Hymenoptera: Cynipidae - gall wasp Neuroterus numismalis Silk button spangle gall Agamic (Silk Button Gall) and sexual generations - on Quercus, Oak Hosts: Agamic generation on Q. cerris, frainetto, petraea, pubescens, robur, rubra Sexual generation on Quercus cerris, infectoria, petraea, pubescens, robur

Neuroterus numismalis, Silk button spangle gall
Badbury Rings and Corfe Mullen, Dorset. August and October 2017