
| 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 | ||||||||||||||||||||||||||
| Small Skipper | 147 | . | . | . | . | . | . | . | . | . | . | 25 | 7 | 7 | 49 | 19 | . | . | 6 | . | . | . | |||||
| Large Skipper | 179 | . | . | . | . | . | . | 29 | 37 | 12 | 41 | 19 | 19 | 16 | 6 | . | . | . | 2 | . | . | . | |||||
| Grizzled Skipper | 2 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 112 | 8 | 8 | 1 | 11 | 9 | 11 | . | . | . | . | . | . | 1 | 10 | 20 | 4 | 2 | 4 | . | . | . | |||||
| Large White | 69 | . | . | . | . | . | 4 | . | . | . | . | 4 | . | . | 10 | 17 | . | 9 | 7 | 3 | . | . | |||||
| Small White | 125 | . | . | . | 1 | . | . | . | 2 | . | . | . | 6 | . | 21 | 13 | 17 | 6 | 21 | 7 | 4 | 1 | |||||
| Green-veined White | 60 | . | . | . | 6 | 1 | . | . | . | . | . | . | . | 15 | 20 | . | . | 2 | 5 | . | . | . | |||||
| Orange Tip | 7 | . | 3 | . | 2 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | |||||
| Small Blue | NI | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brown Argus | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||
| Common Blue | 50 | . | . | . | . | . | . | 3 | 2 | . | . | . | . | . | 5 | 20 | 3 | 2 | 3 | . | . | . | |||||
| Holly Blue | 3 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||
| White Admiral | 7 | . | . | . | . | . | . | . | . | 1 | . | 3 | 3 | . | . | . | . | . | . | . | . | . | |||||
| Red Admiral | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | |||||
| Small Tortoiseshell | 28 | 1 | 3 | . | . | . | . | . | 1 | . | 1 | . | . | . | . | 1 | 2 | . | 15 | . | . | . | |||||
| Peacock | 174 | 27 | 17 | 4 | 2 | . | 1 | . | . | . | . | . | . | 4 | 35 | 29 | 4 | 1 | 13 | . | . | . | |||||
| Comma | 24 | 2 | . | . | . | . | 1 | . | . | . | . | 1 | . | . | . | . | 1 | . | . | 2 | 10 | 1 | |||||
| Small Pearl-bordered Fritillary | 3 | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Pearl-bordered Fritillary | 8 | . | . | . | 1 | 3 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Dark Green Fritillary | 8 | . | . | . | . | . | . | . | . | . | . | 4 | 1 | 3 | . | . | . | . | . | . | . | . | |||||
| Silver-washed Fritillary | 274 | . | . | . | . | . | . | 1 | 16 | 14 | 41 | 39 | 17 | 31 | 30 | 39 | 9 | . | 2 | . | . | . | |||||
| Speckled Wood | 232 | 2 | 6 | 16 | 4 | 6 | 14 | 15 | 21 | 8 | 9 | 2 | 5 | 2 | 15 | 9 | 10 | 22 | 12 | 22 | 5 | . | |||||
| Marbled White | 192 | . | . | . | . | . | . | . | 1 | 12 | 33 | 50 | 56 | 33 | 6 | . | 1 | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 487 | . | . | . | . | . | . | . | . | . | . | . | 12 | 76 | 141 | 91 | 25 | 6 | 9 | . | . | . | |||||
| Meadow Brown | 406 | . | . | . | . | . | . | . | 15 | 46 | 90 | 13 | 10 | 70 | 73 | 21 | 4 | 5 | 12 | . | . | . | |||||
| Small Heath | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Ringlet | 583 | . | . | . | . | . | . | . | 3 | 30 | 91 | 206 | 181 | 15 | 33 | 2 | . | . | 5 | . | . | . | |||||