– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Uncertain/Unknown – Insufficient Data
– care required in the identification process, as confusion with similar species is likely – quality photographs required. Confusion Species: Swammerdamia caesiella – Poorly marked / worn examples require Gen. Det.
ID pointers: A white head with a grey thorax. Forewing grey with darker speckling with a row of fine blackish dots on the costa near the base of wing. The darker markings on the forewings can form blotches towards the apex and slight cross-band about half way.Poorly marked or worn individuals need to be Grade 4.
Distribution: (Last record: 12 July 2024 at Ilkeston ) – Uncertain / Unknown, what few records there are are widespread, so should be reasonably well distributed on Hawthorn (Crataegus) and Rowan (Sorbus aucuparia).
*** Last updated on 2 October 2025 by RP ***
Last Recorded Year: 2024
Last Recorded By – Brian Hobby
Last Recorded General Area – Ilkeston
Selected Images: Kings Newton, Derbyshire – Will Soar ©
Image Gallery
No gallery images found for this moth.
Distribution Map for Paraswammerdamia nebulella
Found 107 records
↳ 12 from After 2025
↳ 16 from 2020 - 2024
↳ 79 from Before 2020
↳ 12 from After 2025
↳ 16 from 2020 - 2024
↳ 79 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 – Paraswammerdamia nebulella
⚠️ 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:
Paraswammerdamia nebulella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Paraswammerdamia nebulella
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Paraswammerdamia nebulella
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: Paraswammerdamia nebulella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Paraswammerdamia nebulella
AGR: 1.43% | Total % Change: 34.6%
CUSUM Analysis: Paraswammerdamia nebulella
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 7 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 2004, 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: Paraswammerdamia nebulella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Paraswammerdamia nebulella
Paraswammerdamia nebulella
( 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.
Records Behind the Map and Charts - Paraswammerdamia nebulella – 107 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Darwin Forest | SK26X | 01/07/2025 | 1 | adult | vc57_irecords_extract |
| Darwin Forest | SK26X | 03/07/2025 | 1 | adult | vc57_irecords_extract |
| Darwin Forest | SK26X | 04/07/2025 | 1 | adult | vc57_irecords_extract |
| Belper | SK34U | 10/07/2025 | 1 | adult | vc57_irecords_extract |
| Belper | SK34U | 11/07/2025 | 1 | adult | vc57_irecords_extract |
| Belper | SK34U | 12/07/2025 | 1 | adult | vc57_irecords_extract |
| Belper | SK34U | 21/06/2025 | 1 | adult | vc57_irecords_extract |
| Buxton (w) | SK07R | 20/06/2025 | 1 | adult | vc57_irecords_extract |
| Belper | SK34N | 25/06/2025 | 1 | adult | vc57_irecords_extract |
| Drakelow, Derbys. | SK22F | 28/06/2025 | 22 | adult | vc57_irecords_extract |
| Darwin Forest | SK26X | 30/06/2025 | 1 | adult | vc57_irecords_extract |
| Midway, Derbys. | SK32A | 30/06/2025 | 3 | adult | vc57_irecords_extract |
| Ilkeston, Derbyshire | SK44K | 12/07/2024 | 1 | adult | vc57_irecords_extract |
| Derby DE | SK33I | 19/07/2024 | 1 | adult | vc57_irecords_extract |
| Belper | SK34U | 26/06/2024 | 1 | adult | vc57_irecords_extract |
| Belper | SK34U | 25/06/2023 | 1 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 19/07/2022 | 3 | Adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 18/07/2022 | 1 | adult | vc57_irecords_extract |
