Genus Brenthis 
Chrysalis .—The chrysalis is yellowish-brown, spotted with 
darker brown spots, those of the thoracic and first and second 
abdominal segments having the lustre of mother-of-pearl. 
This very pretty little species has a wide range, extending 
from New England to Montana, from Nova Scotia to Alaska, and 
southward along the ridges of the Alleghanies into Virginia and 
the mountains of North Carolina. 
(2) Brenthis triclaris, Hubner, Plate XV, Fig. 3, S (Hub- 
ner’s Fritillary). 
Butterfly , 6 .—The male above is bright fulvous, with the 
base of the fore wings and the inner margin of the hind wings 
heavily obscured with blackish scales. The usual dark markings 
are finer than in the preceding species; the black marginal borders 
are not so heavy. The submarginal spots are relatively large and 
distinct in most specimens, and uniform in size. The light spots 
of the under side of the median band of the hind wings show 
through from below on the upper side lighter than the ground- 
color of the wings. On the under side the fore wings are fulvous, 
tipped with ferruginous. The hind wings are broadly ferrugin¬ 
ous, with a couple of bright-yellow spots near the base and a 
curved band of yellow spots crossing the median area. The 
outer margin about the middle is marked with pale fulvous. 
The spots on the under side are none of them silvered. 
$.—The female is much paler than the male in most cases, 
and the marginal spots within the lunules are very pale, almost 
white. The submarginal row of round black spots is relatively 
large and distinct, quite uniform in size. On the under side the 
wings are much more conspicuously marked on the secondaries 
than in the male sex, being crossed by three conspicuous bands 
of irregularly shaped yellow spots, one at the base and one on 
either side of the discal area. The submarginal round spots of 
the upper side reappear on the under side as small, slightly 
silvered, yellow spots. The marginal spots are bright yellow, 
slightly glossed with silver. Expanse, <3,1.50 inch; $, 1.60inch. 
Early Stages. —Unknown. 
This extremely beautiful little species is found throughout 
arctic America, is not uncommon in Labrador, and also occurs 
tipon the loftier summits of the Rocky Mountains in Colorado 
and elsewhere. It is, as most species of the genus, essentially 
arctic in its habits. 
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