70.072 BF1744  –  Geometridae –  Larentiinae – Entephria caesiata – Grey Mountain 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  >> Larentiinae
** Photograph required **
ID Difficulty:  green  – easy to identify, generally distinctive and unlikely to be confused with other species.
ID pointers: Melanistic specimens form a large proportion of the local population. The size, flight season, habitat and its habit of resting on vertical rock surfaces by day all help to identify this upland species.
Distribution:  Widely distributed on the upland moors of Derbyshire, where it is said to be locally fairly common.
Flight Period: June /  July /  August /  –  June – August Photographed: No –  Photographed By: Not Recorded
*** Last updated on 2 October 2025 by RP ***
Last Recorded By – Not Recorded
Last Recorded General Area – Not Recorded

Selected Images:  No images



Distribution Map for Entephria caesiata

Found 42 records
    ↳ 0 from After 2025
    ↳ 0 from 2020 - 2024
    ↳ 42 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 – Entephria caesiata

⚠️ 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: Entephria caesiata
( data includes both Larvae and Adult Stages )
No data returned from the database.

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


First/Last Recorded Dates: Entephria caesiata
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: Entephria caesiata
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Entephria caesiata
AGR: -38.52%   |   Total % Change: -85.7%


CUSUM Analysis: Entephria caesiata
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 24 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 2001, reaching above average levels. The lowest population point occurred near 2005, 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: Entephria caesiata
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Entephria caesiata
( 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 - Entephria caesiata – 42 records available

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

Site NameTetradDateCountStageSource
Alport Dale, nr Ladybower ResrSK18P03/07/20051Adultvc57_danes_bc_data
Beeley Moor, BeeleySK26Y25/06/20017Adultvc57_danes_bc_data
Beeley Moor, BeeleySK26Y25/06/20017Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precies)SK26Y15/06/199910Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precise)SK26Y15/06/199910Adultvc57_danes_bc_data
Ladycroft Ave, BuxtonSK07S03/07/19931Adultvc57_danes_bc_data
Woodlands, Combs, Chapel en le FrithSK07P03/08/19901Adultvc57_danes_bc_data
Woodlands, Combs, Chapel en le FrithSK07P01/07/19901Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precies)SK26Z18/05/19901Larvaevc57_danes_bc_data
Beeley Moor, Beeley (site not precise)SK26Z18/05/19901Larvaevc57_danes_bc_data
Parkway, New MillsSK08D20/06/19891Adultvc57_danes_bc_data
Chunal Moor, GlossopSK09F04/07/198810Adultvc57_danes_bc_data
Johnnygate, Barlow, ChesterfieldSK37C16/07/19881Adultvc57_danes_bc_data
Johnnygate, Barlow, ChesterfieldSK37C16/07/19881Adultvc57_danes_bc_data
Chunal Moor, GlossopSK09F25/06/19885Adultvc57_danes_bc_data
Parkway, New MillsSK08D05/07/19871Adultvc57_danes_bc_data
Yarncliff Quarry, Upper PedleySK27P03/07/19871Adultvc57_danes_bc_data
Yarncliff Quarry, Upper PadleySK27P03/07/19871Adultvc57_danes_bc_data
Beeley Lodge, ChatsworthSK26U07/07/19821Adultvc57_danes_bc_data
Beeley Lodge, ChatsworthSK26U21/07/19821Adultvc57_danes_bc_data
Beeley Lodge, Chatsworth ParkSK26U21/07/19821Adultvc57_danes_bc_data
Beeley Lodge, Chatsworth ParkSK26U07/07/19821Adultvc57_danes_bc_data
Snake Pass, GlossopSK09W14/08/19811Adultvc57_danes_bc_data
Upper Booth, EdaleSK08X07/07/19801Adultvc57_danes_bc_data
Upper Booth, EdaleSK08X30/07/19801Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precies)SK26Z09/05/19751Larvaevc57_danes_bc_data
Wolds Rise, Cavendish Rd, MatlockSK36A11/07/19711Adultvc57_danes_bc_data
Wolds Rise, Cavendish Rd, MatlockSK36A11/07/19711Adultvc57_danes_bc_data
Wragg's Quarry, Beeley MoorSK26Y04/05/19712Larvaevc57_danes_bc_data
Wragg's Quarry, Beeley Moor, BeeleySK26Y04/05/19712Larvaevc57_danes_bc_data
Slagmill Plantation,Beeley MoorSK36E03/07/19651Adultvc57_danes_bc_data
Hollingworth Clough, Hayfield (site not precise)SK08P20/06/196415Adultvc57_danes_bc_data
Hollingworth Clough, Hayfield (site not precise)SK08P08/06/196410Adultvc57_danes_bc_data
Hollingworth Clough, Hayfield (site not precise)SK08P10/06/196415Adultvc57_danes_bc_data
Hollingworth Clough, Hayfield (site not precise)SK08P16/06/196430Adultvc57_danes_bc_data
Slagmill Plantation (moor opposite), Beeley MoorSK36E18/06/19601Adultvc57_danes_bc_data
The Croft, Pig Lane, Beeley, MatlockSK26T05/07/19581Adultvc57_danes_bc_data
The Croft, Pig Lane, BeeleySK26T05/07/19581Adultvc57_danes_bc_data
Beeley, BakewellSK26T11/08/19571Adultvc57_danes_bc_data
BeeleySK26T11/08/19571Adultvc57_danes_bc_data
Beeley Plantation, Bakewell (site not precise)SK26T30/06/19561Adultvc57_danes_bc_data
Beeley Plantation, Beeley (site not precise)SK26T30/06/19561Adultvc57_danes_bc_data

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