Ti^.A.nsrs.A.0 Tionsrs 



OF THE 



AMERICAN ENTOMOLOGICAL SOCIETY. 



VOLUME VI. 



Catalogue of the DILK\AL, I.EPIDOPTKRl of America 

 IVorth of* iUexico. 



BY WILLIAM II. KDWARDS. 



Since the publication of the Synopsis which completed the first 

 volume of the " liutterflies of North America," in 1872, a lar"e 

 number of new species have been described, belonging to the Nor-th 

 American fiuna, while the position of many given in the Synopsis has 

 been determined by bringing together the types from several collec- 

 tions, ^lany also were included on various information, now regarded 

 as erroneous. And much has been learned, in the last few years, of 

 the phenomena of dimorphism, whereby two or more forms which had 

 been regarded as distinct species have resolved into one. 



For these reasons, if no other, a new catalogue of species of the 

 Diurnals is required. And indeed, fur many and good reasons, new 

 and reformed catalogues of every class of the Jjcpidoptera of North 

 America are retjuired, and it is intended that this shall be the first of 

 a complete series. 



In the preparation of the present one T have received large assist- 

 ance from .^Ir. l^intner and .Mr. Henry Edwards, and, iu general, the 

 plan herein adopted, and the changes from the Synopsis, both as to 

 the genera and species, have met their approval. I have also availed 

 myself somewhat of Mr. Scudder's recent lievisions and Lists, so far 

 as regards the species, thougli differing widely from him as to the 

 genera and nomenclature. 



It will be found that something over twenty species formerly ac- 

 credited to the fauna have been dropped, and this has been done for 

 want of authentication, no modern collector, so far as I have beeu 

 able to leaiii, having taken any of these species within our territory. 

 Several of them, all sub-tropical, were included in the Synopsis from 

 verbal information received by me when I first began to collect butter- 



TRANS. .VMER. E.NT. SOC. VI. (1) FliBltl AltV, lt>77. 



