Plant Parasites of Europe

leafminers, galls and fungi

Andricus inflator

Andricus inflator Hartig, 1840

on Quercus, asexual generation

Andricus inflator gall

Quercus robur, Rheden, Stikke Trui

Andricus inflator opened gall

The unilocular gall contained three larvae.

Andricus inflator gall

The wall consists of an extremely hard inner layer, and a soft outer layer that in the course of time disintegrates and disappears. After removal of the outer layer the inner layer appears to have a ribbed surface.

Andricus inflator FF gall on Quercus robur

Quercus robur, Loenen (Gld), 19.ix.2018 © Arnold Grosscurt: young gall

Andricus inflator FF gall

opened gall

Andricus inflator FF gall with larva

larva in the gall

Andricus inflator larva

larva

gall

Smooth, globular bud gall, unilocular, solitary, its based surrounded by bud scales, with a wall consisting of a fleshy outer layer and a stone hard grooved inner layer. Galls from September till November; mature galls drop to the ground. Mainly on thin twigs on the boles of old trees.

host plants

Fagaceae, monophagous

Quercus frainetto, lusitanica, petraea, pubescens, robur, rubra.


on Quercus, sexual generation

Andricus inflator FM: gall on Quercus robur

Quercus robur, Loenen (Ge) © Arnold Grosscurt

Andricus inflator FM: gall on Quercus robur

the gall was vacated

Andricus inflator gall

Quercus sp., Belgium, prov. Liège, Grivegnée © Jean-Yves Baugnée

Andricus inflator galls

an old and a young gall (late April)

Andricus inflator: gall on Quercus robur

Quercus robur, Loenen (Gld) © Arnold Grosscurt: longitudinal section through the gall, showing the small inner gall

gall

Swelling of the tip of a shoot. Here a relatively large, elongated gall chamber; attached to its bottom a small elliptic inner gall.

host plants

Fagaceae, monophagous

Quercus frainetto, petraea, pubescens, robur.

synonyms

Andricus globuli Hartig, 1840.

inquilines

Synergus ruficornis.

references

Andersen & Fjellberg (1977a), Béguinot (2001c, 2002a,e,g, 2003a, 2006a,c, 2007b, 2012a), Bellmann (2012a), Buhr (1965a), Cerasa (2015a), Chinery (2011a), Cogolludo (1921a), Coulianos & Holmåsen (1991a), Dietrich (2016a), Eady & Quinlan (1963a), Hellrigl (2009a), Hellrigl & Bodur (2015a), Houard (1908a), Katılmış & Kıyak (2008a), Kemal & Koçak (2010a), Kollár (2007a, 2011a), Koops (2013a), Kwast (2012a, 2012a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon & Romain (2009a), Lambinon, Schneider & Chevin (2003a), Lehmann & Hannover (2016a), Melika (2006a), Melika, Csóka & Pujade-Villar (2000a), Nieves-Aldrey (2001a), Redfern & Shirley (2011a), Schneider (2016a), Roskam (2009a), Tavares (1905a), Tomasi (2003a, 2014a), Williams (2010a).

Last modified 26.vii.2020