16.01 BF435  –  Yponomeutidae –  Yponomeutinae – Zelleria hepariella – Ash Spinner – (Stainton, 1849) Adult Micro:  CAT 2 – Confusion Species –       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Green –  Rare / Uncommon / Scarce   
Taxonomy:   Micro   >>  Yponomeutidae  >> Yponomeutinae
Other Name/s: Brown Ash Ermine
ID Difficulty:  green  – easy to identify, generally distinctive and unlikely to be confused with other species.
ID pointers: Usually in a declining resting posture. The forewing being slightly hooked at the apex, and is usually brown or reddish brown, or chestnut brown.Quite distinctive
Distribution:  (Last record: 29 July 2024 at Norton Lees )  –  Uncertain/ Unknown in the county, but likely to be common on Ash (Fraxinus excelsior) seems to be few records so likely to be under recorded.
Flight Period: January /  February /  March /  April /  July /  August /  September /  October /  November /  December /  –  -July – April overwinters Photographed: Yes –  Photographed By: Will Soar  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 10-15mm
Food Plant: Ash
Last Recorded Year: 2024
Last Recorded By – Pete Mellor
Last Recorded General Area – Norton Lees

Selected Images:  Kings Newton, Derbyshire – Will Soar ©

 
 


 

Distribution Map for Zelleria hepariella

Found 23 records
    ↳ 3 from After 2025
    ↳ 7 from 2020 - 2024
    ↳ 13 from Before 2020
Flying
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 – Zelleria hepariella

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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: Zelleria hepariella
( data includes both Larvae and Adult Stages )

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


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


CUSUM Analysis: Zelleria hepariella
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 14 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 8 (August) 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: Zelleria hepariella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Zelleria hepariella
( 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 - Zelleria hepariella – 23 records available

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

Site NameTetradDateCountStageSource
Staveley DerbyshireSK47H01/08/20251adultvc57_irecords_extract
Glossop, Hague StreetSK09G07/05/20251adultvc57_irecords_extract
Darley BridgeSK26Q07/03/20251adultvc57_irecords_extract
Norton Lees, Sheffield (VC)SK38L29/07/20241adultvc57_irecords_extract
Norton Lees, Sheffield, UKSK38L29/07/20241Adultvc57_irecords_extract
King's NewtonSK32Y29/07/20241adultvc57_irecords_extract
Woodland AveSK43R07/07/20231adultvc57_irecords_extract
Woodland AveSK43R19/07/20221Adultvc57_irecords_extract
Woodland AveSK43R08/10/20211adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y12/07/20201Adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y16/07/20181Adultvc57_irecords_extract
Waingroves Wood Moth and Bat EventSK44E08/08/20151adultvc57_irecords_extract
Dean Hollow (scrub), nr CromfordSK25Y01/09/20121Adultvc57_danes_bc_data
Carr WoodSK45A11/08/20121adultvc57_irecords_extract
Backgarden MarehaySK34Z12/08/20121adultvc57_irecords_extract
Backgarden MarehaySK34Z12/08/20121adultvc57_irecords_extract
Carr Wood, RipleySK45A11/08/20121Adultvc57_danes_bc_data
Bamford St,RipleySK34Z12/08/20122Adultvc57_danes_bc_data
Carr WoodSK45A12/05/20121adultvc57_irecords_extract
Carr Wood, RipleySK45A12/05/20121Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R05/04/20111Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A13/09/20081Adultvc57_danes_bc_data
Wood Lane,Newhall,SwadlincoteSK22V03/09/20041Adultvc57_danes_bc_data

 
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