidae Aubé, 1836 | Wassertreter | 37 | Arten | Taxom |
| Hebridae Amyot and Se..., 1843 | Uferläufer | 23 | Arten | Taxom |
| Hedylidae Guenée, 1857 | | 32 | Arten | Taxom |
| Helcomyzidae Malloch, 1933 | Strandfliegen | 5 | Arten | Taxom |
| Heleomyzidae (Westwood, 1840) | Dunkelfliegen | 105 | Arten | Taxom |
| Heliconiidae (Swainson, 1822) | | 3 | Arten | Taxom |
| Helicophidae Mosely, 1953 | | 8 | Arten | Taxom |
| Helicopsychidae Ulmer, 1912 | | 73 | Arten | Taxom |
| Heliodinidae Heinemann & ..., 1876 | Sonnenmotten | 5 | Arten | Taxom |
| Heliozelidae Heinemann & ..., 1876 | Erzglanzfalter | 24 | Arten | Taxom |
| Helophoridae (Leach, 1815) | | 1 | Art | Taxom |
| Heloridae Förster, 1856 | Florfliegenwespen | 0 | Arten | Taxom |
| Helosciomyzidae Griffiths, 1972 | | 2 | Arten | Taxom |
| Helotidae Reitter, 1876 | | 3 | Arten | Taxom |
| Helotrephidae Esaki & China, 1927 | | 10 | Arten | Taxom |
| Hemerobiidae Latreille, 1802 | Blattlauslöwen | 122 | Arten | Taxom |
| Hemipsocidae Pearman, 1936 | | 2 | Arten | Taxom |
| Hennigmatidae Shcherbakov, 1995 | | 1 | Art | Taxom |
| Hepialidae Stephens, 1829 | Wurzelbohrer | 159 | Arten | Taxom |
| Heptapsogasteridae (Carriker, 1936) | | 6 | Arten | Taxom |
| Hesperiidae Latreille, 1809 | Dickkopfalter | 3316 | Arten | Taxom |
| Hesperinidae Hendel, 1928 | | 1 | Art | Taxom |
| Heterobathmiidae Kristensen &..., 1979 | | 3 | Arten | Taxom |
| Heteroceridae MacLeay, 1825 | Sägekäfer | 82 | Arten | Taxom |
| Heterocheilidae Mcalpine, 1991 | Halbbrückenfliegen | 2 | Arten | Taxom |
| Heterogastridae Stål, 1872 | | 2 | Arten | Taxom |
| Heterogynidae Rambur, 1866 | Federwidderchen | 1 | Art | Taxom |
| Heteromyzidae Fallen, 1820 | Scheufliegen | 13 | Arten | Taxom |
| Heteronemiidae Rehn, J. A. G., 1904 | | 70 | Arten | Taxom |
| Heteropterygidae Kirby, 1896 | | 3 | Arten | Taxom |
| Heterothripidae Bagnall, 1912 | | 40 | Arten | Taxom |
| Hippoboscidae Samouelle, 1819 | Lausfliegen | 182 | Arten | Taxom |
| Histeridae Gyllenhal, 1808 | Stutzkäfer | 1250 | Arten | Taxom |
| Hodotermitidae Desneux, 1904 | | 2 | Arten | Taxom |
| Homotomidae Heslop-Harrison, 1958 | | 5 | Arten | Taxom |
| Hoplopleuridae Ewing, 1929 | | 72 | Arten | Taxom |
| Hyblaeidae Hampson, 1903 | | 1 | Art | Taxom |
| Hybophthiridae Ewing, 1929 | | 1 | Art | Taxom |
| Hybosoridae Erichson, 1847 | | 226 | Arten | Taxom |
| Hybotidae Meigen, 1820 | Buckeltanzfliegen | 258 | Arten | Taxom |
| Hydraenidae Mulsant, 1844 | Langtaster-Wasserkäfer | 201 | Arten | Taxom |
| Hydrobiosidae Ulmer, 1905 | | 165 | Arten | Taxom |
| Hydrometridae Billberg, 1820 | Teichläufer | 40 | Arten | Taxom |
| Hydrophilidae Latreille, 1802 | Kolbenwasserkäfer | 926 | Arten | Taxom |
| Hydropsychidae Curtis, 1835 | | 413 | Arten | Taxom |
| Hydroptilidae Stephens, 1836 | | 511 | Arten | Taxom |
| Hydroscaphidae LeConte, 1874 | | 8 | Arten | Taxom |
| Hymenopodidae Giglio-Tos, 1919 | | 26 | Arten | Taxom |
| Hystrichopsyllidae Tiraboschi, 1904 | | 9 | Arten | Taxom |
| Ibaliidae Thomson, 1862 | Dornwurmwespen | 1 | Art | Taxom |
| Ichneumonidae Latreille, 1802 | Echte Schlupfwespen | 947 | Arten | Taxom |
| Idiostolidae Scudder, 1962 | | 2 | Arten | Taxom |
| Immidae Heppner, 1977 | | 28 | Arten | Taxom |
| Inbiomyiidae Buck, 2006 | | 9 | Arten | Taxom |
| Incurvariidae Spuler, 1898 | Echte Blattsackfalter | 5 | Arten | Taxom |
| Inocelliidae Navas, 1913 | | 1 | Art | Taxom |
| Ipsviciidae Tillyard, 1919 | | 1 | Art | Taxom |
| Ischnopsyllidae Wahlgren, 1907 | Fledermausflöhe | 16 | Arten | Taxom |
| Issidae Spinola, 1839 | Käferzikaden | 73 | Arten | Taxom |
| Ithonidae Newman, 1838 | | 4 | Arten | Taxom |
| Jascopidae Hamilton, 1971 | | 1 | Art | Taxom |
| Kalligrammatidae Handlirsch, 1906 | | 2 | Arten | Taxom |
| Kalotermitidae Froggatt, 1897 | Trockenholztermiten | 73 | Arten | Taxom |
| Kateretidae Kirkby, 1837 | Riedgras-Glanzkäfer | 9 | Arten | Taxom |
| Kermesidae Signoret, 1875 | Eichennapfläuse | 1 | Art | Taxom |
| Keroplatidae Rondani, 1856 | Langhornmücken | 182 | Arten | Taxom |
| Kerriidae Lindinger, 1937 | | 5 | Arten | Taxom |
| Kinnaridae Muir, 1925 | | 10 | Arten | Taxom |
| Kokiriidae McFarlane, 1964 | | 4 | Arten | Taxom |
| Krausichnidae Genise, 2004 | | 1 | Art | Taxom |
| Kuwaniidae MacGillvray, 1921 | | 1 | Art | Taxom |
