alata Mitchell, new comb.

Megachile (Xeromegachile) alata Mitchell 1934: 324 ­326. Male. Type locality: Palm Canyon, California [U.S.A.].

Megachile (Xeromegachile) redlandica Mitchell 1934: 331 ­332. Female. Type locality: Redlands, California [U.S.A.]. Synonymy of Hurd 1979: 2063.