no image picture
49.071X  – Acleris emargana/effractana

Blue –  Generally Common / Widespread   
Taxonomy:   Micro   >>  Tortricidae  >> Tortricinae
** This page is to record aggregated records only – see individual species pages for additional information **
ID Difficulty:  Red – difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.
Confusion Species: Acleris emargana – Scalloped Tortrix; Acleris effractana – Hook-winged Tortrix
ID pointers: Acleris emargana has recently been split from Acleris effractana and national guidelines now require all records for these two species to be confirmed by gen det. Where this has not taken place the records should be submitted as Acleris emargana – effractana agg.
Distribution:  A.emargana is widely distributed across the recording area. See separate species page.
General Comment: None
Flight Period: July /  August /  September /  October Moth Activity: Nocturnal   – and is attracted to light Photographed: No –  Photographed By: Not Recorded
*** Last updated on 2 October 2025 by RP ***
Wingspan: 18-22mm
Food Plant: Salix species
Specific Recorded History Dates for Common [Blue code Blue-coded] moths is not displayed/updated in this tab. However, all verified records for this moth are listed in the RECORDS tab below.

Selected Images:  



Temporal Distribution Chart
Adults: (between 2023 - 2023)
(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 Acleris emargana/effractana

Found 1 records
    ↳ from 2026+
    ↳ 1 from 2020 - 2025
    ↳ 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 - No LSID found for: Acleris emargana/effractana
This moth may be an aggregate and as such no specific records of distribution exist.


Monthly Records By Year: Acleris emargana/effractana
( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Acleris emargana/effractana
( data is based on 'Adult' stage records only )

First/Last Recorded Dates: Acleris emargana/effractana
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: Acleris emargana/effractana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Acleris emargana/effractana
AGR: 0%   |   Total % Change: 0%
Acleris emargana/effractana
Insufficient records/data for an AGR analysis
Years Analysed: 2000 – 2026

Hectad (10kmx10km) Coverage: Acleris emargana/effractana
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Acleris emargana/effractana

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 - Acleris emargana/effractana – 1 records available

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

Site Name Tetrad Date Count Stage Recorder Source RecordKey
Buxton SK, UK SK07S 30/09/2023 1 Adult Orridge, Steve vc57_irecords_extract iBRC33290441

Scroll to Top