| Thecla sito Boisduval, 1836 |
| Thecla siva Edwards, 1874 |
| Thecla smaragdus Druce, 1907 |
| Thecla smilacis Boisduval & LeConte, 1835 |
| Thecla socigena Hewitson, 1877 |
| Thecla spadix Edwards, 1881 |
| Thecla spinetorum Hewitson, 1867 |
| Thecla spurina Hewitson, 1867 |
| Thecla spurina subsp. carioca Ebert, 1965 |
| Thecla stagira Hewitson, 1867 |
| Thecla suada Hewitson, 1877 |
| Thecla subflorens Schaus, 1913 |
| Thecla sycena Hewitson, 1874 |
| Thecla syedra Hewitson, 1867 |
| Thecla syllis Godman & Salvin, 1887 |
| Thecla sylvinus Boisduval, 1852 |
| Thecla syvix Dyar, 1916 |
| Thecla tabena Godman & Salvin, 1887 |
| Thecla tacita Edwards, 1881 |
| Thecla tamos Godman & Salvin, 1887 |