49.114 BF941  –  Tortricidae –  Tortricinae – Aethes hartmanniana – Lesser Marbled Straw – (Clerck, 1759) Adult Micro:  CAT 3 – Very Rare/Scarce/Migrant/Adventive – confusion with leaf mines       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Brown –  Significant Record / Very Rare / Vagrant    
Taxonomy:   Micro   >>  Tortricidae  >> Tortricinae
Other Name/s: Scabious Conch
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  A. piercei
ID pointers: Holds forewings at rest in a “Tent-like” fashion. A prominent central cross-band of bright brick-red chestnut, bordered either-side with white cross-bands. Overall forewing is pale brownish yellow, with orangey-brown or reddish-brown markings. 
Distribution:  (First record: 1 July 2017 at Pin Dale, Castleton )  –  (Last record: 2 June 2025 at Gang Mine / Chee Dale )  –  A rare species in the county, that is easily confused with A.piercei.(size is very important). Found on Small Scabious & Field Scabious in Limestone areas. There is one old very dubious record that was probably A.piercei, so this record by Ben Smart is potentially a first record for VC57 & Derbyshire. Clive Ashton recorded one on 21st May and 2 on 2nd June 2025 from Gang Mine, and Ian White recorded one from Chee Dale on 2nd June – 3rd,4th & 5th VC57 records.
Flight Period: June /  July /  August /  –  On the wing during June – August. Moth Activity: Nocturnal   – and is attracted to light Photographed: Yes –  Photographed By: Ben Smart, Clive Ashton, Ian White  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 11-17mm
Food Plant: Small scabious (Scabiosa columbaria) and Field scabious (Knautia arvensis).
Last Recorded Year: 2025
First Recorded Year: 2017
Last Recorded By – Ian White, Clive Ashton
Last Recorded General Area – Gang Mine / Chee Dale

Selected Images:  Pin Dale, Castleton, Derbyshire – Ben Smart© / May 2025 Gang Mine- Clive Ashton©/ Chee Dale June 2025 – Ian White© / Gang Mine June 2025 – Clive Ashton©



Distribution Map for Aethes hartmanniana

Found 5 records
    ↳ 4 from After 2025
    ↳ 0 from 2020 - 2024
    ↳ 1 from Before 2020
Flying
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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 – Aethes hartmanniana

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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.

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Monthly Records By Year: Aethes hartmanniana
( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Aethes hartmanniana
( data is based on 'Adult' stage records only. )


First/Last Recorded Dates: Aethes hartmanniana
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: Aethes hartmanniana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Aethes hartmanniana
AGR: -3.86%   |   Total % Change: -56.3%


CUSUM Analysis: Aethes hartmanniana
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 24 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 2004, reaching above average levels. The lowest population point occurred near 2025, 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: Aethes hartmanniana
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Aethes hartmanniana
( 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 - Aethes hartmanniana – 5 records available

Listed by Year - descending - scroll across to see all table columns

Site NameTetradDateCountStageSource
Gang Mine, CromfordSK25X02/06/20253adultvc57_irecords_extract
Chee Dale (Mosley Farm bank)SK17B02/06/20251adultvc57_irecords_extract
Gang Mine, CromfordSK25X23/06/20252adultvc57_irecords_extract
Gang Mine, CromfordSK25X21/05/20251adultvc57_irecords_extract
Bonsall MoorSK25T01/06/20044Adultvc57_danes_bc_data

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