. . . . . "The Oregon swallowtail (Papilio oregonius, sometimes classified as Papilio machaon oregonius or Papilio bairdii oregonius) is a species of swallowtail butterfly native to the United States of America, Oregon, Washington, and Idaho and south-central British Columbia in Canada. In 1976, it became one of the first four butterflies that the United States Postal Service placed on a U.S. stamp.The Oregon swallowtail was declared the state insect of Oregon in 1979 by the Legislative Assembly."@en . "Oregon swallowtail"@en . . . . . .