| Acanaloniidae Amyot and Se..., 1843 | Acanalonid planthoppers | 7 | Species | Taxom |
| Acanthosomatidae Signoret, 1864 | Acanthosomatids | 155 | Species | Taxom |
| Achilidae Stål, 1866 | Achilid Planthoppers | 212 | Species | Taxom |
| Aclerdidae Ferris, 1937 | Aclerdid scales | 30 | Species | Taxom |
| Actinoscytinidae (Evans, 1956) | | 1 | Species | Taxom |
| Adelgidae Heinze, 1962 | Adelgids | 34 | Species | Taxom |
| Adocimycolidae Poinar and Vega, 2023 | | 1 | Species | Taxom |
| Aenictopecheidae Usinger, 1932 | | 5 | Species | Taxom |
| Aeolothripidae Uzel, 1895 | Banded thrips | 68 | Species | Taxom |
| Aepophilidae Puton, 1879 | Marine bug | 1 | Species | Taxom |
| Aetalionidae Spinola, 1850 | Treehopper | 2 | Species | Taxom |
| Albiococcidae Koteja, 2004 | | 1 | Species | Taxom |
| Alerollidae Kaddumi, 2005 | | 1 | Species | Taxom |
| Aleyrodidae Westwood, 1840 | Whiteflies | 852 | Species | Taxom |
| Alydidae Amyot & Serv..., 1843 | Bean bugs | 130 | Species | Taxom |
| Amphientomidae Enderlein, 1903 | Tropical Barklice | 55 | Species | Taxom |
| Amphipsocidae Mockford, 1978 | Hairy-winged Barklice | 78 | Species | Taxom |
| Anoecidae | | 1 | Species | Taxom |
| Anthocephalidae Kaddumi, 2005 | | 1 | Species | Taxom |
| Anthocoridae Fieber, 1837 | Flower bugs | 70 | Species | Taxom |
| Aphalaridae Löw, 1879 | | 221 | Species | Taxom |
| Aphelocheiridae Fieber, 1851 | | 100 | Species | Taxom |
| Aphididae Latreille, 1802 | Aphids | 1928 | Species | Taxom |
| Aphrophoridae Evans, 1946 | Froghoppers | 540 | Species | Taxom |
| Apticoccidae Vea & Grimaldi, 2015 | | 3 | Species | Taxom |
| Aradidae Spinola, 1837 | Flat bug | 88 | Species | Taxom |
| Archaeatropidae Baz & Ortuño, 2000 | | 9 | Species | Taxom |
| Archegocimicidae Handlirsch, 1906 | | 3 | Species | Taxom |
| Archescytinidae Tillyard, 1926 | | 1 | Species | Taxom |
| Archijassidae Becker-Migdi..., 1962 | | 13 | Species | Taxom |
| Archipsocidae Enderlein, 1903 | Ancient Barklice | 5 | Species | Taxom |
| Archipsyllidae Handlirsch, 1908 | | 7 | Species | Taxom |
| Arnoldidae Koteja, 2008 | | 2 | Species | Taxom |
| Artheneidae Stål, 1872 | | 17 | Species | Taxom |
| Asiopsocidae Mockford & G..., 1976 | | 4 | Species | Taxom |
| Asterolecaniidae Cockerell, 1896 | Asterolecaniids | 218 | Species | Taxom |
| Beesoniidae Ferris, 1950 | Beesoniids | 13 | Species | Taxom |
| Belostomatidae Leach, 1815 | Alligator ticks | 34 | Species | Taxom |
| Berytidae Fieber, 1851 | Stilt bug | 71 | Species | Taxom |
| Blissidae Stål, 1862 | Chinch Bugs | 124 | Species | Taxom |
| Boopiidae Mjöberg, 1910 | | 1 | Species | Taxom |
| Burmacoccidae Koteja, 2004 | | 1 | Species | Taxom |
| Burmitaphididae Poinar & Brown, 2005 | | 2 | Species | Taxom |
| Caeciliusidae Kolbe, 1880 | Lizard Barklice | 277 | Species | Taxom |
