
| 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 | 20 | . | . | . | . | . | . | . | . | . | 1 | . | . | 11 | 5 | . | . | . | . | . | . | . | . | ||||
| Small Skipper | 33 | . | . | . | . | . | . | . | . | . | 1 | 17 | 16 | . | . | 4 | 2 | . | . | . | . | . | . | ||||
| Silver-spotted Skipper | 17 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 9 | . | 3 | . | . | . | . | ||||
| Large Skipper | 32 | . | . | . | . | . | . | . | . | 4 | 11 | 5 | 1 | 5 | 1 | 4 | . | . | . | . | . | . | . | ||||
| Dingy Skipper | 11 | . | . | . | 9 | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Grizzled Skipper | NI | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Clouded Yellow | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | ||||
| Brimstone | 66 | 12 | . | 7 | 12 | . | 3 | 5 | . | . | . | . | . | . | 1 | 1 | 10 | . | . | 3 | . | . | 1 | ||||
| Large White | 52 | . | . | . | 1 | . | . | 1 | . | . | . | 1 | 2 | 1 | 5 | 11 | 16 | 1 | 2 | 5 | . | . | 1 | ||||
| Small White | 38 | 1 | . | . | . | . | . | 1 | . | . | . | . | . | 2 | 9 | 8 | 7 | . | 4 | . | . | . | 2 | ||||
| Green-veined White | 2 | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Orange Tip | 4 | . | . | . | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Green Hairstreak | 8 | . | . | 1 | 4 | . | 1 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Small Copper | 6 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | 1 | 2 | . | . | . | ||||
| Brown Argus | 37 | . | . | . | . | . | . | 2 | 3 | . | . | . | . | . | . | 1 | 7 | . | 18 | 2 | . | . | . | ||||
| Common Blue | 310 | . | . | . | . | . | 36 | 29 | 49 | 8 | 6 | 1 | 1 | . | 4 | 18 | 52 | 28 | 28 | 8 | 7 | 1 | . | ||||
| Chalk-hill Blue | 290 | . | . | . | . | . | . | . | . | . | . | . | . | 24 | 36 | 90 | 96 | . | 14 | . | 1 | 1 | 1 | ||||
| Adonis Blue | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Red Admiral | 12 | . | . | . | . | . | 2 | . | . | . | . | . | 1 | 1 | 1 | 1 | . | . | . | . | 1 | . | 4 | ||||
| Painted Lady | 13 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 4 | 2 | 3 | . | . | . | . | . | 1 | ||||
| Small Tortoiseshell | 13 | 4 | 3 | 1 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Peacock | 68 | 5 | 7 | 3 | 6 | . | 1 | . | . | . | . | . | . | . | 25 | 1 | 6 | . | . | . | . | . | . | ||||
| Comma | 13 | 2 | . | 1 | . | . | . | . | . | . | . | . | 1 | . | 3 | 1 | 1 | . | . | . | . | . | 2 | ||||
| Dark Green Fritillary | 8 | . | . | . | . | . | . | . | . | . | 1 | 4 | 2 | 1 | . | . | 1 | . | . | . | . | . | . | ||||
| Speckled Wood | 5 | . | . | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | ||||
| Marbled White | 427 | . | . | . | . | . | . | . | . | 2 | 76 | 111 | 186 | 61 | 23 | 1 | . | . | . | . | . | . | . | ||||
| Gatekeeper / Hedge Brown | 180 | . | . | . | . | . | . | . | . | . | . | 4 | 37 | 39 | 27 | 53 | 14 | . | . | 2 | . | . | . | ||||
| Meadow Brown | 906 | . | . | . | . | . | . | . | 1 | 44 | 94 | 95 | 98 | 127 | 57 | 60 | 100 | 57 | 44 | 24 | 18 | 6 | 13 | ||||
| Small Heath | 1 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Ringlet | 80 | . | . | . | . | . | . | . | . | 2 | 13 | 31 | 21 | 13 | 4 | 4 | 1 | . | . | . | . | . | . | ||||
| Six-spot Burnet | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | 5 | . | . | . | . | . | . | . | . | ||||
| Humming-bird Hawk-moth | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||
| Burnet Companion | NI | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||