
| 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 | 56 | . | . | . | . | . | . | . | . | . | 3 | . | . | 9 | 33 | 8 | 3 | . | . | . | . | ||||||
| Large Skipper | 34 | . | . | . | . | . | . | . | 1 | 2 | 3 | 7 | 12 | 6 | . | . | 1 | 2 | . | . | . | ||||||
| Clouded Yellow | 8 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 1 | ||||||
| Large White | 34 | . | . | . | . | . | . | 2 | . | 3 | . | 1 | . | 3 | 2 | . | 4 | 2 | . | 9 | 1 | ||||||
| Small White | 89 | . | 2 | 3 | 5 | 3 | 3 | 3 | 3 | . | . | 3 | 1 | 1 | 5 | 15 | 25 | 6 | 1 | 5 | . | ||||||
| Small Copper | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | ||||||
| Small Blue | 23 | . | . | . | . | 1 | 6 | 2 | 7 | 1 | . | . | . | 2 | . | 1 | . | . | . | . | . | ||||||
| Silver-studded Blue | 199 | . | . | . | . | . | . | . | . | 11 | 39 | 108 | 8 | 11 | 13 | 6 | . | . | . | 3 | . | ||||||
| Common Blue | 178 | . | . | . | . | . | 26 | 20 | 11 | 2 | 19 | 2 | 3 | 1 | 9 | 5 | 22 | 14 | 7 | 18 | 1 | ||||||
| Chalk-hill Blue | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 2 | . | . | . | . | . | ||||||
| Holly Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||
| Red Admiral | 6 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | 4 | . | ||||||
| Painted Lady | 13 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | 4 | 1 | ||||||
| Small Tortoiseshell | 5 | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | 1 | . | . | . | 2 | . | ||||||
| Peacock | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | ||||||
| Speckled Wood | 5 | . | 3 | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Wall Brown | 21 | . | . | . | . | 3 | . | . | . | . | . | . | . | . | 1 | 4 | 3 | 7 | 1 | 2 | . | ||||||
| Marbled White | 200 | . | . | . | . | . | . | . | . | . | 1 | 39 | 23 | 49 | 49 | 29 | 6 | 4 | . | . | . | ||||||
| Grayling | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | ||||||
| Gatekeeper / Hedge Brown | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | ||||||
| Meadow Brown | 409 | . | . | . | . | . | . | 1 | 18 | 29 | 41 | 108 | 21 | 67 | 57 | 26 | 23 | 14 | 1 | 4 | . | ||||||
| Small Heath | 18 | . | . | . | . | . | 1 | 5 | 4 | . | 6 | 1 | 1 | . | . | . | . | . | . | . | . | ||||||
| Ringlet | 4 | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 1 | . | . | . | . | . | . | ||||||
| Silver Y | NI | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||