
| 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 | 197 | . | . | . | . | . | . | . | . | . | 50 | 83 | 35 | 18 | . | 2 | . | . | . | . | |||||||
| Large Skipper | 26 | . | . | . | . | . | . | 4 | . | 7 | 8 | 2 | . | . | . | . | . | . | . | . | |||||||
| Brimstone | 46 | 9 | 2 | 3 | 1 | 2 | 2 | . | . | . | . | . | 3 | 1 | . | 1 | 10 | 2 | . | . | |||||||
| Large White | 5 | . | . | . | 1 | 1 | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | |||||||
| Small White | 25 | . | . | . | . | . | . | . | . | . | 1 | 3 | 2 | . | 3 | 5 | 7 | . | 2 | . | |||||||
| Green-veined White | 4 | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||||
| Orange Tip | 3 | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||||
| Common Blue | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | |||||||
| Holly Blue | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | |||||||
| Red Admiral | 27 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 6 | 7 | 7 | 3 | |||||||
| Small Tortoiseshell | 10 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 3 | 3 | 2 | . | |||||||
| Peacock | 56 | 2 | 2 | 2 | 5 | 4 | . | . | . | . | . | . | 4 | 2 | . | . | 6 | . | . | . | |||||||
| Comma | 12 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 2 | 1 | 4 | 4 | |||||||
| Silver-washed Fritillary | 33 | . | . | . | . | . | . | . | . | . | 13 | 5 | 6 | 6 | . | . | . | . | . | . | |||||||
| Marsh Fritillary | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Speckled Wood | 61 | . | . | 1 | 1 | 1 | 4 | 3 | 1 | . | . | . | 2 | 6 | 9 | 7 | 1 | 10 | 1 | . | |||||||
| Marbled White | 147 | . | . | . | . | . | . | . | 7 | 18 | 78 | 23 | 8 | 9 | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 268 | . | . | . | . | . | . | . | . | . | 32 | 90 | 54 | 43 | 17 | 2 | . | . | . | . | |||||||
| Meadow Brown | 158 | . | . | . | . | . | . | . | 22 | 24 | 17 | 23 | 13 | 22 | 10 | 8 | 1 | . | . | . | |||||||
| Ringlet | 477 | . | . | . | . | . | . | . | 43 | 122 | 206 | 74 | 13 | 8 | . | . | . | . | . | . | |||||||