A review of the European species of the genus Tetragoneura Winnertz (Diptera: Mycetophilidae) ALEXEI POLEVOI (Russia) & JEVGENI JAKOVLEV (Finland)

Abstract

Five European species of the genus Tetragoneura Winnertz (Diptera: Mycetophilidae) are reviewed. Male terminalia of all species as well as female terminalia of T. ambigua Grzegorzek, T. sylvatica Curtis and T. ruuhijarvi sp. n. are illustrated on the base of type and newly collected material. Two species: T. ruuhijarvi sp. n. and T. pudogensis sp. n. are described based on specimens collected in Finland and Russian Karelia. T. sibirica Maximova is found to be a junior synonym of T. obirata Plassmann. Key to European species is provided.

Modelling of VUV/XUV spectra from the JET Tokamak

“…Those to level 3, in particular, which result in optically allowed transitions, remain significant throughout the energy range of the α-particles (≤3.52MeV). To judge the likely effect of such cross sections in burning plasma experiments, simulated α-particle velocity distributions for ITER discharges [11] have been used to derive Cross section (atomic units)…”

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

“…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).…”

“…However, dozens of species have been since either recorded or described from Russian Karelia (e.g. 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).…”