Acleris comariana       Acleris laterana/comariana
49.066 BF1038  –  Tortricidae –  Tortricinae – Acleris laterana – Dark-marked Tortrix – (Fabricius, 1794) Adult Micro:  CAT 4 – Gen. Det. Required – Gen-Det-Reqd       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Blue –  Generally Common / Widespread   
Taxonomy:   Micro   >>  Tortricidae  >> Tortricinae
Other Name/s: Dark-triangle Button
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  A. comariana
ID pointers: Variable – Forewing can be a range of colours, silvery grey; grey; pale yellowish brown; reddish brown, with large triangular costal blotches. This species is difficult to separate from A. comariana.
Distribution:  Common in widely scattered areas throughout the lowland areas of the county. 
Flight Period: August /  September /  –  On the wing during August – September. Moth Activity: Nocturnal   – and is attracted to light Photographed: Yes –  Photographed By: Tony Davison  © All Rights Reserved
*** Last updated on 7 May 2025 by RP ***
Wingspan: 15-20mm
 Food Plant: Rosaceous trees and shrubs, Salix and Vaccinium.
Recorded dates for Common [Blue code Blue-coded] moths are not stored on the website at this current time.
IMAGES BELOW:  Melbourne, Derbyshire – Tony Davison©

49.066 BF1038 - Tortricidae - Tortricinae - Acleris laterana
Acleris laterana – Melbourne, Derbyshire – Tony Davison
49.066 BF1038 - Tortricidae - Tortricinae - Acleris laterana

49.066 BF1038 - Acleris laterana 49.066 BF1038 - Acleris laterana - Melbourne - June 2020 MelbourneTony Davison©

Distribution Map for Acleris laterana

Found 45 records
    ↳ 7 from After 2025
    ↳ 8 from 2020 - 2024
    ↳ 30 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 laterana

⚠️ 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.

Visit NBN Site


Monthly Records By Year: Acleris laterana
( data includes both Larvae and Adult Stages )

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


First/Last Recorded Dates: Acleris laterana
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 laterana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Acleris laterana
AGR: 0.61%   |   Total % Change: 14.3%


CUSUM Analysis: Acleris laterana
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 9 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 2009, reaching above average levels. The lowest population point occurred near 2006, 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 laterana
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Acleris laterana
( 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 laterana – 45 records available

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

Site NameTetradDateCountStageSource
Staveley DerbyshireSK47H01/08/20251adultvc57_irecords_extract
Dinting Nature ReserveSK09C06/08/20251adultvc57_irecords_extract
Staveley DerbyshireSK47H15/08/20251adultvc57_irecords_extract
Shaw Farm, New Mills VCSJ98Y12/08/20251adultvc57_irecords_extract
Staveley garden SYASK47H25/07/20252adultvc57_irecords_extract
Ockbrook, DerbyshireSK43I26/07/20251adultvc57_irecords_extract
Staveley DerbyshireSK47H30/07/20251adultvc57_irecords_extract
Buxton SK, UKSK07S09/09/20231Adultvc57_irecords_extract
Hathersage, Derbyshire, UKSK28F11/11/20221adultvc57_irecords_extract
Buxton SK, UKSK07S20/08/20221Adultvc57_irecords_extract
Hathersage, Derbyshire, UKSK28F20/08/20222adultvc57_irecords_extract
Buxton SK, UKSK07S26/08/20211Adultvc57_irecords_extract
Hathersage, Derbyshire, UKSK28F20/08/20213adultvc57_irecords_extract
Buxton SK, UKSK07S04/09/20201Adultvc57_irecords_extract
Wood Lane, Newhall, SwadlincoteSK22V18/09/20201adultDanes_2019-2021
Wood Lane,Newhall,SwadlincoteSK22V05/08/20161Adultvc57_danes_bc_data
Wood Lane,Newhall,SwadlincoteSK22V04/09/20151Adultvc57_danes_bc_data
Wood Lane,Newhall,SwadlincoteSK22V21/08/20151Adultvc57_danes_bc_data
Erewash Fields, Long EatonSK53B09/08/20131Adultvc57_danes_bc_data
Wood Lane,Newhall,SwadlincoteSK22V16/08/20131Adultvc57_danes_bc_data
Ladycroft Ave,BuxtonSK07S03/09/20124Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A01/09/20121Adultvc57_danes_bc_data
Ladycroft Ave,BuxtonSK07S31/08/20121Adultvc57_danes_bc_data
Wood Lane,Newhall,SwadlincoteSK22V17/08/20121Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R16/08/20111Adultvc57_danes_bc_data
Padley Gorge, Nether PadleySK27P19/08/20101Adultvc57_danes_bc_data
Carvers Rocks, Hartshorne, SwadlincoteSK32G19/09/20091Adultvc57_danes_bc_data
Midway, Derbys.SK32A03/08/20093adultvc57_irecords_extract
Bristol Rd,IlkestonSK44R12/08/20091Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A03/08/20093Adultvc57_danes_bc_data
Midway, Derbys.SK32A25/07/20091adultvc57_irecords_extract
Midway Rd,Midway,SwadlincoteSK32A25/07/20091Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S14/09/20081Adultvc57_danes_bc_data
Glossop (Shire Hill Quarry)SK09M01/09/20081Adultvc57_danes_bc_data
Calver MarshSK27M19/09/20081Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A02/08/20081Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A15/08/20081Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S29/08/20081Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S08/09/20071Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S10/08/20071Adultvc57_danes_bc_data
Carvers Rocks,Hartshorne,Swadlincote (old toilet block area)SK32G11/08/20078Adultvc57_danes_bc_data
Flash Lane,Beeley MoorSK26X03/08/20072Adultvc57_danes_bc_data
Main St,Kings Newton,MelbourneSK32Y29/08/20061Adultvc57_danes_bc_data
Pleasley Park (centre clearing)SK56H04/10/20051Adultvc57_danes_bc_data
Whitwell Wood (centre area), Whitwell, WorksopSK57J23/08/20031Adultvc57_danes_bc_data

Acleris comariana       Acleris laterana/comariana

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