| Acanaloniidae Amyot and Se..., 1843 | Acanalonid planthoppers | 121 | Species | Taxom |
| Acanthosomatidae Signoret, 1864 | Acanthosomatids | 294 | Species | Taxom |
| Achilidae Stål, 1866 | Achilid Planthoppers | 598 | Species | Taxom |
| Aclerdidae Ferris, 1937 | Aclerdid scales | 69 | Species | Taxom |
| Actinoscytinidae (Evans, 1956) | | 1 | Species | Taxom |
| Adelgidae Heinze, 1962 | Adelgids | 130 | Species | Taxom |
| Adiheterothripidae Shumsher, 1946 | | 2 | Species | Taxom |
| Adocimycolidae Poinar and Vega, 2023 | | 1 | Species | Taxom |
| Aenictopecheidae Usinger, 1932 | | 24 | Species | Taxom |
| Aeolothripidae Uzel, 1895 | Banded thrips | 200 | Species | Taxom |
| Aepophilidae Puton, 1879 | Marine bug | 1 | Species | Taxom |
| Aetalionidae Spinola, 1850 | Treehopper | 41 | Species | Taxom |
| Albiococcidae Koteja, 2004 | | 1 | Species | Taxom |
| Alerollidae Kaddumi, 2005 | | 1 | Species | Taxom |
| Aleyrodidae Westwood, 1840 | Whiteflies | 1710 | Species | Taxom |
| Alydidae Amyot & Serv..., 1843 | Bean bugs | 333 | Species | Taxom |
| Ampelipteridae Haupt, 1941 | | 1 | Species | Taxom |
| Amphientomidae Enderlein, 1903 | Tropical Barklice | 116 | Species | Taxom |
| Amphipsocidae Mockford, 1978 | Hairy-winged Barklice | 189 | Species | Taxom |
| Anoecidae | | 1 | Species | Taxom |
| Anthocephalidae Kaddumi, 2005 | | 1 | Species | Taxom |
| Anthocoridae Fieber, 1837 | Flower bugs | 362 | Species | Taxom |
| Aphalaridae Löw, 1879 | | 760 | Species | Taxom |
| Aphelocheiridae Fieber, 1851 | | 119 | Species | Taxom |
| Apheloneuridae Carpenter, 1976 | | 3 | Species | Taxom |
| Aphididae Latreille, 1802 | Aphid | 4956 | Species | Taxom |
| Aphrophoridae Evans, 1946 | Froghoppers | 834 | Species | Taxom |
| Aphylidae Bergroth, 1906 | | 2 | Species | Taxom |
| Apticoccidae Vea & Grimaldi, 2015 | | 3 | Species | Taxom |
| Aradidae Spinola, 1837 | Flat bug | 753 | Species | Taxom |
| Archaeatropidae Baz & Ortuño, 2000 | | 17 | Species | Taxom |
| Archegocimicidae Handlirsch, 1906 | | 40 | Species | Taxom |
| Archescytinidae Tillyard, 1926 | | 68 | Species | Taxom |
| Archiconiopterygidae Ansorge, 1996 | | 1 | Species | Taxom |
| Archijassidae Becker-Migdi..., 1962 | | 27 | Species | Taxom |
| Archipsocidae Enderlein, 1903 | Ancient Barklice | 83 | Species | Taxom |
| Archipsyllidae Handlirsch, 1908 | | 12 | Species | Taxom |
| Arnoldidae Koteja, 2008 | | 2 | Species | Taxom |
| Artheneidae Stål, 1872 | | 22 | Species | Taxom |
| Asienthomidae (Martynov, 1926) | | 0 | Species | Taxom |
| Asiopsocidae Mockford & G..., 1976 | | 15 | Species | Taxom |
| Asterolecaniidae Cockerell, 1896 | Asterolecaniids | 354 | Species | Taxom |
| Aviorrhynchidae Nel & al., 2013 | | 1 | Species | Taxom |
| Bajsaphididae Homan, Zyla ..., 2015 | | 6 | Species | Taxom |
| Baryshnyalidae Ilger & Brau..., 2011 | | 1 | Species | Taxom |
| Beesoniidae Ferris, 1950 | Beesoniids | 18 | Species | Taxom |
| Belostomatidae Leach, 1815 | Alligator ticks | 208 | Species | Taxom |
| Berytidae Fieber, 1851 | Stilt bug | 219 | Species | Taxom |
| Biturritiidae (Metcalf, 1929) | | 10 | Species | Taxom |
| Blissidae Stål, 1862 | Chinch Bugs | 323 | Species | Taxom |
| Boopiidae Mjöberg, 1910 | | 50 | Species | Taxom |
