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By: Fluke, Charles Lewis, - Weems, H. V. (Howard Vincent),Edition:Publication info: New York, N.Y, American Museum of Natural History, [1956]Volume: no. 1758Series:Holding Institution: American Museum of Natural History LibrarySubjects: 59.57,72S(7/8) America Classification Insects Myoleptini SyrphidaeBHL Collections: