Andricus infectorius (Hartig, 1843)
on Quercus, agamous generation
Quercus cerris, Frankrijk, Bretagne, 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.
Quercus pubescens, France, dépt. Var, Le Pradet, lieu-dit “Lou Pigno” © Stéphane Claerbout
gall in close up
another specimen
Quercus pubescens, Hungary, Budapest © László Érsek
opened gal
larva
gall
Globular gall, up to 1.5 cm large, on the lateral of terminal bud of a branch. The gall often basally is narrowed, reminding then of a small fig. The surface has a small number of sturdy warts. The colour of a fresh gall is green with small white specks. Around the gall chamber a hard layer.
host plants
Fagaceae, monophagous
Quercus frainetto, petraea, pubescens, robur.
notes
Although the gall shown above look quite different, that fall within the variability depicted by Melika. The Hungarian material reminds of A. sternlichti, but in that species the small warts of the gall surface are pointed.
on Quercus, sexual generation
gall
Catkin galls. They are depicted (not described) by Melika ao; they appear ovoid and very small.
host plants
Fagaceae, monophagous
Quercus cerris.
synonyms
Andricus tinctoriusnostrus Benson, 1953; Cynips tinctoria Olivier var. nostra Kieffer, 1901.
Much confusion has existed about the interpretation of A. gallaetinctoriae (Olivier, 1791). Bellido ao consider it a “nomen dubium” that in most cases is applicable to A. infectorius.
notes
For some time it has been assumed, by among others Buhr, that Andricus burgundus were the sexual generation of infectorius. This has shown to be incorrect.
references
Bellido, Ros-Farré, Melika & pujade-villar (2003a), Bellmann (2012a), Buhr (1965a), Cerasa (2015a), Dauphin & Aniotsbehere (1997a), Hellrigl (2009a, 2010a, 2012a), Hellrigl & Bodur (2015a), Houard (1908a), Ilie & Marinescu (2011a), Katılmış & Kıyak (2008a), Kemal & Koçak (2010a), Kwast (2012a, 2012), Melika (2006a), Melika, Csóka & Pujade-Villar (2000a), Tomasi (2014a).