Euura nimbus ZMUO.
Year: 2025
Type: other
Abstract: 180 Euura nimbus (Benson, 1960) Figs 198, 426 Amauronematus nimbus Benson, 1960: 177–179. Amauronematus lanceatus Hellén, 1970: 17–18. Lectotype designated below. Syn. nov. Diagnosis Mostly black colouration, centrally pale brown pterostigma, and 20–23 serrulae of the lancet should usually enable identification of the females. Some specimens of E. sagmarius are almost as dark, but at least usually still seem to have partly pale or brownish mesepisternum (black in E. nimbus). Males might not be clearly distinguishable from E. sagmarius. Based on nuclear genes there are two clusters of E. nimbus, but no clear morphological differences between them. Type material examined Holotype Amauronematus nimbus SWITZERLAND – Valais • ♀; near Verbier; 46.10° N, 7.23° E; 2440–2590 m a.s.l.; 27 Jun. 1959; J.E. and R.B. Benson leg.; BMNH, B.M.TYPEHYM.1.767. Notes Head more like DEI-GISHym19984, sawsheath in lateral view more like ZMUO.030875. Lectotype Amauronematus lanceatus, here designated FINLAND – Lapin Lääni • ♀; Kilpisjärvi; 69.04° N, 20.81° E; 23 Jun. 1963; O. Ranin leg.; MZH, http://id.luomus.fi/GL.3400. Paralectotypes Amauronematus lanceatus FINLAND – Inari Lapland • 1 ♀; Utsjoki; 69.91° N, 27.03° E; 20 Jun. 1960; O. Ranin leg.; MZH, http://id.luomus.fi/GL.3401. – Kittilä Lapland • 1 ♀; Muonio, Pallastunturi; 68.100° N, 23.999° E; 1 Aug. 1951; J. Kaisila leg.; MZH, http://id.luomus.fi/GL.3402. Notes Best matches: DEI-GISHym19983, ZMUO.030875. A COI sequence (325 bp) of the lectotype (http://id.luomus.fi/ GL.3400) is identical to, e.g., DEI-GISHym84692 (E. sagmarius) and ZMUO.030875 (E. nimbus). Host plants Salix lanata and other grey willows. Genetics COI Based on 19 specimens, maximum within-species distance is 2.45% and the nearest neighbour, diverging by a minimum of 0%, is Euura sagmarius. Nuclear Based on 16 specimens, maximum within-species distance is 1.31% (0.96% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.45%, is Euura sagmarius. Distribution and material examined Palaearctic. Specimens studied are from Finland, Norway, Sweden, and Switzerland.
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: W6930606101
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