
| 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 | 42 | . | . | . | . | . | . | . | . | . | . | 2 | 13 | 16 | 9 | 2 | 1 | . | . | . | . | ||||||
| Clouded Yellow | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 2 | . | . | ||||||
| Large White | 5 | . | . | . | . | 1 | . | . | . | . | . | . | 1 | . | 2 | . | . | . | . | . | . | ||||||
| Small White | 117 | . | . | . | 7 | 3 | 4 | 4 | 4 | . | 2 | 1 | 4 | 25 | 16 | 8 | 7 | 6 | 6 | 5 | 2 | ||||||
| Green-veined White | 3 | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | ||||||
| Brown Argus | 8 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 2 | 1 | . | . | . | ||||||
| Common Blue | 164 | . | . | . | . | . | 3 | 3 | 12 | 4 | 5 | . | . | . | 9 | 21 | 46 | 22 | 5 | 1 | . | ||||||
| Chalk-hill Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||
| Adonis Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||
| Holly Blue | 2 | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | 4 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | 1 | . | . | . | . | ||||||
| Painted Lady | 28 | . | . | . | . | . | 1 | . | . | 1 | . | . | 1 | 7 | 3 | 2 | 10 | . | . | . | . | ||||||
| Small Tortoiseshell | 8 | 1 | . | 6 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Peacock | 6 | . | . | . | 2 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 2 | ||||||
| Speckled Wood | 15 | . | . | . | 2 | . | . | . | 2 | . | 1 | 2 | 1 | 1 | 2 | . | 2 | . | . | . | 1 | ||||||
| Marbled White | 142 | . | . | . | . | . | . | . | . | . | 5 | 36 | 58 | 27 | 15 | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 90 | . | . | . | . | . | . | . | . | . | . | . | 11 | 17 | 25 | 12 | 14 | 2 | 2 | . | . | ||||||
| Meadow Brown | 549 | . | . | . | . | . | . | . | . | 1 | 30 | 99 | 63 | 114 | 95 | 39 | 54 | 25 | 1 | . | 1 | ||||||
| Small Heath | 15 | . | . | . | . | . | . | . | 2 | . | 2 | 3 | 2 | 2 | . | . | 1 | 2 | . | . | . | ||||||