BC: Arras, 2.IX.1930 (R. Graham) [UBC]; Beatton River, 7 mi S of Rose Prairie, 14.V.1944 (G. Stace Smith) [UBC]; Creston, river bank, 1,750 ft, 6.VIII.1933 (G. Stace Smith) [UBC]; Creston, 4.XI.1945 (G. Stace Smith) [UBC]; Fort St. John, 3.VII.1930 (R. Graham) [UBC]; Peace River Bridge, Alaska Hwy., 17.VI.1944 [UBC]; Sinclair, 22.V.1953 (G. Stace Smith) [UBC].
Previously known only from CA and OR (Bousquet and Larochelle 1993).
The wings are apparently always fully developed (Lindroth 1993).