Andricus quercuscalicis (Burgsdorf, 1783)

Hymenoptera, Cynipidae

development of the agamous generaration

Andricus quercuscalicis: gall on Quercus robur

gall, early August

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the gall, pulled out of the cupula

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the “stalk” of the gall has pushed itself between cupula and acorn

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the gall is attached to the cupula, next to the attachment of the acorn

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the gall chamber, still quite small, is located in the “stalk”.

Andricus quercuscalicis gall

other specimen, autumn aspect. The gall chamber has grown proportionally.

Andricus quercuscalicis gall

the acorn has been overgrown and aborted.

21/08/2015

mod 28.vi.2017