Leaf-miner: CAT L – The leaf or a Photo required – 
– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Uncertain/Unknown – Insufficient Data 
– Leaf Miner
– care required in the identification process, as confusion with similar species is likely – quality photographs required. ID pointers: A long winding, contorted mine, often doubling back, with variable frass, which quite often follows the serrated edge of the leaf of Sorbus sp.
Distribution: (Last record: 1 September 2025 at Glossop ) – National Status – Widespread but localised distribution. Derbyshire status unknown, but suspected to be common where the food plant (Rowan- Sorbus aucuparia)
*** Last updated on 2 October 2025 by RP ***
Last Recorded Year: 2025
Last Recorded By – Christian Heinzen
Last Recorded General Area – Glossop
Selected Images: Dave Evans – September 2024 & September 2022 – Wyver Lane, Belper. / Glossop Sept 2025 – Christian Heintzen©
Image Gallery
Distribution Map for Stigmella nylandriella
Found 14 records
↳ 4 from After 2025
↳ 3 from 2020 - 2024
↳ 7 from Before 2020
↳ 4 from After 2025
↳ 3 from 2020 - 2024
↳ 7 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 nylandriella
⚠️ 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 nylandriella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Stigmella nylandriella
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Stigmella nylandriella
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 nylandriella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Stigmella nylandriella
AGR: 4.61% | Total % Change: 125%
CUSUM Analysis: Stigmella nylandriella
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 21 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 8 (August) 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 nylandriella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Stigmella nylandriella
Stigmella nylandriella
( 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 nylandriella
Stigmella nylandriella
( 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 nylandriella – 14 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| DWT Wyver Lane | SK34P | 02/09/2025 | 3 | mine (empty) | vc57_irecords_extract |
| Markham Vale South Tip | SK47K | 30/09/2025 | 3 | mine | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 06/08/2025 | 2 | mine (empty) | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 13/08/2025 | 1 | mine (empty) | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 30/10/2024 | 1 | mine (empty) | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 04/09/2024 | 2 | mine (empty) | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 12/09/2024 | 1 | mine (empty) | vc57_irecords_extract |
| 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 |
| Padley Gorge, Nether Padley | SK27P | 19/08/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Upper Wood, Howden Resr | SK19R | 25/08/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Slippery Stones,Upper Derwent | SK19S | 25/08/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Linacre | SK37G | 13/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Mousley Bottom, New Mills | SJ98X | 03/09/2007 | 1 | Larval Mine | vc57_danes_bc_data |