Aceria pseudoplatani
Description
Aceria pseudoplatani is a gall mite that causes a gall to form on the leaves of Sycamore. The upper surface of the gall is usually distinct and yellowish, with or without a bulge; the underside is white or cream when fresh, browning with age. The gall is seen more frequently than the mite that causes it.
Identification difficulty
Adult 
Gall 
Habitat
On the leaves of Sycamore.
When to see it
Summer when the leaves are present on Sycamore.
UK Status
Widespread and quite common in Britain.
VC55 Status
Fairly frequent in Leicestershire and Rutland.
Graham CalowSapcote21 July 2012on Sycamore - upper surface
Graham CalowSapcote21 July 2012on Sycamore - upper surface
Graham CalowSapcote21 July 2012on Sycamore - underside
Graham CalowSapcote14 May 2014on Sycamore
Graham CalowSapcote14 May 2014on Sycamore - underside of leaf
Graham CalowSapcote, Old Fosse near Leicester Road Lay-by30 October 2019galls on Sycamore
Graham CalowSapcote, Old Fosse near Leicester Road Lay-by30 October 2019galls on Sycamore
Leicestershire & Rutland Map
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MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015
UK Map
Alan SemperHarby, churchyard27 August 2013
Alan SemperHarby, churchyard27 August 2013
Alan SemperBrockshill Country Park06 September 2014Sycamore
Alan SemperBrockshill Country Park06 September 2014Sycamore
sueBagworth, field edge18 June 2018
David NichollsNewtown Linford15 September 2018
