The scarce swallowtail (Iphiclides podalirius) is a butterfly belonging to the family Papilionidae. It is also called the sail swallowtail or pear-tree swallowtail. Subspecies Subspecies include: Iphiclides podalirius podalirius (Central and Southern Europe) Iphiclides podalirius feisthamelii (North Africa, Spain and southwest France) Iphiclides podalirius persica Verity, 1911 Iphiclides podalirius virgatus (Butler, 1865) Iphiclides podalirius feisthamelii is sometimes treated as a valid species, Iphiclides feisthamelii. Distribution Despite the name "scarce swallowtail", this species is quite common. The scarcity of United Kingdom migrants is responsible for the English vernacular name. This species is widespread in the East Palearctic realm and in most of Europe with the exception of the northern parts. Its range extends northwards to Lower Lusatia and central Poland and eastwards across Asia Minor and Transcaucasia as far as the Arabian Peninsula, Pakistan, India and western China. A few specimens of the scarce swallowtail have been reported from central Sweden and the United Kingdom but they were probably only strays and not migrants. Habitat These swallowtail butterflies inhabit gardens, towns as well as the countryside, in fields and open woodlands. They are found in places with sloe thickets and particularly orchards. In the Alps they can be found up to altitudes of 2000 m, but usually they prefer foothills and lower levels. The presence of Iphiclides podalirius in the floodplain of the Morava River in the Slovak Republic have been found to be a good indicator of relatively well preserved xerothermic grassland habitats with forest-steppe vegetation, which have no cutting history. Status In some years the scarce swallowtail is quite abundant. The scarce swallowtail is getting rarer as blackthorn bushes are being cleared. The butterfly is now protected by law in the Czech Republic, Slovakia, Germany, Hungary, Luxembourg, Russia, Ukraine and Poland. It is considered rare and endangered and protected in some provinces of Austria and of indeterminate status throughout Europe. In Armenia the species demonstrates stable population trend and is evaluated as Least Concern. Though referred by some authorities to be of status "vulnerable", it is however unlisted in the IUCN Red List. Description Iphiclides podalirius has a wingspan of in males, of in females. It is a very large distinctive butterfly. The background color of the wings is creamy white or pale yellow. On the front wings there are six tiger stripes and wedge-shaped markings. At the outer edge of the hind wings there are blue crescent markings,