– click for Adult Macro Verification Guidelines
– Generally Common / Widespread
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required. ID pointers: See detailed document by Christian Heintzen here – Identifying Epiritas by octavals and wing patterning
An Epirrita moth in late August on the upland moors is almost certain to be this species.
Distribution: A resident that is widely distributed and locally common in upland areas of Derbyshire.
*** Last updated on 12 October 2025 by TD ***
Blue-coded] moths are not stored on the website at this current time. Selected Images: Glossop, Long Clough & Sawmoor Plantation, Derbyshire – Christian Heintzen ©
Image Gallery
Distribution Map for Epirrita filigrammaria
Found 50 records
↳ 0 from After 2025
↳ 9 from 2020 - 2024
↳ 41 from Before 2020
↳ 0 from After 2025
↳ 9 from 2020 - 2024
↳ 41 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 – Epirrita filigrammaria
⚠️ 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:
Epirrita filigrammaria
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Epirrita filigrammaria
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Epirrita filigrammaria
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: Epirrita filigrammaria
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Epirrita filigrammaria
AGR: -1.75% | Total % Change: -33.3%
CUSUM Analysis: Epirrita filigrammaria
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 19 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: Epirrita filigrammaria
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Epirrita filigrammaria
Epirrita filigrammaria
( 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 - Epirrita filigrammaria – 50 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Glossop, Hague Street, Hay meadow | SK09G | 18/09/2024 | 1 | adult | vc57_irecords_extract |
| Glossop, Gnat Hole Rough Fields | SK09L | 19/09/2024 | 1 | adult | vc57_irecords_extract |
| Glossop, Gnat Hole Rough Fields | SK09L | 23/09/2024 | 4 | adult | vc57_irecords_extract |
| Derbyshire Wild Life Trust Long Clough | SK09G | 04/10/2023 | 1 | adult | vc57_irecords_extract |
| Derbyshire Wild Life Trust Long Clough | SK09G | 06/10/2023 | 1 | adult | vc57_irecords_extract |
| Glossop, Hague Street, Hay meadow | SK09G | 05/09/2022 | 1 | adult | vc57_irecords_extract |
| Glossop, Shawmoor Plantation | SK09F | 06/09/2022 | 4 | adult | vc57_irecords_extract |
| Glossop, Bray Clough | SK09K | 09/09/2022 | 1 | adult | vc57_irecords_extract |
| Derbyshire Wild Life Trust Long Clough | SK09G | 21/09/2022 | 1 | adult | vc57_irecords_extract |
| Ladycroft Ave | SK07S | 06/09/2013 | 1 | adult | vc57_irecords_extract |
| Blacka Moor, Totley, Sheffield | SK28V | 20/08/2011 | 10 | Adult | vc57_danes_bc_data |
| The Mays,Malthouse Lane,Froggatt | SK27N | 05/09/2003 | 1 | Adult | vc57_danes_bc_data |
| The Hollies,Station Rd,Darley Dale | SK26R | 01/09/2003 | 1 | Adult | vc57_danes_bc_data |
| The Mays,Malthouse Lane,Froggatt | SK27N | 05/09/2003 | 1 | Adult | vc57_danes_bc_data |
| Beeley Moor, Beeley | SK26Y | 25/08/2001 | 3 | Adult | vc57_danes_bc_data |
