
| 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 | ||||||||||||||||||||||||||
| Small Skipper | . | . | . | . | . | 2 | . | . | . | 2 | . | 2 | . | . | . | . | . | . | . | |||||||
| Large Skipper | . | . | . | . | . | . | . | 2 | 4 | . | . | . | . | . | . | . | . | . | . | |||||||
| Dingy Skipper | . | . | . | 22 | 42 | 24 | 6 | 2 | 2 | . | . | . | . | . | . | . | . | . | 2 | |||||||
| Large White | . | . | . | . | 2 | 2 | . | . | . | . | . | . | 8 | 6 | 32 | 4 | . | 10 | 2 | |||||||
| Small White | . | . | . | . | . | 2 | 2 | 2 | . | . | . | . | . | 30 | 4 | 10 | . | . | . | |||||||
| Green-veined White | . | . | . | 2 | . | 2 | . | . | . | . | . | . | . | 2 | . | . | . | . | . | |||||||
| Orange Tip | . | . | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Green Hairstreak | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | . | . | . | 10 | 4 | . | 4 | 6 | 2 | . | 2 | . | . | 2 | 8 | 14 | . | . | . | |||||||
| Brown Argus | . | . | . | 12 | 24 | 2 | 2 | . | . | . | . | . | 2 | . | . | . | . | 4 | . | |||||||
| Common Blue | . | . | . | 16 | 228 | 186 | 148 | 38 | 10 | . | . | . | . | . | 6 | 8 | 4 | 18 | 14 | |||||||
| Chalk-hill Blue | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 28 | 108 | 12 | 26 | 32 | |||||||
| Adonis Blue | . | . | . | . | 54 | 72 | 62 | . | 2 | . | . | . | . | . | 2 | 6 | 10 | 14 | 6 | |||||||
| Holly Blue | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | . | |||||||
| Red Admiral | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | |||||||
| Small Tortoiseshell | . | . | . | 2 | . | . | 2 | 4 | . | 2 | . | . | . | . | . | . | . | . | . | |||||||
| Wall Brown | . | . | 6 | 6 | . | 4 | 4 | . | . | . | . | . | 4 | . | . | . | . | . | . | |||||||
| Marbled White | . | . | . | . | . | . | . | . | . | 2 | 46 | 16 | 34 | 48 | 16 | . | . | . | . | |||||||
| Gatekeeper/Hedge Brown | . | . | . | . | . | . | . | . | . | . | . | . | 14 | 22 | 46 | 126 | 2 | . | . | |||||||
| Meadow Brown | . | . | . | . | . | . | . | . | . | 4 | 6 | 12 | 32 | 48 | 68 | 50 | 22 | 22 | 42 | |||||||
| Small Heath | . | . | . | . | 2 | 10 | 2 | 30 | 18 | 14 | 14 | 4 | 2 | 2 | 2 | 4 | . | 4 | 14 | |||||||
| Ringlet | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | 2 | . | . | . | |||||||