Bee / Hover-fly collecting campion fluff

Bee / Hover-fly collecting campion fluff

Observation - Bee / Hover-fly collecting campion fluff . Description: Two of these kept coming back to the garden all afternoon, gnawing at the furry stems and buds of a red rose campion plant and then flying of with balls of the fluff. Not sure if they're bees or hover-flies.

Two of these kept coming back to the garden all afternoon, gnawing at the furry stems and buds of a red rose campion plant and then flying of with balls of the fluff. Not sure if they're bees or hover-flies.