theres a story behind this species,they can be found at ryton woods butterfly conservation,well last summer i took a picture of a butterfly...when i got it on the laptop it took an age to identify it because i'd never seen one before....i finally got it down to this species,but on the website it said extinct in warwickshire for about 50 years.....so i e-mailed the relevant person asking how i found one....the reply was that they'd been officially,but unofficially reintroduced