Eleven remarkable Diptera species, emerged from fallen aspens in Kivach Nature Reserve, Russian Karelia Author Polevoi, Alexei Author Ruokolainen, Anna Author Shorohova, Ekaterina text Biodiversity Data Journal 2018 6 22175 22175 http://dx.doi.org/10.3897/BDJ.6.e22175 journal article http://dx.doi.org/10.3897/BDJ.6.e22175 1314-2828--22175 Gnophomyia acheron Alexander, 1950 Materials Type status: Other material . Occurrence: recordedBy: A. Polevoi ; sex: 7 males , 2 females ; Location: country: Russia ; stateProvince: Karelia; locality: Kivach Nature Reserve ; verbatimLatitude: 62.281; verbatimLongitude: 33.967; verbatimCoordinateSystem: Decimal degrees; verbatimSRS: WGS84; Identification: identifiedBy: A. Polevoi ; Event: samplingProtocol: Trunk emergence trap ; eventDate: 2016-05-26 /06-2; Record Level: institutionCode: FRIP Diagnosis Medium sized dark species, distinguished from other Gnophomyia by the structure of male and female genitalia (Fig. 1; see also Hancock (2008) , fig. 6, 10). Distribution Palaearctic. Only recently discovered in Finland and Russian Karelia ( Polevoi and Salmela 2014 , Stary and Salmela 2004 ). Ecology Saproxylic species, associated with different deciduous trees ( Krivosheina 2008 ). In Finland and Karelia, so far collected exclusively on aspen ( Hancock 2008 , Halme et al. 2012 ). According to the authors' data, this species prefers huge wind-broken aspens with a diameter over 70 cm, fallen 7 years ago (Table 1). It favoured the trunks colonised by Lentaria afflata (RS=0.56, P<0.05) and Subulicystidium longisporum (RS=0.62, P<0.05), but seemed to avoid those decayed by Phellinus tremulae (RS=-0.56, P<0.05). Conservation Red-listed in Finland, category VU ( Penttinen et al. 2010 ).