Euura albipennis

104 Euura albipennis (Hartig, 1837) Figs 97, 336 Nematus albipennis Hartig, 1837: 196. Lectotype designated below. Nematus vernalis Hartig, 1840: 23. Lectotype designated by Haris (1997). Synonymy by Haris (1997). Nematus obscuratus Zaddach, 1883 in Brischke 1883: 195. Syntypes ♀ ♂, probably destroyed (Blank & Taeger 1998), except perhaps for “Ein ♂ aus Schweden von Dahlbom im Berliner Museum” (ZMHB), not examined. Type localities: East Prussia, Hungary and Sweden. Synonymy by (Konow 1904a). Pachynematus legirupus Konow, 1903a: 381–382 (key). Neotype ♀, designated by Liston et al. (2006). Synonymy by Liston et al. (2006). Pachynematus sannio Konow, 1903a: 382 (key). Lectotype designated below. Synonymy by Lindqvist (1961c). Diagnosis Abdomen completely or nearly completely (usually?) pale, pterostigma and costa pale, head and thorax from mostly black to extensively pale, claws with small subapical tooth, valvula 3 elongate, gradually tapering. Most similar species is E. bipartita (character states in parentheses), from which it differs by having pale costa (brown or black), usually smaller subapical tooth (usually bifid at least in female), mesoscutellum usually higher than lateral mesoscutal lobes (at same level as lateral mesoscutal lobes), usually uniformly black antenna (ventrally at least slightly pale), usually mostly black head and mesepisternum (extensively pale), and slightly less protruding serrulae. The lectotype designation for N. albipennis by Haris (1997: 118) is not valid, because a specimen from the Zoologische Staatssammlung Munich was selected, whereas Hartig (1837: 196) indicated “ Mus. Kl.” (= Museum Klug = ZMHB collection) for the deposition of original material. Type material examined Lectotype Nematus albipennis, here designated GERMANY [according to the title of Hartig 1837] • ♂; ZMHUB, GBIF-GISHym2773. Lectotype Nematus vernalis GERMANY • ♀; northern Germany [according to Hartig 1840: 22]; ZSM, DEI-GISHym3455. Neotype Pachynematus legirupus GERMANY – Mecklenburg-Vorpommern • ♀; Hiddensee, NSG Schwedenhau; 54.54° N, 13.09° E; SDEI, GBIF-GISHym4695. Lectotype Pachynematus sannio, here designated RUSSIA – Irkutskaja oblast • ♀; Irkutsk; 52.29° N, 104.24° E; SDEI, GBIF-GISHym3871. Paralectotype Pachynematus sannio RUSSIA – Irkutskaja oblast • 1 ♂; same data as for lectotype; SDEI, GBIF-GISHym3870. Host plants Persicaria maculosa Gray (Stein 1885; Macek et al. 2020). Two generations in central Europe (Stein 1885). Genetics COI Only one sequence available. The nearest neighbour, diverging by a minimum of 1.67%, is Euura monticola. Nuclear Only one sequence available. The nearest neighbour, diverging by a minimum of 1.18%, is Euura fuscomaculata. Distribution and material examined Palaearctic. Specimens studied are from Finland, Germany, and Russia.