Genres
| Genre | Auteur | Cétoines |
|---|---|---|
| Idiovalgus | Arrow, | |
| Inca | Lepelletier & Serville, 1828 | |
| Incala (Incala) | J. Thomson, 1857 | 27 |
| Incala (Incalidia) | Janson, 1907 | 2 |
| Inclassable | Inclassable | 1 |
| Indognorimus | Krikken, 2009 | |
| Indotrichius | Krikken, 2009 | |
| Ingrisma | Fairmaire, 1893 | |
| Inhambane | Péringuey, 1907 | |
| Iridisoma | Delgado-Castillo & Moron, 1991 | |
| Ischiopsopha (Homoeopsopha) | Schürhoff, 1934 | |
| Ischiopsopha (Ischiopsopha) | Gestro, 1874 | |
| Ischnoscelis | Burmeister, 1842 | |
| Ischnostomiella | Krikken, 1978 | 2 |
| Ischnotarsia | Kraatz, 1880 | 8 |
| Ischnovalgus | Kolbe, 1897 | 6 |
| Ixorida (Aurelia) | J. Thomson, 1880 | |
| Ixorida (Ixorida) | J. Thomson, 1880 | |
| Ixorida (Mecinonota) | Kraatz, 1892 | |
| Ixorida (Oncosterna) | J. Thomson, 1880 |