Species |
First sighting 2019 |
First sighting 2018 |
| Peacock | 14th February | 16th March |
| Small Tortoiseshell | 14th February | 24th February |
| Red Admiral | 8th January | 10th January |
| Comma | 11th February | 20th February |
| Brimstone | 13th February | 25th January |
| Small White | 25th February | 16th March |
| Green-veined White | 30th March | 18th April |
| Orange Tip | 24th March | 14th April |
| Holly Blue | 25th March | 18th April |
| Speckled Wood | 28th March | 14th April |
| Large White | 24th March | 14th April |
| Dingy Skipper | 17th April | 7th May |
| Grizzled Skipper | 17th April | 3rd May |
| Green Hairstreak | 17th April | 1st May |
| Painted Lady | 23rd February | 28th May |
| Small Heath | 19th April | 13th May |
| Small Copper | 18th April | 6th May |
| Common Blue | 30th April | 17th May |
| Brown Argus | 30th April | 17th May |
| Wood White | 10th May | 14th May |
| Large Skipper | 29th May | 26th May |
| Marbled White | 19th June | 15th June |
| Black Hairstreak | 4th June | 3rd June |
| Meadow Brown | 2nd June | 1st June |
| Ringlet | 1st June | 9th June |
| Small Skipper | 21st June | 7th June |
| Essex Skipper | 23rd June | 26th June |
| White Admiral | 22nd June | 18th June |
| Purple Emperor | 1st July | 20th June |
| Gatekeeper | 4th July | 29th June |
| Purple Hairstreak | 3rd July | 22nd June |
| Silver-washed Fritillary | 18th June | 18th June |
| White-letter Hairstreak | 23rd June | 18th June |
| Brown Hairstreak | No sighting | |
| Clouded Yellow | 16th July | 6th June |
| Dark Green Fritillary | 20th June | 5th July |
| Chalkhill Blue | No sighting | |
| Monarch | No sighting | |
| Camberwell Beauty | No sighting |
Species |
First sighting 2017 |
First sighting 2016 |
| Peacock | 18th February | 6th January |
| Small Tortoiseshell | 8th January | 1st January |
| Red Admiral | 4th January | 25th January |
| Comma | 9th March | 11th March |
| Brimstone | 14th February | 10th February |
| Small White | 13th March | 8th February |
| Green-veined White | 7th April | 13th April |
| Orange Tip | 30th March | 8th April |
| Holly Blue | 30th March | 13th April |
| Speckled Wood | 1st April | 5th April |
| Large White | 30th March | 13th April |
| Dingy Skipper | 23rd April | 21st April |
| Grizzled Skipper | 23rd April | 23rd April |
| Green Hairstreak | 23rd April | 30th April |
| Painted Lady | 23rd May | 15th May |
| Small Heath | 5th May | 15th May |
| Small Copper | 5th May | 6th May |
| Common Blue | 5th May | 12th May |
| Brown Argus | 10th May | 10th May |
| Wood White | 7th May | 5th May |
| Large Skipper | 25th May | 29th May |
| Marbled White | 13th June | 18th June |
| Black Hairstreak | 3rd June | 17th June |
| Meadow Brown | 2nd June | 12th June |
| Ringlet | 11th June | 19th June |
| Small Skipper | 13th June | 22nd June |
| Essex Skipper | 18th June | 17th July |
| White Admiral | 14th June | 3rd July |
| Purple Emperor | 17th June | 4th July |
| Gatekeeper | 25th June | 6th July |
| Purple Hairstreak | 19th June | 1st July |
| Silver-washed Fritillary | 16th June | 28th June |
| White-letter Hairstreak | 16th June | 3rd July |
| Brown Hairstreak | 27th July | - |
| Clouded Yellow | 17th July | 24th June |
| Dark Green Fritillary | 20th June | - |
| Chalkhill Blue | 30th July | 22nd July |
| Monarch | 1st July | - |
| Camberwell Beauty | - |
Species |
First sighting 2015 |
First sighting 2014 |
| Peacock | 2nd January | 2nd January |
| Small Tortoiseshell | 24th January | 1st March |
| Red Admiral | 17th February | 22nd February |
| Comma | 7th March | 7th March |
| Brimstone | 17th February | 9th January |
| Small White | 27th March | 29th March |
| Green-veined White | 8th April | 8th April |
| Orange Tip | 8th April | 29th March |
| Holly Blue | 10th April | 31st March |
| Speckled Wood | 7th April | 8th April |
| Large White | 8th April | 16th April |
| Dingy Skipper | 21st April | 23rd April |
| Grizzled Skipper | 14th April | 23rd April |
| Green Hairstreak | 20th April | 21st April |
| Painted Lady | 13th May | 25th May |
| Small Heath | 4th May | 10th May |
| Small Copper | 8th May | 28th April |
| Common Blue | 10th May | 12th May |
| Brown Argus | 11th May | 14th May |
| Wood White | 10th May | 3rd May |
| Large Skipper | 30th May | 17th May |
| Marbled White | 16th June | 11th June |
| Black Hairstreak | 15th June | 8th June |
| Meadow Brown | 7th June | 5th June |
| Ringlet | 17th June | 11th June |
| Small Skipper | 21st June | 18th June |
| Essex Skipper | 28th June | 3rd July |
| White Admiral | 24th June | 18th June |
| Purple Emperor | 3rd July | 22nd June |
| Gatekeeper | 2nd July | 21st June |
| Purple Hairstreak | 4th July | 26th June |
| Silver-washed Fritillary | 24th June | 20th June |
| White-letter Hairstreak | 9th July | 19th June |
