Camptochaeta duplicata Hippa & Vilkamaa, 1994
Literature: Hippa & Vilkamaa (1994): 14, fig. 3 A‒D.
Material: 1 male, 4.vii.1974, USA, Washington, Lewis County, La Wis Campground, Grant Purcell Falls, leg. P. H. Arnaud (PWMP) ; 1 male, 24.vii.1974, Oregon, Marion County, Silver Falls State Park, North Falls, leg. P. H. Arnaud (CAS) .
Comments. The species is similar to Cam. hirtula (Lengersdorf, 1934), but differs by having two pairs of medial spines at the apical half of gonostylus. Moreover, the tegmen is wider than high and not unusually elongated and apically narrowed as in Cam. hirtula .
Distribution. Holarctic; USA (Washington, Oregon). New for North America.