It has been a while, that I really saw him again. This time it was n't just a glimpse. He took all the time to drink from the Nepeta flowers. I did n't know he likes those flowers. I only knew they love the Foeniculum (Fennel) and carrots. Anyway, he sat there for a long time, flew away several times, to come back again and again.
That was a real treat for me, as I photographed and filmed this butterfly from caterpillar to cocoon and the coming out, back in 2007
This is such a beauty, living mostly in the southern parts of Europe, but when summers are hot, they also migrate higher up north to the Netherlands.