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      
PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
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)
This chart summarises all available historical occurrence records collated by ISO week of the year. It reflects recorder effort and sampling distribution as well as true biological activity, and should be interpreted as an indicative pattern of seasonal occurrence rather than a statistically controlled abundance or phenology model.

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

⚠️ 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: 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 Name Tetrad Date Count Stage Recorder Source RecordKey
Markham Vale North Tip SK47L 26/10/2025 50 mine Radford, Mark vc57_irecords_extract iBRC46124499
Jim Mart Nature Reserve SK36S 01/09/2025 1 mine Mahadevan, Nikki vc57_irecords_extract iBRC45040641
Griffe Field Park, Littleover SK33G 30/08/2025 1 mine Shervill, Andrew vc57_irecords_extract iBRC44931325
Meersbrook Park SK38M 22/08/2025 1 mine Mella, Pete vc57_irecords_extract iBRC44861607
DWT Wyver Lane SK34P 13/08/2025 3 mine (empty) Evans, Dave vc57_irecords_extract iBRC44440789
DWT Wyver Lane SK34P 06/08/2025 2 mine (empty) Evans, Dave vc57_irecords_extract iBRC44213592
Burton upon Trent SK32P 05/11/2024 1 Mine Finch, Graham Leonard vc57_irecords_extract iBRC41038913
Wilson SK32X 13/09/2019 2 Adult Smith, Peter vc57_irecords_extract iBRC11766708
Grange Wood SK21S 13/09/2018 1 Mine Finch, Graham Leonard vc57_irecords_extract iBRC35106444
Coombs Dale, Calver SK27H 30/07/2018 1 Larva Watchorn, Andrew vc57_irecords_extract iBRC7517921
Waggon Lane, Newhall, Swadlincote SK22V 14/07/2014 1 Larval Mine Dave Budworth vc57_danes_bc_data LC000334001COYXK
Newhall (Waggon Lane), Swadlincote SK22V 10/11/2010 1 Larval Mine Dave Budworth vc57_danes_bc_data LC000334001CP6QX
Thorpe, Dovedale SK15K 13/10/2010 1 Larval Mine S.A. Orridge;S.H. Hind vc57_danes_bc_data LC000334001COTQQ
Ashford in the Water SK16Z 22/09/2010 1 Larval Mine S.A. Orridge;S.H. Hind vc57_danes_bc_data LC000334001CP6OY
Ashford in the Water SK16Z 22/09/2010 1 Larval Mine S.A. Orridge;S.H. Hind vc57_danes_bc_data LC000334001CP6PL
Rose End Meadows NR,Cromford SK25Y 16/10/2009 1 Larval Mine Dave Budworth;S.A. Orridge;S.H. Hind vc57_danes_bc_data LC000334001CP567
Linacre SK37L 13/10/2009 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP55F
Stoney Middleton SK27H 12/10/2009 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COWZL
Norbury SK14G 01/10/2009 1 Larval Mine Dave Budworth;S.A. Orridge;S.H. Hind vc57_danes_bc_data LC000334001COWY4
Broomfield Hall, Morley, Derby SK34V 08/11/2008 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COZZJ
Calke Park SK32L 25/10/2008 1 Mine Finch, Graham Leonard vc57_irecords_extract iBRC35105487
Calke Park,Ticknall SK32R 25/10/2008 1 Larval Mine VC57 Derbyshire Recorder vc57_danes_bc_data LC000334001COSOO
Hillclifflane, nr Idridgehay SK24Y 02/11/2002 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP1HE
Abbotsholme School, Rocester SK13E 04/10/2001 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP1EN

Scroll to Top