. . . . . . . . . "Polygonia comma" . . "Ulmus" . . "crgillette. 2017. Polygonia comma insect host plant Ulmus. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/6460532> on 05 Apr 2018." . . . . "http://iNaturalist.org is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world." .