
| 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 | 12 | . | . | . | . | . | . | . | . | 1 | . | 4 | 4 | 1 | 2 | . | . | . | . | . | |||||||
| Essex Skipper | 21 | . | . | . | . | . | . | . | . | . | 1 | 8 | 9 | 3 | . | . | . | . | . | . | |||||||
| Large Skipper | 36 | . | . | . | . | . | 2 | 1 | 2 | 10 | 5 | 4 | 2 | 1 | . | . | . | . | . | . | |||||||
| Brimstone | 27 | . | . | 4 | . | 2 | . | . | 1 | . | . | . | 4 | 4 | 7 | 1 | . | . | 1 | . | |||||||
| Large White | 38 | . | . | . | 1 | 1 | . | 2 | . | . | 1 | 2 | 11 | 3 | 13 | 1 | . | . | . | . | |||||||
| Small White | 46 | . | 1 | . | 3 | 3 | 3 | 1 | . | . | 1 | 2 | 1 | 2 | 11 | 2 | 3 | 1 | . | . | |||||||
| Green-veined White | 67 | . | 4 | 2 | 9 | . | 4 | . | . | 1 | 2 | 13 | 2 | 7 | 7 | 6 | 1 | . | . | . | |||||||
| Orange Tip | 13 | . | 1 | 5 | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Common Blue | 4 | . | . | . | . | . | . | 2 | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Holly Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||||
| Red Admiral | 10 | . | . | . | . | . | . | . | 1 | 1 | 1 | 2 | 3 | . | 1 | . | . | . | . | . | |||||||
| Small Tortoiseshell | 33 | . | 7 | 3 | 2 | 5 | . | . | . | . | 2 | 4 | . | 1 | . | . | . | . | . | . | |||||||
| Peacock | 59 | . | 5 | 8 | 3 | 2 | . | . | . | . | . | . | 3 | 18 | 11 | 2 | . | . | . | . | |||||||
| Comma | 23 | . | . | 2 | . | . | . | . | . | . | 4 | 7 | 5 | 4 | . | 1 | . | . | . | . | |||||||
| Speckled Wood | 25 | . | . | 1 | . | . | 1 | 2 | . | . | . | . | . | . | 3 | 9 | 4 | 2 | . | . | |||||||
| Marbled White | 31 | . | . | . | . | . | . | . | . | 4 | 10 | 13 | 1 | 1 | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 130 | . | . | . | . | . | . | . | . | . | . | 24 | 27 | 48 | 25 | 5 | . | . | . | . | |||||||
| Meadow Brown | 98 | . | . | . | . | . | . | . | 5 | 27 | 21 | 9 | 5 | 2 | 6 | 7 | . | . | . | . | |||||||
| Ringlet | 95 | . | . | . | . | . | . | . | . | 48 | 17 | 5 | 1 | . | . | . | . | . | . | . | |||||||