
| 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 | 8 | . | . | . | . | . | . | . | 1 | 1 | . | . | 1 | 1 | 1 | . | . | . | . | . | . | ||||||
| Dingy Skipper | 60 | . | . | . | . | . | 10 | . | 9 | 4 | . | . | . | . | . | . | 1 | . | 18 | . | 10 | ||||||
| Brimstone | 85 | 1 | 10 | 1 | . | . | . | . | . | . | . | 2 | 1 | 1 | 6 | 10 | 10 | 12 | 10 | 1 | 12 | ||||||
| Large White | 131 | . | . | 1 | 6 | . | 13 | 7 | 6 | 1 | . | 2 | 12 | 14 | 29 | 7 | 5 | 1 | 9 | 1 | 6 | ||||||
| Small White | 30 | . | . | 6 | 1 | . | . | . | . | . | . | . | . | 2 | 6 | 3 | . | 5 | 4 | . | 3 | ||||||
| Green-veined White | 9 | . | . | . | . | . | 5 | . | . | . | . | . | . | 1 | . | . | . | 1 | . | 2 | . | ||||||
| Orange Tip | 27 | . | 1 | 18 | 3 | . | 2 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 48 | . | 1 | 23 | 1 | . | 18 | 2 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Northern Brown Argus | 147 | . | . | . | . | 1 | . | 5 | 2 | 30 | 39 | 7 | . | 4 | 5 | . | . | . | . | . | . | ||||||
| Common Blue | 86 | . | . | . | . | . | 1 | 2 | 17 | . | 1 | . | 2 | 9 | 5 | 22 | 6 | 10 | . | . | 2 | ||||||
| Holly Blue | 2 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | 26 | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | 9 | 3 | 3 | 1 | 5 | ||||||
| Small Tortoiseshell | 31 | . | 1 | 2 | 1 | . | . | . | . | 1 | . | . | . | 2 | . | . | . | . | . | . | 24 | ||||||
| Peacock | 136 | . | 3 | 4 | . | . | . | . | . | . | . | 4 | 5 | 1 | 17 | 30 | 11 | 32 | 10 | . | 13 | ||||||
| Comma | 5 | . | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | . | . | . | . | ||||||
| Small Pearl-bordered Fritillary | 18 | . | . | . | . | . | . | 2 | . | 7 | 1 | . | . | . | . | . | . | . | . | . | . | ||||||
| Pearl-bordered Fritillary | 27 | . | . | . | 2 | 1 | 10 | 10 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| High Brown Fritillary | 116 | . | . | . | . | . | . | . | . | 1 | 16 | 23 | 15 | 5 | 32 | . | . | . | 1 | . | . | ||||||
| Speckled Wood | 469 | . | . | 10 | . | . | 3 | 6 | 8 | 35 | 13 | 10 | 16 | 8 | 16 | 40 | 12 | 37 | 45 | 126 | 25 | ||||||
| Wall Brown | 100 | . | . | . | . | . | 18 | 4 | 2 | 4 | . | 3 | 2 | . | . | 38 | 1 | 14 | 4 | 1 | 2 | ||||||
| Grayling | 27 | . | . | . | . | . | . | . | . | . | . | 1 | 5 | 7 | 1 | 6 | 1 | 2 | . | . | 1 | ||||||
| Meadow Brown | 444 | . | . | . | . | . | . | . | . | 1 | 109 | 55 | 47 | 96 | 17 | 9 | 3 | 1 | . | . | . | ||||||
| Small Heath | 89 | . | . | . | . | . | 10 | 9 | 28 | 7 | . | . | 2 | . | 4 | . | . | . | 5 | . | 1 | ||||||