Erebia fasciata

Erebia fasciata, the banded alpine, is a member of the subfamily Satyrinae of family Nymphalidae. It is found from central Siberia, through Alaska, Yukon, and mainland Northwest Territories and Nunavut to Hudson Bay. It also occurs on Banks Island and Victoria Island.

Banded alpine
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Nymphalidae
Genus:
Erebia
Species:
E. fasciata
Binomial name
Erebia fasciata
Butler, 1868[1]
Subspecies

Three, see text

Synonyms
  • Erebia suffusa Warren, 1936
  • Erebia fasciata var. semo Grum-Grshimailo, 1899

The wingspan is 38–53 mm.

Description in Seitz

E. fasciata Btl: Size and shape as in glacialis, ground-colour sombre black-brown with a russet- brown incomplete distal band which is traversed by the veins and has no ocelli. On the hindwing there is a grey-brownish submarginal band extending from the costal to the hindmargin and being of nearly even width The russet-brown band is lighter and more prominent on the underside of the forewing, the costal margin and part of the outer margin being thinly dusted with grey. The hindwing beneath more or less dusted with grey at the base, the externally somewhat dentate central area being dark brown, the submarginal band pale ashy grey and the distal area of the same colour as the central area. The female is lighter throughout, the forewing having a brownish tint and a somewhat longer and broader submarginal band on the hindwing the basal area and the submarginal band whitish grey, the central area and distal margin grey-brown. - From East Siberia: at Pokrofka and the mouth of the Jenisei, in June.[2]

Adults are on wing from May to late July depending on location.[3]

The larvae feed on Carex species.

Subspecies
  • E. f. faciata (Nunavut to central Alaska)
  • E. f. semo Grum-Grshimailo, 1899 (northern Siberia, western Chukot Peninsula, Far East)
  • E. f. avinoffi Holland, 1930 (north-western Alaska, eastern Russia)

Similar species
  • Red-disked alpine (E. discoidalis)
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gollark: Well, if you enslave them and use the other humans for parenting, you just need to supply food.

References
  1. "Erebia Dalman, 1816" at Markku Savela's Lepidoptera and Some Other Life Forms
  2. Eiffinger, G. in Seitz. A. ed. Band 1: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen Tagfalter, 1909, 379 Seiten, mit 89 kolorierten Tafeln (3470 Figuren) This article incorporates text from this source, which is in the public domain.
  3. Banded Alpine (Erebia fasciata), Butterflies of Canada


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