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THE AMERICAN NATURALIST 



Was commenced twenty-two years ago, by an association of the sudents of Professor 

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Prof. J. A. Ryder, of the University of Pennsylvania, edits the department of Embry- 

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It has been the aim of the Naturalist to preserve its well-known national character, 

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Synopsis of the Families and Genera of North American Diptera (exclusive of 

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JAMES T. HATHAWAY, New Haven, Conn 

 BUTTERFLIES OE r»^OIi,TH: AM:EI4ICA. 



Part 6, Vol. iii, issued ist Jan., 1889. Contents: Papilio Nitra ; Anthocharis 

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