Scotch Argus
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Erebia aethiops
Common in the Scottish Highlands & a few parts of Northern England.
The mature Caterpillar is yellow brown, with a brown head.
The Larvae feeds on Purple Moor-grass in the Scottish Highlands & Blue Moor-grass in Northern England.
The background colour of the wings varies from dark brown to black brown, with reddish-yellow bands, black eyespots with white pupils and greyish wing fringes, weakly chequered in the Females.
On the forewing there are three or four eyespots, usually two apical plus a third detached, while on the hindwings there are four or five.
The underside of the hindwings shows a whitish or cream banding but there is a slightly marked sexual dimorphism.
Flight period is July-August.