
| 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 | 5 | . | . | . | . | . | . | 1 | 6 | 2 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Dingy Skipper | NI | . | . | . | . | 15 | 1 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Brimstone | 2 | . | 3 | 6 | . | 2 | . | 3 | . | . | 1 | . | . | . | . | . | . | 1 | 1 | . | . | . | . | ||||
| Large White | NI | . | . | . | . | . | . | . | . | . | 1 | . | 3 | 1 | . | . | 4 | 2 | 2 | . | . | . | . | ||||
| Small White | NI | . | . | 2 | 4 | 8 | 1 | . | 1 | . | . | . | . | 3 | 2 | . | 1 | 3 | 1 | . | 1 | 7 | . | ||||
| Green-veined White | NI | . | . | . | . | 5 | . | 1 | . | . | . | . | . | . | 2 | . | . | 3 | . | . | . | . | . | ||||
| Orange Tip | NI | . | 2 | 2 | 1 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Northern Brown Argus | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||
| Common Blue | 4 | . | . | . | . | . | 1 | 8 | 4 | 1 | 2 | . | 1 | . | . | . | 1 | 1 | . | . | . | . | . | ||||
| Holly Blue | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | ||||
| Red Admiral | NI | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | ||||
| Small Tortoiseshell | 7 | 1 | 2 | . | . | . | . | . | . | . | . | . | 3 | 4 | 1 | . | . | . | . | . | . | . | . | ||||
| Peacock | 23 | 3 | 1 | 2 | . | 1 | 1 | . | . | . | . | 1 | . | . | . | . | 5 | . | 1 | . | . | . | . | ||||
| Comma | 8 | . | . | . | . | . | 1 | . | . | . | . | 2 | 1 | 1 | 1 | . | . | . | . | . | 1 | 1 | . | ||||
| Pearl-bordered Fritillary | NI | . | . | . | . | . | 1 | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | ||||
| High Brown Fritillary | 9 | . | . | . | . | . | . | . | . | . | 5 | . | . | . | 1 | . | . | . | . | . | . | . | . | ||||
| Dark Green Fritillary | NI | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | ||||
| Speckled Wood | 152 | . | 1 | 2 | . | 4 | . | 10 | 27 | 10 | 4 | 5 | 7 | 7 | 4 | 7 | 13 | 6 | 4 | 13 | 32 | 24 | 4 | ||||
| Wall Brown | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 4 | 7 | 4 | . | 1 | . | . | ||||
| Meadow Brown | 196 | . | . | . | . | . | . | . | 1 | 7 | 12 | 60 | 49 | 60 | 33 | 27 | 12 | 2 | . | . | . | . | . | ||||