Jørn R. Gustad

• MacGowan, Iain & Gustad, Jørn R. (2022). An annotated checklist of the Norwegian Lonchaeidae (Diptera, Cyclorrhapha) with the description of a new species. Norwegian Journal of Entomology. ISSN 1501-8415. 69(2), s. 284–303. Fulltekst i vitenarkiv Vis sammendrag

  The status of Lonchaeidae in Norway is reviewed and a Norwegian checklist is provided for the first time listing 40 species in six genera. Whenever possible the records for each species provide details of region code, municipality, locality (grid code after the EIS-system, decimal degrees) number of individuals, sex, date, collecting method, collector and depository. Information is also provided on wider European distribution, and where known, larval habitat. A new species within the genus Lonchaea Fallén, 1820 namely Lonchaea norvegica sp. n. is described and its relationship with related species is discussed. The Norwegian fauna is compared to that of other adjacent European countries. Keywords: Diptera, Lonchaeidae, Lonchaea norvegica, new species, checklist, Norway.

• Hellqvist, Sven; Gustad, Jørn R.; Kvifte, Gunnar Mikalsen & Hagenlund, Linn Katrine (2022). New data on Leiomyza Macquart, 1835 (Diptera, Asteiidae) in Norway and Sweden, including the first records of L. scatophagina (Fallén, 1823) from Norway and of L. birkheadi Gibbs, 2007 from Sweden. Norwegian Journal of Entomology. ISSN 1501-8415. 69(2), s. 232–236. Fulltekst i vitenarkiv Vis sammendrag

  The known distributions in Norway and Sweden for all Scandinavian species of Leiomyza Macquart, 1935 are updated. The first national records are reported for Leiomyza scatophagina (Fallén, 1823) from Norway (Innlandet and Møre og Romsdal) and for Leiomyza birkheadi Gibbs, 2007 from Sweden (Öland and Östergötland). After revision of museum specimens, L. laevigata (Meigen, 1830) is now known only from Skåne in Sweden. Keywords: Diptera, Asteiidae, Leiomyza scatophagina, Leiolmyza birkheadi, first record, Norway, Sweden, distribution

• Gustad, Jørn R. & Aarvik, Leif (2021). The first confirmed discovery in Norway of the elm leaf-mining moth Phyllonorycter schreberella (Fabricius, 1781) (Lepidoptera, Gracillariidae). Norwegian Journal of Entomology. ISSN 1501-8415. 68(2), s. 262–272. Fulltekst i vitenarkiv Vis sammendrag

  A male specimen of Phyllonorycter schreberella (Fabricius, 1781) (Lepidoptera: Gracillariidae) was found in western Norway in Vestland at Lærdal: Husum in June 2021. The circumstances of the record, the species' biology, geographical range, identification and status are outlined. Photos of the moth and the locality are given. Keywords: Lepidoptera, Gracillariidae, Phyllonorycter schreberella, Ulmus glabra, Norway, first record, biology, distribution, identification

• Gustad, Jørn R. & Aarvik, Leif (2021). First discovery in Norway of the elm-feeding moth Cydia leguminana (Lienig & Zeller, 1846) (Lepidoptera, Tortricidae). Norwegian Journal of Entomology. ISSN 1501-8415. 68(1), s. 168–173. Fulltekst i vitenarkiv
• Gustad, Jørn R. & MacGowan, Iain (2020). Earomyia lonchaeoides (Zetterstedt, 1848) (Diptera, Lonchaeidae) a species and genus new to the Norwegian fauna. Norwegian Journal of Entomology. ISSN 1501-8415. 67(2), s. 132–135. Fulltekst i vitenarkiv Vis sammendrag

  The lance fly Earomyia lonchaeoides (Zetterstedt, 1848) is reported from Norway representing the first time that not only this species but also this genus has been recorded from the country. E. lonchaeoides is recorded from Viken and Vestfold og Telemark. Comments on biology, distribution, habitat, and identification characters are provided.

