Ancylis laetana - Graham Finch
49.203 BF1123  – Aspen Hook-wing  – Ancylis laetana  – (Fabricius, 1775)
Adult Micro:  CAT 3 – Very rare or scarce species (includes very scarce adventives/immigrants) – confusion with leaf mines      
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Brown –  Significant Record / Very Rare / Vagrant    
Taxonomy:   Micro   >>  Tortricidae  >> Olethreutinae
Other Name/s: Aspen Roller
ID Difficulty:  green  – easy to identify, generally distinctive and unlikely to be confused with other species.
ID pointers: Forewing extends into small lobe at apex. Ground colour white with various black, grey and brown markings. An obscure bluish-grey ocellus.
Distribution:  (Last record: 29 August 2012 at Bilberry Wood, Ambergate )  –  The species is local throughout northern Britain. Appears to be just three records, since 1979, from Crich Chase, Ambergate – 2006,2007 & Bilberry Wood , Ambergate 29/8/2012.
General Comment: None
Flight Period: May /  June –  On the wing during May – June. Moth Activity: Nocturnal   – occasionally attracted to light Photographed: Yes –  Photographed By: Graham Finch  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 13-18mm
Food Plant: Aspen (Populus tremula), Black poplar (P. nigra).
Last Recorded Year: 2012
Last Recorded By – The late Dave Budworth (DaNES)
Last Recorded General Area – Bilberry Wood, Ambergate

Selected Images:  Crich Chase, Derbyshire – Graham Finch© 



Temporal Distribution Chart
Adults: (between 1979 - 2012)
(click legend below to show/hide datasets)
This chart summarises all available historical occurrence records collated by ISO week of the year. It reflects recorder effort and sampling distribution as well as true biological activity, and should be interpreted as an indicative pattern of seasonal occurrence rather than a statistically controlled abundance or phenology model.

Distribution Map for Ancylis laetana

Found 5 records
    ↳ from 2026+
    ↳ from 2020 - 2025
    ↳ 5 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 – Ancylis laetana

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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 laetana
( data includes both Larvae and Adult Stages )

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

First/Last Recorded Dates: Ancylis laetana
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: Ancylis laetana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Ancylis laetana
AGR: -25.82%   |   Total % Change: -83.3%

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

Flight Periods – Indicative –vs– Recorded Data
Ancylis laetana

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 laetana – 5 records available

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

Site Name Tetrad Date Count Stage Recorder Source RecordKey
Bilberry Wood, Ambergate SK35L 29/08/2012 2 Adult Dave Budworth;P. Patrick vc57_danes_bc_data LC000334001COUNF
Crich Chase,Ambergate SK35L 06/06/2007 4 Adult B.L. Statham vc57_danes_bc_data LC000334001COS9P
Crich Chase SK35L 03/06/2006 12 adult Finch, Graham Leonard vc57_irecords_extract iBRC35106122
Crich Chase,Ambergate SK35L 03/06/2006 12 Adult B.L. Statham;G.L. Finch;M.A. Finch vc57_danes_bc_data LC000334001CP2X4
Crich Chase(nr pump station), Ambergate SK35G 13/06/1979 1 Adult F. Harrison vc57_danes_bc_data LC000334001COQB8

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