71.006 BF1996  –  Notodontidae –  Notodontinae – Furcula bicuspis – Alder Kitten – (Borkhausen, 1790) Adult Macro:  CAT 2 – Can be confused with other species – Can be confused with other species       PDF Icon – click for Adult Macro Verification Guidelines

Green –  Rare / Uncommon / Scarce   
Taxonomy:   Macro   >>  Notodontidae  >> Notodontinae
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
ID pointers: Told from the other Kittens by the central cross-band and lines on the forewing which are a rich blackish-grey. The cross-band being “pinched in” at the leading edge.
Distribution:  A resident species that is uncommon but well established in some areas of Derbyshire. Recorded each year in small numbers. It is scarce in the lowlands but has been recorded from the south of the county.
Flight Period: May /  June /  –  On the wing May – June Moth Activity: Nocturnal   – and is attracted to light Photographed: Yes –  Photographed By: Tony Davison, Dave Evans  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 30-35mm
Forewing: 16-19mm
Food Plant: Birch (Betula) as well as alder (Alnus glutinosa).
Last Recorded By – Not Recorded
Last Recorded General Area – Not Recorded

Selected Images:  Kings Newton – Tony Davison © / Belper (2024) Dave Evans©



Distribution Map for Furcula bicuspis

Found 212 records
    ↳ 20 from After 2025
    ↳ 29 from 2020 - 2024
    ↳ 163 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 – Furcula bicuspis

⚠️ 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: Furcula bicuspis
( data includes both Larvae and Adult Stages )

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


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


CUSUM Analysis: Furcula bicuspis
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 1 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 2004, reaching above average levels. The lowest population point occurred near 2023, 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: Furcula bicuspis
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Furcula bicuspis
( 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 - Furcula bicuspis – 212 records available