| Boreoscytidae Becker-Migdi..., 1949 | | 3 | Species | Taxom |
| Bryopsocidae (Mockford, 1984) | | 2 | Species | Taxom |
| Burmacoccidae Koteja, 2004 | | 1 | Species | Taxom |
| Burmitaphididae Poinar & Brown, 2005 | | 2 | Species | Taxom |
| Caeciliusidae Kolbe, 1880 | Lizard Barklice | 686 | Species | Taxom |
| Caliscelidae Amyot & Serv..., 1843 | Piglet Bugs | 240 | Species | Taxom |
| Callaphididae (Borner, 1952) | | 30 | Species | Taxom |
| Callipappidae Koteja, 1996 | Bird of Paradise Flies | 8 | Species | Taxom |
| Calophyidae Vondracek, 1957 | | 91 | Species | Taxom |
| Calopsocidae (Pearman, 1936) | Common barklice | 34 | Species | Taxom |
| Canadaphididae Richards, 1966 | | 4 | Species | Taxom |
| Cantacaderidae (Stal, 1873) | | 1 | Species | Taxom |
| Capsidae (Hunt, 1979) | | 1 | Species | Taxom |
| Carsidaridae Crawford, 1911 | | 45 | Species | Taxom |
| Ceratocombidae Fieber, 1861 | | 60 | Species | Taxom |
| Cercopidae Leach, 1815 | Froghopper | 1925 | Species | Taxom |
| Cercopionidae Hamilton, 1990 | | 2 | Species | Taxom |
| Ceresopseidae Becker-Migdi..., 1958 | | 3 | Species | Taxom |
| Cerococcidae Balachowsky, 1942 | Cerococcids | 136 | Species | Taxom |
| Chiliocyclidae Evans, 1956 | | 4 | Species | Taxom |
| Cicadellidae Latreille, 1802 | Cicadellids | 27774 | Species | Taxom |
| Cicadidae Westwood, 1840 | Cicada | 4097 | Species | Taxom |
| Cicadomorphidae Handlirsch, 1906 | Giant cicadas | 4 | Species | Taxom |
| Cicadopsyllidae Martynov, 1931 | | 1 | Species | Taxom |
| Cimicidae Latreille, 1802 | Bat bugs | 182 | Species | Taxom |
| Cixiidae Spinola, 1839 | Cixid planthoppers | 2690 | Species | Taxom |
| Clastopteridae Stål, 1858 | Clastopterid Spittlebugs | 105 | Species | Taxom |
| Coccidae Stephens, 1829 | Soft scale | 1783 | Species | Taxom |
| Coelostomidiidae Morrison, 1928 | | 2 | Species | Taxom |
| Coleoscytidae Martynov, 1935 | | 10 | Species | Taxom |
| Colobathristidae Stål, 1866 | | 83 | Species | Taxom |
| Compsocidae Mockford, 1967 | | 5 | Species | Taxom |
| Conchaspididae Green, 1896 | False armored scales | 31 | Species | Taxom |
| Coreidae Leach, 1815 | Broad-headed bugs | 2904 | Species | Taxom |
| Corixidae Leach, 1815 | Lesser Water-Boatman | 571 | Species | Taxom |
| Creaphididae Shcherbakov ..., 1991 | | 2 | Species | Taxom |
| Cretamyzidae Heie, 1992 | | 1 | Species | Taxom |
| Cryptococcidae | | 20 | Species | Taxom |
| Cryptorhamphidae Hamid, 1971 | | 4 | Species | Taxom |
| Curaliidae Schuh, Weira..., 2008 | | 1 | Species | Taxom |
| Curvicubitidae Hong, 1984 | | 1 | Species | Taxom |
| Cydnidae Billberg, 1820 | Burrower bugs | 490 | Species | Taxom |
| Cymidae Baerensprung, 1860 | | 78 | Species | Taxom |
| Dactylopiidae Signoret, 1875 | Cochineal insects | 56 | Species | Taxom |
| Dasydemellidae | Shaggy Psocids | 32 | Species | Taxom |
| Delphacidae Leach, 1815 | Delphacid planthoppers | 2935 | Species | Taxom |
| Derbidae Spinola, 1839 | Derbid planthoppers | 1865 | Species | Taxom |
| Diaspididae Maskell, 1878 | Armored scale insects | 3700 | Species | Taxom |
| Dictyopharidae Spinola, 1839 | Dictyopharid Planthoppers | 693 | Species | Taxom |
| Dinidoridae Stål, 1867 | Dinidorid bug | 131 | Species | Taxom |
| Dipsocoridae Dohrn, 1859 | Dipsocorids | 50 | Species | Taxom |