| Caliscelidae Amyot & Serv..., 1843 | Piglet Bugs | 118 | Species | Taxom |
| Callaphididae (Borner, 1952) | | 12 | Species | Taxom |
| Calophyidae Vondracek, 1957 | | 52 | Species | Taxom |
| Calopsocidae (Pearman, 1936) | Common barklice | 8 | Species | Taxom |
| Canadaphididae Richards, 1966 | | 1 | Species | Taxom |
| Carsidaridae Crawford, 1911 | | 31 | Species | Taxom |
| Ceratocombidae Fieber, 1861 | | 20 | Species | Taxom |
| Cercopidae Leach, 1815 | Froghopper | 1070 | Species | Taxom |
| Ceresopseidae Becker-Migdi..., 1958 | | 3 | Species | Taxom |
| Cerococcidae Balachowsky, 1942 | Cerococcids | 47 | Species | Taxom |
| Cicadellidae Latreille, 1802 | Cicadellids | 9749 | Species | Taxom |
| Cicadidae Westwood, 1840 | Cicada | 1564 | Species | Taxom |
| Cicadomorphidae Handlirsch, 1906 | Giant cicadas | 2 | Species | Taxom |
| Cimicidae Latreille, 1802 | Bat bugs | 62 | Species | Taxom |
| Cixiidae Spinola, 1839 | Cixid planthoppers | 968 | Species | Taxom |
| Clastopteridae Stål, 1858 | Clastopterid Spittlebugs | 3 | Species | Taxom |
| Coccidae Stephens, 1829 | Soft scale | 846 | Species | Taxom |
| Coelostomidiidae Morrison, 1928 | | 2 | Species | Taxom |
| Colobathristidae Stål, 1866 | | 32 | Species | Taxom |
| Compsocidae Mockford, 1967 | | 3 | Species | Taxom |
| Conchaspididae Green, 1896 | False armored scales | 6 | Species | Taxom |
| Coreidae Leach, 1815 | Broad-headed bugs | 803 | Species | Taxom |
| Corixidae Leach, 1815 | Lesser Water-Boatman | 182 | Species | Taxom |
| Creaphididae Shcherbakov ..., 1991 | | 1 | Species | Taxom |
| Cryptococcidae | | 7 | Species | Taxom |
| Curvicubitidae Hong, 1984 | | 1 | Species | Taxom |
| Cydnidae Billberg, 1820 | Burrower bugs | 67 | Species | Taxom |
| Cymidae Baerensprung, 1860 | | 21 | Species | Taxom |
| Dactylopiidae Signoret, 1875 | Cochineal insects | 44 | Species | Taxom |
| Dasydemellidae | Shaggy Psocids | 16 | Species | Taxom |
| Delphacidae Leach, 1815 | Delphacid planthoppers | 1253 | Species | Taxom |
| Derbidae Spinola, 1839 | Derbid planthoppers | 808 | Species | Taxom |
| Diaspididae Maskell, 1878 | Armored scale insects | 2102 | Species | Taxom |
| Dictyopharidae Spinola, 1839 | Dictyopharid Planthoppers | 286 | Species | Taxom |
| Dinidoridae Stål, 1867 | Dinidorid bug | 61 | Species | Taxom |
| Dipsocoridae Dohrn, 1859 | Dipsocorids | 25 | Species | Taxom |
| Dolabellopsocidae Eertmoed, 1973 | | 1 | Species | Taxom |
| Dracaphididae Hong & al., 2009 | | 1 | Species | Taxom |
| Drepanochaitophoridae Zhang & Hong, 1999 | | 1 | Species | Taxom |
| Dunstaniidae Tillyard, 1916 | | 2 | Species | Taxom |
| Dysmorphoptilidae Handlirsch, 1906 | | 4 | Species | Taxom |
| Ebboidae Perrichot, N..., 2006 | | 1 | Species | Taxom |
