340 species from the family Noctuidae were reported from the territory of Omsk Province. 141 species were recorded from Omsk Province for the first time (marked with *), 9 species were recorded from the West Siberian Plain for the first time (**), namely

Резюме. Впервые для фауны России указывается тонкопряд Triodia nubifer (Lederer, 1853). Указывается материал с территории русского и казахского Алтая. Дается описание вида и сравнение его с близкими таксонами.Summary. Triodia nubifer (Lederer, 1853) is recorded from the Russian territory for the first time. Specimens from Russian and Kazakhstan parts of Altai, including syntype, are illustrated. Description of T. nubifer (Led.) and comparison with similar species are presented.