Haworth's Pug       Maple Pug
70.147 BF1811  –  Geometridae –  Larentiinae – Eupithecia tenuiata – Slender Pug – (Hübner, 1813) Adult Macro:  CAT 2 – Can be confused with other species – Can be confused with other species       PDF Icon – click for Adult Macro Verification Guidelines
Green –  Rare / Uncommon / Scarce   
Taxonomy:   Macro   >>  Geometridae  >> Larentiinae
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Maple Pug
ID pointers: A greyish-brown ground colour with weakly defined markings and a somewhat rounded forewing. The discal spot has a dot-like appearance. The wavy subterminal line is less well marked than on Maple Pug which is a confusion species.
Distribution:  (Last record: 13 July 2025 at Longdendale (Torside) )  –  A resident that is uncommon and locally distributed in Derbyshire. Very few records each year. 
Flight Period: June /  July /  –  On the wing – June – July Photographed: Yes –  Photographed By: Doug Aston, Brian Hobby, Christian Heintzen, Dave Evans   © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: c. 15mm
Forewing: 8-10mm Food Plant: Catkins of Willow.
Last Recorded Year: 2025
Last Recorded By – Christian Heintzen
Last Recorded General Area – Longdendale (Torside)
Selected Images:  Doug Aston © and Brian Hobby © / Christian Heintzen © / Belper (2024) Dave Evans© / Longdendale (2025) Christian Heintzen©

Slender Pug - Christian Heintzen
Slender Pug – Christian Heintzen
Slender Pug - Doug Aston
Slender Pug – Doug Aston
Slender Pug - Brian Hobby
Slender Pug – Brian Hobby
Slender Pug - 21st July 2024 - Belper - Dave Evans
Slender Pug – 21st July 2024 – Belper – Dave Evans
Slender Pug - 13th July 2025 - Longdendale (Torside) - Christian Heintzen
Slender Pug – 13th July 2025 – Longdendale (Torside) – Christian Heintzen
Slender Pug - Christian Heintzen
Slender Pug - Doug Aston
Slender Pug - Brian Hobby
Slender Pug - 21st July 2024 - Belper - Dave Evans
Slender Pug - 13th July 2025 - Longdendale (Torside) - Christian Heintzen


Image Gallery

No gallery images found for this moth.


Distribution Map for Eupithecia tenuiata

Found 96 records
    ↳ 10 from After 2025
    ↳ 26 from 2020 - 2024
    ↳ 60 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 – Eupithecia tenuiata

⚠️ 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: Eupithecia tenuiata
( data includes both Larvae and Adult Stages )

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


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


CUSUM Analysis: Eupithecia tenuiata
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 5 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 2009, reaching above average levels. The lowest population point occurred near 2020, 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: Eupithecia tenuiata
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Eupithecia tenuiata
( 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 - Eupithecia tenuiata – 96 records available

