Dryocosmus nervosus (Giraud, 1859)

on Quercus

Dryocosmus nervosus: gall on Quercus cerris

Quercus cerris, gall (from Houard, 1908a)

gall

Leaf gall at the end of a lateral vein, protruding equally at upperside and underside. The gall is globular, 5-8 mm, with a thick, fleshy wall.

hostplants

Fagaceae, narrowly monophagous

Quercus cerris.

notes

One supposes this species to be the sexual generation of Dryocosmus cerriphilus.

references

Buhr (1965a), Hellrigl (2009a), Houard (1908a), Melika, Csóka & Pujade-Villar (2000a).

mod 9.vi.2018