
| 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 | NI | . | . | . | . | . | . | . | . | . | 6 | 70 | 133 | 92 | 105 | 11 | 19 | 1 | 1 | . | . | ||||||
| Large Skipper | 66 | . | . | . | . | . | . | . | 3 | 22 | 23 | 10 | 6 | 2 | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 27 | . | . | 4 | 7 | 3 | 2 | 3 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Grizzled Skipper | 22 | . | . | 9 | 4 | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 277 | 10 | 9 | 14 | 14 | 5 | 1 | 10 | 1 | 3 | . | 1 | . | 6 | 24 | . | 58 | 27 | 38 | 21 | . | ||||||
| Large White | 143 | . | . | 1 | 1 | 8 | 2 | 4 | 5 | 4 | . | . | 4 | 2 | 4 | 21 | 38 | 27 | 7 | 9 | . | ||||||
| Small White | 236 | . | . | 3 | 1 | 5 | 7 | 9 | . | . | . | 7 | 14 | 5 | 10 | 9 | 77 | 20 | 28 | 23 | 3 | ||||||
| Green-veined White | 46 | . | 7 | 3 | 4 | 1 | 2 | 6 | 1 | 1 | . | . | . | 7 | 3 | . | 1 | . | . | 1 | . | ||||||
| Orange Tip | 15 | . | . | . | 4 | 2 | . | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 13 | . | . | . | 1 | 2 | 1 | 4 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 47 | . | . | . | 5 | 1 | . | 2 | . | . | 2 | 1 | 8 | 3 | 7 | 3 | 5 | 1 | 1 | 2 | 1 | ||||||
| Brown Argus | 6 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 4 | 1 | . | . | . | ||||||
| Common Blue | 86 | . | . | 1 | . | 4 | 6 | 14 | 3 | 5 | 2 | . | . | . | 1 | 2 | 11 | 3 | 22 | 7 | . | ||||||
| Holly Blue | 5 | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Duke of Burgundy Fritillary | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | 4 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | ||||||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | ||||||
| Small Tortoiseshell | 105 | 3 | 5 | . | . | . | . | . | . | 1 | 10 | 24 | 14 | 2 | . | . | 3 | 1 | 9 | 12 | 7 | ||||||
| Peacock | 88 | 9 | 4 | 6 | 1 | 1 | 1 | . | . | . | . | . | . | 3 | 3 | 3 | 24 | 16 | 3 | 2 | . | ||||||
| Comma | 20 | 7 | . | 1 | . | . | . | . | . | . | . | 1 | 1 | . | 1 | . | 3 | . | 1 | . | . | ||||||
| Small Pearl-bordered Fritillary | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Pearl-bordered Fritillary | 2 | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Dark Green Fritillary | 22 | . | . | . | . | . | . | . | . | 1 | 6 | 6 | 6 | 2 | 1 | . | . | . | . | . | . | ||||||
| Speckled Wood | 163 | . | . | 3 | 8 | 6 | 5 | 8 | 8 | 11 | 15 | 9 | 5 | 2 | 4 | 5 | 12 | 1 | 13 | 13 | 15 | ||||||
| Wall Brown | 47 | . | . | . | . | 9 | 4 | 10 | 1 | . | . | . | . | . | . | 1 | 7 | 6 | 4 | 2 | 1 | ||||||
| Gatekeeper / Hedge Brown | 397 | . | . | . | . | . | . | . | . | . | 1 | 2 | 62 | 96 | 147 | 25 | 47 | 16 | 1 | . | . | ||||||
| Meadow Brown | 1529 | . | . | . | . | . | . | . | 8 | 35 | 110 | 178 | 190 | 291 | 261 | 130 | 138 | 67 | 38 | 40 | 15 | ||||||
| Small Heath | 379 | . | . | . | 5 | 51 | 20 | 62 | 32 | 29 | 62 | 60 | 18 | 1 | 3 | 2 | 5 | 3 | 6 | 11 | . | ||||||
| Ringlet | 49 | . | . | . | . | . | . | . | . | . | . | 24 | 12 | 9 | 4 | . | . | . | . | . | . | ||||||