Leaf-miner: CAT L – The leaf or a Photo required – 
Larval Case: C1 – Distinctive Species – 
– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Uncertain/Unknown – Insufficient Data 
– Leaf Miner
** Identification write-up required
**
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.Confusion Species: Stigmella microtheriella
ID pointers: Adult moths are bronze-brown with a distinct, rather broad, shining golden-silvery transverse band about two-thirds of the way down the forewing. The head has yellow hairs and the antennae are dark with a white, expanded base (eyecaps). Exact identification of adults can be difficult without performing a GenDet examination, as several Stigmella species are very similar in appearance
Distribution: (Last record: 7 October 2025 at Markham Vale South Tip ) – Leaf mine recorded from Ramsley Moor 8/7/2019 – photographed and verified. Leaf mine from Markham Vale South Tip 7/10/2025
General Comment: None Mine Period Additional: None.
Mine ID Difficulty:
– Care required in ID process as confusion with similar leaf mines. Quality photos of the mine required. Mine Type/s: Gallery
Mine Feeding Method/s: Not Recorded
Mine Comment: Although the mine looks similar to Stigmella luteella and Stigmella lapponica, it is far less contorted at the beginning. The larva creates a gallery mine in leaves of birch (Betula), leaving a central irregular line of frass. The frass line for betulicola is thicker and interrupted. In lapponica the first segment of the mine is stuffed with frass and there is an abrupt transition to linear frass. The mine, is often found on seedlings and small birch plants. The mine can be distinguished from similar species (like S. luteella) by having smooth, parallel edges and a less contorted initial section. The larva is bright yellow with a green gut-line and dark ventral spots,
*** Last updated on 21 November 2025 by TD ***
Last Recorded Year: 2025
Last Recorded By – Mark Radford
Last Recorded General Area – Markham Vale South Tip
Selected Images:
Markham Vale South Tip – Oct 2025 – Mark Radford©
Image Gallery
Distribution Map for Stigmella betulicola
Found 3 records
↳ 1 from After 2025
↳ 1 from 2020 - 2024
↳ 1 from Before 2020
↳ 1 from After 2025
↳ 1 from 2020 - 2024
↳ 1 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 – Stigmella betulicola
⚠️ 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:
Stigmella betulicola
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Stigmella betulicola
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Stigmella betulicola
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: Stigmella betulicola
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Stigmella betulicola
AGR: 0% | Total % Change: 0%
CUSUM Analysis: Stigmella betulicola
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 24 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 10 (October) 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 2020, 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: Stigmella betulicola
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Stigmella betulicola
Stigmella betulicola
( 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
Stigmella betulicola
Stigmella betulicola
( 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 - Stigmella betulicola – 3 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Markham Vale South Tip | SK47K | 07/10/2025 | 1 | mine | vc57_irecords_extract |
| Allestree, Derby | SK33P | 08/08/2020 | 1 | adult | vc57_irecords_extract |
| Ramsley Moor and Reservoir | SK27X | 08/07/2019 | 1 | pre-adult | vc57_irecords_extract |