
| 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 | . | . | . | . | . | . | . | . | 2 | 4 | 1 | 3 | 2 | . | . | . | . | . | ||||||||
| Large Skipper | 4 | . | . | . | . | 1 | . | 1 | . | . | . | 2 | . | . | . | . | . | . | . | ||||||||
| Large White | 28 | . | 3 | 3 | 4 | . | . | . | . | 1 | 2 | 3 | 1 | 2 | 3 | . | . | 1 | . | ||||||||
| Small White | 4 | . | 1 | . | . | . | . | . | . | . | 1 | . | . | . | 2 | . | . | . | . | ||||||||
| Green-veined White | 85 | . | 2 | 9 | 4 | . | . | . | . | . | 5 | 19 | 13 | 15 | 7 | 2 | 1 | . | . | ||||||||
| Orange Tip | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Green Hairstreak | 3 | . | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Purple Hairstreak | 2 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | . | . | ||||||||
| White-letter Hairstreak | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||||
| Small Copper | 41 | . | 1 | 9 | 3 | . | . | . | . | . | . | 2 | 3 | 6 | 5 | . | 4 | . | 1 | ||||||||
| Holly Blue | 6 | . | 2 | . | . | . | . | . | . | . | . | . | 1 | 1 | . | 1 | . | . | . | ||||||||
| White Admiral | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | ||||||||
| Red Admiral | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||||
| Small Tortoiseshell | 3 | 1 | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||||
| Peacock | 26 | . | 1 | . | . | . | . | . | . | . | . | . | 1 | 10 | 9 | 2 | 3 | . | . | ||||||||
| Comma | 2 | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | ||||||||
| High Brown Fritillary | 9 | . | . | . | . | . | . | 1 | 1 | . | 3 | 1 | . | 3 | . | . | . | . | . | ||||||||
| Silver-washed Fritillary | 4 | . | . | . | . | . | . | . | . | . | . | 2 | 2 | . | . | . | . | . | . | ||||||||
| Speckled Wood | 42 | . | 1 | 1 | 1 | 1 | . | 1 | 2 | 3 | 3 | . | . | 3 | 4 | 6 | 3 | 1 | 5 | ||||||||
| Wall Brown | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | ||||||||
| Marbled White | 3 | . | . | . | . | . | . | . | 2 | . | 1 | 1 | . | . | . | . | . | . | . | ||||||||
| Grayling | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | ||||||||
| Gatekeeper / Hedge Brown | 299 | . | . | . | . | . | . | . | . | . | 2 | 9 | 35 | 121 | 67 | 29 | 24 | 8 | . | ||||||||
| Meadow Brown | 82 | . | . | . | . | . | . | 3 | 11 | 6 | 11 | 13 | 11 | 10 | 4 | 5 | 4 | 2 | 1 | ||||||||
| Small Heath | 12 | . | . | . | 1 | 2 | . | . | 1 | . | 2 | 4 | . | . | 1 | . | . | . | . | ||||||||
| Ringlet | 46 | . | . | . | . | . | . | . | 3 | 14 | 25 | 3 | 1 | . | . | . | . | . | . | ||||||||