| Gelasiminae Miers, 1886 |
| Gelasimus Latreille, 1817 |
| Gelasimus brevifrons Stimpson, 1860 |
| Gelasimus coloradensis Rathbun, 1894 |
| Gelasimus crenulatus Lockington, 1877 |
| Gelasimus gracilis Rathbun, 1894 |
| Gelasimus latimanus Rathbun, 1894 |
| Gelasimus mordax Smith, 1870 |
| Gelasimus pugnax Smith, 1870 |
| Gelasimus rapax Smith, 1870 |
| Gelasimus subcylindrica Stimpson, 1859 |
| Leptuca Bott, 1973 |
| Leptuca coloradensis (Rathbun, 1894) |
| Leptuca crenulata (Lockington, 1877) |
| Leptuca latimanus (Rathbun, 1894) |
| Leptuca leptodactyla (Rathbun, 1898) |
| Leptuca musica (Rathbun, 1914) |
| Leptuca panacea (Novak & Salmon, 1974) |
| Leptuca pugilator (Bosc, 1802) |
| Leptuca speciosa (Ives, 1891) |