Leaf-miner: CAT L – The leaf or a Photo required – 
Larval Case: C1 – Distinctive Species – 
– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Rare / Uncommon / Scarce 
– Leaf-miner
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required. ID pointers: The adult moth has purplish-bronzy forewings with a shining silvery band (fascia) across them. Adults are typically on the wing in two generations: one in May and another in August.
Distribution: (Last record: 7 November 2025 at Long Clough, Glossop ) – National Status – Common and widely distributed – Derbyshire status thinly spread and scarce. Most records refer to Leaf Mines.
General Comment: The species appears to be partly or wholly parthenogenetic (reproducing without males) in some regions.
Notes by Christian Heintzen on image dated 7/11/2025 – on Hazel (Corylus) (A) > long narrow and often following veins, hence often angular > initially filled with narrow frass line, later becoming more scattered > egg lower surface often against vein but not in vein axil > exit slit on lower surface of leaf
Mine Period Additional: July and October – November
Mine ID Difficulty:
– Care required in ID process as confusion with similar leaf mines. Quality photos of the mine required. Mine Type/s: Gallery
Mine Feeding Method/s: Not Recorded
Mine Comment: The larva creates a narrow and long, often angular, gallery that usually follows the veins of the leaf. Numerous mines can be located on each leaf. Frass is depositied in a narrow central line to start with becoming dispersed later. This helps to distinguish it from that of the similar Stigmella floslactella. Favours Hazel (Corylus). Several larvae may mine the same leaf.
*** Last updated on 8 December 2025 by TD ***
Last Recorded Year: 2025
Last Recorded By – Chrsitian Heintzen
Last Recorded General Area – Long Clough, Glossop
Selected Images: Dave Evans – September 2024 & August 2022 – Wyver Lane, Belper. / Long Clough 7/11/2025 – Christian Heintzen©
Image Gallery
Occurrence Distribution From All Available Data (Adult & Immature)
(click legend below to show/hide datasets)
Distribution Map for Stigmella microtheriella
Found 49 records
↳ from 2026+
↳ 30 from 2020 - 2025
↳ 19 from Before 2020
↳ from 2026+
↳ 30 from 2020 - 2025
↳ 19 from Before 2020
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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 microtheriella
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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.
Monthly Records By Year:
Stigmella microtheriella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Stigmella microtheriella
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Stigmella microtheriella
Adult-only & Anything [Larvae, Pupae, Adult, Mines]
Shading shows moth presence between dates
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Recordings By Year: Stigmella microtheriella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Stigmella microtheriella
AGR: 8.45% | Total % Change: 600%
Hectad (10kmx10km) Coverage: Stigmella microtheriella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Stigmella microtheriella
Stigmella microtheriella
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 microtheriella
Stigmella microtheriella
( 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 microtheriella – 49 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Glossop, DWT Long Clough | SK09G | 07/11/2025 | 1 | Leaf-mine | vc57_irecords_extract |
| Staveley garden SYA | SK47H | 25/10/2025 | 50 | mine | vc57_irecords_extract |
| Darwin Forest | SK36C | 06/10/2025 | 11 | mine (empty) | vc57_irecords_extract |
| Darwin Forest | SK26X | 04/10/2025 | 4 | mine (empty) | vc57_irecords_extract |
