| Megachile (Xanthosarus) comata Cresson, 1872 |
| Megachile (Xanthosarus) gemula Cresson, 1878 |
| Megachile (Xanthosarus) perihirta Cockerell, 1898 |
| Megachile (Xanthosarus) subfortis Mitchell, 1936 |
| Megachile (Xanthosarus) valida Smith, 1879 |
| Megachile aurorea Friese, 1916 |
| Megachile brachysoma Cockerell, 1924 |
| Megachile estebana Cockerell, 1924 |
| Megachile knabi Cockerell, 1919 |
| Megachile peruviana Smith, 1879 |
| Megachile rhodopus Cockerell, 1896 |
| Megachile subexilis Cockerell, 1903 |
| Megachilidae Latreille, 1802 |
| Megachilinae Latreille, 1802 |
| Megachilini Latreille, 1802 |
| Osmia Panzer, 1806 |
| Osmia (Acanthosmioides) Ashmead, 1899 |
| Osmia (Acanthosmioides) nigrobarbata Cockerell, 1916 |
| Osmia (Cephalosmia) Sladen, 1916 |
| Osmia (Cephalosmia) marginipennis Cresson, 1878 |