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Northern Clouded Yellow (Colias hecla) Caterpillar, Thule, North-West Greenland
The Northern Clouded Yellow or Hecla Sulphur (Colias hecla) is one of the very few butterfly species still to be found in Northern Greenland. In Europe, it is found in the northern part of Norway, Sweden and Finland up to heights of 900 m. Beside Greenland It is also found in Alaska, the Northwest Territories, Yukon, Quebec, Labrador, Manitoba, the Chukot region, East Chukotka and the Far East.