
| 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 | 65 | . | . | . | . | . | . | 2 | 32 | 13 | 5 | 1 | . | . | . | . | . | . | . | . | . | . | |||||
| Brimstone | 85 | 2 | 2 | . | . | . | . | 1 | . | . | . | . | . | 2 | 14 | 9 | 8 | 7 | 8 | 9 | 15 | . | |||||
| Large White | 32 | . | . | . | 1 | 1 | 1 | 5 | 2 | 2 | 1 | . | . | . | 3 | 9 | 3 | . | 1 | . | . | . | |||||
| Small White | 37 | . | . | . | . | . | . | . | . | . | . | 4 | 2 | . | 4 | 25 | . | . | . | . | . | . | |||||
| Green-veined White | 167 | . | 1 | 5 | 7 | 18 | 15 | 24 | 25 | 3 | . | . | 10 | 18 | 24 | 7 | 2 | 1 | 2 | . | . | . | |||||
| Orange Tip | 10 | . | 3 | 2 | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | |||||
| Brown Argus | NI | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Red Admiral | 12 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 1 | 2 | 2 | . | . | 1 | |||||
| Small Tortoiseshell | 5 | . | . | . | . | . | . | . | . | . | . | . | 3 | 1 | 1 | . | . | . | . | . | . | . | |||||
| Peacock | 54 | 6 | 6 | 8 | 10 | 3 | 3 | . | . | . | . | . | . | . | 8 | 10 | . | . | . | . | . | . | |||||
| Small Pearl-bordered Fritillary | 22 | . | . | . | . | . | . | 5 | 8 | 6 | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Pearl-bordered Fritillary | 29 | . | . | 2 | 5 | 7 | 6 | 7 | 2 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||
| High Brown Fritillary | 20 | . | . | . | . | . | . | . | . | 1 | . | 1 | 6 | 5 | 3 | 2 | . | . | . | . | . | . | |||||
| Meadow Brown | 69 | . | . | . | . | . | . | . | 1 | 1 | 9 | 7 | 17 | 9 | 11 | 1 | . | . | . | . | . | . | |||||