| Echinophthiriidae Enderlein, 1904 | | 2 | Species | Taxom |
| Ectopsocidae | Outer Barklice | 96 | Species | Taxom |
| Elasmodemidae (Letheirry & ..., 1896) | | 1 | Species | Taxom |
| Electrentomidae Enderlein, 1911 | | 2 | Species | Taxom |
| Electrococcidae Koteja, 2000 | | 1 | Species | Taxom |
| Elipsocidae Pearman, 1936 | Damp Barklice | 30 | Species | Taxom |
| Ellinaphididae Kania & Wegi..., 2008 | | 8 | Species | Taxom |
| Enderleinellidae Ewing, 1929 | | 25 | Species | Taxom |
| Enicocephalidae Stål, 1860 | Gnat bug | 55 | Species | Taxom |
| Epipsocidae | Elliptical bark louse | 49 | Species | Taxom |
| Eriococcidae Cockerell, 1899 | Eriococcid scales | 337 | Species | Taxom |
| Eurybrachidae Stål, 1862 | | 74 | Species | Taxom |
| Flatidae Spinola, 1839 | Flatid planthoppers | 575 | Species | Taxom |
| Fulgoridae Latreille, 1807 | Fulgorid Planthopper | 357 | Species | Taxom |
| Fulgoridiidae Handlirsch, 1939 | | 11 | Species | Taxom |
| Gelastocoridae Kirkaldy, 1897 | Toad bug | 20 | Species | Taxom |
| Genaphididae Handlirsch, 1907 | | 3 | Species | Taxom |
| Gengidae Fennah, 1949 | | 1 | Species | Taxom |
| Geocoridae Baerensprung, 1860 | Big-eyed Bugs | 99 | Species | Taxom |
| Gerridae Leach, 1815 | Jesus bugs | 536 | Species | Taxom |
| Granulidae Hong, 1980 | | 1 | Species | Taxom |
| Grohnidae Koteja, 2008 | | 1 | Species | Taxom |
| Gyropidae Kellogg, 1896 | | 2 | Species | Taxom |
| Haematopinidae Enderlein, 1904 | Ungulate lice | 11 | Species | Taxom |
| Halimococcidae Brown & McKe..., 1962 | Halimococcids | 10 | Species | Taxom |
| Hammanococcidae Koteja & Azar, 2008 | | 1 | Species | Taxom |
| Hamophthiriidae Johnson, 1969 | | 1 | Species | Taxom |
| Hebridae Amyot and Se..., 1843 | Velvet water bug | 120 | Species | Taxom |
| Helotrephidae Esaki & China, 1927 | Beetle backswimmers | 160 | Species | Taxom |
| Hemipsocidae Pearman, 1936 | Leaf Litter Barklice | 18 | Species | Taxom |
| Hermatobatidae Coutière and..., 1901 | Seabugs | 4 | Species | Taxom |
| Heterogastridae Stål, 1872 | | 44 | Species | Taxom |
| Hispanocaderidae Golub, Popov..., 2012 | | 1 | Species | Taxom |
| Hodgsonicoccidae Vea & Grimaldi, 2015 | | 1 | Species | Taxom |
| Homotomidae Heslop-Harrison, 1958 | | 53 | Species | Taxom |
| Hoplopleuridae Ewing, 1929 | | 80 | Species | Taxom |
| Hormaphidae | | 4 | Species | Taxom |
| Hydrometridae Billberg, 1820 | Marsh treader | 52 | Species | Taxom |
| Hylicellidae Evans, 1956 | | 10 | Species | Taxom |
| Hypsipterygidae Drake, 1961 | | 3 | Species | Taxom |
| Ignotalidae Riek, 1973 | | 3 | Species | Taxom |
| Ignotingidae Zhang, Golub..., 2005 | | 1 | Species | Taxom |
| Inkaidae Koteja, 1989 | | 1 | Species | Taxom |
| Ipsviciidae Tillyard, 1919 | | 8 | Species | Taxom |