| Dolabellopsocidae Eertmoed, 1973 | | 31 | Species | Taxom |
| Dracaphididae Hong & al., 2009 | | 1 | Species | Taxom |
| Drepanochaitophoridae Zhang & Hong, 1999 | | 1 | Species | Taxom |
| Drepanosiphidae (Herrich-Scha..., 1857) | | 5 | Species | Taxom |
| Dunstaniidae Tillyard, 1916 | | 12 | Species | Taxom |
| Dysmorphoptilidae Handlirsch, 1906 | | 23 | Species | Taxom |
| Ebboidae Perrichot, N..., 2006 | | 1 | Species | Taxom |
| Echinophthiriidae Enderlein, 1904 | | 14 | Species | Taxom |
| Ectopsocidae | Outer Barklice | 205 | Species | Taxom |
| Elasmodemidae (Letheirry & ..., 1896) | | 2 | Species | Taxom |
| Electrentomidae Enderlein, 1911 | | 18 | Species | Taxom |
| Electrococcidae Koteja, 2000 | | 4 | Species | Taxom |
| Elektraphididae Steffan, 1968 | | 14 | Species | Taxom |
| Elipsocidae Pearman, 1936 | Damp Barklice | 172 | Species | Taxom |
| Ellinaphididae Kania & Wegi..., 2008 | | 28 | Species | Taxom |
| Empheriidae Enderlein, 1906 | | 7 | Species | Taxom |
| Enderleinellidae Ewing, 1929 | | 55 | Species | Taxom |
| Enicocephalidae Stål, 1860 | Gnat bug | 349 | Species | Taxom |
| Eoscartarellidae | | 1 | Species | Taxom |
| Eoscarterellidae Evans, 1956 | | 4 | Species | Taxom |
| Epipsocidae | Elliptical bark louse | 159 | Species | Taxom |
| Epipygidae Hamilton, 2001 | | 5 | Species | Taxom |
| Eriococcidae Cockerell, 1899 | Eriococcid scales | 1164 | Species | Taxom |
| Eriosomatidae | Gall-making aphids | 1 | Species | Taxom |
| Eurybrachidae Stål, 1862 | | 215 | Species | Taxom |
| Fauriellidae Priesner, 1949 | | 1 | Species | Taxom |
| Flatidae Spinola, 1839 | Flatid planthoppers | 1273 | Species | Taxom |
| Fulgoridae Latreille, 1807 | Fulgorid Planthopper | 763 | Species | Taxom |
| Fulgoridiidae Handlirsch, 1939 | | 152 | Species | Taxom |
| Galgulidae | | 1 | Species | Taxom |
| Gelasopteridae Carpenter, 1976 | | 1 | Species | Taxom |
| Gelastocoridae Kirkaldy, 1897 | Toad bug | 127 | Species | Taxom |
| Genaphididae Handlirsch, 1907 | | 4 | Species | Taxom |
| Gengidae Fennah, 1949 | | 2 | Species | Taxom |
| Geocoridae Baerensprung, 1860 | Big-eyed Bugs | 302 | Species | Taxom |
| Gerridae Leach, 1815 | Jesus bugs | 955 | Species | Taxom |
| Granulidae Hong, 1980 | | 1 | Species | Taxom |
| Grassyaphididae Heie, 2000 | | 1 | Species | Taxom |
| Grimaldiellidae Koteja, 2000 | | 2 | Species | Taxom |
| Grohnidae Koteja, 2008 | | 1 | Species | Taxom |
| Gyponidae | | 1 | Species | Taxom |
| Gyropidae Kellogg, 1896 | | 97 | Species | Taxom |
| Hadrocoridae Handlirsch, 1920 | | 1 | Species | Taxom |
| Haematopinidae Enderlein, 1904 | Ungulate lice | 33 | Species | Taxom |
| Halimococcidae Brown & McKe..., 1962 | Halimococcids | 27 | Species | Taxom |
| Hammanococcidae Koteja & Azar, 2008 | | 1 | Species | Taxom |
| Hamophthiriidae Johnson, 1969 | | 1 | Species | Taxom |
| Hebridae Amyot and Se..., 1843 | Velvet water bug | 255 | Species | Taxom |
| Helotrephidae Esaki & China, 1927 | Beetle backswimmers | 194 | Species | Taxom |
| Hemipsocidae Pearman, 1936 | Leaf Litter Barklice | 27 | Species | Taxom |
| Henicocoridae Woodward, 1968 | | 1 | Species | Taxom |
| Heptapsogasteridae (Carriker, 1936) | | 7 | Species | Taxom |
