
| 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 | NI | . | . | . | . | . | . | . | . | . | . | . | 6 | 1 | 2 | . | . | . | . | . | |||||||
| Essex Skipper | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||||
| Large Skipper | 23 | . | . | . | . | . | . | . | 1 | 11 | 7 | 1 | . | . | 2 | . | . | . | . | . | |||||||
| Brimstone | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Large White | 43 | 1 | . | . | . | 1 | . | 1 | 4 | . | 1 | . | 3 | 3 | 11 | 9 | 1 | 1 | . | . | |||||||
| Small White | 41 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 4 | 11 | 17 | . | 1 | 1 | . | |||||||
| Green-veined White | 8 | . | . | 1 | 2 | . | . | . | . | . | . | . | 2 | . | 1 | . | . | . | . | . | |||||||
| Orange Tip | 5 | . | 1 | 2 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 2 | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | |||||||
| Common Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Red Admiral | 5 | . | . | . | 1 | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | . | . | |||||||
| Painted Lady | 5 | . | . | . | . | . | . | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Small Tortoiseshell | 14 | . | 2 | . | 1 | . | . | . | . | . | 2 | . | 1 | 2 | 1 | . | . | 1 | . | . | |||||||
| Peacock | 10 | . | . | . | . | 2 | 2 | . | . | . | . | . | . | . | 2 | 2 | . | . | . | . | |||||||
| Comma | 11 | . | . | . | . | . | . | . | . | . | 1 | 1 | 1 | 2 | 1 | . | . | . | 1 | . | |||||||
| Speckled Wood | 128 | 1 | . | . | . | . | 4 | 9 | 2 | 2 | 2 | . | . | 3 | 6 | 6 | 4 | 33 | 18 | 4 | |||||||
| Wall Brown | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 54 | . | . | . | . | . | . | . | . | . | . | . | 4 | 13 | 13 | 11 | 1 | . | . | . | |||||||
| Meadow Brown | 166 | . | . | . | . | . | . | . | . | . | 19 | 26 | 41 | 10 | 9 | . | . | . | . | . | |||||||