| Labiduridae Verhoeff, 1902 | | 7 | Arten | Taxom |
| Labiidae (Burr, 1909) | | 66 | Arten | Taxom |
| Lachesillidae Pearman, 1936 | | 120 | Arten | Taxom |
| Lacturidae Heppner, 1995 | | 3 | Arten | Taxom |
| Laemobothriidae Mjöberg, 1910 | | 6 | Arten | Taxom |
| Lalacidae Hamilton, 1990 | | 18 | Arten | Taxom |
| Lampyridae Latreille, 1817 | Glühwürmchen | 1079 | Arten | Taxom |
| Largidae Amyot and Se..., 1843 | | 128 | Arten | Taxom |
| Lasiocampidae Harris, 1841 | Glucken | 333 | Arten | Taxom |
| Latridiidae Erichson, 1842 | Moderkäfer | 79 | Arten | Taxom |
| Lauxaniidae Macquart, 1835 | Faulfliegen | 228 | Arten | Taxom |
| Lecanodiaspididae Borchsenius, 1965 | | 10 | Arten | Taxom |
| Lecithoceridae Le Marchand, 1947 | | 8 | Arten | Taxom |
| Leiodidae Fleming, 1821 | Schwammkugelkäfer | 340 | Arten | Taxom |
| Lemoniidae Hampson, 1918 | Herbstspinner | 1 | Art | Taxom |
| Lepiceridae Hinton, 1936 | | 2 | Arten | Taxom |
| Lepidopsocidae Lienhard & S..., 2002 | | 29 | Arten | Taxom |
| Lepidostomatidae Ulmer, 1903 | | 3 | Arten | Taxom |
| Leptoceridae Leach, 1815 | | 205 | Arten | Taxom |
| Leptopodidae Amyot and Se..., 1843 | Steinläuferwanzen | 2 | Arten | Taxom |
| Leptopsyllidae Rothschild &..., 1915 | | 3 | Arten | Taxom |
| Leucospidae Fabricius, 1775 | Falten-Erzwespen | 42 | Arten | Taxom |
| Leuctridae Klapálek, 1905 | | 21 | Arten | Taxom |
| Limacodidae Duponchel, 1845 | Asselspinner | 127 | Arten | Taxom |
| Limnephilidae Kolenati, 1848 | | 81 | Arten | Taxom |
| Limnichidae Erichson, 1846 | Uferpillenkäfer | 79 | Arten | Taxom |
| Limoniidae (Speiser, 1909) | Stelzmücken | 234 | Arten | Taxom |
| Linognathidae Webb, 1946 | | 11 | Arten | Taxom |
| Liopteridae Ashmead, 1895 | | 8 | Arten | Taxom |
| Liposcelididae Enderlein, 1911 | Bücherläuse | 61 | Arten | Taxom |
| Liturgusidae Giglio-Tos, 1919 | | 32 | Arten | Taxom |
| Liviidae Low, 1879 | | 45 | Arten | Taxom |
| Locustopsidae Handlirsch, 1906 | | 22 | Arten | Taxom |
| Lonchaeidae Loew, 1861 | Lanzenfliegen | 85 | Arten | Taxom |
| Lonchopteridae Curtis, 1839 | Lanzenfliegen | 1 | Art | Taxom |
| Lophocoronidae Common, 1973 | | 1 | Art | Taxom |
| Lophopidae Stål, 1866 | | 5 | Arten | Taxom |
| Lucanidae Latreille, 1804 | Hirschkäfer | 374 | Arten | Taxom |
| Lutrochidae Kasap & Crowson, 1975 | | 11 | Arten | Taxom |
| Lycaenidae Leach, 1815 | Bläulinge | 2639 | Arten | Taxom |
| Lycidae Laporte, 1836 | Rotdeckenkäfer | 45 | Arten | Taxom |
| Lygaeidae Schilling, 1829 | Bodenwanzen | 290 | Arten | Taxom |
| Lygistorrhinidae Hendel, 1936 | | 1 | Art | Taxom |
| Lymexylidae Fleming, 1821 | Werftkäfer | 17 | Arten | Taxom |
| Lyonetiidae Stainton, 1854 | Langhorn-Blattminierfalter | 28 | Arten | Taxom |
| Macroveliidae McKinstry, 1942 | | 1 | Art | Taxom |
| Malacopsyllidae Baker, 1905 | | 2 | Arten | Taxom |
| Malcidae Stål, 1865 | | 2 | Arten | Taxom |
| Mancusoblattidae Martins-Neto..., 2005 | | 4 | Arten | Taxom |
| Mantidae Burmeister, 1838 | Fangschrecken | 193 | Arten | Taxom |
| Mantispidae Leach, 1815 | Fanghafte | 136 | Arten | Taxom |
| Mantoididae Giglio-Tos, 1927 | | 10 | Arten | Taxom |
| Margarodidae Newstead, 1901 | Höhlenschildläuse | 12 | Arten | Taxom |
| Mastotermitidae Desneux, 1904 | Riesentermiten | 1 | Art | Taxom |
| Mauroniscidae Majer, 1995 | | 19 | Arten | Taxom |
| Megachilidae Schenk, 1860 | Bauchsammlerbienen | 985 | Arten | Taxom |
| Megalodontesidae Konow, 1897 | | 1 | Art | Taxom |
| Megalopodidae Latreille, 1802 | | 234 | Arten | Taxom |
| Megalopygidae Herrich-Schä..., 1855 | | 62 | Arten | Taxom |
| Megalyridae Schletterer, 1889 | | 2 | Arten | Taxom |
| Megamerinidae Hendel, 1913 | Borkenfliegen | 0 | Arten | Taxom |
| Megarididae McAtee & Mal..., 1928 | | 4 | Arten | Taxom |
| Megaspilidae Ashmead, 1893 | | 1 | Art | Taxom |
| Melandryidae Leach, 1815 | Düsterkäfer | 59 | Arten | Taxom |
| Melanthripidae Bagnall, 1913 | | 1 | Art | Taxom |
| Melittidae Schenk, 1860 | Sägehornbienen | 2 | Arten | Taxom |
| Meloidae Gyllenhal, 1810 | Blasenkäfer | 448 | Arten | Taxom |
| Melolonthidae (Leach, 1817) | Maikäfer | 2 | Arten | Taxom |
| Melyridae Leach, 1815 | Wollhaarkäfer | 28 | Arten | Taxom |
| Membracidae Germar, 1821 | Buckelzikaden | 1284 | Arten | Taxom |
