– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Uncertain/Unknown – Insufficient Data 
– Day-flying
** Identification write up required
**
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.Confusion Species: Endothenia oblongana (Plantain Marble); Endothenia marginana
(Bordered Marble)
ID pointers: On average larger than other two Endothenia species, as always some size differences do occur. Usually shows violet or greyish tones to tornal and basal areas of forewing
Distribution: (Last record: 5 November 2024 at Burton-upon-Trent ) – Uncertain but likely to be found where the food plant exists – Harrison & Sterling list specimens taken from Teasel heads 1929, 1981, 1982, 1983. DaNES – a record from Hall Dale Quarry 9/7/2002 & a record from Swadlincote 30/5/2005 – both refer to adults reared from seed heads. iRecord one from Breaston 13/8/2021 (No Gen Det) & NBN atlas one from Calke Park 1969.
*** Last updated on 2 October 2025 by RP ***
Last Recorded Year: 2024
Last Recorded By – Graham Finch
Last Recorded General Area – Burton-upon-Trent
Selected Images:
Image Gallery
No gallery images found for this moth.
Distribution Map for Endothenia gentianaeana
Found 6 records
↳ 2 from After 2025
↳ 2 from 2020 - 2024
↳ 2 from Before 2020
↳ 2 from After 2025
↳ 2 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 – Endothenia gentianaeana
⚠️ 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:
Endothenia gentianaeana
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Endothenia gentianaeana
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Endothenia gentianaeana
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: Endothenia gentianaeana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Endothenia gentianaeana
AGR: -2.97% | Total % Change: -50%
CUSUM Analysis: Endothenia gentianaeana
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 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 2002, 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: Endothenia gentianaeana
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Endothenia gentianaeana
Endothenia gentianaeana
( 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 - Endothenia gentianaeana – 6 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Markham Vale South Tip | SK47K | 17/07/2025 | 1 | adult | vc57_irecords_extract |
| Drakelow N.R. | SK22F | 21/05/2025 | 1 | adult | vc57_irecords_extract |
| Burton upon Trent | SK32P | 05/11/2024 | 1 | larva | vc57_irecords_extract |
| Woodland Ave | SK43R | 13/08/2021 | 1 | adult | vc57_irecords_extract |
| Wood Lane,Newhall,Swadlincote | SK22V | 30/05/2005 | 1 | Adult | vc57_danes_bc_data |
| Hall Dale Quarry,Matlock | SK26V | 09/07/2002 | 2 | Adult | vc57_danes_bc_data |