
| 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 | ||||||||||||||||||||||||||
| Small Skipper | . | . | . | . | . | . | . | . | . | . | 2 | 4 | . | 4 | . | . | . | . | . | |||||||
| Large Skipper | . | . | . | . | . | . | 2 | 7 | 3 | 3 | 6 | 1 | . | . | . | . | . | . | . | |||||||
| Dingy Skipper | . | . | . | 2 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Clouded Yellow | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | 1 | . | 2 | . | . | |||||||
| Green Hairstreak | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | . | 4 | 1 | 1 | 1 | . | 1 | . | . | . | 2 | 3 | 1 | 1 | 1 | 2 | . | . | . | |||||||
| Brown Argus | . | 14 | 1 | 5 | 4 | 3 | . | 1 | . | . | . | . | . | 2 | . | 1 | 28 | 10 | 1 | |||||||
| Common Blue | . | 5 | 1 | 9 | 10 | 8 | 1 | 1 | . | . | . | 2 | 1 | 1 | . | 3 | 1 | 2 | . | |||||||
| Chalk-hill Blue | . | . | . | . | . | . | . | . | . | . | . | 20 | 63 | 78 | 34 | 40 | 1 | 1 | . | |||||||
| Adonis Blue | . | 4 | 8 | 11 | 11 | 5 | . | . | . | . | . | . | . | . | 4 | 28 | 12 | 6 | . | |||||||
| Speckled Wood | . | . | . | . | . | 1 | . | . | . | . | . | . | 3 | 1 | . | . | . | 1 | . | |||||||
| Wall Brown | 7 | 4 | . | . | . | . | . | . | . | . | . | 1 | . | . | 3 | 1 | . | . | . | |||||||
| Marbled White | . | . | . | . | . | . | . | . | 16 | 34 | 43 | 52 | 9 | 7 | . | . | . | . | . | |||||||
| Grayling | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | . | 2 | 1 | . | . | . | |||||||
| Gatekeeper/Hedge Brown | . | . | . | . | . | . | . | . | . | 1 | 13 | 37 | 60 | 50 | 22 | 11 | 3 | 2 | . | |||||||
| Meadow Brown | . | . | . | . | . | 5 | 3 | 9 | 20 | 24 | 39 | 98 | 99 | 100 | 82 | 58 | 31 | 18 | . | |||||||
| Small Heath | . | 1 | . | 1 | . | 1 | 2 | 7 | 2 | 4 | 2 | . | . | . | . | . | 1 | 2 | . | |||||||
| Ringlet | . | . | . | . | . | . | . | . | 2 | 7 | 11 | 3 | . | . | . | . | . | . | . | |||||||