| Ochlerus Spinola, 1837 |
| Ochlerus cinctus Spinola, 1837 |
| Ochlerus handlirschi Breddin, 1909 |
| Odmalea Bergroth, 1914 |
| Odmalea schaefferi (Barber, 1906) |
| Oebalus Stål, 1862 |
| Oebalus insularis Stål, 1872 |
| Oebalus mexicanus (Sailer, 1944) |
| Oebalus pugnax (Fabricius, 1775) |
| Olbia Stål, 1862 |
| Olbia caprina Stål, 1862 |
| Oplomus Spinola, 1837 |
| Oplomus dichrous (Herrich-Schäffer, 1838) |
| Oplomus mundus Stål, 1862 |
| Oplomus mutabilis Stål, 1862 |
| Oplomus pulcher Dallas, 1851 |
| Padaeus Stål, 1862 |
| Padaeus teapensis Distant, 1890 |
| Padaeus trivittatus Stål, 1872 |
| Padaeus veruccifer Stål, 1862 |