| Lithocosmus Cockerell, 1909 |
| Litomyza Hull, 1973 |
| Litorhynchus Macquart, 1840 |
| Lomatiinae Schiner, 1867 |
| Lomatiini Schiner, 1867 |
| Lordotus Loew, 1863 |
| Lordotus apicula Coquillett, 1887 |
| Lordotus apiculus Painter, R. H. & Painter, E. M., 1965 |
| Lordotus arnaudi Johnson, D. E. & Johnson, L. M., 1959 |
| Lordotus carus Cresson, 1924 |
| Lordotus diplasus Hall, 1954 |
| Lordotus diversus Coquillett, 1891 |
| Lordotus divisus Cresson, 1919 |
| Lordotus flava (Jaennicke, 1867) |
| Lordotus gibbus Loew, 1863 |
| Lordotus junceus Coquillett, 1891 |
| Lordotus lineatus Johnson, D. E. & Johnson, L. M., 1959 |
| Lordotus niger Cresson, 1924 |
| Lordotus nigriventris Johnson, D. E. & Johnson, L. M., 1959 |
| Lordotus perplexus Johnson, D. E. & Johnson, L. M., 1959 |