| Isolitaphidae Poinar, 2017 | | 1 | Species | Taxom |
| Isolitaphididae | | 2 | Species | Taxom |
| Issidae Spinola, 1839 | Issid planthoppers | 707 | Species | Taxom |
| Jascopidae Hamilton, 1971 | | 3 | Species | Taxom |
| Jersicoccidae Koteja, 2000 | | 1 | 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 | | 5 | Species | Taxom |
| Kermesidae Signoret, 1875 | Gall-like Scale Insects | 62 | Species | Taxom |
| Kerriidae Lindinger, 1937 | Lac Insects | 15 | Species | Taxom |
| Kinnaridae Muir, 1925 | Kinnarid Planthoppers | 40 | Species | Taxom |
| Kobdocoridae Popov, 1986 | | 2 | Species | Taxom |
| Kozariidae Vea & Grimaldi, 2015 | | 2 | Species | Taxom |
| Kuwaniidae MacGillvray, 1921 | | 7 | Species | Taxom |
| Lachesillidae Pearman, 1936 | Fateful Barklice | 32 | Species | Taxom |
| Laemobothriidae Mjöberg, 1910 | | 1 | Species | Taxom |
| Lalacidae Hamilton, 1990 | | 1 | Species | Taxom |
| Largidae Amyot and Se..., 1843 | Bordered plant bugs | 75 | 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 | 40 | Species | Taxom |
| Lepidopsocidae Lienhard & S..., 2002 | Scaly-winged bark louse | 49 | Species | Taxom |
| Leptopodidae Amyot and Se..., 1843 | Spiny shore bugs | 23 | Species | Taxom |
| Liadopsyllidae Martynov, 1927 | | 10 | Species | Taxom |
| Linognathidae Webb, 1946 | | 21 | Species | Taxom |
| Liposcelididae Enderlein, 1911 | Booklice | 52 | Species | Taxom |
| Lithuanicoccidae Koteja, 2008 | | 2 | Species | Taxom |
| Liviidae Low, 1879 | | 194 | Species | Taxom |
| Lophopidae Stål, 1866 | | 110 | Species | Taxom |
| Lygaeidae Schilling, 1829 | Chinch bugs | 426 | Species | Taxom |
| Machaerotidae Stål, 1866 | Tube spittlebugs | 97 | Species | Taxom |
| Macrodrilidae Poinar, 2020 | | 1 | Species | Taxom |
| Macroveliidae McKinstry, 1942 | Macroveliid shore bugs | 1 | Species | Taxom |
| Magnacicadiidae Hong & Chen, 1981 | | 1 | Species | Taxom |
| Maguviopseidae Shcherbakov, 2011 | | 11 | Species | Taxom |
| Malcidae Stål, 1865 | | 45 | Species | Taxom |
| Malmopsyllidae Becker-Migdi..., 1985 | | 1 | Species | Taxom |
| Manicapsocidae (Mockford, 1967) | | 2 | Species | Taxom |
| Marchalinidae Morrison, 1927 | | 1 | Species | Taxom |
| Margarodidae Newstead, 1901 | Cottony cushion scales | 78 | Species | Taxom |
| Matsucoccidae Morrison, 1927 | Pine bark scales | 26 | Species | Taxom |
| Meenoplidae Fieber, 1872 | | 46 | Species | Taxom |
| Melanthripidae Bagnall, 1913 | | 22 | Species | Taxom |
| Membracidae Germar, 1821 | Horned Treehoppers | 953 | Species | Taxom |
| Menoponidae Mjöberg, 1910 | Bird lice | 165 | Species | Taxom |
| Merothripidae Hood, 1914 | Large-legged thrips | 9 | Species | Taxom |
| Mesojabloniidae Storozhenko, 1992 | | 3 | Species | Taxom |
| Mesolygaeidae Zhang, 1991 | | 2 | Species | Taxom |
