Taken at Aston, Oxon., on October 29th 2024. (© David Hastings) (1/200th sec at f13) Description Family: Noctuidae (ABH : 73.015) Wing span: 26 - 42mm This species is named from the clear, metallic, silver Y mark on its forewings. The forewing is marbled brown and grey. It can be found through the British Isles. Adults invade most habitats in search of nectar. The Silver Y is an immigrant. It can be found at any time of year, although it is most common from May to September. Winter survival is rare. Larvae feed on many low-growing wild and cultivated herbaceous plants. It is sometimes a horticultural pest, particularly in southern Europe. It is often active during the day, visiting flowers. It comes to light, sometimes in large numbers. Earliest UK sighting: 3rd May ; Latest UK sighting: 13th November Sightings | 13-Nov-2025 | : | Aston, Oxon | (1) | | 18-Jun-2025 | : | Whelford Pools, Glos | (1) | | 16-Jun-2025 | : | Whitecross Green Wood, Oxon | (1) | | 13-May-2025 | : | Aston, Oxon | (1) | | 12-May-2025 | : | Otmoor, Oxon | (1) | | 03-May-2025 | : | Hackpen Hill, Oxon | (1) |
| | 29-Oct-2024 | : | Aston, Oxon | (1) | | 02-Sep-2024 | : | Aston, Oxon | (1) | | 16-Aug-2024 | : | Radley Lakes, Oxon | (1) | | 04-Aug-2024 | : | Chantry Hill, W Sussex | (2) | | 02-Aug-2024 | : | Pagham Harbour, W. Sussex | (1) | | 25-Jul-2024 | : | Aston, Oxon | (2) | | 18-Jul-2024 | : | Aston, Oxon | (2) | | 17-Jul-2024 | : | Hackpen Hill, Oxon | (1) | | 10-Jul-2024 | : | Aston, Oxon | (2) | | 05-Jun-2024 | : | Pewsey Downs NNR, Wilts | (2) | | 02-Jun-2024 | : | Bucknell Wood, Northants | (1) | | 02-Jun-2024 | : | Aston, Oxon | (1) | | 30-May-2024 | : | Aston, Oxon | (1) | | 27-May-2024 | : | Aston, Oxon | (2) | | 27-May-2024 | : | Otmoor, Oxon | (2) | | 25-May-2024 | : | The Coombes, Wilts | (1) | | 19-May-2024 | : | Crog Hill, Oxon | (3) | | 19-May-2024 | : | Hackpen Hill, Oxon | (2) | | 19-May-2024 | : | Pigtrough Bottom, Oxon | (8) | | 19-May-2024 | : | Seven Barrows, Berks | (2) | | 18-May-2024 | : | Aston, Oxon | (1) | | 15-May-2024 | : | Aston, Oxon | (1) | | 12-May-2024 | : | Crog Hill, Oxon | (1) | | 12-May-2024 | : | Hackpen Hill, Oxon | (5) | | 12-May-2024 | : | Aston, Oxon | (1) | | 09-May-2024 | : | Aston Upthorpe Downs, Oxon | (1) |
| | 07-Oct-2023 | : | Aston, Oxon | (2) | | 15-Sep-2023 | : | Aston, Oxon | (1) | | 29-Aug-2023 | : | Aston, Oxon | (1) | | 09-Aug-2023 | : | Hackpen Hill, Oxon | (1) | | 07-Aug-2023 | : | Parsonage Moor, Oxon | (1) | | 30-Jul-2023 | : | Aston, Oxon | (1) | | 28-Jul-2023 | : | Aston, Oxon | (2) | | 25-Jul-2023 | : | Whitecross Green Wood, Oxon | (4) | | 23-Jul-2023 | : | Aston, Oxon | (1) | | 19-Jul-2023 | : | Aston, Oxon | (1) | | 17-Jul-2023 | : | Whitecross Green Wood, Oxon | (3) | | 14-Jul-2023 | : | Aston, Oxon | (1) | | 13-Jul-2023 | : | Aston, Oxon | (1) | | 13-Jul-2023 | : | Hackpen Hill, Oxon | (2) | | 12-Jul-2023 | : | Aston, Oxon | (4) | | 11-Jul-2023 | : | Aston, Oxon | (1) | | 09-Jul-2023 | : | Aston, Oxon | (1) | | 08-Jul-2023 | : | Aston, Oxon | (2) | | 07-Jul-2023 | : | Parsonage Moor, Oxon | (2) | | 07-Jul-2023 | : | Aston, Oxon | (4) | | 06-Jul-2023 | : | Ashdown, Oxon | (1) | | 06-Jul-2023 | : | Aston, Oxon | (1) | | 01-Jul-2023 | : | Aston, Oxon | (1) | | 