Cynips longiventris Hartig, 1840

on Quercus, agamous generation

Cynips longiventris: gall on Quercus robur

Quercus robur, Zeewolde, Harderbos © Hans Jonkman

Cynips longiventris gall

Quercus robur, Duin en Kruidberg: gall at the underside of the leaf

Cynips longiventris young gall

young gall

Cynips longiventris gall, opened

gall cut open (not easy: the wall is very hard)

Cynips longiventris very young gall

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

Cynips longiventris: sexxual generation galls on Quercus robur

Quercus robur, Belgium, prov. East Flanders, Overboelare, Boelarebos @ Bart Uitterhaegen

Cynips longiventris: sexxual generation galls on Quercus robur

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.

synonyms

Dryophanta longiventris; D. similis (Adler, 1881)

host plants

Fagaceae, monophagous

Quercus frainetto, petraea, pubescens, robur.

references

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).

mod 4.ii.2019