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The Arctic Blue or Glandon Blue (Agriades glandon) is a butterfly of the Lycaenidae family. In North America it is found from Alaska east to Newfoundland, south through the mountains to Washington, northern Arizona, and northern New Mexico. In Europe, it is found in mountainous areas like the Pyrenees and Alps, as well as the far north. It is also found in parts of Russia, including Siberia, and Kamchatka.
The wingspan is 17–26 mm. The butterfly flies from mid-May to September depending on the location (Butterflies of Canada).
Recorded food plants include Astragalus species (including Astragalus alpinus), Androsace species (including Androsace bungeana and Androsace septentrionalis), Soldanella, Diapensia, Vaccinium, and Saxifraga species (including Saxifraga bronchialis, Saxifraga spinulosa, and Saxifraga oppositifolia).