– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Rare / Uncommon / Scarce 
– Leaf Miner 
– Day-flying
– care required in the identification process, as confusion with similar species is likely – quality photographs required. ID pointers: Forewing is brown becoming reddish or orangney brown towards the dorsum. with a dark fused double spot at the base of the cleft. Forewing cleft into lobes from just beyond two thirds. A longitudinal spot in the dorsal half of the costal lobe and a small dark spot just beyond one-third.
Distribution: (Last record: 14 September 2024 at Ilkeston ) – A very localised species in Derbyshire, as it is eleswhere in Britian. It was introduced in the late 1960’s and is spreading. Garden records may originate from larvae introduced with cultivated plants of S.Hypnoides, but the moth is able to spread between gardens, and has mainly been found in areas not very distant from wild populations of S. hypnoides (Mossy Saxifrage). Larvae have been found in the Derbyshire Dales where wild S.Hynoides exists.
*** Last updated on 2 October 2025 by RP ***
Last Recorded Year: 2024
Last Recorded By – Brian Hobby
Last Recorded General Area – Ilkeston
Selected Images: Buxton, Derbyshire – Ian White© – Cromford, Derbyshire – Clive Ashton©
Image Gallery
Distribution Map for Stenoptilia millieridactyla
Found 50 records
↳ 3 from After 2025
↳ 6 from 2020 - 2024
↳ 41 from Before 2020
↳ 3 from After 2025
↳ 6 from 2020 - 2024
↳ 41 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 – Stenoptilia millieridactyla
⚠️ 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:
Stenoptilia millieridactyla
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Stenoptilia millieridactyla
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Stenoptilia millieridactyla
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: Stenoptilia millieridactyla
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Stenoptilia millieridactyla
AGR: 0% | Total % Change: 0%
CUSUM Analysis: Stenoptilia millieridactyla
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 14 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 2006, reaching above average levels. The lowest population point occurred near 2002, 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: Stenoptilia millieridactyla
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Stenoptilia millieridactyla
Stenoptilia millieridactyla
( 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
Stenoptilia millieridactyla
Stenoptilia millieridactyla
( 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 - Stenoptilia millieridactyla – 50 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Ilkeston, Derbyshire | SK44K | 29/08/2025 | 2 | adult | vc57_irecords_extract |
| Buxton (p) | SK07R | 19/06/2025 | 1 | adult | vc57_irecords_extract |
| upper cromford garden | SK25Y | 12/06/2025 | 1 | adult | vc57_irecords_extract |
| Ilkeston, Derbyshire | SK44K | 14/09/2024 | 2 | adult | vc57_irecords_extract |
| Ilkeston, Derbyshire | SK44K | 06/09/2024 | 2 | adult | vc57_irecords_extract |
| Norton Lees, Sheffield (VC) | SK38L | 28/07/2024 | 1 | adult | vc57_irecords_extract |
| upper cromford garden | SK25Y | 26/07/2024 | 1 | adult | vc57_irecords_extract |
| Buxton SK, UK | SK07R | 01/07/2024 | 1 | Adult | vc57_irecords_extract |
| Shirland - Hallfieldgate Lane | SK35Z | 13/06/2020 | 1 | adult | vc57_irecords_extract |
| Norton Lees | SK38L | 15/07/2019 | 1 | adult | Danes_2019-2021 |
| Buxton SK, UK | SK07S | 10/07/2013 | 1 | Adult | vc57_irecords_extract |
| Lang Rd, Alvaston, Derby | SK33R | 09/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Backgarden Marehay | SK34Z | 19/09/2011 | 1 | adult | vc57_irecords_extract |
| Bamford St,Ripley | SK34Z | 19/09/2011 | 1 | Adult | vc57_danes_bc_data |
| Backgarden Marehay | SK34Z | 16/08/2011 | 1 | adult | vc57_irecords_extract |
| Bamford St,Ripley | SK34Z | 16/08/2011 | 1 | Adult | vc57_danes_bc_data |
| Backgarden Marehay | SK34Z | 11/08/2011 | 1 | adult | vc57_irecords_extract |
| Bamford St,Ripley | SK34Z | 11/08/2011 | 1 | Adult | vc57_danes_bc_data |
| Backgarden Marehay | SK34Z | 24/07/2011 | 1 | adult | vc57_irecords_extract |
| Bamford St,Ripley | SK34Z | 24/07/2011 | 1 | Adult | vc57_danes_bc_data |
| Backgarden Marehay | SK34Z | 23/07/2011 | 1 | adult | vc57_irecords_extract |
| Bamford St,Ripley | SK34Z | 23/07/2011 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 05/08/2008 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 21/07/2008 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 08/07/2007 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 07/07/2007 | 1 | Adult | vc57_danes_bc_data |
| Church St,Holloway,Matlock | SK35I | 04/07/2007 | 1 | Adult | vc57_danes_bc_data |
| Far Cross,Cavendish Park,Matlock | SK36A | 09/10/2006 | 2 | Adult | vc57_danes_bc_data |
| Starkholmes, nr Matlock | SK25Z | 07/10/2006 | 3 | Adult | vc57_danes_bc_data |
| Far Cross,Cavendish Park,Matlock | SK36A | 07/10/2006 | 5 | Adult | vc57_danes_bc_data |
| Far Cross,Cavendish Park,Matlock | SK36A | 04/10/2006 | 4 | Adult | vc57_danes_bc_data |
| Starkholmes, nr Matlock | SK25Z | 29/09/2006 | 5 | Adult | vc57_danes_bc_data |
| Far Cross,Cavendish Park,Matlock | SK36A | 27/09/2006 | 7 | Adult | vc57_danes_bc_data |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 22/08/2006 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 22/07/2005 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 14/07/2005 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 10/07/2005 | 3 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 09/07/2005 | 4 | Adult | vc57_danes_bc_data |
| Church St,Holloway,Matlock | SK35I | 15/05/2004 | 1 | Larvae | vc57_danes_bc_data |
| Holloway | SK35I | 28/07/2002 | 1 | Adult | vc57_danes_bc_data |
| Holloway | SK35I | 09/07/2002 | 1 | Adult | vc57_danes_bc_data |
| Church St,Holloway,Matlock | SK35I | 22/07/2001 | 2 | Adult | vc57_danes_bc_data |
| Lea, Holloway, Matlock | SK35I | 19/07/2001 | 1 | Adult | vc57_danes_bc_data |
| Church St,Holloway,Matlock | SK35I | 10/07/2001 | 1 | Adult | vc57_danes_bc_data |
| Deep Dale, Derbys (km from Buxton) | SK07V | 27/05/1998 | 10 | Larvae | vc57_danes_bc_data |
| Church St,Holloway,Matlock | SK35I | 07/07/1997 | 1 | Adult | vc57_danes_bc_data |
| Fernhill Rd, Mellor | SJ98U | 23/06/1997 | 1 | Adult | vc57_danes_bc_data |
| Fernhill Rd, Mellor | SJ98U | 10/05/1997 | 1 | Larvae | vc57_danes_bc_data |
| Threepieces, Veron Lane, Kelstedge, Ashover | SK36G | 01/01/1981 | 1 | Adult | vc57_danes_bc_data |
| Highfield Rd, Chesterfield | SK37Q | 24/07/1969 | 1 | Adult | vc57_danes_bc_data |