Subgenus Sayapis Titus

Gnathocera Provancher 1882: 232 . Type species: Gnathocera cephalica Provancher 1882 (= Megachile pugnata Say 1837). (Not Gnathocera Kirby 1825 [ Coleoptera].)

Ceratias Robertson 1903: 172 . Type species: Megachile pugnata Say 1837 . (Not

Ceratias Kroy 1845 [fish].)

Sayapis Titus 1905: 154. New name for Gnathocera and Ceratias .

Megachile (Sayapis) Mitchell 1934: 298, 308. Michener et al 1994: 149, Michener 2000: 565.

Eumegachile (Sayapis) Mitchell 1980: 46 & 51. Durante & Diaz 1996: 327.