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 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.

Molophilus Curtis, 1833 is the most species-rich Limoniidae genus with a total number of 1006 species and subspecies, from which 97 are recorded in the Western-Palaearctic region so far. However new species are still expected from less investigated regions, like the Balkans or the Eastern Europe. In the present article, we desrcibe a new limonid crane fly species, Molophilus balcanicus Kolcsár sp. n. from the Central Balkan area (Bulgaria). This new taxa is closely related to M. serpentiger Edwards, 1938 and M. variispinus Starý​, 1971 based on the external male genital structures, but differs from its siblings mostly in the structure of the inner and outer gonostylus. Additionally, a number of species are reported for the first time from various European countries, like M. variispinus Starý, 1971 and M. occultus de Meijere, 1918 from Romania; M. crassipygus de Meijere 1918, M. obsoletus Lackschewitz, 1940 and M. medius de Meijere, 1918 from Greece; M. flavus Goetghebuer, 1920 from Andorra; M. cinereifrons de Meijere, 1920 from Bulgaria and M. corniger Meijere, 1920 from Spain.

Fungus gnats (Sciaroidea) are a globally species rich group of lower Diptera. In Europe, Fennoscandian peninsula in particular holds a notable diversity, ca. 1000 species, of which 10 % are still unnamed. Fungus gnats are predominantly terrestrial insects, but some species dwell in wetland habitats. Eight new fungus gnat species, belonging to the families Keroplatidae (Orfelia boreoalpina Salmela sp.n.) and Mycetophilidae (Sciophila holopaineni Salmela sp.n., S. curvata Salmela sp.n., Boletina sasakawai Salmela & Kolcsár sp.n., B. norokorpii Salmela & Kolcsár sp.n., Phronia sompio Salmela sp.n., P. reducta Salmela sp.n., P. prolongata Salmela sp.n.), are described. Four of the species are known from Fennoscandia only whilst two are supposed to have boreo-alpine disjunct ranges, i.e. having populations in Fennoscandia and the Central European Alps. One of the species probably has a boreal range (Finnish Lapland and Central Siberia). Type material of Boletina curta Sasakawa & Kimura from Japan was found to consist of two species, and a further species close to these taxa is described from Finland. Phronia elegantula Hackman is redescribed and reported for the first time from Norway. DNA barcodes are provided for the first time for five species.

The cranefly (Tipuloidea) fauna of the Western Balkans is still poorly known. In this study, occurrence data of 77 species is reported, of which two species are newly recorded for Albania, eight species for Bosnia and Herzegovina, twelve for Croatia, and seven for Slovenia, respectively. A new species, Baeoura neretvaensis Kolcsár & d’Oliveira, sp. nov. is described from Bosnia and Herzegovina, Montenegro, and Slovenia. Images of the habitus, wing, and male and female terminalia of the new species are provided. Furthermore, images of male terminalia and wings of thirteen additional species are presented.