| Glyptoma sculptile Erichson, 1840 |
| Glyptomina Newton & Thayer, 1992 |
| Gnathymenus Solier, 1849 |
| Gnathymenus fenyesi (Bernhauer, 1910) |
| Gnathymenus hamulus Herman, 1981 |
| Gnypeta Thompson, 1858 |
| Gnypeta mexicana Sharp, 1883 |
| Gnypeta nigricans Sharp, 1883 |
| Goerius Westwood, 1827 |
| Goniacerini Reitter, 1882 |
| Goniaceritae Reitter, 1882 |
| Gyrohypnus Samouelle, 1819 |
| Gyrohypnus bipartitus Casey, 1906 |
| Gyrohypnus fragilis Casey, 1906 |
| Gyrohypnus infumatus Casey, 1906 |
| Gyrophaena Mannerheim, 1830 |
| Gyrophaena (Agaricophaena) Reitter, 1909 |
| Gyrophaena (Agaricophaena) mutanda Fenyes, 1918 |
| Gyrophaena aequalis Bernhauer, 1910 |
| Gyrophaena arrowi Bernhauer, 1910 |