| Menoeceus crassicornis Champion, 1888 |
| Mentes Champion, 1893 |
| Mentes cisteloides Doyen, 1990 |
| Meropria Borchmann, 1921 |
| Meropria glabrata (Mäklin, 1863) |
| Meropria unidentata (Champion, 1889) |
| Merotemnus Horn, 1870 |
| Merotemnus elongatus Horn, 1870 |
| Mesabates Champion, 1884 |
| Mesabates inaequalis Champion, 1892 |
| Mesabates latifrons Champion, 1884 |
| Mesabates spissicornis Champion, 1892 |
| Mesabatodes Casey, 1907 |
| Mesabatodes inaequalis (Champion, 1892) |
| Metopoloba Casey, 1907 |
| Metopoloba pruinosa (Horn, 1870) |
| Metopoloba pruinosa subsp. mexicana Freude, 1967 |
| Metopoloba pruinosa subsp. subpilosa Blaisdell, 1943 |
| Metopoloba pruinosa subsp. werneri Freude, 1967 |
| Metoponium Casey, 1907 |