
| 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 | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 12 | 2 | . | . | . | |||||||||
| Essex Skipper | 7 | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 1 | . | . | . | |||||||||
| Large Skipper | 14 | . | . | . | . | . | . | . | . | 1 | . | 1 | 1 | 3 | 1 | 1 | . | . | |||||||||
| Dingy Skipper | 25 | . | . | 1 | 8 | 8 | 2 | 6 | . | . | . | . | . | . | . | . | . | . | |||||||||
| Brimstone | 52 | 2 | 5 | 2 | 7 | 1 | . | 2 | 4 | 6 | . | . | . | 6 | 4 | 1 | 1 | . | |||||||||
| Large White | 20 | . | . | 1 | 1 | . | . | . | 1 | . | . | . | 2 | 6 | . | 1 | . | . | |||||||||
| Small White | 12 | . | . | . | 1 | . | 1 | . | . | . | . | . | 1 | 3 | . | 2 | . | . | |||||||||
| Green-veined White | 13 | . | . | 1 | . | 1 | . | 1 | . | . | . | . | . | 3 | 1 | 2 | . | . | |||||||||
| Green Hairstreak | 6 | . | . | 1 | 2 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Common Blue | 80 | . | . | . | . | 2 | 10 | 9 | 12 | 5 | . | 3 | . | 6 | 7 | 12 | 3 | . | |||||||||
| Chalk-hill Blue | 106 | . | . | . | . | . | . | . | . | . | . | . | 1 | 26 | 16 | 5 | . | . | |||||||||
| Red Admiral | 4 | . | . | . | . | . | 1 | . | . | 1 | . | 1 | . | 1 | . | . | . | 4 | |||||||||
| Painted Lady | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | |||||||||
| Small Tortoiseshell | 2 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Peacock | 44 | 1 | 1 | 2 | . | 1 | . | 1 | . | . | . | . | . | 17 | 3 | 2 | . | . | |||||||||
| Comma | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | |||||||||
| Speckled Wood | 37 | . | 1 | . | . | 1 | . | . | 2 | 2 | . | 1 | . | 7 | 2 | 1 | 2 | 1 | |||||||||
| Marbled White | 182 | . | . | . | . | . | . | . | . | . | . | 61 | 38 | 8 | . | . | . | . | |||||||||
| Gatekeeper / Hedge Brown | 148 | . | . | . | . | . | . | . | . | . | . | . | 11 | 52 | 11 | 4 | . | . | |||||||||
| Meadow Brown | 170 | . | . | . | . | . | . | . | . | . | . | 29 | 33 | 15 | 8 | 2 | 2 | . | |||||||||
| Small Heath | 12 | . | . | . | . | 1 | 1 | 4 | . | 1 | . | 1 | 1 | . | 2 | . | . | . | |||||||||
| Ringlet | 217 | . | . | . | . | . | . | . | . | . | . | 95 | 17 | 2 | . | . | . | . | |||||||||