
| 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 | 112 | . | . | . | . | . | . | . | 1 | 12 | 24 | 28 | 10 | 21 | . | . | . | . | |||||||||
| Large Skipper | 48 | . | . | . | . | . | . | . | 10 | 9 | . | . | . | . | . | . | . | . | |||||||||
| Dingy Skipper | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Grizzled Skipper | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Brimstone | 48 | . | 2 | 3 | . | 1 | 8 | 6 | . | . | 11 | 3 | . | 5 | . | 1 | . | . | |||||||||
| Large White | 12 | . | . | 2 | . | . | 1 | . | . | 1 | . | 3 | . | . | . | . | . | . | |||||||||
| Small White | 44 | . | . | . | . | . | . | . | . | . | 28 | 6 | . | 6 | . | 1 | . | . | |||||||||
| Green-veined White | 23 | . | . | . | . | . | . | . | . | . | 5 | 10 | 8 | . | . | . | . | . | |||||||||
| Orange Tip | 6 | . | . | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Small Copper | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||||||
| Brown Argus | 14 | . | . | . | . | . | . | . | . | . | . | 2 | . | 8 | 1 | . | . | . | |||||||||
| Common Blue | 26 | . | . | . | . | . | . | 1 | . | 1 | 1 | 1 | . | 8 | 4 | 3 | . | . | |||||||||
| White Admiral | 4 | . | . | . | . | . | . | . | . | 2 | . | . | . | 1 | . | . | . | . | |||||||||
| Red Admiral | 8 | . | . | . | . | . | . | . | . | 1 | 4 | . | . | 2 | . | . | . | . | |||||||||
| Painted Lady | 74 | . | . | . | . | 2 | 4 | 1 | . | . | . | 45 | 12 | 6 | . | . | . | . | |||||||||
| Small Tortoiseshell | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Peacock | 20 | 3 | 1 | . | . | . | 2 | . | . | . | 6 | 2 | . | 3 | . | 1 | . | . | |||||||||
| Comma | 3 | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | |||||||||
| Small Pearl-bordered Fritillary | 9 | . | . | . | . | . | 1 | 5 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Pearl-bordered Fritillary | 20 | . | . | . | 1 | 4 | 15 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Dark Green Fritillary | 5 | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | |||||||||
| Silver-washed Fritillary | 23 | . | . | . | . | . | . | . | . | 4 | 9 | 3 | 2 | . | 2 | . | . | . | |||||||||
| Speckled Wood | 16 | . | 1 | 1 | . | . | 1 | . | . | . | 1 | . | 1 | 1 | 1 | 5 | 3 | . | |||||||||
| Marbled White | 83 | . | . | . | . | . | . | . | 3 | 22 | 15 | 19 | 10 | 1 | . | . | . | . | |||||||||
| Gatekeeper / Hedge Brown | 308 | . | . | . | . | . | . | . | . | 3 | 46 | 91 | 32 | 84 | 5 | . | . | . | |||||||||
| Meadow Brown | 135 | . | . | . | . | . | . | . | 15 | 15 | . | 27 | . | 19 | 2 | . | . | . | |||||||||
| Ringlet | 159 | . | . | . | . | . | . | . | 20 | 31 | 48 | 11 | 11 | 9 | . | . | . | . | |||||||||