Leaf-miner: CAT A – Recorded accepted without the leaf or a photo – Larval Case: C1 – Distinctive Species – 
– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Significant Record / Very Rare / Vagrant
– care required in the identification process, as confusion with similar species is likely – quality photographs required. Confusion Species: Semioscopis steinkellneriana
Bow Wood 23/3/2026 ©Clive Ashton/
Image Gallery
No gallery images found for this moth.
Temporal Distribution Chart
Adults: (between 2011 - 2026)
Distribution Map for Semioscopis avellanella
↳ 1 from 2026+
↳ from 2020 - 2025
↳ 1 from Before 2020
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 – Semioscopis avellanella
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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.
Monthly Records By Year:
Semioscopis avellanella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year:
Semioscopis avellanella
( data is based on 'Adult' stage records only )
First/Last Recorded Dates: Semioscopis avellanella
Adult-only & Anything [Larvae, Pupae, Adult, Mines]
Shading shows moth presence between dates
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Recordings By Year: Semioscopis avellanella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Semioscopis avellanella
AGR: 2.74% | Total % Change: 50%
Hectad (10kmx10km) Coverage: Semioscopis avellanella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Semioscopis avellanella
Semioscopis avellanella
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 - Semioscopis avellanella – 2 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Recorder | Source | RecordKey |
|---|---|---|---|---|---|---|---|
| Bow Wood | SK35D | 23/03/2026 | 3 | adult | Ashton, Clive | vc57_irecords_extract | iBRC50739069 |
| Shinningcliffe Wood,Ambergate | SK35K | 11/03/2011 | 2 | Adult | Dave Budworth;D.A. Clarke;P. Patrick | vc57_danes_bc_data | LC000334001CP6RG |