| Mesopentacoridae Popov, 1968 | | 3 | Species | Taxom |
| Mesopsocidae Enderlein, 1903 | Middle Barklice | 25 | Species | Taxom |
| Mesotrephidae Popov, 1971 | | 1 | Species | Taxom |
| Mesoveliidae Douglas and ..., 1867 | Pond treaders | 36 | Species | Taxom |
| Micrococcidae Silvestri, 1939 | Mediterranean scales | 6 | Species | Taxom |
| Micronectidae Jaczewski, 1924 | Pygmy water boatmen | 120 | Species | Taxom |
| Microphysidae Dohrn, 1859 | Microphysid bugs | 9 | Species | Taxom |
| Microthoraciidae Kim and Ludwig, 1978 | | 1 | Species | Taxom |
| Mimarachnidae Shcherbakov, 2007 | | 1 | Species | Taxom |
| Miridae Hahn, 1831 | Capsid bugs | 3118 | Species | Taxom |
| Monophlebidae Signoret, 1875 | Giant scale | 123 | Species | Taxom |
| Myerslopiidae Evans, 1957 | | 1 | Species | Taxom |
| Myopsocidae Enderlein, 1907 | Mouse like barklouse | 45 | Species | Taxom |
| Nabidae Costa, 1852 | Damsel bugs | 47 | Species | Taxom |
| Naibiidae Shcherbakov, 2007 | | 1 | Species | Taxom |
| Naucoridae Leach, 1815 | Creeping water bug | 119 | Species | Taxom |
| Neazoniidae Szwedo, 2007 | | 3 | Species | Taxom |
| Neopsylloididae Becker-Migdi..., 1985 | | 3 | Species | Taxom |
| Nepidae Latreille, 1802 | Back-swimmer Water-boatmen | 83 | Species | Taxom |
| Ninidae Barber, 1956 | | 5 | Species | Taxom |
| Nogodinidae Melichar, 1898 | | 129 | Species | Taxom |
| Notonectidae Latreille, 1802 | Back Swimmers | 152 | Species | Taxom |
| Ochteridae Kirkaldy, 1906 | Velvety shore bug | 4 | Species | Taxom |
| Omaniidae Cobben, 1970 | Intertidal dwarf bug | 3 | Species | Taxom |
| Ortheziidae Green, 1896 | Ensign coccids | 77 | Species | Taxom |
| Oviparosiphidae Shaposhnikov, 1979 | | 17 | Species | Taxom |
| Oxycarenidae Stål, 1862 | | 56 | Species | Taxom |
| Pachygronthidae Stål, 1865 | | 25 | Species | Taxom |
| Pachymeridiidae Handlirsch, 1906 | | 12 | Species | Taxom |
| Pachytroctidae Enderlein, 1911 | Thick Barklice | 28 | Species | Taxom |
| Palaeoaphididae Richards, 1966 | | 7 | Species | Taxom |
| Palaeontinidae Handlirsch, 1906 | Giant cicadas | 82 | Species | Taxom |
| Parastrachiidae Oshanin, 1922 | | 1 | Species | Taxom |
| Parvaverrucosidae Poinar & Brown, 2006 | | 1 | Species | Taxom |
| Pedicinidae Enderlein, 1904 | | 6 | Species | Taxom |
| Pediculidae Leach, 1817 | | 2 | Species | Taxom |
| Pennygullaniidae Koteja & Azar, 2008 | | 1 | Species | Taxom |
| Pentatomidae Leach, 1815 | Lesser shield bugs | 348 | Species | Taxom |
| Pereboriidae Zalessky, 1930 | | 2 | Species | Taxom |
| Perforissidae Shcherbakov, 2007 | | 3 | Species | Taxom |
| Peripsocidae Roesler, 1944 | Stout Barklice | 144 | Species | Taxom |
| Phacopteronidae Heslop-Harrison, 1958 | | 6 | Species | Taxom |
| Philopteridae Burmeister, 1830 | | 248 | Species | Taxom |
