47.006 BF481  –  Epermeniidae –  Epermeniiae – Epermenia falciformis – Streaked Ridge-back – (Haworth, 1828) Adult Micro:  CAT 3 – Very Rare/Scarce/Migrant/Adventive – confusion with leaf mines       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
Brown –  Significant Record / Very Rare / Vagrant         purple – Leaf Miner
Taxonomy:   Micro   >>  Epermeniidae  >> Epermeniiae
Other Name/s: Large Lance-wing, Epermenia illigerella
ID Difficulty:  green  – easy to identify, generally distinctive and unlikely to be confused with other species.
ID pointers: A fairly distinctive and well marked species. A yellowish-brown forewing, being mottled darker at base, along costa and towards the apex. A diagonal dark brown cross band about half way across the forewing. Scale tufts on the dorsum. The wing apex is hooked and edged black.
Distribution:  (First record: 11 August 2007 at Foremark Reservoir )  –  (Last record: 12 August 2025 at Chisworth )  –  One from Foremark Reservoir in 2007 and four from Markham Vale, 3 in August 2023 and one in August 2024, all from Markham Vale CP recorded by Sid Morris, one from Chaddesden 25/7/2025. The species appears to be established at Markham Vale. One from Chisworth 12/8/25
Flight Period: June /  July /  August /  September /  –  June – September in two generations.  Moth Activity: Nocturnal   – and is attracted to light Photographed: Yes –  Photographed By: Sid Morris, Neil Loverock, Christian Heintzen  © All Rights Reserved
*** Last updated on 25 August 2025 by TD ***
Wingspan: 12-14mm
Food Plant: Wild Angelica or Ground Alder.
Last Recorded Year: 2025
First Recorded Year: 2007
Last Recorded By – Christian Heintzen
Last Recorded General Area – Chisworth

IMAGES BELOW:  Markham Vale CP, Derbyshire – Sid Morris© / Chaddesden 29/7/2025 – Neil Loverock© / Chisworth 12/8/25 – Christian Heintzen©

Distribution Map for Epermenia falciformis

Found 5 records
    ↳ 2 from After 2025
    ↳ 2 from 2020 - 2024
    ↳ 1 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 – Epermenia falciformis

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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: Epermenia falciformis
( data includes both Larvae and Adult Stages )

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


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


CUSUM Analysis: Epermenia falciformis
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 22 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 2025, reaching above average levels. The lowest population point occurred near 2024, 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: Epermenia falciformis
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Epermenia falciformis
( 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
Epermenia falciformis
( 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 - Epermenia falciformis – 5 records available

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

TaxonSite NameTetradYearDateCountStageSource
Epermenia falciformisShirland - Hallfieldgate LaneSK35Z202511/08/20251adultvc57_irecords_extract
Epermenia falciformisChaddesden GardenSK33T202529/07/20251adultvc57_irecords_extract
Epermenia falciformisMarkham Vale DerbyshireSK47L202426/08/20241adultvc57_irecords_extract
Epermenia falciformisStaveley DerbyshireSK47H202323/08/20231adultvc57_irecords_extract
Epermenia falciformisCarvers Rocks,Hartshorne,Swadlincote (old toilet block area)SK32G200711/08/20071Adultvc57_danes_bc_data

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