Euura vicina

283 Euura vicina (Serville, 1823) Figs 297, 519 Nematus vicinus Serville, 1823: 68. Holotype ♂ (MNHN), not examined. Type locality: northern France. Nematus longispinis Kriechbaumer, 1885: 13. Syntypes, sex not stated, not located. A name for specimens determined by A. Förster as N. coeruleocarpus. Type locality: not specified. Synonymy with Nematus crassus auct. nec Fallén by Dalla Torre (1894). Holconeme flavipes Matsumura, 1912: 218–219. Syntypes ♀♀, not examined. Type locality: Japan, Hokkaido, Sapporo. Synonymy by Takeuchi (1952). Diagnosis Its large size (female typically 8–9 mm, male 7–8 mm), colouration (black pterostigma, pale costa, nearly completely black body, including pronotum and tegula, extensively yellow or orange legs), and long inner hind tibial spur (longer than apical breadth of hind tibia) distinguishes this species from the other Euura. Host plants Rumex spp. (Miles 1936; Kangas 1985). Reports from Betula and Salix (see, e.g., Miles 1936) require confirmation. Genetics COI Based on 7 specimens, maximum within-species distance is 2.28% and the nearest neighbour, diverging by a minimum of 5.02%, is Euura putoni. Nuclear Based on 2 specimens, maximum within-species distance is 0.7%. The nearest neighbour, diverging by a minimum of 3.19%, is Euura notabilis. Distribution and material examined Palaearctic. Specimens studied are from Bulgaria, Finland, France, Germany, Norway, Russia, Sweden, Switzerland, and the United Kingdom.