
| 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 | 627 | . | . | . | . | . | . | . | . | . | 32 | 179 | 87 | 234 | 88 | 114 | 5 | 1 | 1 | . | |||||||
| Large Skipper | 78 | . | . | . | . | . | . | 1 | 10 | 8 | 22 | 21 | 2 | 2 | . | 6 | . | . | . | . | |||||||
| Brimstone | 4 | . | . | . | . | . | 3 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||||
| Large White | 57 | . | . | . | . | . | . | 5 | . | . | . | 13 | 9 | 10 | 7 | 8 | 3 | . | . | . | |||||||
| Small White | 33 | . | . | . | 2 | . | . | . | 1 | . | . | 4 | 1 | 2 | . | 10 | 7 | 1 | 5 | . | |||||||
| Green-veined White | 138 | . | 1 | 1 | 3 | 11 | 2 | 5 | 1 | . | . | 3 | 3 | 31 | 19 | 20 | 15 | 14 | 5 | 1 | |||||||
| Orange Tip | 23 | . | . | . | 19 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 6 | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | 4 | . | 1 | . | |||||||
| Brown Argus | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | |||||||
| Common Blue | 80 | . | . | . | . | 3 | 10 | 17 | 3 | . | . | 1 | . | . | 3 | 6 | 12 | 6 | 9 | . | |||||||
| Holly Blue | 2 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | |||||||
| Small Tortoiseshell | 11 | . | . | . | . | . | . | . | . | . | . | 1 | . | 4 | 3 | . | . | . | 3 | . | |||||||
| Peacock | 54 | 7 | 2 | . | . | . | . | . | . | . | . | . | . | 3 | 18 | 20 | 2 | . | 2 | . | |||||||
| Speckled Wood | 28 | . | 1 | . | 1 | 1 | 1 | 4 | . | 1 | . | . | . | 2 | 3 | . | 5 | 5 | 1 | 1 | |||||||
| Marbled White | 68 | . | . | . | . | . | . | . | 2 | 5 | 11 | 33 | 10 | 8 | 1 | 1 | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 344 | . | . | . | . | . | . | . | . | . | . | 56 | 39 | 108 | 82 | 51 | 7 | . | 1 | . | |||||||
| Meadow Brown | 193 | . | . | . | . | . | . | . | 7 | 16 | 34 | 50 | 26 | 28 | 23 | 4 | 1 | . | . | . | |||||||
| Small Heath | 3 | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Ringlet | 290 | . | . | . | . | . | . | . | . | . | 57 | 137 | 59 | 27 | 6 | 3 | . | 1 | . | . | |||||||
| Narrow-bordered 5-spot Burnet | NI | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | |||||||
| Silver Y | NI | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | 1 | |||||||
| The Cinnabar | NI | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||