Orthotrichia costalis (Curtis, 1834)

Distribution:   Norway, Sweden, Finland

Figures:  1-3, ♂-genitalia: 1 - left side, lateral, 2 - ventral; 3 - dorsal. 4-5, ♀-genitalia: 4 - ventral; 5 - lateral. 

Comments: 

Tobias & Tobias (2008): Trichoptera fennoscandinavica. - HTML Document