| Catocentrus Walsh, 1873 |
| Catomicrus Thomson, 1888 |
| Celor Kokujev, 1901 |
| Cenodontis Townes, 1969 |
| Centeterus Wesmael, 1845 |
| Centeterus alpinus (Cameron, 1885) |
| Ceratogastra Ashmead, 1900 |
| Ceratogastra ornata Say, 1836 |
| Ceratogastra sicca Townes, 1978 |
| Ceratogastra trifasciata Cushman, 1927 |
| Ceratophygadeuon Viereck, 1924 |
| Ceratophygadeuon politus Townes, 1983 |
| Ceratosoma Cresson, 1865 |
| Ceratosoma apicalis Cresson, 1865 |
| Ceratosoma fasciata Cresson, 1865 |
| Ceratosoma rubyata Davis, 1898 |
| Ceratospilus Szépligeti, 1905 |
| Cerda Cameron, 1904 |
| Cerda fuscipennis Ashmead, 1887 |
| Cestrus Townes & Townes, 1966 |