Leaf-miner: CAT L – The leaf or a Photo required – 
– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Uncertain/Unknown – Insufficient Data 
– Leaf Miner
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required. ID pointers: All parornix species require particular care in identification. Adults are all similar to each other and are best determined by either Gen. Det or by rearing through the food plant.
Distribution: (Last record: 8 July 2019 at Ramsley Moor ) – With very few confirmed records the VC57 status remains uncertain but it is probably locally common on Birch. A leaf miner.
General Comment: None Mine Period Additional: The larvae of this species initially create gallery mines in the lower epidermis of birch (Betula spp.) leaves, leading to a Phyllonorycter-type mine, but discoloured brown. The larvae later feed within downward folds, usually at the tip of the leaf, pupating in this site or on the ground.
Mine ID Difficulty: Not Recorded
Mine Type/s: Not Recorded
Mine Feeding Method/s: Not Recorded
Mine Comment: None.
*** Last updated on 2 October 2025 by RP ***
Last Recorded Year: 2019
Last Recorded By – Andrew Watchorn (iRecord)
Last Recorded General Area – Ramsley Moor
Selected Images: Buxton, Derbyshire – Steve Orridge ©
Image Gallery
No gallery images found for this moth.
Distribution Map for Parornix betulae
Found 8 records
↳ 2 from After 2025
↳ 0 from 2020 - 2024
↳ 6 from Before 2020
↳ 2 from After 2025
↳ 0 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.
NBN Atlas UK Distribution for – Parornix betulae
⚠️ 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.
Monthly Records By Year:
Parornix betulae
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Parornix betulae
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Parornix betulae
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: Parornix betulae
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Parornix betulae
AGR: 2.41% | Total % Change: 50%
CUSUM Analysis: Parornix betulae
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 2019, 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: Parornix betulae
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Parornix betulae
Parornix betulae
( 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
Parornix betulae
Parornix betulae
( 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 - Parornix betulae – 8 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Sunnydale LNR | SK33G | 07/10/2025 | 1 | mine | vc57_irecords_extract |
| Darwin Forest | SK26X | 04/10/2025 | 2 | mine (empty) | vc57_irecords_extract |
| Ramsley Moor and Reservoir | SK27X | 08/07/2019 | 1 | mine | vc57_irecords_extract |
| Ramsley Moor and Reservoir | SK27X | 20/10/2015 | 1 | pre-adult | vc57_irecords_extract |
| Bamford St,Ripley | SK34Z | 31/07/2012 | 1 | Adult | vc57_danes_bc_data |
| Howden Resr | SK19L | 25/08/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Hopton Wood NR, Cromford | SK25T | 16/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Monsall Trail, Buxton | SK17L | 14/09/2008 | 1 | Larval Mine | vc57_danes_bc_data |