| Leptothorax bristoli Mackay, 2000 |
| Leptothorax carinatus Cole, 1957 |
| Leptothorax echinatinodis Forel, 1886 |
| Leptothorax echinatinodis raza dalmasi Forel, 1899 |
| Leptothorax emmae Mackay, 2000 |
| Leptothorax goniops Baroni Urbani, 1978 |
| Leptothorax hispidus Cole, 1957 |
| Leptothorax leucacanthus Baroni Urbani, 1978 |
| Leptothorax manni Wheeler, 1914 |
| Leptothorax mexicanus Mackay, 2000 |
| Leptothorax neomexicanus Wheeler, 1903 |
| Leptothorax nevadensis Wheeler, 1903 |
| Leptothorax nitens Emery, 1895 |
| Leptothorax nitens var. mariposa Wheeler, 1917 |
| Leptothorax nudus Mayr, 1866 |
| Leptothorax obliquicanthus Cole, 1953 |
| Leptothorax ocarinae Baroni Urbani, 1978 |
| Leptothorax peninsularis Wheeler, 1934 |
| Leptothorax pergandei Emery, 1895 |
| Leptothorax petiolatus Forel, 1901 |