| Clouded Yellow | 8th August | 8th June |
| Dark Green Fritillary | 30th June | |
| Chalkhill Blue | 20th July | 7th August |
| Monarch | 28th August | |
| Camberwell Beauty | 30th August |
Species |
First sighting 2013 |
First sighting 2012 |
| Peacock | 17th February | 11th February |
| Small Tortoiseshell | 19th February | 2nd March |
| Red Admiral | 4th February | 11th January |
| Comma | 6th April | 11th March |
| Brimstone | 5th March | 23rd February |
| Small White | 20th April | 15th March |
| Green-veined White | 20th April | 19th March |
| Orange Tip | 20th April | 26th March |
| Holly Blue | 23rd April | 29th March |
| Speckled Wood | 25th April | 26th March |
| Large White | 10th April | 6th May |
| Dingy Skipper | 6th May | 22nd April |
| Grizzled Skipper | 1st May | 20th April |
| Green Hairstreak | 3rd May | 15th April |
| Painted Lady | 19th February | 18th June |
| Small Heath | 19th May | 16th May |
| Small Copper | 19th May | 12th May |
| Common Blue | 25th May | 22nd May |
| Brown Argus | 27th May | 22nd May |
| Wood White | 25th May | 11th May |
| Large Skipper | 14th June | 9th June |
| Marbled White | 27th June | 27th June |
| Black Hairstreak | 25th June | 19th June |
| Meadow Brown | 21st June | 20th June |
| Ringlet | 27th June | 25th June |
| Small Skipper | 30th June | 30th June |
| Essex Skipper | 11th July | 12th July |
| White Admiral | 9th July | 4th July |
| Purple Emperor | 11th July | 9th July |
| Gatekeeper | 12th July | 12th July |
| Purple Hairstreak | 8th July | 9th July |
| Silver-washed Fritillary | 12th July | 4th July |
| White-letter Hairstreak | 5th July | 7th July |
| Clouded Yellow | 20th June | 10th August |
| Chalkhill Blue | 15th August | - |
Species |
First sighting 2011 |
First sighting 2010 |
| Peacock | 24th February | 2nd March |
| Small Tortoiseshell | 9th February | 24th January |
| Red Admiral | 8th February | 14th March |
| Comma | 7th March | 16th March |
| Brimstone | 8th February | 2nd March |
| Small White | 21st March | 27th March |
| Green-veined White | 6th April | 14th April |
| Orange Tip | 27th March | 10th April |
| Holly Blue | 29th March | 17th April |
| Speckled Wood | 6th April | 8th April |
| Large White | 6th April | 8th April |
| Dingy Skipper | 20th April | 25th April |
| Grizzled Skipper | 20th April | 22nd April |
| Green Hairstreak | 16th April | 22nd April |
| Painted Lady | 6th April | 16th June |
| Small Heath | 25th April | 9th May |
| Small Copper | 22nd April | 27th April |
| Common Blue | 28th April | 10th May |
| Brown Argus | 25th April | 12th May |
| Wood White | 25th April | 13th May |
| Large Skipper | 19th May | 4th June |
| Small Blue | ||
| Marbled White | 12th June | 21st June |
| Black Hairstreak | 2nd June | 12th June |
| Meadow Brown | 1st June | 12th June |
| Ringlet | 7th June | 20th June |
| Small Skipper | 11th June | 22nd June |
| Essex Skipper | 4th July | 30th June |
| White Admiral | 11th June | 27th June |
| Purple Emperor | 23rd June | 30th June |
| Gatekeeper | 1st July | 30th June |
| Purple Hairstreak | 11th June | 30th June |
| Silver-washed Fritillary | 11th June | 26th June |
| White-letter Hairstreak | 10th June | 30th June |
| Clouded Yellow | 25th July | 12th July |
| Dark Green Fritillary | 9th July |
Species |
First sighting 2010 |
First sighting 2009 |
| Peacock | 2nd March | 21st February |
| Small Tortoiseshell | 24th January | 13th February |
| Red Admiral | 14th March | 26th January |
| Comma | 16th March | 15th March |
| Brimstone | 2nd March | 23rd February |
| Small White | 27th March | 4th April |
| Green-veined White | 14th April | 21st March |
| Orange Tip | 10th April | 8th April |
| Holly Blue | 17th April | 13th April |
| Speckled Wood | 8th April | 15th April |
| Large White | 8th April | 1st April |
| Dingy Skipper | 25th April | 21st April |
| Grizzled Skipper | 22nd April | 18th April |
| Green Hairstreak | 22nd April | 22nd April |
| Painted Lady | 16th June | 16th May |
| Small Heath | 9th May | 12th May |
| Small Copper | 27th April | 21st April |
| Common Blue | 10th May | 7th May |
| Brown Argus | 12th May | 11th May |
| Wood White | 13th May | 10th May |
| Large Skipper | 4th June | 29th May |
| Small Blue | ||
| Marbled White | 21st June | 18th June |
| Black Hairstreak | 12th June | 13th June |
| Meadow Brown | 12th June | 7th June |
| Ringlet | 20th June | 13th June |
| Small Skipper | 22nd June | 22nd June |
| Essex Skipper | 30th June | 1st July |
| White Admiral | 27th June | 24th June |
| Purple Emperor | 30th June | 29th June |
| Gatekeeper | 30th June | 4th July |
| Purple Hairstreak | 30th June | 27th June |
| Silver-washed Fritillary | 26th June | 21st June |
| White-letter Hairstreak | 30th June | 30th June |
| Clouded Yellow | 12th July | 30th May |
| Dark Green Fritillary | 9th July |