15.067 BF345 - Gracillariidae - Lithocolletinae - Phyllonorycter rajella
15.067 BF345  – Common Alder Leaf-miner  – Phyllonorycter rajella  – (Linnaeus, 1758)
Adult Micro:  CAT 2 – Can be confused with other species –       Leaf-miner:  CAT L – The leaf or a Photo required – reared and possibly dissected       Larval Case:  C1 – Distinctive Species –      
PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Blue –  Generally Common / Widespread        purple – Leaf-miner
Taxonomy:   Micro   >>  Gracillariidae  >> Lithocolletinae
Other Name/s: Common Alder Midget
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  < Phyllonorycter strigulatella / Phyllonorycter anderidae >
ID pointers: A variable species, some dark, some pale. There is a broad white basal streak which is obvious. A black apex spot and pale cilia.
Distribution:  Locally common across Derbyshire. Both mine and adult being recorded
General Comment: Notes by Christian Heintzen on image dated 4/11/2025 – on Alder (Alnus glutinosa) > lower surface tentiform mine away from leaf margins (A,B) > elongated mine between two lateral veins with one strong crease (a) on underside > lower epidermis yellow-green > mottled appearance of upper side due to partial removal of palisade parenchyme (b)
Flight Period: May /  August –  On the wing during May & August in two generations Mine Period:  July /  September /  October
Mine Period Additional: Occurs on Alder (Alnus). 
Mine ID Difficulty:  Amber Mine Leaf – Care required in ID process as confusion with similar leaf mines. Quality photos of the mine required.
Mine Type/s:  Blotch
Mine Feeding Method/s:  Leaf Fold
Mine Comment: The larva mine the leaves of Alder. The tentiform mines are quite small forming blotches on the underside of the leaf and away from the leaf margins and within the leaf cells against the midrib. Shows a discoloured, translucent patch, but on the underside there is a strong central crease and often a reddish tinge.    
 – but can be disturbed during the day Photographed: Yes –  Photographed By: Will Soar, Dave Evans, Nikki Mahadevan, Christian Heintzen (leaf mine)  © All Rights Reserved
*** Last updated on 8 December 2025 by TD ***
Wingspan: 7-9mm
Food Plant: Alder
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:  Kings Newton, Derbyshire – Will Soar © / Wyver Lane-Dave Evans© / Shirland – Nikki Mahadevan© / Rowlee Bridge – 4/11/2025 Christian Heintzen©

 
 


Temporal Distribution Chart
Adults: (between 2003 - 2020)  |  Immatures: (between 1983 - 2025)
(click legend below to show/hide datasets)
 

Distribution Map for Phyllonorycter rajella

Found 48 records
    ↳ from 2026+
    ↳ 11 from 2020 - 2025
    ↳ 37 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

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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 – Phyllonorycter rajella

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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.

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Monthly Records By Year: Phyllonorycter rajella
( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Phyllonorycter rajella
( data is based on 'Adult' stage records only )

First/Last Recorded Dates: Phyllonorycter rajella
Adult-only & Anything [Larvae, Pupae, Adult, Mines]

Shading shows moth presence between dates

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Recordings By Year: Phyllonorycter rajella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Phyllonorycter rajella
AGR: 1.7%   |   Total % Change: 50%

Hectad (10kmx10km) Coverage: Phyllonorycter rajella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Phyllonorycter rajella

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
Phyllonorycter rajella
( 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 - Phyllonorycter rajella – 48 records available

