| Leptothorax whitfordi Mackay, 2000 |
| Leptothorax wilda Smith, 1943 |
| Linepithema Mayr, 1866 |
| Linepithema dispertitum (Forel, 1885) |
| Linepithema humile (Mayr, 1868) |
| Linepithema humile subsp. humile (Mayr, 1868) |
| Linepithema iniquum (Mayr, 1870) |
| Linepithema melleus (Wheeler, 1908) |
| Linepithema piliferum (Mayr, 1870) |
| Linepithema riograndensis (Borgmeier, 1928) |
| Liometopum Mayr, 1861 |
| Liometopum apiculatum Mayr, 1870 |
| Liometopum apiculatum subsp. luctuosum Wheeler, 1905 |
| Liometopum luctuosum Wheeler, 1905 |
| Liometopum masonium (Buckley, 1866) |
| Liometopum microcephalum (Panzer, 1798) |
| Liometopum microcephalum var. occidentale Emery, 1895 |
| Liometopum occidentale Emery, 1895 |
| Liometopum xanthochroum Roger, 1863 |
| Lioponera Mayr, 1879 |