The Ross's Alpine or Arctic Alpine (Erebia rossii) is a member of the Satyrinae subfamily of Nymphalidae. It is found in arctic North America and northern Eurasia.

Description

The wingspan is 31-44 mm. The dorsal wings are blackish brown. The forewing in the male has two black eyespots with white pupils sometimes surrounded by one or two orange rings. The male's hindwing has no spots or a partial row of very small spots. The female has two large eye-spots and may have smaller spots on both wings. The ventral hindwings have greyish median bands with jagged borders.

Subspecies

Listed alphabetically.

E. r. erda Sheljuzhko, 1924 (Sajan mountains)
E. r. ero Bremer, 1861 (eastern Siberia, Dzhugdzhur Mountains)
E. r. gabrieli dos Passos, 1949 (Alaska)
E. r. kuskoquima Holland, 1931 (Kuskoquim Valley)
E. r. ornata Leussler, 1935 (Manitoba)
E. r. subarctica Korshunov, 1996 (mountains of Yakutia and Chukotka)
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Life cycle

The foodplants of the larvae are various grasses, including Carex species.


source - Wikipedia