
| 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 Skipper | NI | . | . | . | . | . | . | . | . | . | . | . | 22 | 32 | 28 | 23 | 4 | . | . | . | . | ||||||
| Silver-spotted Skipper | 16 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 8 | 3 | 1 | . | ||||||
| Large Skipper | 34 | . | . | . | . | . | . | . | . | 3 | 9 | 13 | 2 | 1 | 1 | . | 2 | . | . | . | . | ||||||
| Dingy Skipper | 27 | . | . | . | . | 2 | 6 | 14 | 2 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Grizzled Skipper | 11 | . | . | . | . | 1 | 2 | 3 | 3 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 36 | . | 1 | 2 | 2 | . | 7 | 7 | . | 1 | . | . | . | 7 | 2 | 4 | . | . | 1 | . | . | ||||||
| Large White | 37 | . | . | . | . | . | . | 2 | . | 1 | . | . | 1 | 4 | 7 | 9 | 5 | . | 4 | . | . | ||||||
| Small White | 212 | . | . | . | . | 4 | 3 | 5 | 5 | 1 | 3 | 6 | 6 | 24 | 18 | 25 | 16 | 10 | 14 | 29 | 18 | ||||||
| Green-veined White | 9 | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 5 | 3 | . | . | . | . | . | ||||||
| Orange Tip | 2 | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | 8 | . | . | . | . | 2 | 2 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | 32 | . | . | . | . | . | . | 1 | . | . | . | . | . | . | 1 | 4 | 5 | . | 2 | 7 | 6 | ||||||
| Small Blue | 36 | . | . | . | . | . | . | 1 | 11 | 10 | 1 | 2 | . | . | 2 | 10 | . | . | . | . | . | ||||||
| Brown Argus | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | ||||||
| Common Blue | 133 | . | . | . | . | . | . | 5 | 5 | 1 | 4 | 4 | . | . | 3 | 15 | 18 | 24 | 19 | 9 | 1 | ||||||
| Chalk-hill Blue | 682 | . | . | . | . | . | . | . | . | . | . | . | . | 16 | 125 | 294 | 110 | 34 | 20 | 3 | 5 | ||||||
| Holly Blue | 11 | . | . | . | . | 1 | . | 1 | 1 | . | . | . | . | 2 | 3 | . | 1 | . | . | . | . | ||||||
| Red Admiral | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | ||||||
| Painted Lady | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | ||||||
| Small Tortoiseshell | 7 | . | . | . | . | . | . | . | . | . | . | . | 1 | 2 | . | . | 1 | . | . | . | 1 | ||||||
| Peacock | 12 | . | 1 | 2 | . | 1 | . | . | . | . | . | . | . | . | 1 | 3 | 2 | . | . | . | . | ||||||
| Comma | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | ||||||
| Dark Green Fritillary | 4 | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | 1 | . | . | . | . | . | ||||||
| Speckled Wood | 60 | . | . | . | . | 1 | . | 1 | 2 | 5 | . | 4 | 2 | 1 | . | 1 | 9 | 2 | 5 | 11 | 4 | ||||||
| Marbled White | 52 | . | . | . | . | . | . | . | . | . | . | 15 | 13 | 13 | 8 | 3 | . | . | . | . | . | ||||||
| Gatekeeper / Hedge Brown | 39 | . | . | . | . | . | . | . | . | . | . | . | . | 3 | 13 | 4 | 9 | . | 5 | . | . | ||||||
| Meadow Brown | 810 | . | . | . | . | . | . | . | . | 1 | 31 | 56 | 20 | 14 | 59 | 128 | 114 | 112 | 59 | 61 | 27 | ||||||
| Small Heath | 459 | . | . | . | . | . | 2 | 10 | 9 | 9 | 57 | 66 | 31 | 10 | 6 | 5 | 8 | 37 | 33 | 69 | 50 | ||||||
| Ringlet | 77 | . | . | . | . | . | . | . | . | . | . | 9 | 21 | 20 | 11 | 3 | 7 | . | 2 | . | . | ||||||