– click for Adult Macro Verification Guidelines
– Rare / Uncommon / Scarce
– care required in the identification process, as confusion with similar species is likely – quality photographs required. Confusion Species: The most likely confusion species are Common Wainscot and Smoky Wainscot.
ID pointers: The outer edge (Termen) of the forewing is much straighter than related species and there is a noticeable outward projection at the wing tip (Apical point) and a row of black post-median dots on the forewing can help to identify. Ground colour is a soft light greyish straw, sometimes tinged with a pinkish-brown. A brown streak runs along the central vein.
Hindwing is whitish to pale greyish with a dark discal mark and a row of short dark postmedian dashes. Another identification aid is the white and brown double striped collar, giving the illusion the moth is wearing a headband, if viewed from the front.
Hindwing is whitish to pale greyish with a dark discal mark and a row of short dark postmedian dashes. Another identification aid is the white and brown double striped collar, giving the illusion the moth is wearing a headband, if viewed from the front.
Distribution: (First record: 7 July 1982 at Sawley ) – (Last record: 29 June 2025 at Belper ) – A resident that is uncommon and locally distributed in Derbyshire. This species appears to be restricted to the eastern end of the Trent Valley, and with 14 records in 2023 from 3 sites, it could be expanding its range. This specimen was trapped at one of the species strongholds in the county, Breaston.
*** Last updated on 2 October 2025 by RP ***
Forewing: 14-18mm
Last Recorded Year: 2025
Last Recorded By – Dave Newcombe
Last Recorded General Area – Belper
Selected Images: Breaston, Derbyshire – Steve Thorpe© / Belper 29/6/2025 – Dave Newcombe©
Image Gallery
Distribution Map for Mythimna straminea
Found 53 records
↳ 2 from After 2025
↳ 14 from 2020 - 2024
↳ 37 from Before 2020
↳ 2 from After 2025
↳ 14 from 2020 - 2024
↳ 37 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 – Mythimna straminea
⚠️ 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:
Mythimna straminea
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Mythimna straminea
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Mythimna straminea
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: Mythimna straminea
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Mythimna straminea
AGR: 0% | Total % Change: 0%
CUSUM Analysis: Mythimna straminea
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 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 2025, reaching above average levels. The lowest population point occurred near 2020, 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: Mythimna straminea
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Mythimna straminea
Mythimna straminea
( 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 - Mythimna straminea – 53 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Staveley Derbyshire | SK47H | 11/07/2025 | 1 | adult | vc57_irecords_extract |
| Belper, Derbyshire | SK34N | 28/06/2025 | 1 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 11/08/2023 | 4 | adult | vc57_irecords_extract |
| Staveley Derbyshire | SK47H | 17/07/2023 | 1 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 21/07/2023 | 1 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 28/07/2023 | 4 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 05/08/2022 | 1 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 19/07/2022 | 1 | Adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 01/08/2021 | 4 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 08/08/2021 | 1 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 13/08/2021 | 1 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 24/07/2021 | 2 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 06/08/2020 | 1 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 09/08/2020 | 2 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 14/08/2020 | 1 | adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 12/08/2020 | 1 | Adult | vc57_irecords_extract |
| Belper | SK34U | 27/06/2017 | 1 | adult | vc57_irecords_extract |
| Hardhurst Rd, Alvaston, Derby | SK33W | 16/08/2014 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 19/07/2014 | 1 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 23/07/2014 | 1 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 19/07/2014 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 24/07/2014 | 1 | Adult | vc57_danes_bc_data |
| Burnaston (Toyota Plant NR), Derby | SK23V | 20/07/2013 | 2 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 25/07/2013 | 2 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 25/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 17/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 22/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 22/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Burnaston (Toyota Plant NR), Derby | SK23V | 20/07/2013 | 2 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 25/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 25/07/2013 | 2 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 17/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Pleasley NR (Pit Head) | SK46X | 11/08/2012 | 1 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 10/08/2012 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 23/07/2012 | 1 | Adult | vc57_danes_bc_data |
| Williamthorpe LNR,Holmewood | SK46I | 21/08/2011 | 2 | Adult | vc57_danes_bc_data |
| Pleasley Pit (woodyard) | SK46X | 07/06/2008 | 1 | Adult | vc57_danes_bc_data |
| Drakelow NR,Burton on Trent | SK22F | 08/09/2007 | 1 | Adult | vc57_danes_bc_data |
| Drakelow NR,Burton on Trent | SK22F | 08/09/2007 | 1 | Adult | vc57_danes_bc_data |
| Drakelow NR,Burton on Trent | SK22F | 31/08/2007 | 1 | Adult | vc57_danes_bc_data |
| Drakelow NR,Burton on Trent | SK22F | 31/08/2007 | 1 | Adult | vc57_danes_bc_data |
| Briar Close,Newhall,Swadlincote | SK22V | 18/07/2007 | 1 | Adult | vc57_danes_bc_data |
| Briar Close,Newhall,Swadlincote | SK22V | 18/07/2007 | 1 | Adult | vc57_danes_bc_data |
| Pond House, Mapperley, Shipley Park | SK44G | 22/07/1989 | 1 | Adult | vc57_danes_bc_data |
| Pond House, Mapperley, Shipley Park | SK44G | 22/07/1989 | 1 | Adult | vc57_danes_bc_data |
| Pond House, Mapperley, Shipley Park | SK44G | 15/07/1988 | 1 | Adult | vc57_danes_bc_data |
| Pond House, Mapperley, Shipley Park | SK44G | 15/07/1988 | 1 | Adult | vc57_danes_bc_data |
| Carr Vale NR,Bolsover | SK47K | 23/08/1987 | 1 | Adult | vc57_danes_bc_data |
| Wilmot St, Sawley, Long Eaton | SK43R | 07/07/1982 | 8 | Adult | vc57_danes_bc_data |
| Sawley Tip, Sawley, Long Eaton | SK43V | 08/07/1982 | 3 | Adult | vc57_danes_bc_data |
| Wilmot St, Sawley, Long Eaton | SK43R | 07/07/1982 | 8 | Adult | vc57_danes_bc_data |
| Newbold Ave, Chesterfield | SK37R | 05/08/1970 | 1 | Adult | vc57_danes_bc_data |
| Newbold Ave, Chesterfield | SK37R | 05/08/1970 | 1 | Adult | vc57_danes_bc_data |