Andricus singularis Mayr, 1870

on Quercus

Andricus singularis: gall on Quercus cerris

Quercus cerris, gall (from Houard, 1908a).

Aceria singularis: gall on Quercus ilex

Quercus ilex, gall (from Houard, 1908a).


A terminal or lateral bud is transformed into a green, pyriform gall of up to 8 mm length; on the gall a few malformed leaves, or even anthers. In the gall a hard, brown, ovoid inner gall that is attached only at its tip. Larva solitary, pupation in the gall.


Fagaceae, narrowly monophagous

Quercus cerris, ilex, suber.


Andricus singulus Mayr, 1881.


Only the sexual generation is known.


Buhr (1965a), Cerasa (2015a), Dauphin & Aniotsbehere (1997a), Hellrigl & Bodur (2015a), Hesse (1972a), Houard (1908a), Jennings (2014a), Kwast (2014a), Melika (2006a), Melika, Csóka & Pujade-Villar (2000a), Roskam (2009a), Stone, Atkinson, Rokas, Nieves-Aldrey, Melika, Ács, Csóka, Hayward, Bailey, Buckee & McVean (2008a), Tomasi (2014a).

mod 22.viii.2018