Gonepteryx rhamni (known as the common brimstone) is a butterfly of the pieridae family. It lives in Europe, North Africa and Asia. Across much of its range, it is the only species of its genus, and is therefore simply known locally as the brimstone.
On the upper side the male is sulphur yellow and the female white with a greenish tinge but both have an orange spot in the centre of each wing. They never settle with their wings open and from the underside the sexes are more difficult to separate but the female is still paler.
A happy new week all 🙂