| Mendozachoristidae Brauckmann &..., 2010 | | 1 | Art | Taxom |
| Menoponidae Mjöberg, 1910 | | 250 | Arten | Taxom |
| Meropeidae Espen-Petersen, 1921 | | 2 | Arten | Taxom |
| Merothripidae Hood, 1914 | | 9 | Arten | Taxom |
| Meruidae Spangler & S..., 2005 | | 1 | Art | Taxom |
| Mesoblattinidae Handlirsch, 1906 | | 6 | Arten | Taxom |
| Mesochrysopidae Handlirsch, 1906 | | 8 | Arten | Taxom |
| Mesopsocidae Enderlein, 1903 | | 1 | Art | Taxom |
| Mesopsychidae Tillyard, 1917 | | 1 | Art | Taxom |
| Mesoveliidae Douglas and ..., 1867 | Hüftwasserläufer | 16 | Arten | Taxom |
| Micromalthidae Barber, 1913 | | 1 | Art | Taxom |
| Micronectidae Jaczewski, 1924 | | 33 | Arten | Taxom |
| Micropezidae Illiger, 1798 | Stelzenfliegen | 241 | Arten | Taxom |
| Micropterigidae Herrich-Schä..., 1855 | Urmotten | 3 | Arten | Taxom |
| Microthoraciidae Kim and Ludwig, 1978 | | 3 | Arten | Taxom |
| Milichiidae Schiner, 1862 | Nistfliegen | 67 | Arten | Taxom |
| Mimallonidae Burmeister, 1878 | | 148 | Arten | Taxom |
| Miridae Hahn, 1831 | Blindwanzen | 2125 | Arten | Taxom |
| Mnesarchaeidae Eyer, 1924 | | 5 | Arten | Taxom |
| Mogoplistidae Saussure, 1877 | | 19 | Arten | Taxom |
| Monomachidae Ashmead, 1902 | | 18 | Arten | Taxom |
| Monophlebidae Signoret, 1875 | Riesenschildläuse | 55 | Arten | Taxom |
| Monotomidae Laporte, 1840 | Detrituskäfer | 29 | Arten | Taxom |
| Mordellidae Latreille, 1802 | Stachelkäfer | 287 | Arten | Taxom |
| Musapsocidae Mockford, 1967 | | 4 | Arten | Taxom |
| Muscidae Latreille, 1802 | Echte Fliegen | 879 | Arten | Taxom |
| Mutillidae André, 1907 | Ameisenwespen | 191 | Arten | Taxom |
| Mycetophagidae Leach, 1815 | Baumschwammkäfer | 12 | Arten | Taxom |
| Mycetophilidae Newman, 1834 | Pilzmücken | 1318 | Arten | Taxom |
| Mycteridae Blanchard, 1845 | Haarscheinrüssler | 67 | Arten | Taxom |
| Mydidae Bezzi, 1903 | Mydasfliegen | 87 | Arten | Taxom |
| Myerslopiidae Evans, 1957 | | 10 | Arten | Taxom |
| Mymaridae Haliday, 1833 | Eierschlupfwespen | 199 | Arten | Taxom |
| Mymarommatidae Debauche, 1948 | | 3 | Arten | Taxom |
| Myopsocidae Enderlein, 1907 | | 21 | Arten | Taxom |
| Myrmecolacidae Saunders, 1872 | | 12 | Arten | Taxom |
| Myrmecophilidae Saussure, 1874 | Ameisengrillen | 2 | Arten | Taxom |
| Myrmeleontidae Latreille, 1802 | Ameisenjungfern | 224 | Arten | Taxom |
| Mythicomyiidae Melander, 1902 | Zwergwollschweber | 1 | Art | Taxom |
| Nabidae Costa, 1852 | Sichelwanzen | 30 | Arten | Taxom |
| Nannochoristidae Tillyard, 1917 | | 3 | Arten | Taxom |
| Naucoridae Leach, 1815 | Ruderwanzen | 167 | Arten | Taxom |
| Necrotauliidae Handlirsch, 1906 | | 1 | Art | Taxom |
| Nemestrinidae Macquart, 1834 | | 69 | Arten | Taxom |
| Nemonychidae Bedel, 1882 | Ritterspornrüssler | 29 | Arten | Taxom |
| Nemopteridae Rambur, 1842 | Fadenhafte | 12 | Arten | Taxom |
| Nemouridae Newman, 1853 | | 30 | Arten | Taxom |
| Neopseustidae Hering, 1925 | | 3 | Arten | Taxom |
| Neotheoridae Kirstensen, 1978 | | 0 | Arten | Taxom |
| Nepidae Latreille, 1802 | Skorpionswanzen | 80 | Arten | Taxom |
| Nepticulidae Stainton, 1854 | Zwergminierfalter | 114 | Arten | Taxom |
| Neriidae Hendel, 1916 | | 38 | Arten | Taxom |
| Neurostigmatidae | | 9 | Arten | Taxom |
| Nitidulidae Latreille, 1802 | Glanzkäfer | 80 | Arten | Taxom |
| Nocticolidae Bolivar, 1892 | | 28 | Arten | Taxom |
| Noctuidae Latreille, 1809 | Erdraupen | 2102 | Arten | Taxom |
| Nogodinidae Melichar, 1898 | | 48 | Arten | Taxom |
| Nolidae Hampson, 1894 | Graueulchen | 140 | Arten | Taxom |
| Nosodendridae Erichson, 1846 | Saftkäfer | 14 | Arten | Taxom |
| Noteridae C. G. Thomson, 1860 | Ruderschwimmer | 180 | Arten | Taxom |
| Notodontidae Stephens, 1829 | Zahnspinner | 1605 | Arten | Taxom |
| Notonectidae Latreille, 1802 | Rückenschwimmer | 126 | Arten | Taxom |
| Nyctiboridae Brunner von ..., 1893 | | 6 | Arten | Taxom |
| Nymphalidae Rafinesque, 1815 | Edelfalter | 5040 | Arten | Taxom |
| Nymphidae Rambur, 1842 | | 4 | Arten | Taxom |
| Ochodaeidae Mulsant & Rey, 1870 | | 20 | Arten | Taxom |
| Ochteridae Kirkaldy, 1906 | | 2 | Arten | Taxom |
| Odiniidae Hendel, 1920 | | 25 | Arten | Taxom |
| Odontoceridae Wallengren, 1891 | | 35 | Arten | Taxom |
| Oecanthidae (Blanchard, 1845) | | 27 | Arten | Taxom |
| Oeconesidae Tillyard, 1921 | | 4 | Arten | Taxom |
