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Published online by Cambridge University Press: 31 May 2012
Close to timberline in the northern part of the Olympic Mountains, particularly in the Gray Wolf Range of these mountains in the State of Washington, a small race of Plebeius lupini Bdv. occurs that is quite distinct in character. The Olympic Mountains, adjacent to the sea and snow-capped throughout the entire year, present quite a different environment to that which exists in the habitat of many insects.