
| 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 | 275 | . | . | . | . | . | . | . | . | . | . | 10 | 61 | 51 | 5 | 3 | . | 1 | 1 | . | . | . | |||||
| Dingy Skipper | 2 | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | |||||
| Wood White | 6 | . | . | 1 | . | . | . | . | 3 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 19 | 2 | 1 | 5 | 2 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | |||||
| Large White | 57 | . | . | . | . | 2 | . | 2 | 1 | 2 | . | 1 | . | . | 6 | 6 | 2 | 2 | 2 | 3 | 5 | 1 | |||||
| Small White | 119 | . | . | 7 | 7 | 2 | 5 | 5 | 6 | 2 | . | 1 | . | . | . | 11 | 10 | 6 | 15 | 7 | 1 | 1 | |||||
| Green-veined White | 73 | . | . | 2 | . | 2 | 2 | 6 | 5 | 7 | . | 1 | . | 3 | . | . | 9 | 11 | 12 | 1 | . | . | |||||
| Orange Tip | 20 | . | . | 3 | 2 | 3 | 8 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 6 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | |||||
| Common Blue | 5 | . | . | . | . | . | . | . | . | . | . | 3 | . | . | 1 | . | . | . | . | 1 | . | . | |||||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | |||||
| Small Tortoiseshell | 4 | . | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||
| Peacock | 30 | 2 | 2 | 7 | 1 | . | . | . | . | . | . | . | . | . | . | 1 | 3 | . | 7 | 1 | 1 | . | |||||
| Comma | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||
| Small Pearl-bordered Fritillary | 4 | . | . | . | . | . | . | . | . | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Pearl-bordered Fritillary | NI | . | . | 1 | . | . | . | . | 3 | 4 | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||
| High Brown Fritillary | 5 | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | . | . | |||||
| Silver-washed Fritillary | 97 | . | . | . | . | . | . | . | . | . | . | . | . | 5 | 1 | 16 | 16 | 7 | 6 | . | . | . | |||||
| Speckled Wood | 51 | . | . | . | . | . | . | . | . | 1 | 1 | . | 8 | 2 | 1 | 2 | 7 | 1 | 10 | 1 | 2 | . | |||||
| Wall Brown | 6 | . | . | . | . | . | . | . | . | . | . | 5 | . | . | . | . | . | . | . | 1 | . | . | |||||
| Gatekeeper / Hedge Brown | 51 | . | . | . | . | . | . | . | . | . | . | . | . | 5 | 1 | 5 | 7 | 7 | 10 | . | . | . | |||||
| Meadow Brown | 142 | . | . | . | . | . | . | . | . | . | 3 | 1 | 22 | 26 | 12 | 10 | 6 | 6 | 3 | 2 | . | . | |||||
| Small Heath | 28 | . | . | . | . | 1 | . | . | . | 1 | . | 8 | 1 | . | . | . | 3 | 1 | 6 | 3 | 1 | . | |||||
| Ringlet | 100 | . | . | . | . | . | . | . | . | . | . | . | 33 | 11 | . | 1 | 7 | . | 1 | . | . | . | |||||