49.149 BF1092 - Tortricidae - Olethreutinae - Apotomis turbidana

49.149 BF1092 – Tortricidae – Olethreutinae – Apotomis turbidana – White-shouldered Marble – Hübner, [1825]

Adult Micro: CAT 2 – Confusion Species –

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– click for Specific Verification Guidelines

– Uncertain/Unknown – Insufficient Data

Taxonomy: Micro >> Tortricidae >> Olethreutinae

ID Difficulty: amber

– care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species: apotomis lineana Apotomis sororculana

ID pointers: Two thirds of the forewing are silver blue-grey with final third whitish. A broad dark central cross band, mixed with brown, grey and black, with a slight hook shaped indentation. tufted scales towards the basal area.

Distribution: (First record: 1892 ) – (Last record: 27 June 2024 at Chaddesden, Derby ) – With so few records since the 1980’s it is difficult to predict the current status in VC57 and Derbyshire. It should be widespread across the county where there is Birch.
Flight Period: May / June / July / – On the wing during late May – July. Moth Activity: Nocturnal – and is attracted to light Photographed: Yes – Photographed By: Will Soar, Dave Evans © All Rights Reserved
*** Last updated on 7 May 2025 by RP ***

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Wingspan: 19-21mm
Food Plant: Birch (Betula).

Last Recorded Year: 2024

First Recorded Year: 1892

Last Recorded By – Martin Roome

Last Recorded General Area – Chaddesden, Derby

IMAGES BELOW: Kings Newton, Derbyshire – Will Soar© / Belper – Dave Evans©

Apotomis turbidana – 29th June 2004 – Kings Newton – Will Soar

Apotomis turbidana – 29th June 2004 – Kings Newton – Will Soar

Apotomis turbidana – 25th June 2023 -Belper – Dave Evans

no images were found

Maps
Charts
Other

Distribution Map for Apotomis turbidana
Found 25 records
    ↳ 1 from After 2025
    ↳ 3 from 2020 - 2024
    ↳ 21 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.

******* Choose ONLY one at a time, of either Monad, Tetrad or Hectad Distribution - each has it's own set of data. Also, the distribution maps cover ALL recorded data. *******

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.
Land-cover * shows the variety of land-cover within the VC57 area, based on the CORINE (Coordination of Information on the Environment) forty-four thematic classes of land-cover. This will show, to a greater or lesser degree, the number and variety of moths found in different land-cover types. The UK continues to operate within the Copernicus programme, with the UK Centre for Ecology & Hydrology (UKCEH) providing Corine Land Cover (CLC) datasets for the UK and its territories.

NBN Atlas UK Distribution for – Apotomis turbidana

⚠️ 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.

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Monthly Records By Year: Apotomis turbidana

( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Apotomis turbidana

( data is based on 'Adult' stage records only. )

First/Last Recorded Dates: Apotomis turbidana

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: Apotomis turbidana

( All data includes both Larvae and Adult Stages )

Annual Growth Rate (AGR): Apotomis turbidana

AGR: 0% | Total % Change: 0%

CUSUM Analysis: Apotomis turbidana

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 15 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 7 (July) to provide a full-year equivalent.

ⓘ Purple line rises = years better than average; falls = years worse than average.

Note – this chart is based on available records and information spanning the years below. It is based purely on trap counts and locations across the VC57 recording area. There has not been any detailed scientific analysis of the incidence and geographical context of this data, so any summaries regarding trends, population increases and declines, are a best assessment based on this scattered data. However, there are a great deal of records available, so any conclusions should not be dismissed, but rather considered in the spirit they were arrived at.

Peak (best year) Trough (worst year) Growth periods Decline periods

Population peaked around 2011, reaching above average levels. The lowest population point occurred near 2004, 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: Apotomis turbidana

( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Apotomis turbidana

( 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 - Apotomis turbidana – 25 records available

