| Acanaloniidae Amyot and Se..., 1843 | | 14 | Arten | Taxom |
| Acanthocnemidae Crowson, 1964 | | 1 | Art | Taxom |
| Acanthopidae Burmeister, 1838 | | 4 | Arten | Taxom |
| Acanthopteroctetidae Davis, 1978 | | 3 | Arten | Taxom |
| Acanthosomatidae Signoret, 1864 | Bauchkielwanzen | 35 | Arten | Taxom |
| Acartophthalmidae Czerny, 1928 | Augenstoppelfliegen | 5 | Arten | Taxom |
| Achilidae Stål, 1866 | Rindenzikaden | 59 | Arten | Taxom |
| Aclerdidae Ferris, 1937 | | 10 | Arten | Taxom |
| Acmaeoblattidae Durden, 1969 | | 1 | Art | Taxom |
| Acrididae MacLeay, 1819 | Feldheuschrecken | 859 | Arten | Taxom |
| Acroceridae Leach, 1815 | Kugelfliegen | 57 | Arten | Taxom |
| Adelgidae Heinze, 1962 | Fichtengallenläuse | 51 | Arten | Taxom |
| Adelidae Bruand, 1851 | Langfühlermotten | 120 | Arten | Taxom |
| Ademosynidae Ponomarenko, 1968 | | 5 | Arten | Taxom |
| Aderidae Winkler, 1927 | Baummulmkäfer | 59 | Arten | Taxom |
| Aenictopecheidae Usinger, 1932 | | 2 | Arten | Taxom |
| Aeolothripidae Uzel, 1895 | | 59 | Arten | Taxom |
| Aepophilidae Puton, 1879 | | 1 | Art | Taxom |
| Aerophasmidae Martynov, 1928 | | 7 | Arten | Taxom |
| Aeschnidiidae Needham, 1903 | | 32 | Arten | Taxom |
| Aeshnidae Rambur, 1842 | Edellibellen | 164 | Arten | Taxom |
| Aetalionidae Spinola, 1850 | | 3 | Arten | Taxom |
| Agaonidae Walker, 1848 | Feigenwespen | 14 | Arten | Taxom |
| Agromyzidae Fallen, 1823 | Minierfliegen | 2256 | Arten | Taxom |
| Agyrtidae Thomson, 1859 | Scheinaaskäfer | 13 | Arten | Taxom |
| Aididae Schaus, 1906 | | 1 | Art | Taxom |
| Aktassiidae Pritykina, 1968 | | 6 | Arten | Taxom |
| Alavarommatidae Ortega-Blanc..., 2011 | | 1 | Art | Taxom |
| Albiococcidae Koteja, 2004 | | 1 | Art | Taxom |
| Alectoneuridae Kukalova-Peck, 1975 | | 1 | Art | Taxom |
| Alexrasnitsyniidae Prokop & Nel, 2011 | | 1 | Art | Taxom |
| Aleyrodidae Westwood, 1840 | Mottenschildläuse Mottenläuse | 153 | Arten | Taxom |
| Alucitidae Leach, 1815 | Federgeistchen | 46 | Arten | Taxom |
| Alydidae Amyot & Serv..., 1843 | Krummfühlerwanzen | 40 | Arten | Taxom |
| Ambermantidae Grimaldi, 2003 | | 1 | Art | Taxom |
| Ameletidae McCafferty, 1991 | | 2 | Arten | Taxom |
| Ameletopsidae Edmunds, 1957 | | 1 | Art | Taxom |
| Ametropodidae Bengtsson, 1913 | | 3 | Arten | Taxom |
| Amorphoscelidae Stål, 1877 | | 3 | Arten | Taxom |
| Ampelipteridae Haupt, 1941 | | 1 | Art | Taxom |
| Amphientomidae Enderlein, 1903 | | 11 | Arten | Taxom |
| Amphipsocidae Mockford, 1978 | | 4 | Arten | Taxom |
| Amphipterygidae Selys, 1853 | | 0 | Arten | Taxom |
| Amphizoidae LeConte, 1853 | Forellenbachkäfer | 1 | Art | Taxom |
| Ampulicidae Shuckard, 1840 | Schaben-Grabwespen | 30 | Arten | Taxom |
| Anaxyelidae Martynov, 1925 | | 4 | Arten | Taxom |
| Ancopteridae Kukalova-Peck, 1975 | | 1 | Art | Taxom |
| Andrenidae Webster, 1913 | Erdbienen | 1137 | Arten | Taxom |
| Angarosphecidae Rasnitsyn, 1975 | | 3 | Arten | Taxom |
| Anisolabididae Verhoeff, 1902 | | 5 | Arten | Taxom |
| Anisopodidae Knab, 1912 | Fenstermücken | 48 | Arten | Taxom |
| Anostostomatidae Saussure, 1859 | | 9 | Arten | Taxom |
| Anthelidae Turner, 1904 | | 10 | Arten | Taxom |
| Anthicidae Latreille, 1819 | Blumenkäfer | 244 | Arten | Taxom |
| Anthocoridae Fieber, 1837 | Blumenwanzen | 144 | Arten | Taxom |
| Anthomyiidae Robineau-Des..., 1830 | Blumenfliegen | 1168 | Arten | Taxom |
| Anthomyzidae Czerny, 1903 | Einmieterfliegen | 192 | Arten | Taxom |
| Anthophoridae (C. L. Koch, 1846) | Pelzbienen | 3 | Arten | Taxom |
| Anthracoblattinidae Durden, 1969 | | 19 | Arten | Taxom |
| Anthracoptilidae Handlirsch, 1922 | | 10 | Arten | Taxom |
| Anthribidae Billberg, 1820 | Breitrüßler | 178 | Arten | Taxom |
| Apachelytridae Carpenter & ..., 1964 | | 1 | Art | Taxom |
| Apachyidae Verhoeff, 1902 | | 1 | Art | Taxom |
| Apataniidae Wallengren, 1886 | | 89 | Arten | Taxom |
| Apatelodidae Neumoegen & ..., 1894 | | 2 | Arten | Taxom |
| Aphalaridae Löw, 1879 | | 144 | Arten | Taxom |
| Aphelinidae Thomson, 1876 | | 249 | Arten | Taxom |
| Aphelocheiridae Fieber, 1851 | Grundwanzen | 19 | Arten | Taxom |
| Aphididae Latreille, 1802 | Blattläuse | 2253 | Arten | Taxom |
| Aphodiidae Leach, 1815 | Dungkäfer | 1 | Art | Taxom |
| Aphrophoridae Evans, 1946 | Schaumzikaden | 88 | Arten | Taxom |
| Aphylidae Bergroth, 1906 | | 2 | Arten | Taxom |
| Apidae Latreille, 1802 | Bienen | 1703 | Arten | Taxom |
| Apioceridae Bigot, 1852 | | 2 | Arten | Taxom |
| Apsidoneuridae Carpenter, 1961 | | 1 | Art | Taxom |
| Apsilocephalidae Nagatomi & al., 1991 | | 1 | Art | Taxom |
| Apticoccidae Vea & Grimaldi, 2015 | | 3 | Arten | Taxom |
| Aradidae Spinola, 1837 | Rindenwanzen | 116 | Arten | Taxom |
| Araripelibellulidae Bechly, 1996 | | 2 | Arten | Taxom |
| Archaeatropidae Baz & Ortuño, 2000 | | 6 | Arten | Taxom |
| Archaemegaptilidae Handlirsch, 1919 | | 2 | Arten | Taxom |
| Archaemiopteridae Guthorl, 1939 | | 1 | Art | Taxom |
| Archaeolepidae (Whalley, 1985) | | 1 | Art | Taxom |
| Archegocimicidae Handlirsch, 1906 | | 30 | Arten | Taxom |
| Archelytridae Carpenter, 1933 | | 2 | Arten | Taxom |
| Archeocrypticidae Kaszab, 1964 | | 0 | Arten | Taxom |
| Archeorhinotermitidae Krishna & Gr..., 2003 | | 2 | Arten | Taxom |
| Archescytinidae Tillyard, 1926 | | 0 | Arten | Taxom |
| Archiconiopterygidae Ansorge, 1996 | | 1 | Art | Taxom |
| Archijassidae Becker-Migdi..., 1962 | | 8 | Arten | Taxom |
| Archimylacridae Handlirsch, 1906 | | 135 | Arten | Taxom |
| Archipseudophasmatidae Zompro, 2001 | | 3 | Arten | Taxom |
| Archipsocidae Enderlein, 1903 | | 1 | Art | Taxom |
| Archipsyllidae Handlirsch, 1908 | | 2 | Arten | Taxom |
| Archithemistidae Tillyard, 1917 | | 2 | Arten | Taxom |
| Archizelmiridae Rohdendorf, 1962 | | 1 | Art | Taxom |
| Archoblattinidae (Schneider, 1983) | | 4 | Arten | Taxom |
| Arcioneuridae Kukalova-Peck, 1975 | | 2 | Arten | Taxom |
| Arctiidae Leach, 1815 | Bären | 28 | Arten | Taxom |
| Argentinoblattidae Martins-Neto..., 2005 | | 1 | Art | Taxom |
| Argidae Konow, 1890 | Bürstenhornblattwespen | 119 | Arten | Taxom |
| Arnoldidae Koteja, 2008 | | 2 | Arten | Taxom |
| Artematopodidae Lacordaire, 1857 | | 8 | Arten | Taxom |
| Artheneidae Stål, 1872 | | 10 | Arten | Taxom |
| Arthropleidae Balthasar, 1937 | | 3 | Arten | Taxom |
| Ascalaphidae Rambur, 1842 | Schmetterlingshafte | 45 | Arten | Taxom |
| Aschiphasmatidae Brunner von ..., 1893 | | 2 | Arten | Taxom |
| Asilidae Latreille, 1802 | Jagdfliegen | 1211 | Arten | Taxom |
| Asiopsocidae Mockford & G..., 1976 | | 1 | Art | Taxom |
| Asiopteridae Pritykina, 1968 | | 2 | Arten | Taxom |
| Aspidothoracidae Handlirsch, 1919 | | 5 | Arten | Taxom |
| Asteiidae Rondani, 1856 | Feinfliegen | 23 | Arten | Taxom |
| Asterolecaniidae Cockerell, 1896 | Pockenläuse | 42 | Arten | Taxom |
| Asthenohymenidae Tillyard, 1924 | | 0 | Arten | Taxom |
| Atelestidae Hennig, 1970 | Zwergtanzfliegen | 12 | Arten | Taxom |
| Athericidae Stuckenberg, 1973 | Ibisfliegen | 36 | Arten | Taxom |
| Attelabidae Billberg, 1820 | Blattroller | 396 | Arten | Taxom |
| Aulacidae Shuckard, 1842 | | 37 | Arten | Taxom |
| Aulacigastridae Wollaston, 1864 | Baumsaftfliegen | 14 | Arten | Taxom |
| Australiphemeridae McCafferty, 1991 | | 1 | Art | Taxom |
| Austroperlidae Tillyard, 1921 | | 1 | Art | Taxom |
| Autostichidae Le Marchand, 1947 | Zwergpalpenmotten | 174 | Arten | Taxom |
| Aviorrhynchidae Nel & al., 2013 | | 1 | Art | Taxom |
| Avioxyelidae Nel, Engel,..., 2013 | | 1 | Art | Taxom |
| Axymyiidae Rohdendorf, 1946 | | 2 | Arten | Taxom |
| Babidae Kluge, Godun..., 2006 | | 1 | Art | Taxom |
| Bacillidae Brunner von ..., 1893 | | 10 | Arten | Taxom |
| Baetidae Leach, 1815 | Glashafte | 170 | Arten | Taxom |
| Baissidae Rasnitsyn, 1975 | | 1 | Art | Taxom |
| Baissodidae Benton, 1993 | | 0 | Arten | Taxom |
| Baissogryllidae Gorochov, 1985 | | 11 | Arten | Taxom |
| Baissopteridae Martynova, 1961 | | 1 | Art | Taxom |
| Bardohymenidae Zalessky, 1937 | | 2 | Arten | Taxom |
| Baryshnyalidae Ilger & Brau..., 2011 | | 1 | Art | Taxom |
| Batrachedridae Heinemann & ..., 1876 | | 19 | Arten | Taxom |
| Bechalidae Ilger & Brau..., 2012 | | 1 | Art | Taxom |
| Bechlyidae Jarzembowski..., 2002 | | 1 | Art | Taxom |
| Bedelliidae (Stainton, 1849) | | 1 | Art | Taxom |
| Beesoniidae Ferris, 1950 | | 1 | Art | Taxom |
| Behningiidae Motas & Bacesco, 1937 | | 1 | Art | Taxom |
| Belidae Schönherr, 1826 | | 18 | Arten | Taxom |
| Belostomatidae Leach, 1815 | Riesenwanzen | 35 | Arten | Taxom |
| Beraeidae Wallengren, 1891 | | 56 | Arten | Taxom |
| Berendtimiridae Winkler, 1987 | | 1 | Art | Taxom |
| Berothidae Handlirsch, 1906 | | 8 | Arten | Taxom |
| Berytidae Fieber, 1851 | Keulenwanzen | 57 | Arten | Taxom |
| Bethylidae Halliday, 1839 | Plattwespen | 306 | Arten | Taxom |
| Bethylonymidae Rasnitsyn, 1975 | | 3 | Arten | Taxom |
| Bibionidae Fleming, 1821 | Haarmücken | 461 | Arten | Taxom |
| Bintoniellidae Handlirsch, 1937 | | 3 | Arten | Taxom |
| Biphyllidae LeConte, 1861 | Buchenpilzkäfer | 5 | Arten | Taxom |
| Bittacidae Handlirsch, 1906 | Mückenhafte | 58 | Arten | Taxom |
| Blaberidae Saussure, 1864 | | 76 | Arten | Taxom |
| Blasticotomidae Thomson, 1871 | | 2 | Arten | Taxom |
| Blastobasidae (Meyrick, 1894) | | 0 | Arten | Taxom |
| Blattellidae (Karny, 1908) | Kleinschaben | 79 | Arten | Taxom |
| Blattidae Stephens, 1829 | Schaben | 94 | Arten | Taxom |
| Blattinopsidae Bolton, 1925 | | 38 | Arten | Taxom |
| Blattocoleidae Zeuner, 1933 | | 1 | Art | Taxom |
| Blattogryllidae Rasnitsyn, 1976 | | 5 | Arten | Taxom |
| Blattulidae Vishnyokova, 1982 | | 23 | Arten | Taxom |
| Blephariceridae Loew, 1861 | Lidmücken | 42 | Arten | Taxom |
| Blissidae Stål, 1862 | Schmalwanzen | 17 | Arten | Taxom |
| Bojophlebiidae Kukalova-Peck, 1985 | | 1 | Art | Taxom |
| Bolboceratidae (Mulsant, 1842) | | 1 | Art | Taxom |
| Bolcacorduliidae Gentilini, 2002 | | 1 | Art | Taxom |
| Bolcathoridae Gentilini, 2002 | | 1 | Art | Taxom |
| Boleopsidae Kirejtshuk &..., 2013 | | 1 | Art | Taxom |
| Bolitophilidae Malloch, 1917 | | 5 | Arten | Taxom |
| Bombycidae Latreille, 1802 | Echte Spinner | 36 | Arten | Taxom |
