
| 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 | 56 | . | . | . | . | . | . | . | . | . | . | . | . | 5 | 1 | 3 | . | 15 | 10 | 19 | . | 2 | . | . | . | ||
| Large Skipper | 43 | . | . | . | . | . | . | . | . | . | . | 3 | 11 | 8 | 4 | 1 | 6 | 8 | 1 | 1 | . | . | . | . | . | ||
| Dingy Skipper | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||
| Grizzled Skipper | 2 | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||
| Brimstone | 41 | 1 | . | 1 | 2 | 1 | 2 | 2 | 2 | . | . | . | 1 | . | . | . | . | 1 | 4 | 3 | 10 | 4 | . | . | . | ||
| Large White | 12 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 4 | 1 | 2 | . | . | . | . | ||
| Small White | 25 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | 1 | 9 | . | 7 | 1 | 2 | . | . | ||
| Green-veined White | 10 | . | . | . | 1 | . | . | 2 | 4 | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | . | ||
| Orange Tip | 2 | . | . | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||
| White Admiral | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | 1 | . | . | . | . | . | . | . | ||
| Red Admiral | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | ||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||
| Small Tortoiseshell | 19 | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | 1 | 8 | 1 | 2 | . | ||
| Peacock | 49 | 5 | 4 | 3 | 3 | 1 | 3 | 3 | . | . | . | . | . | . | . | . | . | . | 2 | 3 | 6 | 5 | 5 | . | . | ||
| Comma | 5 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 1 | 1 | 1 | ||
| Small Pearl-bordered Fritillary | 57 | . | . | . | . | . | . | . | . | 10 | 15 | 16 | 9 | 4 | 2 | 1 | . | . | . | . | . | . | . | . | . | ||
| Pearl-bordered Fritillary | 67 | . | . | . | 1 | 7 | 27 | 15 | 7 | 10 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||
| Silver-washed Fritillary | 14 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 3 | 1 | 2 | . | 6 | . | . | . | . | . | ||
| Speckled Wood | 30 | . | . | . | 1 | 2 | . | 1 | . | . | 1 | . | . | . | . | . | . | 1 | 2 | 1 | 6 | 7 | 2 | . | . | ||
| Marbled White | 54 | . | . | . | . | . | . | . | . | . | . | . | . | 5 | 4 | 15 | 15 | 13 | 2 | . | . | . | . | . | . | ||
| Gatekeeper / Hedge Brown | 107 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 14 | 38 | 34 | 11 | 1 | . | . | . | ||
| Meadow Brown | 32 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 3 | 1 | . | 7 | 3 | 4 | 3 | 4 | 1 | . | . | ||
| Ringlet | 197 | . | . | . | . | . | . | . | . | . | . | . | . | 26 | 49 | 51 | 32 | 29 | 7 | 3 | . | . | . | . | . | ||
| Five-spot Burnet | NI | . | . | . | . | . | . | . | . | . | . | . | . | 7 | 1 | 2 | . | . | . | 1 | . | . | . | . | . | ||
| Speckled Yellow | NI | . | . | . | . | . | 3 | 4 | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||
| Silver Y | NI | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | 5 | . | 1 | . | . | . | ||