70.015 BF1712  –  Geometridae –  Sterrhinae – Idaea emarginata – Small Scallop – (Linnaeus, 1758) Adult Macro:  CAT 2 – Can be confused with other species – Good photographs maybe required – Can be confused with other species       PDF Icon – click for Adult Macro Verification Guidelines
Verification Notes: Last recorded in VC57 in 2019 – CAT set to CAT2 photos required

Green –  Rare / Uncommon / Scarce   
Taxonomy:   Macro   >>  Geometridae  >> Sterrhinae
** Photograph required **
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
ID pointers: Fairly distinctive looking moth. Scalloped trailing edges to the wings and overall golden brown ground colour, with two dark-brown wavy cross-lines running through both wings.
Distribution:  (Last record: 22 July 2019 at Long Eaton )  –  A resident in Derbyshire, that is scarce and very locally distributed through the Trent Valley area. Very few records.
General Comment: None
Flight Period: July /  August –  On the wing – July – August. Moth Activity: Nocturnal   – but can be disturbed during the day Photographed: No –  Photographed By: Not Recorded
*** Last updated on 15 January 2026 by TD ***
Wingspan: 22-25mm
Forewing: 11-13mm
Food Plant: Bedstraws and Field Bindweed.
Last Recorded Year: 2019
Last Recorded By – Marion Bryce
Last Recorded General Area – Long Eaton

Selected Images:  No images



 

Distribution Map for Idaea emarginata

Found 31 records
    ↳ from 2026+
    ↳ from 2020 - 2025
    ↳ 31 from Before 2020
Flying
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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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 – Idaea emarginata

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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.

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Monthly Records By Year: Idaea emarginata
( data includes both Larvae and Adult Stages )
No data returned from the database.

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


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

Hectad (10kmx10km) Coverage: Idaea emarginata
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Idaea emarginata
( 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 2020-2026.

Records Behind the Map and Charts - Idaea emarginata – 31 records available

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

Site NameTetradDateCountStageSource
Forbes HoleSK43W22/07/20191adultvc57_irecords_extract
Wilmot St,Long EatonSK43R10/07/20101Adultvc57_danes_bc_data
Armitage Drive, Long EatonSK53B25/07/20031Adultvc57_danes_bc_data
Armitage Drive, Long EatonSK53B10/07/20021Adultvc57_danes_bc_data
Springfield Ave, SandiacreSK43S16/07/19921Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F01/08/19842Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F01/08/19842Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F30/07/19841Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F30/07/19841Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F21/07/19841Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F21/07/19841Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F26/07/19831Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F26/07/19831Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F18/07/19831Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F18/07/19831Adultvc57_danes_bc_data
Wilmot St, Sawley, Long EatonSK43R16/07/19822Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F14/07/19821Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F14/07/19821Adultvc57_danes_bc_data
Askew Grove, ReptonSK32D13/07/19821Adultvc57_danes_bc_data
Hilton NR, Hilton, Burton on TrentSK23K09/07/19823Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F12/08/19811Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F12/08/19811Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F04/08/19811Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F04/08/19811Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F12/07/19732Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F11/07/19731Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F10/07/19732Adultvc57_danes_bc_data
Shardlow Hall, Shardlow, Long EatonSK43F11/07/19671Adultvc57_danes_bc_data
Barrow on Trent, Derby (site not precise)SK32P01/01/18851Adultvc57_danes_bc_data
Barrow on Trent, Derby (site not precise)SK32P01/01/18851Adultvc57_danes_bc_data
Repton (site not precise)SK32B01/01/18001Adultvc57_danes_bc_data

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