49.172 BF1073  –  Tortricidae –  Olethreutinae – Phiaris schulziana – Large Marble – (Fabricius, [1777]) Adult Micro:  CAT 1 – Distinctive Species –       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Green –  Rare / Uncommon / Scarce        day-flying – Day-flying
Taxonomy:   Micro   >>  Tortricidae  >> Olethreutinae
ID Difficulty:  green  – easy to identify, generally distinctive and unlikely to be confused with other species.
ID pointers: Forewing reddish-brown to orangey-brown, variably speckled black, with narrow white cross-bands or spots. Very attractively marked.
Distribution:  (First record: 1949 )  –  (Last record: 3 September 2023 at Buxton )  –  Status uncertain – one record in Harrison & Sterling -1949. Since 2011 there have been five records, then two other records in 2023 from the north of the county. Would expect it to be common on the heather moorlands of Derbyshire. Most probably under-recorded.
Flight Period: June /  July /  August /  September /  –  On the wing during June – September. Flies late afternoon and evening. Easily disturbed during the day from heather. Moth Activity: Nocturnal  Crepuscular   – but can be disturbed during the day Photographed: Yes –  Photographed By: Steve Orridge  © All Rights Reserved
*** Last updated on 15 July 2025 by TD ***
Wingspan: 14-25mm
Food Plant: Crowberry (Empetrum nigrum) and Heather (Calluna vulgaris).
Last Recorded Year: 2023
First Recorded Year: 1949
Last Recorded By – Steve Orridge
Last Recorded General Area – Buxton

IMAGES BELOW:  Combs, Derbyshire – Steve Orridge© 

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Distribution Map for Phiaris schulziana

Found 9 records
    ↳ 2 from After 2025
    ↳ 2 from 2020 - 2024
    ↳ 5 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 – Phiaris schulziana

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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: Phiaris schulziana
( data includes both Larvae and Adult Stages )

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


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


CUSUM Analysis: Phiaris schulziana
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 2025, reaching above average levels. The lowest population point occurred near 2023, 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: Phiaris schulziana
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Phiaris schulziana
( 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 - Phiaris schulziana – 9 records available

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

TaxonSite NameTetradYearDateCountStageSource
Phiaris schulzianaLadycroft Ave, BuxtonSK07S202513/06/20251adultvc57_irecords_extract
Phiaris schulzianaGrinds BrookSK08Y202516/05/20251adultvc57_irecords_extract
Phiaris schulzianaDerbyshire, UKSK07N202303/09/20231Adultvc57_irecords_extract
Phiaris schulzianaReeve Edge QuarriesSK06E202317/06/20231adultvc57_irecords_extract
Phiaris schulzianaBuxton SK, UKSK07S201814/08/20181Adultvc57_irecords_extract
Phiaris schulzianaBuxton SK, UKSK07S201313/07/20131Adultvc57_irecords_extract
Phiaris schulzianaLadycroft AveSK07S201326/06/20131adultvc57_irecords_extract
Phiaris schulzianaAxe Edge Moor, BuxtonSK06J201219/06/20121Adultvc57_danes_bc_data
Phiaris schulzianaAxe Edge Moor, BuxtonSK07F201102/06/20111Adultvc57_danes_bc_data

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