
| 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/Essex Skipper | 348 | . | . | . | . | . | . | . | . | 18 | 21 | 127 | 61 | 29 | 15 | 2 | 1 | . | . | . | |||||||
| Large Skipper | 64 | . | . | . | . | . | 7 | 13 | 10 | 11 | 10 | 4 | 2 | . | . | . | . | . | . | . | |||||||
| Brimstone | 18 | . | . | . | . | . | . | . | . | . | . | 2 | 1 | 5 | 7 | 2 | . | . | . | . | |||||||
| Large White | 59 | . | . | . | 3 | . | 2 | . | 2 | . | 2 | 8 | 7 | 11 | 4 | 8 | . | 2 | 3 | . | |||||||
| Small White | 55 | . | . | . | 1 | . | . | . | . | . | 1 | 2 | 18 | 6 | 12 | 2 | 5 | . | 6 | . | |||||||
| Green-veined White | 51 | . | 1 | . | 1 | . | . | . | . | 1 | 2 | 4 | 12 | 2 | 11 | 8 | 4 | 1 | . | 1 | |||||||
| Orange Tip | 16 | 4 | 3 | 5 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 2 | . | . | . | . | . | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||||
| Brown Argus | 3 | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Common Blue | 85 | . | . | . | . | 1 | 2 | 1 | . | . | . | . | 4 | 31 | 19 | 20 | 4 | . | 3 | . | |||||||
| Holly Blue | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| White Admiral | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Red Admiral | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Tortoiseshell | 7 | . | . | . | . | . | 1 | . | . | 1 | . | 1 | 1 | . | . | . | . | 1 | 1 | . | |||||||
| Peacock | 63 | 5 | 2 | 1 | 5 | . | . | . | . | . | . | . | 2 | 22 | 19 | 4 | . | . | . | . | |||||||
| Comma | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | |||||||
| Speckled Wood | 29 | . | . | 1 | . | 1 | 5 | 2 | . | . | 1 | . | . | 1 | 2 | . | 7 | 6 | 3 | . | |||||||
| Marbled White | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 207 | . | . | . | . | . | . | . | . | 3 | 18 | 57 | 55 | 27 | 4 | 3 | 2 | . | . | . | |||||||
| Meadow Brown | 340 | . | . | . | . | . | 20 | 23 | 62 | 90 | 46 | 31 | 20 | 9 | . | 1 | . | . | . | . | |||||||
| Small Heath | 12 | . | . | . | 1 | 4 | 4 | . | 1 | 1 | . | 1 | . | . | . | . | . | . | . | . | |||||||
| Ringlet | 182 | . | . | . | . | . | . | . | 2 | 35 | 67 | 27 | 3 | 1 | . | . | . | . | . | . | |||||||
| Six-spot Burnet | NI | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||||
| Silver Y | NI | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||||
| Mother Shipton | NI | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||