Euura monticola PR.

122 Euura monticola (Thomson, 1871) Figs 101, 344 Nematus monticola Thomson, 1871: 147. Lectotype designated below. Nematus pschornwalcheri Muche, 1972: 34–37. Holotype ♀ (OLML), not examined. Type locality: Switzerland, Jura, Franches Montagnes, Etang de la Gruère. Synonymy by Lacourt (1999). Pachynematus vaginosus Konow, 1903a: 381 (key). Syntypes ♀ ♂: specimens lost, only slide of penis valves (PR.231AZ) found in DEI. Type locality: Russia, Irkutsk. Syn. nov. Diagnosis The most similar species is E. bipartita: see discussion under that species. Synonymy of Pachynematus vaginosus Konow is based on the penis valve (preparation PR.231AZ in SDEI) of a presumably syntype specimen, which resembles most closely E. monticola. Extensively pale, abdomen with distinct black line dorsally or at least terga 1–2 extensively black, pterostigma pale, claws bifid, valvula 3 in dorsal view elongate, gradually tapering. ZMUO.063341 is slightly darker (fore and middle femora at base and abdomen dorsally more extensively black, valvula 3 mostly black) than the syntype DEI-GISHym88923. Male ZMUO.061039 has small subapical tooth. Type material examined Lectotype Nematus monticola, here designated SWEDEN • ♀; Lapponia intermedia [central Lapland]; C.H. Boheman leg.; MZLU, MZLU2017319 / DEI-GISHym88923. Notes 17–18 serrulae. Best morphological match: ZMUO.063341. Host plants Comarum palustre L. (Kangas 1985; Pschorn-Walcher & Altenhofer 2000). 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 bipartita. Nuclear Based on 5 specimens, maximum within-species distance is 0.92% (0.34% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.35%, is Euura bipartita. Distribution and material examined Palaearctic. Specimens studied are from Finland, Sweden, and the United Kingdom.