
| 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/Essex Skipper | NI | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | ||||||
| Large Skipper | 9 | . | . | . | . | . | . | . | . | . | . | 3 | . | 2 | 1 | . | . | . | . | . | . | ||||||
| Brimstone | 21 | 6 | 2 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | ||||||
| Large White | 15 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 3 | 3 | 1 | 3 | . | 1 | 2 | ||||||
| Small White | 2 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | ||||||
| Green-veined White | 33 | . | . | . | 4 | 6 | 3 | . | . | . | . | . | . | 5 | 3 | 3 | 1 | 2 | . | 3 | . | ||||||
| Orange Tip | 19 | . | 8 | 2 | 3 | 4 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||
| Common Blue | 4 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | 2 | . | ||||||
| Red Admiral | 3 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | ||||||
| Small Tortoiseshell | 32 | 7 | 2 | 1 | . | . | . | 1 | . | 3 | . | 1 | . | 4 | 1 | 1 | . | . | . | . | . | ||||||
| Peacock | 74 | 13 | 20 | 6 | 9 | 2 | 3 | . | . | . | . | . | . | . | . | 4 | 2 | 1 | 1 | . | . | ||||||
| Comma | 6 | . | . | . | . | . | . | . | . | . | . | 2 | . | 1 | 1 | . | . | . | . | . | . | ||||||
| Speckled Wood | 123 | . | 4 | 16 | 4 | 1 | 7 | 1 | 1 | 2 | 4 | 2 | . | 1 | 4 | 11 | 8 | 7 | 17 | 16 | 9 | ||||||
| Gatekeeper / Hedge Brown | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | 2 | 2 | . | . | ||||||
| Meadow Brown | 173 | . | . | . | . | . | . | . | . | 2 | 4 | 16 | 25 | 38 | 30 | 16 | 17 | 12 | 6 | 4 | . | ||||||
| Ringlet | 10 | . | . | . | . | . | . | . | . | . | 1 | 1 | 2 | 3 | . | 1 | . | . | . | . | . | ||||||