
| 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 | 26 | . | . | . | . | . | . | . | 3 | 10 | 3 | 7 | 2 | . | . | . | . | . | . | . | . | ||||||
| Large Skipper | 7 | . | . | . | . | . | . | . | . | 6 | . | . | . | . | . | . | . | 1 | . | . | . | ||||||
| Brimstone | 106 | 2 | . | 10 | 6 | 7 | 2 | . | . | 2 | 2 | 7 | 24 | . | . | 1 | . | . | . | . | . | ||||||
| Large White | 113 | . | . | . | . | . | 5 | . | . | 2 | 23 | . | 16 | . | . | 11 | 10 | 2 | . | . | . | ||||||
| Small White | 583 | . | . | 4 | 1 | 4 | . | 1 | 6 | 21 | 19 | 12 | 43 | 45 | 68 | 258 | 66 | 130 | 31 | 11 | 1 | ||||||
| Green-veined White | 15 | . | . | . | . | 2 | . | . | . | 5 | . | . | 2 | . | 1 | . | . | . | . | . | . | ||||||
| Orange Tip | 4 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brown Argus | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | ||||||
| Common Blue | 376 | . | . | . | 5 | 22 | 3 | . | . | 2 | 5 | 21 | 176 | 50 | 37 | 34 | . | 1 | . | 1 | . | ||||||
| Chalk-hill Blue | 52 | . | . | . | . | . | . | . | . | . | . | 52 | . | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | 26 | . | . | . | . | . | . | 3 | 3 | 4 | . | 1 | 3 | 1 | . | 1 | . | . | 1 | 1 | 7 | ||||||
| Painted Lady | 7 | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | 1 | 3 | . | 1 | . | . | . | ||||||
| Small Tortoiseshell | 129 | 1 | 1 | 3 | . | . | 7 | 10 | 20 | 46 | 2 | 1 | 11 | 1 | 11 | 13 | . | 2 | 1 | . | . | ||||||
| Peacock | 42 | 3 | . | 1 | . | . | . | . | . | 16 | 8 | 8 | 1 | . | . | . | . | . | . | . | . | ||||||
| Comma | 8 | . | . | . | . | . | . | . | . | 4 | . | . | . | . | . | 1 | . | 2 | . | . | 1 | ||||||
| Dark Green Fritillary | 2 | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | ||||||
| Silver-washed Fritillary | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||||
| Speckled Wood | 8 | . | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | 4 | 1 | . | . | . | . | ||||||
| Wall Brown | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | ||||||
| Marbled White | 131 | . | . | . | . | . | . | 25 | 49 | 41 | 6 | 1 | 1 | . | . | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 94 | . | . | . | . | . | . | . | 3 | 50 | 24 | 10 | 29 | 2 | . | . | . | . | . | . | . | ||||||
| Meadow Brown | 725 | . | . | . | . | . | 4 | 86 | 111 | 256 | 69 | 79 | 64 | 8 | 7 | 15 | . | . | . | . | . | ||||||
| Small Heath | 102 | . | . | . | 1 | . | 3 | 6 | 2 | 3 | . | . | . | 4 | 20 | 53 | 3 | 5 | . | . | 1 | ||||||
| Ringlet | 26 | . | . | . | . | . | . | . | 12 | 12 | . | . | . | . | . | . | . | . | . | . | . | ||||||