Cnephasia incertana       Cnephasia asseclana
49.050 BF1020  – Common Grey Tortrix – Cnephasia stephensiana – Doubleday, 1849) Adult Micro:  CAT 4 – Dissection required – Gen-Det-Reqd       Leaf-miner:  CAT L – The leaf or a Photo required – reared and possibly dissected       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Blue –  Generally Common / Widespread        purple – Leaf-miner
Taxonomy:   Micro   >>  Tortricidae  >> Tortricinae
Other Name/s: Grey Tortrix
ID Difficulty:  Red – 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 Flight Period: July /  August –  One generation July – August Mine Period:  January /  February /  March /  April /  May /  September /  October /  November /  December
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. Moth Activity: Crepuscular   – active from dusk and attracted to light Photographed: Yes –  Photographed By: The late Claire Miles (Gen Det)  © All Rights Reserved
*** Last updated on 4 November 2025 by TD ***
Wingspan: 18-22mm
 Food Plant: A huge variety of herbaceous plants
Specific Recorded History Dates for Common [Blue code 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©

Cnephasia stephensiana - 10th July 2022 - Hathersage - The late Claire Miles
Cnephasia stephensiana – 10th July 2022 – Hathersage – The late Claire Miles
Cnephasia stephensiana - 10th July 2022 - Hathersage - The late Claire Miles - Gen Det
Cnephasia stephensiana – 10th July 2022 – Hathersage – The late Claire Miles – Gen Det
Cnephasia stephensiana - 10th July 2022 - Hathersage - The late Claire Miles
Cnephasia stephensiana - 10th July 2022 - Hathersage - The late Claire Miles - Gen Det


Image Gallery

No gallery images found for this moth.


Monthly Occurrence For Years Below
Adults: (between 1982 - 2023)
(click legend below to show/hide datasets)

Distribution Map for Cnephasia stephensiana

Found 77 records
    ↳ from 2026+
    ↳ 3 from 2020 - 2025
    ↳ 74 from Before 2020
Flying
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Mining
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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 – Cnephasia stephensiana

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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.