| Beeley Moor, Beeley | SK26Y | 25/08/2001 | 3 | Adult | vc57_danes_bc_data |
| Blacka Moor,Totley | SK28V | 25/08/1999 | 1 | Adult | vc57_danes_bc_data |
| Slagmill Plantation, Beeley Moor (site not precise) | SK36E | 22/05/1997 | 20 | Larvae | vc57_danes_bc_data |
| Beeley Triangle, Beeley Moor (site not precise) | SK26Y | 25/05/1997 | 16 | Larvae | vc57_danes_bc_data |
| Beeley Moor, Beeley (site not precies) | SK26Z | 26/08/1994 | 9 | Adult | vc57_danes_bc_data |
| Ladycroft Ave, Buxton | SK07S | 15/09/1993 | 1 | Adult | vc57_danes_bc_data |
| Ladycroft Ave, Buxton | SK07S | 01/09/1993 | 1 | Adult | vc57_danes_bc_data |
| Woodlands, Combs, Chapel en le Frith | SK07P | 11/09/1991 | 1 | Adult | vc57_danes_bc_data |
| Beeley Moor, Beeley (site not precies) | SK26Z | 25/08/1991 | 1 | Adult | vc57_danes_bc_data |
| Slagmill Plantation, Beeley Moor (site not precise) | SK36E | 31/08/1991 | 1 | Adult | vc57_danes_bc_data |
| Woodlands, Combs, Chapel en le Frith | SK07P | 20/10/1990 | 1 | Adult | vc57_danes_bc_data |
| Woodlands, Combs, Chapel en le Frith | SK07P | 14/09/1990 | 2 | Adult | vc57_danes_bc_data |
| Beeley Moor, Beeley (site not precies) | SK26Z | 26/08/1990 | 1 | Adult | vc57_danes_bc_data |
| Beeley Moor, Beeley (site not precies) | SK26Z | 18/05/1990 | 1 | Larvae | vc57_danes_bc_data |
| Beeley Moor, Beeley (site not precise) | SK26Z | 18/05/1990 | 1 | Larvae | vc57_danes_bc_data |
| Wraggs Quarry, Rowsley | SK26Y | 26/05/1988 | 1 | Larvae | vc57_danes_bc_data |
| Wragg's Quarry, Beeley Moor, Beeley | SK26Y | 26/05/1988 | 1 | Larvae | vc57_danes_bc_data |
| Cressbrook Dale, Little Longstone | SK17R | 23/08/1986 | 1 | Adult | vc57_danes_bc_data |
| Wragg's Quarry,Rowsley Moor | SK26Y | 05/09/1981 | 1 | Adult | vc57_danes_bc_data |
| Wragg's Quarry, Beeley Moor, Beeley | SK26Y | 05/09/1981 | 1 | Adult | vc57_danes_bc_data |
| Slagmill Plantation,Beeley Moor | SK36E | 29/08/1979 | 2 | Adult | vc57_danes_bc_data |
| Wragg's Quarry,Rowsley Moor | SK26Y | 01/06/1975 | 1 | Larvae | vc57_danes_bc_data |
| Wragg's Quarry, Beeley Moor, Beeley | SK26Y | 01/06/1975 | 1 | Larvae | vc57_danes_bc_data |
| Beeley Moor, Beeley (site not precies) | SK26Z | 26/05/1974 | 1 | Larvae | vc57_danes_bc_data |
| Beeley Moor, Beeley (site not precies) | SK26Z | 01/09/1973 | 2 | Adult | vc57_danes_bc_data |
| Wragg's Quarry,Rowsley Moor | SK26Y | 31/08/1968 | 1 | Adult | vc57_danes_bc_data |
| Wragg's Quarry, Beeley Moor, Beeley | SK26Y | 31/08/1968 | 1 | Adult | vc57_danes_bc_data |
| Slagmill Plantation,Beeley Moor | SK36E | 25/08/1967 | 1 | Adult | vc57_danes_bc_data |
| Gladwin's Mark, Beeley Moor | SK36D | 01/09/1964 | 1 | Adult | vc57_danes_bc_data |
| Hollingworth Clough, Hayfield (site not precise) | SK08P | 14/09/1964 | 9 | Adult | vc57_danes_bc_data |
| Gladwin's Mark, Beeley Moor | SK36D | 10/09/1960 | 1 | Adult | vc57_danes_bc_data |
| Moorend, Beeley, Matlock | SK26T | 05/09/1959 | 1 | Adult | vc57_danes_bc_data |
| Moorend, Beeley, Matlock | SK26T | 19/09/1959 | 2 | Adult | vc57_danes_bc_data |
| Moorend, Beeley | SK26T | 05/09/1959 | 1 | Adult | vc57_danes_bc_data |
| Moorend, Beeley | SK26T | 19/09/1959 | 2 | Adult | vc57_danes_bc_data |