
| 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 | 4 | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | . | . | . | . | . | ||||||
| Large Skipper | 2 | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 14 | . | . | . | 1 | 4 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Grizzled Skipper | 29 | . | . | . | 2 | 5 | 10 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 1 | . | . | ||||||
| Large White | NI | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | 1 | . | . | . | . | . | . | ||||||
| Small White | 43 | . | . | . | 3 | 2 | 2 | 1 | . | . | . | 2 | 2 | 3 | 1 | 3 | 4 | 8 | 1 | 1 | . | ||||||
| Green-veined White | 3 | . | . | . | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Orange Tip | 9 | . | . | . | 5 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | ||||||
| Brown Argus | NI | . | . | . | . | 1 | 2 | 2 | . | . | . | . | . | . | . | . | 7 | 2 | 1 | 1 | . | ||||||
| Common Blue | NI | . | . | . | . | . | 5 | 35 | 9 | 10 | 7 | . | . | . | . | 3 | 36 | 23 | 5 | 2 | 1 | ||||||
| Chalk-hill Blue | 321 | . | . | . | . | . | . | . | . | . | . | . | 7 | 40 | 34 | 36 | 87 | 46 | 9 | 1 | . | ||||||
| Adonis Blue | 17 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 3 | 3 | 5 | 3 | . | ||||||
| Red Admiral | 5 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | . | 2 | ||||||
| Painted Lady | 4 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | 1 | . | . | . | ||||||
| Small Tortoiseshell | 3 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | . | . | . | . | ||||||
| Peacock | 9 | 1 | 2 | 1 | 1 | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | ||||||
| Comma | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Dark Green Fritillary | 19 | . | . | . | . | . | . | . | . | . | . | 4 | 6 | 3 | 2 | 1 | . | . | . | . | . | ||||||
| Speckled Wood | 12 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | 2 | . | 1 | 6 | . | . | 1 | ||||||
| Wall Brown | NI | . | . | . | . | 2 | 3 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | ||||||
| Marbled White | 134 | . | . | . | . | . | . | . | . | . | . | 40 | 51 | 6 | 1 | 2 | . | . | . | . | . | ||||||
| Grayling | 33 | . | . | . | . | . | . | . | . | . | . | . | 12 | 6 | 5 | 4 | . | 1 | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 57 | . | . | . | . | . | . | . | . | . | . | . | 12 | 16 | 5 | 14 | . | . | . | . | . | ||||||
| Meadow Brown | 714 | . | . | . | . | . | . | . | . | 1 | 35 | 48 | 64 | 67 | 46 | 41 | 135 | 59 | 53 | 17 | 3 | ||||||
| Small Heath | 159 | . | . | . | . | . | 2 | 8 | 10 | 26 | 28 | 13 | 3 | . | . | . | 2 | 8 | 19 | 6 | 1 | ||||||