My research interest is to study patterns of insect diversity in a taxonomic and biosystematic framework. I am further interested in the functional evolution of their various organs such as genitalia and wings and how they are used in mating-systems and for species recognition. My research is contributing to build a taxonomic knowledge base of the Holarctic fauna of fungus gnats (Diptera, Sciaroidea). With some 1000 Nordic species, fungus gnats play an important role in the ecosystem of the boreal taiga.

ResearchGate profile:



Veileder for PhD-stipendiat Jon Peder Lindemann

Arbeider i CRIStin

  • Magnussen, Trude; Søli, Geir Einar Ellefsen; Kjærandsen, Jostein. Allodia Winnertz from the Himalayas, with nine species new to science (Diptera, Mycetophilidae).. ZooKeys 2019; Volum 820. ISSN 1313-2989.s 119 - 138.s doi: 10.3897/zookeys.820.31618.

  • Magnussen, Trude; Kjærandsen, Jostein; Johnsen, Arild; Søli, Geir Einar Ellefsen. Six new species of Afrotropical Allodia (Diptera: Mycetophilidae): DNA barcodes indicate recent diversification with a single origin. Zootaxa 2018; Volum 4407 (3). ISSN 1175-5326.s 301 - 320.s doi: 10.11646/zootaxa.4407.3.1.

  • Okuyama, Yudai; Okamoto, Tomoko; Kjærandsen, Jostein; Kato, Makoto. Bryophytes facilitate outcrossing of Mitella by functioning as larval food for pollinating fungus gnats. (omtale) Ecology 2018; Volum 99 (8). ISSN 0012-9658.s 1890 - 1893.s doi: 10.1002/ecy.2364.

  • Frafjord, Karl; Kjærandsen, Jostein. Lappspissmus i Troms og Nordland. Fauna 2016; Volum 69 (1). ISSN 0014-8881.s 2 - 11.

  • Katayama, Natsu; Abbott, Jessica K.; Kjærandsen, Jostein; Takahashi, Yuma; Svensson, Erik I.. Sexual selection on wing interference patterns in Drosophila melanogaster. (data) (fulltekst) (omtale) Proceedings of the National Academy of Sciences of the United States of America 2014; Volum 111 (42). ISSN 0027-8424.s 15144 - 15148.s doi: 10.1073/pnas.1407595111.

  • Martinsson, Svante; Kjærandsen, Jostein; Sundberg, Per. Towards a molecular phylogeny of the fungus gnat genus Boletina (Diptera: Mycetophilidae). Zoologica Scripta 2011; Volum 40. ISSN 0300-3256.s 272 - 281.

  • Kjærandsen, Jostein; Hedmark, Kjell; Kurina, Olavi; Polevoi, Alexei; Økland, Bjørn; Götmark, Frank. Annotated checklist of fungus gnats from Sweden (Diptera: Bolitophilidae, Diadocidiidae, Ditomyiidae, Keroplatidae and Mycetophilidae). Insect Systematics & Evolution Supplement 2007; Volum 65. ISSN 2001-4945.s 1 - 128.

  • Andersen, Trond; Kjærandsen, Jostein. A review of the Afrotropical genus Parecnomina Kimmins, with the description of three new species (Trichoptera: Ecnomidae). 2006 ISBN 4486031903.s 1 - 13.

  • Kjærandsen, Jostein. Species assemblages and community structure of adult caddisflies along a headwater stream in southeastern Ghana (Insecta : Trichoptera). Biodiversity and Conservation 2005; Volum 14 (1). ISSN 0960-3115.s 1 - 43.

  • Kjærandsen, Jostein. A revision of the Afrotropical genus Dhatrichia (Trichoptera, Hydroptilidae). Zoologica Scripta 2004; Volum 33. ISSN 0300-3256.s 131 - 185.

  • Andersen, Trond; Kjærandsen, Jostein; Morse, John C. Blyzophilus dorsohamatus gen. n., sp. n. from Ghana representing a new leptocerid tribe, Blyzophilini trib. n. (Trichoptera: Leptoceridae). 1999 ISBN 974-657-069-2.s 17 - 23.

  • Kjærandsen, Jostein; Netland, Kristin. Pahamunaya occidentalis, new species, from West-Africa, with a redescription of Cyrnodes scotti Ulmer (Trichoptera: Polycentropodidae). Proceedings of the 8th International symposium on Trichoptera 1997.s 249 - 257.

  • Kjærandsen, Jostein. Wlitrichia intropertica new genus, new species, and Cyclopsiella anderseni new genus, new species, two new monobasic genera of microcaddisflies from Ghana (Trichoptera: Hydroptilidae: Hydroptilini). Proceedings of the 8th International symposium on Trichoptera 1997.s 227 - 237.

