Does anyone know what this is?

Does anyone know what this is?

Observation - Does anyone know what this is?. Description: I found a lot of leaves rolled up with silk on my nettles in my garden. When I opened them I found green caterpillars. I took some inside and sucsessfully raised them to cocoon/chrysalis stage but I have no idea what is going to emerge! Does anyone have a

I found a lot of leaves rolled up with silk on my nettles in my garden. When I opened them I found green caterpillars. I took some inside and sucsessfully raised them to cocoon/chrysalis stage but I have no idea what is going to emerge! Does anyone have any idea what they could be?