
| 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 | 127 | . | . | . | . | . | . | . | . | . | . | 5 | 1 | 18 | 43 | 45 | 14 | . | . | . | 1 | . | . | ||||
| Large Skipper | 70 | . | . | . | . | . | . | . | . | 2 | 10 | 28 | 9 | 1 | 1 | . | . | . | . | . | . | . | . | ||||
| Grizzled Skipper | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Brimstone | 161 | 13 | 3 | 5 | 11 | 2 | 8 | 2 | . | . | . | . | . | . | 8 | 20 | 18 | . | 8 | 27 | 22 | 3 | . | ||||
| Large White | 22 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 3 | 9 | 7 | . | 1 | . | . | . | . | ||||
| Small White | 52 | . | . | . | . | . | . | 1 | . | . | . | 3 | 1 | . | . | 6 | 12 | 3 | 8 | 14 | 9 | 2 | . | ||||
| Green-veined White | 43 | . | . | . | . | 1 | . | . | . | . | . | . | . | 4 | 10 | 7 | . | . | . | 7 | 3 | . | . | ||||
| Orange Tip | 17 | 1 | 1 | 1 | 8 | . | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Common Blue | 8 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 6 | . | 1 | . | . | . | . | ||||
| Duke of Burgundy Fritillary | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| White Admiral | 4 | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | 1 | . | 1 | . | . | . | . | . | . | ||||
| Purple Emperor | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | . | . | . | . | . | . | ||||
| Red Admiral | 16 | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | 3 | . | . | . | 1 | 4 | 6 | . | 1 | ||||
| Painted Lady | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 2 | 1 | . | . | ||||
| Small Tortoiseshell | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 1 | . | . | ||||
| Peacock | 124 | 8 | 5 | 3 | 8 | . | . | . | . | . | . | 1 | . | . | 5 | 42 | 35 | 2 | 2 | 2 | 2 | 1 | . | ||||
| Comma | 27 | 1 | 3 | 2 | . | . | . | . | . | . | . | 2 | 3 | 1 | . | . | . | . | . | 1 | 5 | 1 | 5 | ||||
| Small Pearl-bordered Fritillary | 15 | . | . | . | . | . | . | 7 | . | 8 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Pearl-bordered Fritillary | 3 | . | . | . | . | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Dark Green Fritillary | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | . | . | . | ||||
| Silver-washed Fritillary | 124 | . | . | . | . | . | . | . | . | . | . | . | 28 | 20 | 20 | 16 | 30 | 2 | 3 | 5 | . | . | . | ||||
| Speckled Wood | 242 | . | 3 | 1 | 4 | 2 | 3 | 19 | 5 | 12 | 10 | 1 | . | . | 5 | 7 | 23 | 20 | 33 | 37 | 34 | 11 | 1 | ||||
| Marbled White | 127 | . | . | . | . | . | . | . | . | . | . | 26 | 25 | 37 | 17 | 7 | 2 | . | . | . | . | . | . | ||||
| Gatekeeper / Hedge Brown | 419 | . | . | . | . | . | . | . | . | . | . | . | 18 | 29 | 118 | 145 | 96 | 11 | 2 | . | . | . | . | ||||
| Meadow Brown | 298 | . | . | . | . | . | . | . | . | . | . | 22 | 101 | 29 | 61 | 50 | 16 | 3 | 5 | . | . | . | . | ||||
| Ringlet | 674 | . | . | . | . | . | . | . | . | . | 3 | 113 | 117 | 246 | 101 | 25 | 11 | . | . | . | . | . | . | ||||