
| 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 | 3 | . | . | . | . | . | . | . | . | 3 | . | . | . | 2 | . | . | . | . | . | . | . | ||||||
| Large Skipper | 5 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 23 | . | . | 7 | 1 | . | . | 10 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Grizzled Skipper | 5 | . | . | 3 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Clouded Yellow | 5 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | 1 | . | . | 2 | ||||||
| Brimstone | 11 | 2 | 1 | 2 | 4 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||||
| Large White | 73 | . | . | 4 | . | . | 1 | 1 | . | 2 | 1 | 3 | 3 | 20 | 6 | 5 | . | 1 | . | 3 | . | ||||||
| Small White | 397 | . | . | . | 3 | . | . | . | . | 2 | 1 | . | 4 | 3 | 3 | 21 | 45 | 60 | 109 | 22 | 18 | ||||||
| Green-veined White | 36 | . | . | . | . | . | . | 1 | . | . | . | . | 1 | . | 1 | 3 | . | . | . | 1 | 13 | ||||||
| Orange Tip | 3 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 2 | ||||||
| Brown Argus | 10 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 6 | . | 1 | . | ||||||
| Common Blue | 58 | . | . | . | . | 1 | . | . | 6 | . | 4 | 3 | 1 | . | . | 6 | . | 12 | . | 4 | . | ||||||
| Chalk-hill Blue | 17 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 6 | . | . | . | . | . | ||||||
| Adonis Blue | 85 | . | . | 1 | . | . | . | 1 | . | . | 4 | . | . | . | . | . | 24 | 23 | 13 | 3 | . | ||||||
| Red Admiral | 23 | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | . | 1 | . | . | . | 4 | . | ||||||
| Painted Lady | 11 | . | . | . | 1 | . | 1 | . | . | 1 | 1 | 1 | . | . | 1 | 1 | . | 1 | . | 2 | . | ||||||
| Small Tortoiseshell | 65 | . | . | . | . | . | . | . | . | 1 | 2 | 6 | 1 | 3 | . | 1 | 6 | . | 1 | 4 | 20 | ||||||
| Peacock | 8 | . | . | . | 7 | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | ||||||
| Marsh Fritillary | 10 | . | . | 7 | . | . | . | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Speckled Wood | 5 | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | 1 | . | . | . | ||||||
| Marbled White | 90 | . | . | . | . | . | . | . | . | . | . | 15 | 32 | 10 | . | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 87 | . | . | . | . | . | . | . | . | . | . | . | . | 15 | 6 | 33 | . | . | . | 1 | . | ||||||
| Meadow Brown | 425 | . | . | . | . | . | . | . | . | . | 5 | 8 | 24 | 6 | 6 | 37 | 58 | 82 | 46 | 6 | 8 | ||||||
| Small Heath | 260 | . | . | 1 | 2 | 4 | 1 | 6 | 8 | 26 | 31 | 10 | 17 | 2 | . | 7 | 29 | 51 | 2 | 12 | 1 | ||||||
| Ringlet | 42 | . | . | . | . | . | . | . | . | . | . | 9 | 17 | 2 | 6 | . | . | . | . | . | . | ||||||
| Silver Y | NI | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | ||||||