Zakharova E.Yu., Shkurikhin A.O. 2017. [Wing morphological variation in Erebia ligea (Linnaeus, 1758) (Lepidoptera: Satyridae) bicyclic and univoltine populations in the Urals] // Euroasian Entomological Journal. Vol.16. No.4: 344–352 [in Russian, with English summary].
Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences, Vos’mogo Marta Ave. 202, Yekaterinburg 620144 Russia.
ABSTRACT. The influence of geographical and chronic isolation on the morphogenesis was studied in populations of bicyclic species Erebia ligea (Lepidoptera: Satyridae) in the Sverdlovsk region by morphometric methods. It has been shown that northern taiga E. ligea adults differ from southern individuals in forewing shape, size and eyespot diameters. Populations spaced at a relatively short distances (80–90 km) differ only by their metric trait complex, and not the forewing shape. In the case of two closely spaced (c. 10 km) populations, where E. ligea emerge strictly in odd or even numbered years, chronic isolation leads to the formation of two morphological forms, differing in the distance between the row of ocellated spots and forewing edge. When considering other nearby habitats where E. ligea emerge every year, differences in all studied morphological traits were not detected.
KEY WORDS: variation, geometric morphometrics, wing shape, wing pattern, biennialism, univoltinism, Erebia ligea, Urals.