Fomoria-septembrella-24th-July-2024-Buxton-Jon-Mortin
4.078 BF42  – Hypericum Dot  – Fomoria septembrella  – (Stainton, 1849)
Adult Micro:  CAT 4 – Dissection required – Gen-Det-Reqd       Leaf-miner:  CAT L – The leaf or a Photo required – reared and possibly dissected       Larval Case:  C1 – Distinctive Species –      
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
Other Name/s: Hypericum Pigmy
ID Difficulty:  Red – 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
Flight Period: May /  June /  August –  Two generations May-June & August Mine Period:  July /  October /  November /  December
Mine Period Additional: None.
Mine ID Difficulty:  Amber Mine Leaf – 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
Moth Activity: Cathemeral   – occasionally attracted to light Photographed: Yes –  Photographed By: Jon Mortin, Mark Radford, Christian Heintzen  © All Rights Reserved
*** Last updated on 12 December 2025 by TD ***
Wingspan: 5-6mm
Food Plant: St.John’s-wort (Hypericum)
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©



Temporal Distribution Chart
Immatures: (between 1996 - 2025)
(click legend below to show/hide datasets)

Distribution Map for Fomoria septembrella

Found 19 records
    ↳ from 2026+
    ↳ 7 from 2020 - 2025
    ↳ 12 from Before 2020
Flying
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Mining
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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 – Fomoria septembrella

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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: 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

Click the colour discs below to Select/De-select as Required

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

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
( 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 Recorder Source RecordKey
Glossop, Hague Street SK09G 08/10/2025 2 Leaf-mine Heintzen, Christian vc57_irecords_extract iBRC47521360
Trans Pennine Trail, Woodhead SK09Z 04/10/2025 1 Leaf-mine Heintzen, Christian vc57_irecords_extract iBRC47521359
Lower Gamesley VC SK09C 31/08/2024 1 mine (tenant Hind, Steve vc57_irecords_extract iBRC38243510
Deep Dale, Topley Pike SK17B 31/08/2024 1 Mine Mortin, Jon vc57_irecords_extract iBRC38438222
Goyts Lane Pond SK07H 24/07/2024 1 mine Mortin, Jon vc57_irecords_extract iBRC37372604
Coombs Dale, Stoney Middleton SK27H 21/07/2024 1 Mine Jackson Bird vc57_irecords_extract iBRC38436519
Coombs Dale, Stoney Middleton SK27H 21/07/2024 1 Larva A Emmerson vc57_irecords_extract iBRC38858061
Millers Dale SK17G 03/09/2011 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP7LD
Ashford in the Water SK16Z 22/09/2010 1 Larval Mine S.A. Orridge;S.H. Hind vc57_danes_bc_data LC000334001CP6PB
Bamford SK28B 21/09/2010 1 Larval Mine K. McCabe;S.H. Hind vc57_danes_bc_data LC000334001CP6OC
Hopton Wood Quarry NR SK25T 16/10/2009 1 Larval Mine Dave Budworth;S.A. Orridge;S.H. Hind vc57_danes_bc_data LC000334001COT0K
Coombs Dale,Stoney Middleton SK27H 12/10/2009 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP53U
Tissington Trail, Ashbourne SK14T 01/10/2009 1 Larval Mine Dave Budworth;S.A. Orridge;S.H. Hind vc57_danes_bc_data LC000334001COWYM
Pin Dale SK18L 10/09/2009 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COWXB
Lathkill Dale,Bakewell SK16Y 19/09/2008 1 Larval Mine Dave Budworth;S.H. Hind vc57_danes_bc_data LC000334001CP4LJ
Monks Dale, Buxton SK17G 14/09/2008 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COSNE
Cubley, nr Ashbourne SK13T 04/10/2001 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP1F0
Broomfield Hall, Morley, Derby SK34V 04/11/2000 1 Larval Mine I.F. Smith vc57_danes_bc_data LC000334001COQZE
Broomfield Hall, Morley, Derby SK34V 02/11/1996 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COQWI

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