Genus Thecla 



more even, and in general parallel with the submarginal line. Ex- 

 panse, 1. 15 inch. 



Early Stages.— These have not been described. 



Eryphon replaces the Eastern T. nipbon on the Pacific coast. 



{})) Thecla niphon, Hubner, Plate XXX, Fig. 11, ? ; Fig. 22, 

 $ , under side; Plate V, Figs. 38, 40, chrysalis (The Banded Elfin). 



Butterfly.— Reddish-brown on the upper side. 

 The under side is accurately depicted in the plate. 

 Expanse, 1. 10 inch. 



Early Stages. — These have been elaborately de- 

 scribed by Scudder in his great work. The cater- 

 pillars feed upon pine. 



The Banded Elfin is found from Nova Scotia 

 to Colorado, in the Northern States, where its 

 food-plant occurs, but is never abundant. 



(34) Thecla affinis, Edwards, Plate XXX, Neura'tion of 



Fig. 3, 2 , under side (The Green-winced Hair- Th f c!a , nipUn, 



f\ enlarged. Typical 



Streak). of subgenus In- 



Butterfly.— On the upper side closely resem- oisalia, Minot. 

 bling the following species. On the under side the wings are 

 uniformly bright green. Expanse, 1. 00 inch. 



Early Stages.— These await description. 



The types came from Utah. I also have specimens from 

 California. 



(35) Thecla dumetorum, Boisduval, Plate XXX, Fig. 1, $ ; 

 Fig. 2, $ , under side (The Green White-spotted Hair-streak). 



Butterfly.— Dark fawn-color above, sometimes tinged exter- 

 nally with reddish. On the under side both wings are green, 

 the primaries having a short straight band of white spots on the 

 outer third, and the secondaries a small white spot on the 

 costa beyond the middle, and two or three conspicuous white 

 spots near the anal angle. Expanse, 1. 10 inch. 



Early Stages.— The eggs are laid on the unopened flower- 

 heads of Hosackia argopbylla. This is all we know of the life- 

 history. 



The species ranges from Oregon and California eastward as 

 far as Colorado. 



(36) Thecla laeta, Edwards, Plate XXIX, Fig. 23, $ ; Fig. 

 24, 8 , under side (The Early Hair-streak). 



Butterfly. —The wings brown, glossed with bright blue above ; 



249 



