Papilio dialis (Leech, 1893)

"Viet Nam" ssp dodsi, one of 2 tailess subspecies Hainan Island, China 1991 ssp cataleucas
Yunnan China ssp dialis same data verso
Taiwan Island ssp andronicus

   Generally uncommon from S China to N Burma, Northern Laos, and Vietnam. Local. The nominate race is tailed and resembles P bianor; the two can be separated by close examination of the tails - dialis has uniform green dusting completely covering the tail while bianor has the scales concentrated in a streak running down the length of the tail.