Man, you guys have been busy!
Let's see. Cheryl, I can't see your whole plant, but I think they're congregating where the food is. Or the freshest food is. Also, those two photos are both Variegated Frits. One is just oranger than the other. Yes, oranger is a word! The other one looks like a Meadow Frit, but I can usually only tell those by size comparison. I've only seen them in West Virginia.
Remember David, just like we're seeing an increase in butterflies near the end of summer / beginning of fall - other things have had all year to breed, too. Things like viruses, OE spores, things that parasitize eggs and caterpillars. With the higher humidity, things can get really gross down here in Florida. Keep fighting the good fight! The percentage you raise will still be better than those left in the wild.
Jack, I think we all need a field trip to your house! Love those Question Marks. I got so excited when I saw one at Silver Springs and I was super bummed that I didn't get a photo. I even walked headlong into a patch of Spanish Needles to follow it! I swear, one of these days, someone will yell at me.
I'm also loving the pattern on that moth!