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49.209 BF1119  – Rufous Hook-wing  – Ancylis diminutana  – (Haworth, 1811)
Adult Micro:  CAT 3 – Very rare or scarce species (includes very scarce adventives/immigrants) – confusion with leaf mines       Leaf-miner:  CAT A – Recorded accepted without the leaf or a photo –       Larval Case:  C1 – Distinctive Species –      
PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Brown –  Significant Record / Very Rare / Vagrant    
Taxonomy:   Micro   >>  Tortricidae  >> Olethreutinae
** Photograph required / Identification write up required **
Other Name/s: Small Festooned Roller
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Ancylis geminana (Willow Hook-wing); Ancylis subarcuana (Grey Hook-wing)
Distribution:  (Last record: 1951 )  –  Harrison & Sterling Repton no date; Combs Reservoir 1951:
General Comment: None
Flight Period: May /  June /  July /  August –  May through to August Moth Activity: Cathemeral   – but can be disturbed during the day Photographed: No –  Photographed By: Not Recorded
*** Last updated on 3 January 2026 by RP ***
Wingspan: 12-18mm
Food Plant: Sallow
Last Recorded Year: 1951
Last Recorded By – Not Recorded
Last Recorded General Area – Not Recorded

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Temporal Distribution Chart
(click legend below to show/hide datasets)

Distribution Map for Ancylis diminutana

No records found
Flying
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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 diminutana

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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 diminutana
( data includes both Larvae and Adult Stages )

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

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

Shading shows moth presence between dates

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Recordings By Year: Ancylis diminutana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Ancylis diminutana
AGR: 0%   |   Total % Change: 0%
Ancylis diminutana
Insufficient records/data for an AGR analysis
Years Analysed: 2000 – 2026

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

Flight Periods – Indicative –vs– Recorded Data
Ancylis diminutana

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 2020-2026.

Records Behind the Map and Charts - Ancylis diminutana – 0 records available

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

No records found for Ancylis diminutana.

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