49.049 BF1024 – Light Grey Tortrix – Cnephasia incertana – (Treitschke, 1835)
Adult Micro: CAT 4 – Dissection required – 
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
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 
– Generally Common / Widespread
– care required in the identification process, as confusion with similar species is likely – quality photographs required. Confusion Species: Cnephasia stephensiana (Common Grey Tortrix); Cnephasia asseclana (Flax Tortrix)
ID pointers: One of the smallest Cnephasia species, often showing weaker forewing markings than similar sized Flax Tortrix Cnephasia asseclana
Distribution: Plenty of records from DaNES between 2003 -2012 (35) numerous gen det records; Harrison & Sterling state that the moth was common and widely distributed on low ground and in the dales
iRecord shows a Gen Det record from Hathersage 29/6/2021
General Comment: None iRecord shows a Gen Det record from Hathersage 29/6/2021
*** Last updated on 3 January 2026 by RP ***
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:
Hathersage (2021) The late Claire Miles
Image Gallery
No gallery images found for this moth.
Temporal Distribution Chart
Adults: (between 1905 - 2021)
(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 Cnephasia incertana
Found 36 records
↳ from 2026+
↳ 1 from 2020 - 2025
↳ 35 from Before 2020
↳ from 2026+
↳ 1 from 2020 - 2025
↳ 35 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 – Cnephasia incertana
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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:
Cnephasia incertana
( data includes both Larvae and Adult Stages )
Monthly Counts By Year:
Cnephasia incertana
( data is based on 'Adult' stage records only )
First/Last Recorded Dates: Cnephasia incertana
Adult-only & Anything [Larvae, Pupae, Adult, Mines]
Shading shows moth presence between dates
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Recordings By Year: Cnephasia incertana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Cnephasia incertana
AGR: -2.23% | Total % Change: -33.3%
Hectad (10kmx10km) Coverage: Cnephasia incertana
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Cnephasia incertana
Cnephasia incertana
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 - Cnephasia incertana – 36 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Recorder | Source | RecordKey |
|---|---|---|---|---|---|---|---|
| Hathersage, Derbyshire, UK | SK28F | 29/06/2021 | 1 | adult | Miles, Claire | vc57_irecords_extract | iBRC29656563 |
| Bamford St,Ripley | SK34Z | 19/06/2012 | 1 | Adult | Thorpe, Steve | vc57_danes_bc_data | LC000334001COU9C |
| Flash Lane,Beeley Moor | SK26X | 09/06/2011 | 1 | Adult | A. Butler | vc57_danes_bc_data | LC000334001CP6YM |
| Newboundmill Lane,Pleasley | SK56C | 26/07/2008 | 1 | Adult | B. Elliott;C. Stubbs | vc57_danes_bc_data | LC000334001CP4GW |
| Spinney Hill,Melbourne | SK32X | 21/07/2006 | 1 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001CP3AZ |
| Main St,Kings Newton,Melbourne | SK32Y | 29/07/2005 | 3 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CP2SJ |
| Main St,Kings Newton,Melbourne | SK32Y | 26/07/2005 | 1 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CP2RU |
| Main St,Kings Newton,Melbourne | SK32Y | 21/07/2005 | 1 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001COVUS |
| Main St,Kings Newton,Melbourne | SK32Y | 13/07/2005 | 10 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001COVUB |
| Main St,Kings Newton,Melbourne | SK32Y | 11/07/2005 | 5 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CORK8 |
| Foremark Resr, Ticknall | SK32H | 09/07/2005 | 5 | Adult | A. Davison;N. Topliss;W. Soar | vc57_danes_bc_data | LC000334001CP2ME |
| Main St,Kings Newton,Melbourne | SK32Y | 06/08/2004 | 5 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CORF7 |
| Main St,Kings Newton,Melbourne | SK32Y | 04/08/2004 | 3 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001COVPC |
| Spinney Hill,Melbourne | SK32X | 30/07/2004 | 1 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001CP285 |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 29/07/2004 | 2 | Adult | Topliss, Neil | vc57_danes_bc_data | LC000334001CP271 |
| Burnaston (Toyota Plant NR), Derby | SK23V | 28/07/2004 | 1 | Adult | A. Davison;P. Precey;W. Soar | vc57_danes_bc_data | LC000334001CP262 |
| Main St,Kings Newton,Melbourne | SK32Y | 27/07/2004 | 7 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CP25J |
| Main St,Kings Newton,Melbourne | SK32Y | 25/07/2004 | 4 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CORCB |
| Spinney Hill,Melbourne | SK32X | 24/07/2004 | 3 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001CP24M |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 21/07/2004 | 2 | Adult | Topliss, Neil | vc57_danes_bc_data | LC000334001CP21W |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 19/07/2004 | 2 | Adult | Topliss, Neil | vc57_danes_bc_data | LC000334001CP21B |
| Main St,Kings Newton,Melbourne | SK32Y | 19/07/2004 | 11 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001COZ5O |
| Main St,Kings Newton,Melbourne | SK32Y | 17/07/2004 | 10 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CORAW |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 13/07/2004 | 1 | Adult | Topliss, Neil | vc57_danes_bc_data | LC000334001COVMJ |
| Main St,Kings Newton,Melbourne | SK32Y | 13/07/2004 | 8 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CP1Y2 |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 06/07/2004 | 3 | Adult | Topliss, Neil | vc57_danes_bc_data | LC000334001COR8X |
| Main St,Kings Newton,Melbourne | SK32Y | 30/06/2004 | 1 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001COVLO |
| Main St,Kings Newton,Melbourne | SK32Y | 29/06/2004 | 1 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001COVKU |
| Foremark Resr, Ticknall | SK32H | 25/06/2004 | 3 | Adult | A. Davison;N. Topliss;W. Soar | vc57_danes_bc_data | LC000334001CP1T2 |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 16/06/2004 | 1 | Adult | Topliss, Neil | vc57_danes_bc_data | LC000334001CP1S0 |
| Spinney Hill,Melbourne | SK32X | 14/06/2004 | 1 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001COR73 |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 11/06/2004 | 1 | Adult | Topliss, Neil | vc57_danes_bc_data | LC000334001COZ3Y |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 09/06/2004 | 1 | Adult | Topliss, Neil | vc57_danes_bc_data | LC000334001COZ3B |
| Main St,Kings Newton,Melbourne | SK32Y | 22/08/2003 | 1 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CP9XL |
| Stoney Middleton | SK27H | 14/06/2003 | 2 | Adult | P. Hampson | vc57_danes_bc_data | LC000334001COZOD |
| Parkway, New Mills | SK08D | 15/06/1905 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001COQHH |