4.079X  – Oak-bark Dot agg – Zimmermannia atrifrontella/longicaudella Adult Micro:  CAT 1 – Distinctive species unlikely to be confused with others –       Leaf-miner:  CAT A – Recorded accepted without the leaf or a photo –       Larval Case:  C4 – As C3 but also a Gen.Det. required – Gen. Det. Required       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Verification Notes: Rather than lose this record of an adult, along with a record of the leaf-mines, we have created an aggregate 4.079X Zimmermannia atrifrontella/ longicaudella – the data for this record is also entered to the species page 4.079. Unfortunately the recorder wasn’t able to obtain a Genitalia Determination as the species is a CAT4, so record was set as  unable to be verified.

Black – Uncertain/Unknown – Insufficient Data        purple – Leaf-miner
Taxonomy:   Micro   >>  Nepticulidae  >> Nepticulinae
** This page is to record aggregated records only – see individual species pages for additional information **
Other Name/s: Oak-bark Pigmy agg – Ectoedemia atrifrontella/longicaudella
ID Difficulty:  Red – difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.
Confusion Species: atrifrontella/longicaudella
Distribution:  (First record: 12 August 2025 at Norton Lees )  –  (Last record: 25 January 2026 at  Markham Vale )  –  The UK status and distribution of this pair is insufficiently known.
Zimmermannia atrifrontella: Found in woodland in south-eastern England from Kent to Wiltshire and Dorset. Zimmermannia longicaudella: Trapped in Britain for the first time in Buckinghamshire on 12 July 2009 Both species mine in the bark of Oak and are indistinguishable from each other in this stage.  
General Comment: Rather than lose this record of an adult, along with a record of the leaf-mines, we have created an aggregate 4.079X Zimmermannia atrifrontella/ longicaudella – the data for this record is also entered to Zimmermannia atrifrontella, but cross-reference to this aggregate page. Unfortunately the recorder wasn’t able to obtain a Genitalia Determination as the species is a CAT4, so record was set as  unable to be verified.
Flight Period: June /  July /  August /  September Mine Period:  January /  February /  November /  December
Mine Period Additional: None.
Mine ID Difficulty:  Red Mine Leaf – Mine cannot be identified without breeding through and then adult may need to be examined by Gen Det Prep.
Mine Type/s: Not Recorded
Mine Feeding Method/s: Not Recorded
Mine Comment: The mines are indistinguishable from longicaudella and need to be recorded as aggregate Zimmermannia atrifrontella/longicaudella. The larvae mine underneath the tree bark of the food plant. 
 – but can be disturbed during the day Photographed: Yes –  Photographed By: Pete Mella – adult / Mark Radford – leaf-mine  © All Rights Reserved
*** Last updated on 9 February 2026 by TD ***
Food Plant: Oak
Last Recorded Year: 2026
First Recorded Year: 2025
Last Recorded By – Mark Radford – possible leaf-mines
Last Recorded General Area – Markham Vale

Selected Images:  

Norton Lees (Aug2025) Pete Mella© / Leaf-mines – Hall lane Ponds, Markham Vale – Mark Radford©



Occurrence Distribution From All Available Data (Adult & Immature)
(click legend below to show/hide datasets)

Distribution Map for Zimmermannia atrifrontella/longicaudella

Found 1 records
    ↳ 1 from 2026+
    ↳ from 2020 - 2025
    ↳ 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 - No LSID found for: Zimmermannia atrifrontella/longicaudella
This moth may be an aggregate and as such no specific records of distribution exist.


Monthly Records By Year: Zimmermannia atrifrontella/longicaudella
( data includes both Larvae and Adult Stages )
No data returned from the database.

Monthly Counts By Year: Zimmermannia atrifrontella/longicaudella
( data is based on 'Adult' stage records only. )


First/Last Recorded Dates: Zimmermannia atrifrontella/longicaudella
Adult-only & Anything [Larvae, Pupae, Adult, Mines]

Shading shows moth presence between dates

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Recordings By Year: Zimmermannia atrifrontella/longicaudella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Zimmermannia atrifrontella/longicaudella
AGR: 0%   |   Total % Change: 0%
Zimmermannia atrifrontella/longicaudella
Insufficient records/data for an AGR analysis
Years Analysed: 2000 – 2025

Hectad (10kmx10km) Coverage: Zimmermannia atrifrontella/longicaudella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Zimmermannia atrifrontella/longicaudella

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
Zimmermannia atrifrontella/longicaudella
( 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 - Zimmermannia atrifrontella/longicaudella – 1 records available

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

Site NameTetradDateCountStageSource
Hall Lane PondSK47H24/01/202610minevc57_irecords_extract

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