July Highflyer       Ruddy Highflyer
70.075 BF1778  –  Geometridae –  Larentiinae – Hydriomena impluviata – May Highflyer – (Denis & Schiffermüller, 1775) Adult Macro:  CAT 1 – Distinctive species unlikely to be confused with others –       PDF Icon – click for Adult Macro Verification Guidelines
Green –  Rare / Uncommon / Scarce   
Taxonomy:   Macro   >>  Geometridae  >> Larentiinae
ID Difficulty:  green  – easy to identify, generally distinctive and unlikely to be confused with other species.
ID pointers: Usually grey or greenish grey ground colour. Two or three diagonal streaks near the tip of the forewing. Also shows a pale central cross-band.
Distribution:  (Last record: 2 May 2025 at Findern )  –  A resident species that is locally uncommon but widely distributed in the county. It is a species that is associated with water and damp habitat. Adults are often trapped well away from their preferred habitat. The two specimens shown here are well worn which would indicate they may have traveled some distance from water.
Flight Period: May /  June /  –  On the wing between May – June. one generation Moth Activity: Nocturnal   – and is attracted to light Photographed: Yes –  Photographed By: Tony Davison, Dave Evans; Brian Hallam  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 30-34mm
Forewing: 13-16mm Food Plant: Alder.
Last Recorded Year: 2025
Last Recorded By – Brian Hallam
Last Recorded General Area – Findern
Selected Images:  Melbourne – Images by Tony Davison © Belper – Dave Evans© / Findern (May 2025) Brian Hallam

70.075 BF1778 - May Highflyer - Geometridae - Hydriomena impluviata
May Highflyer – Hydriomena impluviata
70.075 BF1778 - May Highflyer - Geometridae - Hydriomena impluviata
May Highflyer – Hydriomena impluviata
May Highflyer - Dave Evans
May Highflyer – Dave Evans
May Highflyer - 2nd May 2025 - Findern - Brian Hallam
May Highflyer – 2nd May 2025 – Findern – Brian Hallam
70.075 BF1778 - May Highflyer - Geometridae - Hydriomena impluviata
70.075 BF1778 - May Highflyer - Geometridae - Hydriomena impluviata
May Highflyer - Dave Evans
May Highflyer - 2nd May 2025 - Findern - Brian Hallam


Image Gallery

May Highflyer - 2nd May 2025 - Findern - Brian Hallam May Highflyer - 3rd June 2024 - Belper - Dave Evans

Distribution Map for Hydriomena impluviata

Found 179 records
    ↳ 20 from After 2025
    ↳ 42 from 2020 - 2024
    ↳ 117 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 – Hydriomena impluviata

⚠️ 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: Hydriomena impluviata
( data includes both Larvae and Adult Stages )

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


First/Last Recorded Dates: Hydriomena impluviata
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: Hydriomena impluviata
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Hydriomena impluviata
AGR: 1.7%   |   Total % Change: 45%


CUSUM Analysis: Hydriomena impluviata
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 4 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 8 (August) 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 2012, reaching above average levels. The lowest population point occurred near 2009, 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: Hydriomena impluviata
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Hydriomena impluviata
( 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.

Records Behind the Map and Charts - Hydriomena impluviata – 179 records available

