Only the hardiest of butterflies ever ventures north of South Florida´s subtropical zone. Oh sure, temperate-region dwellers may get a colorful eyeful during visits to museums of natural history, but those lepidoptera are impaled and quite, quite still. Butterfly World, on the other hand, has created screened, outdoor gardens alive with fluttering brilliance. The plants and flowers that grow in the 240,000-cubic-foot habitat replicate the flora that butterflies depend upon in the wild. There are also more than 5,000 butterflies representing 80 species from South and Central America, the Philippines, Malaysia, Taiwan, and other Asian countries. If you´re motionless, some will light upon you. For the jaded out-of-towner from the tropics, hundreds of species native to Florida also swish about the outside gardens.