| Parisotoma Bagnall, 1940 |
| Parisotoma ekmani Fjellberg, 1977 |
| Parisotoma notabilis (Schäffer, 1896) |
| Parisotoma tariva Wray, 1953 |
| Proisotoma Börner, 1901 |
| Proisotoma beta Christiansen & Bellinger, 1980 |
| Proisotoma bulba Christiansen & Bellinger, 1980 |
| Proisotoma centralis Denis, 1931 |
| Proisotoma frisoni Folsom, 1937 |
| Proisotoma immersa (Folsom, 1924) |
| Proisotoma intermixta Handschin, 1928 |
| Proisotoma minima (Absolon, 1901) |
| Proisotoma minuta (Tullberg, 1871) |
| Proisotoma titusi Folsom, 1937 |
| Proisotominae Stach, 1947 |
| Pseudisotoma Handschin, 1924 |
| Pseudisotoma monochaeta (Kos, 1942) |
| Pseudisotoma sensibilis (Tullberg, 1876) |
| Semicerura Maynard, 1951 |
| Semicerura bishopi Maynard, 1951 |