guaranitica Schrottky, new comb.

Megachile guaranitica Schrottky 1908: 236 ­237. Female. Type locality: Puerto Bertoni, Paraguay.

Megachile guaranitica uruguayensis Schrottky 1908: 237 . Female. Type locality: Uruguay. Synonymy of Schrottky 1913a: 168.

Megachile guaranitica forma melanopyga Schrottky 1908: 237 . Female. Type locality: Puerto Bertoni, Paraguay. Synonymy of Schrottky 1913a: 168. (Not M. (Megachile) melanopyga Costa 1863: 45 [Central Europe].)

Megachile gomphrenae var. ferrugineipes Friese 1908a: 65 . Male. Type locality: Jundiay [=Jundiaí], São Paulo, [Brazil]. Synonymy of Schrottky 1913a: 168.

Megachile marcida Vachal 1908: 229 ­230. Female and male. Female designated here as lectotype. Type locality: Mendoza/ Buenos Aires [Argentina]. (The locality is not cited on type specimen.) Type repository: MNHN. Examined. NEW SYNONYMY.

Megachile guaranitica ferrugineipes Schrottky 1909b: 268 .

Megachile (Chrysosarus) guaranitica Mitchell 1943: 664 .