
| 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 | 5 | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | 1 | . | . | . | . | . | |||||||
| Clouded Yellow | 3 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | 1 | . | . | 1 | . | . | |||||||
| Brimstone | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Large White | 3 | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | . | 1 | . | . | . | . | |||||||
| Small White | 50 | . | . | . | 2 | 3 | 2 | 3 | 2 | . | 1 | 1 | 7 | 15 | 13 | 1 | 5 | 2 | 3 | . | |||||||
| Orange Tip | 11 | . | 1 | . | 2 | 7 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | |||||||
| Common Blue | 13 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 10 | . | . | . | . | . | |||||||
| Red Admiral | 2 | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Tortoiseshell | 126 | 11 | 17 | 25 | 18 | 8 | 3 | . | . | 8 | 5 | 5 | 6 | . | 3 | 1 | . | . | . | . | |||||||
| Peacock | 10 | 2 | 1 | 2 | 2 | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | |||||||
| Comma | 5 | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | 1 | |||||||
| Marbled White | 6 | . | . | . | . | . | . | . | . | . | 2 | 5 | . | . | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 6 | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | |||||||
| Meadow Brown | 304 | . | . | . | . | . | . | . | 12 | 48 | 30 | 62 | 56 | 31 | 8 | 7 | . | 2 | . | . | |||||||