– click for Adult Macro Verification Guidelines
– Rare / Uncommon / Scarce
– easy to identify, generally distinctive and unlikely to be confused with other species.ID pointers: Very rounded wings and the rich blue-green colouration with sweeping curves of white cross-lines are characteristics of this species, helping to distinguish it from other Emerald species.
Distribution: (First record: 1984 / 1985 ) – (Last record: 2023 ) – A resident that is scarce and locally distributed in Derbyshire. First recorded in 1984 and again in 1985 from the same area. So seems to be restricted to one location in the south of the county. A recent record from a Breaston garden trap on 30th June 2023, may indicate a range expansion in the county.
*** Last updated on 2 October 2025 by RP ***
Forewing: 17-20mm
Last Recorded Year: 2023
First Recorded Year: 1984 / 1985
Last Recorded By – Not Recorded
Last Recorded General Area – Not Recorded
Selected Images: Image kindly provided by Steve Thorpe © – Breaston – 30th June 2023
Image Gallery
No gallery images found for this moth.
Distribution Map for Hemistola chrysoprasaria
Found 61 records
↳ 0 from After 2025
↳ 1 from 2020 - 2024
↳ 60 from Before 2020
↳ 0 from After 2025
↳ 1 from 2020 - 2024
↳ 60 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.
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 – Hemistola chrysoprasaria
⚠️ 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.
Monthly Records By Year:
Hemistola chrysoprasaria
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Hemistola chrysoprasaria
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Hemistola chrysoprasaria
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: Hemistola chrysoprasaria
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Hemistola chrysoprasaria
AGR: -8.57% | Total % Change: -83.3%
CUSUM Analysis: Hemistola chrysoprasaria
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 12 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 9 (September) 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 2008, reaching above average levels. The lowest population point occurred near 2023, 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: Hemistola chrysoprasaria
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Hemistola chrysoprasaria
Hemistola chrysoprasaria
( 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 - Hemistola chrysoprasaria – 61 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Woodland Ave | SK43R | 30/06/2023 | 1 | adult | vc57_irecords_extract |
| The Meads, Shipley Park, Heanor | SK44H | 13/07/2019 | 1 | adult | Danes_2019-2021 |
| Pleasley Pit CP, Pleasley | SK46X | 15/06/2017 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 12/07/2014 | 3 | Adult | vc57_danes_bc_data |
| Charlesworth St,Carr Vale,Bolsover | SK46U | 06/07/2014 | 1 | Adult | vc57_danes_bc_data |
| Hillside, The Hillock, Curbur, Calver | SK27M | 26/06/2014 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 24/06/2014 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 21/06/2014 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 14/06/2014 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 22/08/2013 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 28/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Norton, Sheffield | SK38R | 25/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Welbeck Drive, Wingerworth | SK36T | 22/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 12/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Welbeck Drive, Wingerworth | SK36T | 06/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 06/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Welbeck Drive, Wingerworth | SK36T | 05/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Pleasley Pit CP, Pleasley | SK46X | 04/07/2013 | 1 | Adult | vc57_danes_bc_data |
