49.021 BF987  –  Tortricidae –  Tortricinae – Ptycholomoides aeriferana – Yellow Larch Tortrix – (Herrich-Schäffer, 1851) Adult Micro:  CAT 1 – Distinctive Species –       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Black – Uncertain/Unknown – Insufficient Data   
Taxonomy:   Micro   >>  Tortricidae  >> Tortricinae
ID Difficulty:  green  – easy to identify, generally distinctive and unlikely to be confused with other species.
ID pointers: Quite distinctive. A pale golden yellow with purplish, blackish-brown markings, including a basal patch and a broad oblique cross-band, with a mark at the apex.
Distribution:  (Last record: 22 July 2024 at Torside Reservoir )  –  Only appears to be a scattering of 5 records on iRecord – 2004/2013/2014/2024. A species that is expanding its range northwards.
Flight Period: July /  August /  –  On the wing during July- August. Moth Activity: Nocturnal   – and is attracted to light Photographed: Yes –  Photographed By: Steve Orridge, Dave Evans  © All Rights Reserved
*** Last updated on 7 May 2025 by RP ***
Wingspan: 17-21mm
Food Plant: European larch (Larix decidua).
Last Recorded By – Dave Evans
Last Recorded General Area – Torside Reservoir

IMAGES BELOW:  Belper, Derbyshire – Dave Evans© 17/7/2024 / Buxton, Derbyshire – Steve Orridge© 

Distribution Map for Ptycholomoides aeriferana

Found 20 records
    ↳ 2 from After 2025
    ↳ 3 from 2020 - 2024
    ↳ 15 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 – Ptycholomoides aeriferana

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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.

Visit NBN Site


Monthly Records By Year: Ptycholomoides aeriferana
( data includes both Larvae and Adult Stages )

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


First/Last Recorded Dates: Ptycholomoides aeriferana
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: Ptycholomoides aeriferana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Ptycholomoides aeriferana
AGR: 0%   |   Total % Change: 0%


CUSUM Analysis: Ptycholomoides aeriferana
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.
Peak (best year) Trough (worst year) Growth periods Decline periods
Population peaked around 2025, reaching above average levels. The lowest population point occurred near 2024, 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: Ptycholomoides aeriferana
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Ptycholomoides aeriferana
( 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 - Ptycholomoides aeriferana – 20 records available

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

TaxonSite NameTetradYearDateCountStageSource
Ptycholomoides aeriferanaMarkham Vale South Tip , DerbyshireSK47K202524/07/20251adultvc57_irecords_extract
Ptycholomoides aeriferanaBelper, DerbyshireSK34N202519/06/20251adultvc57_irecords_extract
Ptycholomoides aeriferanaBelperSK34N202417/07/20241adultvc57_irecords_extract
Ptycholomoides aeriferanaTorside Reservoir northeast endSK09U202422/07/20241adultvc57_irecords_extract
Ptycholomoides aeriferanaAllestree, DerbySK33P202218/07/20221adultvc57_irecords_extract
Ptycholomoides aeriferanaFirestone Lane, MatlockSK36G201421/07/20141adultvc57_irecords_extract
Ptycholomoides aeriferanaLadycroft Ave, BuxtonSK07S201325/07/20131adultvc57_irecords_extract
Ptycholomoides aeriferanaDuffield Rd, Allestree, DerbySK34K201315/07/20131Adultvc57_danes_bc_data
Ptycholomoides aeriferanaRosliston (National Forest Centre), SwadlincoteSK21N201220/07/20121Adultvc57_danes_bc_data
Ptycholomoides aeriferanaDuffield Rd, Allestree, DerbySK34K201131/07/20111Adultvc57_danes_bc_data
Ptycholomoides aeriferanaSchool Close,Parkway Gardens,Darley DaleSK26R201120/07/20111Adultvc57_danes_bc_data
Ptycholomoides aeriferanaBiggin Dale, nr HartingtonSK15P201028/07/20101Adultvc57_danes_bc_data
Ptycholomoides aeriferanaFar Cross,Cavendish Park,MatlockSK36A200915/08/20091Adultvc57_danes_bc_data
Ptycholomoides aeriferanaFlash Lane,Beeley MoorSK26X200616/07/20061Adultvc57_danes_bc_data
Ptycholomoides aeriferanaFar Cross,Cavendish Park,MatlockSK36A200619/07/20061Adultvc57_danes_bc_data
Ptycholomoides aeriferanaToyota Site, BurnastonSK23V200428/07/20041Adultvc57_irecords_extract
Ptycholomoides aeriferanaEdgecote Drive,Newhall,SwadlincoteSK22V200413/07/20041Adultvc57_danes_bc_data
Ptycholomoides aeriferanaBurnaston (Toyota Plant NR), DerbySK23V200428/07/20041Adultvc57_danes_bc_data
Ptycholomoides aeriferanaThe Thorns, Laneside Drive, Low Leighton, New MillsSK08C199616/08/19961Adultvc57_danes_bc_data
Ptycholomoides aeriferanaLang Rd, Alvaston, DerbySK33R199427/07/19941Adultvc57_danes_bc_data

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