 It can also be distinguished from the Arctic ringlet by the fact that it always has eyespots on its hindwings while the upperside of the Arctic ringlet's wings are plain brown.Another very similar species is the dewy ringlet, but that has a more rusty red forewing and the red strip along the underside of the wings is not continuous.It is questionable whether this butterfly occurs in the British Isles but historical collections of the Scotch argus ("Erebia aethiops") contain some specimens of Arran brown among the very similar specimens of Scottish argus.