Andricus quercusradicis Hymenoptera: Cynipidae - gall wasp
Andricus quercusradicis

Agamic generation. Identity of adults uncertain

Hosts:
Agamic on Quercus faginea, petraea, pyrenaica, robur
Sexual on Quercus cerris, also Q. faginea, petraea, pyrenaica, robur

Agamic - irregularly shaped gall to 5cm, the many chambers each with a single larva. Occurs on shallow or exposed roots and is initially soft, becoming hard and woody.

Sexual - swelling in petiole or midrib with single, round gall chamber. More obvious swelling when several galls coalesce.
Adult needs rearing to separate from identical gall of A. testaceipes


Andricus quercusradicis

Andricus quercusradicis

Andricus quercusradicis

Andricus quercusradicis
Andricus quercusradicis
Kingston Lacy and Randalls Hill, Dorset. February and March 2018

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