
| 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 | ||||||||||||||||||||||||||
| Small Skipper | . | . | . | . | . | . | . | 6 | 2 | 68 | 58 | 56 | 2 | 8 | . | . | . | |||||||||
| Large Skipper | . | . | . | . | . | 2 | 30 | 6 | 46 | . | . | . | . | . | . | . | . | |||||||||
| Dingy Skipper | . | . | . | . | . | . | 4 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Grizzled Skipper | . | . | . | . | . | 6 | . | . | 4 | . | . | . | . | . | . | . | . | |||||||||
| Wood White | . | . | . | . | . | . | 6 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Clouded Yellow | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 4 | 4 | . | |||||||||
| Brimstone | 4 | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | . | . | . | |||||||||
| Large White | . | . | 2 | . | . | . | . | . | . | . | 4 | 38 | 14 | 30 | 8 | . | . | |||||||||
| Small White | . | . | . | . | . | 2 | . | . | 2 | 18 | 32 | 10 | 38 | 6 | . | 8 | . | |||||||||
| Green-veined White | . | 2 | 2 | 18 | . | . | . | . | . | . | 2 | 40 | . | 14 | 4 | . | . | |||||||||
| Orange Tip | . | 12 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Small Copper | . | . | . | 2 | . | 4 | 2 | . | 2 | . | 16 | 48 | 10 | 38 | . | 2 | 6 | |||||||||
| Common Blue | . | . | . | . | . | 16 | 16 | 4 | 6 | . | 14 | 96 | 80 | 244 | 22 | 16 | 8 | |||||||||
| Red Admiral | . | . | . | . | . | . | . | . | . | . | 2 | 6 | 2 | . | 12 | . | . | |||||||||
| Painted Lady | . | . | . | . | . | . | . | . | . | . | 6 | 2 | . | 2 | 12 | . | . | |||||||||
| Small Tortoiseshell | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 2 | 34 | 4 | 6 | |||||||||
| Peacock | 8 | 4 | . | 2 | . | . | . | . | . | . | 4 | 12 | 14 | . | 4 | . | . | |||||||||
| Comma | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | |||||||||
| Small Pearl-bordered Fritillary | . | . | . | . | . | . | 4 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Silver-washed Fritillary | . | . | . | . | . | . | . | . | . | . | 4 | 2 | 2 | . | . | . | . | |||||||||
| Speckled Wood | . | 2 | . | . | . | 2 | 6 | 10 | . | . | . | 4 | . | 8 | 16 | 14 | 20 | |||||||||
| Marbled White | . | . | . | . | . | . | . | 2 | 2 | 56 | 22 | 4 | . | . | . | . | . | |||||||||
| Gatekeeper/Hedge Brown | . | . | . | . | . | . | . | . | . | 144 | 150 | 100 | 58 | 10 | 142 | . | . | |||||||||
| Meadow Brown | . | . | . | . | . | . | 90 | 588 | 458 | 460 | 282 | 156 | 48 | 50 | 1016 | 2 | . | |||||||||
| Small Heath | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 8 | 82 | 2 | . | |||||||||
| Ringlet | . | . | . | . | . | . | 4 | 20 | 128 | . | . | . | . | 2 | . | . | . | |||||||||