
| 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 | . | . | . | . | . | . | . | . | . | 3 | 5 | 25 | 18 | 17 | 4 | . | 1 | . | . | . | . | |||||
| Silver-spotted Skipper | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | |||||
| Large Skipper | 20 | . | . | . | . | . | . | . | 8 | 2 | 9 | . | 2 | 2 | 1 | . | . | . | . | . | . | . | |||||
| Dingy Skipper | 6 | . | . | . | . | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | 15 | . | . | . | 4 | 3 | . | . | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Clouded Yellow | 9 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 4 | . | . | . | 3 | . | . | |||||
| Brimstone | 97 | 4 | . | 3 | 34 | 9 | 3 | 1 | 2 | . | . | . | . | . | . | 5 | 5 | . | 1 | . | . | . | |||||
| Large White | 57 | . | . | . | . | 1 | . | 1 | 1 | . | . | 1 | 4 | 6 | 5 | 11 | 16 | 1 | 1 | . | . | . | |||||
| Small White | 108 | 1 | . | 2 | 8 | 8 | 3 | 3 | . | . | . | 5 | 2 | 23 | 4 | 5 | 19 | 2 | 2 | 1 | . | . | |||||
| Green-veined White | 45 | . | . | . | 2 | 1 | . | 1 | . | . | . | . | 2 | 4 | 11 | 8 | . | 3 | 2 | . | . | . | |||||
| Orange Tip | 10 | . | . | . | 4 | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | 3 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 10 | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | 2 | . | 1 | 1 | 2 | 1 | |||||
| Small Blue | 2 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Brown Argus | 23 | . | . | . | . | . | . | 1 | 1 | . | 1 | . | . | . | . | 6 | 2 | 6 | 2 | 1 | . | . | |||||
| Common Blue | 374 | . | . | . | . | 4 | 22 | 18 | 21 | 15 | 12 | 3 | 3 | . | 7 | 56 | 57 | 31 | 31 | 24 | 4 | 4 | |||||
| Chalk-hill Blue | 36 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 10 | 7 | 2 | 2 | 4 | . | . | . | |||||
| Holly Blue | 8 | . | . | . | 4 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Duke of Burgundy Fritillary | 7 | . | . | . | 3 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Red Admiral | 9 | . | . | . | . | . | . | . | . | 1 | . | . | 1 | 5 | . | . | . | . | . | . | . | 1 | |||||
| Painted Lady | 6 | . | . | . | . | . | . | . | . | 1 | 3 | . | . | . | 2 | . | . | . | . | 1 | . | . | |||||
| Small Tortoiseshell | 46 | 1 | . | . | . | . | . | . | 1 | 1 | 4 | 1 | 2 | 12 | . | 2 | 13 | 3 | 4 | 4 | . | . | |||||
| Peacock | 36 | 10 | 3 | . | 3 | 2 | . | 1 | . | . | . | . | . | . | 5 | 2 | . | . | . | 1 | . | . | |||||
| Comma | 24 | 1 | . | 6 | 1 | . | . | . | . | . | . | . | 3 | 4 | . | . | . | . | . | 1 | 1 | . | |||||
| Speckled Wood | 55 | . | . | 1 | 2 | . | . | 4 | 3 | 1 | . | . | . | . | 1 | 1 | 7 | 12 | 8 | 5 | . | 3 | |||||
| Marbled White | 87 | . | . | . | . | . | . | . | . | 7 | 33 | 19 | 39 | 9 | . | . | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 224 | . | . | . | . | . | . | . | . | . | 1 | 2 | 20 | 78 | 49 | 27 | 7 | 2 | . | . | . | . | |||||
| Meadow Brown | 708 | . | . | . | . | . | . | . | 10 | 32 | 59 | 82 | 126 | 91 | 118 | 50 | 28 | 10 | 12 | 2 | 1 | . | |||||
| Small Heath | 126 | . | . | . | . | . | . | 5 | 6 | 9 | 8 | 16 | 33 | 12 | 5 | 1 | . | 5 | 5 | 5 | 1 | 2 | |||||
| Ringlet | 292 | . | . | . | . | . | . | . | 2 | 25 | 84 | 58 | 107 | 57 | . | . | . | . | . | . | . | . | |||||
| Latticed Heath | NI | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Silver Y | NI | . | . | . | . | . | 1 | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | . | . | |||||