I did find some websites online that might be useful if anyone is interested in raising butterflies this summer…Their typical life cycle is a couple weeks and then you can release them. You can also raise them in the winter, but obviously you have to be prepared to keep them inside for the duration of tier life cycle (aka… until they die).
All about Painted Lady Butterflies
Purchase milkweed seeds at Butterfly Encounters
My Monarch Guide
Purchase live Monarch eggs or larvae at Live Monarch
The Butterfly Site also has some great information and kits to purchase