
| 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 | 47 | . | . | . | . | . | . | . | . | . | . | . | 4 | 8 | 15 | 14 | 1 | . | . | . | . | . | |||||
| Large Skipper | 9 | . | . | . | . | . | . | . | . | 3 | 1 | . | . | 1 | 3 | . | . | . | . | . | . | . | |||||
| Brimstone | 25 | . | 2 | 6 | . | 4 | 1 | . | 1 | . | 3 | . | . | . | . | 1 | . | . | 1 | . | 2 | . | |||||
| Large White | 18 | . | . | 1 | . | . | . | . | 1 | . | . | . | . | 1 | 1 | 4 | 1 | 3 | . | 2 | . | . | |||||
| Small White | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 6 | . | 3 | . | . | . | . | |||||
| Green-veined White | 63 | . | . | . | 1 | 3 | 4 | . | 5 | 2 | 3 | . | . | 4 | 14 | 7 | 1 | 2 | 2 | 3 | 4 | . | |||||
| Orange Tip | 3 | . | . | 2 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | 2 | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Common Blue | 5 | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | 2 | . | . | . | |||||
| White Admiral | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||||
| Red Admiral | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | |||||
| Painted Lady | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 2 | . | . | |||||
| Small Tortoiseshell | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | . | . | |||||
| Peacock | 27 | . | 2 | 12 | . | 3 | 2 | . | . | . | . | . | . | . | . | 1 | 1 | 1 | 1 | . | 1 | . | |||||
| Comma | 8 | . | 1 | 2 | . | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | . | . | . | |||||
| Small Pearl-bordered Fritillary | 15 | . | . | . | . | . | . | . | . | 5 | 5 | 1 | 1 | . | . | . | . | . | . | . | . | . | |||||
| Pearl-bordered Fritillary | 88 | . | . | . | . | . | . | 17 | 37 | 7 | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Silver-washed Fritillary | 27 | . | . | . | . | . | . | . | . | . | . | . | . | 9 | 9 | 29 | 8 | . | . | . | . | . | |||||
| Speckled Wood | 113 | . | . | 2 | . | 4 | 7 | . | 4 | 4 | 5 | 6 | 1 | 3 | 3 | 3 | 12 | 9 | 7 | 10 | 3 | 1 | |||||
| Gatekeeper / Hedge Brown | 72 | . | . | . | . | . | . | . | . | . | . | . | . | . | 17 | 23 | 7 | 1 | 5 | . | . | . | |||||
| Meadow Brown | 149 | . | . | . | . | . | . | . | . | . | . | 9 | 18 | 20 | 36 | 23 | 13 | 4 | 4 | . | . | . | |||||
| Ringlet | 148 | . | . | . | . | . | . | . | . | . | . | 38 | 54 | 33 | 17 | 1 | . | . | . | . | . | . | |||||