Plant Parasites of Europe

leafminers, galls and fungi

Andricus curvator

Andricus curvator Hartig, 1840

on Quercus, agamous generation

Andricus curvator: agamous generation gall on Quercus robur

Quercus robur, België, prov. Antwerpen, Mol, 24.iv.2015 © Carina Van Steenwinkel

The parthenogenetic generation forms 2-3 mm large bud galls on young shoots in August-September, that fall to the ground before winter. The galls, sometimes two together, are almost completely hidden by the bud scales. They are smooth, shining, obpyriform with a somewhat acute tip; just below the tip the colour of the wall often forms a light-coloured ring.

host plants

Fagaceae,monophagous

Quercus canariensis, cerris, faginea, x hispanica, petraea, pubescens, pyrenaica, robur.


on Quercus, sexual generation

Andricus curvator FM gall

gall (from Eady & Quinlan, 1963a)

Andricus curvator

Quercus robur, Wijk aan Zee, 10.v.2020 © Cor Zonneveld

Andricus curvator FM gall on Quercus robur

Quercus robur, Spain, Santiago de Compostella, 19.v.2018 © César González-Pérez

Andricus curvator: gall on Quercus robur

Quercus robur, Zeewolde, Harderbos, 13.v.2016 © Hans Jonkman

Andricus curvator gall

Quercus robur Castricum, 18.v.2012: young gall (mid May),

Andricus curvator, opnend gall

opened gall, with inner gal

Andricus curvator FM gall on Quercus cerris

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

Andricus curvator FM gall on Quercus cerris

underside

Andricus curvator: shoot gall on Quercus robur

Quercus robur, België, prov. Antwerpen, Mol, 8.v.2020 © Carina Van Steenwinkel: sometimes the gall occurs in a young, still green, shoot

Andricus curvator: shoot gall on Quercus robur

easily recognisable after opening of the gall by the globular inner gall, here already long vacated

Andricus curvator on Quercus robur

Quercus robur, Zwolle, Zandhove, 9.v.2023 © Arnold Grosscurt: numerous galls on water shoots in a freshly cut stump.

Andricus curvator on Quercus robur

another imago

Andricus curvator on Quercus robur

sliced gall with three inner galls

parasite

Malformation of a leaf, petiole or in a still green shoot, up to a cm in size, light green to pale brown. Inside a relatively large gall chamber a globular inner gall, attached to its bottom. The gall is mature in end July.

host plants

Fagaceae,monophagous

Quercus canariensis, cerris, faginea, frainetto, hartwissiana, x haynaldiana, x hispanica, infectoria, ithaburensis, lusitanica, petraea, pubescens, pyrenaica, robur, vulcanica.

distribution within Europe

PESI (2024).

synonyms

Andricus collaris Hartig, 1840; Andricus curvator var. lusitanica Kieffer, 1901.

references

Andersen & Fjellberg (1977a), Askew (1961b), Azmaz (2015a), Azmaz & Katilmiş (2017a), Bayrak (2019a), Béguinot (2001c, 2002f,g, 2003a, 2006a, 2007b, 2012a), Bellmann (2012a), Blanes-Dalmau, Caballero-López & Pujade-Villar (2017a), Buhr (1965a), Burton, Ellis & Schneider (2022a), Cerasa (2015a), Chinery (2011a), Cogolludo (1921a), Coulianos & Holmåsen (1991a), Demirel, Tataroğlu & Katilmiş (2023a), Dietrich (2016a), Eady & Quinlan (1963a), Gómez, Hernández Nieves, Garrido Torres, ao (2006a), Hellrigl (2009a, 2010a, 2012a), Hellrigl & Bodur (2015a), Houard (1908a), Karaca & Katılmış (2020a), Katılmış & Kıyak (2008a), Kemal & Koçak (2010a), Kollár (2007a, 2011a), Koops (2013a), Kwast (2012a, 2014a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon & Romain (2009a), Lambinon, Schneider & Chevin (2003a), Lehmann & Hannover (2016a), Marković (2014a, 2015a), Melika (2006a, 2018a), Melika, Csóka & Pujade-Villar (2000a), Nieves-Aldrey (1983a, 1984b, 2001a), Nieves-Aldrey, Gómez, Hernández Nieves & Lobo (2006a), Redfern & Shirley (2011a), Roskam (2009a), Shachar, Melika, Inbar & Dorchin (2018a), Tavares (1905a), Tomasi (2003a), Williams (2010a).

Last modified 2.i.2024