| Katamyurus paxillus Opitz, 1997 |
| Kataspinula Opitz, 2009 |
| Kataspinula omocerina Opitz, 2009 |
| Kataspinula puebla Opitz, 2019 |
| Korynetinae Laporte, 1836 |
| Lasiodera Gray, 1832 |
| Lasiodera stenochiodes (Chevrolat, 1874) |
| Lebasiella Spinola, 1844 |
| Lebasiella discolor (Klug, 1842) |
| Lebasiella marginella (Chevrolat, 1843) |
| Lebasiella mesosternalis Schaeffer, 1908 |
| Lebasiella mexicana Papp, 1959 |
| Lebasiella minuta Corporaal, 1941 |
| Lebasiella pallipes (Klug, 1842) |
| Lecontella Wolcott & Chapin, 1918 |
| Lecontella brunnea (Spinola, 1844) |
| Lecontella ensifera Rifkind, 2020 |
| Lecontella gnara Wolcott, 1927 |
| Lecontella striatopunctata (Chevrolat, 1876) |
| Loedelia Lucas, 1920 |