| Acmaeoblattidae Durden, 1969 | | 2 | Species | Taxom |
| Ademosynidae Ponomarenko, 1968 | | 3 | Species | Taxom |
| Adumbratomorphidae Gorochov, 1987 | | 1 | Species | Taxom |
| Aenigmatidiidae Rohdendorf, 1961 | | 1 | Species | Taxom |
| Alectoneuridae Kukalova-Peck, 1975 | | 1 | Species | Taxom |
| Alexarasniidae Gorochov, 2011 | | 2 | Species | Taxom |
| Alexrasnitsyniidae Prokop & Nel, 2011 | | 1 | Species | Taxom |
| Aleyrodidae Westwood, 1840 | Whiteflies | 1 | Species | Taxom |
| Ancopteridae Kukalova-Peck, 1975 | | 1 | Species | Taxom |
| Anelcanidae Carpenter, 1986 | | 2 | Species | Taxom |
| Anomalogrammatidae Carpenter, 1943 | | 1 | Species | Taxom |
| Anormochoristidae Tillyard, 1926 | | 1 | Species | Taxom |
| Anthracoblattinidae Durden, 1969 | | 16 | Species | Taxom |
| Anthracoptilidae Handlirsch, 1922 | | 18 | Species | Taxom |
| Apachelytridae Carpenter & ..., 1964 | | 1 | Species | Taxom |
| Apheloneuridae Carpenter, 1976 | | 3 | Species | Taxom |
| Appertiidae Paulian, 1965 | | 1 | Species | Taxom |
| Apsidoneuridae Carpenter, 1961 | | 1 | Species | Taxom |
| Archelytridae Carpenter, 1933 | | 2 | Species | Taxom |
| Archeorhinotermitidae Krishna & Gr..., 2003 | | 1 | Species | Taxom |
| Archeosmylidae Riek, 1953 | | 1 | Species | Taxom |
| Archescytinidae Tillyard, 1926 | | 58 | Species | Taxom |
| Archimylacridae Handlirsch, 1906 | | 96 | Species | Taxom |
| Archiprobnidae Sharov, 1961 | | 3 | Species | Taxom |
| Archisialidae Martynov, 1933 | | 1 | Species | Taxom |
| Archoglossopteridae Martynova, 1958 | | 1 | Species | Taxom |
| Arcioneuridae Kukalova-Peck, 1975 | | 2 | Species | Taxom |
| Asilidae Latreille, 1802 | Assassin flies | 2 | Species | Taxom |
| Asiocoleidae Rohdendorf, 1961 | | 4 | Species | Taxom |
| Asiuropidae Novokshonov, 1997 | | 1 | Species | Taxom |
| Aspidohymenidae Martynov, 1930 | | 2 | Species | Taxom |
| Asthenohymenidae Tillyard, 1924 | | 14 | Species | Taxom |
| Atactophlebiidae Martynov, 1930 | | 7 | Species | Taxom |
| Bajanzhargalanidae Storozhenko, 1992 | | 2 | Species | Taxom |
| Bardocoleidae Zalessky, 1947 | | 2 | Species | Taxom |
| Bardohymenidae Zalessky, 1937 | | 12 | Species | Taxom |
| Batkeniidae Pritykina, 1981 | | 1 | Species | Taxom |
| Belmontiidae Tillyard, 1919 | | 1 | Species | Taxom |
| Biarmohymenidae Zalessky, 1937 | | 2 | Species | Taxom |
| Blaberidae Saussure, 1864 | Blaberids | 2 | Species | Taxom |
| Blattidae Stephens, 1829 | American cockroaches | 1 | Species | Taxom |
| Blattinopsidae Bolton, 1925 | | 23 | Species | Taxom |
| Blattogryllidae Rasnitsyn, 1976 | | 5 | Species | Taxom |
| Boreoscytidae Becker-Migdi..., 1949 | | 3 | Species | Taxom |
| Bouretidae Martins-Neto, 2001 | | 1 | Species | Taxom |
