
| 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 | ||||||||||||||||||||||||||
| Large Skipper | 24 | . | . | . | . | . | . | . | . | . | 1 | 5 | 13 | 2 | 3 | . | . | . | . | . | . | ||||||
| Large White | 23 | . | . | . | . | . | . | 2 | 5 | . | . | . | . | . | . | . | . | 2 | 12 | 2 | . | ||||||
| Small White | 22 | . | . | . | . | 6 | . | 1 | 4 | . | . | 2 | . | . | . | . | 2 | 3 | 4 | . | . | ||||||
| Green-veined White | 9 | . | . | . | . | 1 | 1 | 1 | . | . | . | . | . | . | . | . | . | 1 | . | 3 | 1 | ||||||
| Small Copper | 16 | . | . | . | . | . | 1 | . | 2 | 1 | . | . | . | . | . | 1 | . | . | . | 4 | 4 | ||||||
| Silver-studded Blue | 200 | . | . | . | . | . | . | . | . | . | . | 8 | 21 | 61 | 77 | 11 | 13 | 4 | 1 | 3 | . | ||||||
| Common Blue | 72 | . | . | . | . | . | . | 4 | 7 | 3 | 9 | 5 | 5 | . | . | 2 | . | . | 10 | 6 | 14 | ||||||
| Red Admiral | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||
| Small Tortoiseshell | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Peacock | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | ||||||
| Small Pearl-bordered Fritillary | 22 | . | . | . | . | . | . | . | . | . | 3 | 13 | 6 | . | . | . | . | . | . | . | . | ||||||
| Dark Green Fritillary | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Wall Brown | 24 | . | . | . | . | . | 1 | 6 | 5 | 1 | 2 | . | . | . | . | . | . | . | 2 | 1 | 4 | ||||||
| Grayling | 18 | . | . | . | . | . | . | . | . | . | . | . | . | . | 7 | 1 | 3 | 3 | . | . | 2 | ||||||
| Gatekeeper / Hedge Brown | 78 | . | . | . | . | . | . | . | . | . | . | . | . | . | 7 | 3 | 25 | 18 | 13 | 9 | 1 | ||||||
| Meadow Brown | 114 | . | . | . | . | . | . | . | . | . | 1 | 3 | 19 | 30 | 31 | 8 | 7 | 4 | 8 | 1 | 1 | ||||||
| Small Heath | 62 | . | . | . | . | . | . | 1 | . | 4 | 15 | 20 | 12 | 5 | 2 | . | . | 1 | . | 1 | . | ||||||