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New Records of Fungus Gnats for Norway (Diptera, Mycetophilidae)

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New Records of Fungus Gnats for Norway (Diptera, Mycetophilidae) © Norwegian Journal of Entomology. 15 December 2009 New records of fungus gnats for Norway (Diptera, Mycetophilidae) GEIR SØLI, EIRIK RINDAL & LARS OVE HANSEN Søli, G., Rindal, E. & Hansen, L. O. 2009. New records of fungus gnats for Norway (Diptera: Mycetophilidae). Norw. J. Entomol. 56, 69–73. Fifteen species of Mycetophilidae are reported new to Norway, and their distribution and biology are commented on. Among the new species, Neuratelia subulata Zaitzev, 1994 has previously not been recorded from the Nordic region. The total number of species of Mycetophilidae in Norway is thus increased to 589. Key words: Diptera, Mycetophilidae, Norway, new records. Geir Søli, Eirik Rindal and Lars Ove Hansen, Natural History museum, University of Oslo, PO Box 1172 Blindern, NO-0316 Oslo, Norway. E-mail: [email protected], [email protected], [email protected] Introduction Our knowledge about Norwegian Mycetophilidae is rapidly increasing (see Søli & Kjærandsen 2008). Fungus gnats in the family Mycetophilidae form Since the compilation of the first Norwegian check an extremely common and species rich group of list which comprised 473 species (Gammelmo Diptera in northern temperate regions, and our & Søli 2006), as many as 101 more species knowledge about their taxonomy has increased have already been added (Kjærandsen & Jordal considerably during the last two decades (for a 2007, Søli & Kjærandsen 2008). By the present review, see Kjærandsen et al. 2007). Members contribution, our fauna comprises 589 species. of the family expose a rather diverse biology, but Though, compared to the number of species in our know, the majority of species are associated with neighbouring countries, one may assert that a high fungi in one or another way. A number of species number of species will be discovered in the years develop in sporophores, while others feed on to come. In Sweden, which is supposed to have a mycelium in decaying or rotting organic matter, much similar fauna of Mycetophilidae to that in above all in dead wood. Økland (1994, 1996) Norway, the number of species has just exceeded demonstrated that species of fungus gnats may 800! (Kjærandsen, pers. com). be vulnerable to modern forestry practices, and as such good indicators of undisturbed forests. We find it noteworthy that eight of the species This is one reason why the family was assessed here reported as new to Norway, were found in in the last two editions of the Norwegian Red List dry, sandy areas. These species were sampled as (Direktoratet for naturforvaltning 1999, Kålås part of a project designed to study various families et al. 2006). In the most recent edition, as many of Hymenoptera and Diptera normally found in as 108 species of Mycetophilidae were included such habitats. As fungus gnats are most frequent (Gammelmo et al. 2006). An updated and revised in humid areas, dry areas are seemingly less well edition is prepared in these days, and we thus investigated by those studying fungus gnats. find it advantageous to publish records of new Hence, there is a possibility that there exists a Norwegian species. much ignored assemblage of species living in dry 69 Søli et al.: New records of fungus gnats for Norway and sandy surroundings, or more precisely, species World distribution: Palearctic; in Europe associated to fungi preferring such habitats. recorded from Germany, Czech Republic, Poland, Belaruss, Estonia, Latvia, Faroe Island, Sweden, The new species Finland, North and Northwest Russia. Also recorded from the East Palaearctic. The genera are listed alphabetically. Where Biology: The larvae have been reported to develop nothing else is stated, data on distribution is in a various agaricales, but also in Polyporaceae taken from Fauna Europaea (Chandler 2004). (Zaitzev 2003). The indicated Nordic distribution patterns, follow the system of concepts developed for Sweden by Brevicornu arcticoides Caspers, 1985 Kjærandsen et al. (2007). The material is kept in Material: NORWAY, EIS 27, BØ: Kongsberg, the collection of the Natural History Museum, Skollenborg, Labro (32V NM 3822 0911; 120 University of Oslo, Norway (NHMO). masl), 2 August–28 September 2008, 1♂, Leg. L. O. Hansen (Malaise trap, pine forest - sand-pit). Anatella dampfi Landrock, 1924 Nordic distribution: Boreal. In Sweden recorded Material: NORWAY, EIS 27, BØ: Kongsberg, from Lule Lappmark (Kjærandsen et al. 2007). Skollenborg (32V NM 3822 0911), 2 August–28 World distribution: Palearctic, recorded September 2008, 1♂, Leg. L. O. Hansen (Malaise from Great Britain, France, Switzerland, The trap. Sandy area); EIS 36, AK: Oslo, Maridalen, Netherlands, Germany, North and Northwest Dausjøen (32V NN 997 541), 19 July–26 August Russia. 