<strong> The Eurasian species of <em> Xyela </ em> (Hymenoptera, Xyelidae): taxonomy, host plants and distribution </ strong> Author Blank, Stephan M. stephan.blank@senckenberg.de. Author Shinohara, Akihiko shinohar@kahaku.go.jp. Author Altenhofer, Ewald stephan.blank@senckenberg.de. text Zootaxa 2013 2013-03-18 3629 1 1 106 http://dx.doi.org/10.11646/zootaxa.3629.1.1 journal article 53391 10.11646/zootaxa.3629.1.1 9bac424f-e31f-4780-a976-f4fe3ba62156 1175-5326 5261330 FF47F026-9CB6-4390-B900-130A3DF2B33B Xyela lugdunensis group Diagnosis . Article 3 of maxillary palp 1.10–1.20 times longer than scape and about as wide as synantennomere 3; valvula 3 of ovipositor sheath diamond-shaped in cross section, parallel-sided in middle, in distal 0.1 dorsal and ventral edge narrowing to round tip ( Figs 88 , 96 ), tip with a defined sensilla field directed laterally and bearing 5–6 setae; penis valve with lateral lamella, proximal lobe with 28–30 cone-like sensilla and 0.90 times as wide as medial lobe ( Fig. 128 ). Species included . Xyela lugdunensis in the West Palearctic.