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

Site NameTetradDateCountStageSource
sheffieldSK38M13/06/20251adultvc57_irecords_extract
Belper, DerbyshireSK34N20/06/20251adultvc57_irecords_extract
Beckside FarmSK24F05/06/20251adultvc57_irecords_extract
Beckside FarmSK24F08/06/20251adultvc57_irecords_extract
MellorSJ98Z01/05/20251adultvc57_irecords_extract
Froggatt, Hope ValleySK27N03/05/20251adultvc57_irecords_extract
Bamford, Hope Valley SBE, UKSK28B12/05/20251Adultvc57_irecords_extract
BelperSK34U11/05/20251adultvc57_irecords_extract
Markham Vale DerbyshireSK47K11/05/20256adultvc57_irecords_extract
Bamford, Hope Valley SBE, UKSK28B13/05/20251Adultvc57_irecords_extract
Old Marble Mill, Ashford in the WaterSK16Z12/05/20251adultvc57_irecords_extract
Ladycroft Ave, BuxtonSK07S10/05/20251adultvc57_irecords_extract
upper cromford gardenSK25Y17/05/20251adultvc57_irecords_extract
Midway, Derbys.SK32A17/05/20251adultvc57_irecords_extract
Bamford, Hope Valley SBE, UKSK28B30/05/20251Adultvc57_irecords_extract
Findern, DerbyshireSK33A02/05/20251adultvc57_irecords_extract
Chaddesden, DerbySK33T23/05/20251adultvc57_irecords_extract
Derbyshire Wild Life Trust Long Clough, Herod CloughSK09G24/05/20254adultvc57_irecords_extract
upper cromford gardenSK25Y29/04/20252adultvc57_irecords_extract
Belper, DerbyshireSK34N14/04/20251adultvc57_irecords_extract
BelperSK34N03/06/20241adultvc57_irecords_extract
Birch ValeSK08I03/06/20241adultvc57_irecords_extract
Birch ValeSK08I07/06/20241adultvc57_irecords_extract
BelperSK34N02/05/20241adultvc57_irecords_extract
Cross Green, Matlock DEJW, UKSK26Q06/05/20241Adultvc57_irecords_extract
Stonebroom.SK45E09/05/20241adultvc57_irecords_extract
Allestree, DerbySK33P11/05/20241adultvc57_irecords_extract
Lower Cromford GardenSK25Y13/05/20241adultvc57_irecords_extract
Lower Cromford GardenSK25Y14/05/20241adultvc57_irecords_extract
Glossop SK, UKSK09B18/05/20241Adultvc57_irecords_extract
Chatsworth Park, BeeleySK26U20/05/20241Adultvc57_irecords_extract
MellorSJ98Z18/05/20241adultvc57_irecords_extract
Derbyshire Wild Life Trust Long CloughSK09G10/05/20241adultvc57_irecords_extract
Derbyshire Wild Life Trust Long CloughSK09G15/05/20241adultvc57_irecords_extract
Glossop, The TwitchlingsSK09M17/05/20241adultvc57_irecords_extract
Woodland AveSK43R17/05/20241adultvc57_irecords_extract
Allestree, DerbySK33P11/05/20241adultvc57_irecords_extract
King's NewtonSK32Y12/05/20243adultvc57_irecords_extract
Shirland - Hallfieldgate LaneSK35Z10/06/20231Adultvc57_irecords_extract
BelperSK34U12/06/20231adultvc57_irecords_extract
Rolls Royce Duffield Bank House, Duffield.SK34L13/06/20231adultvc57_irecords_extract
Derbyshire Wild Life Trust Long CloughSK09G07/06/20231adultvc57_irecords_extract
Ninelands RoadSK28F24/05/20231adultvc57_irecords_extract
Birch ValeSK08I26/05/20231adultvc57_irecords_extract
Upper Cromford GardenSK25Y27/05/20231adultvc57_irecords_extract
Lower Cromford GardenSK25Y31/05/20231adultvc57_irecords_extract
Glossop, Hague Street, Hay meadowSK09G26/05/20231adultvc57_irecords_extract
Derbyshire Wild Life Trust Long CloughSK09G30/05/20231adultvc57_irecords_extract
Hathersage, Derbyshire, UKSK28F03/06/20221adultvc57_irecords_extract
Station Road, Darley DaleSK26R22/06/20221adultvc57_irecords_extract
Derbyshire, UKSK15J12/06/20211Adultvc57_irecords_extract
Ninelands RoadSK28F11/06/20211adultvc57_irecords_extract
Birch ValeSK08I06/06/20211Adultvc57_irecords_extract
Birch ValeSK08I09/06/20211Adultvc57_irecords_extract
Midway, Derbys.SK32A04/06/20211adultvc57_irecords_extract
Ferneydale AvenueSK07Q15/06/20211adultvc57_irecords_extract
Midway, Derbys.SK32A28/05/20211adultvc57_irecords_extract
Station Road, Darley DaleSK26R02/06/20201adultvc57_irecords_extract
Station Road, Darley DaleSK26R25/06/20201adultvc57_irecords_extract
Longhurst Lane, MellorSJ98Z02/06/20201adultDanes_2019-2021
Highfield Drive, MatlockSK36A21/05/20201adultDanes_2019-2021
