– 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. ID pointers: Very similar to the un-banded form of Riband Wave (remutata). Slightly smaller with smooth silky grey-brown coloured wings and fainter cross-lines. The third cross-line is missing the kink of Riband Wave.
Distribution: (First record: 1951 ) – (Last record: 22 July 2025 at Longdendale ) – A species that seems to be very scarce and locally distributed in Derbyshire, mainly in the central NW. It maybe overlooked amongst Riband Wave Idea remutata. Usually only single specimens trapped most years. Added to the county list in 1951.
*** Last updated on 2 October 2025 by RP ***
Last Recorded Year: 2025
First Recorded Year: 1951
Last Recorded By – Christian Heintzen
Last Recorded General Area – Longdendale
Selected Images: Darley Dale – Image by Simon Roddis © / Belper – 29th June 2018 – Dave Evans © / Torside Clough, Longdendale (2025) Christian Heintzen©
Image Gallery
Distribution Map for Idaea straminata
Found 49 records
↳ 1 from After 2025
↳ 15 from 2020 - 2024
↳ 33 from Before 2020
↳ 1 from After 2025
↳ 15 from 2020 - 2024
↳ 33 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 – Idaea straminata
⚠️ 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:
Idaea straminata
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Idaea straminata
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Idaea straminata
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: Idaea straminata
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Idaea straminata
AGR: 0% | Total % Change: 0%
CUSUM Analysis: Idaea straminata
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 11 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 2007, reaching above average levels. The lowest population point occurred near 2021, 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: Idaea straminata
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Idaea straminata
Idaea straminata
( 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 - Idaea straminata – 49 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Longdendale, Torside Clough, Crags at m | SK09T | 22/07/2025 | 1 | adult | vc57_irecords_extract |
| Markham Vale South Tip | SK47K | 12/07/2023 | 2 | adult | vc57_irecords_extract |
| Ninelands Road | SK28F | 07/07/2023 | 1 | adult | vc57_irecords_extract |
| Hathersage, Derbyshire, UK | SK28F | 07/07/2023 | 1 | adult | vc57_irecords_extract |
| Longdendale, Wildboar Clough | SK09U | 07/07/2023 | 2 | adult | vc57_irecords_extract |
| Longdendale, Long Gutter Edge Oaks | SK09U | 28/06/2023 | 9 | adult | vc57_irecords_extract |
| Hathersage | SK28F | 28/06/2023 | 1 | adult | vc57_irecords_extract |
| Garden, Walton | SK36U | 30/07/2022 | 1 | adult | vc57_irecords_extract |
| Ninelands Road | SK28F | 29/07/2022 | 1 | adult | vc57_irecords_extract |
| Garden, Walton | SK36U | 19/07/2022 | 3 | adult | vc57_irecords_extract |
| Staveley Derbyshire | SK47H | 14/07/2022 | 1 | adult | vc57_irecords_extract |
| Garden, Walton | SK36U | 13/07/2022 | 1 | adult | vc57_irecords_extract |
| Ninelands Road | SK28F | 31/07/2021 | 1 | adult | vc57_irecords_extract |
