49.050 BF1020 – Common Grey Tortrix – Cnephasia stephensiana – Doubleday, 1849)
Adult Micro: CAT 4 – Dissection required – 
Leaf-miner: CAT L – The leaf or a Photo required – 
– click for General Verification Guidelines | – click for Specific Verification Guidelines
Leaf-miner: CAT L – The leaf or a Photo required – – click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Generally Common / Widespread 
– Leaf-miner
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.Confusion Species: Cnephasia asseclana (Flax Tortrix); Cnephasia incertana (Light Grey Tortrix); Eana incanana (Bluebell Moth)
ID pointers: Although the largest, it can be confused with other Cnephasia – Has a dark ground colour and dark grey fascia. The large size alone cannot enable it to be identified. Please record as Cnephasia agg. or determine by Gen. Det.
Distribution: A widespread and common species but due to similarities with other Cnephasia species it requires a Gen Det and so this may be a reason for accurate status. One 100% record from 10th July 2022 – Hathersage – Gen Det completed.
General Comment: None Mine Period Additional: The larvae mine the leaves of a huge variety of herbaceous plants
Mine ID Difficulty: Not Recorded
Mine Type/s: Not Recorded
Mine Feeding Method/s: Not Recorded
Mine Comment: None.
*** Last updated on 4 November 2025 by TD ***
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:
Hathersahe (2022) The late Claire Miles©
Image Gallery
No gallery images found for this moth.
Temporal Distribution Chart
Adults: (between 1982 - 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 Cnephasia stephensiana
Found 77 records
↳ from 2026+
↳ 3 from 2020 - 2025
↳ 74 from Before 2020
↳ from 2026+
↳ 3 from 2020 - 2025
↳ 74 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 stephensiana
⚠️ 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:
Cnephasia stephensiana
( data includes both Larvae and Adult Stages )
Monthly Counts By Year:
Cnephasia stephensiana
( data is based on 'Adult' stage records only )
First/Last Recorded Dates: Cnephasia stephensiana
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: Cnephasia stephensiana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Cnephasia stephensiana
AGR: 1.95% | Total % Change: 50%
Hectad (10kmx10km) Coverage: Cnephasia stephensiana
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Cnephasia stephensiana
Cnephasia stephensiana
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
Cnephasia stephensiana
Cnephasia stephensiana
( 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 - Cnephasia stephensiana – 77 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Recorder | Source | RecordKey |
|---|---|---|---|---|---|---|---|
| Allestree, Derby | SK33P | 12/07/2023 | 1 | adult | Plant, Stephen | vc57_irecords_extract | iBRC48387233 |
| Allestree, Derby | SK33P | 10/07/2023 | 2 | adult | Plant, Stephen | vc57_irecords_extract | iBRC48383390 |
| Hathersage, Derbyshire, UK | SK28F | 10/07/2022 | 1 | adult | Miles, Claire | vc57_irecords_extract | iBRC29213205 |
| Pleasley Pit CP, Pleasley | SK46X | 21/07/2019 | 1 | Adult | HILL, Mr B.J.N. | Danes_2019-2021 | 1274 |
| Pleasley Pit CP, Pleasley | SK46X | 05/07/2019 | 1 | Adult | HILL, Mr B.J.N. | Danes_2019-2021 | 1476 |
| The Old Manse, Ault Hucknall, Glapwell | SK46S | 20/07/2013 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001COUUV |
| The Old Manse, Ault Hucknall, Glapwell | SK46S | 19/07/2013 | 2 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001COYOO |
| Ault Hucknall,Glapwell | SK46S | 18/08/2012 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001CP8JQ |
| Ault Hucknall,Glapwell | SK46S | 15/08/2012 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001COYEW |
| Ault Hucknall,Glapwell | SK46S | 10/08/2012 | 2 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001CP8EP |
| Ault Hucknall,Glapwell | SK46S | 08/08/2012 | 2 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001COUJ1 |
