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).