Figs 5 A, B
Material studied. CANADA, Alberta, Munn Creek, 53°30’ N, 118°10’ W, spruce forest, Malaise trap 23.vii– 15.ix.1994 (1 male in PWMP).
Discussion. The studied specimen resembles the Holarctic Claustropyga aperta, but differs in the lower
number of gonostylar megasetae (6 versus 9) (Fig. 5 A) and by lacking any sign of a tooth-like lobe on the lateral margin of the tegmen (Fig. 5 B; Hippa et al. 2003: figs 6 c–d; Vilkamaa & Hippa 2007: figs 2 F–E). We suspect that this specimen represents an undescribed species.