Fig. 6 D–F
Pogonomyia firthiana Huckett, 1965 a: 298.
Material examined. RUSSIA: Altai Republic, Kosh-Agachskii raion: 40 males and 6 females, 10–18 km SE Dzhazator, 1700–2115 m, 49 ° 39 'N 87 ° 39 'E, 5.vii. 2006, V. Sorokina; 6 males, upper part of Zhumaly River, Rodonovyi spring, 2300 m, 49.46 ºN 88.05 ºE, on flawers of Potentilla sp., 24.vi.2005, 4.vii. 2005, V. Sorokina, 2400 m, 23,24. vii. 2007, V. Sorokina & T. Novgorodova, 2412 m, 5.vii. 2008, A. Barkalov; 33 males and 3 females, Ukok plateau, environs of Muzdy-Bulak lake, 2400–2900 m, 49.28 ºN 87.65 ºЕ, 27,28. vi. 2005, 1,2.vii.2005, 12.vii. 2008, V. Sorokina & A. Barkalov; 91 males and 13 females, Ukok plateau, 8 km NE Maitobe Mt., 2420– 2800 m, 49 ° 34 'N 87 ° 43 'E, 6,8,10. vii. 2006, V. Sorokina & T. Novgorodova (10 males and 2 females in OUMNH, 7 males and 2 females in BMNH); 69 males and 9 females, Ukok plateau, valley of Ak-Allacha River, 2160 m, 49 ° 25 'N 87 ° 37 'E, 12–14.vii. 2006, V. Sorokina & T. Novgorodova (3 males in BMNH, 4 males and 1 female in OUMNH); 60 males and 2 females, Ukok plateau, environs of Kal’dzhin-Kul’-Bas lake, 2400–2450 m, 49 ° 19 'N 87 ° 26 'E, 17,20,21. vii. 2006, V. Sorokina & T. Novgorodova (6 males and 1 female in OUMNH, 4 males and 1 female in BMNH); 12 males, south slope of Yuzhno-Chuyskii range, valley of Tara River, 2175–2200 м, 49 ° 39 'N 88 ° 13 'E, 1–4.vii. 2006, 11,13. vii. 2009, V. Sorokina & T. Novgorodova (1 male in OUMNH), 2800–3000 m, 49.65 ºN 88.22 ºE, 19.vii. 2009, A. Barkalov; 1 male, valley of Akbul River, 2075 m, 49 º 39 'N 88 º 1 'Е, 12.vii. 2009, T. Novgorodova; 2 males, upper part of Naryn-Gol River, 2520 m, 49 º 49 'N 88 º 13 'Е, 16–19.vii. 2009, V. Sorokina; 24 males and 4 females, south slope of Kurayskii range, 5.5–7 km NW Kuray village, 2111–2588 m, 50 º 17 'N 87 º 51 'E, 17,19. vii. 2013, V. Sorokina; 9 males and 13 females, 1 km NW Kuray village, 1576 m, 50 º 15 'N 87 º 53 'E, 20.vii. 2013, V. Sorokina; 6 males and 1 female, north slope of Severo-Chuyskii range, valley of Akturu River, 1865–2064 m, 50 º08'N 87 º 48 'E, 21.vii. 2013, V. Sorokina; 2 males, upper part of Akturu River, 50.09 ºN 87.78 ºЕ, 2110 m, 3.vii. 2006, A. Barkalov & V. Zinchenko; Altai Republic, Shebalinskii raion: 1 male, environs of Topuchaya, 972 m, 51.1 ºN 85.6 ºЕ, 10.vii. 2006, A. Barkalov; 1 male, Diektiek village, Gorduba River, 957 m, 51.28 ºN 85.61 ºЕ, 27.vi. 2009, V. Sorokina; Altai Republic, Ulaganskii raion: 11 males, environs of Dzhulukul’ lake, 2200 m, 50.47 ºN 89.77 ºЕ, 21.vii. 2007, V. Sorokina; 1 male, Shapshalskii range, 2878 m, 50.53 ºN 89.8 ºE, 24.vii. 2007, V. Sorokina; 2 males, Kurayskii range, 2119 m, 50.19 °N 87.42 °Е, 4.vii. 2008, A. Barkalov; Altai Republic, Ongudayskii raion: 3 males, Terektinskiy range, upper part of B. Yaloman River, 955 m, 50.47 ºN 86.32 ºE, 2–4.viii. 2007, A. Barkalov; Altai Republic, Ust’-Koksinskii raion: 9 males, environs of Mul’ta, 915–962 m, 50 º09'N 86 º00'E, 11.vii. 2013, V. Sorokina; 8 males, 6.5 km SE Mul’ta, 1026–1153 m, 50 º07'N 86 º00'E, 15.vii. 2013, V. Sorokina; 2 males and 1 female, Nizhne-Mul’tinskoe lake, 1633 m, 50 º01'N 85 º 49 'E, 13.vii. 2013, V. S o r o k i n a. Khakasiya: Tashtypskii raion, 4 males, Imek River, 474 m, 52.9 ºN 89.9 ºE, 29.vi. 2004, A. Barkalov, 2 males, ~ 9 km NNW Tashtyp village, Kyzyl-Bash strim, valley of Tashtyp River, 451–474 m, 52.9 ºN 89.9 ºE, 29.vi. 2004, A. Barkalov; Shirinskii raion, 3 males and 3 females, environs of Shira-Itkul’ lake, 54.45 ºN 90.18 ºE, tophill Betuletum, 25–28.vi. 2011, K. Tomkovich (ZMUM). Tyva Republic: Morgun-Taiginskii kozhuun: 36 males and 1 female, environs of Mugur-Aksy, 2000–2100 m, ~ 50 º 22 'N 90 º 25 'E, 22.vii. 1993, A. Barkalov, 3 males, Shapshalskii mountain range, upper part of Shui River, 2550–2900 m, 25.vii. 2007, V. Sorokina, 1 male, east bank of Khindiktig-Khol’ lake, 2334 m, 50.4 ºN 89.9 ºE, 28.vii. 2007, A. Barkalov; Tes-Khemskii kozhuun, 3 males, 15 km ENE Oo-Shynaa, ~ 50 º 34 'N 94 º 21 'E, 17.vii. 1993, A. Barkalov.
Remarks. A full description of both sexes is given by Huckett (1965 a: 300). Adults of this species are found on flowering plants.
Distribution. Previously known only from the type-series from the Yukon Territory (Canada).