| Cantharis ochrea (LeConte, 1853) |
| Cantharis ochreipennis Dugès, 1877 |
| Cantharis ocreaceipennis Dugès, 1870 |
| Cantharis octomaculata Peñafiel & Barranco, 1866 |
| Cantharis palpalis Champion, 1893 |
| Cantharis peninsularis Fall, 1901 |
| Cantharis pensylvanica De Geer, 1775 |
| Cantharis perpallens Fall, 1936 |
| Cantharis pilsbryi Skinner, 1906 |
| Cantharis plagiata (Haag-Rutenberg, 1880) |
| Cantharis plumbea (Haag-Rutenberg, 1880) |
| Cantharis potosina (Dugès, 1889) |
| Cantharis protarsalis Dugès, 1877 |
| Cantharis proteus (Haag-Rutenberg, 1880) |
| Cantharis punctata (Casey, 1891) |
| Cantharis punctuata Dugès, 1870 |
| Cantharis punctum Dugès, 1869 |
| Cantharis purpurea (Horn, 1885) |
| Cantharis quadrimaculata Chevrolat, 1834 |
| Cantharis rileyi (Horn, 1874) |