![](http://www.alamy.com/thumbs/6/BB1678EF-5657-484E-9BCB-97E830937AA1/2GMP611.jpg)
Cynips quercusfolii known as gall wasp, round ball gall underside of common oak leaf Quercus robur. Inside is bug larva. Autumn day.
Size: 5501px × 3653px
Photo credit: © FotoHelin / Alamy / Afripics
License: Royalty Free
Model Released: No
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