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)
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 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

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 – 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.

Visit NBN Site


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

Click the colour discs below to Select/De-select as Required

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 Name Tetrad Date Count Stage Recorder Source RecordKey
Longdendale,Woodhead, Birchenbank Wood SK19E 07/11/2025 3 Leaf-mine Heintzen, Christian vc57_irecords_extract iBRC47521382
Rowlee Bridge, Woodlands Valley SK18P 04/11/2025 1 Leaf-mine Heintzen, Christian vc57_irecords_extract iBRC47521377
Jim Mart Nature Reserve SK36S 01/09/2025 1 mine Mahadevan, Nikki vc57_irecords_extract iBRC45040640
Belper SK34N 29/08/2025 1 mine (empty) Evans, Dave vc57_irecords_extract iBRC44899617
Calke Park SK32R 07/10/2023 1 Mine Finch, Graham Leonard vc57_irecords_extract iBRC35105513
Calke Park SK32R 01/10/2023 1 Mine Finch, Graham Leonard vc57_irecords_extract iBRC35105546
Carver's Rocks SK32G 30/09/2023 1 Mine Finch, Graham Leonard vc57_irecords_extract iBRC35106090
Carver's Rocks SK32H 21/09/2023 1 Mine Finch, Graham Leonard vc57_irecords_extract iBRC35106114
Blacka Moor and Plantation SK28V 24/08/2022 1 mine (empty) Watchorn, Andrew vc57_irecords_extract iBRC27927524
Main Street, Kings Newton SK32Y 15/09/2020 1 Adult Soar, Will vc57_irecords_extract iBRC34059820
Main Street, Kings Newton SK32Y 07/08/2020 1 Adult Soar, Will vc57_irecords_extract iBRC34059815
Bel SK34U 28/05/2019 1 adult Evans, Dave vc57_irecords_extract iBRC35346890
Main Street, Kings Newton SK32Y 17/07/2018 1 Adult Soar, Will vc57_irecords_extract iBRC34059821
Jim Mart Nature Reserve SK36S 29/10/2016 1 Leaf-mine Mahadevan, Nikki vc57_irecords_extract iBRC34908886
Main Street, Kings Newton SK32Y 07/09/2016 2 Adult Soar, Will vc57_irecords_extract iBRC34059822
Millers Dale SK17G 03/09/2011 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COU5D
Ashford in the Water SK16Z 22/09/2010 1 Larval Mine S.A. Orridge;S.H. Hind vc57_danes_bc_data LC000334001CP6OX
Bamford SK28B 21/09/2010 1 Larval Mine K. McCabe;S.H. Hind vc57_danes_bc_data LC000334001COTPY
Slippery Stones,Upper Derwent SK19S 25/08/2010 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COXID
Padley Gorge, Nether Padley SK27P 19/08/2010 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP6HZ
Linacre SK37L 13/10/2009 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP55C
Stoney Middleton SK27H 12/10/2009 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COWZJ
Foremark Resr (sailing club area), Ticknall SK32H 02/10/2009 1 Larval Mine Dave Budworth vc57_danes_bc_data LC000334001CP05W
Norbury SK14G 01/10/2009 1 Larval Mine Dave Budworth;S.A. Orridge;S.H. Hind vc57_danes_bc_data LC000334001COWY1
Ashbourne SK14T 01/10/2009 1 Larval Mine Dave Budworth;S.A. Orridge;S.H. Hind vc57_danes_bc_data LC000334001COWYG
Tissington Trail, Ashbourne SK14T 01/10/2009 1 Larval Mine Dave Budworth;S.A. Orridge;S.H. Hind vc57_danes_bc_data LC000334001COWYW
Castleton SK18L 10/09/2009 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COWX4
Broomfield Hall, Morley, Derby SK34V 08/11/2008 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COZZI
Calke Park SK32L 25/10/2008 1 Mine Finch, Graham Leonard vc57_irecords_extract iBRC35105486
Calke Park,Ticknall SK32R 25/10/2008 1 Larval Mine VC57 Derbyshire Recorder vc57_danes_bc_data LC000334001COSON
Staunton Harold res (nr boat house), Melbourne SK32S 06/11/2007 1 Larval Mine Dave Budworth vc57_danes_bc_data LC000334001COZW8
Carvers Rocks (new plantation),Hartshorne,Swadlincote SK32G 02/11/2007 1 Larval Mine Dave Budworth vc57_danes_bc_data LC000334001COZW2
Dovedale (entrance cattle grid), Ashbourne SK15K 31/10/2007 1 Larval Mine Dave Budworth;W. Soar vc57_danes_bc_data LC000334001COSGZ
New plantation, Carvers Rocks area SK32G 21/10/2007 1 Larval Mine Dave Budworth vc57_danes_bc_data LC000334001COSGP
nr Brookdale Farm, Repton, Derbys SK32H 09/09/2007 1 Larval Mine Dave Budworth vc57_danes_bc_data LC000334001CP454
Mousley Bottom, New Mills SJ98X 03/09/2007 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP44T
Shallcross Wood, Goyt Valley, Whaley Bridge SK07E 26/09/2006 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP9YO
Carr Vale NR,Bolsover SK46P 13/09/2006 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COW8N
Ogston Carr Wood,nr Ogston Res SK35U 12/07/2006 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CORSK
Clattercotes Wood, nr Ogston Resr SK36K 12/07/2006 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP368
Main St,Kings Newton,Melbourne SK32Y 02/10/2003 1 Adult Soar, Will vc57_danes_bc_data LC000334001COVIY
Main Street, Kings Newton SK32Y 16/09/2003 1 Adult Soar, Will vc57_irecords_extract iBRC34679900
Main St,Kings Newton,Melbourne SK32Y 16/09/2003 1 Adult Soar, Will vc57_danes_bc_data LC000334001CP1MU
Melbourne, Derbyshire SK32X 12/09/2003 1 adult Davison, Tony vc57_irecords_extract iBRC33100014
Hillclifflane, nr Idridgehay SK24Y 02/11/2002 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP1HB
Brackley Gate, nr Coxbench SK34W 03/11/2001 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COR0E
Abbotsholme School, Rocester SK13E 04/10/2001 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COVH0
Rowsley Sidings, Rowsley SK26S 12/11/1983 1 Larval Mine VC57 Derbyshire Recorder vc57_danes_bc_data LC000334001COQEP

 
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