Ongoing, feel free to contact me with omitted species and evidence of their availability past or present in the UK. Thanks, Viv.
Papilio helenus, the red Helen, is a large swallowtail butterfly found in forests of southern India and parts of Southeast Asia.
Papilio memnon, the great Mormon, is a large butterfly native to southern Asia that belongs to the swallowtail family. It is widely distributed and has thirteen subspecies. The female is polymorphic and with mimetic forms.
Papilio hipponous is a butterfly of the family Papilionidae. It is found in the Philippines.
Papilio lowi, the great yellow Mormon or Asian swallowtail, is a butterfly of the family Papilionidae. It is found in Borneo, Indonesia, and the Philippines (Palawan, Balabao).
Papilio polytes, the common Mormon, is a common species of swallowtail butterfly widely distributed across Asia.
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.
Papilio rumanzovia, the scarlet Mormon or red Mormon, is a butterfly of the family Papilionidae. It is found in the Philippines but has been recorded as a vagrant to southern Taiwan.