70.004 BF1699  –  Geometridae –  Sterrhinae – Idaea rusticata – Least Carpet – (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  >> Sterrhinae
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
ID pointers: A small carpet moth and due to the position of the dark brown markings on the forewing, it is fairly distinctive. They form a central band and extend along the leading wing edge to the thorax.
Distribution:  (Last record: 31 July 2024 at Cromford )  –  Probably a new species for Derbyshire – possible immigrant – This specimen found on herbage next to moth trap on the morning of 16th July 2017 in a Sandiacre garden. A species that seems to be very much on the increase and moving northwards from the main populations in southern England. Two trapped in my garden August 2nd-3rd 2020. Recorded each year to 2024.
Flight Period: June /  July /  August /  –  On the wing – July – August.Mainly one generation. Moth Activity: Nocturnal   – and is attracted to light Photographed: Yes –  Photographed By: Ian Viles, Tony Davison  © All Rights Reserved
*** Last updated on 24 June 2025 by TD ***
Forewing: 9-11mm Food Plant: Ivy, Traveller’s-joy.
Last Recorded Year: 2024
Last Recorded By – Clive Ashton
Last Recorded General Area – Cromford

IMAGES BELOW:  Sandiacre, Derbyshire – July 16th 2017 – photo by Ian Viles © – Melbourne, Derbyshire 2nd – 3rd August 2020 – Tony Davison ©

 
 

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Distribution Map for Idaea rusticata

Found 37 records
    ↳ 14 from After 2025
    ↳ 22 from 2020 - 2024
    ↳ 1 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 for – Idaea rusticata

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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: Idaea rusticata
( data includes both Larvae and Adult Stages )

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


First/Last Recorded Dates: Idaea rusticata
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: Idaea rusticata
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Idaea rusticata
AGR: 10.87%   |   Total % Change: 85.7%


CUSUM Analysis: Idaea rusticata
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 19 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 2025, reaching above average levels. The lowest population point occurred near 2024, 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: Idaea rusticata
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Idaea rusticata
( 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 - Idaea rusticata – 37 records available

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

TaxonSite NameTetradYearDateCountStageSource
Idaea rusticataMelbourne, DerbyshireSK32X202501/07/20251adultvc57_irecords_extract
Idaea rusticataFindern, DerbyshireSK33A202504/07/20251adultvc57_irecords_extract
Idaea rusticataBelperSK34U202510/07/20251adultvc57_irecords_extract
Idaea rusticataMidway, Derbys.SK32A202508/07/20251adultvc57_irecords_extract
Idaea rusticataupper cromford gardenSK25Y202514/07/20251adultvc57_irecords_extract
Idaea rusticataMelbourne, DerbyshireSK32X202513/07/20256adultvc57_irecords_extract
Idaea rusticataFindern, DerbyshireSK33A202511/07/20255adultvc57_irecords_extract
Idaea rusticataFindern, DerbyshireSK33A202513/07/20252adultvc57_irecords_extract
Idaea rusticataAston-on-Trent, DerbyshireSK43A202517/07/20251adultvc57_irecords_extract
Idaea rusticataFindern, DerbyshireSK33A202517/07/20253adultvc57_irecords_extract
Idaea rusticataChaddesden, DerbySK33T202503/07/20251adultvc57_irecords_extract
Idaea rusticataChaddesden, DerbySK33T202511/07/20251adultvc57_irecords_extract
Idaea rusticataMidway, Derbys.SK32A202523/06/20251adultvc57_irecords_extract
Idaea rusticataMidway, Derbys.SK32A202530/06/20251adultvc57_irecords_extract
Idaea rusticataSandiacre GardenSK43T202401/08/20241adultvc57_irecords_extract
Idaea rusticataMelbourne, DerbyshireSK32X202419/07/20241adultvc57_irecords_extract
Idaea rusticataSandiacreSK43S202423/07/20241adultvc57_irecords_extract
Idaea rusticataMickleover gardenSK33C202424/07/20241adultvc57_irecords_extract
Idaea rusticataupper cromford gardenSK25Y202430/07/20241adultvc57_irecords_extract
Idaea rusticataupper cromford gardenSK25Y202431/07/20241adultvc57_irecords_extract
Idaea rusticataClover Close, ElvastonSK43B202429/07/20241adultvc57_irecords_extract
Idaea rusticataSandiacre GardenSK43T202430/07/20241adultvc57_irecords_extract
Idaea rusticataKing's NewtonSK32Y202429/07/20241adultvc57_irecords_extract
Idaea rusticataFroggatt, Hope ValleySK27N202309/09/20231adultvc57_irecords_extract
Idaea rusticataFroggatt, Hope ValleySK27N202309/09/20231adultvc57_irecords_extract
Idaea rusticataLong Eaton, Marlborough RoadSK43X202307/07/20231adultvc57_irecords_extract
Idaea rusticataLower Cromford GardenSK25Y202317/07/20231adultvc57_irecords_extract
Idaea rusticataWoodland AveSK43R202219/07/20222Adultvc57_irecords_extract
Idaea rusticataAllestree, DerbySK33P202222/07/20221adultvc57_irecords_extract
Idaea rusticataFindern, Derbyshire, DEAZSK33A202218/07/20221adultvc57_irecords_extract
Idaea rusticataSandiacreSK43T202219/07/20222adultvc57_irecords_extract
Idaea rusticataCrichSK35M202124/07/20211Adultvc57_irecords_extract
Idaea rusticataMelbourne, DerbyshireSK32X202002/08/20202adultvc57_irecords_extract
Idaea rusticataMelbourne, DerbyshireSK32X202007/08/20201adultvc57_irecords_extract
Idaea rusticataMain Street, Kings NewtonSK32Y202014/07/20201Adultvc57_irecords_extract
Idaea rusticataWoodland AveSK43R202030/06/20201adultvc57_irecords_extract
Idaea rusticataHathersage, Derbyshire, UKSK28F201929/07/20191adultvc57_irecords_extract

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