| Bradyblattidae Durden, 1969 | | 8 | Species | Taxom |
| Buprestidae Leach, 1815 | Flat-headed wood-borers | 1 | Species | Taxom |
| Byrrhidae Latreille, 1804 | Moss beetles | 1 | Species | Taxom |
| Cacurgidae Handlirsch, 1911 | | 3 | Species | Taxom |
| Caliscelidae Amyot & Serv..., 1843 | Piglet Bugs | 1 | Species | Taxom |
| Callimokaltaniidae Zalessky, 1955 | | 1 | Species | Taxom |
| Caloneuridae Handlirsch, 1906 | | 6 | Species | Taxom |
| Calvertiellidae Martynov, 1931 | | 5 | Species | Taxom |
| Campterophlebiidae Handlirsch, 1920 | | 1 | Species | Taxom |
| Camptoneuritidae Martynov, 1930 | | 2 | Species | Taxom |
| Camptotaxineuridae Tillyard, 1937 | | 1 | Species | Taxom |
| Carabidae Latreille, 1802 | Carabid beetles | 3 | Species | Taxom |
| Caulopteridae Kukalova-Peck, 1975 | | 1 | Species | Taxom |
| Cecidomyiidae Newman, 1834 | Forest Midges | 1 | Species | Taxom |
| Cerambycidae Latreille, 1802 | Long Horn beetles | 2 | Species | Taxom |
| Chaulioditidae Handlirsch, 1908 | | 7 | Species | Taxom |
| Chironomidae Erichson, 1842 | Chironomids | 2 | Species | Taxom |
| Chloroperlidae Okamoto, 1912 | Green stoneflies | 1 | Species | Taxom |
| Chloropidae Schoenherr, 1840 | Chloropid flies | 1 | Species | Taxom |
| Chrysomelidae Latreille, 1802 | Casebearers | 3 | Species | Taxom |
| Cicadidae Westwood, 1840 | Cicada | 1 | Species | Taxom |
| Cicadopsyllidae Martynov, 1931 | | 1 | Species | Taxom |
| Cixiidae Spinola, 1839 | Cixid planthoppers | 37 | Species | Taxom |
| Cladochoristidae Tillyard, 1926 | | 3 | Species | Taxom |
| Cnemidolestidae Handlirsch, 1906 | | 3 | Species | Taxom |
| Coleopsidae Kirejtshuk &..., 2016 | | 1 | Species | Taxom |
| Coleoscytidae Martynov, 1935 | | 8 | Species | Taxom |
| Corixidae Leach, 1815 | Lesser Water-Boatman | 1 | Species | Taxom |
| Crabronidae Latreille, 1802 | Bee Wolves | 1 | Species | Taxom |
| Curculionidae Latreille, 1802 | Ambrosia beetles | 2 | Species | Taxom |
| Cycloristidae Martynova, 1958 | | 2 | Species | Taxom |
| Cymbopsidae Kukalová, 1965 | | 1 | Species | Taxom |
| Dasyleptidae Sharov, 1957 | | 5 | Species | Taxom |
| Deinotitanidae Gorochov, 2011 | | 1 | Species | Taxom |
| Delopteridae Sellards, 1909 | | 1 | Species | Taxom |
| Delphacidae Leach, 1815 | Delphacid planthoppers | 87 | Species | Taxom |
| Demopteridae Carpenter, 1950 | | 1 | Species | Taxom |
| Dermelytridae Kukalová, 1966 | | 4 | Species | Taxom |
| Diathemidae Sinichenkova, 1980 | | 3 | Species | Taxom |
| Dictyoneuridae Handlirsch, 1906 | | 3 | Species | Taxom |
| Ditaxineuridae Tillyard, 1926 | | 3 | Species | Taxom |
| Doubraviidae Aristov, 2015 | | 3 | Species | Taxom |
| Dunstaniidae Tillyard, 1916 | | 4 | Species | Taxom |
