– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Significant Record / Very Rare / Vagrant 
– Migrant
– care required in the identification process, as confusion with similar species is likely – quality photographs required. Confusion Species: Sitochroa verticalis (Lesser Pearl)
Cromford (2022) First VC57 record – Clive Ashton© / Findern 24/8/2025 Brian Hallam©/ Sandiacre 25/8/2025 Anne Butler©
Image Gallery
Occurrence Distribution From All Available Data (Adult & Immature)
Distribution Map for Ostrinia nubilalis
↳ from 2026+
↳ 2 from 2020 - 2025
↳ 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 – Ostrinia nubilalis
⚠️ 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:
Ostrinia nubilalis
( data includes both Larvae and Adult Stages )
Monthly Counts By Year: Ostrinia nubilalis
( data is based on 'Adult' stage records only. )
First/Last Recorded Dates: Ostrinia nubilalis
Adult-only & Anything [Larvae, Pupae, Adult, Mines]
Shading shows moth presence between dates
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Recordings By Year: Ostrinia nubilalis
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Ostrinia nubilalis
AGR: 0% | Total % Change: 0%
Hectad (10kmx10km) Coverage: Ostrinia nubilalis
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Ostrinia nubilalis
Ostrinia nubilalis
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 2020-2026.
Records Behind the Map and Charts - Ostrinia nubilalis – 2 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Source |
|---|---|---|---|---|---|
| Findern, Derbyshire | SK33A | 24/08/2025 | 1 | adult | vc57_irecords_extract |
| Lower Cromford Garden | SK25Y | 19/07/2022 | 1 | adult | vc57_irecords_extract |