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 
– Uncertain/Unknown – Insufficient Data 
– Leaf Miner
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.Confusion Species: Stigmella salicis, Stigmella obliquella
ID pointers: Adults are mostly blackish with a slight purple sheen and an obvious white or creamy blotch. The head is orange or yellowish.
Distribution: (Last record: 24 November 2025 at Glossop ) – Uncertain due to insufficient data – one record from 1975 – The leaf mine was discovered from Sett Valley 13/11/2025 and at least 12 mines found at Markham Vale amongst Sallow leaf litter – both are significant finds but suspect the mines are common and simply been over-looked..
General Comment: Notes by Christian Heintzen re image Ectoedemis intimella – 19th Nov 2025 – Thornsett, Sett Valley – on Goat Willow (Salix caprea) in green sector of fallen leaf (A) > early mine in midrib/petiole then full depth blotch against midrib (B) > mine in green island (a) with two diverging frass lines (b) > tenanted mine (c) with greenish larva with brown head
Mine Period Additional: The larvae mine the leaves of sallow, initially mining the leaf petiole and midrib of the leaf. Subsequently it mines into the leaf-blade, creating a green island and tends to form a fairly distinctive blotch mine containing two diverging lines of frass. The moth overwinters as a pupa in a pale ochreous to light reddish-brown cocoon found on the ground or in amongst leaf litter
Mine ID Difficulty:
– 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: Stem
Mine Comment: The larvae mine the leaves of various Salix species, including goat willow (Salix caprea), grey willow (Salix cinerea), and crack willow (Salix fragilis). The larvae feed from July to November. The larva can often be found in so called green islands amongst fallen Sallow leaves. Eggs are laid on the upper side of a sallow (willow) leaf, typically near the midrib.
*** Last updated on 7 December 2025 by TD ***
Last Recorded Year: 2025
Last Recorded By – Christian Heintzen
Last Recorded General Area – Glossop
Selected Images: Sett Valley – 13/11/2025 and 19/11/2025 and Glossop 24/11/2025 – Christian Heintzen© / Markham Vale 13/11/2025 – Mark Radford©
Image Gallery
Distribution Map for Ectoedemia intimella
Found 4 records
↳ 4 from 2025+
↳ from 2020 - 2024
↳ from Before 2020
↳ 4 from 2025+
↳ from 2020 - 2024
↳ 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 – Ectoedemia intimella
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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:
Ectoedemia intimella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Ectoedemia intimella
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Ectoedemia intimella
Adult-only & Anything [Larvae, Pupae, Adult, Mines]
Shading shows moth presence between dates
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Recordings By Year: Ectoedemia intimella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Ectoedemia intimella
AGR: 0% | Total % Change: 0%
Ectoedemia intimella
Insufficient records/data for an AGR analysis
Years Analysed: 2000 – 2025
Ectoedemia intimella
Insufficient records/data for a CUSUM analysis
Years Analysed: 2000 – 2025
Hectad (10kmx10km) Coverage: Ectoedemia intimella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Ectoedemia intimella
Ectoedemia intimella
( 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 2020-2025.
Mine Periods – Indicative –vs– Recorded Data
Ectoedemia intimella
Ectoedemia intimella
( 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 2020-2025.
Records Behind the Map and Charts - Ectoedemia intimella – 4 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Glossop, Hague Street | SK09G | 24/11/2025 | 3 | Leaf-mine | vc57_irecords_extract |
| Thornsett, Sett Valley | SK08D | 19/11/2025 | 1 | Leaf-mine | vc57_irecords_extract |
| Markham Vale South Tip | SK47K | 13/11/2025 | 10 | mine | vc57_irecords_extract |
| Hayfield-Birch Vale, Sett Valley Trail | SK08D | 13/11/2025 | 1 | Leaf-mine | vc57_irecords_extract |