| Dysmorphoptilidae Handlirsch, 1906 | | 2 | Species | Taxom |
| Elateridae Leach, 1815 | Click Beetle | 2 | Species | Taxom |
| Elmoboriidae Carpenter, 1977 | | 2 | Species | Taxom |
| Elmoidae Tillyard, 1937 | | 2 | Species | Taxom |
| Elytroneuridae Carpenter, 1933 | | 1 | Species | Taxom |
| Engisopteridae Kukalova-Peck, 1975 | | 1 | Species | Taxom |
| Eolocustopsidae Riek, 1976 | | 1 | Species | Taxom |
| Eoscartarellidae | | 1 | Species | Taxom |
| Eoscarterellidae Evans, 1956 | | 1 | Species | Taxom |
| Ephemeridae Leach, 1817 | Burrowing mayflies | 2 | Species | Taxom |
| Epideigmatidae Handlirsch, 1911 | | 4 | Species | Taxom |
| Erebidae Leach, 1815 | Erebid Moths | 2 | Species | Taxom |
| Eukulojidae Sinitshenkova, 1981 | | 5 | Species | Taxom |
| Euremiscidae Zalesskii, 1951 | | 1 | Species | Taxom |
| Euryptilonidae Martynov, 1940 | | 19 | Species | Taxom |
| Eustheniidae Tillyard, 1921 | | 4 | Species | Taxom |
| Euthygrammatidae Martynov, 1928 | | 1 | Species | Taxom |
| Euxenoperlidae Riek, 1976 | | 4 | Species | Taxom |
| Flatidae Spinola, 1839 | Flatid planthoppers | 4 | Species | Taxom |
| Forficulidae Stephens, 1829 | Common Earwig | 1 | Species | Taxom |
| Geinitziidae Handlirsch, 1906 | | 9 | Species | Taxom |
| Gelasopteridae Carpenter, 1976 | | 1 | Species | Taxom |
| Geraridae Scudder, 1885 | | 1 | Species | Taxom |
| Glosselytridae Martynov, 1938 | | 11 | Species | Taxom |
| Glossopteridae Sharov, 1966 | | 1 | Species | Taxom |
| Gryllacrididae Blanchard, 1845 | Camel Crickets | 2 | Species | Taxom |
| Hanidae Kukalova-Peck, 1975 | | 2 | Species | Taxom |
| Hapalopteridae Handlirsch, 1906 | | 1 | Species | Taxom |
| Havlatiidae Kukalová, 1964 | | 2 | Species | Taxom |
| Hemizygopteridae Zalessky, 1955 | | 2 | Species | Taxom |
| Heteroptilidae Carpenter, 1977 | | 1 | Species | Taxom |
| Homoeodictyidae Martynov, 1937 | | 1 | Species | Taxom |
| Huangiopteridae Prokop & al., 2015 | | 1 | Species | Taxom |
| Hydrophilidae Latreille, 1802 | Silver Water Beetles | 3 | Species | Taxom |
| Hylicellidae Evans, 1956 | | 1 | Species | Taxom |
| Hypoperlidae Martynov, 1928 | | 2 | Species | Taxom |
| Hystrichopsyllidae Tiraboschi, 1904 | Insectivore fleas | 2 | Species | Taxom |
| Ichneumonidae Latreille, 1802 | Ichneumon flies | 1 | Species | Taxom |
| Ideliidae (Zalessky, 1929) | | 33 | Species | Taxom |
| Idelinellidae Storozhenko, 1997 | | 7 | Species | Taxom |
| Ignotalidae Riek, 1973 | | 5 | Species | Taxom |
| Ingruidae Becker-Migdi..., 1960 | | 9 | Species | Taxom |
| Ipsviciidae Tillyard, 1919 | | 2 | Species | Taxom |
| Ischnoneuridae Handlirsch, 1906 | | 3 | Species | Taxom |
| Issidae Spinola, 1839 | Issid planthoppers | 2 | Species | Taxom |
| Ivapteridae Aristov, 2009 | | 1 | Species | Taxom |
