
| 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 | 67 | . | . | . | . | . | . | . | 1 | . | 2 | 13 | 15 | 7 | 14 | 2 | 3 | 1 | . | . | |||||||
| Large Skipper | 22 | . | . | . | . | . | . | 2 | . | 1 | 4 | 3 | 2 | 6 | . | . | . | . | . | . | |||||||
| Grizzled Skipper | 10 | . | . | . | 1 | 5 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Brimstone | 70 | 4 | 10 | 2 | . | 5 | 4 | 2 | . | . | . | 1 | . | 4 | 4 | 4 | 10 | 5 | 1 | 1 | |||||||
| Large White | 11 | . | . | . | . | 1 | 4 | 1 | . | . | . | . | . | 1 | 1 | . | 1 | . | . | 1 | |||||||
| Small White | 25 | . | . | 4 | . | 6 | . | . | . | . | . | 1 | . | . | 4 | 2 | . | 1 | . | . | |||||||
| Green-veined White | 28 | . | 1 | 4 | 8 | 2 | . | . | . | . | . | . | . | . | 1 | . | 1 | 1 | 1 | . | |||||||
| Orange Tip | 2 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | 1 | . | . | . | |||||||
| White Admiral | 2 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||||||
| Painted Lady | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Tortoiseshell | 2 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Peacock | 26 | . | 10 | . | 2 | . | . | . | . | . | . | . | . | . | 3 | 6 | 8 | 3 | . | 1 | |||||||
| Comma | 12 | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | 3 | |||||||
| Pearl-bordered Fritillary | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Silver-washed Fritillary | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 1 | . | . | . | |||||||
| Speckled Wood | 121 | . | . | 2 | 2 | 2 | 6 | 9 | 8 | 7 | . | . | . | 4 | 5 | 18 | 10 | 32 | 9 | 2 | |||||||
| Wall Brown | 5 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | 2 | 1 | . | . | . | |||||||
| Marbled White | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 51 | . | . | . | . | . | . | . | . | . | . | 11 | 10 | 5 | 8 | 7 | 4 | . | . | . | |||||||
| Meadow Brown | 99 | . | . | . | . | . | . | . | 1 | 10 | 4 | 28 | 14 | 17 | 4 | 1 | 2 | 1 | . | . | |||||||
| Small Heath | 3 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | |||||||
| Ringlet | 12 | . | . | . | . | . | . | . | . | . | 1 | 6 | . | 1 | . | . | . | . | . | . | |||||||