Andricus callidoma (Hartig, 1841)
on Quercus, agamous generation
Quercus robur, Belgium, prov. Namur, Saint-Servais, Asty-Moulin © Jean-Yves Baugnée
Quercus robur, Mierlo, Wolfsven: the gall has five ribs © Arnold Grosscurt
opened gall
gall
Slender, fusiform gall, less than a cm in size, on a stalk at least as long as the gall itself. Galls from May till October, mature in August.
hostplants
Fagaceae, monophagous
Quercus petraea, pubescens, robur.
on Quercus, sexuele generation
Quercus robur, Germany, Saarland, Bexbach © Volker Fäßler
another specimen
Quercus robur, Dronten © Arnold Groscurt
detail
Quercus robur, Ackerdijkse Plassen © Ben van As
in this case the catkins have extended normally
gall
The sexual generation forms catkin galls, c. 2 mm long, bearing white hairs that are much longer then the diameter of the gall. Often the galls are partly hidden by the bud scales; often also the catkins don’t extend to their normal length. Often high in the canopy of mature trees. Galls are mature end of May.
host plants
Fagaceae, monophagous
Quercus petraea, pubescens, robur.
synonyms
Andricus cirratus Adler, 1881; A. giraudi Wachtl, 1882.
references
Béguinot (2002g, 2006b, 2007b), Bellmann (2012a), Blanes-Dalmau, Caballero-López & Pujade-Villar (2017a), Buhr (1965a), Cerasa (2015a), Chinery (2011a), Eady & Quinlan (1963a), Groom (2011a), Hellrigl & Bodur (2015a), Houard (1908a), Katılmış & Kıyak (2008a), Kemal & Koçak (2010a), Koops (2013a), Kwast (2012a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon Schneider & Feitz (2012a), Marković (2014a, 2015a), Melika (2006a), Melika, Csóka & Pujade-Villar (2000a), Nieves-Aldrey (1983a, 2001a), Redfern & Shirley (2011a), Roskam (2009a), Tavares (1905a [“cirrhatus”]), Tomasi (2014a), Wiebes-Rijks (1976a), Williams (2010a).