Common Spangle Gall

Macro Art
Common Spangle Gall by Gill Peachey

Image details - Common Spangle Gall

Photographer: Gill Peachey (see profile)
Competition: Competition 10
Category: Macro Art
Location: Surrey, England, United Kingdom


If you've ever looked at the underside of an oak leaf, you may have found these odd looking structures that are a few millimetres across. They are common spangle galls caused by a small wasp (Neuroterus quercusbaccarum ). The wasp lays an egg on the leaf and as the egg hatches the larva tricks the oak leaf into producing this structure for it to live in and feed on. In the autumn the gall drops off the leaf and the wasp continues its bizarre life cycle.


Commended - Macro Art