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– Generally Common / Widespread 
– Leaf Miner
– care required in the identification process, as confusion with similar species is likely – quality photographs required. Confusion Species: Incurvaria pectinea
ID pointers: Unusual amongst the micros, the male has feathered like antennae. The head is orange-yellow, with forewing a dark brown, sometimes tinged purplish, with a distinct triangular whitish spot, half way along the dorsum, and a similar smaller one at the tornus.
Distribution: Fairly common across the British Isles. Derbyshire status unknown, but likely to be locally common.
General Comment: None Mine Period Additional: May & June – mines are very similar to I.pectinea
Mine ID Difficulty: Not Recorded
Mine Type/s: Not Recorded
Mine Feeding Method/s: Not Recorded
Mine Comment: None.
*** Last updated on 2 October 2025 by RP ***
Blue-coded] moths are not stored on the website at this current time. Selected Images: Will Soar – Kings Newton, Derbyshire
Image Gallery
No gallery images found for this moth.
Distribution Map for Incurvaria masculella
Found 30 records
↳ 0 from After 2025
↳ 12 from 2020 - 2024
↳ 18 from Before 2020
↳ 0 from After 2025
↳ 12 from 2020 - 2024
↳ 18 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 – Incurvaria masculella
⚠️ 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:
Incurvaria masculella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Incurvaria masculella
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Incurvaria masculella
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: Incurvaria masculella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Incurvaria masculella
AGR: -1.11% | Total % Change: -20%
CUSUM Analysis: Incurvaria masculella
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 2004, 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: Incurvaria masculella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Incurvaria masculella
Incurvaria masculella
( 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
Incurvaria masculella
Incurvaria masculella
( 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 - Incurvaria masculella – 30 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Allestree, Derby | SK33P | 12/05/2024 | 2 | adult | vc57_irecords_extract |
| Derbyshire Wild Life Trust Long Clough | SK09G | 10/05/2024 | 1 | adult | vc57_irecords_extract |
| Sandiacre | SK43T | 03/05/2024 | 1 | adult | vc57_irecords_extract |
| Ninelands Road | SK28F | 22/05/2023 | 1 | adult | vc57_irecords_extract |
| Havercroft Road | SK38L | 07/05/2023 | 1 | Adult | vc57_irecords_extract |
| Findern Garden | SK33A | 29/04/2023 | 1 | Adult | vc57_irecords_extract |
| Chinley | SK08G | 14/05/2022 | 1 | adult | vc57_irecords_extract |
| Birch Vale | SK08I | 01/06/2021 | 1 | Adult | vc57_irecords_extract |
| Belper | SK34U | 28/05/2021 | 1 | adult | vc57_irecords_extract |
| Birch Vale | SK08I | 10/05/2021 | 1 | Adult | vc57_irecords_extract |
| Birch Vale | SK08I | 16/05/2020 | 1 | adult | vc57_irecords_extract |
| Birch Vale | SK08I | 09/05/2020 | 1 | adult | vc57_irecords_extract |
| Jim Mart Nature Reserve | SK36S | 21/05/2016 | 1 | Adult | vc57_irecords_extract |
| Ashover, Derbyshire | SK36L | 20/05/2015 | 1 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 28/05/2012 | 1 | adult | vc57_irecords_extract |
| Bamford St,Ripley | SK34Z | 28/05/2012 | 1 | Adult | vc57_danes_bc_data |
| Sandiacre (Hayworth Rd Recreation) | SK43T | 25/05/2012 | 1 | Adult | vc57_danes_bc_data |
| Jackson's Ln | SK34U | 21/05/2012 | 1 | Adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 07/05/2011 | 1 | adult | vc57_irecords_extract |
| Bamford St,Ripley | SK34Z | 07/05/2011 | 1 | Adult | vc57_danes_bc_data |
| Backgarden of Whitegates, Codnor | SK44E | 24/05/2010 | 1 | adult | vc57_irecords_extract |
| Whitegates, Codnor | SK44E | 24/05/2010 | 1 | Adult | vc57_danes_bc_data |
| Rose Av,Clowne | SK57D | 24/05/2010 | 1 | Adult | vc57_danes_bc_data |
| Backgarden Marehay | SK34Z | 21/05/2010 | 1 | adult | vc57_irecords_extract |
| Bamford St,Ripley | SK34Z | 21/05/2010 | 1 | Adult | vc57_danes_bc_data |
| Repton Shrubs | SK32G | 09/05/2008 | 1 | Adult | vc57_danes_bc_data |
| Deep Dale, Buxton | SK07V | 17/05/2006 | 1 | Adult | vc57_danes_bc_data |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 15/05/2004 | 1 | Adult | vc57_danes_bc_data |
| Main Street, Kings Newton | SK32Y | 02/05/2004 | 2 | Adult | vc57_irecords_extract |
| Main St,Kings Newton,Melbourne | SK32Y | 02/05/2004 | 2 | Adult | vc57_danes_bc_data |