
| 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 | 115 | . | . | . | . | . | . | . | . | . | 7 | 6 | 4 | 24 | 10 | 20 | 7 | 5 | 1 | . | . | ||||||
| Large Skipper | 17 | . | . | . | . | . | . | . | . | . | 4 | 2 | 4 | 2 | . | 1 | . | . | . | . | . | ||||||
| Dingy Skipper | 11 | . | . | . | . | . | 6 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Grizzled Skipper | 45 | . | . | . | . | 4 | 19 | 3 | 7 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | ||||||
| Brimstone | 138 | 16 | 9 | 9 | 10 | 25 | 8 | 8 | 10 | 2 | 1 | . | 1 | 5 | . | 6 | 1 | 2 | 1 | . | 1 | ||||||
| Large White | 4 | . | . | . | . | . | . | . | 1 | 1 | . | 1 | . | . | . | 1 | . | . | . | . | . | ||||||
| Small White | NI | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | 6 | . | 1 | . | . | ||||||
| Green-veined White | 17 | . | . | . | 3 | 6 | . | . | 1 | . | . | . | . | . | 1 | 2 | . | . | . | . | . | ||||||
| Orange Tip | 2 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 4 | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | 1 | 1 | . | . | . | . | ||||||
| Brown Argus | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | ||||||
| Common Blue | 34 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 11 | 7 | 8 | 2 | . | . | ||||||
| Chalk-hill Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||
| Holly Blue | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | 1 | . | . | ||||||
| White Admiral | 6 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 1 | 1 | . | . | . | . | . | ||||||
| Painted Lady | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||
| Small Tortoiseshell | 33 | . | . | . | . | . | . | . | . | . | 4 | 3 | 1 | . | . | 1 | 4 | 11 | 2 | . | . | ||||||
| Peacock | 96 | 9 | 6 | 13 | 3 | 2 | 3 | 1 | 2 | 1 | . | . | . | 3 | 3 | 15 | 12 | 13 | 5 | . | . | ||||||
| Comma | 7 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 1 | . | ||||||
| Small Pearl-bordered Fritillary | NI | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Silver-washed Fritillary | 14 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 4 | 2 | . | . | . | . | . | ||||||
| Marsh Fritillary | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Speckled Wood | 69 | . | . | . | 2 | 5 | . | . | 1 | 1 | 5 | 5 | 2 | 1 | 4 | 6 | 10 | 3 | . | 5 | 3 | ||||||
| Wall Brown | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | ||||||
| Marbled White | NI | . | . | . | . | . | . | . | . | . | . | 6 | 13 | 6 | . | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 189 | . | . | . | . | . | . | . | . | . | . | . | . | 24 | 50 | 33 | 19 | 8 | 4 | . | . | ||||||
| Meadow Brown | 144 | . | . | . | . | . | . | . | . | . | 7 | 10 | 14 | 35 | 14 | 11 | 4 | 2 | 2 | . | . | ||||||
| Small Heath | 20 | . | . | . | . | . | 1 | 1 | 5 | 1 | 3 | 4 | 1 | . | . | . | 1 | 1 | . | . | . | ||||||
| Ringlet | NI | . | . | . | . | . | . | . | . | . | . | . | 2 | 10 | . | . | . | . | . | . | . | ||||||