Andricus quercuscalicis
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Andricus quercuscalicis is a gall wasp species inducing knopper galls.
Andricus quercuscalicis Quercus robur 02
Galls (upper left and right) formed on acorns on the branch of a pedunculate (or English) oak tree by the parthenogenetic generation Andricus quercuscalicis.
A larva of Andricus quercuscalicis in a gall formed in Quercus robur
Gall wasp
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Gall wasps, also traditionally called gallflies, or cynipids, are hymenopterans of the family Cynipidae in the wasp superfamily Cynipoidea. Their common name comes from the galls they induce on plants
Andricus quercuscalicis
…Andricus quercuscalicis is a gall wasp species inducing knopper galls. Knopper galls develop as a chemically induced distortion of growing acorns on pedunculate oak (Quercus robur L.) trees…
Gall Wasp Cynipidae family, Leesylvania State Park, Woodbridge, Virginia
Diastrophus nebulosus on a raspberry gall
Cynips longiventris parthenogenetic generation gall