| Empidonax difficilis subsp. difficilis Baird, 1858 |
| Empidonax difficilis subsp. hellmayri Brodkorb, 1935 |
| Empidonax difficilis subsp. occidentalis Nelson, 1897 |
| Empidonax flavescens Lawrence, 1865 |
| Empidonax flavescens subsp. imperturbatus Wetmore, 1942 |
| Empidonax flavescens subsp. salvini Ridgway, 1886 |
| Empidonax flaviventris (Baird & Baird, 1843) |
| Empidonax fulvifrons (Giraud, 1841) |
| Empidonax fulvifrons subsp. brodkorbi Phillips, 1966 |
| Empidonax fulvifrons subsp. fulvifrons (Giraud Jr, 1841) |
| Empidonax fulvifrons subsp. fusciceps Nelson, 1904 |
| Empidonax fulvifrons subsp. pygmaeus Coues, 1865 |
| Empidonax fulvifrons subsp. rubicundus Cabanis & Heine, 1860 |
| Empidonax hammondii (Xántus De Vesey, 1858) |
| Empidonax minimus (Baird & Baird, 1843) |
| Empidonax oberholseri Phillips, 1939 |
| Empidonax occidentalis Nelson, 1897 |
| Empidonax traillii (Audubon, 1828) |
| Empidonax traillii subsp. brewsteri Oberholser, 1918 |
| Empidonax traillii subsp. extimus A. R. Phillips, 1948 |