
| 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 | 21 | . | . | . | . | . | . | . | . | . | 3 | . | 1 | 2 | 5 | 1 | 4 | 5 | . | . | . | . | |||||
| Large Skipper | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||||
| Large White | 40 | . | . | . | . | 1 | 1 | 3 | 4 | . | . | . | 3 | 1 | 2 | 6 | 8 | 7 | . | . | . | . | |||||
| Small White | 16 | . | . | . | . | 3 | . | 2 | 2 | . | . | 1 | . | 1 | 2 | 2 | . | . | . | . | . | . | |||||
| Green-veined White | 72 | . | . | . | 4 | 7 | 5 | . | . | 1 | 1 | . | . | . | 5 | 10 | 14 | 3 | 6 | . | . | 1 | |||||
| Orange Tip | 3 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 10 | . | . | . | . | . | . | 6 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||
| Common Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | |||||
| Red Admiral | 6 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | 1 | . | |||||
| Small Tortoiseshell | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | |||||
| Peacock | 10 | . | 1 | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | |||||
| Comma | 4 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | |||||
| Small Pearl-bordered Fritillary | 13 | . | . | . | . | . | . | 1 | . | 2 | 3 | 1 | 1 | 4 | . | . | . | . | . | . | . | . | |||||
| Dark Green Fritillary | 11 | . | . | . | . | . | . | . | . | . | . | . | 5 | 1 | 3 | 1 | . | 1 | . | . | . | . | |||||
| Silver-washed Fritillary | 5 | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 2 | . | . | . | . | . | . | . | |||||
| Speckled Wood | 476 | 5 | 2 | 1 | . | 6 | 23 | 33 | 26 | 15 | 8 | 3 | 1 | . | 8 | 5 | 22 | 30 | 48 | 132 | 38 | 20 | |||||
| Wall Brown | 32 | . | . | . | . | 3 | 3 | . | . | . | . | . | . | . | . | 2 | 16 | 1 | 1 | 1 | . | . | |||||
| Grayling | 61 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 3 | 7 | 16 | 18 | 9 | 3 | 3 | 1 | |||||
| Gatekeeper / Hedge Brown | 361 | . | . | . | . | . | . | . | 1 | . | 2 | . | 3 | 5 | 76 | 101 | 76 | 59 | 34 | 3 | . | 1 | |||||
| Meadow Brown | 243 | . | . | . | . | . | . | . | . | 7 | 16 | 36 | 42 | 52 | 32 | 20 | 17 | 21 | . | . | . | . | |||||
| Small Heath | 22 | . | . | . | . | . | . | . | . | . | 5 | 1 | 6 | 4 | 4 | 2 | . | . | . | . | . | . | |||||
| Ringlet | 4 | . | . | . | . | . | . | . | . | . | 1 | 1 | 1 | 1 | . | . | . | . | . | . | . | . | |||||