The brown semicostate and costate species of Colaspis in Mexico and Central America (Coleoptera: Chrysomelidae) /

by Blake, Doris Holmes, 1892-1978
Washington : Agricultural Research Service, U.S. Dept. of Agriculture, 1976

Systematics of Stator of North and Central America (Colepeotera: Bruchidae) /

by Johnson, Clarence D., 1931-
Washington : U.S. Dept. of Agriculture, Agricultural Research Service, 1976