(Fig. 3)
Hemerodromia nivalis Zetterstedt, 1838: 545. Type locality: Lapland, (?) Sweden.
Other references: Sinclair, 2008: 174 (revision, redescription); Shamshev, 2016: 19 (checklist).
Material examined. RUSSIA. Archangelskaya Prov. (Novaya Zemlya Archipelago): Southern coast near Cape Cherny, 21, 29.vii.1911, Rusakov (1 ♂, 2 ♀, ZIN); Eastern coast, Karskie vorota—Matochkin Shar, viii–ix, Rusakov (1 ♂, 1 ♀, ZIN); Matochkin Shar, brook Nochuev, 22.v.1925 (1 ♀, ZIN), Vakulenko; Matochkin Shar, 10.vii.1925, Vakulenko (1 ♀, ZIN). Chukotka AO (Wrangel Island) : SW mountain Sovetskaya, upper flow of Khrustalnaya River, under snowfield on detritus, 3.viii.1971, KBG (1 ♀, ZIN); Mineev Mtns, 5 km N Somnitelnaya, slope, swamp spring, 26.vii.1971, KBG (1 ♂, 1 ♀, ZIN); lower flow of Khischniki River, foothills of Mineev Mtns, swamp tundra, 11.vii.1972, KBG (1 ♂, ZIN); Rogers Bay, small swamp, on surface of water, 20.vii.1971, KBG (2 ♂, 1 ♀, ZIN).
Recognition. This species of Clinocera is readily distinguished by the presence of an auxiliary crossvein between R 2+3 and R 4, lower half of face with silvery pruinescence and a dark ring around the anterior spiracle (Fig. 3).
Distribution. A Holarctic species distributed across the subarctic and arctic areas of Eurasia and North America (Sinclair 2008). In Russia, C. nivalis is known from Murmanskaya Province, Novaya Zemlya, north of Yakutia, Chukotka and Wrangel Island.
Habitat. On Wrangel Island, this species was collected in various wet habitats.
Genus Trichoclinocera Collin