Pearl-bordered Fritillary

National Status

Scattered locations in Scotland, England and Wales, range contracting in England and Wales. Population trend 10 years to 2016 +45%; since 1976 -71%.

West Midlands Status

Isolated colonies, range contracting, recently reintroduced to the Malvern Hills. Population trend 10 years to 2016 – increasing.

Habitat

Associated with edges, rides or open spaces within woodlands but it can also occur on rough hillsides where there are mosaics of Bracken (Pteridium aquilinum), grass and scrub.

Flight Period

Late April to mid-June.

Hotspots

Wyre Forest (Worcestershire); Llanymynech (Shropshire); Ewyas Harold and Coppett Hill (Herefordshire).

Caterpillar Food Plant

The primary larval foodplant is Common Dog-violet (Viola riviniana). Heath Dog-violet (Viola canina) and Marsh Violet (Viola palustris) are also used.