<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 coerulea Schilling, 1830 Xyela coerulea Schilling in Gravenhorst, 1830: 54–55 , sex?, Poland : Silesia [“ Schlesien ”], Zobtenberg; nomen nudum. Xyela caerulea : Dalla Torre 1894: 399 (unjustified emendation). Remarks . The name Xyela coerulea is mentioned with Schilling as the author in Gravenhorst’s (1830) report about the 1829’s meetings of the entomological section of the “ Schlesische Gesellschaft für vaterländische Cultur ”: “Hr. Schilling beschrieb eine neue Art von Xyela , welche coerulea genannt wurde, und am Zobtenberg gefangen war [...]” [Mr Schilling described a new species of Xyela , which has been called coerulea , and which was collected at the Zobtenberg]. Dalla Torre (1894) emended the name as caerulea , and Klima (1937) listed it as a species inquirenda . Smith (1978) correctly treated it as a nomen nudum , because the name was not accompanied by an original description (Art. 12.1, ICZN 1999 ).