INTRODUCTION. Ill 



Henshaw, for his kindness in aiding nie in the prosecution of my work; 

 Prof Edw. T. Owen and several other friends, to whom I have given due 

 credit in the work, have kindly loaned specimens. 



On another page will be found a cut of a butterfly, with an accom- 

 panying explanation of the terms I have applied to the various parts. 



C. J. Maynard. 



iS'EWTONVILLE, MaSS., MaY. 181)1. 



