I raise moths, too. This year I had Luna. I have so many caterpillars and pupae wintering over right now. The Monarchs migrate because they cannot withstand freezing temps. Many other butterflies do a partial migration. The other butterflies winter over as caterpillars, pupae, or adults (mourning cloaks, question marks, commas).
I have Pipevine, Black, Zebra, Spicebush, and Tiger Swallowtail pupae. Red Spotted Purple (caterpillars). All the Luna have emerged. A friend gave me a few Silvery Checkerspots.
I also still have a few Monarch caterpillars and pupae. I was out-of-town this weekend and took some adult Monarchs to release where it is a bit warmer--further south in Virginia.
Herndon, VA (USA)
Take care of the small things....