
| 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 | 52 | . | . | . | . | . | . | . | 1 | 8 | 15 | 19 | 5 | 4 | . | . | . | . | |||||||||
| Large Skipper | 7 | . | . | . | . | . | . | . | . | . | 1 | . | 6 | . | . | . | . | . | |||||||||
| Dingy Skipper | 5 | . | . | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Large White | 72 | . | . | . | 1 | 2 | . | 1 | 1 | . | . | 7 | 8 | 14 | 20 | 2 | 2 | . | |||||||||
| Small White | 72 | 3 | 5 | . | 1 | 3 | 1 | 4 | . | . | . | 12 | 6 | 10 | 12 | 1 | 4 | . | |||||||||
| Green-veined White | 15 | . | 2 | 1 | 3 | 1 | . | . | . | . | . | . | 6 | . | . | . | . | . | |||||||||
| Orange Tip | 6 | . | . | 1 | 2 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Small Copper | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | |||||||||
| Northern Brown Argus | 4 | . | . | . | . | . | . | 1 | 3 | . | . | . | . | . | . | . | . | . | |||||||||
| Common Blue | 40 | . | . | . | . | . | 1 | 6 | 9 | 4 | 7 | 7 | 1 | 5 | . | . | . | . | |||||||||
| Red Admiral | 4 | . | . | . | . | . | . | . | . | 1 | . | 2 | . | . | . | . | . | 1 | |||||||||
| Small Tortoiseshell | 3 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | |||||||||
| Peacock | 41 | 1 | 1 | 2 | . | . | 1 | 1 | . | . | . | . | . | 11 | 16 | . | . | . | |||||||||
| Wall Brown | 14 | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | 5 | 3 | . | . | |||||||||
| Gatekeeper / Hedge Brown | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | |||||||||
| Meadow Brown | 126 | . | . | . | . | . | . | . | 14 | 30 | 15 | 21 | 27 | 14 | 3 | . | . | . | |||||||||
| Small Heath | 109 | . | . | . | . | 4 | 5 | 14 | 24 | 7 | 6 | 14 | 14 | 13 | . | . | . | 2 | |||||||||
| Ringlet | 123 | . | . | . | . | 1 | . | . | 20 | 44 | 28 | 23 | 4 | 2 | 1 | . | . | . | |||||||||