All available records of two nematoceran flies Pachyneura fasciata and P. oculata were gathered and mapped. P. fasciata is a wide-ranging Palaearctic species, and is here reported for the first time for some regions of the Russian Federation, including the European part of Russia (Leningrad Oblast), Western Siberia (Tomsk Oblast, Altay Republic), Eastern Siberia (Krasnoyarsk Krai, Irkutsk Oblast, Chita Oblast), the Far East of Russia (Kuril islands, Kunashir and Paramushir Islands), and for continental China. Pachyneura oculata has a restricted eastern Palaearctic range. The lectotype of P. fasciata has been designated and a key for the identification of Pachyneura species is provided.

Limoniidae is one of the most species-rich Dipteran families, with 661 reported species in Europe. Despite the fact that the European limoniid crane fly fauna has been studied ever since Carolus Linnaeus, it is still poorly known. In this study, we summarise the taxonomic and faunistic studies of European Limoniidae, which described new species and reported first country records, between 2010 and 2020. We also report occurrence data of 244 Limoniidae species which represent the first country records or conformational records from various European countries, as we report ten species from Albania, one from Austria, thirty-seven from Belarus, five from Belgium, two from Bulgaria, two from Estonia, six from Finland, seven from France, fourteen from Greece, sixteen from Hungary, two from Iceland, six from Italy, ten from Latvia, one from Malta, nine from Montenegro, two from The Netherlands, ten from North Macedonia, forty-two from Norway, one from Poland, five from Portugal, twenty from Romania, thirty-eight from Serbia, six from Slovenia, five from Spain and seven species from Sweden for the first time. From the European territory of Russia, we report twenty-eight species from Central European Russia, seventy-two from East European Russia, fifteen from North European Russia, one from Northwest European Russia and seven from North Caucasus for the first time. Confirmatory records and corrigenda are also included.

The genus Boletina is a species rich group of fungus gnats. Members of the genus are mainly known from temperate, boreal and arctic biomes. Phylogeny of the genus is still poorly resolved, dozens of species are insufficiently described and undescribed species are often discovered, especially from samples taken from the boreal zone. Four new species are described. Boletina valteri Salmela sp.n. (Finland), Boletina kullervoi Salmela sp.n. (Finland), B. hyperborea Salmela sp.n. (Finland, Norway, Sweden, Canada) and B. nuortti Salmela sp.n. (Finland). Boletina arctica Holmgren is redescribed and reported for the first time from the Canadian high arctic zone. Boletina borealis Zetterstedt and B. birulai Lundström are reported for the first time from Canada. Boletina subnitidula Sasakawa (syn. n.) is proposed as a junior synonym of B. pallidula Edwards.

The superfamily Tipuloidea contains the following cranefly families: Cylindrotomidae, Limoniidae, Pediciidae and Tipulidae, with 1267 species known in Europe. Recent studies have increased our knowledge regarding these families substantially, but craneflies still represent an understudied group, even in Europe. A previous paper focused on European Limoniidae, summarizing the faunistic and taxonomic papers concerning the family between 2010 and 2020, and reported additional new country records. In this study, the focus is on the other three cranefly families: Cylindrotomidae, Pediciidae and Tipulidae, summarizing taxonomic and faunistic studies concerning these families in Europe between 2010 and 2022. Also presented are 204 occurrence records belonging to one Cylindrotomidae, 23 Pediciidae and 62 Tipulidae species, which represent first country records from various European countries: three from Albania, three from Belarus, one from Belgium, three from Bosnia and Herzegovina, 13 from Bulgaria, two from Cyprus, two from Denmark, three from Estonia, one from Finland, two from Greece, three from Italy, one from Montenegro, one from North Macedonia, six from Norway, six from Poland, four from Portugal, seven from Serbia, four from Slovenia, two from Spain and one from Sweden, and three from the European territory of Russia. In addition of species known already from Russia, six are presented as new from Central European Russia, 26 from East European Russia, six from North Caucasus and six from North European Russia.

The genus Neoplatyura Malloch is globally represented by 50 species, of which four are European species. In this article a new European Neoplatyura from Finland is described. The new species, Neoplatyura noorae Salmela, sp. n. is a dark brown species with tibial bristles arranged in rows. The new species is here reported from seven localities in Finnish Lapland. Based on available data, the new species occurs in mires, especially in calcareous rich fens.

New faunistic data on fungus gnats (Diptera: Sciaroidea excluding Sciaridae) from Finland and NW Russia (Karelia and Murmansk Region) are presented. A total of 64 and 34 species are reported for the first time form Finland and Russian Karelia, respectively. Nine of the species are also new for the European fauna: Mycomya shewelli Väisänen, 1984, M. thula Väisänen, 1984, Acnemia trifida Zaitzev, 1982, Coelosia gracilis Johannsen, 1912, Orfelia krivosheinae Zaitzev, 1994, Mycetophila biformis Maximova, 2002, M. monstera Maximova, 2002, M. uschaica Subbotina & Maximova, 2011 and Trichonta palustris Maximova, 2002.