
| 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 | ||||||||||||||||||||||||||
| Small Skipper | . | . | . | . | . | . | . | . | 9 | 56 | 327 | 255 | 302 | 126 | 73 | 18 | 2 | 1 | . | . | . | |||||
| Large Skipper | . | . | . | . | . | . | 6 | 15 | 54 | 84 | 146 | 15 | 5 | 1 | 2 | . | . | . | . | . | . | |||||
| Dingy Skipper | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | . | . | . | . | . | 1 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Wood White | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 2 | 2 | 3 | 1 | 2 | 1 | 1 | . | . | . | . | . | . | . | . | . | 8 | 16 | . | 5 | 16 | |||||
| Large White | . | . | 1 | . | . | 2 | 3 | 3 | . | . | 2 | 4 | 19 | 23 | 13 | 19 | 9 | 11 | 6 | . | . | |||||
| Small White | . | . | . | . | 1 | . | . | . | . | . | 3 | 1 | 9 | 23 | 32 | 63 | 44 | 63 | 12 | 11 | 2 | |||||
| Green-veined White | . | 3 | 2 | 2 | 18 | 5 | 3 | . | 1 | . | . | . | 7 | 27 | 12 | 21 | 20 | 13 | 6 | 1 | . | |||||
| Orange Tip | . | . | 2 | . | 2 | 6 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brown Hairstreak | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 3 | 4 | . | 2 | . | |||||
| Purple Hairstreak | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||
| Black Hairstreak | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 5 | 1 | 1 | 1 | . | . | . | |||||
| Common Blue | . | . | . | . | . | . | 1 | 2 | 10 | 2 | . | . | . | 6 | 7 | 9 | 8 | 14 | 8 | 2 | . | |||||
| Duke of Burgundy Fritillary | . | . | . | 1 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| White Admiral | . | . | . | . | . | . | . | . | . | 4 | 3 | 8 | 3 | 1 | 1 | . | . | . | . | . | . | |||||
| Purple Emperor | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | . | . | . | . | |||||
| Red Admiral | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | 1 | 2 | . | |||||
| Painted Lady | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||
| Small Tortoiseshell | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | 2 | . | 1 | 3 | 5 | 7 | |||||
| Peacock | 1 | 2 | 4 | . | 1 | 1 | 1 | . | . | . | . | . | . | 2 | 28 | 20 | 11 | 19 | 5 | 3 | 1 | |||||
| Comma | . | 1 | . | . | . | . | . | . | . | . | 1 | 2 | 2 | . | 1 | . | 4 | 6 | 3 | 9 | 7 | |||||
| Pearl-bordered Fritillary | . | . | . | . | 2 | 8 | 6 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Dark Green Fritillary | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | |||||
| Marsh Fritillary | . | . | . | . | . | 4 | 14 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Speckled Wood | . | 12 | 11 | 4 | 17 | 6 | 1 | 5 | 17 | 5 | 8 | 4 | 5 | 15 | 19 | 29 | 43 | 66 | 69 | 22 | 14 | |||||
| Wall Brown | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | |||||
| Marbled White | . | . | . | . | . | . | . | . | 3 | 29 | 42 | 65 | 27 | 11 | 1 | 1 | . | . | . | . | . | |||||
| Gatekeeper/Hedge Brown | . | . | . | . | . | . | . | . | . | . | 6 | 28 | 97 | 90 | 52 | 33 | 17 | 8 | 2 | . | . | |||||
| Meadow Brown | . | . | . | . | . | . | . | . | 47 | 134 | 162 | 203 | 147 | 22 | 21 | 13 | 2 | 1 | . | . | . | |||||
| Small Heath | . | . | . | . | 1 | 4 | 8 | 4 | 2 | . | . | . | . | . | . | 1 | 1 | 9 | . | . | 1 | |||||
| Ringlet | . | . | . | . | . | . | . | . | 8 | 130 | 187 | 191 | 215 | 60 | 24 | 12 | 4 | . | . | . | . | |||||