
| 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 | 32 | . | . | . | . | . | . | . | 4 | 4 | 6 | 5 | 3 | 5 | . | . | . | . | . | . | . | . | . | ||||
| Brimstone | 35 | 3 | . | 3 | . | . | 2 | . | . | . | . | . | . | . | . | . | 1 | . | 4 | 2 | 10 | 4 | . | ||||
| Large White | 22 | . | . | . | . | 1 | 2 | . | 10 | 1 | . | . | . | . | . | . | . | . | 2 | 3 | . | 1 | . | ||||
| Small White | 4 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | ||||
| Green-veined White | 180 | . | . | . | . | 3 | 5 | 3 | 2 | 13 | 1 | . | . | 2 | 5 | 28 | 55 | 30 | 27 | 2 | 2 | . | . | ||||
| Orange Tip | 12 | . | . | . | . | 8 | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Purple Hairstreak | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | ||||
| Northern Brown Argus | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | ||||
| Red Admiral | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | ||||
| Painted Lady | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | 1 | . | . | . | ||||
| Small Tortoiseshell | 7 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | 2 | 1 | . | . | . | . | ||||
| Peacock | 86 | 3 | 15 | 18 | 10 | 4 | 3 | 1 | . | . | . | . | . | . | . | . | . | 3 | 6 | 3 | 4 | 1 | . | ||||
| Small Pearl-bordered Fritillary | 10 | . | . | . | . | . | . | . | 4 | 4 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Pearl-bordered Fritillary | 74 | . | . | . | . | 5 | 28 | 13 | 12 | 14 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | ||||
| High Brown Fritillary | 25 | . | . | . | . | . | . | . | . | . | 1 | . | 3 | 8 | 5 | 1 | 3 | . | 2 | . | 2 | . | . | ||||
| Wall Brown | 14 | . | . | . | . | . | . | . | . | 2 | . | 1 | . | . | . | . | . | . | . | 3 | 6 | 1 | . | ||||
| Meadow Brown | 50 | . | . | . | . | . | . | . | . | . | . | . | 2 | 5 | 20 | 11 | 9 | . | . | 2 | 1 | . | . | ||||
| Small Heath | 3 | . | . | . | . | . | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||