Larval Case: C1 – Distinctive Species – 
– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Uncertain/Unknown – Insufficient Data 
– Leaf Miner
Phyllonorycter platanoidella
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.Confusion Species: Phyllonorycter acerifoliella
(Maple Leaf-miner); Phyllonorycter geniculella
(Sycamore Leaf-miner):
ID pointers: The central fascia on forewing forms an obtuse angle, cf 90 degree angle on P.acerifoliella. The basal striae are placed alternately on P.joannisi c.f opposite each other on P.acerifoliella.
Distribution: (Last record: 29 October 2025 at Staveley ) – Uncertain very few records, all leaf mines – DaNES – 5 records between 2001-2009; iRecord two records from Calke Park 2008 & 2023. First record of adult from Norton Lees on 4th July 2025, followed by the 2nd adult record from Chaddesden 16/7/2025 / Leaf Mine discovered 23/9/2025
leaf mine Staveley 29/10/2025
*** Last updated on 30 October 2025 by TD ***
Last Recorded Year: 2025
Last Recorded By – Mark Radford
Last Recorded General Area – Staveley
Selected Images:
Chaddesden 16/7/2025 – 2nd record of adult – Neil Loverock© / Sunnyhill Park 23/9/2025 – Andrew-John Shervill© / Mark Radford©
Image Gallery
Distribution Map for Phyllonorycter joannisi
Found 11 records
↳ 4 from After 2025
↳ 1 from 2020 - 2024
↳ 6 from Before 2020
↳ 4 from After 2025
↳ 1 from 2020 - 2024
↳ 6 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.
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.
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NBN Atlas UK Distribution - This moth may be an aggregate and as such no specific records of distribution exist.
Monthly Records By Year:
Phyllonorycter joannisi
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Phyllonorycter joannisi
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Phyllonorycter joannisi
Adult-only & Anything [Larvae, Pupae, Adult, Mines]
Shading shows moth presence between dates
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Recordings By Year: Phyllonorycter joannisi
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Phyllonorycter joannisi
AGR: 5.66% | Total % Change: 275%
CUSUM Analysis: Phyllonorycter joannisi
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 20 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 2025, reaching above average levels. The lowest population point occurred near 2023, 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 joannisi
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Phyllonorycter joannisi
Phyllonorycter joannisi
( 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 joannisi
Phyllonorycter joannisi
( 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 joannisi – 11 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Hall Lane, Staveley, Derbyshire | SK47H | 30/10/2025 | 1 | mine | vc57_irecords_extract |
| Ashbourne | SK14Y | 23/09/2025 | 3 | mine | vc57_irecords_extract |
| Sunnyhill Park, Derby | SK33L | 23/09/2025 | 10 | mine | vc57_irecords_extract |
| Chaddesden Garden | SK33T | 16/07/2025 | 1 | adult | vc57_irecords_extract |
| Calke Park | SK32R | 01/10/2023 | 1 | Mine | vc57_irecords_extract |
| Hope | SK18R | 07/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Broomfield Hall, Morley, Derby | SK34V | 08/11/2008 | 1 | Larval Mine | vc57_danes_bc_data |
| Calke Park | SK32L | 25/10/2008 | 1 | Mine | vc57_irecords_extract |
| Calke Park,Ticknall | SK32R | 25/10/2008 | 1 | Larval Mine | vc57_danes_bc_data |
| Calke Park,Ticknall | SK32R | 22/11/2006 | 1 | Larval Mine | vc57_danes_bc_data |
| Abbotsholme School, Rocester | SK13E | 04/10/2001 | 1 | Larval Mine | vc57_danes_bc_data |