| Astiphromma mexicanus (Ashmead, 1894) |
| Asynida Gistel, 1848 |
| Ateleophadnus Cameron, 1905 |
| Athyreodon Ashmead, 1900 |
| Athyreodon apicalis (Schmiedeknecht, 1908) |
| Athyreodon atriventris (Cresson, 1874) |
| Athyreodon atriventris subsp. armstrongi Hooker, 1912 |
| Athyreodon atriventris subsp. gigas (Kriechbaumer, 1901) |
| Athyreodon cyaneiventris Brues & Richardson, 1913 |
| Athyreodon grenadensis (Ashmead, 1900) |
| Athyreodon ornatus (Szépligeti, 1905) |
| Athyreodon rivinae (Porter, 1980) |
| Athyreodon rufothorax (Cameron, 1886) |
| Athyreodon thoracicus Ashmead, 1900 |
| Atmetus Förster, 1868 |
| Atopognathus Cushman, 1919 |
| Atopognathus collaris (Cushman, 1919) |
| Atoponeura Szépligeti, 1905 |
| Atopotrophos Cushman, 1940 |
| Atopotrophos bucephalus (Cresson, 1868) |