О жизненном пути и научной деятельности Т. С. Теина

The article presents the biographical data and the main research results of Tasyan S. Tein, archaeologist, researcher of the Laboratory of History, Archeology, and Ethnography, NEISRI. He described the main stages in the development of the ancient Eskimo culture of Northern Chukotka, reconstructed the economy and culture, researched the social structure, religious beliefs, and rituals of Eskimos. Excavations on Wrangel Island made a significant contribution to the study of the Paleo-Eskimo period. T. S. Tein obtained representative and valuable materials from the most ancient settlement of sea mammal hunters. He researched the religion and shamanism of the Asiatic Eskimos, and completed detailed descriptions of the Eskimo seasonal festivals.

New records of long-legged flies (Diptera, Dolichopodidae) from Wrangel Island Nature Reserve (Chukotka AD, Russia)

New original data on five Dolichopodidae species from the Wrangel Island resulted from the 2015–2019 surveys in the Wrangel Island State Nature Reserve are presented. As a result of this study, a new material of Dolichopodidae has been identified, being collected from the new localities in the Wrangel Island Nature Reserve, and a new species Rhaphium tripartitum has been found on the Island. The present research excludes R. nigrum from the Chukchi fauna and expands the Dolichopus terminasianae area westward to the Yamal Peninsula.

The empidoid flies (Diptera: Empidoidea, exclusive of Dolichopodidae) of the Russian Arctic islands and Svalbard Archipelago

The empidoid flies of the Russian Arctic islands and Svalbard Archipelago are revised including families Empididae (4 genera, 32 species), Hybotidae (2 genera, 3 species) and Brachystomatidae (1 genus, 2 species). The following ten new species are described: Empididae—Empis septentrionalis Shamshev & Sinclair sp. nov. (Russia: Wrangel Island); Rhamphomyia (Dasyrhamphomyia) gorodkovi Shamshev, Sinclair & Saigusa sp. nov. (Russia: Chukotka mainland, Wrangel Island, Taymyr, Yakutia; USA: Alaska); R. (D.) mallochi Shamshev, Sinclair & Saigusa sp. nov. (Canada: Yukon; Russia: Chukotka mainland, Kolyuchin and Wrangel Islands; USA: Alaska); R. (Pararhamphomyia) subfilicauda Shamshev & Sinclair sp. nov. (Russia: Wrangel Island); R. (P.) submacrura Shamshev & Sinclair sp. nov. (Russia: Wrangel Island); R. (P.) subtenuiterfilata Shamshev & Sinclair sp. nov. (Russia: Wrangel Island, Yakutia); R. (P.) wrangeli Shamshev & Sinclair sp. nov. (Russia: Wrangel Island); R. sublongiseta Shamshev, Sinclair & Saigusa sp. nov. (Canada: Yukon; Russia: Wrangel Island); one species of Rhamphomyia was retained as unnamed due to insufficient material; Hybotidae—Platypalpus septentrionalis Shamshev & Sinclair sp. nov. (Russia: Wrangel Island), P. subtectifrons Shamshev & Sinclair sp. nov. (Canada: Northwest Territories, Yukon; Russia: Wrangel Island; USA: Alaska). For previously described species a short diagnosis and a habitus photo are provided to enable easier recognition. In addition, a key to the species of Rhamphomyia (Empididae) occurring on the Russia Arctic islands and Svalbard Archipelago is compiled. A lectotype is designated for Rhamphomyia armipes Sack, 1923. The male and the female of R. taimyrensis Frey and R. kaninensis Frey are described for the first time, respectively. Tachypeza sericeipalpis Frey is newly recorded from North America (Canada: Northwest Territories, Nunavut) and first illustration of the male terminalia is provided. Trichoclinocera lapponica (Ringdahl) is recorded for the first time from the territory of Russia.