
| APR | MAY | JUN | JUL | AUG | SEP | ||||||||||||||||||||||
| Week no. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | |
| Site | Ind | ||||||||||||||||||||||||||
| Small Skipper | 232 | . | . | . | . | . | . | . | . | . | 10 | 60 | 58 | 42 | 42 | 9 | . | . | . | . | . | ||||||
| Essex Skipper | NI | . | . | . | . | . | . | . | . | . | . | . | 3 | 1 | 2 | . | . | . | . | . | . | ||||||
| Silver-spotted Skipper | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | . | . | . | . | . | ||||||
| Large Skipper | 10 | . | . | . | . | . | . | . | . | 3 | 1 | 2 | . | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 64 | . | . | . | . | 5 | 18 | 12 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Grizzled Skipper | 3 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 66 | 3 | . | 2 | 13 | 9 | 7 | 5 | . | . | . | 2 | 4 | 4 | 6 | . | . | . | . | . | . | ||||||
| Large White | 75 | . | . | . | . | . | . | 5 | 1 | 1 | . | 7 | 3 | 5 | 9 | 9 | 18 | 8 | 3 | . | 1 | ||||||
| Small White | 117 | . | . | . | . | 1 | 1 | . | . | . | 3 | 16 | 16 | 16 | 10 | 10 | 9 | 11 | 4 | 12 | 1 | ||||||
| Green-veined White | 12 | . | . | . | 2 | . | . | . | 2 | . | . | 1 | 2 | 1 | 1 | . | . | . | . | . | . | ||||||
| Orange Tip | 23 | . | . | . | . | 7 | 10 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 12 | . | . | . | . | . | 3 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 8 | . | . | . | . | . | 1 | . | . | . | . | . | 2 | . | 1 | . | 1 | . | . | . | . | ||||||
| Small Blue | 63 | . | . | . | . | . | 1 | 5 | 20 | 2 | . | 3 | . | . | . | . | . | . | . | . | . | ||||||
| Brown Argus | 30 | . | . | . | . | . | . | . | 2 | 2 | . | . | . | 2 | 3 | 4 | 4 | 5 | 3 | 1 | . | ||||||
| Common Blue | 204 | . | . | . | . | . | . | 12 | 18 | 19 | 6 | 3 | . | 3 | 7 | 11 | 7 | 20 | 6 | 13 | 4 | ||||||
| Chalk-hill Blue | 96 | . | . | . | . | . | . | . | . | . | . | 2 | 15 | 24 | 27 | 18 | 4 | 5 | 1 | . | . | ||||||
| Adonis Blue | 8 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | 1 | 2 | . | . | . | ||||||
| Holly Blue | 25 | . | . | 1 | 2 | 5 | 4 | . | . | . | . | 2 | 1 | 1 | 5 | 1 | . | . | . | . | . | ||||||
| Duke of Burgundy Fritillary | 30 | . | . | . | . | 1 | 15 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | 10 | . | . | . | . | . | 1 | . | . | 1 | . | . | 2 | 3 | . | . | . | 1 | . | 1 | . | ||||||
| Small Tortoiseshell | 18 | . | . | . | 2 | 2 | 2 | 1 | . | . | 2 | 5 | 2 | . | . | . | . | . | . | . | . | ||||||
| Peacock | 26 | 1 | . | 2 | 6 | 4 | 3 | . | . | . | . | . | . | 2 | 1 | . | . | . | 1 | . | 1 | ||||||
| Comma | 1 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Dark Green Fritillary | 13 | . | . | . | . | . | . | . | . | . | 2 | 3 | 3 | 1 | 2 | 1 | . | . | . | . | . | ||||||
| Speckled Wood | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 2 | 1 | ||||||
| Marbled White | 652 | . | . | . | . | . | . | . | . | 26 | 206 | 139 | 123 | 20 | 7 | 2 | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 701 | . | . | . | . | . | . | . | . | . | 1 | 50 | 199 | 217 | 156 | 73 | 2 | 2 | . | . | . | ||||||
| Meadow Brown | 1876 | . | . | . | . | . | . | . | 4 | 113 | 203 | 199 | 219 | 258 | 252 | 188 | 105 | 72 | 21 | 17 | 4 | ||||||
| Small Heath | 344 | . | . | . | . | . | 7 | 13 | 31 | 60 | 36 | 11 | 9 | 3 | 2 | 6 | 7 | 14 | 8 | 4 | . | ||||||
| Ringlet | 165 | . | . | . | . | . | . | . | . | 4 | 42 | 53 | 35 | 5 | 1 | . | . | . | . | . | . | ||||||