
| 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 | . | . | . | . | . | . | . | . | . | . | . | 2 | 4 | 4 | 3 | 1 | . | . | . | . | . | |||||
| Silver-spotted Skipper | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | 1 | 1 | . | |||||
| Large Skipper | 30 | . | . | . | . | . | . | . | . | . | . | 16 | 7 | . | 1 | . | . | . | 1 | . | . | . | |||||
| Dingy Skipper | NI | . | . | . | . | . | . | 18 | 18 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | 26 | . | . | . | . | 1 | 9 | 8 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 58 | 3 | 5 | 1 | 3 | 2 | 1 | 4 | 3 | 3 | 1 | . | . | . | . | 4 | 9 | 4 | 2 | . | 2 | . | |||||
| Large White | NI | . | . | . | . | . | . | . | 2 | . | . | . | . | 8 | 6 | 7 | 7 | 1 | . | . | . | . | |||||
| Small White | 130 | . | . | . | . | 2 | . | 1 | . | . | . | 2 | 1 | 9 | 20 | 24 | 15 | 11 | 15 | 2 | . | . | |||||
| Green-veined White | 6 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | 2 | . | 1 | . | . | . | . | . | |||||
| Orange Tip | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | 10 | . | . | . | . | . | 1 | 3 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | NI | . | . | . | . | . | . | 1 | 3 | 3 | . | . | . | 1 | 3 | 4 | 1 | 2 | . | 2 | 3 | 1 | |||||
| Small Blue | 31 | . | . | . | . | . | . | . | 4 | 1 | 8 | 5 | 3 | . | . | . | . | . | . | . | . | . | |||||
| Brown Argus | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | |||||
| Common Blue | NI | . | . | . | . | . | . | . | 5 | 4 | 3 | 4 | . | . | . | 3 | 8 | 16 | 14 | 10 | 12 | 2 | |||||
| Chalk-hill Blue | 477 | . | . | . | . | . | . | . | . | . | . | . | . | 24 | 100 | 108 | 117 | . | 6 | 3 | 3 | . | |||||
| Adonis Blue | 5 | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | 2 | . | . | |||||
| Red Admiral | 13 | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 1 | 2 | . | 2 | 1 | . | . | |||||
| Small Tortoiseshell | 83 | . | . | . | . | . | . | . | . | . | . | . | 3 | 2 | . | . | . | 9 | 14 | 4 | 9 | 39 | |||||
| Peacock | 24 | . | 3 | 1 | . | 1 | . | . | . | . | . | . | . | 1 | 4 | 6 | 2 | . | . | . | . | . | |||||
| Comma | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 3 | |||||
| Dark Green Fritillary | 13 | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 3 | 1 | 2 | . | . | . | . | . | . | |||||
| Speckled Wood | 23 | . | . | . | . | . | . | 1 | . | 1 | 1 | 2 | 1 | . | 1 | 1 | 2 | . | 3 | 2 | 3 | . | |||||
| Wall Brown | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||
| Marbled White | 81 | . | . | . | . | . | . | . | . | . | . | 13 | 37 | 7 | 1 | . | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 36 | . | . | . | . | . | . | . | . | . | . | . | . | 10 | 7 | 4 | 4 | . | . | . | . | . | |||||
| Meadow Brown | 1168 | . | . | . | . | . | . | . | . | . | 2 | 15 | 39 | 17 | 46 | 137 | 249 | 165 | 139 | 117 | 84 | 37 | |||||
| Small Heath | 590 | . | . | . | . | . | . | 1 | 26 | 18 | 30 | 107 | 158 | 10 | 13 | 12 | 19 | 8 | 15 | 6 | 8 | 2 | |||||
| Ringlet | 58 | . | . | . | . | . | . | . | . | . | . | 10 | 25 | 3 | 4 | . | . | . | . | . | . | . | |||||