.(20) Thecla dumetorum Boisduval, Plate LXXXVII. Fig. l,cf , under side (The Green 

 White-spotted Hair-streak). 



Dark fawn above; on the outer third of the wings often shaded with reddish; on the 

 under side both wings are green, the fore wings with a short band of white spots on the outer 

 third; the hind wings with a white spot on the costa beyond the middle and two or three con- 

 spicuous white spots near the anal angle. Expanse 1.10 inch. 



The eggs are laid on the buds of Hosackia argophylla. The insect ranges from Oregon 

 and California eastward as far as Colorado. 



(21) Thecla behri Edwards, Plate LXXXVII, Fig. 2, cf, under side (Behr's Hair-streak). 

 On the upper side the wings are broadly reddish fulvous on the disk, with the costa and 



outer margins of both wings broadly dark brown or black. The under side is accurately 

 shown in our cut, and therefore needs no description. Expanse 1.10 inch. 



This species is also found in Oregon and California, and ranges as far east as Colorado. 



(22) Thecla titus (Fabricius), Plate LXXXVII, Fig. 3, d", under side (The Coral Hair- 

 streak). 



On the upper side uniformly gray-brown, although occasionally specimens of the female 

 sex have a few red spots on the hind wing at the anal angle. On the under side the hind 

 wings have a conspicuous submarginal band of coral-red spots, as shown in our cut. Expanse 

 1.30 inch. 



The caterpillar feeds on the leaves of the wild cherry and wild plum. The insect ranges 

 from the Atlantic to tne Rocky Mountains and from Maine to the latitude of northern Georgia. 



158 