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

Site NameTetradDateCountStageSource
Chaddesden GardenSK33T01/07/20251adultvc57_irecords_extract
Chaddesden GardenSK33T03/07/20251adultvc57_irecords_extract
Findern, DerbyshireSK33A11/07/20251adultvc57_irecords_extract
Inkersall gardenSK47G18/07/20251adultvc57_irecords_extract
Shirland - Hallfieldgate LaneSK35Z11/07/20251adultvc57_irecords_extract
BelperSK34U25/07/20251adultvc57_irecords_extract
Staveley DerbyshireSK47H28/07/20251adultvc57_irecords_extract
Ilkeston, DerbyshireSK44K26/07/20251adultvc57_irecords_extract
Longdendale, Torside grassland and willow carrSK09U13/07/20251adultvc57_irecords_extract
Belper, DerbyshireSK34N18/07/20251adultvc57_irecords_extract
Stonebroom.SK45E03/08/20242adultvc57_irecords_extract
Jim Mart Nature ReserveSK36S17/08/20241adultvc57_irecords_extract
BelperSK34U20/07/20241adultvc57_irecords_extract
BelperSK34U21/07/20241adultvc57_irecords_extract
BelperSK34N29/07/20241adultvc57_irecords_extract
Glossop, Gnat Hole Rough FieldsSK09L13/07/20241adultvc57_irecords_extract
King's NewtonSK32Y29/07/20241adultvc57_irecords_extract
Findern, Derbyshire, DEAZSK33A26/06/20241adultvc57_irecords_extract
Allestree, DerbySK33P01/05/20242adultvc57_irecords_extract
Ninelands RoadSK28F11/08/20231adultvc57_irecords_extract
Haddon HallSK26I10/08/20231adultvc57_irecords_extract
MellorSJ98Z06/07/20231adultvc57_irecords_extract
HathersageSK28F07/07/20231adultvc57_irecords_extract
Allestree, Derby, Elm GroveSK34K26/06/20231adultvc57_irecords_extract
Hathersage, Derbyshire, UKSK28F29/07/20221adultvc57_irecords_extract
Findern, Derbyshire, DEAZSK33A11/07/20221adultvc57_irecords_extract
Findern, Derbyshire, DEAZSK33A17/07/20221adultvc57_irecords_extract
Findern, Derbyshire, DEAZSK33A18/07/20221adultvc57_irecords_extract
HathersageSK28F29/07/20221adultvc57_irecords_extract
Kirk Hallam, IlkestonSK44K17/07/20221adultvc57_irecords_extract
Hathersage, Derbyshire, UKSK28F20/07/20211adultvc57_irecords_extract
Kirk Hallam, IlkestonSK44K02/07/20214adultvc57_irecords_extract
Ninelands RoadSK28F11/08/20201adultvc57_irecords_extract
Midway, Derbys.SK32A14/06/20201adultvc57_irecords_extract
Kirk Hallam, IlkestonSK44K08/06/20201adultvc57_irecords_extract
Kirk Hallam, IlkestonSK44K21/05/20201adultvc57_irecords_extract
Norton LeesSK38L18/07/20191adultDanes_2019-2021
Waingroves WoodsSK44E18/07/20181adultvc57_irecords_extract
DRONFIELD WOODHOUSESK37J11/06/20171adultvc57_irecords_extract
DRONFIELD WOODHOUSESK37J12/06/20172adultvc57_irecords_extract
DRONFIELD WOODHOUSESK37J23/06/20171adultvc57_irecords_extract
DRONFIELD WOODHOUSESK37J18/06/20171adultvc57_irecords_extract
DRONFIELD WOODHOUSESK37J13/06/20171adultvc57_irecords_extract
DRONFIELD WOODHOUSESK37J10/06/20171adultvc57_irecords_extract
Backgarden MarehaySK34Z20/07/20161adultvc57_irecords_extract
Backgarden MarehaySK34Z21/07/20141adultvc57_irecords_extract
Cross Green Cottages,Flint Lane,South DarleySK26Q03/06/20141Adultvc57_danes_bc_data
DRONFIELD WOODHOUSESK37J25/07/20131adultvc57_irecords_extract
DRONFIELD WOODHOUSESK37J23/07/20131adultvc57_irecords_extract
DRONFIELD WOODHOUSESK37J12/07/20131adultvc57_irecords_extract
DRONFIELD WOODHOUSESK37J11/07/20131adultvc57_irecords_extract
DRONFIELD WOODHOUSESK37J07/07/20131adultvc57_irecords_extract
George St,BelperSK34N18/05/20131Adultvc57_danes_bc_data
Dronfield WoodhouseSK37J16/08/20121adultvc57_irecords_extract
Dronfield WoodhouseSK37J04/08/20121adultvc57_irecords_extract
Dronfield WoodhouseSK37J05/07/20121adultvc57_irecords_extract
Dronfield WoodhouseSK37J12/07/20121adultvc57_irecords_extract
Dronfield WoodhouseSK37J25/07/20121adultvc57_irecords_extract
Dronfield WoodhouseSK37J22/07/20122adultvc57_irecords_extract
Dronfield WoodhouseSK37J16/06/20121adultvc57_irecords_extract
Dronfield WoodhouseSK37J17/06/20121adultvc57_irecords_extract
Dronfield WoodhouseSK37J18/06/20121adultvc57_irecords_extract
Dronfield WoodhouseSK37J19/06/20121adultvc57_irecords_extract
Dronfield WoodhouseSK37J20/06/20123adultvc57_irecords_extract
Dronfield WoodhouseSK37J21/06/20122adultvc57_irecords_extract
Dronfield WoodhouseSK37J24/06/20121adultvc57_irecords_extract
Dronfield WoodhouseSK37J25/06/20121adultvc57_irecords_extract
Dronfield WoodhouseSK37J27/06/20121adultvc57_irecords_extract
Dronfield WoodhouseSK37J28/06/20122adultvc57_irecords_extract
Dronfield WoodhouseSK37J29/06/20121adultvc57_irecords_extract
The Hollies,Station Rd,Darley DaleSK26R10/06/20121Adultvc57_danes_bc_data
George St,BelperSK34N09/06/20121Adultvc57_danes_bc_data
Nether Close, DuffieldSK34M26/06/20121Adultvc57_danes_bc_data
George St,BelperSK34N24/04/20121Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R01/08/20111Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R02/08/20111Adultvc57_danes_bc_data
Dronfield WoodhouseSK37J18/07/20111adultvc57_irecords_extract
George St,BelperSK34N24/04/20112Adultvc57_danes_bc_data
Dronfield WoodhouseSK37J25/06/20101adultvc57_irecords_extract
Newshaw Lane, Hadfield, GlossopSK09C12/06/20101Adultvc57_danes_bc_data
Main Street, Kings NewtonSK32Y02/08/20092Adultvc57_irecords_extract
The Hollies,Station Rd,Darley DaleSK26R23/06/20081Adultvc57_danes_bc_data
Bristol Rd,IlkestonSK44R22/05/20082Adultvc57_danes_bc_data
Carsington Resr (Rangers' Base)SK25K02/08/20052Adultvc57_danes_bc_data
Main Street, Kings NewtonSK32Y13/06/20032Adultvc57_irecords_extract
Main St,Kings Newton,MelbourneSK32Y13/06/20032Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A29/07/20021Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R29/07/20001Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R29/07/20001Adultvc57_danes_bc_data
Shipley ParkSK44H16/08/19971Adultvc57_danes_bc_data
Shipley ParkSK44H16/08/19971Adultvc57_danes_bc_data
Elvaston Park, DerbySK43B22/05/19931Adultvc57_danes_bc_data
Mapperley Wood, Shipley ParkSK44G14/08/19871Adultvc57_danes_bc_data
Pond House, Mapperley Res, IlkestonSK44G25/07/19861Adultvc57_danes_bc_data
Clough Wood,Darley DaleSK26K23/04/19772Larvaevc57_danes_bc_data
Clough Wood,Darley DaleSK26K21/04/19741Larvaevc57_danes_bc_data

Haworth's Pug       Maple Pug

Copyright Tony Davison © 2025 www.derbyshiremoths.org

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