species are known from the territory of European NorthEast. 124 species are included in the work of A.G. Tatarinov and M.M. Dolgin [2001], and two endemic taxa (Erebia zaitsevi Nikolaev, 2005, E. callias churkini Bogdanov, 2008) are described directly from the Polar Urals in recent years. Leptidea morsei (Fenton in Butler, 1881) should also be noted as a new species for the region, for the first time mentioned here for the Polar Urals based on expedition materials in 2017. Earlier in the NorthEast of Europe it was found only in plain south and middle taiga forests in several localities in Komi Republic (Syktyvkar, Ukhta) [Sedykh, 1974; Tatarinov, Dolgin, 1999, 2001]. In the Polar Urals it was met by O.V. Zurilina 12 km North of the village of Kharp in the valley of the Sob river (Yamalo-Nenetsky Autonomous Okrug), and also noted in the western foothills of the Subpolar Urals in the area of the Lemva river (Komi Republic) in July 2017. Despite the fairly good knowledge of the European NorthEast fauna and regular entomological expeditions in the region, the extreme Northern areas, located on the NorthEast of Europe are poorly studied. They are located mostly in the basin of Kara river, on the coast of the Kara sea, north of the Polar Urals foothills and differ by the development of the arctic tundra landscapes. Lack of entomologists knowledge of the territory can be explained due to its poor accessibility, lack of settlements and extreme climatic conditions. However, the first special studies of the butterflies of this region were also the first in the entire European NorthEast and belonged to N.Ya. Kuznetsov [1925], based on the materials of the Russian geographical society expeditions that described the presence of the Oriental and American zoogeographic elements in its fauna. Subsequent literature data on the butterflies based ABSTRACT. The data on the distribution in the Kara river basin of the extreme north eastern Europe (Russian Federation, Nenetsky Autonomous Okrug and Komi Republic) of 24 butterfly species is presented. The concrete localities of butterfly species are mentioned with the geographical coordinates, their biotopical confideness is described, the relative quantity of species is estimated. The species diversity and its possible change are analyzed. Leptidea morsei (Fenton in Butler, 1881) is stated for the whole territory of the Polar and Subpolar Urals for the first time. РЕЗЮМЕ. В статье представлены данные о распространении на крайнем северо-востоке Европы в бассейне реки Кары (Российская Федерация, Ненецкий автономный округ, Республика Коми) 24 видов булавоусых чешуекрылых. Приводятся указания на конкретные местонахождения видов c данными географических координат, описана их биотопическая приуроченность, оценено относительное обилие видов, проанализировано видовое разнообразие и возможные тенденции его изменения. Для Полярного и Приполярного Урала также впервые приводится Leptidea morsei (Fenton in Butler, 1881).
