- Systellonotus villiersi Ribaut, 1941
- Systellonotus wagneri Linnavuori, 1964
- Systellonotus weberi Wagner, 1955
- Tachengia ascra China, 1925
- Tachengia viridula Hsiao & Cheng, 1977
- Tachengia yunnana Hsiao & Cheng, 1977
- Taeniophorus hyalinus Linnavuori, 1952
- Taiwanaptera glabra Heiss & Nagashima, 2008
- Taiwanaptera guangxiana Bai, Heiss & Cai, 2017
- Taiwanaptera montana Bai, Heiss & Cai, 2017
- Taiwanocapsus luteocordatus Yasunaga, Yamada & Tsai, 2023
- Tamaonia montana Hsiao, 1973
- Tamaonia pilosa China, 1940
- Tamaonia yunnana Hsiao, 1973
- Tanytingis takahashii Drake, 1939
- Tapeinus fuscipennis (Stål, 1874)
- Tapeinus singularis (Walker, 1873)
- Taphropeltus andrei (Puton, 1877)
- Taphropeltus contractus (Herrich-Schaeffer, 1835)
- Taphropeltus hamulatus (Thomson, 1870)
- Taphropeltus intermedius (Puton, 1881)
- Taphropeltus nervosus (Fieber, 1861)
- Taphropeltus ornatus Linnavuori, 1978
- Tapirocoris annulatus Hsiao & Ren, 1981
- Tapirocoris densus Hsiao & Ren, 1981
- Tapirocoris limbatus Miller, 1954
- Tapirula pirula Carapezza, 1997
- Tarichea chinensis (Dallas, 1851)
- Tarisa aeliodes (Bolívar, 1879)
- Tarisa camelus Reuter, 1901
- Tarisa ciliaris Jakovlev, 1901
- Tarisa dimidiatipes Puton, 1874
- Tarisa elevata Reuter, 1901
- Tarisa flavescens Amyot & Serville, 1843
- Tarisa gibbosa (Bolívar, 1879)
- Tarisa igdirensis Lodos & Önder, 1978
- Tarisa leprosa Puton, 1874
- Tarisa osmanica Hoberlandt, 1956
- Tarisa pallescens Jakovlev, 1871
- Tarisa salsae Kerzhner, 1964
- Tarisa setulosa Montandon, 1900
- Tarisa somalica Linnavuori, 1975
- Tarisa spinifer Reuter, 1901
- 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