– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Generally Common / Widespread
– care required in the identification process, as confusion with similar species is likely – quality photographs required. Confusion Species: Similar to other Agonopterix sp.
Blue-coded] moths are not stored on the website at this current time. 
no images were found
Distribution Map for Agonopterix assimilella
derbyshiremoths.org © makes no guarantee of accuracy of data used in these maps and charts – they are presented to you with best endeavours and the data behind them updated periodically as time permits. Historic records are being discovered all the time. These will be assessed, so once they are all verified, they will be incorporated onto the map and charts.
↳ 1 from After 2025
↳ 1 from 2020 - 2024
↳ 0 from Before 2020
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******* Choose ONLY one at a time, of either Monad, Tetrad or Hectad Distribution - each has it's own set of data. Also, the distribution maps cover ALL recorded data. *******
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.
Monthly Records By Year: Agonopterix assimilella
Monthly Counts By Year: Agonopterix assimilella
Recordings By Year: Agonopterix assimilella
Agonopterix assimilella
Insufficient records/data for a trend analysis
Hectad (10kmx10km) Coverage: Agonopterix assimilella
Flight Periods – Indicative –vs– Recorded Data
Agonopterix assimilella
Agonopterix assimilella
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 - Agonopterix assimilella – 2 records available
Listed by Year - descending
| Taxon | Site Name | Tetrad | Year | Date | Count | Stage |
|---|---|---|---|---|---|---|
| Agonopterix assimilella | Markham Vale South Tip | SK47K | 2025 | 13/02/2025 | 1 | larva |
| Agonopterix assimilella | Buxton SK17, UK | SK07S | 2020 | 01/08/2020 | 1 |