| Scientific name | Authorship | Rank | Status | Images | |
|---|---|---|---|---|---|
| Ophiusa hopei | Boisduval, 1833 | species | Accepted | ||
| Ophiusa legendrei | Viette, 1966 | species | Accepted | ||
| Ophiusa pelor | (Mabille, 1881) | species | Accepted | ||
| Ophiusa tirhaca | (Cramer, 1777) | species | Accepted | ||
| Ophiusa waterloti | Viette, 1982 | species | Accepted | ||
| Opogona masoalella | (Viette, 1955) | species | Accepted | ||
| Opogona omoscopa | (Meyrick, 1893) | species | Accepted | ||
| Opogona sacchari | (Bojer, 1856) | species | Accepted | ||
| Opogona sogaella | Viette, 1985 | species | Accepted | ||
| Opula chopardi | (Viette, 1954) | species | Accepted | ||
| Opula lineata | Whalley, 1967 | species | Accepted | ||
| Oraesia emarginata | (Fabricius, 1794) | species | Accepted | ||
| Oraesia emarginata malgassica | Hacker & Legrain, 2013 | subspecies | Accepted | ||
| Oraesia pierronii | (Mabille, 1880) | species | Accepted | ||
| Oraesia provocans | Walker, 1858 | species | Accepted | ||
| Oraesia triobliqua | (Saalmüller, 1880) | species | Accepted | ||
| Orana delicata | Griveaud, 1977 | species | Accepted | ||
| Orana grammodes | (Hering, 1926) | species | Accepted | ||
| Orana palea | Griveaud, 1977 | species | Accepted | ||
| Orbamia pauperata | Herbulot, 1966 | species | Accepted | ||
| Oretopsis vohilava | (Viette, 1954) | species | Accepted | ||
| Orophia madagascariensis | (Viette, 1951) | species | Accepted | ||
| Orphanostigma haemorrhoidalis | (Guenée, 1854) | species | Accepted | ||
| Orphanostigma latimarginalis | (Walker, 1859) | species | Accepted | ||
| Orphnophanes ankarampotsyalis | (Marion & Viette, 1956) | species | Accepted |