| Omiodes insolutalis Möschler, 1890 |
| Omiodes martyralis (Lederer, 1863) |
| Omiodes mostella (Dyar, 1912) |
| Omiodes simialis Guenée, 1854 |
| Omiodes stigmosalis (Warren, 1892) |
| Ommatospila Lederer, 1863 |
| Ommatospila narcaeusalis (Walker, 1859) |
| Omphisa Moore, 1886 |
| Omphisa brunnettalis Dyar, 1912 |
| Orobena Guenée, 1854 |
| Orobena octonalis Zeller, 1873 |
| Orphanostigma Warren, 1890 |
| Orphanostigma haemorrhoidalis (Guenée, 1854) |
| Ostrinia Hübner, 1825 |
| Ostrinia penitalis (Grote, 1876) |
| Oxyelophila W. T. M. Forbes, 1922 |
| Oxyelophila harpalis (Snellen, 1901) |
| Pachyarches Lederer, 1863 |
| Pachyarches lustralis Guenée, 1854 |
| Pachynoa Lederer, 1863 |