Acari: Eriophyoidea - gall mite Epitrimerus gibbosus Photographs on Rubus fruticosus, Bramble Hosts: Rubus spp. A greyish-white erineum forming on the veins of either upper or lower side of leaves, sometimes with a bulge on the opposite side. Can also affect the stems, flowers and fruit.

Epitrimerus gibbosus
Lytchett Matravers, Dorset. September 2017