70.015 BF1712 – Small Scallop – Idaea emarginata – (Linnaeus, 1758)
Adult Macro: CAT 2 – Can be confused with other species – Good photographs maybe required – 
– click for Adult Macro Verification Guidelines Verification Notes: Last recorded in VC57 in 2019 – CAT set to CAT2 photos required
– click for Adult Macro Verification Guidelines Verification Notes: Last recorded in VC57 in 2019 – CAT set to CAT2 photos required
– Rare / Uncommon / Scarce
** Photograph required
**
– 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 *** Last updated on 15 January 2026 by TD ***
Forewing: 11-13mm
Last Recorded Year: 2019
Last Recorded By – Marion Bryce
Last Recorded General Area – Long Eaton
Selected Images: No images
Image Gallery
No gallery images found for this moth.
Temporal Distribution Chart
Adults: (between 1967 - 2010)
(click legend below to show/hide datasets)
Distribution Map for Idaea emarginata
Found 30 records
↳ from 2026+
↳ from 2020 - 2025
↳ 30 from Before 2020
↳ from 2026+
↳ from 2020 - 2025
↳ 30 from Before 2020
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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.
Monthly Records By Year:
Idaea emarginata
( data includes both Larvae and Adult Stages )
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
Idaea emarginata
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 – 30 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Recorder | Source | RecordKey |
|---|---|---|---|---|---|---|---|
| Wilmot St,Long Eaton | SK43R | 10/07/2010 | 1 | Adult | B.G. Sewell | vc57_danes_bc_data | LC000334001OKUZP |
| Armitage Drive, Long Eaton | SK53B | 25/07/2003 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OI4NX |
| Armitage Drive, Long Eaton | SK53B | 10/07/2002 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OJ2QX |
| Springfield Ave, Sandiacre | SK43S | 16/07/1992 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OIWDM |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 01/08/1984 | 2 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OIQYR |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 01/08/1984 | 2 | Adult | R.H. Dumelow | vc57_danes_bc_data | LC000334001WPJHN |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 30/07/1984 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OIQXV |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 30/07/1984 | 1 | Adult | R.H. Dumelow | vc57_danes_bc_data | LC000334001WON0K |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 21/07/1984 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OIAQ3 |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 21/07/1984 | 1 | Adult | R.H. Dumelow | vc57_danes_bc_data | LC000334001WOMZS |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 26/07/1983 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OIAM4 |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 26/07/1983 | 1 | Adult | R.H. Dumelow | vc57_danes_bc_data | LC000334001WP166 |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 18/07/1983 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OIALE |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 18/07/1983 | 1 | Adult | R.H. Dumelow | vc57_danes_bc_data | LC000334001WOOJP |
| Wilmot St, Sawley, Long Eaton | SK43R | 16/07/1982 | 2 | Adult | A. Braddock | vc57_danes_bc_data | LC000334001OIOY9 |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 14/07/1982 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OHYNO |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 14/07/1982 | 1 | Adult | R.H. Dumelow | vc57_danes_bc_data | LC000334001WP9DS |
| Askew Grove, Repton | SK32D | 13/07/1982 | 1 | Adult | D.A. Young | vc57_danes_bc_data | LC000334001OHHZG |
| Hilton NR, Hilton, Burton on Trent | SK23K | 09/07/1982 | 3 | Adult | A. Braddock | vc57_danes_bc_data | LC000334001OIOTH |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 12/08/1981 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OIO2I |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 12/08/1981 | 1 | Adult | R.H. Dumelow | vc57_danes_bc_data | LC000334001WQ3O0 |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 04/08/1981 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OINZ8 |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 04/08/1981 | 1 | Adult | R.H. Dumelow | vc57_danes_bc_data | LC000334001WP97K |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 12/07/1973 | 2 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OHF2I |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 11/07/1973 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OHF2G |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 10/07/1973 | 2 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OHF2D |
| Shardlow Hall, Shardlow, Long Eaton | SK43F | 11/07/1967 | 1 | Adult | Unknown | vc57_danes_bc_data | LC000334001OHW0T |
| Barrow on Trent, Derby (site not precise) | SK32P | 01/01/1885 | 1 | Adult | [VC57 Recorder] | vc57_danes_bc_data | LC000334001TAGF0 |
| Barrow on Trent, Derby (site not precise) | SK32P | 01/01/1885 | 1 | Adult | G.A. Smallwood | vc57_danes_bc_data | LC000334001WPQ3I |
| Repton (site not precise) | SK32B | 01/01/1800 | 1 | Adult | VC57 Derbyshire Recorder | vc57_danes_bc_data | LC000334001OJYI3 |