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

Site NameTetradDateCountStageSource
Allestree, DerbySK33P22/07/20251adultvc57_irecords_extract
Belper, DerbyshireSK34N11/07/20251adultvc57_irecords_extract
Markham Vale DerbyshireSK47K11/05/20251adultvc57_irecords_extract
Markham Vale Enviroment CentreSK47K11/05/20251adultvc57_irecords_extract
Bamford, Hope Valley SBE, UKSK28B21/05/20251Adultvc57_irecords_extract
Bamford, Hope Valley SBE, UKSK28B30/05/20251Adultvc57_irecords_extract
Melbourne, DerbyshireSK32X30/05/20251adultvc57_irecords_extract
BelperSK34N29/05/20251adultvc57_irecords_extract
Findern, DerbyshireSK33A23/05/20251adultvc57_irecords_extract
Bamford, Hope Valley SBE, UKSK28B12/05/20251Adultvc57_irecords_extract
Bamford, Hope Valley SBE, UKSK28B13/05/20251Adultvc57_irecords_extract
Glossop, Gnat Hole Rough FieldsSK09L13/05/20251adultvc57_irecords_extract
Norton Lees, SheffieldSK38L11/04/20251adultvc57_irecords_extract
Allestree, DerbySK33P12/04/20251adultvc57_irecords_extract
BelperSK34U26/04/20251adultvc57_irecords_extract
My gardenSK36U30/04/20251adultvc57_irecords_extract
MellorSJ98Z29/04/20251adultvc57_irecords_extract
Park Head, Crich.SK35M27/04/20251adultvc57_irecords_extract
Belper, DerbyshireSK34N26/04/20251adultvc57_irecords_extract
Belper, DerbyshireSK34N29/04/20251adultvc57_irecords_extract
BelperSK34N02/05/20241adultvc57_irecords_extract
Allestree, DerbySK33P08/05/20241adultvc57_irecords_extract
Allestree, DerbySK33P06/05/20241adultvc57_irecords_extract
Ninelands RoadSK28F17/05/20241adultvc57_irecords_extract
Chaddesden, DerbySK33T13/05/20242adultvc57_irecords_extract
Allestree, DerbySK33P07/05/20241adultvc57_irecords_extract
Allestree, DerbySK33P08/05/20241adultvc57_irecords_extract
Rosliston Forestry Centre, Swadlincote, Derbys.SK21N17/05/20241adultvc57_irecords_extract
Staunton Harold Reservoir, DerbyshireSK32S15/08/20231adultvc57_irecords_extract
Ninelands RoadSK28F10/06/20231adultvc57_irecords_extract
Ladycroft AveSK07S07/05/20231adultvc57_irecords_extract
Peak District National Park, Hope Valley, England, GBSK28B11/06/20211Adultvc57_irecords_extract
Ninelands RoadSK28F13/06/20211adultvc57_irecords_extract
Ninelands RoadSK28F08/06/20211adultvc57_irecords_extract
Ninelands RoadSK28F04/06/20211adultvc57_irecords_extract
Birch ValeSK08I06/06/20211Adultvc57_irecords_extract
Station Road, Darley DaleSK26R05/06/20211adultvc57_irecords_extract
Hathersage, Derbyshire, UKSK28F31/05/20211adultvc57_irecords_extract
HathersageSK28F13/06/20201adultvc57_irecords_extract
Birch ValeSK08I25/05/20201adultvc57_irecords_extract
Birch ValeSK08I29/05/20201adultvc57_irecords_extract
Birch ValeSK08I20/05/20201adultvc57_irecords_extract
Birch ValeSK08I20/05/20201adultvc57_irecords_extract
Birch ValeSK08I28/05/20201adultvc57_irecords_extract
HathersageSK28F19/05/20201adultvc57_irecords_extract
upper cromford gardenSK25Y10/05/20201adultvc57_irecords_extract
Highfield Drive, MatlockSK36A21/05/20202adultDanes_2019-2021
Salisbury Drive, Midway, SwadlincoteSK32A10/05/20201adultDanes_2019-2021
Highfield Drive, MatlockSK36A08/05/20201adultDanes_2019-2021
Hathersage, Derbyshire, UKSK28F01/06/20191adultvc57_irecords_extract
Hathersage, Derbyshire, UKSK28F25/06/20191adultvc57_irecords_extract
Birch ValeSK08I03/06/20191adultvc57_irecords_extract
BelperSK34U25/06/20191adultvc57_irecords_extract
Birch ValeSK08I14/05/20191adultvc57_irecords_extract
Birch ValeSK08I19/05/20191adultvc57_irecords_extract
Birch ValeSK08I01/06/20181adultvc57_irecords_extract
Pleasley Pit CP, PleasleySK46X14/08/20171Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X24/05/20171Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X26/05/20171Adultvc57_danes_bc_data
Norton Lees gardenSK38L11/06/20161adultvc57_irecords_extract
Woodville GardenSK31E19/06/20161Adultvc57_irecords_extract
Norton Lees gardenSK38L11/06/20161not recordedvc57_irecords_extract
Sheffield, England, United KingdomSK38L12/06/20161Adultvc57_irecords_extract
Hillside, Findern, DerbySK33A09/06/20161Adultvc57_danes_bc_data
Welbeck Drive, WingerworthSK36T29/05/20161Adultvc57_danes_bc_data
Welbeck Drive, WingerworthSK36T18/05/20161Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X13/06/20151Adultvc57_danes_bc_data
Ladycroft AveSK07S13/06/20141adultvc57_irecords_extract
Ladycroft AveSK07S31/05/20141adultvc57_irecords_extract
Princes Rd, ChinleySK08L16/05/20141Adultvc57_danes_bc_data
Princes Rd, ChinleySK08L16/05/20141Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X28/07/20131Adultvc57_danes_bc_data
Duffield Rd, Allestree, DerbySK34K18/06/20131Adultvc57_danes_bc_data
The Old Manse, Ault Hucknall, GlapwellSK46S18/06/20131Adultvc57_danes_bc_data
