These galls are common infestations on the underside of Oak leaves in late summer. In autumn the gall falls off and Cynipid Gall Wasp emerge in spring

---

These galls are common infestations on the underside of Oak leaves in late summer. In autumn the gall falls off and the parasitic Cynipid Gall Wasp emerges the following spring

---

Size: 5184px × 3456px
Location: Scarborough, UK
Photo credit: © Nick Greaves / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: abdomen, agamic, antennae, apocrita, arthropoda, autumn, balance, barbless, behaviour, blister, brown, button, chitin, common, cup, cynipidae, easily, entomology, forests, gall, generations, grub, grubs, head, hymenoptera, infection, infestation, insect, invertebrate, larvae, leaves, mass, metamorphosis, nature, neuroterus, numerous, numisnalis, oak, ovipositor, parasite, parthenogenic, pheromones, pointed, prolific, recognised, scabs, shape, silk, silky, solitary, spangle, study, thorax, threads, tiny, wasp, widespread, wing, woodlands