Phyllonorycter joannisi       Phyllonorycter comparella
15.086 BF364  –  Gracillariidae –  Lithocolletinae – Phyllonorycter geniculella – Sycamore Leaf-miner – (Ragonot, 1874) Adult Micro:  CAT 2 – Confusion 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: Sycamore Midget
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  P. acerifoliella, P. joannisi
ID pointers: A very attractive but tiny micro moth. A white base colour with rufous and black edged chevrons almost merging into each other.
Distribution:  (Last record: 31 October 2024 at Grange Wood )  –  A common species across much of England where the food plant, Acer pseudoplatanus (Sycamore) is established. Status in Derbyshire uncertain/unknown due to insufficient data, but most probably common and spreading. Maybe under-recorded.
Flight Period: May /  August /  –  On the wing during May and August. Mine Period: July /  October /   – July but more commonly in October. The mine is rounded, between veins, with several small creases. The leaf may fold downwards if mine is at the margin. Photographed: Yes –  Photographed By: Will Soar, Dave Evans  © All Rights Reserved
*** Last updated on 6 May 2025 by RP ***
Wingspan: 8mm
 Food Plant: Sycamore Acer pseudoplatanus
Last Recorded Year: 2024
Last Recorded By – Graham Finch
Last Recorded General Area – Grange Wood
IMAGES BELOW:  Kings Newton – Will Soar ©

15.086 BF364 - Gracillariidae - Lithocolletinae - Phyllonorycter geniculella
Phyllonorycter geniculella – Will Soar
Phyllonorycter geniculella 30/7/2024 - Dave Evans
Phyllonorycter geniculella 30/7/2024 – Dave Evans
15.086 BF364 - Gracillariidae - Lithocolletinae - Phyllonorycter geniculella
Phyllonorycter geniculella 30/7/2024 - Dave Evans

 
 

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Distribution Map for Phyllonorycter geniculella

Found 41 records
    ↳ 4 from After 2025
    ↳ 5 from 2020 - 2024
    ↳ 32 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 – Phyllonorycter geniculella

⚠️ 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 geniculella
( data includes both Larvae and Adult Stages )

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


First/Last Recorded Dates: Phyllonorycter geniculella
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 geniculella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Phyllonorycter geniculella
AGR: 4.31%   |   Total % Change: 175%


CUSUM Analysis: Phyllonorycter geniculella
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 12 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 2024, 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 geniculella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Phyllonorycter geniculella
( 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 geniculella
( 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 geniculella – 41 records available

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

TaxonSite NameTetradYearDateCountStageSource
Phyllonorycter geniculellaDWT Wyver LaneSK34P202502/09/20256mine (empty)vc57_irecords_extract
Phyllonorycter geniculellaDWT Wyver LaneSK34P202509/09/20252mine (empty)vc57_irecords_extract
Phyllonorycter geniculellaDWT Wyver LaneSK34P202526/08/20252mine (empty)vc57_irecords_extract
Phyllonorycter geniculellaGraves Park, SheffieldSK38L202526/08/20251minevc57_irecords_extract
Phyllonorycter geniculellaBelperSK34N202430/07/20241adultvc57_irecords_extract
Phyllonorycter geniculellaCalke ParkSK32R202307/10/20231Minevc57_irecords_extract
Phyllonorycter geniculellaCalke ParkSK32R202301/10/20231Minevc57_irecords_extract
Phyllonorycter geniculellaCarver's RocksSK32G202330/09/20231Minevc57_irecords_extract
Phyllonorycter geniculellaNorth Lees Estate, HathersageSK28G202025/07/20202pre-adultvc57_irecords_extract
Phyllonorycter geniculellaNorton LeesSK38L201903/08/20191adultDanes_2019-2021
Phyllonorycter geniculellaGrange WoodSK21S201813/09/20181Minevc57_irecords_extract
Phyllonorycter geniculellaMain Street, Kings NewtonSK32Y201704/09/20171Adultvc57_irecords_extract
Phyllonorycter geniculellaMillers DaleSK17G201103/09/20111Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaThorpe, DovedaleSK15K201013/10/20101Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaBamfordSK28B201021/09/20101Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaLadybower ResrSK18U201003/09/20101Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaAshford in the WaterSK16Z201022/09/20101Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaHowden ResrSK19L201025/08/20101Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaPadley Gorge, Nether PadleySK27P201019/08/20101Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaHopeSK18R200907/10/20091Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaHopton Wood, CromfordSK25S200916/10/20091Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaCoombs Dale,Stoney MiddletonSK27H200912/10/20091Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaNorburySK14G200901/10/20091Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaLinacreSK37L200913/10/20091Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaCromfordSK25Y200916/10/20091Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaMidway, Derbys.SK32A200910/07/20091adultvc57_irecords_extract
Phyllonorycter geniculellaMidway Rd,Midway,SwadlincoteSK32A200910/07/20091Adultvc57_danes_bc_data
Phyllonorycter geniculellaStrines, New MillsSJ98T200817/09/20081Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaMousley Bottom, New MillsSJ98X200703/09/20071Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaCramside Wood (DWT reserve)SK17R200720/06/20071Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaClattercotes Wood, nr Ogston ResrSK36K200612/07/20061Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaMain Street, Kings NewtonSK32Y200305/09/20031Adultvc57_irecords_extract
Phyllonorycter geniculellaMain Street, Kings NewtonSK32Y200312/09/20032Adultvc57_irecords_extract
Phyllonorycter geniculellaMain Street, Kings NewtonSK32Y200316/09/20031Adultvc57_irecords_extract
Phyllonorycter geniculellaMain St,Kings Newton,MelbourneSK32Y200305/09/20031Adultvc57_danes_bc_data
Phyllonorycter geniculellaMain St,Kings Newton,MelbourneSK32Y200312/09/20032Adultvc57_danes_bc_data
Phyllonorycter geniculellaMain St,Kings Newton,MelbourneSK32Y200316/09/20031Adultvc57_danes_bc_data
Phyllonorycter geniculellaMain Street, Kings NewtonSK32Y200325/08/20032Adultvc57_irecords_extract
Phyllonorycter geniculellaMain St,Kings Newton,MelbourneSK32Y200325/08/20032Adultvc57_danes_bc_data
Phyllonorycter geniculellaBrackley Gate, nr CoxbenchSK34W200103/11/20011Larval Minevc57_danes_bc_data
Phyllonorycter geniculellaCubley, nr AshbourneSK13U200104/10/20011Larval Minevc57_danes_bc_data

 
Phyllonorycter joannisi       Phyllonorycter comparella

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