Species: Rhyacophila tucula Ross 1950

Larvae are associated with riffles of small streams (Smith 1984). Smith (1984) suggests this species is univoltine with a flight period from early August to early September. In Alberta Nimmo (1971) collected adults from late August to mid October.

References:

Nimmo, A.P. 1971. The adult Rhyacophilidae and Limnephilidae (Trichoptera) of Alberta and Eastern British Columbia and their post glacial origin. Quaest Ent. 7:3-234.

Smith, D. H. 1984. Systematics of Saskatchewan Trichoptera larvae with emphasis on species from the boreal streams. Ph.D. Thesis U. of Saskatchewan, Saskatoon. SK 1302 pp.