Genus Brenthis 
(3) Brenthis helena, Edwards, Plate XVIII, Fig. 16, <$, 
underside: Fig. 17, $ (Helena). 
Butterfly , 6 .“The wings on the upper side are fulvous, 
greatly obscured by brown at the base of the fore wings and 
along the inner margin of the hind wings. The usual black 
markings are light, and the marginal border is also not so heavily 
marked as in B. myrina. The fore wings on the under side are 
pale fulvous, laved with ferruginous at the tip. The hind wings 
are brightly ferruginous, with small yellow marginal spots, and 
paler spots inclining to buff on the costal border and at the end 
of the cell, about the region of the median nervules. 
$.—The female is very much like the male on the upper 
side, but the ground-color is paler. On the under side the 
wings are somewhat paler, and all the spots and light markings, 
especially on the secondaries, are far more conspicuous, being 
bright yellow, and standing out very prominently upon the dark 
ferruginous ground. Expanse, 1.40 inch. 
Early Stages .—The early stages of this insect are not as yet 
known. 
Helena appears to be a common species in Colorado, Mon¬ 
tana, and New Mexico. It'is subject to considerable variation, 
both in the intensity of the coloring of the under side of the 
wings, and in the distinctness of the maculation. 
(4) Brenthis montinus, Scudder, Plate XV, Fig. 7, 6 ; Fig. 
8, $, under side (The White Mountain Fritiilary). 
Butterfly , S .—The upper side is fulvous, closely resembling B. 
chariclea , but the ground-color is darker. The under side of the 
hind wings is deep ferruginous, mottled with white, the most 
conspicuous of the white spots being a white bar occurring at the 
end of the cell, and a small round white spot at the base of the 
wing. The hind wings have also a marginal row of slightly sil¬ 
vered white spots. 
$ .—The female is very much like the male, but the ground- 
color of the upper side is paler. Expanse, 6 ,1.50 inch; $,1.75 inch. 
This interesting butterfly is found on the barren summits of 
Mount Washington, New Hampshire. It represents the survival 
of the arctic fauna on these desolate peaks, and, like the arctic 
flora of the spot where it is found, is a souvenir of the ice-age, 
which once shrouded the northeastern regions of the United 
States with glaciers. 
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