
| 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 | NI | . | . | . | . | . | . | . | . | 1 | 12 | 4 | 17 | 11 | 21 | 2 | 2 | . | . | . | . | ||||||
| Silver-spotted Skipper | 131 | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 26 | 52 | 32 | 10 | 5 | . | . | ||||||
| Large Skipper | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 29 | . | . | . | 2 | 13 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Grizzled Skipper | 11 | . | . | 1 | 2 | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | ||||||
| Brimstone | 31 | 2 | 2 | . | 6 | 5 | 1 | 1 | . | . | . | . | 1 | 5 | 3 | . | . | 2 | . | . | . | ||||||
| Large White | 49 | . | . | 1 | . | 2 | . | . | 1 | 1 | . | 10 | 5 | 3 | 5 | 5 | 4 | 3 | 1 | 2 | 1 | ||||||
| Small White | 70 | 1 | . | . | 1 | . | 3 | 1 | . | . | . | 2 | 6 | 5 | 14 | 8 | 6 | 9 | 1 | . | . | ||||||
| Green-veined White | 4 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | . | . | . | ||||||
| Orange Tip | 2 | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 13 | . | . | 1 | 4 | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 41 | . | . | . | . | . | 1 | 1 | 1 | . | 2 | . | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 8 | 13 | ||||||
| Brown Argus | 73 | . | . | . | . | . | . | 1 | 1 | . | . | . | 1 | 3 | 17 | 11 | 13 | 7 | 8 | . | 1 | ||||||
| Common Blue | 368 | . | . | . | . | . | . | 24 | 16 | 8 | 1 | . | . | 12 | 24 | 68 | 84 | 54 | 30 | 7 | 2 | ||||||
| Chalk-hill Blue | 152 | . | . | . | . | . | . | . | . | . | . | . | 3 | 22 | 45 | 48 | 18 | 4 | 1 | . | . | ||||||
| Adonis Blue | 275 | . | . | . | . | 1 | 10 | 11 | 2 | 1 | . | . | . | 1 | 6 | 2 | 64 | 64 | 40 | 7 | 1 | ||||||
| Holly Blue | 7 | . | . | . | 2 | 1 | 1 | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | ||||||
| Red Admiral | 27 | . | . | . | 1 | 1 | 2 | . | . | 2 | 1 | 2 | . | 1 | 2 | . | 1 | . | . | 2 | . | ||||||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | ||||||
| Small Tortoiseshell | 7 | . | . | . | . | 1 | . | . | . | 2 | . | . | . | . | 1 | 2 | . | 1 | . | . | . | ||||||
| Peacock | 9 | 1 | . | 1 | 2 | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | 1 | . | ||||||
| Comma | 9 | . | . | . | . | . | . | . | . | 1 | 1 | 3 | 1 | . | 1 | . | . | . | . | 1 | . | ||||||
| Speckled Wood | 6 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | 3 | . | . | . | . | ||||||
| Wall Brown | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | ||||||
| Marbled White | 181 | . | . | . | . | . | . | . | . | 13 | 25 | 47 | 75 | 2 | 1 | 2 | 1 | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 558 | . | . | . | . | . | . | . | . | . | . | 7 | 77 | 83 | 166 | 113 | 8 | . | . | . | . | ||||||
| Meadow Brown | 3107 | . | . | . | . | . | . | . | 3 | 66 | 80 | 164 | 191 | 377 | 492 | 535 | 351 | 182 | 174 | 70 | 37 | ||||||
| Small Heath | 247 | . | . | . | . | 6 | 1 | 23 | 31 | 55 | 15 | 16 | 2 | . | 2 | . | 6 | 5 | 28 | 9 | 3 | ||||||
| Ringlet | 13 | . | . | . | . | . | . | . | . | . | 6 | 6 | 1 | . | . | . | . | . | . | . | . | ||||||
| Six-spot Burnet | NI | . | . | . | . | . | . | . | . | 1 | 1 | 3 | 27 | 16 | 3 | 1 | 1 | . | . | . | . | ||||||
| The Cinnabar | NI | . | . | . | . | . | . | 1 | 1 | 1 | . | 1 | . | . | . | . | . | . | . | . | . | ||||||