
| 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 | 16 | . | . | . | . | . | . | . | . | . | . | 7 | . | . | . | . | . | . | |||||||||
| Essex Skipper | 7 | . | . | . | . | . | . | . | . | . | . | 5 | . | . | . | . | . | . | |||||||||
| Large Skipper | 22 | . | . | . | . | . | . | . | 2 | . | . | 2 | 1 | . | . | . | . | . | |||||||||
| Brimstone | 9 | 5 | 1 | . | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | |||||||||
| Large White | 24 | . | . | . | . | 2 | 1 | 1 | 1 | . | . | 2 | 4 | 2 | . | . | . | . | |||||||||
| Small White | 16 | . | 1 | . | 1 | . | 1 | . | . | . | . | . | 1 | . | . | 7 | 1 | 1 | |||||||||
| Green Hairstreak | 8 | . | . | . | 1 | 3 | 3 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| Small Copper | 17 | . | . | . | . | 1 | 1 | . | . | . | . | 2 | 2 | 1 | . | . | 1 | 4 | |||||||||
| Silver-studded Blue | 11 | . | . | . | . | . | . | . | . | 3 | 1 | 1 | . | . | . | . | . | . | |||||||||
| Brown Argus | 6 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 2 | |||||||||
| Common Blue | 7 | . | . | . | . | . | . | . | . | . | . | 1 | 2 | 3 | . | . | . | . | |||||||||
| Holly Blue | 5 | . | 1 | . | . | . | . | . | . | . | . | . | 4 | . | . | . | . | . | |||||||||
| Red Admiral | 15 | . | 1 | . | . | . | . | . | . | . | 2 | 1 | 3 | 3 | . | . | 1 | . | |||||||||
| Painted Lady | 6 | . | . | . | . | . | . | . | . | . | . | 3 | . | . | 1 | . | . | . | |||||||||
| Peacock | 27 | 2 | 9 | . | 3 | 1 | 1 | . | . | . | . | 1 | 4 | . | . | . | . | . | |||||||||
| Speckled Wood | 35 | . | 1 | . | 3 | . | 1 | 1 | . | . | 3 | 5 | . | 5 | 1 | 1 | 1 | . | |||||||||
| Grayling | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | |||||||||
| Gatekeeper / Hedge Brown | 100 | . | . | . | . | . | . | . | . | . | . | 2 | 26 | 17 | 13 | 9 | 1 | . | |||||||||
| Meadow Brown | 96 | . | . | . | . | . | . | . | . | 3 | 7 | 18 | 8 | 13 | 3 | 5 | . | . | |||||||||
| Small Heath | 6 | . | . | . | . | . | . | . | . | . | . | . | . | 4 | . | 1 | . | . | |||||||||
| Ringlet | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||||||