Phyllonorycter tristrigella - 30th July 2018 - Coombs Dale- Andrew Watchorn
15.078 BF356  – Elm Leaf-miner  – Phyllonorycter tristrigella  – (Haworth, 1828)
Adult Micro:  CAT 2 – Can be confused with other species –       Leaf-miner:  CAT L – The leaf or a Photo required – reared and possibly dissected      
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Black – Uncertain/Unknown – Insufficient Data        purple – Leaf-miner
Taxonomy:   Micro   >>  Gracillariidae  >> Lithocolletinae
Other Name/s: Elm Midget
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Phyllonorycter schreberella (Shining Elm Leaf-miner); Phyllonorycter stettinensis (Lesser Alder Leaf-miner)
ID pointers: None at this time
Distribution:  (Last record: 26 October 2025 at Markham Vale North Tip )  –  Uncertain as so few records, all of which are of the leaf mines. Five records between 2008 – 2023 Leaf Mine at Norton Lees August 2025; Markham Vale Oct 2025
General Comment: None
Flight Period: May /  August –  Two generations May & August Mine Period:  July /  September /  October
Mine Period Additional: A long, narrow and tubular mine blotch mine on underside of Elm leaves, between two veins
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: Andrew Watchorn (leaf mine) / Pete Mella (leaf mine) , Mark Radford (leaf mine)  © All Rights Reserved
*** Last updated on 27 October 2025 by TD ***
Wingspan: 7 -8.5mm
Food Plant: Elm
Last Recorded Year: 2025
Last Recorded By – Mark Radford
Last Recorded General Area – Markham Vale North Tip

Selected Images:  

Coombs Dale – July 2018 – Andrew Watchorn© / Norton Lees – Pete Mella© / Markham Vale Oct 2025 – Mark Radford©



Temporal Distribution Chart
Adults: (between 2019 - 2019)  |  Immatures: (between 2001 - 2025)
(click legend below to show/hide datasets)

Distribution Map for Phyllonorycter tristrigella

Found 24 records
    ↳ from 2026+
    ↳ 7 from 2020 - 2025
    ↳ 17 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

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.

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 – Phyllonorycter tristrigella

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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: Phyllonorycter tristrigella
( data includes both Larvae and Adult Stages )

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

First/Last Recorded Dates: Phyllonorycter tristrigella
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: Phyllonorycter tristrigella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Phyllonorycter tristrigella
AGR: 9.91%   |   Total % Change: 866.7%

Hectad (10kmx10km) Coverage: Phyllonorycter tristrigella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Phyllonorycter tristrigella

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
Phyllonorycter tristrigella
( 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 - Phyllonorycter tristrigella – 24 records available

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

Site NameTetradDateCountStageRecorderSourceRecordKey
Markham Vale North TipSK47L26/10/202550mineRadford, Markvc57_irecords_extractiBRC46124499
Jim Mart Nature ReserveSK36S01/09/20251mineMahadevan, Nikkivc57_irecords_extractiBRC45040641
Griffe Field Park, LittleoverSK33G30/08/20251mineShervill, Andrewvc57_irecords_extractiBRC44931325
Meersbrook ParkSK38M22/08/20251mineMella, Petevc57_irecords_extractiBRC44861607
DWT Wyver LaneSK34P13/08/20253mine (empty)Evans, Davevc57_irecords_extractiBRC44440789
DWT Wyver LaneSK34P06/08/20252mine (empty)Evans, Davevc57_irecords_extractiBRC44213592
Burton upon TrentSK32P05/11/20241MineFinch, Graham Leonardvc57_irecords_extractiBRC41038913
WilsonSK32X13/09/20192AdultSmith, Petervc57_irecords_extractiBRC11766708
Grange WoodSK21S13/09/20181MineFinch, Graham Leonardvc57_irecords_extractiBRC35106444
Coombs Dale, CalverSK27H30/07/20181LarvaWatchorn, Andrewvc57_irecords_extractiBRC7517921
Waggon Lane, Newhall, SwadlincoteSK22V14/07/20141Larval MineDave Budworthvc57_danes_bc_dataLC000334001COYXK
Newhall (Waggon Lane), SwadlincoteSK22V10/11/20101Larval MineDave Budworthvc57_danes_bc_dataLC000334001CP6QX
Thorpe, DovedaleSK15K13/10/20101Larval MineS.A. Orridge;S.H. Hindvc57_danes_bc_dataLC000334001COTQQ
Ashford in the WaterSK16Z22/09/20101Larval MineS.A. Orridge;S.H. Hindvc57_danes_bc_dataLC000334001CP6OY
Ashford in the WaterSK16Z22/09/20101Larval MineS.A. Orridge;S.H. Hindvc57_danes_bc_dataLC000334001CP6PL
Rose End Meadows NR,CromfordSK25Y16/10/20091Larval MineDave Budworth;S.A. Orridge;S.H. Hindvc57_danes_bc_dataLC000334001CP567
LinacreSK37L13/10/20091Larval MineS.H. Hindvc57_danes_bc_dataLC000334001CP55F
Stoney MiddletonSK27H12/10/20091Larval MineS.H. Hindvc57_danes_bc_dataLC000334001COWZL
NorburySK14G01/10/20091Larval MineDave Budworth;S.A. Orridge;S.H. Hindvc57_danes_bc_dataLC000334001COWY4
Broomfield Hall, Morley, DerbySK34V08/11/20081Larval MineS.H. Hindvc57_danes_bc_dataLC000334001COZZJ
Calke ParkSK32L25/10/20081MineFinch, Graham Leonardvc57_irecords_extractiBRC35105487
Calke Park,TicknallSK32R25/10/20081Larval MineVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001COSOO
Hillclifflane, nr IdridgehaySK24Y02/11/20021Larval MineS.H. Hindvc57_danes_bc_dataLC000334001CP1HE
Abbotsholme School, RocesterSK13E04/10/20011Larval MineS.H. Hindvc57_danes_bc_dataLC000334001CP1EN

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