
| 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 | 90 | . | . | . | . | . | 1 | 2 | 16 | 37 | 18 | 12 | 2 | 2 | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 3 | . | . | . | . | 2 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 18 | 2 | . | . | 3 | 2 | . | . | . | . | . | . | . | . | 2 | 4 | 3 | . | 1 | . | . | ||||||
| Large White | 19 | . | . | . | . | 2 | 2 | . | . | . | . | 2 | 2 | . | 5 | 5 | . | 1 | . | . | . | ||||||
| Small White | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | ||||||
| Green-veined White | 71 | . | . | 1 | 3 | 8 | 1 | 7 | . | . | . | 6 | 2 | 10 | 9 | 16 | 5 | 2 | 1 | . | . | ||||||
| Orange Tip | 3 | . | . | . | 1 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Purple Hairstreak | 3 | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | . | ||||||
| Northern Brown Argus | 10 | . | . | . | . | . | . | . | . | . | 4 | 6 | . | . | . | . | . | . | . | . | . | ||||||
| Common Blue | 4 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 2 | . | 1 | . | . | . | ||||||
| Duke of Burgundy Fritillary | 5 | . | . | . | . | 1 | 3 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | 10 | . | . | . | . | 1 | . | . | . | . | . | 1 | 1 | . | 1 | 1 | . | 1 | 1 | 2 | 1 | ||||||
| Painted Lady | 4 | . | . | . | . | . | . | . | 1 | . | . | . | 2 | . | . | 1 | . | . | . | . | . | ||||||
| Small Tortoiseshell | 4 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | 1 | . | . | . | . | . | ||||||
| Peacock | 90 | 12 | 13 | 5 | 10 | 2 | . | . | . | . | . | . | 1 | 1 | 1 | 21 | 7 | 2 | 2 | . | . | ||||||
| Pearl-bordered Fritillary | 146 | . | . | . | . | 30 | 44 | 32 | 29 | 6 | 3 | 2 | . | . | . | . | . | . | . | . | . | ||||||
| High Brown Fritillary | 148 | . | . | . | . | . | . | . | . | 3 | 27 | 66 | 26 | 20 | 4 | 2 | . | . | . | . | . | ||||||
| Meadow Brown | 227 | . | . | . | . | . | 1 | . | . | 9 | 40 | 54 | 45 | 34 | 22 | 18 | 11 | 2 | . | . | . | ||||||