
| 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 | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | . | . | . | . | . | . | |||||
| Silver-spotted Skipper | 43 | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | 21 | 4 | . | . | . | . | |||||
| Large Skipper | 2 | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | . | 18 | . | . | . | . | . | . | |||||
| Brimstone | 7 | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | 2 | . | 2 | 1 | . | . | . | . | |||||
| Large White | 13 | . | . | . | 1 | . | 1 | . | . | . | . | 1 | . | 5 | 4 | . | . | 1 | . | . | . | . | |||||
| Small White | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 1 | 1 | . | . | . | . | . | |||||
| Common Blue | 15 | . | . | . | . | 3 | 7 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 1 | . | |||||
| Red Admiral | 2 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | |||||
| Small Tortoiseshell | 5 | . | . | 1 | . | . | . | . | . | . | . | 4 | . | . | . | . | . | . | . | . | . | . | |||||
| Peacock | 3 | . | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Comma | 1 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||
| Dark Green Fritillary | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | |||||
| Speckled Wood | 4 | . | . | . | . | 1 | 1 | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||
| Marbled White | 28 | . | . | . | . | . | . | . | 1 | 1 | 7 | 13 | 5 | . | 1 | . | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 17 | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 4 | 7 | 1 | 1 | . | . | . | . | . | |||||
| Meadow Brown | 580 | . | . | . | . | . | . | . | 1 | 13 | 20 | 12 | 22 | 72 | 48 | 102 | 94 | 77 | 43 | 37 | 23 | 17 | |||||
| Small Heath | 7 | . | . | . | . | . | 1 | . | . | 1 | . | 1 | . | . | 1 | . | . | . | . | 3 | . | . | |||||
| Ringlet | 33 | . | . | . | . | . | . | . | . | 5 | 3 | 19 | 6 | . | . | . | . | . | . | . | . | . | |||||