Red Twin-spot Carpet       Dark-barred Twin-spot Carpet
70.051X  –  Geometridae –  Larrentiinae – Xanthorhoe spadicearia/ferrugata – Red/Dark-barred Twin-spot Carpet 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   >>  Geometridae  >> Larrentiinae
** This page is to record aggregated records only – see individual species pages for additional information. **
ID Difficulty:  Red – difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.
Confusion Species: Dark-barred Twin-spot Carpet – Xanthorhoe ferrugata; Red Twin-sport Carpet – Xanthorhoe spadicearia
ID pointers: For many years, it was thought the way to separate Dark-barred Twin-spot Carpet from Red Twin-spot Carpet was to look for a distinct ‘notch’ in the whitish line on the inner edge of the dark central band. However, this has recently been proven to be unreliable as a determining factor. Red Twin-spot Carpet tends to have more distinct whitish bands either side of the central dark band, but the different forms of both species make this a difficult pair to separate visually. For further details see the separate species pages
Distribution:  Both species are uncommon across the recording area – See separate species pages for further details
Flight Period: May /  June /  July /  August /  Moth Activity: Nocturnal   – and is attracted to light Photographed: No –  Photographed By: Not Recorded
*** Last updated on 5 May 2025 by RP ***
Wingspan: 12-13mm
Last Recorded By – Not Recorded
Last Recorded General Area – Not Recorded
IMAGES BELOW:  

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Distribution Map for Xanthorhoe spadicearia/ferrugata

Found 35 records
    ↳ 1 from After 2025
    ↳ 29 from 2020 - 2024
    ↳ 5 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 - No LSID found for: Xanthorhoe spadicearia/ferrugata
This moth may be an aggregate and as such no specific records of distribution exist.


Monthly Records By Year: Xanthorhoe spadicearia/ferrugata
( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Xanthorhoe spadicearia/ferrugata
( data is based on 'Adult' stage records only. )


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


CUSUM Analysis: Xanthorhoe spadicearia/ferrugata
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 18 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 2018, reaching above average levels. The lowest population point occurred near 2013, 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: Xanthorhoe spadicearia/ferrugata
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Xanthorhoe spadicearia/ferrugata
( 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 - Xanthorhoe spadicearia/ferrugata – 35 records available

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

TaxonSite NameTetradYearDateCountStageSource
Xanthorhoe spadicearia/ferrugataFroggatt, Hope ValleySK27N202521/07/20251adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataupper cromford gardenSK25Y202403/08/20242adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataupper cromford gardenSK25Y202411/08/20242adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataupper cromford gardenSK25Y202412/08/20241adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataPark Head, Crich.SK35M202404/08/20241adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataDarley BridgeSK26Q202403/08/20241Adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataDarley BridgeSK26Q202409/08/20241Adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataDarley BridgeSK26Q202411/07/20241Adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataBelperSK34N202417/07/20241adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataupper cromford gardenSK25Y202420/07/20241adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataupper cromford gardenSK25Y202425/07/20241adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataupper cromford gardenSK25Y202429/07/20241adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataLower Cromford GardenSK25Y202429/07/20241adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataupper cromford gardenSK25Y202430/07/20242adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataLower Cromford GardenSK25Y202430/07/20243adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataupper cromford gardenSK25Y202431/07/20243adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataDarley BridgeSK26Q202431/07/20241Adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataupper cromford gardenSK25Y202406/05/20241adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataLower Cromford GardenSK25Y202408/05/20241adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataupper cromford gardenSK25Y202411/05/20242adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataHartington, DerbyshireSK16K202416/05/20241adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataMickley, DerbyshireSK35Z202408/05/20241adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataLadycroft Ave, BuxtonSK07S202418/05/20241adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataLower Cromford GardenSK25Y202303/08/20231adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataLower Cromford GardenSK25Y202309/08/20231adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataMiddleton by WirksworthSK25T202330/07/20231adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataLower Cromford GardenSK25Y202327/07/20231adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataLower Cromford GardenSK25Y202328/07/20231adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataLower Cromford GardenSK25Y202330/07/20231adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataFindern, Derbyshire, DEAZSK33A202120/08/20211adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataJim Mart Nature ReserveSK36S201814/07/20181adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataJim Mart Nature ReserveSK36S201814/07/20182adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataJim Mart Nature ReserveSK36S201422/07/20142Adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataStretton Handley School - Beresford LnSK36Q201314/08/20131Adultvc57_irecords_extract
Xanthorhoe spadicearia/ferrugataPress Ln, Ashover, DerbyshireSK36S201226/05/20121Adultvc57_irecords_extract

Red Twin-spot Carpet       Dark-barred Twin-spot Carpet

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