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A butterfly house, conservatory, or lepidopterarium is a facility which is specifically intended for the breeding and display of butterflies with an emphasis on education. Some butterfly houses also feature other insects and arthropods. Butterfly houses are owned and operated by museums, universities, non-profit corporations, and private individuals as part of their residence; as well as small businesses that are owner operated.
Live butterfly exhibits became popular in England in the end of the 1970s, appealing to the British love of greenhouses and natural settings.
The tropical world's first live butterfly and insect sanctuary is Penang Butterfly Farm in Penang, Malaysia, established on March 29, 1986.
The first butterfly house in the United States, Butterfly World, opened in Coconut Creek, Florida, in 1988.
Butterfly houses are typically open to the public.
Exploration of such facilities may be with a guide or self-paced. Guided tours may last about fifteen minutes, as the guide points out all the species of butterflies that are in the greenhouse that day. Stocks vary, as new shipments usually arrive weekly. Guides may also show butterfly eggs, caterpillars, and chrysalids and identify specific plants that are favored by each species. Usually, the best time to see butterflies emerging from their pupae is between 10 a.m. and 1 p.m.
There are often many different species in such butterfly houses, with stock including butterflies from Africa, Malaysia, South America, Thailand, Costa Rica, the Philippines, and other places. The vibrant colors and patterns on the wings of the insects have earned them the fanciful nickname "flying flowers".
Many species of adult butterflies live only one to two weeks, during which time they must produce a new generation. Some species, such as the familiar monarch butterfly, however, can live as long as six months or even longer in the wild.