Notes on winter flies Trichoceridae (Diptera) of Mongolia with description of new species Author Petrašiūnas, Andrius Author Podėnas, Sigitas text Zootaxa 2011 3031 61 68 journal article 46329 10.5281/zenodo.278712 8dd0f58c-d27a-4730-be6f-c7d9a0f77b44 1175-5326 278712 Trichocera (Metatrichocera) gigantea (Dahl, 1967) Metatrichocera gigantea Dahl, 1967 . Dahl, 1967b : 195 . Trichocera ( Metatrichocera ) gigantea (Dahl, 1967) . Dahl & Alexander, 1976 : 14 . Illustrated by Dahl, 1967b : figs. 15–19, 28–31. Material examined. MONGOLIA : 1 male , Hovsgol Aimag, Khankh Soum, Noyon river bank, N51.201528 E100.807278 , altitude 1709 m , 8–15 August , 2005, Malaise trap, coll. O. Yadamsuren and S. Enkhtaivan, habitat: narrow valley with boggy forb-sedge meadow ( Carex sp., Leymus chinensis , Potentillia sp.), vegetation coverage 70 percent, malaise trap at river edge. The species was known from Sweden (Dahl, 1967), Finland ( Dahl, 1968 ) and Arctic tundra of Russia ( Lantsov & Chernov, 1987 ). Occurrence of species in permafrost zone of Northern Mongolia was expected, despite disjunction with the rest of the distribution area.