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Artichoke Gall

Andricus foecundatrix

Classification

Class
Insecta
Family
Cynipidae

Andricus foecundatrix (formerly Andricus fecundator) is a parthenogenetic gall wasp which lays a single egg within a leaf bud, using its ovipositor, to produce a gall known as an oak artichoke gall, oak hop gall, larch-cone gall or hop strobile. The gall develops as a chemically induced distortion of leaf axillary or terminal buds on pedunculate oak (Quercus robur) or sessile oak (Quercus petraea) trees. The larva lives inside a smaller hard casing inside the artichoke and this is released in autumn.

Distribution

Dick Belgers · CC BY
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Countries in the Picchu catalog
Netherlands · 6,122United Kingdom · 2,233Germany · 778France · 277Italy · 217Spain · 158Belgium · 49Luxembourg · 24Switzerland · 6