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Global Range: (Unknown) Discover Life maps only four localities, in Jackson County Oregon in 1955, Riverside County, California in 1984, and Archuleta County and "Mill Gulch" in the Platte Canyon, Colorado both in 1919. The Archuleta County record is for the Holotype. Platte Canyon could be either Douglas or Jefferson County (or both) of Scott et al. (2011) or a fifth locality. Krombein et al. (1979) list Oregon, colorado, and California as the range. Scott et al. (2011) list Archuleta, Douglas, and Jefferson Counties for Colorado.