Empis septentrionalis Shamshev & Sinclair & Khruleva 2020, sp. nov.

• Main Authors: Shamshev, Igor V., Sinclair, Bradley J., Khruleva, Olga A.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2020
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Empididae; Empis; Empis septentrionalis; Sinclair; Wrangel Island; Arctic; Chukotka
• Online Access: https://zenodo.org/record/4477201; https://doi.org/10.5281/zenodo.4477201

Empis septentrionalis Shamshev & Sinclair sp. nov. (Figs 6, 7) urn:lsid:zoobank.org:act: 1E05618C-B300-4E56-B381-1A0865B7462E Type material. HOLOTYPE ♂, labelled: [RUSSIA. Chukotka AO (Wrangel Island)] “[printed in Cyrillic, Russian] Chukotskiy AO [= Autonomous Okrug] o. [= ostrov, island] Wrangel/ Verch. tech. [= verkhnee techenie, upper flow] river Neizvest-/ naya 71°13′N 179°19′W / O.A. Khruleva 8.7.2015 / 2B”; “ Holotypus / Empis / septentrionalis / Shamshev, Sinclair sp. nov. [red label]” (INS_DIP_0000612, ZIN). PARATYPES: RUSSIA. Chukotka AO (Wrangel Island): same locality as holotype, BT 7 A, 5.vii.2006, OAK (1 ♂, 1 ♀, CNC); same locality as holotype, BT 7 A, 10.vii.2015, OAK (1 ♂, ZIN); same locality as holotype, BT 7 B, 10.vii.2015, OAK (7 ♀, ZIN); same locality as holotype, BT C1, YPT, 4–15.vii.2015, OAK (1 ♂, ZIN); same locality as holotype, BT 1 A, 6–13.vii.2015, OAK (1 ♂, ZIN); Mineev Mtns, 71°00′N 179°31′W, BT 14 B, 14.vii.2006, OAK (1 ♂, ZIN); environs of Pervaya Mtn (71°10′N 179°27′W), BT A, hand collecting, 21.vii.2019, OAK (1 ♀, ZIN). Diagnosis. Mid-sized (wing length 5–5.5 mm) robust flies with brownish pruinescent thorax and abdomen and almost entirely dark brown legs. Male dichoptic; occiput slightly convex with numerous long, flattened setae laterally behind eye; thorax black setose, scutum with 4 vittae; legs with only hind tarsomeres 1–3 brownish yellow, hind femur somewhat thickened, hind tibia very slender; apical part of phallus uniformly tubular. Female with brownish infuscate wing; abdomen densely brown pruinescent on tergites dorsally. Description. Body length 5.2–5.9 (holotype 5.3); wing length 5–5.5 (holotype 5.1) mm. Male (Fig. 6). Head with dense brownish pruinescence on face, frons, postgena, ocellar triangle and occiput; entirely dark setose; clypeus shiny. Dichoptic; ommatidia equally small. Frons broad, below ocellar tubercle broader than distance between outer margins of posterior ocelli; with marginal setulae. Face broad, bare. Ocellar triangle with several long fine ...