_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, ♂ (Alberta). _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 female is darker than the male, and specimens have a greasy look. Expanse, ♂, 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 collectors 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 markings 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 work on "The Genera of Diurnal Lepidoptera." They correctly attributed it to the Rocky Mountains, but Kirby afterward gave Jamaica as its habitat, and this led to its subsequent redescription by Edwards under the name _Victoria_. It is a rare species still, having been received only from Laggan, Alberta, where it was rediscovered by that most indefatigable collector and observer, Mr. T.E. Bean. It frequents the highest summits of the lofty mountains about this desolate locality. Mr. Bean says: "_Astarte_ seems always on the lookout for an entomologist, whose advent is carefully noted, and at any approach of such a monster nearer than about fifteen feet, its wings rise to half-mast, vibrate there a doubtful instant, and away goes the butterfly."