
| 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 | 77 | . | . | . | . | . | 1 | 4 | 17 | 22 | 20 | 3 | 4 | 5 | 1 | . | . | . | . | . | . | . | . | ||||
| Dingy Skipper | 14 | . | . | . | 1 | 3 | 3 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Brimstone | 109 | . | 4 | 8 | 12 | 12 | . | . | . | 1 | 1 | . | . | 5 | 9 | 17 | 10 | 8 | 11 | . | . | 4 | 3 | ||||
| Large White | 8 | . | . | 1 | . | . | . | 3 | . | . | . | . | . | . | 1 | 3 | . | . | . | . | . | . | . | ||||
| Small White | 16 | . | . | . | . | . | . | 1 | . | . | . | . | 1 | 1 | 5 | 8 | . | . | . | . | . | . | . | ||||
| Green-veined White | 49 | . | . | 5 | 4 | . | 6 | 1 | 1 | 1 | 3 | . | 1 | 9 | 8 | 2 | 4 | . | 1 | . | . | . | . | ||||
| Orange Tip | 7 | . | 2 | 3 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Purple Hairstreak | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | ||||
| Common Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | ||||
| Duke of Burgundy Fritillary | 15 | . | . | . | 1 | 6 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Red Admiral | 3 | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | 1 | . | . | ||||
| Painted Lady | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | ||||
| Small Tortoiseshell | 2 | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | ||||
| Peacock | NI | 2 | 15 | 6 | 10 | 8 | 2 | 2 | . | . | . | . | . | 1 | 20 | 19 | 7 | 2 | . | 1 | . | . | 3 | ||||
| Comma | NI | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 1 | . | . | . | . | . | . | . | 2 | ||||
| Small Pearl-bordered Fritillary | 15 | . | . | . | . | . | 1 | 6 | 5 | 2 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||
| Pearl-bordered Fritillary | 100 | . | . | . | 4 | 31 | 19 | 11 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| High Brown Fritillary | 102 | . | . | . | . | . | . | . | 1 | 3 | 15 | 17 | 22 | 13 | 22 | 8 | 1 | . | . | . | . | . | . | ||||
| Dark Green Fritillary | 7 | . | . | . | . | . | . | . | 1 | 1 | 3 | 1 | . | . | . | 1 | . | . | . | . | . | . | . | ||||
| Speckled Wood | 150 | . | . | 2 | 2 | 1 | 3 | 1 | 4 | 7 | 19 | 12 | 15 | 5 | 6 | 7 | 5 | 6 | 3 | 10 | 11 | 7 | 23 | ||||
| Wall Brown | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||
| Grayling | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||
| Meadow Brown | 269 | . | . | . | . | . | . | . | . | 3 | 41 | 62 | 49 | 47 | 31 | 29 | 6 | 1 | . | . | . | . | . | ||||