![](http://www.alamy.com/thumbs/6/8B16FE58-7196-4998-816D-9C5CE92D75C9/2GMP608.jpg)
Cynips quercusfolii known as gall wasp, round ball gall underside of common oak leaf Quercus robur. Inside is bug larva. Autumn day.
Size: 5670px × 4044px
Photo credit: © FotoHelin / Alamy / Afripics
License: Royalty Free
Model Released: No
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