Visit NBN Site


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

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
( 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 NameTetradDateCountStageRecorderSourceRecordKey
Allestree, DerbySK33P12/07/20231adultPlant, Stephenvc57_irecords_extractiBRC48387233
Allestree, DerbySK33P10/07/20232adultPlant, Stephenvc57_irecords_extractiBRC48383390
Hathersage, Derbyshire, UKSK28F10/07/20221adultMiles, Clairevc57_irecords_extractiBRC29213205
Pleasley Pit CP, PleasleySK46X21/07/20191AdultHILL, Mr B.J.N.Danes_2019-20211274
Pleasley Pit CP, PleasleySK46X05/07/20191AdultHILL, Mr B.J.N.Danes_2019-20211476
The Old Manse, Ault Hucknall, GlapwellSK46S20/07/20131AdultM.E. Bradleyvc57_danes_bc_dataLC000334001COUUV
The Old Manse, Ault Hucknall, GlapwellSK46S19/07/20132AdultM.E. Bradleyvc57_danes_bc_dataLC000334001COYOO
Ault Hucknall,GlapwellSK46S18/08/20121AdultM.E. Bradleyvc57_danes_bc_dataLC000334001CP8JQ
Ault Hucknall,GlapwellSK46S15/08/20121AdultM.E. Bradleyvc57_danes_bc_dataLC000334001COYEW
Ault Hucknall,GlapwellSK46S10/08/20122AdultM.E. Bradleyvc57_danes_bc_dataLC000334001CP8EP
Ault Hucknall,GlapwellSK46S08/08/20122AdultM.E. Bradleyvc57_danes_bc_dataLC000334001COUJ1
Ault Hucknall,GlapwellSK46S05/08/20121AdultM.E. Bradleyvc57_danes_bc_dataLC000334001COYCU
Ault Hucknall,GlapwellSK46S03/08/20121AdultM.E. Bradleyvc57_danes_bc_dataLC000334001CP8AQ
Chaddesden Wood, Chaddesden, DerbySK33Z27/07/20122AdultBUDWORTH, Mr D., PATRICK, Mr P., SEWELL, Mr B.G., vc57_danes_bc_dataLC000334001COUGL
Midway Rd,Midway,SwadlincoteSK32A27/07/20121AdultM.J. Williamsvc57_danes_bc_dataLC000334001CP88V
Ault Hucknall,GlapwellSK46S26/07/20122AdultM.E. Bradleyvc57_danes_bc_dataLC000334001COYAY
Ault Hucknall,GlapwellSK46S25/07/20121AdultM.E. Bradleyvc57_danes_bc_dataLC000334001COUFO
Ault Hucknall,GlapwellSK46S24/07/20123AdultM.E. Bradleyvc57_danes_bc_dataLC000334001CP85Z
Spinney Hill,MelbourneSK32X28/07/20111AdultDavison, Tonyvc57_danes_bc_dataLC000334001COXU7
Ault Hucknall,GlapwellSK46S07/08/20101AdultM.E. Bradleyvc57_danes_bc_dataLC000334001CP6CT
Ault Hucknall,GlapwellSK46S01/08/20101AdultM.E. Bradleyvc57_danes_bc_dataLC000334001COTJ7
Biggin Dale, nr HartingtonSK15P28/07/20101AdultD. Grundyvc57_danes_bc_dataLC000334001CP66N
Rose Av,ClowneSK57D24/07/20101AdultD. Hursthousevc57_danes_bc_dataLC000334001COXAV
Ault Hucknall,GlapwellSK46S11/07/20101AdultM.E. Bradleyvc57_danes_bc_dataLC000334001COX7O
Midway, Derbys.SK32A25/07/20091adultWilliams, Michaelvc57_irecords_extractiBRC41991088
Midway Rd,Midway,SwadlincoteSK32A25/07/20091AdultM.J. Williamsvc57_danes_bc_dataLC000334001CP4XZ
Wood Lane,Newhall,SwadlincoteSK22V24/07/20091AdultDave Budworthvc57_danes_bc_dataLC000334001COSV4
Ault Hucknall,GlapwellSK46S24/07/20091AdultM.E. Bradleyvc57_danes_bc_dataLC000334001CP4XA
Ault Hucknall,GlapwellSK46S10/07/20091AdultM.E. Bradleyvc57_danes_bc_dataLC000334001COWTA
Ault Hucknall,GlapwellSK46S03/07/20091AdultM.E. Bradleyvc57_danes_bc_dataLC000334001CP4VI
Ault Hucknall,GlapwellSK46S01/07/20093AdultM.E. Bradleyvc57_danes_bc_dataLC000334001CP4U1
Ault Hucknall,GlapwellSK46S30/06/20093AdultM.E. Bradleyvc57_danes_bc_dataLC000334001COSSG
Ault Hucknall,GlapwellSK46S29/06/20091AdultM.E. Bradleyvc57_danes_bc_dataLC000334001CP4TN
Far Cross,Cavendish Park,MatlockSK36A28/06/20091AdultB.L. Stathamvc57_danes_bc_dataLC000334001CP4SU
Ault Hucknall,GlapwellSK46S27/06/20091AdultM.E. Bradleyvc57_danes_bc_dataLC000334001COZ9W
Bristol Rd,IlkestonSK44R05/08/20081AdultS.L.P. Whiteleyvc57_danes_bc_dataLC000334001CP4IL
Spinney Hill,MelbourneSK32X25/07/20081AdultDavison, Tonyvc57_danes_bc_dataLC000334001COSL0
Bristol Rd,IlkestonSK44R21/07/20081AdultS.L.P. Whiteleyvc57_danes_bc_dataLC000334001CP4DB
Midway Rd,Midway,SwadlincoteSK32A19/07/20081AdultM.J. Williamsvc57_danes_bc_dataLC000334001CP4D5
