Brimstone (Gonepteryx rhamni L.) on the wing

♂ seen crossing over A32 (just N of J10 on the M27) .. the first butterfly I have seen on the wing this spring .. and some 2.5 months after the first recorded sighting of the year for this species on 8th Jan 2011 somewhere in Wiltshire ..

see http://www.butterfly-conservation.org/