– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Generally Common / Widespread
– easy to identify, generally distinctive and unlikely to be confused with other species.ID pointers: A colourful member of the group. Forewing greyish white with much variable mottling of darker grey. Shoulders and head white. Two large blotches on the costa and a black spot bordered with reddish streak. A row of black dots along the termen.
Distribution: A fairly common moth throughout the county wherever there is Hemlock.
*** Last updated on 2 October 2025 by RP ***
Blue-coded] moths are not stored on the website at this current time. Selected Images: Foremark, Derbyshire – Tony Davison ©
Image Gallery
Distribution Map for Agonopterix alstromeriana
Found 74 records
↳ 6 from After 2025
↳ 12 from 2020 - 2024
↳ 56 from Before 2020
↳ 6 from After 2025
↳ 12 from 2020 - 2024
↳ 56 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 – Agonopterix alstromeriana
⚠️ 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:
Agonopterix alstromeriana
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Agonopterix alstromeriana
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Agonopterix alstromeriana
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: Agonopterix alstromeriana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Agonopterix alstromeriana
AGR: -2.76% | Total % Change: -44.4%
CUSUM Analysis: Agonopterix alstromeriana
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 9 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 2006, reaching above average levels. The lowest population point occurred near 2024, 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: Agonopterix alstromeriana
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Agonopterix alstromeriana
Agonopterix alstromeriana
( 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 - Agonopterix alstromeriana – 74 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Hilton, South Derbyshire | SK23K | 07/07/2025 | 1 | adult | vc57_irecords_extract |
| Miller's Dale | SK17G | 25/07/2025 | 1 | adult | vc57_irecords_extract |
| Markham Vale Derbyshire | SK47L | 20/03/2025 | 1 | adult | vc57_irecords_extract |
| Wingerworth, Derbyshire | SK36Y | 26/03/2025 | 1 | adult | vc57_irecords_extract |
| Ilkeston, Derbyshire | SK44K | 21/03/2025 | 1 | adult | vc57_irecords_extract |
| Sandiacre Garden | SK43T | 21/03/2025 | 1 | adult | vc57_irecords_extract |
| Markham Vale Derbyshire | SK47K | 09/08/2024 | 1 | adult | vc57_irecords_extract |
| King's Newton | SK32Y | 29/07/2024 | 1 | adult | vc57_irecords_extract |
| Cross Green, Matlock DEJW, UK | SK26Q | 02/05/2024 | 1 | Adult | vc57_irecords_extract |
| King's Newton | SK32Y | 13/03/2024 | 1 | adult | vc57_irecords_extract |
| King St, Worksop, England, GB | SK57N | 03/08/2023 | 1 | Adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 07/07/2023 | 1 | adult | vc57_irecords_extract |
| Findern Garden | SK33A | 27/07/2023 | 1 | Adult | vc57_irecords_extract |
| Findern Garden | SK33A | 28/07/2023 | 1 | Adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 14/08/2022 | 1 | adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 31/03/2021 | 1 | adult | vc57_irecords_extract |
| Kings Newton Fields | SK32Y | 27/08/2020 | 1 | Adult | vc57_irecords_extract |
| Findern, Derbyshire, DEAZ | SK33A | 04/04/2020 | 1 | adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 21/03/2019 | 1 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 19/08/2013 | 1 | Adult | vc57_irecords_extract |
| Back Lane,Glapwell | SK46T | 20/03/2012 | 1 | Adult | vc57_danes_bc_data |
| Midway Rd,Midway,Swadlincote | SK32A | 13/03/2012 | 1 | Adult | vc57_danes_bc_data |
| Drakelow NR,Burton on Trent | SK22F | 24/09/2011 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 09/08/2011 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 21/05/2011 | 1 | Adult | vc57_danes_bc_data |
| Hardhurst Rd, Alvaston, Derby | SK33W | 09/04/2010 | 1 | Adult | vc57_danes_bc_data |
