– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Generally Common / Widespread
– care required in the identification process, as confusion with similar species is likely – quality photographs required. Confusion Species: Bryotropha domestica
ID pointers: A tiny species. Forewing greyish brown, speckled darkish greyish-brown. Darker shading at the base, apex, tornus and along the costa. A largish spot at about two thirds. Looks similar to Bryotropha domestica so care needs to be taken with ID.
Distribution: A common species that is most probably well distributed across the county.
*** Last updated on 2 October 2025 by RP ***
Blue-coded] moths are not stored on the website at this current time. Selected Images: Kings Newton – 2004 – Will Soar © / Belper – Dave Evans© / Birch Vale – Jane Hewitt©
Image Gallery
No gallery images found for this moth.
Distribution Map for Borkhausenia fuscescens
Found 60 records
↳ 5 from After 2025
↳ 25 from 2020 - 2024
↳ 30 from Before 2020
↳ 5 from After 2025
↳ 25 from 2020 - 2024
↳ 30 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 – Borkhausenia fuscescens
⚠️ 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:
Borkhausenia fuscescens
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Borkhausenia fuscescens
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Borkhausenia fuscescens
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: Borkhausenia fuscescens
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Borkhausenia fuscescens
AGR: 0.87% | Total % Change: 20%
CUSUM Analysis: Borkhausenia fuscescens
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 2018, reaching above average levels. The lowest population point occurred near 2016, 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: Borkhausenia fuscescens
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Borkhausenia fuscescens
Borkhausenia fuscescens
( 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 - Borkhausenia fuscescens – 60 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Norton Lees, Sheffield | SK38L | 18/07/2025 | 1 | adult | vc57_irecords_extract |
| Hathersage | SK28F | 18/07/2025 | 1 | adult | vc57_irecords_extract |
| Drakelow, Derbys. | SK22F | 28/06/2025 | 1 | adult | vc57_irecords_extract |
| Findern, Derbyshire | SK33A | 12/06/2025 | 2 | adult | vc57_irecords_extract |
| Woodseats, Sheffield | SK38L | 15/05/2025 | 1 | adult | vc57_irecords_extract |
| Midway, Derbys. | SK32A | 03/08/2024 | 1 | adult | vc57_irecords_extract |
| Hathersage | SK28F | 01/08/2024 | 1 | adult | vc57_irecords_extract |
| King's Newton | SK32Y | 29/07/2024 | 1 | adult | vc57_irecords_extract |
| Owler Bar, Sheffield SBQ, UK | SK27U | 20/07/2024 | 1 | Adult | vc57_irecords_extract |
| Norton Lees, Sheffield, UK | SK38L | 12/07/2024 | 1 | Adult | vc57_irecords_extract |
| Melbourne, Derbyshire | SK32X | 07/07/2024 | 1 | adult | vc57_irecords_extract |
| Ninelands Road | SK28F | 06/09/2023 | 1 | adult | vc57_irecords_extract |
| Findern Garden | SK33A | 07/07/2023 | 1 | Adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 03/09/2022 | 1 | adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 02/09/2022 | 1 | adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 14/08/2022 | 2 | adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 01/08/2022 | 1 | adult | vc57_irecords_extract |
| Belper | SK34U | 29/07/2022 | 1 | adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 11/07/2022 | 1 | adult | vc57_irecords_extract |
| Hathersage, Derbyshire, UK | SK28F | 10/07/2022 | 1 | adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 08/07/2022 | 1 | adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 16/07/2021 | 1 | adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 01/07/2021 | 1 | adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 12/08/2020 | 1 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 07/08/2020 | 1 | Adult | vc57_irecords_extract |
| Ladycroft Ave, Buxton | SK07S | 31/07/2020 | 1 | adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 12/07/2020 | 1 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 12/07/2020 | 1 | Adult | vc57_irecords_extract |
| Birch Vale | SK08I | 26/06/2020 | 1 | adult | vc57_irecords_extract |
| The Mays, Malthouse Lane, Froggatt | SK27N | 14/06/2020 | 1 | adult | Danes_2019-2021 |
| Main Street, Kings Newton | SK32Y | 17/07/2018 | 2 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 03/07/2017 | 2 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 16/07/2016 | 1 | Adult | vc57_irecords_extract |
| Shirland-Hallfieldgate Lane | SK35Z | 08/08/2015 | 1 | Adult | vc57_irecords_extract |
| Back Lane,Glapwell | SK46T | 23/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Main Street, Kings Newton | SK32Y | 13/07/2005 | 1 | Adult | vc57_irecords_extract |
| Main St,Kings Newton,Melbourne | SK32Y | 13/07/2005 | 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 |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 07/08/2004 | 1 | Adult | vc57_danes_bc_data |
| Main Street, Kings Newton | SK32Y | 04/08/2004 | 1 | Adult | vc57_irecords_extract |
| Main St,Kings Newton,Melbourne | SK32Y | 04/08/2004 | 1 | Adult | vc57_danes_bc_data |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 30/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Main Street, Kings Newton | SK32Y | 27/07/2004 | 1 | Adult | vc57_irecords_extract |
| Main St,Kings Newton,Melbourne | SK32Y | 27/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Main Street, Kings Newton | SK32Y | 25/07/2004 | 1 | Adult | vc57_irecords_extract |
| Main St,Kings Newton,Melbourne | SK32Y | 25/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 22/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 19/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Main Street, Kings Newton | SK32Y | 16/07/2004 | 1 | Adult | vc57_irecords_extract |
| Main St,Kings Newton,Melbourne | SK32Y | 16/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Spinney Hill,Melbourne | SK32X | 15/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Main Street, Kings Newton | SK32Y | 13/07/2004 | 1 | Adult | vc57_irecords_extract |
| Main St,Kings Newton,Melbourne | SK32Y | 13/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Spinney Hill,Melbourne | SK32X | 11/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Melbourne, Derbyshire | SK32X | 09/07/2004 | 1 | adult | vc57_irecords_extract |
| Spinney Hill,Melbourne | SK32X | 09/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Main Street, Kings Newton | SK32Y | 29/06/2004 | 1 | Adult | vc57_irecords_extract |
| Main St,Kings Newton,Melbourne | SK32Y | 29/06/2004 | 1 | Adult | vc57_danes_bc_data |
| Deerlands Rd, Ashgate, Chesterfield | SK37K | 24/07/1993 | 1 | Adult | vc57_danes_bc_data |