
| 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 | 229 | . | . | . | . | . | . | . | . | 7 | 29 | 84 | 81 | 18 | 3 | 1 | . | . | |||||||||
| Essex Skipper | 14 | . | . | . | . | . | . | . | . | . | 1 | 6 | 4 | 2 | . | . | . | . | |||||||||
| Large Skipper | 68 | . | . | . | . | . | . | 1 | 7 | 17 | 4 | 15 | 8 | 8 | . | . | . | . | |||||||||
| Brimstone | 104 | 1 | 2 | 9 | 8 | 9 | 6 | . | . | . | . | 6 | 5 | 5 | 7 | 17 | 7 | 1 | |||||||||
| Large White | 80 | . | . | . | . | 2 | 2 | 3 | . | 1 | 8 | 14 | 21 | 12 | 5 | . | 7 | 13 | |||||||||
| Small White | 27 | . | . | . | . | . | . | . | . | . | 2 | 2 | 3 | 3 | . | 7 | 3 | 3 | |||||||||
| Green-veined White | 213 | . | . | . | 4 | 9 | 8 | 1 | . | 7 | 10 | 11 | 22 | 32 | 28 | 14 | 8 | 10 | |||||||||
| Orange Tip | 39 | 1 | 1 | 3 | 13 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Green Hairstreak | 2 | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Purple Hairstreak | 31 | . | . | . | . | . | . | . | . | . | . | 11 | 13 | 7 | . | . | . | . | |||||||||
| Small Copper | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Red Admiral | 30 | . | . | . | . | . | . | . | . | 7 | 3 | 4 | 3 | . | 1 | 2 | 3 | 4 | |||||||||
| Painted Lady | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | |||||||||
| Small Tortoiseshell | 22 | 1 | . | . | . | . | . | 1 | . | . | 2 | 4 | 2 | . | . | 1 | . | 1 | |||||||||
| Peacock | 99 | 3 | 8 | 4 | 4 | 1 | 3 | 1 | . | . | . | 6 | 24 | 20 | 1 | 2 | 1 | . | |||||||||
| Comma | 31 | . | . | . | . | . | . | . | . | 3 | 3 | 4 | 9 | 3 | 3 | . | . | 1 | |||||||||
| Speckled Wood | 46 | . | . | . | 3 | . | 2 | . | . | 1 | 1 | 3 | 6 | 9 | 5 | 3 | 1 | 2 | |||||||||
| Marbled White | 189 | . | . | . | . | . | . | . | 21 | 43 | 49 | 40 | 17 | 5 | . | . | . | . | |||||||||
| Gatekeeper / Hedge Brown | 437 | . | . | . | . | . | . | . | . | . | 20 | 70 | 142 | 125 | 12 | 5 | . | . | |||||||||
| Meadow Brown | 738 | . | . | . | . | . | . | . | 24 | 71 | 77 | 178 | 164 | 96 | 25 | 10 | . | . | |||||||||
| Small Heath | 2 | . | . | . | . | . | . | . | . | 1 | . | . | 2 | . | . | . | . | . | |||||||||
| Ringlet | 2 | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | |||||||||