I'm afraid my little geometrid larva won't survive long enough for me to find out what it grows up to be. I found 23 eggs on a milkweed leaf at the start of September. They hatched a couple weeks later. Now there are only two left, one is almost half an inch long and the other one is much smaller. I haven't seen them eating lately, and I'm getting low on milkweed leaves. What kind of moth lays eggs in September and has offspring that don't mature after two months? The third picture was taken about a week ago. I'd guess this one is about 8mm long when stretched full length. I have it in a container with dirt, a wilted milkweed leaf, a small piece of lettuce, and a milkweed pod. It wants to hide all the time. I can't tell if it's eating anything. I don't know what stage it's at in its development or how to provide what it needs at this point.