– click for Adult Macro Verification Guidelines
– Rare / Uncommon / Scarce
– easy to identify, generally distinctive and unlikely to be confused with other species.ID pointers: The forewing is quiet broad and in the most common form – arundineta, the straw-brown base colour with grey vertical streak leading into a cross-band along the outer wing edge is diagnostic. The nominate form dissoluta is a plain grey-brown with a prominent dark kidney mark outlined in white.
Distribution: (Last record: 26 August 2024 at Markham Vale Complex ) – A resident that is uncommon and locally distributed in Derbyshire. A reed bed species being a relict from the fenlands still surviving at a local level in the south-east of the county at wetland habitat in the Trent Valley. Now being reported from an increasing number of sites, restricted to the south of the county.
*** Last updated on 2 October 2025 by RP ***
Forewing: 12-15mm
Last Recorded By – Sid Morris
Last Recorded General Area – Markham Vale Complex
Selected Images: Findern, Derbyshire – July 2016 – Brian & Jean Hallam©
Image Gallery
Distribution Map for Archanara dissoluta
Found 29 records
↳ 0 from After 2025
↳ 9 from 2020 - 2024
↳ 20 from Before 2020
↳ 0 from After 2025
↳ 9 from 2020 - 2024
↳ 20 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 – Archanara dissoluta
⚠️ 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:
Archanara dissoluta
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Archanara dissoluta
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Archanara dissoluta
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: Archanara dissoluta
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Archanara dissoluta
AGR: 1.71% | Total % Change: 33.3%
CUSUM Analysis: Archanara dissoluta
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 13 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 2009, reaching above average levels. The lowest population point occurred near 2008, 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: Archanara dissoluta
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Archanara dissoluta
Archanara dissoluta
( 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 - Archanara dissoluta – 29 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Markham Vale Derbyshire | SK47K | 09/08/2024 | 1 | adult | vc57_irecords_extract |
| Markham Vale Derbyshire | SK47L | 26/08/2024 | 1 | adult | vc57_irecords_extract |
| ambaston gravel pits | SK43F | 17/07/2024 | 2 | adult | vc57_irecords_extract |
| Staveley Derbyshire | SK47H | 09/08/2023 | 1 | adult | vc57_irecords_extract |
| Markham Vale Derbyshire | SK47L | 10/08/2023 | 1 | adult | vc57_irecords_extract |
| Staveley Derbyshire | SK47H | 11/08/2023 | 1 | adult | vc57_irecords_extract |
| Woodland Ave | SK43R | 19/07/2022 | 1 | Adult | vc57_irecords_extract |
| Not given | SK22F | 08/07/2021 | 1 | Adult | vc57_irecords_extract |
| Drakelow, Derbys. | SK22F | 08/07/2021 | 1 | adult | vc57_irecords_extract |
| Briar Close, Newhall, Swadlincote | SK22V | 02/08/2019 | 1 | adult | Danes_2019-2021 |
| Hillside, Findern, Derby | SK33A | 26/07/2016 | 1 | Adult | vc57_danes_bc_data |
| Drakelow NR (Minton's Lagoon), Burton on Trent | SK22F | 27/06/2015 | 1 | Adult | vc57_danes_bc_data |
| Midway Rd,Midway,Swadlincote | SK32A | 30/08/2013 | 1 | Adult | vc57_danes_bc_data |
| Midway Rd,Midway,Swadlincote | SK32A | 30/08/2013 | 1 | Adult | vc57_danes_bc_data |
| Midway Rd,Midway,Swadlincote | SK32A | 29/07/2011 | 1 | Adult | vc57_danes_bc_data |
| Drakelow NR (Minton's Lagoon), Burton on Trent | SK22F | 24/07/2010 | 1 | Adult | vc57_danes_bc_data |
| Drakelow NR (Minton's Lagoon), Burton on Trent | SK22F | 24/07/2010 | 1 | Adult | vc57_danes_bc_data |
| Drakelow NR (Minton's Lagoon), Burton on Trent | SK22F | 22/08/2009 | 3 | Adult | vc57_danes_bc_data |
| Drakelow NR (Minton's Lagoon), Burton on Trent | SK22F | 22/08/2009 | 3 | Adult | vc57_danes_bc_data |
| Drakelow NR (car park),Burton on Trent | SK22F | 29/08/2008 | 1 | Adult | vc57_danes_bc_data |
| Drakelow NR (car park),Burton on Trent | SK22F | 29/08/2008 | 1 | Adult | vc57_danes_bc_data |
| Drakelow NR,Burton on Trent | SK22F | 08/09/2007 | 1 | Adult | vc57_danes_bc_data |
| Drakelow NR,Burton on Trent | SK22F | 08/09/2007 | 1 | Adult | vc57_danes_bc_data |
| Ault Hucknall,Glapwell | SK46S | 09/08/2007 | 1 | Adult | vc57_danes_bc_data |
| Wilmot St, Sawley, Long Eaton | SK43R | 29/07/1997 | 1 | Adult | vc57_danes_bc_data |
| Wilmot St, Sawley, Long Eaton | SK43R | 29/07/1997 | 1 | Adult | vc57_danes_bc_data |
| Trentlock, Sawley, Long Eaton | SK43V | 14/08/1981 | 8 | Adult | vc57_danes_bc_data |
| Wilmot St, Sawley, Long Eaton (error, Trentlock) | SK43R | 25/08/1981 | 2 | Adult | vc57_danes_bc_data |
| Wilmot St, Sawley, Long Eaton (error) | SK43R | 25/08/1981 | 2 | Adult | vc57_danes_bc_data |