Andricus gallaetinctoriae (Olivier, 1791)

on Quercus, agamous generation

Andricus gallaetinctoriae on Quercus cerris

Quercus cerris, France, Brittany, Larmor-Baden, 24.vi.2018 © Arnold Grosscurt

Andricus gallaetinctoriae on Quercus cerris

young galls are completely smooth

Andricus gallaetinctoriae on Quercus cerris

the gall is narrowly attached

Andricus gallaetinctoriae on Quercus cerris

There is no inner gall; the central gall chamber is small and has a hard wall.

gall

Globular, 15-20 mm large bud gal. The gall is hard and woody; its surface has some scattered ridges and pustules, is otherwise smooth. The hard gall tissue encloses a small central gall chamber; the is no inner gall.

host plants

Fagaceae, monophagous

Quercus “aegilops”, cerris, frainetto, ilex, lusitanica, petrae, pubescens, robur, rubra.


on Quercus, sexual generation

gall

Melika ao write that the sexual generation causes catkin galls, exclusively on Quercus cerris. However, the galls are not depicted or described, and other authors do not mention them.

host plants

Fagaceae, monophagous

Quercus cerris.

notes

It is very surprising that this gall is not mentioned in the book by Houard (1908a).

references

Buhr (1965a), Dauphin & Aniotsbehere (1997a), Hellrigl & Bodur (2015a), Ilie & Marinescu (2011a), Melika, Csóka & Pujade-Villar (2000a), Tomasi (2014a).

mod 18.xii.2018