| Bombyliidae Latreille, 1802 | Hummelfliegen | 689 | Arten | Taxom |
| Boopiidae Mjöberg, 1910 | | 2 | Arten | Taxom |
| Boreidae Latreille, 1816 | Winterhafte | 21 | Arten | Taxom |
| Boridae C. G. Thomson, 1859 | Urkäfer | 4 | Arten | Taxom |
| Bostrichidae Latreille, 1802 | Bohrkäfer | 201 | Arten | Taxom |
| Bothrideridae Erichson, 1845 | Blindkäfer | 10 | Arten | Taxom |
| Brachodidae Agenjo, 1966 | | 20 | Arten | Taxom |
| Brachycentridae Ulmer, 1903 | | 18 | Arten | Taxom |
| Brachyceridae (Billberg, 1820) | | 19 | Arten | Taxom |
| Brachycleistogastridae (Kovalev, 1994) | | 4 | Arten | Taxom |
| Brachypteridae (Erichson, 1845) | | 46 | Arten | Taxom |
| Brachystomatidae Melander, 1908 | | 5 | Arten | Taxom |
| Braconidae Latreille, 1829 | Brackwespen | 5539 | Arten | Taxom |
| Bradyblattidae Durden, 1969 | | 29 | Arten | Taxom |
| Bradynobaenidae Saussure, 1892 | | 6 | Arten | Taxom |
| Bradyporidae (Burmeister, 1838) | Sattelschrecken | 4 | Arten | Taxom |
| Brahmaeidae Swinhoe, 1892 | Brahmaspinner | 3 | Arten | Taxom |
| Braulidae Egger, 1853 | Bienenläuse | 5 | Arten | Taxom |
| Brentidae Billberg, 1820 | Langkäfer | 648 | Arten | Taxom |
| Breyeriidae Handlirsch, 1906 | | 7 | Arten | Taxom |
| Brodiidae Handlirsch, 1906 | | 4 | Arten | Taxom |
| Brodiopteridae Carpenter, 1963 | | 1 | Art | Taxom |
| Brongniartiellidae Martynova, 1949 | | 4 | Arten | Taxom |
| Buprestidae Leach, 1815 | Prachtkäfer | 1072 | Arten | Taxom |
| Byrrhidae Latreille, 1804 | Pillenkäfer | 153 | Arten | Taxom |
| Byturidae Jacquelin du..., 1858 | Blütenfresser | 6 | Arten | Taxom |
| Cacurgidae Handlirsch, 1911 | | 1 | Art | Taxom |
| Caeciliusidae Kolbe, 1880 | | 69 | Arten | Taxom |
| Caenidae Newman, 1853 | | 30 | Arten | Taxom |
| Calamoceratidae Ulmer, 1905 | | 13 | Arten | Taxom |
| Caliscelidae Amyot & Serv..., 1843 | Walzenzikaden | 30 | Arten | Taxom |
| Callaphididae (Borner, 1952) | Zierläuse | 15 | Arten | Taxom |
| Callidulidae Moore, 1877 | | 0 | Arten | Taxom |
| Callipappidae Koteja, 1996 | | 2 | Arten | Taxom |
| Calliphoridae Brauer & Ber..., 1889 | Schmeißfliegen | 629 | Arten | Taxom |
| Callirhipidae Emden, 1924 | | 4 | Arten | Taxom |
| Caloblattinidae Vršanský & A..., 2000 | | 2 | Arten | Taxom |
| Calocidae Ross, 1967 | | 2 | Arten | Taxom |
| Caloneuridae Handlirsch, 1906 | | 11 | Arten | Taxom |
| Calophyidae Vondracek, 1957 | | 7 | Arten | Taxom |
| Calopterygidae Selys, 1850 | Prachtlibellen | 27 | Arten | Taxom |
| Calvertiellidae Martynov, 1931 | | 3 | Arten | Taxom |
| Camillidae Frey, 1921 | Nagetierfliegen | 14 | Arten | Taxom |
| Campterophlebiidae Handlirsch, 1920 | | 7 | Arten | Taxom |
| Camptoneuritidae Martynov, 1930 | | 1 | Art | Taxom |
| Campylopteridae Handlirsch, 1906 | | 1 | Art | Taxom |
| Canaceidae (Jones, 1906) | | 5 | Arten | Taxom |
| Canacidae Jones, 1906 | Dünenfliegen | 1 | Art | Taxom |
| Canadaphididae Richards, 1966 | | 1 | Art | Taxom |
| Cantacaderidae (Stal, 1873) | | 1 | Art | Taxom |
| Cantharidae Imhoff, 1856 | Franzosen | 711 | Arten | Taxom |
| Canthyloscelidae Enderlein, 1912 | | 8 | Arten | Taxom |
| Capniidae Klapálek, 1905 | | 151 | Arten | Taxom |
| Capsidae (Hunt, 1979) | | 1 | Art | Taxom |
| Carabidae Latreille, 1802 | Laufkäfer | 7793 | Arten | Taxom |
| Carcinophoridae Hincks, 1954 | | 12 | Arten | Taxom |
| Caridae Thompson, 1992 | | 12 | Arten | Taxom |
| Carnidae Newman, 1834 | Gefiederfliegen | 68 | Arten | Taxom |
| Carposinidae Walsingham, 1907 | Fruchtwickler | 20 | Arten | Taxom |
| Carsidaridae Crawford, 1911 | | 4 | Arten | Taxom |
| Castniidae Boisduval, 1828 | | 6 | Arten | Taxom |
| Caulopteridae Kukalova-Peck, 1975 | | 1 | Art | Taxom |
| Cecidomyiidae Newman, 1834 | Gallmücken | 3091 | Arten | Taxom |
| Cecidosidae Brèthes, 1916 | | 1 | Art | Taxom |
| Cephidae Newman, 1834 | Halmwespen | 86 | Arten | Taxom |
| Cerambycidae Latreille, 1802 | Böcke | 1801 | Arten | Taxom |
| Ceraphronidae Haliday, 1833 | | 116 | Arten | Taxom |
| Ceratocombidae Fieber, 1861 | | 9 | Arten | Taxom |
| Ceratophyllidae Dampf, 1908 | | 107 | Arten | Taxom |
| Ceratopogonidae Newman, 1834 | Gnitzen | 1647 | Arten | Taxom |
| Cercopidae Leach, 1815 | Blutzikaden | 200 | Arten | Taxom |
| Cerococcidae Balachowsky, 1942 | | 15 | Arten | Taxom |
| Cerophytidae Latreille, 1834 | Dornhalskäfer | 1 | Art | Taxom |
| Cerylonidae Billberg, 1820 | Glattrindenkäfer | 29 | Arten | Taxom |
| Chaeteessidae Handlirsch, 1920 | | 1 | Art | Taxom |
| Chalcididae Latreille, 1817 | Erzwespen | 138 | Arten | Taxom |
| Chamaemyiidae Hendel, 1910 | Blattlausfliegen | 177 | Arten | Taxom |
| Chaoboridae Newman, 1834 | Büschelmücken | 59 | Arten | Taxom |
| Charipidae | | 0 | Arten | Taxom |
| Chathamiidae Tillyard, 1925 | | 1 | Art | Taxom |
| Chelisochidae Burr, 1907 | | 2 | Arten | Taxom |
| Chelonariidae Blanchard, 1845 | | 1 | Art | Taxom |
| Chimabachidae (HEINEMANN, 1870) | Laubholzmotten | 3 | Arten | Taxom |
| Chimaeropsyllidae Ewing & Fox, 1943 | | 1 | Art | Taxom |
| Chimeromyiidae Grimaldi & C..., 2009 | | 2 | Arten | Taxom |
| Chironomidae Erichson, 1842 | Schwarmmücken | 5341 | Arten | Taxom |
| Chlorocyphidae Cowley, 1937 | | 7 | Arten | Taxom |
| Chlorogomphidae Needham, 1903 | | 1 | Art | Taxom |
| Chlorolestidae (Fraser, 1960) | | 4 | Arten | Taxom |
| Chloroperlidae Okamoto, 1912 | | 105 | Arten | Taxom |
| Chloropidae Schoenherr, 1840 | Halmfliegen | 778 | Arten | Taxom |
| Choreutidae Stainton, 1854 | Rundstirnmotten | 39 | Arten | Taxom |
| Chresmodidae Haase, 1890 | | 4 | Arten | Taxom |
| Chrysididae Latreille, 1802 | Goldwespen | 613 | Arten | Taxom |
| Chrysomelidae Latreille, 1802 | Blattkäfer | 2510 | Arten | Taxom |
| Chrysopidae Schneider, 1851 | Florfliegen | 180 | Arten | Taxom |
| Chyromyidae Hendel, 1916 | Gelbfliegen | 51 | Arten | Taxom |
| Cicadellidae Latreille, 1802 | Kleinzikaden | 2288 | Arten | Taxom |
| Cicadidae Westwood, 1840 | Singzikaden | 409 | Arten | Taxom |
| Ciidae Leach, 1819 | Baumschwammfresser | 131 | Arten | Taxom |
| Cimbicidae Kirby, 1837 | Keulenhornblattwespen | 99 | Arten | Taxom |
| Cimbrophlebiidae Willmann, 1977 | | 3 | Arten | Taxom |
| Cimicidae Latreille, 1802 | Bettwanzen | 29 | Arten | Taxom |
| Cixiidae Spinola, 1839 | Glasflügelzikaden | 371 | Arten | Taxom |
| Clambidae Fischer, 1821 | Punktkäfer | 30 | Arten | Taxom |
| Clastopteridae Stål, 1858 | | 6 | Arten | Taxom |
| Cleridae Latreille, 1802 | Buntkäfer | 126 | Arten | Taxom |
| Clusiidae Schönherr, 1840 | Druidenfliegen | 73 | Arten | Taxom |
| Cnemidolestidae Handlirsch, 1906 | | 4 | Arten | Taxom |
| Coccidae Stephens, 1829 | Napfschildläuse | 287 | Arten | Taxom |
| Coccinellidae Latreille, 1807 | Glückskäfer | 453 | Arten | Taxom |
| Cochylidae | | 1 | Art | Taxom |
| Coelopidae Hendel, 1910 | Tangfliegen | 6 | Arten | Taxom |
| Coenagrionidae Kirby, 1890 | Schlankjungfern | 150 | Arten | Taxom |
| Coleophoridae Hübner, 1825 | Futteralmotten | 1026 | Arten | Taxom |
| Coleopsidae Kirejtshuk &..., 2016 | | 1 | Art | Taxom |
| Colletidae Lepeletier, 1841 | Kropfbienen | 434 | Arten | Taxom |
| Colobathristidae Stål, 1866 | | 1 | Art | Taxom |
| Coloburiscidae Edmunds, 1963 | | 1 | Art | Taxom |
| Colymbotethidae Ponomarenko, 1993 | | 1 | Art | Taxom |
| Conchaspididae Green, 1896 | | 2 | Arten | Taxom |
| Coniopterygidae Burmeister, 1839 | Staubhafte | 99 | Arten | Taxom |
| Conoesucidae Ross, 1967 | | 7 | Arten | Taxom |
| Conopidae Latreille, 1802 | Blasenkopffliegen | 168 | Arten | Taxom |
| Copromorphidae Meyrick, 1905 | | 2 | Arten | Taxom |
| Coptoclavidae Ponomarenko, 1961 | Ausgestorbene Familie | 17 | Arten | Taxom |
| Coptopsyllidae Wagner, 1928 | | 2 | Arten | Taxom |
| Cordulegasteridae | | 3 | Arten | Taxom |
| Cordulegastridae Calvert, 1893 | Quelljungfern | 15 | Arten | Taxom |
| Corduliidae Selys-Longch..., 1850 | Falkenlibellen | 70 | Arten | Taxom |
| Coreidae Leach, 1815 | Lederwanzen | 208 | Arten | Taxom |
| Corioxenidae Kinzelbach, 1970 | | 5 | Arten | Taxom |
| Corixidae Leach, 1815 | Ruderwanzen | 210 | Arten | Taxom |
| Corydalidae Burmeister, 1839 | | 15 | Arten | Taxom |
| Corydaloididae Handlirsch, 1906 | | 1 | Art | Taxom |
| Corydiidae de Saussure, 1864 | Sandschaben | 53 | Arten | Taxom |
| Corylophidae LeConte, 1852 | Faulholzkäfer | 83 | Arten | Taxom |
| Cosmopterigidae Heinemann & ..., 1876 | Prachtfalter | 173 | Arten | Taxom |
| Cossidae Leach, 1815 | Bohrer | 129 | Arten | Taxom |
| Crabronidae Latreille, 1802 | Grabwespen | 2252 | Arten | Taxom |
| Crambidae Latreille, 1810 | Graszünsler | 1458 | Arten | Taxom |
| Cratovitismidae Bechly, 2007 | | 2 | Arten | Taxom |
| Creaphididae Shcherbakov ..., 1991 | | 1 | Art | Taxom |
| Cretacoenagrionidae Bechly, 1996 | | 1 | Art | Taxom |
| Cretapetaluridae Bechly, 1996 | | 1 | Art | Taxom |
| Crowsoniellidae Iablokoff-Kh..., 1983 | | 1 | Art | Taxom |
| Cryptocercidae Handlirsch, 1925 | | 2 | Arten | Taxom |
| Cryptochetidae Brues & Mela..., 1932 | | 6 | Arten | Taxom |
| Cryptococcidae | | 15 | Arten | Taxom |
| Cryptophagidae Kirby, 1937 | Schimmelkäfer | 398 | Arten | Taxom |
| Cryptoveniidae Bolton, 1912 | | 1 | Art | Taxom |
| Ctenophthalmidae Rothschild, 1915 | | 144 | Arten | Taxom |
| Ctenuchidae (W. Kirby, 1837) | Widderbären | 7 | Arten | Taxom |
| Cucujidae Latreille, 1802 | Plattkäfer | 87 | Arten | Taxom |
| Culicidae Meigen, 1818 | Stechmücken | 724 | Arten | Taxom |
| Cupedidae Laporte, 1836 | | 57 | Arten | Taxom |
| Curculionidae Latreille, 1802 | Rüsselkäfer | 10122 | Arten | Taxom |
| Curtonotidae Duda, 1934 | | 2 | Arten | Taxom |
| Cydnidae Billberg, 1820 | Erdwanzen | 179 | Arten | Taxom |
| Cylindrotomidae (Mulsant, 1842) | Moosmücken | 4 | Arten | Taxom |
| Cymatophlebiidae Handlirsch, 1906 | | 12 | Arten | Taxom |
| Cymbopsidae Kukalová, 1965 | | 1 | Art | Taxom |
| Cymenophlebiidae Pruvost, 1919 | | 1 | Art | Taxom |
| Cymidae Baerensprung, 1860 | | 12 | Arten | Taxom |
| Cynipidae Latreille, 1802 | Echte Gallwespen | 651 | Arten | Taxom |
| Cypselosomatidae Hennig, 1958 | | 1 | Art | Taxom |
| Dactylopiidae Signoret, 1875 | | 2 | Arten | Taxom |
