Nematopogon metaxella       Incurvaria pectinea
Nematopogon swammerdamella - 1st June 2019 - Birch Vale -Jane Hewitt
7.015 BF140  – Large Longhorn  – Nematopogon swammerdamella
Adult Micro:  CAT 2 – Can be confused with other species –      
PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Blue –  Generally Common / Widespread        day-flying – Day-flying
Taxonomy:   Micro   >>  Adelidae  >> Nematopogoninae
Other Name/s: Large Long-horn
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Nematopogon schwarziellus, Nematopogon metaxella
ID pointers: The largest of the Longhorn species in Britain. The size and lack of a discal spot should help with ID
Distribution:  Generally distributed throughout the county, more so in the northern half with few records from the south
General Comment: None Flight Period: May /  June –  One generation – May-June Photographed: Yes –  Photographed By: Jane Hewitt  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 17-21mm
 Food Plant: Various herbaceous plants associated with woodland habitat
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:  

Birch Vale – 2019 – Jane Hewitt©

Nematopogon swammerdamella - 1st June 2019 - Birch Vale -Jane Hewitt
Nematopogon swammerdamella – 1st June 2019 – Birch Vale -Jane Hewitt
Nematopogon swammerdamella - 1st June 2019 - Birch Vale -Jane Hewitt


Image Gallery

Nematopogon swammerdamella- 1st June 2019 -Birch Vale-Jane Hewitt

Temporal Distribution Chart
Adults: (between 1979 - 2025)
(click legend below to show/hide datasets)

Distribution Map for Nematopogon swammerdamella

Found 62 records
    ↳ from 2026+
    ↳ 31 from 2020 - 2025
    ↳ 31 from Before 2020
Flying
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 – Nematopogon swammerdamella

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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: Nematopogon swammerdamella
( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Nematopogon swammerdamella
( data is based on 'Adult' stage records only )

First/Last Recorded Dates: Nematopogon swammerdamella
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: Nematopogon swammerdamella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Nematopogon swammerdamella
AGR: 0.67%   |   Total % Change: 15%

Hectad (10kmx10km) Coverage: Nematopogon swammerdamella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Nematopogon swammerdamella

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.

Records Behind the Map and Charts - Nematopogon swammerdamella – 62 records available

