
| 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/Essex Skipper | 58 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Skipper | 55 | . | . | . | . | . | . | . | . | . | 17 | 23 | 5 | 4 | 1 | . | . | . | . | . | . | ||||||
| Essex Skipper | 3 | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | ||||||
| Silver-spotted Skipper | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 6 | . | . | . | . | . | ||||||
| Large Skipper | NI | . | . | . | . | . | . | 2 | 1 | 4 | 2 | 2 | . | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 18 | . | 4 | 9 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Grizzled Skipper | 2 | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | NI | 4 | 1 | . | 2 | . | . | . | 1 | . | . | 1 | 2 | 6 | 3 | . | . | . | . | . | . | ||||||
| Large White | 92 | 1 | . | . | 2 | . | 1 | . | 1 | . | 9 | 3 | 7 | 19 | 11 | 1 | . | 7 | 8 | 6 | . | ||||||
| Small White | NI | 1 | . | . | . | . | . | . | . | . | 1 | 1 | 4 | 7 | 6 | 2 | 3 | 7 | 4 | . | . | ||||||
| Orange Tip | 19 | 3 | . | 3 | 4 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | NI | . | 7 | . | 1 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brown Argus | 15 | . | . | . | 1 | . | . | 1 | . | . | . | . | . | 5 | 1 | . | 2 | 4 | . | . | . | ||||||
| Common Blue | 243 | . | . | 2 | 28 | 19 | 9 | 13 | 12 | 3 | . | 1 | . | 24 | 62 | 48 | 4 | 10 | 5 | 1 | . | ||||||
| Chalk-hill Blue | NI | . | . | . | . | . | . | . | . | . | 5 | 7 | 56 | 74 | 19 | . | 2 | 6 | 9 | . | . | ||||||
| Holly Blue | 4 | . | . | . | . | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | ||||||
| Painted Lady | 7 | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | . | 1 | . | 1 | ||||||
| Small Tortoiseshell | 19 | 3 | . | . | 1 | . | . | . | . | 2 | . | 1 | 1 | . | . | . | . | . | . | . | . | ||||||
| Peacock | NI | 5 | 1 | . | 2 | . | . | 1 | . | . | . | . | 5 | 8 | 2 | . | 1 | . | . | . | . | ||||||
| Comma | 7 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 6 | . | ||||||
| Speckled Wood | 11 | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | 2 | 1 | 2 | . | ||||||
| Marbled White | NI | . | . | . | . | . | . | . | 1 | 36 | 107 | 65 | 14 | 2 | . | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 150 | . | . | . | . | . | . | . | . | . | 8 | 58 | 21 | 24 | 9 | . | . | 13 | . | . | . | ||||||
| Meadow Brown | 1020 | . | . | . | . | . | . | 1 | 16 | 45 | 95 | 120 | 142 | 138 | 89 | 65 | 31 | 24 | 10 | 12 | 2 | ||||||
| Small Heath | 4 | . | . | . | . | . | 3 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Ringlet | NI | . | . | . | . | . | . | . | . | 14 | 17 | 7 | 2 | . | . | . | . | . | . | . | . | ||||||