| Dalceridae Dyar, 1898 | | 1 | Art | Taxom |
| Dascillidae Guérin-Ménev..., 1843 | Moorweichkäfer | 5 | Arten | Taxom |
| Dasydemellidae | | 1 | Art | Taxom |
| Decliniidae Nikitsky, La..., 1994 | | 1 | Art | Taxom |
| Delphacidae Leach, 1815 | Spornzikaden | 715 | Arten | Taxom |
| Depressariidae Meyrick, 1883 | Flachleibmotten | 1 | Art | Taxom |
| Derbidae Spinola, 1839 | | 77 | Arten | Taxom |
| Dericorythidae Jacobson & B..., 1902 | | 7 | Arten | Taxom |
| Dermestidae Hope, 1840 | Pelzkäfer | 284 | Arten | Taxom |
| Derodontidae LeConte, 1861 | Knopfkäfer | 7 | Arten | Taxom |
| Diamphipnoidae Ricker, 1950 | | 1 | Art | Taxom |
| Diapheromeridae Rehn & Hebard, 1909 | | 24 | Arten | Taxom |
| Diapriidae Latreille, 1796 | | 902 | Arten | Taxom |
| Diaspididae Maskell, 1878 | Austernschildläuse | 355 | Arten | Taxom |
| Diastatidae Hendel, 1917 | Laubstreufliegen | 25 | Arten | Taxom |
| Dictyoneurellidae Kukalova-Peck, 1975 | | 1 | Art | Taxom |
| Dictyoneuridae Handlirsch, 1906 | | 48 | Arten | Taxom |
| Dictyopharidae Spinola, 1839 | Laternenträger | 100 | Arten | Taxom |
| Diechoblattinidae Handlirsch, 1906 | | 3 | Arten | Taxom |
| Dilaridae Newman, 1853 | | 21 | Arten | Taxom |
| Dinidoridae Stål, 1867 | | 9 | Arten | Taxom |
| Diopsidae Billberg, 1820 | Stielaugenfliegen | 5 | Arten | Taxom |
| Diprionidae Rohwer, 1911 | Buschhornblattwespen | 33 | Arten | Taxom |
| Dipseudopsidae Ulmer, 1904 | | 10 | Arten | Taxom |
| Dipsocoridae Dohrn, 1859 | | 22 | Arten | Taxom |
| Dipteromantispidae Makarkin & al., 2013 | | 2 | Arten | Taxom |
| Discolomatidae Horn, 1878 | | 2 | Arten | Taxom |
| Ditomyiidae Keilin, 1919 | | 5 | Arten | Taxom |
| Dixidae Schiner, 1868 | Doppeladermücken | 95 | Arten | Taxom |
| Dolichopodidae Latreille, 1809 | Langbeinfliegen | 1644 | Arten | Taxom |
| Doubraviidae Aristov, 2015 | | 1 | Art | Taxom |
| Douglasiidae Heinemann & ..., 1876 | Wippflügelfalter | 28 | Arten | Taxom |
| Drepanidae Meyrick, 1895 | Eulenspinner | 53 | Arten | Taxom |
| Drepanosiphidae (Herrich-Scha..., 1857) | | 5 | Arten | Taxom |
| Drosophilidae Rondani, 1856 | Essigfliegen | 393 | Arten | Taxom |
| Dryinidae Haliday, 1840 | Zikadenwespen | 172 | Arten | Taxom |
| Dryomyzidae Schiner, 1862 | Baumfliegen | 28 | Arten | Taxom |
| Dryophthoridae (Schönherr, 1825) | | 1 | Art | Taxom |
| Dryopidae Billberg, 1820 | Hakenkäfer | 41 | Arten | Taxom |
| Dunstaniidae Tillyard, 1916 | | 1 | Art | Taxom |
| Dysmorphoptilidae Handlirsch, 1906 | | 1 | Art | Taxom |
| Dysoneuridae Sukatsheva, 1968 | | 1 | Art | Taxom |
| Dytiscidae Leach, 1815 | Echte Schwimmkäfer | 1041 | Arten | Taxom |
| Eadiidae Vršanský, 2009 | | 1 | Art | Taxom |
| Ebboidae Perrichot, N..., 2006 | | 1 | Art | Taxom |
| Echinophthiriidae Enderlein, 1904 | | 5 | Arten | Taxom |
| Ecnomidae Ulmer, 1903 | | 35 | Arten | Taxom |
| Ectobiidae (Brunner von ..., 1865) | Waldschaben | 216 | Arten | Taxom |
| Ectopsocidae | | 31 | Arten | Taxom |
| Elachistidae Bruand, 1851 | Grasminierfalter | 815 | Arten | Taxom |
| Elateridae Leach, 1815 | Larven: Echte Drahtwürmer | 1473 | Arten | Taxom |
| Elcanidae Handlirsch, 1906 | | 99 | Arten | Taxom |
| Electrentomidae Enderlein, 1911 | | 4 | Arten | Taxom |
| Electrococcidae Koteja, 2000 | | 2 | Arten | Taxom |
| Elektraphididae Steffan, 1968 | | 10 | Arten | Taxom |
| Elenchidae Perkins, 1905 | | 2 | Arten | Taxom |
| Elipsocidae Pearman, 1936 | | 51 | Arten | Taxom |
| Elliidae Krzeminska, ..., 1993 | | 1 | Art | Taxom |
| Ellinaphididae Kania & Wegi..., 2008 | | 1 | Art | Taxom |
| Elmidae Curtis, 1830 | Hakenkäfer | 150 | Arten | Taxom |
| Elmoboriidae Carpenter, 1977 | | 1 | Art | Taxom |
| Elmoidae Tillyard, 1937 | | 1 | Art | Taxom |
| Embiidae Burmeister, 1839 | | 13 | Arten | Taxom |
| Embolemidae Förster, 1856 | Widderkopfwespen | 9 | Arten | Taxom |
| Empheriidae Enderlein, 1906 | | 6 | Arten | Taxom |
| Emphylopteridae Handlirsch, 1922 | | 1 | Art | Taxom |
| Empididae Latreille, 1809 | Tanzfliegen | 1278 | Arten | Taxom |
| Empusidae Burmeister, 1838 | | 2 | Arten | Taxom |
| Encyrtidae Walker, 1837 | | 981 | Arten | Taxom |
| Enderleinellidae Ewing, 1929 | | 12 | Arten | Taxom |
| Endomychidae Leach, 1815 | Stäublingskäfer | 80 | Arten | Taxom |
| Endromidae Boisduval, 1828 | Birkenspinner | 1 | Art | Taxom |
| Eneopteridae (Saussure, 1893) | | 2 | Arten | Taxom |
| Engisopteridae Kukalova-Peck, 1975 | | 1 | Art | Taxom |
| Englathaumatidae Novokshonov ..., 2016 | | 2 | Arten | Taxom |
| Enicocephalidae Stål, 1860 | | 16 | Arten | Taxom |
| Enigmaeshnidae Nel, Neraude..., 2008 | | 1 | Art | Taxom |
| Eoblattidae Handlirsch, 1906 | | 1 | Art | Taxom |
| Eoditomyiidae Ansorge, 1996 | | 1 | Art | Taxom |
| Eoichneumonidae (Jell & Duncan, 1986) | | 1 | Art | Taxom |
| Eolepidopterigidae Rasnitsyn, 1983 | | 0 | Arten | Taxom |
| Eomeropidae Cockerell, 1909 | | 1 | Art | Taxom |
| Eosagrionidae Handlirsch, 1934 | | 1 | Art | Taxom |
| Eoscarterellidae Evans, 1956 | | 1 | Art | Taxom |
| Epallagidae Needham, 1903 | | 6 | Arten | Taxom |
| Epermeniidae Spuler, 1910 | Zahnflügelfalter | 111 | Arten | Taxom |
| Ephemerellidae (Klapálek, 1909) | | 37 | Arten | Taxom |
| Ephemeridae Leach, 1817 | Eintagsfliegen | 22 | Arten | Taxom |
| Ephialtitidae Handlirsch, 1906 | | 10 | Arten | Taxom |
| Ephydridae Zetterstedt, 1837 | Salzfliegen | 700 | Arten | Taxom |
| Epideigmatidae Handlirsch, 1911 | | 7 | Arten | Taxom |
| Epigambriidae Handlirsch, 1939 | | 1 | Art | Taxom |
| Epipsocidae | | 4 | Arten | Taxom |
| Epipygidae Hamilton, 2001 | | 0 | Arten | Taxom |
| Epipyropidae Dyar, 1903 | | 3 | Arten | Taxom |
| Episactidae Burr, 1899 | | 2 | Arten | Taxom |
| Erasipteridae Carpenter, 1939 | | 7 | Arten | Taxom |
| Erebidae Leach, 1815 | | 1725 | Arten | Taxom |
| Eremochaetidae Ussatchov, 1968 | | 1 | Art | Taxom |
| Eriococcidae Cockerell, 1899 | Wollschildläuse | 310 | Arten | Taxom |
| Eriocottidae Spuler, 1898 | | 16 | Arten | Taxom |
| Eriocraniidae Rebel, 1901 | Trugfalter | 31 | Arten | Taxom |
| Eriosomatidae | | 1 | Art | Taxom |
| Erotylidae Latreille, 1802 | Faulholzkäfer | 62 | Arten | Taxom |
| Eucaenidae Handlirsch, 1906 | | 0 | Arten | Taxom |
| Eucharitidae Latreille, 1809 | | 22 | Arten | Taxom |
| Eucinetidae Lacordaire, 1857 | Purzelkäfer | 16 | Arten | Taxom |
| Eucnemidae Eschscholtz, 1829 | Kammkäfer | 94 | Arten | Taxom |
| Eucoilidae (Thomson, 1862) | | 8 | Arten | Taxom |
| Eugereonidae Handlirsch, 1906 | | 5 | Arten | Taxom |
| Eulichadidae Crowson, 1973 | | 2 | Arten | Taxom |
| Eulophidae Westwood, 1829 | Erzwespen | 1467 | Arten | Taxom |
| Eumastacidae Burr, 1898 | | 7 | Arten | Taxom |
| Eumorbaeschnidae Bechly, 1996 | | 2 | Arten | Taxom |
| Eupelmidae Walker, 1833 | | 146 | Arten | Taxom |
| Euphaeidae Jacobson & B..., 1905 | Orientjungfern | 8 | Arten | Taxom |
| Eupterotidae Swinhoe, 1892 | | 10 | Arten | Taxom |
| Euremiscidae Zalesskii, 1951 | | 1 | Art | Taxom |
| Eurybrachidae Stål, 1862 | | 4 | Arten | Taxom |
| Euryptilonidae Martynov, 1940 | | 16 | Arten | Taxom |
| Eurytomidae Walker, 1832 | | 422 | Arten | Taxom |
| Eustheniidae Tillyard, 1921 | | 3 | Arten | Taxom |
| Euteliidae Grote, 1882 | | 17 | Arten | Taxom |
| Euthyplociidae Lestage, 1921 | | 0 | Arten | Taxom |
| Evaniidae Latreille, 1802 | Hungerwespen | 47 | Arten | Taxom |
| Fanniidae Schnabl & Dz..., 1911 | | 131 | Arten | Taxom |
| Figitidae Thomson, 1862 | | 595 | Arten | Taxom |
| Flatidae Spinola, 1839 | Schmetterlingszikaden | 91 | Arten | Taxom |
| Forficulidae Stephens, 1829 | Eigentliche Ohrwürmer | 77 | Arten | Taxom |
| Foririidae Handlirsch, 1919 | | 1 | Art | Taxom |
| Formicidae Latreille, 1809 | Ameisen | 2638 | Arten | Taxom |
| Fouqueidae Handlirsch, 1906 | | 5 | Arten | Taxom |
| Fulgoridae Latreille, 1807 | Leuchtzirpen | 65 | Arten | Taxom |
| Fulgoridiidae Handlirsch, 1939 | | 141 | Arten | Taxom |
| Fulgorinidae Durden, 1969 | | 2 | Arten | Taxom |
| Fungivoritidae Rohdendorf, 1957 | | 1 | Art | Taxom |
| Galacticidae Minet, 1986 | | 0 | Arten | Taxom |
| Gallophasmatidae Nel & al., 2010 | | 1 | Art | Taxom |
| Gallophlebiidae Nel & al., 2015 | | 1 | Art | Taxom |
| Gasteruptiidae Ashmead, 1900 | Gichtwespen | 41 | Arten | Taxom |
| Gelastocoridae Kirkaldy, 1897 | | 4 | Arten | Taxom |
| Gelechiidae Stainton, 1854 | Palpenfalter | 1627 | Arten | Taxom |
| Genaphididae Handlirsch, 1907 | | 4 | Arten | Taxom |
| Geocoridae Baerensprung, 1860 | | 38 | Arten | Taxom |
| Geometridae Leach, 1815 | Spanner | 3003 | Arten | Taxom |
| Geotrupidae Latreille, 1802 | Blatthornkäfer | 170 | Arten | Taxom |
| Gerapompidae Handlirsch, 1906 | | 2 | Arten | Taxom |
| Geraridae Scudder, 1885 | | 13 | Arten | Taxom |
| Gerridae Leach, 1815 | Schneider | 71 | Arten | Taxom |
| Glaphyridae MacLeay, 1819 | | 36 | Arten | Taxom |
| Glaphyropteridae Pongracz, 1935 | | 22 | Arten | Taxom |
| Glaresidae Kolbe, 1905 | | 7 | Arten | Taxom |
| Glossinidae Theobald, 1903 | Tsetsefliegen | 6 | Arten | Taxom |
| Glossosomatidae Wallengren, 1891 | | 149 | Arten | Taxom |
| Glyphipterigidae Stainton, 1854 | Halbmotten | 76 | Arten | Taxom |
| Goeridae Ulmer, 1903 | | 29 | Arten | Taxom |
| Gomphaeschnidae Tillyard & F..., 1940 | | 6 | Arten | Taxom |
| Gomphidae Rambur, 1842 | Flußjungfern | 98 | Arten | Taxom |
| Gracillariidae Stainton, 1854 | Blatttütenfalter | 611 | Arten | Taxom |
| Graphiptilidae Handlirsch, 1906 | | 4 | Arten | Taxom |
| Grauvogeliidae Krzeminski, 1994 | | 6 | Arten | Taxom |
| Grimaldiellidae Koteja, 2000 | | 2 | Arten | Taxom |
| Gripopterygidae Enderlein, 1909 | | 33 | Arten | Taxom |
| Grohnidae Koteja, 2008 | | 1 | Art | Taxom |
| Gryllacrididae Blanchard, 1845 | | 26 | Arten | Taxom |
| Gryllavidae Gorochov, 1986 | | 1 | Art | Taxom |
| Gryllidae Bolivar, 1878 | Grillen | 181 | Arten | Taxom |
| Grylloblattidae E. M. Walker, 1914 | Grillenschaben | 4 | Arten | Taxom |
| Gryllotalpidae Saussure, 1870 | Maulwurfsgrillen | 31 | Arten | Taxom |
| Gulouidae (Béthoux, Cui..., 2011) | | 0 | Arten | Taxom |
| Gyrinidae Latreille, 1802 | Drehkäfer | 84 | Arten | Taxom |
| Gyroblattidae Durden, 1969 | | 1 | Art | Taxom |
