4.003 BF117 - Nepticulidae - Nepticulinae - Stigmella confusella
4.003 BF117  – Pale Birch Dot  – Stigmella confusella  – (Wood, 1894)
Adult Micro:  CAT 4 – Dissection required – Gen-Det-Reqd       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   >>  Nepticulidae  >> Nepticulinae
Other Name/s: Pale Birch Pigmy
ID Difficulty:  Red – difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.
ID pointers:  The adult moth has a yellowish brown-grey forewing with ill-defined whitish fascia beyond the middle. The head tuft is light ochreous or yellow.
Distribution:  National Status – Widely distributed – Derbyshire status unknown, but likely to be a common and widespread leaf mine species. Adults rarely seen
General Comment: None
Flight Period: May –  May. Single generation Mine Period:  June /  July /  August
Mine Period Additional: Leaf-mines can be discovered from June into August .
Mine ID Difficulty:  Green Mine Leaf – Easy to identify, generally the leaf mine is distinctive and unlikely to be confused with other species.
Mine Type/s:  Gallery
Mine Feeding Method/s: Not Recorded
Mine Comment: The mine is a long, slender, often angular and distinctive gallery, created on the underside of the leaf. The frass forms  a black central line, which is continuous, narrow and black running down the centre of the mine for its entire length. The mines are found on Betula (Birch). The mine of S.confusella differs from the similar species S.lapponica where the early part of the mine is filled with green, cloudy frass.  
 – but can be disturbed during the day Photographed: Yes –  Photographed By: Dave Evans, Steve Orridge   © All Rights Reserved
*** Last updated on 21 November 2025 by TD ***
Wingspan: 5-6mm
Food Plant: Birch
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:  Dave Evans – September 2024 &  September 2018 – Wyver Lane, Belper. / Steve Orridge©

 
 


Temporal Distribution Chart
Immatures: (between 2001 - 2025)
(click legend below to show/hide datasets)

Distribution Map for Stigmella confusella

Found 23 records
    ↳ from 2026+
    ↳ 8 from 2020 - 2025
    ↳ 15 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 – Stigmella confusella

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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: Stigmella confusella
( data includes both Larvae and Adult Stages )

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

First/Last Recorded Dates: Stigmella confusella
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: Stigmella confusella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Stigmella confusella
AGR: 4.38%   |   Total % Change: 180%

Hectad (10kmx10km) Coverage: Stigmella confusella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Stigmella confusella

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
Stigmella confusella
( 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 - Stigmella confusella – 23 records available

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

Site Name Tetrad Date Count Stage Recorder Source RecordKey
Darwin Forest SK36C 06/10/2025 1 mine (empty) Evans, Dave vc57_irecords_extract iBRC45819790
DWT Wyver Lane SK34P 02/09/2025 5 mine (empty) Evans, Dave vc57_irecords_extract iBRC45019764
DWT Wyver Lane SK34P 13/08/2025 3 mine (empty) Evans, Dave vc57_irecords_extract iBRC44440749
DWT Wyver Lane SK34P 06/08/2025 4 mine (empty) Evans, Dave vc57_irecords_extract iBRC44213441
DWT Wyver Lane SK34P 23/07/2025 1 mine (empty) Evans, Dave vc57_irecords_extract iBRC43746924
Monsall Trail SK17R 14/10/2024 1 mine (empty) Harvey, Martin C. vc57_irecords_extract iBRC38898617
DWT Wyver Lane SK34P 12/09/2024 6 mine (empty) Evans, Dave vc57_irecords_extract iBRC38431862
DWT Wyver Lane SK34P 04/09/2024 10 mine (empty) Evans, Dave vc57_irecords_extract iBRC38312552
Blacka Moor and Plantation SK28V 27/06/2015 2 Larva Watchorn, Andrew vc57_irecords_extract iBRC6215708
Millers Dale SK17G 03/09/2011 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COU5G
Thorpe, Ashbourne DE, UK SK15K 13/10/2010 1 Larva Orridge, Steve vc57_irecords_extract iBRC45128483
Thorpe, Dovedale SK15K 13/10/2010 1 Larval Mine S.A. Orridge;S.H. Hind vc57_danes_bc_data LC000334001COTQS
Ladybower Resr SK18U 03/09/2010 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COXIP
Howden Resr SK19L 25/08/2010 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP099
Howden Resr SK19S 25/08/2010 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COXHZ
Slippery Stones,Upper Derwent SK19S 25/08/2010 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COXII
Padley Gorge, Nether Padley SK27P 19/08/2010 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COXGU
Linacre SK37G 13/10/2009 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COWZX
Monsall Trail, Buxton SK17L 14/09/2008 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COSNV
Mousley Bottom, New Mills SJ98X 03/09/2007 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP44U
Shallcross Wood, Goyt Valley, Whaley Bridge SK07E 26/09/2006 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CP9YH
Clattercotes Wood, nr Ogston Resr SK36Q 12/07/2006 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001CORT0
Brackley Gate, nr Coxbench SK34W 03/11/2001 1 Larval Mine S.H. Hind vc57_danes_bc_data LC000334001COR0I

 
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