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Damage on elm leaves caused by feeding of larvae of Aproceros leucopoda (Traismauer, AT).Courtesy: Ewald Altenhofer (Etzen, AT).
Elm twigs almost completely defoliated by feeding of larvae of Aproceros leucopoda (Kecskemét, HU).Courtesy: József Mikulás (Corvinus University of Budapest, HU).
AdultCourtesy: Jacobo Martin (ICM-CSIC, Barcelona, ES). See also http://www.flickr.com/photos/51708886@N03/6154658741/in/photostream
Empty cocoon of summer generation attached to lower surface of elm leaf (Neulengbach, AT).Courtesy: Stefan M. Blank. Senckenberg Deutsches Entomologisches Institute, Müncheberg (DE).