Erebia dromus is a member of the subfamily Satyrinae of the family Nymphalidae.<ref> Funet </ref> It is found in the Alps.In dromus H.-Schaff. (37i) the band of the forewing is broader and lighter [than in Erebia tyndarus , being more reddish yellow, the 2 subapical ocelli are larger, being mostly confluent and bearing bright white pupils. The band of the hindwing is always present and has 3 smaller ocelli which have nearly always white pupils. The hindwing beneath ashy grey or yellowish grey, but little dusted with brown, the band being obsolete.Georg Eiffinger in Seitz, A. ed. Band 1: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebiet.<es, Die palaearktischen Tagfalter, 1909, 379 Seiten, mit 89 kolorierten Tafeln (3470 Figuren)
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