| Synemosyna americana (G. W. Peckham & E. G. Peckham, 1885) |
| Synemosyna decipiens (O. Pickard-Cambridge, 1896) |
| Synemosyna edwardsi Cutler, 1985 |
| Synemosyna maddisoni Cutler, 1985 |
| Tarkas Edwards , 2015 |
| Tarkas maculatipes (F. O. Pickard-Cambridge, 1901) |
| Terralonus Maddison, 1996 |
| Terralonus californicus (G. W. Peckham & E. G. Peckham, 1888) |
| Thiodina Simon, 1900 |
| Thiodina hespera Richman & Vetter, 2004 |
| Thiodina perian Bustamante & Ruiz, 2017 |
| Thiodina sylvana (Hentz, 1846) |
| Titanattus Peckham & Peckham |
| Titanattus saevus G. W. Peckham & E. G. Peckham, 1885 |
| Tomis F. O. Pickard-Cambridge , 1901 |
| Tomis palpalis F. O. Pickard-Cambridge, 1901 |
| Tulpius Peckham, 1896 |
| Tulpius hilarus G. W. Peckham & E. G. Peckham, 1896 |
| Zuniga G. W. Peckham & E. G. Peckham , 1892 |
| Zuniga magna G. W. Peckham & E. G. Peckham, 1892 |