Rhamphomyia (Pararhamphomyia) wrangeli 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; Chironomidae; Rhamphomyia; Rhamphomyia wrangeli; Sinclair; Wrangel Island; Bukhta; Arctic; Chukotka; Tundra
• Online Access: https://zenodo.org/record/4477236; https://doi.org/10.5281/zenodo.4477236

Rhamphomyia (Pararhamphomyia) wrangeli Shamshev & Sinclair sp. nov. (Figs 49–53) urn:lsid:zoobank.org:act: D1A835B2-FA2B-4104-B593-F6A43BDDFA89 Type material. HOLOTYPE ♂, labelled [RUSSIA. Chukotka AO (Wrangel Island)]: “[printed in Cyrillic, Russian] bukh. [=bukhta, bay] Somnitelnaya,/ south of o. [=ostrov, island] Wrangel/ Gorodkov 19.vii.[1]966”; “on flower/ Dryas integrifolia,/ spotted/ tundra”; “ Holotypus / Rhamphomyia / wrangeli / Shamshev, Sinclair sp. n. [red label]” (INS_DIP_0000617, ZIN). PARATYPES: RUSSIA: Chukotka AO (Wrangel Island): same data as holotype, (1 ♂, 7 ♀, ZIN; 1 ♂, 1 ♀, CULSP); environs of Somnitelnaya Bay, south of Wrangel Island, valley of river Somnitelnaya, Mineev Mtns, 150 m, pebbles, on flower of Dryas integrifolia, 19.vii.1966, KBG (1 ♂, 4 ♀, ZIN; 1 ♂, 1 ♀, CNC); same locality, on flower of Potentilla emarginata, 22.vii.1966, KBG (2 ♂, ZIN). Diagnosis. Small dark flies (wing length about 3.5 mm). Male holoptic; scutum almost uniformly brownish grey pruinescent, acr and dc biserial, usually 6 sctl; wing faintly brownish, anal vein incomplete, halter brown; hind tibia strongly curved inward on about basal third; abdominal segments 7 and 8 asymmetrical; terminalia small, slightly rotated to right, phallus mostly hidden. Female legs with simple setae. Description. Body length 3.2–3.5 (holotype 3.3); wing length 3.2–3.4 (holotype 3.2) mm. Male (Fig. 49). Head with dense greyish brown pruinescence on face, frons, postgena, ocellar triangle and occiput; dark setose. Holoptic; upper ommatidia enlarged. Frons represented by very small subtriangular space below ocellar tubercle and larger subtriangular space above antennae, bare. Face broad, bare. Ocellar triangle with several long fine setae. Occiput with numerous long setae, including postoculars; postgena with numerous hair-like setae. Antenna blackish brown; scape short, slightly longer than pedicel, both with short setulae; postpedicel conical, with slightly concave ventral margin on apical part, nearly 2.5X longer than wide; ...