| Gyropidae Kellogg, 1896 | | 4 | Arten | Taxom |
| Hadentomidae Handlirsch, 1906 | | 1 | Art | Taxom |
| Hadrocoridae Handlirsch, 1920 | | 1 | Art | Taxom |
| Haematopinidae Enderlein, 1904 | Tierläuse | 11 | Arten | Taxom |
| Haglidae Handlirsch, 1906 | | 9 | Arten | Taxom |
| Hagloedischiidae Gorochov, 1986 | | 1 | Art | Taxom |
| Haglotettigoniidae Gorochov, 1988 | | 1 | Art | Taxom |
| Halictidae Thomson, 1869 | Schmalbienen und Furchenbienen | 1205 | Arten | Taxom |
| Halictophagidae Perkins, 1905 | | 14 | Arten | Taxom |
| Halimococcidae Brown & McKe..., 1962 | | 1 | Art | Taxom |
| Haliplidae Aubé, 1836 | Wassertreter | 78 | Arten | Taxom |
| Hammanococcidae Koteja & Azar, 2008 | | 1 | Art | Taxom |
| Hanidae Kukalova-Peck, 1975 | | 3 | Arten | Taxom |
| Hapalopteridae Handlirsch, 1906 | | 11 | Arten | Taxom |
| Havlatiidae Kukalová, 1964 | | 2 | Arten | Taxom |
| Hebridae Amyot and Se..., 1843 | Uferläufer | 21 | Arten | Taxom |
| Helcomyzidae Malloch, 1933 | Strandfliegen | 1 | Art | Taxom |
| Heleomyzidae (Westwood, 1840) | Dunkelfliegen | 347 | Arten | Taxom |
| Helicophidae Mosely, 1953 | | 1 | Art | Taxom |
| Helicopsychidae Ulmer, 1912 | | 30 | Arten | Taxom |
| Heliodinidae Heinemann & ..., 1876 | Sonnenmotten | 5 | Arten | Taxom |
| Heliozelidae Heinemann & ..., 1876 | Erzglanzfalter | 40 | Arten | Taxom |
| Helophoridae (Leach, 1815) | | 1 | Art | Taxom |
| Heloridae Förster, 1856 | Florfliegenwespen | 6 | Arten | Taxom |
| Helosciomyzidae Griffiths, 1972 | | 3 | Arten | Taxom |
| Helotrephidae Esaki & China, 1927 | | 2 | Arten | Taxom |
| Hemerobiidae Latreille, 1802 | Blattlauslöwen | 146 | Arten | Taxom |
| Hemimylacridae Waterlot, 1934 | | 7 | Arten | Taxom |
| Hemiphlebiidae Fraser, 1960 | | 2 | Arten | Taxom |
| Hemipsocidae Pearman, 1936 | | 1 | Art | Taxom |
| Henrotayiidae Fleck, Bechl..., 2003 | | 1 | Art | Taxom |
| Hepialidae Stephens, 1829 | Wurzelbohrer | 85 | Arten | Taxom |
| Heptageniidae Needham, 1901 | Aderhafte | 197 | Arten | Taxom |
| Hermatobatidae Coutière and..., 1901 | | 2 | Arten | Taxom |
| Hesperiidae Latreille, 1809 | Dickkopfalter | 525 | Arten | Taxom |
| Hesperinidae Hendel, 1928 | | 5 | Arten | Taxom |
| Heteroceridae MacLeay, 1825 | Sägekäfer | 67 | Arten | Taxom |
| Heterocheilidae Mcalpine, 1991 | Halbbrückenfliegen | 3 | Arten | Taxom |
| Heterogastridae Stål, 1872 | | 25 | Arten | Taxom |
| Heterogynidae Rambur, 1866 | Federwidderchen | 8 | Arten | Taxom |
| Heteromyzidae Fallen, 1820 | Scheufliegen | 4 | Arten | Taxom |
| Heterophlebiidae Handlirsch, 1908 | | 14 | Arten | Taxom |
| Heterothripidae Bagnall, 1912 | | 2 | Arten | Taxom |
| Hexagenitidae Lameere, 1917 | | 7 | Arten | Taxom |
| Hilarimorphidae Hendel, 1936 | Auenfliegen | 6 | Arten | Taxom |
| Himantopteridae Rogenhofer, 1884 | | 5 | Arten | Taxom |
| Hippoboscidae Samouelle, 1819 | Lausfliegen | 144 | Arten | Taxom |
| Hispanocaderidae Golub, Popov..., 2012 | | 1 | Art | Taxom |
| Histeridae Gyllenhal, 1808 | Stutzkäfer | 855 | Arten | Taxom |
| Hodgsonicoccidae Vea & Grimaldi, 2015 | | 1 | Art | Taxom |
| Hodotermitidae Desneux, 1904 | | 3 | Arten | Taxom |
| Hoffeinsmyiidae Michelsen, 2009 | | 1 | Art | Taxom |
| Holcopogonidae Gozmany, 1967 | | 1 | Art | Taxom |
| Homalophlebiidae Handlirsch, 1906 | | 3 | Arten | Taxom |
| Homoiopteridae Handlirsch, 1906 | | 9 | Arten | Taxom |
| Homotomidae Heslop-Harrison, 1958 | | 5 | Arten | Taxom |
| Hoplopleuridae Ewing, 1929 | | 23 | Arten | Taxom |
| Huangiopteridae Prokop & al., 2015 | | 1 | Art | Taxom |
| Hyblaeidae Hampson, 1903 | | 4 | Arten | Taxom |
| Hybosoridae Erichson, 1847 | | 7 | Arten | Taxom |
| Hybotidae Meigen, 1820 | Buckeltanzfliegen | 683 | Arten | Taxom |
| Hydraenidae Mulsant, 1844 | Langtaster-Wasserkäfer | 802 | Arten | Taxom |
| Hydrobiosidae Ulmer, 1905 | | 171 | Arten | Taxom |
| Hydrometridae Billberg, 1820 | Teichläufer | 21 | Arten | Taxom |
| Hydrophilidae Latreille, 1802 | Kolbenwasserkäfer | 845 | Arten | Taxom |
| Hydropsychidae Curtis, 1835 | | 170 | Arten | Taxom |
| Hydroptilidae Stephens, 1836 | | 549 | Arten | Taxom |
| Hydroscaphidae LeConte, 1874 | | 3 | Arten | Taxom |
| Hygrobiidae Régimbart, 1878 | Feuchtkäfer | 3 | Arten | Taxom |
| Hylicellidae Evans, 1956 | | 4 | Arten | Taxom |
| Hymenopodidae Giglio-Tos, 1919 | | 7 | Arten | Taxom |
| Hyocephalidae Bergroth, 1906 | | 1 | Art | Taxom |
| Hypolestidae Fraser, 1938 | | 3 | Arten | Taxom |
| Hypsipterygidae Drake, 1961 | | 1 | Art | Taxom |
| Hystrichopsyllidae Tiraboschi, 1904 | | 12 | Arten | Taxom |
| Ibaliidae Thomson, 1862 | Dornwurmwespen | 10 | Arten | Taxom |
| Ichneumonidae Latreille, 1802 | Echte Schlupfwespen | 8788 | Arten | Taxom |
| Ideliidae (Zalessky, 1929) | | 1 | Art | Taxom |
| Idiostolidae Scudder, 1962 | | 1 | Art | Taxom |
| Immidae Heppner, 1977 | | 6 | Arten | Taxom |
| Incurvariidae Spuler, 1898 | Echte Blattsackfalter | 33 | Arten | Taxom |
| Inkaidae Koteja, 1989 | | 1 | Art | Taxom |
| Inocelliidae Navas, 1913 | | 8 | Arten | Taxom |
| Ipsviciidae Tillyard, 1919 | | 2 | Arten | Taxom |
| Ischnoneuridae Handlirsch, 1906 | | 6 | Arten | Taxom |
| Ischnopsyllidae Wahlgren, 1907 | Fledermausflöhe | 26 | Arten | Taxom |
| Ischnoptilidae Carpenter, 1951 | | 1 | Art | Taxom |
| Isophlebiidae Handlirsch, 1908 | | 3 | Arten | Taxom |
| Isostictidae Fraser, 1955 | | 4 | Arten | Taxom |
| Issidae Spinola, 1839 | Käferzikaden | 274 | Arten | Taxom |
| Ithonidae Newman, 1838 | | 2 | Arten | Taxom |
| Ithyceridae (Schönherr, 1826) | | 1 | Art | Taxom |
| Jacobsoniidae Heller, 1926 | | 5 | Arten | Taxom |
| Jantarimantidae Vrsansky, 2002 | | 1 | Art | Taxom |
| Jarmilidae Demoulin, 1970 | | 5 | Arten | Taxom |
| Jascopidae Hamilton, 1971 | | 4 | Arten | Taxom |
| Jassidae Latreille, 1802 | | 6 | Arten | Taxom |
| Jersicoccidae Koteja, 2000 | | 2 | Arten | Taxom |
| Jongmansiidae Laurentiaux, 1950 | | 1 | Art | Taxom |
| Joppeicidae Reuter, 1910 | | 1 | Art | Taxom |
| Juracorduliidae Bechly & Ueda, 2002 | | 1 | Art | Taxom |
| Juraheterophlebiidae Fleck & al., 2003 | | 1 | Art | Taxom |
| Jurinidae Zalessky, 1929 | | 1 | Art | Taxom |
| Jurodidae Ponomarenko, 1985 | | 1 | Art | Taxom |
| Kalligrammatidae Handlirsch, 1906 | | 6 | Arten | Taxom |
| Kalophryganeidae Haupt, 1956 | | 1 | Art | Taxom |
| Kalotermitidae Froggatt, 1897 | Trockenholztermiten | 39 | Arten | Taxom |
| Kaltanidae Martynova, 1958 | | 2 | Arten | Taxom |
| Karatavitidae Rasnitsyn, 1963 | | 1 | Art | Taxom |
| Kateretidae Kirkby, 1837 | Riedgras-Glanzkäfer | 5 | Arten | Taxom |
| Katerinkidae Prokop & Nel, 2007 | | 1 | Art | Taxom |
| Kermesidae Signoret, 1875 | Eichennapfläuse | 27 | Arten | Taxom |
| Keroplatidae Rondani, 1856 | Langhornmücken | 321 | Arten | Taxom |
| Khutelchalcididae Rasnitsyn & al., 2004 | | 1 | Art | Taxom |
| Kinnaridae Muir, 1925 | | 5 | Arten | Taxom |
| Kliveriidae Handlirsch, 1919 | | 1 | Art | Taxom |
| Kohlwaldiidae Guthörl, 1962 | | 1 | Art | Taxom |
| Kuwaniidae MacGillvray, 1921 | | 5 | Arten | Taxom |
| Labiduridae Verhoeff, 1902 | | 4 | Arten | Taxom |
| Labiidae (Burr, 1909) | | 16 | Arten | Taxom |
| Labiococcidae Koteja, 2000 | | 2 | Arten | Taxom |
| Lachesillidae Pearman, 1936 | | 32 | Arten | Taxom |
| Laemobothriidae Mjöberg, 1910 | | 12 | Arten | Taxom |
| Lamproptilidae Handlirsch, 1906 | | 1 | Art | Taxom |
| Lampyridae Latreille, 1817 | Glühwürmchen | 169 | Arten | Taxom |
| Languriidae (Latreille, 1802) | Getreidekäfer | 1 | Art | Taxom |
| Lapeyriidae Nel & al., 1999 | | 1 | Art | Taxom |
| Largidae Amyot and Se..., 1843 | | 8 | Arten | Taxom |
| Lasiocampidae Harris, 1841 | Glucken | 190 | Arten | Taxom |
| Lasiosynidae Kirejtshuk, ..., 2010 | | 3 | Arten | Taxom |
| Latridiidae Erichson, 1842 | Moderkäfer | 249 | Arten | Taxom |
| Lauxaniidae Macquart, 1835 | Faulfliegen | 341 | Arten | Taxom |
| Lebanococcidae Koteja & Azar, 2008 | | 1 | Art | Taxom |
| Lecanodiaspididae Borchsenius, 1965 | | 2 | Arten | Taxom |
| Lecithoceridae Le Marchand, 1947 | | 36 | Arten | Taxom |
| Leiodidae Fleming, 1821 | Schwammkugelkäfer | 1701 | Arten | Taxom |
| Lemmatophoridae Sellards, 1909 | | 1 | Art | Taxom |
| Lemoniidae Hampson, 1918 | Herbstspinner | 7 | Arten | Taxom |
| Lentulidae Dirsh, 1956 | | 4 | Arten | Taxom |
| Lepiceridae Hinton, 1936 | | 1 | Art | Taxom |
| Lepidopsocidae Lienhard & S..., 2002 | | 14 | Arten | Taxom |
| Lepidostomatidae Ulmer, 1903 | | 104 | Arten | Taxom |
| Leptidae | | 0 | Arten | Taxom |
| Leptoceridae Leach, 1815 | | 301 | Arten | Taxom |
| Leptohyphidae Landa & Soldán, 1985 | | 5 | Arten | Taxom |
| Leptophlebiidae Banks, 1900 | | 79 | Arten | Taxom |
| Leptopodidae Amyot and Se..., 1843 | Steinläuferwanzen | 11 | Arten | Taxom |
| Leptopsyllidae Rothschild &..., 1915 | | 32 | Arten | Taxom |
| Lestidae Calvert, 1901 | Binsenjungfern | 58 | Arten | Taxom |
| Lestoniidae China, 1955 | | 1 | Art | Taxom |
| Leucospidae Fabricius, 1775 | Falten-Erzwespen | 14 | Arten | Taxom |
| Leuctridae Klapálek, 1905 | | 203 | Arten | Taxom |
| Liadopsyllidae Martynov, 1927 | | 3 | Arten | Taxom |
| Liassogomphidae Tillyard, 1935 | | 5 | Arten | Taxom |
| Liassophilidae Tillyard, 1933 | | 4 | Arten | Taxom |
| Liassophlebiidae Tillyard, 1925 | | 12 | Arten | Taxom |
| Liassostenophlebiidae Fleck & al., 2003 | | 1 | Art | Taxom |
| Libellulidae Rambur, 1842 | Kurzlibellen | 283 | Arten | Taxom |
| Liberiblattinidae Vrsansky, 2002 | | 5 | Arten | Taxom |
| Limacodidae Duponchel, 1845 | Asselspinner | 73 | Arten | Taxom |
| Limnephilidae Kolenati, 1848 | | 656 | Arten | Taxom |
| Limnichidae Erichson, 1846 | Uferpillenkäfer | 34 | Arten | Taxom |
| Limoniidae (Speiser, 1909) | Stelzmücken | 415 | Arten | Taxom |
| Linognathidae Webb, 1946 | | 20 | Arten | Taxom |
| Liomopteridae Sellards, 1909 | | 13 | Arten | Taxom |
| Liopteridae Ashmead, 1895 | | 2 | Arten | Taxom |
| Liposcelididae Enderlein, 1911 | Bücherläuse | 68 | Arten | Taxom |
| Lithomanteidae Handlirsch, 1906 | | 15 | Arten | Taxom |
| Lithoneuridae Sroka & al., 2014 | | 1 | Art | Taxom |
| Lithuanicoccidae Koteja, 2008 | | 2 | Arten | Taxom |
| Litophlebiidae Hubbard & Riek, 1978 | | 1 | Art | Taxom |