| Hermatobatidae Coutière and..., 1901 | Seabugs | 13 | Species | Taxom |
| Heterogastridae Stål, 1872 | | 104 | Species | Taxom |
| Heterothripidae Bagnall, 1912 | | 76 | Species | Taxom |
| Hispanocaderidae Golub, Popov..., 2012 | | 1 | Species | Taxom |
| Hodgsonicoccidae Vea & Grimaldi, 2015 | | 1 | Species | Taxom |
| Homotomidae Heslop-Harrison, 1958 | | 80 | Species | Taxom |
| Hoplopleuridae Ewing, 1929 | | 198 | Species | Taxom |
| Hoploridiidae Popov & Shch..., 1991 | | 1 | Species | Taxom |
| Hormaphidae | | 4 | Species | Taxom |
| Hybophthiridae Ewing, 1929 | | 1 | Species | Taxom |
| Hydrometridae Billberg, 1820 | Marsh treader | 175 | Species | Taxom |
| Hylicellidae Evans, 1956 | | 40 | Species | Taxom |
| Hyocephalidae Bergroth, 1906 | | 3 | Species | Taxom |
| Hypochthonellidae China and Fe..., 1952 | | 1 | Species | Taxom |
| Hypsipterygidae Drake, 1961 | | 5 | Species | Taxom |
| Idiostolidae Scudder, 1962 | | 5 | Species | Taxom |
| Ignotalidae Riek, 1973 | | 5 | Species | Taxom |
| Ignotingidae Zhang, Golub..., 2005 | | 1 | Species | Taxom |
| Ingruidae Becker-Migdi..., 1960 | | 9 | Species | Taxom |
| Inkaidae Koteja, 1989 | | 1 | Species | Taxom |
| Ipsviciidae Tillyard, 1919 | | 18 | Species | Taxom |
| Isolitaphidae Poinar, 2017 | | 1 | Species | Taxom |
| Isolitaphididae | | 2 | Species | Taxom |
| Issidae Spinola, 1839 | Issid planthoppers | 1262 | Species | Taxom |
| Jascopidae Hamilton, 1971 | | 11 | Species | Taxom |
| Jassidae Latreille, 1802 | | 6 | Species | Taxom |
| Jersicoccidae Koteja, 2000 | | 4 | Species | Taxom |
| Jezzinothripidae zur Strassen, 1973 | | 2 | Species | Taxom |
| Joppeicidae Reuter, 1910 | | 1 | Species | Taxom |
| Juraphididae Zyla & al., 2014 | | 2 | Species | Taxom |
| Karabasiidae Popov, 1985 | | 9 | Species | Taxom |
| Kermesidae Signoret, 1875 | Gall-like Scale Insects | 110 | Species | Taxom |
| Kerriidae Lindinger, 1937 | Lac Insects | 36 | Species | Taxom |
| Khatangaphididae Heie, 2000 | | 2 | Species | Taxom |
| Kinnaridae Muir, 1925 | Kinnarid Planthoppers | 109 | Species | Taxom |
| Kobdocoridae Popov, 1986 | | 2 | Species | Taxom |
| Kozariidae Vea & Grimaldi, 2015 | | 2 | Species | Taxom |
| Kukaspididae Koteja & Poinar, 2001 | | 1 | Species | Taxom |
| Kuwaniidae MacGillvray, 1921 | | 11 | Species | Taxom |
| Labiococcidae Koteja, 2000 | | 2 | Species | Taxom |
| Lachesillidae Pearman, 1936 | Fateful Barklice | 374 | Species | Taxom |
| Laemobothriidae Mjöberg, 1910 | | 29 | Species | Taxom |
| Lalacidae Hamilton, 1990 | | 20 | Species | Taxom |
| Largidae Amyot and Se..., 1843 | Bordered plant bugs | 323 | Species | Taxom |
| Lebanaphididae Heie, 2000 | | 2 | Species | Taxom |
| Lebanococcidae Koteja & Azar, 2008 | | 1 | Species | Taxom |
| Lecaniodiaspididae | | 2 | Species | Taxom |
| Lecanodiaspididae Borchsenius, 1965 | False pit scales | 96 | Species | Taxom |
| Lepidopsocidae Lienhard & S..., 2002 | Scaly-winged bark louse | 225 | Species | Taxom |
| Leptaphelocheiridae Polhemus, 2000 | | 1 | Species | Taxom |
| Leptopodidae Amyot and Se..., 1843 | Spiny shore bugs | 52 | Species | Taxom |
| Lestoniidae China, 1955 | | 2 | Species | Taxom |
| Liadopsyllidae Martynov, 1927 | | 13 | Species | Taxom |
| Ligavenidae Hamilton, 1992 | | 1 | Species | Taxom |