2002, 1♂, Leg. K. M. Olsen & S. Reiso (Malaise Biology: Unknown. trap, near river outlet). Nordic distribution: A boreal species. In Sweden Brevicornu fissicauda (Lundström, 1911) recorded from Lule Lappmark only (Kjærandsen Material: NORWAY, EIS 28, AK: Oslo, Østensjø, et al. 2007). Ljanselva, Skullerud, (32V PM 0314 3745), 17 World distribution: Holarctic; in Palearctic June 2009, 1♂, Leg. G. Søli. recorded from Great Britain, Germany, Czech Nordic distribution: Nemoral – boreonemoral. Republic, Slovakia, Switzerland, Italy, Sweden, In Sweden recorded from Skåne and Öland North Russia, and Estonia. In Sweden only (Kjærandsen et al. 2007). recorded from Lule Lappmark (Kjærandsen et al. World distribution: Holarctic; widely distributed 2007). in Europe. Also recorded from East Palaearctic. Biology: As for the great majority of species in Biology: Unknown. this genus, the biology is unknown. Exechia spinigera Winnertz, 1863 Brachypeza (Paracordyla) obscura Winnertz, Material: NORWAY, EIS 28, BØ: Nedre Eiker, 1863 Mjøndalen, Ryggkollen [W] (32W NM 5903 Material: NORWAY, EIS 27, BØ: Kongsberg, 2453), 3 August–28 September 2008, 1♂, Leg. L. Skollenborg (32V NM 3822 0911;), 2 August–28 O. Hansen (Malaise trap. Sand pit in pine forest). September 2008, 1♂, Leg. L. O. Hansen (Malaise Nordic distribution: A boreal species. In Sweden trap); EIS 37, AK: Ullensaker, Sessvollmoen W, recorded from Lule Lappmark only (Kjærandsen (32V PM 1780 8054, 208 masl), 11–26 June 2007, et al. 2007). 1♂, Leg. L. O. Hansen (Malaise trap. Sandy pine World distribution: Palearctic, in Europe forest). recorded with certainty from Sweden, Finland Nordic distribution: Boreal-boreonemoral. and North Russia only. Records from e.g. The In Sweden recorded from Västergötland and Netherlands, and Poland, probably refer to E. Lule Lappmark (Kjærandsen et al. 2007). It is a spinuligera Lundström, Also recorded from East conspicuous species, resembling a large Cordyla, Palaearctic. and unlikely to be overlooked in any sample. Remarks: A difficult name with questionable 70 Norw. J. Entomol. 56, 69–73 identity as the original type material is lost (see distribution. Kjærandsen et al. 2007) . Biology: Larvae observed on dead wood with mycelium (Zaitzev 1982 in Kurina 1997). Greenomyia mongolica Laštovka & Matile, 1974 Mycetophila britannica Laštovka & Kidd, Material: NORWAY, EIS 28, AK: Oslo, Bleikøya 1975 [N] (32V NM 9750 4035), 29 August–1 November Material: NORWAY, EIS 37, AK: Ullensaker, 2008, 1♂, Leg. A. Endrestøl (Malaise trap. Forest Sessvollmoen, Aurtjernet W (32W PM 1684 edge ). 7912, 200 masl), 30 August–1 October 2008, 1♂, Nordic distribution: A boreonemoral species. Leg. L. O. Hansen (Malaise trap. Sandy area). In Sweden known from the Stockholm area Nordic distribution: Nemoral. Not recorded (Kjærandsen et al. 2007). from Sweden. World distribution: Palaearctic; in Europe World distribution: Palearctic; in Europe with known from Russia C (Moscow Prov.), Estonia a southern and western distribution, recorded and Sweden. from Denmark, Germany, The Netherlands, Great Remarks: This rare species has according to Britain, Ireland, France, Portugal, Spain, Italy, Kurina (1997) a distribution of the Balto- Eurasian Greece, Crete, and Cyprus. Also recorded from distribution, connected to the spruce and fir forests the Near East. of the South Taiga. The records from Sweden and Biology: Larvae polyphage, reared from Norway, however, point to an even more western Armillaria mellea, Hebeloma crustuliniforme, Figure 1. The striking fungus gnat Greenomyia mongolica Lastovka & Matile, 1974 was found in Oslo in 2008. The species has previously only been recorded from Sweden, Estonia and near Moscow in Russia. (Photo: Karsten Sund, Natural History Museum, Oslo) 71 Søli et al.: New records of fungus gnats for Norway Russula nigricans and Melanopus squamosus. Finland, North and Central Russia. In England recorded from all months except Biology: Unknown. February and March (Laštovka & Kidd 1974) Mycomya (Mycomya) bisulca Lackschewitz, Mycetophila distigma Meigen, 1830 1937 Material: NORWAY, EIS 28, AK: Oslo, Material: NORWAY, EIS 37, AK: Ullensaker, Hengsenga (32V NM 9341 4318), 8 August–7 Sessvollmoen W (32V PM 1780 8054, 208 September 2007, 2♂♂, Leg. A. Endrestöl masl), 11–26 June 2007, 3♂♂, Leg. L. O. Hansen (Malaise trap); Søndre Nordstrand, Ljanselva, (Malaise trap. Sandy pine forest). Liadalen (32V PM 0051 3589), 12 May–13 June Nordic distribution: Boreal. In Sweden recorded 2009, 1♂, Leg. G. Søli & E. Rindal (Malasie trap); from Lule Lappmark only (Kjærandsen et al. Nordstrand, Ljanselva, ”Urskogen” (32V PM 2007). 0179 3679), 1 August–11 September 2009, 1♂, World distribution: Palaearctic; in Europe only Leg. G. Søli & E. Rindal (Malaise trap). recorded from Sweden, Finland, Estonia and Nordic distribution: Boreal.
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