page_title: Colias hecla
section_title: Subspecies
hierarchical_section_title: Colias hecla / Subspecies
caption_attribution_description: Colias hecla sulitelma Arnold Spuler: Die Schmetterlinge Europas. 3, E. Schweitzerbartsche Verlagsbuchhandlung, Stuttgart 1910.
context_page_description: Colias hecla, the northern clouded yellow or hecla sulphur, is a butterfly in the family Pieridae. In Europe, it is found in the northern part of Norway, Sweden and Finland up to heights of 900 m. It is also found in Greenland, Alaska, the Northwest Territories, Yukon, Quebec, Labrador, Manitoba, the Chukot region, eastern Chukotka, and the Russian Far East.
  The wingspan is 36–46 mm. The butterfly flies in June to August depending on the location.
  The larvae feed on Astragalus species, including Astragalus frigidus and Astragalus alpinus as well as Trifolium repens. They are also known to feed on Salix arctica where Astragalus are absent.
context_section_description: C. h. hecla (Greenland)
  C. h. glacialis (Alaska and the Northwest Territories, Yukon, Quebec, Labrador)
  C. h. hela (Manitoba, Northwest Territories)
  C. h. aquilonaris or C. h. orientis (Chukot region, Far East)
  C. h. sulitelma (Scandinavia, northwestern Siberia)
  C. h. zamolodchikovi (East Chukotka)
  C. h. viluiensis Ménétries, 1859 (Transbaikal)
  C. h. sulitelma is sometimes treated as a separate species Colias sulitelma. If that is the case, C. h. zamolodchikovi is considered a subspecies of Colias sulitelma, named Colias sulitelma zamolodchikovi.
  Furthermore, Colias canadensis is sometimes treated as a subspecies of Colias hecla, named C. h. canadensis.
caption: C. h. sulitelma
exif: {}