| Hathersage, Derbyshire, UK | SK28F | 26/07/2021 | 1 | adult | vc57_irecords_extract |
| Ninelands Road | SK28F | 18/07/2021 | 1 | adult | vc57_irecords_extract |
| Hathersage, Derbyshire, UK | SK28F | 09/07/2021 | 1 | adult | vc57_irecords_extract |
| Hathersage, Derbyshire, UK | SK28F | 25/07/2019 | 1 | adult | vc57_irecords_extract |
| Pleasley Pit CP, Pleasley | SK46X | 25/07/2019 | 1 | Adult | vc57_danes_bc_data |
| Hathersage, Derbyshire, UK | SK28F | 15/07/2019 | 1 | adult | vc57_irecords_extract |
| Hathersage, Derbyshire, UK | SK28F | 07/07/2019 | 1 | adult | vc57_irecords_extract |
| Pleasley Pit CP, Pleasley | SK46X | 06/08/2018 | 1 | Adult | vc57_danes_bc_data |
| Welbeck Drive, Wingerworth | SK36T | 27/07/2018 | 1 | Adult | vc57_danes_bc_data |
| Birch Vale | SK08I | 30/06/2018 | 1 | adult | vc57_irecords_extract |
| Belper | SK34U | 29/06/2018 | 1 | adult | vc57_irecords_extract |
| Birch Barn, New Mills Rd, Birch Vale | SK08I | 16/08/2015 | 1 | Adult | vc57_danes_bc_data |
| biggib dale biggin | SK15P | 31/07/2014 | 1 | adult | vc57_irecords_extract |
| biggin dale | SK15P | 01/07/2014 | 1 | adult | vc57_irecords_extract |
| Cross Green Cottages,Flint Lane,South Darley | SK26Q | 26/08/2013 | 1 | Adult | vc57_danes_bc_data |
| The Hollies,Station Rd,Darley Dale | SK26R | 15/07/2012 | 1 | Adult | vc57_danes_bc_data |
| Elgar Drive,Sawley,Long Eaton | SK43R | 07/07/2011 | 1 | Adult | vc57_danes_bc_data |
| The Hollies,Station Rd,Darley Dale | SK26R | 31/07/2010 | 1 | Adult | vc57_danes_bc_data |
| Dronfield Woodhouse | SK37J | 03/07/2010 | 1 | adult | vc57_irecords_extract |
| Calke Park Ticknall Lime Yards | SK32R | 22/07/2007 | 3 | adult | vc57_irecords_extract |
| Ticknall Limeyards,Ticknall | SK32R | 22/07/2007 | 3 | Adult | vc57_danes_bc_data |
| Chase Cliffe Lodge, Crich, Ambergate | SK35L | 22/07/2003 | 1 | Adult | vc57_danes_bc_data |
| School Close,Parkway Gardens,Darley Dale | SK26R | 04/08/2001 | 1 | Adult | vc57_danes_bc_data |
| Woodlands, Combs, Chapel en le Frith | SK07P | 11/07/1992 | 1 | Adult | vc57_danes_bc_data |
| Woodlands, Combs, Chapel en le Frith | SK07P | 13/07/1991 | 1 | Adult | vc57_danes_bc_data |
| Deerlands Rd, Ashgate, Chesterfield | SK37K | 02/08/1990 | 1 | Adult | vc57_danes_bc_data |
| Deerlands Rd, Ashgate, Chesterfield | SK37K | 02/08/1990 | 1 | Adult | vc57_danes_bc_data |
| Skinner St, Creswell, Worksop | SK57H | 04/08/1988 | 1 | Adult | vc57_danes_bc_data |
| Skinner St, Creswell, Worksop | SK57H | 05/07/1983 | 1 | Adult | vc57_danes_bc_data |
| Barnard Ave, Coal Aston | SK37U | 01/01/1981 | 1 | Adult | vc57_danes_bc_data |
| Barnard Ave, Coal Aston | SK37U | 01/01/1981 | 1 | Adult | vc57_danes_bc_data |
| Church St,Holloway,Matlock | SK35I | 10/07/1979 | 2 | Adult | vc57_danes_bc_data |
| Whitwell Wood, Whitwell, Worksop (site not precise) | SK57J | 09/07/1977 | 1 | Adult | vc57_danes_bc_data |
| John St, Clay Cross (garden site assumed) | SK36W | 18/08/1962 | 2 | Adult | vc57_danes_bc_data |
| John St, Clay Cross (garden site assumed) | SK36W | 13/07/1960 | 1 | Adult | vc57_danes_bc_data |
| Froggatt Edge, Calver (site not precise) | SK27N | 18/08/1951 | 1 | Adult | vc57_danes_bc_data |