6.003 BF154 – Oak Cutter – Heliozela sericiella – (Haworth, 1828)
Adult Micro: CAT 4 – Dissection required – 
Leaf-miner: CAT L – The leaf or a Photo required – 
Larval Case: C1 – Distinctive Species –
– click for General Verification Guidelines | – click for Specific Verification Guidelines
Leaf-miner: CAT L – The leaf or a Photo required – Larval Case: C1 – Distinctive Species – – click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Uncertain/Unknown – Insufficient Data 
– Leaf-miner 
– Day-flying
** Identification write-up required
**
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.Confusion Species: Heliozela resplendella, Heliozela hammoniella
ID pointers: No information at this time
Distribution: (Last record: 8 April 2025 at Carver's Rocks ) – Uncertain due to insufficient data – 1 record from 1926 and one from 2018
General Comment: None Mine Period Additional: The larvae initially mining the twigs of Oak, later entering the base of the leaf through the midrib.
Mine ID Difficulty:
– Mine cannot be identified without breeding through and then adult may need to be examined by Gen Det Prep. Mine Type/s: Not Recorded
Mine Feeding Method/s: Not Recorded
Mine Comment: None.
*** Last updated on 18 March 2026 by RP ***
Last Recorded Year: 2025
Last Recorded By – Graham Finch
Last Recorded General Area – Carver's Rocks
Selected Images:
Carver’s Rocks – 8/4/2025 – Graham Finch© and Gen Det – Graham Finch©
Image Gallery
No gallery images found for this moth.
Temporal Distribution Chart
Adults: (between 1993 - 1993) | Immatures: (between 2001 - 2018)
(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 Heliozela sericiella
Found 7 records
↳ from 2026+
↳ from 2020 - 2025
↳ 7 from Before 2020
↳ from 2026+
↳ from 2020 - 2025
↳ 7 from Before 2020
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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 – Heliozela sericiella
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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:
Heliozela sericiella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year:
Heliozela sericiella
( data is based on 'Adult' stage records only )
First/Last Recorded Dates: Heliozela sericiella
Adult-only & Anything [Larvae, Pupae, Adult, Mines]
Shading shows moth presence between dates
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Recordings By Year: Heliozela sericiella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Heliozela sericiella
AGR: 0% | Total % Change: 0%
Hectad (10kmx10km) Coverage: Heliozela sericiella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Heliozela sericiella
Heliozela sericiella
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.
Mine Periods – Indicative –vs– Recorded Data
Heliozela sericiella
Heliozela sericiella
( data includes both Larvae and Adult Stages )
Mine 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 mine periods [month/s]. The coloured lines represent the actual months seen mining, from site observation records received between 2020-2026.
Records Behind the Map and Charts - Heliozela sericiella – 7 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Recorder | Source | RecordKey |
|---|---|---|---|---|---|---|---|
| Grange Wood | SK21S | 13/09/2018 | 1 | Mine | Finch, Graham Leonard | vc57_irecords_extract | iBRC35106432 |
| Ladybower Resr | SK18U | 03/09/2010 | 1 | Larval Mine | S.H. Hind | vc57_danes_bc_data | LC000334001COXJD |
| Upper Wood, Howden Resr | SK19R | 25/08/2010 | 1 | Larval Mine | S.H. Hind | vc57_danes_bc_data | LC000334001CP09K |
| Padley Gorge, Nether Padley | SK27P | 19/08/2010 | 1 | Larval Mine | S.H. Hind | vc57_danes_bc_data | LC000334001CP6HQ |
| Linacre | SK37L | 13/10/2009 | 1 | Larval Mine | S.H. Hind | vc57_danes_bc_data | LC000334001CP54X |
| Brackley Gate, nr Coxbench | SK34W | 03/11/2001 | 1 | Larval Mine | S.H. Hind | vc57_danes_bc_data | LC000334001COR04 |
| Clough Wood,Darley Dale | SK26K | 27/04/1993 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001CP0ZY |