Brown-spot Pinion       Red-line Quaker
73.188 BF2265  –  Noctuidae –  Xyleninae – Anchoscelis helvola – Flounced Chestnut – (Linnaeus, 1758) 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   >>  Noctuidae  >> Xyleninae
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
ID pointers: A typical autumn coloured moth. Diagnostic features are broad, pointed forewing, softly marked with a wide dark reddish-brown or purplish- brown band at the base and a slightly narrower one near outer margin. A dark reddish-brown wavy central cross line.
Distribution:  (Last record: 2 October 2024 at Darwin Forest )  –  A resident in Derbyshire that appears to have become very scarce in recent years with few records despite once being widely distributed. A species of deciduous woodland where its principal colonies are located.
General Comment: None Flight Period: September /  October –  September – October – one generation Moth Activity: Nocturnal   – is attracted to light and sugar Photographed: Yes –  Photographed By: Tony Davison  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 30-35mm
Forewing: 16-18mm Food Plant: A variety of broad-leaved trees. Also Heather and bilberry.(Calluna).
Last Recorded Year: October 2024
Last Recorded By – Dave Evans
Last Recorded General Area – Darwin Forest
Selected Images:  Melbourne – Tony Davison© / Darwin Forest – Dave Evans© / Glossop – Christian Heintzen©

73.188 BF2265 - Flounced Chestnut - Noctuidae - Agrochola helvola - Foremark Res - Tony Davison
73.188 BF2265 – Flounced Chestnut – Noctuidae – Agrochola helvola – Foremark Res – Tony Davison
73.188 BF2265 Flounced Chestnut - Dave Evans - 2/10/24
73.188 BF2265 Flounced Chestnut – Dave Evans – 2/10/24
73.188 BF2265 Flounced Chestnut - Christian Heintzen - 19/9/24
73.188 BF2265 Flounced Chestnut – Christian Heintzen – 19/9/24
73.188 BF2265 Flounced Chestnut - Christian Heintzen 27/8/24
73.188 BF2265 Flounced Chestnut – Christian Heintzen – 27/8/24
73.188 BF2265 - Flounced Chestnut - Noctuidae - Agrochola helvola - Foremark Res - Tony Davison
73.188 BF2265 Flounced Chestnut - Dave Evans - 2/10/24
73.188 BF2265 Flounced Chestnut - Christian Heintzen - 19/9/24
73.188 BF2265 Flounced Chestnut - Christian Heintzen 27/8/24


Image Gallery

Flounced Chestnut - 27th August 2024 - Glossop - Christian Heintzen Flounced Chestnut -16th September 2024 - Glossop - Christian Heintzen Flounced Chestnut 2nd October 2024 - Darwin Forest - Dave Evans Flounced Chestnut - Melbourne - Tony Davison©

Distribution Map for Anchoscelis helvola

Found 87 records
    ↳ 1 from After 2025
    ↳ 11 from 2020 - 2024
    ↳ 75 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 – Anchoscelis helvola

⚠️ 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: Anchoscelis helvola
( data includes both Larvae and Adult Stages )

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


First/Last Recorded Dates: Anchoscelis helvola
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: Anchoscelis helvola
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Anchoscelis helvola
AGR: -6.11%   |   Total % Change: -75%


CUSUM Analysis: Anchoscelis helvola
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 6 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 10 (October) 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 2006, reaching above average levels. The lowest population point occurred near 2025, 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: Anchoscelis helvola
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Anchoscelis helvola
( 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 - Anchoscelis helvola – 87 records available

