Euura aegra ZMUO.

202 Euura aegra (Konow, 1895) Figs 230, 454 Amauronematus aeger Konow, 1895: 181. Lectotype designated by Oehlke & Wudowenz (1984). Amauronematus dalecarlicus Malaise, 1921a: 2–3. Synonymy by Lindqvist (1962a). Diagnosis Mostly black, brown or pale pterostigma, “ Amauronematus - type ” head, bifid claws, square-shaped valvula 3 with distinct invagination. Most similar species is E. hebes (character states in parentheses), from which it differs by having smoother mesepisternum (usually strongly matt) and paler pronotum (completely black or nearly so). Males possibly not clearly distinguishable from other aegra group species. Females sometimes with extensively brown mesepisternum and head (e.g., ZMUO.031774, ZMUO.031807). Type material examined Lectotype Amauronematus aeger GERMANY • ♀; Thüringen; SDEI, GBIF-GISHym4086. Holotype Amauronematus dalecarlicus SWEDEN – Dalarna • ♀; Säter; 60.312° N, 15.524° E; E.Klefbeck leg.; NHRS, NHRS-HEVA000003833. Host plants Betula pubescens. According to Kangas (1985) also B. pendula. Genetics COI Based on 6 specimens, maximum within-species distance is 3.5% and the nearest neighbour, diverging by a minimum of 0%, is Euura lindqvisti. Nuclear Based on 6 specimens, maximum within-species distance is 0.14% (0.29% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.2%, is Euura lindqvisti. Distribution and material examined Palaearctic. Specimens studied are from Finland, Germany, Norway, and Sweden.