| Acrochaeta Wiedemann, 1830 |
| Acrochaeta fasciata Wiedemann, 1830 |
| Acrochaeta flaveola (Bigot, 1879) |
| Acrochaeta mexicana Lindner, 1949 |
| Acrodesmia Enderlein, 1914 |
| Adoxomyia Bezzi, 1908 |
| Adoxomyia fenestrata (Macquart, 1846) |
| Adoxomyia marginata James, 1969 |
| Adoxomyia micheneri James, 1950 |
| Adoxomyia regularis James, 1969 |
| Aloipha Enderlein, 1914 |
| Aloiphina Lindner, 1949 |
| Analcoceroides Hollis, 1962 |
| Analcoceroides longicornis (Williston, 1900) |
| Anisoscapus McFadden, 1970 |
| Anisoscapus chlorovittatus McFadden, 1970 |
| Anisoscapus ochraceus McFadden, 1970 |
| Anoplodonta James, 1936 |
| Anoplodonta fratela (Williston, 1900) |
| Anoplodonta nigrirostris (Loew, 1866) |