| Thalpochares Lederer, 1853 |
| Thalpochares accincta Felder & Rogenhofer, 1874 |
| Thalpochares mundula Zeller, 1872 |
| Thioptera Franclemont, 1950 |
| Thyatirodes Hampson, 1908 |
| Thyatirodes godalma Schaus, 1904 |
| Thyria Guenée, 1852 |
| Thyria aurifundens Walker, 1858 |
| Trachea Ochsenheimer, 1816 |
| Trachea nigrecens Schaus, 1911 |
| Trichestra Hampson, 1905 |
| Trichestra bicatenata Dyar, 1923 |
| Trichestra stigmatosa Dyar, 1910 |
| Trichoplusia McDunnough, 1944 |
| Trichoplusia ni (Hübner, 1803) |
| Trichordestra McCabe, 1980 |
| Trichordestra prodeniformis (Smith, 1888) |
| Tripudia Grote, 1877 |
| Tripudia nubicice (Dyar, 1919) |
| Trogotorna Hampson, 1910 |