Brimstone Butterfly

I spent the morning practising lettering and writing a poem on a wedding card for some friends. I caught up with some chores and the garden after lunch. There were lots of bees and butterflies buzzing around as it has returned to summer today and we had over 30 degrees. 
This Zitronenfalter (Brimstone Butterfly) looks green on the plant but was more of a light yellow when flying around in the sun.