Leaf-miner: CAT L – The leaf or a Photo required – 
Larval Case: C1 – Distinctive Species – 
– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Generally Common / Widespread 
– Leaf Miner
– care required in the identification process, as confusion with similar species is likely – quality photographs required. Confusion Species: Stigmella tityrella
ID pointers: The mine is a sinuous gallery, with coiled frass in the central part of the gallery. The mine has the egg displaced from the midrib (central main vein of the leaf), unlike Stigmella tityrella, which has the egg on the underside against the midrib. The mine in the photograph is shown on Fagus (Beech) – Adults of overall bronzy-brown in colour with a central silvery patch in the fascia.
Distribution: National Status – Fairly common, leaf mines are easily located on beech – Derbyshire status is likely to be locally common in Beech woodland – Leaf mine photographs from Belper and Staunton Harold Reservoir.
*** Last updated on 25 October 2025 by TD ***
Blue-coded] moths are not stored on the website at this current time. Selected Images: Dave Evans – September 17th 2021 – Wyver Lane, Belper./ Staunton Harold Reservoir 30/9/2025 & 24/10/2025 – Tony Davison©
Image Gallery
Distribution Map for Stigmella hemargyrella
Found 47 records
↳ 9 from After 2025
↳ 15 from 2020 - 2024
↳ 23 from Before 2020
↳ 9 from After 2025
↳ 15 from 2020 - 2024
↳ 23 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.
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.
NBN Atlas UK Distribution for – Stigmella hemargyrella
⚠️ 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.
Monthly Records By Year:
Stigmella hemargyrella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Stigmella hemargyrella
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Stigmella hemargyrella
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 hemargyrella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Stigmella hemargyrella
AGR: 4.35% | Total % Change: 177.8%
CUSUM Analysis: Stigmella hemargyrella
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 15 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 9 (September) 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 2023, 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 hemargyrella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Stigmella hemargyrella
Stigmella hemargyrella
( 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 hemargyrella
Stigmella hemargyrella
( 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 hemargyrella – 47 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Darwin Forest | SK36C | 06/10/2025 | 4 | mine (tenant | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 02/09/2025 | 8 | mine (empty) | vc57_irecords_extract |
| Shillito Wood | SK27X | 28/08/2025 | 5 | mine (empty) | vc57_irecords_extract |
| Shallcross Wood, Taxal | SK07E | 26/08/2025 | 1 | mine | vc57_irecords_extract |
| Graves Park, Sheffield | SK38L | 26/08/2025 | 1 | mine | vc57_irecords_extract |
| Norton Lees, Sheffield | SK38L | 15/08/2025 | 1 | adult | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 13/08/2025 | 3 | mine (empty) | vc57_irecords_extract |
| Gleadless Valley LNR | SK38R | 28/07/2025 | 1 | mine | vc57_irecords_extract |
| Graves Park | SK38K | 04/07/2025 | 1 | mine | vc57_irecords_extract |
| Crich Lane Woods | SK34P | 19/10/2024 | 15 | mine (empty) | vc57_irecords_extract |
| Monsall Trail | SK17L | 14/10/2024 | 1 | mine (empty) | vc57_irecords_extract |
| Ashwood Park, Buxton | SK07R | 12/10/2024 | 1 | mine | vc57_irecords_extract |
| Darwin Forest | SK36C | 02/10/2024 | 15 | mine (empty) | vc57_irecords_extract |
| Cote Heath Woods | SK07R | 14/09/2024 | 1 | mine | vc57_irecords_extract |
| Foxlow Wood, Buxton | SK07R | 13/09/2024 | 3 | mine | vc57_irecords_extract |
| Sherbrook Wood, Buxton | SK07R | 13/09/2024 | 1 | Adult | vc57_irecords_extract |
| Cote Heath Wood | SK07L | 10/09/2024 | 1 | mine | vc57_irecords_extract |
| Foxlow Wood, Buxton | SK07R | 19/07/2024 | 1 | Adult | vc57_irecords_extract |
| Calke Park | SK32R | 07/10/2023 | 1 | Mine | vc57_irecords_extract |
| Calke Park | SK32R | 01/10/2023 | 1 | Mine | vc57_irecords_extract |
| Hogshaw Wood | SK07S | 06/09/2023 | 1 | mine | vc57_irecords_extract |
| Temple Fields, Buxton | SK07L | 03/09/2023 | 1 | Larva | vc57_irecords_extract |
| Fairholmes | SK18U | 11/02/2023 | 1 | mine | vc57_irecords_extract |
| Ashwood Park, Buxton | SK07R | 25/07/2020 | 1 | Larva | vc57_irecords_extract |
| Grange Wood | SK21S | 13/09/2018 | 1 | Mine | vc57_irecords_extract |
| Millers Dale | SK17G | 03/09/2011 | 1 | Larval Mine | vc57_danes_bc_data |
| Thorpe, Dovedale | SK15K | 13/10/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Kirk Dale, Ashford in the Water | SK16Z | 22/09/2010 | 1 | Larva | vc57_irecords_extract |
| Ashford in the Water | SK16Z | 22/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Ladybower Resr | SK18U | 03/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Howden Resr | SK19S | 25/08/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Howden Resr | SK19L | 25/08/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Padley Gorge, Nether Padley | SK27P | 19/08/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Cromford | SK25Y | 16/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Linacre Wood | SK37G | 13/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Stoney Middleton | SK27H | 12/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Hope | SK18R | 07/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Derbyshire, UK | SK14G | 02/10/2009 | 1 | Larva | vc57_irecords_extract |
| Norbury | SK14G | 01/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Castleton | SK18L | 10/09/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Calke Park | SK32L | 25/10/2008 | 1 | Mine | vc57_irecords_extract |
| Calke Park,Ticknall | SK32R | 25/10/2008 | 1 | Larval Mine | vc57_danes_bc_data |
| Oaks Barn Cottage, Monyash Rd, Over Haddon, Bakewell | SK26D | 19/09/2008 | 1 | Larval Mine | vc57_danes_bc_data |
| Ogston Carr Wood,nr Ogston Res | SK35U | 12/07/2006 | 1 | Larval Mine | vc57_danes_bc_data |
| Hillclifflane, nr Idridgehay | SK24Y | 02/11/2002 | 1 | Larval Mine | vc57_danes_bc_data |
| Brackley Gate, nr Coxbench | SK34W | 03/11/2001 | 1 | Larval Mine | vc57_danes_bc_data |
| Abbotsholme School, Rocester | SK13E | 04/10/2001 | 1 | Larval Mine | vc57_danes_bc_data |