49.154 BF1087 – Dusky Marble – Orthotaenia undulana – ([Denis & Schiffermüller], 1775)
Adult Micro: CAT 2 – Can be confused with other species – 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
– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Rare / Uncommon / Scarce
** Identification write up required for species page
**
– care required in the identification process, as confusion with similar species is likely – quality photographs required. Confusion Species: Celypha lacunana (Common Marble); Celypha cespitana (Thyme Marble)
Distribution: (Last record: 6 January 2024 at Bow Wood Lea ) – Appears to be an uncommon species in the recording area – scattered records few and far between – should be more common on the moors as Bilberry is a food plant.Harrison & Sterling listed records from 1905 – 1956 from a number of areas. Latest accounts are DaNES 10 records between 1989 – 2013 and iRecord 8 accounts between 2003 – 2024.
General Comment: None *** Last updated on 14 January 2026 by RP ***
Last Recorded Year: 2024
Last Recorded By – Alison Pritchard (iRecord)
Last Recorded General Area – Bow Wood Lea
Selected Images:
Cromford (2023) – Clive Ashton©
Image Gallery
No gallery images found for this moth.
Temporal Distribution Chart
Adults: (between 1989 - 2025)
(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 Orthotaenia undulana
Found 25 records
↳ from 2026+
↳ 12 from 2020 - 2025
↳ 13 from Before 2020
↳ from 2026+
↳ 12 from 2020 - 2025
↳ 13 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 – Orthotaenia undulana
⚠️ Please wait for the map to load fully – do not click the link shown.
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:
Orthotaenia undulana
( data includes both Larvae and Adult Stages )
Monthly Counts By Year:
Orthotaenia undulana
( data is based on 'Adult' stage records only )
First/Last Recorded Dates: Orthotaenia undulana
Adult-only & Anything [Larvae, Pupae, Adult, Mines]
Shading shows moth presence between dates
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Recordings By Year: Orthotaenia undulana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Orthotaenia undulana
AGR: 2.35% | Total % Change: 66.7%
Hectad (10kmx10km) Coverage: Orthotaenia undulana
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Orthotaenia undulana
Orthotaenia undulana
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 - Orthotaenia undulana – 25 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Recorder | Source | RecordKey |
|---|---|---|---|---|---|---|---|
| Longdendale, Wildboar Clough Woodland | SK09U | 18/06/2025 | 1 | adult | Heintzen, Christian | vc57_irecords_extract | iBRC43979506 |
| Derbyshire Wild Life Trust Long Clough | SK09G | 15/06/2025 | 1 | adult | Heintzen, Christian | vc57_irecords_extract | iBRC43979415 |
| Markham Vale North tip , Derbyshire | SK47L | 01/06/2025 | 3 | adult | Morris, Sid | vc57_irecords_extract | iBRC42025602 |
| Derbyshire, UK | SK27I | 18/06/2024 | 1 | Adult | Moores, Stephen | vc57_irecords_extract | iBRC38929437 |
| Bow Wood, Lea | SK35D | 01/06/2024 | 1 | adult | Pritchard, Alison | vc57_irecords_extract | iBRC36235052 |
| Allestree, Derby | SK33P | 10/07/2023 | 2 | adult | Plant, Stephen | vc57_irecords_extract | iBRC48383368 |
| upper cromford garden | SK25Y | 09/06/2023 | 1 | adult | Ashton, Clive | vc57_irecords_extract | iBRC48401265 |
| Ferneydale Avenue | SK07Q | 26/06/2021 | 1 | adult | Wakefield, Rowan | vc57_irecords_extract | iBRC43077817 |
| Blacka Moor | SK28V | 30/05/2021 | 1 | adult | Higginson-Tranter, Dave | vc57_irecords_extract | iBRC20537305 |
| Hathersage | SK28F | 14/08/2020 | 1 | adult | Kydd, Alan | vc57_irecords_extract | iBRC39036072 |
| Findern, Derbyshire, DEAZ | SK33A | 12/06/2020 | 1 | adult | Brian and Jean Hallam | vc57_irecords_extract | iBRC35162623 |
| Allestree, Derby | SK33P | 01/06/2020 | 2 | adult | Plant, Stephen | vc57_irecords_extract | iBRC14001765 |
| Millstone Edge | SK28K | 07/07/2014 | 1 | adult | Watchorn, Andrew | vc57_irecords_extract | iBRC34635385 |
| The Hollies,Holly St,Stapenhill,Burton on Trent | SK22K | 29/08/2013 | 1 | Adult | P. Patrick | vc57_danes_bc_data | LC000334001COUZG |
| Ashover, Derbyshire | SK36L | 25/06/2013 | 1 | adult | Plant, Stephen | vc57_irecords_extract | iBRC12915553 |
| Glebe Rise,Littleover,Derby | SK33H | 23/07/2012 | 1 | Adult | N.J. Ward | vc57_danes_bc_data | LC000334001CP83S |
| Millennium Meadow NR, Duffield | SK34L | 14/07/2012 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001CP7ZW |
| Millennium Meadow NR, Duffield | SK34L | 12/07/2012 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001CP7Z9 |
| Crich Chase meadows,Ambergate | SK35L | 21/05/2011 | 1 | Adult | K.R. Huston | vc57_danes_bc_data | LC000334001COXMT |
| Wood Lane,Newhall,Swadlincote | SK22V | 30/07/2004 | 1 | Adult | Dave Budworth | vc57_danes_bc_data | LC000334001COVOI |
| Blacka Moor | SK28V | 06/07/2003 | 1 | Adult | Housley, P | vc57_irecords_extract | iBRC12211944 |
| Blacka Moor, Dore, Sheffield | SK28V | 06/06/2003 | 1 | Adult | BOTTERILL, Mr R.F., BEAUMONT, Mr H.E., HOUSLEY, Mr | vc57_danes_bc_data | LC000334001COR1N |
| Rowsley Sidings, Rowsley (site not precise) | SK26S | 18/06/1994 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001COVAB |
| Deerlands Rd, Ashgate, Chesterfield | SK37K | 07/06/1993 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001COV93 |
| Clough Wood,Darley Dale | SK26K | 31/05/1989 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001CP0TK |