The empidoid flies (Diptera: Empidoidea, exclusive of Dolichopodidae) of the Russian Arctic islands and Svalbard Archipelago Author Shamshev, Igor V. Author Sinclair, Bradley J. 0000-0001-6413-1606 bradley.sinclair@canada.ca Author Khruleva, Olga A. 0000-0001-6602-0053 oa-khruleva@mail.ru text Zootaxa 2020 2020-09-07 4848 1 1 75 journal article 8607 10.11646/zootaxa.4848.1.1 47bc051d-f837-48ea-b9da-83558ea1af75 1175-5326 4406987 04C94342-9951-4452-9296-AACBD8956113 Rhamphomyia ( Pararhamphomyia ) septentrionalis Sinclair, Vajda, Saigusa & Shamshev ( Figs 39, 40 ) Rhamphomyia ( Pararhamphomyia ) septentrionalis Sinclair et al ., 2019: 65 . Type locality: Victoria Is. ( 71°17′N , 114°W ), Northwest Territories , Canada . Other references: Shamshev, 2016: 70 (checklist, partly as Rhamphomyia ( Pararhamphomyia ) tenuiterfilata Becker, 1900 ). Material examined. RUSSIA . Chukotka AO ( Wrangel Island ): middle flow of Mamontovaya River, N Perkatkun , osier-bed in river valley, 17, 21.vii.1972 , KBG ( 17 ♂ , 13 ♀ , ZIN ) ; same locality, 71°10′N 179°45′W , BT 14 , 9.vii.2006 , OAK ( 4 ex. , SZM ); same locality and biotope, Sw , 2.vii.2015 , OAK ( 2 ♂ , 5 ♀ , ZIN ); same locality, BT 3 , 9.vii.2006 , OAK ( 1 ex. , SZM ); same locality and biotope, Sw , 1.vii.2015 , OAK ( 1 ♂ , ZIN ); same locality, BT 20 A, Sw , 2.vii.2015 , OAK ( 2 ♂ , ZIN ); spurs of Pervaya Mtn , 71°09′N , 179°27′W , BT 11 , Sw , 28.vi.2015 , OAK ( 6 ♂ , ZIN ); upper flow of Neizvestnaya River , 71°13′N , 179°19′W , BT 4 A, 5.vii.2006 , OAK ( 1 ex. , SZM ); same locality and biotope, Sw , 22.vi.2015 , OAK ( 3 ♂ , ZIN ); same locality and biotope, 26.vi.2015 , OAK ( 1 ♂ , ZIN ) . Recognition. Mid-sized (wing length 5.4–6.1) blackish slender flies. Male ( Fig. 39 ) holoptic; scutum faintly greyish pruinescent, with 4 narrow shiny vittae; presutural dc pale 1–2-serial, hair-like, moderately long, acr biserial, similar to but somewhat shorter than dc, laterotergite with pale setae; legs long, very slender, shiny, with strongly reduced setation; hind tibia gently curved inwards beyond middle, hind basitarsus long spindle-shaped, with dense long hair-like setae dorsally; wing faintly infuscate, CuA+CuP almost complete, well sclerotized, disappearing or evanescent just before wing margin, halter yellow; abdomen with shiny dorsum, covered with pale setae; terminalia longer than thorax; epandrium elongate, almost strap-like, somewhat broadly constricted on about middle, with broadly rounded apex; cercus long, but shorter than epandrium, narrow, constricted on about middle; phallus very long, hair-like, without loops, extended beyond epandrium. Female ( Fig. 40 ) wing broad, brownish; hind tibia and tarsus simple; legs without pennate setae. Distribution. Holarctic; R . septentrionalis occurs in the low arctic west of Hudson Bay of North America and in northern regions of Russia ( Sinclair et al . 2019 ). Habitat. On Wrangel Island this species was collected in the central part of the island, where it was found mainly in river valleys with willow bushes.