Papilio demoleus is a common and widespread swallowtail butterfly. The butterfly is also known as the lime butterfly, lemon butterfly, lime swallowtail, and chequered swallowtail. These common names refer to their host plants, which are usually citrus species such as the cultivated lime. Unlike most swallowtail butterflies, it does not have a prominent tail. When the adult stage is taken into consideration, the lime swallowtail is the shortest-lived butterfly, with male adults dying after four days and females after a week. The butterfly is native to Asia and Australia, and can be considered an invasive pest in other parts of the world. The butterfly has spread to Hispaniola island (Dominican Republic) in the Western Hemisphere, and to Mahé, Seychelles.
Description
The butterfly is tailless and has a wingspan 80–100 mm. Above, the background colour is black. A broad, irregular yellow band is found on the wings above, which is broken in the case of the forewing. Besides this, the butterfly has a large number of irregular spots on the wing. The upper hindwing has a red tornal spot with blue edging around it.
As the caterpillar ages, its hunger for leaf tissue continues to grow.
Detailed description as given by Charles Thomas Bingham in 1905:
'Bold text'==Status, range, and habitat==
P. demoleus is perhaps the most widely distributed swallowtail in the world. The butterfly can be found in:
The Southeast Asian subspecies Papilio demoleus malayanus recently established an abundant non-native population on Mahé in Seychelles This species was probably accidentally introduced to Mahé a few years ago (first records in November 2016). Further dispersal events of Papilio demoleus within Seychelles to other granitic islands of the archipelago, e.g. Praslin and La Digue, are expected.
Formerly absent from Borneo, it is now one of the commonest papilionids in Sabah and Sarawak in Malaysian Borneo, Kalimantan (Indonesian Borneo), and Brunei.
In recent years, the butterfly has spread to Hispaniola island (Dominican Republic) in the Western Hemisphere, and subsequently to Jamaica, and Puerto Rico. The Dominican population originated from Southeast Asia but how the butterfly reached there is not known.
The widespread range of P. demoleus indicates the butterfly's tolerance and adaptation to diverse habitats. It is found in savannahs, fallow lands, gardens, evergreen and semi-evergreen forests, and shows a preference for streams and riverbeds. In India, it is mostly found in the plains, but can be found on the hills of peninsular India and up to in the Himalayas. It is common in urban gardens and may also be encountered in wooded country. The butterfly is also a very successful invader, its spread appearing to be due to its strong flight, increase in urbanisation and agricultural land use that opens up new areas for dispersal, and greater availability of food plants.
Taxonomy
Five related butterflies form the group of lime butterflies in the genus Papilio of which P. demoleus Linnaeus, 1758 is the flagship species, which gives the name to the group. The other morphologically related butterflies are: Papilio demodocus (Esper, 1798) Papilio erithonioides Grose-Smith, 1891 Papilio grosesmithi Rothschild, 1926 Papilio morondavana Grose-Smith, 1891
The citrus swallowtail (P. demodocus Esper) is found in sub-Saharan Africa, while the other three species are endemic to Madagascar.
Research into the biogeography, phylogeny, and analysis of vicariance relationships dating back to the Cretaceous, of the "lime butterfly" or "demoleus" group, suggest that the group of lime swallowtails diversified in Madagascar in the middle Miocene.
Six subspecies are recognised in P. demoleus: P. d. demoleus Linnaeus, 1758 — Across Asia from China to the Arabian peninsula, and now colonized Turkey, Iraq, Syria, the Philippines, the Talaud and Sula islands, and the Moluccas (Ambon and Ceram) P. d. libanius Fruhstorfer, 1908 — Taiwan, Philippines, Sula, Talaud P. d. malayanus Wallace, 1865 — Sumatra and the Malaysian peninsula, and now expanded its range to Southern Europe (one record in Portugal), Greater Sunda Islands (Sumatra, Java, Borneo, and Bali), Wallacea (Sulawesi, Sumbawa, Lombok, Timor, Leti, Flores, Wetar, and Alor), New Guinea, Bismarck Archipelago, Christmas Island, Torres Strait Islands (Dauan Island), Greater Antilles Islands (Hispaniola, Jamaica, Puerto Rico, Cuba, and Nueva Gerona), and Seychelles (Mahé) P. d. novoguineensis Rothschild, 1908 — the southeastern edge of Papua New Guinea around Port Moresby P. d. sthenelus Macleay, 1826 — Australia P. d. stenelinus Rothschild, 1895 — Sumba, Flores, and Alor