I found some larvea on Urtica dioica,but im not sure if they're going to be butterflies.
Each larve was wrapped in one leaf. They have 3x2 front legs, then 2 segments without legs, then 4x2 legs, 2segments without, and 1x2 legs at the end.
i found one 'large' one, about 12mm, black. Also 4 smaller ones, green/yellow with black dots.. about 6mm long.
i think they are the same spiece, because they react the same.
Thanks in advance!