
| 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 | 60 | . | . | . | . | . | . | . | 2 | 9 | 19 | 3 | 19 | 2 | . | . | . | . | . | . | . | . | |||||
| Large Skipper | 3 | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Dingy Skipper | 26 | . | . | 2 | . | . | 15 | 6 | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | 59 | . | 3 | 4 | 3 | 16 | 15 | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Clouded Yellow | 47 | . | . | . | . | . | . | . | . | . | . | 3 | 3 | 8 | 5 | 8 | 1 | 6 | . | 1 | 1 | 12 | |||||
| Brimstone | 53 | 3 | 6 | 2 | . | 5 | 2 | . | . | . | . | . | 7 | . | 12 | . | . | . | . | 1 | . | . | |||||
| Large White | 61 | . | . | 1 | . | 2 | 9 | . | . | 2 | 5 | . | 3 | 12 | 30 | 3 | . | 1 | 3 | 3 | . | . | |||||
| Small White | 192 | . | 2 | 3 | . | 7 | 11 | . | 2 | 1 | 4 | 2 | 18 | 37 | 11 | 34 | 5 | 14 | 21 | 22 | 2 | 4 | |||||
| Green-veined White | 19 | . | 2 | 2 | 1 | . | . | . | 2 | 1 | . | 1 | . | . | 3 | . | . | 3 | . | . | . | . | |||||
| Orange Tip | 10 | . | 2 | 4 | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | NI | . | . | 3 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 10 | . | . | 1 | . | . | . | . | . | . | . | 1 | 1 | . | 1 | . | . | . | 4 | 1 | 1 | 2 | |||||
| Small Blue | NI | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brown Argus | 24 | . | . | . | . | . | 1 | . | . | . | . | . | 1 | . | 12 | 8 | . | 2 | 1 | 3 | . | . | |||||
| Common Blue | 324 | . | . | . | . | 21 | 72 | 3 | 7 | . | . | . | 26 | 14 | 15 | 79 | 10 | 46 | 9 | 3 | . | . | |||||
| Chalk-hill Blue | 306 | . | . | . | . | . | . | . | . | . | 3 | 9 | 52 | 56 | 117 | 67 | 8 | 20 | 2 | . | . | . | |||||
| Adonis Blue | 83 | . | . | . | . | . | 40 | . | . | . | . | . | 1 | . | 9 | . | 1 | 26 | 2 | 3 | 2 | . | |||||
| Holly Blue | NI | . | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Duke of Burgundy Fritillary | NI | . | . | . | . | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Red Admiral | 26 | . | . | . | . | 2 | . | . | 4 | 2 | 1 | . | 3 | 4 | 3 | 1 | . | 1 | 2 | . | . | 2 | |||||
| Painted Lady | 15 | . | . | . | . | . | 4 | 1 | . | 3 | . | . | 2 | 2 | 4 | . | . | . | . | . | . | . | |||||
| Small Tortoiseshell | NI | 1 | 4 | 1 | . | . | . | . | . | . | 1 | 2 | 1 | . | . | . | . | . | . | . | . | . | |||||
| Peacock | 35 | 1 | 5 | 1 | . | . | . | 1 | . | . | . | . | 10 | 1 | 3 | 1 | . | . | . | 1 | . | . | |||||
| Comma | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | 2 | |||||
| Dark Green Fritillary | 4 | . | . | . | . | . | . | . | 2 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||||
| Silver-washed Fritillary | 3 | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | |||||
| Marsh Fritillary | 312 | . | . | . | . | 119 | 134 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Speckled Wood | 123 | . | 2 | 2 | 1 | 2 | 1 | 3 | 10 | 6 | 1 | . | 2 | 2 | 4 | 9 | 5 | 30 | 17 | 13 | 1 | 1 | |||||
| Wall Brown | 4 | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||
| Marbled White | 178 | . | . | . | . | . | . | . | 20 | 44 | 42 | 31 | 23 | 2 | 2 | . | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 226 | . | . | . | . | . | . | . | . | . | 39 | 16 | 57 | 57 | 62 | 14 | . | . | . | . | . | . | |||||
| Meadow Brown | 2588 | . | . | . | . | . | . | . | 125 | 136 | 258 | 84 | 679 | 344 | 269 | 279 | 101 | 111 | 44 | 32 | 12 | 5 | |||||
| Small Heath | 147 | . | . | . | . | 5 | 16 | 3 | 28 | 19 | 18 | 6 | 6 | 3 | . | 8 | 2 | 12 | . | 1 | 1 | . | |||||
| Ringlet | 3 | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Six-spot Burnet | NI | . | . | . | . | . | . | . | . | . | . | . | 6 | . | . | . | . | . | . | . | . | . | |||||
| Silver Y | NI | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | 1 | . | |||||
| The Cinnabar | NI | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||