The eastern tiger swallowtail (Pterourus glaucus) was officially adopted on June 10, 1999, as indigenous to Delaware and commonly found in deciduous woods, along streams, rivers, and wooded swamps, and in towns and cities throughout Delaware. They were chosen based on a statewide vote of public and parochial students, out of suggestions from students of the Richardson Park Learning Center.Delaware Code Title 29 § 315
