
| 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 | . | . | 3 | 3 | 2 | 7 | 2 | 2 | 3 | 2 | . | . | . | . | . | . | |||||||
| Large Skipper | 8 | . | . | . | . | . | 2 | . | . | . | . | 3 | . | . | . | . | . | . | . | . | |||||||
| Brimstone | 21 | 4 | 1 | 3 | 1 | . | 2 | 1 | . | . | . | . | 2 | . | . | . | . | . | . | . | |||||||
| Large White | 63 | . | 2 | 4 | 3 | 7 | 3 | 2 | . | . | 2 | 1 | 12 | 2 | . | . | . | . | 4 | 2 | |||||||
| Small White | 52 | . | . | 2 | 1 | 7 | 2 | 4 | 1 | 2 | 1 | 1 | 8 | . | 1 | 2 | 1 | 6 | . | . | |||||||
| Green-veined White | 202 | . | 9 | 16 | 15 | 16 | 4 | 12 | 1 | 2 | 4 | 9 | 18 | 5 | 12 | 4 | 6 | 2 | 14 | 3 | |||||||
| Orange Tip | 23 | . | 4 | 2 | 6 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 2 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||||
| Brown Argus | 3 | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Common Blue | 9 | . | . | . | . | 1 | 1 | . | . | . | . | 1 | 2 | . | . | . | . | . | . | . | |||||||
| Red Admiral | 30 | . | . | . | . | . | . | 1 | 1 | 1 | 2 | . | . | . | 3 | 4 | 1 | 2 | 7 | 5 | |||||||
| Painted Lady | 5 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | . | . | |||||||
| Small Tortoiseshell | 29 | 1 | . | . | . | . | 1 | . | . | 2 | 2 | . | 1 | . | 3 | 2 | 2 | 1 | 4 | 1 | |||||||
| Peacock | 19 | . | 3 | 1 | . | . | . | . | . | . | . | 1 | 4 | 2 | . | . | . | . | . | . | |||||||
| Comma | 21 | . | . | . | . | . | . | . | . | 4 | 3 | . | . | . | . | . | . | 3 | 3 | 2 | |||||||
| Silver-washed Fritillary | 5 | . | . | . | . | . | . | . | . | . | 2 | . | 1 | . | . | . | . | . | . | . | |||||||
| Speckled Wood | 120 | . | . | 4 | 2 | 6 | 7 | 4 | 1 | 3 | . | . | 5 | 7 | 14 | 7 | 3 | 16 | 18 | 4 | |||||||
| Wall Brown | 2 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||||
| Marbled White | NI | . | . | . | . | . | . | . | . | . | 5 | 3 | . | . | . | . | . | . | . | . | |||||||
| Grayling | NI | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 23 | . | . | . | . | . | . | . | . | . | . | 2 | 12 | . | 1 | 1 | . | . | . | . | |||||||
| Meadow Brown | 224 | . | . | . | . | . | 14 | 17 | 19 | 37 | 36 | 14 | 10 | . | . | . | 3 | . | . | . | |||||||
| Small Heath | 8 | . | . | . | . | . | . | . | . | . | . | 1 | 3 | . | . | . | . | . | . | . | |||||||
| Ringlet | NI | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | |||||||