4.078 BF42  –  Nepticulidae –  Nepticulinae – Fomoria septembrella – Hypericum Dot – (Stainton, 1849) 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
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: 28 July 2025 at Markham Vale, Hall Lane Ponds )  –  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.
Flight Period: May /  June /  August /  –  Two generations May-June & August Mine Period: July /  October /  November /  December /   – 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  © All Rights Reserved
*** Last updated on 12 August 2025 by RP ***
Wingspan: 5-6mm
Food Plant: St.John’s-wort (Hypericum)
Last Recorded Year: 2025
Last Recorded By – Mark Radford
Last Recorded General Area – Markham Vale, Hall Lane Ponds

IMAGES BELOW:  

Buxton – Jon Mortin©/ Markham Vale (July 2025) Mark Radford©

no images were found

Distribution Map for Fomoria septembrella

Found 17 records
    ↳ 0 from After 2025
    ↳ 5 from 2020 - 2024
    ↳ 12 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 – 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.

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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: 0%   |   Total % Change: 0%


CUSUM Analysis: Fomoria septembrella
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 19 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 2000, reaching above average levels. The lowest population point occurred near 2000, 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: Fomoria septembrella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
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 2020-2025.

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 2020-2025.

Records Behind the Map and Charts - Fomoria septembrella – 17 records available

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

TaxonSite NameTetradYearDateCountStageSource
Fomoria septembrellaLower Gamesley VCSK09C202431/08/20241mine (tenantvc57_irecords_extract
Fomoria septembrellaDeep Dale, Topley PikeSK17B202431/08/20241Adultvc57_irecords_extract
Fomoria septembrellaGoyts Lane PondSK07H202424/07/20241minevc57_irecords_extract
Fomoria septembrellaCoombs Dale, Stoney MiddletonSK27H202421/07/20241Adultvc57_irecords_extract
Fomoria septembrellaCoombs Dale, Stoney MiddletonSK27H202421/07/20241Larvavc57_irecords_extract
Fomoria septembrellaMillers DaleSK17G201103/09/20111Larval Minevc57_danes_bc_data
Fomoria septembrellaBamfordSK28B201021/09/20101Larval Minevc57_danes_bc_data
Fomoria septembrellaAshford in the WaterSK16Z201022/09/20101Larval Minevc57_danes_bc_data
Fomoria septembrellaHopton Wood Quarry NRSK25T200916/10/20091Larval Minevc57_danes_bc_data
Fomoria septembrellaTissington Trail, AshbourneSK14T200901/10/20091Larval Minevc57_danes_bc_data
Fomoria septembrellaCoombs Dale,Stoney MiddletonSK27H200912/10/20091Larval Minevc57_danes_bc_data
Fomoria septembrellaPin DaleSK18L200910/09/20091Larval Minevc57_danes_bc_data
Fomoria septembrellaMonks Dale, BuxtonSK17G200814/09/20081Larval Minevc57_danes_bc_data
Fomoria septembrellaLathkill Dale,BakewellSK16Y200819/09/20081Larval Minevc57_danes_bc_data
Fomoria septembrellaCubley, nr AshbourneSK13T200104/10/20011Larval Minevc57_danes_bc_data
Fomoria septembrellaBroomfield Hall, Morley, DerbySK34V200004/11/20001Larval Minevc57_danes_bc_data
Fomoria septembrellaBroomfield Hall, Morley, DerbySK34V199602/11/19961Larval Minevc57_danes_bc_data

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