rugifrons (Smith), new comb.

Chelostoma rugifrons Smith 1854: 220 . Female. Type locality: Georgia [U.S.A.]. Type repository: BMNH 17a2475. Examined.

Megachile rufimanus Robertson 1891: 65 . Male and female. Type locality: Carlinville, Illinois [U.S. A]. Synonymy of Mitchell 1937d: 412.

Eriades rugifrons Dalla Torre 1896: 379 .

Chelostomoides rufimanus Robertson 1901: 231 .

Megachile rugifrons Robertson 1901: 231 .

Chelostomoides rugifrons Cockerell 1904: 301 .

Megachile (Chelostomoides) rugifrons Mitchell 1937d: 412 ­414.

Chalicodoma (Chelostomoides) rugifrons Hurd 1979: 2075 .