Nanna armillata ( Zetterstedt, 1846 )

Ozerov, A. L. & Krivosheina, M. G., 2015, A review of the genera Cleigastra Macquart, Gonarcticus Becker, Gonatherus Rondani, Hexamitocera Becker, Nanna Strobl, Orthacheta Becker and Spathephilus Becker (Diptera, Scathophagidae) of Russia, Zootaxa 4012 (2), pp. 201-258 : 221

Nanna armillata ( Zetterstedt, 1846)

Figs 68–73 .

armillata Zetterstedt, 1846: 2069 (Cordylura) . Type-locality: “Scania ad Lund & Abusa; ex Hafnia Daniae” ( Sweden, Denmark).

mensurata Becker, 1894: 119 ( Amaurosoma ). Type-locality: “Schlesien, vom Wälfelsfall bei Glatz” ( Poland, near Bystrzyca Kłodzka SW).

Remarks. Noted by Gorodkov (1970: 449; 1986: 17) for European part of Russia without indicating specific locality.

Material examined. Komi: Mt. Sablya (ca. 64.7771N 58.8919E), 4.VII.1990, Malozemov (1 ♂, ZISP); Kursk Oblast: Streletskaya Steppe (51.5795N 36.0870E), 5–15.V.2008, K. Tomkovich (2 ♂♂, 2 ♀♀, ZMUM); Leningrad Oblast and St.-Petersburg: Jukki (ca. 60.11N 30.29E), 27.V.1956, A. Stackelberg (2 ♂♂, 1 ♀, ZISP); Udel'naya (ca. 60.01N 30.29E), 20.V.1954, 24.V. 1956, 22.V.1958, 12.V.1959, A. Stackelberg (17 ♂♂, 11 ♀♀, ZISP); Moscow and Moscow Oblast: Zelenograd (55.9860N 37.2023E), 15.V.1999, A. Gusakov (1 ♀, ZMUM); Andreevskoe (55.9674N 35.6094E), 6.V.2009, A.L. Ozerov (1 ♂, 1 ♀, ZMUM); Golitsyno (55.6496N 37.0117E), 8 and 20.V.1978, A. Shatalkin (2 ♂, 2 ♀♀, ZMUM); Dmitrov env. (56.3163N 37.7258E), 9.V., 13.V.2007, 7.V.2010, D. Gavryushin, N. Vikhrev (3 ♂♂, 2 ♀♀, ZMUM); Burtsevo (55.9817N 35.5982E, 55.9815N 35.5972E), 18.V.2006, 3.V.2008, A.L. Ozerov (1 ♂, 1 ♀, ZMUM); Burtsevo (55.9377N 37.3886E), 13.V.2010, A.L. Ozerov (1 ♂, ZMUM); Elektrogorsk env. (ca 55.9124N 38.8411E), 15.V.2010, A.L. Ozerov (1 ♀, ZMUM).

Diagnostic description. Body-length 4.0– 5.2 mm. Head. Frons black in upper part and reddish-yellow in lower quarter. 3 orbital setae present. Antenna black. Postpedicel with acutely angled upper apical corner, approximately 2.5–3 times as long as wide, in male wider than in female. Thorax black, extensively grey dusted. Proepisternum with hairs in central part. Katepisternum with 3 strong black setae. Coxae darkened. Femora black, but fore and hind ones yellow apically, and mid femur yellow apically and basally. Tibiae yellow, tarsi slightly darkened. Fore femur with 3–5 anteroventral setae ( Fig. 68 ). Hind tibia without apical posteroventral seta. Wing tinged with brownish. Abdomen black, greyish dusted. Male sternite 4 rectangular, approximately 1.5 times as long as wide ( Fig. 72 ). Male sternite 5 with black lobes, as in Fig. 69 . Epandrium, cerci and surstyli as in Figs 70, 71 . Female sternite 8 as two small separate sclerites.

Distribution. Russia ( Fig. 73 ): Komi, Kursk Oblast, Leningrad Oblast and St.-Petersburg, Moscow and Moscow Oblast.—Europe.

Figures

FIGURES 68 – 73. Nanna armillata (Zetterstedt): 68 — fore femur, anterior view; 69 — male sternite 5; 70 — epandrium, cerci and surstyli, lateral view; 71 — same, dorsal view; 72 — male sternite 4; 73 — distribution map.