49.084 BF1045  –  Tortricidae –  Tortricinae – Acleris notana – Tawny Birch Tortrix – (Donovan, 1806) Adult Micro:  CAT 4 – Gen. Det. Required – Gen-Det-Reqd       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Green –  Rare / Uncommon / Scarce   
Taxonomy:   Micro   >>  Tortricidae  >> Tortricinae
** Identification write-up required **
Other Name/s: Rusty Birch Button
Acleris tripunctana
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Acleris ferrugana(Tawny Oak Tortrix)
Distribution:  (Last record: 11 September 2012 at Swadlincote )  –  Likely uncommon due to most records being aggregated as A.ferrugana/notana – Harrison & Sterling recorded 1981-1982 and one 14/4/1972 Holloway. DaNES list 12 records 2003-2012 and one 1998 Ticknall – IRecord show 32 all aggregated
Flight Period: January /  February /  March /  April /  June /  July /  September /  October /  November /  December /  –  Two generations June – July and then second September over winters to following Spring. Moth Activity: Cathemeral   – and is attracted to light Photographed: No –  Photographed By: Not Recorded
*** Last updated on 26 July 2025 by TD ***
Wingspan: 15-19mm
Food Plant: Birch, Alder and Bog Myrtle
Last Recorded Year: 2012
Last Recorded By – The late Dave Budworth
Last Recorded General Area – Swadlincote

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Distribution Map for Acleris notana

Found 12 records
    ↳ 0 from After 2025
    ↳ 0 from 2020 - 2024
    ↳ 12 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 – Acleris notana

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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: Acleris notana
( data includes both Larvae and Adult Stages )
No data returned from the database.

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


First/Last Recorded Dates: Acleris notana
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: Acleris notana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Acleris notana
AGR: -4.41%   |   Total % Change: -33.3%


CUSUM Analysis: Acleris notana
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 20 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.
Peak (best year) Trough (worst year) Growth periods Decline periods
Population peaked around 2004, reaching above average levels. The lowest population point occurred near 2012, 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: Acleris notana
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Acleris notana
( 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 - Acleris notana – 12 records available

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

TaxonSite NameTetradYearDateCountStageSource
Acleris notanaWood Lane,Newhall,SwadlincoteSK22V201209/11/20121Adultvc57_danes_bc_data
Acleris notanaMidway Rd,Midway,SwadlincoteSK32A201223/02/20121Adultvc57_danes_bc_data
Acleris notanaGlossop (Shire Hill Quarry)SK09M200822/07/20081Adultvc57_danes_bc_data
Acleris notanaForemark Resr (pumping station), TicknallSK32H200629/10/20061Adultvc57_danes_bc_data
Acleris notanaForemark Resr, TicknallSK32H200509/07/20051Adultvc57_danes_bc_data
Acleris notanaForemark Resr, TicknallSK32H200406/11/20043Adultvc57_danes_bc_data
Acleris notanaCarvers Rocks, Hartshorne, SwadlincoteSK32G200429/03/20041Adultvc57_danes_bc_data
Acleris notanaForemark Resr, TicknallSK32H200318/11/20031Adultvc57_danes_bc_data
Acleris notanaRobin Wood (centre area track), TicknallSK32M200318/11/20033Adultvc57_danes_bc_data
Acleris notanaCarvers Rocks (old toilet block area), Hartshorne, SwadlincoteSK32G200328/11/20031Adultvc57_danes_bc_data
Acleris notanaForemark Resr (orange hill wood area), TicknallSK32H200316/09/20031Adultvc57_danes_bc_data
Acleris notanaCalke Park (Poker's Leys), TicknallSK32L199813/02/19981Adultvc57_danes_bc_data

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