| Ault Hucknall,Glapwell | SK46S | 05/08/2012 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001COYCU |
| Ault Hucknall,Glapwell | SK46S | 03/08/2012 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001CP8AQ |
| Midway Rd,Midway,Swadlincote | SK32A | 27/07/2012 | 1 | Adult | M.J. Williams | vc57_danes_bc_data | LC000334001CP88V |
| Chaddesden Wood, Chaddesden, Derby | SK33Z | 27/07/2012 | 2 | Adult | BUDWORTH, Mr D., PATRICK, Mr P., SEWELL, Mr B.G., | vc57_danes_bc_data | LC000334001COUGL |
| Ault Hucknall,Glapwell | SK46S | 26/07/2012 | 2 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001COYAY |
| Ault Hucknall,Glapwell | SK46S | 25/07/2012 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001COUFO |
| Ault Hucknall,Glapwell | SK46S | 24/07/2012 | 3 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001CP85Z |
| Spinney Hill,Melbourne | SK32X | 28/07/2011 | 1 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001COXU7 |
| Ault Hucknall,Glapwell | SK46S | 07/08/2010 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001CP6CT |
| Ault Hucknall,Glapwell | SK46S | 01/08/2010 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001COTJ7 |
| Biggin Dale, nr Hartington | SK15P | 28/07/2010 | 1 | Adult | D. Grundy | vc57_danes_bc_data | LC000334001CP66N |
| Rose Av,Clowne | SK57D | 24/07/2010 | 1 | Adult | D. Hursthouse | vc57_danes_bc_data | LC000334001COXAV |
| Ault Hucknall,Glapwell | SK46S | 11/07/2010 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001COX7O |
| Midway, Derbys. | SK32A | 25/07/2009 | 1 | adult | Williams, Michael | vc57_irecords_extract | iBRC41991088 |
| Midway Rd,Midway,Swadlincote | SK32A | 25/07/2009 | 1 | Adult | M.J. Williams | vc57_danes_bc_data | LC000334001CP4XZ |
| Wood Lane,Newhall,Swadlincote | SK22V | 24/07/2009 | 1 | Adult | Dave Budworth | vc57_danes_bc_data | LC000334001COSV4 |
| Ault Hucknall,Glapwell | SK46S | 24/07/2009 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001CP4XA |
| Ault Hucknall,Glapwell | SK46S | 10/07/2009 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001COWTA |
| Ault Hucknall,Glapwell | SK46S | 03/07/2009 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001CP4VI |
| Ault Hucknall,Glapwell | SK46S | 01/07/2009 | 3 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001CP4U1 |
| Ault Hucknall,Glapwell | SK46S | 30/06/2009 | 3 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001COSSG |
| Ault Hucknall,Glapwell | SK46S | 29/06/2009 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001CP4TN |
| Far Cross,Cavendish Park,Matlock | SK36A | 28/06/2009 | 1 | Adult | B.L. Statham | vc57_danes_bc_data | LC000334001CP4SU |
| Ault Hucknall,Glapwell | SK46S | 27/06/2009 | 1 | Adult | M.E. Bradley | vc57_danes_bc_data | LC000334001COZ9W |
| Bristol Rd,Ilkeston | SK44R | 05/08/2008 | 1 | Adult | S.L.P. Whiteley | vc57_danes_bc_data | LC000334001CP4IL |
| Spinney Hill,Melbourne | SK32X | 25/07/2008 | 1 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001COSL0 |
| Bristol Rd,Ilkeston | SK44R | 21/07/2008 | 1 | Adult | S.L.P. Whiteley | vc57_danes_bc_data | LC000334001CP4DB |
| Midway Rd,Midway,Swadlincote | SK32A | 19/07/2008 | 1 | Adult | M.J. Williams | vc57_danes_bc_data | LC000334001CP4D5 |
| Bristol Rd,Ilkeston | SK44R | 15/07/2008 | 1 | Adult | S.L.P. Whiteley | vc57_danes_bc_data | LC000334001COZ8O |
| Midway Rd,Midway,Swadlincote | SK32A | 12/07/2008 | 1 | Adult | M.J. Williams | vc57_danes_bc_data | LC000334001CP4BI |
| Spinney Hill,Melbourne | SK32X | 22/07/2007 | 1 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001CP3ZB |
| Melbourne, Derbyshire | SK32X | 21/07/2006 | 1 | adult | Davison, Tony | vc57_irecords_extract | iBRC33529481 |
| Spinney Hill,Melbourne | SK32X | 21/07/2006 | 1 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001CP3B0 |
| Spinney Hill,Melbourne | SK32X | 14/07/2006 | 1 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001CP37L |