Macclesfield Rd, Whaley BridgeSK08A14/06/20131Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X19/06/20131Adultvc57_danes_bc_data
Pleasley Pit CP, PleasleySK46X17/06/20131Adultvc57_danes_bc_data
Duffield Rd, Allestree, DerbySK34K18/06/20131Adultvc57_danes_bc_data
The Old Manse, Ault Hucknall, GlapwellSK46S18/06/20131Adultvc57_danes_bc_data
George St,BelperSK34N01/06/20131Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A18/08/20121Adultvc57_danes_bc_data
Upper Moor,MatlockSK36C02/06/20112Adultvc57_danes_bc_data
Cross Green Cottages,Flint Lane,South DarleySK26Q26/06/20111Adultvc57_danes_bc_data
Miller's Dale,TideswellSK17L12/05/20111Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R10/05/20111Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R29/05/20112Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R22/04/20111Adultvc57_danes_bc_data
Buxton SK, UKSK07S12/06/20101Adultvc57_irecords_extract
Ladycroft Ave,BuxtonSK07S11/06/20101Adultvc57_danes_bc_data
Markeaton Park,DerbySK33I05/06/20101Adultvc57_danes_bc_data
Millstone Edge,HathersageSK28K04/06/20101Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R02/06/20101Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R05/06/20102Adultvc57_danes_bc_data
Ladycroft Ave, BuxtonSK07S11/06/20101Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R22/05/20101Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R20/05/20101Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S23/05/20101Adultvc57_danes_bc_data
Dovedale (Staffs side)SK15K01/06/20091Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R15/06/20091Adultvc57_danes_bc_data
DovedaleSK15K14/06/20091Adultvc57_danes_bc_data
Carsington Resr (Rangers' Base)SK25K01/06/20091Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R19/06/20091Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R27/06/20091Adultvc57_danes_bc_data
Newboundmill Lane,PleasleySK56C22/05/20091Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R28/05/20091Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R28/05/20091Adultvc57_danes_bc_data
Wheeldon Av,BelperSK34N28/05/20091Adultvc57_danes_bc_data
Millstone Edge,HathersageSK28K06/06/20081Adultvc57_danes_bc_data
Littlewood,Barber Booth,EdaleSK18C09/06/20071Adultvc57_danes_bc_data
Littlewood,Barber Booth,EdaleSK18C12/06/20071Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S03/06/20071Adultvc57_danes_bc_data
Littlewood,Barber Booth,EdaleSK18C04/06/20071Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R09/06/20071Adultvc57_danes_bc_data
Ault Hucknall,GlapwellSK46S23/05/20071Adultvc57_danes_bc_data
Newboundmill Lane,PleasleySK56C06/06/20061Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R08/06/20062Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R17/06/20061Adultvc57_danes_bc_data
Cross Green Cottages,Flint Lane,South DarleySK26Q11/05/20061Adultvc57_danes_bc_data
Calke Park (Church gardens area), TicknallSK32R26/05/20061Adultvc57_danes_bc_data
Lowes Hill,RipleySK35V26/05/20061Adultvc57_danes_bc_data
Carsington Resr (Rangers' Base)SK25K08/07/20051Adultvc57_danes_bc_data
Newboundmill Lane,PleasleySK56C22/06/20051Adultvc57_danes_bc_data
Calke Park (Church gardens area), TicknallSK32R27/05/20051Adultvc57_danes_bc_data
Rosliston (National Forest Centre), SwadlincoteSK21N06/08/20042Adultvc57_danes_bc_data
Toyota Site, BurnastonSK23V28/07/20041Adultvc57_irecords_extract
Burnaston (Toyota Plant NR), DerbySK23V28/07/20041Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R04/06/20041Adultvc57_danes_bc_data
Edale (YHA)SK18N05/06/20041Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R05/06/20042Adultvc57_danes_bc_data
Newboundmill Lane,PleasleySK56C07/06/20041Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R08/06/20041Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R08/06/20041Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R04/06/20041Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R05/06/20042Adultvc57_danes_bc_data
Melbourne, DerbyshireSK32X19/05/20041adultvc57_irecords_extract
South WoodSK32Q02/05/20041Adultvc57_irecords_extract
School Close,Parkway Gardens,Darley DaleSK26R17/05/20041Adultvc57_danes_bc_data
Cross Green Cottages,Flint Lane,South DarleySK26Q31/05/20041Adultvc57_danes_bc_data
Spinney Hill,MelbourneSK32X20/05/20041Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R17/05/20041Adultvc57_danes_bc_data
Main Street, Kings NewtonSK32Y31/05/20031Adultvc57_irecords_extract
Spinney Hill,MelbourneSK32X31/05/20031Adultvc57_danes_bc_data
Main St,Kings Newton,MelbourneSK32Y31/05/20031Adultvc57_danes_bc_data
The Mays,Malthouse Lane,FroggattSK27N27/05/20033Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A27/05/20031Adultvc57_danes_bc_data
