15.08 BF358  –  Gracillariidae –  Lithocolletinae – Phyllonorycter froelichiella – Large Alder Leaf-miner – (Zeller, 1839) Adult Micro:  CAT 2 – Confusion Species –       Leaf-miner:  CAT L – The leaf or a Photo required – reared and possibly dissected       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Black – Uncertain/Unknown – Insufficient Data        purple – Leaf Miner
Taxonomy:   Micro   >>  Gracillariidae  >> Lithocolletinae
** Identification write-up required **
Other Name/s: Broad-barred Midget
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Phyllonorycter tristrigella (Elm Leaf-miner); Phyllonorycter nicellii (Hazel leaf-miner)
Distribution:  (Last record: 7 October 2023 at Calke Park )  –  Uncertain due to insufficient data – Probably locally common – Harrison & Sterling lists 4 records to 1985; DaNES 9 records from 2001-2010 all leaf mines; iRecord two in 2023 from Clake Park of Leaf Mines.
General Comment: None
Flight Period: July /  August Mine Period:  September /  October
Mine Period Additional: A long mine on underside of leaf between veins
Mine ID Difficulty: Not Recorded
Mine Type/s: Not Recorded
Mine Feeding Method/s: Not Recorded
Mine Comment: None.
Moth Activity: Cathemeral  Photographed: Yes –  Photographed By: Steve Orridge (Leaf Mine)  © All Rights Reserved
*** Last updated on 12 October 2025 by TD ***
Food Plant: Alder
Last Recorded Year: 2023
Last Recorded By – Graham Finch
Last Recorded General Area – Calke Park

Selected Images:  

Buxton – Steve Orridge©



Distribution Map for Phyllonorycter froelichiella

Found 12 records
    ↳ 0 from After 2025
    ↳ 2 from 2020 - 2024
    ↳ 10 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 – Phyllonorycter froelichiella

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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: Phyllonorycter froelichiella
( data includes both Larvae and Adult Stages )
No data returned from the database.

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


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


CUSUM Analysis: Phyllonorycter froelichiella
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 20 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 2001, reaching above average levels. The lowest population point occurred near 2001, 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: Phyllonorycter froelichiella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Phyllonorycter froelichiella
( 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
Phyllonorycter froelichiella
( 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 - Phyllonorycter froelichiella – 12 records available

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

Site NameTetradDateCountStageSource
Calke ParkSK32R07/10/20231Minevc57_irecords_extract
Calke ParkSK32R01/10/20231Minevc57_irecords_extract
Mam TorSK18G18/09/20152pre-adultvc57_irecords_extract
Ashford in the WaterSK16Z22/09/20101Larval Minevc57_danes_bc_data
Ashford in the WaterSK16Z22/09/20101Larval Minevc57_danes_bc_data
BamfordSK28B21/09/20101Larval Minevc57_danes_bc_data
Ladybower ResrSK18U03/09/20101Larval Minevc57_danes_bc_data
LinacreSK37L13/10/20091Larval Minevc57_danes_bc_data
NorburySK14G01/10/20091Larval Minevc57_danes_bc_data
Broomfield Hall, Morley, DerbySK34V08/11/20081Larval Minevc57_danes_bc_data
Shallcross Wood, Goyt Valley, Whaley BridgeSK07E26/09/20061Larval Minevc57_danes_bc_data
Brackley Gate, nr CoxbenchSK34W03/11/20011Larval Minevc57_danes_bc_data

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