Briar Close, Newhall, SwadlincoteSK22V20/05/20201adultDanes_2019-2021
Birch ValeSK08I01/06/20191adultvc57_irecords_extract
Ladycroft Ave, BuxtonSK07S24/05/20191adultvc57_irecords_extract
BelSK34U28/05/20191adultvc57_irecords_extract
Pleasley Pit CP, PleasleySK46X19/05/20191Adultvc57_danes_bc_data
Ladycroft Ave, BuxtonSK07S24/05/20191adultDanes_2019-2021
Shirland - Hallfieldgate LaneSK35Z03/06/20181adultvc57_irecords_extract
Birch ValeSK08I01/06/20181adultvc57_irecords_extract
Birch ValeSK08I10/06/20181adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y15/05/20182Adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y03/06/20171Adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y01/06/20171Adultvc57_irecords_extract
Birch ValeSK08I14/06/20171adultvc57_irecords_extract
Birch ValeSK08I22/05/20171adultvc57_irecords_extract
Pleasley Pit CP, PleasleySK46X27/05/20171Adultvc57_danes_bc_data
Backgarden MarehaySK34Z18/06/20161adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y09/06/20161Adultvc57_irecords_extract
Pleasley Pit CP, PleasleySK46X07/05/20161Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X28/05/20163Adultvc57_danes_bc_data
Birch ValeSK08I19/06/20151adultvc57_irecords_extract
Duffield Rd, Allestree, DerbySK34K18/05/20141Adultvc57_danes_bc_data
Duffield Rd, Allestree, DerbySK34K18/05/20141Adultvc57_danes_bc_data
Duffield Rd, Allestree, DerbySK34K11/06/20131Adultvc57_danes_bc_data
Duffield Rd, Allestree, DerbySK34K18/06/20131Adultvc57_danes_bc_data
Duffield Rd, Allestree, DerbySK34K11/06/20131Adultvc57_danes_bc_data
Duffield Rd, Allestree, DerbySK34K18/06/20131Adultvc57_danes_bc_data
Main Street, Kings NewtonSK32Y01/06/20121Adultvc57_irecords_extract
Glebe Rise,Littleover,DerbySK33H01/06/20122Adultvc57_danes_bc_data
The Hollies,Holly St,Stapenhill,Burton on TrentSK22K01/06/20122Adultvc57_danes_bc_data
Markeaton Park (Sturgess Field), DerbySK33I26/05/20129Adultvc57_danes_bc_data
Backgarden MarehaySK34Z19/05/20111adultvc57_irecords_extract
Duffield Rd, Allestree, DerbySK34K06/05/20111Adultvc57_danes_bc_data
Bamford St,RipleySK34Z19/05/20111Adultvc57_danes_bc_data
Duffield Rd, Allestree, DerbySK34K28/05/20111Adultvc57_danes_bc_data
Duffield Rd, Allestree, DerbySK34K28/05/20111Adultvc57_danes_bc_data
Duffield Rd, Allestree, DerbySK34K06/05/20111Adultvc57_danes_bc_data
Backgarden MarehaySK34Z02/06/20101adultvc57_irecords_extract
The Hollies,Station Rd,Darley DaleSK26R04/06/20101Adultvc57_danes_bc_data
DovedaleSK15K07/06/20101Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A04/06/20101Adultvc57_danes_bc_data
DovedaleSK15K07/06/20102Adultvc57_danes_bc_data
Drakelow NR (Minton's Lagoon), Burton on TrentSK22F17/06/20101Adultvc57_danes_bc_data
Drakelow NR (Minton's Lagoon), Burton on TrentSK22F17/06/20101Adultvc57_danes_bc_data
Drakelow NR (car park),Burton on TrentSK22F22/05/20101Adultvc57_danes_bc_data
Elm Wood,DerbySK33R22/05/20108Adultvc57_danes_bc_data
Drakelow NR (car park),Burton on TrentSK22F22/05/20101Adultvc57_danes_bc_data
Wheeldon Av,BelperSK34N22/06/20092Adultvc57_danes_bc_data
Bristol Rd,IlkestonSK44R01/06/20091Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R09/06/20091Adultvc57_danes_bc_data
Drayton Ave,Mackworth,DerbySK33D21/05/20091Adultvc57_danes_bc_data
Wheeldon Av,BelperSK34N24/05/20091Adultvc57_danes_bc_data
Drakelow NR (car park),Burton on TrentSK22F30/05/20091Adultvc57_danes_bc_data
Drayton Ave,Mackworth,DerbySK33D21/05/20091Adultvc57_danes_bc_data
Drakelow NR (car park),Burton on TrentSK22F30/05/20091Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A06/06/20081Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R11/06/20081Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R07/06/20081Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R30/05/20081Adultvc57_danes_bc_data
Briar Close,Newhall,SwadlincoteSK22V30/05/20082Adultvc57_danes_bc_data
Briar Close,Newhall,SwadlincoteSK22V30/05/20082Adultvc57_danes_bc_data
