Monarch back - Phil's Rambling Rants — LiveJournal
I think lunas are very rare here; cecropias are a bit commoner. I don't know how to look for them, which probably doesn't help.
I think like most other moths if you are out at night and find a strong light source, they can't resist flying circles around it. I found a rather large flock of them, lunas and cecropias, that way sround Sprague, Manitoba once.