| Muesebeckia Mason, 1957 |
| Muesebeckia coelebs Mason, 1969 |
| Muesebeckia concordia Mason, 1969 |
| Muesebeckia durango Mason, 1969 |
| Muesebeckia palmito Mason, 1969 |
| Muesebeckia serrata Mason, 1969 |
| Muesonia Sharkey & Wharton, 1994 |
| Muesonia sigalphoides Sharkey & Wharton, 1994 |
| Muiriella Fullaway, 1919 |
| Myosoma Brullé, 1846 |
| Myosoma durango Mason, 1978 |
| Myosoma eumystax Mason, 1978 |
| Myriola Shestakov, 1932 |
| Nealiolus Mason, 1974 |
| Nealiolus curculionis Fitch, 1859 |
| Nealiolus mexicanus Masner, 1976 |
| Nebartha Walker, 1860 |
| Neophanerotoma Szépligeti, 1908 |
| Neopius Gahan, 1917 |
| Neopius grenadanus Fischer, 1967 |