
| 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 | 65 | . | . | . | . | . | . | . | . | . | . | . | . | 9 | 23 | 19 | 5 | 8 | . | . | . | . | . | ||||
| Large Skipper | 33 | . | . | . | . | . | . | . | 2 | . | 7 | 9 | 8 | 4 | 2 | 1 | . | . | . | . | . | . | . | ||||
| Grizzled Skipper | 15 | . | . | . | . | . | 2 | 3 | 4 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Brimstone | 12 | 1 | 2 | 2 | 1 | 2 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 1 | ||||
| Large White | 28 | . | . | . | 1 | 2 | 1 | . | . | . | 1 | . | 1 | 2 | 1 | 8 | 4 | 3 | 2 | . | . | . | . | ||||
| Small White | 97 | . | . | . | 2 | 1 | . | . | . | . | . | 2 | 3 | 7 | 13 | 14 | 12 | 14 | 6 | 10 | 7 | 1 | . | ||||
| Green-veined White | 38 | . | . | . | 1 | 2 | 2 | 1 | 1 | . | . | . | . | 2 | 5 | 3 | 6 | 4 | 3 | 2 | 1 | . | 1 | ||||
| Orange Tip | 9 | . | . | 1 | 3 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Purple Hairstreak | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||
| Small Copper | 51 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 12 | 8 | 8 | 8 | 5 | 3 | . | 4 | ||||
| Brown Argus | 12 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 4 | 4 | 2 | . | . | . | ||||
| Common Blue | 33 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 3 | 4 | 5 | 10 | 5 | . | . | ||||
| Chalk-hill Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||
| White Admiral | 11 | . | . | . | . | . | . | . | . | . | . | . | 4 | 6 | . | 1 | . | . | . | . | . | . | . | ||||
| Red Admiral | 9 | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | 1 | 1 | 1 | . | 2 | 1 | . | . | ||||
| Painted Lady | 4 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 3 | . | . | . | . | . | . | . | ||||
| Small Tortoiseshell | 15 | 1 | . | . | . | . | . | . | . | . | . | 1 | . | 2 | 1 | . | 1 | 2 | . | 2 | 2 | 1 | . | ||||
| Peacock | 158 | 8 | 10 | 12 | 5 | 8 | 5 | 3 | 1 | . | . | . | . | . | 5 | 54 | 12 | 12 | 3 | . | . | . | . | ||||
| Comma | 10 | 1 | 1 | 1 | 1 | . | . | . | . | . | . | . | . | 3 | . | . | 1 | . | . | . | . | . | 1 | ||||
| Dark Green Fritillary | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||
| Silver-washed Fritillary | 52 | . | . | . | . | . | . | . | . | . | . | 1 | 11 | 13 | 10 | 9 | 2 | 3 | 3 | . | . | . | . | ||||
| Speckled Wood | 149 | . | . | . | . | . | . | . | 4 | 4 | 7 | 2 | 2 | 2 | 3 | 1 | 5 | 11 | 29 | 18 | 18 | 17 | 6 | ||||
| Wall Brown | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | ||||
| Marbled White | 7 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 4 | 2 | . | . | . | . | . | . | . | ||||
| Gatekeeper / Hedge Brown | 210 | . | . | . | . | . | . | . | . | . | . | . | . | 19 | 32 | 39 | 44 | 41 | 18 | 9 | 5 | . | . | ||||
| Meadow Brown | 203 | . | . | . | . | . | . | . | . | 10 | 13 | 30 | 32 | 40 | 17 | 25 | 13 | 16 | 3 | 2 | 1 | . | . | ||||
| Small Heath | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||
| Ringlet | 269 | . | . | . | . | . | . | . | . | 6 | 44 | 85 | 62 | 57 | 13 | 2 | . | . | . | . | . | . | . | ||||