EASTERN UNITED STATES. 259 



angle. The outer Hue has a series of fulvous crescents 

 outside the black, and beyond this a black spot at the 

 anal angle, one between the bases of the tails, and between 

 these there is a pale blue patch. 

 Texas, Missouri. 



99. Thecla Humuli, Harr. 



Expanse of wings from 1.05 to 1.2 inches. 



Upper surface blackish, with a slight blue-gray tint, 

 the males with a blackish patch at the end of the cell of 

 the fore wings. Along the outer margin of the hind 

 wings is a series of more or less distinct pale blue spots, 

 interrupted by a large orange crescent enclosing a black 

 spot, the blue spot towards the anal angle with a similar 

 black spot ; an orange spot at the anal angle. Margin 

 of hind wing black, with a white line within ; two slender 

 tails, tipped with white. 



Under side gray, two blackish-brown lines crossing 

 both wings, the inner edged externally, and very slightly 

 internally, with white, and the outer on the hind wings 

 faintly edged on the inside with white ; these two lines 

 converging a little posteriorly, the inner, on the hind 

 wings, forming a very shallow W. The orange and 

 black spots of the upper surface are repeated, but the 

 orange is enlarged to a patch ; the anal angle is black, 

 with an orange spot before it. Both wings have black 

 outer margins, supplemented with white on the hind 

 wings. 



The larvae are " green, downy caterpillars," feeding on 

 the common hop-vine. The butterfly is to be seen in 

 May. 



Atlantic States, Mississippi Valley, Montana. 



