Euura krausi ZMUO.

263 Euura krausi (Taeger & Blank, 1998) Figs 290, 488 Amauronematus krausi Taeger & Blank, 1998: 251–252. Diagnosis Flat serrulae and usually characteristic colouration of the abdomen (pale colouration dorsally distinctly expanding posteriorly) enable identification of the females from the others in the vittata group. Male penis valves are most similar to those of E. tillbergi, but externally males of E. krausi tend to be paler. Type material examined Holotype Amauronematus krausi GERMANY – Hessen • ♀; Climbach; 50.67° N, 8.82° E; 27 May 1986; H. Weiffenbach leg.; reared ex larva on Populus tremula; SDEI, GBIF-GISHym4094. Host plants Populus tremula; also P. alba L., according to Macek et al. (2020). Genetics COI Based on 12 specimens, maximum within-species distance is 3.23% and the nearest neighbour, diverging by a minimum of 0%, is Euura tillbergi. Nuclear Based on 8 specimens, maximum within-species distance is 0.67% (0.8% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.12%, is Euura tillbergi. Distribution and material examined Palaearctic. Specimens studied are from Bulgaria, Finland, Germany, Russia, and Sweden.