("Asian swallowtail" redirects here. For the other butterfly with this common name, see Papilio lowi.) Papilio xuthus, the Asian swallowtail, Chinese yellow swallowtail or Xuthus swallowtail, is a yellow-colored, medium to large sized swallowtail butterfly found in northeast Asia, northern Myanmar, southern China, the Korean Peninsula, Japan (from Hokkaidō to the Yaeyama Islands), Siberia and the Hawaiian Islands. It was also recorded in the state of Arunachal Pradesh, India, in 2014.