Aculus tetanothrix is a mite that causes rounded, sometimes reddened galls to form on the leaves of willows, particularly White Willow. The galls are seen more often than their causer.
Wherever White Willow is found.
Summer and autumn.
Thought to be widespread and fairly common where White Willow occurs.
Status in Leicestershire and Rutland not known.
Leicestershire & Rutland Map
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Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015