15.075 – BF353  –  Gracillariidae –  Gracillariinae – Phyllonorycter ulmifoliella – Common Birch Leaf-miner – (Hübner, 1817) Adult Micro:  CAT 4 – Gen. Det. Required – Gen-Det-Reqd       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
Green –  Rare / Uncommon / Scarce        purple – Leaf Miner
Taxonomy:   Micro   >>  Gracillariidae  >> Gracillariinae
Other Name/s: Red Birch Midget
ID Difficulty:  Red – difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.
ID pointers: None available at this time
Distribution:  (Last record: 28 February 2025 at Carver's Rocks )  –  Appears to be uncommon but probably under recorded – Leaf Mines are found and make up most of the records a good contender for an adult was recorded by Christian Heintzen at Glossop, April 2025.
General Comment: None
Flight Period: May /  August –  Two generations May & August Mine Period:  July /  September /  October
Mine Period Additional: A blotch mine on the underside of a leaf
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: Steve Orridge  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 7-9mm
Food Plant: Birch
Last Recorded Year: 2023 – Leaf Mine
Last Recorded By – Graham Finch
Last Recorded General Area – Carver's Rocks

Selected Images:  

Rose End Meadows – (2009) – Steve Orridge© / plausible, Glossop (2025) – Christian Heintzen©



Distribution Map for Phyllonorycter ulmifoliella

Found 24 records
    ↳ 3 from After 2025
    ↳ 1 from 2020 - 2024
    ↳ 20 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 ulmifoliella

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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 ulmifoliella
( data includes both Larvae and Adult Stages )

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


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


CUSUM Analysis: Phyllonorycter ulmifoliella
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 16 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 9 (September) 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 2007, reaching above average levels. The lowest population point occurred near 2021, 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: Phyllonorycter ulmifoliella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Phyllonorycter ulmifoliella
( 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.

Mine Periods – Indicative –vs– Recorded Data
Phyllonorycter ulmifoliella
( 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 2020-2025.

Records Behind the Map and Charts - Phyllonorycter ulmifoliella – 24 records available

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

Site NameTetradDateCountStageSource
Allestree, DerbySK33P03/09/20251adultvc57_irecords_extract
Limb Valley, SheffieldSK38B22/05/20251mine (tenantvc57_irecords_extract
Derbyshire Wild Life Trust Long CloughSK09G24/04/20251adultvc57_irecords_extract
Woodland AveSK43R24/07/20211adultvc57_irecords_extract
Derbyshire, UKSK07M16/09/20191Larvavc57_irecords_extract
Blacka Moor and PlantationSK28Q27/07/20161mine (tenantvc57_irecords_extract
Millers DaleSK17G03/09/20111Larval Minevc57_danes_bc_data
Ladybower ResrSK18U03/09/20101Larval Minevc57_danes_bc_data
Slippery Stones,Upper DerwentSK19S25/08/20101Larval Minevc57_danes_bc_data
Howden ResrSK19L25/08/20101Larval Minevc57_danes_bc_data
Padley Gorge, Nether PadleySK27P19/08/20101Larval Minevc57_danes_bc_data
Rose End MeadowSK25Y16/10/20091minevc57_irecords_extract
Hopton Wood NR, CromfordSK25T16/10/20091Larval Minevc57_danes_bc_data
LinacreSK37L13/10/20091Larval Minevc57_danes_bc_data
NorburySK14G01/10/20091Larval Minevc57_danes_bc_data
Monsall Trail, BuxtonSK17L14/09/20081Larval Minevc57_danes_bc_data
Robin Wood, TicknallSK32M01/05/20071Adultvc57_danes_bc_data
Foremark ReservoirSK32H13/04/20072adultvc57_irecords_extract
Foremark Reservoir, DerbyshireSK32H13/04/20072adultvc57_irecords_extract
Foremark Resr, TicknallSK32H13/04/20072Adultvc57_danes_bc_data
Ogston Carr Wood,nr Ogston ResSK35U12/07/20061Larval Minevc57_danes_bc_data
Clattercotes Wood, nr Ogston ResrSK36Q12/07/20061Larval Minevc57_danes_bc_data
Brackley Gate, nr CoxbenchSK34W03/11/20011Larval Minevc57_danes_bc_data
Cubley, nr AshbourneSK13U04/10/20011Larval Minevc57_danes_bc_data

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