Fungus gnats (Diptera: Bolitophilidae, Diadocidiidae, Keroplatidae and Mycetophilidae) new to Finland

Abstract

Thirty-seven species of fungus gnats new to Finland are reported. Eleven of these are reported in Fennoscandia for the first time: Diadocidia fissa Zaitzev, Macrocera estonica Landrock, M. nigricoxa Winnertz, M. pusilla Meigen, Boletina pallidula Edwards, Mycetophila morata Zaitzev, M. ostentanea Zaitzev, Trichonta nigritula Edwards, T. subterminalis Zaitzev & Menzel, Neoempheria winnertzi Edwards and Neuratelia sintenisi Lackschewitz. The records are based on original material collected in large-scale trapping projects in Southern and Eastern Finland mainly in old-growth forests during 1997–1998. Detailed information on Finnish findings, and data on the general distribution of the species are given. Several species are known with only one (typematerial) or a few previous records ranging from Norway to Sakhalin. For two poorly-known species, Neuratelia sintenisi Lackschewitz and Rymosia pinnata Ostroverkhova, new figures of male genitalia are presented.

Recent noteworthy findings of fungus gnats from Finland and northwestern Russia (Diptera: Ditomyiidae, Keroplatidae, Bolitophilidae and Mycetophilidae)

“…Fennoscandian records are from the northernmost parts of Norway (Søli and Rindal 2012), Sweden (Kjaerandsen et al 2007) and Murmansk region (Väisänen 1984), from a total of four localities. Only one previous Finnish record from Kainuu, mid boreal vegetation zone (Polevoi et al 2006). …”

“…Finnish collecting sites are an old-growth boreal forest (Kainuu, Polevoi et al 2006) and a headwater stream with rich riparian vegetation, surrounded by a nearly pristine coniferous forest (Joutenoja). Immature stages are unknown.…”

“…During the past decade dozens of new species have been reported from Finland (e.g. Polevoi et al 2006), including descriptions of new taxa (Polevoi and Hedmark 2004, Jakovlev and Penttinen 2007, Jakovlev and Polevoi 2008, Polevoi and Jakovlev 2011). The 2010 Finnish Red List assessment of fungus gnats was based on a regional species pool consisting of 734 species (Penttinen et al 2010).…”

“…Polevoi and Hedmark 2004, Humala and Polevoi 2008, Polevoi and Jakovlev 2011). Species occurring in Murmansk region have not been listed, but no less than 330 fungus gnats were found from a single nature reserve close to the Finnish and Norwegian border (Polevoi 2010). …”

Checklist of the fungus gnats of Finland: Bolitophilidae, Diadocidiidae, Ditomyiidae, Keroplatidae and Mycetophilidae (Diptera)

“…During the recent two decades, large-scale inventories (e.g. Polevoi and Jakovlev 2004, Polevoi et al 2006, Jakovlev et al 2006, 2014, Jakovlev and Penttinen 2007) have increased the total number of Finnish fungus gnats with ca. 300 species.…”