
| 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 | 35 | . | . | . | . | . | . | . | 6 | . | . | 2 | 9 | 6 | 3 | . | . | . | . | . | . | . | |||||
| Large Skipper | 23 | . | . | . | . | . | . | . | . | 9 | 1 | 8 | . | 1 | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | NI | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Clouded Yellow | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||
| Brimstone | 223 | 2 | 9 | 16 | 15 | 3 | 10 | . | 3 | 5 | 1 | . | 4 | 56 | 33 | 4 | . | 1 | 2 | 5 | 8 | . | |||||
| Large White | 143 | . | . | . | . | 1 | . | . | 1 | 2 | . | 10 | 49 | 6 | 11 | 12 | 2 | 1 | 3 | . | 12 | . | |||||
| Small White | 325 | . | 5 | 2 | 3 | 1 | 4 | 2 | 2 | 4 | . | 3 | 53 | 15 | 26 | 50 | 28 | 47 | 27 | 5 | 4 | 4 | |||||
| Green-veined White | 70 | . | . | 1 | . | . | . | 1 | . | . | . | 4 | . | 10 | 2 | 8 | 12 | 10 | 6 | 9 | . | . | |||||
| Orange Tip | 25 | . | 5 | 4 | 4 | 6 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | NI | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | 1 | . | . | |||||
| Brown Argus | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | . | 2 | 1 | . | . | . | |||||
| Common Blue | 57 | . | . | . | . | 3 | 2 | 2 | 3 | 3 | 1 | . | . | 4 | 9 | 8 | 1 | 8 | 2 | 2 | 1 | 2 | |||||
| Chalk-hill Blue | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | |||||
| Adonis Blue | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 2 | 1 | . | . | |||||
| Holly Blue | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | . | . | . | . | . | . | |||||
| White Admiral | 4 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | |||||
| Red Admiral | 249 | . | . | 1 | . | . | 1 | . | 2 | 8 | 4 | 3 | 17 | 37 | 20 | 18 | 53 | 43 | 8 | 3 | . | . | |||||
| Painted Lady | 21 | . | . | . | . | 1 | . | 1 | 1 | 1 | 2 | 1 | 1 | 3 | 4 | 1 | . | 1 | . | . | . | . | |||||
| Small Tortoiseshell | 141 | 1 | 1 | . | . | . | 2 | . | 1 | 3 | 5 | 1 | 3 | 6 | 31 | 53 | 8 | 10 | 1 | . | 4 | 1 | |||||
| Peacock | 279 | 3 | 14 | 15 | 8 | 4 | 2 | 2 | . | . | . | . | . | 82 | 78 | 13 | . | 1 | 1 | . | . | 1 | |||||
| Comma | 53 | . | . | 3 | . | . | . | . | . | . | . | 1 | 8 | 2 | 3 | 3 | 1 | 2 | 9 | 6 | 5 | 4 | |||||
| Dark Green Fritillary | 7 | . | . | . | . | . | . | . | . | 2 | 3 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Silver-washed Fritillary | 225 | . | . | . | . | . | . | . | . | 6 | 1 | 14 | 38 | 40 | 38 | 28 | 8 | 5 | . | . | . | . | |||||
| Speckled Wood | 286 | . | . | 1 | 1 | 2 | 2 | 2 | 12 | 14 | 6 | 4 | 1 | 1 | 1 | 56 | 55 | 63 | 25 | 15 | 8 | 7 | |||||
| Marbled White | 71 | . | . | . | . | . | . | . | . | 1 | . | 27 | 18 | 1 | . | . | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 144 | . | . | . | . | . | . | . | . | . | . | 6 | 15 | 38 | 15 | 37 | 3 | 1 | . | . | . | . | |||||
| Meadow Brown | 331 | . | . | . | . | . | . | . | 1 | 6 | 12 | 38 | 18 | 59 | 39 | 50 | 25 | 13 | 5 | 1 | . | 1 | |||||
| Small Heath | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||
| Ringlet | 279 | . | . | . | . | . | . | . | . | 1 | 10 | 41 | 115 | 7 | 11 | 7 | . | . | . | . | . | . | |||||