15.029 BF304  –  Gracillariidae –  Gracillariinae – Parornix devoniella – Hazel Parornix – (Stainton, 1850) Adult Micro:  CAT 4 – Dissection 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.
General Comment: None
Flight Period: May /  August –  On the wing during May and again in August Mine Period:  July /  September
Mine Period Additional: 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.
Mine ID Difficulty: Not Recorded
Mine Type/s: Not Recorded
Mine Feeding Method/s: Not Recorded
Mine Comment: None.
Photographed: Yes –  Photographed By: Steve Orridge, Martin C.Harvey (Leaf Mine)  © All Rights Reserved
*** Last updated on 12 October 2025 by TD ***
Wingspan: 9-10mm
Food Plant: Hazel
Specific Recorded History Dates for Common [Blue code Blue-coded] moths is not displayed/updated in this tab. However, all verified records for this moth are listed in the RECORDS tab below.

Selected Images:  Buxton, Derbyshire – Steve Orridge © / Martin C.Harvey©



 

Distribution Map for Parornix devoniella

Found 41 records
    ↳ from 2026+
    ↳ 19 from 2020 - 2025
    ↳ 22 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 – Parornix devoniella

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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: 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: 11.37%   |   Total % Change: 1225%

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 2020-2026.

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 2020-2026.

Records Behind the Map and Charts - Parornix devoniella – 41 records available

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

Site NameTetradDateCountStageSource
Sunnydale LNRSK33G03/11/202550minevc57_irecords_extract
Markham Vale, SeymourSK47L06/10/20251minevc57_irecords_extract
Sunnydale LNRSK33G05/10/20251minevc57_irecords_extract
Shaw Farm, New Mills VCSJ98Y12/08/20251minevc57_irecords_extract
Burton upon TrentSK32P05/11/20241Minevc57_irecords_extract
Derbyshire, UKSK15L20/10/20241Larvavc57_irecords_extract
Lathkill DaleSK16X16/10/20241minevc57_irecords_extract
Calke AbbeySK32R16/10/20241minevc57_irecords_extract
Chee DaleSK17G15/10/20241minevc57_irecords_extract
Monsall HeadSK17V14/10/20241minevc57_irecords_extract
Poppy WoodSK32S22/11/20231Minevc57_irecords_extract
Calke ParkSK32R01/10/20231Minevc57_irecords_extract
Carver's RocksSK32G30/09/20231Minevc57_irecords_extract
Carver's RocksSK32H21/09/20231Minevc57_irecords_extract
Ladycroft AveSK07S19/07/20231adultvc57_irecords_extract
Ladycroft AveSK07S06/07/20231adultvc57_irecords_extract
Ladycroft AveSK07S02/07/20231adultvc57_irecords_extract
Allestree ParkSK34K25/09/20221Minevc57_irecords_extract
North Lees Estate, HathersageSK28G21/08/20211mine (empty)vc57_irecords_extract
Grange WoodSK21S13/09/20181Minevc57_irecords_extract
Thorpe, Ashbourne DE, UKSK15K13/10/20101Larvavc57_irecords_extract
Thorpe, DovedaleSK15K13/10/20101Larval 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
Rose Av,ClowneSK57D21/05/20101Adultvc57_danes_bc_data
Hopton Wood NR, CromfordSK25T16/10/20091Larval Minevc57_danes_bc_data
CromfordSK25Y16/10/20091Larval Minevc57_danes_bc_data
LinacreSK37L13/10/20091Larval Minevc57_danes_bc_data
Coombs Dale,Stoney MiddletonSK27H12/10/20091Larval Minevc57_danes_bc_data
Coombs Dale,Stoney MiddletonSK27H12/10/20091Larval Minevc57_danes_bc_data
HopeSK18R07/10/20091Larval Minevc57_danes_bc_data
Foremark Resr (sailing club area), TicknallSK32H02/10/20091Larval Minevc57_danes_bc_data
Tissington Trail, AshbourneSK14T01/10/20091Larval Minevc57_danes_bc_data
Calke ParkSK32L25/10/20081Minevc57_irecords_extract
Calke Park,TicknallSK32R25/10/20081Larval Minevc57_danes_bc_data
Lathkill Dale,BakewellSK16Y19/09/20081Larval Minevc57_danes_bc_data
Carr Vale NR,BolsoverSK47K13/09/20061Larval Minevc57_danes_bc_data
Foremark Resr, TicknallSK32H09/07/20051Adultvc57_danes_bc_data
Hillclifflane, nr IdridgehaySK24Y02/11/20021Larval Minevc57_danes_bc_data
Abbotsholme School, RocesterSK13E04/10/20011Larval Minevc57_danes_bc_data

 
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