Hymenoptera: Cynipidae - gall wasp Diplolepis rosae Robin's Pincushion / Rose Bedeguar Gall Photographs on Rosa spp., Rose Hosts: Rosa canina, ferruginea, micrantha, rubiginosa, spinosissima Conspicuous gall covered in long, branched, wiry hairs, green becoming red when mature. Old galls are brown and woody. Each gall contains many chambers, each with a single larva that emerges as an adult in spring. Galls host a number of iniquilines including Periclistus brandtii (smaller, thicker-walled chambers). Mice and birds predate over-wintering galls Similar: Diplolepis mayri has shorter un-branched spines

Diplolepis rosae, Robin's Pincushion
Badbury Rings, Dorset. August and October 2017