
| 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 | 15 | 12 | 2 | 4 | 2 | . | . | . | . | . | . | ||||||
| Large Skipper | NI | . | . | . | . | . | . | 6 | . | 11 | 19 | 11 | 8 | 7 | 1 | . | . | . | . | . | . | ||||||
| Dingy Skipper | 7 | . | . | 1 | 1 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | ||||||
| Brimstone | NI | 3 | 4 | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Large White | 84 | . | 2 | 1 | 2 | 1 | . | . | . | 1 | 1 | 21 | 7 | 22 | 3 | 5 | 3 | 3 | . | 1 | 1 | ||||||
| Small White | NI | 3 | 3 | 16 | 4 | 8 | . | 7 | . | . | 7 | 32 | 12 | 21 | 11 | 12 | 12 | 7 | 1 | 13 | 5 | ||||||
| Green-veined White | NI | . | 1 | 1 | 1 | 1 | . | . | . | . | . | 3 | 4 | 4 | 2 | . | . | . | . | 1 | . | ||||||
| Orange Tip | 4 | . | . | 1 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | NI | . | . | 1 | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | 1 | 1 | 2 | 1 | ||||||
| Small Blue | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brown Argus | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | 1 | . | ||||||
| Common Blue | NI | . | . | 2 | 13 | 9 | . | 3 | . | 1 | . | . | . | 3 | 6 | 3 | 4 | . | 1 | 4 | 3 | ||||||
| Chalk-hill Blue | 50 | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 16 | 18 | 7 | 4 | 1 | . | . | ||||||
| Adonis Blue | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | 1 | ||||||
| Holly Blue | 4 | . | . | 2 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | ||||||
| Red Admiral | 17 | . | . | 1 | 1 | 1 | . | . | . | . | . | 2 | 2 | 1 | . | 2 | . | 3 | 1 | . | 1 | ||||||
| Painted Lady | 6 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 3 | . | . | ||||||
| Small Tortoiseshell | 49 | 3 | 7 | 2 | . | 1 | . | . | . | . | . | 11 | 4 | 4 | 1 | 1 | . | 1 | 1 | . | . | ||||||
| Peacock | NI | 9 | 11 | 9 | . | . | . | . | . | . | . | . | 2 | 3 | 1 | . | . | . | . | . | . | ||||||
| Comma | 7 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 1 | . | . | 1 | . | . | 2 | 1 | ||||||
| Speckled Wood | 153 | 7 | 2 | . | 5 | 8 | . | 2 | . | 3 | 3 | 6 | 11 | 12 | 12 | 17 | 22 | 15 | 8 | 2 | . | ||||||
| Wall Brown | NI | . | . | 1 | 1 | . | . | . | . | . | . | . | 2 | 4 | 5 | 2 | . | . | . | . | . | ||||||
| Marbled White | NI | . | . | . | . | . | . | . | . | 14 | 73 | 61 | 4 | 3 | 6 | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 288 | . | . | . | . | . | . | . | . | . | 1 | 64 | 55 | 87 | 56 | 11 | 2 | . | . | . | . | ||||||
| Meadow Brown | 174 | . | . | . | . | . | . | . | . | 3 | 18 | 36 | 17 | 28 | 23 | 6 | 2 | 2 | . | . | . | ||||||
| Small Heath | 49 | . | . | . | 3 | 14 | . | 1 | . | 4 | 7 | 2 | . | . | . | 5 | . | 1 | 1 | . | 1 | ||||||
| Ringlet | NI | . | . | . | . | . | . | . | . | 24 | 42 | 20 | 2 | . | 1 | . | . | . | . | . | . | ||||||