It's Winter right now so the main way to see any butterflies is to visit a heated butterfly house.
Last week I was away for a few days and was lucky enough to be able to visit one of those in Dunedin. The exhibit is called "The Tropical Rain Forest" and is set within the Otago Museum in Dunedin city. They have many species of butterflies that would normally be seen in more tropical areas of the world, along with a few Zebra Finches and Java Finches that are kept in the butterfly house to keep spiders down.
It's a fabulous experience.
***Click on the first picture, below, and then click through to see the pics in a larger size***