Live butterfly larvae?

Question:I just planted a butterfly garden containing milkweed and some other kind of butterfly attracting plant. What places on the internet let you buy butterfly larvae that I could release in my garden? I know there are some kits around but I don't want a kit where you release the grown butterflys I would like to release them as caterpillers.

Links please. THANKS! And, does anyone here have a butterfly garden that would like to share some ideas and other things?

Answers:
I really don't know, but try googling butterfly cocoons. My friend does monarchs every year. Oh, you don't release them as caterpillars. They are great food for birds.