| Tachinoides Brauer & Bergenstamm, 1889 |
| Tachinomyia Townsend, 1892 |
| Tachinomyia variata Curran, 1926 |
| Tachinophytopsis Townsend, 1927 |
| Tachinosoma Townsend, 1927 |
| Tachinosomopsis Blanchard, E. E., 1941 |
| Technamyia Reinhard, 1975 |
| Technamyia cinereola Reinhard, 1975 |
| Telothyria Wulp, 1890 |
| Telothyria cupreiventris Wulp, 1890 |
| Telothyria hamata Wulp, 1890 |
| Telothyria illucens Wulp, 1890 |
| Telothyria ochrifrons (Wulp, 1890) |
| Telothyria placida Wulp, 1890 |
| Telothyria relicta Wulp, 1890 |
| Telothyria rufostriata Wulp, 1890 |
| Telothyriini Townsend, 1927 |
| Tesseracephalus Reinhard, 1955 |
| Tesseracephalus lenis Reinhard, 1955 |
| Thelaira Robineau-Desvoidy, 1830 |