HOW TO KNOW THE BUTTERFLIES 



lack the yellow background to give them promi- 

 nence ; the eye-spots on the lower side of the 

 hind wings are inconspicuous, and often only two 

 of the normal six appear. It is simply a North- 

 ern variety of the blue-eyed grayling, a variety 

 grown dull under the clouds of Northern skies. 



The hybrid graylings are the progeny of the 

 yellow-banded beauty of the South and the sad- 

 colored Puritan of the North. The result is a 

 most interesting mixture and variation. In a box 

 of well-arranged specimens it is impossible to tell 

 where the Northern variety begins or the South- 

 ern variety ends. Perhaps in the course of eons 

 the blue-eyed and dull-eyed graylings may become 

 estranged and no longer interbreed ; then the en- 

 tomologist of the future will say " these species 

 are quite distinct," and if he is like some ento- 

 mologists of to-day he will add, " and they always 

 were distinct." 



The Southern Wood-nymph 

 Ccrcyonis pegala (Cer-cy'o-nis peg'a-la) 



This species closely resembles the typical form of Ccrcyonis 

 alope, the blue-eyed grayling, but is larger, and the yellow 

 band of the fore wings is orange-yellow. 



The larva is said to be gray, with one broad and one nar- 

 row white band. The food-plant is coarse wild grass. 



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