| Trachymyrmex uncifer Santschi, 1931 |
| Trachymyrmex vertebrata (Wheeler, 1911) |
| Trachymyrmex virginiana (Buckley, 1866) |
| Tranopelta Mayr, 1866 |
| Tranopelta amblyops (Emery, 1894) |
| Tranopelta columbica Forel, 1912 |
| Tranopelta gilva Mayr, 1866 |
| Tranopelta gilva var. brunnea Forel, 1909 |
| Tranopelta heyeri (Forel, 1901) |
| Trichomyrmex Mayr, 1865 |
| Trichomyrmex atomaria (Gerstäcker, 1859) |
| Trichomyrmex basalis (Smith, 1858) |
| Trichomyrmex destructor (Jerdon, 1851) |
| Trichomyrmex gracillima (Smith, 1861) |
| Trichomyrmex ominosa (Gerstäcker, 1859) |
| Trichomyrmex vexator (Smith, 1861) |
| Triglyphothrix Forel, 1890 |
| Triglyphothrix ceramensis Stitz, 1912 |
| Triglyphothrix mauricei Donisthorpe, 1946 |
| Triglyphothrix striatidens (Emery, 1889) |