Larval Case: C1 – Distinctive Species – 
– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Rare / Uncommon / Scarce 
– Leaf Miner
– easy to identify, generally distinctive and unlikely to be confused with other species.ID pointers: Sits in a distinctive angular posture – head shows erect orange tufted scales. Forewing is a dark brown, with a purplish sheen, with 3 whitish triangular shaped spots running along the edge of the costa and two on the dorsum.
Distribution: (Last record: 26 August 2025 at Norton ) – Likely to be uncommon with less than 10 records, majority of which are from the south of the county. Found where there is a good density of apple trees. Latest record 26/8/2025 – Norton leaf mine / latest adult 27/5/2018 Allestree
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, Blotch
Mine Feeding Method/s: Leaf Fold
Mine Comment: The larvae first of all mine the leaf creating a gallery, which leads to a semi-translucent, often orange-brown, blotch-shaped mine on the upper surface of a leaf. After this stage, the larva vacates the mine and creates two or three successive folds along the leaf margin, secured with silk, where it continues to feed and skeletonize the leaf’s interior.
*** Last updated on 16 November 2025 by TD ***
Last Recorded Year: 2025
Last Recorded By – Pete Mella
Last Recorded General Area – Norton
Selected Images:
Allestree – adult – 27/5/2018 Stephen Plant© / Norton Leaf Mine – 26/8/2025 – Pete Mella©
Image Gallery
Distribution Map for Callisto denticulella
Found 11 records
↳ 1 from After 2025
↳ 2 from 2020 - 2024
↳ 8 from Before 2020
↳ 1 from After 2025
↳ 2 from 2020 - 2024
↳ 8 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 – Callisto denticulella
⚠️ 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:
Callisto denticulella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Callisto denticulella
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Callisto denticulella
Adult-only & Anything [Larvae, Pupae, Adult, Mines]
Shading shows moth presence between dates
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Recordings By Year: Callisto denticulella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Callisto denticulella
AGR: 0% | Total % Change: 0%
CUSUM Analysis: Callisto denticulella
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 17 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 2021, 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: Callisto denticulella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Callisto denticulella
Callisto denticulella
( 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
Callisto denticulella
Callisto denticulella
( 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 - Callisto denticulella – 11 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Norton, Hemsworth Road | SK38L | 26/08/2025 | 1 | mine | vc57_irecords_extract |
| Midway, Derbys. | SK32A | 28/05/2021 | 1 | adult | vc57_irecords_extract |
| Longshaw National Trust | SK27U | 15/06/2020 | 1 | Adult | vc57_irecords_extract |
| Allestree, Derby | SK33P | 27/05/2018 | 1 | adult | vc57_irecords_extract |
| Sheffield, England, United Kingdom | SK38L | 23/05/2017 | 1 | Adult | vc57_irecords_extract |
| Millennium Meadow NR, Duffield | SK34L | 16/08/2014 | 1 | Larval Mine | vc57_danes_bc_data |
| Bamford | SK28B | 21/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Padley Gorge, Nether Padley | SK27P | 19/08/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Rose Av,Clowne | SK57D | 21/05/2010 | 1 | Adult | vc57_danes_bc_data |
| Carr Vale NR,Bolsover | SK47K | 13/09/2006 | 1 | Larval Mine | vc57_danes_bc_data |
| Abbotsholme School, Rocester | SK13E | 04/10/2001 | 1 | Larval Mine | vc57_danes_bc_data |