Plant Parasites of Europe

leafminers, galls and fungi

Andricus polycerus

Andricus polycerus (Giraud, 1859)

on Quercus

Andricus polycerus: galls

gall, with a length section and at richt two somewhat less current forms (from Houard, 1908a).


Galling of an adventive bud of a shoot that is not covered by litter or soil. The gall is cone standing on its tip, 1.5 cm high and about as wide above. The top is dish-shaped with a central nipple, and along its rim 3-5 broadly extending flattened spines of variable length, up to about one cm long. In the gall chamber a large, stone-hard inner gall with a coarsely ribbed surface. Larva solitary, pupating in the gall.

host plants

Fagaceae, monophagous

Quercus dalechampii, frainetto, infectoria, petraea, pubescens, robur.


Cynips polycera; C. subterranea Giraud, 1859; C. transversa Kieffer, 1897; C. trinacriae Stefani, 1906.


Regarding the sexual generation see the note under Andricus burgundus.


Bellido & Pujade-Villar (2001a), Bellmann (2012a) Blanes-Dalmau, Caballero-López & Pujade-Villar (2017a), Buhr (1965a), Cerasa (2015a), Cogolludo (1921a), Hellrigl (2009a, 2010a), Hellrigl & Bodur (2015a), Houard (1908a), Katılmış & Kıyak (2008a), Kemal & Koçak (2010a), Kwast (2012a, 2014a), Marković (2015a), Meika (2006a), Melika, Csóka & Pujade-Villar (2000a), Mete & Demirsoy (2012a), Pujade-Villar (2005b), Tomasi (2014a).

Last modified 4.ii.2019