
| 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 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | 3 | . | . | . | |||||
| Silver-spotted Skipper | 63 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 12 | 15 | 24 | . | . | . | |||||
| Large Skipper | 5 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . | 2 | . | . | . | . | . | |||||
| Dingy Skipper | 2 | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | 13 | . | . | . | . | . | 2 | 11 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Clouded Yellow | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||
| Brimstone | 22 | . | . | 3 | . | . | 4 | . | 5 | . | . | . | . | . | . | 1 | 4 | . | 3 | . | . | . | |||||
| Large White | 21 | . | . | . | . | 1 | . | 3 | 2 | . | . | . | . | . | 8 | 2 | 1 | . | . | . | . | . | |||||
| Small White | 14 | . | . | . | . | . | 1 | . | 2 | . | 1 | . | . | . | 2 | 3 | 1 | . | 2 | . | . | . | |||||
| Green-veined White | 4 | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | |||||
| Orange Tip | 1 | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | 1 | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 36 | . | . | . | . | . | . | 1 | 1 | . | 1 | . | . | . | . | 3 | 7 | 5 | 4 | . | . | . | |||||
| Brown Argus | 40 | . | . | . | . | . | . | 13 | 4 | . | 1 | . | . | . | . | 1 | 4 | 5 | 5 | . | 5 | 1 | |||||
| Common Blue | 26 | . | . | . | . | . | . | 2 | 3 | . | 4 | . | . | . | . | . | 3 | 1 | 7 | . | 2 | . | |||||
| Red Admiral | 1 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Tortoiseshell | 6 | . | . | 3 | 1 | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||
| Peacock | 13 | . | . | 4 | 2 | 1 | 3 | 1 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Comma | 3 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | . | |||||
| Speckled Wood | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||
| Gatekeeper / Hedge Brown | 136 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 22 | 27 | 15 | 21 | 22 | . | 2 | . | |||||
| Meadow Brown | 867 | . | . | . | . | . | . | . | . | . | . | 19 | 18 | 31 | 68 | 62 | 136 | 156 | 124 | . | 45 | 20 | |||||
| Small Heath | 83 | . | . | . | . | . | 3 | 12 | 5 | 6 | 12 | 14 | 3 | 1 | 2 | 1 | 1 | 6 | 4 | . | 7 | 3 | |||||
| Ringlet | 28 | . | . | . | . | . | . | . | . | . | . | 7 | 7 | 5 | 4 | . | . | . | . | . | . | . | |||||