| Orthoxybelus Minkiewicz, 1934 |
| Oryttus Spinola, 1836 |
| Oryttus lapazae R. Bohart, 1968 |
| Othyreus Marshakov, 1977 |
| Oxybelini Leach, 1815 |
| Oxybelus Latreille, 1796 |
| Oxybelus argenteopilosus Cameron, 1891 |
| Oxybelus aztecus Cameron, 1891 |
| Oxybelus bugabensis Cameron, 1891 |
| Oxybelus coloratus R. Bohart, 1993 |
| Oxybelus frontalis Robertson, 1889 |
| Oxybelus hurdi R. Bohart & Schlinger, 1956 |
| Oxybelus longispina Cameron, 1891 |
| Oxybelus manni Rohwer, 1909 |
| Oxybelus melanitus R. Bohart, 1993 |
| Oxybelus mexicanus Robertson, 1889 |
| Oxybelus rhodopyga R. Bohart, 1993 |
| Oxybelus ventralis Fox, 1894 |
| Oxycrabro Leclercq, 1961 |
| Papuacrabro Tsuneki, 1983 |