
| 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 | 22 | . | . | . | . | . | . | . | . | 1 | 3 | 2 | 3 | 3 | 1 | . | . | 1 | . | ||||||||
| Large Skipper | 8 | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | . | . | . | ||||||||
| Dingy Skipper | 4 | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Brimstone | 141 | 6 | 2 | 12 | 15 | 5 | . | 1 | 1 | . | . | 1 | . | 25 | 14 | 14 | . | . | . | ||||||||
| Large White | 48 | . | . | . | . | . | 3 | . | . | . | . | 1 | . | 13 | 4 | 11 | 1 | 1 | 1 | ||||||||
| Small White | 69 | . | . | . | . | 3 | . | 1 | . | . | 1 | 4 | 3 | 13 | 19 | 4 | 5 | . | . | ||||||||
| Green-veined White | 10 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||||
| Orange Tip | 16 | . | . | 3 | 5 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Small Copper | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||||
| Common Blue | 37 | . | . | . | . | 1 | 1 | 3 | 1 | . | . | . | . | 1 | 2 | 6 | 3 | . | . | ||||||||
| Chalk-hill Blue | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||||
| Holly Blue | 11 | . | . | 3 | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||||
| Small Tortoiseshell | 28 | . | 1 | . | 3 | . | . | . | . | . | . | . | . | . | 1 | . | 5 | 7 | 1 | ||||||||
| Peacock | 15 | 2 | 2 | 1 | 1 | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | 1 | ||||||||
| Comma | 7 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Speckled Wood | 43 | . | 1 | 3 | 4 | 1 | 4 | . | . | . | . | 1 | . | 5 | 2 | 1 | 3 | . | 4 | ||||||||
| Marbled White | 166 | . | . | . | . | . | . | 1 | 18 | 46 | 41 | 36 | 12 | 5 | . | . | . | . | . | ||||||||
| Gatekeeper / Hedge Brown | 389 | . | . | . | . | . | . | . | . | 8 | 57 | 144 | 70 | 77 | 40 | 2 | . | . | . | ||||||||
| Meadow Brown | 804 | . | . | . | . | . | 1 | 10 | 26 | 70 | 77 | 153 | 53 | 197 | 78 | 99 | 27 | 7 | . | ||||||||
| Small Heath | 52 | . | . | . | . | . | 6 | 9 | 17 | 5 | 1 | 1 | . | . | . | 1 | . | . | . | ||||||||
| Ringlet | 51 | . | . | . | . | . | . | . | 19 | 21 | 3 | 2 | . | . | . | . | . | . | . | ||||||||