MONTANA: Deer Lodge Co; Deer Lodge National Forest, Georgetown Lake, Phillipsburg Bay Campground - male - August 2011
MINNESOTA: Cook Co; Superior National Forest, FR 154 at Mud Creek - female - August 2010
Note inset photos which show triple row of cells in area beyond forewing triangle (separating this species from Frosted Whiteface, L. frigida) and single row of cells in forewing's radial planate (separating this species from Crimson-ringed Whiteface, L. glacialis)