| Hopliini Latreille, 1829 |
| Hoplopyga Thompson, 1880 |
| Hoplopyga liturata Olivier, 1789 |
| Hoplopyga ocellata Gory & Percheron, 1833 |
| Howdenocarus Hardy, 1978 |
| Howdenocarus mexicanus Hardy, 1978 |
| Imelda Hewitson, 1870 |
| Imelda constricticollis (Bates, 1890) |
| Inca Le Peletier & Audinet-Serville, 1825 |
| Inca clathrata Olivier, 1792 |
| Inca clathrata subsp. sommeri Westwood, 1845 |
| Incina Burmeister, 1842 |
| Iridisoma Delgado & Morón, 1991 |
| Iridisoma acahuizotlensis Delgado & Morón, 1991 |
| Ischnoscelis Burmeister, 1842 |
| Ischnoscelis hoepfneri Gory & Percheron, 1833 |
| Isonychus Mannerheim, 1829 |
| Isonychus arizonensis Howden, 1959 |
| Isonychus aurantiacus Burmeister, 1855 |
| Isonychus limbatus Burmeister, 1855 |