
| 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 | 106 | . | . | . | . | . | . | . | . | . | 1 | 11 | 7 | 6 | 7 | 1 | 1 | . | . | . | . | ||||||
| Large Skipper | 10 | . | . | . | . | . | . | . | 17 | 14 | 3 | . | . | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | . | . | . | . | . | . | 2 | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | ||||||
| Brimstone | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | ||||||
| Large White | 34 | . | . | 1 | . | . | . | . | . | . | . | . | 1 | 1 | 4 | 6 | 1 | 2 | . | . | 1 | ||||||
| Small White | 49 | . | . | . | . | 1 | 1 | . | 1 | 1 | . | 1 | 11 | 24 | 14 | 10 | 9 | 1 | . | 2 | 1 | ||||||
| Green-veined White | 8 | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 9 | . | . | . | . | 1 | . | ||||||
| Orange Tip | . | . | . | 1 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 11 | . | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | 1 | 2 | 1 | 1 | 1 | . | ||||||
| Small Blue | 1 | . | . | . | . | . | . | . | 5 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brown Argus | 19 | . | . | . | . | . | 1 | . | . | . | . | . | . | 1 | 5 | 4 | 5 | 3 | . | 1 | . | ||||||
| Common Blue | 72 | . | . | . | . | . | 2 | 23 | 14 | 15 | 3 | . | 2 | 3 | 3 | 6 | 5 | 6 | 5 | 6 | 2 | ||||||
| Chalk-hill Blue | 34 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 6 | 3 | 6 | 5 | 3 | 2 | 1 | ||||||
| Adonis Blue | 13 | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | 2 | 4 | 2 | 1 | . | ||||||
| Holly Blue | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Painted Lady | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | ||||||
| Small Tortoiseshell | 36 | . | . | 1 | 2 | . | . | . | . | 1 | 1 | 9 | 7 | 3 | 3 | . | . | . | . | . | . | ||||||
| Peacock | 1 | 1 | 1 | 1 | . | 1 | 1 | . | . | . | . | . | 1 | 1 | 3 | . | . | . | . | . | . | ||||||
| Comma | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Dark Green Fritillary | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 1 | . | . | . | . | ||||||
| Marsh Fritillary | 1 | . | . | . | . | . | 5 | 4 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Speckled Wood | 11 | . | . | . | . | 1 | . | . | . | . | 1 | . | . | 1 | . | 1 | . | . | 1 | 2 | 1 | ||||||
| Marbled White | 305 | . | . | . | . | . | . | . | . | 7 | 47 | 17 | 1 | 1 | 1 | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 289 | . | . | . | . | . | . | . | . | . | . | 19 | 80 | 105 | 101 | 57 | 33 | 5 | . | . | . | ||||||
| Meadow Brown | 339 | . | . | . | . | . | . | . | . | 24 | 31 | 32 | 23 | 30 | 19 | 20 | 26 | 5 | 1 | . | . | ||||||
| Small Heath | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Ringlet | 149 | . | . | . | . | . | . | . | . | 2 | 23 | 6 | 3 | . | 1 | . | . | . | . | . | . | ||||||