
| 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 | ||||||||||||||||||||||||||
| Small Skipper | NI | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 14 | . | . | . | 2 | 8 | 6 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 39 | . | 15 | 11 | 12 | 9 | 3 | 2 | 3 | . | 1 | . | . | 1 | 7 | . | 4 | 1 | 4 | . | . | ||||||
| Large White | 11 | . | . | 1 | 1 | 3 | 3 | 1 | . | . | 5 | 3 | 2 | 1 | 1 | . | 1 | . | . | . | . | ||||||
| Small White | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 4 | . | 1 | . | . | . | . | ||||||
| Green-veined White | 6 | . | . | 2 | 2 | 4 | . | . | . | . | 3 | 2 | 1 | 1 | 1 | . | . | . | . | . | . | ||||||
| Orange Tip | 4 | . | 5 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Purple Hairstreak | NI | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | ||||||
| Northern Brown Argus | 6 | . | . | . | . | . | 1 | . | 1 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | ||||||
| Common Blue | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Holly Blue | 13 | . | 1 | . | 2 | . | . | . | . | . | . | . | 1 | 1 | 3 | . | 2 | 2 | . | . | . | ||||||
| Red Admiral | 18 | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | 3 | 2 | 1 | . | 2 | ||||||
| Painted Lady | 89 | . | . | . | . | . | 1 | 10 | . | . | . | . | . | 2 | . | . | 52 | 15 | 4 | 2 | 1 | ||||||
| Small Tortoiseshell | NI | . | 2 | 1 | . | . | . | . | . | . | 5 | 1 | 1 | 1 | 2 | . | 2 | . | . | . | 1 | ||||||
| Peacock | 170 | . | 4 | 8 | . | 1 | . | . | . | . | . | . | . | 23 | 64 | . | 44 | 26 | 12 | 1 | . | ||||||
| Comma | 11 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | 4 | ||||||
| Small Pearl-bordered Fritillary | 22 | . | . | . | . | . | 10 | 18 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Pearl-bordered Fritillary | 34 | . | . | . | 62 | 39 | 13 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| High Brown Fritillary | 126 | . | . | . | . | . | . | . | 3 | 17 | 38 | 27 | 13 | 5 | 3 | . | . | . | . | . | . | ||||||
| Dark Green Fritillary | 8 | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Speckled Wood | 543 | . | 11 | 23 | 27 | 17 | 16 | 44 | 19 | 17 | 50 | 22 | 26 | 12 | 23 | . | 55 | 9 | 30 | 42 | 9 | ||||||
| Wall Brown | 60 | . | . | . | 4 | 5 | 12 | 4 | . | . | . | . | 1 | 6 | 19 | . | 7 | 4 | 1 | 2 | . | ||||||
| Grayling | NI | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||||
| Meadow Brown | 164 | . | . | . | . | . | . | . | 7 | 25 | 57 | 49 | 47 | 24 | 27 | . | 2 | . | . | . | . | ||||||
| Small Heath | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Chimney Sweeper | NI | . | . | . | . | . | 4 | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Speckled Yellow | NI | . | . | . | 15 | 8 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Silver Y | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | ||||||
| The Cinnabar | NI | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||