It can be fun to rear caterpillars, and captivity makes for a safer environment for them. I thought you might like to see some photos of one of my latest. On the 14 May 2008 I found 3 caterpillars while out walking in Brede High Wood. They were on the trunks of Oak trees tucked into the crevices on the bark. I took them home and fed them on Oak leafs. One made a pupa on May 24, and the other two on the 25. Over the last few days they have just emerged, and they are truly beautiful. They are called Merveille du Jour - Dichonia aprilina. I have released them all back into the wild, where I hope they will find mates and start the process all over again.