Genus Brenthis 
at once distinguished by the entire absence of the silvered mark¬ 
ings which make B. myrina so bright and attractive. 
(n) Brenthis epithore, Boisduval, Plate XV, Fig. 17,6; 
Fig. 18, $, under side (Epithore). 
Butterfly. —This species on the upper side is pale fulvous, with 
the markings slighter than in B. bellona, and the inner half of the 
hind wings much more heavily clouded with fuscous. On the 
under side the wings are somewhat like those of B. bellona , but 
less purple and mottled more distinctly with yellow. Expanse, 
$, 1.50 inch; $, 1.85 inch. 
Early Stages .—Undescribed. 
This species appears to replace B. bellona , its close ally, in 
California, Oregon, and the States eastward as far as parts of 
Colorado. 
(12) Brenthis alberta, Edwards, Plate XV, Fig. 15, & (Al¬ 
berta). 
Butterfly. —This, the least attractive in appearance of the 
species composing the genus, has pale wings with a “washed- 
out” appearance on the upper side, almost all the dark markings 
being greatly reduced or obliterated. On the under side the wings 
are even more obscurely marked than on the upper side. The fe¬ 
male is darker than the male, and specimens have a greasy look. 
Expanse, 3,1.55 inch; $,1.65-1.75 inch. 
Early Stages .—Unknown, except the egg and the young 
caterpillar, which have been most beautifully figured by Edwards 
in vol. iii of “The Butterflies of North America.” The only 
locality from which specimens have as yet been received by col¬ 
lectors is Laggan, in Alberta, where the species apparently is not 
uncommon at lofty elevations above sea-level. 
(13) Brenthis astarte, Doubleday and Hewitson, Plate XVIII, 
Fig. 14, $ ; Fig. 15, $ , under side (Astarte). 
Butterfly .—This rare insect, the largest of the genus, may at 
once be distinguished from all others by the very beautiful mark¬ 
ings of the under side of the hind wings, crossed by a band of 
irregular, bright-yellow spots, which are narrowly edged with 
black, and beyond the black bordered by red. Expanse, $ , 2.00 
inches; $ , 2.15 inches. 
Early Stages. —Unknown. 
The first description and figure of this insect were given by 
Doubleday and Hewitson in their large and now very valuable 
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