30-Jun-2023 | : | Aston, Oxon | (1) | | 26-Jun-2023 | : | Whitecross Green Wood, Oxon | (1) | | 21-Jun-2023 | : | Haddon Moor, Somerset | (3) | | 15-Jun-2023 | : | Stonesfield Common, Oxon | (2) | | 14-Jun-2023 | : | Aston, Oxon | (2) | | 13-Jun-2023 | : | Aston, Oxon | (1) | | 12-Jun-2023 | : | Otmoor, Oxon | (1) | | 07-Jun-2023 | : | Pewsey Downs NNR, Wilts | (1) | | 20-May-2023 | : | Aston Upthorpe Downs, Oxon | (1) | | 20-May-2023 | : | Cholsey Marsh, Oxon | (1) | | 18-May-2023 | : | Aston, Oxon | (1) | | 15-May-2023 | : | Hackpen Hill, Oxon | (1) |
| | 19-Jul-2022 | : | Aston, Oxon | (1) | | 30-Jun-2022 | : | Aston, Oxon | (1) | | 25-Jun-2022 | : | Myers Allotment, Lancashire | (1) | | 23-Jun-2022 | : | Arnside Knott, Cumbria | (1) | | 13-Jun-2022 | : | Otmoor, Oxon | (1) | | 12-Jun-2022 | : | Crog Hill, Oxon | (1) | | 10-Jun-2022 | : | Radley Lakes, Oxon | (1) | | 07-Jun-2022 | : | Whitecross Green Wood, Oxon | (1) | | 20-May-2022 | : | Aston, Oxon | (2) |
| | 05-Sep-2021 | : | Otmoor, Oxon | (1) | | 24-Aug-2021 | : | Pewsey Downs NNR, Wilts | (1) | | 23-Aug-2021 | : | Otmoor, Oxon | (1) | | 17-Aug-2021 | : | Abingdon, Oxon | (1) | | 11-Aug-2021 | : | Fence Wood, Berks | (1) | | 04-Aug-2021 | : | Hackpen Hill, Oxon | (1) | | 01-Aug-2021 | : | Abingdon, Oxon | (1) | | 27-Jul-2021 | : | Abingdon, Oxon | (1) | | 26-Jul-2021 | : | Aston Rowant NNR, Oxon | (3) | | 22-Jul-2021 | : | Abingdon, Oxon | (1) | | 21-Jul-2021 | : | Banbury, Oxon | (1) | | 17-Jul-2021 | : | Aston Upthorpe Downs, Oxon | (1) | | 10-Jul-2021 | : | Abingdon, Oxon | (1) | | 05-Jul-2021 | : | Otmoor, Oxon | (4) | | 26-Jun-2021 | : | Fence Wood, Berks | (1) | | 23-Jun-2021 | : | Otmoor, Oxon | (1) | | 21-Jun-2021 | : | Abingdon, Oxon | (1) | | 16-Jun-2021 | : | Abingdon, Oxon | (1) | | 15-Jun-2021 | : | Whitecross Green Wood, Oxon | (1) | | 05-Jun-2021 | : | Crog Hill, Oxon | (2) | | 03-Jun-2021 | : | Bucknell Wood, Northants | (1) | | 27-May-2021 | : | Lardon Chase, Berks | (1) |
| | 13-Sep-2020 | : | Aston Upthorpe Downs, Oxon | (1) | | 27-Aug-2020 | : | Abingdon, Oxon | (1) | | 26-Aug-2020 | : | Otmoor, Oxon | (1) | | 23-Aug-2020 | : | Pewsey Downs NNR, Wilts | (1) | | 22-Aug-2020 | : | Abingdon, Oxon | (1) | | 16-Aug-2020 | : | Eynsham, Oxon | (1) | | 13-Aug-2020 | : | Abingdon, Oxon | (1) | | 22-Jul-2020 | : | Crog Hill, Oxon | (1) | | 07-Jul-2020 | : | Lardon Chase, Berks | (1) | | 01-Jul-2020 | : | Abingdon, Oxon | (1) | | 13-Jun-2020 | : | Fence Wood, Berks | (1) | | 13-Jun-2020 | : | Silchester Common, Hants | (1) | | 18-May-2020 | : | Hackpen Hill, Oxon | (1) | | 18-May-2020 | : | Seven Barrows, Berks | (1) |
| | 15-Sep-2019 | : | Abingdon, Oxon | | | 13-Aug-2019 | : | Bowdown Wood, Berks | (1) | | 04-Aug-2019 | : | Fence Wood, Berks | (1) | | 22-Jul-2019 | : | Otmoor, Oxon | (1) | | 12-Jul-2019 | : | Whitecross Green Wood, Oxon | (1) |
| | 22-Jul-2018 | : | Vercors Natural Park, France | | | 02-Jun-2018 | : | Standlake Common, Oxon | |
| | 21-May-2017 | : | Abingdon, Oxon | |
| | 27-Jul-2013 | : | Abingdon, Oxon | | | 27-Jun-2013 | : | Narborough Railway Line, Norfolk | |
| | 01-Aug-2012 | : | Abingdon, Oxon | |
| | 08-Aug-2009 | : | Aston Rowant NNR, Oxon | |
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