This species is distributed in the eastern Pacific including: the Gulf of California in Mexico, the Galápagos Archipelago, and Ecuador. There is a report of larva probably belonging to this species, at 200 miles north of Clipperton Island, to the south-west of Mexico (Holthuis 1991). This species is likely to occur along the scattered islands running from Baja California, to the Galápagos e.g. Clipperton Is, Cocos Is., Roca Partida (M. Butler pers. comm. 2009).

The type locality for this species is 'Post Office Bay, Charles Island, Galapagos Archipelago' (Holthuis 1991).