Wear a t-shirt! Discovery World Tropical Forest at the Otago Museum is hosting ~1000 tropical butterflies in an artificial rainforest. The exotic inhabitants also include tarantulas, turtles and finches—which are liable to be underfoot.
99% certain this is a Morpho butterfly, a character commonly found in South and Central America. Morpho—”of shapely form”—was an epithet of the Greek love goddess, Aphrodite.