| Liturgusidae Giglio-Tos, 1919 | | 1 | Art | Taxom |
| Liupanshaniidae Bechly & al, 2001 | | 4 | Arten | Taxom |
| Liviidae Low, 1879 | | 49 | Arten | Taxom |
| Locustavidae Sharov, 1968 | | 1 | Art | Taxom |
| Locustidae (Kirby, 1825) | | 2 | Arten | Taxom |
| Locustopsidae Handlirsch, 1906 | | 39 | Arten | Taxom |
| Lodeviidae Nel & al., 2012 | | 1 | Art | Taxom |
| Lonchaeidae Loew, 1861 | Lanzenfliegen | 171 | Arten | Taxom |
| Lonchopteridae Curtis, 1839 | Lanzenfliegen | 23 | Arten | Taxom |
| Lophocoronidae Common, 1973 | | 1 | Art | Taxom |
| Lophopidae Stål, 1866 | | 4 | Arten | Taxom |
| Lucanidae Latreille, 1804 | Hirschkäfer | 146 | Arten | Taxom |
| Lutevanaphididae Szwedo, Lape..., 2014 | | 1 | Art | Taxom |
| Lutrochidae Kasap & Crowson, 1975 | | 1 | Art | Taxom |
| Lycaenidae Leach, 1815 | Bläulinge | 1076 | Arten | Taxom |
| Lycidae Laporte, 1836 | Rotdeckenkäfer | 76 | Arten | Taxom |
| Lycocercidae Handlirsch, 1906 | | 3 | Arten | Taxom |
| Lygaeidae Schilling, 1829 | Bodenwanzen | 158 | Arten | Taxom |
| Lygistorrhinidae Hendel, 1936 | | 1 | Art | Taxom |
| Lymexylidae Fleming, 1821 | Werftkäfer | 10 | Arten | Taxom |
| Lyonetiidae Stainton, 1854 | Langhorn-Blattminierfalter | 158 | Arten | Taxom |
| Lypusidae Herrich-Schä..., 1857 | | 8 | Arten | Taxom |
| Machaerotidae Stål, 1866 | | 3 | Arten | Taxom |
| Macropsyllidae Oudemans, 1909 | | 1 | Art | Taxom |
| Macroveliidae McKinstry, 1942 | | 1 | Art | Taxom |
| Magnacicadiidae Hong & Chen, 1981 | | 2 | Arten | Taxom |
| Maimetshidae (Rasnitsyn, 1975) | | 7 | Arten | Taxom |
| Malcidae Stål, 1865 | | 3 | Arten | Taxom |
| Mancusoblattidae Martins-Neto..., 2005 | | 3 | Arten | Taxom |
| Mantidae Burmeister, 1838 | Fangschrecken | 67 | Arten | Taxom |
| Mantispidae Leach, 1815 | Fanghafte | 39 | Arten | Taxom |
| Mantoididae Giglio-Tos, 1927 | | 0 | Arten | Taxom |
| Mantophasmatidae Zompro, Kla..., 2002 | Gladiatoren | 5 | Arten | Taxom |
| Marchalinidae Morrison, 1927 | | 1 | Art | Taxom |
| Margarodidae Newstead, 1901 | Höhlenschildläuse | 59 | Arten | Taxom |
| Martynoviidae Tillyard, 1932 | | 6 | Arten | Taxom |
| Mastacideidae Rehn, 1948 | | 1 | Art | Taxom |
| Mastotermitidae Desneux, 1904 | Riesentermiten | 19 | Arten | Taxom |
| Matsucoccidae Morrison, 1927 | Kiefernborkenschildläuse | 18 | Arten | Taxom |
| Mecynostomatidae Kukalová, 1969 | | 2 | Arten | Taxom |
| Medocostidae Stys, 1967 | | 2 | Arten | Taxom |
| Meenoplidae Fieber, 1872 | | 35 | Arten | Taxom |
| Megachilidae Schenk, 1860 | Bauchsammlerbienen | 1375 | Arten | Taxom |
| Megagnathidae Tillyard, 1918 | | 1 | Art | Taxom |
| Megalodontesidae Konow, 1897 | | 31 | Arten | Taxom |
| Megalopodidae Latreille, 1802 | | 14 | Arten | Taxom |
| Megalopygidae Herrich-Schä..., 1855 | | 9 | Arten | Taxom |
| Megalyridae Schletterer, 1889 | | 13 | Arten | Taxom |
| Megamerinidae Hendel, 1913 | Borkenfliegen | 3 | Arten | Taxom |
| Meganeuridae Handlirsch, 1906 | | 23 | Arten | Taxom |
| Megapodagrionidae Tillyard, 1917 | | 27 | Arten | Taxom |
| Megaptilidae Handlirsch, 1906 | | 1 | Art | Taxom |
| Megaspilidae Ashmead, 1893 | | 167 | Arten | Taxom |
| Melandryidae Leach, 1815 | Düsterkäfer | 101 | Arten | Taxom |
| Melanthripidae Bagnall, 1913 | | 30 | Arten | Taxom |
| Melittidae Schenk, 1860 | Sägehornbienen | 99 | Arten | Taxom |
| Meloidae Gyllenhal, 1810 | Blasenkäfer | 267 | Arten | Taxom |
| Melolonthidae (Leach, 1817) | Maikäfer | 1 | Art | Taxom |
| Melyridae Leach, 1815 | Wollhaarkäfer | 598 | Arten | Taxom |
| Membracidae Germar, 1821 | Buckelzikaden | 69 | Arten | Taxom |
| Mengeidae Pierce, 1908 | | 2 | Arten | Taxom |
| Mengenillidae Kinzelbach, 1970 | | 11 | Arten | Taxom |
| Menoponidae Mjöberg, 1910 | | 317 | Arten | Taxom |
| Meropeidae Espen-Petersen, 1921 | | 1 | Art | Taxom |
| Merothripidae Hood, 1914 | | 4 | Arten | Taxom |
| Mesephemeridae Lameere, 1917 | | 4 | Arten | Taxom |
| Mesoblattinidae Handlirsch, 1906 | | 74 | Arten | Taxom |
| Mesochlorogomphidae Fleck & al., 2008 | | 2 | Arten | Taxom |
| Mesochrysopidae Handlirsch, 1906 | | 10 | Arten | Taxom |
| Mesogereonidae Tillyard, 1921 | | 1 | Art | Taxom |
| Mesoplectopteridae Demoulin, 1955 | | 1 | Art | Taxom |
| Mesopolystoechotidae Martynova, 1949 | | 1 | Art | Taxom |
| Mesopsocidae Enderlein, 1903 | | 25 | Arten | Taxom |
| Mesopsychidae Tillyard, 1917 | | 2 | Arten | Taxom |
| Mesoraphidiidae Martynov, 1925 | | 21 | Arten | Taxom |
| Mesorthopteridae Tillyard, 1922 | | 1 | Art | Taxom |
| Mesosciophilidae Rohdendorf, 1946 | | 2 | Arten | Taxom |
| Mesoserphidae Kozlov, 1970 | | 1 | Art | Taxom |
| Mesotitanidae Tillyard, 1925 | | 2 | Arten | Taxom |
| Mesoveliidae Douglas and ..., 1867 | Hüftwasserläufer | 15 | Arten | Taxom |
| Mesozoicaphididae Heie, 1992 | | 1 | Art | Taxom |
| Mesuropetalidae Bechly, 1996 | | 4 | Arten | Taxom |
| Metropatoridae Handlirsch, 1906 | | 1 | Art | Taxom |
| Micrococcidae Silvestri, 1939 | | 6 | Arten | Taxom |
| Micromalthidae Barber, 1913 | | 3 | Arten | Taxom |
| Micronectidae Jaczewski, 1924 | | 27 | Arten | Taxom |
| Micropalentomidae Schmidt, 1962 | | 2 | Arten | Taxom |
| Micropezidae Illiger, 1798 | Stelzenfliegen | 51 | Arten | Taxom |
| Microphysidae Dohrn, 1859 | Flechtenwanzen | 38 | Arten | Taxom |
| Micropterigidae Herrich-Schä..., 1855 | Urmotten | 72 | Arten | Taxom |
| Microptysmatidae Martynova, 1958 | | 1 | Art | Taxom |
| Milichiidae Schiner, 1862 | Nistfliegen | 122 | Arten | Taxom |
| Millieriidae (Stainton, 1854) | | 1 | Art | Taxom |
| Mimallonidae Burmeister, 1878 | | 17 | Arten | Taxom |
| Mimarachnidae Shcherbakov, 2007 | | 2 | Arten | Taxom |
| Miridae Hahn, 1831 | Blindwanzen | 1773 | Arten | Taxom |
| Mirinidae (Kozlov, 1985) | | 0 | Arten | Taxom |
| Mischopteridae Handlirsch, 1906 | | 2 | Arten | Taxom |
| Misthodotidae Tillyard, 1932 | | 2 | Arten | Taxom |
| Mnesarchaeidae Eyer, 1924 | | 2 | Arten | Taxom |
| Mogoplistidae Saussure, 1877 | | 26 | Arten | Taxom |
| Molannidae Wallengren, 1891 | | 4 | Arten | Taxom |
| Monomachidae Ashmead, 1902 | | 3 | Arten | Taxom |
| Monophlebidae Signoret, 1875 | Riesenschildläuse | 24 | Arten | Taxom |
| Monotomidae Laporte, 1840 | Detrituskäfer | 64 | Arten | Taxom |
| Morabidae Rehn, 1948 | | 1 | Art | Taxom |
| Moravohymenidae Kukalova-Peck, 1972 | | 1 | Art | Taxom |
| Mordellidae Latreille, 1802 | Stachelkäfer | 342 | Arten | Taxom |
| Moundthripidae Nel & al., 2007 | | 1 | Art | Taxom |
| Muscidae Latreille, 1802 | Echte Fliegen | 1668 | Arten | Taxom |
| Mutillidae André, 1907 | Ameisenwespen | 229 | Arten | Taxom |
| Mycetobiidae Winnertz, 1863 | | 1 | Art | Taxom |
| Mycetophagidae Leach, 1815 | Baumschwammkäfer | 44 | Arten | Taxom |
| Mycetophilidae Newman, 1834 | Pilzmücken | 4602 | Arten | Taxom |
| Mycteridae Blanchard, 1845 | Haarscheinrüssler | 8 | Arten | Taxom |
| Mydidae Bezzi, 1903 | Mydasfliegen | 9 | Arten | Taxom |
| Myerslopiidae Evans, 1957 | | 1 | Art | Taxom |
| Mylacridae Scudder, 1886 | | 29 | Arten | Taxom |
| Mymaridae Haliday, 1833 | Eierschlupfwespen | 525 | Arten | Taxom |
| Mymarommatidae Debauche, 1948 | | 37 | Arten | Taxom |
| Myopophlebiidae Bode, 1953 | | 7 | Arten | Taxom |
| Myopsocidae Enderlein, 1907 | | 3 | Arten | Taxom |
| Myrmecolacidae Saunders, 1872 | | 9 | Arten | Taxom |
| Myrmecophilidae Saussure, 1874 | Ameisengrillen | 25 | Arten | Taxom |
| Myrmeleontidae Latreille, 1802 | Ameisenjungfern | 400 | Arten | Taxom |
| Myrmosidae Fox, 1894 | Trugameisen | 1 | Art | Taxom |
| Mythicomyiidae Melander, 1902 | Zwergwollschweber | 10 | Arten | Taxom |
| Nabidae Costa, 1852 | Sichelwanzen | 83 | Arten | Taxom |
| Nadipteridae Lukashevich, 1995 | | 1 | Art | Taxom |
| Namurodiaphidae Kukalová-Pec..., 1990 | | 1 | Art | Taxom |
| Namurotypidae Bechly, 1996 | | 1 | Art | Taxom |
| Nannochoristidae Tillyard, 1917 | | 1 | Art | Taxom |
| Nannodastiidae Papp, 1980 | | 3 | Arten | Taxom |
| Naucoridae Leach, 1815 | Ruderwanzen | 30 | Arten | Taxom |
| Neazoniidae Szwedo, 2007 | | 1 | Art | Taxom |
| Necrotauliidae Handlirsch, 1906 | | 29 | Arten | Taxom |
| Necymylacridae Durden, 1969 | | 12 | Arten | Taxom |
| Nemestrinidae Macquart, 1834 | | 21 | Arten | Taxom |
| Nemonychidae Bedel, 1882 | Ritterspornrüssler | 27 | Arten | Taxom |
| Nemopteridae Rambur, 1842 | Fadenhafte | 16 | Arten | Taxom |
| Nemouridae Newman, 1853 | | 214 | Arten | Taxom |
| Neoblattariae Scudder, 1886 | | 5 | Arten | Taxom |
| Neoephemeridae Traver, 1935 | | 1 | Art | Taxom |
| Neopetaliidae Tillyard & F..., 1940 | | 0 | Arten | Taxom |
| Neorthroblattinidae Handlirsch, 1906 | | 17 | Arten | Taxom |
| Nepidae Latreille, 1802 | Skorpionswanzen | 26 | Arten | Taxom |
| Nepticulidae Stainton, 1854 | Zwergminierfalter | 625 | Arten | Taxom |
| Neriidae Hendel, 1916 | | 4 | Arten | Taxom |
| Nesameletidae (Kluge, Stude..., 1995) | | 1 | Art | Taxom |
| Neurorthidae (Nakahara, 1958) | | 3 | Arten | Taxom |
| Nevrorthidae Nakahara, 1958 | | 1 | Art | Taxom |
| Nitidulidae Latreille, 1802 | Glanzkäfer | 539 | Arten | Taxom |
| Nocticolidae Bolivar, 1892 | | 2 | Arten | Taxom |
| Noctuidae Latreille, 1809 | Erdraupen | 3594 | Arten | Taxom |
| Nogodinidae Melichar, 1898 | | 32 | Arten | Taxom |
| Nolidae Hampson, 1894 | Graueulchen | 151 | Arten | Taxom |
| Nosodendridae Erichson, 1846 | Saftkäfer | 2 | Arten | Taxom |
| Noteridae C. G. Thomson, 1860 | Ruderschwimmer | 21 | Arten | Taxom |
| Notodontidae Stephens, 1829 | Zahnspinner | 436 | Arten | Taxom |
| Notonectidae Latreille, 1802 | Rückenschwimmer | 79 | Arten | Taxom |
| Nycteribiidae Samouelle, 1819 | Fledermausfliegen | 1 | Art | Taxom |
| Nymphalidae Rafinesque, 1815 | Edelfalter | 1426 | Arten | Taxom |
| Nymphidae Rambur, 1842 | | 8 | Arten | Taxom |
| Nymphomyiidae Tokunaga, 1932 | | 1 | Art | Taxom |
| Oboraneuridae Zessin, 2008 | | 1 | Art | Taxom |
| Oborocoleidae Kukalová, 1968 | | 2 | Arten | Taxom |
| Obrieniidae Zherikhin an..., 1994 | | 1 | Art | Taxom |
| Ochodaeidae Mulsant & Rey, 1870 | | 15 | Arten | Taxom |
| Ochteridae Kirkaldy, 1906 | | 1 | Art | Taxom |
| Odiniidae Hendel, 1920 | | 23 | Arten | Taxom |
| Odontoceridae Wallengren, 1891 | | 8 | Arten | Taxom |
