
| 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 | ||||||||||||||||||||||||||
| Dingy Skipper | . | . | . | . | 4 | 2 | 2 | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Large White | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Green-veined White | . | . | . | 3 | 4 | 2 | 1 | 4 | . | . | . | . | 1 | . | . | 1 | 1 | . | ||||||||
| Orange Tip | . | . | . | 4 | 3 | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Green Hairstreak | . | . | 6 | 3 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Common Blue | . | . | . | . | . | . | . | . | 10 | 6 | 6 | 4 | 6 | 2 | 4 | 1 | 1 | . | ||||||||
| Small Tortoiseshell | 7 | 8 | 10 | . | 1 | . | . | . | . | . | . | . | . | 3 | 4 | 9 | . | 2 | ||||||||
| Small Pearl-bordered Fritillary | . | . | . | . | . | . | 1 | 1 | 11 | 8 | . | 2 | . | . | . | . | . | . | ||||||||
| Pearl-bordered Fritillary | . | . | . | . | . | 4 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Scotch Argus | . | . | . | . | . | . | . | . | . | . | 19 | 50 | 57 | 16 | 19 | 1 | . | . | ||||||||
| Meadow Brown | . | . | . | . | . | . | . | . | . | . | 2 | 2 | 3 | 2 | . | . | . | . | ||||||||
| Small Heath | . | . | . | . | . | . | . | 8 | 10 | 4 | 2 | 1 | . | 6 | . | . | . | . | ||||||||
| Large Heath | . | . | . | . | . | . | . | . | 2 | 1 | 4 | . | . | . | 1 | . | . | . | ||||||||