Not long ago I saw what I believe was a Wild Indigo Duskywing laying eggs on my large baptisia australis and two small pots of first year canada milk vetch that I hadn't planted yet. I couldn't find the eggs on the baptisia, but saw a few on the milk vetch.

I brought the milk vetch inside to protect them and watch the process since I never raised them before. There were more eggs than I thought on it and now the milk vetch is mostly gone. There are at least 5 large cats crawling around in the enclosure off the plant now. They left their leaf nests when they got big, I assume because these plants have very tiny leaves.

Are they looking for a place to pupate, or overwinter as cats? I'm going to bring in some baptisia australis cuttings to see if they will eat that or make new leaf shelters in it. Hopefully they are not picky about switching plants. Or should I just put them outside on the baptisa australis? We don't use AC much so there shouldn't be much of a temp/humidity difference to shock them. I also have lupinus perennis. It seems early for them to just overwinter as cats. I should have looked more closely and just brought in a few eggs off the plant and some cuttings and left the rest to nature. Any advice would be appreciated.