
| 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 | NI | . | . | . | . | . | . | . | . | . | . | 4 | 17 | 8 | 1 | . | . | . | . | . | . | ||||||
| Large Skipper | 5 | . | . | . | . | . | . | . | . | 2 | . | . | . | . | 1 | 1 | . | . | . | . | . | ||||||
| Wood White | 4 | . | . | . | . | . | . | . | . | 2 | . | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 3 | 4 | 1 | . | ||||||
| Brimstone | 23 | 1 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | 3 | . | 4 | 2 | 2 | . | 1 | ||||||
| Large White | 17 | . | . | . | . | 4 | . | . | 2 | . | . | . | . | 3 | 3 | 1 | 2 | 1 | . | . | . | ||||||
| Small White | 41 | . | . | . | . | . | . | . | . | . | . | . | . | 7 | 1 | 4 | 9 | 3 | 7 | . | . | ||||||
| Green-veined White | 38 | . | . | . | . | 3 | 5 | 2 | 1 | . | . | . | 1 | . | 9 | 3 | . | 5 | . | . | . | ||||||
| Orange Tip | 12 | . | . | . | 2 | 9 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | ||||||
| Common Blue | 24 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 11 | 2 | 5 | . | . | . | ||||||
| Red Admiral | 28 | . | . | . | . | . | . | . | . | 1 | 1 | . | 5 | 2 | 3 | 4 | . | 2 | . | 1 | 3 | ||||||
| Painted Lady | 10 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 2 | . | 4 | . | . | . | ||||||
| Small Tortoiseshell | 12 | . | . | . | 2 | . | . | . | . | . | . | . | . | 1 | 2 | 1 | . | 2 | . | 1 | . | ||||||
| Peacock | 62 | 1 | 4 | 7 | 4 | 2 | 1 | . | 5 | . | . | . | . | 4 | 6 | 10 | 8 | 2 | . | . | . | ||||||
| Comma | NI | 5 | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 4 | 6 | ||||||
| Silver-washed Fritillary | 179 | . | . | . | . | . | . | . | . | . | . | . | 10 | 28 | 33 | 46 | 21 | 15 | . | . | . | ||||||
| Speckled Wood | NI | . | . | . | 1 | 16 | 11 | 2 | 5 | 20 | 7 | 11 | . | 1 | . | 12 | 25 | 46 | 27 | 24 | 3 | ||||||
| Wall Brown | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||
| Marbled White | 46 | . | . | . | . | . | . | . | . | . | . | . | 12 | 16 | 9 | 4 | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 360 | . | . | . | . | . | . | . | . | . | . | 3 | 11 | 110 | 84 | 96 | 33 | 9 | . | . | . | ||||||
| Meadow Brown | 571 | . | . | . | . | . | . | . | . | 6 | 13 | 55 | 131 | 67 | 87 | 58 | 18 | 6 | . | 1 | . | ||||||
| Small Heath | 8 | . | . | . | . | . | . | . | 1 | . | . | . | 2 | . | . | . | 1 | . | 1 | . | . | ||||||
| Ringlet | 169 | . | . | . | . | . | . | . | . | . | . | 3 | 17 | 84 | 52 | 12 | 3 | . | . | . | . | ||||||