LEPIDOPTERA
N Y M P H A L I D A E Swainson, 1827
CLOSSIANA Reuss, 1920
Clossiana frigga (Thunberg, 1791)
Clossiana frigga (Thunberg, 1791)
• TYPE LOCALITY. Lapland.
• RANGE. Montane or lowland tudra and bogs of the Holarctic.
• DISTRIBUTION AND VARIATION. The Amur and Ussuri regions are inhabited by the ssp. maritima (Kardakov, 1928); over the Altais, the Sayan and Transbaikalia, the ssp. alpestris (Elwes, 1899) is distributed; from Tarbagatai Mts., the ssp. annae (Sushkin, 1906) has been described, yet its status requires confirmation. The remaining parts of the range over the territories concerned are populated by the nommotypical subspecies (= heluenacitis (Sedykh, 1977)). Specimens from the mountains of S. Siberia display great variability, especially in individual size and the degree of development of black markings.
• HABITATS AND BIOLOGY. Swampy thin forest, high bog and/or bush-clad tundra up to 2,000 m a.s.l. Flight period: June to August. Host plant (Henriksen & Kreutzer, 1982): Rubus chcimaemorus.
• SIMILAR SPECIES. Clossiana improba: much smaller; discal band of UNH with two dim whitish spots; marking of UPS vague, dull. C. thore: discal band of UNH without whitish dim spots.
Photo and text: Guide to the BUTTERFLIES OF RUSSIA and adjacent territories Volume 2. PENSOFT, Sofia - Moscow. 2000