| Linognathidae Webb, 1946 | | 78 | Species | Taxom |
| Liposcelididae Enderlein, 1911 | Booklice | 224 | Species | Taxom |
| Lithuanicoccidae Koteja, 2008 | | 2 | Species | Taxom |
| Liviidae Low, 1879 | | 377 | Species | Taxom |
| Lophopidae Stål, 1866 | | 144 | Species | Taxom |
| Lutevanaphididae Szwedo, Lape..., 2014 | | 1 | Species | Taxom |
| Lygaeidae Schilling, 1829 | Chinch bugs | 1635 | Species | Taxom |
| Machaerotidae Stål, 1866 | Tube spittlebugs | 128 | Species | Taxom |
| Macrodrilidae Poinar, 2020 | | 1 | Species | Taxom |
| Macroveliidae McKinstry, 1942 | Macroveliid shore bugs | 5 | Species | Taxom |
| Magnacicadiidae Hong & Chen, 1981 | | 3 | Species | Taxom |
| Maguviopseidae Shcherbakov, 2011 | | 12 | Species | Taxom |
| Malcidae Stål, 1865 | | 49 | Species | Taxom |
| Malmopsyllidae Becker-Migdi..., 1985 | | 1 | Species | Taxom |
| Manicapsocidae (Mockford, 1967) | | 2 | Species | Taxom |
| Marchalinidae Morrison, 1927 | | 2 | Species | Taxom |
| Margarodidae Newstead, 1901 | Cottony cushion scales | 139 | Species | Taxom |
| Matsucoccidae Morrison, 1927 | Pine bark scales | 47 | Species | Taxom |
| Medocostidae Stys, 1967 | | 2 | Species | Taxom |
| Meenoplidae Fieber, 1872 | | 141 | Species | Taxom |
| Megarididae McAtee & Mal..., 1928 | | 8 | Species | Taxom |
| Melanthripidae Bagnall, 1913 | | 62 | Species | Taxom |
| Membracidae Germar, 1821 | Horned Treehoppers | 3498 | Species | Taxom |
| Menoponidae Mjöberg, 1910 | Bird lice | 999 | Species | Taxom |
| Merothripidae Hood, 1914 | Large-legged thrips | 21 | Species | Taxom |
| Meschiidae Malipatil, 2014 | | 2 | Species | Taxom |
| Mesogereonidae Tillyard, 1921 | | 7 | Species | Taxom |
| Mesojabloniidae Storozhenko, 1992 | | 3 | Species | Taxom |
| Mesolygaeidae Zhang, 1991 | | 2 | Species | Taxom |
| Mesopentacoridae Popov, 1968 | | 4 | Species | Taxom |
| Mesopsocidae Enderlein, 1903 | Middle Barklice | 84 | Species | Taxom |
| Mesotrephidae Popov, 1971 | | 1 | Species | Taxom |
| Mesoveliidae Douglas and ..., 1867 | Pond treaders | 78 | Species | Taxom |
| Mesozoicaphididae Heie, 1992 | | 7 | Species | Taxom |
| Micrococcidae Silvestri, 1939 | Mediterranean scales | 10 | Species | Taxom |
| Micronectidae Jaczewski, 1924 | Pygmy water boatmen | 236 | Species | Taxom |
| Microphysidae Dohrn, 1859 | Microphysid bugs | 49 | Species | Taxom |
| Microthoraciidae Kim and Ludwig, 1978 | | 4 | Species | Taxom |
| Mimarachnidae Shcherbakov, 2007 | | 5 | Species | Taxom |
| Miridae Hahn, 1831 | Capsid bugs | 12387 | Species | Taxom |
| Monophlebidae Signoret, 1875 | Giant scale | 331 | Species | Taxom |
| Moundthripidae Nel & al., 2007 | | 1 | Species | Taxom |
| Musapsocidae Mockford, 1967 | | 9 | Species | Taxom |
| Myerslopiidae Evans, 1957 | | 10 | Species | Taxom |
| Myopsocidae Enderlein, 1907 | Mouse like barklouse | 171 | Species | Taxom |
| Nabidae Costa, 1852 | Damsel bugs | 243 | Species | Taxom |
| Naibiidae Shcherbakov, 2007 | | 4 | Species | Taxom |
| Naucoridae Leach, 1815 | Creeping water bug | 502 | Species | Taxom |
| Neazoniidae Szwedo, 2007 | | 4 | Species | Taxom |
| Neolinognathidae Fahrenholz, 1936 | | 2 | Species | Taxom |
| Neopsylloididae Becker-Migdi..., 1985 | | 3 | Species | Taxom |
