| Schoenicus viridis Champion, 1884 |
| Schoenicus yucatanensis Champion, 1884 |
| Scotobaenus LeConte, 1859 |
| Scotobaenus parallelus LeConte, 1859 |
| Sicharbas Champion, 1884 |
| Sicharbas lobatus Champion, 1884 |
| Sicinus Champion, 1886 |
| Sicinus guatemalensis Champion, 1886 |
| Sitophagus Mulsant, 1854 |
| Sitophagus castaneus Reitter, 1877 |
| Sitophagus cynaeoides Champion, 1886 |
| Sitophagus hololeptoides (Laporte, 1840) |
| Sitophagus laticollis Kulzer, 1961 |
| Sitophagus lecontei Horn, 1870 |
| Sitophagus solieri Mulsant, 1854 |
| Sitophagus uniformis Doyen, 1990 |
| Soemias Champion, 1884 |
| Soemias minuta Champion, 1884 |
| Spheniscus Kirby, 1819 |
| Spheniscus marginicollis J. Thomson, 1859 |