{"id":25847,"date":"2017-04-04T07:49:26","date_gmt":"2017-04-04T07:49:26","guid":{"rendered":"https:\/\/bladmineerders.nl\/animalia\/arthropoda\/insecta\/hymenoptera\/apocrita\/cynipidae\/cynips\/cynips-quercusfolii\/"},"modified":"2026-04-27T10:02:16","modified_gmt":"2026-04-27T08:02:16","slug":"cynips-quercusfolii","status":"publish","type":"page","link":"https:\/\/bladmineerders.nl\/en\/parasites\/animalia\/arthropoda\/insecta\/hymenoptera\/apocrita\/cynipoidea\/cynipidae\/cynipinae\/cynipini\/cynips\/cynips-quercusfolii\/","title":{"rendered":"Cynips quercusfolii"},"content":{"rendered":"

Cynips quercusfolii<\/em> Linnaeus, 1758<\/h1>\n

<\/p>\n

<\/h2>\n

<\/p>\n


\n<\/p>\n

Quercus<\/em>, agamous generation<\/h2>\n

<\/p>\n

\"Cynips
\n
\n<\/p>\n

Quercus robur<\/em>, Hungary, Kimle, 4.ix.2017 \u00a9 L\u00e1szl\u00f3 \u00c9rsek<\/p>\n

<\/p>\n

\"Cynips
\n
\n<\/p>\n

larva in opened gall<\/p>\n

<\/p>\n

\"Cynips
\n
\n<\/p>\n

Quercus robur<\/em>, Belgium, prov. Hainaut, Comines, 6.viii.2019 \u00a9 Martin Windels<\/p>\n

<\/p>\n

\"Cynips
\n
\n<\/p>\n

galled lead, upper side<\/p>\n

<\/p>\n

\"Cynips
\n
\n<\/p>\n

gall at the underside; see note below<\/p>\n

<\/p>\n

\"Cynips
\n
\n<\/p>\n

two more galls<\/p>\n

<\/p>\n

\n\"Cynips
\n
\n<\/p>\n

Quercus robur<\/em>, Bergen aan Zee, 2.ix.2012<\/p>\n


\n<\/p>\n

\n\"Cynips
\n
\n<\/p>\n

Generally the galls remain attached to the leaf until autumn, then drop with the leaf to the ground, but sometimes the galls drop spontaneously (?) already in late summer.<\/p>\n

\n<\/p><\/div>\n

<\/p>\n

\n\"Cynips
\n
\n<\/p>\n

Hollandsche Rading: opened gall; the gall is soft and juicy<\/p>\n

\n<\/p><\/div>\n

<\/p>\n

\n\"Cynips
\n
\n<\/p>\n

the small larval chamber<\/p>\n

\n<\/p><\/div>\n

<\/p>\n

\n\"Cynips
\n
\n<\/p>\n

Wolfheze, 6.x.2007: hibernation as imago in a gall that has fallen to the ground<\/p>\n

\n<\/p><\/div>\n

<\/p>\n

\n\"Cynips
\n
\n<\/p>\n

Nieuwendam, 8.ix.2012: extremely heavy infestation of a small tree in the bank of a main highway<\/p>\n

\n<\/p><\/div>\n

<\/p>\n


\n<\/p>\n

Gall<\/h3>\n

Galls from July till October, mature in August.<\/p>\n

<\/p>\n


\n<\/p>\n

host plants<\/h3>\n

Fagaceae, monophagous<\/p>\n

<\/p>\n

Quercus<\/a> frainetto, infectoria, ithaburensis, macranthera, petraea, pubescens, pyrenaica, robur, vulcanica.<\/p>\n


\n<\/p>\n

Rarely also Q. cerris<\/em>.<\/p>\n


\n<\/p>\n


\n<\/p>\n

inquilines<\/h3>\n

Archarius pyrrhoceras<\/a><\/em>.<\/p>\n

<\/p>\n


\n<\/p>\n

notes<\/h3>\n

Normally the surface of the gall si completely smooth, but galls with a tuberculare surface do occur as well. Redfern & Shirley write that this occur in galls on Quercus petraea<\/em>, but this cannot be the complete explanation. The statement by Buhr thit is exclusively concerns parasitised galls needs confirmation.<\/p>\n

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\n<\/p>\n

sexual generation<\/h2>\n

<\/p>\n

\"Cynips
\n
\n<\/p>\n

Quercus robur<\/em>, Amsterdamse Bos, 26.iv.2026 \u00a9
\nCor Zonneveld<\/a> <\/p>\n

<\/p>\n

\n\"Cynips
\n
\n<\/p>\n

Quercus petraea<\/em>, Belgium, prov. Namur, Couvin, Frasnes \u00a9 St\u00e9phane Claerebout: group of dormant buds with two young galls<\/p>\n