| Charlesworth St,Carr Vale,Bolsover | SK46U | 27/06/2011 | 1 | Adult | vc57_danes_bc_data |
| Backgarden Marehay | SK34Z | 06/07/2010 | 1 | adult | vc57_irecords_extract |
| Bamford St,Ripley | SK34Z | 06/07/2010 | 1 | Adult | vc57_danes_bc_data |
| West Park Meadows (LNR),Spondon | SK33Y | 10/07/2009 | 1 | Adult | vc57_danes_bc_data |
| Wilmot St,Long Eaton | SK43R | 04/07/2009 | 3 | Adult | vc57_danes_bc_data |
| Elgar Drive,Sawley,Long Eaton | SK43R | 03/07/2009 | 1 | Adult | vc57_danes_bc_data |
| Drayton Ave,Mackworth,Derby | SK33D | 28/06/2009 | 1 | Adult | vc57_danes_bc_data |
| Drayton Ave,Mackworth,Derby | SK33D | 28/06/2009 | 1 | Adult | vc57_danes_bc_data |
| Drayton Ave,Mackworth,Derby | SK33D | 23/06/2009 | 1 | Adult | vc57_danes_bc_data |
| Drayton Ave,Mackworth,Derby | SK33D | 23/06/2009 | 1 | Adult | vc57_danes_bc_data |
| Carsington Resr area (road side) | SK25L | 23/08/2008 | 3 | Larvae | vc57_danes_bc_data |
| Gallows Inn Close,Ilkeston | SK44Q | 04/07/2008 | 3 | Adult | vc57_danes_bc_data |
| Elgar Drive,Sawley,Long Eaton | SK43R | 10/06/2007 | 2 | Adult | vc57_danes_bc_data |
| Main St,Ticknall | SK32R | 17/07/2006 | 1 | Adult | vc57_danes_bc_data |
| Lowes Hill,Ripley | SK35V | 24/06/2006 | 1 | Adult | vc57_danes_bc_data |
| Wilmot St,Long Eaton | SK43R | 24/06/2006 | 1 | Adult | vc57_danes_bc_data |
| Drayton Ave,Mackworth,Derby | SK33D | 17/06/2006 | 1 | Adult | vc57_danes_bc_data |
| Drayton Ave,Mackworth,Derby | SK33D | 17/06/2006 | 1 | Adult | vc57_danes_bc_data |
| The Field,Shipley,Ilkeston | SK44M | 21/07/2005 | 1 | Adult | vc57_danes_bc_data |
| The Field,Shipley,Ilkeston | SK44M | 21/07/2005 | 1 | Adult | vc57_danes_bc_data |
| Westcroft Ave,Littleover,Derby | SK33G | 16/07/2005 | 1 | Adult | vc57_danes_bc_data |
| Westcroft Ave,Littleover,Derby | SK33G | 02/07/2005 | 5 | Adult | vc57_danes_bc_data |
| Shipley Park (Cinder Hill), Shipley, Ilkeston | SK44H | 02/07/2005 | 1 | Adult | vc57_danes_bc_data |
| Shipley Park (Cinder Hill), Shipley, Ilkeston | SK44H | 02/07/2005 | 1 | Adult | vc57_danes_bc_data |
| Drayton Ave,Mackworth,Derby | SK33D | 22/06/2005 | 1 | Adult | vc57_danes_bc_data |
| Drayton Ave,Mackworth,Derby | SK33D | 22/06/2005 | 1 | Adult | vc57_danes_bc_data |
| Carsington Resr | SK25L | 09/06/2005 | 8 | Larvae | vc57_danes_bc_data |
| Carsington Resr area | SK25L | 26/05/2005 | 7 | Larvae | vc57_danes_bc_data |
| Cross Green Cottages,Flint Lane,South Darley | SK26Q | 16/07/2004 | 1 | Adult | vc57_danes_bc_data |
| Sheffield Rd, Sheepbridge, Chesterfield | SK37S | 29/06/2004 | 1 | Adult | vc57_danes_bc_data |
| Sheffield Rd, Sheepbridge, Chesterfield | SK37S | 29/06/2004 | 1 | Adult | vc57_danes_bc_data |
| Charlesworth St,Carr Vale,Bolsover | SK46U | 06/06/2004 | 1 | Adult | vc57_danes_bc_data |
| Armitage Drive, Long Eaton | SK53B | 22/07/2003 | 1 | Adult | vc57_danes_bc_data |
| Wood Lane,Newhall,Swadlincote | SK22V | 22/06/2003 | 1 | Adult | vc57_danes_bc_data |
| Wood Lane, Newhall, Swadlincote | SK22V | 22/06/2003 | 1 | Adult | vc57_danes_bc_data |
| High Tor, Matlock (site not precise) | SK25Z | 06/06/2003 | 21 | Adult | vc57_danes_bc_data |
| Calke Park (Betty's Pool),Ticknall | SK32R | 03/07/1998 | 1 | Adult | vc57_danes_bc_data |
| Calke Park (Betty's Pool),Ticknall | SK32R | 03/07/1998 | 1 | Adult | vc57_danes_bc_data |
| Cross Green Cottages,Flint Lane,South Darley | SK26Q | 08/07/1994 | 1 | Adult | vc57_danes_bc_data |
| Shipley Park | SK44H | 03/08/1991 | 1 | Adult | vc57_danes_bc_data |
| Shipley Park | SK44H | 03/08/1991 | 1 | Adult | vc57_danes_bc_data |
| Shipley Wood,Shipley Park | SK44L | 28/06/1985 | 1 | Adult | vc57_danes_bc_data |
| Ticknall Limeyards,Ticknall | SK32L | 15/05/1985 | 13 | Larvae | vc57_danes_bc_data |