Stigmella aceris
Wingspan 3.7 to 4.7mm.
Adult 
Leafmine 
Leafmine occurs on Field Maple (and sometimes on Norway Maple). http://www.leafmines.co.uk/html/Lepidoptera/S.aceris.htm
Found in woodland, gardens, hedgerows and parkland in areas where Field Maple is present.
Bivoltine May-Jun and again in August.
The larvae mine the leaves of Field Maple from end of June-early July, then in August-early September.
Formerly a very rare in Britain (as recently as the 1980s) it is now becoming more frequent and has reached the English Midlands. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as local.
Not recorded in VC55 until 4th October 2018 (from Geeston) but was found again at Willowbrook Park on 8th October 2018 and has since been recorded in our area fairly frequently from leafmines on Field Maple.
Peter SmithEllis Meadows16 October 2018leafmine on Field Maple
Graham CalowSapcote, Donkey Lane09 October 2019leafmine on Field Maple
Mark SkevingtonWhistle Way, Narborough13 September 2020tenanted leafmine on Field Maple
Graham CalowSapcote, Donkey Lane09 October 2019leafmine on Field Maple
Saharima RoenischLeicester, Clarendon Park Road05 August 2019
sueGlenfield, County Hall02 August 2019
Graham CalowLeire, Station Lane (track)19 October 2020leafmine on Norway Maple
Graham CalowLeire, Station Lane (track)19 October 2020leafmine on Norway Maple
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
Adrian RussellWillowbrook Park08 October 2018
Graham CalowSapcote, Land behind William Spencer Ave16 September 2020leafmine on Field Maple
Graham CalowStoney Stanton, Highgate Lodge Farm open access land03 September 2020leafmine on Field Maple
Graham CalowStoney Stanton, Highgate Lodge Farm open access land03 September 2020leafmine on Field Maple
Adrian RussellWillowbrook Park08 October 2018
Peter SmithEllis Meadows16 October 2018
Peter SmithEllis Meadows16 October 2018
Saharima RoenischEvington Park11 November 2018
Graham CalowStoney Stanton, Highgate Lodge Farm open access land03 September 2020leafmine on Field Maple
Saharima RoenischLeicester Welford Road Cemetery13 September 2020
Saharima RoenischLeicester, The Leicestershire Golf Club07 August 2019
