
| 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 | 23 | . | . | . | . | . | . | . | 19 | . | 2 | 2 | . | . | . | . | . | . | . | . | . | . | |||||
| Large Skipper | 11 | . | . | . | . | . | . | . | . | 8 | 3 | 1 | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 108 | 20 | 17 | 2 | . | 1 | 2 | . | 1 | . | 2 | 1 | 18 | . | 1 | . | . | 1 | 1 | 5 | . | . | |||||
| Large White | 27 | . | 1 | . | . | . | . | 1 | 2 | . | . | 2 | 7 | 3 | . | 3 | . | . | 4 | 5 | . | . | |||||
| Small White | 25 | . | 4 | . | . | . | . | . | . | . | 1 | 1 | 9 | . | 1 | 4 | 2 | . | . | 2 | . | . | |||||
| Green-veined White | NI | 2 | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Orange Tip | NI | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | NI | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brown Argus | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||||
| Common Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||
| White Admiral | 26 | . | . | . | . | . | . | . | 10 | 6 | 2 | 6 | 2 | . | . | . | . | . | 1 | . | . | . | |||||
| Red Admiral | 6 | . | . | . | . | . | . | . | . | . | . | 3 | . | 1 | . | . | 1 | 1 | . | . | . | . | |||||
| Peacock | 11 | 2 | 3 | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | |||||
| Comma | 18 | . | . | . | . | . | . | . | 3 | . | . | 1 | 3 | . | . | . | 1 | . | 4 | 7 | 1 | . | |||||
| Small Pearl-bordered Fritillary | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Pearl-bordered Fritillary | 3 | . | . | . | . | 3 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Silver-washed Fritillary | 187 | . | . | . | . | . | . | . | 3 | 17 | 32 | 34 | 55 | 18 | 8 | 12 | 4 | . | . | . | . | . | |||||
| Speckled Wood | 164 | . | . | . | 5 | 9 | 9 | 9 | 9 | 4 | . | . | 2 | 2 | 8 | 26 | 25 | 17 | 20 | 13 | 5 | . | |||||
| Marbled White | 2 | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 70 | . | . | . | . | . | . | . | . | 1 | 7 | 9 | 18 | 11 | 12 | 8 | 1 | . | . | . | . | . | |||||
| Meadow Brown | 148 | . | . | . | . | . | . | 5 | 25 | 14 | 32 | 29 | 20 | 14 | 1 | 5 | 1 | . | 1 | . | . | . | |||||
| Ringlet | 120 | . | . | . | . | . | . | . | 51 | 20 | 28 | 19 | 3 | 3 | . | . | . | . | . | . | . | . | |||||