Fig 1
DESCRIPTION: The galls here are caused by a mite and reach a height of up to 2mm each.  They start with a greenish colour and eventually turn a deep wine red and finally brown.  The surface is uneven and the galls can be sometimes stalked.  On the underside is a small opening ringed by short hairs. DISTRIBUTION: Found thoughout the UK. HABITAT: Occasional on the leaves of Mugwort.

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