Papilio nephelus is a species of swallowtail butterfly belonging to the family Papilionidae. Subspecies include P. n. chaon, the yellow Helen, and P. n. sunatus, the black and white Helen.
Image: Yellow Helen Papilio nephelus at Jayanti, Duars, West Bengal W IMG 5604
Image: Yellow Helen Papilio nephelus at Jayanti, Duars, West Bengal W IMG 5403
Black and white Helen (P. n. sunatus)
Yellow Helen at Jayanti in Buxa Tiger Reserve in Jalpaiguri district of West Bengal, India
Papilio helenus, the red Helen, is a large swallowtail butterfly found in forests of southern India and parts of southeast Asia.
Image: Red Helen (Papilio helenus) at Samsing, Duars, WB W IMG 6219
Image: Papilio helenus fortunius male 20131027
P. h. daksha, Kerala, India
Woodcut from The Fauna of British India, Including Ceylon and Burma