
| 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 | 31 | . | . | . | . | . | 2 | . | 6 | . | 8 | 2 | 8 | 2 | 3 | . | . | . | . | . | . | . | |||||
| Large Skipper | 6 | . | 1 | . | . | . | . | 2 | . | 1 | 1 | . | 1 | . | . | . | . | . | . | . | . | . | |||||
| Dingy Skipper | 16 | . | 5 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | 11 | . | 3 | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Large White | 20 | . | . | 1 | 1 | . | . | . | . | . | 2 | . | 2 | 8 | 1 | 1 | . | 1 | 2 | . | 1 | . | |||||
| Small White | NI | . | 3 | . | . | 1 | 1 | . | . | . | 3 | . | 2 | . | 2 | . | . | 1 | 1 | . | . | . | |||||
| Green-veined White | 3 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 2 | . | . | . | . | . | . | . | |||||
| Orange Tip | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | . | . | 2 | |||||
| Brown Argus | 18 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 8 | 2 | 1 | . | 2 | 1 | . | . | |||||
| Common Blue | 130 | . | . | . | 5 | 9 | 3 | 9 | 2 | . | 3 | . | 5 | 2 | 16 | 23 | 24 | 14 | 6 | 6 | . | 2 | |||||
| Chalk-hill Blue | 365 | . | . | . | . | . | . | . | . | . | 3 | 6 | 81 | 106 | 87 | 28 | 42 | 4 | 3 | 3 | 1 | 1 | |||||
| Red Admiral | 9 | . | . | . | . | 2 | . | . | 1 | 1 | . | . | 1 | . | . | . | . | . | . | 2 | 1 | 1 | |||||
| Painted Lady | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Tortoiseshell | 33 | . | . | . | . | . | . | . | 1 | . | 1 | . | . | 1 | . | 6 | 11 | 10 | . | . | 2 | 1 | |||||
| Peacock | 2 | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | |||||
| Comma | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | |||||
| Silver-washed Fritillary | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||||
| Speckled Wood | 16 | . | . | . | . | 1 | 1 | . | . | . | 3 | . | 1 | 2 | 2 | . | 1 | 3 | 1 | . | 1 | . | |||||
| Wall Brown | 10 | . | . | . | 1 | . | . | . | . | . | 1 | . | 2 | 3 | 1 | . | 3 | . | . | . | . | . | |||||
| Marbled White | 71 | . | . | . | . | . | . | . | 5 | 8 | 31 | 13 | 7 | 1 | 6 | . | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 152 | . | . | . | . | . | . | . | . | . | 19 | . | 78 | 17 | 26 | 12 | . | . | . | . | . | . | |||||
| Meadow Brown | 680 | . | . | . | . | . | 4 | 13 | 44 | 25 | 57 | 37 | 94 | 58 | 107 | 99 | 64 | 56 | 13 | 6 | 2 | 1 | |||||
| Small Heath | 360 | . | 5 | 4 | 28 | 62 | 22 | 22 | 44 | 12 | 26 | 6 | 1 | . | 30 | 8 | 16 | 25 | 17 | 12 | 3 | 1 | |||||
| Ringlet | 24 | . | . | . | . | . | . | . | 2 | 11 | 7 | . | 2 | . | 2 | . | . | . | . | . | . | . | |||||