These are taken on my iPhone so they aren't the best ever, but they are still pretty neat IMHO.
A butterfly poses under the name of the exhibit.
They had a card identifying species, but I don't have the one I saved handy.
In addition to the hundreds of butterflies fluttering about, the flowers grown for them to feed on were also lovely.
Some of them were particularly hard to photograph, either by being camouflaged or by hiding their best colors upon landing.
Here, a butterfly lights on the knee of an elderly nun visiting the exhibit.</td>
And as a bonus, here's a butterfly that visited my prairie earlier this year.