40. Dolichopus socer Loew, 1871

Material examined. 1♂, [Kamchatka Terr.], Koryakia, Apuka environs, Apuka River mouth, lake shore on island, tundra, 7.08.1959, K. B. Gorodkov ; 1♂, [Kamchatka Terr.], Koryakia, Apuka environs, 6.07.1959, K. B. Gorodkov ; 2♂, Kamchatka, Kamenskoe, 31.07.1973, O. P. Negrobov ; 2♂, 1♀, Chukotka, Pevek env., 69 ° 42′ N, 170 ° 18′ E, 4.07.2021, wet grass-moss submontane apron, O. Khruleva ; 2♂, Khabarovsky Krai, Vysokogornyi, 13– 17.07.1974, A. Barkalov ; 18♂, Magadan Region, Khasyn River, 13.07.1975, A. Barkalov ; 5♂, 50 km N Magadan, Ola River bank, 15.08.1975, A. Barkalov ; 1♂, Magadan Region, 30 km NE Spornoe, 29.06.1981, V. S. Lebedev ; 1♂, Magadan Region, 15 km SSE Atka, 29.06.1981, V. S. Lebedev ; 4♂, Magadan Region, 18 km N Orotukhan, 10.07.1981, V. S. Lebedev .

Distribution. Type locality: Quickjock, Lapponiae Lulensis, Mounioniska, Peljatschware, Koutokeino, Finmarkiae, Syvajarvi infra alpem Stuor Oive [Sweden and Finland]. Palaearctic: Czechia, Finland, Norway, Russia (Altai Rep., Amur Region, Buryatia, Chukotka, Kamchatka, Karelia, Khabarovsk, Krasnoyarsk, Magadan, Murmansk, N Ural, Tomsk, Yamalia, Yakutia), Sweden. First record from Koryakia.