| Judolia swainei subsp. swainei (Hopping, 1922) |
| Juiaparus Martins & Monné, 2002 |
| Juiaparus batus (Linnaeus, 1758) |
| Juiaparus batus subsp. batus (Linnaeus, 1758) |
| Juiaparus mexicanus (Thomson, 1861) |
| Jupoata Martins & Monné, 2002 |
| Jupoata rufipennis (Gory, 1831) |
| Knulliana Linsley, 1962 |
| Knulliana cincta (Drury,1773 ) |
| Knulliana cincta subsp. cincta (Drury, 1773) |
| Knulliana cincta subsp. sonorensis (Schäffer, 1908) |
| Knulliana cincta subsp. spinifera (Fabricius, 1793) |
| Kyranycha Martins & Galileo, 1997 |
| Kyranycha fraudatrix (Bates, 1881) |
| Lagocheirus Dejean, 1835 |
| Lagocheirus araneiformis Aurivillius, 1921 |
| Lagocheirus araneiformis subsp. ypsilon (Voet, 1778) |
| Lagocheirus binumeratus Thomson, 1860 |
| Lagocheirus cristulatus Bates, 1872 |
| Lagocheirus funestus Thomson, 1865 |