Listed by Year - descending - scroll across to see all table columns

Site NameTetradDateCountStageRecorderSourceRecordKey
Longdendale,Woodhead, Birchenbank WoodSK19E07/11/20253Leaf-mineHeintzen, Christianvc57_irecords_extractiBRC47521382
Rowlee Bridge, Woodlands ValleySK18P04/11/20251Leaf-mineHeintzen, Christianvc57_irecords_extractiBRC47521377
Jim Mart Nature ReserveSK36S01/09/20251mineMahadevan, Nikkivc57_irecords_extractiBRC45040640
BelperSK34N29/08/20251mine (empty)Evans, Davevc57_irecords_extractiBRC44899617
Calke ParkSK32R07/10/20231MineFinch, Graham Leonardvc57_irecords_extractiBRC35105513
Calke ParkSK32R01/10/20231MineFinch, Graham Leonardvc57_irecords_extractiBRC35105546
Carver's RocksSK32G30/09/20231MineFinch, Graham Leonardvc57_irecords_extractiBRC35106090
Carver's RocksSK32H21/09/20231MineFinch, Graham Leonardvc57_irecords_extractiBRC35106114
Blacka Moor and PlantationSK28V24/08/20221mine (empty)Watchorn, Andrewvc57_irecords_extractiBRC27927524
Main Street, Kings NewtonSK32Y15/09/20201AdultSoar, Willvc57_irecords_extractiBRC34059820
Main Street, Kings NewtonSK32Y07/08/20201AdultSoar, Willvc57_irecords_extractiBRC34059815
BelSK34U28/05/20191adultEvans, Davevc57_irecords_extractiBRC35346890
Main Street, Kings NewtonSK32Y17/07/20181AdultSoar, Willvc57_irecords_extractiBRC34059821
Jim Mart Nature ReserveSK36S29/10/20161Leaf-mineMahadevan, Nikkivc57_irecords_extractiBRC34908886
Main Street, Kings NewtonSK32Y07/09/20162AdultSoar, Willvc57_irecords_extractiBRC34059822
Millers DaleSK17G03/09/20111Larval MineS.H. Hindvc57_danes_bc_dataLC000334001COU5D
Ashford in the WaterSK16Z22/09/20101Larval MineS.A. Orridge;S.H. Hindvc57_danes_bc_dataLC000334001CP6OX
BamfordSK28B21/09/20101Larval MineK. McCabe;S.H. Hindvc57_danes_bc_dataLC000334001COTPY
Slippery Stones,Upper DerwentSK19S25/08/20101Larval MineS.H. Hindvc57_danes_bc_dataLC000334001COXID
Padley Gorge, Nether PadleySK27P19/08/20101Larval MineS.H. Hindvc57_danes_bc_dataLC000334001CP6HZ
LinacreSK37L13/10/20091Larval MineS.H. Hindvc57_danes_bc_dataLC000334001CP55C
Stoney MiddletonSK27H12/10/20091Larval MineS.H. Hindvc57_danes_bc_dataLC000334001COWZJ
Foremark Resr (sailing club area), TicknallSK32H02/10/20091Larval MineDave Budworthvc57_danes_bc_dataLC000334001CP05W
NorburySK14G01/10/20091Larval MineDave Budworth;S.A. Orridge;S.H. Hindvc57_danes_bc_dataLC000334001COWY1
AshbourneSK14T01/10/20091Larval MineDave Budworth;S.A. Orridge;S.H. Hindvc57_danes_bc_dataLC000334001COWYG
Tissington Trail, AshbourneSK14T01/10/20091Larval MineDave Budworth;S.A. Orridge;S.H. Hindvc57_danes_bc_dataLC000334001COWYW
CastletonSK18L10/09/20091Larval MineS.H. Hindvc57_danes_bc_dataLC000334001COWX4
Broomfield Hall, Morley, DerbySK34V08/11/20081Larval MineS.H. Hindvc57_danes_bc_dataLC000334001COZZI
Calke ParkSK32L25/10/20081MineFinch, Graham Leonardvc57_irecords_extractiBRC35105486
Calke Park,TicknallSK32R25/10/20081Larval MineVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001COSON
Staunton Harold res (nr boat house), MelbourneSK32S06/11/20071Larval MineDave Budworthvc57_danes_bc_dataLC000334001COZW8
Carvers Rocks (new plantation),Hartshorne,SwadlincoteSK32G02/11/20071Larval MineDave Budworthvc57_danes_bc_dataLC000334001COZW2
Dovedale (entrance cattle grid), AshbourneSK15K31/10/20071Larval MineDave Budworth;W. Soarvc57_danes_bc_dataLC000334001COSGZ
New plantation, Carvers Rocks areaSK32G21/10/20071Larval MineDave Budworthvc57_danes_bc_dataLC000334001COSGP
nr Brookdale Farm, Repton, DerbysSK32H09/09/20071Larval MineDave Budworthvc57_danes_bc_dataLC000334001CP454
Mousley Bottom, New MillsSJ98X03/09/20071Larval MineS.H. Hindvc57_danes_bc_dataLC000334001CP44T
Shallcross Wood, Goyt Valley, Whaley BridgeSK07E26/09/20061Larval MineS.H. Hindvc57_danes_bc_dataLC000334001CP9YO
Carr Vale NR,BolsoverSK46P13/09/20061Larval MineS.H. Hindvc57_danes_bc_dataLC000334001COW8N
Ogston Carr Wood,nr Ogston ResSK35U12/07/20061Larval MineS.H. Hindvc57_danes_bc_dataLC000334001CORSK
Clattercotes Wood, nr Ogston ResrSK36K12/07/20061Larval MineS.H. Hindvc57_danes_bc_dataLC000334001CP368
Main St,Kings Newton,MelbourneSK32Y02/10/20031AdultSoar, Willvc57_danes_bc_dataLC000334001COVIY
Main Street, Kings NewtonSK32Y16/09/20031AdultSoar, Willvc57_irecords_extractiBRC34679900
Main St,Kings Newton,MelbourneSK32Y16/09/20031AdultSoar, Willvc57_danes_bc_dataLC000334001CP1MU
Melbourne, DerbyshireSK32X12/09/20031adultDavison, Tonyvc57_irecords_extractiBRC33100014
Hillclifflane, nr IdridgehaySK24Y02/11/20021Larval MineS.H. Hindvc57_danes_bc_dataLC000334001CP1HB
Brackley Gate, nr CoxbenchSK34W03/11/20011Larval MineS.H. Hindvc57_danes_bc_dataLC000334001COR0E
Abbotsholme School, RocesterSK13E04/10/20011Larval MineS.H. Hindvc57_danes_bc_dataLC000334001COVH0
Rowsley Sidings, RowsleySK26S12/11/19831Larval MineVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001COQEP

 
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