Chaetocladius (Amblycladius) franzjosephiensis Krasheninnikov

• Main Authors: Krasheninnikov, Andrey B., Przhiboro, Andrey A.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2022
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Chironomidae; Chaetocladius; Chaetocladius franzjosephiensis; Franz Josef Land
• Online Access: https://doi.org/10.5281/zenodo.6899707; http://treatment.plazi.org/id/141487C4FFBB6A52C3F3FF23FEAD7F48

Chaetocladius ( Amblycladius ) franzjosephiensis Krasheninnikov Chaetocladius ( Amblycladius ) franzjosephiensis Krasheninnikov, 2013 in Krasheninnikov, Gavrilo, 2013: 158–159. Material examined. Holotype: adult male, Russia, Franz Josef Land Archipelago, Alger Island, Cape Podgornyy, 80°22’54.66”N 55°46’12.79”E, 10 m, sea terrace in 200 m from seashore, slowly flowing puddle in boggy moss carpet under slope with scree and snowfields, 17.VIII.2012, M. V. Gavrilo leg. (ZIN). Redescription of holotype (Figs 8, 12, 16) Adult male. Total length 3.8 mm. Wing length 1.74 mm. Ratio of total length to wing length 2.18. Head, thorax, abdomen and legs brown. Head. Head width 441 µm. Eye bare, reniform. Temporal setae including 9 inner and 5 outer verticals and 1 postorbital. Clypeus with 8 setae. Antenna with partly reduced plume; AR 0.82. Total length of flagellomeres (13) 833 μm; flagellomere 13 length 350 μm. Longest seta of flagellomere 13 ca. 230 μm; ratio of flagellomere 13 length to its longest seta length 1.54. Apex of flagellomere 13 with 2 setae 39, 37 (45, 37) μm in length. Flagellomeres 2 and 3 each with 1 sensillum chaeticum in apical part, flagellomere 13 with 11–13 sensilla chaetica and 4 sensilla coeloconica (all in apical part). Maxillary palp: total length ca. 375 μm; length of palpomeres (in μm): ca. 40: ca. 50: 100: 73: ca. 110. Palpomere 3 with 5–7 sensilla capitata. Ratio of head width to maxillary palp length ca. 1.18. Thorax. Lateral antepronotals 12; dorsocentrals 21–25; acrostichals 24, beginning close to antepronotum; prealars 10, supraalar 1. Scutellum with 18 setae. Wing. R with 14, R 1 with 6, R 4+5 with 5 setae. Costa extending to apex of R 4+5 for 40 μm. R 4+5 ending distal to end of M 3+4. Cu 1 slightly sinuate in apical part. Anal lobe well-developed. Squama with 14 setae. Legs. Fore tibia with spur 65–70 μm long; mid tibia with two spurs 30 μm and 22 μm long; hind tibia with two spurs ca. 56 μm and ca. 36 μm long. Hind tibial comb consisting of 14 setae. Pulvilli reduced, empodium ...