| Jarmilidae Demoulin, 1970 | | 5 | Species | Taxom |
| Jurinidae Zalessky, 1929 | | 27 | Species | Taxom |
| Kaltanelmoidae Rohdendorf, 1961 | | 1 | Species | Taxom |
| Kaltanidae Martynova, 1958 | | 33 | Species | Taxom |
| Kaltanoneuridae Rohdendorf, 1961 | | 1 | Species | Taxom |
| Kargalopteridae Aristov, 2009 | | 1 | Species | Taxom |
| Kargalotypidae Zessin, 1983 | | 1 | Species | Taxom |
| Kennedyidae Tillyard, 1925 | | 16 | Species | Taxom |
| Kortshakoliidae Storozhenko, 1997 | | 2 | Species | Taxom |
| Labidelytridae Kukalova-Peck, 1987 | | 1 | Species | Taxom |
| Lapeyriidae Nel & al., 1999 | | 1 | Species | Taxom |
| Lasiosynidae Kirejtshuk, ..., 2010 | | 1 | Species | Taxom |
| Lemmatophoridae Sellards, 1909 | | 26 | Species | Taxom |
| Libellulidae Rambur, 1842 | Chasers | 1 | Species | Taxom |
| Limoniidae (Speiser, 1909) | Craneflies | 3 | Species | Taxom |
| Liomopteridae Sellards, 1909 | | 78 | Species | Taxom |
| Lithopanorpidae Carpenter, 1930 | | 2 | Species | Taxom |
| Lodeviidae Nel & al., 2012 | | 1 | Species | Taxom |
| Lophioneuridae Tillyard, 1921 | | 27 | Species | Taxom |
| Lutevanaphididae Szwedo, Lape..., 2014 | | 1 | Species | Taxom |
| Lygaeidae Schilling, 1829 | Chinch bugs | 1 | Species | Taxom |
| Mantidae Burmeister, 1838 | Mantids | 5 | Species | Taxom |
| Martynoviidae Tillyard, 1932 | | 11 | Species | Taxom |
| Megachilidae Schenk, 1860 | And Resin Bees | 1 | Species | Taxom |
| Megakhosaridae Sharov, 1961 | | 11 | Species | Taxom |
| Megalodontesidae Konow, 1897 | | 1 | Species | Taxom |
| Meganeuridae Handlirsch, 1906 | | 31 | Species | Taxom |
| Megelytridae Carpenter, 1933 | | 1 | Species | Taxom |
| Membracidae Germar, 1821 | Horned Treehoppers | 3 | Species | Taxom |
| Mesephemeridae Lameere, 1917 | | 1 | Species | Taxom |
| Mesochrysopidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Mesoedischiidae Gorochov, 1987 | | 1 | Species | Taxom |
| Mesopsychidae Tillyard, 1917 | | 16 | Species | Taxom |
| Mesorthopteridae Tillyard, 1922 | | 14 | Species | Taxom |
| Mesotitanidae Tillyard, 1925 | | 3 | Species | Taxom |
| Microptysmatidae Martynova, 1958 | | 2 | Species | Taxom |
| Miridae Hahn, 1831 | Capsid bugs | 2 | Species | Taxom |
| Misthodotidae Tillyard, 1932 | | 11 | Species | Taxom |
| Mongolodictyidae Sinichenkova, 1992 | | 1 | Species | Taxom |
| Moravohymenidae Kukalova-Peck, 1972 | | 3 | Species | Taxom |
| Mutoviidae Vršanský & A..., 2012 | | 1 | Species | Taxom |
| Mylacridae Scudder, 1886 | | 6 | Species | Taxom |
| Mythicomyiidae Melander, 1902 | Micro Bee Flies | 1 | Species | Taxom |
| Nannochoristidae Tillyard, 1917 | | 5 | Species | Taxom |
| Nanosialidae Shcherbakov, 2013 | | 5 | Species | Taxom |
