A bibliography of the catalogs, lists, faunal and other papers on the butterflies of North America north of Mexico arranged by state and province (Lepidoptera Rhopalocera) - Field, William Dewitt, 1914-; Dos Passos, Cyril Franklin; Masters, John H (Washington Smithsonian Institution Press, 1974)
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Keywords: Butterflies -- United States -- Bibliography; Butterflies -- Canada -- Bibliography