4.012 BF102  –  Nepticulidae –  Nepticulinae – Stigmella aceris – Maple Dot – (Frey, 1857) Adult Micro:  CAT 4 – Gen. Det. Required – Gen-Det-Reqd       Leaf-miner:  CAT L – The leaf or a Photo required – reared and possibly dissected       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Blue –  Generally Common / Widespread        purple – Leaf Miner
Taxonomy:   Micro   >>  Nepticulidae  >> Nepticulinae
** Identification write-up required **
Other Name/s: Scarce Maple Pigmy
ID Difficulty:  Red – difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.
Confusion Species: Stigmella speciosa / Stigmella crataegella
ID pointers: No information available at this time
Distribution:  Widespread and increasing
Flight Period: May /  July /  August /  Mine Period: June /  July /  August /  September /   – The larvae mine the leaves of Field Maple and Norway Maple from end of June-early July, August-early September. Photographed: Yes –  Photographed By: Pete Mella  © All Rights Reserved
*** Last updated on 23 August 2025 by TD ***
Wingspan: 4mm
Food Plant: Filed Maple – Norway Maple
Recorded dates for Common [Blue code Blue-coded] moths are not stored on the website at this current time.

IMAGES BELOW:  

Norton Lees (August 2025) Pete Mella©

no images were found

Distribution Map for Stigmella aceris

Found 16 records
    ↳ 7 from After 2025
    ↳ 9 from 2020 - 2024
    ↳ 0 from Before 2020

If the Map Layers function fails, just refresh the page and it should be OK after. Use the +- zoom on the top left, or on a tablet, use two fingers to zoom. Remember, the last layer you ticked is the one which displays the popup information - they sit on top of each other - de-select then re-select, to see the popup values.

******* Choose ONLY one at a time, of either Monad, Tetrad or Hectad Distribution - each has it's own set of data. Also, the distribution maps cover ALL recorded data. *******

Bedrock Geology ** indirectly affects moth distribution by influencing the type of habitat and food plants available in an area. In turn, this may affect the types of moths that can thrive, or where they can most likely be found.

Land-cover * shows the variety of land-cover within the VC57 area, based on the CORINE (Coordination of Information on the Environment) forty-four thematic classes of land-cover. This will show, to a greater or lesser degree, the number and variety of moths found in different land-cover types. The UK continues to operate within the Copernicus programme, with the UK Centre for Ecology & Hydrology (UKCEH) providing Corine Land Cover (CLC) datasets for the UK and its territories.


NBN Atlas UK Distribution for – Stigmella aceris

⚠️ Please wait for the map to load fully – do not click the link shown.


Note – the NBN Atlas datasets are listed in the map below and vary in their currency (uptodateness) – however, the map does give a general indication of the moth's distribution across the UK.

Visit NBN Site


Monthly Records By Year: Stigmella aceris
( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Stigmella aceris
( data is based on 'Adult' stage records only. )


First/Last Recorded Dates: Stigmella aceris
Adult-only & Anything [Larvae, Pupae, Adult, Mines]

Shading shows moth presence between dates

Click the colour discs below to Select/De-select as Required

Recordings By Year: Stigmella aceris
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Stigmella aceris
AGR: 146.62%   |   Total % Change: 1400%


CUSUM Analysis: Stigmella aceris
About this chart: CUSUM (Cumulative Sum) charts track long-term trends in moth populations [ filtered by 'Adult' and 'Mine' life stages ] by showing whether each year’s counts are above or below the historical average. Even small shifts build up over time, making trends of growth, stability, or decline easier to see. CUSUM highlights trend-consistency — asking: “Across the years, have moth counts mostly stayed above or below average?”
The data sample has 22 gap year/s here (zero records) between 2000 and 2025. The moth may have been present in those gap years, but no data was available. Too many year-gaps may exaggerate or skew the chart.

Counts for the current year (2025) are pro-rated based on data available up to month 7 (July) to provide a full-year equivalent.

Purple line rises = years better than average; falls = years worse than average.
Peak (best year) Trough (worst year) Growth periods Decline periods
Population peaked around 2025, reaching above average levels. The lowest population point occurred near 2024, showing a significant decline.

What the Y-axis "Cumulative Deviation" means: Cumulative Deviation shows the running total of how each year’s moth population count differs from the long-term average. i

Hectad (10kmx10km) Coverage: Stigmella aceris
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Stigmella aceris
( data includes Adult Stage only )

Flight Period chart – the grey hatched area above, which can cross one or more months, pictorially represents the best guess we have for this moth's flight periods [month/s]. The coloured lines represent the actual months seen in flight, from site observation records received between 2020-2025.

Mine Periods – Indicative –vs– Recorded Data
Stigmella aceris
( data includes both Larvae and Adult Stages )

Mine Period chart – the grey hatched area above, which can cross one or more months, pictorially represents the best guess we have for this moth's mine periods [month/s]. The coloured lines represent the actual months seen mining, from site observation records received between 2020-2025.

Records Behind the Map and Charts - Stigmella aceris – 16 records available

Listed by Year - descending - scroll across to see all table columns

TaxonSite NameTetradYearDateCountStageSource
Stigmella acerisDWT Wyver LaneSK34P202509/09/20251mine (empty)vc57_irecords_extract
Stigmella acerisNorton Lees (Brindley Estate)SK38L202515/08/20251minevc57_irecords_extract
Stigmella acerisGraves Park (Chantreyland Meadow)SK38K202515/08/20251Adultvc57_irecords_extract
Stigmella acerisDWT Wyver LaneSK34P202520/08/20251mine (empty)vc57_irecords_extract
Stigmella acerisSunnydale LNR, LittleoverSK33G202521/08/202550minevc57_irecords_extract
Stigmella acerisIngleby Ave, DerbySK33L202522/08/202550minevc57_irecords_extract
Stigmella acerisMeersbrook ParkSK38M202522/08/20251minevc57_irecords_extract
Stigmella acerisAlvaston Park, DerbySK33S202421/09/20241minevc57_irecords_extract
Stigmella acerisRiver Derwent, DerbySK33S202421/09/20241minevc57_irecords_extract
Stigmella acerisSpring LakesSK53A202415/08/20241minevc57_irecords_extract
Stigmella acerisPoppy WoodSK32S202322/11/20231Minevc57_irecords_extract
Stigmella acerisCalke ParkSK32R202301/10/20231Minevc57_irecords_extract
Stigmella acerisCarver's RocksSK32H202321/09/20231Minevc57_irecords_extract
Stigmella acerisSpringwater LakesSK53B202319/08/20231minevc57_irecords_extract
Stigmella acerisRosliston Forest CentreSK21N202215/10/20221othervc57_irecords_extract
Stigmella acerisAllestree ParkSK34K202225/09/20221Minevc57_irecords_extract

Scroll to Top