| Thecla imma Prittwitz, 1865 |
| Thecla inconspicua Lathy, 1930 |
| Thecla ines Edwards, 1882 |
| Thecla infrequens Weeks, 1901 |
| Thecla inoa Godman & Salvin, 1887 |
| Thecla insignis Godman & Salvin, 1887 |
| Thecla iopas Godman & Salvin, 1887 |
| Thecla ira Hewitson, 1867 |
| Thecla iroides Boisduval, 1852 |
| Thecla iroides var. immaculata Cockle, 1910 |
| Thecla istapa Reakirt, 1867 |
| Thecla itys Edwards, 1882 |
| Thecla ivelia Gosse, 1880 |
| Thecla jada Hewitson, 1867 |
| Thecla jalan Reakirt, 1867 |
| Thecla janthina Hewitson, 1867 |
| Thecla janthodonia Dyar, 1918 |
| Thecla joya Dognin, 1895 |
| Thecla juanita Scudder, 1868 |
| Thecla juicha Reakirt, 1867 |