Small pearl-bordered fritillary  (Boloria selene)

Widespread throughout central and northern Europe and Asia. In Britain it has undergone a drastic decline and is now extinct in central and eastern areas, and is close to extinction in central-southern England. Strongholds remain in Scotland and Wales (2).

This species is found in four habitat types: woodland clearings, damp grassland and moorland, grassland with scrub patches or bracken, and open wood-pasture and woodland edges in Scotland (2). In all cases it requires abundant sources of the main larval foodplants, common dog-violet (Viola riviniana) or marsh violet (V. palustris), amongst damp grass and vegetation (4), and plenty of nectar-rich flowers as adult food-sources (4).