Eriophyes arianus

Description

The midge Eriophyes arianus causes galls to form on the leaves of Sorbus aria.  The galls take the form of slightly rounded pustules raised on both surfaces of the leaf, up to 2 mm across, sometimes coalescing, and with the opening on either the upper or lower leaf surface. The galls are light green or yellowish at first becoming brown later.  It should be added that that taxonomy of the gall mites that cause this type of galls on the genus Sorbus is not yet fully stabilised.

Identification difficulty

Gall  

Recording advice

Good photographs required of upper and lower leaf surfaces showing the galls. Please state the host species when submitting your record.

Habitat

Galls may be found wherever the host species occurs.

When to see it

Galls may be found when the host species is in leaf.

UK Status

Status in Britain is difficult to determine due to lack of records.

VC55 Status

Status in Leicestershire and Rutland not known.

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Leicestershire & Rutland Map

MAP KEY:

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

UK Map