98 



IX. Synonymic List of the Butterflies of North 

 Annerica, North of IVIexico 



BY SAMUEL H. SCUDDER. 

 [Read before tliis Society, March 3, 1876.] 



Part II. RUflALES. 



In continuing the list of North American Bntfcerflies from the 

 preceding volume of this Bulletin (pp. 233-2G9), the writer wishes 

 to call attention to the fact that the analytical tables for the readier 

 determination of the genera, are prepared solely for the purpose of 

 assisting the student, and are by no means supposed to include 

 structural characters alone ; on the contrary, trivial features, such 

 even as mere coloration, markings or size, have been employed 

 wherever it seemed simpler to iise them. The list is prepared on 

 the same plan as its predecessor. 



The same generous assistance that enabled me to make the for- 

 mer part of this list so complete, has been extended to me in the 

 preparation of its continuation. In particular, Messrs. W.. H. Ed- 

 wards, Henry Edwards and T. L. Mead, have not hesitated to send 

 me everything from theirample cabinets which could possibly aid 

 me; others, though with more limited resources, have assisted me 

 with equal generosity. Mr. W. H. Edwards has given me the 

 results of his recent examination of some of Dr. Boisduval's types ; 

 and as I myself formerly made direct comparison of specimens with 

 those in Dr. Boisduval's collection, through his ever-ready courtesy, 

 there are but few species of the many that have been described the 

 last twenty-five years, the original types of which I have not seen ; 

 most of the few that I have not seen have been lost. 



Our knowledge of this part of our fauna has vastly increased 

 within the last fifteen years, or since American naturalists first 

 commenced a systematic study of the butterflies of their own coun- 

 try. Of the one hundred and twelve species here catalogued, sixty- 