The Mays,Malthouse Lane,FroggattSK27N27/05/20033Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R02/06/20021Adultvc57_danes_bc_data
Beeley Moor (Flash Lane) (site not precise)SK26X15/05/20021Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R16/05/20021Adultvc57_danes_bc_data
Beeley Moor (Flash Lane) (site not precise)SK26X16/05/20021Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R13/08/20011Adultvc57_danes_bc_data
Far Cross,Cavendish Park,MatlockSK36A02/06/20011Adultvc57_danes_bc_data
Clough Wood,Darley DaleSK26K05/06/20011Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R19/06/20011Adultvc57_danes_bc_data
Far Cross,Cavendish Park,MatlockSK36A26/06/20011Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R09/05/20001Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R19/05/20001Adultvc57_danes_bc_data
School Close,Parkway Gardens,Darley DaleSK26R29/05/19991Adultvc57_danes_bc_data
The Field,Shipley,IlkestonSK44M13/05/19981Adultvc57_danes_bc_data
Stocksmoor Farm, Ashover Rd, Old TuptonSK36S29/05/19971Adultvc57_danes_bc_data
Beeley Moor (Flash Lane) (site not precise)SK26X18/05/19973Adultvc57_danes_bc_data
Clough Wood,Darley Dale (site not precise)SK26K25/05/19974Adultvc57_danes_bc_data
Cross Green Cottages,Flint Lane,South DarleySK26Q13/06/19941Adultvc57_danes_bc_data
Fernhill Rd, MellorSJ98U24/05/19931Adultvc57_danes_bc_data
Darley Forest, BeeleySK26Y25/05/19925Adultvc57_danes_bc_data
Far Cross,Cavendish Park,MatlockSK36A25/05/19921Adultvc57_danes_bc_data
Parkway, New MillsSK08D21/06/19911Adultvc57_danes_bc_data
Johnnygate, Barlow, ChesterfieldSK37C12/05/19901Adultvc57_danes_bc_data
Parkway, New MillsSK08D13/05/19901Adultvc57_danes_bc_data
Johnnygate, Barlow, ChesterfieldSK37C31/05/19901Adultvc57_danes_bc_data
Johnnygate, Barlow, ChesterfieldSK37C31/05/19901Adultvc57_danes_bc_data
Johnnygate, Barlow, ChesterfieldSK37C12/05/19901Adultvc57_danes_bc_data
Clough Wood,Darley DaleSK26K10/06/19892Adultvc57_danes_bc_data
Parkway, New MillsSK08D22/05/19891Adultvc57_danes_bc_data
Parkway, New MillsSK08D21/05/19891Adultvc57_danes_bc_data
Back Lane,GlapwellSK46T16/06/19861Adultvc57_danes_bc_data
Back Lane, GlapwellSK46T16/06/19861Adultvc57_danes_bc_data
Dovedale (site not precise)SK15K15/06/19841Adultvc57_danes_bc_data
Matlock (Teacher Training College)SK36A10/07/19831Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precies)SK26Z03/06/19831Adultvc57_danes_bc_data
Ambergate (site not precise)SK35L17/06/19832Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precies)SK26Z03/06/19831Adultvc57_danes_bc_data
Beeley Lodge, ChatsworthSK26U01/06/19821Adultvc57_danes_bc_data
Threepieces, Veron Lane, Kelstedge, AshoverSK36G01/06/19821Adultvc57_danes_bc_data
Carsington Ave, Allestree, DerbySK33J01/06/19821Adultvc57_danes_bc_data
Carsington Ave, Allestree, DerbySK33J01/06/19821Adultvc57_danes_bc_data
Beeley Lodge, Chatsworth ParkSK26U01/06/19821Adultvc57_danes_bc_data
Crich Chase, Ambergate (site not precise)SK35L20/05/19822Adultvc57_danes_bc_data
Askew Grove, ReptonSK32D29/06/19811Adultvc57_danes_bc_data
Threepieces, Veron Lane, Kelstedge, AshoverSK36G10/06/19802Adultvc57_danes_bc_data
Threepieces, Veron Lane, Kelstedge, AshoverSK36G30/05/19801Adultvc57_danes_bc_data
Carvers Rocks, Hartshorne, SwadlincoteSK32G01/06/19791Adultvc57_danes_bc_data
Carvers Rocks, Hartshorne, SwadlincoteSK32G04/06/19791Adultvc57_danes_bc_data
Askew Grove, ReptonSK32D16/06/19791Adultvc57_danes_bc_data
Carvers Rocks, Hartshorne, SwadlincoteSK32G18/06/19791Adultvc57_danes_bc_data
Wolds Rise, Cavendish Rd, MatlockSK36A19/06/19791Adultvc57_danes_bc_data
Threepieces, Veron Lane, Kelstedge, AshoverSK36G19/06/19792Adultvc57_danes_bc_data
Askew Grove, ReptonSK32D02/06/19781Adultvc57_danes_bc_data
Crich Chase, Ambergate (site not precise)SK35L01/07/19771Adultvc57_danes_bc_data
Askew Grove, ReptonSK32D01/06/19771Adultvc57_danes_bc_data
Wolds Rise, Cavendish Rd, MatlockSK36A03/06/19772Adultvc57_danes_bc_data
Clough Wood,Darley DaleSK26K24/06/19771Adultvc57_danes_bc_data
Wolds Rise, Cavendish Rd, MatlockSK36A03/06/19772Adultvc57_danes_bc_data
Wolds Rise, Cavendish Rd, MatlockSK36A14/06/19761Adultvc57_danes_bc_data
Wolds Rise, Cavendish Rd, MatlockSK36A14/06/19761Adultvc57_danes_bc_data
Hell Bank Plantation, Beeley MoorSK26Y14/06/19691Adultvc57_danes_bc_data
Wragg's Quarry,Rowsley MoorSK26Y11/06/19681Adultvc57_danes_bc_data
Wragg's Quarry, Beeley Moor, BeeleySK26Y11/06/19681Adultvc57_danes_bc_data
Moorend, Beeley, MatlockSK26T26/05/19601Adultvc57_danes_bc_data
Moorend, BeeleySK26T26/05/19601Adultvc57_danes_bc_data
Moorend, Beeley, MatlockSK26T22/05/19591Adultvc57_danes_bc_data
Moorend, BeeleySK26T22/05/19591Adultvc57_danes_bc_data

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