File:Citrus Swallowtail Papilio demodocus.jpgPapilio is a genus in the swallowtail butterfly family , Papilionidae. It includes a number of well-known North American species such as the Western Tiger Swallowtail, Papilio rutulus.... machaon, or Old World Swallowtail
Old World Swallowtail
The Old World Swallowtail , is a butterfly of the family Papilionidae. The butterfly is also known as the Common Yellow Swallowtail or, simply, The Swallowtail .... , a butterfly named by Carl Linnaeus
