Parachironomus aquiloni

• Main Author: Orel, Oksana V.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Chironomidae; Parachironomus; Parachironomus aquiloni; Amderma; Arkhangelsk; nenets
• Online Access: https://zenodo.org/record/6041550; https://doi.org/10.5281/zenodo.6041550

Parachironomus aquiloni s sp. n. (Figs 1–4, 11–16) Parachironomus ? hazelriggi Spies, 2000 sensu Krasheninnikov et al. (2015: 416) —misidentification. Type material. Holotype: male, Arkhangelsk region, Avtonomniy Nenets district, Ugra Peninsula, Pay-Khoy ridge, beach lagoon Amderma, N 69°45’05,6”, E 61°34’00,2”, 0 m above sea level, 25.vii.2013, leg. A. Krasheninnikov. Etymology. The species is named for the northern region of Russia in which the material was collected. The epithet is the genitive singular form of the Latin noun aquilo, a North wind, i.e. a noun in apposition for the purposes of nomenclature. Diagnostic characters. The adult male of P. aquiloni s sp. n. is distinguished by the following combination of features: frontal tubercles absent; wing length 2.30 mm; AR 2.63; LR P1 1.31; wing without cell setae; tergite IX without longitudinal anal tergite band, anal point without dorsal setae on base, longer than superior volsella, in lateral view wide with base much higher proximally than distally and distal dorsal contour distinctly angled towards ventral, bare part of anal point occupying about half of total point length; SVo with apical subacute to acute lamellar lobe usually as wide as apex of volsella; IVo with shallow distal lobe at least to posterior; gonostylus curved to medial in proximal half, in lateral view up to 58 µm high near mid-length. Adult male (n=1). See also Table 5. Coloration. Scape brown; ground color of thorax pale yellow, mesonotal stripes and postnotum brown; abdomen brown; legs brown except for lighter proximal parts of f and ta1. Head. Frontal tubercles absent. Temporal setae 25. Clypeus with 19 setae. Antenna 1218 µm long. AR 2.63. Maxillary palpomeres 2–4 combined 608 µm long, their individual lengths (in µm): 56; 152; 184; 216. Antenna length/palp length 2.0. Thorax. Antepronotals 10, acrostichals 25, dorsocentrals 23–25, prealars 8–10, supraalar 1. Scutellum with 24 setae. Wing. Length 2.3 mm. VR 1.11. R with 23–26, R1 with 15–16, R4+5 with 30–35 setae in distal 2/3, ...