– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Significant Record / Very Rare / Vagrant 
– Leaf Miner
– care required in the identification process, as confusion with similar species is likely – quality photographs required. Confusion Species: Gypsonoma dealbana
ID pointers: Care is needed in identifying this olethreutinae, as there can be slight variation in colour and markings. The ground colour is white mixed with grey/brown. The basal patch having the outer edge angulated, median fascia poorly defined showing grey/brown markings, a weak apical spot in subterminal fascia.
Distribution: (First record: 24 October 2025 at Allestree; Markham Vale ) – (Last record: 24 October 2025 at Allestree; Markham Vale ) – A first VC57 & Derbyshire record of this species. Leaf Mines from Markham Vale, Hall Lane Ponds 22nd Oct 2025 (a first account of the leaf mine for the vice-county)
General Comment: None Mine Period Additional: Larvae start feeding in a short linear mine which starts alongside the leaf midrib or a vein then window feeding takes place and a silken frass filled tube created.
Mine ID Difficulty: Not Recorded
Mine Type/s: Not Recorded
Mine Feeding Method/s: Not Recorded
Mine Comment: None.
*** Last updated on 7 November 2025 by RP ***
Last Recorded Year: 2022 (adult) – 2025 (leaf mine)
First Recorded Year: 2022; 2025
Last Recorded By – Stephen Plant ; Mark Radford
Last Recorded General Area – Allestree; Markham Vale
Selected Images: 17th June 2022 – Allestree – Stephen Plant / Markham Vale Oct 2025 Mark Radford©
Image Gallery
No gallery images found for this moth.
Distribution Map for Gypsonoma oppressana
Found 3 records
↳ 2 from After 2025
↳ 1 from 2020 - 2024
↳ 0 from Before 2020
↳ 2 from After 2025
↳ 1 from 2020 - 2024
↳ 0 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 – Gypsonoma oppressana
⚠️ 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:
Gypsonoma oppressana
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Gypsonoma oppressana
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Gypsonoma oppressana
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: Gypsonoma oppressana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Gypsonoma oppressana
AGR: 0% | Total % Change: 0%
CUSUM Analysis: Gypsonoma oppressana
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 24 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 2025, reaching above average levels. The lowest population point occurred near 2022, 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: Gypsonoma oppressana
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Gypsonoma oppressana
Gypsonoma oppressana
( 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.
Mine Periods – Indicative –vs– Recorded Data
Gypsonoma oppressana
Gypsonoma oppressana
( data includes both Larvae and Adult Stages )
Mine 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 mine periods [month/s]. The coloured lines represent the actual months seen mining, from site observation records received between 2020-2025.
Records Behind the Map and Charts - Gypsonoma oppressana – 3 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Markham Vale, Hall Lane Pond | SK47H | 22/10/2025 | 1 | mine | vc57_irecords_extract |
| Midway, Derbys. | SK32A | 30/06/2025 | 1 | adult | vc57_irecords_extract |
| Allestree, Derby | SK33P | 17/06/2022 | 1 | adult | vc57_irecords_extract |