
| 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 | 46 | . | . | . | . | . | . | . | . | . | . | . | . | 12 | 12 | 8 | 7 | 1 | . | . | . | . | |||||
| Large Skipper | 20 | . | . | . | . | . | . | 1 | 5 | 5 | 3 | 4 | . | . | 1 | . | . | . | . | . | . | . | |||||
| Dingy Skipper | 16 | . | . | . | . | 6 | 3 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | 11 | . | . | . | 1 | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 31 | 2 | 10 | . | . | 5 | 1 | . | . | . | . | . | . | . | . | 1 | 4 | . | 3 | . | . | 1 | |||||
| Large White | 14 | . | . | . | . | . | 1 | . | 2 | 1 | 1 | . | . | . | . | 1 | 3 | 1 | 2 | 1 | . | . | |||||
| Small White | 16 | . | . | . | . | 1 | . | . | 1 | . | . | . | . | . | 3 | 4 | 3 | 1 | 2 | . | . | . | |||||
| Green-veined White | 12 | . | . | . | 1 | 2 | . | . | 1 | . | . | . | . | 1 | . | . | 3 | . | . | . | . | . | |||||
| Orange Tip | 5 | . | . | . | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | 6 | . | . | . | . | 2 | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brown Argus | 5 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | |||||
| Common Blue | 177 | . | . | . | . | . | 10 | 23 | 50 | 16 | 1 | 7 | 1 | . | . | 1 | 7 | 17 | 13 | 9 | 2 | 2 | |||||
| Chalk-hill Blue | 452 | . | . | . | . | . | . | . | . | . | . | . | . | 48 | 213 | 110 | 48 | 8 | 1 | . | . | . | |||||
| Duke of Burgundy Fritillary | 2 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Painted Lady | 3 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | |||||
| Small Tortoiseshell | 41 | 5 | 10 | 2 | . | . | . | . | . | . | 1 | 2 | 1 | . | 2 | 4 | 3 | 1 | . | 1 | . | 7 | |||||
| Peacock | 34 | 6 | 6 | 3 | 3 | 2 | . | . | . | . | . | . | . | . | . | 2 | 3 | 3 | . | . | . | . | |||||
| Comma | 3 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | |||||
| Dark Green Fritillary | 2 | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Speckled Wood | 4 | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | 1 | . | 1 | . | . | . | |||||
| Wall Brown | 25 | . | . | . | . | 1 | 7 | 1 | . | . | . | . | . | . | . | . | 2 | 5 | 4 | . | . | . | |||||
| Marbled White | 393 | . | . | . | . | . | . | . | . | . | 32 | 119 | 91 | 53 | 19 | 4 | 2 | 1 | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 12 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 7 | 2 | 1 | . | . | . | . | |||||
| Meadow Brown | 916 | . | . | . | . | . | . | 3 | 62 | 52 | 109 | 144 | 116 | 84 | 91 | 78 | 33 | 32 | 9 | 1 | . | . | |||||
| Small Heath | 73 | . | . | . | . | 5 | 12 | 9 | 15 | 3 | 8 | 4 | 2 | . | . | 1 | 1 | 1 | . | . | . | . | |||||
| Ringlet | 29 | . | . | . | . | . | . | . | . | . | 1 | 7 | 9 | 4 | 1 | . | . | . | . | . | . | . | |||||