14.01 BF274  –  Bucculatricidae – Bucculatrix ulmella – Oak Tuft – (Zeller, 1848) Adult Micro:  CAT 2 – Confusion 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   >>  Bucculatricidae
Other Name/s: Oak Bent-wing
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
ID pointers: A tiny moth with an orange tufted head and forewing yellowish white, mottled greyish-brown, with raised blackish scale tufts. Pale buff cilia.
Distribution:  Most probably a common and local species in the county, wherever there are Oak trees. Under-recorded
General Comment: None
Flight Period: April /  May /  June /  August –  On the wing April-June and August Mine Period:  July /  September /  October
Mine Period Additional: The mine is a short contorted gallery close to the midrib of a leaf, containing broken black frass.
Mine ID Difficulty: Not Recorded
Mine Type/s: Not Recorded
Mine Feeding Method/s: Not Recorded
Mine Comment: None.
 – but can be disturbed during the day Photographed: Yes –  Photographed By: Will Soar  © All Rights Reserved
*** Last updated on 9 November 2025 by TD ***
Wingspan: 7-8mm
Food Plant: Deciduous Oak (Quercus) and sometimes Hornbeam
Recorded dates for Common [Blue code Blue-coded] moths are not stored on the website at this current time.

Selected Images:  Kings Newton, Derbyshire – Will Soar © / Markham Vale 4/11/2025 – Mark Radford©



 

Distribution Map for Bucculatrix ulmella

Found 17 records
    ↳ 1 from After 2025
    ↳ 8 from 2020 - 2024
    ↳ 8 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 – Bucculatrix ulmella

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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.

Visit NBN Site


Monthly Records By Year: Bucculatrix ulmella
( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Bucculatrix ulmella
( data is based on 'Adult' stage records only. )


First/Last Recorded Dates: Bucculatrix ulmella
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: Bucculatrix ulmella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Bucculatrix ulmella
AGR: 0%   |   Total % Change: 0%


CUSUM Analysis: Bucculatrix ulmella
About this chart: CUSUM (Cumulative Sum) charts track long-term trends in moth populations [ filtered by 'Adult' and 'Mine' life stages ] by showing whether each year’s counts are above or below the historical average. Even small shifts build up over time, making trends of growth, stability, or decline easier to see. CUSUM highlights trend-consistency — asking: “Across the years, have moth counts mostly stayed above or below average?”
The data sample has 16 gap year/s here (zero records) between 2000 and 2025. The moth may have been present in those gap years, but no data was available. Too many year-gaps may exaggerate or skew the chart.

Counts for the current year (2025) are pro-rated based on data available up to month 9 (September) to provide a full-year equivalent.

Purple line rises = years better than average; falls = years worse than average.
Peak (best year) Trough (worst year) Growth periods Decline periods
Population peaked around 2025, reaching above average levels. The lowest population point occurred near 2024, showing a significant decline.

What the Y-axis "Cumulative Deviation" means: Cumulative Deviation shows the running total of how each year’s moth population count differs from the long-term average. i

Hectad (10kmx10km) Coverage: Bucculatrix ulmella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Bucculatrix ulmella
( 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
Bucculatrix ulmella
( 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 - Bucculatrix ulmella – 17 records available

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

Site NameTetradDateCountStageSource
Darwin ForestSK26X05/07/20251adultvc57_irecords_extract
Burton upon TrentSK32P05/11/20241Minevc57_irecords_extract
Poppy WoodSK32S22/11/20231Minevc57_irecords_extract
Calke ParkSK32R07/10/20231Minevc57_irecords_extract
Carver's RocksSK32G30/09/20231Minevc57_irecords_extract
Carver's RocksSK32H21/09/20231Minevc57_irecords_extract
Allestree ParkSK34K25/09/20221Minevc57_irecords_extract
BelperSK34U29/07/20221adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y07/08/20201Adultvc57_irecords_extract
Grange WoodSK21S13/09/20181Minevc57_irecords_extract
Backgarden MarehaySK34Z08/09/20111adultvc57_irecords_extract
BamfordSK28B21/09/20101Larval Minevc57_danes_bc_data
Howden ResrSK19L25/08/20101Larval Minevc57_danes_bc_data
Calke ParkSK32L25/10/20081Minevc57_irecords_extract
Calke Park,TicknallSK32R25/10/20081Larval Minevc57_danes_bc_data
Broomfield Hall, Morley, DerbySK34V14/11/20061Larval Minevc57_danes_bc_data
Carr Vale NR,BolsoverSK47K13/09/20061Larval Minevc57_danes_bc_data

 
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