| Oecophoridae Bruand, 1851 | Breitflügelmotten | 161 | Arten | Taxom |
| Oedemeridae Latreille, 1810 | Engdeckenflügler | 36 | Arten | Taxom |
| Oestridae Leach, 1815 | Biesfliegen | 51 | Arten | Taxom |
| Oligotomidae Enderlein, 1909 | | 3 | Arten | Taxom |
| Omaniidae Cobben, 1970 | | 0 | Arten | Taxom |
| Ommatidae Sharp & Muir, 1912 | | 2 | Arten | Taxom |
| Ommexechidae Bolivar, 1884 | | 45 | Arten | Taxom |
| Opomyzidae (Fallen, 1820) | Grasfliegen | 3 | Arten | Taxom |
| Opostegidae Meyrick, 1893 | | 14 | Arten | Taxom |
| Ormyridae Förster, 1856 | | 1 | Art | Taxom |
| Orphnidae Orphnus mash..., 1908 | | 1 | Art | Taxom |
| Orsodacnidae Thomson, 1859 | | 4 | Arten | Taxom |
| Ortheziidae Green, 1896 | Röhrenschildläuse | 57 | Arten | Taxom |
| Orussidae Newman, 1834 | | 10 | Arten | Taxom |
| Osmylidae Leach, 1815 | Bachhafte | 24 | Arten | Taxom |
| Otitidae (Macquart, 1835) | Schmuckfliegen | 238 | Arten | Taxom |
| Oulopterygidae Rehn, 1951 | | 1 | Art | Taxom |
| Oviparosiphidae Shaposhnikov, 1979 | | 3 | Arten | Taxom |
| Oxycarenidae Stål, 1862 | | 16 | Arten | Taxom |
| Oxypeltidae Lacordaire, 1869 | | 4 | Arten | Taxom |
| Pachygronthidae Stål, 1865 | | 21 | Arten | Taxom |
| Pachymeridiidae Handlirsch, 1906 | | 1 | Art | Taxom |
| Pachynomidae Stål, 1873 | | 1 | Art | Taxom |
| Pachytroctidae Enderlein, 1911 | | 14 | Arten | Taxom |
| Palaeoaphididae Richards, 1966 | | 1 | Art | Taxom |
| Palaeoleontidae Martins-Neto, 1992 | | 16 | Arten | Taxom |
| Palaeontinidae Handlirsch, 1906 | | 9 | Arten | Taxom |
| Palaeosetidae Turner, 1922 | | 2 | Arten | Taxom |
| Palaephatidae Davis, 1986 | | 28 | Arten | Taxom |
| Pallopteridae Loew, 1862 | Zitterfliegen | 8 | Arten | Taxom |
| Pamphagidae Burmeister, 1840 | Steinschrecken | 5 | Arten | Taxom |
| Pamphiliidae Cameron, 1890 | Gespinstblattwespen | 2 | Arten | Taxom |
| Panfiloviidae Makarkin, 1990 | | 1 | Art | Taxom |
| Panorpidae Linnaeus, 1758 | Skorpionsfliegen | 13 | Arten | Taxom |
| Panorpodidae Byers, 1965 | | 1 | Art | Taxom |
| Pantophthalmidae Williston, 1906 | | 20 | Arten | Taxom |
| Papilionidae Latreille, 1802 | Ritter | 561 | Arten | Taxom |
| Paragryllidae (Desutter-Gra..., 1987) | | 47 | Arten | Taxom |
| Parastrachiidae Oshanin, 1922 | | 0 | Arten | Taxom |
| Passalidae Leach, 1815 | Zuckerkäfer | 387 | Arten | Taxom |
| Pecaroecidae Kéler, 1963 | | 1 | Art | Taxom |
| Pediciidae Osten Sacken, 1860 | | 3 | Arten | Taxom |
| Pedicinidae Enderlein, 1904 | | 3 | Arten | Taxom |
| Pediculidae Leach, 1817 | Menschenläuse | 2 | Arten | Taxom |
| Pelecinidae Haliday, 1839 | | 2 | Arten | Taxom |
| Pelecorhynchidae Philip, 1941 | | 7 | Arten | Taxom |
| Peloridiidae Breddin, 1897 | | 8 | Arten | Taxom |
| Peltoperlidae Claassen, 1931 | | 1 | Art | Taxom |
| Pentatomidae Leach, 1815 | Baumwanzen | 485 | Arten | Taxom |
| Pereboriidae Zalessky, 1930 | | 1 | Art | Taxom |
| Perforissidae Shcherbakov, 2007 | | 2 | Arten | Taxom |
| Pergidae Rohwer, 1911 | | 81 | Arten | Taxom |
| Perilampidae Latreille, 1809 | | 21 | Arten | Taxom |
| Peripsocidae Roesler, 1944 | | 20 | Arten | Taxom |
| Periscelididae Oldenberg, 1914 | Saftfliegen | 32 | Arten | Taxom |
| Perissommatidae Colless, 1962 | | 1 | Art | Taxom |
| Perlapsocidae Iraja Pinto ..., 2000 | | 1 | Art | Taxom |
| Perlidae (Latreille, 1802) | | 427 | Arten | Taxom |
| Perlodidae Klapálek, 1912 | | 39 | Arten | Taxom |
| Permithonidae Tillyard, 1922 | | 1 | Art | Taxom |
| Permochoristidae Tillyard, 1918 | | 4 | Arten | Taxom |
| Permocupedidae Martynov, 1933 | | 3 | Arten | Taxom |
| Permosynidae Tillyard, 1924 | | 11 | Arten | Taxom |
| Phalacridae Leach, 1815 | Glattkäfer | 4 | Arten | Taxom |
| Phalangopsidae (Chopard, 1949) | | 244 | Arten | Taxom |
| Phasmatidae Roberts, 1944 | | 75 | Arten | Taxom |
| Phasmomimidae Sharov, 1968 | | 1 | Art | Taxom |
| Phengodidae LeConte, 1861 | Federleuchtkäfer | 205 | Arten | Taxom |
| Philopotamidae Stephens, 1829 | | 275 | Arten | Taxom |
| Philopteridae Burmeister, 1830 | Federlinge | 667 | Arten | Taxom |
| Philotarsidae Pearman, 1936 | | 17 | Arten | Taxom |
| Phlaeothripidae Uzel, 1895 | | 570 | Arten | Taxom |
| Phloeidae Amyot & Serv..., 1843 | | 0 | Arten | Taxom |
| Phoenicococcidae Stickney, 1934 | | 1 | Art | Taxom |
