Aceria eriobia

Alternative names
Aceria macrocheluserinea 

The gall mite Aceria eriobia causes a felt like galling of the underside of the leaves of Field Maple. It appears white at first before turning red and finally brown. The dense hairs shelter numerous mites. The gall is seen more easily than the mite.

Identification difficulty

Adult Gall


Anywhere that Field Maple grows.

When to see it

The gall can be seen in Late summer until the leaves of the host plant fall.

UK Status

Thought to be widespread and fairly frequent in Britain.

VC55 Status

Thought to be fairly frequent in Leicestershire and Rutland.

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Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map