
| 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 | . | . | . | . | . | . | . | . | 5 | 4 | 2 | . | 1 | . | . | . | . | |||||||||
| Large Skipper | 18 | . | . | . | . | 3 | 2 | 8 | 5 | . | . | . | . | . | . | . | . | . | |||||||||
| Brimstone | 8 | 2 | 2 | 2 | . | . | . | . | 1 | . | . | 1 | . | . | . | . | . | . | |||||||||
| Large White | 15 | 1 | . | . | . | . | . | 2 | . | 2 | 4 | 1 | 1 | . | 4 | . | . | . | |||||||||
| Small White | 5 | . | . | . | . | . | . | . | . | 4 | . | . | . | . | . | . | . | . | |||||||||
| Green-veined White | 11 | . | . | 1 | . | . | . | . | 2 | 1 | . | 1 | 1 | . | 2 | . | . | 1 | |||||||||
| Orange Tip | 7 | . | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Small Copper | 8 | . | . | . | . | . | . | . | . | . | 6 | 1 | . | 1 | . | . | . | . | |||||||||
| Common Blue | 24 | . | . | . | 2 | . | . | . | . | . | 2 | 4 | 7 | 4 | 5 | . | . | . | |||||||||
| Red Admiral | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||||||||
| Small Tortoiseshell | 7 | . | 2 | . | . | . | . | 1 | . | 2 | . | . | . | . | . | 1 | . | . | |||||||||
| Peacock | 24 | 11 | 6 | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | 1 | . | |||||||||
| Comma | 5 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | |||||||||
| Speckled Wood | 107 | 1 | 5 | 4 | 2 | 1 | 3 | 2 | 5 | 2 | 5 | 19 | 10 | 9 | 13 | 11 | 2 | 1 | |||||||||
| Gatekeeper / Hedge Brown | 21 | . | . | . | . | . | . | . | . | 1 | 7 | 7 | 4 | 1 | 1 | . | . | . | |||||||||
| Meadow Brown | 253 | . | . | . | . | 3 | 24 | 63 | 51 | 47 | 42 | 12 | 9 | 1 | 1 | . | . | . | |||||||||
| Ringlet | 29 | . | . | . | . | . | 4 | 15 | 5 | 4 | . | 1 | . | . | . | . | . | . | |||||||||