| Nepidae Latreille, 1802 | Back-swimmer Water-boatmen | 279 | Species | Taxom |
| Neurostigmatidae | | 9 | Species | Taxom |
| Ninidae Barber, 1956 | | 8 | Species | Taxom |
| Nogodinidae Melichar, 1898 | | 380 | Species | Taxom |
| Notonectidae Latreille, 1802 | Back Swimmers | 493 | Species | Taxom |
| Ochteridae Kirkaldy, 1906 | Velvety shore bug | 10 | Species | Taxom |
| Omaniidae Cobben, 1970 | Intertidal dwarf bug | 7 | Species | Taxom |
| Ortheziidae Green, 1896 | Ensign coccids | 274 | Species | Taxom |
| Oviparosiphidae Shaposhnikov, 1979 | | 25 | Species | Taxom |
| Oxycarenidae Stål, 1862 | | 148 | Species | Taxom |
| Pachygronthidae Stål, 1865 | | 77 | Species | Taxom |
| Pachymeridiidae Handlirsch, 1906 | | 37 | Species | Taxom |
| Pachynomidae Stål, 1873 | | 4 | Species | Taxom |
| Pachytroctidae Enderlein, 1911 | Thick Barklice | 98 | Species | Taxom |
| Palaeoaphididae Richards, 1966 | | 20 | Species | Taxom |
| Palaeontinidae Handlirsch, 1906 | Giant cicadas | 117 | Species | Taxom |
| Paraknightiidae Evans, 1950 | | 3 | Species | Taxom |
| Paraphrynoveliidae (Anderson, 1978) | | 2 | Species | Taxom |
| Parastrachiidae Oshanin, 1922 | | 2 | Species | Taxom |
| Parvaverrucosidae Poinar & Brown, 2006 | | 1 | Species | Taxom |
| Pecaroecidae Kéler, 1963 | | 1 | Species | Taxom |
| Pedicinidae Enderlein, 1904 | | 16 | Species | Taxom |
| Pediculidae Leach, 1817 | | 16 | Species | Taxom |
| Peloridiidae Breddin, 1897 | Gondwanan moss bugs | 43 | Species | Taxom |
| Pennygullaniidae Koteja & Azar, 2008 | | 1 | Species | Taxom |
| Pentatomidae Leach, 1815 | Lesser shield bugs | 1838 | Species | Taxom |
| Pereboriidae Zalessky, 1930 | | 11 | Species | Taxom |
| Perforissidae Shcherbakov, 2007 | | 11 | Species | Taxom |
| Peripsocidae Roesler, 1944 | Stout Barklice | 251 | Species | Taxom |
| Permaleurodidae Becker-Migdi..., 1959 | | 1 | Species | Taxom |
| Permaphidopseidae Becker-Migdi..., 1960 | | 2 | Species | Taxom |
| Permopsocidae Tillyard, 1926 | | 5 | Species | Taxom |
| Phacopteronidae Heslop-Harrison, 1958 | | 7 | Species | Taxom |
| Phenacoleachiidae Cox, 1984 | Phenacoleachiids | 2 | Species | Taxom |
| Philopteridae Burmeister, 1830 | | 2360 | Species | Taxom |
| Philotarsidae Pearman, 1936 | Loving Barklice | 149 | Species | Taxom |
| Phlaeothripidae Uzel, 1895 | Thrips | 3770 | Species | Taxom |
| Phloeidae Amyot & Serv..., 1843 | | 1 | Species | Taxom |
| Phoenicococcidae Stickney, 1934 | Palm scales | 2 | Species | Taxom |
| Phylloxeridae Herrich-Scha..., 1854 | Phylloxeran Aphids | 98 | Species | Taxom |
| Piesmatidae Amyot & Audi..., 1843 | Ash grey leaf bug | 69 | Species | Taxom |
| Pincombeidae Tillyard, 1922 | | 7 | Species | Taxom |
| Pityococcidae Mckenzie, 1942 | | 8 | Species | Taxom |
| Plataspidae (Dallas, 1851) | | 37 | Species | Taxom |
| Plataspididae (Dallas, 1851) | | 65 | Species | Taxom |
| Pleidae Fieber, 1817 | Pigmy backswimmers | 50 | Species | Taxom |
| Plokiophilidae China, 1953 | Spider web bug | 10 | Species | Taxom |
| Polyctenidae Westwood, 1874 | Bat bugs | 33 | Species | Taxom |
| Polyplacidae Fahrenholz, 1912 | Spiny rat lice | 217 | Species | Taxom |
| Potamocoridae Štys & Jansson, 1988 | | 11 | Species | Taxom |
