List of Genera
- Thalkethops Crabill, 1960
- Thalthybius Attems, 1900
- Theatops Newport, 1844
- Thereulla Chamberlin, 1955
- Thereuonema Verhoeff, 1904
- Thereuopoda Verhoeff, 1904
- Thereuopodina Verhoeff, 1905
- Thereuopriona Verhoeff, 1936
- Thereuoquima Bücherl, 1949
- Thindyla Chamberlin, 1955
- Thracophilus Verhoeff, 1926
- Tidabius Chamberlin, 1913
- Tidops Chamberlin, 1915
- Tigobius Chamberlin, 1916
- Timpina Chamberlin, 1912
- Titanophilus Chamberlin, 1915
- Tomotaenia Cook, 1895
- Tonkinodentus Schileyko, 1992
- Trachycormocephalus Kraepelin, 1903
- Trematoptychus Peters, 1862
- Trematorya Brölemann, 1909
- Tretechthus Cook, 1896
- Trigonocryptops Verhoeff, 1906
- Triporobius Silvestri, 1917
- Tropobius Chamberlin, 1943
