Aceria macrochela
Description
Aceria macrochela is a gall mite that causes solitary galls to form on the leaves of Field Maple. The galls are seen more often than the mite that causes them. The gall is rounded, 2 to 4 mm across, with hard walls often in angle between veins; inner surface with many-celled hairs.
Identification difficulty
Adult 
Gall 
Habitat
On the leaves of Field Maple.
When to see it
Galls visible in summer.
UK Status
Frequent and widespread in Britain.
VC55 Status
Fairly frequent in Leicestershire and Rutland.
Graham CalowSapcote21 July 2012on Field Maple - upper surface
Graham CalowFosse Meadows, Sharnford15 August 2014galls on Field Maple
Graham CalowSapcote26 September 2013on Field Maple
Graham CalowSapcote21 July 2012on Field Maple - underside
Graham CalowSapcote29 June 2013gall on Field Maple
David NichollsSheet Hedges Wood02 May 2014
David NichollsCounty Hall23 September 2014
Leicestershire & Rutland Map
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UK Map
Peter SmithCropston02 August 2015Galls on field maple
Graham CalowSapcote21 July 2012on Field Maple - upper surface
Graham CalowBurbage Common and Woods10 October 2012galls on Field Maple - underside
Graham CalowBurbage Common and Woods10 October 2012galls on Field Maple
David NichollsSheet Hedges Wood02 May 2014
Mike HiggottCounty Hall24 June 2015
steven lewiswelby26 September 2015
Craig MabbettLutterworth Country Park Lutterworth03 October 2015
