
| 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 | 1 | . | . | . | . | . | . | . | . | . | 3 | . | . | 3 | 1 | . | . | . | . | . | . | ||||||
| Small Skipper | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||||
| Silver-spotted Skipper | 367 | . | . | . | . | . | . | . | . | . | . | . | . | 31 | 141 | 112 | 27 | 33 | 5 | . | . | ||||||
| Large Skipper | 19 | . | . | . | . | . | 1 | 4 | 1 | 5 | . | . | 1 | 1 | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 19 | . | . | 7 | 5 | 5 | . | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | ||||||
| Grizzled Skipper | 8 | . | . | 1 | 1 | 1 | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | ||||||
| Brimstone | 6 | 2 | . | 1 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Large White | 74 | . | . | 9 | 4 | 1 | . | 2 | . | . | 12 | 1 | 2 | 9 | 5 | 4 | 7 | . | 6 | 5 | . | ||||||
| Small White | 135 | . | . | 2 | 2 | 4 | 2 | 5 | 2 | 1 | . | 13 | 5 | 12 | 11 | 5 | 17 | 17 | 8 | . | . | ||||||
| Green-veined White | 11 | 2 | . | 2 | . | . | . | 1 | . | . | 2 | . | . | 4 | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 35 | . | 1 | 14 | 8 | 5 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 7 | . | . | . | . | 2 | . | . | . | . | . | . | . | 1 | 1 | 1 | . | . | 1 | . | 1 | ||||||
| Small Blue | 30 | . | . | . | 1 | 7 | 11 | 1 | 3 | . | . | 1 | 1 | 1 | 2 | 1 | . | . | . | . | . | ||||||
| Brown Argus | 19 | . | . | . | . | . | 1 | . | 1 | . | . | . | . | 8 | 2 | 5 | 1 | 1 | . | . | . | ||||||
| Common Blue | 666 | . | . | 3 | 4 | 22 | 23 | 49 | 45 | . | . | 3 | 1 | 47 | 120 | 132 | 79 | 34 | 20 | 3 | . | ||||||
| Chalk-hill Blue | 490 | . | . | . | . | . | . | . | . | . | . | 12 | 24 | 120 | 136 | 107 | 47 | 16 | 3 | . | . | ||||||
| Adonis Blue | 59 | . | . | . | . | 3 | 2 | 6 | 2 | . | . | . | . | . | . | . | 4 | 18 | 7 | 2 | . | ||||||
| Holly Blue | 44 | 2 | 3 | 6 | 3 | 3 | 2 | 1 | . | . | . | . | . | . | 2 | 3 | 3 | 2 | . | . | . | ||||||
| Red Admiral | 17 | . | . | . | . | 1 | . | . | . | 1 | . | . | 1 | . | 2 | . | . | 1 | 2 | 2 | 1 | ||||||
| Painted Lady | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | ||||||
| Small Tortoiseshell | 13 | . | . | . | . | . | . | . | . | . | 2 | . | . | 1 | 1 | . | 2 | . | 2 | . | . | ||||||
| Peacock | 9 | 1 | . | . | 2 | . | 1 | 1 | . | . | 1 | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Comma | 5 | . | . | . | . | . | . | . | . | . | 1 | 2 | 1 | . | . | . | . | . | . | . | 1 | ||||||
| Dark Green Fritillary | 3 | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | 1 | . | . | . | . | . | . | ||||||
| Speckled Wood | 115 | . | 3 | 7 | 1 | 1 | 3 | 7 | 6 | 5 | 1 | 4 | 2 | 6 | 5 | 4 | 7 | 9 | 7 | 4 | 2 | ||||||
| Wall Brown | 47 | . | . | 1 | 2 | 3 | 3 | 2 | . | . | . | . | . | 11 | 5 | 15 | 1 | . | . | . | . | ||||||
| Marbled White | 27 | . | . | . | . | . | . | . | . | 4 | 9 | 7 | 1 | . | . | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 306 | . | . | . | . | . | . | . | . | 1 | 27 | 59 | 90 | 72 | 30 | 27 | . | . | . | . | . | ||||||
| Meadow Brown | 1542 | . | . | . | . | . | . | . | 4 | 26 | 77 | 64 | 55 | 162 | 169 | 183 | 173 | 184 | 131 | 63 | 39 | ||||||
| Small Heath | 235 | . | . | . | 5 | 4 | 17 | 23 | 27 | 29 | 12 | 1 | 1 | 3 | 7 | 3 | 13 | 27 | 17 | 14 | 5 | ||||||
| Ringlet | 73 | . | . | . | . | . | . | . | . | 3 | 2 | 6 | 4 | . | . | . | . | . | . | . | . | ||||||