Psychomastax psylla Rehn, J.A.G. & Hebard, 1918

Rehn, J. A. G. & Hebard. 1918. A study of the North American Eumasticinae (Orthoptera, Acridide). Transactions of the American Entomological Society (Trans. Amer. Entomol. Soc. ) 44:223-250, 6 pls.