
| 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 | 14 | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 5 | . | . | . | . | ||||||||
| Large Skipper | 3 | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | ||||||||
| Dingy Skipper | 12 | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Grizzled Skipper | 3 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Brimstone | 4 | . | . | . | 1 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Large White | 55 | . | . | . | . | . | 1 | 2 | . | 1 | 1 | . | 4 | 23 | 5 | 4 | . | . | . | ||||||||
| Small White | 63 | . | . | . | . | . | . | 3 | . | . | . | . | 5 | 2 | 5 | . | 9 | 11 | 1 | ||||||||
| Green-veined White | 42 | . | . | . | . | 2 | 1 | . | . | . | 2 | 2 | . | 1 | 11 | 3 | 4 | 2 | . | ||||||||
| Orange Tip | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Green Hairstreak | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Small Copper | 8 | . | . | . | . | . | . | . | . | . | . | . | 6 | . | . | . | . | 1 | . | ||||||||
| Brown Argus | 13 | . | . | . | . | . | . | . | 12 | . | . | . | . | . | 1 | 3 | 2 | 1 | 1 | ||||||||
| Common Blue | 72 | . | . | . | . | . | . | 1 | 2 | . | . | . | . | . | 12 | 7 | 11 | 8 | 3 | ||||||||
| Chalk-hill Blue | 31 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 10 | 5 | 1 | . | ||||||||
| Adonis Blue | 23 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 10 | 1 | . | ||||||||
| Holly Blue | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | ||||||||
| Red Admiral | 2 | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | ||||||||
| Painted Lady | 4 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||||
| Small Tortoiseshell | 16 | . | . | . | 1 | . | . | . | . | 1 | . | 1 | 1 | . | . | . | 5 | 1 | . | ||||||||
| Peacock | 7 | . | . | 11 | 2 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | ||||||||
| Speckled Wood | 7 | . | . | . | . | . | 2 | . | 1 | . | . | . | . | . | 1 | . | 1 | . | . | ||||||||
| Wall Brown | 5 | . | . | . | . | . | . | 2 | . | . | . | . | . | . | 1 | . | 1 | . | . | ||||||||
| Marbled White | 166 | . | . | . | . | . | . | . | . | 8 | 12 | 40 | 33 | 41 | 6 | . | . | . | . | ||||||||
| Gatekeeper / Hedge Brown | 35 | . | . | . | . | . | . | . | . | . | . | . | . | 13 | 2 | 8 | . | 9 | . | ||||||||
| Meadow Brown | 562 | . | . | . | . | . | . | . | . | 33 | 15 | 9 | 25 | 37 | 61 | 98 | 60 | 21 | 1 | ||||||||
| Small Heath | 163 | . | . | . | . | . | 12 | 4 | 13 | 10 | 22 | 11 | 21 | 6 | 1 | 2 | 15 | 9 | . | ||||||||
| Ringlet | 168 | . | . | . | . | . | . | . | . | 43 | 53 | 37 | 20 | 10 | . | . | . | . | . | ||||||||