| Primipentatomidae Yao, Cai, Ri..., 2013 | | 5 | Species | Taxom |
| Prionoglarididae Badonnel, 1951 | Large-winged Psocids | 15 | Species | Taxom |
| Probascaniidae Handlirsch, 1921 | | 1 | Species | Taxom |
| Procercopidae Handlirsch, 1906 | | 39 | Species | Taxom |
| Progonocimicidae Handlirsch, 1906 | | 85 | Species | Taxom |
| Prosbolidae Handlirsch, 1906 | | 123 | Species | Taxom |
| Prosbolopseidae Becker-Migdi..., 1946 | | 16 | Species | Taxom |
| Protocoridae Handlirsch, 1906 | | 5 | Species | Taxom |
| Protopsyllidiidae Becker-Migdi..., 1960 | | 59 | Species | Taxom |
| Protroctopsocidae Smithers, 1972 | | 3 | Species | Taxom |
| Pseudocaeciliidae Pearman, 1936 | False Lizard Barklice | 333 | Species | Taxom |
| Pseudococcidae Heymons, 1915 | Mealy Bugs | 2341 | Species | Taxom |
| Pseudonerthridae Martins-Neto..., 2005 | | 1 | Species | Taxom |
| Psilopsocidae Roesler, 1944 | | 7 | Species | Taxom |
| Psocidae Samouelle, 1819 | Common bark louse | 1178 | Species | Taxom |
| Psocidiidae Tillyard, 1926 | | 16 | Species | Taxom |
| Psoquillidae Lienhard & S..., 2002 | Bird Nest Barklice | 37 | Species | Taxom |
| Psyllidae Latreille, 1807 | Jumping plant lice | 1949 | Species | Taxom |
| Psyllipsocidae Enderlein, 1903 | Cave Barklice | 73 | Species | Taxom |
| Pterocimicidae Popov & al., 1994 | | 1 | Species | Taxom |
| Pthiridae Leach, 1817 | | 4 | Species | Taxom |
| Ptiloneuridae Eertmoed, 1973 | | 203 | Species | Taxom |
| Putoidae Beardsley, 1969 | Giant mealybugs | 78 | Species | Taxom |
| Pyrrhocoridae Dohrn, 1859 | Cotton stainers | 71 | Species | Taxom |
| Qinococcidae Wu, 2022 | | 10 | Species | Taxom |
| Qiyangiricaniidae Szwedo, Wang..., 2011 | | 1 | Species | Taxom |
| Rasnitsynaphididae Homan & Wegi..., 2011 | | 3 | Species | Taxom |
| Ratemiidae Kim and Ludwig, 1978 | | 3 | Species | Taxom |
| Reduviidae Latreille, 1807 | Assassin and thread-legged bugs | 7738 | Species | Taxom |
| Retinaphididae Heie, 2000 | | 2 | Species | Taxom |
| Rhizoecidae Williams, 1969 | | 192 | Species | Taxom |
| Rhopalidae Amyot & Serv..., 1843 | Rhopalid Bugs | 282 | Species | Taxom |
| Rhyparochromidae Amyot & Serv..., 1843 | Dirt-colored Seed Bugs | 1843 | Species | Taxom |
| Ricaniidae Amyot & Audi..., 1843 | | 433 | Species | Taxom |
| Ricinidae Neumann, 1890 | | 120 | Species | Taxom |
| Saaloscytinidae Brauckmann, ..., 2006 | | 4 | Species | Taxom |
| Saldidae Amyot and Se..., 1843 | Shore bug | 394 | Species | Taxom |
| Schizopteridae Reuter, 1891 | Jumping ground bugs | 477 | Species | Taxom |
| Scutelleridae Leach, 1815 | Jewel bugs | 244 | Species | Taxom |
| Scytinopteridae Handlirsch, 1906 | | 37 | Species | Taxom |
| Serafinidae Koteja, 2008 | | 2 | Species | Taxom |
| Serpentivenidae Shcherbakov, 1984 | | 8 | Species | Taxom |
| Shaposhnikoviidae Kononova, 1976 | | 9 | Species | Taxom |
| Shurabellidae Popov, 1971 | | 7 | Species | Taxom |
| Simulaphididae Shcherbakov, 2007 | | 1 | Species | Taxom |
| Sinaphididae Zhang & al., 1989 | | 2 | Species | Taxom |
| Sinoalidae Wang & Szwedo, 2012 | | 7 | Species | Taxom |
| Sinojuraphididae Huang & Nel, 2008 | | 1 | Species | Taxom |
| Sisyrocoridae Handlirsch, 1921 | | 6 | Species | Taxom |
| Sphaeropsocidae Kolbe, 1883 | | 17 | Species | Taxom |
