Leaf-miner: CAT L – The leaf or a Photo required – 
– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Rare / Uncommon / Scarce 
– Leaf Miner
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required. ID pointers: A Leaf-miner – A narrow and long gallery that usually follows the veins of the leaf. Numerous mines can be located on each leaf. Frass is linear to start with becoming dispersed later. Favours Hazel (Corylus)
Distribution: (Last record: 11 October 2025 at Darley Park ) – National Status – Common and widely distributed – Derbyshire status thinly spread and scarce. Most records refer to Leaf Mines.
*** Last updated on 11 October 2025 by TD ***
Last Recorded Year: 2025
Last Recorded By – Andrew-John Shervill
Last Recorded General Area – Darley Park
Selected Images: Dave Evans – September 2024 & August 2022 – Wyver Lane, Belper.
Image Gallery
Distribution Map for Stigmella microtheriella
Found 48 records
↳ 13 from After 2025
↳ 16 from 2020 - 2024
↳ 19 from Before 2020
↳ 13 from After 2025
↳ 16 from 2020 - 2024
↳ 19 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 microtheriella
⚠️ 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 microtheriella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Stigmella microtheriella
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Stigmella microtheriella
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 microtheriella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Stigmella microtheriella
AGR: 8.73% | Total % Change: 646.2%
CUSUM Analysis: Stigmella microtheriella
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 13 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 2018, 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 microtheriella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Stigmella microtheriella
Stigmella microtheriella
( 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 microtheriella
Stigmella microtheriella
( 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 microtheriella – 48 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Staveley garden SYA | SK47H | 25/10/2025 | 50 | mine | vc57_irecords_extract |
| Darwin Forest | SK36C | 06/10/2025 | 11 | mine (empty) | vc57_irecords_extract |
| Darwin Forest | SK26X | 04/10/2025 | 4 | mine (empty) | vc57_irecords_extract |
| Elvaston Country Park | SK43B | 21/09/2025 | 1 | mine | vc57_irecords_extract |
| Sunnydale LNR | SK33G | 22/08/2025 | 3 | mine | vc57_irecords_extract |
| Ingleby Ave, Derby | SK33L | 22/08/2025 | 3 | mine | vc57_irecords_extract |
| Meersbrook Park | SK38M | 22/08/2025 | 1 | mine | vc57_irecords_extract |
| Graves Park (Chantreyland Meadow) | SK38K | 15/08/2025 | 1 | mine | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 13/08/2025 | 4 | mine (empty) | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 06/08/2025 | 4 | mine (empty) | vc57_irecords_extract |
| Gleadless Valley LNR | SK38R | 28/07/2025 | 1 | mine | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 23/07/2025 | 4 | mine (empty) | vc57_irecords_extract |
| Darwin Forest | SK36C | 01/07/2025 | 10 | mine (empty) | vc57_irecords_extract |
| Chancet wood | SK38L | 06/12/2024 | 1 | Adult | vc57_irecords_extract |
| Pottery Wood | SK32G | 05/11/2024 | 1 | Mine | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 30/10/2024 | 6 | mine (empty) | vc57_irecords_extract |
| Tom Wood, Charlesworth | SJ99W | 26/10/2024 | 1 | Larva | vc57_irecords_extract |
| River Derwent, Derby | SK33S | 21/09/2024 | 1 | mine | vc57_irecords_extract |
| River Derwent, Derby | SK33S | 21/09/2024 | 1 | mine | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 12/09/2024 | 12 | mine (tenant | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 04/09/2024 | 7 | mine (empty) | vc57_irecords_extract |
| Cromford Canal | SK35G | 18/08/2024 | 5 | mine (empty) | vc57_irecords_extract |
| Cromford Canal | SK35G | 17/08/2024 | 2 | mine (empty) | vc57_irecords_extract |
| Poppy Wood | SK32S | 22/11/2023 | 1 | Mine | 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 |
| Carver's Rocks | SK32G | 30/09/2023 | 1 | Mine | vc57_irecords_extract |
| Carver's Rocks | SK32H | 21/09/2023 | 1 | Mine | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 10/11/2021 | 20 | mine (empty) | vc57_irecords_extract |
| Bamford, Win Hill and Thornhill Trail | SK28B | 02/10/2018 | 1 | not recorded | vc57_irecords_extract |
| Grange Wood | SK21S | 13/09/2018 | 1 | Mine | vc57_irecords_extract |
| Burrs Wood, Cordwell Valley | SK37C | 01/11/2015 | 1 | mine (empty) | vc57_irecords_extract |
| Coton Wood, Coton in the Elms, Swadlincote | SK21M | 21/09/2014 | 1 | Larval Mine | vc57_danes_bc_data |
| Hartshorne Wood, Hartshorne, Swadlincote | SK32G | 13/08/2014 | 1 | Larval Mine | vc57_danes_bc_data |
| Millennium Meadow NR, Duffield | SK34L | 09/08/2014 | 1 | Larval Mine | vc57_danes_bc_data |
| Back Lane,Glapwell | SK46T | 26/05/2012 | 1 | Adult | vc57_danes_bc_data |
| Millers Dale | SK17G | 03/09/2011 | 1 | Larval Mine | vc57_danes_bc_data |
| Ashford in the Water | SK16Z | 22/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Ashford in the Water | SK16Z | 22/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Bamford | SK28B | 21/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Ladybower Resr | SK18U | 03/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Hopton Wood NR, Cromford | SK25T | 16/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Coombs Dale,Stoney Middleton | SK27H | 12/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Coombs Dale,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 |
| 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 |
| Cubley, nr Ashbourne | SK13U | 04/10/2001 | 1 | Larval Mine | vc57_danes_bc_data |