Acalitus stenaspis

Alternative names
Aceria stenaspis

Acalitus stenaspis is a mite that causes a leaf roll gall to form on beech leaves. The gall is a tight upward marginal roll that extends along the leaf edge. This roll is lined with hairs and contains mites in summer. The galls are seen more often than the mite.

Identification difficulty

Adult Gall


On the leaves of Beech.

When to see it

Late spring and summer.

UK Status

Widespread and fairly frequent in Britain.

VC55 Status

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