
| 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 | 50 | . | . | . | . | . | . | . | . | . | . | 2 | 9 | 10 | 8 | 4 | 3 | 1 | . | . | . | . | |||||
| Large Skipper | 39 | . | . | . | . | . | . | . | . | . | 3 | 16 | 3 | 4 | 1 | 1 | . | . | . | . | . | . | |||||
| Dingy Skipper | 3 | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | 7 | . | . | . | . | . | . | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 146 | 13 | 6 | 6 | 5 | 1 | 7 | 10 | 1 | . | 1 | . | . | . | 1 | . | 18 | 9 | 26 | 12 | 3 | 1 | |||||
| Large White | 54 | . | . | . | . | . | 3 | 7 | . | 3 | 2 | . | . | 3 | 5 | . | 6 | 7 | 2 | 1 | . | . | |||||
| Small White | 18 | . | . | . | . | . | 1 | . | . | . | 1 | . | . | 1 | 1 | 1 | 2 | 2 | 4 | . | 1 | . | |||||
| Green-veined White | 36 | . | . | . | 1 | . | 6 | 6 | 3 | . | . | . | . | . | . | 2 | 4 | 2 | 2 | . | . | . | |||||
| Small Copper | 5 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | |||||
| Common Blue | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | |||||
| Red Admiral | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | |||||
| Painted Lady | 13 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | 1 | 3 | . | 3 | . | 1 | . | |||||
| Small Tortoiseshell | 20 | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | 1 | 3 | 5 | 5 | 1 | |||||
| Peacock | 144 | 7 | 5 | 9 | 4 | 4 | 4 | 4 | 2 | . | . | . | . | . | 4 | 11 | 31 | 18 | 10 | 3 | 1 | 1 | |||||
| Comma | 25 | 5 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 6 | 1 | 3 | 2 | 1 | 2 | |||||
| Pearl-bordered Fritillary | 3 | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Silver-washed Fritillary | 13 | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 2 | 1 | 2 | . | 1 | . | . | . | |||||
| Speckled Wood | 113 | . | . | . | . | . | . | 2 | 2 | 3 | 8 | 6 | 1 | 2 | . | 12 | 8 | 7 | 7 | 16 | 17 | . | |||||
| Wall Brown | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||
| Marbled White | 6 | . | . | . | . | . | . | . | . | . | . | . | 3 | 1 | . | . | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 34 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 7 | 4 | 11 | 2 | . | . | . | . | |||||
| Meadow Brown | 276 | . | . | . | . | . | . | . | . | . | 6 | 46 | 34 | 44 | 44 | 13 | 11 | 6 | . | . | . | . | |||||
| Small Heath | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | |||||
| Ringlet | 55 | . | . | . | . | . | . | . | . | . | . | 13 | 8 | 19 | 4 | . | . | . | . | . | . | . | |||||