Figs 157–165.
tibiella Zetterstedt, 1838: 731 (Cordylura). Type-locality: “Juckasjervi Lapponiae Tornensis, ad Lycksele Lappon. Umensis, ut et ad Bjŏrkvik Nordlandiae... Dowre... Uplandia ad Nacka prope Stockholmiam... Smoland...” (Sweden, Norway).
nigripes Zetterstedt, 1846: 2026 (Cordylura). Type-locality: “Smolandia... Jemtlandia boreali ad diversorium Skalstugan... Lapponia Lulensi” (Sweden).
nigrifrontata Becker, 1894: 120 (Amaurosoma). Type-locality: “Süd-Tirol vom Lusier Pass” [now Passo di Lusia (Italy, Trentino)].
nutans Becker, 1894 (Amaurosoma). Type-locality: Legnica (formerly Liegnitz), Poland.
kamtschatkense Hendel, 1930: 9 (Amaurosoma). Type-locality: “Klutchi” (Russia, Kamchatka Kray)— syn. nov.
Remarks. Noted by Gorodkov (1970: 449, as Amaurosoma nigripes (Zetterstedt); 1986: 17) for European part of Russia without indicating specific locality.
The study of the photo made from the lectotype of Amaurosoma kamtschatkense Hendel, 1930 (lectotype was designated by Ozerov, 2007: 7, deposited in Naturhistoriska riksmuseet, Stockholm, Sweden) demonstrated that this specimen belongs to the species Nanna tibiella (Zetterstedt, 1838), not katmaiensis Malloch.
Material examined. Chukotka: Shmidt (68.8935 N 179.4177 W), 18.VII. 1963, K. Gorodkov (1 ♂, ZISP); Kamchatka Kray: Sivuchiy Island (56.3605 N 162.708 E), 26.VI. 1908, A. Derzhavin (1 ♂, ZISP); Krasnoyarsk Kray: Ust'-Tareya (73.2527 N 90.5962 E), 4.VIII. 1967, K. Gorodkov (1 ♀, ZISP); Leningrad Oblast and St.
-Petersburg: Agalatovo (60.2198 N 30.2817 E), 12.V. 1963, A. Stackelberg (1 ♂, ZISP); Gatshina (ca. 59.56 N 30.13 E), 26.V.1951, 25.V.1952, 9.V. 1954, A. Stackelberg (1 ♂, 2 ♀♀, ZISP); Jukki (ca. 60.11 N 30.29 E), 18.V.1933, 27.V. 1956, A. Stackelberg (1 ♂, 1 ♀, ZISP); Kartashevskaya (ca. 59.40 N 30.07 E), 8.VII. 1952, A. Stackelberg (5 ♂♂, 2 ♀♀, ZISP); Luga (ca. 58.73 N 29.84 E), 1.V.1936, 2.V.1937, 11.V. 1954, A. Stackelberg (2 ♂♂, 1 ♀, ZISP); Pesochnaya (60.1175 N 30.1518 E), 30.V. 1966, K. Gorodkov (4 ♂♂, 6 ♀♀, ZISP); Roshino (60.25 N 29.61 E), 20.V. 1954, A. Stackelberg (2 ♂♂, ZISP); Sertolovo (60.1498 N 30.2 E), 13.V. 1962, A. Stackelberg (1 ♂, ZISP); Bol'shoi Berezovyi Island (60.3 N 28.62 E), 23 and 31.V. 1981, Kandybina (2 ♀♀, ZISP); Yaschera (58.8945 N 29.8206 E), 26.V. 1957, A. Stackelberg (1 ♂, ZISP); cemetery Smolenskoe (59.94 N 30.24 E), 19.V. 1922, A. Stackelberg (1 ♂, ZISP); Komarovo (60.18 N 29.81 E), 13.V. 1951, A. Stackelberg (1 ♀, ZISP); Udel'naya (ca. 60.01 N 30.29 E), 13.V.1952, 24.V. 1954, A. Stackelberg (2 ♂♂, 1 ♀, ZISP); Moscow and Moscow Oblast: Petrovsko-Razumovskoe (55.8399 N 37.5694 E), 6.V. 1931, N. Violovich (2 ♂♂, 3 ♀♀, ZMUM); Andreevskoe (55.9674 N 35.6094 E), 6.V.2009, 15.V. 2007, A.L. Ozerov (4 ♂♂, 2 ♀♀, ZMUM); Burtsevo (55.9783 N 35.5905 E, 55.9815 N 35.5972 E), 5.V.2007, 1.V.2010, 8.V. 2011, A.L. Ozerov (4 ♂♂, ZMUM); Golitsyno (55.6496 N 37.0117 E), 6.V.1979, 29.V. 1982, A. Shatalkin (1 ♂, 2 ♀♀, ZMUM); Dmitrov env. (56.3163 N 37.7258 E), 29.IV., 7–10.V.2007, 30.IV.2008, 20.V.2009, 29.IV.2010, 7.V. 2010, N. Vikhrev (18 ♂♂, 4 ♀♀, ZMUM); same locality, 7.V. 2010, D. Gavryushin (5 ♂♂, ZMUM); Ozhigovo (55.4353 N 36.8827 E), 10.V. 2009, D. Gavryushin (1 ♀, ZMUM); Yakshino (55.9198 N 35.5833 E), 2.V. 2008, A.L. Ozerov (1 ♂, ZMUM); Sakhalin Oblast: Kunashir I., Mendeleevo (43.9621 N 145.685 E), 9.VI. 1968, V. Richter (2 ♂♂, ZISP); Kunashir I., Lake Lagunnoe (44.0629 N 145.7589 E), 18.VI. 1968, Nartshuk (1 ♀, ZISP); Kunashir I., State Nature Reserve Kurilskiy, Cordon Andreevskyi (45.54 N 145.37 E), 8.VII. 2014, T.V. Galinskaya (5 ♀♀, ZMUM); Novoaleksandrovsk (47.0564 N 142.7303 E), 23.V. 1973, Kerzhner (1 ♂, ZISP); Tumen' Oblast: (63.818 N 59.562 E), 6–8.VII. 2010, K. Tomkovich (1 ♂, 1 ♀, ZMUM).
Diagnostic description. Body-length 3.5 –5.0 mm. Head. Frons usually black in upper half and yellow in lower third or quarter. 3 orbital setae present. Antenna black. Postpedicel with acutely angled upper apical corner, approximately 2–3 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 setae, the setae black in female, black or pale in male. Legs. All coxae and femora black; sometimes hind tibia darkened on apical half; tarsi blackish. Fore femur usually with 6–10 anteroventral setae (Fig. 157). Hind tibia with apical posteroventral seta, which usually is shorter than anteroventral apical seta. Wing tinged with brownish. Abdomen black, greyish dusted. Male sternite 4 rectangular, slightly longer than wide (Fig. 161). Male sternite 5 with black lobes, as in Fig. 158. Epandrium, cerci and surstyli as in Figs 159, 160. Female sternite 8 as two small separate sclerites.
Distribution. Russia (Fig. 162): Chukotka, Kamchatka Kray, Krasnoyarsk Kray, Leningrad Oblast and St.- Petersburg, Magadan Oblast, Moscow and Moscow Oblast, Sakhalin Oblast, Tumen' Oblast.—Europe.