The Cynipid Gall Wasp (Neuroterus quercusbaccarum) is an insect in the Cynipidae family of gall wasps.
The Cynipid Gall Wasp is found throughout Europe, Asia, and North Africa in the Northern Hemisphere.
In June, the female wasp lays eggs on leaves, usually the underside. She produces a hormone – or the egg secretes a hormone – that stimulates the growth of Common Spangle Galls – red lumps – around the eggs.
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