| Oecanthidae (Blanchard, 1845) | | 18 | Arten | Taxom |
| Oeconesidae Tillyard, 1921 | | 7 | Arten | Taxom |
| Oecophoridae Bruand, 1851 | Breitflügelmotten | 375 | Arten | Taxom |
| Oedemeridae Latreille, 1810 | Engdeckenflügler | 126 | Arten | Taxom |
| Oedischiidae Handlirsch, 1906 | | 22 | Arten | Taxom |
| Oestridae Leach, 1815 | Biesfliegen | 60 | Arten | Taxom |
| Oligoneuriidae Ulmer, 1914 | | 20 | Arten | Taxom |
| Oligotomidae Enderlein, 1909 | | 4 | Arten | Taxom |
| Omaliidae Handlirsch, 1904 | | 2 | Arten | Taxom |
| Omalisidae Lacordaire, 1857 | Blutkäfer | 2 | Arten | Taxom |
| Omaniidae Cobben, 1970 | | 1 | Art | Taxom |
| Omethidae LeConte, 1861 | | 1 | Art | Taxom |
| Ommatidae Sharp & Muir, 1912 | | 37 | Arten | Taxom |
| Ommexechidae Bolivar, 1884 | | 0 | Arten | Taxom |
| Opetiidae Rondani, 1856 | | 4 | Arten | Taxom |
| Opomyzidae (Fallen, 1820) | Grasfliegen | 84 | Arten | Taxom |
| Opostegidae Meyrick, 1893 | | 15 | Arten | Taxom |
| Ormyridae Förster, 1856 | | 31 | Arten | Taxom |
| Orsodacnidae Thomson, 1859 | | 4 | Arten | Taxom |
| Ortheziidae Green, 1896 | Röhrenschildläuse | 35 | Arten | Taxom |
| Orthomylacridae see Durden, 1969 | | 10 | Arten | Taxom |
| Orthophlebiidae Handlirsch, 1906 | | 56 | Arten | Taxom |
| Orussidae Newman, 1834 | | 11 | Arten | Taxom |
| Osmylidae Leach, 1815 | Bachhafte | 21 | Arten | Taxom |
| Osmylopsychopidae Martynova, 1949 | | 1 | Art | Taxom |
| Otitidae (Macquart, 1835) | Schmuckfliegen | 176 | Arten | Taxom |
| Oviparosiphidae Shaposhnikov, 1979 | | 4 | Arten | Taxom |
| Oxycarenidae Stål, 1862 | | 43 | Arten | Taxom |
| Pachygronthidae Stål, 1865 | | 6 | Arten | Taxom |
| Pachymeridiidae Handlirsch, 1906 | | 8 | Arten | Taxom |
| Pachyneuridae Schiner, 1864 | | 3 | Arten | Taxom |
| Pachynomidae Stål, 1873 | | 2 | Arten | Taxom |
| Pachytroctidae Enderlein, 1911 | | 7 | Arten | Taxom |
| Pachytylopsidae Handlirsch, 1904 | | 6 | Arten | Taxom |
| Palaeoaphididae Richards, 1966 | | 3 | Arten | Taxom |
| Palaeoleontidae Martins-Neto, 1992 | | 1 | Art | Taxom |
| Palaeomacromiidae Petruleviciu..., 1999 | | 1 | Art | Taxom |
| Palaeomanteidae Handlirsch, 1906 | | 24 | Arten | Taxom |
| Palaeonemouridae N.D. Siniche..., 1987 | | 1 | Art | Taxom |
| Palaeontinidae Handlirsch, 1906 | | 16 | Arten | Taxom |
| Paleoblattidae Scudder, 1879 | | 4 | Arten | Taxom |
| Paleuthygrammatidae Carpenter, 1943 | | 1 | Art | Taxom |
| Palingeniidae Albarda, 1888 | | 5 | Arten | Taxom |
| Pallopteridae Loew, 1862 | Zitterfliegen | 53 | Arten | Taxom |
| Pamphagidae Burmeister, 1840 | Steinschrecken | 83 | Arten | Taxom |
| Pamphiliidae Cameron, 1890 | Gespinstblattwespen | 94 | Arten | Taxom |
| Panfiloviidae Makarkin, 1990 | | 1 | Art | Taxom |
| Panorpidae Linnaeus, 1758 | Skorpionsfliegen | 67 | Arten | Taxom |
| Panorpodidae Byers, 1965 | | 4 | Arten | Taxom |
| Pantophthalmidae Williston, 1906 | | 1 | Art | Taxom |
| Paoliidae Handlirsch, 1906 | | 12 | Arten | Taxom |
| Papilionidae Latreille, 1802 | Ritter | 277 | Arten | Taxom |
| Parabrodiidae Carpenter, 1934 | | 1 | Art | Taxom |
| Paralogidae Handlirsch, 1906 | | 3 | Arten | Taxom |
| Parandrexidae Kirejtshuk, 1994 | | 1 | Art | Taxom |
| Parasialidae Ponomarenko, 1977 | | 1 | Art | Taxom |
| Parastenophlebiidae Bechly, 2005 | | 1 | Art | Taxom |
| Parelmoidae Rohdendorf, 1962 | | 1 | Art | Taxom |
| Passalidae Leach, 1815 | Zuckerkäfer | 14 | Arten | Taxom |
| Pediciidae Osten Sacken, 1860 | | 17 | Arten | Taxom |
| Pedicinidae Enderlein, 1904 | | 5 | Arten | Taxom |
| Pediculidae Leach, 1817 | Menschenläuse | 7 | Arten | Taxom |
| Pelecinidae Haliday, 1839 | | 2 | Arten | Taxom |
| Pelecorhynchidae Philip, 1941 | | 2 | Arten | Taxom |
| Peloridiidae Breddin, 1897 | | 1 | Art | Taxom |
| Peltoperlidae Claassen, 1931 | | 5 | Arten | Taxom |
| Pennygullaniidae Koteja & Azar, 2008 | | 1 | Art | Taxom |
| Pentatomidae Leach, 1815 | Baumwanzen | 494 | Arten | Taxom |
| Pereboriidae Zalessky, 1930 | | 2 | Arten | Taxom |
| Perforissidae Shcherbakov, 2007 | | 3 | Arten | Taxom |
| Pergidae Rohwer, 1911 | | 7 | Arten | Taxom |
| Perilampidae Latreille, 1809 | | 90 | Arten | Taxom |
| Perilestidae Tillyard & F..., 1938 | | 0 | Arten | Taxom |
| Peripsocidae Roesler, 1944 | | 21 | Arten | Taxom |
| Periscelididae Oldenberg, 1914 | Saftfliegen | 17 | Arten | Taxom |
| Perlariopseidae N.D. Siniche..., 1985 | | 2 | Arten | Taxom |
| Perlidae (Latreille, 1802) | | 95 | Arten | Taxom |
| Perlodidae Klapálek, 1912 | | 177 | Arten | Taxom |
| Permagrionidae Tillyard, 1928 | | 3 | Arten | Taxom |
| Permelcanidae Sharov, 1962 | | 5 | Arten | Taxom |
| Permithonidae Tillyard, 1922 | | 4 | Arten | Taxom |
| Permobiellidae Tillyard, 1937 | | 1 | Art | Taxom |
| Permochoristidae Tillyard, 1918 | | 3 | Arten | Taxom |
| Permopectinidae Aristov, 2005 | | 1 | Art | Taxom |
| Permophlebiidae Nel & al., 2001 | | 1 | Art | Taxom |
| Permosialidae Martynov, 1928 | | 1 | Art | Taxom |
| Permosynidae Tillyard, 1924 | | 3 | Arten | Taxom |
| Permotermopsidae Martuinov, 1937 | | 1 | Art | Taxom |
| Permulidae Aristov & St..., 2011 | | 1 | Art | Taxom |
| Personidae Gray, 1854 | | 3 | Arten | Taxom |
| Petaluridae Needham, 1903 | | 13 | Arten | Taxom |
| Petrablattinidae Durden, 1969 | | 1 | Art | Taxom |
| Phaeomyiidae (Verbeke, 1950) | Tausendfüßerfliegen | 6 | Arten | Taxom |
| Phalacridae Leach, 1815 | Glattkäfer | 65 | Arten | Taxom |
| Phalangopsidae (Chopard, 1949) | | 11 | Arten | Taxom |
| Phasmatidae Roberts, 1944 | | 22 | Arten | Taxom |
| Phasmomimidae Sharov, 1968 | | 17 | Arten | Taxom |
| Phengodidae LeConte, 1861 | Federleuchtkäfer | 5 | Arten | Taxom |
| Phenopteridae Carpenter, 1950 | | 1 | Art | Taxom |
| Philopotamidae Stephens, 1829 | | 122 | Arten | Taxom |
| Philopteridae Burmeister, 1830 | Federlinge | 815 | Arten | Taxom |
| Philorheithridae Mosely, 1936 | | 2 | Arten | Taxom |
| Philotarsidae Pearman, 1936 | | 10 | Arten | Taxom |
| Phlaeothripidae Uzel, 1895 | | 334 | Arten | Taxom |
| Phloeidae Amyot & Serv..., 1843 | | 1 | Art | Taxom |
| Phloeostichidae Reitter, 1911 | Rindenplattkäfer | 1 | Art | Taxom |
| Phloiophilidae Kiesenwetter, 1863 | Doppelzahnwollhaarkäfer | 3 | Arten | Taxom |
| Phoberoblattidae Durden, 1969 | | 26 | Arten | Taxom |
| Phoenicococcidae Stickney, 1934 | | 1 | Art | Taxom |
| Pholidoptilidae Zalessky, 1931 | | 2 | Arten | Taxom |
| Phoridae Curtis, 1833 | Buckelfliegen | 1212 | Arten | Taxom |
| Phryganeidae (Leach, 1815) | | 85 | Arten | Taxom |
| Phycosecidae Crowson, 1952 | | 0 | Arten | Taxom |
| Phylliidae Redtenbacher, 1906 | Wandelnde Blätter | 3 | Arten | Taxom |
| Phylloxeridae Herrich-Scha..., 1854 | Zwergblattläuse | 28 | Arten | Taxom |
| Phyloblattidae Schneider, 1983 | | 6 | Arten | Taxom |
| Pieridae Duponchel, 1835 | Weißlinge | 305 | Arten | Taxom |
| Piesmatidae Amyot & Audi..., 1843 | Meldenwanzen | 28 | Arten | Taxom |
| Piophilidae Macquart, 1835 | Käsefliegen | 95 | Arten | Taxom |
| Pipunculidae Walker, 1834 | Augenfliegen | 379 | Arten | Taxom |
| Piroutetiidae Nel, 1989 | | 1 | Art | Taxom |
| Pityococcidae Mckenzie, 1942 | | 2 | Arten | Taxom |
| Planelytridae Kukalová, 1965 | | 1 | Art | Taxom |
| Plataspidae (Dallas, 1851) | Breitschildwanzen | 7 | Arten | Taxom |
| Plataspididae (Dallas, 1851) | Kugelwanzen | 8 | Arten | Taxom |
| Platycnemididae Tillyard, 1917 | Federlibellen | 15 | Arten | Taxom |
| Platygastridae Haliday, 1833 | | 655 | Arten | Taxom |
| Platypezidae Fallen, 1815 | Pilzfliegen | 87 | Arten | Taxom |
| Platystictidae Laidlaw, 1924 | | 2 | Arten | Taxom |
| Platystomatidae Schiner, 1862 | Breitmundfliegen | 68 | Arten | Taxom |
| Pleciofungivoridae Rohdendorf, 1946 | | 3 | Arten | Taxom |
| Pleciomimidae Rodendorf, 1949 | | 2 | Arten | Taxom |
| Plectrotarsidae Mosely, 1953 | | 1 | Art | Taxom |
| Pleidae Fieber, 1817 | Zwergrückenschwimmer | 10 | Arten | Taxom |
| Pleocomidae LeConte, 1861 | | 2 | Arten | Taxom |
| Plokiophilidae China, 1953 | | 3 | Arten | Taxom |
| Plumalexiidae Brothers, 2011 | | 1 | Art | Taxom |
| Plutellidae Guenée, 1845 | Halbmotten | 116 | Arten | Taxom |
| Pneumoridae Stål, 1873 | | 3 | Arten | Taxom |
| Podoscirtidae Saussure, 1878 | | 18 | Arten | Taxom |
| Polycentropodidae Ulmer, 1903 | | 174 | Arten | Taxom |
| Polyctenidae Westwood, 1874 | Fledermauswanzen | 2 | Arten | Taxom |
| Polymitarcyidae Banks, 1900 | | 11 | Arten | Taxom |
| Polyphagidae (Walker, 1868) | | 1 | Art | Taxom |
| Polyplacidae Fahrenholz, 1912 | | 51 | Arten | Taxom |
| Polythoridae Munz, 1919 | | 3 | Arten | Taxom |
| Pompilidae Latreille, 1805 | Wegwespen | 493 | Arten | Taxom |
| Ponopterixidae Nel & al., 2014 | | 4 | Arten | Taxom |
| Poroblattinidae Handlirsch, 1906 | | 9 | Arten | Taxom |
| Potamanthidae Albarda, 1888 | | 3 | Arten | Taxom |
| Prionoceridae Lacaordaire, 1857 | | 1 | Art | Taxom |
| Prionoglarididae Badonnel, 1951 | | 2 | Arten | Taxom |
| Priscaenigmatidae Engel, 2002 | | 3 | Arten | Taxom |
| Priscalestidae Wappler & Pe..., 2007 | | 1 | Art | Taxom |
| Prisopodidae Brunner von ..., 1893 | | 3 | Arten | Taxom |
| Probascaniidae Handlirsch, 1921 | | 1 | Art | Taxom |
| Probnidae Sellards, 1909 | | 1 | Art | Taxom |
| Procercopidae Handlirsch, 1906 | | 12 | Arten | Taxom |
| Prochresmodidae Vishniakova, 1980 | | 2 | Arten | Taxom |
| Procramptonomyiidae Kovalev, 1985 | | 2 | Arten | Taxom |
| Proctotrupidae Latreille, 1802 | Zehrwespen | 94 | Arten | Taxom |
| Prodoxidae Riley, 1881 | Rosen-Blattsackfalter | 28 | Arten | Taxom |
| Proedischiidae Pinto & Orne..., 1978 | | 3 | Arten | Taxom |
| Progonocimicidae Handlirsch, 1906 | | 15 | Arten | Taxom |
| Prohemerobiidae Handlirsch, 1906 | | 37 | Arten | Taxom |
| Prohemeroscopidae Bechly & Ueda, 2002 | | 2 | Arten | Taxom |
| Promecheilidae Lacordaire, 1859 | | 2 | Arten | Taxom |
| Proparagryllacrididae Riek, 1956 | | 0 | Arten | Taxom |
| Prophalangopsidae Saussure, 1878 | | 22 | Arten | Taxom |
| Prosbolidae Handlirsch, 1906 | | 6 | Arten | Taxom |
| Proscopiidae Serville, 1838 | Pferdekopfschrecken | 3 | Arten | Taxom |
| Prosepididontidae A Handlirsch, 1919 | | 1 | Art | Taxom |
