| Macrophatnus Cameron, 1905 |
| Macrophion Szépligeti, 1905 |
| Macrostema Shestakov, 1923 |
| Magnibucca Morley, 1913 |
| Mallochia Viereck, 1912 |
| Mallochia admirabilis (Cresson, 1874) |
| Mallochia agenioides Viereck, 1912 |
| Mallochia bimaculata (Cresson, 1874) |
| Mallochia exilis (Cresson, 1874) |
| Mallochia pyralidis Wharton, 1985 |
| Matara Holmgren, 1868 |
| Matara carinifrons (Cameron, 1885) |
| Matara lecta (Cresson, 1868) |
| Matara notabilis (Cameron, 1885) |
| Matara suturalis (Brullé, 1846) |
| Matara tolteca (Cresson, 1868) |
| Mater Schulz, 1911 |
| Matsumuraius Ashmead, 1906 |
| Mecetron Townes, 1971 |
| Megalorhyssa Schulz, 1906 |