| Necymylacridae Durden, 1969 | | 2 | Species | Taxom |
| Nedubroviidae Bashkuev, 2011 | | 6 | Species | Taxom |
| Neorthroblattinidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Neraphidiidae Aristov, 2014 | | 3 | Species | Taxom |
| Notonectidae Latreille, 1802 | Back Swimmers | 1 | Species | Taxom |
| Nugonioneuridae Carpenter, 1976 | | 1 | Species | Taxom |
| Oboraneuridae Zessin, 2008 | | 1 | Species | Taxom |
| Oborocoleidae Kukalová, 1968 | | 2 | Species | Taxom |
| Obrieniidae Zherikhin an..., 1994 | | 1 | Species | Taxom |
| Oedischiidae Handlirsch, 1906 | | 23 | Species | Taxom |
| Orthophlebiidae Handlirsch, 1906 | | 3 | Species | Taxom |
| Pachymeridiidae Handlirsch, 1906 | | 3 | Species | Taxom |
| Palaemerobiidae Martynov, 1928 | | 5 | Species | Taxom |
| Palaeomanteidae Handlirsch, 1906 | | 41 | Species | Taxom |
| Palaeonemouridae N.D. Siniche..., 1987 | | 35 | Species | Taxom |
| Palaeontinidae Handlirsch, 1906 | Giant cicadas | 1 | Species | Taxom |
| Palaeoperlidae Sharov, 1961 | | 10 | Species | Taxom |
| Paleoblattidae Scudder, 1879 | | 3 | Species | Taxom |
| Paleuthygrammatidae Carpenter, 1943 | | 4 | Species | Taxom |
| Paraknightiidae Evans, 1950 | | 3 | Species | Taxom |
| Paralogidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Parasialidae Ponomarenko, 1977 | | 5 | Species | Taxom |
| Parelmoidae Rohdendorf, 1962 | | 7 | Species | Taxom |
| Parmapteridae Aristov & Ra..., 2015 | | 1 | Species | Taxom |
| Paruraliidae Kukalova-Pec..., 1992 | | 2 | Species | Taxom |
| Paucineuridae Hong, 1980 | | 1 | Species | Taxom |
| Pelecinidae Haliday, 1839 | Ancestral And Modern Pelecinid Wasps | 1 | Species | Taxom |
| Pentatomidae Leach, 1815 | Lesser shield bugs | 1 | Species | Taxom |
| Pereboriidae Zalessky, 1930 | | 7 | Species | Taxom |
| Perforissidae Shcherbakov, 2007 | | 1 | Species | Taxom |
| Perielytridae Zalessky, 1948 | | 3 | Species | Taxom |
| Perlapsocidae Iraja Pinto ..., 2000 | | 1 | Species | Taxom |
| Perlidae (Latreille, 1802) | Common stoneflies | 1 | Species | Taxom |
| Perlopseidae Martynov, 1940 | | 3 | Species | Taxom |
| Permaeschnidae Martynov, 1931 | | 2 | Species | Taxom |
| Permagrionidae Tillyard, 1928 | | 10 | Species | Taxom |
| Permaleurodidae Becker-Migdi..., 1959 | | 1 | Species | Taxom |
| Permaphidopseidae Becker-Migdi..., 1960 | | 2 | Species | Taxom |
| Permarrhaphidae Martynov, 1930 | | 1 | Species | Taxom |
| Permelcanidae Sharov, 1962 | | 7 | Species | Taxom |
| Permelytridae Tillyard, 1931 | | 7 | Species | Taxom |
| Permembiidae Tillyard, 1937 | | 7 | Species | Taxom |
| Permepallagidae Martynov, 1938 | | 1 | Species | Taxom |
| Permithonidae Tillyard, 1922 | | 48 | Species | Taxom |
| Permoberothidae Tillyard, 1932 | | 1 | Species | Taxom |
