Parornix anglicella       Parornix scoticella
15.029 BF304  –  Gracillariidae –  Gracillariinae – Parornix devoniella – Hazel Parornix – (Stainton, 1850) Adult Micro:  CAT 4 – Gen. Det. Required – Gen-Det-Reqd       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
Blue –  Generally Common / Widespread        purple – Leaf Miner
Taxonomy:   Micro   >>  Gracillariidae  >> Gracillariinae
Other Name/s: Hazel Slender
ID Difficulty:  Red – difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.
Confusion Species: < Parornix anglicella /Parornix scoticella >
ID pointers: All parornix species require particular care in identification. Adults are all similar to each other and are best determined by either gen-det or by rearing through the food plant. They all have a distinctive resting posture with the front part of the body raised on the forelegs, and a slightly up-curved rear.
Distribution:  The species is nationally common in Britain and so it is likely to be common where the food plant is. More likely that the mine is discovered.
Flight Period: May /  August /  –  On the wing during May and again in August Mine Period: July /  September /   – The larvae feed on hazel (Corylus avellana), initially creating a squarish blotch on the underside, and then folding over the edge of the same, or a nearby leaf. Photographed: Yes –  Photographed By: Steve Orridge, Martin C.Harvey (Leaf Mine)  © All Rights Reserved
*** Last updated on 6 May 2025 by RP ***
Wingspan: 9-10mm
 Food Plant: Hazel
Recorded dates for Common [Blue code Blue-coded] moths are not stored on the website at this current time.
IMAGES BELOW:  Buxton, Derbyshire – Steve Orridge © / Martin C.Harvey©

15.029 BF304 - Gracillariidae - Gracillariinae - Parornix species (devoniella)
Parornix devoniella – Steve Orridge
Parornix devoniella - Martin C Harvey
Parornix devoniella – Martin C Harvey
Parornix devoniella - Martin C Harvey
Parornix devoniella – Martin C Harvey
15.029 BF304 - Gracillariidae - Gracillariinae - Parornix species (devoniella)
Parornix devoniella - Martin C Harvey
Parornix devoniella - Martin C Harvey

no images were found

 

Distribution Map for Parornix devoniella

Found 38 records
    ↳ 1 from After 2025
    ↳ 15 from 2020 - 2024
    ↳ 22 from Before 2020

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.

******* Choose ONLY one at a time, of either Monad, Tetrad or Hectad Distribution - each has it's own set of data. Also, the distribution maps cover ALL recorded data. *******

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.

Land-cover * shows the variety of land-cover within the VC57 area, based on the CORINE (Coordination of Information on the Environment) forty-four thematic classes of land-cover. This will show, to a greater or lesser degree, the number and variety of moths found in different land-cover types. The UK continues to operate within the Copernicus programme, with the UK Centre for Ecology & Hydrology (UKCEH) providing Corine Land Cover (CLC) datasets for the UK and its territories.


NBN Atlas UK Distribution for – Parornix devoniella

⚠️ Please wait for the map to load fully – do not click the link shown.


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: Parornix devoniella
( data includes both Larvae and Adult Stages )

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


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


CUSUM Analysis: Parornix devoniella
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 13 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 7 (July) 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: Parornix devoniella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Parornix devoniella
( 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
Parornix devoniella
( 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 - Parornix devoniella – 38 records available

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

TaxonSite NameTetradYearDateCountStageSource
Parornix devoniellaShaw Farm, New Mills VCSJ98Y202512/08/20251minevc57_irecords_extract
Parornix devoniellaBurton upon TrentSK32P202405/11/20241Minevc57_irecords_extract
Parornix devoniellaMonsall HeadSK17V202414/10/20241minevc57_irecords_extract
Parornix devoniellaChee DaleSK17G202415/10/20241minevc57_irecords_extract
Parornix devoniellaLathkill DaleSK16X202416/10/20241minevc57_irecords_extract
Parornix devoniellaCalke AbbeySK32R202416/10/20241minevc57_irecords_extract
Parornix devoniellaDerbyshire, UKSK15L202420/10/20241Larvavc57_irecords_extract
Parornix devoniellaPoppy WoodSK32S202322/11/20231Minevc57_irecords_extract
Parornix devoniellaCalke ParkSK32R202301/10/20231Minevc57_irecords_extract
Parornix devoniellaCarver's RocksSK32G202330/09/20231Minevc57_irecords_extract
Parornix devoniellaCarver's RocksSK32H202321/09/20231Minevc57_irecords_extract
Parornix devoniellaLadycroft AveSK07S202302/07/20231adultvc57_irecords_extract
Parornix devoniellaLadycroft AveSK07S202306/07/20231adultvc57_irecords_extract
Parornix devoniellaLadycroft AveSK07S202319/07/20231adultvc57_irecords_extract
Parornix devoniellaAllestree ParkSK34K202225/09/20221Minevc57_irecords_extract
Parornix devoniellaNorth Lees Estate, HathersageSK28G202121/08/20211mine (empty)vc57_irecords_extract
Parornix devoniellaGrange WoodSK21S201813/09/20181Minevc57_irecords_extract
Parornix devoniellaThorpe, Ashbourne DE, UKSK15K201013/10/20101Larvavc57_irecords_extract
Parornix devoniellaThorpe, DovedaleSK15K201013/10/20101Larval Minevc57_danes_bc_data
Parornix devoniellaLadybower ResrSK18U201003/09/20101Larval Minevc57_danes_bc_data
Parornix devoniellaBamfordSK28B201021/09/20101Larval Minevc57_danes_bc_data
Parornix devoniellaAshford in the WaterSK16Z201022/09/20101Larval Minevc57_danes_bc_data
Parornix devoniellaRose Av,ClowneSK57D201021/05/20101Adultvc57_danes_bc_data
Parornix devoniellaHopeSK18R200907/10/20091Larval Minevc57_danes_bc_data
Parornix devoniellaHopton Wood NR, CromfordSK25T200916/10/20091Larval Minevc57_danes_bc_data
Parornix devoniellaTissington Trail, AshbourneSK14T200901/10/20091Larval Minevc57_danes_bc_data
Parornix devoniellaCoombs Dale,Stoney MiddletonSK27H200912/10/20091Larval Minevc57_danes_bc_data
Parornix devoniellaForemark Resr (sailing club area), TicknallSK32H200902/10/20091Larval Minevc57_danes_bc_data
Parornix devoniellaCoombs Dale,Stoney MiddletonSK27H200912/10/20091Larval Minevc57_danes_bc_data
Parornix devoniellaLinacreSK37L200913/10/20091Larval Minevc57_danes_bc_data
Parornix devoniellaCromfordSK25Y200916/10/20091Larval Minevc57_danes_bc_data
Parornix devoniellaCalke ParkSK32L200825/10/20081Minevc57_irecords_extract
Parornix devoniellaCalke Park,TicknallSK32R200825/10/20081Larval Minevc57_danes_bc_data
Parornix devoniellaLathkill Dale,BakewellSK16Y200819/09/20081Larval Minevc57_danes_bc_data
Parornix devoniellaCarr Vale NR,BolsoverSK47K200613/09/20061Larval Minevc57_danes_bc_data
Parornix devoniellaForemark Resr, TicknallSK32H200509/07/20051Adultvc57_danes_bc_data
Parornix devoniellaHillclifflane, nr IdridgehaySK24Y200202/11/20021Larval Minevc57_danes_bc_data
Parornix devoniellaAbbotsholme School, RocesterSK13E200104/10/20011Larval Minevc57_danes_bc_data

 
Parornix anglicella       Parornix scoticella

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