| Spinney Hill,Melbourne | SK32X | 07/07/2006 | 1 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001COW0Z |
| Main St,Kings Newton,Melbourne | SK32Y | 26/07/2005 | 1 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CP2RV |
| Spinney Hill,Melbourne | SK32X | 22/07/2005 | 1 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001COVV2 |
| Main St,Kings Newton,Melbourne | SK32Y | 21/07/2005 | 2 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001COVUT |
| Main St,Kings Newton,Melbourne | SK32Y | 13/07/2005 | 3 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001COVUC |
| Main St,Kings Newton,Melbourne | SK32Y | 11/07/2005 | 10 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CORK9 |
| Foremark Resr, Ticknall | SK32H | 09/07/2005 | 5 | Adult | A. Davison;N. Topliss;W. Soar | vc57_danes_bc_data | LC000334001CP2MF |
| Spinney Hill,Melbourne | SK32X | 08/07/2005 | 3 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001CP2LV |
| Main St,Kings Newton,Melbourne | SK32Y | 01/07/2005 | 7 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CP2KQ |
| Main St,Kings Newton,Melbourne | SK32Y | 27/06/2005 | 2 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CORIN |
| Main St,Kings Newton,Melbourne | SK32Y | 06/08/2004 | 1 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CORF8 |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 29/07/2004 | 3 | Adult | Topliss, Neil | vc57_danes_bc_data | LC000334001CP272 |
| Main St,Kings Newton,Melbourne | SK32Y | 27/07/2004 | 4 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CP25K |
| Main St,Kings Newton,Melbourne | SK32Y | 25/07/2004 | 1 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CORCC |
| Main St,Kings Newton,Melbourne | SK32Y | 22/07/2004 | 1 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CP22Z |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 19/07/2004 | 1 | Adult | Topliss, Neil | vc57_danes_bc_data | LC000334001CP21C |
| Main St,Kings Newton,Melbourne | SK32Y | 19/07/2004 | 6 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001COZ5P |
| Main St,Kings Newton,Melbourne | SK32Y | 17/07/2004 | 2 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CORAX |
| Midway Rd,Midway,Swadlincote | SK32A | 16/07/2004 | 2 | Adult | M.J. Williams | vc57_danes_bc_data | LC000334001CP1ZF |
| Main St,Kings Newton,Melbourne | SK32Y | 16/07/2004 | 2 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CP206 |
| Spinney Hill,Melbourne | SK32X | 15/07/2004 | 3 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001COVMO |
| Midway Rd,Midway,Swadlincote | SK32A | 14/07/2004 | 1 | Adult | M.J. Williams | vc57_danes_bc_data | LC000334001CP1YD |
| Spinney Hill,Melbourne | SK32X | 13/07/2004 | 1 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001CP1XH |
| Main St,Kings Newton,Melbourne | SK32Y | 13/07/2004 | 3 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CP1Y3 |
| Spinney Hill,Melbourne | SK32X | 11/07/2004 | 3 | Adult | Davison, Tony | vc57_danes_bc_data | LC000334001COVLV |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 10/07/2004 | 1 | Adult | Topliss, Neil | vc57_danes_bc_data | LC000334001CP1WR |
| Main St,Kings Newton,Melbourne | SK32Y | 09/07/2004 | 1 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CP1WH |
| Main St,Kings Newton,Melbourne | SK32Y | 30/06/2004 | 1 | Adult | Soar, Will | vc57_danes_bc_data | LC000334001CP1UU |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 16/06/2004 | 1 | Adult | Topliss, Neil | vc57_danes_bc_data | LC000334001CP1S1 |
| Wood Lane,Newhall,Swadlincote | SK22V | 03/06/2002 | 1 | Adult | Dave Budworth | vc57_danes_bc_data | LC000334001CP1G5 |
| Knighton St, Hepthorne Lane, North Wingfield | SK46C | 15/07/1982 | 5 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001CP9WA |
| Knighton St, Hepthorne Lane, North Wingfield | SK46C | 14/07/1982 | 2 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001COZKW |