| Phoridae Curtis, 1833 | Buckelfliegen | 1289 | Arten | Taxom |
| Phryganeidae (Leach, 1815) | | 5 | Arten | Taxom |
| Phycosecidae Crowson, 1952 | | 0 | Arten | Taxom |
| Phylliidae Redtenbacher, 1906 | Wandelnde Blätter | 1 | Art | Taxom |
| Phylloxeridae Herrich-Scha..., 1854 | Zwergblattläuse | 2 | Arten | Taxom |
| Phyloblattidae Schneider, 1983 | | 1 | Art | Taxom |
| Pieridae Duponchel, 1835 | Weißlinge | 748 | Arten | Taxom |
| Piesmatidae Amyot & Audi..., 1843 | Meldenwanzen | 4 | Arten | Taxom |
| Piophilidae Macquart, 1835 | Käsefliegen | 8 | Arten | Taxom |
| Pipunculidae Walker, 1834 | Augenfliegen | 220 | Arten | Taxom |
| Plataspidae (Dallas, 1851) | Breitschildwanzen | 1 | Art | Taxom |
| Platygastridae Haliday, 1833 | | 22 | Arten | Taxom |
| Platyperlidae Sinitshenkova, 1982 | | 1 | Art | Taxom |
| Platypezidae Fallen, 1815 | Pilzfliegen | 13 | Arten | Taxom |
| Platystomatidae Schiner, 1862 | Breitmundfliegen | 18 | Arten | Taxom |
| Pleidae Fieber, 1817 | Zwergrückenschwimmer | 16 | Arten | Taxom |
| Plokiophilidae China, 1953 | | 1 | Art | Taxom |
| Plumariidae Bischoff, 1914 | | 5 | Arten | Taxom |
| Plutellidae Guenée, 1845 | Halbmotten | 31 | Arten | Taxom |
| Podoscirtidae Saussure, 1878 | | 166 | Arten | Taxom |
| Polycentropodidae Ulmer, 1903 | | 185 | Arten | Taxom |
| Polyctenidae Westwood, 1874 | Fledermauswanzen | 15 | Arten | Taxom |
| Polyplacidae Fahrenholz, 1912 | | 28 | Arten | Taxom |
| Pompilidae Latreille, 1805 | Wegwespen | 568 | Arten | Taxom |
| Poroblattinidae Handlirsch, 1906 | | 2 | Arten | Taxom |
| Potamocoridae Štys & Jansson, 1988 | | 8 | Arten | Taxom |
| Prezottophlebiidae Martins-Neto, 2007 | | 1 | Art | Taxom |
| Priasilphidae Crowson, 1973 | | 1 | Art | Taxom |
| Prionoglarididae Badonnel, 1951 | | 3 | Arten | Taxom |
| Prisopodidae Brunner von ..., 1893 | | 68 | Arten | Taxom |
| Proctotrupidae Latreille, 1802 | Zehrwespen | 2 | Arten | Taxom |
| Prodoxidae Riley, 1881 | Rosen-Blattsackfalter | 6 | Arten | Taxom |
| Proedischiidae Pinto & Orne..., 1978 | | 7 | Arten | Taxom |
| Progonocimicidae Handlirsch, 1906 | | 2 | Arten | Taxom |
| Promecheilidae Lacordaire, 1859 | | 15 | Arten | Taxom |
| Pronemouridae Liu, Sinitsh..., 2011 | | 5 | Arten | Taxom |
| Propalticidae Crowson, 1952 | | 1 | Art | Taxom |
| Prophalangopsidae Saussure, 1878 | | 7 | Arten | Taxom |
| Prosbolidae Handlirsch, 1906 | | 4 | Arten | Taxom |
| Proscopiidae Serville, 1838 | Pferdekopfschrecken | 227 | Arten | Taxom |
| Prostomidae C. G. Thomson, 1859 | Schaufelkäfer | 2 | Arten | Taxom |
| Protocucujidae Crowson, 1954 | | 1 | Art | Taxom |
| Protophasmatidae Brongniart, 1885 | | 2 | Arten | Taxom |
| Psephenidae Lacordaire, 1854 | Bachkäfer | 19 | Arten | Taxom |
| Pseudocaeciliidae Pearman, 1936 | | 9 | Arten | Taxom |
| Pseudococcidae Heymons, 1915 | Schmierläuse | 180 | Arten | Taxom |
| Pseudonerthridae Martins-Neto..., 2005 | | 1 | Art | Taxom |
| Pseudophasmatidae Kirby, 1896 | | 339 | Arten | Taxom |
| Pseudophyllodromiidae Hebard, 1929 | | 394 | Arten | Taxom |
| Pseudopomyzidae (Mcalpine, 1966) | Scheingrasfliegen | 5 | Arten | Taxom |
| Psilidae Macquart, 1835 | Nacktfliegen | 8 | Arten | Taxom |
| Psocidae Samouelle, 1819 | Holzläuse | 223 | Arten | Taxom |
| Psocidiidae Tillyard, 1926 | | 1 | Art | Taxom |
| Psoquillidae Lienhard & S..., 2002 | | 4 | Arten | Taxom |
| Psychidae Boisduval, 1828 | Echte Sackträger | 48 | Arten | Taxom |
| Psychodidae Newman, 1834 | Schmetterlingsmücken | 745 | Arten | Taxom |
| Psychomyiidae Walker, 1852 | | 2 | Arten | Taxom |
| Psychopsidae Handlirsch, 1906 | | 2 | Arten | Taxom |
| Psyllidae Latreille, 1807 | Blattflöhe | 269 | Arten | Taxom |
| Psyllipsocidae Enderlein, 1903 | | 7 | Arten | Taxom |
| Pteromalidae Dalman, 1820 | | 290 | Arten | Taxom |
| Pteronarcyidae Enderlein, 1909 | | 4 | Arten | Taxom |
| Pterophoridae Zeller, 1841 | Federgeistchen | 487 | Arten | Taxom |
| Pthiridae Leach, 1817 | | 1 | Art | Taxom |
| Ptiliidae Heer, 1843 | Federflügler | 167 | Arten | Taxom |
| Ptilodactylidae Laporte, 1836 | | 131 | Arten | Taxom |
| Ptiloneuridae Eertmoed, 1973 | | 186 | Arten | Taxom |
| Ptinidae Latreille, 1802 | Diebkäfer | 174 | Arten | Taxom |
| Ptychopteridae Osten Sacken, 1862 | Faltenmücken | 2 | Arten | Taxom |
