
| 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 | ||||||||||||||||||||||||||
| Large Skipper | 36 | . | . | . | . | . | . | 3 | 4 | 7 | 19 | 3 | . | . | . | . | . | . | . | ||||||||
| Brimstone | 25 | . | 1 | . | 2 | 1 | 1 | 1 | . | . | 1 | . | . | . | . | . | 2 | . | 7 | ||||||||
| Large White | 44 | . | 1 | . | . | 2 | 1 | 2 | 1 | . | . | . | . | . | 1 | 13 | 4 | 2 | 2 | ||||||||
| Small White | 2 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Green-veined White | 171 | . | . | . | 1 | 24 | 5 | 9 | 1 | . | . | . | 8 | 14 | 22 | 11 | 8 | . | . | ||||||||
| Orange Tip | 10 | . | . | . | 1 | 2 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Purple Hairstreak | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | ||||||||
| Holly Blue | NI | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Small Tortoiseshell | 5 | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | ||||||||
| Peacock | 41 | 7 | 6 | 5 | 1 | . | . | . | . | . | . | . | . | . | 1 | 10 | . | . | . | ||||||||
| Small Pearl-bordered Fritillary | 11 | . | . | . | . | . | 3 | 3 | 1 | 1 | 1 | . | . | . | . | . | . | . | 1 | ||||||||
| Pearl-bordered Fritillary | 13 | . | . | . | . | 3 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Dark Green Fritillary | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | ||||||||
| Wall Brown | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 1 | . | 2 | ||||||||
| Meadow Brown | 28 | . | . | . | . | . | . | . | . | . | 2 | 6 | 2 | 5 | 5 | . | . | . | . | ||||||||