bidens Friese, new combination by association.

Megachile bidens Friese 1911: 256 [new name].

Megachile bidentata Smith 1853: 190 . Male. Type locality: Mexico. Type repository: BNHM 17a2416. Examined. (Not M. (Pseudocentron) bidentata Fabricius 1775 [North or Central America].) Dalla Torre (1896: 422) listed the species of both Fabricius and Smith but gave no new name.

Megachile (Cressoniella) bidentata Smith (in Ayala et al 1997: 455).