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By: Bell, Ernest L. (Ernest Layton), - Dos Passos, Cyril F. (Cyril Franklin),Edition:Publication info: New York, N.Y, American Museum of Natural History, [1954]Volume: no. 1700Series:Holding Institution: American Museum of Natural History LibrarySubjects: 59.57,89M(7) Arizona Butterflies Central America Classification Insects Megathymidae Megathymus aryxna Nomenclature North America Prescott Region Type specimensBHL Collections: