
| 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 | 33 | . | . | . | . | . | . | . | . | . | 3 | 8 | 15 | 3 | 4 | . | . | . | . | . | . | ||||||
| Dingy Skipper | 33 | . | . | . | 1 | 1 | 11 | 13 | 1 | 1 | 5 | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 2 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | ||||||
| Large White | 72 | . | 1 | . | . | 2 | 8 | 4 | 2 | 1 | 6 | 2 | 2 | . | 4 | 2 | 1 | 5 | 9 | 21 | 2 | ||||||
| Small White | 5 | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | 2 | . | . | . | 1 | ||||||
| Green-veined White | 77 | . | . | 3 | 13 | 6 | 4 | 2 | 8 | 1 | . | . | . | . | . | 9 | 3 | 13 | 3 | 2 | 8 | ||||||
| Orange Tip | 13 | . | . | 5 | 3 | 2 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 10 | . | . | 2 | 2 | 2 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | ||||||
| Northern Brown Argus | 74 | . | . | . | . | . | 1 | . | . | . | 7 | 33 | 11 | 8 | 11 | 1 | 2 | . | . | . | . | ||||||
| Common Blue | 47 | . | . | . | . | . | 2 | 2 | 7 | 2 | . | . | 10 | . | . | . | . | 2 | 9 | 4 | 9 | ||||||
| Holly Blue | 6 | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | ||||||
| Red Admiral | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||
| Painted Lady | 4 | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | 2 | ||||||
| Small Tortoiseshell | 46 | 5 | 4 | 2 | 2 | . | 2 | . | . | . | . | . | 2 | 1 | 1 | 11 | 1 | 2 | 4 | 4 | 2 | ||||||
| Peacock | 140 | 5 | 3 | 4 | 3 | . | . | . | . | . | . | . | . | . | . | . | 4 | 20 | 71 | 21 | 5 | ||||||
| Small Pearl-bordered Fritillary | 164 | . | . | . | . | . | . | 12 | 19 | 29 | 28 | 41 | 26 | 5 | 4 | . | . | . | . | . | . | ||||||
| Pearl-bordered Fritillary | 131 | . | . | . | 9 | 29 | 57 | 33 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| High Brown Fritillary | 149 | . | . | . | . | . | . | . | . | . | . | 6 | 33 | 39 | 25 | 24 | 19 | 3 | . | . | . | ||||||
| Wall Brown | 120 | . | . | . | . | 3 | 29 | 4 | . | 6 | . | . | . | . | . | . | . | 3 | 19 | 37 | 19 | ||||||
| Grayling | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | ||||||
| Meadow Brown | 978 | . | . | . | . | . | . | . | . | . | 5 | 113 | 132 | 140 | 191 | 211 | 134 | 42 | 8 | 2 | . | ||||||
| Small Heath | 90 | . | . | . | . | . | 20 | 22 | 12 | 14 | 15 | 4 | 3 | . | . | . | . | . | . | . | . | ||||||