
| 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/Essex Skipper | 685 | . | . | . | . | . | . | . | . | . | . | . | 43 | 18 | . | . | 1 | . | . | . | . | ||||||
| Small Skipper | NI | . | . | . | . | . | . | . | . | . | 1 | . | 40 | 19 | 13 | . | 1 | . | . | . | . | ||||||
| Essex Skipper | NI | . | . | . | . | . | . | . | . | . | 2 | 29 | 213 | 102 | 56 | . | 1 | . | . | . | . | ||||||
| Large White | 48 | . | . | 1 | 1 | . | 1 | . | . | . | . | . | 5 | 6 | 4 | 4 | 13 | 1 | 2 | . | . | ||||||
| Small White | 93 | . | . | . | . | 2 | 1 | . | . | . | . | . | . | 4 | 10 | 3 | 43 | 13 | 4 | . | . | ||||||
| Green-veined White | 177 | . | . | 6 | 22 | 10 | 1 | . | . | 3 | 1 | 5 | 11 | 12 | 7 | 3 | 11 | 19 | 16 | 2 | 1 | ||||||
| Orange Tip | 5 | . | . | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 29 | . | . | 2 | 11 | 1 | 5 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 29 | . | . | . | . | 2 | . | . | . | . | . | . | . | 5 | 6 | 1 | 9 | 1 | . | . | . | ||||||
| Brown Argus | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | ||||||
| Common Blue | 111 | . | . | . | . | . | 2 | 10 | 4 | 1 | . | . | 1 | 4 | 22 | 17 | 24 | 11 | . | . | . | ||||||
| Red Admiral | 29 | . | . | . | . | . | . | . | . | 3 | . | . | . | 3 | . | 1 | 11 | 4 | 1 | . | 1 | ||||||
| Painted Lady | 11 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 11 | . | . | . | . | ||||||
| Small Tortoiseshell | 43 | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | 33 | 2 | 1 | . | . | ||||||
| Peacock | 43 | 1 | 1 | . | . | 1 | . | . | . | . | . | . | . | . | 7 | 1 | 30 | . | . | . | . | ||||||
| Wall Brown | 45 | . | . | . | . | 5 | 8 | 1 | . | . | . | . | . | . | 9 | 13 | 10 | 1 | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 91 | . | . | . | . | . | . | . | . | . | . | 1 | 22 | 24 | 19 | 2 | . | . | . | . | . | ||||||
| Meadow Brown | 1859 | . | . | . | . | . | . | . | 1 | 29 | 192 | 348 | 366 | 276 | 244 | 37 | 42 | 1 | 1 | . | . | ||||||
| Small Heath | 320 | . | . | . | . | 1 | 9 | 34 | 25 | 18 | 17 | 56 | 1 | 2 | 5 | 13 | 34 | 48 | 5 | . | . | ||||||
| Ringlet | 75 | . | . | . | . | . | . | . | 1 | . | 22 | 16 | 19 | 5 | . | . | . | . | . | . | . | ||||||
| Unknown White | NI | . | . | . | . | . | 3 | . | . | . | . | 1 | 1 | 3 | 3 | 1 | 3 | 3 | 1 | . | . | ||||||