
| 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 | 198 | . | . | . | . | . | . | . | . | . | . | . | . | 17 | 32 | 58 | 18 | 48 | 18 | 6 | 1 | . | . | ||||
| Silver-spotted Skipper | 8 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 7 | . | . | . | ||||
| Large Skipper | 91 | . | . | . | . | . | . | . | . | 2 | 11 | 14 | 27 | 14 | 14 | 9 | . | . | . | . | . | . | . | ||||
| Dingy Skipper | 40 | . | . | . | . | 5 | 11 | 8 | . | 5 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | ||||
| Grizzled Skipper | 41 | . | . | . | . | 2 | 15 | 10 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Brimstone | 92 | . | 3 | 2 | 2 | 1 | 14 | 11 | 1 | 10 | 8 | 7 | 5 | 1 | 1 | . | 4 | 6 | 1 | 2 | . | . | 1 | ||||
| Large White | 38 | . | . | . | . | 1 | . | . | . | . | . | 1 | . | 1 | 3 | 3 | 5 | 17 | 5 | . | 2 | . | . | ||||
| Small White | 359 | . | 1 | . | . | . | . | 5 | . | 1 | . | 1 | . | 2 | 21 | 18 | 16 | 53 | 66 | 47 | 93 | 8 | . | ||||
| Green-veined White | 95 | . | . | . | . | . | . | . | . | . | 5 | . | . | . | . | 2 | 52 | 16 | 10 | 9 | . | 1 | . | ||||
| Orange Tip | 12 | . | . | . | . | 1 | 6 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Green Hairstreak | 11 | . | . | . | . | . | 2 | 3 | . | 1 | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | ||||
| Small Copper | 14 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | 1 | . | 1 | 2 | 3 | 1 | 1 | ||||
| Small Blue | 7 | . | . | . | . | . | . | . | 1 | . | . | . | 3 | 1 | . | . | . | . | . | 2 | . | . | . | ||||
| Brown Argus | 19 | . | . | . | . | . | . | 1 | . | . | . | 3 | 1 | . | . | . | . | 2 | 4 | 4 | 12 | . | . | ||||
| Common Blue | 177 | . | . | . | . | . | . | 10 | 6 | 10 | 6 | 7 | 2 | 6 | . | . | 4 | 22 | 29 | 40 | 21 | 6 | . | ||||
| Chalk-hill Blue | 60 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 5 | 19 | 20 | 7 | 40 | . | . | ||||
| Duke of Burgundy Fritillary | 17 | . | . | . | . | 3 | 2 | 6 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Red Admiral | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 10 | . | . | ||||
| Small Tortoiseshell | 59 | . | . | 1 | . | . | 1 | . | . | . | 1 | . | 3 | 8 | 23 | 6 | 1 | . | 3 | 7 | 41 | 1 | . | ||||
| Peacock | 30 | 3 | 2 | 5 | 1 | 2 | 4 | 1 | . | . | 1 | . | . | . | . | 1 | 1 | 1 | 1 | . | . | . | 3 | ||||
| Comma | 3 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | . | . | . | . | . | . | ||||
| Speckled Wood | 11 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 2 | 8 | 1 | . | ||||
| Marbled White | 165 | . | . | . | . | . | . | . | . | . | . | . | 3 | 63 | 57 | 37 | 4 | 1 | . | . | . | . | . | ||||
| Gatekeeper / Hedge Brown | 293 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 59 | 54 | 122 | 39 | 16 | 12 | . | . | ||||
| Meadow Brown | 651 | . | . | . | . | . | . | . | . | . | 5 | 1 | 28 | 121 | 109 | 128 | 65 | 88 | 50 | 41 | 13 | 2 | . | ||||
| Small Heath | 91 | . | . | . | . | . | . | 1 | 1 | . | . | 1 | 12 | 12 | 7 | 2 | 2 | 1 | 5 | 7 | 13 | 10 | 1 | ||||
| Ringlet | 200 | . | . | . | . | . | . | . | . | . | . | . | . | 65 | 32 | 92 | 1 | 9 | 1 | . | . | . | . | ||||
| Latticed Heath | NI | . | . | . | . | . | . | . | . | 3 | . | 15 | . | . | . | . | . | . | . | . | . | . | . | ||||
| The Cinnabar | NI | . | . | . | . | 2 | . | 3 | 4 | 8 | 4 | 8 | . | 2 | 2 | . | . | . | . | . | . | . | . | ||||
| Mother Shipton | NI | . | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||
| Burnet Companion | NI | . | . | . | . | . | . | 4 | . | 7 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | ||||