49.207 BF1119  –  Tortricidae –  Olethreutinae – Ancylis geminana – Willow Hook-wing – (Donovan, 1806) Adult Micro:  CAT 3 – Very Rare/Scarce/Migrant/Adventive – confusion with leaf mines       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Brown –  Significant Record / Very Rare / Vagrant    
Taxonomy:   Micro   >>  Tortricidae  >> Olethreutinae
Other Name/s: Festooned Roller
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Ancylis uncella (Heather Hook-wing); Ancylis diminutana (Rufous Hook-wing) Ancylis subarcuana
(Grey Hook-wing):
ID pointers: The forewing extends into a lobe at the apex, grey-brown in colour can be tinged reddish brown The dorsum is marked with greyish created a distinctive broad streak that enters the forewing as a blotch at about a half.
Distribution:  (First record: 1977 at Moss Valley )  –  (Last record: 3 July 2025 at Darwin Forest, Matlock )  –  Harrison & Sterling two records from 1977 – One trapped overnight at Darwin Forest on 3/7/2025.
General Comment: None
Flight Period: May /  June /  July /  August –  An extended emergence period between May – August Moth Activity: Cathemeral  Photographed: Yes –  Photographed By: Dave Evans  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 15mm
Food Plant: Willows (Salix spp) Sallow
Last Recorded Year: 2025
First Recorded Year: 1977
Last Recorded By – Dave Evans
Last Recorded General Area – Darwin Forest, Matlock

Selected Images:  

Darwin Forest 3/7/2025 1st record since 1977 – Dave Evans©



Distribution Map for Ancylis geminana

Found 1 records
    ↳ 1 from After 2025
    ↳ 0 from 2020 - 2024
    ↳ 0 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 – Ancylis geminana

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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: Ancylis geminana
( data includes both Larvae and Adult Stages )

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


First/Last Recorded Dates: Ancylis geminana
Adult-only & Anything [Larvae, Pupae, Adult, Mines]

Shading shows moth presence between dates

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Recordings By Year: Ancylis geminana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Ancylis geminana
AGR: 0%   |   Total % Change: 0%
Ancylis geminana
Insufficient records/data for an AGR analysis
Years Analysed: 2000 – 2025
Ancylis geminana
Insufficient records/data for a CUSUM analysis
Years Analysed: 2000 – 2025

Hectad (10kmx10km) Coverage: Ancylis geminana
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Ancylis geminana
( 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 - Ancylis geminana – 1 records available

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

Site NameTetradDateCountStageSource
Darwin ForestSK26X03/07/20251adultvc57_irecords_extract

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