
| 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 | 7 | . | . | . | . | . | . | . | . | . | . | 2 | 2 | 2 | . | . | . | . | . | . | |||||||
| Large Skipper | 2 | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Dingy Skipper | 4 | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Clouded Yellow | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||||
| Brimstone | 97 | . | 12 | 17 | . | 1 | 8 | 7 | 2 | . | 1 | . | . | 1 | 2 | 1 | 2 | 1 | . | 12 | |||||||
| Large White | 17 | . | . | . | . | . | . | . | . | . | . | . | . | 5 | 5 | 4 | 2 | 2 | . | . | |||||||
| Small White | 103 | . | . | 1 | . | 1 | 7 | 4 | 2 | . | 2 | . | . | 1 | 9 | 6 | 15 | 15 | . | 9 | |||||||
| Green-veined White | 3 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||||
| Orange Tip | 7 | . | . | . | . | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 11 | . | . | . | . | 2 | 1 | . | . | 1 | 1 | . | . | 3 | . | . | . | . | 1 | . | |||||||
| Small Blue | 3 | . | . | . | . | . | . | 1 | . | 1 | 1 | . | . | . | . | . | . | . | . | . | |||||||
| Brown Argus | 10 | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | 1 | . | . | 2 | |||||||
| Common Blue | 20 | . | . | . | . | . | 1 | 5 | 2 | 2 | 2 | . | . | 1 | . | 1 | . | 1 | . | 1 | |||||||
| Chalk-hill Blue | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 5 | |||||||
| Adonis Blue | 22 | . | . | . | . | . | . | . | 2 | 4 | 7 | . | . | . | . | . | . | . | . | 2 | |||||||
| Red Admiral | 18 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 13 | 3 | . | . | . | . | |||||||
| Painted Lady | 14 | . | . | . | . | . | . | . | . | . | 4 | 2 | 1 | . | . | . | . | . | . | 1 | |||||||
| Small Tortoiseshell | 13 | . | 2 | . | . | . | . | . | . | . | 1 | . | 1 | . | 2 | 2 | 1 | . | . | 1 | |||||||
| Peacock | 52 | 4 | 5 | 11 | 1 | 4 | 3 | . | 2 | . | . | . | . | 4 | . | 4 | 8 | 1 | . | 1 | |||||||
| Dark Green Fritillary | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | |||||||
| Silver-washed Fritillary | 13 | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 7 | 3 | . | . | . | . | |||||||
| Speckled Wood | 8 | . | . | . | . | . | 1 | . | . | . | . | 1 | . | . | . | . | 1 | . | . | 1 | |||||||
| Wall Brown | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Marbled White | 42 | . | . | . | . | . | . | . | . | . | 2 | 8 | 12 | 9 | 5 | . | 1 | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 59 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 19 | 5 | 13 | 3 | 2 | 4 | |||||||
| Meadow Brown | 352 | . | . | . | . | . | . | . | . | 2 | 8 | 10 | 19 | 30 | 39 | 40 | 43 | 36 | 9 | 31 | |||||||
| Small Heath | 25 | . | . | . | . | 1 | . | 2 | 3 | 2 | 9 | 1 | 1 | . | . | . | . | . | . | . | |||||||
| Ringlet | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | 3 | . | |||||||
| The Cinnabar | NI | . | . | . | . | . | . | . | . | 4 | 4 | . | . | 2 | . | . | 3 | . | . | . | |||||||