Ringlet
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Aphantopus hyperantus
Common Summer Butterfly in Britain.
Caterpillars are about 25 millimeters long.
They are grey or light reddish brown and have dark, reddish brown and very fine dots.
Dorsally there is a dark longitudinal line, which is widened at the segment boundaries.
The Larvae feeds on various grasses including Tufted Hair-grass.
The wing upper and lower sides are solid brown with small, yellowish-rimmed eyespots.
The newly emerged ringlet has a velvety appearance and is almost black with a white fringe to the wings.
Flight period is from June-August.