
| 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 | 42 | . | . | . | . | . | . | . | . | . | 4 | 13 | 12 | 13 | . | . | . | . | . | . | . | . | . | ||||
| Large Skipper | 13 | . | . | . | . | . | . | 2 | 4 | 4 | 2 | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||
| Brimstone | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Large White | 16 | . | . | . | . | 1 | 1 | 1 | 1 | . | . | . | 3 | 1 | 7 | . | 3 | 1 | 2 | . | 1 | . | 1 | ||||
| Small White | 72 | . | . | 1 | . | 1 | 2 | . | 1 | . | . | 1 | 10 | 3 | 5 | . | 2 | 14 | 11 | 16 | 12 | 1 | 2 | ||||
| Green-veined White | 53 | . | . | . | . | 1 | 2 | . | . | 1 | . | . | 3 | 4 | 14 | 7 | 10 | 2 | 5 | 2 | 2 | . | . | ||||
| Orange Tip | 6 | . | . | 1 | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Small Copper | 43 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 6 | 5 | 3 | 2 | 4 | 5 | 17 | ||||
| Common Blue | 13 | . | . | . | . | . | . | . | 1 | 2 | . | . | . | . | . | . | 7 | 2 | 1 | . | . | . | . | ||||
| Holly Blue | 12 | . | . | . | . | . | . | . | . | . | . | 1 | 5 | 1 | 5 | . | . | . | . | . | . | . | . | ||||
| Red Admiral | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||
| Small Tortoiseshell | 79 | 5 | 2 | 2 | . | 1 | . | . | . | 1 | . | . | . | 2 | 2 | . | . | 20 | 16 | 13 | 8 | 2 | 3 | ||||
| Peacock | 20 | 5 | 5 | . | . | 2 | . | . | . | . | . | . | . | 1 | 2 | 2 | 2 | 1 | . | 1 | 1 | . | . | ||||
| Comma | 10 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 2 | . | 5 | ||||
| Small Pearl-bordered Fritillary | 56 | . | . | . | . | . | . | 27 | 15 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| High Brown Fritillary | 16 | . | . | . | . | . | . | . | . | 4 | 1 | 3 | 5 | 1 | . | . | . | . | . | . | . | . | . | ||||
| Silver-washed Fritillary | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | ||||
| Speckled Wood | 53 | . | . | 1 | . | 1 | 1 | 1 | 1 | 2 | . | . | . | 1 | 1 | 6 | 4 | 11 | 11 | 6 | 4 | 1 | 1 | ||||
| Marbled White | 5 | . | . | . | . | . | . | . | . | . | . | . | 3 | 2 | . | . | . | . | . | . | . | . | . | ||||
| Gatekeeper / Hedge Brown | 144 | . | . | . | . | . | . | . | . | . | . | . | 3 | 6 | 39 | 20 | 50 | 17 | 7 | 1 | 1 | . | . | ||||
| Meadow Brown | 61 | . | . | . | . | . | . | . | 1 | . | 6 | 2 | 6 | 5 | 12 | 9 | 10 | 7 | 1 | . | . | . | . | ||||
| Small Heath | 108 | . | . | . | . | . | 4 | 10 | 9 | 16 | 5 | 2 | 2 | . | . | . | 12 | 15 | 17 | 2 | 3 | 1 | . | ||||
| Ringlet | 91 | . | . | . | . | . | . | . | . | 2 | 22 | 19 | 22 | 14 | 8 | 1 | . | . | . | . | . | . | . | ||||