Initially, I was just going to leave the caterpillar where it was, but then it dawned on me that it would probably meet the same fate that his brother on the dill did. I so wanted this little guy to have a chance to be a butterfly. So, I made the decision to give him that chance, and brought him into the house and put him in the biggest glass vase I could find with plenty of ruta for food. After a short period of exploration he just started to eat and eat and eat.