
| 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 | . | . | . | . | . | . | . | . | . | . | 1 | 42 | 54 | 29 | 30 | 5 | 5 | 1 | 2 | . | . | |||||
| Silver-spotted Skipper | 62 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 8 | 14 | 14 | 20 | 3 | 2 | |||||
| Large Skipper | 14 | . | . | . | . | . | . | . | . | 1 | 3 | 2 | 3 | 2 | 3 | . | . | . | . | . | . | . | |||||
| Dingy Skipper | 32 | . | . | 1 | 2 | 4 | 6 | 6 | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Grizzled Skipper | 5 | . | . | 2 | . | 1 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Clouded Yellow | 8 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | 1 | 3 | |||||
| Brimstone | 97 | . | . | 5 | 1 | 6 | 5 | 1 | 2 | . | 1 | . | . | 1 | 9 | 26 | 10 | 5 | 8 | 3 | 3 | 4 | |||||
| Large White | 31 | . | . | 1 | . | 1 | 2 | . | . | . | . | . | 1 | 5 | 3 | 3 | 3 | 6 | 5 | . | . | . | |||||
| Small White | 48 | . | . | . | 3 | 2 | 2 | . | . | . | . | 1 | 2 | 2 | 4 | 9 | 5 | 6 | 5 | 3 | 2 | 2 | |||||
| Green-veined White | 14 | . | 1 | . | . | 1 | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Orange Tip | 1 | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Green Hairstreak | 5 | . | . | 1 | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | |||||
| Small Copper | 15 | . | . | . | . | . | 2 | . | . | . | . | . | . | 2 | 1 | . | 3 | . | . | . | . | 2 | |||||
| Common Blue | 204 | . | . | . | . | . | . | 6 | 4 | 5 | . | . | . | . | . | 9 | 15 | 37 | 38 | 49 | 15 | 8 | |||||
| Chalk-hill Blue | 1489 | . | . | . | . | . | . | . | . | . | . | . | 15 | 118 | 365 | 428 | 349 | 208 | 82 | 46 | 17 | 2 | |||||
| Adonis Blue | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | |||||
| Red Admiral | 29 | . | . | . | 2 | . | . | . | . | . | 1 | 5 | 4 | . | 2 | 5 | 6 | 2 | . | . | . | 1 | |||||
| Painted Lady | 4 | . | . | . | 1 | . | . | . | . | 1 | . | . | . | . | . | 2 | . | 1 | . | . | . | . | |||||
| Small Tortoiseshell | 44 | . | . | . | . | . | . | . | . | 1 | 1 | 1 | 1 | . | . | . | 2 | 18 | 5 | 10 | 3 | 1 | |||||
| Peacock | 35 | 1 | 2 | 7 | 2 | 1 | . | . | . | . | . | 2 | . | 1 | 1 | 4 | 8 | 3 | . | 1 | . | . | |||||
| Comma | 9 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3 | . | . | . | . | 3 | |||||
| Dark Green Fritillary | 13 | . | . | . | . | . | . | . | . | . | 1 | 1 | 6 | 3 | 1 | . | 1 | . | . | . | . | . | |||||
| Speckled Wood | 43 | . | . | 2 | . | 1 | 4 | 3 | 4 | . | . | . | 1 | . | 1 | 1 | 2 | 3 | 6 | 4 | 1 | . | |||||
| Marbled White | 173 | . | . | . | . | . | . | . | . | 9 | 21 | 35 | 63 | 35 | 1 | 1 | . | . | . | . | . | . | |||||
| Gatekeeper / Hedge Brown | 180 | . | . | . | . | . | . | . | . | . | 1 | . | 5 | 37 | 44 | 49 | 16 | 21 | 5 | 3 | 10 | . | |||||
| Meadow Brown | 2194 | . | . | . | . | . | . | . | 4 | 14 | 8 | 22 | 30 | 60 | 136 | 234 | 266 | 396 | 339 | 356 | 191 | 118 | |||||
| Small Heath | 178 | . | . | . | . | 2 | . | 3 | 9 | 23 | 14 | 24 | 37 | 15 | 6 | 3 | 3 | 3 | 7 | 8 | . | 2 | |||||
| Ringlet | 131 | . | . | . | . | . | . | . | . | 21 | 30 | 46 | 21 | 8 | . | . | . | . | . | . | . | . | |||||