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
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.Confusion Species: Ectoedemia intimella, Stigmella catharticella
ID pointers: Very coarsely-scaled appearance a creamy blotch at about two thirds on the costa, creamy cilia and an orange tufty head
Distribution: (Last record: 8 October 2025 at Glossop ) – Uncertain due to insufficient data; 1985 Hopton Wood Quarry on St.John’s Wort
Also Leaf Mine records from Buxton 2024; Gamesley 2024, Markham Vale 2025. Leaf Mine from Longdendale and Glossop Oct 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, Blotch
Mine Feeding Method/s: Not Recorded
Mine Comment: Larvae mine the leaves of St.John’s-wort, first as a narrow gallery then later as a blotch
*** Last updated on 12 December 2025 by TD ***
Last Recorded Year: 2025
Last Recorded By – Christian Heintzen
Last Recorded General Area – Glossop
Selected Images:
Buxton – Jon Mortin©/ Markham Vale (July 2025) Mark Radford© / Longdendale (September 2025) and Glossop Oct 2025 Christian Heintzen©
Image Gallery
Distribution Map for Fomoria septembrella
Found 19 records
↳ from 2026+
↳ 7 from 2020 - 2025
↳ 12 from Before 2020
↳ from 2026+
↳ 7 from 2020 - 2025
↳ 12 from Before 2020
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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 – Fomoria septembrella
⚠️ 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:
Fomoria septembrella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Fomoria septembrella
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Fomoria septembrella
Adult-only & Anything [Larvae, Pupae, Adult, Mines]
Shading shows moth presence between dates
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Recordings By Year: Fomoria septembrella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Fomoria septembrella
AGR: 1.64% | Total % Change: 50%
Hectad (10kmx10km) Coverage: Fomoria septembrella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Fomoria septembrella
Fomoria septembrella
( 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 2020-2026.
Mine Periods – Indicative –vs– Recorded Data
Fomoria septembrella
Fomoria septembrella
( 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 - Fomoria septembrella – 19 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Glossop, Hague Street | SK09G | 08/10/2025 | 2 | Leaf-mine | vc57_irecords_extract |
| Trans Pennine Trail, Woodhead | SK09Z | 04/10/2025 | 1 | Leaf-mine | vc57_irecords_extract |
| Lower Gamesley VC | SK09C | 31/08/2024 | 1 | mine (tenant | vc57_irecords_extract |
| Deep Dale, Topley Pike | SK17B | 31/08/2024 | 1 | Mine | vc57_irecords_extract |
| Goyts Lane Pond | SK07H | 24/07/2024 | 1 | mine | vc57_irecords_extract |
| Coombs Dale, Stoney Middleton | SK27H | 21/07/2024 | 1 | Mine | vc57_irecords_extract |
| Coombs Dale, Stoney Middleton | SK27H | 21/07/2024 | 1 | Larva | vc57_irecords_extract |
| Millers Dale | SK17G | 03/09/2011 | 1 | Larval Mine | vc57_danes_bc_data |
| Ashford in the Water | SK16Z | 22/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Bamford | SK28B | 21/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Hopton Wood Quarry NR | SK25T | 16/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Coombs Dale,Stoney Middleton | SK27H | 12/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Tissington Trail, Ashbourne | SK14T | 01/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Pin Dale | SK18L | 10/09/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Lathkill Dale,Bakewell | SK16Y | 19/09/2008 | 1 | Larval Mine | vc57_danes_bc_data |
| Monks Dale, Buxton | SK17G | 14/09/2008 | 1 | Larval Mine | vc57_danes_bc_data |
| Cubley, nr Ashbourne | SK13T | 04/10/2001 | 1 | Larval Mine | vc57_danes_bc_data |
| Broomfield Hall, Morley, Derby | SK34V | 04/11/2000 | 1 | Larval Mine | vc57_danes_bc_data |
| Broomfield Hall, Morley, Derby | SK34V | 02/11/1996 | 1 | Larval Mine | vc57_danes_bc_data |