The first is a large tree nymph/Idea leuconoe.
The second is a great egg-fly butterfly/Hypolimnas bolina.
I think the third is probably Parides photinus/pink-spotted cattleheart, but there are MANY tropical swallowtails with that coloring.
And the fourth is a malachite/Siproeta stelenes.
Sherry

Here is a link that might be useful: Parides photinus

Wow. Really pretty butterflies! Thanks for sharing!

Thanks for the ID's. There were so many beautiful butterflies but that Hypolimnas bolina was so striking with those iridescent blue & white spots. I thought the Parides photinus looked like a swallowtail but I never realized just how many types of swallowtails there are in the Americas!

I also saw the coolest looking caterpillar, the Hickory Horned Devil in it's final instar. I've never seen the caterpillar before nor have I seen the Regal moth it turns into. Both are quite beautiful.

Was it Brookside Botanical Gardens in Wheaton, Maryland? That is an incredible exhibit this year. It runs until Sept. 19. If you are in the area, you've got to go.

I have been giving them Baltimore Checkerspot stock to display for education.

Here is a link that might be useful: Wings of Fancy

That's it. I've been going to Brookside and Wheaton Regional since I was a little kid. It's only about 20 minutes from my house. This year the butterfly exhibit was especially nice. It's nothing compared to Butterfly World in FL but for a small exhibit they had a very nice variety this year.

@runmede: Thank you! I always enjoy their Balt. Checkerspot exhibit when I go.

Jeff