Euura hastatae Malaise, 1920
the catkin-buds are clearly swollen and unusually firm. For the oviposition the wasp’s ovipositor has pierced through the base of petiole, often leaving a clear scar. Inside a single sawfly caterpillar. Often several buds of the same shoot are galled. Univoltine, hibernation in the soil.
Salicaceae, narrowly monophagous
Third abdominal segment with 3 dorsal annulets. Suranal plate without pseudocerci.
Member of the Euura amerinae species group.
Beneš (2014a), Kopelke (1999a, 2001a), Liston, Heibo, Prous ao (2017a), Roller, Beneš, Blank ao (2006a).