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White galls 2

Observed: 27th August 2012 By: flowerpainter
white galls 2
white galls 2 copy
Description:

small (c2mm) spiked white bodies on oak leaf.(Q robur) Some on topside, some u/s. Appeared to be attached to leaf when collected. By the time I got home, these two were raised up from the surface and supported in a cobweb, with a small greenish spider appearing to attend one of them.The other body has a small (emergent?) hole in the side.

Identifications
Species interactions

No interactions present.