| Back Lane,Glapwell | SK46T | 09/04/2010 | 1 | Adult | vc57_danes_bc_data |
| Wilmot St,Long Eaton | SK43R | 10/04/2010 | 1 | Adult | vc57_danes_bc_data |
| Drakelow NR (car park),Burton on Trent | SK22F | 21/03/2010 | 2 | Adult | vc57_danes_bc_data |
| The Hollies,Holly St,Stapenhill,Burton on Trent | SK22K | 21/03/2010 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 22/04/2009 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 15/03/2009 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 19/03/2009 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 10/05/2008 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 25/08/2007 | 1 | Adult | vc57_danes_bc_data |
| Wood Lane,Newhall,Swadlincote | SK22V | 10/08/2007 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 23/05/2007 | 1 | Adult | vc57_danes_bc_data |
| Calke Park | SK32L | 12/03/2007 | 1 | adult | vc57_irecords_extract |
| Calke Park Ridge from Fisherman's Car Park | SK32R | 26/03/2007 | 1 | adult | vc57_irecords_extract |
| Calke Park,Ticknall | SK32L | 12/03/2007 | 1 | Adult | vc57_danes_bc_data |
| Calke Park,Ticknall | SK32R | 26/03/2007 | 1 | Adult | vc57_danes_bc_data |
| Newboundmill Lane,Pleasley | SK56C | 27/03/2007 | 1 | Adult | vc57_danes_bc_data |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 14/11/2006 | 1 | Adult | vc57_danes_bc_data |
| Foremark Resr (entrance road), Ticknall | SK32H | 06/10/2006 | 1 | Adult | vc57_danes_bc_data |
| FOREMARK RESERVOIR | SK32H | 23/09/2006 | 1 | adult | vc57_irecords_extract |
| Melbourne, Derbyshire | SK32X | 29/09/2006 | 1 | adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 15/09/2006 | 1 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 19/09/2006 | 1 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 21/09/2006 | 6 | Adult | vc57_irecords_extract |
| King Newton Fields,Melbourne | SK32Y | 07/09/2006 | 5 | Adult | vc57_danes_bc_data |
| Main St,Kings Newton,Melbourne | SK32Y | 15/09/2006 | 1 | Adult | vc57_danes_bc_data |
| Spinney Hill,Melbourne | SK32X | 29/09/2006 | 1 | Adult | vc57_danes_bc_data |
| Foremark Resr, Ticknall | SK32H | 23/09/2006 | 1 | Adult | vc57_danes_bc_data |
| Main St,Kings Newton,Melbourne | SK32Y | 19/09/2006 | 1 | Adult | vc57_danes_bc_data |
| Forbes Hole (meadow area),Long Eaton | SK43W | 22/07/2006 | 1 | Adult | vc57_danes_bc_data |
| Main Street, Kings Newton | SK32Y | 01/08/2005 | 3 | Adult | vc57_irecords_extract |
| Main St,Kings Newton,Melbourne | SK32Y | 01/08/2005 | 3 | Adult | vc57_danes_bc_data |
| Main Street, Kings Newton | SK32Y | 11/07/2005 | 1 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 26/07/2005 | 2 | Adult | vc57_irecords_extract |
| Main Street, Kings Newton | SK32Y | 27/07/2005 | 6 | Adult | vc57_irecords_extract |
| Main St,Kings Newton,Melbourne | SK32Y | 11/07/2005 | 1 | Adult | vc57_danes_bc_data |
| Main St,Kings Newton,Melbourne | SK32Y | 26/07/2005 | 2 | Adult | vc57_danes_bc_data |
| Main St,Kings Newton,Melbourne | SK32Y | 27/07/2005 | 6 | Adult | vc57_danes_bc_data |
| Main Street, Kings Newton | SK32Y | 06/08/2004 | 3 | Adult | vc57_irecords_extract |
| Main St,Kings Newton,Melbourne | SK32Y | 06/08/2004 | 3 | Adult | vc57_danes_bc_data |
| Rosliston (National Forest Centre), Swadlincote | SK21N | 06/08/2004 | 1 | Adult | vc57_danes_bc_data |
| Toyota Site, Burnaston | SK23V | 28/07/2004 | 1 | Adult | vc57_irecords_extract |
| Burnaston (Toyota Plant NR), Derby | SK23V | 28/07/2004 | 1 | Adult | vc57_danes_bc_data |
| South Wood, Calke, Ticknall | SK32Q | 14/03/1997 | 1 | Adult | vc57_danes_bc_data |
| Elavston Park NR, Derby | SK43B | 21/04/1996 | 1 | Adult | vc57_danes_bc_data |
| Shipley Wood, Shipley Park, Ilkeston | SK44M | 09/04/1996 | 1 | Adult | vc57_danes_bc_data |
| Acton Rd Ind Est, Long Eaton | SK43W | 19/07/1995 | 1 | Adult | vc57_danes_bc_data |
| Acton Rd Ind Est, Long Eaton | SK43W | 25/07/1995 | 1 | Adult | vc57_danes_bc_data |
| Wood Lane,Newhall,Swadlincote | SK22V | 29/04/1994 | 1 | Adult | vc57_danes_bc_data |