{{Short description|Species of butterfly}} {{Speciesbox | name = Pink-edged sulphur | image = Colias interior on plant.jpg | image_caption = Pink-edged sulphur on a purple flower | status = G5 | status_system = NatureServe | status_ref = <ref>{{cite web |title=Colias interior |url=https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.117126/Colias_interior |website=NatureServe Explorer |publisher=NatureServe |access-date=2026-05-30 }}</ref> | taxon = Colias interior | authority = (Scudder, 1862) | synonyms = | range_map = C. interior map.jpeg }}
'''''Colias interior''''', the '''pink-edged sulphur''', is a species of North American butterfly in the family Pieridae. It is the State Butterfly of Maine<ref>Maine Legislature. (2025). ''1 M.R.S. § 231: State butterfly''. <nowiki>https://legislature.maine.gov/statutes/1/title1sec231.html</nowiki></ref>.
==Description== This species is a yellow butterfly with black marginal borders, which are reduced in females. The hindwing has one central spot, and the wing edges are pink. Black marginal spots are absent. The wingspan for this butterfly is 39 to 66 mm<ref name=":0">{{Cite web |title=Pink-edged Sulphur Colias interior Scudder, 1862 {{!}} Butterflies and Moths of North America |url=https://www.butterfliesandmoths.org/species/Colias-interior |access-date=2026-05-30 |website=www.butterfliesandmoths.org}}</ref>.
==Distribution== See range map.
==Life cycle== There is one flight between June and August<ref name=":0" />. The adult female lays eggs on blueberry plants.
=== Larval foods === *''Vaccinium'' *''Ericaceae''
===Adult foods=== *''Aralia hispida'' *''Pilosella aurantiaca''
==References== {{wikispecies}} *{{Cite book | last = Darby | first = Gene | title = What is a Butterfly | publisher = Benefic Press | location = Chicago | date = 1958 | page = 37 }} *{{cite web |title= Butterflies and Moths of North America (Pink-edged Sulphur) |url= http://www.butterfliesandmoths.org/species?l=1431 |accessdate= 2008-10-15 |publisher= Montana State University |archive-url= https://web.archive.org/web/20110108033523/http://www.butterfliesandmoths.org/species?l=1431 |archive-date= 2011-01-08 |url-status= dead }} *[http://www.cbif.gc.ca/spp_pages/butterflies/species/Pink-edgedSulphur_e.php Pink-edged Sulphur], Butterflies of Canada
{{Taxonbar|from=Q1312623}}
Category:Butterflies of North America interior Category:Butterflies described in 1862 Category:Lepidoptera of the United States Category:Taxa named by Samuel Hubbard Scudder
{{Coliadinae-stub}}