
| 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 | . | . | . | . | . | . | . | . | . | . | 1 | 4 | 35 | 6 | 11 | 1 | 2 | . | . | . | ||||||
| Silver-spotted Skipper | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | ||||||
| Large Skipper | 5 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | ||||||
| Dingy Skipper | 5 | . | . | . | . | 2 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Grizzled Skipper | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 63 | 2 | . | 4 | 4 | 7 | 1 | 1 | 2 | 1 | . | . | . | . | 2 | 14 | 2 | 5 | . | 7 | 2 | ||||||
| Large White | 73 | . | . | . | . | . | . | . | . | . | . | . | 6 | 30 | 2 | 9 | 1 | 5 | . | 3 | 1 | ||||||
| Small White | 113 | . | 1 | . | 6 | 6 | 1 | . | . | . | . | . | . | 10 | 14 | 28 | 8 | 11 | 8 | 1 | 1 | ||||||
| Green-veined White | 51 | . | . | . | . | 3 | 1 | 16 | 11 | 1 | . | . | 1 | . | 2 | 3 | 1 | 2 | . | . | . | ||||||
| Orange Tip | 10 | . | . | 3 | 2 | 1 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 4 | . | . | . | 1 | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 47 | . | . | . | . | 1 | 2 | . | 1 | . | . | . | . | 11 | 7 | 10 | 3 | 1 | . | . | . | ||||||
| Brown Argus | 10 | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | 1 | 5 | . | . | . | . | . | ||||||
| Common Blue | 69 | . | . | . | . | . | . | 10 | 5 | 5 | 4 | 3 | . | . | 1 | 10 | 5 | 7 | . | 9 | 4 | ||||||
| Chalk-hill Blue | 46 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 12 | 19 | 3 | 1 | . | . | . | ||||||
| Holly Blue | 6 | . | . | . | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Tortoiseshell | 78 | . | . | 2 | . | . | . | . | . | . | 1 | 1 | 2 | 23 | 11 | 5 | 1 | . | 2 | 5 | 8 | ||||||
| Peacock | 68 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 22 | 24 | 4 | 3 | . | 2 | . | ||||||
| Comma | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Dark Green Fritillary | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Speckled Wood | 58 | . | . | . | 1 | 1 | . | . | 3 | 4 | 7 | 2 | 2 | 1 | 5 | 8 | 6 | 5 | 2 | 2 | 1 | ||||||
| Wall Brown | 14 | . | . | . | . | 2 | 1 | . | . | . | . | . | . | . | 1 | . | 5 | . | 1 | 1 | 1 | ||||||
| Marbled White | 52 | . | . | . | . | . | . | . | . | . | 1 | 10 | 5 | 22 | . | 2 | 1 | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 37 | . | . | . | . | . | . | . | . | . | . | . | 1 | 17 | 1 | 7 | 2 | . | . | . | . | ||||||
| Meadow Brown | 915 | . | . | . | . | . | . | . | . | 32 | 85 | 95 | 68 | 179 | 82 | 125 | 47 | 29 | 8 | 13 | 5 | ||||||
| Small Heath | 175 | . | . | . | . | . | 6 | 11 | 7 | 23 | 22 | 20 | 12 | 29 | 3 | 3 | 2 | 3 | 1 | 1 | 1 | ||||||
| Ringlet | 20 | . | . | . | . | . | . | . | . | 1 | 2 | 1 | 3 | 7 | 1 | . | . | . | . | . | . | ||||||