
| 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 | 39 | . | 1 | 1 | 14 | 8 | 6 | 3 | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Large White | 7 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 3 | 1 | . | . | . | . | |||||||
| Small White | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||||
| Green-veined White | 24 | 1 | . | 1 | . | . | . | . | . | . | . | . | 5 | 7 | 5 | 1 | . | . | . | . | |||||||
| Orange Tip | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 8 | . | . | 1 | . | 2 | . | . | . | . | . | . | . | . | 1 | 1 | 1 | . | 2 | . | |||||||
| Common Blue | 192 | . | . | . | . | . | . | . | . | 9 | 16 | 4 | 28 | 10 | 37 | 26 | 18 | 21 | 7 | . | |||||||
| Red Admiral | 10 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 1 | 4 | |||||||
| Painted Lady | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | |||||||
| Small Tortoiseshell | 39 | 2 | . | . | . | . | . | . | . | . | 1 | 1 | 2 | 4 | 16 | 2 | 1 | 2 | 2 | 2 | |||||||
| Dark Green Fritillary | 31 | . | . | . | . | . | . | . | . | 2 | 8 | 11 | 3 | . | . | . | . | . | . | . | |||||||
| Marsh Fritillary | 21 | . | . | . | 1 | 1 | 7 | 2 | 5 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Speckled Wood | 91 | 5 | 8 | 3 | 1 | . | . | 2 | 4 | 11 | 10 | 7 | 4 | . | 1 | 5 | 3 | 4 | 7 | 4 | |||||||
| Wall Brown | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | |||||||
| Grayling | 34 | . | . | . | . | . | . | . | . | . | 1 | 2 | 6 | 8 | 9 | 3 | . | 1 | . | . | |||||||
| Meadow Brown | 499 | . | . | . | . | . | . | . | . | 2 | 18 | 15 | 71 | 54 | 92 | 66 | 54 | 54 | 16 | 9 | |||||||
| Small Heath | 407 | . | . | . | . | 2 | 8 | 32 | 13 | 47 | 20 | 29 | 43 | 19 | 34 | 39 | 33 | 22 | 5 | 3 | |||||||
| Ringlet | 56 | . | . | . | . | . | . | . | . | . | 17 | 14 | 6 | 6 | 3 | . | . | . | . | . | |||||||