Neozavrelia paramushirica Orel 2021, sp. nov.

• Main Author: Orel, Oksana V.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Chironomidae; Neozavrelia; Neozavrelia paramushirica; Big River; Sakhalin
• Online Access: https://zenodo.org/record/4582317; https://doi.org/10.5281/zenodo.4582317

Neozavrelia paramushirica sp. nov. (Figs 88–91, 93–99) zoobank.org:act: AF2BDD58-A744-4C01-806A-5D36F6098204 Type material. Holotype: male, RUSSIA, SAKHALIN REGION, Kuril Islands, Paramushir Island, Big River, 3.viii.1996, leg. P. Oberg. Paratypes: 24 males, same data, 3.viii.1996, leg. P. Oberg. Derivatio nominis. From the type locality Paramushir Island. Diagnosis. Darkly coloured species, with wing 1.72–1.80 mm long and AR 0.56–0.61; ultimate flagellomere 288–312 μm, swollen apically. Length of 2–4 flagellomeres of maxillary palpomeres 416–464 μm; 2 nd palpomere parallel-sided. R with 14–18, R 1 with 2–4, R 4+5 with 3–7, M 1+2 with 20–32, M 3+4 with 1–6, Cu 1 and An without setae. LR PI 1.41–1.52. Basitarsus of mid leg without sensilla chaetica. Mid tibia with2 spurs. Anterior margin of tergite IX triangular with well developed lateral lobes. Anal point is broad. Superior volsella elongated-oval, expanded medially, bearing 2–3 strong apical and 5–7 fine dorsal setae, microtrichia present or absent. Stem straight and parallelsided, 34–41 μm long. Description. Adult male (n=3). Total length 2.0 mm; wing length 1.72–1.80 mm. Total length/wing length 1.11–1.16. Colouration. Ground colour of thorax, scutellum, maxillary palpomeres and abdomen yellowish brown; halters yellowish; antenna, scutal stripes, median band on distal half of mesonotum and postnotum, legs brown. Head (Figs. 88, 93–84). Frontal tubercles absent or reduced in the form of small spots 3 μm in diameter, situated on swellings of frontal lobes. Temporal setae 8–12. Clypeus with 13–17 setae. Antenna with 10 flagellomeres, 792–832 μm long; ultimate flagellomere 288–312 μm, swollen apically. AR 0.56–0.61. Maxillary palpomeres 2–4 combined 416–464 μm long, their individual lengths (in μm): 40–56: 92–104: 108–120: 160–184. Antenna length/ palp length 1.79–1.96. Thorax. Acrostichals 13–16, dorsocentrals 5–10, prealars 1–2. Scutellum with 6–12 setae. Wing width 0.55–0.61 mm (Fig. 95). VR 1.29–1.34. R with 14–18, R 1 with 2–4, R 4+5 with 3–7, M 1+2 with ...