| Scientific name | Authorship | Rank | Status | Images | |
|---|---|---|---|---|---|
| Oglasa trimacula | (Saalmüller, 1891) | species | Accepted | ||
| Ogoa melanocera | (Mabille, 1879) | species | Accepted | ||
| Ogoa oberthueri | Rothschild, 1916 | species | Accepted | ||
| Ogoa vitrina | (Mabille, 1879) | species | Accepted | ||
| Ogovia ebenaui | (Viette, 1965) | species | Accepted | ||
| Oiketicus saclavus | Mabille, 1890 | species | Accepted | ||
| Olapa malagasy | Griveaud, 1977 | species | Accepted | ||
| Olapa notia | Collenette, 1959 | species | Accepted | ||
| Olapa terina | Collenette, 1959 | species | Accepted | ||
| Oligobalia viettei | Diakonoff, 1988 | species | Accepted | ||
| Oligostigma flavialbalis | Hampson, 1917 | species | Accepted | ||
| Oligostigma rufiterminalis | Hampson, 1917 | species | Accepted | ||
| Omiodes indicata | (Fabricius, 1775) | species | Accepted | ||
| Omocenops micacea | (Butler, 1882) | species | Accepted | ||
| Omocenops simillimus | Hering, 1957 | species | Accepted | ||
| Omocerina viettei | Kiriakoff, 1970 | species | Accepted | ||
| Omphalepia dujardini | Viette, 1967 | species | Accepted | ||
| Omphax bara | Herbulot, 1972 | species | Accepted | ||
| Omphax interfulgens | Herbulot, 1954 | species | Accepted | ||
| Omphax neglecta | Herbulot, 1977 | species | Accepted | ||
| Omphisa vaovao | Viette, 1973 | species | Accepted | ||
| Ophiosema viettei | (Berio, 1956) | species | Accepted | ||
| Ophiusa anomala | (Berio, 1956) | species | Accepted | ||
| Ophiusa cancellata | (Saalmüller, 1891) | species | Accepted | ||
| Ophiusa grandidieri | (Viette, 1966) | species | Accepted |