
| 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 | 295 | . | . | . | . | . | 1 | 89 | 29 | 75 | 41 | 8 | 39 | 11 | 2 | . | . | . | |||||||||
| Large Skipper | 120 | . | . | . | . | . | 11 | 12 | 43 | . | 5 | . | 2 | . | . | . | . | . | |||||||||
| Grizzled Skipper | 2 | . | . | . | 1 | . | 0.5 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Clouded Yellow | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||||||
| Brimstone | 173 | 10 | 5.5 | 5 | 4 | 3 | 1 | . | . | 23 | 21 | 17 | 23 | 40 | . | 3 | 3 | . | |||||||||
| Large White | 73 | . | 7 | . | . | . | . | . | 4 | . | . | 3 | . | 32 | . | . | . | . | |||||||||
| Small White | 99 | . | 2 | . | 1 | . | 1 | 1 | . | 29 | 17 | 8 | 26 | 7 | 1 | 2 | . | . | |||||||||
| Green-veined White | 46 | . | . | . | . | 1 | . | . | . | 5 | 19 | 20 | . | . | . | . | . | . | |||||||||
| Orange Tip | 7 | . | 1 | 2 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Small Copper | 3 | . | . | . | . | . | . | . | . | . | 1 | . | . | 2 | . | . | . | . | |||||||||
| Brown Argus | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | |||||||||
| Common Blue | 110 | . | . | . | . | . | 1 | 4 | 1 | 1 | 1 | 3 | 25 | 60 | 9 | 3 | . | . | |||||||||
| White Admiral | 15 | . | . | . | . | . | . | . | 8 | 1 | 3 | 3 | . | . | . | . | . | . | |||||||||
| Purple Emperor | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||||||
| Red Admiral | 58 | . | . | . | . | . | . | . | 3 | . | 3 | 10 | 34 | 3 | 3 | 1 | . | . | |||||||||
| Painted Lady | 305 | . | . | . | 9 | 1 | 3 | . | 3 | 49 | 83 | 37 | 38 | 77 | 2 | . | . | . | |||||||||
| Small Tortoiseshell | 11 | . | 1 | . | . | . | . | . | 3 | . | . | 2 | . | 2 | . | 1 | . | . | |||||||||
| Peacock | 208 | 9 | 5 | . | . | 1 | . | . | . | 18 | 31 | 31 | 67 | 33 | 1 | 5 | . | . | |||||||||
| Comma | 12 | 4 | 0.5 | . | . | . | . | . | . | 2 | . | . | . | . | . | . | 1 | 2 | |||||||||
| Small Pearl-bordered Fritillary | 6 | . | . | . | . | 1 | 1.5 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Pearl-bordered Fritillary | 31 | . | 2.5 | 2 | 7 | 17 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Dark Green Fritillary | 9 | . | . | . | . | . | . | . | 5 | 4 | . | . | . | . | . | . | . | . | |||||||||
| Silver-washed Fritillary | 167 | . | . | . | . | . | 3 | 47 | 28 | 27 | 22 | 10 | 10 | 13 | 2 | . | . | . | |||||||||
| Speckled Wood | 126 | . | 2 | 4 | . | 6 | 1 | . | 5 | 2 | 2 | . | 11 | 4 | 15 | 14 | 41 | 13 | |||||||||
| Marbled White | 95 | . | . | . | . | . | 2 | 15 | 25 | 35 | 8 | 4 | 1 | . | . | . | . | . | |||||||||
| Gatekeeper / Hedge Brown | 805 | . | . | . | . | . | . | . | 8 | 136 | 275 | 100 | 198 | 81 | 9 | . | . | . | |||||||||
| Meadow Brown | 221 | . | . | . | . | . | 2.5 | 61 | 28 | . | 30 | . | 31 | 12 | 2 | . | . | . | |||||||||
| Ringlet | 479 | . | . | . | . | . | 8 | 97 | 162 | 115 | 47 | 34 | 15 | 3 | . | . | . | . | |||||||||