– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Rare / Uncommon / Scarce
– easy to identify, generally distinctive and unlikely to be confused with other species.ID pointers: Has a net-like pattern over a purplish-brown forewing with darker and leaden grey speckling. At about one half there is a dark purplish-brown cross-band.
Distribution: (Last record: 16 May 2025 at Chunal Moor ) – Nationally Scarce B – A species totally restricted to the high moorlands of Derbyshire where Cowberry grows (the food plant) – It seems to prefer undisturbed moorland that has not been burnt and where the moorland has not been heavily managed for grouse. It appears that the species is localised in small colonies on the moorlands where it has been found. I suspect it has been under recorded but as it is so restricted on habitat, I have graded it as uncommon.
General Comment: None *** Last updated on 2 October 2025 by RP ***
Last Recorded Year: 2025
Last Recorded By – Christian Heintzen
Last Recorded General Area – Chunal Moor
Selected Images: 16th may 2025 adult – Chunal Moor – Christian Heintzen© / 18th & 19th January 2025 – Bray Clough – Christian Heintzen©
Image Gallery
Distribution Map for Stictea mygindiana
Found 18 records
↳ 15 from After 2025
↳ 1 from 2020 - 2024
↳ 2 from Before 2020
↳ 15 from After 2025
↳ 1 from 2020 - 2024
↳ 2 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 – Stictea mygindiana
⚠️ 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:
Stictea mygindiana
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Stictea mygindiana
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Stictea mygindiana
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: Stictea mygindiana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Stictea mygindiana
AGR: 0.74% | Total % Change: 14.3%
CUSUM Analysis: Stictea mygindiana
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 22 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: Stictea mygindiana
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Stictea mygindiana
Stictea mygindiana
( 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 - Stictea mygindiana – 18 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Glossop, Chunal Moor | SK09K | 16/05/2025 | 4 | adult | vc57_irecords_extract |
| Leygatehead & Middle Moor above Little Hayfield | SK08P | 11/04/2025 | 5 | Leaf-mine | vc57_irecords_extract |
| Leygatehead & Middle Moor above Little Hayfield | SK08P | 11/04/2025 | 15 | adult | vc57_irecords_extract |
| Kinder Scout, western slopes below Kinder Downfall | SK08U | 12/03/2025 | 20 | larva | vc57_irecords_extract |
| Kinder Scout, western slopes below Kinder Downfall | SK08U | 12/03/2025 | 5 | larva | vc57_irecords_extract |
| Chunal Moor, Burnt Hill | SK09K | 06/03/2025 | 20 | Larva | vc57_irecords_extract |
| Chunal Moor, Harry Hut | SK09K | 06/03/2025 | 1 | Larva | vc57_irecords_extract |
| Lightwood, Buxton | SK07M | 28/02/2025 | 1 | Larva | vc57_irecords_extract |
| COMBS MOSS | SK07N | 28/02/2025 | 10 | larva | vc57_irecords_extract |
| Upper Derwent Valley, Barrow Stones | SK19I | 24/02/2025 | 1 | Larva | vc57_irecords_extract |
| Upper Derwent Valley, Far Small Clough | SK19J | 24/02/2025 | 1 | Larva | vc57_irecords_extract |
| Upper Derwent Valley, Far Small Clough | SK19J | 24/02/2025 | 1 | Larva | vc57_irecords_extract |
| Combs Moss | SK07T | 22/02/2025 | 5 | larva | vc57_irecords_extract |
| Combs Moss, Buxton | SK07T | 21/02/2025 | 10 | larva | vc57_irecords_extract |
| Bray Clough | SK09K | 17/01/2025 | 1 | Larva | vc57_irecords_extract |
| Blacka Moor | SK28V | 30/05/2021 | 1 | adult | vc57_irecords_extract |
| Millstone Edge,Hathersage | SK28K | 04/06/2010 | 1 | Adult | vc57_danes_bc_data |
| Beeley Moor, Beeley | SK26Y | 06/06/2007 | 7 | Adult | vc57_danes_bc_data |