Colias nastes
 The Labrador Sulphur (Colias nastes) is a butterfly in the Pieridae family. In Europe it is found in the North of Norway and Sweden and on rare occasions in Northern Finland. It is also found in North America specifically in Alaska Canada and the Rocky Mountains Washington Montana and on Greenland. In Asia it is found in the Altai Mountains the border regions of Russia China Mongolia Kazachstan the Sayan mountains the North of Siberia and in the Chukotka Autonomous Okrug.