
| 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 | 255 | . | . | . | . | . | . | . | . | . | . | 93 | 89 | 8 | 3 | . | . | . | . | . | . | . | . | ||||
| Large Skipper | 55 | . | . | . | . | . | . | . | 3 | 14 | 18 | 5 | 6 | 3 | 1 | . | . | . | . | . | . | . | . | ||||
| Brimstone | 7 | . | . | 1 | . | . | . | 2 | . | . | . | . | . | 1 | . | . | . | . | . | . | 1 | . | . | ||||
| Large White | 41 | . | . | . | . | 2 | . | . | . | . | 1 | 2 | 11 | 6 | 2 | 1 | 3 | 1 | 1 | . | . | . | . | ||||
| Small White | 69 | . | . | 1 | . | . | . | . | . | . | . | . | 8 | 7 | . | 1 | 4 | 5 | 6 | 15 | 11 | 2 | 1 | ||||
| Green-veined White | 34 | . | . | 3 | . | 1 | . | . | . | . | . | 4 | 1 | 1 | 8 | 9 | . | . | 5 | 2 | 1 | . | 1 | ||||
| Orange Tip | 16 | . | 10 | 3 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Black Hairstreak | 2 | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Small Copper | 14 | . | . | . | . | . | . | . | . | . | 1 | . | . | 2 | 2 | 2 | 1 | . | . | . | 2 | 1 | 2 | ||||
| Brown Argus | 26 | . | . | . | . | . | . | 1 | . | . | . | . | . | 9 | 7 | . | . | 2 | . | 1 | 1 | 1 | . | ||||
| Common Blue | 126 | . | . | . | . | . | . | 10 | 1 | 3 | . | . | . | 23 | 20 | 9 | 10 | 22 | 5 | 3 | 7 | 1 | . | ||||
| White Admiral | 2 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||
| Red Admiral | 31 | . | . | . | . | . | . | . | . | . | . | . | 3 | 4 | . | . | . | . | . | 1 | . | 3 | 16 | ||||
| Painted Lady | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | 1 | . | . | . | ||||
| Small Tortoiseshell | 2 | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | . | ||||
| Peacock | 24 | 6 | . | 1 | . | . | 1 | . | . | . | . | . | . | 5 | . | . | . | . | . | . | . | . | . | ||||
| Comma | 40 | 5 | 2 | . | . | . | . | . | . | . | . | . | 7 | 1 | . | . | . | . | . | . | 4 | 1 | 8 | ||||
| Silver-washed Fritillary | NI | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||
| Speckled Wood | 13 | . | . | . | . | . | . | . | 2 | 1 | 1 | 2 | . | . | . | . | . | 4 | . | . | . | 1 | 3 | ||||
| Marbled White | 596 | . | . | . | . | . | . | . | . | 3 | 70 | 235 | 178 | . | . | . | . | . | . | . | . | . | . | ||||
| Gatekeeper / Hedge Brown | NI | . | . | . | . | . | . | . | . | . | . | 9 | 60 | 18 | 19 | 8 | . | . | . | . | . | . | . | ||||
| Meadow Brown | 246 | . | . | . | . | . | . | . | 2 | 18 | 32 | 83 | 43 | 21 | 5 | 3 | 1 | . | . | . | . | . | . | ||||
| Ringlet | 313 | . | . | . | . | . | . | . | . | . | 15 | 75 | 122 | 8 | 5 | 2 | . | . | . | . | . | . | . | ||||
| Six-spot Burnet | NI | . | . | . | . | . | . | . | . | 6 | . | 17 | . | 5 | . | . | . | . | . | . | . | . | . | ||||
| Narrow-bordered 5-spot Burnet | NI | . | . | . | . | . | . | . | . | 6 | 33 | 10 | . | . | . | . | . | . | . | . | . | . | . | ||||
| Silver Y | NI | . | . | . | 1 | 2 | 3 | . | . | . | 1 | 3 | 2 | 1 | . | . | . | 1 | . | . | . | . | 1 | ||||
| The Cinnabar | NI | . | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | ||||
| Mother Shipton | NI | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Burnet Companion | NI | . | . | . | . | . | . | . | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||