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

Site NameTetradDateCountStageRecorderSourceRecordKey
Spring Wood, CalkeSK32W24/05/20251adultNeil Gregoryvc57_irecords_extractiBRC41789015
Derbyshire Wild Life Trust Long Clough, Herod CloughSK09G24/05/20251adultHeintzen, Christianvc57_irecords_extractiBRC43979335
DWT Wyver LaneSK34P20/05/20251adultEvans, Davevc57_irecords_extractiBRC41723822
SheffieldSK38M20/05/20251adultTurner, Janvc57_irecords_extractiBRC41825716
Longdendale, Wildboar Clough WoodlandSK09U20/05/20252adultHeintzen, Christianvc57_irecords_extractiBRC43979251
Belper, DerbyshireSK34N19/05/20251adultNewcombe, Davevc57_irecords_extractiBRC43709743
Simmondley Oak woodSK09B19/05/20252adultHeintzen, Christianvc57_irecords_extractiBRC43979214
Buxton: Light WoodSK07M18/05/20251adultHarvey, Martin C.vc57_irecords_extractiBRC41755360
Lightwood Reserve, BuxtonSK07M18/05/20251adultTaylor, Suevc57_irecords_extractiBRC42059515
upper cromford gardenSK25Y17/05/20251adultAshton, Clivevc57_irecords_extractiBRC41661822
Derbyshire Wild Life Trust Long CloughSK09G17/05/20251adultHeintzen, Christianvc57_irecords_extractiBRC43979179
upper cromford gardenSK25Y16/05/20251adultAshton, Clivevc57_irecords_extractiBRC41639794
upper cromford gardenSK25Y15/05/20251adultAshton, Clivevc57_irecords_extractiBRC41616390
Derbyshire Wild Life Trust Long CloughSK09G11/05/20251adultHeintzen, Christianvc57_irecords_extractiBRC43979072
Froggatt, Hope ValleySK27N10/05/20251adultBarnacle, Bryanvc57_irecords_extractiBRC41499663
upper cromford gardenSK25Y10/05/20251adultAshton, Clivevc57_irecords_extractiBRC41501821
upper cromford gardenSK25Y07/05/20252adultAshton, Clivevc57_irecords_extractiBRC41431600
Cromford MoorSK25X06/05/20251adultAshton, Clivevc57_irecords_extractiBRC41401581
Cotleigh Crescent, HackenthorpeSK48B03/05/20251adultLeanne Wallvc57_irecords_extractiBRC41475858
Derbyshire Wild Life Trust Long CloughSK09G03/05/20251adultHeintzen, Christianvc57_irecords_extractiBRC43979023
Cross Green, Matlock DEJW, UKSK26Q01/06/20241AdultMoores, Stephenvc57_irecords_extractiBRC36243657
Baslow, Bakewell DEPQ, UKSK27R31/05/20241AdultLee Martinvc57_irecords_extractiBRC36196066
upper cromford gardenSK25Y25/05/20241adultAshton, Clivevc57_irecords_extractiBRC36113935
Longdendale, Wildboar CloughSK09U19/05/20241adultHeintzen, Christianvc57_irecords_extractiBRC36371788
Blacka MoorSK28V05/05/20241adultHigginson-Tranter, Davevc57_irecords_extractiBRC35811100
Glossop, Bray CloughSK09K01/05/20241adultHeintzen, Christianvc57_irecords_extractiBRC36371561
Glossop, The TwitchlingsSK09K03/06/20231adultHeintzen, Christianvc57_irecords_extractiBRC36336105
Staveley DerbyshireSK47H17/05/20231adultMorris, Sidvc57_irecords_extractiBRC30392188
Derbyshire Wild Life Trust Long CloughSK09G16/05/20232adultHeintzen, Christianvc57_irecords_extractiBRC36335953
Derbyshire Wild Life Trust Long CloughSK09G03/05/20231adultHeintzen, Christianvc57_irecords_extractiBRC36335872
Darley BridgeSK26K24/04/20211AdultMoores, Stephenvc57_irecords_extractiBRC22620145
Birch ValeSK08I01/06/20191adultHewitt, Janevc57_irecords_extractiBRC35073490
Williamthorpe, DerbyshireSK46I17/05/20161adultPlant, Stephenvc57_irecords_extractiBRC35009518
Hartshorne Wood, Hartshorne, SwadlincoteSK32G13/05/20151AdultDave Budworthvc57_danes_bc_dataLC000334001CP9N2
Robin Wood, TicknallSK32S26/05/20141AdultDave Budworthvc57_danes_bc_dataLC000334001COV0W
Via GelliaSK25T04/06/20131adultThorpe, Stevevc57_irecords_extractiBRC33507796
Padley Gorge (Longshaw Est)SK27P03/06/201320AdultD. Mcgeevervc57_danes_bc_dataLC000334001COUQM
Bow Wood,Holloway,MatlockSK35D31/05/20131AdultF. Harrisonvc57_danes_bc_dataLC000334001COUQA
Carr WoodSK45A22/06/20121adultThorpe, Stevevc57_irecords_extractiBRC33510368
Carr Wood, RipleySK45A22/06/20121AdultThorpe, Stevevc57_danes_bc_dataLC000334001CP7TK
Findern Marina, Willington, DerbySK32E12/06/20121AdultM.J. Williamsvc57_danes_bc_dataLC000334001CP7S4
Duffield Rd, Allestree, DerbySK34K06/06/20121AdultP. Smithvc57_danes_bc_dataLC000334001CP7RU
Duffield Rd, Allestree, DerbySK34K04/06/20121AdultP. Smithvc57_danes_bc_dataLC000334001CP7RP
Carr WoodSK45A26/05/20121adultThorpe, Stevevc57_irecords_extractiBRC33510070
Carr Wood, RipleySK45A26/05/20121AdultThorpe, Stevevc57_danes_bc_dataLC000334001CP0CG
Clough Wood,Darley DaleSK26K06/05/20111AdultA. Butlervc57_danes_bc_dataLC000334001CP6UY
High Tor, MatlockSK25Z01/05/20111adultThorpe, Stevevc57_irecords_extractiBRC33512222
Crich Chase,AmbergateSK35L01/05/20111AdultK.R. Hustonvc57_danes_bc_dataLC000334001CP6U5
Bamford St,RipleySK34Z01/05/20111AdultThorpe, Stevevc57_danes_bc_dataLC000334001CP6U8
The Hollies,Station Rd,Darley DaleSK26R15/05/20071AdultRoddis, Simonvc57_danes_bc_dataLC000334001CP3RP
The Hollies,Station Rd,Darley DaleSK26R08/05/20071AdultRoddis, Simonvc57_danes_bc_dataLC000334001CP3RO
Church St,Holloway,MatlockSK35I26/05/20051AdultF. Harrisonvc57_danes_bc_dataLC000334001CP2GO
Church St,Holloway,MatlockSK35I25/05/20051AdultF. Harrisonvc57_danes_bc_dataLC000334001COVRZ
Church St,Holloway,MatlockSK35I24/05/20051AdultF. Harrisonvc57_danes_bc_dataLC000334001COVRY
FOREMARK RESERVOIRSK32G25/05/20041adultDavison, Tonyvc57_irecords_extractiBRC33454994
Carvers Rocks, Hartshorne, SwadlincoteSK32G25/05/20041AdultA. Davison;N. Toplissvc57_danes_bc_dataLC000334001COVKG
The Hollies,Station Rd,Darley DaleSK26R10/05/20041AdultRoddis, Simonvc57_danes_bc_dataLC000334001COR5L
Crich Chase (Holly tree area) (site not precise)SK35L18/05/19911AdultVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001COV81
Crich Chase, Ambergate (site not precise)SK35L04/06/19831AdultVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001CP0OW
Carvers Rocks NR, Hartshorne, Swadlincote (site not precise)SK32G19/05/19811AdultYOUNG, Mr D.A., HARRISON, Mr F., BEAUMONT, Mr H.E.vc57_danes_bc_dataLC000334001COZJH
Carvers Rocks NR,Hartshorne,SwadlincoteSK32G03/06/19791AdultD.A. Youngvc57_danes_bc_dataLC000334001COQAX
Carvers Rocks NR,Hartshorne,SwadlincoteSK32G25/05/19791AdultD.A. Youngvc57_danes_bc_dataLC000334001CP0LR

Nematopogon metaxella       Incurvaria pectinea

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