59.015 Boloria (clossiana) selene (Small Pearl-bordered Fritillary)
ws: m35-41mm, f38-44mm; May-Jun occasionally bivoltine Aug in SW.England, Jun-Jul in N.Scotland; common dog-violet / marsh violet (Viola riviniana/palustris); open areas in deciduous woodland in SW.England and Wales, moorland or grassland in NW.England and Scotland.
ID: Underside hindwing with 7 interneural silvery-white chevrons (pearls) along the terminal border; a large black spot in an orange cell and several additional white cells in the basal half of the wing. Similar to B.euphrosyne (Pearl-bordered Fritillary) which also has the terminal pearls, but has a small black spot in the orange cell and only two white cells in the basal half of the wing. Where B.selene shows a black angular cap to each of the terminal pearls and a row of black spots proximal to these, in B.euphrosyne these marks are reddish-orange.
Page published 24/05/2014