
| 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 | ||||||||||||||||||||||||||
| Large White | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Small White | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green-veined White | . | . | . | . | 1 | 3 | 1 | 3 | 1 | 3 | 10 | 14 | 38 | 20 | 14 | 15 | 17 | 5 | . | . | ||||||
| Orange Tip | . | . | . | . | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 2 | 1 | 1 | 1 | . | . | . | ||||||
| Common Blue | . | . | . | . | . | . | . | . | 2 | 8 | 3 | . | 1 | . | 1 | . | . | . | . | . | ||||||
| Red Admiral | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | ||||||
| Small Tortoiseshell | 1 | . | . | . | . | . | . | . | . | . | . | . | 7 | . | 2 | 2 | . | . | . | . | ||||||
| Peacock | 4 | 5 | . | . | 1 | . | . | . | . | . | . | . | 1 | 12 | 21 | 20 | 7 | 1 | . | . | ||||||
| Dark Green Fritillary | . | . | . | . | . | . | . | 1 | 5 | 27 | 12 | 16 | 1 | . | . | . | . | . | . | . | ||||||
| Scotch Argus | . | . | . | . | . | . | . | . | . | . | . | . | 27 | 6 | 12 | . | . | . | . | . | ||||||
| Meadow Brown | . | . | . | . | . | . | . | . | 3 | 17 | 17 | 23 | 13 | 1 | 1 | . | . | . | . | . | ||||||
| Small Heath | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Ringlet | . | . | . | . | . | . | . | 1 | 11 | 27 | 9 | 2 | . | . | . | . | . | . | . | . | ||||||