
| 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 | 28 | . | . | . | . | . | . | 1 | . | 6 | 5 | . | 10 | 2 | 1 | 2 | 1 | . | . | . | . | . | |||||
| Dingy Skipper | 47 | . | . | . | . | 3 | 10 | 13 | 6 | . | . | 15 | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . | |||||
| Large White | 21 | . | . | 3 | 1 | 1 | 1 | 2 | . | 3 | . | 4 | . | 2 | . | . | . | . | . | 1 | 2 | 1 | |||||
| Small White | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | 1 | 1 | |||||
| Green-veined White | 148 | . | . | 6 | 4 | 12 | 14 | 7 | 1 | 6 | . | 16 | . | 3 | 18 | 31 | 16 | 5 | 1 | 5 | 2 | 1 | |||||
| Orange Tip | 69 | . | 2 | 28 | 22 | 13 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | 15 | . | . | 5 | 6 | 1 | 2 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 3 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 2 | . | . | . | . | . | |||||
| Northern Brown Argus | 98 | . | . | . | . | . | . | . | . | 4 | 24 | . | 22 | 14 | 14 | 13 | 5 | 1 | 1 | . | . | . | |||||
| Common Blue | 46 | . | . | . | . | . | . | 7 | 2 | 7 | . | 7 | 1 | . | . | . | 5 | 11 | 4 | . | 1 | 1 | |||||
| Holly Blue | 5 | . | . | 4 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||
| Red Admiral | 32 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 5 | . | . | 16 | 6 | 3 | 1 | |||||
| Painted Lady | 32 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | 1 | . | 1 | 15 | 9 | 4 | |||||
| Small Tortoiseshell | 190 | 2 | . | 2 | . | 1 | 2 | . | . | . | 2 | . | 1 | 17 | 10 | 61 | 17 | 2 | 6 | 41 | 16 | 8 | |||||
| Peacock | 112 | 5 | 3 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 6 | 27 | 13 | 32 | 15 | . | |||||
| Small Pearl-bordered Fritillary | 207 | . | . | . | . | . | . | 22 | 32 | 88 | 46 | . | 18 | . | 1 | . | . | . | . | . | . | . | |||||
| Pearl-bordered Fritillary | 247 | . | . | . | 44 | 52 | 57 | 30 | 5 | 2 | . | 57 | . | . | . | . | . | . | . | . | . | . | |||||
| High Brown Fritillary | 137 | . | . | . | . | . | . | . | . | . | 1 | . | 17 | 36 | 31 | 33 | 15 | 3 | 1 | . | . | . | |||||
| Wall Brown | 76 | . | . | . | 1 | 3 | 2 | 2 | . | . | . | 3 | . | . | . | . | 2 | 18 | 18 | 13 | 14 | . | |||||
| Grayling | 10 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | 5 | . | 2 | 1 | . | . | |||||
| Meadow Brown | 621 | . | . | . | . | . | . | . | . | . | 7 | . | 56 | 82 | 140 | 213 | 89 | 30 | 4 | . | . | . | |||||
| Small Heath | 226 | . | . | . | 3 | 1 | 34 | 42 | 6 | 44 | 15 | 79 | 1 | . | 1 | . | . | . | . | . | . | . | |||||