Figs 8, 166– 174.
cornuta Loew, 1863: 26 (Cordylura). Type-locality: “English River” (Canada, Ontario).
fuscipennis Hendel, 1930: 8 (Orthochaeta). Type-locality: “Klutchi” (Russia, Kamchatka Kray).
Remarks. Besides Hendel’s (1930: 8, as fuscipennis) record from Kamchatka, this species was recorded for the Russian Far East by Ozerov & Krivosheina (2014 b: 215).
Material examined. Arkhangelsk Oblast: Nar'yan-Mar (67.631761 N, 52.985770 E), 7.VII. 2008, N.E. Vikhrev (2 ♂♂, ZMUM); Kamchatka Kray: Bay Vestnik (51.4823 N 157.5301 E), 27.VII. 1999, A. Leley, S. Storozhenko (1 ♀, ZMUM); Valley of Geysers (ca. 54.43 N 160.15 E), 12.VIII. 1985, V. Zlobin (2 ♂♂, 1 ♀, ZISP); Komi: Schel'yaboj (66.29 N 56.45 E), 14.VIII. 1978, Gorodkov (1 ♂, ZISP); Inta (66.0362 N 60.1628 E), 5.VIII. 1985, Gorodkov (1 ♂, ZISP); Krasnoyarsk Kray: Igarka (67.457 N 86.598 E), Enisey, 30.VI. 1967, Gorodkov (8 ♂♂, ZISP).
Diagnostic description. Body-length 5.0–7.0 mm. Head. Frons usually black in upper part and yellow in lower third or half. Postpedicel approximately 3 times as long as pedicel. Thorax black, grey dusted. Proepisternum with hairs in central part. Katepisternum with 3 strong setae, in ventral corner with yellow setae. Legs yellow, only tarsi darkened. Fore coxae with white hairs. Femora slender. Wing usually distinctly brownish. Abdomen black, greyish dusted. Male sternite 4 rectangular, 2 times as long as wide (Fig. 169). Male sternite 5 as in Fig. 166. Epandrium, cerci and surstyli as in Figs 167, 168.
Distribution. Russia (Fig. 170): Arkhangelsk Oblast and Komi (first record for Europe), Kamchatka Kray, Krasnoyarsk Kray, Primorskiy Kray.—North America.