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Gall Wasp
Cynipidae
46.2441, 6.10869
Field Notes
Description:
These brown marbles are galls, about 1.2 to 2 cm in diameter, feeling like a light wood on touch. Cut in half (pic N° 3), they resemble some sort of berries, presenting decaying juicy flesh inside, with a tunnel the larvae used to get out clearly outlined in darkest shades. When fresh and before larvae develops and leaves the gall, these structures grow directly on a leaf, and are bright orange to red, with pale flesh inside - for a picture of fresh galls please see one of my previous spottings here:
https://www.projectnoah.org/spottings/1182544832
Habitat:
Found on a forest floor, among decaying leaves, of a lowland deciduous forest (mainly oak and beech) in Geneva lake valley (pic ° 4).
Reference Links:
Gall wasp - Wikipedia
Species ID Suggestions
Spotted for Missions
Photographed
PublishedJanuary 8, 2022
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