| Gerstaeckeria lineatocollis Champion, 1910 |
| Gerstaeckeria mutillaria (Gerstaecker, 1860) |
| Gerstaeckeria profusa (Casey, 1892) |
| Gerstaeckeria tolucana Champion, 1910 |
| Gerstaeckeria turbida (LeConte, 1876) |
| Gerstaeckeria unicolor Fisher, 1928 |
| Glochinocerus Blandford, 1904 |
| Glochinocerus gemellus Blandford, 1904 |
| Glyptobaris Casey, 1892 |
| Glyptobaris lecontei Champion, 1909 |
| Glyptobaris rugata (Boheman, 1844) |
| Glyptobaris spinigera Champion, 1909 |
| Gnatholeptus Blackman, 1943 |
| Gnatholeptus semiermis (Numberg, 1963) |
| Gnathotrichus Eichhoff, 1869 |
| Gnathotrichus alniphagus Wood, 1984 |
| Gnathotrichus bituberculatus Blandford, 1904 |
| Gnathotrichus consentaneus Blandford, 1904 |
| Gnathotrichus deleoni Blackman, 1942 |
| Gnathotrichus dentatus Wood, 1967 |