| Kings Newton Fields | SK32Y | 19/06/2022 | 1 | Adult | vc57_irecords_extract |
| Hathersage, Derbyshire, UK | SK28F | 13/07/2021 | 1 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 08/07/2021 | 1 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 18/07/2021 | 2 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 20/07/2021 | 3 | adult | vc57_irecords_extract |
| Shirland - Hallfieldgate Lane | SK35Z | 20/07/2021 | 1 | adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 16/07/2021 | 1 | adult | vc57_irecords_extract |
| Kings Newton Fields | SK32Y | 05/07/2020 | 1 | Adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 30/06/2020 | 1 | adult | vc57_irecords_extract |
| The Mays, Malthouse Lane, Froggatt | SK27N | 26/06/2020 | 1 | adult | Danes_2019-2021 |
| Main Street, Kings Newton | SK32Y | 17/07/2019 | 1 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 15/07/2019 | 1 | Adult | vc57_irecords_extract |
| Ladycroft Ave, Buxton | SK07S | 16/07/2019 | 1 | adult | Danes_2019-2021 |
| Ladycroft Ave, Buxton | SK07S | 12/07/2019 | 1 | Adult | Danes_2019-2021 |
| Main Street, Kings Newton | SK32Y | 16/07/2018 | 1 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 03/07/2017 | 1 | Adult | vc57_irecords_extract |
| Rosliston (National Forest Centre), Swadlincote | SK21N | 22/07/2016 | 3 | Adult | vc57_danes_bc_data |
| Wood Lane,Newhall,Swadlincote | SK22V | 21/07/2016 | 3 | Adult | vc57_danes_bc_data |
| Backgarden Marehay | SK34Z | 01/08/2015 | 1 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 06/08/2015 | 1 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 23/07/2015 | 1 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 02/07/2014 | 3 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 05/07/2014 | 1 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 10/07/2014 | 6 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 15/07/2014 | 1 | adult | vc57_irecords_extract |
| Firestone Lane, Matlock | SK36G | 18/07/2014 | 1 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 19/07/2014 | 1 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 21/07/2014 | 1 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 25/07/2014 | 3 | adult | vc57_irecords_extract |
| Shirland - Hallfieldgate Lane | SK35Z | 15/07/2014 | 1 | Adult | vc57_irecords_extract |
| Shirland - Hallfieldgate Lane | SK35Z | 17/07/2014 | 1 | Adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 21/06/2014 | 1 | adult | vc57_irecords_extract |
| Wood Lane,Newhall,Swadlincote | SK22V | 02/08/2013 | 1 | Adult | vc57_danes_bc_data |
| Backgarden Marehay | SK34Z | 09/07/2013 | 1 | adult | vc57_irecords_extract |
| Shirland - Hallfieldgate Lane | SK35Z | 17/07/2013 | 1 | Adult | vc57_irecords_extract |
| Shirland - Hallfieldgate Lane | SK35Z | 25/07/2013 | 2 | Adult | vc57_irecords_extract |
| Burnaston (Toyota Plant NR), Derby | SK23V | 20/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Backgarden Marehay | SK34Z | 02/08/2012 | 3 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 02/08/2012 | 1 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 05/08/2012 | 2 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 08/08/2012 | 1 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 08/08/2012 | 1 | adult | vc57_irecords_extract |
| Bamford St,Ripley | SK34Z | 08/08/2012 | 2 | Adult | vc57_danes_bc_data |
| Bamford St,Ripley | SK34Z | 05/08/2012 | 2 | Adult | vc57_danes_bc_data |
| Bamford St,Ripley | SK34Z | 02/08/2012 | 4 | Adult | vc57_danes_bc_data |