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

Site NameTetradDateCountStageSource
Darwin ForestSK26X03/10/20251adultvc57_irecords_extract
Darwin ForestSK26X02/10/20241adultvc57_irecords_extract
Glossop, Gnat Hole Rough FieldsSK09L19/09/20241adultvc57_irecords_extract
Glossop, Upper Bray CloughSK09K27/08/20241adultvc57_irecords_extract
Glossop, Gnat Hole Rough FieldsSK09L26/09/20231adultvc57_irecords_extract
Longdendale, Wildboar CloughSK09U20/09/20221adultvc57_irecords_extract
Glossop, Shawmoor PlantationSK09F19/09/20221adultvc57_irecords_extract
Glossop, Hague Street, Hay meadowSK09G07/09/20221adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y23/10/20211Adultvc57_irecords_extract
TaddingtonSK17K12/09/20211Adultvc57_irecords_extract
Midway, Derbys.SK32A14/10/20201adultvc57_irecords_extract
Allestree, DerbySK33P14/08/20202adultvc57_irecords_extract
Pleasley Pit CP, PleasleySK46X28/09/20191Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X04/10/20181Adultvc57_danes_bc_data
BelperSK34U27/09/20181adultvc57_irecords_extract
Pleasley Pit CP, PleasleySK46X14/10/20171Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X01/10/20172Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X30/09/20171Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X29/09/20172Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X23/09/20171Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X16/10/20161Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X08/10/20161Adultvc57_danes_bc_data
Welbeck Drive,WingerworthSK36T09/10/20151Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X09/10/20151Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X07/10/20151Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X27/09/20141Adultvc57_danes_bc_data
Shipley Park,IlkestonSK44H08/10/20131Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X08/10/20131Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X07/10/20131Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X05/10/20132Adultvc57_danes_bc_data
Welbeck Drive, WingerworthSK36T04/10/20131Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X04/10/20131Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X02/10/20131Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X23/09/20131Adultvc57_danes_bc_data
Bamford St,RipleySK34Z23/10/20111Adultvc57_danes_bc_data
Backgarden MarehaySK34Z08/10/20111adultvc57_irecords_extract
Bamford St,RipleySK34Z08/10/20111Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R05/10/20111Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R03/10/20111Adultvc57_danes_bc_data
Backgarden MarehaySK34Z01/10/20111adultvc57_irecords_extract
Bamford St,RipleySK34Z01/10/20111Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S30/09/20111Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R29/09/20111Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S29/09/20111Adultvc57_danes_bc_data
Sitche's Plantation,Beeley MoorSK26Y28/09/20112Adultvc57_danes_bc_data
Sitche's Plantation, Beeley Moor, BeeleySK26Y28/09/20112Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R19/09/20111Adultvc57_danes_bc_data
Slagmill Plantation,Beeley MoorSK36E15/09/20113Adultvc57_danes_bc_data
Clough Wood,Darley DaleSK26K27/07/20111Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S29/09/20091Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S19/09/20081Adultvc57_danes_bc_data
Glossop (Shire Hill Quarry)SK09M01/09/20081Adultvc57_danes_bc_data
Church St,Holloway,MatlockSK35I24/09/20061Adultvc57_danes_bc_data
FOREMARK RESERVOIRSK32H23/09/20065adultvc57_irecords_extract
Foremark Resr, TicknallSK32H23/09/20065Adultvc57_danes_bc_data
Pleasley Park (centre clearing)SK56H04/10/20052Adultvc57_danes_bc_data
Edale YHASK18N23/09/20052Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S17/10/20041Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S15/10/20045Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S26/09/20041Adultvc57_danes_bc_data
FOREMARK RESERVOIRSK32G25/09/20034adultvc57_irecords_extract
Carvers Rocks (rocks area), Hartshorne, SwadlincoteSK32G25/09/20034Adultvc57_danes_bc_data
Carvers Rocks (rocks area), Hartshorne, SwadlincoteSK32G25/09/20034Adultvc57_danes_bc_data
Stocksmoor Farm, Ashover Rd, Old TuptonSK36S14/09/19963Adultvc57_danes_bc_data
Shipley Wood, Shipley ParkSK44L15/10/19822Adultvc57_danes_bc_data
Shipley Wood, Shipley ParkSK44L01/10/19824Adultvc57_danes_bc_data
Clough Wood,Darley DaleSK26K18/09/19821Adultvc57_danes_bc_data
Clough Wood,Darley DaleSK26K01/05/19801Adultvc57_danes_bc_data
Moorlawn Ave, HolymoorsideSK36P10/10/19781Adultvc57_danes_bc_data
Moorlawn Ave, HolymoorsideSK36P10/10/19781Adultvc57_danes_bc_data
Field Studies Building, Drakelow Nature TrailSK21J17/09/19774Adultvc57_danes_bc_data
Welbeck Rd, BolsoverSK47Q17/09/19691Adultvc57_danes_bc_data
Berry St, Hepthorne Lane, North WingfieldSK46C23/10/19681Adultvc57_danes_bc_data
The Old Manse, Ault Hucknall, GlapwellSK46S04/10/19682Adultvc57_danes_bc_data
Berry St, Hepthorne Lane, North WingfieldSK46C03/10/19681Adultvc57_danes_bc_data
Berry St, Hepthorne Lane, North WingfieldSK46C26/09/19681Adultvc57_danes_bc_data
The Old Manse, Ault Hucknall, GlapwellSK46S19/09/19681Adultvc57_danes_bc_data
Newbold Drive, ChesterfieldSK37R10/10/19661Adultvc57_danes_bc_data
Newbold Rd, ChesterfieldSK37R12/10/19621Adultvc57_danes_bc_data
Newbold Rd, ChesterfieldSK37R01/10/19621Adultvc57_danes_bc_data
Newbold Rd, ChesterfieldSK37R22/09/19621Adultvc57_danes_bc_data
Newbold Ave, ChesterfieldSK37R02/09/19591Adultvc57_danes_bc_data
Newbold Ave, ChesterfieldSK37R03/10/19581Adultvc57_danes_bc_data
Newbold Ave, ChesterfieldSK37R02/10/19582Adultvc57_danes_bc_data
Newbold Ave, ChesterfieldSK37R02/10/19571Adultvc57_danes_bc_data
Sinfin, DerbySK33F01/09/18951Adultvc57_danes_bc_data
Sinfin, DerbySK33F01/09/18951Adultvc57_danes_bc_data

Brown-spot Pinion       Red-line Quaker

Copyright Tony Davison © 2025 www.derbyshiremoths.org

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