Hymenoptera: Eurytomidae - gall wasp Tetramesa hyalipennis Photographs on Elytrigia juncea, Sand Couch Hosts: Elymus caninus, Elytrigia intermedi, juncea, repens Galls are more robust on Elytrigia juncea than on E. repens

Tetramesa hyalipennis
Sandbanks, Dorset. December 2014