Euura hastatae Malaise, 1920

on Salix

gall

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.

host plants

Salicaceae, narrowly monophagous

Salix hastata.

larva

Third abdominal segment with 3 dorsal annulets. Suranal plate without pseudocerci.

note

Member of the Euura amerinae species group.

references

Beneš (2014a), Kopelke (1999a, 2001a), Liston, Heibo, Prous ao (2017a), Roller, Beneš, Blank ao (2006a).

mod 11.i.2019