
| 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 | 518 | . | . | . | . | . | . | . | . | . | 2 | 3 | 94 | 148 | 100 | 33 | 9 | 1 | . | . | |||||||
| Large Skipper | 324 | . | . | . | . | . | 1 | . | 38 | 116 | 62 | 44 | 37 | 2 | 4 | . | . | . | . | . | |||||||
| Grizzled Skipper | 2 | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Wood White | 5 | . | . | . | . | 1 | . | . | . | 1 | . | . | 1 | . | . | . | . | . | . | . | |||||||
| Clouded Yellow | 45 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 11 | 14 | 3 | . | |||||||
| Brimstone | 15 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 7 | 1 | 2 | . | . | |||||||
| Large White | 42 | . | . | . | . | 3 | 2 | . | 1 | . | . | . | 3 | 4 | 6 | 14 | 2 | . | . | . | |||||||
| Small White | 246 | . | . | . | 1 | . | . | . | . | . | . | 1 | 3 | 2 | 49 | 96 | 20 | 26 | 18 | 3 | |||||||
| Green-veined White | 29 | . | . | . | 2 | 5 | 1 | 3 | . | . | . | . | . | 7 | . | 3 | . | . | . | . | |||||||
| Small Copper | 18 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 3 | 3 | 3 | 1 | 1 | |||||||
| Brown Argus | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||||
| Common Blue | 150 | . | . | . | . | . | 1 | 1 | 2 | 1 | 6 | . | . | 5 | 22 | 31 | 32 | 15 | 8 | . | |||||||
| Red Admiral | 21 | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 3 | 3 | 1 | 3 | 5 | 1 | |||||||
| Painted Lady | 74 | . | . | . | . | . | . | 1 | . | . | . | . | . | 9 | 26 | 8 | 5 | 10 | 2 | . | |||||||
| Small Tortoiseshell | 283 | . | . | . | . | . | . | . | . | . | 2 | 1 | . | 1 | 2 | 35 | 60 | 84 | 18 | 7 | |||||||
| Peacock | 561 | 9 | 3 | . | 2 | . | . | . | . | . | . | . | . | 19 | 140 | 184 | 98 | 30 | . | 1 | |||||||
| Comma | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | |||||||
| Small Pearl-bordered Fritillary | 21 | . | . | . | . | . | . | 3 | 6 | 4 | 1 | 1 | 4 | . | . | . | . | . | . | . | |||||||
| Silver-washed Fritillary | 58 | . | . | . | . | . | . | . | . | . | . | 3 | 8 | 6 | 8 | 10 | 8 | 1 | 1 | . | |||||||
| Speckled Wood | 437 | . | 1 | 2 | 1 | 7 | 6 | 21 | 31 | 16 | 7 | . | . | 3 | 6 | 22 | 30 | 118 | 51 | 35 | |||||||
| Wall Brown | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | . | |||||||
| Marbled White | 225 | . | . | . | . | . | . | . | . | . | 2 | 35 | 78 | 34 | 17 | 3 | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 804 | . | . | . | . | . | . | . | . | . | . | 1 | 73 | 247 | 212 | 85 | 17 | . | . | . | |||||||
| Meadow Brown | 389 | . | . | . | . | . | . | . | . | 18 | 24 | 24 | 37 | 69 | 87 | 62 | 7 | 57 | . | . | |||||||
| Small Heath | 19 | . | . | . | . | . | . | . | 12 | 2 | 5 | . | . | . | . | . | . | . | . | . | |||||||
| Ringlet | 772 | . | . | . | . | . | . | . | . | 54 | 81 | 115 | 251 | 54 | 64 | . | . | . | . | . | |||||||