gravita Mitchell, new comb.

Megachile (Xeromegachile) gravita Mitchell 1934: 322 ­323. Male. Type locality: San Bernardino County, California [U.S.A.].

Megachile (Megachiloides) astata Mitchell 1934: 345 ­346. Female. Type locality: San Bernardino County, California [U.S.A.]. Synonymy of Hurd 1979: 2062.

Megachile (Derotropis) gravita Hurd 1979: 2062 .