
| 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 | . | . | . | . | . | . | . | . | . | 1 | 5 | 7 | . | 1 | . | . | . | . | . | . | . | . | ||||
| Large Skipper | 10 | . | . | . | . | . | . | 1 | 1 | 3 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||
| Large White | 19 | . | . | 1 | 3 | 1 | . | . | . | . | . | 1 | . | 4 | 2 | 1 | 1 | 3 | 2 | . | . | . | . | ||||
| Small White | 42 | . | 1 | . | 2 | 1 | 2 | . | 2 | 2 | . | . | . | 2 | 8 | 9 | 7 | 3 | 1 | 2 | . | . | . | ||||
| Green-veined White | 65 | . | . | . | 6 | 5 | . | 4 | 1 | . | . | 2 | . | 5 | 8 | 21 | 9 | 2 | 2 | . | . | . | . | ||||
| Orange Tip | 5 | . | . | 3 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Small Copper | 31 | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | 3 | 3 | 5 | 4 | 3 | 2 | 9 | ||||
| Common Blue | 4 | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | ||||
| Holly Blue | 10 | . | 1 | . | 2 | . | . | . | . | . | . | . | . | . | 3 | 3 | 1 | . | . | . | . | . | . | ||||
| Red Admiral | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | ||||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | ||||
| Small Tortoiseshell | 8 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | 3 | . | . | . | 1 | . | 1 | . | ||||
| Peacock | 17 | 2 | . | 1 | 1 | 2 | 2 | 1 | . | . | . | . | . | . | 2 | . | 1 | 1 | . | . | . | . | . | ||||
| Comma | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | ||||
| Small Pearl-bordered Fritillary | 16 | . | . | . | . | . | 4 | 6 | 4 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| High Brown Fritillary | 3 | . | . | . | . | . | . | . | . | . | . | 2 | . | 1 | . | . | . | . | . | . | . | . | . | ||||
| Speckled Wood | 47 | . | . | 1 | 1 | . | 1 | 1 | 1 | 2 | . | . | . | 1 | 5 | 3 | 5 | 5 | 3 | 7 | 6 | 2 | 4 | ||||
| Marbled White | 4 | . | . | . | . | . | . | . | . | . | 1 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | ||||
| Gatekeeper / Hedge Brown | 110 | . | . | . | . | . | . | . | . | . | . | . | . | 5 | 19 | 28 | 23 | 17 | 11 | 7 | . | . | . | ||||
| Meadow Brown | 53 | . | . | . | . | . | . | . | . | 6 | 12 | 8 | 7 | 7 | 2 | 1 | . | . | 1 | . | 1 | . | . | ||||
| Small Heath | 47 | . | . | . | . | 7 | 9 | 13 | 2 | 2 | 2 | 1 | 1 | . | . | . | 2 | 2 | 4 | . | . | . | . | ||||
| Ringlet | 97 | . | . | . | . | . | . | . | . | . | 27 | 27 | 22 | 7 | . | . | . | . | . | . | . | . | . | ||||