• Tarisa subspinosa (Germar, 1839)
• Tarisa subspinosa marismortui Linnavuori, 1960
• Tarisa subspinosa subspinosa (Germar, 1839)
• Tarisa virescens Herrich-Schaeffer, 1851
• Taurocalocoris samai Carapezza, 1998
• Taylorilygus apicalis (Fieber, 1861)
• Taylorilygus compactus Linnavuori, 1975
• Taylorilygus divergens (Reuter, 1901)
• Taylorilygus figuratus Linnavuori, 1975
• Taylorilygus maia Linnavuori & Van Harten, 2001
• Taylorilygus morosus Linnavuori, 1975
• Taylorilygus ornaticollis (Reuter, 1908)
• Taylorilygus simonyi (Reuter, 1903)
• Taylorilygus subdivergens Linnavuori, 1974
• Tectocoris diophthalmus (Thunberg, 1783)
• Telmatotrephes chinensis Lansbury, 1972
• Teloleuca altaica Vinokurov, 2009
• Teloleuca bifasciata (Thomson, 1871)
• Teloleuca branczikii (Reuter, 1891)
• Teloleuca kusnezowi Lindberg, 1934
• Teloleuca pellucens (Fabricius, 1779)
• Temnostethus (Ectemnus) reduvinus (Herrich-Schaeffer, 1850)
• Temnostethus (Ectemnus) reduvinus mesasiaticus Elov & Kerzhner, 1977
• Temnostethus (Ectemnus) reduvinus mongolicus Elov & Kerzhner, 1977
• Temnostethus (Ectemnus) reduvinus parilis (Horváth, 1891)
• Temnostethus (Ectemnus) reduvinus reduvinus (Herrich-Schaeffer, 1850)
• Temnostethus (Ectemnus) ulmi Elov & Kerzhner, 1977
• Temnostethus (Montandoniella) dacicus (Puton, 1888)
• Temnostethus (Temnostethus) distans Kerzhner, 1973
• Temnostethus (Temnostethus) gracilis Horváth, 1907
• Temnostethus (Temnostethus) longirostris (Horváth, 1907)
• Temnostethus (Temnostethus) lunula Wagner, 1952
• Temnostethus (Temnostethus) mirificus Yamada & Yasunaga, 2021
• Temnostethus (Temnostethus) pusillus (Herrich-Schaeffer, 1835)
• Temnostethus (Temnostethus) tibialis Reuter, 1888
• Temnostethus (Temnostethus) wichmanni Wagner, 1961
• Temnostethus Fieber, 1860
• Tempereocoris cerdanicus Péricart, 1995
• Tempyra biguttula Stål, 1874
• Tenagogonus kuiterti Hungerford & Matsuda, 1958
• Tenagovelia sjostedti Kirkaldy, 1908
• Tenerva Cachan, 1952
• Tenosius proletarius (Schaum, 1853)
• Teracrius namaquensis Stål, 1858
• Teratocoris antennatus (Boheman, 1852)
• Teratocoris caricis Kirkaldy, 1909
• Teratocoris coriaceus Vinokurov, 1995
• Teratocoris depressus Kerzhner, 1979
• Teratocoris paludum J. Sahlberg, 1870
• Teratocoris saundersi Douglas & Scott, 1869