Euura malaisei
Year: 2025
Type: other
Abstract: 288 Euura malaisei (Hellén, 1970) Figs 301, 530 Decanematus longiserra Malaise, 1931b: 31–32.Secondary homonym of Nematus longiserra Thomson, 1863 [= Euura longiserra (Thomson, 1863)]. Amauronematus malaisei Hellén, 1970: 7. Replacement name for Decanematus longiserra Malaise, 1931. Diagnosis Females are most similar to E. erecta: see differences mentioned under that species. Penis valves are very similar to E. leucolena and E. rectiserra. Dorso-apically, the valviceps might be more expanded in E. malaisei than in E. leucolena and E. rectiserra. Female 5.0 (6.5) mm. Head black; labrum black or brown; clypeus black; supraclypeal area black; thorax black; pronotum black; tegula black; pterostigma centrally paler than externally; metafemur black or apically pale; metatibia brown or pale; hind tarsus black; abdomen black; hypopygium black or posteriorly slightly pale; valvifer 2 at least partly pale or brown; tergum 9 black to extensively pale; tergum 10 black or slightly pale; valvula 3 basally slightly pale; cerci pale with darkened tip; mesepisternum slightly matt; valvula 3 long, in dorsal view gradually narrowing, with acute tip. Male 4.0– 4.5 mm. Head black; labrum black or brown; clypeus black; supraclypeal area black; thorax black; pronotum black; tegula black; pterostigma centrally paler than externally; metafemur black or apically pale; metatibia brown or pale; hind tarsus black; sternum 9 pale; mesepisternum slightly matt; projection of tergum 8 small. Type material examined Holotype Decanematus longiserra RUSSIA – Kamchatka oblast • ♀; Klutchi [Klyuchi]; 56.32° N, 160.85° E; R. Malaise leg.; NHRS, NHRS-HEVA000006442. Notes Holotype length 6.5 mm, or 6.9 mm including valvula 3. Host plants Salix glauca, S. lanata. Genetics COI Based on 6 specimens, maximum within-species distance is 3.75% and the nearest neighbour, diverging by a minimum of 0%, is Euura leucolena. Nuclear Based on 6 specimens, maximum within-species distance is 0.59% (0.51% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.17%, is Euura erecta (ZMUO.063230). Distribution and material examined Palaearctic. Specimens studied are from Finland, and Russia.
Authors: Prous, Marko, Liston, Andrew, Monckton, Spencer K., Kramp, Katja, Vårdal, Hege, Vikberg, Veli, Heibo, Erik, Mutanen, Marko
Institutions: University of Tartu Natural History Museum and Botanical Garden, University of Tartu, University of Oulu, Senckenberg German Entomological Institute, Centre for Biodiversity Genomics, University of Guelph, Leibniz Centre for Agricultural Landscape Research, Swedish Museum of Natural History
Language: English
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W6893415627
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