White-letter Hairstreak - Satyrium w-album
Favourite Photos
Species Description
Widespread but patchy and local in the Southern half of the UK. Habitat includes: Anywhere with aged populations of Elms such as ancient woodland, hedgerows, scrub etc. Wingspan: 36 mm. Flight period: Late June to Mid August. Food plant: Elms (Ulmus) especially Wych Elm (U. glabra). This butterfly has crashed in numbers (93% in the last 50 years).