Incurvaria oehlmanniella - 15th May 2024 - Long Clough - Christian Heintzen
8.003 BF131  – Purple-tinged Cutter  – Incurvaria oehlmanniella  – (Hübner, 1796)
Adult Micro:  CAT 2 – Can be confused with other species –       Leaf-miner:  CAT L – The leaf or a Photo required – reared and possibly dissected      
PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Black – Uncertain/Unknown – Insufficient Data        purple – Leaf-miner     day-flying – Day-flying
Taxonomy:   Micro   >>  Incurvariidae  >> Incurvariinae
Other Name/s: Common Leaf-cutter
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Incurvaria masculella
ID pointers: Easily confused with I. masculella – The males of this species have simple antennae – An attractively marked little moth. The yellowish marking on the costa is closer to the wing tip. If present on masculella it is closer to the head than the opposing tornal spot.
Distribution:  (Last record: 22 February 2025 at Longdendale, Wildboar Clough )  –  Uncertain due to few records – One in 1971 then two in 2024 – likely to be found in localised colonies on the upland moors where there are Bilberry and Cloudberry growing.
General Comment: None
Flight Period: June /  July –  One generation in June – July Mine Period:  July /  August
Mine Period Additional: The larvae feed on bilberry and cloudberry, and at first they mine the leaves creating a small blotch mine elongated to form a linear mine, then cut out a portable case and dropping to the ground. Here they feed on dead leaves.
Mine ID Difficulty: Not Recorded
Mine Type/s: Not Recorded
Mine Feeding Method/s: Not Recorded
Mine Comment: None.
Moth Activity: Cathemeral  Photographed: Yes –  Photographed By: Christian Heintzen  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 14mm
Food Plant: Bilberry and Cloud Berry
Last Recorded Year: 2024
Last Recorded By – Christian Heintzen
Last Recorded General Area – Longdendale, Wildboar Clough

Selected Images:  

Longdendale – 2024 – Christian Heintzen©



Temporal Distribution Chart
Adults: (between 1919 - 2025)
(click legend below to show/hide datasets)

Distribution Map for Incurvaria oehlmanniella

Found 13 records
    ↳ from 2026+
    ↳ 6 from 2020 - 2025
    ↳ 7 from Before 2020
Flying
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Mining
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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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.


NBN Atlas UK Distribution for – Incurvaria oehlmanniella

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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: Incurvaria oehlmanniella
( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Incurvaria oehlmanniella
( data is based on 'Adult' stage records only )

First/Last Recorded Dates: Incurvaria oehlmanniella
Adult-only & Anything [Larvae, Pupae, Adult, Mines]

Shading shows moth presence between dates

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Recordings By Year: Incurvaria oehlmanniella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Incurvaria oehlmanniella
AGR: 2.58%   |   Total % Change: 75%

Hectad (10kmx10km) Coverage: Incurvaria oehlmanniella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Incurvaria oehlmanniella

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 2020-2026.

Mine Periods – Indicative –vs– Recorded Data
Incurvaria oehlmanniella
( data includes both Larvae and Adult Stages )

Mine 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 mine periods [month/s]. The coloured lines represent the actual months seen mining, from site observation records received between 2020-2026.

Records Behind the Map and Charts - Incurvaria oehlmanniella – 13 records available

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

Site NameTetradDateCountStageRecorderSourceRecordKey
Longdendale, Wildboar Clough WoodlandSK09U20/05/20251adultHeintzen, Christianvc57_irecords_extractiBRC43979244
Markham Vale South Tip , DerbyshireSK47K18/05/20251adultMorris, Sidvc57_irecords_extractiBRC41676772
Markham Vale DerbyshireSK47K11/05/20254adultMorris, Sid ( M.V. Trapping group )vc57_irecords_extractiBRC41542436
PoolsbrookSK47G01/05/20251adultClarke, Julianvc57_irecords_extractiBRC48623465
Longdendale, Wildboar CloughSK09U19/05/20241adultHeintzen, Christianvc57_irecords_extractiBRC36371785
Derbyshire Wild Life Trust Long CloughSK09G15/05/20241adultHeintzen, Christianvc57_irecords_extractiBRC36371707
Hardhurst Rd, Alvaston, DerbySK33W24/05/20101AdultI. Gardlervc57_danes_bc_dataLC000334001CP07J
Dimminsdale NR, Calke, TicknallSK32Q03/06/20031AdultBUDWORTH, Mr D., WILLIAMS, Mr M.J., WILLIAMS, Mrs vc57_danes_bc_dataLC000334001COR1B
Slagmill Plantation, Beeley Moor (site not precise)SK36E14/06/19941AdultVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001COVA4
Hell Bank Plantation, Beeley (site not precise)SK26Z23/05/19711AdultVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001COZJ8
Repton (site not precise)SK32B01/06/19271AdultVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001COQ91
Breadsall Moor, Breadsall, Derby (site not precise)SK33U31/05/19191AdultVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001CP9U5
Repton (site not precise)SK32B01/01/19061AdultUnknownvc57_danes_bc_dataLC000334001CP9TZ

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