
| 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 | ||||||||||||||||||||||||||
| Large Skipper | . | . | . | . | . | . | . | . | . | 6 | 4 | . | . | . | . | . | . | . | . | . | . | |||||
| Dingy Skipper | . | . | . | . | 8 | 8 | 20 | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | . | 4 | 8 | 6 | 6 | . | 16 | . | . | . | . | . | . | . | 2 | . | 6 | . | . | . | . | |||||
| Large White | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | . | . | . | . | . | . | |||||
| Small White | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | 6 | 2 | . | 4 | . | |||||
| Green-veined White | . | . | 16 | 12 | 4 | 4 | 2 | . | . | . | . | . | 2 | 2 | . | . | . | . | . | . | . | |||||
| Northern Brown Argus | . | . | . | . | . | . | . | . | . | . | 4 | 2 | 4 | 2 | . | . | . | . | . | . | . | |||||
| Common Blue | . | . | . | . | . | . | 12 | 12 | 4 | 4 | 8 | 8 | 4 | 2 | . | . | 2 | 2 | . | 2 | . | |||||
| Holly Blue | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | |||||
| Red Admiral | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Painted Lady | . | . | . | . | . | . | . | 2 | 4 | 2 | 2 | . | . | . | . | . | . | 4 | . | . | 2 | |||||
| Small Tortoiseshell | 2 | 8 | 2 | 4 | . | . | . | . | . | . | 2 | 2 | . | 4 | . | . | . | . | . | . | . | |||||
| Peacock | 2 | 4 | 2 | 2 | . | . | . | . | . | . | . | 2 | . | . | . | 4 | 2 | 2 | 2 | 2 | . | |||||
| Comma | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | |||||
| Small Pearl-bordered Fritillary | . | . | . | . | . | . | . | . | 28 | 12 | 6 | 4 | . | . | . | . | . | . | . | . | . | |||||
| Pearl-bordered Fritillary | . | . | . | . | 22 | 14 | 24 | 18 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| High Brown Fritillary | . | . | . | . | . | . | . | . | 26 | 14 | 48 | 230 | 118 | 68 | 20 | 14 | 4 | 4 | . | . | . | |||||
| Dark Green Fritillary | . | . | . | . | . | . | . | . | 2 | 2 | 6 | 38 | 94 | 102 | 34 | 22 | 2 | . | . | . | . | |||||
| Speckled Wood | . | 6 | 16 | 30 | 26 | 12 | 8 | 12 | 24 | 18 | 40 | 10 | 8 | 28 | 8 | 26 | 26 | 38 | 22 | 24 | 38 | |||||
| Wall Brown | . | . | . | . | 14 | 8 | 22 | 6 | 2 | 6 | 4 | . | . | . | . | 16 | 32 | 28 | 2 | 10 | . | |||||
| Scotch Argus | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 448 | 1330 | 448 | 104 | . | . | . | |||||
| Grayling | . | . | . | . | . | . | . | . | 4 | 4 | 2 | . | . | 6 | 6 | 2 | 6 | . | . | . | . | |||||
| Gatekeeper/Hedge Brown | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | |||||
| Meadow Brown | . | . | . | . | . | . | . | . | 24 | 20 | 60 | 164 | 210 | 176 | 132 | 94 | 40 | 12 | . | . | . | |||||
| Small Heath | . | . | . | . | . | 2 | 50 | 46 | 24 | 38 | 18 | . | 8 | 8 | . | . | . | . | . | . | . | |||||