| Sepaicutea fisheri Lane, 1972 |
| Skillmania Santos-Silva, Nascimento & Wappes, 2019 |
| Skillmania obrienorum Santos-Silva, Nascimento & Wappes, 2019 |
| Smodicini Lacordaire, 1868 |
| Smodicum Haldeman, 1847 |
| Smodicum clancularium Martins, 1975 |
| Smodicum pacificum Linsley, 1934 |
| Smodicum parandroides Bates, 1884 |
| Solenopterini Lacordaire, 1868 |
| Spalacopsis Newman, 1842 |
| Spalacopsis fusca Gahan, 1892 |
| Spalacopsis howdeni TySon, 1970 |
| Spalacopsis lobata Breuning, 1942 |
| Spalacopsis protensa (Pascoe, 1871) |
| Spalacopsis similis Gahan, 1892 |
| Spalacopsis texana Casey, 1891 |
| Spalacopsis variegata Bates, 1880 |
| Sphaenothecus Dupont, 1838 |
| Sphaenothecus argenteus Bates, 1880 |
| Sphaenothecus bilineatus (Gory, 1831) |