
| 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 | 39 | . | . | . | . | . | . | . | . | 10 | 20 | 6 | 2 | 1 | . | . | . | . | . | . | |||||||
| Brimstone | 63 | 8 | 5 | . | 1 | 2 | 1 | . | . | . | . | . | . | 2 | 3 | 16 | 8 | 13 | 2 | . | |||||||
| Large White | 45 | . | . | . | . | . | 1 | 1 | . | 7 | 1 | 4 | . | . | . | 14 | 8 | 8 | . | . | |||||||
| Small White | 10 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 3 | 3 | . | |||||||
| Green-veined White | 203 | . | . | . | 1 | 5 | 13 | 16 | 8 | 18 | 2 | 11 | 5 | 22 | 19 | 29 | 14 | 14 | 4 | 3 | |||||||
| Orange Tip | 11 | . | . | . | 1 | 3 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Purple Hairstreak | 9 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 4 | 2 | . | |||||||
| Small Copper | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | |||||||
| Brown Argus | NI | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | |||||||
| Holly Blue | NI | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Tortoiseshell | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | . | . | |||||||
| Peacock | 38 | 9 | 7 | 5 | 2 | 4 | . | 1 | . | . | . | . | . | . | . | 4 | 1 | 2 | 1 | . | |||||||
| Pearl-bordered Fritillary | 18 | . | . | . | . | . | 3 | 4 | 6 | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| High Brown Fritillary | 7 | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 4 | . | . | . | . | . | |||||||
| Wall Brown | 31 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 4 | 14 | 7 | 1 | |||||||
| Meadow Brown | 186 | . | . | . | . | . | . | . | . | 4 | 11 | 33 | 76 | 42 | 8 | 9 | 3 | . | . | . | |||||||