| Opadosister longipes Helava, 1985 |
| Operclipygus Marseul, 1870 |
| Operclipygus dubius (Lewis, 1888) |
| Operclipygus propygidialis (Hinton, 1935) |
| Pachylopus Erichson, 1834 |
| Pachylopus consputus Bickhardt, 1916 |
| Pachylopus gaudens LeConte, 1851 |
| Pachylopus rossi Kovarik & Verity, 1999 |
| Paromalini Reitter, 1909 |
| Paromalus Erichson, 1834 |
| Paromalus (Isolomalus) Lewis, 1907 |
| Paromalus (Isolomalus) cordipygus Marseul, 1862 |
| Paromalus (Isolomalus) durangoensis (Casey, 1916) |
| Paromalus (Isolomalus) hariolus Marseul, 1862 |
| Paromalus (Isolomalus) infimus Marseul, 1855 |
| Paromalus (Isolomalus) inunctus Marseul, 1862 |
| Paromalus (Isolomalus) luderti Marseul, 1862 |
| Paromalus (Isolomalus) malus Marseul, 1862 |
| Paromalus (Isolomalus) mysticus (Casey, 1916) |
| Paromalus (Isolomalus) pupillus Lewis, 1888 |