IN THE GENUS BASILARCHIA 37 



Euploeinae, which possess a taste and perhaps an 

 odor offensive to birds and other insectivorous 

 animals ; the mimicry is very striking- indeed, and 

 is the more remarkable from the fact that the 

 northern species resembles the only species of 

 Euploeinae found in the region it inhabits, while 

 the southern species as well as the southernmost 

 examples of the northern species resemble another 

 which is more common in the region they inhabit. 

 It is indeed possible that one of the normally 

 colored species of Basilarchia, one that has least 

 conspicuously contrasted colors, though resplendent 

 with blue and green, is specially protected by the 

 various other devices we have recounted ; for 

 certainly it is itself mimicked by one sex of a 

 butterfly of another very distinct group, viz., 

 Semnopsyche diana. 