| Backgarden Marehay | SK34Z | 17/07/2012 | 1 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 21/07/2012 | 1 | adult | vc57_irecords_extract |
| Carr Wood | SK45A | 22/07/2012 | 2 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 25/07/2012 | 4 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 31/07/2012 | 1 | adult | vc57_irecords_extract |
| Bamford St,Ripley | SK34Z | 17/07/2012 | 1 | Adult | vc57_danes_bc_data |
| Carr Wood, Ripley | SK45A | 22/07/2012 | 2 | Adult | vc57_danes_bc_data |
| Bamford St,Ripley | SK34Z | 31/07/2012 | 1 | Adult | vc57_danes_bc_data |
| Duffield Rd, Allestree, Derby | SK34K | 15/07/2012 | 1 | Adult | vc57_danes_bc_data |
| Bamford St,Ripley | SK34Z | 21/07/2012 | 1 | Adult | vc57_danes_bc_data |
| Bamford St,Ripley | SK34Z | 25/07/2012 | 4 | Adult | vc57_danes_bc_data |
| Backgarden Marehay | SK34Z | 06/07/2010 | 3 | adult | vc57_irecords_extract |
| Backgarden Marehay | SK34Z | 10/07/2010 | 1 | adult | vc57_irecords_extract |
| Backgarden of Whitegates, Codnor | SK44E | 19/07/2010 | 1 | adult | vc57_irecords_extract |
| Bamford St,Ripley | SK34Z | 10/07/2010 | 1 | Adult | vc57_danes_bc_data |
| Bamford St,Ripley | SK34Z | 06/07/2010 | 3 | Adult | vc57_danes_bc_data |
| Whitegates, Codnor | SK44E | 19/07/2010 | 1 | Adult | vc57_danes_bc_data |
| Backgarden Marehay | SK34Z | 29/06/2010 | 1 | adult | vc57_irecords_extract |
| Midway Rd,Midway,Swadlincote | SK32A | 26/06/2010 | 1 | Adult | vc57_danes_bc_data |
| Bamford St,Ripley | SK34Z | 29/06/2010 | 1 | Adult | vc57_danes_bc_data |
| Melbourne, Derbyshire | SK32X | 03/07/2009 | 1 | adult | vc57_irecords_extract |
| Midway, Derbys. | SK32A | 03/07/2009 | 1 | adult | vc57_irecords_extract |
| West Park Meadows (LNR),Spondon | SK33Y | 10/07/2009 | 1 | Adult | vc57_danes_bc_data |
| Bristol Rd,Ilkeston | SK44R | 02/07/2009 | 1 | Adult | vc57_danes_bc_data |
| Midway Rd,Midway,Swadlincote | SK32A | 03/07/2009 | 1 | Adult | vc57_danes_bc_data |
| Spinney Hill,Melbourne | SK32X | 03/07/2009 | 1 | Adult | vc57_danes_bc_data |
| Ticknall Limeyards,Ticknall | SK32R | 03/08/2007 | 1 | Adult | vc57_danes_bc_data |
| Main Street, Kings Newton | SK32Y | 01/07/2005 | 1 | Adult | vc57_irecords_extract |
| Main St,Kings Newton,Melbourne | SK32Y | 01/07/2005 | 1 | Adult | vc57_danes_bc_data |
| Main Street, Kings Newton | SK32Y | 13/07/2004 | 1 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 16/07/2004 | 5 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 22/07/2004 | 1 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 25/07/2004 | 1 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 27/07/2004 | 4 | Adult | vc57_irecords_extract |
| Toyota Site, Burnaston | SK23V | 28/07/2004 | 1 | Adult | vc57_irecords_extract |
| Main St,Kings Newton,Melbourne | SK32Y | 13/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Main St,Kings Newton,Melbourne | SK32Y | 25/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Main St,Kings Newton,Melbourne | SK32Y | 27/07/2004 | 4 | Adult | vc57_danes_bc_data |
| Main St,Kings Newton,Melbourne | SK32Y | 16/07/2004 | 5 | Adult | vc57_danes_bc_data |
| Main St,Kings Newton,Melbourne | SK32Y | 22/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Burnaston (Toyota Plant NR), Derby | SK23V | 28/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Millers Dale (west of Litton Mill) | SK17L | 05/07/1997 | 1 | Adult | vc57_danes_bc_data |
| Acton Rd Ind Est, Long Eaton | SK43W | 28/06/1995 | 1 | Adult | vc57_danes_bc_data |
| Deerlands Rd, Ashgate, Chesterfield | SK37K | 03/08/1990 | 1 | Adult | vc57_danes_bc_data |