
| 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 | ||||||||||||||||||||||||||
| Small Skipper | 12 | . | . | . | . | . | . | . | . | . | 3 | 3 | 4 | . | . | . | . | . | . | . | |||||||
| Large Skipper | 3 | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Clouded Yellow | 2 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||||
| Brimstone | 27 | 10 | 3 | 3 | 6 | . | . | . | . | . | . | . | . | 2 | . | . | 2 | 1 | . | . | |||||||
| Large White | 106 | . | . | . | . | 12 | 9 | . | 1 | 1 | 1 | 8 | 19 | 17 | 4 | 11 | 6 | 8 | . | . | |||||||
| Small White | 8 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Green-veined White | 27 | . | . | 2 | 7 | 4 | . | . | . | . | . | . | 3 | 5 | 4 | . | 3 | 2 | . | . | |||||||
| Orange Tip | 19 | 5 | 7 | 1 | 5 | 7 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Purple Hairstreak | 13 | . | . | . | . | . | . | . | . | . | 1 | . | 8 | 2 | 2 | . | . | . | . | . | |||||||
| Brown Argus | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Common Blue | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Holly Blue | 6 | 1 | . | . | 3 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Red Admiral | 10 | . | . | . | . | 1 | 1 | . | . | . | . | . | 2 | 1 | 1 | . | 3 | 1 | . | . | |||||||
| Painted Lady | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | |||||||
| Small Tortoiseshell | 27 | . | . | . | . | . | . | 3 | 4 | . | . | 1 | . | 2 | 2 | 4 | 5 | 3 | 2 | . | |||||||
| Peacock | 52 | 16 | 17 | 2 | 8 | 1 | . | . | . | . | . | . | . | 4 | . | 2 | . | . | . | . | |||||||
| Comma | 18 | 3 | 3 | . | 1 | . | . | . | . | . | 1 | 2 | 2 | 1 | 1 | . | 1 | . | 1 | . | |||||||
| Silver-washed Fritillary | 52 | . | . | . | . | . | . | . | . | . | 5 | 7 | 11 | 9 | 5 | 3 | . | . | . | . | |||||||
| Speckled Wood | 235 | 2 | 2 | 3 | 1 | 10 | 23 | 3 | 10 | 5 | 2 | 2 | 5 | 7 | 54 | 24 | 18 | 20 | 14 | 3 | |||||||
| Gatekeeper / Hedge Brown | 67 | . | . | . | . | . | . | . | . | . | . | 7 | 18 | 9 | 4 | 6 | . | . | . | . | |||||||
| Meadow Brown | 218 | . | . | . | . | . | . | 3 | 6 | 18 | 23 | 57 | 51 | 10 | 4 | 5 | . | . | . | . | |||||||
| Ringlet | 72 | . | . | . | . | . | . | . | 6 | 25 | 10 | 5 | 5 | 1 | 1 | . | . | . | . | . | |||||||