
| 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 | 4 | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | 1 | . | . | . | . | |||||||
| Small Skipper | 170 | . | . | . | . | . | . | . | . | . | . | 53 | 86 | 49 | . | . | . | . | . | . | |||||||
| Large Skipper | 25 | . | . | . | . | . | . | . | 6 | 13 | 1 | 1 | . | . | . | . | . | . | . | . | |||||||
| Brimstone | 81 | 6 | 7 | 5 | 5 | 4 | 4 | . | 1 | . | . | 8 | 7 | 8 | 2 | 2 | . | . | 1 | 1 | |||||||
| Large White | 105 | . | . | . | . | . | 2 | 1 | . | . | 1 | 10 | 17 | 24 | 27 | . | 9 | 5 | . | 3 | |||||||
| Small White | 1 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | |||||||
| Green-veined White | 167 | . | . | . | 4 | 10 | 15 | 18 | 24 | 14 | . | 3 | 27 | 21 | . | 9 | 1 | 2 | 3 | 4 | |||||||
| Orange Tip | 25 | . | . | . | 4 | 13 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Green Hairstreak | NI | . | . | . | 3 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | NI | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | |||||||
| Brown Argus | 16 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 15 | . | . | . | . | |||||||
| Common Blue | 72 | . | . | . | . | 6 | 18 | 9 | . | 1 | . | . | 6 | 6 | 10 | 13 | . | . | . | . | |||||||
| Chalk-hill Blue | 16 | . | . | . | . | . | . | . | . | . | . | 6 | 8 | 3 | . | 1 | . | . | . | . | |||||||
| Holly Blue | 9 | . | . | 2 | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | |||||||
| Red Admiral | 39 | . | . | . | . | . | 4 | 4 | 4 | 6 | . | 2 | 4 | 5 | 4 | . | 1 | 1 | . | 1 | |||||||
| Painted Lady | 90 | . | . | . | . | . | 1 | 2 | . | . | . | 1 | 24 | 28 | 23 | 2 | 3 | 2 | . | . | |||||||
| Small Tortoiseshell | 27 | 2 | . | . | . | . | . | . | . | 1 | 3 | 4 | 3 | 4 | 6 | . | 2 | . | . | . | |||||||
| Peacock | 71 | . | 1 | 4 | . | . | 2 | . | . | . | . | 8 | 17 | 14 | 13 | 3 | 1 | 1 | . | . | |||||||
| Comma | 43 | . | . | 1 | . | . | 1 | 1 | . | . | . | . | 11 | 16 | 5 | . | 1 | . | 2 | 1 | |||||||
| Speckled Wood | 143 | . | 3 | 7 | 4 | 3 | 18 | 15 | 12 | 15 | . | . | . | . | 8 | 3 | 8 | 4 | 10 | 1 | |||||||
| Wall Brown | NI | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Marbled White | 80 | . | . | . | . | . | . | . | 9 | 26 | 6 | 35 | 4 | . | . | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 176 | . | . | . | . | . | . | . | . | . | 2 | 35 | 62 | 54 | 26 | . | 3 | . | . | . | |||||||
| Meadow Brown | 248 | . | . | . | . | . | . | 1 | 32 | 33 | 16 | 76 | 45 | 23 | 24 | 1 | . | . | . | . | |||||||
| Small Heath | 38 | . | . | . | 2 | 16 | 14 | 2 | . | . | . | . | . | . | . | . | . | . | 1 | . | |||||||
| Ringlet | 196 | . | . | . | . | . | . | . | . | 27 | 7 | 42 | 43 | 57 | 18 | 1 | . | . | . | . | |||||||