| Phasiopteryx Brauer & Bergenstamm, 1889 |
| Phasiostoma Townsend, 1915 |
| Phobetromyia Reinhard, 1964 |
| Phobetromyia dumalis Reinhard, 1964 |
| Phosococephalops Townsend, 1927 |
| Phryxe Robineau-Desvoidy, 1830 |
| Phryxe tolucana Reinhard, 1956 |
| Phyllomya Macquart, 1835 |
| Phyllomya pictipennis (Wulp, 1891) |
| Phytomyptera Rondani, 1845 |
| Phytomyptera aenea (Coquillett, 1895) |
| Phytomyptera saxatilis (Reinhard, 1952) |
| Phytomyptera triste (Reinhard, 1961) |
| Plagia Meigen, 1838 |
| Plagiomima Brauer & Bergenstamm, 1891 |
| Plagiomima faceta Reinhard, 1957 |
| Plagiomima incognita (Wulp, 1890) |
| Plagiomima rigidirostris (Wulp, 1890) |
| Plagiotachina Townsend, 1927 |
| Polistiopsis Townsend, 1915 |