| Protandrena (Pterosarus) solidaginis (Robertson) |
| Protandrena (Pterosarus) stathamae (Timberlake, 1967) |
| Protandrenini Robertson, 1904 |
| Protoxaea Cockerell & Porter, 1899 |
| Protoxaea (Mesoxaea) Hurd & Linsley, 1976 |
| Protoxaea (Mesoxaea) arizonica (Cockerell, 1936) |
| Protoxaea (Mesoxaea) clypeata Hurd & Linsley, 1976 |
| Protoxaea (Mesoxaea) nigerrima (Friese, 1912) |
| Protoxaea (Mesoxaea) rufescens Hurd & Linsley, 1976 |
| Protoxaea (Mesoxaea) tachytiformis (Cameron, 1901) |
| Protoxaea (Mesoxaea) texana (Friese, 1898) |
| Protoxaea (Mesoxaea) vagans (Fox, 1894) |
| Protoxaea (Protoxaea) Cockerell & Porter, 1899 |
| Protoxaea (Protoxaea) australis Hurd & Linsley, 1976 |
| Protoxaea (Protoxaea) gloriosa Fox, 1893 |
| Protoxaea (Protoxaea) micheneri Hurd & Linsley, 1976 |
| Pseudopanurgus Cockerell, 1897 |
| Pseudopanurgus aethiops (Cresson, 1872) |
| Pseudopanurgus cameroni (Baker, 1906) |
| Pseudopanurgus cazieri Timberlake, 1973 |