  • Kjærandsen, Jostein; Andersen, Trond. Preliminary check-list of the caddisflies (Trichoptera) of Ghana, West Africa. Procceedings of the 8th International Symposium on Trichopt era 1997.s 239 - 247.

  • Andersen, Trond; Kjærandsen, Jostein. Notoernodes inornatus new genus, new species, first Beraeidae (Trichoptera) to be described from the Afrotropical region. Proceedings of the 8th International symposium on Trichoptera 1997.s 1 - 5.

  • Karlstad, Mari; Hegstad, Sveinulf; Icagic, Adnan; Wacko, Tomasz Andrzej; Rødli Systad, Jorunn Marie; Kjærandsen, Jostein; Elvebakk, Arve; Brekmo, Julia Hartviksen; Lilleeng, Daniel; Lien Eriksen, Gaute; Karlsen, Konstanse; Hildung, Mari; Lampert, Herta; Holm, Halfdan; Bratrein, Håvard Dahl; Ärnström, Rolf; Fjørtoft, Kjell. GLIMT 2018 SAMLINGENE. Fotografiutstilling, mørketidsutstilling utendørs 2018-12-06 - 2019-01-21 2018.

  • Magnussen, Trude; Søli, Geir Einar Ellefsen; Johnsen, Arild; Kjærandsen, Jostein. DNA barcode libraries - A treasure chest for alpha taxonomy. 17th International Barcode of Life Conference 2017-11-21 - 2017-11-24 2017.

  • Karlstad, Mari; Hegstad, Sveinulf; Kjærandsen, Jostein. GLIMT 2017 INSEKTER, Naturens levende fargejuveler av forsker og fotograf Jostein Kjærandsen. Fotografiutstilling, mørketidsutstilling utendørs 2017-11-30 - 2018-01-21 2017.

  • Kjærandsen, Jostein. Building the DNA barcode library of Holarctic Mycetophilidae (Diptera). Genome 2017; Volum 60 (11). ISSN 0831-2796.s 954 - 954.s doi:

  • Pitelkova, Iva; Lammers, Youri; Alsos, Inger Greve; Kjærandsen, Jostein. Praktisk DNA på Desembernatt. Desembernatt (prosjekt) 2016-12-01 - 2016-12-01 2016.

  • Kjærandsen, Jostein. Huldremygg, soppmygg og metallfargede småfluer – fortellinger om urgamle, ørsmå og tilsynelatende ubetydelige insekter, og om entomologene som ikke ignorerte de. Rotary møte 2015-02-16 - 2015-02-16 2015.

  • Maxmen, Amy; Kjærandsen, Jostein. Animal bahaviour: Come mate with me. (fulltekst) 2015.

  • Kjærandsen, Jostein; Rapp, Ole Magnus. Myggforskerne tar siste stikk. (fulltekst) 2015.

  • Glenndal, Svein Gunnar; Kumar, Rituvesh; Olsen, Stein Alexander; Nilssen, Arne Claus; Søli, Geir Einar Ellefsen; Hårsaker, Karstein; Moe, Kirsti Sørgaard; Djursvoll, Per; Gusarov, Vladimir; Aarvik, Leif; Frafjord, Karl; Kjærandsen, Jostein. MusitEntomologi - entomologidatabasen, Universitetsmuseenes samlingsdatabaser - versjon 2.0.0. 2014.

  • Kjærandsen, Jostein; Katayama, Natsu; Abbott, Jessica K.; Takahashi, Yuma; Svensson, Erik I.. Dancers in the Dark - Sexual selection acts on wing interference patterns in Drosophila melanogaster. 8th International Congress of Dipterology 2014-08-10 - 2014-08-15 2014.

  • Kjærandsen, Jostein. A quarry of fungus gnats in the quarry – a giant insect trap at the gateway to Fennoscandia. 8th International Congress of Dipterology 2014-08-10 - 2014-08-15 2014.

  • Kjærandsen, Jostein. Biodiversity studies of Afrotropical caddisflies (Insecta: Trichoptera). (omtale) (sammendrag) Universitetet i Bergen 2002.

  • Kjærandsen, Jostein; Andersen, Trond. A review of the genus Jabitrichia Wells, 1990, with an assessment of its phylogenetic position (Trichoptera: Hydroptilidae). 10th International Symposium on Trichoptera 2000.

  • Andersen, Trond; Morse, J. S.; Kjærandsen, Jostein. Blyzophilus dorsohamatus gen. n., sp. n. from Ghana representing a new leptocerid tribe, Blyzophilini tribe n. (Trichoptera: Leptoceridae). 9th International Symposium on Trichoptera 1998.

  • Andersen, Trond; Kjærandsen, Jostein. Adult caddisfly diversity along a headwater stream in south-eastern Ghana (Insecta: Trichoptera). XXVII SIL Congress 1998.