– click for Adult Macro Verification Guidelines
– Rare / Uncommon / Scarce
– easy to identify, generally distinctive and unlikely to be confused with other species.ID pointers: Unmistakeable. The ground colour is orange or orange-yellow from wing base to a distinct sharply diagonal and slightly wavy cross-line. Beyond this it is pinkish-brown. A fairly thickset noctuid.
Distribution: (Last record: 17 June 2025 at Sandiacre ) – A resident that is scarce and locally distributed in Derbyshire. Restricted to a few areas where the food plant Rest Harrow grows. A species that needs monitoring in the county. The most recent record I can find relates to one at a garden light trap in Buxton on 21st July 2010, and the one below from Darley Dale 4th July 2018. One recorded from Sandiacre 17/6/2025.
*** Last updated on 2 October 2025 by RP ***
Forewing: 16-19mm
Last Recorded Year: 2025
Last Recorded By – Emily Milnes
Last Recorded General Area – Sandiacre
Selected Images: Image by Simon Roddis © / Sandiacre 17/6/2025 Emily Milnes©
Image Gallery
Distribution Map for Pyrrhia umbra
Found 24 records
↳ 0 from After 2025
↳ 0 from 2020 - 2024
↳ 24 from Before 2020
↳ 0 from After 2025
↳ 0 from 2020 - 2024
↳ 24 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 – Pyrrhia umbra
⚠️ 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:
Pyrrhia umbra
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Pyrrhia umbra
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Pyrrhia umbra
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: Pyrrhia umbra
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Pyrrhia umbra
AGR: 0% | Total % Change: 0%
CUSUM Analysis: Pyrrhia umbra
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 16 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 2011, reaching above average levels. The lowest population point occurred near 2003, 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: Pyrrhia umbra
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Pyrrhia umbra
Pyrrhia umbra
( 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 - Pyrrhia umbra – 24 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Pleasley Pit CP, Pleasley | SK46X | 17/09/2018 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 13/07/2017 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 28/06/2017 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 13/07/2015 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 19/07/2014 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 12/07/2014 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 21/07/2014 | 1 | Adult | vc57_danes_bc_data |
| The Old Manse, Ault Hucknall, Glapwell | SK46S | 20/07/2013 | 1 | Adult | vc57_danes_bc_data |
| The Old Manse, Ault Hucknall, Glapwell | SK46S | 19/07/2013 | 1 | Adult | vc57_danes_bc_data |
| The Old Manse, Ault Hucknall, Glapwell | SK46S | 19/07/2013 | 1 | Adult | vc57_danes_bc_data |
| The Old Manse, Ault Hucknall, Glapwell | SK46S | 20/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 01/10/2011 | 1 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 02/10/2011 | 9 | Adult | vc57_danes_bc_data |
| Buxton SK, UK | SK07S | 22/07/2010 | 1 | Adult | vc57_irecords_extract |
| Ladycroft Ave,Buxton | SK07S | 21/07/2010 | 1 | Adult | vc57_danes_bc_data |
| Ladycroft Ave, Buxton | SK07S | 21/07/2010 | 1 | Adult | vc57_danes_bc_data |
| Newboundmill Lane,Pleasley | SK56C | 10/06/2007 | 1 | Adult | vc57_danes_bc_data |
| South Wood, Calke, Ticknall | SK32Q | 10/10/2006 | 5 | Adult | vc57_danes_bc_data |
| Midway Rd,Midway,Swadlincote | SK32A | 10/07/2003 | 1 | Adult | vc57_danes_bc_data |
| Back Lane,Glapwell | SK46T | 13/07/1995 | 1 | Adult | vc57_danes_bc_data |
| Back Lane, Glapwell | SK46T | 13/07/1995 | 1 | Adult | vc57_danes_bc_data |
| Skinner St, Creswell, Worksop | SK57H | 20/07/1982 | 2 | Adult | vc57_danes_bc_data |
| Welbeck Rd, Bolsover | SK47V | 10/08/1969 | 1 | Adult | vc57_danes_bc_data |
| Breadsall Moor, Little Eaton | SK33U | 01/01/1885 | 1 | Adult | vc57_danes_bc_data |