| Microchaetina mexicana (Townsend, 1892) |
| Microchaetina petiolata (Townsend, 1919) |
| Microchaetina valida (Townsend, 1892) |
| Microchaetogyne Townsend, 1931 |
| Microchaetogyne melaena (Wulp, 1891) |
| Microchira Brauer & Bergenstamm, 1893 |
| Microphthalma Macquart, 1843 |
| Microphthalma ascita Reinhard, 1953 |
| Microphthalma differens (Wulp, 1890) |
| Microphthalma disjuncta (Wiedemann, 1824) |
| Microphthalma obsoleta (Wulp, 1890) |
| Microphthalma pedalis Reinhard, 1953 |
| Microphthalma sordida Giglio-Tos, 1893 |
| Microphthalma vibrissata (Wulp, 1891) |
| Microtrichodes Macquart, 1846 |
| Microtrichomma Giglio-Tos, 1893 |
| Microtrichommodes Townsend, 1927 |
| Milonius Reinhard, 1955 |
| Mimologus Reinhard, 1955 |
| Minthohoughia Townsend, 1919 |