| Prosopistomatidae Lameere, 1917 | | 5 | Arten | Taxom |
| Prostenophlebiidae Fleck & al., 2003 | | 2 | Arten | Taxom |
| Prostomidae C. G. Thomson, 1859 | Schaufelkäfer | 1 | Art | Taxom |
| Protelytridae Tillyard, 1931 | | 1 | Art | Taxom |
| Protembiidae Tillyard, 1937 | | 2 | Arten | Taxom |
| Protereismatidae Lameere, 1917 | | 7 | Arten | Taxom |
| Proteremidae Handlirsch, 1906 | | 1 | Art | Taxom |
| Proterogomphidae Bechly, 1996 | | 2 | Arten | Taxom |
| Protobrachyceridae Rohdendorf, 1962 | | 2 | Arten | Taxom |
| Protocoridae Handlirsch, 1906 | | 4 | Arten | Taxom |
| Protodiplatyidae Martynov, 1925 | | 1 | Art | Taxom |
| Protomeropidae Tillyard, 1926 | | 7 | Arten | Taxom |
| Protomyrmeleontidae Handlirsch, 1906 | | 15 | Arten | Taxom |
| Protoneuridae Tillyard, 1917 | | 3 | Arten | Taxom |
| Protophasmatidae Brongniart, 1885 | | 3 | Arten | Taxom |
| Protophasmidae (Scudder, 1885) | | 2 | Arten | Taxom |
| Protopleciidae Rohdendorf, 1946 | | 5 | Arten | Taxom |
| Protoprosbolidae Laurentiaux, 1952 | | 1 | Art | Taxom |
| Protopsyllidiidae Becker-Migdi..., 1960 | | 4 | Arten | Taxom |
| Protorhyphidae Handlirsch, 1906 | | 8 | Arten | Taxom |
| Protoxenidae Pohl, Beutel..., 2005 | | 1 | Art | Taxom |
| Protroctopsocidae Smithers, 1972 | | 3 | Arten | Taxom |
| Pruvostitidae Zalessky, 1929 | | 14 | Arten | Taxom |
| Psammocharidae (Yasumatsu, 1935) | | 0 | Arten | Taxom |
| Psephenidae Lacordaire, 1854 | Bachkäfer | 7 | Arten | Taxom |
| Pseudocaeciliidae Pearman, 1936 | | 4 | Arten | Taxom |
| Pseudococcidae Heymons, 1915 | Schmierläuse | 443 | Arten | Taxom |
| Pseudomylacridae Handlirsch, 1906 | | 2 | Arten | Taxom |
| Pseudophasmatidae Kirby, 1896 | | 8 | Arten | Taxom |
| Pseudophyllodromiidae Hebard, 1929 | | 36 | Arten | Taxom |
| Pseudopolycentropodidae Handlirsch, 1925 | | 6 | Arten | Taxom |
| Pseudopomyzidae (Mcalpine, 1966) | Scheingrasfliegen | 3 | Arten | Taxom |
| Pseudostenolestidae Garrouste & Nel, 2015 | | 1 | Art | Taxom |
| Pseudostigmatidae Tillyard, 1917 | | 8 | Arten | Taxom |
| Psilidae Macquart, 1835 | Nacktfliegen | 159 | Arten | Taxom |
| Psocidae Samouelle, 1819 | Holzläuse | 173 | Arten | Taxom |
| Psocidiidae Tillyard, 1926 | | 1 | Art | Taxom |
| Psoquillidae Lienhard & S..., 2002 | | 5 | Arten | Taxom |
| Psoropteridae Carpenter, 1977 | | 1 | Art | Taxom |
| Psychidae Boisduval, 1828 | Echte Sackträger | 410 | Arten | Taxom |
| Psychodidae Newman, 1834 | Schmetterlingsmücken | 908 | Arten | Taxom |
| Psychomyiidae Walker, 1852 | | 136 | Arten | Taxom |
| Psychopsidae Handlirsch, 1906 | | 23 | Arten | Taxom |
| Psyllidae Latreille, 1807 | Blattflöhe | 338 | Arten | Taxom |
| Psyllipsocidae Enderlein, 1903 | | 15 | Arten | Taxom |
| Pteridomylacridae Handlirsch, 1906 | | 11 | Arten | Taxom |
| Pterocimicidae Popov & al., 1994 | | 1 | Art | Taxom |
| Pterolonchidae Meyrick, 1918 | | 2 | Arten | Taxom |
| Pteromalidae Dalman, 1820 | | 1671 | Arten | Taxom |
| Pteronarcyidae Enderlein, 1909 | | 8 | Arten | Taxom |
| Pterophoridae Zeller, 1841 | Federgeistchen | 475 | Arten | Taxom |
| Pteroplistidae (Chopard, 1936) | | 2 | Arten | Taxom |
| Pthiridae Leach, 1817 | | 2 | Arten | Taxom |
| Ptiliidae Heer, 1843 | Federflügler | 198 | Arten | Taxom |
| Ptilodactylidae Laporte, 1836 | | 5 | Arten | Taxom |
| Ptiloneuridae Eertmoed, 1973 | | 4 | Arten | Taxom |
| Ptinidae Latreille, 1802 | Diebkäfer | 508 | Arten | Taxom |
| Ptychopteridae Osten Sacken, 1862 | Faltenmücken | 50 | Arten | Taxom |
| Pulicidae Billberg, 1820 | Menschenflöhe | 31 | Arten | Taxom |
| Putoidae Beardsley, 1969 | | 22 | Arten | Taxom |
| Pygidicranidae (Verhoeff, 1902) | | 8 | Arten | Taxom |
| Pygiopsyllidae Wagner, 1939 | | 3 | Arten | Taxom |
| Pyralidae Latreille, 1802 | Echte Zünsler | 1149 | Arten | Taxom |
| Pyrgomorphidae Brunner von ..., 1874 | Kegelkopfschrecken | 35 | Arten | Taxom |
| Pyrgotidae Schiner, 1868 | | 1 | Art | Taxom |
| Pyrochroidae Latreille, 1807 | Feuerkäfer | 21 | Arten | Taxom |
| Pyrrhocoridae Dohrn, 1859 | Feuerwanzen | 15 | Arten | Taxom |
| Pythidae Solier, 1834 | Drachenkäfer | 4 | Arten | Taxom |
| Radiophronidae Ortega-Blanc..., 2010 | | 2 | Arten | Taxom |
| Rangomaramidae Jaschhof & D..., 2002 | Langflügel-Pilzmücken | 1 | Art | Taxom |
| Raphidiidae Latreille, 1810 | Kamelhalsfliegen | 62 | Arten | Taxom |
| Raphidiomimidae Vishniakova, 1973 | | 7 | Arten | Taxom |
| Raphoglidae Béthoux & al., 2002 | | 1 | Art | Taxom |
| Reculidae Handlirsch, 1906 | | 1 | Art | Taxom |
| Reduviidae Latreille, 1807 | Raubwanzen | 598 | Arten | Taxom |
| Regiatidae Gorochov, 1995 | | 3 | Arten | Taxom |
| Rhachiberothidae Tjeder, 1959 | | 7 | Arten | Taxom |
| Rhaetaniidae (Krzemiń..., 2002) | | 1 | Art | Taxom |
| Rhagionemestriidae Ussatchov, 1968 | | 2 | Arten | Taxom |
| Rhagionidae Latreille, 1802 | Schnepfenfliegen | 225 | Arten | Taxom |
| Rhaphidophoridae Walker, 1869 | Buckelschrecken | 85 | Arten | Taxom |
| Rhinophoridae Robineau-Des..., 1863 | Asselfliegen | 81 | Arten | Taxom |
| Rhinotermitidae Froggatt, 1897 | Nasentermiten | 34 | Arten | Taxom |
| Rhipiceridae Latreille, 1834 | Fächerkäfer | 5 | Arten | Taxom |
| Rhipiphoridae Gemminger & ..., 1870 | Fächerkäfer | 7 | Arten | Taxom |
| Rhizoecidae Williams, 1969 | | 45 | Arten | Taxom |
| Rhopalidae Amyot & Serv..., 1843 | Glasflügelwanzen | 70 | Arten | Taxom |
| Rhopalopsyllidae Oudemans, 1909 | | 7 | Arten | Taxom |
| Rhopalosomatidae Ashmead, 1896 | | 3 | Arten | Taxom |
| Rhyacophilidae Stephens, 1836 | | 8 | Arten | Taxom |
| Rhynchitidae Gistel, 1848 | Blattstecher | 5 | Arten | Taxom |
| Rhyparochromidae Amyot & Serv..., 1843 | | 396 | Arten | Taxom |
| Rhyphidae (Newman, 1834) | | 0 | Arten | Taxom |
| Ricaniidae Amyot & Audi..., 1843 | | 50 | Arten | Taxom |
| Richardidae Snow, 1896 | | 2 | Arten | Taxom |
| Richardiidae (Snow, 1896) | | 6 | Arten | Taxom |
| Ricinidae Neumann, 1890 | | 16 | Arten | Taxom |
| Riodinidae Grote, 1895 | Würfelfalter | 235 | Arten | Taxom |
| Ripiphoridae Gemminger & ..., 1870 | Fächerkäfer | 22 | Arten | Taxom |
| Robinjohniidae Martynova, 1948 | | 1 | Art | Taxom |
| Roeslerstammiidae Bruand, 1850 | | 5 | Arten | Taxom |
| Romaleidae Brunner von ..., 1893 | Lümmelheuschrecken | 16 | Arten | Taxom |
| Ropalomeridae Linder, 1930 | | 1 | Art | Taxom |
| Roproniidae Bradley, 1905 | | 3 | Arten | Taxom |
| Rutelidae (MacLeay, 1819) | Gartenkäfer | 8 | Arten | Taxom |
| Saaloscytinidae Brauckmann, ..., 2006 | | 2 | Arten | Taxom |
| Saldidae Amyot and Se..., 1843 | Springwanzen | 112 | Arten | Taxom |
| Salpingidae Leach, 1815 | Scheinrüßler | 47 | Arten | Taxom |
| Sapygidae Latreille, 1810 | Keulenwespen | 14 | Arten | Taxom |
| Sarcophagidae Macquart, 1834 | Aasfliegen | 669 | Arten | Taxom |
| Saturniidae Boisduval, 1837 | Augenspinner | 187 | Arten | Taxom |
| Satyridae Boisduval, 1833 | Augenfalter | 1 | Art | Taxom |
| Saxonagrionidae Nel & al., 1999 | | 1 | Art | Taxom |
| Scarabaeidae Latreille, 1802 | Blatthornkäfer | 2397 | Arten | Taxom |
| Scathophagidae Robineau-Des..., 1830 | Dungfliegen | 580 | Arten | Taxom |
| Scatopsidae Newman, 1834 | Dungmücken | 214 | Arten | Taxom |
| Scelionidae Haliday, 1839 | | 824 | Arten | Taxom |
| Scenopinidae Burmeister, 1835 | Fensterfliegen | 34 | Arten | Taxom |
| Schizoblattidae Durden, 1969 | | 18 | Arten | Taxom |
| Schizocoleidae Rohdendorf, 1961 | | 4 | Arten | Taxom |
| Schizophoridae Ponomarenko, 1968 | | 7 | Arten | Taxom |
| Schizopodidae (LeConte, 1859) | | 1 | Art | Taxom |
| Schizopteridae Reuter, 1891 | | 6 | Arten | Taxom |
| Schreckensteiniidae Fletcher, 1929 | | 1 | Art | Taxom |
| Sciaridae Billberg, 1820 | Trauermücken | 162 | Arten | Taxom |
| Sciomyzidae Fallen, 1820 | Hornfliegen | 302 | Arten | Taxom |
| Scirtidae Fleming, 1821 | Sumpffieberkäfer | 179 | Arten | Taxom |
| Sclerogibbidae Ashmead, 1902 | | 7 | Arten | Taxom |
| Scolebythidae Evans, 1963 | | 10 | Arten | Taxom |
| Scoliidae Leach, 1815 | Dolchwespen | 40 | Arten | Taxom |
| Scolytidae (Latreille, 1807) | Borkenkäfer | 2 | Arten | Taxom |
| Scraptiidae Mulsant, 1856 | Scheinstachelkäfer | 104 | Arten | Taxom |
| Scutelleridae Leach, 1815 | Schildwanzen | 83 | Arten | Taxom |
| Scydmaenidae (Leach, 1815) | Ameisenkäfer | 968 | Arten | Taxom |
| Scythrididae Rebel, 1901 | Heidefalter | 22 | Arten | Taxom |
| Scytinopteridae Handlirsch, 1906 | | 2 | Arten | Taxom |
| Selenothemistidae Handlirsch, 1939 | | 2 | Arten | Taxom |
| Sepsidae Walker, 1833 | Schwingfliegen | 108 | Arten | Taxom |
| Sepulcidae Rasnitsyn, 1968 | | 4 | Arten | Taxom |
| Serafinidae Koteja, 2008 | | 1 | Art | Taxom |
| Serendipidae Evenhuis, 1994 | | 0 | Arten | Taxom |
| Sericostomatidae Stephens, 1836 | | 52 | Arten | Taxom |
| Serpentivenidae Shcherbakov, 1984 | | 4 | Arten | Taxom |
| Serphitidae Brues, 1937 | | 8 | Arten | Taxom |
| Sesiidae Boisduval, 1828 | Glasflügler | 293 | Arten | Taxom |
| Shaposhnikoviidae Kononova, 1976 | | 1 | Art | Taxom |
| Sharephemeridae Sinitshenkova, 2002 | | 1 | Art | Taxom |
| Sialidae Leach, 1815 | Schlammfliegen | 19 | Arten | Taxom |
| Siberioperlidae Sinitshenkova, 1983 | | 2 | Arten | Taxom |
| Sieblosiidae Handlirsch, 1906 | | 17 | Arten | Taxom |
| Sierolomorphidae Krombein, 1951 | | 2 | Arten | Taxom |
| Signiphoridae Howard, 1894 | | 15 | Arten | Taxom |
| Silphidae Latreille, 1807 | Aaskäfer | 148 | Arten | Taxom |
| Silvanidae Kirby, 1837 | Plattkäfer | 74 | Arten | Taxom |
| Simuliidae Newman, 1834 | Kriebelmücken | 710 | Arten | Taxom |
| Siphlonuridae Banks, 1900 | | 44 | Arten | Taxom |
| Siricidae Billberg, 1820 | Holzwespen | 50 | Arten | Taxom |
| Sisyridae Handlirsch, 1908 | Schwammfliegen | 14 | Arten | Taxom |
| Sisyrocoridae Handlirsch, 1921 | | 6 | Arten | Taxom |
| Skaliciidae Kukalová, 1964 | | 1 | Art | Taxom |
| Smicripidae Horn, 1879 | | 2 | Arten | Taxom |
| Socialidae Vrsansky, 2010 | | 1 | Art | Taxom |
| Solenoptilidae Handlirsch, 1906 | | 2 | Arten | Taxom |
| Somabrachyidae Hampson, 1920 | | 1 | Art | Taxom |
| Spaniidae (Nagatomi, 1982) | | 2 | Arten | Taxom |
| Spanioderidae Handlirsch, 1906 | | 11 | Arten | Taxom |
