Bailey's Apollo Parnassius baileyi is a high altitude butterfly which is found in S.W. China (Sichuan, northern Yunnan and eastern Tibet). It is a member of the Snow Apollo genus Parnassius of the Swallowtail (Papilionidae) family.The taxonomic status of this butterfly is uncertain. Parnassius baileyi was originally described as a subspecies of Parnassius acco, later as a subspecies of P. rothschildianus Bryk, 1931 and also P.