
| 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 | 52 | . | . | . | . | 2 | 11 | 13 | 19 | 8 | . | . | . | . | . | . | . | . | . | ||||||||
| Large Skipper | 51 | . | . | . | 10 | 18 | 12 | . | 2 | 1 | . | . | . | . | . | . | . | . | . | ||||||||
| Dingy Skipper | NI | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Wood White | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | ||||||||
| Clouded Yellow | 3 | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | 1 | . | . | . | ||||||||
| Brimstone | NI | 4 | 10 | 17 | 2 | 1 | 6 | 1 | 3 | 14 | . | 10 | 10 | . | 1 | 9 | 7 | 3 | . | ||||||||
| Large White | 28 | . | . | . | . | 1 | . | . | 4 | 4 | 5 | 9 | 4 | 1 | . | . | 1 | . | . | ||||||||
| Small White | 240 | . | 4 | 7 | . | 1 | 1 | 14 | 31 | 32 | 28 | 28 | 33 | 10 | 10 | 12 | 5 | 2 | 3 | ||||||||
| Green-veined White | 10 | . | . | . | 1 | . | 1 | . | 1 | . | 1 | 1 | 1 | 2 | 1 | 1 | . | . | . | ||||||||
| Orange Tip | NI | . | 6 | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Purple Hairstreak | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Small Copper | 9 | . | . | . | . | . | . | . | . | . | 3 | . | . | 1 | . | 3 | . | 1 | 1 | ||||||||
| Common Blue | 38 | . | . | . | 3 | . | . | . | . | . | 1 | 12 | 10 | 7 | 1 | 1 | . | . | . | ||||||||
| White Admiral | 21 | . | . | . | . | 3 | 9 | 2 | 4 | 3 | . | . | . | . | . | . | . | . | . | ||||||||
| Red Admiral | 113 | . | . | 2 | 2 | 2 | 6 | 7 | 12 | 31 | 8 | 5 | 10 | 2 | 5 | 8 | 6 | 1 | 1 | ||||||||
| Painted Lady | 7 | . | . | . | . | . | 1 | . | . | . | 3 | . | 3 | . | . | . | . | . | . | ||||||||
| Small Tortoiseshell | 6 | . | 1 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | 2 | . | . | ||||||||
| Peacock | 100 | 6 | 1 | 2 | . | . | . | 1 | . | 46 | . | 9 | 9 | 1 | 1 | 2 | 2 | . | . | ||||||||
| Comma | 68 | 3 | 2 | 3 | . | 2 | 6 | 3 | 5 | . | . | 2 | 4 | 2 | 1 | 4 | 18 | 1 | . | ||||||||
| Dark Green Fritillary | 2 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Silver-washed Fritillary | 406 | . | . | . | . | 10 | 34 | 24 | 32 | 65 | 43 | 92 | 92 | 9 | 2 | 1 | . | . | . | ||||||||
| Speckled Wood | 242 | . | 1 | 4 | 10 | 8 | 14 | 10 | 13 | 5 | . | 6 | 37 | 26 | 34 | 41 | 14 | 4 | . | ||||||||
| Marbled White | 102 | . | . | . | . | 6 | 15 | 30 | 35 | 17 | 1 | . | . | . | . | . | . | . | . | ||||||||
| Gatekeeper / Hedge Brown | 185 | . | . | . | . | . | 2 | 11 | 24 | 66 | 36 | 31 | 10 | 3 | 1 | 5 | . | . | . | ||||||||
| Meadow Brown | 265 | . | . | . | 2 | 28 | 42 | 27 | 19 | 17 | 50 | 33 | 24 | 17 | 1 | 6 | . | 2 | . | ||||||||
| Ringlet | 515 | . | . | . | . | 36 | 69 | 154 | 199 | 62 | . | 4 | 1 | . | . | . | . | . | . | ||||||||