Hymenoptera: Cynipidae - gall wasp Cynips divisa Red Pea Gall Agamic generation (Pea Gall) - photographs on Quercus, Oak Hosts: Agamic and sexual generations on Q. frainetto, petraea, pubescens, robur Agamic - occurs on underside of leaves. A hard, thick-walled gall with small inner chamber. Iniquiline larvae often present in the gall walls Sexual - either small, spindle-shaped galls attached to end of a vein at the leaf margin or warty catkin galls to 6mm long, barrel shaped.

Cynips divisa, Pea Gall Wasp
Broadstone, Dorset. October 2017