Papilio solstitiusPapilio solstitius, commonly known as the midsummer tiger swallowtail, is a species of swallowtail butterfly, in the genus Papilio. It is closely related to Papilio appalachiensis, Papilio canadensis, and Papilio glaucus.EtymologyPapilio solstitius gets its name from the Latin word solstitius, which means solstice. It gets this name because of its flight pattern, being in the midsummer, near the summer solstice.DistributionPapilio solstitius is native to the Northeastern United States and Southern Ontario.