| Philotarsidae Pearman, 1936 | Loving Barklice | 23 | Species | Taxom |
| Phlaeothripidae Uzel, 1895 | Thrips | 1293 | Species | Taxom |
| Phoenicococcidae Stickney, 1934 | Palm scales | 1 | Species | Taxom |
| Phylloxeridae Herrich-Scha..., 1854 | Phylloxeran Aphids | 11 | Species | Taxom |
| Piesmatidae Amyot & Audi..., 1843 | Ash grey leaf bug | 19 | Species | Taxom |
| Pincombeidae Tillyard, 1922 | | 1 | Species | Taxom |
| Pityococcidae Mckenzie, 1942 | | 2 | Species | Taxom |
| Plataspidae (Dallas, 1851) | | 18 | Species | Taxom |
| Plataspididae (Dallas, 1851) | | 24 | Species | Taxom |
| Pleidae Fieber, 1817 | Pigmy backswimmers | 16 | Species | Taxom |
| Plokiophilidae China, 1953 | Spider web bug | 1 | Species | Taxom |
| Polyctenidae Westwood, 1874 | Bat bugs | 6 | Species | Taxom |
| Polyplacidae Fahrenholz, 1912 | Spiny rat lice | 113 | Species | Taxom |
| Primipentatomidae Yao, Cai, Ri..., 2013 | | 5 | Species | Taxom |
| Prionoglarididae Badonnel, 1951 | Large-winged Psocids | 4 | Species | Taxom |
| Procercopidae Handlirsch, 1906 | | 26 | Species | Taxom |
| Progonocimicidae Handlirsch, 1906 | | 47 | Species | Taxom |
| Prosbolidae Handlirsch, 1906 | | 4 | Species | Taxom |
| Protocoridae Handlirsch, 1906 | | 3 | Species | Taxom |
| Protopsyllidiidae Becker-Migdi..., 1960 | | 29 | Species | Taxom |
| Protroctopsocidae Smithers, 1972 | | 1 | Species | Taxom |
| Pseudocaeciliidae Pearman, 1936 | False Lizard Barklice | 143 | Species | Taxom |
| Pseudococcidae Heymons, 1915 | Mealy Bugs | 846 | Species | Taxom |
| Psilopsocidae Roesler, 1944 | | 2 | Species | Taxom |
| Psocidae Samouelle, 1819 | Common bark louse | 391 | Species | Taxom |
| Psoquillidae Lienhard & S..., 2002 | Bird Nest Barklice | 6 | Species | Taxom |
| Psyllidae Latreille, 1807 | Jumping plant lice | 924 | Species | Taxom |
| Psyllipsocidae Enderlein, 1903 | Cave Barklice | 26 | Species | Taxom |
| Pthiridae Leach, 1817 | | 2 | Species | Taxom |
| Ptiloneuridae Eertmoed, 1973 | | 4 | Species | Taxom |
| Putoidae Beardsley, 1969 | Giant mealybugs | 30 | Species | Taxom |
| Pyrrhocoridae Dohrn, 1859 | Cotton stainers | 31 | Species | Taxom |
| Qinococcidae Wu, 2022 | | 10 | Species | Taxom |
| Qiyangiricaniidae Szwedo, Wang..., 2011 | | 1 | Species | Taxom |
| Ratemiidae Kim and Ludwig, 1978 | | 1 | Species | Taxom |
| Reduviidae Latreille, 1807 | Assassin and thread-legged bugs | 2497 | Species | Taxom |
| Rhizoecidae Williams, 1969 | | 40 | Species | Taxom |
| Rhopalidae Amyot & Serv..., 1843 | Rhopalid Bugs | 106 | Species | Taxom |
| Rhyparochromidae Amyot & Serv..., 1843 | Dirt-colored Seed Bugs | 601 | Species | Taxom |
| Ricaniidae Amyot & Audi..., 1843 | | 185 | Species | Taxom |
| Ricinidae Neumann, 1890 | | 1 | Species | Taxom |
