Phaulernis dentella       Epermenia falciformis
47.005 BF483  –  Epermeniidae –  Epermeniiae – Epermenia chaerophyllella – Common Ridge-back – (Goeze, 1783) Adult Micro:  CAT 1 – Distinctive Species –       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Green –  Rare / Uncommon / Scarce   
Taxonomy:   Micro   >>  Epermeniidae  >> Epermeniiae
Other Name/s: Garden Lance-wing
ID Difficulty:  green  – easy to identify, generally distinctive and unlikely to be confused with other species.
ID pointers: Forewing is a blackish-brown, usually showing one to three white spots in the mid-wing. There is a large mixed black and brown scale tuft at about a third along the dorsum, with a smaller second one about half and two tiny ones towards the apex.
Distribution:  (Last record: 11 July 2025 at Cromford )  –  From the available data appears to be uncommon but likely to be under-recorded. It should be relatively common on Hogweed.
Flight Period: January /  February /  March /  April /  May /  June /  July /  August /  September /  October /  November /  December /  –  All year in two or more generations. The last generations overwintering. Photographed: Yes –  Photographed By: Clive Ashton; Stephen Plant  © All Rights Reserved
*** Last updated on 29 July 2025 by TD ***
Wingspan: 12-14mm
 Food Plant: Hogweed (Heracleum sphondylium) but also Wild Parsnip (Pastinaca sativa) and Angelica (Angelica sylvestris).
Last Recorded Year: 2025
Last Recorded By – Clive Ashton
Last Recorded General Area – Cromford
IMAGES BELOW:  Cromford, Derbyshire -Clive Ashton© / Allestree – Stephen Plant©

Epermenia chaerophyllella – Garden lance-wing - 31st July 2024 - Cromford -Clive Ashton
Epermenia chaerophyllella – Garden lance-wing – 31st July 2024 – Cromford -Clive Ashton
Epemenia chaerophyllella -16th May 2021 - Belper - Dave Evans
Epemenia chaerophyllella -16th May 2021 – Belper – Dave Evans
Epermenia chaerophyllella - Common Ridge-back - 12/4/2025 - Allestree - Stephen Plant
Epermenia chaerophyllella – Common Ridge-back – 12/4/2025 – Allestree – Stephen Plant
Epermenia chaerophyllella – Garden lance-wing - 31st July 2024 - Cromford -Clive Ashton
Epemenia chaerophyllella -16th May 2021 - Belper - Dave Evans
Epermenia chaerophyllella - Common Ridge-back - 12/4/2025 - Allestree - Stephen Plant

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Distribution Map for Epermenia chaerophyllella

Found 35 records
    ↳ 9 from After 2025
    ↳ 4 from 2020 - 2024
    ↳ 22 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 chaerophyllella

⚠️ 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.

Visit NBN Site


Monthly Records By Year: Epermenia chaerophyllella
( data includes both Larvae and Adult Stages )

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


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


CUSUM Analysis: Epermenia chaerophyllella
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 17 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 2010, 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 chaerophyllella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Epermenia chaerophyllella
( 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.

Records Behind the Map and Charts - Epermenia chaerophyllella – 35 records available

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

TaxonSite NameTetradYearDateCountStageSource
Epermenia chaerophyllellaupper cromford gardenSK25Y202508/07/20251adultvc57_irecords_extract
Epermenia chaerophyllellaupper cromford gardenSK25Y202511/07/20251adultvc57_irecords_extract
Epermenia chaerophyllellaChaddesden GardenSK33T202521/06/20251adultvc57_irecords_extract
Epermenia chaerophyllellaShirland - Hallfieldgate LaneSK35Z202508/04/20251adultvc57_irecords_extract
Epermenia chaerophyllellaAllestree, DerbySK33P202512/04/20251adultvc57_irecords_extract
Epermenia chaerophyllellaIlkeston, DerbyshireSK44K202512/04/20251adultvc57_irecords_extract
Epermenia chaerophyllellarose end meadowsSK25Y202525/04/20251adultvc57_irecords_extract
Epermenia chaerophyllellaStaveley SYA GardenSK47H202521/03/20251adultvc57_irecords_extract
Epermenia chaerophyllellaKing's NewtonSK32Y202531/03/20251adultvc57_irecords_extract
Epermenia chaerophyllellaLower Gamesley VCSK09C202431/08/202410larvavc57_irecords_extract
Epermenia chaerophyllellaupper cromford gardenSK25Y202431/07/20241adultvc57_irecords_extract
Epermenia chaerophyllellaBelperSK34U202116/05/20211adultvc57_irecords_extract
Epermenia chaerophyllellaWoodland AveSK43R202129/03/20211adultvc57_irecords_extract
Epermenia chaerophyllellaBackgarden MarehaySK34Z201725/03/20171adultvc57_irecords_extract
Epermenia chaerophyllellaBackgarden MarehaySK34Z201729/03/20171adultvc57_irecords_extract
Epermenia chaerophyllellaBackgarden MarehaySK34Z201415/07/20141adultvc57_irecords_extract
Epermenia chaerophyllellaMillennium Meadow NR, DuffieldSK34L201403/05/20141Adultvc57_danes_bc_data
Epermenia chaerophyllellaHartshorne Wood, Hartshorne, SwadlincoteSK32G201330/09/20131Adultvc57_danes_bc_data
Epermenia chaerophyllellaMillers DaleSK17G201103/09/20111Larvaevc57_danes_bc_data
Epermenia chaerophyllellaLathkill DaleSK26D201004/09/20101Larval Feeding Signsvc57_danes_bc_data
Epermenia chaerophyllellaBamfordSK28B201021/09/20101Larval Feeding Signsvc57_danes_bc_data
Epermenia chaerophyllellaHardhurst Rd, Alvaston, DerbySK33W201006/04/20102Adultvc57_danes_bc_data
Epermenia chaerophyllellaTissington Trail, AshbourneSK14T200901/10/20091Casevc57_danes_bc_data
Epermenia chaerophyllellaMidway Rd,Midway,SwadlincoteSK32A200804/07/20081Adultvc57_danes_bc_data
Epermenia chaerophyllellaHague Bar, New MillsSJ98X200703/09/20071Larvaevc57_danes_bc_data
Epermenia chaerophyllellaMousley Bottom, New MillsSJ98X200703/09/20071Larvaevc57_danes_bc_data
Epermenia chaerophyllellaCarr Vale NR,BolsoverSK47K200613/09/20061Larvaevc57_danes_bc_data
Epermenia chaerophyllellaEdgecote Drive,Newhall,SwadlincoteSK22V200413/07/20041Adultvc57_danes_bc_data
Epermenia chaerophyllellaCheetham, Hill, MellorSJ98Z199802/09/19981Larvaevc57_danes_bc_data
Epermenia chaerophyllellaAston Rd, HopeSK18R199802/09/19981Larval Minevc57_danes_bc_data
Epermenia chaerophyllellaCataract Bridge, MellorSJ98U199805/09/19981Larvaevc57_danes_bc_data
Epermenia chaerophyllellaLydiate, Thornsett, New MillsSK08D199818/08/19981Larvaevc57_danes_bc_data
Epermenia chaerophyllellaOld Hall Lane, MellorSJ98U199819/07/19981Pupaevc57_danes_bc_data
Epermenia chaerophyllellaLinnet Clough, MellorSJ98T199819/07/19981Pupaevc57_danes_bc_data
Epermenia chaerophyllellaFernhill Rd, MellorSJ98U199830/07/19981Larvaevc57_danes_bc_data

Phaulernis dentella       Epermenia falciformis

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