| Lampropterus ruficollis (LeConte, 1873) |
| Laraesima Thomson, 1868 |
| Laraesima asperata (Bates, 1885) |
| Laraesima fuliginea (Bates, 1885) |
| Lasiogaster Gahan, 1892 |
| Lasiogaster costipennis Gahan, 1892 |
| Laticraniini Lane, 1959 |
| Laticranium Lane, 1959 |
| Laticranium mandibulare Lane, 1959 |
| Leptocometes Bates, 1881 |
| Leptocometes acutispinis (Bates, 1863) |
| Leptocometes hispidus Bates, 1881 |
| Leptostylus LeConte, 1852 |
| Leptostylus albicinctus Bates, 1885 |
| Leptostylus arciferus Gahan, 1892 |
| Leptostylus aspiciens Bates, 1885 |
| Leptostylus cretatellus Bates, 1863 |
| Leptostylus diffusus Bates, 1885 |
| Leptostylus dubitans Bates, 1885 |
| Leptostylus faulkneri Hovore, 1988 |