
| 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 | ||||||||||||||||||||||||||
| Large Skipper | NI | . | . | . | . | . | . | . | 1 | 1 | 2 | 1 | 2 | . | . | . | . | . | . | . | . | ||||||
| Large White | NI | . | . | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Green-veined White | NI | . | 6 | 5 | 7 | . | 5 | 1 | 2 | 3 | . | . | . | . | 1 | 2 | 1 | 1 | . | 1 | . | ||||||
| Orange Tip | NI | . | 1 | 7 | 6 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | ||||||
| Red Admiral | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | ||||||
| Painted Lady | NI | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Tortoiseshell | NI | 2 | 2 | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||
| Peacock | NI | 1 | 2 | 2 | 4 | 4 | 3 | 1 | . | . | . | . | . | . | . | 1 | 2 | 4 | 1 | . | . | ||||||
| Small Pearl-bordered Fritillary | NI | . | . | . | . | . | . | 2 | 4 | 4 | 1 | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Scotch Argus | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 15 | 18 | 2 | . | . | ||||||
| Meadow Brown | NI | . | . | . | . | . | . | . | . | . | . | 2 | 4 | . | 1 | 3 | 2 | . | . | . | . | ||||||
| Small Heath | NI | . | . | . | . | . | . | . | . | 1 | 2 | 2 | . | . | . | . | . | . | . | . | . | ||||||
| Large Heath | NI | . | . | . | . | . | . | 1 | 14 | 24 | 9 | . | . | . | . | . | . | . | . | . | . | ||||||
| Ringlet | NI | . | . | . | . | . | . | . | 1 | . | 2 | 3 | 4 | 9 | 1 | . | . | . | . | . | . | ||||||