32.01 BF710  –  Depressariidae –  Depressariinae – Agonopterix conterminella – Willow Brown – (Zeller, 1839) Adult Micro:  CAT 2 – Confusion Species –       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Brown –  Significant Record / Very Rare / Vagrant    
Taxonomy:   Micro   >>  Depressariidae  >> Depressariinae
Other Name/s: Sallow Flat-body
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  A. purpurea
ID pointers: A slender looking Agonopterix – The forewing may be darker towards the base with a prominent basal dash and pale or white beyond on the wing, thorax and head. The twin spots are usually joined, and the central spot is scarcely evident but there is a white, sometimes black, backed spot beyond. There is a pale fascia from the costa in the terminal third of the wing and the termen has spots. There is commonly a red brown colour along the dorsum, which may also be present in front of the twin spots and along the costa.
Distribution:  (First record: 1953 at Combs )  –  (Last record: 13 July 2025 at Longdendale (Torside) )  –  Probably local on Sallow. One record. One from Kings Newton 22/7/2003. One from Longdendale 13/7/2025
Flight Period: July /  August /  September /  –  one generation July – September Moth Activity: Nocturnal   – and is attracted to light Photographed: Yes –  Photographed By: Will Soar, Christian Heintzen  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 17-19mm
Food Plant: Sallows and Willows (salix)
Last Recorded Year: 2025
First Recorded Year: 1953
Last Recorded By – Christian Heintzen
Last Recorded General Area – Longdendale (Torside)

Selected Images:  Kings Newton, Derbyshire – Will Soar © / Longdendale – July 2025 – Christian Heintzen©

 
 


 

Distribution Map for Agonopterix conterminella

Found 2 records
    ↳ 0 from After 2025
    ↳ 0 from 2020 - 2024
    ↳ 2 from Before 2020
Flying
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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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 – Agonopterix conterminella

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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: Agonopterix conterminella
( data includes both Larvae and Adult Stages )
No data returned from the database.

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


First/Last Recorded Dates: Agonopterix conterminella
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: Agonopterix conterminella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Agonopterix conterminella
AGR: 0%   |   Total % Change: 0%
Agonopterix conterminella
Insufficient records/data for an AGR analysis
Years Analysed: 2000 – 2025
Agonopterix conterminella
Insufficient records/data for a CUSUM analysis
Years Analysed: 2000 – 2025

Hectad (10kmx10km) Coverage: Agonopterix conterminella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Agonopterix conterminella
( 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 - Agonopterix conterminella – 2 records available

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

Site NameTetradDateCountStageSource
Main Street, Kings NewtonSK32Y22/07/20031Adultvc57_irecords_extract
Repton area (site not precise)SK32B02/04/19051Adultvc57_danes_bc_data

 
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