
| 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 | 392 | . | . | . | . | . | . | . | . | . | . | 11 | 89 | 60 | 101 | 19 | 29 | 1 | . | . | |||||||
| Large Skipper | 29 | . | . | . | . | . | . | . | . | 5 | 5 | 4 | 4 | . | 3 | . | . | . | . | . | |||||||
| Dingy Skipper | 27 | . | . | . | . | 1 | 9 | 7 | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Grizzled Skipper | 14 | . | . | . | . | 2 | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Brimstone | 281 | 20 | 12 | 11 | 9 | 6 | 6 | 4 | . | 2 | . | . | . | 6 | 48 | 43 | 27 | 1 | . | . | |||||||
| Large White | 81 | . | . | . | . | . | 1 | . | . | 1 | 1 | . | 14 | 3 | 10 | 6 | 2 | 1 | 1 | 1 | |||||||
| Small White | 88 | . | . | 1 | . | 1 | 2 | 1 | . | . | . | . | 7 | 5 | 8 | 15 | 11 | 7 | 7 | . | |||||||
| Green-veined White | 28 | . | . | . | . | . | . | 3 | 1 | . | . | . | 1 | 2 | 8 | 5 | 1 | . | . | . | |||||||
| Orange Tip | 49 | . | 7 | 4 | 13 | 3 | 6 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Green Hairstreak | 5 | . | . | . | . | 1 | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 43 | . | . | . | . | 2 | . | 1 | . | . | . | . | . | . | 5 | 5 | 14 | 3 | 3 | . | |||||||
| Brown Argus | 25 | . | . | . | . | . | . | 1 | . | 1 | 1 | . | . | . | . | 7 | 5 | 1 | 6 | . | |||||||
| Common Blue | 72 | . | . | . | . | . | . | . | 1 | 4 | 5 | 1 | 4 | 1 | . | 10 | 6 | 6 | 14 | . | |||||||
| Holly Blue | 10 | . | . | . | 1 | 3 | . | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | |||||||
| Duke of Burgundy Fritillary | 3 | . | . | . | . | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Red Admiral | 31 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | . | . | 1 | 16 | . | |||||||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | |||||||
| Small Tortoiseshell | 69 | . | . | . | . | . | . | . | 1 | . | . | . | . | 2 | 2 | 2 | . | 12 | 24 | . | |||||||
| Peacock | 265 | 8 | 33 | 9 | 13 | . | 5 | 3 | . | . | . | . | 1 | 12 | 98 | 9 | 3 | 1 | . | . | |||||||
| Comma | 52 | 1 | 6 | 1 | 3 | . | . | . | . | . | . | . | 6 | 1 | 8 | 2 | 2 | 3 | 6 | . | |||||||
| Pearl-bordered Fritillary | 21 | . | . | . | . | 2 | 2 | 2 | 3 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Dark Green Fritillary | 10 | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 1 | 3 | . | . | . | . | . | |||||||
| Silver-washed Fritillary | 108 | . | . | . | . | . | . | . | . | . | . | 3 | 23 | 13 | 25 | 13 | 2 | . | . | . | |||||||
| Speckled Wood | 84 | . | . | . | . | 2 | 2 | 5 | 1 | 3 | 1 | . | 1 | . | 1 | 6 | . | 5 | 20 | . | |||||||
| Marbled White | 445 | . | . | . | . | . | . | . | . | . | 2 | 76 | 85 | 71 | 61 | 3 | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 445 | . | . | . | . | . | . | . | . | . | . | 4 | 87 | 43 | 121 | 41 | 18 | . | . | . | |||||||
| Meadow Brown | 805 | . | . | . | . | . | . | . | . | 4 | 22 | 54 | 82 | 121 | 181 | 58 | 64 | 18 | 8 | . | |||||||
| Small Heath | 15 | . | . | . | . | . | . | . | . | 2 | 3 | . | 4 | . | . | . | . | . | . | . | |||||||
| Ringlet | 1012 | . | . | . | . | . | . | . | . | . | 1 | 235 | 333 | 46 | 57 | . | . | . | . | . | |||||||