
| 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 | 79 | . | . | . | . | . | . | . | . | 1 | 25 | 13 | 18 | 5 | 1 | 1 | . | . | . | . | |||||||
| Large Skipper | NI | . | . | . | . | . | . | 1 | . | 38 | 18 | 22 | 2 | 3 | . | . | . | . | . | . | |||||||
| Dingy Skipper | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Brimstone | 149 | 19 | 26 | 16 | 5 | 7 | 3 | 2 | 1 | . | . | 2 | 3 | 2 | 6 | 7 | . | 3 | 5 | . | |||||||
| Large White | 14 | . | . | . | . | . | . | . | . | . | 2 | 4 | 7 | . | . | . | . | . | . | . | |||||||
| Small White | 30 | . | . | . | 1 | 1 | . | . | . | . | 2 | 8 | 3 | 5 | . | 3 | . | 3 | 1 | . | |||||||
| Green-veined White | 20 | . | . | . | 4 | 4 | . | . | . | . | 1 | . | . | 1 | 9 | . | . | . | . | . | |||||||
| Orange Tip | 17 | . | 6 | 3 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | NI | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Brown Argus | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Common Blue | 2 | . | . | . | . | . | . | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||
| Holly Blue | 4 | . | . | . | 1 | . | . | . | . | . | . | 2 | . | . | 1 | . | . | . | . | . | |||||||
| White Admiral | 8 | . | . | . | . | . | . | . | . | 2 | 1 | 2 | . | . | . | . | . | . | . | . | |||||||
| Red Admiral | 6 | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | 1 | 1 | . | 1 | . | . | |||||||
| Painted Lady | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | |||||||
| Peacock | 42 | 8 | 4 | 6 | . | . | . | . | . | . | . | . | 2 | 4 | 4 | 5 | . | . | 1 | . | |||||||
| Comma | 11 | 4 | 1 | . | 1 | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | . | . | |||||||
| Small Pearl-bordered Fritillary | 22 | . | . | . | . | 3 | 7 | 5 | 1 | 2 | . | . | . | . | . | . | . | . | . | . | |||||||
| Pearl-bordered Fritillary | NI | . | . | 10 | 16 | 14 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Dark Green Fritillary | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||||
| Silver-washed Fritillary | 219 | . | . | . | . | . | . | . | . | 30 | 34 | 19 | 16 | 30 | 21 | 8 | 9 | 2 | . | . | |||||||
| Speckled Wood | NI | . | 2 | 10 | 2 | 4 | 5 | 2 | 6 | 6 | 1 | 1 | 4 | 12 | 3 | 1 | 4 | 8 | 11 | 1 | |||||||
| Marbled White | NI | . | . | . | . | . | . | . | . | 13 | 11 | 9 | 4 | . | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 212 | . | . | . | . | . | . | . | . | . | 7 | 26 | 57 | 57 | 44 | 17 | 11 | . | . | . | |||||||
| Meadow Brown | 270 | . | . | . | . | . | . | . | 4 | 45 | 20 | 32 | 25 | 39 | 15 | 11 | 11 | 4 | . | . | |||||||
| Small Heath | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||||
| Ringlet | 499 | . | . | . | . | . | . | . | . | 44 | 145 | 106 | 42 | 26 | 14 | 7 | 1 | . | . | . | |||||||