| Pulicidae Billberg, 1820 | Menschenflöhe | 35 | Arten | Taxom |
| Putoidae Beardsley, 1969 | | 8 | Arten | Taxom |
| Pygidicranidae (Verhoeff, 1902) | | 25 | Arten | Taxom |
| Pygiopsyllidae Wagner, 1939 | | 7 | Arten | Taxom |
| Pyralidae Latreille, 1802 | Echte Zünsler | 746 | Arten | Taxom |
| Pyrgomorphidae Brunner von ..., 1874 | Kegelkopfschrecken | 14 | Arten | Taxom |
| Pyrgotidae Schiner, 1868 | | 56 | Arten | Taxom |
| Pyrochroidae Latreille, 1807 | Feuerkäfer | 13 | Arten | Taxom |
| Pyrrhocoridae Dohrn, 1859 | Feuerwanzen | 25 | Arten | Taxom |
| Pythidae Solier, 1834 | Drachenkäfer | 1 | Art | Taxom |
| Rafaelianidae Engel & Nel, 2017 | | 2 | Arten | Taxom |
| Rangomaramidae Jaschhof & D..., 2002 | Langflügel-Pilzmücken | 17 | Arten | Taxom |
| Raphidiidae Latreille, 1810 | Kamelhalsfliegen | 9 | Arten | Taxom |
| Raphoglidae Béthoux & al., 2002 | | 1 | Art | Taxom |
| Reduviidae Latreille, 1807 | Raubwanzen | 1476 | Arten | Taxom |
| Rhagionemestriidae Ussatchov, 1968 | | 1 | Art | Taxom |
| Rhagionidae Latreille, 1802 | Schnepfenfliegen | 78 | Arten | Taxom |
| Rhaphidophoridae Walker, 1869 | Buckelschrecken | 29 | Arten | Taxom |
| Rhiniidae Brauer & Ber..., 1889 | | 1 | Art | Taxom |
| Rhinophoridae Robineau-Des..., 1863 | Asselfliegen | 9 | Arten | Taxom |
| Rhinotermitidae Froggatt, 1897 | Nasentermiten | 29 | Arten | Taxom |
| Rhipiceridae Latreille, 1834 | Fächerkäfer | 1 | Art | Taxom |
| Rhipiphoridae Gemminger & ..., 1870 | Fächerkäfer | 5 | Arten | Taxom |
| Rhizoecidae Williams, 1969 | | 57 | Arten | Taxom |
| Rhopalidae Amyot & Serv..., 1843 | Glasflügelwanzen | 78 | Arten | Taxom |
| Rhopalopsyllidae Oudemans, 1909 | | 115 | Arten | Taxom |
| Rhopalosomatidae Ashmead, 1896 | | 10 | Arten | Taxom |
| Rhyacophilidae Stephens, 1836 | | 1 | Art | Taxom |
| Rhynchitidae Gistel, 1848 | Blattstecher | 15 | Arten | Taxom |
| Rhyparochromidae Amyot & Serv..., 1843 | | 216 | Arten | Taxom |
| Rhyphidae (Newman, 1834) | | 1 | Art | Taxom |
| Ricaniidae Amyot & Audi..., 1843 | | 9 | Arten | Taxom |
| Richardidae Snow, 1896 | | 109 | Arten | Taxom |
| Richardiidae (Snow, 1896) | | 40 | Arten | Taxom |
| Ricinidae Neumann, 1890 | | 59 | Arten | Taxom |
| Rigattopteridae Pinto, 1996 | | 1 | Art | Taxom |
| Riodinidae Grote, 1895 | Würfelfalter | 1837 | Arten | Taxom |
| Ripiphoridae Gemminger & ..., 1870 | Fächerkäfer | 13 | Arten | Taxom |
| Ripipterygidae Ander, 1939 | | 62 | Arten | Taxom |
| Roeslerianidae Martins-Neto, 1997 | | 1 | Art | Taxom |
| Roeslerstammiidae Bruand, 1850 | | 1 | Art | Taxom |
| Romaleidae Brunner von ..., 1893 | Lümmelheuschrecken | 452 | Arten | Taxom |
| Ropalomeridae Linder, 1930 | | 33 | Arten | Taxom |
| Rotoitidae BouÄek & No..., 1987 | | 1 | Art | Taxom |
| Rutelidae (MacLeay, 1819) | Gartenkäfer | 175 | Arten | Taxom |
| Saaloscytinidae Brauckmann, ..., 2006 | | 1 | Art | Taxom |
| Saldidae Amyot and Se..., 1843 | Springwanzen | 47 | Arten | Taxom |
| Salpingidae Leach, 1815 | Scheinrüßler | 19 | Arten | Taxom |
| Santanmantidae Grimaldi, 2003 | | 1 | Art | Taxom |
| Sapygidae Latreille, 1810 | Keulenwespen | 1 | Art | Taxom |
| Sarcophagidae Macquart, 1834 | Aasfliegen | 767 | Arten | Taxom |
| Saturniidae Boisduval, 1837 | Augenspinner | 925 | Arten | Taxom |
| Scarabaeidae Latreille, 1802 | Blatthornkäfer | 7023 | Arten | Taxom |
| Scathophagidae Robineau-Des..., 1830 | Dungfliegen | 11 | Arten | Taxom |
| Scatopsidae Newman, 1834 | Dungmücken | 26 | Arten | Taxom |
| Scelembiidae Ross, 2001 | | 15 | Arten | Taxom |
| Scelionidae Haliday, 1839 | | 182 | Arten | Taxom |
| Scenopinidae Burmeister, 1835 | Fensterfliegen | 20 | Arten | Taxom |
| Schizoblattidae Durden, 1969 | | 1 | Art | Taxom |
| Schizopteridae Reuter, 1891 | | 113 | Arten | Taxom |
| Schreckensteiniidae Fletcher, 1929 | | 1 | Art | Taxom |
| Sciaridae Billberg, 1820 | Trauermücken | 62 | Arten | Taxom |
| Sciomyzidae Fallen, 1820 | Hornfliegen | 92 | Arten | Taxom |
| Scirtidae Fleming, 1821 | Sumpffieberkäfer | 36 | Arten | Taxom |
| Sclerogibbidae Ashmead, 1902 | | 3 | Arten | Taxom |
| Scolebythidae Evans, 1963 | | 1 | Art | Taxom |
| Scoliidae Leach, 1815 | Dolchwespen | 23 | Arten | Taxom |
| Scolytidae (Latreille, 1807) | Borkenkäfer | 8 | Arten | Taxom |
| Scraptiidae Mulsant, 1856 | Scheinstachelkäfer | 30 | Arten | Taxom |
