Euura gemmahelveticae Kopelke, 2001
the catkin-buds are swollen and unusually firm. For the oviposition the wasp’s ovipositor has pierced through the base of petiole, often leaving a clear scar.
Salicaceae, narrowly monophagous
Member of the Euura amerinae species group.
Kopelke (2001a), Liston, Heibo, Prous ao (2017a).