
| 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 | 3 | . | . | . | . | . | . | 1 | 1 | . | . | . | 1 | . | . | . | . | . | . | ||||||||
| Large Skipper | 19 | . | . | . | 4 | 2 | 5 | 3 | 5 | . | . | . | . | . | . | . | . | . | . | ||||||||
| Grizzled Skipper | NI | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Brimstone | 127 | 6 | 6 | 7 | 3 | . | 3 | . | . | 2 | 17 | 7 | 29 | 37 | 7 | 1 | 1 | . | 1 | ||||||||
| Large White | 45 | . | . | 1 | . | . | . | 6 | 1 | 4 | 1 | 21 | 1 | 6 | 1 | 2 | 1 | . | . | ||||||||
| Small White | 104 | . | 1 | . | 1 | . | 1 | . | 4 | 5 | 11 | 16 | 8 | 14 | 12 | 11 | 19 | . | 1 | ||||||||
| Green-veined White | 8 | 2 | 1 | . | . | . | . | . | . | . | 2 | . | 2 | . | 1 | . | . | . | . | ||||||||
| Orange Tip | NI | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Small Copper | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | ||||||||
| Brown Argus | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | ||||||||
| Common Blue | 18 | . | . | . | 1 | . | . | . | . | . | . | . | 4 | 2 | 9 | 1 | 1 | . | . | ||||||||
| Chalk-hill Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||||
| Holly Blue | 6 | . | 2 | . | . | . | . | . | . | . | 1 | . | . | 2 | . | 1 | . | . | . | ||||||||
| Red Admiral | 11 | . | . | . | . | . | 1 | . | 2 | 4 | 2 | . | . | . | 1 | . | . | 1 | . | ||||||||
| Painted Lady | 2 | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | . | . | . | . | . | ||||||||
| Small Tortoiseshell | 21 | . | . | 1 | . | . | . | 1 | 3 | 1 | 3 | . | . | . | 4 | 1 | 4 | 2 | 1 | ||||||||
| Peacock | 25 | 1 | . | . | . | . | . | . | . | 3 | 10 | 6 | 3 | 2 | . | . | . | . | . | ||||||||
| Comma | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||||||
| Speckled Wood | 14 | . | 3 | 1 | 2 | . | . | . | . | . | . | . | 1 | 2 | 3 | . | 2 | . | . | ||||||||
| Marbled White | 58 | . | . | . | . | 5 | 9 | 22 | 6 | 10 | 5 | 1 | . | . | . | . | . | . | . | ||||||||
| Gatekeeper / Hedge Brown | 126 | . | . | . | . | . | . | 4 | 27 | 25 | 25 | 24 | 10 | 11 | . | . | . | . | . | ||||||||
| Meadow Brown | 368 | . | . | . | 3 | 9 | 34 | 40 | 72 | 47 | 57 | 19 | 29 | 29 | 22 | 2 | 5 | . | . | ||||||||
| Ringlet | 119 | . | . | . | . | 17 | 14 | 44 | 34 | 8 | 2 | . | . | . | . | . | . | . | . | ||||||||