
| 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 | NI | . | . | . | . | . | . | . | . | . | . | . | 4 | 18 | 9 | 4 | 5 | . | . | . | . | ||||||
| Silver-spotted Skipper | 57 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 9 | 10 | 25 | . | ||||||
| Large Skipper | NI | . | . | . | . | . | . | . | 2 | 4 | 1 | 4 | 1 | 2 | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 52 | . | . | . | 12 | 19 | 14 | 1 | 2 | 1 | . | . | . | . | . | . | 1 | . | . | . | . | ||||||
| Grizzled Skipper | 19 | . | . | . | . | 12 | 5 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 68 | . | 4 | 8 | 8 | 6 | 3 | 5 | 2 | 1 | . | . | . | . | 2 | 3 | 5 | 3 | 9 | 4 | . | ||||||
| Large White | 38 | . | . | . | . | . | . | 1 | 2 | . | . | . | . | 1 | 8 | 5 | 4 | . | . | 8 | 2 | ||||||
| Small White | 66 | . | . | . | . | . | . | 3 | 1 | 1 | . | . | 1 | 3 | 9 | 1 | 3 | 4 | 10 | 6 | 9 | ||||||
| Green-veined White | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Orange Tip | 3 | . | . | 2 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 5 | . | . | . | . | 1 | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 44 | . | . | . | 1 | 3 | 2 | . | 1 | . | . | 1 | 3 | 1 | . | 2 | 4 | 5 | 4 | 8 | 2 | ||||||
| Small Blue | NI | . | . | . | . | . | . | 4 | 22 | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Common Blue | 264 | . | . | . | . | . | 10 | 18 | 30 | 7 | 2 | 1 | . | . | 5 | 11 | 24 | 43 | 31 | 28 | 8 | ||||||
| Chalk-hill Blue | 799 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 177 | 209 | 193 | 109 | 33 | 50 | . | ||||||
| Holly Blue | 28 | . | . | 1 | 1 | 7 | 3 | 2 | 1 | . | . | . | . | 4 | 6 | 1 | 1 | . | . | . | . | ||||||
| Duke of Burgundy Fritillary | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | 3 | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | . | . | . | . | ||||||
| Painted Lady | 3 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | . | . | . | ||||||
| Small Tortoiseshell | 17 | . | 1 | . | . | . | . | . | . | 2 | 1 | 1 | . | 2 | . | 1 | . | . | . | 2 | 1 | ||||||
| Peacock | 14 | 1 | 2 | . | 3 | . | 1 | . | . | . | . | . | . | . | 5 | . | . | 1 | . | . | . | ||||||
| Comma | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | ||||||
| Dark Green Fritillary | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Speckled Wood | 37 | 2 | 1 | 1 | . | 2 | . | 3 | 2 | 1 | . | . | . | . | 3 | 2 | 3 | 3 | . | 5 | 1 | ||||||
| Wall Brown | 2 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | ||||||
| Marbled White | 86 | . | . | . | . | . | . | . | . | . | 4 | 25 | 24 | 29 | 2 | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 33 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 6 | 11 | 6 | 2 | 1 | 1 | 2 | ||||||
| Meadow Brown | 1437 | . | . | . | . | . | . | . | . | 6 | 17 | 19 | 16 | 34 | 89 | 106 | 215 | 229 | 183 | 261 | 58 | ||||||
| Small Heath | 131 | . | . | . | . | 1 | . | . | 4 | 8 | 5 | 17 | 10 | 21 | 3 | 2 | . | . | 2 | 15 | 11 | ||||||
| Ringlet | 42 | . | . | . | . | . | . | . | . | . | 1 | 2 | 11 | 6 | 21 | . | . | . | . | . | . | ||||||