| Inachoididae Dana, 1851 |
| Microrhynchus Bell, 1835 |
| Microrhynchus depressus Bell, 1835 |
| Microrhynchus gibbosus Bell, 1835 |
| Paradasygyius Garth, 1958 |
| Paradasygyius depressus (Bell, 1835) |
| Pyromaia Stimpson, 1871 |
| Pyromaia arachna Rathbun, 1924 |
| Pyromaia cuspidata Stimpson, 1871 |
| Pyromaia tuberculata (Lockington, 1877) |
| Pyromaia tuberculata subsp. mexicana (Rathbun, 1893) |
| Pyromaia tuberculata subsp. tuberculata (Lockington, 1877) |
| Stenorhynchus Lamarck, 1818 |
| Stenorhynchus debilis (Smith, 1871) |
| Stenorhynchus seticornis (Herbst, 1788) |
| Stenorhynchus yangi Goeke, 1989 |