| Permobiellidae Tillyard, 1937 | | 1 | Species | Taxom |
| Permocentropidae Martynov, 1932 | | 1 | Species | Taxom |
| Permochoristidae Tillyard, 1918 | | 147 | Species | Taxom |
| Permocupedidae Martynov, 1933 | | 35 | Species | Taxom |
| Permofulgoridae Tillyard, 1917 | | 1 | Species | Taxom |
| Permopanorpidae Tillyard, 1926 | | 6 | Species | Taxom |
| Permopectinidae Aristov, 2005 | | 3 | Species | Taxom |
| Permophasmatidae Gorochov, 1992 | | 5 | Species | Taxom |
| Permophilidae Tillyard, 1924 | | 5 | Species | Taxom |
| Permophlebiidae Nel & al., 2001 | | 2 | Species | Taxom |
| Permopsocidae Tillyard, 1926 | | 5 | Species | Taxom |
| Permoraphidiidae Tillyard, 1932 | | 3 | Species | Taxom |
| Permosialidae Martynov, 1928 | | 27 | Species | Taxom |
| Permosynidae Tillyard, 1924 | | 13 | Species | Taxom |
| Permotanyderidae Riek, 1953 | | 2 | Species | Taxom |
| Permotermopsidae Martuinov, 1937 | | 5 | Species | Taxom |
| Permothemidae Martynov, 1935 | | 2 | Species | Taxom |
| Permothemistidae Sinichenkova, 1980 | | 2 | Species | Taxom |
| Permotipulidae Tillyard, 1929 | | 2 | Species | Taxom |
| Permulidae Aristov & St..., 2011 | | 2 | Species | Taxom |
| Personidae Gray, 1854 | | 1 | Species | Taxom |
| Petrablattinidae Durden, 1969 | | 7 | Species | Taxom |
| Phenopteridae Carpenter, 1950 | | 1 | Species | Taxom |
| Philopotamidae Stephens, 1829 | Finger Net caddisflies | 1 | Species | Taxom |
| Pholidoptilidae Zalessky, 1931 | | 1 | Species | Taxom |
| Phoridae Curtis, 1833 | Coffin Flies | 1 | Species | Taxom |
| Pincombeidae Tillyard, 1922 | | 6 | Species | Taxom |
| Pinideliidae Storozhenko, 1997 | | 2 | Species | Taxom |
| Planelytridae Kukalová, 1965 | | 1 | Species | Taxom |
| Polytaxineuridae Tillyard, 1935 | | 1 | Species | Taxom |
| Ponopterixidae Nel & al., 2014 | | 2 | Species | Taxom |
| Poroblattinidae Handlirsch, 1906 | | 6 | Species | Taxom |
| Probnidae Sellards, 1909 | | 2 | Species | Taxom |
| Proedischiidae Pinto & Orne..., 1978 | | 3 | Species | Taxom |
| Progonocimicidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Prohemerobiidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Proparagryllacrididae Riek, 1956 | | 1 | Species | Taxom |
| Prophalangopsidae Saussure, 1878 | Grigs | 2 | Species | Taxom |
| Prorhyacophilidae Riek, 1955 | | 1 | Species | Taxom |
| Prosbolidae Handlirsch, 1906 | | 113 | Species | Taxom |
| Prosbolopseidae Becker-Migdi..., 1946 | | 16 | Species | Taxom |
| Prosopistomatidae Lameere, 1917 | | 11 | Species | Taxom |
| Protelytridae Tillyard, 1931 | | 5 | Species | Taxom |
| Protembiidae Tillyard, 1937 | | 24 | Species | Taxom |
| Protereismatidae Lameere, 1917 | | 18 | Species | Taxom |
| Proteremidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Protocoleidae Tillyard, 1924 | | 7 | Species | Taxom |
| Protohymenidae Tillyard, 1924 | | 23 | Species | Taxom |
| Protomeropidae Tillyard, 1926 | | 16 | Species | Taxom |
| Protomyrmeleontidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Protophasmatidae Brongniart, 1885 | | 1 | Species | Taxom |
| Protopsyllidiidae Becker-Migdi..., 1960 | | 24 | Species | Taxom |
| Pruvostitidae Zalessky, 1929 | | 26 | Species | Taxom |
| Prygidae Aristov & Ra..., 2014 | | 2 | Species | Taxom |
| Pseudelcanidae Gorochov, 1987 | | 2 | Species | Taxom |
| Pseudonannochoristidae Novokshonov, 1994 | | 2 | Species | Taxom |
| Psocidiidae Tillyard, 1926 | | 12 | Species | Taxom |
| Psoropteridae Carpenter, 1977 | | 1 | Species | Taxom |
| Pteridomylacridae Handlirsch, 1906 | | 9 | Species | Taxom |
| Raaschiidae Beckemeyer, 2004 | | 1 | Species | Taxom |
| Raphoglidae Béthoux & al., 2002 | | 1 | Species | Taxom |
| Rhinotermitidae Froggatt, 1897 | Subterranean termites | 1 | Species | Taxom |
| Rhombocoleidae Rohdendorf, 1961 | | 23 | Species | Taxom |
| Robinjohniidae Martynova, 1948 | | 1 | Species | Taxom |
| Saxonagrionidae Nel & al., 1999 | | 1 | Species | Taxom |
| Scalicidae Kukalová, 1964 | | 1 | Species | Taxom |
| Scarabaeidae Latreille, 1802 | Dung beetles | 1 | Species | Taxom |
| Scelionidae Haliday, 1839 | Scelionid wasps | 2 | Species | Taxom |
| Schizoblattidae Durden, 1969 | | 2 | Species | Taxom |
| Schizocoleidae Rohdendorf, 1961 | | 56 | Species | Taxom |
| Schizophoridae Ponomarenko, 1968 | | 2 | Species | Taxom |
| Scytinopteridae Handlirsch, 1906 | | 24 | Species | Taxom |
| Scytohymenidae Martynov, 1937 | | 5 | Species | Taxom |
| Sharephemeridae Sinitshenkova, 2002 | | 1 | Species | Taxom |
| Sheimiidae Martynova, 1958 | | 7 | Species | Taxom |
| Sialidopsidae Zalesskii, 1926 | | 5 | Species | Taxom |
| Simulaphididae Shcherbakov, 2007 | | 1 | Species | Taxom |
| Skaliciidae Kukalová, 1964 | | 7 | Species | Taxom |
| Sojanocoleidae Martynov, 1932 | | 1 | Species | Taxom |
| Sojanoperidae Novokshonov, 2002 | | 1 | Species | Taxom |
| Sojanoraphidiidae Martynova, 1952 | | 4 | Species | Taxom |
| Soyaniidae Shcherbakov, 2015 | | 1 | Species | Taxom |
| Soyanopteridae Aristov & Ra..., 2011 | | 3 | Species | Taxom |
| Spilapteridae Brongniart, 1894 | | 7 | Species | Taxom |
| Spiloblattidae Handlirsch, 1904 | | 5 | Species | Taxom |
| Spiloblattinidae Handlirsch, 1906 | | 38 | Species | Taxom |
| Stenelytridae Kukalová, 1966 | | 1 | Species | Taxom |
| Stenoviciidae Evans, 1956 | | 7 | Species | Taxom |
| Stereopteridae Carpenter, 1950 | | 3 | Species | Taxom |
| Stigmaphronidae Kozlov, 1975 | Stigmaphronid wasps | 1 | Species | Taxom |
