| Thecla kalikimaka Clench, 1944 |
| Thecla keila Hewitson, 1869 |
| Thecla labes Druce, 1907 |
| Thecla laothoe Godman & Salvin, 1887 |
| Thecla latagus Godman & Salvin, 1887 |
| Thecla lauta Draudt, 1918 |
| Thecla leda Edwards, 1882 |
| Thecla lemnos Druce, 1890 |
| Thecla lemona Hewitson, 1874 |
| Thecla lenis Capronnier, 1874 |
| Thecla leucania Hewitson, 1868 |
| Thecla ligurina Hewitson, 1874 |
| Thecla lisus (Stoll, 1790) |
| Thecla literatus Druce, 1907 |
| Thecla loki Skinner, 1907 |
| Thecla longula Hewitson, 1868 |
| Thecla lotis Goodson, 1945 |
| Thecla lucagus Godman & Salvin, 1887 |
| Thecla lucaris Weeks, 1901 |
| Thecla lugubris Möschler, 1877 |