202 MOTHS AND BUTTERFLIES. 



side is prettily marked with wav}' wliite lines, the outer line of both 

 wings being edged externally with black crescents. A black spot is 

 situated on the lower wings between the base of the tails, and another 



Thecla strigosa. 



one at the inner angle. Between these two is the usual blue gray 

 spot. A row of orange red crescents, gradually becoming smaller 

 toward the upper part, extends above these spots from the inner 



Thecla strigosa. Under side. 



angle toward the upper angle of the wing. The thorax is gray, and 

 the legs grayish white, the abdomen being yellowish white. Packard 

 says that the larva is downy and of a rich velvety green, obliquely 

 strijjed on the sides with faint ^^ellow lines, and that it feeds on the 

 thorn. 



I have captured a few specimens of this butterfly in Massa- 

 chusetts late in July, and have had others sent me from Canada. 

 Tliis insect inliabits the eastern half of the countiy. Those that I 

 found were among low shrubs and bushes and often in compau}- 

 with Tlit'da cahtnus^ though they were much more shy, and when 

 alarmed flew rapidly away and were seldom seen again. The white 

 lines on the under side render the insect quite easily identified 

 from tlie other butterflies with which it is likely to be found, 

 and one may move cautiously about where they are feeding or 



