Cynips divisa Hartig, 1840
on Quercus, agamous generation
Quercus robur, Nieuwendam: gall, at underside of leaf
the wall is thck and hard …….
and consists of columnar cells
often the wall harbours one or two inquiline larvae ………
but they did not prevent this larva to reach the pupal stage
a parasitoid (with exuvium), attached to a larva
Galls from June till October, mature in September.
Quercus canariensis, frainetto, x hispanica, infectoria subsp. veneris, lusitanica, macranthera, petraea, pubescens, pyrenaica, robur.
on Quercus, sexual generation
galls (from Houard, 1908a)
The sexual generation makes thin-walled, unilocular, lemon-shaped galls that with their tip are attached to a leaf margin, generally at the end on a vein. They are 2 x 3 mm in size, finely pubescent, and have about 10 length ridges. Galls also may be attached to the petiole of a catkin; these are larger, 4-6 mm long, blister-like and somewhat translucent.
Quercus frainetto, infectoria subsp. veneris, petraea, pubescens, robur.
Dryophanta divisa; D. verrucosa (von Schlechtendal, 1870).
Of the practically unknown Cynips schlechtendali (Kieffer, 1901) it is stated by Houard that the gall is similar to the one of divisa, with the same finely granular surface, “but entirely smooth”.
Abras, Fassotte, Chandelier & Cavelier (2008a), Béguinot (2002d,e, 2006a,c, 2007b), Bellmann (2012a)m Blanes-Dalmau, Caballero-López & Pujade-Villar (2017a), Buhr (1965a), Cerasa (2015a), Chinery (2011a), Cogolludo (1921a), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Eady & Quinlan (1963a), Ecott (2012a), Groom (2011a), Hellrigl (2009a), Hellrigl & Bodur (2015a), Houard (1908a), Ilie & Marinescu (2011a) Katılmış & Kıyak (2008a), Kemal & Koçak (2010a), Kollár (200a, 2011a), Koops (2013a), Kwast (2012a, 2014a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon, Schneider & Chevin (2003a), Lehmann & Flügel (2012a), Lehmann & Hannover (2016a), Melika (2006a), Melika, Csóka & Pujade-Villar (2000a), Nieves-Aldrey (2001a), Nieves-Aldrey, Gómez, Hernández Nieves & Lobo (2006a), Redfern & Shirley (2011a), Roskam (2009a), Shachar, Melika, Inbar & Dorchin (2018a), Tomasi (2003a, 2014a), Williams (2010a).