
| 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 | . | . | . | 1 | . | . | 2 | 41 | 47 | 78 | 91 | 52 | 23 | . | 1 | . | . | . | . | |||||||
| Large Skipper | 170 | . | . | . | . | 15 | 12 | 29 | 49 | 19 | 6 | 5 | 1 | . | . | . | . | . | . | . | |||||||
| Grizzled Skipper | 5 | . | . | 1 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Wood White | 2 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Brimstone | NI | 7 | 3 | 8 | 1 | . | . | . | . | 2 | . | 7 | 9 | 1 | 2 | . | . | 2 | 2 | 5 | |||||||
| Large White | 108 | . | . | 9 | 1 | 1 | 2 | . | . | 3 | 13 | 25 | 17 | 23 | 7 | 4 | . | . | . | . | |||||||
| Small White | 64 | . | . | 11 | . | . | . | . | . | 1 | 3 | 13 | 7 | 16 | 1 | 2 | . | . | 2 | . | |||||||
| Green-veined White | 64 | . | 3 | 8 | 6 | 3 | 1 | . | . | 6 | . | 8 | 11 | 4 | 2 | 1 | . | . | . | . | |||||||
| Orange Tip | NI | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 3 | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 1 | . | . | . | . | . | |||||||
| Common Blue | 195 | . | . | . | 28 | 15 | 21 | 12 | 10 | . | 2 | 2 | 20 | 31 | 20 | 13 | 7 | 6 | . | . | |||||||
| White Admiral | 13 | . | . | . | . | . | . | . | 4 | 2 | 1 | 2 | 1 | . | . | . | . | . | . | . | |||||||
| Red Admiral | 16 | . | . | . | . | . | . | . | . | 1 | 4 | 2 | . | 3 | 2 | . | . | 2 | . | . | |||||||
| Painted Lady | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | 1 | . | |||||||
| Small Tortoiseshell | NI | 1 | 1 | . | . | . | . | . | 2 | 1 | . | 3 | . | . | . | . | 2 | 15 | . | 1 | |||||||
| Peacock | NI | 10 | 12 | 5 | . | . | 1 | . | . | . | 5 | 42 | 8 | 9 | 4 | . | 2 | 2 | 1 | . | |||||||
| Comma | NI | 3 | . | . | . | . | . | . | 1 | 2 | 2 | . | 1 | . | . | . | . | 2 | 3 | 3 | |||||||
| Pearl-bordered Fritillary | 6 | . | . | . | 5 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Speckled Wood | 204 | . | . | 12 | 5 | 5 | 3 | 9 | 12 | . | . | 1 | 1 | 6 | 2 | 19 | 25 | 48 | 11 | 3 | |||||||
| Wall Brown | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Marbled White | 128 | . | . | . | . | . | . | 2 | 25 | 41 | 16 | 9 | 2 | . | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 206 | . | . | . | . | . | . | . | . | 11 | 16 | 42 | 48 | 79 | 4 | . | . | . | . | . | |||||||
| Meadow Brown | 702 | . | . | . | . | . | 7 | 51 | 90 | 95 | 51 | 111 | 95 | 99 | 8 | 2 | . | . | . | . | |||||||
| Small Heath | 23 | . | . | 3 | 4 | 3 | 6 | 1 | 3 | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Ringlet | 457 | . | . | . | . | . | . | 6 | 46 | 167 | 61 | 45 | 22 | 3 | . | . | . | . | . | . | |||||||