Bristol Rd,IlkestonSK44R15/07/20081AdultS.L.P. Whiteleyvc57_danes_bc_dataLC000334001COZ8O
Midway Rd,Midway,SwadlincoteSK32A12/07/20081AdultM.J. Williamsvc57_danes_bc_dataLC000334001CP4BI
Spinney Hill,MelbourneSK32X22/07/20071AdultDavison, Tonyvc57_danes_bc_dataLC000334001CP3ZB
Melbourne, DerbyshireSK32X21/07/20061adultDavison, Tonyvc57_irecords_extractiBRC33529481
Spinney Hill,MelbourneSK32X21/07/20061AdultDavison, Tonyvc57_danes_bc_dataLC000334001CP3B0
Spinney Hill,MelbourneSK32X14/07/20061AdultDavison, Tonyvc57_danes_bc_dataLC000334001CP37L
Spinney Hill,MelbourneSK32X07/07/20061AdultDavison, Tonyvc57_danes_bc_dataLC000334001COW0Z
Main St,Kings Newton,MelbourneSK32Y26/07/20051AdultSoar, Willvc57_danes_bc_dataLC000334001CP2RV
Spinney Hill,MelbourneSK32X22/07/20051AdultDavison, Tonyvc57_danes_bc_dataLC000334001COVV2
Main St,Kings Newton,MelbourneSK32Y21/07/20052AdultSoar, Willvc57_danes_bc_dataLC000334001COVUT
Main St,Kings Newton,MelbourneSK32Y13/07/20053AdultSoar, Willvc57_danes_bc_dataLC000334001COVUC
Main St,Kings Newton,MelbourneSK32Y11/07/200510AdultSoar, Willvc57_danes_bc_dataLC000334001CORK9
Foremark Resr, TicknallSK32H09/07/20055AdultA. Davison;N. Topliss;W. Soarvc57_danes_bc_dataLC000334001CP2MF
Spinney Hill,MelbourneSK32X08/07/20053AdultDavison, Tonyvc57_danes_bc_dataLC000334001CP2LV
Main St,Kings Newton,MelbourneSK32Y01/07/20057AdultSoar, Willvc57_danes_bc_dataLC000334001CP2KQ
Main St,Kings Newton,MelbourneSK32Y27/06/20052AdultSoar, Willvc57_danes_bc_dataLC000334001CORIN
Main St,Kings Newton,MelbourneSK32Y06/08/20041AdultSoar, Willvc57_danes_bc_dataLC000334001CORF8
Edgecote Drive,Newhall,SwadlincoteSK22V29/07/20043AdultTopliss, Neilvc57_danes_bc_dataLC000334001CP272
Main St,Kings Newton,MelbourneSK32Y27/07/20044AdultSoar, Willvc57_danes_bc_dataLC000334001CP25K
Main St,Kings Newton,MelbourneSK32Y25/07/20041AdultSoar, Willvc57_danes_bc_dataLC000334001CORCC
Main St,Kings Newton,MelbourneSK32Y22/07/20041AdultSoar, Willvc57_danes_bc_dataLC000334001CP22Z
Main St,Kings Newton,MelbourneSK32Y19/07/20046AdultSoar, Willvc57_danes_bc_dataLC000334001COZ5P
Edgecote Drive,Newhall,SwadlincoteSK22V19/07/20041AdultTopliss, Neilvc57_danes_bc_dataLC000334001CP21C
Main St,Kings Newton,MelbourneSK32Y17/07/20042AdultSoar, Willvc57_danes_bc_dataLC000334001CORAX
Midway Rd,Midway,SwadlincoteSK32A16/07/20042AdultM.J. Williamsvc57_danes_bc_dataLC000334001CP1ZF
Main St,Kings Newton,MelbourneSK32Y16/07/20042AdultSoar, Willvc57_danes_bc_dataLC000334001CP206
Spinney Hill,MelbourneSK32X15/07/20043AdultDavison, Tonyvc57_danes_bc_dataLC000334001COVMO
Midway Rd,Midway,SwadlincoteSK32A14/07/20041AdultM.J. Williamsvc57_danes_bc_dataLC000334001CP1YD
Spinney Hill,MelbourneSK32X13/07/20041AdultDavison, Tonyvc57_danes_bc_dataLC000334001CP1XH
Main St,Kings Newton,MelbourneSK32Y13/07/20043AdultSoar, Willvc57_danes_bc_dataLC000334001CP1Y3
Spinney Hill,MelbourneSK32X11/07/20043AdultDavison, Tonyvc57_danes_bc_dataLC000334001COVLV
Edgecote Drive,Newhall,SwadlincoteSK22V10/07/20041AdultTopliss, Neilvc57_danes_bc_dataLC000334001CP1WR
Main St,Kings Newton,MelbourneSK32Y09/07/20041AdultSoar, Willvc57_danes_bc_dataLC000334001CP1WH
Main St,Kings Newton,MelbourneSK32Y30/06/20041AdultSoar, Willvc57_danes_bc_dataLC000334001CP1UU
Edgecote Drive,Newhall,SwadlincoteSK22V16/06/20041AdultTopliss, Neilvc57_danes_bc_dataLC000334001CP1S1
Wood Lane,Newhall,SwadlincoteSK22V03/06/20021AdultDave Budworthvc57_danes_bc_dataLC000334001CP1G5
Knighton St, Hepthorne Lane, North WingfieldSK46C15/07/19825AdultVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001CP9WA
Knighton St, Hepthorne Lane, North WingfieldSK46C14/07/19822AdultVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001COZKW

Cnephasia incertana       Cnephasia asseclana

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