15.067 BF345  –  Gracillariidae –  Lithocolletinae – Phyllonorycter rajella – Common Alder Leaf-miner – (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©

 
 


 

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

⚠️ 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.

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
( data includes Adult Stage only )

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 NameTetradDateCountStageSource
Longdendale,Woodhead, Birchenbank WoodSK19E07/11/20253Leaf-minevc57_irecords_extract
Rowlee Bridge, Woodlands ValleySK18P04/11/20251Leaf-minevc57_irecords_extract
Jim Mart Nature ReserveSK36S01/09/20251minevc57_irecords_extract
BelperSK34N29/08/20251mine (empty)vc57_irecords_extract
Calke ParkSK32R07/10/20231Minevc57_irecords_extract
Calke ParkSK32R01/10/20231Minevc57_irecords_extract
Carver's RocksSK32G30/09/20231Minevc57_irecords_extract
Carver's RocksSK32H21/09/20231Minevc57_irecords_extract
Blacka Moor and PlantationSK28V24/08/20221mine (empty)vc57_irecords_extract
Main Street, Kings NewtonSK32Y15/09/20201Adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y07/08/20201Adultvc57_irecords_extract
BelSK34U28/05/20191adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y17/07/20181Adultvc57_irecords_extract
Jim Mart Nature ReserveSK36S29/10/20161Leaf-minevc57_irecords_extract
Main Street, Kings NewtonSK32Y07/09/20162Adultvc57_irecords_extract
Millers DaleSK17G03/09/20111Larval Minevc57_danes_bc_data
Ashford in the WaterSK16Z22/09/20101Larval Minevc57_danes_bc_data
BamfordSK28B21/09/20101Larval Minevc57_danes_bc_data
Slippery Stones,Upper DerwentSK19S25/08/20101Larval Minevc57_danes_bc_data
Padley Gorge, Nether PadleySK27P19/08/20101Larval Minevc57_danes_bc_data
LinacreSK37L13/10/20091Larval Minevc57_danes_bc_data
Stoney MiddletonSK27H12/10/20091Larval Minevc57_danes_bc_data
Foremark Resr (sailing club area), TicknallSK32H02/10/20091Larval Minevc57_danes_bc_data
NorburySK14G01/10/20091Larval Minevc57_danes_bc_data
AshbourneSK14T01/10/20091Larval Minevc57_danes_bc_data
Tissington Trail, AshbourneSK14T01/10/20091Larval Minevc57_danes_bc_data
CastletonSK18L10/09/20091Larval Minevc57_danes_bc_data
Broomfield Hall, Morley, DerbySK34V08/11/20081Larval Minevc57_danes_bc_data
Calke ParkSK32L25/10/20081Minevc57_irecords_extract
Calke Park,TicknallSK32R25/10/20081Larval Minevc57_danes_bc_data
Staunton Harold res (nr boat house), MelbourneSK32S06/11/20071Larval Minevc57_danes_bc_data
Carvers Rocks (new plantation),Hartshorne,SwadlincoteSK32G02/11/20071Larval Minevc57_danes_bc_data
Dovedale (entrance cattle grid), AshbourneSK15K31/10/20071Larval Minevc57_danes_bc_data
New plantation, Carvers Rocks areaSK32G21/10/20071Larval Minevc57_danes_bc_data
nr Brookdale Farm, Repton, DerbysSK32H09/09/20071Larval Minevc57_danes_bc_data
Mousley Bottom, New MillsSJ98X03/09/20071Larval Minevc57_danes_bc_data
Shallcross Wood, Goyt Valley, Whaley BridgeSK07E26/09/20061Larval Minevc57_danes_bc_data
Carr Vale NR,BolsoverSK46P13/09/20061Larval Minevc57_danes_bc_data
Ogston Carr Wood,nr Ogston ResSK35U12/07/20061Larval Minevc57_danes_bc_data
Clattercotes Wood, nr Ogston ResrSK36K12/07/20061Larval Minevc57_danes_bc_data
Main St,Kings Newton,MelbourneSK32Y02/10/20031Adultvc57_danes_bc_data
Main Street, Kings NewtonSK32Y16/09/20031Adultvc57_irecords_extract
Main St,Kings Newton,MelbourneSK32Y16/09/20031Adultvc57_danes_bc_data
Melbourne, DerbyshireSK32X12/09/20031adultvc57_irecords_extract
Hillclifflane, nr IdridgehaySK24Y02/11/20021Larval Minevc57_danes_bc_data
Brackley Gate, nr CoxbenchSK34W03/11/20011Larval Minevc57_danes_bc_data
Abbotsholme School, RocesterSK13E04/10/20011Larval Minevc57_danes_bc_data
Rowsley Sidings, RowsleySK26S12/11/19831Larval Minevc57_danes_bc_data

 
Scroll to Top