| Oedodactylus Fairmaire & Germain, 1861 |
| Oedodactylus aper Sharp, 1887 |
| Oedodactylus fauveli Sharp, 1886 |
| Oligolinus Casey, 1906 |
| Oligolinus beckeri Scheerpeltz, 1953 |
| Oligota Mannerheim, 1830 |
| Oligota (Holobus) Solier, 1849 |
| Oligota (Holobus) nova Bernhauer, 1929 |
| Oligota (Oligota) Mannerheim, 1830 |
| Oligota (Oligota) californica Casey, 1911 |
| Oligota (Oligota) congruens Casey, 1911 |
| Oligota (Oligota) esmeraldae Casey, 1911 |
| Oligota (Oligota) parva Kraatz, 1862 |
| Oligota (Oligota) pygmaea Kraatz, 1858 |
| Oligota apicata Erichson, 1837 |
| Oligota centralis Sharp, 1883 |
| Omaliinae MacLeay, 1825 |
| Omaliini MacLeay, 1825 |
| Omaliopsis Jeannel, 1940 |
| Omaliopsis ectopia Thayer, 2001 |