
| 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 | 159 | . | . | . | . | . | . | . | . | . | 13 | 32 | 80 | 41 | 7 | 1 | . | . | . | . | . | . | . | ||||
| Silver-spotted Skipper | 11 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 6 | 4 | 1 | . | . | . | . | ||||
| Large Skipper | 44 | . | . | . | . | . | . | 1 | 12 | 8 | 2 | 26 | 1 | . | . | . | . | . | . | . | . | . | . | ||||
| Dingy Skipper | NI | . | . | . | 8 | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Grizzled Skipper | 58 | . | . | . | 20 | . | 2 | 6 | 5 | 2 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | ||||
| Clouded Yellow | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 2 | . | . | . | . | ||||
| Brimstone | 169 | 3 | 1 | 17 | 6 | 2 | 12 | 14 | 12 | 2 | 1 | 17 | 20 | 30 | 6 | 4 | 1 | 1 | . | 2 | . | 3 | . | ||||
| Large White | 86 | . | . | . | . | 1 | 2 | 3 | . | . | 2 | 6 | 9 | 19 | 23 | 9 | 8 | 4 | . | 4 | . | 2 | . | ||||
| Small White | 187 | . | . | . | . | 2 | 4 | 2 | . | 1 | 2 | 9 | 18 | 13 | 46 | 17 | 24 | 9 | 19 | 13 | 11 | 5 | . | ||||
| Green-veined White | 23 | . | . | 2 | 2 | . | . | . | . | . | . | 1 | 5 | 1 | 3 | . | . | 3 | . | 4 | . | . | . | ||||
| Orange Tip | 4 | . | . | . | 1 | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Green Hairstreak | 15 | . | . | 3 | . | 2 | . | 1 | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Small Copper | 55 | . | . | . | . | 1 | 1 | . | 2 | . | . | 1 | . | 11 | 6 | 5 | 4 | . | . | 2 | . | 15 | 7 | ||||
| Brown Argus | 49 | . | . | . | 1 | 1 | . | 7 | . | . | . | . | 1 | . | 1 | 2 | 18 | 10 | 4 | . | . | 3 | . | ||||
| Common Blue | 1615 | . | . | . | . | 20 | 38 | 199 | 111 | 44 | 5 | 4 | 7 | 144 | 79 | 250 | 224 | 276 | 89 | 74 | 11 | 4 | 1 | ||||
| Chalk-hill Blue | 253 | . | . | . | . | . | . | . | . | . | . | 6 | 15 | 81 | 62 | 37 | 28 | 38 | 5 | . | 2 | . | . | ||||
| Adonis Blue | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 1 | . | . | . | . | ||||
| Red Admiral | 20 | . | . | . | . | . | . | . | 3 | . | . | 1 | 3 | 2 | 2 | 2 | 1 | . | . | 1 | . | 5 | . | ||||
| Painted Lady | 16 | . | . | . | . | . | . | 2 | . | 2 | . | . | 1 | 5 | 4 | 1 | 1 | . | . | . | . | . | . | ||||
| Small Tortoiseshell | 17 | . | 2 | 2 | . | . | 1 | . | . | . | . | 4 | 4 | 1 | . | . | . | . | . | 1 | . | . | . | ||||
| Peacock | 48 | 4 | 7 | 3 | . | . | 3 | . | 4 | 1 | . | . | . | 8 | 2 | . | 2 | . | . | 2 | . | 2 | . | ||||
| Comma | 19 | . | . | . | 1 | . | 1 | 1 | . | 2 | . | 3 | 3 | . | . | . | 1 | . | . | 3 | 1 | 3 | . | ||||
| Dark Green Fritillary | 4 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 2 | . | . | . | . | . | . | . | ||||
| Speckled Wood | 32 | . | . | . | . | . | 1 | 3 | 5 | 1 | . | 1 | . | . | . | 1 | 5 | 2 | 1 | 9 | 1 | 1 | . | ||||
| Marbled White | 270 | . | . | . | . | . | . | . | 1 | 7 | 107 | 107 | 35 | 13 | 3 | . | . | . | . | . | . | . | . | ||||
| Gatekeeper / Hedge Brown | 300 | . | . | . | . | . | . | . | . | . | 4 | 33 | 82 | 115 | 72 | 22 | 2 | . | . | 1 | . | . | . | ||||
| Meadow Brown | 1686 | . | . | . | . | . | . | . | 37 | 55 | 268 | 360 | 221 | 301 | 128 | 140 | 70 | 52 | 25 | 53 | 11 | 9 | 2 | ||||
| Small Heath | 239 | . | . | . | . | . | 4 | 13 | 35 | 16 | 31 | 26 | 10 | 8 | 1 | 1 | 7 | 14 | 19 | 17 | 25 | 7 | 2 | ||||
| Ringlet | 259 | . | . | . | . | . | . | . | 1 | 19 | 81 | 123 | 30 | 13 | 5 | . | . | . | . | . | . | . | . | ||||
| Six-spot Burnet | NI | . | . | . | . | . | . | . | . | . | 116 | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Narrow-bordered 5-spot Burnet | NI | . | . | . | . | . | . | . | . | . | . | 14 | . | . | . | . | . | . | . | . | . | . | . | ||||
| Silver Y | NI | . | . | . | 1 | . | . | 5 | . | . | . | 1 | 4 | 3 | . | 3 | . | . | . | 1 | . | . | . | ||||
| The Cinnabar | NI | . | . | . | 6 | 6 | 20 | 4 | 5 | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | ||||