
| 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 | ||||||||||||||||||||||||||
| Small Skipper | . | . | . | . | . | . | . | 6 | 2 | 24 | 153 | 252 | 87 | 31 | 9 | . | . | . | . | . | ||||||
| Silver-spotted Skipper | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | ||||||
| Large Skipper | . | . | . | . | . | . | 4 | 15 | 18 | 13 | 3 | . | . | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | . | . | 14 | 14 | 28 | 24 | 9 | 7 | 8 | 1 | . | . | . | . | . | . | . | . | . | . | ||||||
| Grizzled Skipper | . | . | 3 | 2 | 3 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Pale Clouded Yellow | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | ||||||
| Clouded Yellow | . | . | . | . | . | 1 | . | . | . | . | . | . | 3 | 12 | 10 | 3 | 1 | 1 | 1 | 1 | ||||||
| Brimstone | 5 | 5 | 5 | 4 | 3 | 10 | 5 | 4 | 5 | 3 | . | 7 | 8 | 19 | 31 | 1 | . | . | 1 | 2 | ||||||
| Large White | . | . | . | . | . | 1 | 5 | 4 | 7 | . | . | 3 | 1 | . | 1 | . | . | . | 1 | . | ||||||
| Small White | . | . | . | 2 | 2 | 4 | 12 | 5 | 1 | 1 | 3 | 10 | 14 | 43 | 16 | 2 | 2 | 8 | . | 8 | ||||||
| Green-veined White | . | . | 4 | 2 | 4 | 3 | 1 | . | . | . | . | 4 | 3 | 6 | 4 | . | . | . | . | . | ||||||
| Orange Tip | . | 1 | 3 | 4 | 2 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | . | . | 2 | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| White-letter Hairstreak | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | ||||||
| Small Copper | . | . | . | . | 1 | 1 | 2 | 1 | 1 | . | . | 1 | . | 9 | 8 | 2 | 3 | 2 | 1 | 2 | ||||||
| Small Blue | . | . | . | . | . | 4 | 1 | . | 2 | 2 | . | . | . | . | 1 | . | . | . | . | . | ||||||
| Brown Argus | . | . | . | . | . | . | . | 1 | 1 | . | . | . | . | 2 | 5 | 2 | 2 | . | . | . | ||||||
| Common Blue | . | . | . | . | 2 | 20 | 26 | 26 | 20 | 3 | . | . | 22 | 50 | 70 | 31 | 19 | 13 | 1 | 2 | ||||||
| Chalk-hill Blue | . | . | . | . | . | . | . | . | . | . | 50 | 118 | 173 | 198 | 99 | 28 | 15 | 6 | . | . | ||||||
| Adonis Blue | . | . | . | . | . | 2 | 6 | 7 | 5 | . | . | . | . | . | . | 13 | 36 | 23 | 8 | 19 | ||||||
| Holly Blue | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | . | . | . | . | . | 1 | 1 | . | . | 1 | 1 | 3 | . | . | . | . | . | . | 1 | 1 | ||||||
| Painted Lady | . | . | . | . | 1 | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | ||||||
| Small Tortoiseshell | 1 | . | . | . | 1 | . | . | . | . | . | 2 | . | . | 1 | 1 | . | 5 | 1 | 2 | 3 | ||||||
| Peacock | 3 | 5 | . | 1 | . | . | . | . | . | . | . | 1 | 13 | 13 | 1 | . | . | . | . | . | ||||||
| Comma | 1 | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | 1 | 1 | 1 | ||||||
| Dark Green Fritillary | . | . | . | . | . | . | . | . | . | . | 1 | . | . | 1 | . | . | . | . | . | . | ||||||
| Speckled Wood | . | . | . | 2 | . | 1 | 2 | 3 | 4 | 3 | 4 | 2 | 3 | 5 | 4 | 6 | 26 | 9 | 1 | . | ||||||
| Wall Brown | . | . | . | . | 1 | 4 | 5 | . | 1 | . | . | . | . | 8 | 14 | 2 | 7 | 1 | . | . | ||||||
| Marbled White | . | . | . | . | . | . | . | . | 5 | 48 | 45 | 28 | 7 | . | . | . | . | . | . | . | ||||||
| Gatekeeper/Hedge Brown | . | . | . | . | . | . | . | . | . | . | 20 | 16 | 26 | 30 | 7 | . | . | . | . | . | ||||||
| Meadow Brown | . | . | . | . | . | . | 1 | 7 | 37 | 154 | 238 | 187 | 373 | 348 | 266 | 121 | 117 | 78 | 9 | 12 | ||||||
| Small Heath | . | . | . | . | 3 | 14 | 26 | 33 | 40 | 88 | 34 | 25 | 11 | 2 | 12 | 9 | 21 | 13 | 3 | 6 | ||||||
| Ringlet | . | . | . | . | . | . | . | . | . | 12 | 26 | 18 | 5 | 1 | . | . | . | . | . | . | ||||||