
| 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 | ||||||||||||||||||||||||||
| Wood White | 11 | . | . | 4 | . | 1 | 4 | 2 | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Large White | 5 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | 2 | ||||||||
| Small White | 7 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | 2 | . | ||||||||
| Green-veined White | 19 | . | . | 2 | 1 | . | . | 2 | . | . | 1 | 2 | . | 5 | 2 | 2 | . | . | . | ||||||||
| Small Copper | 5 | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | . | . | . | . | . | ||||||||
| Common Blue | 62 | . | . | . | . | . | . | . | 1 | 10 | 5 | 15 | 4 | 7 | . | . | 2 | . | . | ||||||||
| Red Admiral | 13 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | 12 | ||||||||
| Small Tortoiseshell | 5 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 2 | . | 1 | . | . | ||||||||
| Dark Green Fritillary | 42 | . | . | . | . | . | . | . | 8 | 14 | 3 | 3 | . | 2 | . | . | . | . | . | ||||||||
| Marsh Fritillary | 4 | . | . | . | . | . | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Speckled Wood | 135 | 9 | 10 | 18 | 7 | . | . | 1 | 2 | 6 | . | 1 | 1 | 1 | 1 | 12 | 16 | 26 | 20 | ||||||||
| Wall Brown | 13 | . | . | . | 2 | 2 | 1 | . | . | . | . | . | . | . | . | 2 | 1 | 1 | 4 | ||||||||
| Grayling | 23 | . | . | . | . | . | . | . | . | 1 | 1 | 4 | 6 | 5 | . | . | . | . | . | ||||||||
| Meadow Brown | 154 | . | . | . | . | . | . | . | . | 10 | 24 | 30 | 21 | 17 | 2 | 4 | 2 | . | . | ||||||||
| Small Heath | 118 | . | . | . | . | . | 6 | 3 | 17 | 26 | 12 | 6 | 10 | 6 | 2 | 2 | 1 | . | . | ||||||||
| Ringlet | 119 | . | . | . | . | . | . | . | . | 28 | 32 | 16 | 2 | 2 | . | . | . | . | . | ||||||||