There are about 20,000 recorded species of butterflies in the world. Among them, around 2,100 species can be found in China and around 240 species in Hong Kong. In urban parks of Hong Kong, some species of butterflies can be found. They are Skippers (Family Hesperiidae), Swallowtails (Family Papilionidae), Whites and Yellows (Family Pieridae), Blues (Family Lycaenidae), Nymphs (Family Nymphalidae) and Browns (Family Satyridae).