
| 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 | NI | . | . | . | . | . | . | . | . | . | . | 1 | 11 | 66 | 178 | 113 | 231 | 86 | 39 | 17 | 7 | . | |||||
| Large Skipper | 64 | . | . | . | . | . | . | . | . | 5 | 10 | 12 | 18 | 10 | 5 | 1 | 1 | 2 | . | . | . | . | |||||
| Dingy Skipper | 2 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | 4 | . | . | . | . | . | 2 | 1 | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 150 | 4 | . | 9 | 5 | . | 5 | 2 | 3 | 2 | 1 | 1 | 3 | 2 | 4 | 3 | 28 | 26 | 10 | 19 | 6 | 3 | |||||
| Large White | 45 | . | . | 1 | . | . | 5 | . | 1 | . | 1 | 1 | 1 | 3 | 5 | 3 | 4 | 10 | 3 | 1 | 1 | . | |||||
| Small White | 140 | . | . | 1 | 2 | 2 | 1 | . | . | 2 | 1 | 2 | 3 | 3 | 9 | 8 | 24 | 29 | 30 | 12 | 5 | 1 | |||||
| Green-veined White | 18 | . | . | 3 | 3 | 1 | . | 2 | . | . | . | . | . | . | . | . | . | 4 | 2 | . | . | . | |||||
| Orange Tip | 2 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Purple Hairstreak | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||
| Small Copper | 30 | . | . | . | . | 2 | 4 | . | . | . | . | . | . | . | 1 | . | 3 | 7 | 4 | 2 | 2 | 1 | |||||
| Brown Argus | 8 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 3 | 2 | . | |||||
| Common Blue | 41 | . | . | . | . | . | . | 4 | . | . | . | . | . | . | 1 | . | 2 | 4 | 9 | 4 | 10 | . | |||||
| Holly Blue | 2 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| White Admiral | 3 | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | . | . | |||||
| Red Admiral | 18 | . | . | 1 | 1 | . | . | 1 | . | . | . | . | . | . | . | 3 | 2 | . | 2 | 1 | . | 3 | |||||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Tortoiseshell | 28 | 1 | 3 | . | . | . | . | . | . | . | . | . | 2 | . | 1 | . | 1 | . | 4 | 2 | 5 | 3 | |||||
| Peacock | 18 | . | 1 | . | 2 | . | . | . | . | . | . | . | . | . | . | 3 | 5 | 4 | 2 | . | . | . | |||||
| Comma | 21 | 2 | 4 | . | . | . | . | 1 | . | . | . | 1 | 5 | 1 | 1 | . | . | . | . | . | 1 | 1 | |||||
| Pearl-bordered Fritillary | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Dark Green Fritillary | 4 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 3 | . | . | . | . | . | |||||
| Speckled Wood | 217 | . | . | 2 | 2 | . | 1 | 4 | 9 | 9 | 12 | 9 | 7 | 3 | 2 | 6 | 10 | 14 | 22 | 32 | 34 | 12 | |||||
| Wall Brown | 57 | . | . | . | 1 | 3 | 4 | . | . | . | . | . | . | . | . | . | 9 | 21 | 11 | 6 | . | . | |||||
| Gatekeeper / Hedge Brown | 438 | . | . | . | . | . | . | . | . | . | . | . | 19 | 42 | 91 | 90 | 97 | 73 | 20 | 4 | 1 | . | |||||
| Meadow Brown | 1790 | . | . | . | . | . | . | . | 1 | 3 | 24 | 56 | 102 | 160 | 175 | 250 | 263 | 262 | 206 | 140 | 94 | 5 | |||||
| Small Heath | 235 | . | . | . | . | 3 | 15 | 20 | 20 | 6 | 27 | 16 | 35 | 26 | 19 | 2 | 15 | 2 | 2 | . | 6 | . | |||||
| Ringlet | 154 | . | . | . | . | . | . | . | . | 1 | 13 | 50 | 47 | 25 | 13 | 2 | 2 | 1 | . | . | . | . | |||||