| Spathiopterygidae Engel & Orte..., 2013 | | 3 | Arten | Taxom |
| Sphaeritidae Schuckard, 1839 | Scheinstutzkäfer | 2 | Arten | Taxom |
| Sphaeriusidae Erichson, 1845 | Kugelkäfer | 9 | Arten | Taxom |
| Sphaeroceridae Macquart, 1835 | Dungfliegen | 827 | Arten | Taxom |
| Sphaeropsocidae Kolbe, 1883 | | 2 | Arten | Taxom |
| Sphecidae Latreille, 1802 | Grabwespen | 293 | Arten | Taxom |
| Sphecopteridae Carpenter, 1951 | | 6 | Arten | Taxom |
| Sphenophlebiidae Bechly, 1997 | | 6 | Arten | Taxom |
| Sphindidae Jacquelin du..., 1860 | Schleimpilzkäfer | 8 | Arten | Taxom |
| Sphingidae Latreille, 1802 | Schwärmer | 324 | Arten | Taxom |
| Spilapteridae Brongniart, 1894 | | 14 | Arten | Taxom |
| Spiloblattinidae Handlirsch, 1906 | | 34 | Arten | Taxom |
| Spongiphoridae Verhoeff, 1902 | | 3 | Arten | Taxom |
| Staphylinidae Lameere, 1900 | Halbflügler | 9354 | Arten | Taxom |
| Steingeliidae Morrison, 1927 | | 4 | Arten | Taxom |
| Steleopteridae Handlirsch, 1906 | | 5 | Arten | Taxom |
| Stenoneuridae Handlirsch, 1906 | | 0 | Arten | Taxom |
| Stenopelmatidae Burmeister, 1838 | | 2 | Arten | Taxom |
| Stenophlebiidae Needham, 1903 | | 11 | Arten | Taxom |
| Stenopsocidae Pearman, 1936 | | 7 | Arten | Taxom |
| Stenopsychidae Martynov, 1924 | | 4 | Arten | Taxom |
| Stenotrachelidae C. G. Thomson, 1859 | | 7 | Arten | Taxom |
| Stephanastidae Kirejtshuk &..., 2013 | | 1 | Art | Taxom |
| Stephanidae Leach, 1815 | | 10 | Arten | Taxom |
| Stigmaphronidae Kozlov, 1975 | | 11 | Arten | Taxom |
| Stivaliidae Mardon, 1978 | | 1 | Art | Taxom |
| Stolamissidae Liu & Engel, 2007 | | 1 | Art | Taxom |
| Straeleniellidae Laurentiaux-..., 1986 | | 1 | Art | Taxom |
| Stratiomyidae Latreille, 1802 | Waffenfliegen | 460 | Arten | Taxom |
| Streblidae (Kolenati, 1863) | | 18 | Arten | Taxom |
| Strephocladidae Martynov, 1938 | | 4 | Arten | Taxom |
| Strongylophthalmyiidae Hennig, 1940 | | 4 | Arten | Taxom |
| Stygnidae Handlirsch, 1906 | | 1 | Art | Taxom |
| Stylopidae Kirby, 1813 | | 92 | Arten | Taxom |
| Sylvabestiidae Aristov, 2000 | | 5 | Arten | Taxom |
| Sylvaphlebiidae Martynov, 1940 | | 4 | Arten | Taxom |
| Synarmogidae Handlirsch, 1910 | | 1 | Art | Taxom |
| Synchroidae Lacordaire, 1859 | | 1 | Art | Taxom |
| Synteliidae Lewis, 1882 | | 6 | Arten | Taxom |
| Synthemidae (Tillyard, 1917) | | 5 | Arten | Taxom |
| Synthemistidae Tillyard, 1917 | | 1 | Art | Taxom |
| Syntonopteridae Handlirsch, 1911 | | 1 | Art | Taxom |
| Syrphidae Latreille, 1802 | Larven: Blattlaus-Löwen | 2084 | Arten | Taxom |
| Tabanidae Latreille, 1802 | Bremsen | 647 | Arten | Taxom |
| Tachardiidae Green, 1896 | | 2 | Arten | Taxom |
| Tachinidae (Robineau-Des..., 1830) | Raupenfliegen | 2775 | Arten | Taxom |
| Taeniopterygidae Klapálek, 1905 | | 71 | Arten | Taxom |
| Tajmyraphididae Kononova, 1975 | | 1 | Art | Taxom |
| Tanaostigmatidae Howard, 1890 | | 2 | Arten | Taxom |
| Tanyderidae Alexander, 1919 | | 9 | Arten | Taxom |
| Tanypezidae Rondani, 1856 | Streckfußfliegen | 2 | Arten | Taxom |
| Tarachodidae Handlirsch, 1930 | | 1 | Art | Taxom |
| Tarsophlebiidae Handlirsch, 1906 | | 3 | Arten | Taxom |
| Tasimiidae Riek, 1968 | | 1 | Art | Taxom |
| Tcholmanvissiidae Zalessky, 1934 | | 3 | Arten | Taxom |
| Tenebrionidae Latreille, 1802 | Dunkelkäfer | 1919 | Arten | Taxom |
| Tenthredinidae Latreille, 1804 | Blattwespen | 2255 | Arten | Taxom |
| Tephritidae Newman, 1834 | Bohrfliegen | 666 | Arten | Taxom |
| Teratembiidae Krauss, 1911 | | 1 | Art | Taxom |
| Teratomyzidae Hennig, 1969 | | 0 | Arten | Taxom |
| Teredidae Seidlitz, 1888 | | 107 | Arten | Taxom |
| Termitaphididae Myers, 1924 | | 5 | Arten | Taxom |
| Termitidae Latreille, 1802 | Höhere Termiten | 74 | Arten | Taxom |
| Termopsidae Grassé, 1949 | Feuchtholztermiten | 8 | Arten | Taxom |
| Tessaratomidae Stål, 1864 | | 48 | Arten | Taxom |
| Tethepomyiidae Grimaldi & A..., 2008 | | 1 | Art | Taxom |
| Tethinidae (Hendel, 1916) | | 60 | Arten | Taxom |
| Tetracampidae Förster, 1856 | | 17 | Arten | Taxom |
| Tetratomidae Billberg, 1820 | Keulendüsterkäfer | 22 | Arten | Taxom |
| Tetrigidae Rambur, 1838 | Dornschrecken | 80 | Arten | Taxom |
| Tettigarctidae Distant, 1905 | | 11 | Arten | Taxom |
| Tettigometridae Germar, 1821 | Ameisenzikaden | 60 | Arten | Taxom |
| Tettigoniidae Krauss, 1902 | Laubheuschrecken | 1031 | Arten | Taxom |
| Tettoedischiidae Gorochov, 1987 | | 1 | Art | Taxom |
| Thanerocleridae Chapin, 1921 | | 3 | Arten | Taxom |
| Thaumaleidae Bezzi, 1913 | Dunkelmücken | 90 | Arten | Taxom |
| Thaumastellidae Štys, 1864 | | 1 | Art | Taxom |
| Thaumastocoridae Kirkaldy, 1908 | | 9 | Arten | Taxom |
| Thaumatoneuridae Fraser, 1957 | | 9 | Arten | Taxom |
| Therevidae Newman, 1834 | Dolchfliegen | 202 | Arten | Taxom |
| Thericleidae Burr, 1899 | | 1 | Art | Taxom |
| Thespidae Giglio-Tos, 1919 | | 2 | Arten | Taxom |
| Thoronysididae Handlirsch, 1919 | | 1 | Art | Taxom |
| Thripidae Stevens, 1829 | Blasenfüßer | 521 | Arten | Taxom |
| Throscidae Laporte, 1840 | Hüpfkäfer | 62 | Arten | Taxom |
| Thueringoedischiidae Zessin, 1997 | | 2 | Arten | Taxom |
| Thynnidae Shuckard, 1841 | | 24 | Arten | Taxom |
| Thyreocoridae Amyot and Se..., 1843 | | 9 | Arten | Taxom |
| Thyrididae Herrich-Schä..., 1846 | Fensterfleckchen | 19 | Arten | Taxom |
| Tibicinidae (Distant, 1905) | | 1 | Art | Taxom |
| Timematidae Caudell, 1903 | | 1 | Art | Taxom |
| Tineidae Latreille, 1810 | Echte Motten | 654 | Arten | Taxom |
| Tingidae Laporte, 1832 | Blasenwanzen | 616 | Arten | Taxom |
| Tintorinidae Krzeminski &..., 2001 | | 1 | Art | Taxom |
| Tiphiidae Leach, 1815 | Rollwespen | 59 | Arten | Taxom |
| Tipulidae Latreille, 1802 | Bachmücken | 2602 | Arten | Taxom |
| Tischeriidae Spuler, 1898 | Schopfstirnfalter | 34 | Arten | Taxom |
| Tococladidae Carpenter, 1966 | | 1 | Art | Taxom |
| Tortricidae Latreille, 1803 | Blattroller | 2237 | Arten | Taxom |
| Torymidae Walker, 1833 | Erzwespen | 407 | Arten | Taxom |
| Toxodotidae Sinitshenkov..., 2005 | | 1 | Art | Taxom |
| Trachypachidae C. G. Thomson, 1857 | | 16 | Arten | Taxom |
| Triadocupedidae (Ponomarenko, 1966) | | 1 | Art | Taxom |
| Triadotypidae Grauvogel & ..., 1952 | | 4 | Arten | Taxom |
| Triassoblattidae Durden, 1969 | | 0 | Arten | Taxom |
| Triassocoridae Tillyard, 1922 | | 1 | Art | Taxom |
| Triassoephemeridae Sinitshenkov..., 2005 | | 1 | Art | Taxom |
| Triassolestidae Bonaparte, 1970 | | 6 | Arten | Taxom |
| Triassomanthidae Sinitshenkov..., 2005 | | 1 | Art | Taxom |
| Trichoceridae Rondani, 1841 | Wintermücken | 269 | Arten | Taxom |
| Trichodectidae Kellogg, 1896 | | 76 | Arten | Taxom |
| Trichogrammatidae Haliday, 1851 | | 180 | Arten | Taxom |
| Trichopsocidae Pearman, 1936 | | 11 | Arten | Taxom |
| Tricorythidae Lestage, 1942 | | 2 | Arten | Taxom |
| Tridactylidae Saussure, 1874 | Grabschrecken | 14 | Arten | Taxom |
| Trigonalidae (Cresson, 1887) | Leistenwespen | 5 | Arten | Taxom |
| Trigonalyidae | | 2 | Arten | Taxom |
| Trigonidiidae (Saussure, 1870) | | 47 | Arten | Taxom |
| Trimenoponidae Harrison, 1916 | | 1 | Art | Taxom |
| Triozidae Löw, 1879 | | 80 | Arten | Taxom |
| Triplosobidae Handlirsch, 1906 | | 1 | Art | Taxom |
| Trogidae (MacLeay, 1819) | Erdkäfer | 53 | Arten | Taxom |
| Trogiidae Enderlein, 1903 | Staubläuse | 47 | Arten | Taxom |
| Trogossitidae Latreille, 1802 | Flachkäfer | 73 | Arten | Taxom |
| Tropiduchidae Stål, 1866 | Mückenzikaden | 44 | Arten | Taxom |
| Tshekardocoleidae Rohdendorf, 1944 | | 13 | Arten | Taxom |
| Tuphellidae Gorochov, 1988 | | 1 | Art | Taxom |
| Uenoidae Iwata, 1927 | | 6 | Arten | Taxom |
| Ulidiidae Macquart, 1835 | Metallfliegen | 34 | Arten | Taxom |
| Ulopidae (Le Peletier ..., 1825) | | 8 | Arten | Taxom |
| Umenocoleidae Chen & Tian, 1973 | | 5 | Arten | Taxom |
| Uraniidae Blanchard, 1845 | Uraniafalter | 16 | Arten | Taxom |
| Urodidae Kyrki, 1984 | | 1 | Art | Taxom |
| Urostylidae (Dallas, 1851) | | 5 | Arten | Taxom |
| Urothemistidae Lieftinck, 1954 | | 1 | Art | Taxom |
| Valdicorduliidae Bechly, 1996 | | 1 | Art | Taxom |
| Vanhorniidae Crawford, 1909 | | 2 | Arten | Taxom |
| Veliidae Amyot & Serv..., 1843 | Bachläufer | 63 | Arten | Taxom |
| Velocipedidae Bergroth, 1891 | | 1 | Art | Taxom |
| Vermileonidae Williston, 1886 | Wurmlöwen | 10 | Arten | Taxom |
| Vermipsyllidae Wagner, 1889 | | 11 | Arten | Taxom |
| Vesperidae Mulsant, 1839 | | 20 | Arten | Taxom |
| Vespidae Leach, 1815 | Echte Wespen | 612 | Arten | Taxom |
| Vitimiidae Sharov, 1968 | | 2 | Arten | Taxom |
| Vitimotauliidae Sukatsheva, 1968 | | 4 | Arten | Taxom |
| Vogesonymphidae Sinitshenkov..., 2005 | | 2 | Arten | Taxom |
| Voltziaephemeridae Sinitshenkov..., 2005 | | 1 | Art | Taxom |
| Voltzialestidae Bechly, 1996 | | 1 | Art | Taxom |
| Vorkutiidae Rohdendorf, 1947 | | 1 | Art | Taxom |
| Weitschatidae Koteja, 2008 | | 2 | Arten | Taxom |
| Westphalopsocidae Azar & al., 2013 | | 1 | Art | Taxom |
| Westphalothripidesidae Nel, Azar, ..., 2012 | | 1 | Art | Taxom |
| Xenasteiidae Hardy, 1980 | | 1 | Art | Taxom |
| Xenidae Pohl & Beutel, 2005 | | 17 | Arten | Taxom |
| Xenoblattidae Durden, 1969 | | 11 | Arten | Taxom |
| Xenopteridae Riek, 1955 | | 1 | Art | Taxom |
| Xiphocentronidae Schmid, 1982 | | 1 | Art | Taxom |
| Xiphydriidae Leach, 1819 | Schwertwespen | 16 | Arten | Taxom |
| Xyelidae Newman, 1835 | Urblattwespen | 28 | Arten | Taxom |
| Xyelotomidae Rasnitsyn, 1968 | | 6 | Arten | Taxom |
| Xyelydidae Rasnitsyn, 1968 | | 1 | Art | Taxom |
| Xylococcidae (Pergrande, 1898) | | 6 | Arten | Taxom |
| Xylomyidae Verrall, 1901 | Holz-Waffenfliegen | 19 | Arten | Taxom |
| Xylophagidae Fallen, 1810 | Holzfliegen | 25 | Arten | Taxom |
| Xyloryctidae Meyrick, 1890 | | 230 | Arten | Taxom |
| Yponomeutidae Stephens, 1829 | Gespinst- und Knospenmotten | 255 | Arten | Taxom |
| Ypsolophidae Guenée, 1845 | Knospenmotten | 69 | Arten | Taxom |
| Zhangsolvidae Nagatomi & Yang, 1998 | | 2 | Arten | Taxom |
| Zopheridae Solier, 1834 | Rindenkäfer | 182 | Arten | Taxom |
| Zorotypidae Silvestri, 1913 | | 1 | Art | Taxom |
| Zygaenidae Latreille, 1809 | Blutströpfchen | 195 | Arten | Taxom |
