HOW TO KNOW THE BUTTERFLIES 



frisky little creature living up to its orange 

 spots in action rather than to its decorous 

 body color ; it dances about shrubbery, and is 

 much given to taking long swigs of nectar from 

 the flowers of the bush-clover. It is a long-lived 

 butterfly and flies from June to September here 

 in the North, where it is double-brooded, and 

 probably winters as a chrysalid. It occurs 

 throughout the United States. The caterpillar 

 lives in the pods or seeds of its food-plant, and 

 is therefore quite destructive ; it is quite as ex- 

 tensible as if it were made of india-rubber. 



The Acadian Hair-streak 



Thecla acadica (Thec'la a-cad'i-ca) 



Plate XXXIII, Fig. io, ii 



The upper surface of the wings is of a uniform blackish 

 slate brown; costal edge of fore wings, especially near the 

 base, tawny. In cell Cu, of the hind wings, a submarginal, 

 orange, lunate spot, which is indistinctly continued to the 

 inner border of the wing. The under surface is pearl gray; 

 on each wing there is a dark bar edged with white at the end 

 of cell R + M; beyond this a bent row of roundish black 

 spots encircled with white; and beyond this a submarginal 

 row of black lunules edged within with white, and followed 

 without by orange spots. The orange spots of the front 

 wings are inconspicuous; but on the hind wings they increase 

 in size toward the anal angle, except that the one in cell Cu 



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