This is the Common Brimstone (Citroenvlinder; Zitronenfalter; Citron; Gonepteryx rhamni), females have a greenish tinge where the males are more a sulphur yellow.

Its wing shape is rather unique and is supposed to act as camouflage while resting and hibernating.

The Brimstone has a wide presence worldwide from Europe and Asia as far east as Mongolia, more southwards in North Africa.

It is one of the longest lived butterflies: up to 13 months.

A popular myth says it's this species that gave rise to the name "butter"fly (after the male's color)

©Don de la Rambelje/Plus1 Photography