I know this is a butterfly forum but I figured you guys could probably answer a luna moth question...I found a very large (guessing probably last instar) luna moth caterpillar on my gravel driveway. Trees around include ash, tulip pops, red buds, spice bushes and sassafras. I put the caterpillar on a spicebush (Lindera benzoin) leaf because I thought it was safer (less visible)on a green leaf. Do luna moths pupate on any particular species? It seemed very active as if it knew where it needed to go. Hope I did the right thing putting it back on a tree? Did I?

Thanks!