
| 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 | NI | . | . | . | . | . | . | 1 | 1 | . | 5 | 2 | . | 1 | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 3 | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 53 | 1 | 2 | 1 | 5 | 5 | 8 | 1 | 3 | 2 | . | . | . | . | 1 | 5 | 5 | 4 | 1 | . | . | ||||||
| Large White | 15 | . | . | . | . | . | . | 1 | 1 | . | . | 1 | 2 | . | 1 | 2 | 4 | 2 | 1 | . | . | ||||||
| Small White | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | ||||||
| Green-veined White | 19 | . | . | . | 1 | 4 | 2 | 1 | . | . | . | . | 1 | 7 | . | 1 | . | . | 1 | . | . | ||||||
| Orange Tip | 7 | . | 1 | 1 | 3 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 4 | . | . | 1 | 1 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Purple Hairstreak | 7 | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | 1 | 1 | 1 | 2 | . | . | . | ||||||
| Northern Brown Argus | NI | . | . | . | . | . | . | . | 3 | 11 | 18 | 12 | 6 | 7 | 1 | . | . | . | . | . | . | ||||||
| Holly Blue | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | 1 | . | ||||||
| Painted Lady | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 2 | . | . | . | ||||||
| Small Tortoiseshell | 7 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 1 | . | 1 | 2 | ||||||
| Peacock | 105 | 3 | 4 | 7 | 5 | 5 | 4 | 2 | 1 | . | . | . | . | . | 2 | 21 | 23 | 13 | 2 | 1 | 4 | ||||||
| Comma | 11 | . | . | 1 | 1 | . | 1 | . | 1 | . | . | 1 | . | 1 | 3 | 1 | . | . | . | 1 | . | ||||||
| Small Pearl-bordered Fritillary | NI | . | . | . | . | . | . | 1 | 7 | 13 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Pearl-bordered Fritillary | 33 | . | . | . | 4 | 13 | 4 | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| High Brown Fritillary | 66 | . | . | . | . | . | . | . | . | . | 10 | 18 | 6 | 1 | 12 | 6 | . | 3 | . | . | . | ||||||
| Dark Green Fritillary | NI | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Speckled Wood | 133 | . | 3 | 6 | 5 | 1 | 2 | . | 8 | 9 | 5 | 4 | 2 | 1 | 1 | 4 | 3 | 7 | 9 | 19 | 26 | ||||||
| Wall Brown | 19 | . | . | . | . | . | 5 | 1 | 2 | . | . | . | . | . | . | 5 | 2 | . | . | . | . | ||||||
| Grayling | 4 | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 1 | . | . | . | . | . | . | ||||||
| Meadow Brown | 312 | . | . | . | . | . | . | . | . | . | 35 | 42 | 46 | 45 | 26 | 48 | 25 | 7 | 2 | . | . | ||||||
| Small Heath | 45 | . | . | . | . | 6 | 10 | 4 | 9 | 2 | . | . | . | . | . | . | . | . | . | . | . | ||||||