Euura trochanterata

332 Euura trochanterata (Malaise, 1931) Pteronidea trochanterata Malaise, 1931a: 149–151. Nematus hequensis G.R. Xiao, 1990. Holotype ♀ (CFRB?), not examined. Type locality: China, Shanxi Province, Hequ County. Syn. nov. Diagnosis The black pterostigma and mesepisternum, yellow costa, mostly black abdomen, reddish head and reddish thorax dorsally, and mostly black femora make the females rather easily recognizable. Penis valves (Xiao 1990) might not be clearly distinguishable from, e.g., the melanocephalus and miliaris groups. Larvae (Wang et al. 2015) are most similar to those of E. miliaris or E. salicis. Phylogenetically (based only on COI,>1000 bp) appears to be closest to E. salicis and the E. melanocephalus group. Type material examined Holotype Pteronidea trochanterata RUSSIA – Primorsky Kray • ♀; Vladivostok, Sedanka; 43.21° N, 131.96° E; 12 Aug. 1930; R. Malaise leg.; NHRS, NHRS-HEVA000006438. Notes The holotype is 8.2 mm long, not 9 mm as stated in the original description. Based on the details given in Wang et al. (2015), Nematus hequensis is not different from Pteronidea trochanterata Malaise. Host plants Salix spp. and Populus spp. (Wang et al. 2015). Genetics COI Based on 2 specimens (NC_072336, identified as Nematus trochanteratus and NC_072337 identified as N. hequensis), maximum within-species distance is 0.91% and the nearest neighbour, diverging by a minimum of 3.96%, is Euura vicina. Nuclear No data. Distribution and material examined East Palaearctic. Specimens studied are from China (only genetics), Russia.