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
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.Confusion Species: Ectoedemia minimella; Ectoedemia atricollis
ID pointers: Very similar to Ectoedemia atricollis; appears to be slightly paler in colour tones. The adults are quite large for a Nepticulid, and have blackish forewings with a hint of violet, and contrasting whitish central band and eye-caps. The males have black heads, those of the female orange or yellow.
Distribution: (Last record: 31 October 2024 at Grange Wood ) – Uncertain due to insufficient data – Leaf Mine at King’s Newton 2024, Grange Wood 2018 and Calke October 2008.
*** Last updated on 12 October 2025 by TD ***
Last Recorded Year: 2024
Last Recorded By – Graham Finch
Last Recorded General Area – Grange Wood
Selected Images:
Kings Newton – 28/10/2024 – Tom Shields© / Buxton – Steve Orridge©
Image Gallery
Distribution Map for Ectoedemia occultella
Found 19 records
↳ 1 from After 2025
↳ 1 from 2020 - 2024
↳ 17 from Before 2020
↳ 1 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.
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 – Ectoedemia occultella
⚠️ 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:
Ectoedemia occultella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Ectoedemia occultella
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Ectoedemia occultella
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: Ectoedemia occultella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Ectoedemia occultella
AGR: 21.15% | Total % Change: 9900%
CUSUM Analysis: Ectoedemia occultella
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 18 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 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: Ectoedemia occultella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Ectoedemia occultella
Ectoedemia occultella
( 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
Ectoedemia occultella
Ectoedemia occultella
( 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 - Ectoedemia occultella – 19 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Markham Vale, Hall Lane Pond | SK47H | 05/10/2025 | 100 | mine | vc57_irecords_extract |
| King's Newton | SK32Y | 28/10/2024 | 10 | mine | vc57_irecords_extract |
| Grange Wood | SK21S | 13/09/2018 | 1 | Mine | vc57_irecords_extract |
| River Derwent, Hope Valley, England, GB | SK18U | 16/10/2011 | 1 | Larva | vc57_irecords_extract |
| Millers Dale | SK17G | 03/09/2011 | 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 |
| Slippery Stones,Upper Derwent | 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 |
| Linacre Wood | SK37G | 13/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Hope | SK18R | 07/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Norbury | 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 |
| Brackley Gate, nr Coxbench | SK34W | 03/11/2001 | 1 | Larval Mine | vc57_danes_bc_data |
| Cubley, nr Ashbourne | SK13U | 04/10/2001 | 1 | Larval Mine | vc57_danes_bc_data |