Chironomus trabicola Shobanov, Wulker & Kiknadze 2002

• Main Author: Saether, Ole A.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2004
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Chironomidae; Chironomus; Chironomus trabicola; Black Head; New Siberian Islands; Seta; Arctic
• Online Access: https://zenodo.org/record/6271172; https://doi.org/10.5281/zenodo.6271172

Chironomus trabicola Shobanov, Wülker & Kiknadze, 2002: 177 (Figs. 3, 4, 10) Chironomus niveipennis F. sensu Lundström (1915: 6), not Fabricius, 1805: 42. Material examined. RUSSIA: New Siberian Islands, west coast, 1 ď, 1 Ψ, 12 vi 1903 [16 (3) vi 17 (4) vii 1903 in Lundström], M. I. Brussnew; Chara­Ullach Mts., 1 Ψ, 28 vi 1902 [5 viii (22 vii) 1902 in Lundström], M. I. Brussnew. MALE IMAGO The male has been described by Shobanov et al. (2002). Their description can be supplemented with: Head. Clypeus with about 110 setae. Frontal tubercle (Fig. 4) conspicuous, 56 m long, 17 m wide, with some conspicuously long microtrichia with distinct bases; frons with dense microtrichia forming a fur­like covering. Thorax. Dorsocentrals about 70, prealars 17. Scutellum with about 130 setae. Wing. Brachiolum with 5 setae, R with 28 setae, R 1 with 1 seta, other veins bare. Squama with about 40 setae. FEMALE IMAGO (n = 1–2) Total length 8.22–8.69 mm. Wing length 4.73–5.10 mm. Total length/wing length 1.70–1.74. Wing length/length of profemur 3.13. Thorax, abdomen brown, legs brownish black. Head. AR 0.57. Flagellomere lengths (in m): 191, 128, 135, 128, 330; and 229, 139, 150, 116, lost. Dorsal interocular distance 191–263 m, ventral interocular distance 308– 341 m. Frontal tubercle (Fig. 3) 38–56 m high, 17–19 m wide, with conspicuous microtrichia as in male. Frons with long and dense microtrichia. Temporal setae 44–47, consisting of 15 inner verticals, 18–22 outer verticals and 10–11 postorbitals. Clypeus with 60–63 setae. Tentorium 244–266 m long, 60–71 m wide; stipes 244–278 m long, 79– 124 m wide. Palpomere lengths (in m): 79 –86, 94– 101, 296–300, 263 – 330, 394 – 428. Third palpomere with 6 lanceolate, 30 m long sensilla clavata. Thorax. Antepronotal setae apparently absent. Acrostichals not countable, dorsocentrals 71–74, prealars 12–15, supraalars 2. Scutellum with about 100–120 setae. Wing. VR 1.04. Brachiolum with 4 setae, R with 25–33, R 1 with 6–9, R 4 + 5 with about 30 setae, other veins bare. Squama with ...