
| 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 | 7 | . | . | . | . | . | 1 | . | 1 | 2 | 1 | . | . | . | . | . | . | . | . | . | |||||||
| Dingy Skipper | 2 | . | . | 1 | 3 | 3 | 3 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Brimstone | 74 | 5 | 3 | 8 | 12 | 4 | 3 | 4 | 1 | 1 | 1 | . | 1 | . | 6 | 5 | 2 | 3 | 2 | 1 | |||||||
| Large White | NI | . | . | . | . | . | 1 | 1 | . | . | . | . | 2 | 1 | . | 2 | . | . | . | . | |||||||
| Small White | 13 | . | . | . | . | . | . | 1 | . | 1 | . | . | 5 | . | . | 2 | 2 | 1 | . | 1 | |||||||
| Green-veined White | 22 | . | 2 | 1 | 5 | 5 | 1 | 2 | . | . | . | 2 | . | 3 | 8 | 1 | 14 | . | . | . | |||||||
| Orange Tip | 2 | . | 1 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Purple Hairstreak | 5 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 2 | . | . | . | . | |||||||
| Northern Brown Argus | NI | . | . | . | . | . | . | 3 | 3 | 4 | 7 | 4 | 1 | . | . | . | . | . | . | . | |||||||
| Common Blue | 3 | . | . | . | . | 1 | 3 | 5 | . | 1 | 1 | . | . | 1 | . | 1 | . | . | . | . | |||||||
| Holly Blue | 5 | . | . | . | 2 | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | |||||||
| Red Admiral | 21 | . | . | . | . | . | . | . | 1 | 1 | . | . | . | 1 | . | . | 2 | 3 | . | 3 | |||||||
| Painted Lady | 20 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 7 | 11 | 2 | . | 4 | |||||||
| Small Tortoiseshell | NI | . | 1 | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 1 | . | . | . | . | |||||||
| Peacock | 125 | 5 | 4 | 4 | 8 | . | 3 | . | . | . | . | . | . | . | 32 | 36 | 14 | 1 | . | . | |||||||
| Comma | 7 | . | . | 1 | 1 | . | . | . | . | . | 1 | 2 | 3 | . | . | 3 | 1 | 1 | . | . | |||||||
| Small Pearl-bordered Fritillary | 6 | . | . | . | . | . | 6 | 9 | 4 | 7 | . | . | . | . | 1 | . | . | . | . | . | |||||||
| Pearl-bordered Fritillary | 4 | . | . | 2 | 9 | 8 | 2 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| High Brown Fritillary | 68 | . | . | . | . | . | . | . | 3 | 12 | 31 | 17 | 17 | 5 | 5 | . | . | . | . | . | |||||||
| Dark Green Fritillary | 2 | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Speckled Wood | 203 | . | 5 | 3 | 10 | . | 4 | 11 | 17 | 15 | 5 | 17 | 11 | 1 | 8 | 4 | 15 | 11 | 6 | 15 | |||||||
| Wall Brown | 30 | . | . | . | . | 8 | 1 | 2 | 1 | . | . | . | . | . | 8 | 11 | 12 | 3 | 1 | . | |||||||
| Grayling | NI | . | . | . | . | . | . | . | . | . | 2 | . | 1 | . | . | . | . | . | . | . | |||||||
| Meadow Brown | NI | . | . | . | . | . | . | 1 | 9 | 16 | 57 | 52 | 34 | 39 | 17 | 16 | . | . | . | . | |||||||
| Small Heath | 1 | . | . | . | 10 | 15 | 10 | 6 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||