70.083 BF1771a  –  Geometridae –  Larentiinae – Thera cupressata – Cypress Carpet – (Geyer, 1831) Adult Macro:  CAT 2 – Can be confused with other species – Can be confused with other species       PDF Icon – click for Adult Macro Verification Guidelines

Brown –  Significant Record / Very Rare / Vagrant        orange – Migrant
Taxonomy:   Macro   >>  Geometridae  >> Larentiinae
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Juniper Carpet
ID pointers: Identified from related species by a more streaky appearance with an incomplete central band. Grey-brown base colour with longitudinal streaks extending from the discal area to the apex of the forewing.
Distribution:  (First record: 26 June 2020 at Long Eaton )  –  (Last record: 3 May 2025 at Kings Newton )  –  Last recorded June 2020 – No previous records. The first county record, of this resident (recent colonist) and suspected immigrant in Britain, was trapped by Paul Buxton in his Long Eaton garden on 26th June 2020. This specimen, was possibly an import from a nearby garden centre or plant nursery?  A second record was from Peter Hendry, when he recorded one on 1st July 2020 from his Hilton garden. This moth remains a rare species in the county. The 3rd county record was from Kings Newton on 3rd May 2025
Flight Period: June /  July /  October /  November /  –  On the wing late June – July and second generation October – November. Moth Activity: Nocturnal   – and is attracted to light Photographed: Yes –  Photographed By: Peter Hendry, Paul Buxton, Will Soar  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 26-29mm
Forewing: 12-15mm
Food Plant: Monterey cypress and Leyland cypress.
Last Recorded Year: 2025
First Recorded Year: 2020
Last Recorded By – Will Soar
Last Recorded General Area – Kings Newton

Selected Images:  1st Image by Peter Hendry © / 2nd Image – Long Eaton by Paul Buxton © / Kings Newton 3rd May 2025 – Will Soar©



Distribution Map for Thera cupressata

Found 3 records
    ↳ 1 from After 2025
    ↳ 2 from 2020 - 2024
    ↳ 0 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 – Thera cupressata

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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: Thera cupressata
( data includes both Larvae and Adult Stages )

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


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


CUSUM Analysis: Thera cupressata
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 2025, reaching above average levels. The lowest population point occurred near 2020, 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: Thera cupressata
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Thera cupressata
( 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 - Thera cupressata – 3 records available

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

Site NameTetradDateCountStageSource
King's NewtonSK32Y03/05/20251adultvc57_irecords_extract
HiltonSK23F01/07/20201adultvc57_irecords_extract
Long eaton gardenSK43S26/06/20201adultvc57_irecords_extract

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