Oligotricha lapponica (hagen, 1864)
Distribution: Norway, Sweden, Finland
Figures: 1-4, ♂-genitalia: 1, 2 - lateral; 3 - dorsal; 4 - ventral. 5-7, ♀-genitalia: 5 - lateral; 6 - ventral; 7 - vulval lobes enlarged, ventral. 8, fore wing of male with typical reticulation.
Comments: Reticulations of wings highly variable, e.g. females from some locations in Swedish Lapland with uniform pale coloured fore and hind wings.
Tobias & Tobias (2008): Trichoptera fennoscandinavica. - HTML Document