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LEPIDOPTERA

Clossiana distincta (Gibson, 1920)
Clossiana distincta (Gibson, 1920)

• TYPE LOCALITY. «Harrington Creek, Yukon Territory, Canada; lat 65°05'».

• RANGE. Locally from the Polar Urals and Transbaikalia to Chukotka and the coasts of the Sea of Okhotsk; N. America.

• DISTRIBUTION AND VARIATION. From the Polar Urals, Korshunov, 1987 has been described; from Transbaikalia, the ssp. dubatolovi Korshunov, 1987; NE. Yakutia and Chukotka are populated by the ssp. tschukotkensis (Wyatt. 1961) (= suntara Dubatolov, 1997); from central Yakutia, the ssp. ershovi Korshunov et Gorbunov, 1995 has been described (TL: Yakutsk), which is distinguishable by the brighter UPS and the more contrasting UNS.

• HABITATS AND BIOLOGY. Rocky slopes with pebble and/or mountain tundra up to 1,500 m a.s.l. Flight period: June to July. Host plant in Russia (Korshunov & Gorbunov, 1995): Saxifraga spinulosa; in N. America (Wyatt, 1957): Salix spp.

• SIMILAR SPECIES. Clossiana tritonia: larger; ground colour of UPS brighter; discal band of UNH monotonous, without silvery spots. C. erda, C. alberta: FW rounded, not sharpened apically; black marking not so strongly developed. C. matueeui: male genitalia different.

 

Photo and text: Guide to the BUTTERFLIES OF RUSSIA and adjacent territories Volume 2. PENSOFT, Sofia - Moscow. 2000