Swallowtail butterfly passed in a pupal diapause stage. As swallowtail butterflies are large, colorful, and attractive, they were once targeted by butterfly collectors. The largest of these, the birdwing butterflies are particularly sought after and are cultured in butterfly farms for the purpose of collectors. Many members of the family feed as larvae on plants of the citrus family, Rutaceae. Some of these attractive butterflies are therefore considered pests in citrus orchards. The Oregon swallowtail is the state insect of Oregon. The eastern tiger swallowtail is the state insect of Virginia and the state butterfly of Georgia, Delaware, and South Carolina. The
Swallowtail (flag) Swallowtail (flag) In flag terminology, a swallowtail is either The name comes from the forked tail that is a common feature of the swallow species of birds. Common in Scandinavia, this swallowtail flag contains a vertical section in the centre of the fly. Also common in the Nordic countries, the swallowtail flag contains a third tail (the "tongue") between the other two tails. This is the shape of the United States' state flag of Ohio, as well as some burgees, private signals and pennants of the International Code of Signals (ICS) use a triangular swallowtail shape. A guidon is the