
| 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 | 254 | . | . | . | . | . | . | . | . | . | 4 | 38 | 26 | 39 | 80 | 60 | 5 | . | . | . | . | ||||||
| Large Skipper | 91 | . | . | . | . | . | . | 4 | 12 | 7 | 35 | 21 | 7 | 3 | 1 | 1 | . | . | . | . | . | ||||||
| Grizzled Skipper | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 30 | 2 | 1 | 6 | 5 | 2 | . | 1 | 1 | . | . | . | . | 1 | 1 | 1 | . | . | . | 1 | . | ||||||
| Large White | 6 | . | . | . | . | . | . | . | 1 | . | . | 2 | . | 3 | . | . | . | . | . | . | . | ||||||
| Small White | 20 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 7 | 11 | . | . | 1 | . | . | ||||||
| Orange Tip | 1 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 1 | . | ||||||
| Brown Argus | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||
| Common Blue | 21 | . | . | . | . | . | . | 2 | 1 | 1 | . | . | . | . | 2 | 2 | 10 | 1 | 1 | 1 | . | ||||||
| Holly Blue | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | ||||||
| White Admiral | 6 | . | . | . | . | . | . | . | . | . | . | 4 | 1 | . | . | 1 | . | . | . | . | . | ||||||
| Red Admiral | 15 | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | 7 | 5 | . | . | . | . | . | ||||||
| Painted Lady | 39 | . | . | . | 3 | 2 | . | 2 | . | . | . | . | 1 | 5 | 9 | 9 | 5 | 1 | . | . | . | ||||||
| Small Tortoiseshell | 6 | 1 | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | 1 | 2 | . | . | . | ||||||
| Peacock | 48 | . | 2 | 6 | 2 | . | . | . | . | . | . | . | . | 7 | 8 | 11 | 3 | 2 | . | . | . | ||||||
| Comma | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | ||||||
| Small Pearl-bordered Fritillary | 7 | . | . | . | . | . | 1 | 1 | 2 | 3 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Pearl-bordered Fritillary | 4 | . | . | . | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Dark Green Fritillary | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | . | ||||||
| Silver-washed Fritillary | 29 | . | . | . | . | . | . | . | . | . | 3 | 7 | 3 | 4 | 4 | 5 | 3 | . | . | . | . | ||||||
| Marsh Fritillary | 17 | . | . | . | 2 | 5 | 6 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Speckled Wood | 13 | . | . | . | . | 1 | 1 | . | 3 | 1 | . | . | . | . | 1 | 1 | . | 1 | 2 | 1 | 1 | ||||||
| Marbled White | 187 | . | . | . | . | . | . | . | . | 4 | 28 | 64 | 42 | 18 | 18 | 3 | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 466 | . | . | . | . | . | . | . | . | 6 | 1 | 41 | 70 | 98 | 121 | 102 | 32 | 1 | . | . | . | ||||||
| Meadow Brown | 119 | . | . | . | . | . | . | . | 2 | . | 35 | 39 | 12 | 12 | 5 | 5 | 2 | . | . | . | 1 | ||||||
| Ringlet | 120 | . | . | . | . | . | . | . | . | 9 | 19 | 38 | 31 | 12 | 8 | 3 | . | . | . | . | . | ||||||