| Formica microgyna Wheeler, 1903 |
| Formica microgyna var. recidiva Wheeler, 1913 |
| Formica migratoria De Geer, 1773 |
| Formica moki Wheeler, 1906 |
| Formica moki subsp. grundmanni Cole, 1943 |
| Formica moki subsp. xerophila Smith, 1939 |
| Formica montana Wheeler, 1910 |
| Formica nana Jerdon, 1851 |
| Formica neoclara Emery, 1893 |
| Formica neogagates Viereck, 1903 |
| Formica neorufibarbis Emery, 1893 |
| Formica nigerrima Christ, 1791 |
| Formica nigra Linnaeus, 1758 |
| Formica nodosa Latreille, 1802 |
| Formica occidua Wheeler, 1913 |
| Formica occulta Francoeur, 1973 |
| Formica octospinosa Reich, 1793 |
| Formica pachucana Francoeur, 1973 |
| Formica pacifica Francoeur, 1973 |
| Formica pallidefulva Latreille, 1802 |