Stigmella aceris

Alternative names
Scarce Maple Pigmy

Wingspan 3.7 to 4.7mm.

Identification difficulty

Adult Leafmine

ID guidance

Leafmine occurs on Field Maple (and sometimes on Norway Maple).


Found in woodland, gardens, hedgerows and parkland in areas where Field Maple is present.

When to see it

Bivoltine May-Jun and again in August.

Life History

The larvae mine the leaves of Field Maple from end of June-early July, then in August-early September.

UK Status

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.

VC55 Status

Not recorded in VC55 until 4th October 2018 (from Geeston). It is increasingly well recorded in Leicestershire and Rutland in recent years, usually from the leafmines on Field Maple and Norway Maole.

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Leicestershire & Rutland Map


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

UK Map