182 DIVERSITY OF THE SEXES 



whose black female was long considered a distinct 

 species ; and it was not until search was made for 

 some mate to match it that suspicion was aroused. 

 This case is the more remarkable from its being 

 normally a gayly banded butterfly, having long 

 black stripes on a bright yellow ground, whereas 

 in the melanic female the yellow is quite sup- 

 planted by the black ; curiously enough, the blue 

 flecks of the hind wing are the same in either 

 form, the melanism having produced no effect 



upon them ; very rarely 

 individuals are found in 

 which the yellow and black 

 are more or less commin- 

 gled, and most of the me- 



Fio. 154.-Atrytone Zabulon, lanic fomiS show 

 female, nat. size ; under surface 



faint traces of the stripes 



in the deeper black of the parts normally covered 

 by the black bands. Now the home of this 

 butterfly stretches from Alaska to Florida, but 

 north of the southern boundary of JS"ew York or 

 outs not a black female can be found ; the 

 parallel in this respect with that of our 

 little blue butterfly. 



We have again a dusky skipper (Atrytone 

 Zabulon) [Fig. 154], not very uncommon in JSTew 

 England, and still more common farther south, to 

 which I once gave the name of Pocahontas ; for 

 years Pocahontas sought her mate in vain, until 



