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. 
(33) 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, 
Fig. 3, $, under side (The Green-winged Hair- 
streak). 
Butterfly.—On the upper side closely resem¬ 
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 aiso have specimens from 
California. 
(35) Thecla dumetorum, Boisduval, Plate XXX, Fig. 1, 6 ; 
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 argophylla. 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, 6 ; Fig. 
24, $ , under side (The Early Hair-streak). 
Butterfly.— The wings‘brown, glossed with bright blue above; 
249 
Fig. 132.— 
Neuration of 
Thecla niphon , 
enlarged. Typical 
of subgenus In - 
cisalia, Minot. 
