
| 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 | 47 | . | . | . | . | . | . | . | . | . | . | 3 | 13 | 12 | 6 | 5 | 4 | 1 | . | ||||||||
| Large Skipper | 13 | . | . | . | . | . | . | . | 3 | 4 | 1 | 2 | 2 | . | . | . | . | . | . | ||||||||
| Brimstone | 3 | 2 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Large White | 27 | . | . | . | . | . | 1 | . | . | . | 2 | 1 | 1 | 4 | 5 | 3 | 5 | . | 1 | ||||||||
| Small White | 3 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 2 | . | . | ||||||||
| Green-veined White | 35 | . | 2 | 1 | 3 | 5 | 2 | . | . | . | . | . | . | 3 | 3 | 4 | 8 | . | . | ||||||||
| Orange Tip | 4 | . | 3 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| Green Hairstreak | 4 | . | . | . | . | . | . | . | . | 3 | 1 | . | . | . | . | . | . | . | . | ||||||||
| Purple Hairstreak | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 2 | . | . | ||||||||
| White-letter Hairstreak | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 2 | . | ||||||||
| Small Copper | 23 | . | . | . | 2 | 1 | . | 1 | . | . | . | . | . | . | 2 | 3 | 5 | 3 | . | ||||||||
| Common Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||||
| White Admiral | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | ||||||||
| Small Tortoiseshell | 13 | 1 | . | 1 | . | . | . | . | . | . | . | . | . | 3 | . | . | . | 3 | 3 | ||||||||
| Peacock | 19 | 5 | 2 | . | . | . | . | . | . | . | . | . | . | . | 5 | 1 | 2 | . | . | ||||||||
| Comma | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 1 | . | . | . | ||||||||
| Small Pearl-bordered Fritillary | 10 | . | . | . | . | . | 1 | 1 | 4 | 2 | . | . | . | . | . | . | . | . | . | ||||||||
| Pearl-bordered Fritillary | 4 | . | . | . | 1 | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| High Brown Fritillary | 15 | . | . | . | . | . | . | . | . | 3 | 5 | 3 | 1 | 3 | . | . | . | . | . | ||||||||
| Silver-washed Fritillary | 3 | . | . | . | . | . | . | . | . | . | . | 1 | . | 2 | . | . | . | . | . | ||||||||
| Speckled Wood | 48 | . | . | 1 | . | 1 | . | . | 1 | 4 | 6 | . | 2 | 1 | 2 | 3 | 6 | 5 | 3 | ||||||||
| Wall Brown | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 2 | . | ||||||||
| Marbled White | 2 | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | ||||||||
| Gatekeeper / Hedge Brown | 263 | . | . | . | . | . | . | . | . | . | . | 3 | 10 | 20 | 58 | 64 | 50 | 17 | . | ||||||||
| Meadow Brown | 88 | . | . | . | . | . | . | . | . | 9 | 7 | 13 | 14 | 8 | 11 | 10 | 7 | 3 | . | ||||||||
| Small Heath | 12 | . | . | . | . | . | . | 4 | . | 1 | 4 | . | . | . | . | . | . | 1 | . | ||||||||
| Ringlet | 63 | . | . | . | . | . | . | . | . | 6 | 13 | 10 | 9 | 22 | 3 | . | . | . | . | ||||||||