
| 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 | 71 | . | . | . | . | . | . | . | . | . | 31 | 6 | . | . | . | . | . | . | |||||||||
| Large Skipper | 59 | . | . | . | . | . | . | . | 3 | 12 | 19 | 2 | . | . | . | . | . | . | |||||||||
| Clouded Yellow | 6 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 3 | 1 | . | 1 | |||||||||
| Brimstone | 12 | 1 | 1 | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Large White | 11 | . | . | . | . | . | . | . | . | . | 1 | . | 1 | 4 | . | . | . | . | |||||||||
| Small White | 20 | . | 1 | . | . | . | . | . | . | . | . | 2 | 5 | 5 | . | . | 2 | . | |||||||||
| Green-veined White | 1 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Green Hairstreak | 19 | . | . | . | 4 | 4 | 3 | 1 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Small Copper | 40 | . | . | . | 3 | . | . | . | . | . | 1 | 6 | 9 | 3 | 1 | 5 | . | 2 | |||||||||
| Silver-studded Blue | 7 | . | . | . | . | . | . | . | . | . | 3 | 1 | . | 2 | . | . | . | . | |||||||||
| Brown Argus | 62 | . | . | . | 14 | 2 | . | 1 | . | . | . | 14 | . | 13 | 4 | . | . | . | |||||||||
| Common Blue | 173 | . | . | . | . | 4 | 3 | . | . | . | . | 55 | 42 | 8 | 5 | 7 | . | . | |||||||||
| Holly Blue | 1 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Red Admiral | 25 | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | . | 8 | 9 | 1 | |||||||||
| Painted Lady | 2 | . | . | . | . | . | 1 | . | . | . | . | . | . | 1 | . | . | . | . | |||||||||
| Small Tortoiseshell | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | |||||||||
| Peacock | 30 | 3 | 2 | . | 2 | . | . | . | . | 1 | 1 | 8 | . | 3 | 2 | 1 | 1 | . | |||||||||
| Comma | 20 | 1 | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | 11 | |||||||||
| Speckled Wood | 12 | . | . | 1 | 1 | . | . | . | . | . | . | 1 | 1 | 4 | 1 | 1 | . | 1 | |||||||||
| Marbled White | 49 | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | |||||||||
| Grayling | 148 | . | . | . | . | . | . | . | . | . | 15 | 14 | 53 | 31 | 13 | 8 | 4 | . | |||||||||
| Gatekeeper / Hedge Brown | 263 | . | . | . | . | . | . | . | . | 2 | 21 | 56 | 54 | 28 | 2 | 12 | . | . | |||||||||
| Meadow Brown | 376 | . | . | . | . | . | . | 2 | 14 | 30 | 76 | 126 | 62 | 38 | 16 | 11 | 1 | . | |||||||||
| Small Heath | 38 | . | . | . | . | 1 | 1 | 2 | 6 | 6 | . | . | . | 4 | 2 | 3 | 4 | . | |||||||||