| Gaediopsis (Eugaediopsis) setosa Coquillett, 1897 |
| Gaediopsis (Gaediophana) Brauer & Bergenstamm, 1893 |
| Gaediopsis (Gaediophana) lugubris (Wulp, 1890) |
| Gaediopsis (Gaediophana) monnula (Reinhard, 1951) |
| Gaediopsis (Gaediopsis) Brauer & Bergenstamm, 1891 |
| Gaediopsis (Gaediopsis) flavicauda (Wulp, 1890) |
| Gaediopsis (Gaediopsis) mexicana Brauer & Bergenstamm, 1891 |
| Gaediopsis (Gaediopsis) organensis (Townsend, 1908) |
| Gaediopsis (Gaediopsis) sierricola (Townsend, 1908) |
| Genea Rondani, 1850 |
| Genea longipalpis (Wulp, 1890) |
| Genea tenuirostris (James, 1947) |
| Geneoglossa Townsend, 1935 |
| Geneopsis Townsend, 1927 |
| Germariini Brauer & Bergenstamm, 1889 |
| Gigamyiopsis Reinhard, 1964 |
| Gigamyiopsis funebris Reinhard, 1964 |
| Gigantachinosoma Townsend, 1932 |
| Ginglymia Townsend, 1892 |
| Ginglymia devia Reinhard, 1962 |