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| Oreocossus politzari Yakovlev & Saldaitis, 2011 |
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| Oreometra vittata Aurivillius, 1910 |
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| Orithrepta edwardsi Collenette, 1939 |
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| Orphanostigma latimarginalis (Walker, 1859) |
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| Ortharbela tetrasticta (Hampson, 1910) |
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| Orthogonioptilum adiegetum Karsch, 1893 |
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| Oruza divisa (Walker, 1862) |
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| Oruza hermannstaudei Hacker, 2019 |
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Hacker H. H. 2019a. Biogeograpy; Boletobiinae (Erebidae). Moths of Africa. Systematic and illustrated catalogue of the Heterocera (Lepidoptera) of Africa. Volume 1. page: 481 |
| Osmanthedon domaticola Agassiz & Kallies, 2018 |
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