
| 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 | 9 | . | . | . | . | . | . | . | . | . | . | . | 4 | 3 | 1 | . | . | . | . | ||||||||
| Dingy Skipper | 16 | . | . | . | . | 2 | 2 | 3 | 1 | . | 1 | . | 4 | . | . | . | . | . | . | ||||||||
| Clouded Yellow | 14 | . | . | . | . | . | . | . | . | . | . | . | . | 5 | 8 | 1 | . | 1 | . | ||||||||
| Brimstone | 122 | 1 | 6 | . | 3 | 8 | 3 | 4 | 3 | . | 1 | 1 | 4 | 15 | 29 | 9 | 4 | 5 | 8 | ||||||||
| Large White | 77 | . | 1 | . | 3 | . | 1 | 1 | 1 | . | . | 2 | 3 | 9 | 11 | 13 | 8 | 10 | . | ||||||||
| Small White | 101 | . | . | . | 5 | . | 3 | 1 | . | . | 1 | 1 | 4 | 15 | 38 | 8 | 5 | 6 | 5 | ||||||||
| Green-veined White | NI | . | 1 | . | . | . | . | 2 | . | . | . | 1 | 1 | 1 | . | . | 6 | 12 | 3 | ||||||||
| Orange Tip | 2 | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Green Hairstreak | NI | . | . | 6 | 14 | 3 | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Small Copper | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | ||||||||
| Northern Brown Argus | 132 | . | . | . | . | . | 4 | 32 | 25 | 29 | 11 | 4 | 2 | . | . | . | . | . | . | ||||||||
| Common Blue | 46 | . | . | . | 1 | 5 | 2 | 4 | 1 | 2 | . | 2 | 3 | 7 | 5 | 1 | 3 | 1 | . | ||||||||
| Red Admiral | 65 | . | . | . | . | 1 | 1 | . | . | 4 | 5 | 4 | 5 | 17 | 6 | 2 | 5 | 3 | . | ||||||||
| Painted Lady | 389 | 1 | . | . | . | . | . | . | 1 | . | 1 | . | 18 | 61 | 83 | 43 | 35 | 36 | 41 | ||||||||
| Small Tortoiseshell | 105 | 6 | 2 | 7 | 1 | 1 | . | . | . | 4 | 4 | 4 | 6 | . | 2 | 9 | 11 | 6 | 10 | ||||||||
| Peacock | 393 | 12 | 8 | 6 | 3 | 6 | 6 | . | . | . | . | . | 13 | 44 | 61 | 54 | 43 | 32 | 25 | ||||||||
| Comma | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | 1 | 1 | ||||||||
| Small Pearl-bordered Fritillary | 44 | . | . | . | 5 | . | 1 | 11 | 6 | 5 | 4 | 2 | . | . | . | . | . | . | . | ||||||||
| Pearl-bordered Fritillary | 69 | . | . | . | 9 | 11 | 20 | 13 | 2 | . | . | . | . | . | . | . | . | . | . | ||||||||
| High Brown Fritillary | 282 | . | . | . | . | . | . | . | 1 | 26 | 80 | 38 | 41 | 10 | 2 | 1 | 5 | . | . | ||||||||
| Speckled Wood | 308 | 1 | 1 | 1 | 7 | 7 | 6 | 3 | 15 | 23 | 19 | 3 | 18 | 16 | 10 | 16 | 8 | 20 | 44 | ||||||||
| Wall Brown | 26 | . | . | . | . | . | . | 3 | . | . | 1 | . | . | . | 9 | 2 | 6 | 1 | . | ||||||||
| Meadow Brown | NI | . | . | . | . | . | . | . | . | 8 | 74 | 148 | 55 | 46 | 25 | 11 | 25 | 6 | . | ||||||||
| Small Heath | 33 | . | . | . | . | 2 | 2 | 20 | 1 | 1 | 1 | 1 | 4 | . | . | . | . | . | . | ||||||||