| Scutelleridae Leach, 1815 | Schildwanzen | 39 | Arten | Taxom |
| Scydmaenidae (Leach, 1815) | Ameisenkäfer | 703 | Arten | Taxom |
| Scythrididae Rebel, 1901 | Heidefalter | 3 | Arten | Taxom |
| Scytinopteridae Handlirsch, 1906 | | 4 | Arten | Taxom |
| Sematuridae Guenée, 1858 | | 12 | Arten | Taxom |
| Sepsidae Walker, 1833 | Schwingfliegen | 45 | Arten | Taxom |
| Sepulcidae Rasnitsyn, 1968 | | 1 | Art | Taxom |
| Serendipidae Evenhuis, 1994 | | 0 | Arten | Taxom |
| Sericostomatidae Stephens, 1836 | | 10 | Arten | Taxom |
| Serritermitidae Emerson & Kr..., 1975 | | 3 | Arten | Taxom |
| Sesiidae Boisduval, 1828 | Glasflügler | 102 | Arten | Taxom |
| Sialidae Leach, 1815 | Schlammfliegen | 8 | Arten | Taxom |
| Sierolomorphidae Krombein, 1951 | | 0 | Arten | Taxom |
| Signiphoridae Howard, 1894 | | 31 | Arten | Taxom |
| Silphidae Latreille, 1807 | Aaskäfer | 31 | Arten | Taxom |
| Silvanidae Kirby, 1837 | Plattkäfer | 99 | Arten | Taxom |
| Simuliidae Newman, 1834 | Kriebelmücken | 355 | Arten | Taxom |
| Sinembiidae Huang & Nel, 2009 | | 2 | Arten | Taxom |
| Sinojuraphididae Huang & Nel, 2008 | | 1 | Art | Taxom |
| Siricidae Billberg, 1820 | Holzwespen | 5 | Arten | Taxom |
| Sisyridae Handlirsch, 1908 | Schwammfliegen | 23 | Arten | Taxom |
| Smicripidae Horn, 1879 | | 0 | Arten | Taxom |
| Somatiidae Hendel, 1935 | | 7 | Arten | Taxom |
| Spanioderidae Handlirsch, 1906 | | 2 | Arten | Taxom |
| Sphaeritidae Schuckard, 1839 | Scheinstutzkäfer | 1 | Art | Taxom |
| Sphaeriusidae Erichson, 1845 | Kugelkäfer | 0 | Arten | Taxom |
| Sphaeroceridae Macquart, 1835 | Dungfliegen | 279 | Arten | Taxom |
| Sphaeropsocidae Kolbe, 1883 | | 10 | Arten | Taxom |
| Sphecidae Latreille, 1802 | Grabwespen | 167 | Arten | Taxom |
| Sphecorydaloididae Pinto, 1994 | | 1 | Art | Taxom |
| Sphindidae Jacquelin du..., 1860 | Schleimpilzkäfer | 9 | Arten | Taxom |
| Sphingidae Latreille, 1802 | Schwärmer | 547 | Arten | Taxom |
| Spiralizoridae Kocarek, Ho..., 2020 | | 5 | Arten | Taxom |
| Spongiphoridae Verhoeff, 1902 | | 51 | Arten | Taxom |
| Spurostigmatidae Casasola Gon..., 2006 | | 24 | Arten | Taxom |
| Staphylinidae Lameere, 1900 | Halbflügler | 7607 | Arten | Taxom |
| Stenopelmatidae Burmeister, 1838 | | 8 | Arten | Taxom |
| Stenopsocidae Pearman, 1936 | | 4 | Arten | Taxom |
| Stenopsychidae Martynov, 1924 | | 4 | Arten | Taxom |
| Stenoviciidae Evans, 1956 | | 1 | Art | Taxom |
| Stephanidae Leach, 1815 | | 25 | Arten | Taxom |
| Stephanocircidae Wagner, 1928 | | 43 | Arten | Taxom |
| Stigmacoccidae Morrison giv..., 2006 | | 2 | Arten | Taxom |
| Stratiomyidae Latreille, 1802 | Waffenfliegen | 739 | Arten | Taxom |
| Streblidae (Kolenati, 1863) | | 44 | Arten | Taxom |
| Strongylophthalmyiidae Hennig, 1940 | | 2 | Arten | Taxom |
| Stylopidae Kirby, 1813 | | 27 | Arten | Taxom |
| Subioblattidae (Schneider, 1983) | | 1 | Art | Taxom |
| Syntomidae (Herrich Scha..., 1846) | Scheinwidderchen | 17 | Arten | Taxom |
| Syringogastridae Prado, 1969 | | 9 | Arten | Taxom |
| Syrphidae Latreille, 1802 | Larven: Blattlaus-Löwen | 1484 | Arten | Taxom |
| Tabanidae Latreille, 1802 | Bremsen | 1185 | Arten | Taxom |
| Tachardiidae Green, 1896 | | 22 | Arten | Taxom |
| Tachinidae (Robineau-Des..., 1830) | Raupenfliegen | 2344 | Arten | Taxom |
| Taeniopterygidae Klapálek, 1905 | | 16 | Arten | Taxom |
| Taiophlebiidae Martins-Neto, 2007 | | 2 | Arten | Taxom |
| Tanaostigmatidae Howard, 1890 | | 29 | Arten | Taxom |
| Tanyderidae Alexander, 1919 | | 4 | Arten | Taxom |
| Tanypezidae Rondani, 1856 | Streckfußfliegen | 16 | Arten | Taxom |
| Tarachodidae Handlirsch, 1930 | | 1 | Art | Taxom |
| Tasimiidae Riek, 1968 | | 1 | Art | Taxom |
| Telegeusidae (LeConte, 1861) | | 3 | Arten | Taxom |
| Tenebrionidae Latreille, 1802 | Dunkelkäfer | 558 | Arten | Taxom |
| Tenthredinidae Latreille, 1804 | Blattwespen | 83 | Arten | Taxom |
| Tephritidae Newman, 1834 | Bohrfliegen | 793 | Arten | Taxom |
| Teratembiidae Krauss, 1911 | | 22 | Arten | Taxom |
| Teratomyzidae Hennig, 1969 | | 3 | Arten | Taxom |
| Teredidae Seidlitz, 1888 | | 1 | Art | Taxom |
| Termitaphididae Myers, 1924 | | 2 | Arten | Taxom |
| Termitidae Latreille, 1802 | Höhere Termiten | 443 | Arten | Taxom |
| Termopsidae Grassé, 1949 | Feuchtholztermiten | 3 | Arten | Taxom |
