Brimstone Butterfly

Gonepteryx rhamni

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End of July - mid June When at rest, the Brimstone always has it's wings folded, as in the picture below, and appears more yellow in flight. It's 'butter' colour is thought to have given rise to the term 'butterfly'.
The adult butterfly overwinters, and will emerge on warm days in autumn and spring.

Butterfly food plants
Aubretia, Buddleia, Lavender, Purple Loosestrife, Runner Bean, Scabious

Caterpillar food plants
Alder Buckthorn, Purging Buckthorn