A pair of Silver-studded Blue Butterflies mating on a grass seed head. The species gets its name from the pale blue, reflective spots on the underside of the wings. The spots (or studs) can be seen on the female in this shot which is the lower butterfly.
Photographed on Prees Heath, Shropshire, England in the mid 1990s. The butterflies on Prees Heath are isolated, the nearest other colony being some distance away in North Wales. In fact this population is the only one found in central and northern England. The species is not found in Scotland.