
| 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 | 61 | . | . | . | . | . | . | . | . | . | . | . | . | 21 | . | . | . | . | . | . | . | ||||||
| Small Skipper | 61 | . | . | . | . | . | . | . | . | . | 3 | 26 | 19 | 7 | . | . | . | . | . | . | . | ||||||
| Large Skipper | 29 | . | . | . | . | . | . | . | . | 2 | 16 | 2 | . | 4 | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 25 | . | . | 3 | 3 | 2 | 5 | 7 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 56 | 1 | 2 | 3 | 10 | . | 3 | 4 | . | . | . | . | 1 | 4 | 11 | . | . | . | 1 | 1 | . | ||||||
| Large White | 15 | . | . | . | . | . | . | . | . | . | . | . | 3 | 4 | 1 | . | 2 | . | . | . | . | ||||||
| Small White | 25 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | 6 | 2 | 2 | 1 | . | ||||||
| Green-veined White | 5 | . | . | . | . | . | 1 | . | . | . | . | 1 | . | . | 1 | . | 1 | . | . | . | . | ||||||
| Orange Tip | 1 | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 3 | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | 1 | . | . | . | ||||||
| Brown Argus | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | ||||||
| Common Blue | NI | . | . | . | 1 | 3 | 10 | 29 | 21 | 8 | 6 | . | . | 1 | 49 | 51 | 35 | 7 | . | 2 | . | ||||||
| Chalk-hill Blue | 137 | . | . | . | . | . | . | . | . | . | . | 1 | . | 15 | 27 | 25 | 5 | 1 | . | . | . | ||||||
| Red Admiral | 7 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | 3 | 1 | 1 | ||||||
| Painted Lady | 25 | . | . | . | . | . | . | . | . | . | 1 | . | . | 4 | 8 | 2 | . | . | . | 1 | . | ||||||
| Small Tortoiseshell | 12 | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | 5 | . | . | . | . | . | . | ||||||
| Peacock | 17 | 1 | 1 | 1 | 1 | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | ||||||
| Comma | 6 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 2 | 1 | . | ||||||
| Speckled Wood | 19 | . | . | . | . | 1 | . | . | 2 | 1 | . | . | . | 2 | 1 | 2 | 1 | 3 | . | 1 | . | ||||||
| Marbled White | 173 | . | . | . | . | . | . | . | . | . | 5 | 48 | 65 | 11 | 1 | . | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 110 | . | . | . | . | . | . | . | . | . | . | . | 8 | 41 | 17 | 1 | . | . | . | . | . | ||||||
| Meadow Brown | 100 | . | . | . | . | . | . | . | . | . | 1 | 15 | 33 | 11 | 1 | 2 | . | . | . | . | . | ||||||
| Ringlet | 212 | . | . | . | . | . | . | . | . | . | 1 | 57 | 84 | 26 | . | . | . | . | . | . | . | ||||||