| Strephocladidae Martynov, 1938 | | 4 | Species | Taxom |
| Surijokocixiidae Shcherbakov, 2000 | | 2 | Species | Taxom |
| Surijokopsocidae Becker-Migdi..., 1961 | | 1 | Species | Taxom |
| Sylvabestiidae Aristov, 2000 | | 15 | Species | Taxom |
| Sylvaphlebiidae Martynov, 1940 | | 9 | Species | Taxom |
| Synomaloptilidae Martynov, 1938 | | 1 | Species | Taxom |
| Syntonopteridae Handlirsch, 1911 | | 1 | Species | Taxom |
| Tachinidae (Robineau-Des..., 1830) | Bristle Flies | 0 | Species | Taxom |
| Taeniopterygidae Klapálek, 1905 | Taeniopterygid winter stoneflies | 12 | Species | Taxom |
| Taldycupedidae Rohdendorf, 1961 | | 21 | Species | Taxom |
| Tcholmanvissiidae Zalessky, 1934 | | 2 | Species | Taxom |
| Tettoedischiidae Gorochov, 1987 | | 2 | Species | Taxom |
| Thaumatomeropidae Willmann, 1978 | | 1 | Species | Taxom |
| Thueringoedischiidae Zessin, 1997 | | 2 | Species | Taxom |
| Tillyardembiidae Zalessky, 1938 | | 7 | Species | Taxom |
| Tillyardipteridae Lukashevich ..., 1999 | | 1 | Species | Taxom |
| Tineidae Latreille, 1810 | & Allies | 1 | Species | Taxom |
| Tingidae Laporte, 1832 | Lace bug | 1 | Species | Taxom |
| Tococladidae Carpenter, 1966 | | 7 | Species | Taxom |
| Tomiidae Martynov, 1936 | | 1 | Species | Taxom |
| Tomiochoristidae Martynova, 1958 | | 6 | Species | Taxom |
| Tortricidae Latreille, 1803 | Bell Moths | 1 | Species | Taxom |
| Trachopterygidae Carpenter, 1976 | | 1 | Species | Taxom |
| Trachypachidae C. G. Thomson, 1857 | False ground beetle | 3 | Species | Taxom |
| Triaplidae Ponomarenko, 1977 | Extinct family | 1 | Species | Taxom |
| Triassoblattidae Durden, 1969 | | 1 | Species | Taxom |
| Tricoleidae (Ponomarenko, 1969) | | 5 | Species | Taxom |
| Tridactylidae Saussure, 1874 | Pygmy mole cricket | 1 | Species | Taxom |
| Tshekarchiereidae Novokshonov, 1997 | | 1 | Species | Taxom |
| Tshekardocoleidae Rohdendorf, 1944 | | 18 | Species | Taxom |
| Tshekardoperlidae N.D. Siniche..., 1987 | | 5 | Species | Taxom |
| Tunguskapteridae Storozhenko ..., 1995 | | 1 | Species | Taxom |
| Umenocoleidae Chen & Tian, 1973 | | 1 | Species | Taxom |
| Uninervidae Becker-Migdi..., 1951 | | 2 | Species | Taxom |
| Uraloptysmatidae (VD Ivanov, 1992) | | 1 | Species | Taxom |
| Veliidae Amyot & Serv..., 1843 | Broad-shouldered bugs | 1 | Species | Taxom |
| Vogesonymphidae Sinitshenkov..., 2005 | | 1 | Species | Taxom |
| Voltzialestidae Bechly, 1996 | | 1 | Species | Taxom |
| Vorkutiidae Rohdendorf, 1947 | | 3 | Species | Taxom |
| Xenoblattidae Durden, 1969 | | 4 | Species | Taxom |
| Xenopteridae Riek, 1955 | | 1 | Species | Taxom |
| Xyelotomidae Rasnitsyn, 1968 | | 1 | Species | Taxom |
| Zygopsocidae Tillyard, 1935 | | 1 | Species | Taxom |
