Andricus gallaetinctoriae (Olivier, 1791)
on Quercus, agamous generation
Quercus cerris, France, Brittany, Larmor-Baden, 24.vi.2018 © Arnold Grosscurt
young galls are completely smooth
the gall is narrowly attached
There is no inner gall; the central gall chamber is small and has a hard wall.
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.
Quercus “aegilops”, cerris, frainetto, ilex, lusitanica, petrae, pubescens, robur, rubra.
on Quercus, sexual generation
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.
It is very surprising that this gall is not mentioned in the book by Houard (1908a).
Buhr (1965a), Dauphin & Aniotsbehere (1997a), Hellrigl & Bodur (2015a), Ilie & Marinescu (2011a), Melika, Csóka & Pujade-Villar (2000a), Tomasi (2014a).