4.024 BF104  –  Nepticulidae –  Nepticulinae – Stigmella magdalenae – Northern Rowan Dot – (Klimesch, 1950) Adult Micro:  CAT 4 – Gen. Det. Required – Gen-Det-Reqd       Leaf-miner:  CAT L – The leaf or a Photo required – reared and possibly dissected       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Black – Uncertain/Unknown – Insufficient Data        purple – Leaf Miner
Taxonomy:   Micro   >>  Nepticulidae  >> Nepticulinae
** Identification write-up required **
Other Name/s: Northern Rowan Pigmy
ID Difficulty:  Red – difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.
ID pointers: No information available
Distribution:  (Last record: 31 August 2025 at Glossop )  –  Uncertain due to insufficient data – 17 records prior to 2010 Leaf Mine from Glossop Sept 2025
Flight Period: May /  June /  July /  Mine Period: June /  July /  August /   – Broken Frass line is a key feature Moth Activity: Cathemeral   – occasionally attracted to light Photographed: Yes –  Photographed By: Christian Heintzen  © All Rights Reserved
*** Last updated on 14 September 2025 by TD ***
Wingspan: 3-5mm
Food Plant: Rowan
Last Recorded Year: 2025
Last Recorded By – Christian Heintzen
Last Recorded General Area – Glossop

IMAGES BELOW:  

Glossop 31/8/2025 – Christian Heintzen©

no images were found

Distribution Map for Stigmella magdalenae

Found 8 records
    ↳ 0 from After 2025
    ↳ 1 from 2020 - 2024
    ↳ 7 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.

******* Choose ONLY one at a time, of either Monad, Tetrad or Hectad Distribution - each has it's own set of data. Also, the distribution maps cover ALL recorded data. *******

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.

Land-cover * shows the variety of land-cover within the VC57 area, based on the CORINE (Coordination of Information on the Environment) forty-four thematic classes of land-cover. This will show, to a greater or lesser degree, the number and variety of moths found in different land-cover types. The UK continues to operate within the Copernicus programme, with the UK Centre for Ecology & Hydrology (UKCEH) providing Corine Land Cover (CLC) datasets for the UK and its territories.


NBN Atlas UK Distribution for – Stigmella magdalenae

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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.

Visit NBN Site


Monthly Records By Year: Stigmella magdalenae
( data includes both Larvae and Adult Stages )
No data returned from the database.

Monthly Counts By Year: Stigmella magdalenae
( data is based on 'Adult' stage records only. )


First/Last Recorded Dates: Stigmella magdalenae
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 magdalenae
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Stigmella magdalenae
AGR: 0%   |   Total % Change: 0%


CUSUM Analysis: Stigmella magdalenae
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 7 (July) 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 2006, reaching above average levels. The lowest population point occurred near 2006, 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 magdalenae
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Stigmella magdalenae
( 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 magdalenae
( 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 magdalenae – 8 records available

Listed by Year - descending - scroll across to see all table columns

TaxonSite NameTetradYearDateCountStageSource
Stigmella magdalenaeNorth Lees Estate, HathersageSK28G202025/07/20201pre-adultvc57_irecords_extract
Stigmella magdalenaeLadybower ResrSK18U201003/09/20101Larval Minevc57_danes_bc_data
Stigmella magdalenaePadley Gorge, Nether PadleySK27P201019/08/20101Larval Minevc57_danes_bc_data
Stigmella magdalenaeSlippery Stones,Upper DerwentSK19S201025/08/20101Larval Minevc57_danes_bc_data
Stigmella magdalenaeUpper Wood, Howden ResrSK19R201025/08/20101Larval Minevc57_danes_bc_data
Stigmella magdalenaeShallcross Wood, Goyt Valley, Whaley BridgeSK07E200626/09/20061Larval Minevc57_danes_bc_data
Stigmella magdalenaeOgston Carr Wood,nr Ogston ResSK35U200612/07/20061Larval Minevc57_danes_bc_data
Stigmella magdalenaeClattercotes Wood, nr Ogston ResrSK36Q200612/07/20061Larval Minevc57_danes_bc_data

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