Euura nigerrima
Year: 2025
Type: other
Abstract: 280 Euura nigerrima (Konow, 1903) Figs 294, 514–515 Pachynematus nigerrimus Konow, 1903a: 381 (key). Lectotype designated by Oehlke & Wudowenz (1984). Nematus fumosus Lacourt, 1991: 69–70. Syn. nov. Diagnosis Its mostly or nearly completely black body, dark brown or black pterostigma and costa, size (female 7–8 mm, male 6–7 mm), small or large subapical tooth (not clearly bifid), head not of “ Amauronematus - type ”, more or less triangular valvula 3 in dorsal view, lancet, and penis valve should enable identification of the species. Species with similar lancet (16–18 serrulae, apical ones hook-shaped) are distinctly paler (at least legs; E. declinata, E. scotonota, and the other species of the group), smaller (less than 6 mm, e.g., E. uda, E. excisa), or have a distinctly matt mesepisternum (E. excisa). Species with similar penis valves (1.6 mm, elongate, paravalva without distinct spines and ventroapically not distinctly protruding, valvispina long, straight and not distinctly expanded at base, ventroapical margin of paravalva narrow and more or less perpendicular to valvispina, invagination between valvispina and ventroapical margin of paravalva small or absent, connection between dorsal margins of valvura and valviceps without distinct bend) are distinctly paler (e.g., E. notabilis and E. putoni), smaller (less than 5.5 mm, e.g., E. uda), or have an “ Amauronematus - type ” head (e.g., some specimens in E. vittata group). Also, external morphology and penis valves of E. hyperborea are similar, but this species is found in (sub) arctic habitats unlike E. nigerrima. Pronotum black or posterior margin slightly pale. Costa and pterostigma black or dark brown. Metafemur apically (up to half) pale. No genetic data available, but based on morphology probably closely related to paler E. notabilis and E. putoni (lancet and penis valve are not distinguishable from these species). Type material examined Lectotype Pachynematus nigerrimus AUSTRIA – Tirol • ♂; Innsbruck; 47.277° N, 11.378° E; 10 May 1896; Friese leg.; SDEI, GBIFGISHym3883. Notes Length 6.3 mm. Holotype Nematus fumosus FRANCE – Provence-Alpes-Cote-d’Azur • ♂; Ailefroide; 44.89° N, 6.45° E; 1500 m a.s.l.; 30 May 1982; V. Lacourt leg.; CTN, DEI-GISHym12672. Host plants Unknown. Genetics COI No data. Nuclear No data. Distribution and material examined Palaearctic. Specimens studied are from Austria and France.
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: W6893426571
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