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Helena
Butterfly, male.--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.
Female.--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, Montana, 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.