Tetragoneura obirata Plassmann 1990

• Main Authors: Polevoi, Alexei, Jakovlev, Jevgeni
• Format: Other/Unknown Material
• Language: unknown
• Published: 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Mycetophilidae; Tetragoneura; Tetragoneura obirata; Seta; Kon; Muonio; Pallastunturi; Kuussaari; karelia*
• Online Access: https://zenodo.org/record/6187676; https://doi.org/10.5281/zenodo.6187676

3. Tetragoneura obirata Plassmann, 1990 (Fig. 2: C, D) Tetragoneura obirata Plassmann, 1990: 62 = Tetragoneura sibirica Maximova, 2001: 140 syn. n. Holotype: SWEDEN: 3, Norrbyn, 11.9–20.9 1986, (ZSM, K.Müller leg.). Specimen, initially kept in alcohol, was sent to us by P.Chandler as a slide preparation. Parts of the body and genitalia are mounted in DMHF (Dimethyl Hydantoin-Formaldehyde Resin) separately on one slide. Other material examined. FINLAND: 1 3, Lkw: Muonio, Ounas–Pallastunturi NP, (METLA, J. Jakovlev leg.) 15.8 – 15.9.2006; 1 3, Ok: Kuhmo, Riihisuo, 12.9.– 07.10.1997 (FRIP, Kuussaari leg.); 3 3, Kb: Ilomantsi, Kotavaara, 08.9.– 29.9.1998 (METLA,Tietäväinen leg); 1 3, Kb: Ilomantsi, Tapionaho, 18.8.– 22.8.1994, (FRIP, Polevoi leg). RUSSIA, KARELIA: 2 3, Kon: Kivach, 06.9.– 20.10.1990 (FRIP, Polevoi leg); 4 3, Kon: Kivach, 0 2.9. 2002 (Polevoi leg); 1 3, Kb: Tolvojärvi, 07.9.– 13.09.1999 (FRIP, Tietäväinen leg.). Description. Male (n= 5). Head dark-brown to black, grey dusted, covered with pale hairs and setae. Lateral ocellus separated from eye margin by distance of 3.4–4.5 times its own diameter. Palpus yellowish-brown. Clypeus dark-brown to black clothed with short hairs. Antenna brown, pedicel yellow to brown, base of first flagellomere yellow to yellowishbrown. Fifth flagellomere 1.2–1.4 times as long as wide. Pedicel with long seta apically. Eyes densely covered with minute hairs. Thorax. Scutum and scutellum shining dark-brown to black. Scutum clothed with evenly distributed pale hairs and longer bristles. Pleurae dark-brown, thinly grey dusted. Antepronotum and proepisternum with pale hairs and bristles, the rest of the pleurae bare. Wing length 2.91–3.19 [mean value 3.09] mm. Wing hyaline, faintly infuscated in distal 1 / 3. Veins yellow, costa and radius brownish. C extending slightly beyond the middle of distance between R 5 and M 1. Sc short, ending free. R 4 developed, forming elongated small cell (about 5–7 times longer than wide). R 1 2.8–4.1 times as long as ta. Stem of M-fork about ...