“…Next, in the middle of the XX century, studying was renewed by Lepneva (1948Lepneva ( , 1949. Intensely studying of trichopteran diversity of Western Sayan was started at the end of XX and at the beginning of XXI century (Zaika, 1993(Zaika, , 2004(Zaika, , 2006(Zaika, , 2009(Zaika, , 2019Dragan, 2013Dragan, , 2014Dragan, , 2019aDragan, , 2019bGlushenko et al, 2009;Zuev et al, 2012;Adrianova et al, 2013, Adrianova, 2015. Up to present the species list of caddisflies from of the Western Sayan includes 81 species, but this is evidently far from complete for this territory.…”