| Protandrena (Protandrena) sphaeralceae Timberlake, 1976 |
| Protandrena (Protandrena) tessellata Timberlake, 1976 |
| Protandrena (Protandrena) tidestromiae Timberlake, 1976 |
| Protandrena (Protandrena) trifoliata (Cockerell, 1896) |
| Protandrena (Protandrena) trilobata Timberlake, 1976 |
| Protandrena (Protandrena) unimaculata Timberlake, 1976 |
| Protandrena (Protandrena) verbesinae (Timberlake, 1955) |
| Protandrena (Protandrena) xestops Timberlake, 1976 |
| Protandrena (Pterosarus) Timberlake, 1967 |
| Protandrena (Pterosarus) barberi (Cockerell, 1899) |
| Protandrena (Pterosarus) bidentis (Cockerell, 1896) |
| Protandrena (Pterosarus) bidentis subsp. bidentis (Cockerell, 1896) |
| Protandrena (Pterosarus) boylei (Cockerell, 1896) |
| Protandrena (Pterosarus) californicus (Cockerell, 1878) |
| Protandrena (Pterosarus) concinnus (Fox, 1894) |
| Protandrena (Pterosarus) helianthi (Mitchell, 1960) |
| Protandrena (Pterosarus) illustris (Timberlake, 1967) |
| Protandrena (Pterosarus) mexicanus (Friese, 1916) |
| Protandrena (Pterosarus) occiduus (Timberlake, 1967) |
| Protandrena (Pterosarus) planatus (Cockerell, 1918) |