Euura nigritarsis Cameron, 1885

Hymenoptera, Tenthredinidae

on Salix

Euura nigritarsis: gall on Salix caprea

Salix caprea © Roelof Jan Koop

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. Inside a single sawfly caterpillar. Often several buds of the same shoot are galled.

hostplants

Salicaceae, narrowly monophagous

Salix caprea.

references

BeneŇ° (2014a), Kopelke (1999a, 2001a), Liston (2006a), Mol (2013a).

12/03/2017

mod 28.vi.2017