
| 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 | 62 | . | . | . | . | . | . | . | 4 | 9 | 3 | 25 | 13 | . | 1 | . | . | . | . | . | |||||||
| Large Skipper | 7 | . | . | . | . | . | . | 1 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Dingy Skipper | NI | . | . | . | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Grizzled Skipper | 2 | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Clouded Yellow | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 2 | . | 1 | . | |||||||
| Brimstone | 5 | . | . | . | 2 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||||||
| Large White | 24 | . | . | . | 1 | . | 3 | . | . | . | 5 | 4 | 2 | 1 | 2 | . | . | . | 1 | 2 | |||||||
| Small White | 15 | . | . | . | 3 | . | 1 | 1 | . | . | 1 | 1 | . | 3 | . | . | 1 | . | 1 | . | |||||||
| Orange Tip | 2 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 8 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | 2 | . | . | . | 2 | |||||||
| Small Blue | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Brown Argus | 12 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | 3 | . | 1 | 2 | |||||||
| Common Blue | 76 | . | . | . | . | . | 5 | 3 | 5 | 5 | . | 1 | 7 | 11 | 5 | 7 | 3 | 6 | 2 | 4 | |||||||
| Chalk-hill Blue | 640 | . | . | . | . | . | . | . | . | . | . | 27 | 127 | 100 | 166 | 138 | 42 | 2 | 11 | 6 | |||||||
| Holly Blue | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||||
| Red Admiral | 10 | . | . | . | . | . | . | . | . | 1 | 1 | 2 | . | 1 | . | 1 | . | . | . | 2 | |||||||
| Painted Lady | 4 | . | . | . | . | 1 | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | |||||||
| Small Tortoiseshell | 19 | . | . | . | 1 | 1 | . | . | . | 4 | 2 | 8 | 1 | . | . | . | . | . | . | . | |||||||
| Peacock | 5 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 1 | . | 2 | . | . | . | |||||||
| Comma | 3 | . | . | . | . | . | . | . | . | 1 | . | 2 | . | . | . | . | . | . | . | . | |||||||
| Dark Green Fritillary | 2 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | |||||||
| Speckled Wood | 25 | . | . | . | . | . | . | 1 | 3 | . | . | . | . | . | . | . | 1 | . | 8 | 5 | |||||||
| Wall Brown | 10 | . | . | . | . | 2 | 1 | . | . | . | . | . | 1 | 1 | 2 | 2 | . | . | . | . | |||||||
| Marbled White | 134 | . | . | . | . | . | . | . | . | 34 | 41 | 36 | 11 | . | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 87 | . | . | . | . | . | . | . | 1 | . | 1 | 5 | 40 | 7 | 6 | 12 | 5 | . | . | . | |||||||
| Meadow Brown | 922 | . | . | . | . | . | . | . | 20 | 110 | 103 | 125 | 175 | 63 | 84 | 70 | 39 | 25 | 18 | 7 | |||||||
| Small Heath | 249 | . | . | . | . | . | 17 | 20 | 21 | 44 | 24 | 24 | 14 | . | 4 | 2 | 5 | 1 | 4 | 13 | |||||||
| Ringlet | 70 | . | . | . | . | . | . | . | 3 | 12 | 28 | 17 | 1 | 2 | . | . | . | . | . | . | |||||||