Cynips longiventris Hartig, 1840
on Quercus, agamous generation
Quercus robur, Hungary, Kimle, 1.vi.2016 © László Érsek
detail
vertical section
horizontal section
Quercus robur, Zeewolde, Harderbos, 30.vii.2015 © Hans Jonkman
Quercus robur, Duin en Kruidberg: gall at the underside of the leaf
young gall
gall cut open (not easy: the wall is very hard)
Quercus robur, Nunspeet, huize De Vennen: very young gall
Gall
Galls from June till October, mature in September.
host plants
Fagaceae, monophagous
Quercus frainetto, x hispanica, petraea, pubescens, robur.
on Quercus, sexual generation
Quercus robur, Belgium, prov. East Flanders, Overboelare, Boelarebos @ Bart Uitterhaegen
detail
gall
The sexual generation makes oval or pear-shaped, hairy galls of c.2 mm length on dormant buds. The galls remind those of Cynips quercusfolii, but the hair cover is longer and greyish, rather than purplish violet. Also, there are no bud scales at the base.
host plants
Fagaceae, monophagous
Quercus frainetto, petraea, pubescens, robur.
synonyms
Dryophanta longiventris; D. similis (Adler, 1881)
parasitoids, predators
Aprostocetus aethiops; Eupelmus urozonus; Eurytoma brunniventris; Hyssopus nigritulus; Mesopolobus fasciiventris, fuscipes, sericeus; Sycophila biguttata; Torymus cyaneus.
references
Askew (1961b), Azmaz & Katılmış (2015a), Béguinot (2006a,c, 2007b), Bellmann (2012a), Blanes-Dalmau, Caballero-López & Pujade-Villar (2017a), Buhr (1965a), Chinery (2011a), Cogolludo (1921a), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Eady & Quinlan (1963a), Flügel (2016a), Groom (2011a), Hellrigl (2009a), Hellrigl & Bodur (2015a), Houard (1908a), Kollár (2007a, 2011a), Koops (2013a), Kwast (2012a, 2014a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon & Romain (2009a), Lambinon, Schneider & Chevin (2003a), Lehmann & Hannover (2016a), Melika (2006a), Melika, Csóka & Pujade-Villar (2000a), Mutun & Dinç (2014a), Nieves-Aldrey (2001a), Redfern & Shirley (2011a), Roskam (2009a), Stănescu (2009a), Sylvén (1960a), Tomasi (2014a), Williams (2010a).