– 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 large rusty patches near the tip of each grey forewing and with inner side distinctly edged in black are diagnostic. Also very fine scalloped cross-lines help with the ID process.
Distribution: (First record: 1863 ) – (Last record: 14 June 2024 at Cressbrook Dale ) – Rare and local in Derbyshire being known only from a few sites and very few records. First account in Derbyshire of this species appears to be 1863, then 26 records from 1905 – 2017 with the last report of one in 2024.
*** Last updated on 2 October 2025 by RP ***
Last Recorded Year: 2024
First Recorded Year: 1863
Last Recorded By – Christopher Blakey – iRecord
Last Recorded General Area – Cressbrook Dale
Selected Images: Image by Simon Roddis © & Steve Orridge © / Cressbrook Dale – Chris Blakey©
Image Gallery
Distribution Map for Venusia blomeri
Found 40 records
↳ 0 from After 2025
↳ 2 from 2020 - 2024
↳ 38 from Before 2020
↳ 0 from After 2025
↳ 2 from 2020 - 2024
↳ 38 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 – Venusia blomeri
⚠️ 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:
Venusia blomeri
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Venusia blomeri
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Venusia blomeri
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: Venusia blomeri
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Venusia blomeri
AGR: 1.7% | Total % Change: 50%
CUSUM Analysis: Venusia blomeri
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 14 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 2017, reaching above average levels. The lowest population point occurred near 2007, 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: Venusia blomeri
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Venusia blomeri
Venusia blomeri
( 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 - Venusia blomeri – 40 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Cressbrook Dale (SK) | SK17R | 14/06/2024 | 1 | adult | vc57_irecords_extract |
| Miller's Dale, woodland near station | SK17G | 26/06/2024 | 2 | adult | vc57_irecords_extract |
| Millers Dale (Trail-Kiln) | SK17G | 15/07/2017 | 6 | Adult | vc57_danes_bc_data |
| Millers Dale (Trail bank) | SK17G | 15/07/2017 | 1 | Adult | vc57_danes_bc_data |
| Millers Dale (quarry) | SK17G | 15/07/2017 | 3 | Adult | vc57_danes_bc_data |
| Derbyshire, UK | SK17G | 25/07/2016 | 1 | Adult | vc57_irecords_extract |
| Station Quarry, Chee Dale | SK17G | 25/07/2016 | 11 | Adult | vc57_danes_bc_data |
| Halldale Wood,Darley Dale | SK26X | 21/05/2011 | 1 | Adult | vc57_danes_bc_data |
| Dovedale | SK15K | 07/06/2010 | 1 | Adult | vc57_danes_bc_data |
| Dovedale (Staffs side) | SK15K | 01/06/2009 | 5 | Adult | vc57_danes_bc_data |
| Dovedale | SK15K | 10/08/2007 | 1 | Adult | vc57_danes_bc_data |
| Dovedale | SK15K | 10/08/2007 | 1 | Adult | vc57_danes_bc_data |
| Dovedale | SK15L | 21/07/2006 | 1 | Adult | vc57_danes_bc_data |
| Drayton Ave,Mackworth,Derby | SK33D | 15/06/2005 | 1 | Adult | vc57_danes_bc_data |
| Drayton Ave,Mackworth,Derby | SK33D | 15/06/2005 | 1 | Adult | vc57_danes_bc_data |
| Halldale Wood,nr Darley Dale (site not precise) | SK26X | 17/06/2004 | 3 | Adult | vc57_danes_bc_data |
| Halldale Wood,nr Darley Dale (site not precise) | SK26X | 28/06/2001 | 1 | Adult | vc57_danes_bc_data |
| Halldale Wood,nr Darley Dale (site not precise) | SK26X | 29/06/2001 | 2 | Adult | vc57_danes_bc_data |
| Halldale Wood,nr Darley Dale (site not precise) | SK26X | 29/06/2001 | 2 | Adult | vc57_danes_bc_data |
| Dovedale (site not precise) | SK15K | 17/06/2000 | 1 | Adult | vc57_danes_bc_data |
| Dovedale (woods beyond stepping stones) | SK15K | 14/07/1984 | 1 | Adult | vc57_danes_bc_data |
| Dovedale (site not precise) | SK15K | 03/06/1982 | 42 | Adult | vc57_danes_bc_data |
| Dovedale (site not precise) | SK15K | 16/06/1981 | 1 | Adult | vc57_danes_bc_data |
| Clough Wood,Darley Dale (site not precise) | SK26K | 26/05/1981 | 16 | Adult | vc57_danes_bc_data |
| Via Gellia,Cromford | SK25Y | 17/06/1979 | 1 | Adult | vc57_danes_bc_data |
| Clough Wood,Darley Dale | SK26K | 15/06/1976 | 1 | Adult | vc57_danes_bc_data |
| Matlock (Teacher Training College) | SK36A | 22/06/1975 | 1 | Adult | vc57_danes_bc_data |
| Dovedale (site not precise) | SK15K | 04/06/1950 | 1 | Adult | vc57_danes_bc_data |
| Dovedale (site not precise) | SK15K | 21/06/1933 | 1 | Adult | vc57_danes_bc_data |
| Dovedale (site not precise) | SK15K | 08/07/1930 | 1 | Adult | vc57_danes_bc_data |
| Dovedale (site not precise) | SK15K | 01/01/1910 | 1 | Adult | vc57_danes_bc_data |
| Dovedale (site not precise) | SK15K | 01/01/1895 | 1 | Adult | vc57_danes_bc_data |
| Bakewell (site not precise) | SK26E | 01/01/1895 | 1 | Adult | vc57_danes_bc_data |
| Bakewell (site not precise) | SK26E | 01/01/1895 | 1 | Adult | vc57_danes_bc_data |
| Repton (site not precise) | SK32B | 01/01/1894 | 1 | Larvae | vc57_danes_bc_data |
| Repton (site not precise) | SK32B | 01/01/1894 | 1 | Larvae | vc57_danes_bc_data |
| Hoofies Wood, Midway, Swadlincote | SK32B | 01/01/1885 | 1 | Adult | vc57_danes_bc_data |
| Repton (site not precise) | SK32B | 01/01/1881 | 1 | Adult | vc57_danes_bc_data |
| Repton (site not precise) | SK32B | 01/01/1881 | 1 | Adult | vc57_danes_bc_data |
| Cubley, Sudbury (site not precise) | SK13U | 01/01/1863 | 1 | Adult | vc57_danes_bc_data |