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

Taxon	Site Name	Tetrad	Year	Date	Count	Stage	Source
Apotomis turbidana	Derbyshire Wild Life Trust Long Clough	SK09G	2025	20/06/2025	1	adult	vc57_irecords_extract
Apotomis turbidana	South Wood	SK31U	2024	27/06/2024	3	adult	vc57_irecords_extract
Apotomis turbidana	Belper	SK34U	2023	25/06/2023	1	adult	vc57_irecords_extract
Apotomis turbidana	Wood Lane, Newhall, Swadlincote	SK22V	2021	01/07/2021	1	adult	Danes_2019-2021
Apotomis turbidana	The Meads, Shipley Park, Heanor	SK44H	2019	13/07/2019	1	adult	Danes_2019-2021
Apotomis turbidana	Ladycroft Ave, Buxton	SK07S	2019	28/06/2019	1	adult	vc57_irecords_extract
Apotomis turbidana	Clough Wood,Darley Dale	SK26K	2011	16/09/2011	1	Adult	vc57_danes_bc_data
Apotomis turbidana	Darley Bridge (Enthovens),Darley Dale	SK26R	2011	19/08/2011	2	Adult	vc57_danes_bc_data
Apotomis turbidana	Clough Wood,Darley Dale	SK26K	2011	27/07/2011	1	Adult	vc57_danes_bc_data
Apotomis turbidana	Clough Wood,Darley Dale	SK26K	2011	27/07/2011	12	Adult	vc57_danes_bc_data
Apotomis turbidana	School Close,Parkway Gardens,Darley Dale	SK26R	2011	15/06/2011	1	Adult	vc57_danes_bc_data
Apotomis turbidana	Whitesprings Plantation, Darley Dale	SK26X	2011	25/06/2011	1	Adult	vc57_danes_bc_data
Apotomis turbidana	Flash Lane,Beeley Moor	SK26X	2007	03/08/2007	2	Adult	vc57_danes_bc_data
Apotomis turbidana	Robin Wood	SK32M	2006	25/08/2006	4	Adult	vc57_irecords_extract
Apotomis turbidana	Robin Wood (centre area track), Ticknall	SK32M	2006	25/08/2006	4	Adult	vc57_danes_bc_data
Apotomis turbidana	Flash Lane,Beeley Moor	SK26X	2006	16/07/2006	5	Adult	vc57_danes_bc_data
Apotomis turbidana	Robin Wood	SK32M	2006	23/06/2006	1	Adult	vc57_irecords_extract
Apotomis turbidana	Robin Wood (centre area track), Ticknall	SK32M	2006	23/06/2006	1	Adult	vc57_danes_bc_data
Apotomis turbidana	Robin Wood (central track), Ticknall	SK32S	2005	02/09/2005	7	Adult	vc57_danes_bc_data
Apotomis turbidana	Leash Fen area, Clod Hill Moor, Baslow	SK27W	2005	28/08/2005	4	Adult	vc57_danes_bc_data
Apotomis turbidana	Main Street, Kings Newton	SK32Y	2004	29/06/2004	1	Adult	vc57_irecords_extract
Apotomis turbidana	Foremark Resr, Ticknall	SK32H	2004	25/06/2004	2	Adult	vc57_danes_bc_data
Apotomis turbidana	Clough Wood,Darley Dale	SK26K	2002	10/04/2002	1	Adult	vc57_danes_bc_data
Apotomis turbidana	Ticknall Limeyards,Ticknall	SK32R	1997	11/06/1997	1	Adult	vc57_danes_bc_data
Apotomis turbidana	Crich Chase, Ambergate (site not precise)	SK35L	1996	27/06/1996	1	Adult	vc57_danes_bc_data

Monthly Records By Year: Apotomis turbidana

( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Apotomis turbidana

( data is based on 'Adult' stage records only. )

First/Last Recorded Dates: Apotomis turbidana

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: Apotomis turbidana

( All data includes both Larvae and Adult Stages )

Annual Growth Rate (AGR): Apotomis turbidana

AGR: 0% | Total % Change: 0%

CUSUM Analysis: Apotomis turbidana

Hectad (10kmx10km) Coverage: Apotomis turbidana

( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Apotomis turbidana

( data includes Adult Stage only )

Records Behind the Map and Charts - Apotomis turbidana – 25 records available

– Uncertain/Unknown – Insufficient Data

Distribution Map for Apotomis turbidana

NBN Atlas UK Distribution for – Apotomis turbidana

– Uncertain/Unknown – Insufficient Data

Distribution Map for Apotomis turbidana

NBN Atlas UK Distribution for – Apotomis turbidana

Monthly Records By Year: Apotomis turbidana

( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Apotomis turbidana

( data is based on 'Adult' stage records only. )

First/Last Recorded Dates: Apotomis turbidana

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: Apotomis turbidana

( All data includes both Larvae and Adult Stages )

Annual Growth Rate (AGR): Apotomis turbidana

AGR: 0% | Total % Change: 0%

CUSUM Analysis: Apotomis turbidana

Hectad (10kmx10km) Coverage: Apotomis turbidana

( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded DataApotomis turbidana

( data includes Adult Stage only )

Records Behind the Map and Charts - Apotomis turbidana – 25 records available

Flight Periods – Indicative –vs– Recorded Data
Apotomis turbidana