Papilio dehaanii hachijonis (female)
 
This species is widespread in East Asia. Normally this species occurs in spring and summer. Summer form is bigger. "Karasu" in Japanese name means crow.
Papilio dehaani is a butterfly of the Palaearctic ecozone (Asia) and the Australasia / Indomalaya ecozone (Australia). The distribution extend from the Southeast of Russia to China, Japan, Myanmar and Thailand.Papilio dehaani, the Common peacock or Chinese peacock black swallowtail emerald or Chinese peacock is a species of butterfly in the family Papilionidae, the swallowtails. It is native to Asia and Australia. It is the state butterfly of the Indian state of Uttarakhand. This species is variable in size. Individuals emerged in the spring reach 4 to 8 centimeters wide, while those emerged in the summer can reach 12 centimeters. The forewings are black with dark veining and green scales. The undersides are brown, turning white distally with dark veining. The hindwings are tailed and have ridged edges containing reddish eyespots. The body is black with green scales. The male has black hair on the forewings, which the female lacks.
Subspecies