| Spurostigmatidae Casasola Gon..., 2006 | | 42 | Species | Taxom |
| Steingeliidae Morrison, 1927 | | 12 | Species | Taxom |
| Stemmocryptidae Stys, 1983 | | 1 | Species | Taxom |
| Stenopsocidae Pearman, 1936 | Narrow Barklice | 114 | Species | Taxom |
| Stenoviciidae Evans, 1956 | | 8 | Species | Taxom |
| Stenurothripidae Bagnall, 1923 | | 1 | Species | Taxom |
| Stictococcidae Lindinger, 1913 | Stictococcids | 20 | Species | Taxom |
| Stigmacoccidae Morrison giv..., 2006 | | 3 | Species | Taxom |
| Surijokocixiidae Shcherbakov, 2000 | | 5 | Species | Taxom |
| Surijokopsocidae Becker-Migdi..., 1961 | | 1 | Species | Taxom |
| Szelegiewicziidae Wegierek, 1989 | | 2 | Species | Taxom |
| Tachardiidae Green, 1896 | Lac insects | 111 | Species | Taxom |
| Tajmyraphididae Kononova, 1975 | | 4 | Species | Taxom |
| Termitaphididae Myers, 1924 | Termite bug | 15 | Species | Taxom |
| Tessaratomidae Stål, 1864 | Giant shield bug | 276 | Species | Taxom |
| Tettigarctidae Distant, 1905 | Hairy cicada | 43 | Species | Taxom |
| Tettigometridae Germar, 1821 | | 123 | Species | Taxom |
| Thaumastellidae Štys, 1864 | | 1 | Species | Taxom |
| Thaumastocoridae Kirkaldy, 1908 | Palm bug | 40 | Species | Taxom |
| Thelaxidae (Baker, 1920) | | 1 | Species | Taxom |
| Thripidae Stevens, 1829 | Common thrips | 2537 | Species | Taxom |
| Thyreocoridae Amyot and Se..., 1843 | Black bugs | 80 | Species | Taxom |
| Tibicinidae (Distant, 1905) | | 1 | Species | Taxom |
| Tingidae Laporte, 1832 | Lace bug | 3100 | Species | Taxom |
| Torirostratidae Yao, Cai, Sh..., 2014 | | 1 | Species | Taxom |
| Torrirostratidae Yao & al., 2014 | | 1 | Species | Taxom |
| Trachopterygidae Carpenter, 1976 | | 1 | Species | Taxom |
| Triassoaphididae Heie, 1999 | | 1 | Species | Taxom |
| Triassocoridae Tillyard, 1922 | | 5 | Species | Taxom |
| Trichodectidae Kellogg, 1896 | | 357 | Species | Taxom |
| Trichopsocidae Pearman, 1936 | Lash-faced psocid | 15 | Species | Taxom |
| Trimenoponidae Harrison, 1916 | | 23 | Species | Taxom |
| Triozidae Löw, 1879 | Jumping plant lice | 579 | Species | Taxom |
| Trisegmentatidae Zhang, Sun &..., 1994 | | 1 | Species | Taxom |
| Troctopsocidae Mockford, 1967 | | 26 | Species | Taxom |
| Trogiidae Enderlein, 1903 | Granary Booklice | 85 | Species | Taxom |
| Tropiduchidae Stål, 1866 | Tropiduchid Planthoppers | 602 | Species | Taxom |
| Ulopidae (Le Peletier ..., 1825) | | 172 | Species | Taxom |
| Uninervidae Becker-Migdi..., 1951 | | 3 | Species | Taxom |
| Urostylidae (Dallas, 1851) | | 29 | Species | Taxom |
| Urostylididae Dallas, 1851 | | 1 | Species | Taxom |
| Veliidae Amyot & Serv..., 1843 | Broad-shouldered bugs | 1273 | Species | Taxom |
| Velocipedidae Bergroth, 1891 | Fast-footed bugs | 29 | Species | Taxom |
| Venicoridae Yao, Ren & Cai, 2012 | | 4 | Species | Taxom |
| Vetanthocoridae Yao, Cai & Ren, 2006 | | 16 | Species | Taxom |
| Weitschatidae Koteja, 2008 | | 3 | Species | Taxom |
| Weiwoboidae Lin, Szwedo,..., 2010 | | 1 | Species | Taxom |
| Westphalopsocidae Azar & al., 2013 | | 1 | Species | Taxom |
| Xylococcidae (Pergrande, 1898) | | 14 | Species | Taxom |
| Yuripopovinidae Azar & al., 2011 | | 2 | Species | Taxom |
| Zygopsocidae Tillyard, 1935 | | 1 | Species | Taxom |