| Elvaston Country Park | SK43B | 21/09/2025 | 1 | mine | vc57_irecords_extract |
| Sunnydale LNR | SK33G | 22/08/2025 | 3 | mine | vc57_irecords_extract |
| Ingleby Ave, Derby | SK33L | 22/08/2025 | 3 | mine | vc57_irecords_extract |
| Meersbrook Park | SK38M | 22/08/2025 | 1 | mine | vc57_irecords_extract |
| Graves Park (Chantreyland Meadow) | SK38K | 15/08/2025 | 1 | mine | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 13/08/2025 | 4 | mine (empty) | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 06/08/2025 | 4 | mine (empty) | vc57_irecords_extract |
| Gleadless Valley LNR | SK38R | 28/07/2025 | 1 | mine | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 23/07/2025 | 4 | mine (empty) | vc57_irecords_extract |
| Darwin Forest | SK36C | 01/07/2025 | 10 | mine (empty) | vc57_irecords_extract |
| Chancet wood | SK38L | 06/12/2024 | 1 | Adult | vc57_irecords_extract |
| Pottery Wood | SK32G | 05/11/2024 | 1 | Mine | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 30/10/2024 | 6 | mine (empty) | vc57_irecords_extract |
| Tom Wood, Charlesworth | SJ99W | 26/10/2024 | 1 | Larva | vc57_irecords_extract |
| River Derwent, Derby | SK33S | 21/09/2024 | 1 | mine | vc57_irecords_extract |
| River Derwent, Derby | SK33S | 21/09/2024 | 1 | mine | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 12/09/2024 | 12 | mine (tenant | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 04/09/2024 | 7 | mine (empty) | vc57_irecords_extract |
| Cromford Canal | SK35G | 18/08/2024 | 5 | mine (empty) | vc57_irecords_extract |
| Cromford Canal | SK35G | 17/08/2024 | 2 | mine (empty) | vc57_irecords_extract |
| Poppy Wood | SK32S | 22/11/2023 | 1 | Mine | vc57_irecords_extract |
| Calke Park | SK32R | 07/10/2023 | 1 | Mine | vc57_irecords_extract |
| Calke Park | SK32R | 01/10/2023 | 1 | Mine | vc57_irecords_extract |
| Carver's Rocks | SK32G | 30/09/2023 | 1 | Mine | vc57_irecords_extract |
| Carver's Rocks | SK32H | 21/09/2023 | 1 | Mine | vc57_irecords_extract |
| DWT Wyver Lane | SK34P | 10/11/2021 | 20 | mine (empty) | vc57_irecords_extract |
| Bamford, Win Hill and Thornhill Trail | SK28B | 02/10/2018 | 1 | Adult | vc57_irecords_extract |
| Grange Wood | SK21S | 13/09/2018 | 1 | Mine | vc57_irecords_extract |
| Burrs Wood, Cordwell Valley | SK37C | 01/11/2015 | 1 | mine (empty) | vc57_irecords_extract |
| Coton Wood, Coton in the Elms, Swadlincote | SK21M | 21/09/2014 | 1 | Larval Mine | vc57_danes_bc_data |
| Hartshorne Wood, Hartshorne, Swadlincote | SK32G | 13/08/2014 | 1 | Larval Mine | vc57_danes_bc_data |
| Millennium Meadow NR, Duffield | SK34L | 09/08/2014 | 1 | Larval Mine | vc57_danes_bc_data |
| Back Lane,Glapwell | SK46T | 26/05/2012 | 1 | Adult | vc57_danes_bc_data |
| Millers Dale | SK17G | 03/09/2011 | 1 | Larval Mine | vc57_danes_bc_data |
| Ashford in the Water | SK16Z | 22/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Ashford in the Water | SK16Z | 22/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Bamford | SK28B | 21/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Ladybower Resr | SK18U | 03/09/2010 | 1 | Larval Mine | vc57_danes_bc_data |
| Hopton Wood NR, Cromford | SK25T | 16/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Coombs Dale,Stoney Middleton | SK27H | 12/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Coombs Dale,Stoney Middleton | SK27H | 12/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Hope | SK18R | 07/10/2009 | 1 | Larval Mine | vc57_danes_bc_data |
| Calke Park | SK32L | 25/10/2008 | 1 | Mine | vc57_irecords_extract |
| Calke Park,Ticknall | SK32R | 25/10/2008 | 1 | Larval Mine | vc57_danes_bc_data |
| Cubley, nr Ashbourne | SK13U | 04/10/2001 | 1 | Larval Mine | vc57_danes_bc_data |