| Tessaratomidae Stål, 1864 | | 3 | Arten | Taxom |
| Tethinidae (Hendel, 1916) | | 42 | Arten | Taxom |
| Tetracampidae Förster, 1856 | | 1 | Art | Taxom |
| Tetratomidae Billberg, 1820 | Keulendüsterkäfer | 7 | Arten | Taxom |
| Tetrigidae Rambur, 1838 | Dornschrecken | 170 | Arten | Taxom |
| Tettigarctidae Distant, 1905 | | 3 | Arten | Taxom |
| Tettigometridae Germar, 1821 | Ameisenzikaden | 2 | Arten | Taxom |
| Tettigoniidae Krauss, 1902 | Laubheuschrecken | 1656 | Arten | Taxom |
| Thanerocleridae Chapin, 1921 | | 1 | Art | Taxom |
| Thaumaleidae Bezzi, 1913 | Dunkelmücken | 7 | Arten | Taxom |
| Thaumastocoridae Kirkaldy, 1908 | | 6 | Arten | Taxom |
| Therevidae Newman, 1834 | Dolchfliegen | 130 | Arten | Taxom |
| Thericleidae Burr, 1899 | | 2 | Arten | Taxom |
| Thespidae Giglio-Tos, 1919 | | 113 | Arten | Taxom |
| Thripidae Stevens, 1829 | Blasenfüßer | 319 | Arten | Taxom |
| Throscidae Laporte, 1840 | Hüpfkäfer | 25 | Arten | Taxom |
| Thynnidae Shuckard, 1841 | | 21 | Arten | Taxom |
| Thyreocoridae Amyot and Se..., 1843 | | 23 | Arten | Taxom |
| Thyrididae Herrich-Schä..., 1846 | Fensterfleckchen | 41 | Arten | Taxom |
| Timematidae Caudell, 1903 | | 1 | Art | Taxom |
| Tineidae Latreille, 1810 | Echte Motten | 417 | Arten | Taxom |
| Tingidae Laporte, 1832 | Blasenwanzen | 705 | Arten | Taxom |
| Tiphiidae Leach, 1815 | Rollwespen | 62 | Arten | Taxom |
| Tipulidae Latreille, 1802 | Bachmücken | 3322 | Arten | Taxom |
| Tischeriidae Spuler, 1898 | Schopfstirnfalter | 8 | Arten | Taxom |
| Torridincolidae Steffan, 1964 | | 29 | Arten | Taxom |
| Tortricidae Latreille, 1803 | Blattroller | 2296 | Arten | Taxom |
| Torymidae Walker, 1833 | Erzwespen | 59 | Arten | Taxom |
| Trachypachidae C. G. Thomson, 1857 | | 3 | Arten | Taxom |
| Triassoblattidae Durden, 1969 | | 2 | Arten | Taxom |
| Trichoceridae Rondani, 1841 | Wintermücken | 13 | Arten | Taxom |
| Trichodectidae Kellogg, 1896 | | 58 | Arten | Taxom |
| Trichogrammatidae Haliday, 1851 | | 78 | Arten | Taxom |
| Trichopsocidae Pearman, 1936 | | 3 | Arten | Taxom |
| Trictenotomidae Blanchard, 1845 | | 1 | Art | Taxom |
| Tridactylidae Saussure, 1874 | Grabschrecken | 43 | Arten | Taxom |
| Trigonalidae (Cresson, 1887) | Leistenwespen | 0 | Arten | Taxom |
| Trigonidiidae (Saussure, 1870) | | 147 | Arten | Taxom |
| Trimenoponidae Harrison, 1916 | | 21 | Arten | Taxom |
| Triozidae Löw, 1879 | | 95 | Arten | Taxom |
| Tristiridae Rehn, 1906 | | 30 | Arten | Taxom |
| Troctopsocidae Mockford, 1967 | | 5 | Arten | Taxom |
| Trogidae (MacLeay, 1819) | Erdkäfer | 79 | Arten | Taxom |
| Trogiidae Enderlein, 1903 | Staubläuse | 11 | Arten | Taxom |
| Trogossitidae Latreille, 1802 | Flachkäfer | 73 | Arten | Taxom |
| Tropiduchidae Stål, 1866 | Mückenzikaden | 38 | Arten | Taxom |
| Tryonicidae McKittrick &..., 1965 | | 1 | Art | Taxom |
| Ulidiidae Macquart, 1835 | Metallfliegen | 23 | Arten | Taxom |
| Ulopidae (Le Peletier ..., 1825) | | 6 | Arten | Taxom |
| Umenocoleidae Chen & Tian, 1973 | | 5 | Arten | Taxom |
| Undopterigidae (Kozlov, 1988) | | 2 | Arten | Taxom |
| Uraniidae Blanchard, 1845 | Uraniafalter | 73 | Arten | Taxom |
| Urodidae Kyrki, 1984 | | 6 | Arten | Taxom |
| Veliidae Amyot & Serv..., 1843 | Bachläufer | 319 | Arten | Taxom |
| Vermileonidae Williston, 1886 | Wurmlöwen | 1 | Art | Taxom |
| Vesperidae Mulsant, 1839 | | 31 | Arten | Taxom |
| Vespidae Leach, 1815 | Echte Wespen | 890 | Arten | Taxom |
| Xenidae Pohl & Beutel, 2005 | | 25 | Arten | Taxom |
| Xiphocentronidae Schmid, 1982 | | 21 | Arten | Taxom |
| Xiphydriidae Leach, 1819 | Schwertwespen | 5 | Arten | Taxom |
| Xyelidae Newman, 1835 | Urblattwespen | 4 | Arten | Taxom |
| Xylomyidae Verrall, 1901 | Holz-Waffenfliegen | 6 | Arten | Taxom |
| Xylophagidae Fallen, 1810 | Holzfliegen | 10 | Arten | Taxom |
| Xyloryctidae Meyrick, 1890 | | 14 | Arten | Taxom |
| Yponomeutidae Stephens, 1829 | Gespinst- und Knospenmotten | 31 | Arten | Taxom |
| Ypsolophidae Guenée, 1845 | Knospenmotten | 5 | Arten | Taxom |
| Zhangsolvidae Nagatomi & Yang, 1998 | | 3 | Arten | Taxom |
| Zopheridae Solier, 1834 | Rindenkäfer | 119 | Arten | Taxom |
| Zorotypidae Silvestri, 1913 | | 11 | Arten | Taxom |
| Zygaenidae Latreille, 1809 | Blutströpfchen | 45 | Arten | Taxom |
