– click for Adult Macro Verification Guidelines
– Significant Record / Very Rare / Vagrant
** This page is to record aggregated records only – see individual species pages for additional information.
**
– difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.Confusion Species: Euxoa obelisca – Square-spot Dart; Euxoa tritici – White-line Dart
Distribution: A specimen was recorded on 27th July 2022 from Newhall which could potentially have been this species. Unfortunately the photograph supplied was not of good enough quality to put the record beyond any doubt. It was sent to several experts in their field on Square-spot Dart & White-line Dart and only a 90% probability of it being a Square-spot Dart could be given. Therefore the record has to be accepted as an aggregate, with a probability of Square-spot Dart.
*** Last updated on 2 October 2025 by RP ***
Last Recorded By – Not Recorded
Last Recorded General Area – Not Recorded
Selected Images:
Image Gallery
No gallery images found for this moth.
Distribution Map for Euxoa obelisca/tritici
Found 4 records
↳ 0 from After 2025
↳ 1 from 2020 - 2024
↳ 3 from Before 2020
↳ 0 from After 2025
↳ 1 from 2020 - 2024
↳ 3 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 - No LSID found for: Euxoa obelisca/tritici
This moth may be an aggregate and as such no specific records of distribution exist.
Monthly Records By Year:
Euxoa obelisca/tritici
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Euxoa obelisca/tritici
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Euxoa obelisca/tritici
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: Euxoa obelisca/tritici
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Euxoa obelisca/tritici
AGR: 0% | Total % Change: 0%
CUSUM Analysis: Euxoa obelisca/tritici
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 23 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 2018, reaching above average levels. The lowest population point occurred near 2018, 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: Euxoa obelisca/tritici
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Euxoa obelisca/tritici
Euxoa obelisca/tritici
( 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 - Euxoa obelisca/tritici – 4 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Newhall, Derbyshire | SK22V | 27/07/2022 | 1 | adult | vc57_irecords_extract |
| DRONFIELD WOODHOUSE | SK37J | 28/08/2019 | 1 | adult | vc57_irecords_extract |
| DRONFIELD WOODHOUSE | SK37J | 18/08/2018 | 1 | adult | vc57_irecords_extract |
| DRONFIELD WOODHOUSE | SK37J | 23/06/2018 | 1 | adult | vc57_irecords_extract |