• Gustad, Jørn R. (2020). The first record of the plant bug Orthotylus (Orthotylus) flavinervis (Kirschbaum, 1856) (Hemiptera, Miridae) from Norway. Norwegian Journal of Entomology. ISSN 1501-8415. 67(1), s. 15–18. Fulltekst i vitenarkiv Vis sammendrag

  The plant bug Orthotylus (Orthotylus) flavinervis (Kirschbaum, 1856) is reported from Norway for the first time. A reproducing pair (in copula) was found in Hvaler municipality in Viken county in June 2018. Comments on biology, habitat, identification characters, distribution and red list status of the genus Orthotylus Fieber, 1858 in the Nordic countries, are given. Keywords: Orthotylus (Orthotylus) flavinervis, Miridae, Heteroptera, Hemiptera, Viken, Norway

• Gustad, Jørn R.; Græsdal, Arve G. & MacGowan, Iain (2020). The first records of the pictured-winged fly Homalocephala bimaculata (Wahlberg, 1838) (Diptera, Ulidiidae) from Norway. Norwegian Journal of Entomology. ISSN 1501-8415. 67(1), s. 74–80. Fulltekst i vitenarkiv Vis sammendrag

  The picture-winged fly Homalocephala bimaculata (Wahlberg, 1838) is reported from Norway for the first time bringing to five the number of species of Homalocephala Zetterstedt, 1838 reported from the country. H. bimaculata is recorded from Hvaler, Viken, and Oslo, Oslo, and, based on numerous and scattered records, the species is considered to be under-recorded due to its secretive lifestyle. The species is regarded as native and, based on the many ovipositioning females observed, reproducing successfully. Comments on biology, distribution, habitat, and identification characters are provided. Keywords: Diptera, Ulidiidae, Homalocephala bimaculata, first record, Norway, biology, distribution.

• Gustad, Jørn R. & Aarvik, Leif (2017). A remarkable extension of range, the fungivorous moth Dryadaula heindeli Gaedike & Scholz, 1998 (Lepidoptera, Dryadaulidae) recorded in Norway. Norwegian Journal of Entomology. ISSN 1501-8415. 64(2), s. 138–142. Fulltekst i vitenarkiv Vis sammendrag

  A male specimen of Dryadaula heindeli Gaedike & Scholz, 1998 (Lepidoptera, Dryadaulidae) was found in western Norway in Møre og Romsdal at Averøy: Rokset in August 2017. The circumstances of the record, the species’ biology and geographical range are outlined. Figures of the moth and its genitalia as well as its habitat are given. Keywords: Lepidoptera, Dryadaulidae, Dryadaula heindeli, Norway, distribution, range extension, biology.

• Olsen, Thor Jan; Gustad, Jørn R.; Coulianos, Carl-Cedric & Hågvar, Sigmund (2017). Plant bugs on Tanacetum vulgare with Megalocoleus tanaceti (Fallén, 1807) new to Norway (Hemiptera, Heteroptera, Miridae). Norwegian Journal of Entomology. ISSN 1501-8415. 64(2), s. 130–133. Fulltekst i vitenarkiv Vis sammendrag

  The plant bug Megalocoleus tanaceti (Fallén, 1807) (Hemiptera, Heteroptera, Miridae) is reported new to Norway. It has probably colonised the county Østfold from Sweden. Since the species is morphologically similar to two other Miridae living on the host plant Tanacetum vulgare L., a short identification key is presented to separate M. tanaceti from M. molliculus (Fallén, 1807) and Oncotylus punctipes Reuter, 1875. The Norwegian distribution of the three species is given. Keywords: Heteroptera, Megalocoleus tanaceti, Tanacetum vulgare, Norway.

• Endrestøl, Anders; Olsen, Kjell Magne & Gustad, Jørn R. (2016). Two introduced species of Typhlocybinae (Hemiptera, Cicadellidae) new to Norway. Norwegian Journal of Entomology. ISSN 1501-8415. 63(2), s. 175–183. Fulltekst i vitenarkiv Vis sammendrag

  This paper present two species of Typhlocybinae (Hemiptera, Cicadellidae) new to Norway, Zonocyba bifasciata (Boheman, 1852) and Zyginella pulchra Löw, 1885. Both species are reported from plant importers and from established populations in Norway. We argue that both species have been introduced into Norway as hitchhikers on garden plants, but that we cannot rule out the possibility of a simultaneously range expansion into Norway from Sweden.

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• Rolfsen, Erik & Gustad, Jørn R. (2021). Er arealforvaltningen i norske kommuner bærekraftig? : vurdering med bakgrunn i en casestudie fra Kristiansund kommune.
• Halley, Duncan John; Stokke, Sigbjørn & Gustad, Jørn R. (2011). Distribution of waders and small passerines in relation to wind turbine placement at the Smøla wind-power plant, Norway.

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