270 AMERICAN MICRO-LEPIDOPTERA. 



times inaccessible, has also been a reason for giving new, complete 

 descriptions. 



Three European species, formerly included in our fauna, are 

 omitted in the present revision, viz. : alniella Zell., blancardella 

 Fab. and fag inella Zell. There is no authentic record of an Ameri- 

 can specimen of alniella; blancardella was included in our lists on 

 the ground of the supposed synonomy of Clemens' crakegella with 

 this species ; the occurrence of faginella was based upon the deter- 

 mination by Lord Walsingham of a specimen in Dr. Riley's collec- 

 tion. An examination of this specimen in the National Museum 

 discloses the fact that although a closely related species, it is very 

 distinct from the true faginella of Europe. 



In many cases, where species feed upon plants having a wide dis- 

 tribution, and are known to occur in widely separated localities, it 

 is probable that the range of the species coincides with that of its 

 food plant, and no specific localities have been given for such spe- 

 cies. This is especially true where the distribution of the food plant 

 covers the territory included in the Alleghanian, Carolinian and 

 Austroriparian areas, the "Atlantic States " of Dyar's List. 



My thanks are due to Mr. W. D. Kearfott for the loan of a large 

 number of specimens with notes on their life history, for literature 

 upon the genus, and for the encouragement and assistance which 

 have made my work possible. 



To Dr. Edward Meyrick of Marlborough, England, to whose 

 consideration the proposed division of the genus was submitted, I 

 am indebted for the expression of his opinion on the establishment 

 of the subgenera, and also for the comparison of several American 

 species with closely related European ones. 



Through the kindness of Dr. Heni*y Skinner of the Academy of 

 Natural Sciences of Philadelphia, and Prof. Samuel Henshaw of the 

 Museum of Comparative Zoology at Cambridge, Mass., I was given 

 every opportunity to examine and sketch the many valuable types 

 of species of this genus. 



Dr. James Fletcher has sent me a number of Canadian species 

 for examination, for which privilege I return thanks. 



I am under obligations to the U. S. National Museum for the loan 

 of material, and to Dr. Harrison G. Dyar and Mr. August Busck 

 for their courtesy wiiile examining the collection at Washington. 



Mr. G. R. Pilate has kindly sent me mines of a number of spe- 

 cies from California. 



I gratefully acknowledge the assistance I have received from the 

 University of Cincinnati, and my thanks are due to Dr. M. F. 

 Guyer for his interest and suggestions during the progress of my 

 work. Annette F. Bkaun. 



