– 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. Confusion Species: Phyllonorycter schreberella (Shining Elm Leaf-miner); Phyllonorycter stettinensis (Lesser Alder Leaf-miner)
ID pointers: None at this time
Distribution: (Last record: 22 August 2025 at Norton Lees ) – Uncertain as so few records, all of which are of the leaf mines. Five records between 2008 – 2023
Leaf Mine at Norton Lees August 2025
*** Last updated on 23 August 2025 by TD ***
Last Recorded Year: 2025
Last Recorded By – Pete Mella
Last Recorded General Area – Norton Lees
IMAGES BELOW:
Coombs Dale – July 2018 – Andrew Watchorn© / Norton Lees – Pete Mella©
no images were found
Distribution Map for Phyllonorycter tristrigella
Found 23 records
↳ 5 from After 2025
↳ 1 from 2020 - 2024
↳ 17 from Before 2020
↳ 5 from After 2025
↳ 1 from 2020 - 2024
↳ 17 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 – Phyllonorycter tristrigella
⚠️ 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:
Phyllonorycter tristrigella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Phyllonorycter tristrigella
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Phyllonorycter tristrigella
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: Phyllonorycter tristrigella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Phyllonorycter tristrigella
AGR: 1.98% | Total % Change: 60%
CUSUM Analysis: Phyllonorycter tristrigella
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 16 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 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: Phyllonorycter tristrigella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Phyllonorycter tristrigella
Phyllonorycter tristrigella
( 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
Phyllonorycter tristrigella
Phyllonorycter tristrigella
( 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 - Phyllonorycter tristrigella – 23 records available
Listed by Year - descending - scroll across to see all table columns
| Taxon | Site Name | Tetrad | Year | Date | Count | Stage | Source |
|---|---|---|---|---|---|---|---|
| Phyllonorycter tristrigella | Jim Mart Nature Reserve | SK36S | 2025 | 01/09/2025 | 1 | mine | vc57_irecords_extract |
| Phyllonorycter tristrigella | DWT Wyver Lane | SK34P | 2025 | 06/08/2025 | 2 | mine (empty) | vc57_irecords_extract |
| Phyllonorycter tristrigella | DWT Wyver Lane | SK34P | 2025 | 13/08/2025 | 3 | mine (empty) | vc57_irecords_extract |
| Phyllonorycter tristrigella | Meersbrook Park | SK38M | 2025 | 22/08/2025 | 1 | mine | vc57_irecords_extract |
| Phyllonorycter tristrigella | Griffe Field Park, Littleover | SK33G | 2025 | 30/08/2025 | 1 | mine | vc57_irecords_extract |
| Phyllonorycter tristrigella | Burton upon Trent | SK32P | 2024 | 05/11/2024 | 1 | Mine | vc57_irecords_extract |
| Phyllonorycter tristrigella | Wilson | SK32X | 2019 | 13/09/2019 | 2 | Adult | vc57_irecords_extract |
| Phyllonorycter tristrigella | Grange Wood | SK21S | 2018 | 13/09/2018 | 1 | Mine | vc57_irecords_extract |
| Phyllonorycter tristrigella | Coombs Dale, Calver | SK27H | 2018 | 30/07/2018 | 1 | pre-adult | vc57_irecords_extract |
| Phyllonorycter tristrigella | Waggon Lane, Newhall, Swadlincote | SK22V | 2014 | 14/07/2014 | 1 | Larval Mine | vc57_danes_bc_data |
| Phyllonorycter tristrigella | Newhall (Waggon Lane), Swadlincote | SK22V | 2010 | 10/11/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Phyllonorycter tristrigella | Thorpe, Dovedale | SK15K | 2010 | 13/10/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Phyllonorycter tristrigella | Ashford in the Water | SK16Z | 2010 | 22/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Phyllonorycter tristrigella | Ashford in the Water | SK16Z | 2010 | 22/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Phyllonorycter tristrigella | Norbury | SK14G | 2009 | 01/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Phyllonorycter tristrigella | Stoney Middleton | SK27H | 2009 | 12/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Phyllonorycter tristrigella | Linacre | SK37L | 2009 | 13/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Phyllonorycter tristrigella | Rose End Meadows NR,Cromford | SK25Y | 2009 | 16/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Phyllonorycter tristrigella | Broomfield Hall, Morley, Derby | SK34V | 2008 | 08/11/2008 | 1 | Larval Mine | vc57_danes_bc_data |
| Phyllonorycter tristrigella | Calke Park | SK32L | 2008 | 25/10/2008 | 1 | Mine | vc57_irecords_extract |
| Phyllonorycter tristrigella | Calke Park,Ticknall | SK32R | 2008 | 25/10/2008 | 1 | Larval Mine | vc57_danes_bc_data |
| Phyllonorycter tristrigella | Hillclifflane, nr Idridgehay | SK24Y | 2002 | 02/11/2002 | 1 | Larval Mine | vc57_danes_bc_data |
| Phyllonorycter tristrigella | Abbotsholme School, Rocester | SK13E | 2001 | 04/10/2001 | 1 | Larval Mine | vc57_danes_bc_data |