(Figs. 54–55 in Lohse et al. 1990; Fig. 1 in Lohse 1991)
Pseudousipalia microptera Lohse in Lohse et al., 1990: 150.
Pseudousipalia microptera: Lohse, 1991: 20.
Type material. Holotype of Pseudousipalia microptera: CANADA: Yukon Territory: ♂, British Mts., “June Creek”, 320 m, 3 km NW Firth River, 69º13’N 140º05’W, sifting Salix and Alnus litter, 29.vi.1984 (J.M.Campbell) (CNCI). Paratypes: CANADA: Yukon Territory: ♂, Keno, 5000’, 18.vii.1968 (Campbell & Smetana) (CNCI); ♂, ♀, British Mts., “Windy Ridge”, 450 m, 69º27’N 140º26’W, sifting Salix litter, 2.vii.1984 (J.M.Campbell); ♀, British Mts., Fish Creek, 180 m, 69º27’N 140º19’W, sifting litter under dwarf Populus, 1.vii.1984 (J.M.Campbell) (CNCI).
Additional material. CANADA: Yukon Territory: 3♂♂, ♀, 8 mi. NW Keno, 6000’, 19.vii.1968 (Campbell & Smetana); 2♀♀, Keno, 5000’, 18.vii.1968 (Campbell & Smetana) (CNCI); UNITED STATES: Alaska: ♂, Mi. 1252, Alaska Hwy., 7.vii.1968 (Campbell & Smetana); ♂, Prudhoe Bay Road, creek near Minnie Creek, 1.vii.1978 (J.M.Campbell); ♂, Mi. 43, Taylor Hwy., 8.vii.1968 (Campbell & Smetana) (CNCI).
Diagnosis. See Lohse et al. (1990).
Distribution. Emmelostiba microptera is known from Alaska and Yukon Territory.