White Morpho butterfly. Photo by keagiles.
Click on the picture for a closer view.

I took this picture while visiting the local Butterfly Pavilion. Good thing too, because these beautiful beasties are only found in some locations in Mexico and South America (as per the Butterfly Pavilion website). I would try to describe the White Morpho for you, but I found that this site, “Gardens with Wings,” describes them much better than I could.