\n<\/p><\/div>\n

<\/p>\n

\n\"Cynips
\n
\n<\/p>\n

Quercus petraea<\/em>, Belgium, East Flanders, Geraardsbergen, Overboelare-Planken @ Bart Uitterhaegen: as the galls grow older, the colour changes from reddish to dark purple<\/p>\n

\n<\/p><\/div>\n

<\/p>\n


\n<\/p>\n

gall<\/h3>\n

The sexual generation makes egg-shaped, velvety galls of about 2 mm on resting buds; initially they are red. Contrary to Cynips longiventris<\/a><\/em>, at the base of the gall remnants of bud scales are visible.<\/p>\n

<\/p>\n


\n<\/p>\n

host plants<\/h3>\n

Fagaceae, monophagous<\/p>\n

<\/p>\n

Quercus<\/a> frainetto, x hispanica, infectoria, petraea, pubescens, pyrenaica, robur.<\/p>\n


\n<\/p>\n

Rarely also Q. cerris<\/em>.<\/p>\n


\n<\/p>\n


\n<\/p>\n

distribution within Europe<\/a><\/h3>\n

PESI<\/a> (2024).<\/p>\n

<\/p>\n


\n<\/p>\n

synonyms<\/h3>\n

Dryophanta folii<\/em> Hartig, 1840; D. scutellaris<\/em> Olivier, 1781; D. flosculi<\/em> (Giraud, 1868); D. taschenbergi<\/em> (von Schlechtendal, 1870).<\/p>\n

<\/p>\n


\n<\/p>\n

notes<\/h3>\n

In the agamous generation there is a significant preference for the larger leaves (Giertych ao, 2013a).<\/p>\n

<\/p>\n

references<\/h3>\n

Abras, Fassotte, Chandelier & Cavelier (2008a), Andersen & Fjellberg (1977a), Askew (1961b), Azmaz (2015a), Azmaz & Katilmi\u015f (2017a), Bayrak (2019a), B\u00e9guinot (2002a,e,f,g,h, 2003a, 2006a,c, 2007b, 2012a), Bellmann (2012a), Blanes-Dalmau, Caballero-L\u00f3pez & Pujade-Villar (2017a), Cerasa (2015a), Chinery (2011a), Cogolludo (1921a), Coulianos & Holm\u00e5sen (1991a), Dauphin & Aniotsbehere (1997a), Demirel, Tataro\u011flu & Katilmi\u015f (2023a), Dietrich (2016a), Eady & Quinlan (1963a), Ecott (2012a), Fusu (2017a), Giertych, Jagodzi\u0144ski & Karolewski (2013a), G\u00f3mez, Hern\u00e1ndez Nieves, Garrido Torres, ao (2006a), Groom (2011a), Grosscurt (2025a), Guzicka, Karolewski & Giertych (2017a), Hellrigl (2009a, 2010a, 2012a), Hellrigl & Bodur (2015a), Houard (1908a), Ilie & Marinescu (2011a), Jankiewicz, Dyki, Machlatiska & Dubert (2017a), Karaca & Kat\u0131lm\u0131\u015f (2020a), Kat\u0131lm\u0131\u015f & K\u0131yak (2008a), Kemal & Ko\u00e7ak (2010a), Koll\u00e1r (2007a, 2011a), Koops (2013a), Kwast (2012a, 2014a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon, Schneider & Chevin (2003a), Lehmann & Hannover (2016a), Markovi\u0107 (2014a, 2015a), Melika (2006a, 2018a), Melika, Cs\u00f3ka & Pujade-Villar (2000a), Mete & Demirsoy (2012a), Nieves-Aldrey (2001a), Pellizzari (2010b), Popescu (2003a), Redfern & Shirley (2011a), Roques, Cleary, Matsiakh & Eschem (2017a), Roskam (2009a), Schimitschek (1939a), Tomasi (2003a, 2012a, 2014a), Williams (2010a).<\/p>","protected":false},"excerpt":{"rendered":"

Cynips quercusfolii Linnaeus, 1758 Quercus, agamous generation Quercus robur, Hungary, Kimle, 4.ix.2017 \u00a9 L\u00e1szl\u00f3 \u00c9rsek larva in opened gall Quercus robur, Belgium, prov. Hainaut, Comines, 6.viii.2019 \u00a9 Martin Windels galled lead, upper side gall at the underside; see note below two more galls Quercus robur, Bergen aan Zee, 2.ix.2012 Generally the galls remain attached to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":25840,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"parasite-species.php","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-25847","page","type-page","status-publish","hentry","category-parasite"],"_links":{"self":[{"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/pages\/25847","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/comments?post=25847"}],"version-history":[{"count":0,"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/pages\/25847\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/pages\/25840"}],"wp:attachment":[{"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/media?parent=25847"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/categories?post=25847"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/tags?post=25847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}