Butterflies have been studied in Nepal for over 150 years, with much of the original study and collection done by the British, including one British diplomat in Kathmandu at the time. After 1950, the Japanese became involved in collection through scientific expeditions, and this resulted later in the establishment by Tribhuvan University of the Natural History Museum at Swayambhu in 1974. Records show that Nepal has 11 out of the 15 families of butterflies in the world, or over 500 species, and still today in the 21st century new species keep turning up.
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