| Saaloscytinidae Brauckmann, ..., 2006 | | 1 | Species | Taxom |
| Saldidae Amyot and Se..., 1843 | Shore bug | 158 | Species | Taxom |
| Schizopteridae Reuter, 1891 | Jumping ground bugs | 38 | Species | Taxom |
| Scutelleridae Leach, 1815 | Jewel bugs | 82 | Species | Taxom |
| Scytinopteridae Handlirsch, 1906 | | 2 | Species | Taxom |
| Serafinidae Koteja, 2008 | | 2 | Species | Taxom |
| Serpentivenidae Shcherbakov, 1984 | | 2 | Species | Taxom |
| Shaposhnikoviidae Kononova, 1976 | | 3 | Species | Taxom |
| Shurabellidae Popov, 1971 | | 6 | Species | Taxom |
| Sinaphididae Zhang & al., 1989 | | 2 | Species | Taxom |
| Sinoalidae Wang & Szwedo, 2012 | | 7 | Species | Taxom |
| Sinojuraphididae Huang & Nel, 2008 | | 1 | Species | Taxom |
| Sphaeropsocidae Kolbe, 1883 | | 2 | Species | Taxom |
| Steingeliidae Morrison, 1927 | | 3 | Species | Taxom |
| Stenopsocidae Pearman, 1936 | Narrow Barklice | 109 | Species | Taxom |
| Stenurothripidae Bagnall, 1923 | | 1 | Species | Taxom |
| Szelegiewicziidae Wegierek, 1989 | | 1 | Species | Taxom |
| Tachardiidae Green, 1896 | Lac insects | 53 | Species | Taxom |
| Tessaratomidae Stål, 1864 | Giant shield bug | 176 | Species | Taxom |
| Tettigarctidae Distant, 1905 | Hairy cicada | 23 | Species | Taxom |
| Tettigometridae Germar, 1821 | | 45 | Species | Taxom |
| Thaumastocoridae Kirkaldy, 1908 | Palm bug | 6 | Species | Taxom |
| Thelaxidae (Baker, 1920) | | 1 | Species | Taxom |
| Thripidae Stevens, 1829 | Common thrips | 982 | Species | Taxom |
| Thyreocoridae Amyot and Se..., 1843 | Black bugs | 1 | Species | Taxom |
| Tingidae Laporte, 1832 | Lace bug | 1094 | Species | Taxom |
| Torirostratidae Yao, Cai, Sh..., 2014 | | 1 | Species | Taxom |
| Torrirostratidae Yao & al., 2014 | | 1 | Species | Taxom |
| Trichodectidae Kellogg, 1896 | | 45 | Species | Taxom |
| Trichopsocidae Pearman, 1936 | Lash-faced psocid | 3 | Species | Taxom |
| Triozidae Löw, 1879 | Jumping plant lice | 307 | Species | Taxom |
| Trisegmentatidae Zhang, Sun &..., 1994 | | 1 | Species | Taxom |
| Troctopsocidae Mockford, 1967 | | 13 | Species | Taxom |
| Trogiidae Enderlein, 1903 | Granary Booklice | 22 | Species | Taxom |
| Tropiduchidae Stål, 1866 | Tropiduchid Planthoppers | 227 | Species | Taxom |
| Ulopidae (Le Peletier ..., 1825) | | 43 | Species | Taxom |
| Uninervidae Becker-Migdi..., 1951 | | 1 | Species | Taxom |
| Urostylidae (Dallas, 1851) | | 25 | Species | Taxom |
| Urostylididae Dallas, 1851 | | 1 | Species | Taxom |
| Veliidae Amyot & Serv..., 1843 | Broad-shouldered bugs | 426 | Species | Taxom |
| Velocipedidae Bergroth, 1891 | Fast-footed bugs | 19 | 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 |
| Xylococcidae (Pergrande, 1898) | | 9 | Species | Taxom |
| Yuripopovinidae Azar & al., 2011 | | 2 | Species | Taxom |