Melbourne, DerbyshireSK32X11/06/20061adultvc57_irecords_extract
Robin WoodSK32M23/06/20062Adultvc57_irecords_extract
Newshaw Lane, Hadfield, GlossopSK09C03/06/20061Adultvc57_danes_bc_data
Mercaston Marsh, Mercaston, BrailsfordSK24R17/06/20061Adultvc57_danes_bc_data
Robin Wood (centre area track), TicknallSK32M23/06/20062Adultvc57_danes_bc_data
Spinney Hill,MelbourneSK32X11/06/20061Adultvc57_danes_bc_data
Newshaw Lane, Hadfield, GlossopSK09C03/06/20061Adultvc57_danes_bc_data
Calke Park (Church gardens area), TicknallSK32R26/05/20061Adultvc57_danes_bc_data
Spinney Hill,MelbourneSK32X11/05/20061Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R26/05/20061Adultvc57_danes_bc_data
Edgecote Drive,Newhall,SwadlincoteSK22V13/06/20051Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S04/06/20041Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R07/06/20041Adultvc57_danes_bc_data
Church St,Holloway,MatlockSK35I07/06/20041Adultvc57_danes_bc_data
FOREMARK RESERVOIRSK32G25/05/20041adultvc57_irecords_extract
Newboundmill Lane,PleasleySK56C19/05/20041Adultvc57_danes_bc_data
Carvers Rocks, Hartshorne, SwadlincoteSK32G25/05/20041Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A17/05/20041Adultvc57_danes_bc_data
St Charles Close, HadfieldSK09D01/06/20031Adultvc57_danes_bc_data
Mercaston Marsh Zone , Mercaston, BrailsfordSK24R11/06/20031Adultvc57_danes_bc_data
St Charles Close, HadfieldSK09D01/06/20031Adultvc57_danes_bc_data
Mercaston Marsh Zone , Mercaston, BrailsfordSK24R11/06/20031Adultvc57_danes_bc_data
St Charles Close, HadfieldSK09D15/05/20031Adultvc57_danes_bc_data
St Charles Close, HadfieldSK09D15/05/20031Adultvc57_danes_bc_data
Springfield Ave, SandiacreSK43S03/06/19932Adultvc57_danes_bc_data
Parkway, New MillsSK08D10/06/19931Adultvc57_danes_bc_data
Parkway, New MillsSK08D15/06/19931Adultvc57_danes_bc_data
Springfield Ave, SandiacreSK43S01/06/19934Adultvc57_danes_bc_data
Parkway, New MillsSK08D09/06/19931Adultvc57_danes_bc_data
Springfield Ave, SandiacreSK43S22/05/19934Adultvc57_danes_bc_data
Parkway, New MillsSK08D25/06/19911Adultvc57_danes_bc_data
Parkway, New MillsSK08D03/05/19901Adultvc57_danes_bc_data
Dovedale (stepping stones)SK15K12/06/19861Adultvc57_danes_bc_data
Parkway, New MillsSK08D16/06/19861Adultvc57_danes_bc_data
Parkway, New MillsSK08D17/06/19861Adultvc57_danes_bc_data
Parkway, New MillsSK08D27/06/19861Adultvc57_danes_bc_data
Upper Booth, EdaleSK08X03/06/19801Adultvc57_danes_bc_data
Upper Booth, EdaleSK08X17/05/19801Adultvc57_danes_bc_data
Carvers Rocks NR,Hartshorne,SwadlincoteSK32G14/05/19794Adultvc57_danes_bc_data
Cromford (Canal) (site not precise)SK35C02/03/19748Pupaevc57_danes_bc_data
Whitsprings, Hall Dale, Darley DaleSK26X03/03/19741Pupaevc57_danes_bc_data
Cromford (Canal) (site not precise)SK35C02/03/19748Pupaevc57_danes_bc_data
Atlow Mill, Derbs.SK24J15/02/19731Larvavc57_irecords_extract
Berry St, Hepthorne Lane, North WingfieldSK46C04/06/19681Adultvc57_danes_bc_data
Berry St, Hepthorne Lane, North WingfieldSK46C29/05/19671Adultvc57_danes_bc_data
Newbold Rd, ChesterfieldSK37R12/06/19631Adultvc57_danes_bc_data
Newbold Ave, ChesterfieldSK37R05/06/19601Adultvc57_danes_bc_data
Manners Wood,BakewellSK26J04/06/19601Adultvc57_danes_bc_data
Moorend, Beeley, MatlockSK26T25/05/19601Adultvc57_danes_bc_data
Moorend, Beeley, MatlockSK26T15/05/19601Adultvc57_danes_bc_data
Moorend, Beeley, MatlockSK26T26/05/19601Adultvc57_danes_bc_data
Moorend, BeeleySK26T25/05/19601Adultvc57_danes_bc_data
Moorend, BeeleySK26T26/05/19601Adultvc57_danes_bc_data
Moorend, BeeleySK26T15/05/19601Adultvc57_danes_bc_data
Moorend, Beeley, MatlockSK26T22/05/19591Adultvc57_danes_bc_data
Moorend, Beeley, MatlockSK26T28/05/19591Adultvc57_danes_bc_data
Moorend, BeeleySK26T28/05/19591Adultvc57_danes_bc_data
Moorend, BeeleySK26T22/05/19591Adultvc57_danes_bc_data

July Highflyer       Ruddy Highflyer

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