Euura gemmahelveticae Kopelke, 2001

on Salix

gall

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.

hostplants

Salicaceae, narrowly monophagous

Salix helvetica.

note

Member of the Euura amerinae species group.

references

Kopelke (2001a), Liston, Heibo, Prous ao (2017a).

mod 8.ix.2017