DistributionRead full entry
RangeThis species was once found in Britain from Lincolnshire south to Dorset, but is currently known from less than 30 sites (3). The main areas are the North and South Downs, the Chilterns, the Wiltshire plains and limestone areas of Gloucestershire and Oxfordshire (1); the main stronghold of the species is the Cotswolds (5). It has also been introduced to many sites (1). Elsewhere it is distributed from Morocco and the Pyrenees in the south, to Britain in the north and Turkey and the Urals in the east (4). It rare in northern Europe and Scandinavia (6), reaching as far north as southern Sweden (2).