Rhamphomyia (Dasyrhamphomyia) hovgaardii Holmgren

Rhamphomyia (Dasyrhamphomyia) hovgaardii Holmgren

(Fig. 12)

Rhamphomyia hovgaardii Holmgren, 1880: 21. Type locality (by lectotype designation): Novaya Zemlya Islands, Arkhangelskaya Province, Russia.

Other references: Holmgren & Aurivillius, 1883: 162; Melander, 1928: 195 (catalogue); Gorodkov & Kovalev, 1969: 629 (key).

Rhamphomyia zaitzevi Becker, 1915: 54. Type-locality (by lectotype designation): upper reaches of the Kara River (about 68°39′N 65°52′E), Yamalo-Nenets, Russia.

Other references: Sinclair et al., 2019: 17 (synonym, lectotype designation).

Rhamphomyia (Dasyrhamphomyia) hovgaardi: Frey, 1922: 66 (key); Frey, 1955b: 516 (revision).

Rhamphomyia (Rhamphomyia) hovgaardi: Chvála & Wagner, 1989: 285 (catalogue); Shamshev, 2001b: 334 (key); Yang et al., 2007: 183 (catalogue).

Rhamphomyia (Rhamphomyia) hovgaardii: Shamshev, 2016: 76 (checklist).

Rhamphomyia (Dasyrhamphomyia) hovgaardii: Shamshev & Sinclair, 2018: 310 (revision, lectotype designated); Sinclair et al., 2019: 17 (redescription).

Rhamphomyia (Rhamphomyia) zaitzevi: Shamshev, 2001b: 334 (key).

Rhamphomyia zaitsevi. Incorrect subsequent spelling of zaitzevi Becker, 1915 (Chvála & Wagner, 1989: 292; Yang et al., 2007: 191; Shamshev, 2016: 84).

Material examined. RUSSIA. Krasnoyarskiy Terr. (Dikson Island): small island “Konus”, 31.vii.1948, Korotkevich (1 ♂, ZIN); marsh in lowland between hills, 30.vii.1948, Korotkevich (1 ♀, ZIN). Chukotka AO (Wrangel Island) : middle flow of Neozhidannaya River, 71°01′N 179°09′E, BT 4, YPT, 12–16.vii.2016, LFV (1 ♀, ZIN); environs of Tundrovaya Mtn, tundra nesting-place of gooses, 18.vii.1972, KBG (1 ♀, ZIN); middle flow of Mamontovaya River, N Perkatkun, waterlogged coast, 17.vii.1972, KBG (2 ♂, 3 ♀, ZIN); same locality, small swamp, 29.vii.1972, KBG (1 ♂, 3 ♀, ZIN); same locality, 71°10′N 179°45′W, BT 20, 12.vii.2006, OAK (3 ♀, ZIN); same locality and biotope, Sw, 1.vii.2015, OAK (2 ♂, 3 ♀, ZIN); upper flow of Neizvestnaya River, 71°13′N 179°19′W, BT 12, PT, 24.vi.–6.vii.2015, OAK (1 ♀, ZIN).

Recognition. Large, blackish brown species (wing length 6.3–7 mm). Male (Fig. 12) eyes holoptic; thorax black setose, scutum densely brownish pruinescent, without distinct vittae; almost all mesonotal setae fine, hair-like (npl usually slightly stronger), long, presutural dc 3–5-serial, acr 2–3-serial; legs robust, entirely dark brown, hind femur entirely setose, hind tibia slender; wing brownish infuscate, halter brown; cerci directed anteriorly, short, prolonged nearly to middle of tergite 5, epandrium brownish. Female wing slightly darker and broader; mid femur with pennate posteroventral setae, hind femur with pennate anterodorsal and posteroventral setae, hind tibia with pennate setae dorsally and ventrally (on about middle).

Distribution. Holmgren (1880) described R. hovgaardii from Novaya Zemlya, however, later he noted also Vaygach Island (Holmgren & Aurivillius 1883; see Shamshev & Sinclair 2018). Holarctic species; in Eurasia, R. hovgaardii extends across arctic and subarctic Russia, including both continental areas (Taymyr, Yakutia, Chukotka) and islands (Novaya Zemlya, Vaygach, Wrangel). In North America, this species ranges in the low arctic from the western edge of Hudson Bay to Alaska (Sinclair et al. 2019).

Habitat. On Wrangel Island, this species was collected mainly in wet habitats.