Leaf-miner:
CAT L
– The leaf or a Photo required –
– click for General Verification Guidelines |
– click for Specific Verification Guidelines
Verification Notes: Adult requires Gen Det
– Uncertain/Unknown – Insufficient Data
– Leaf-miner
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.
Confusion Species: Stigmella ruficapitella; Stigmella svenssoni; Stigmella atricapitella
Mine Period Additional: Two generations of leaf mining activity – It overwinters as a pupa inside a dark brown, silk cocoon spun among fallen leaf litter on the ground.
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: The larva creates a long, slender, relatively straight or gently winding gallery through the leaf tissue. The first generation mines, during summer, are generally short, whilst the second generation mines, during the autumn, are longer and more irregular. The frass forms a very narrow central line. Even as the gallery expands, the frass never occupies more than 1/3 of the mine’s total width, leaving broad, clean, transparent margins either side of the gallery. Larva are whitish-yellow with a pale brown head.
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Temporal Distribution Chart
Immatures: (between 2026 - 2026)
Changes in First and Last Recorded Activity Dates Over Time
This chart presents a time-series summary of recorded observations. It is based on available records at the time of analysis and will evolve as further data are added. The five-year moving average provides a smoothed representation of variation in recorded adult and immature activity over time, helping to illustrate longer-term trends in the earliest and latest recorded dates.
Annual record totals are shown for context; years with fewer records may provide a less complete representation of activity than years with higher recording intensity. Interpretation should consider that apparent trends may reflect both biological change and variation in recording effort.
Note: Clicking either the Adult Range.... or Immature Range... legends allows you to hide them, to show more discrete data.
Distribution Map for Stigmella roborella
↳ 1 from 2026+
↳ 0 from 2020 - 2025
↳ 0 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 roborella
⚠️ 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 roborella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year:
Stigmella roborella
( data is based on 'Adult' stage records only )
First/Last Recorded Dates: Stigmella roborella
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 roborella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Stigmella roborella
AGR: 0% | Total % Change: 0%
Stigmella roborella
Insufficient records/data for an AGR analysis
Hectad (10kmx10km) Coverage: Stigmella roborella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Stigmella roborella
Stigmella roborella
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 2020-2026.
Mine Periods – Indicative –vs– Recorded Data
Stigmella roborella
Stigmella roborella
( 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 2020-2026.
Records Behind the Map and Charts - Stigmella roborella – 1 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Recorder | Source | RecordKey |
|---|---|---|---|---|---|---|---|
| Markham Vale North Tip | SK47L | 03/11/2026 | 1 | mine | Radford, Mark | vc57_irecords_extract | iBRC57875427 |